From 7db5f91cc69ea9033dcfc49a024395e24ce43223 Mon Sep 17 00:00:00 2001 From: Natanael Copa Date: Thu, 27 Aug 2009 09:05:32 +0000 Subject: main/*-grsec: upgrade kernel fixes #135 --- main/dahdi-linux-grsec/APKBUILD | 4 +- main/iscsitarget-grsec/APKBUILD | 8 +- main/kqemu-grsec/APKBUILD | 2 +- main/linux-grsec/APKBUILD | 15 +- .../grsecurity-2.1.14-2.6.30.4-200908132040.patch | 44777 ------------------ .../grsecurity-2.1.14-2.6.30.5-200908261614.patch | 45168 +++++++++++++++++++ main/linux-grsec/kernelconfig | 6 +- main/xtables-addons-grsec/APKBUILD | 8 +- 8 files changed, 45185 insertions(+), 44803 deletions(-) delete mode 100644 main/linux-grsec/grsecurity-2.1.14-2.6.30.4-200908132040.patch create mode 100644 main/linux-grsec/grsecurity-2.1.14-2.6.30.5-200908261614.patch (limited to 'main') diff --git a/main/dahdi-linux-grsec/APKBUILD b/main/dahdi-linux-grsec/APKBUILD index f6d1ec5ff9..578bc8cfa2 100644 --- a/main/dahdi-linux-grsec/APKBUILD +++ b/main/dahdi-linux-grsec/APKBUILD @@ -14,16 +14,14 @@ _realname=dahdi-linux pkgname=${_realname}-${_flavor} pkgver=2.2.0 -pkgrel=8 +pkgrel=9 pkgdesc="Digium Asterisk Hardware Device Interface drivers" url="http://www.asterisk.org" license="GPL" -#depends="dahdi-linux linux-${_flavor}=${_kernelver}" depends="dahdi-linux linux-${_flavor}=${_kernelver}" # we need wget and tar because make install downloads firmware and uses fancy # options for tar and wget. makedepends="linux-${_flavor}-dev=${_kernelver} wget tar perl" -#makedepends="linux-${_flavor}-dev wget tar perl" install= subpackages= source="http://downloads.digium.com/pub/telephony/dahdi-linux/releases/${_realname}-$pkgver.tar.gz diff --git a/main/iscsitarget-grsec/APKBUILD b/main/iscsitarget-grsec/APKBUILD index 19ee8afbe9..71c9e4a113 100644 --- a/main/iscsitarget-grsec/APKBUILD +++ b/main/iscsitarget-grsec/APKBUILD @@ -15,15 +15,13 @@ if [ -f ../iscsitarget/APKBUILD ]; then fi pkgname=${_realname}-${_flavor} pkgver=${pkgver:-0.4.17} -pkgrel=7 +pkgrel=8 pkgdesc="$_flavor kernel modules for iscsitarget" url="http://iscsitarget.sourceforge.net/" license="GPL-2" -#depends="linux-${_flavor}=${_kernelver}" -depends="linux-${_flavor}" +depends="linux-${_flavor}=${_kernelver}" install= -#makedepends="linux-${_flavor}-dev=${_kernelver}" -makedepends="linux-${_flavor}-dev" +makedepends="linux-${_flavor}-dev=${_kernelver}" subpackages= source="http://downloads.sourceforge.net/$_realname/$_realname-$pkgver.tar.gz iscsitarget-0.4.17+linux-2.6.28.patch diff --git a/main/kqemu-grsec/APKBUILD b/main/kqemu-grsec/APKBUILD index ef1e2f9515..1aef78d55e 100644 --- a/main/kqemu-grsec/APKBUILD +++ b/main/kqemu-grsec/APKBUILD @@ -12,7 +12,7 @@ _abi_release=$pkgver-${_flavor} pkgname=${_realname}-${_flavor} pkgver=1.4.0_pre1 _realver=1.4.0pre1 -pkgrel=0 +pkgrel=1 pkgdesc="$_flavor kernel modules for kemu" url="http://www.nongnu.org/qemu/" license="GPL" diff --git a/main/linux-grsec/APKBUILD b/main/linux-grsec/APKBUILD index 8670e32eb0..caac111b88 100644 --- a/main/linux-grsec/APKBUILD +++ b/main/linux-grsec/APKBUILD @@ -2,9 +2,9 @@ _flavor=grsec pkgname=linux-${_flavor} -pkgver=2.6.30.4 +pkgver=2.6.30.5 _kernver=2.6.30 -pkgrel=5 +pkgrel=0 pkgdesc="Linux kernel with grsecurity" url=http://grsecurity.net depends="mkinitfs" @@ -13,11 +13,10 @@ _config=${config:-kernelconfig} install="$pkgname.post-install $pkgname.post-upgrade" source="ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_kernver.tar.bz2 ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2 - grsecurity-2.1.14-2.6.30.4-200908132040.patch + grsecurity-2.1.14-2.6.30.5-200908261614.patch linux-nbma-mroute-v4-2.6.30.diff net-next-2.6.git-5ef12d98a19254ee5dc851bd83e214b43ec1f725.patch $_config - $install " subpackages="$pkgname-dev" license="GPL-2" @@ -112,10 +111,8 @@ dev() { } md5sums="7a80058a6382e5108cdb5554d1609615 linux-2.6.30.tar.bz2 -d0fc44b54ba5953140b3f2aa9a1f2580 patch-2.6.30.4.bz2 -624831f0d2b2caeb2b4756a5b6290c7d grsecurity-2.1.14-2.6.30.4-200908132040.patch +47841c7ff5c81a7b349a79f2fa8e9138 patch-2.6.30.5.bz2 +a725c0779f365787127c71810877586d grsecurity-2.1.14-2.6.30.5-200908261614.patch 7420c0b1095335990313656b114e1379 linux-nbma-mroute-v4-2.6.30.diff ca05fd252783b82e01610e775cf56498 net-next-2.6.git-5ef12d98a19254ee5dc851bd83e214b43ec1f725.patch -d9461120ad8657df4bcf0112f8fb2bb8 kernelconfig -2834240b15805b248ef2a973b1ad4416 linux-grsec.post-install -2834240b15805b248ef2a973b1ad4416 linux-grsec.post-upgrade" +ede34b2613f54cf1eae8f37a61d0e085 kernelconfig" diff --git a/main/linux-grsec/grsecurity-2.1.14-2.6.30.4-200908132040.patch b/main/linux-grsec/grsecurity-2.1.14-2.6.30.4-200908132040.patch deleted file mode 100644 index 71f75d54ee..0000000000 --- a/main/linux-grsec/grsecurity-2.1.14-2.6.30.4-200908132040.patch +++ /dev/null @@ -1,44777 +0,0 @@ -diff -urNp linux-2.6.30.4/arch/alpha/include/asm/atomic.h linux-2.6.30.4/arch/alpha/include/asm/atomic.h ---- linux-2.6.30.4/arch/alpha/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/include/asm/atomic.h 2009-07-30 09:48:09.872868955 -0400 -@@ -246,6 +246,9 @@ static __inline__ int atomic64_add_unles - #define atomic64_dec_and_test(v) (atomic64_sub_return(1, (v)) == 0) - - #define atomic_inc(v) atomic_add(1,(v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) - #define atomic64_inc(v) atomic64_add(1,(v)) - - #define atomic_dec(v) atomic_sub(1,(v)) -diff -urNp linux-2.6.30.4/arch/alpha/include/asm/elf.h linux-2.6.30.4/arch/alpha/include/asm/elf.h ---- linux-2.6.30.4/arch/alpha/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/include/asm/elf.h 2009-07-30 09:48:09.873636524 -0400 -@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28) -+#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19) -+#endif -+ - /* $0 is set by ld.so to a pointer to a function which might be - registered using atexit. This provides a mean for the dynamic - linker to call DT_FINI functions for shared libraries that have -diff -urNp linux-2.6.30.4/arch/alpha/include/asm/kmap_types.h linux-2.6.30.4/arch/alpha/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/alpha/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/include/asm/kmap_types.h 2009-07-30 09:48:09.873636524 -0400 -@@ -24,7 +24,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/alpha/include/asm/pgtable.h linux-2.6.30.4/arch/alpha/include/asm/pgtable.h ---- linux-2.6.30.4/arch/alpha/include/asm/pgtable.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/include/asm/pgtable.h 2009-07-30 09:48:09.874706218 -0400 -@@ -101,6 +101,17 @@ struct vm_area_struct; - #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS) - #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) - #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE) - - #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x)) -diff -urNp linux-2.6.30.4/arch/alpha/kernel/module.c linux-2.6.30.4/arch/alpha/kernel/module.c ---- linux-2.6.30.4/arch/alpha/kernel/module.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/kernel/module.c 2009-07-30 09:48:09.875723461 -0400 -@@ -182,7 +182,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, - - /* The small sections were sorted to the end of the segment. - The following should definitely cover them. */ -- gp = (u64)me->module_core + me->core_size - 0x8000; -+ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000; - got = sechdrs[me->arch.gotsecindex].sh_addr; - - for (i = 0; i < n; i++) { -diff -urNp linux-2.6.30.4/arch/alpha/kernel/osf_sys.c linux-2.6.30.4/arch/alpha/kernel/osf_sys.c ---- linux-2.6.30.4/arch/alpha/kernel/osf_sys.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/kernel/osf_sys.c 2009-07-30 09:48:09.875723461 -0400 -@@ -1215,6 +1215,10 @@ arch_get_unmapped_area(struct file *filp - merely specific addresses, but regions of memory -- perhaps - this feature should be incorporated into all ports? */ - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); - if (addr != (unsigned long) -ENOMEM) -@@ -1222,8 +1226,8 @@ arch_get_unmapped_area(struct file *filp - } - - /* Next, try allocating at TASK_UNMAPPED_BASE. */ -- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), -- len, limit); -+ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit); -+ - if (addr != (unsigned long) -ENOMEM) - return addr; - -diff -urNp linux-2.6.30.4/arch/alpha/mm/fault.c linux-2.6.30.4/arch/alpha/mm/fault.c ---- linux-2.6.30.4/arch/alpha/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/alpha/mm/fault.c 2009-07-30 09:48:09.876636955 -0400 -@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct * - __reload_thread(pcb); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int ldah, ldq, jmp; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(ldq, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmp, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (ldq & 0xFFFF0000U) == 0xA77B0000U && -+ jmp == 0x6BFB0000U) -+ { -+ unsigned long r27, addr; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL; -+ -+ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ err = get_user(r27, (unsigned long *)addr); -+ if (err) -+ break; -+ -+ regs->r27 = r27; -+ regs->pc = r27; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #2 */ -+ unsigned int ldah, lda, br; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(lda, (unsigned int *)(regs->pc+4)); -+ err |= get_user(br, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (lda & 0xFFFF0000U) == 0xA77B0000U && -+ (br & 0xFFE00000U) == 0xC3E00000U) -+ { -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL; -+ -+ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int br; -+ -+ err = get_user(br, (unsigned int *)regs->pc); -+ -+ if (!err && (br & 0xFFE00000U) == 0xC3800000U) { -+ unsigned int br2, ldq, nop, jmp; -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver; -+ -+ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ err = get_user(br2, (unsigned int *)addr); -+ err |= get_user(ldq, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ err |= get_user(jmp, (unsigned int *)(addr+12)); -+ err |= get_user(resolver, (unsigned long *)(addr+16)); -+ -+ if (err) -+ break; -+ -+ if (br2 == 0xC3600000U && -+ ldq == 0xA77B000CU && -+ nop == 0x47FF041FU && -+ jmp == 0x6B7B0000U) -+ { -+ regs->r28 = regs->pc+4; -+ regs->r27 = addr+16; -+ regs->pc = resolver; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif - - /* - * This routine handles page faults. It determines the address, -@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns - good_area: - si_code = SEGV_ACCERR; - if (cause < 0) { -- if (!(vma->vm_flags & VM_EXEC)) -+ if (!(vma->vm_flags & VM_EXEC)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp()); -+ do_group_exit(SIGKILL); -+#else - goto bad_area; -+#endif -+ -+ } - } else if (!cause) { - /* Allow reads even for write-only mappings */ - if (!(vma->vm_flags & (VM_READ | VM_WRITE))) -diff -urNp linux-2.6.30.4/arch/arm/include/asm/atomic.h linux-2.6.30.4/arch/arm/include/asm/atomic.h ---- linux-2.6.30.4/arch/arm/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/arm/include/asm/atomic.h 2009-07-30 09:48:09.876636955 -0400 -@@ -235,6 +235,9 @@ static inline int atomic_add_unless(atom - - #define atomic_inc(v) atomic_add(1, v) - #define atomic_dec(v) atomic_sub(1, v) -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i, v) atomic_add(i, v) -+#define atomic_sub_unchecked(i, v) atomic_sub(i, v) - - #define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0) - #define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0) -diff -urNp linux-2.6.30.4/arch/arm/include/asm/elf.h linux-2.6.30.4/arch/arm/include/asm/elf.h ---- linux-2.6.30.4/arch/arm/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/arm/include/asm/elf.h 2009-07-30 09:48:09.877630671 -0400 -@@ -103,7 +103,14 @@ extern int arm_elf_read_implies_exec(con - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00008000UL -+ -+#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#endif - - /* When the program starts, a1 contains a pointer to a function to be - registered with atexit, as per the SVR4 ABI. A value of 0 means we -diff -urNp linux-2.6.30.4/arch/arm/include/asm/kmap_types.h linux-2.6.30.4/arch/arm/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/arm/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/arm/include/asm/kmap_types.h 2009-07-30 09:48:09.878525050 -0400 -@@ -19,6 +19,7 @@ enum km_type { - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_L2_CACHE, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/arm/include/asm/uaccess.h linux-2.6.30.4/arch/arm/include/asm/uaccess.h ---- linux-2.6.30.4/arch/arm/include/asm/uaccess.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/arm/include/asm/uaccess.h 2009-07-30 09:48:09.878525050 -0400 -@@ -398,6 +398,9 @@ extern unsigned long __must_check __strn - - static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); - else /* security hole - plug it */ -@@ -407,6 +410,9 @@ static inline unsigned long __must_check - - static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; -diff -urNp linux-2.6.30.4/arch/arm/mach-ns9xxx/clock.c linux-2.6.30.4/arch/arm/mach-ns9xxx/clock.c ---- linux-2.6.30.4/arch/arm/mach-ns9xxx/clock.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/arm/mach-ns9xxx/clock.c 2009-07-30 09:48:09.879705308 -0400 -@@ -195,7 +195,7 @@ static int clk_debugfs_open(struct inode - return single_open(file, clk_debugfs_show, NULL); - } - --static struct file_operations clk_debugfs_operations = { -+static const struct file_operations clk_debugfs_operations = { - .open = clk_debugfs_open, - .read = seq_read, - .llseek = seq_lseek, -diff -urNp linux-2.6.30.4/arch/arm/mm/mmap.c linux-2.6.30.4/arch/arm/mm/mmap.c ---- linux-2.6.30.4/arch/arm/mm/mmap.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/arm/mm/mmap.c 2009-07-30 09:48:09.881684524 -0400 -@@ -62,6 +62,10 @@ arch_get_unmapped_area(struct file *filp - if (len > TASK_SIZE) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -74,10 +78,10 @@ arch_get_unmapped_area(struct file *filp - return addr; - } - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -93,8 +97,8 @@ full_search: - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -diff -urNp linux-2.6.30.4/arch/avr32/include/asm/atomic.h linux-2.6.30.4/arch/avr32/include/asm/atomic.h ---- linux-2.6.30.4/arch/avr32/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/avr32/include/asm/atomic.h 2009-07-30 09:48:09.881684524 -0400 -@@ -176,9 +176,12 @@ static inline int atomic_sub_if_positive - #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) - - #define atomic_sub(i, v) (void)atomic_sub_return(i, v) -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) - #define atomic_add(i, v) (void)atomic_add_return(i, v) -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) - #define atomic_dec(v) atomic_sub(1, (v)) - #define atomic_inc(v) atomic_add(1, (v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) - - #define atomic_dec_return(v) atomic_sub_return(1, v) - #define atomic_inc_return(v) atomic_add_return(1, v) -diff -urNp linux-2.6.30.4/arch/avr32/include/asm/elf.h linux-2.6.30.4/arch/avr32/include/asm/elf.h ---- linux-2.6.30.4/arch/avr32/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/avr32/include/asm/elf.h 2009-07-30 09:48:09.881684524 -0400 -@@ -85,8 +85,14 @@ typedef struct user_fpu_struct elf_fpreg - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00001000UL -+ -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -diff -urNp linux-2.6.30.4/arch/avr32/include/asm/kmap_types.h linux-2.6.30.4/arch/avr32/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/avr32/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/avr32/include/asm/kmap_types.h 2009-07-30 09:48:09.882650296 -0400 -@@ -22,7 +22,8 @@ D(10) KM_IRQ0, - D(11) KM_IRQ1, - D(12) KM_SOFTIRQ0, - D(13) KM_SOFTIRQ1, --D(14) KM_TYPE_NR -+D(14) KM_CLEARPAGE, -+D(15) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/avr32/mm/fault.c linux-2.6.30.4/arch/avr32/mm/fault.c ---- linux-2.6.30.4/arch/avr32/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/avr32/mm/fault.c 2009-07-30 09:48:09.882650296 -0400 -@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru - - int exception_trace = 1; - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address and the - * problem, and then passes it off to one of the appropriate routines. -@@ -157,6 +174,16 @@ bad_area: - up_read(&mm->mmap_sem); - - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) { -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - if (exception_trace && printk_ratelimit()) - printk("%s%s[%d]: segfault at %08lx pc %08lx " - "sp %08lx ecr %lu\n", -diff -urNp linux-2.6.30.4/arch/blackfin/include/asm/atomic.h linux-2.6.30.4/arch/blackfin/include/asm/atomic.h ---- linux-2.6.30.4/arch/blackfin/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/blackfin/include/asm/atomic.h 2009-07-30 09:48:09.882650296 -0400 -@@ -178,6 +178,9 @@ static inline void atomic_set_mask(unsig - - #endif /* !CONFIG_SMP */ - -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) -+#define atomic_inc_unchecked(v) atomic_inc((v)) - #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) - #define atomic_dec_return(v) atomic_sub_return(1,(v)) - #define atomic_inc_return(v) atomic_add_return(1,(v)) -diff -urNp linux-2.6.30.4/arch/blackfin/include/asm/kmap_types.h linux-2.6.30.4/arch/blackfin/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/blackfin/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/blackfin/include/asm/kmap_types.h 2009-07-30 09:48:09.883618875 -0400 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/blackfin/mach-bf561/coreb.c linux-2.6.30.4/arch/blackfin/mach-bf561/coreb.c ---- linux-2.6.30.4/arch/blackfin/mach-bf561/coreb.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/blackfin/mach-bf561/coreb.c 2009-07-30 09:48:09.883618875 -0400 -@@ -292,7 +292,7 @@ static int coreb_ioctl(struct inode *ino - return retval; - } - --static struct file_operations coreb_fops = { -+static const struct file_operations coreb_fops = { - .owner = THIS_MODULE, - .llseek = coreb_lseek, - .read = coreb_read, -diff -urNp linux-2.6.30.4/arch/cris/arch-v10/drivers/sync_serial.c linux-2.6.30.4/arch/cris/arch-v10/drivers/sync_serial.c ---- linux-2.6.30.4/arch/cris/arch-v10/drivers/sync_serial.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/cris/arch-v10/drivers/sync_serial.c 2009-07-30 09:48:09.883618875 -0400 -@@ -244,7 +244,7 @@ static unsigned sync_serial_prescale_sha - - #define NUMBER_OF_PORTS 2 - --static struct file_operations sync_serial_fops = { -+static const struct file_operations sync_serial_fops = { - .owner = THIS_MODULE, - .write = sync_serial_write, - .read = sync_serial_read, -diff -urNp linux-2.6.30.4/arch/cris/arch-v32/drivers/mach-fs/gpio.c linux-2.6.30.4/arch/cris/arch-v32/drivers/mach-fs/gpio.c ---- linux-2.6.30.4/arch/cris/arch-v32/drivers/mach-fs/gpio.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/cris/arch-v32/drivers/mach-fs/gpio.c 2009-07-30 12:06:52.081911892 -0400 -@@ -855,7 +855,7 @@ gpio_leds_ioctl(unsigned int cmd, unsign - return 0; - } - --struct file_operations gpio_fops = { -+struct struct file_operations gpio_fops = { - .owner = THIS_MODULE, - .poll = gpio_poll, - .ioctl = gpio_ioctl, -diff -urNp linux-2.6.30.4/arch/cris/include/asm/atomic.h linux-2.6.30.4/arch/cris/include/asm/atomic.h ---- linux-2.6.30.4/arch/cris/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/cris/include/asm/atomic.h 2009-07-30 09:48:09.884412595 -0400 -@@ -152,6 +152,10 @@ static inline int atomic_add_unless(atom - } - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -+#define atomic_inc_unchecked(v) atomic_inc((v)) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - /* Atomic operations are already serializing */ - #define smp_mb__before_atomic_dec() barrier() - #define smp_mb__after_atomic_dec() barrier() -diff -urNp linux-2.6.30.4/arch/cris/include/asm/kmap_types.h linux-2.6.30.4/arch/cris/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/cris/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/cris/include/asm/kmap_types.h 2009-07-30 09:48:09.884412595 -0400 -@@ -19,6 +19,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/frv/include/asm/atomic.h linux-2.6.30.4/arch/frv/include/asm/atomic.h ---- linux-2.6.30.4/arch/frv/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/frv/include/asm/atomic.h 2009-07-30 09:48:09.885412202 -0400 -@@ -114,6 +114,10 @@ static inline void atomic_dec(atomic_t * - atomic_sub_return(1, v); - } - -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - #define atomic_dec_return(v) atomic_sub_return(1, (v)) - #define atomic_inc_return(v) atomic_add_return(1, (v)) - -diff -urNp linux-2.6.30.4/arch/frv/include/asm/kmap_types.h linux-2.6.30.4/arch/frv/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/frv/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/frv/include/asm/kmap_types.h 2009-07-30 09:48:09.885412202 -0400 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/h8300/include/asm/atomic.h linux-2.6.30.4/arch/h8300/include/asm/atomic.h ---- linux-2.6.30.4/arch/h8300/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/h8300/include/asm/atomic.h 2009-07-30 09:48:09.885412202 -0400 -@@ -26,6 +26,7 @@ static __inline__ int atomic_add_return( - } - - #define atomic_add(i, v) atomic_add_return(i, v) -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) - #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) - - static __inline__ int atomic_sub_return(int i, atomic_t *v) -@@ -38,6 +39,7 @@ static __inline__ int atomic_sub_return( - } - - #define atomic_sub(i, v) atomic_sub_return(i, v) -+#define atomic_subUnchecked(i, v) atomic_sub(i, v) - #define atomic_sub_and_test(i,v) (atomic_sub_return(i, v) == 0) - - static __inline__ int atomic_inc_return(atomic_t *v) -@@ -51,6 +53,7 @@ static __inline__ int atomic_inc_return( - } - - #define atomic_inc(v) atomic_inc_return(v) -+#define atomic_inc_unchecked(v) atomic_inc(v) - - /* - * atomic_inc_and_test - increment and test -diff -urNp linux-2.6.30.4/arch/h8300/include/asm/kmap_types.h linux-2.6.30.4/arch/h8300/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/h8300/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/h8300/include/asm/kmap_types.h 2009-07-30 09:48:09.885412202 -0400 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/ia64/ia32/binfmt_elf32.c linux-2.6.30.4/arch/ia64/ia32/binfmt_elf32.c ---- linux-2.6.30.4/arch/ia64/ia32/binfmt_elf32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/ia32/binfmt_elf32.c 2009-07-30 09:48:09.886522893 -0400 -@@ -45,6 +45,13 @@ randomize_stack_top(unsigned long stack_ - - #define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack)) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#endif -+ - /* Ugly but avoids duplication */ - #include "../../../fs/binfmt_elf.c" - -@@ -69,11 +76,11 @@ ia32_install_gate_page (struct vm_area_s - } - - --static struct vm_operations_struct ia32_shared_page_vm_ops = { -+static const struct vm_operations_struct ia32_shared_page_vm_ops = { - .fault = ia32_install_shared_page - }; - --static struct vm_operations_struct ia32_gate_page_vm_ops = { -+static const struct vm_operations_struct ia32_gate_page_vm_ops = { - .fault = ia32_install_gate_page - }; - -diff -urNp linux-2.6.30.4/arch/ia64/ia32/ia32priv.h linux-2.6.30.4/arch/ia64/ia32/ia32priv.h ---- linux-2.6.30.4/arch/ia64/ia32/ia32priv.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/ia32/ia32priv.h 2009-07-30 09:48:09.886522893 -0400 -@@ -296,7 +296,14 @@ typedef struct compat_siginfo { - #define ELF_DATA ELFDATA2LSB - #define ELF_ARCH EM_386 - --#define IA32_STACK_TOP IA32_PAGE_OFFSET -+#ifdef CONFIG_PAX_RANDUSTACK -+#define __IA32_DELTA_STACK (current->mm->delta_stack) -+#else -+#define __IA32_DELTA_STACK 0UL -+#endif -+ -+#define IA32_STACK_TOP (IA32_PAGE_OFFSET - __IA32_DELTA_STACK) -+ - #define IA32_GATE_OFFSET IA32_PAGE_OFFSET - #define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE - -diff -urNp linux-2.6.30.4/arch/ia64/include/asm/atomic.h linux-2.6.30.4/arch/ia64/include/asm/atomic.h ---- linux-2.6.30.4/arch/ia64/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/include/asm/atomic.h 2009-07-30 09:48:09.886522893 -0400 -@@ -201,8 +201,11 @@ atomic64_add_negative (__s64 i, atomic64 - #define atomic64_inc_and_test(v) (atomic64_add_return(1, (v)) == 0) - - #define atomic_add(i,v) atomic_add_return((i), (v)) -+#define atomic_add_unchecked(i,v) atomic_add((i), (v)) - #define atomic_sub(i,v) atomic_sub_return((i), (v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i), (v)) - #define atomic_inc(v) atomic_add(1, (v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) - #define atomic_dec(v) atomic_sub(1, (v)) - - #define atomic64_add(i,v) atomic64_add_return((i), (v)) -diff -urNp linux-2.6.30.4/arch/ia64/include/asm/elf.h linux-2.6.30.4/arch/ia64/include/asm/elf.h ---- linux-2.6.30.4/arch/ia64/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/include/asm/elf.h 2009-07-30 09:48:09.887468908 -0400 -@@ -43,6 +43,13 @@ - */ - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#endif -+ - #define PT_IA_64_UNWIND 0x70000001 - - /* IA-64 relocations: */ -diff -urNp linux-2.6.30.4/arch/ia64/include/asm/kmap_types.h linux-2.6.30.4/arch/ia64/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/ia64/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/include/asm/kmap_types.h 2009-07-30 09:48:09.887468908 -0400 -@@ -22,7 +22,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/ia64/include/asm/pgtable.h linux-2.6.30.4/arch/ia64/include/asm/pgtable.h ---- linux-2.6.30.4/arch/ia64/include/asm/pgtable.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/include/asm/pgtable.h 2009-07-30 09:48:09.887468908 -0400 -@@ -143,6 +143,17 @@ - #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW) -+# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+# define PAGE_COPY_NOEXEC PAGE_COPY -+#endif -+ - #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX) - #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX) - #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX) -diff -urNp linux-2.6.30.4/arch/ia64/include/asm/uaccess.h linux-2.6.30.4/arch/ia64/include/asm/uaccess.h ---- linux-2.6.30.4/arch/ia64/include/asm/uaccess.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/include/asm/uaccess.h 2009-07-30 11:10:48.660249525 -0400 -@@ -257,7 +257,7 @@ __copy_from_user (void *to, const void _ - const void *__cu_from = (from); \ - long __cu_len = (n); \ - \ -- if (__access_ok(__cu_to, __cu_len, get_fs())) \ -+ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) \ - __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \ - __cu_len; \ - }) -@@ -269,7 +269,7 @@ __copy_from_user (void *to, const void _ - long __cu_len = (n); \ - \ - __chk_user_ptr(__cu_from); \ -- if (__access_ok(__cu_from, __cu_len, get_fs())) \ -+ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) \ - __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \ - __cu_len; \ - }) -diff -urNp linux-2.6.30.4/arch/ia64/kernel/module.c linux-2.6.30.4/arch/ia64/kernel/module.c ---- linux-2.6.30.4/arch/ia64/kernel/module.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/kernel/module.c 2009-07-30 09:48:09.888412729 -0400 -@@ -312,8 +312,7 @@ module_alloc (unsigned long size) - void - module_free (struct module *mod, void *module_region) - { -- if (mod && mod->arch.init_unw_table && -- module_region == mod->module_init) { -+ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) { - unw_remove_unwind_table(mod->arch.init_unw_table); - mod->arch.init_unw_table = NULL; - } -@@ -499,15 +498,39 @@ module_frob_arch_sections (Elf_Ehdr *ehd - } - - static inline int -+in_init_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx; -+} -+ -+static inline int -+in_init_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw; -+} -+ -+static inline int - in_init (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_init < mod->init_size; -+ return in_init_rx(mod, addr) || in_init_rw(mod, addr); -+} -+ -+static inline int -+in_core_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx; -+} -+ -+static inline int -+in_core_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw; - } - - static inline int - in_core (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_core < mod->core_size; -+ return in_core_rx(mod, addr) || in_core_rw(mod, addr); - } - - static inline int -@@ -690,7 +713,14 @@ do_reloc (struct module *mod, uint8_t r_ - break; - - case RV_BDREL: -- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core); -+ if (in_init_rx(mod, val)) -+ val -= (uint64_t) mod->module_init_rx; -+ else if (in_init_rw(mod, val)) -+ val -= (uint64_t) mod->module_init_rw; -+ else if (in_core_rx(mod, val)) -+ val -= (uint64_t) mod->module_core_rx; -+ else if (in_core_rw(mod, val)) -+ val -= (uint64_t) mod->module_core_rw; - break; - - case RV_LTV: -@@ -824,15 +854,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, - * addresses have been selected... - */ - uint64_t gp; -- if (mod->core_size > MAX_LTOFF) -+ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF) - /* - * This takes advantage of fact that SHF_ARCH_SMALL gets allocated - * at the end of the module. - */ -- gp = mod->core_size - MAX_LTOFF / 2; -+ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2; - else -- gp = mod->core_size / 2; -- gp = (uint64_t) mod->module_core + ((gp + 7) & -8); -+ gp = (mod->core_size_rx + mod->core_size_rw) / 2; -+ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8); - mod->arch.gp = gp; - DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp); - } -diff -urNp linux-2.6.30.4/arch/ia64/kernel/sys_ia64.c linux-2.6.30.4/arch/ia64/kernel/sys_ia64.c ---- linux-2.6.30.4/arch/ia64/kernel/sys_ia64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/kernel/sys_ia64.c 2009-07-30 09:48:09.888412729 -0400 -@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil - if (REGION_NUMBER(addr) == RGN_HPAGE) - addr = 0; - #endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ addr = mm->free_area_cache; -+ else -+#endif -+ - if (!addr) - addr = mm->free_area_cache; - -@@ -61,9 +68,9 @@ arch_get_unmapped_area (struct file *fil - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -+ if (start_addr != mm->mmap_base) { - /* Start a new search --- just in case we missed some holes. */ -- addr = TASK_UNMAPPED_BASE; -+ addr = mm->mmap_base; - goto full_search; - } - return -ENOMEM; -diff -urNp linux-2.6.30.4/arch/ia64/mm/fault.c linux-2.6.30.4/arch/ia64/mm/fault.c ---- linux-2.6.30.4/arch/ia64/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/mm/fault.c 2009-07-30 09:48:09.889484146 -0400 -@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned - return pte_present(pte); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - void __kprobes - ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs) - { -@@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long addres - mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) - | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); - -- if ((vma->vm_flags & mask) != mask) -+ if ((vma->vm_flags & mask) != mask) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) { -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; - -+ } -+ - survive: - /* - * If for any reason at all we couldn't handle the fault, make -diff -urNp linux-2.6.30.4/arch/ia64/mm/init.c linux-2.6.30.4/arch/ia64/mm/init.c ---- linux-2.6.30.4/arch/ia64/mm/init.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/ia64/mm/init.c 2009-07-30 09:48:09.889484146 -0400 -@@ -122,6 +122,19 @@ ia64_init_addr_space (void) - vma->vm_start = current->thread.rbs_bot & PAGE_MASK; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) { -+ vma->vm_flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->mm->pax_flags & MF_PAX_MPROTECT) -+ vma->vm_flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - down_write(¤t->mm->mmap_sem); - if (insert_vm_struct(current->mm, vma)) { -diff -urNp linux-2.6.30.4/arch/m32r/include/asm/atomic.h linux-2.6.30.4/arch/m32r/include/asm/atomic.h ---- linux-2.6.30.4/arch/m32r/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/m32r/include/asm/atomic.h 2009-07-30 09:48:09.889484146 -0400 -@@ -308,6 +308,10 @@ static __inline__ void atomic_set_mask(u - local_irq_restore(flags); - } - -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - /* Atomic operations are already serializing on m32r */ - #define smp_mb__before_atomic_dec() barrier() - #define smp_mb__after_atomic_dec() barrier() -diff -urNp linux-2.6.30.4/arch/m32r/include/asm/kmap_types.h linux-2.6.30.4/arch/m32r/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/m32r/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/m32r/include/asm/kmap_types.h 2009-07-30 09:48:09.890443797 -0400 -@@ -21,7 +21,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/m32r/lib/usercopy.c linux-2.6.30.4/arch/m32r/lib/usercopy.c ---- linux-2.6.30.4/arch/m32r/lib/usercopy.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/m32r/lib/usercopy.c 2009-07-30 09:48:09.890443797 -0400 -@@ -14,6 +14,9 @@ - unsigned long - __generic_copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - prefetch(from); - if (access_ok(VERIFY_WRITE, to, n)) - __copy_user(to,from,n); -@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, - unsigned long - __generic_copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - prefetchw(to); - if (access_ok(VERIFY_READ, from, n)) - __copy_user_zeroing(to,from,n); -diff -urNp linux-2.6.30.4/arch/m68k/include/asm/atomic_mm.h linux-2.6.30.4/arch/m68k/include/asm/atomic_mm.h ---- linux-2.6.30.4/arch/m68k/include/asm/atomic_mm.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/m68k/include/asm/atomic_mm.h 2009-07-30 09:48:09.890443797 -0400 -@@ -186,6 +186,10 @@ static __inline__ int atomic_add_unless( - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -+#define atomic_inc_unchecked(v) atomic_inc((v)) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - /* Atomic operations are already serializing */ - #define smp_mb__before_atomic_dec() barrier() - #define smp_mb__after_atomic_dec() barrier() -diff -urNp linux-2.6.30.4/arch/m68k/include/asm/atomic_no.h linux-2.6.30.4/arch/m68k/include/asm/atomic_no.h ---- linux-2.6.30.4/arch/m68k/include/asm/atomic_no.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/m68k/include/asm/atomic_no.h 2009-07-30 09:48:09.890443797 -0400 -@@ -151,5 +151,9 @@ static __inline__ int atomic_add_unless( - #define atomic_dec_return(v) atomic_sub_return(1,(v)) - #define atomic_inc_return(v) atomic_add_return(1,(v)) - -+#define atomic_inc_unchecked(v) atomic_inc((v)) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - #include - #endif /* __ARCH_M68KNOMMU_ATOMIC __ */ -diff -urNp linux-2.6.30.4/arch/m68k/include/asm/kmap_types.h linux-2.6.30.4/arch/m68k/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/m68k/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/m68k/include/asm/kmap_types.h 2009-07-30 09:48:09.891413194 -0400 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/mips/include/asm/atomic.h linux-2.6.30.4/arch/mips/include/asm/atomic.h ---- linux-2.6.30.4/arch/mips/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/include/asm/atomic.h 2009-07-30 09:48:09.891413194 -0400 -@@ -381,6 +381,9 @@ static __inline__ int atomic_add_unless( - * Atomically increments @v by 1. - */ - #define atomic_inc(v) atomic_add(1, (v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) - - /* - * atomic_dec - decrement and test -diff -urNp linux-2.6.30.4/arch/mips/include/asm/elf.h linux-2.6.30.4/arch/mips/include/asm/elf.h ---- linux-2.6.30.4/arch/mips/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/include/asm/elf.h 2009-07-30 09:48:09.891413194 -0400 -@@ -364,4 +364,11 @@ extern int dump_task_fpu(struct task_str - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - #endif - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #endif /* _ASM_ELF_H */ -diff -urNp linux-2.6.30.4/arch/mips/include/asm/kmap_types.h linux-2.6.30.4/arch/mips/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/mips/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/include/asm/kmap_types.h 2009-07-30 09:48:09.892412592 -0400 -@@ -22,7 +22,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/mips/include/asm/page.h linux-2.6.30.4/arch/mips/include/asm/page.h ---- linux-2.6.30.4/arch/mips/include/asm/page.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/include/asm/page.h 2009-07-30 09:48:09.892412592 -0400 -@@ -85,7 +85,7 @@ extern void copy_user_highpage(struct pa - #ifdef CONFIG_CPU_MIPS32 - typedef struct { unsigned long pte_low, pte_high; } pte_t; - #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) -- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) -+ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; }) - #else - typedef struct { unsigned long long pte; } pte_t; - #define pte_val(x) ((x).pte) -diff -urNp linux-2.6.30.4/arch/mips/include/asm/system.h linux-2.6.30.4/arch/mips/include/asm/system.h ---- linux-2.6.30.4/arch/mips/include/asm/system.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/include/asm/system.h 2009-07-30 09:48:09.892412592 -0400 -@@ -217,6 +217,6 @@ extern void per_cpu_trap_init(void); - */ - #define __ARCH_WANT_UNLOCKED_CTXSW - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ALMASK) - - #endif /* _ASM_SYSTEM_H */ -diff -urNp linux-2.6.30.4/arch/mips/kernel/binfmt_elfn32.c linux-2.6.30.4/arch/mips/kernel/binfmt_elfn32.c ---- linux-2.6.30.4/arch/mips/kernel/binfmt_elfn32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/kernel/binfmt_elfn32.c 2009-07-30 09:48:09.892412592 -0400 -@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include - #include - #include -diff -urNp linux-2.6.30.4/arch/mips/kernel/binfmt_elfo32.c linux-2.6.30.4/arch/mips/kernel/binfmt_elfo32.c ---- linux-2.6.30.4/arch/mips/kernel/binfmt_elfo32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/kernel/binfmt_elfo32.c 2009-07-30 09:48:09.893444022 -0400 -@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include - #include - #include -diff -urNp linux-2.6.30.4/arch/mips/kernel/process.c linux-2.6.30.4/arch/mips/kernel/process.c ---- linux-2.6.30.4/arch/mips/kernel/process.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/kernel/process.c 2009-07-30 09:48:09.893444022 -0400 -@@ -457,15 +457,3 @@ unsigned long get_wchan(struct task_stru - out: - return pc; - } -- --/* -- * Don't forget that the stack pointer must be aligned on a 8 bytes -- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI. -- */ --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- -- return sp & ALMASK; --} -diff -urNp linux-2.6.30.4/arch/mips/kernel/syscall.c linux-2.6.30.4/arch/mips/kernel/syscall.c ---- linux-2.6.30.4/arch/mips/kernel/syscall.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/kernel/syscall.c 2009-07-30 09:48:09.893444022 -0400 -@@ -99,6 +99,11 @@ unsigned long arch_get_unmapped_area(str - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -109,7 +114,7 @@ unsigned long arch_get_unmapped_area(str - (!vmm || addr + len <= vmm->vm_start)) - return addr; - } -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else -diff -urNp linux-2.6.30.4/arch/mips/mm/fault.c linux-2.6.30.4/arch/mips/mm/fault.c ---- linux-2.6.30.4/arch/mips/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mips/mm/fault.c 2009-07-30 09:48:09.896533953 -0400 -@@ -26,6 +26,23 @@ - #include - #include /* For VMALLOC_END */ - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address, - * and the problem, and then passes it off to one of the appropriate -diff -urNp linux-2.6.30.4/arch/mn10300/include/asm/atomic.h linux-2.6.30.4/arch/mn10300/include/asm/atomic.h ---- linux-2.6.30.4/arch/mn10300/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mn10300/include/asm/atomic.h 2009-07-30 09:48:09.897612189 -0400 -@@ -145,6 +145,10 @@ static inline void atomic_clear_mask(uns - #define atomic_xchg(ptr, v) (xchg(&(ptr)->counter, (v))) - #define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new))) - -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - /* Atomic operations are already serializing on MN10300??? */ - #define smp_mb__before_atomic_dec() barrier() - #define smp_mb__after_atomic_dec() barrier() -diff -urNp linux-2.6.30.4/arch/mn10300/include/asm/kmap_types.h linux-2.6.30.4/arch/mn10300/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/mn10300/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mn10300/include/asm/kmap_types.h 2009-07-30 09:48:09.897612189 -0400 -@@ -25,6 +25,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/mn10300/kernel/setup.c linux-2.6.30.4/arch/mn10300/kernel/setup.c ---- linux-2.6.30.4/arch/mn10300/kernel/setup.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/mn10300/kernel/setup.c 2009-07-30 09:48:09.897612189 -0400 -@@ -285,7 +285,7 @@ static void c_stop(struct seq_file *m, v - { - } - --struct seq_operations cpuinfo_op = { -+const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, -diff -urNp linux-2.6.30.4/arch/parisc/include/asm/atomic.h linux-2.6.30.4/arch/parisc/include/asm/atomic.h ---- linux-2.6.30.4/arch/parisc/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/include/asm/atomic.h 2009-07-30 09:48:09.898625493 -0400 -@@ -223,8 +223,11 @@ static __inline__ int atomic_add_unless( - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - - #define atomic_add(i,v) ((void)(__atomic_add_return( ((int)(i)),(v)))) -+#define atomic_add_unchecked(i,v) atomic_add((i), (v)) - #define atomic_sub(i,v) ((void)(__atomic_add_return(-((int)(i)),(v)))) -+#define atomic_sub_unchecked(i,v) atomic_sub((i), (v)) - #define atomic_inc(v) ((void)(__atomic_add_return( 1,(v)))) -+#define atomic_inc_unchecked(v) atomic_inc(v) - #define atomic_dec(v) ((void)(__atomic_add_return( -1,(v)))) - - #define atomic_add_return(i,v) (__atomic_add_return( ((int)(i)),(v))) -diff -urNp linux-2.6.30.4/arch/parisc/include/asm/elf.h linux-2.6.30.4/arch/parisc/include/asm/elf.h ---- linux-2.6.30.4/arch/parisc/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/include/asm/elf.h 2009-07-30 09:48:09.898625493 -0400 -@@ -343,6 +343,13 @@ struct pt_regs; /* forward declaration.. - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, - but it's not easy, and we've already done it here. */ -diff -urNp linux-2.6.30.4/arch/parisc/include/asm/kmap_types.h linux-2.6.30.4/arch/parisc/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/parisc/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/include/asm/kmap_types.h 2009-07-30 09:48:09.898625493 -0400 -@@ -22,7 +22,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/parisc/include/asm/pgtable.h linux-2.6.30.4/arch/parisc/include/asm/pgtable.h ---- linux-2.6.30.4/arch/parisc/include/asm/pgtable.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/include/asm/pgtable.h 2009-07-30 09:48:09.898625493 -0400 -@@ -207,6 +207,17 @@ - #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED) - #define PAGE_COPY PAGE_EXECREAD - #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_KERNEL) - #define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL & ~_PAGE_WRITE) - #define PAGE_KERNEL_UNC __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE) -diff -urNp linux-2.6.30.4/arch/parisc/kernel/module.c linux-2.6.30.4/arch/parisc/kernel/module.c ---- linux-2.6.30.4/arch/parisc/kernel/module.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/kernel/module.c 2009-07-30 09:48:09.899565255 -0400 -@@ -91,16 +91,38 @@ - - /* three functions to determine where in the module core - * or init pieces the location is */ -+static inline int in_init_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rx && -+ loc < (me->module_init_rx + me->init_size_rx)); -+} -+ -+static inline int in_init_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rw && -+ loc < (me->module_init_rw + me->init_size_rw)); -+} -+ - static inline int in_init(struct module *me, void *loc) - { -- return (loc >= me->module_init && -- loc <= (me->module_init + me->init_size)); -+ return in_init_rx(me, loc) || in_init_rw(me, loc); -+} -+ -+static inline int in_core_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rx && -+ loc < (me->module_core_rx + me->core_size_rx)); -+} -+ -+static inline int in_core_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rw && -+ loc < (me->module_core_rw + me->core_size_rw)); - } - - static inline int in_core(struct module *me, void *loc) - { -- return (loc >= me->module_core && -- loc <= (me->module_core + me->core_size)); -+ return in_core_rx(me, loc) || in_core_rw(me, loc); - } - - static inline int in_local(struct module *me, void *loc) -@@ -334,13 +356,13 @@ int module_frob_arch_sections(CONST Elf_ - } - - /* align things a bit */ -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.got_offset = me->core_size; -- me->core_size += gots * sizeof(struct got_entry); -- -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.fdesc_offset = me->core_size; -- me->core_size += fdescs * sizeof(Elf_Fdesc); -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += gots * sizeof(struct got_entry); -+ -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.fdesc_offset = me->core_size_rw; -+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc); - - me->arch.got_max = gots; - me->arch.fdesc_max = fdescs; -@@ -358,7 +380,7 @@ static Elf64_Word get_got(struct module - - BUG_ON(value == 0); - -- got = me->module_core + me->arch.got_offset; -+ got = me->module_core_rw + me->arch.got_offset; - for (i = 0; got[i].addr; i++) - if (got[i].addr == value) - goto out; -@@ -376,7 +398,7 @@ static Elf64_Word get_got(struct module - #ifdef CONFIG_64BIT - static Elf_Addr get_fdesc(struct module *me, unsigned long value) - { -- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset; -+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset; - - if (!value) { - printk(KERN_ERR "%s: zero OPD requested!\n", me->name); -@@ -394,7 +416,7 @@ static Elf_Addr get_fdesc(struct module - - /* Create new one */ - fdesc->addr = value; -- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - return (Elf_Addr)fdesc; - } - #endif /* CONFIG_64BIT */ -@@ -810,7 +832,7 @@ register_unwind_table(struct module *me, - - table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr; - end = table + sechdrs[me->arch.unwind_section].sh_size; -- gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - - DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", - me->arch.unwind_section, table, end, gp); -diff -urNp linux-2.6.30.4/arch/parisc/kernel/sys_parisc.c linux-2.6.30.4/arch/parisc/kernel/sys_parisc.c ---- linux-2.6.30.4/arch/parisc/kernel/sys_parisc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/kernel/sys_parisc.c 2009-07-30 09:48:09.899565255 -0400 -@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(str - if (flags & MAP_FIXED) - return addr; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (filp) { - addr = get_shared_area(filp->f_mapping, addr, len, pgoff); -diff -urNp linux-2.6.30.4/arch/parisc/kernel/traps.c linux-2.6.30.4/arch/parisc/kernel/traps.c ---- linux-2.6.30.4/arch/parisc/kernel/traps.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/kernel/traps.c 2009-07-30 09:48:09.900676754 -0400 -@@ -734,9 +734,7 @@ void notrace handle_interruption(int cod - - down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm,regs->iaoq[0]); -- if (vma && (regs->iaoq[0] >= vma->vm_start) -- && (vma->vm_flags & VM_EXEC)) { -- -+ if (vma && (regs->iaoq[0] >= vma->vm_start)) { - fault_address = regs->iaoq[0]; - fault_space = regs->iasq[0]; - -diff -urNp linux-2.6.30.4/arch/parisc/mm/fault.c linux-2.6.30.4/arch/parisc/mm/fault.c ---- linux-2.6.30.4/arch/parisc/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/parisc/mm/fault.c 2009-07-30 09:48:09.900676754 -0400 -@@ -16,6 +16,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -53,7 +54,7 @@ DEFINE_PER_CPU(struct exception_data, ex - static unsigned long - parisc_acctyp(unsigned long code, unsigned int inst) - { -- if (code == 6 || code == 16) -+ if (code == 6 || code == 7 || code == 16) - return VM_EXEC; - - switch (inst & 0xf0000000) { -@@ -139,6 +140,116 @@ parisc_acctyp(unsigned long code, unsign - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when rt_sigreturn trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int bl, depwi; -+ -+ err = get_user(bl, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4)); -+ -+ if (err) -+ break; -+ -+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) { -+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12; -+ -+ err = get_user(ldw, (unsigned int *)addr); -+ err |= get_user(bv, (unsigned int *)(addr+4)); -+ err |= get_user(ldw2, (unsigned int *)(addr+8)); -+ -+ if (err) -+ break; -+ -+ if (ldw == 0x0E801096U && -+ bv == 0xEAC0C000U && -+ ldw2 == 0x0E881095U) -+ { -+ unsigned int resolver, map; -+ -+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12)); -+ if (err) -+ break; -+ -+ regs->gr[20] = instruction_pointer(regs)+8; -+ regs->gr[21] = map; -+ regs->gr[22] = resolver; -+ regs->iaoq[0] = resolver | 3UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ -+#ifndef CONFIG_PAX_EMUSIGRT -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+#endif -+ -+ do { /* PaX: rt_sigreturn emulation */ -+ unsigned int ldi1, ldi2, bel, nop; -+ -+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4)); -+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12)); -+ -+ if (err) -+ break; -+ -+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) && -+ ldi2 == 0x3414015AU && -+ bel == 0xE4008200U && -+ nop == 0x08000240U) -+ { -+ regs->gr[25] = (ldi1 & 2) >> 1; -+ regs->gr[20] = __NR_rt_sigreturn; -+ regs->gr[31] = regs->iaoq[1] + 16; -+ regs->sr[0] = regs->iasq[1]; -+ regs->iaoq[0] = 0x100UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ regs->iasq[0] = regs->sr[2]; -+ regs->iasq[1] = regs->sr[2]; -+ return 2; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - int fixup_exception(struct pt_regs *regs) - { - const struct exception_table_entry *fix; -@@ -193,8 +304,33 @@ good_area: - - acc_type = parisc_acctyp(code,regs->iir); - -- if ((vma->vm_flags & acc_type) != acc_type) -+ if ((vma->vm_flags & acc_type) != acc_type) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) && -+ (address & ~3UL) == instruction_pointer(regs)) -+ { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 3: -+ return; -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ case 2: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; -+ } - - /* - * If for any reason at all we couldn't handle the fault, make -diff -urNp linux-2.6.30.4/arch/powerpc/include/asm/atomic.h linux-2.6.30.4/arch/powerpc/include/asm/atomic.h ---- linux-2.6.30.4/arch/powerpc/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/include/asm/atomic.h 2009-07-30 09:48:09.900676754 -0400 -@@ -244,6 +244,10 @@ static __inline__ int atomic_dec_if_posi - return t; - } - -+#define atomic_inc_unchecked(v) atomic_inc((v)) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) -+ - #define smp_mb__before_atomic_dec() smp_mb() - #define smp_mb__after_atomic_dec() smp_mb() - #define smp_mb__before_atomic_inc() smp_mb() -diff -urNp linux-2.6.30.4/arch/powerpc/include/asm/elf.h linux-2.6.30.4/arch/powerpc/include/asm/elf.h ---- linux-2.6.30.4/arch/powerpc/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/include/asm/elf.h 2009-07-30 09:48:09.901536944 -0400 -@@ -179,8 +179,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --extern unsigned long randomize_et_dyn(unsigned long base); --#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000)) -+#define ELF_ET_DYN_BASE (0x20000000) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (0x10000000UL) -+ -+#ifdef __powerpc64__ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28) -+#else -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif -+#endif - - /* - * Our registers are always unsigned longs, whether we're a 32 bit -diff -urNp linux-2.6.30.4/arch/powerpc/include/asm/kmap_types.h linux-2.6.30.4/arch/powerpc/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/powerpc/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/include/asm/kmap_types.h 2009-07-30 09:48:09.901536944 -0400 -@@ -26,6 +26,7 @@ enum km_type { - KM_SOFTIRQ1, - KM_PPC_SYNC_PAGE, - KM_PPC_SYNC_ICACHE, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/powerpc/include/asm/page_64.h linux-2.6.30.4/arch/powerpc/include/asm/page_64.h ---- linux-2.6.30.4/arch/powerpc/include/asm/page_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/include/asm/page_64.h 2009-07-30 09:48:09.902599231 -0400 -@@ -170,15 +170,18 @@ do { \ - * stack by default, so in the absense of a PT_GNU_STACK program header - * we turn execute permission off. - */ --#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_STACK_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -+#ifndef CONFIG_PAX_PAGEEXEC - #define VM_STACK_DEFAULT_FLAGS \ - (test_thread_flag(TIF_32BIT) ? \ - VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64) -+#endif - - #include - -diff -urNp linux-2.6.30.4/arch/powerpc/include/asm/page.h linux-2.6.30.4/arch/powerpc/include/asm/page.h ---- linux-2.6.30.4/arch/powerpc/include/asm/page.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/include/asm/page.h 2009-07-30 09:48:09.902599231 -0400 -@@ -116,8 +116,9 @@ extern phys_addr_t kernstart_addr; - * and needs to be executable. This means the whole heap ends - * up being executable. - */ --#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_DATA_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -diff -urNp linux-2.6.30.4/arch/powerpc/include/asm/uaccess.h linux-2.6.30.4/arch/powerpc/include/asm/uaccess.h ---- linux-2.6.30.4/arch/powerpc/include/asm/uaccess.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/include/asm/uaccess.h 2009-07-30 11:10:48.774534063 -0400 -@@ -334,6 +334,9 @@ static inline unsigned long copy_from_us - { - unsigned long over; - -+ if (((long)n < 0) || (n > INT_MAX)) -+ return n; -+ - if (access_ok(VERIFY_READ, from, n)) - return __copy_tofrom_user((__force void __user *)to, from, n); - if ((unsigned long)from < TASK_SIZE) { -@@ -349,6 +352,9 @@ static inline unsigned long copy_to_user - { - unsigned long over; - -+ if (((long)n < 0) || (n > INT_MAX)) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - return __copy_tofrom_user(to, (__force void __user *)from, n); - if ((unsigned long)to < TASK_SIZE) { -diff -urNp linux-2.6.30.4/arch/powerpc/kernel/module_32.c linux-2.6.30.4/arch/powerpc/kernel/module_32.c ---- linux-2.6.30.4/arch/powerpc/kernel/module_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kernel/module_32.c 2009-07-30 09:48:09.903567873 -0400 -@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr - me->arch.core_plt_section = i; - } - if (!me->arch.core_plt_section || !me->arch.init_plt_section) { -- printk("Module doesn't contain .plt or .init.plt sections.\n"); -+ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name); - return -ENOEXEC; - } - -@@ -203,11 +203,16 @@ static uint32_t do_plt_call(void *locati - - DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location); - /* Init, or core PLT? */ -- if (location >= mod->module_core -- && location < mod->module_core + mod->core_size) -+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) || -+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw)) - entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr; -- else -+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) || -+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw)) - entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr; -+ else { -+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name); -+ return ~0UL; -+ } - - /* Find this entry, or if that fails, the next avail. entry */ - while (entry->jump[0]) { -diff -urNp linux-2.6.30.4/arch/powerpc/kernel/process.c linux-2.6.30.4/arch/powerpc/kernel/process.c ---- linux-2.6.30.4/arch/powerpc/kernel/process.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kernel/process.c 2009-07-30 09:48:09.903567873 -0400 -@@ -1147,36 +1147,3 @@ unsigned long arch_align_stack(unsigned - sp -= get_random_int() & ~PAGE_MASK; - return sp & ~0xf; - } -- --static inline unsigned long brk_rnd(void) --{ -- unsigned long rnd = 0; -- -- /* 8MB for 32bit, 1GB for 64bit */ -- if (is_32bit_task()) -- rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT))); -- else -- rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT))); -- -- return rnd << PAGE_SHIFT; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- -- return ret; --} -- --unsigned long randomize_et_dyn(unsigned long base) --{ -- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < base) -- return base; -- -- return ret; --} -diff -urNp linux-2.6.30.4/arch/powerpc/kernel/setup-common.c linux-2.6.30.4/arch/powerpc/kernel/setup-common.c ---- linux-2.6.30.4/arch/powerpc/kernel/setup-common.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kernel/setup-common.c 2009-07-30 09:48:09.903567873 -0400 -@@ -328,7 +328,7 @@ static void c_stop(struct seq_file *m, v - { - } - --struct seq_operations cpuinfo_op = { -+const struct seq_operations cpuinfo_op = { - .start =c_start, - .next = c_next, - .stop = c_stop, -diff -urNp linux-2.6.30.4/arch/powerpc/kernel/signal_32.c linux-2.6.30.4/arch/powerpc/kernel/signal_32.c ---- linux-2.6.30.4/arch/powerpc/kernel/signal_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kernel/signal_32.c 2009-07-30 09:48:09.903567873 -0400 -@@ -857,7 +857,7 @@ int handle_rt_signal32(unsigned long sig - /* Save user registers on the stack */ - frame = &rt_sf->uc.uc_mcontext; - addr = frame; -- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - if (save_user_regs(regs, frame, 0, 1)) - goto badframe; - regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp; -diff -urNp linux-2.6.30.4/arch/powerpc/kernel/signal_64.c linux-2.6.30.4/arch/powerpc/kernel/signal_64.c ---- linux-2.6.30.4/arch/powerpc/kernel/signal_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kernel/signal_64.c 2009-07-30 09:48:09.905069777 -0400 -@@ -429,7 +429,7 @@ int handle_rt_signal64(int signr, struct - current->thread.fpscr.val = 0; - - /* Set up to return from userspace. */ -- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp; - } else { - err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]); -diff -urNp linux-2.6.30.4/arch/powerpc/kernel/vdso.c linux-2.6.30.4/arch/powerpc/kernel/vdso.c ---- linux-2.6.30.4/arch/powerpc/kernel/vdso.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kernel/vdso.c 2009-07-30 09:48:09.905069777 -0400 -@@ -211,7 +211,7 @@ int arch_setup_additional_pages(struct l - vdso_base = VDSO32_MBASE; - #endif - -- current->mm->context.vdso_base = 0; -+ current->mm->context.vdso_base = ~0UL; - - /* vDSO has a problem and was disabled, just don't "enable" it for the - * process -@@ -228,7 +228,7 @@ int arch_setup_additional_pages(struct l - */ - down_write(&mm->mmap_sem); - vdso_base = get_unmapped_area(NULL, vdso_base, -- vdso_pages << PAGE_SHIFT, 0, 0); -+ vdso_pages << PAGE_SHIFT, 0, MAP_PRIVATE | MAP_EXECUTABLE); - if (IS_ERR_VALUE(vdso_base)) { - rc = vdso_base; - goto fail_mmapsem; -diff -urNp linux-2.6.30.4/arch/powerpc/kvm/timing.c linux-2.6.30.4/arch/powerpc/kvm/timing.c ---- linux-2.6.30.4/arch/powerpc/kvm/timing.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/kvm/timing.c 2009-07-30 09:48:09.905069777 -0400 -@@ -201,7 +201,7 @@ static int kvmppc_exit_timing_open(struc - return single_open(file, kvmppc_exit_timing_show, inode->i_private); - } - --static struct file_operations kvmppc_exit_timing_fops = { -+static const struct file_operations kvmppc_exit_timing_fops = { - .owner = THIS_MODULE, - .open = kvmppc_exit_timing_open, - .read = seq_read, -diff -urNp linux-2.6.30.4/arch/powerpc/lib/usercopy_64.c linux-2.6.30.4/arch/powerpc/lib/usercopy_64.c ---- linux-2.6.30.4/arch/powerpc/lib/usercopy_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/lib/usercopy_64.c 2009-07-30 11:10:48.798471204 -0400 -@@ -11,6 +11,9 @@ - - unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if (unlikely(((long)n < 0) || (n > INT_MAX))) -+ return n; -+ - if (likely(access_ok(VERIFY_READ, from, n))) - n = __copy_from_user(to, from, n); - else -@@ -20,6 +23,9 @@ unsigned long copy_from_user(void *to, c - - unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if (unlikely(((long)n < 0) || (n > INT_MAX))) -+ return n; -+ - if (likely(access_ok(VERIFY_WRITE, to, n))) - n = __copy_to_user(to, from, n); - return n; -diff -urNp linux-2.6.30.4/arch/powerpc/mm/fault.c linux-2.6.30.4/arch/powerpc/mm/fault.c ---- linux-2.6.30.4/arch/powerpc/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/mm/fault.c 2009-07-30 09:48:09.905534132 -0400 -@@ -29,6 +29,10 @@ - #include - #include - #include -+#include -+#include -+#include -+#include - - #include - #include -@@ -63,6 +67,363 @@ static inline int notify_page_fault(stru - } - #endif - -+#ifdef CONFIG_PAX_EMUSIGRT -+void pax_syscall_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_syscall = 0UL; -+} -+ -+static int pax_syscall_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x44000002U; /* sc */ -+ __flush_dcache_icache(kaddr); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_syscall_close, -+ .fault = pax_syscall_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->nip = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched GOT trampoline was detected -+ * 3 when patched PLT trampoline was detected -+ * 4 when unpatched PLT trampoline was detected -+ * 5 when sigreturn trampoline was detected -+ * 6 when rt_sigreturn trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#if defined(CONFIG_PAX_EMUPLT) || defined(CONFIG_PAX_EMUSIGRT) -+ int err; -+#endif -+ -+#ifdef CONFIG_PAX_EMUPLT -+ do { /* PaX: patched GOT emulation */ -+ unsigned int blrl; -+ -+ err = get_user(blrl, (unsigned int *)regs->nip); -+ -+ if (!err && blrl == 0x4E800021U) { -+ unsigned long temp = regs->nip; -+ -+ regs->nip = regs->link & 0xFFFFFFFCUL; -+ regs->link = temp + 4UL; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int b; -+ -+ err = get_user(b, (unsigned int *)regs->nip); -+ -+ if (!err && (b & 0xFC000003U) == 0x48000000U) { -+ regs->nip += (((b | 0xFC000000UL) ^ 0x02000000UL) + 0x02000000UL); -+ return 3; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation #1 */ -+ unsigned int li, b; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(b, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) { -+ unsigned int rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr; -+ unsigned long addr = b | 0xFC000000UL; -+ -+ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL); -+ err = get_user(rlwinm, (unsigned int *)addr); -+ err |= get_user(add, (unsigned int *)(addr+4)); -+ err |= get_user(li2, (unsigned int *)(addr+8)); -+ err |= get_user(addis2, (unsigned int *)(addr+12)); -+ err |= get_user(mtctr, (unsigned int *)(addr+16)); -+ err |= get_user(li3, (unsigned int *)(addr+20)); -+ err |= get_user(addis3, (unsigned int *)(addr+24)); -+ err |= get_user(bctr, (unsigned int *)(addr+28)); -+ -+ if (err) -+ break; -+ -+ if (rlwinm == 0x556C083CU && -+ add == 0x7D6C5A14U && -+ (li2 & 0xFFFF0000U) == 0x39800000U && -+ (addis2 & 0xFFFF0000U) == 0x3D8C0000U && -+ mtctr == 0x7D8903A6U && -+ (li3 & 0xFFFF0000U) == 0x39800000U && -+ (addis3 & 0xFFFF0000U) == 0x3D8C0000U && -+ bctr == 0x4E800420U) -+ { -+ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16; -+ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->ctr += (addis2 & 0xFFFFU) << 16; -+ regs->nip = regs->ctr; -+ return 4; -+ } -+ } -+ } while (0); -+ -+#if 0 -+ do { /* PaX: unpatched PLT emulation #2 */ -+ unsigned int lis, lwzu, b, bctr; -+ -+ err = get_user(lis, (unsigned int *)regs->nip); -+ err |= get_user(lwzu, (unsigned int *)(regs->nip+4)); -+ err |= get_user(b, (unsigned int *)(regs->nip+8)); -+ err |= get_user(bctr, (unsigned int *)(regs->nip+12)); -+ -+ if (err) -+ break; -+ -+ if ((lis & 0xFFFF0000U) == 0x39600000U && -+ (lwzu & 0xU) == 0xU && -+ (b & 0xFC000003U) == 0x48000000U && -+ bctr == 0x4E800420U) -+ { -+ unsigned int addis, addi, rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr; -+ unsigned long addr = b | 0xFC000000UL; -+ -+ addr = regs->nip + 12 + ((addr ^ 0x02000000UL) + 0x02000000UL); -+ err = get_user(addis, (unsigned int *)addr); -+ err |= get_user(addi, (unsigned int *)(addr+4)); -+ err |= get_user(rlwinm, (unsigned int *)(addr+8)); -+ err |= get_user(add, (unsigned int *)(addr+12)); -+ err |= get_user(li2, (unsigned int *)(addr+16)); -+ err |= get_user(addis2, (unsigned int *)(addr+20)); -+ err |= get_user(mtctr, (unsigned int *)(addr+24)); -+ err |= get_user(li3, (unsigned int *)(addr+28)); -+ err |= get_user(addis3, (unsigned int *)(addr+32)); -+ err |= get_user(bctr, (unsigned int *)(addr+36)); -+ -+ if (err) -+ break; -+ -+ if ((addis & 0xFFFF0000U) == 0x3D6B0000U && -+ (addi & 0xFFFF0000U) == 0x396B0000U && -+ rlwinm == 0x556C083CU && -+ add == 0x7D6C5A14U && -+ (li2 & 0xFFFF0000U) == 0x39800000U && -+ (addis2 & 0xFFFF0000U) == 0x3D8C0000U && -+ mtctr == 0x7D8903A6U && -+ (li3 & 0xFFFF0000U) == 0x39800000U && -+ (addis3 & 0xFFFF0000U) == 0x3D8C0000U && -+ bctr == 0x4E800420U) -+ { -+ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16; -+ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->ctr += (addis2 & 0xFFFFU) << 16; -+ regs->nip = regs->ctr; -+ return 4; -+ } -+ } -+ } while (0); -+#endif -+ -+ do { /* PaX: unpatched PLT emulation #3 */ -+ unsigned int li, b; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(b, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) { -+ unsigned int addis, lwz, mtctr, bctr; -+ unsigned long addr = b | 0xFC000000UL; -+ -+ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL); -+ err = get_user(addis, (unsigned int *)addr); -+ err |= get_user(lwz, (unsigned int *)(addr+4)); -+ err |= get_user(mtctr, (unsigned int *)(addr+8)); -+ err |= get_user(bctr, (unsigned int *)(addr+12)); -+ -+ if (err) -+ break; -+ -+ if ((addis & 0xFFFF0000U) == 0x3D6B0000U && -+ (lwz & 0xFFFF0000U) == 0x816B0000U && -+ mtctr == 0x7D6903A6U && -+ bctr == 0x4E800420U) -+ { -+ unsigned int r11; -+ -+ addr = (addis << 16) + (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ addr += (((lwz | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ -+ err = get_user(r11, (unsigned int *)addr); -+ if (err) -+ break; -+ -+ regs->gpr[PT_R11] = r11; -+ regs->ctr = r11; -+ regs->nip = r11; -+ return 4; -+ } -+ } -+ } while (0); -+#endif -+ -+#ifdef CONFIG_PAX_EMUSIGRT -+ do { /* PaX: sigreturn emulation */ -+ unsigned int li, sc; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(sc, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && li == 0x38000000U + __NR_sigreturn && sc == 0x44000002U) { -+ struct vm_area_struct *vma; -+ unsigned long call_syscall; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_syscall = current->mm->call_syscall; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_syscall)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_syscall) { -+ call_syscall = current->mm->call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_syscall & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_syscall)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_syscall = call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->gpr[PT_R0] = __NR_sigreturn; -+ regs->nip = call_syscall; -+ return 5; -+ } -+ } while (0); -+ -+ do { /* PaX: rt_sigreturn emulation */ -+ unsigned int li, sc; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(sc, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && li == 0x38000000U + __NR_rt_sigreturn && sc == 0x44000002U) { -+ struct vm_area_struct *vma; -+ unsigned int call_syscall; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_syscall = current->mm->call_syscall; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_syscall)) -+ goto rt_emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_syscall) { -+ call_syscall = current->mm->call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto rt_emulate; -+ } -+ -+ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_syscall & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_syscall)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_syscall = call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ -+rt_emulate: -+ regs->gpr[PT_R0] = __NR_rt_sigreturn; -+ regs->nip = call_syscall; -+ return 6; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * Check whether the instruction at regs->nip is a store using - * an update addressing form which will update r1. -@@ -133,7 +494,7 @@ int __kprobes do_page_fault(struct pt_re - * indicate errors in DSISR but can validly be set in SRR1. - */ - if (trap == 0x400) -- error_code &= 0x48200000; -+ error_code &= 0x58200000; - else - is_write = error_code & DSISR_ISSTORE; - #else -@@ -327,6 +688,37 @@ bad_area: - bad_area_nosemaphore: - /* User mode accesses cause a SIGSEGV */ - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+#ifdef CONFIG_PPC64 -+ if (is_exec && (error_code & DSISR_PROTFAULT)) { -+#else -+ if (is_exec && regs->nip == address) { -+#endif -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ case 4: -+ return 0; -+#endif -+ -+#ifdef CONFIG_PAX_EMUSIGRT -+ case 5: -+ case 6: -+ return 0; -+#endif -+ -+ } -+ -+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - _exception(SIGSEGV, regs, code, address); - return 0; - } -diff -urNp linux-2.6.30.4/arch/powerpc/mm/mmap_64.c linux-2.6.30.4/arch/powerpc/mm/mmap_64.c ---- linux-2.6.30.4/arch/powerpc/mm/mmap_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/mm/mmap_64.c 2009-07-30 09:48:09.905534132 -0400 -@@ -99,10 +99,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-2.6.30.4/arch/powerpc/platforms/cell/spufs/file.c linux-2.6.30.4/arch/powerpc/platforms/cell/spufs/file.c ---- linux-2.6.30.4/arch/powerpc/platforms/cell/spufs/file.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/platforms/cell/spufs/file.c 2009-07-30 09:48:09.906622773 -0400 -@@ -147,7 +147,7 @@ static int __fops ## _open(struct inode - __simple_attr_check_format(__fmt, 0ull); \ - return spufs_attr_open(inode, file, __get, __set, __fmt); \ - } \ --static struct file_operations __fops = { \ -+static const struct file_operations __fops = { \ - .owner = THIS_MODULE, \ - .open = __fops ## _open, \ - .release = spufs_attr_release, \ -@@ -309,7 +309,7 @@ static int spufs_mem_mmap_access(struct - return len; - } - --static struct vm_operations_struct spufs_mem_mmap_vmops = { -+static const struct vm_operations_struct spufs_mem_mmap_vmops = { - .fault = spufs_mem_mmap_fault, - .access = spufs_mem_mmap_access, - }; -@@ -436,7 +436,7 @@ static int spufs_cntl_mmap_fault(struct - return spufs_ps_fault(vma, vmf, 0x4000, SPUFS_CNTL_MAP_SIZE); - } - --static struct vm_operations_struct spufs_cntl_mmap_vmops = { -+static const struct vm_operations_struct spufs_cntl_mmap_vmops = { - .fault = spufs_cntl_mmap_fault, - }; - -@@ -1143,7 +1143,7 @@ spufs_signal1_mmap_fault(struct vm_area_ - #endif - } - --static struct vm_operations_struct spufs_signal1_mmap_vmops = { -+static const struct vm_operations_struct spufs_signal1_mmap_vmops = { - .fault = spufs_signal1_mmap_fault, - }; - -@@ -1279,7 +1279,7 @@ spufs_signal2_mmap_fault(struct vm_area_ - #endif - } - --static struct vm_operations_struct spufs_signal2_mmap_vmops = { -+static const struct vm_operations_struct spufs_signal2_mmap_vmops = { - .fault = spufs_signal2_mmap_fault, - }; - -@@ -1397,7 +1397,7 @@ spufs_mss_mmap_fault(struct vm_area_stru - return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_MSS_MAP_SIZE); - } - --static struct vm_operations_struct spufs_mss_mmap_vmops = { -+static const struct vm_operations_struct spufs_mss_mmap_vmops = { - .fault = spufs_mss_mmap_fault, - }; - -@@ -1458,7 +1458,7 @@ spufs_psmap_mmap_fault(struct vm_area_st - return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_PS_MAP_SIZE); - } - --static struct vm_operations_struct spufs_psmap_mmap_vmops = { -+static const struct vm_operations_struct spufs_psmap_mmap_vmops = { - .fault = spufs_psmap_mmap_fault, - }; - -@@ -1517,7 +1517,7 @@ spufs_mfc_mmap_fault(struct vm_area_stru - return spufs_ps_fault(vma, vmf, 0x3000, SPUFS_MFC_MAP_SIZE); - } - --static struct vm_operations_struct spufs_mfc_mmap_vmops = { -+static const struct vm_operations_struct spufs_mfc_mmap_vmops = { - .fault = spufs_mfc_mmap_fault, - }; - -diff -urNp linux-2.6.30.4/arch/powerpc/platforms/pseries/dtl.c linux-2.6.30.4/arch/powerpc/platforms/pseries/dtl.c ---- linux-2.6.30.4/arch/powerpc/platforms/pseries/dtl.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/platforms/pseries/dtl.c 2009-07-30 12:06:52.084821916 -0400 -@@ -209,7 +209,7 @@ static ssize_t dtl_file_read(struct file - return n_read * sizeof(struct dtl_entry); - } - --static struct file_operations dtl_fops = { -+static const struct file_operations dtl_fops = { - .open = dtl_file_open, - .release = dtl_file_release, - .read = dtl_file_read, -diff -urNp linux-2.6.30.4/arch/powerpc/platforms/pseries/hvCall_inst.c linux-2.6.30.4/arch/powerpc/platforms/pseries/hvCall_inst.c ---- linux-2.6.30.4/arch/powerpc/platforms/pseries/hvCall_inst.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/powerpc/platforms/pseries/hvCall_inst.c 2009-07-30 09:48:09.906622773 -0400 -@@ -71,7 +71,7 @@ static int hc_show(struct seq_file *m, v - return 0; - } - --static struct seq_operations hcall_inst_seq_ops = { -+static const struct seq_operations hcall_inst_seq_ops = { - .start = hc_start, - .next = hc_next, - .stop = hc_stop, -diff -urNp linux-2.6.30.4/arch/s390/hypfs/inode.c linux-2.6.30.4/arch/s390/hypfs/inode.c ---- linux-2.6.30.4/arch/s390/hypfs/inode.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/s390/hypfs/inode.c 2009-07-30 09:48:09.907613298 -0400 -@@ -41,7 +41,7 @@ struct hypfs_sb_info { - - static const struct file_operations hypfs_file_ops; - static struct file_system_type hypfs_type; --static struct super_operations hypfs_s_ops; -+static const struct super_operations hypfs_s_ops; - - /* start of list of all dentries, which have to be deleted on update */ - static struct dentry *hypfs_last_dentry; -@@ -476,7 +476,7 @@ static struct file_system_type hypfs_typ - .kill_sb = hypfs_kill_super - }; - --static struct super_operations hypfs_s_ops = { -+static const struct super_operations hypfs_s_ops = { - .statfs = simple_statfs, - .drop_inode = hypfs_drop_inode, - .show_options = hypfs_show_options, -diff -urNp linux-2.6.30.4/arch/s390/include/asm/atomic.h linux-2.6.30.4/arch/s390/include/asm/atomic.h ---- linux-2.6.30.4/arch/s390/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/s390/include/asm/atomic.h 2009-07-30 09:48:09.908552392 -0400 -@@ -82,8 +82,10 @@ static __inline__ int atomic_add_return( - return __CS_LOOP(v, i, "ar"); - } - #define atomic_add(_i, _v) atomic_add_return(_i, _v) -+#define atomic_add_unchecked(_i, _v) atomic_add((_i), (_v)) - #define atomic_add_negative(_i, _v) (atomic_add_return(_i, _v) < 0) - #define atomic_inc(_v) atomic_add_return(1, _v) -+#define atomic_inc_unchecked(_v) atomic_inc(_v) - #define atomic_inc_return(_v) atomic_add_return(1, _v) - #define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0) - -@@ -92,6 +94,7 @@ static __inline__ int atomic_sub_return( - return __CS_LOOP(v, i, "sr"); - } - #define atomic_sub(_i, _v) atomic_sub_return(_i, _v) -+#define atomic_sub_unchecked(_i, _v) atomic_sub((_i), (_v)) - #define atomic_sub_and_test(_i, _v) (atomic_sub_return(_i, _v) == 0) - #define atomic_dec(_v) atomic_sub_return(1, _v) - #define atomic_dec_return(_v) atomic_sub_return(1, _v) -diff -urNp linux-2.6.30.4/arch/s390/include/asm/kmap_types.h linux-2.6.30.4/arch/s390/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/s390/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/s390/include/asm/kmap_types.h 2009-07-30 09:48:09.908552392 -0400 -@@ -16,6 +16,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/s390/include/asm/uaccess.h linux-2.6.30.4/arch/s390/include/asm/uaccess.h ---- linux-2.6.30.4/arch/s390/include/asm/uaccess.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/s390/include/asm/uaccess.h 2009-07-30 09:48:09.908552392 -0400 -@@ -232,6 +232,10 @@ static inline unsigned long __must_check - copy_to_user(void __user *to, const void *from, unsigned long n) - { - might_sleep(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; -@@ -257,6 +261,9 @@ copy_to_user(void __user *to, const void - static inline unsigned long __must_check - __copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n) && (n <= 256)) - return uaccess.copy_from_user_small(n, from, to); - else -@@ -283,6 +290,10 @@ static inline unsigned long __must_check - copy_from_user(void *to, const void __user *from, unsigned long n) - { - might_sleep(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); - else -diff -urNp linux-2.6.30.4/arch/s390/kernel/module.c linux-2.6.30.4/arch/s390/kernel/module.c ---- linux-2.6.30.4/arch/s390/kernel/module.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/s390/kernel/module.c 2009-07-30 09:48:09.908552392 -0400 -@@ -166,11 +166,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, - - /* Increase core size by size of got & plt and set start - offsets for got and plt. */ -- me->core_size = ALIGN(me->core_size, 4); -- me->arch.got_offset = me->core_size; -- me->core_size += me->arch.got_size; -- me->arch.plt_offset = me->core_size; -- me->core_size += me->arch.plt_size; -+ me->core_size_rw = ALIGN(me->core_size_rw, 4); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += me->arch.got_size; -+ me->arch.plt_offset = me->core_size_rx; -+ me->core_size_rx += me->arch.plt_size; - return 0; - } - -@@ -256,7 +256,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - if (info->got_initialized == 0) { - Elf_Addr *gotent; - -- gotent = me->module_core + me->arch.got_offset + -+ gotent = me->module_core_rw + me->arch.got_offset + - info->got_offset; - *gotent = val; - info->got_initialized = 1; -@@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - else if (r_type == R_390_GOTENT || - r_type == R_390_GOTPLTENT) - *(unsigned int *) loc = -- (val + (Elf_Addr) me->module_core - loc) >> 1; -+ (val + (Elf_Addr) me->module_core_rw - loc) >> 1; - else if (r_type == R_390_GOT64 || - r_type == R_390_GOTPLT64) - *(unsigned long *) loc = val; -@@ -294,7 +294,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */ - if (info->plt_initialized == 0) { - unsigned int *ip; -- ip = me->module_core + me->arch.plt_offset + -+ ip = me->module_core_rx + me->arch.plt_offset + - info->plt_offset; - #ifndef CONFIG_64BIT - ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */ -@@ -319,7 +319,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - val - loc + 0xffffUL < 0x1ffffeUL) || - (r_type == R_390_PLT32DBL && - val - loc + 0xffffffffULL < 0x1fffffffeULL))) -- val = (Elf_Addr) me->module_core + -+ val = (Elf_Addr) me->module_core_rx + - me->arch.plt_offset + - info->plt_offset; - val += rela->r_addend - loc; -@@ -341,7 +341,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - case R_390_GOTOFF32: /* 32 bit offset to GOT. */ - case R_390_GOTOFF64: /* 64 bit offset to GOT. */ - val = val + rela->r_addend - -- ((Elf_Addr) me->module_core + me->arch.got_offset); -+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset); - if (r_type == R_390_GOTOFF16) - *(unsigned short *) loc = val; - else if (r_type == R_390_GOTOFF32) -@@ -351,7 +351,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - break; - case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */ - case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */ -- val = (Elf_Addr) me->module_core + me->arch.got_offset + -+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset + - rela->r_addend - loc; - if (r_type == R_390_GOTPC) - *(unsigned int *) loc = val; -diff -urNp linux-2.6.30.4/arch/sh/include/asm/atomic.h linux-2.6.30.4/arch/sh/include/asm/atomic.h ---- linux-2.6.30.4/arch/sh/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sh/include/asm/atomic.h 2009-07-30 09:48:09.909647067 -0400 -@@ -43,6 +43,9 @@ - #define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) - - #define atomic_inc(v) atomic_add(1,(v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i,v) atomic_add((i),(v)) -+#define atomic_sub_unchecked(i,v) atomic_sub((i),(v)) - #define atomic_dec(v) atomic_sub(1,(v)) - - #ifndef CONFIG_GUSA_RB -diff -urNp linux-2.6.30.4/arch/sh/include/asm/kmap_types.h linux-2.6.30.4/arch/sh/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/sh/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sh/include/asm/kmap_types.h 2009-07-30 09:48:09.909647067 -0400 -@@ -24,7 +24,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/atomic_32.h linux-2.6.30.4/arch/sparc/include/asm/atomic_32.h ---- linux-2.6.30.4/arch/sparc/include/asm/atomic_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/atomic_32.h 2009-07-30 09:48:09.910522181 -0400 -@@ -28,8 +28,11 @@ extern void atomic_set(atomic_t *, int); - #define atomic_read(v) ((v)->counter) - - #define atomic_add(i, v) ((void)__atomic_add_return( (int)(i), (v))) -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) - #define atomic_sub(i, v) ((void)__atomic_add_return(-(int)(i), (v))) -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) - #define atomic_inc(v) ((void)__atomic_add_return( 1, (v))) -+#define atomic_inc_unchecked(v) atomic_inc(v) - #define atomic_dec(v) ((void)__atomic_add_return( -1, (v))) - - #define atomic_add_return(i, v) (__atomic_add_return( (int)(i), (v))) -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/atomic_64.h linux-2.6.30.4/arch/sparc/include/asm/atomic_64.h ---- linux-2.6.30.4/arch/sparc/include/asm/atomic_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/atomic_64.h 2009-07-30 09:48:09.910522181 -0400 -@@ -20,8 +20,10 @@ - #define atomic64_set(v, i) (((v)->counter) = i) - - extern void atomic_add(int, atomic_t *); -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) - extern void atomic64_add(int, atomic64_t *); - extern void atomic_sub(int, atomic_t *); -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) - extern void atomic64_sub(int, atomic64_t *); - - extern int atomic_add_ret(int, atomic_t *); -@@ -59,6 +61,7 @@ extern int atomic64_sub_ret(int, atomic6 - #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0) - - #define atomic_inc(v) atomic_add(1, v) -+#define atomic_inc_unchecked(v) atomic_inc(v) - #define atomic64_inc(v) atomic64_add(1, v) - - #define atomic_dec(v) atomic_sub(1, v) -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/elf_32.h linux-2.6.30.4/arch/sparc/include/asm/elf_32.h ---- linux-2.6.30.4/arch/sparc/include/asm/elf_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/elf_32.h 2009-07-30 09:48:09.910522181 -0400 -@@ -116,6 +116,13 @@ typedef struct { - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. This can NOT be done in userspace - on Sparc. */ -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/elf_64.h linux-2.6.30.4/arch/sparc/include/asm/elf_64.h ---- linux-2.6.30.4/arch/sparc/include/asm/elf_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/elf_64.h 2009-07-30 09:48:09.910522181 -0400 -@@ -163,6 +163,12 @@ typedef struct { - #define ELF_ET_DYN_BASE 0x0000010000000000UL - #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28 ) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29 ) -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. */ -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/kmap_types.h linux-2.6.30.4/arch/sparc/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/sparc/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/kmap_types.h 2009-07-30 09:48:09.910522181 -0400 -@@ -19,6 +19,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/pgtable_32.h linux-2.6.30.4/arch/sparc/include/asm/pgtable_32.h ---- linux-2.6.30.4/arch/sparc/include/asm/pgtable_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/pgtable_32.h 2009-07-30 09:48:09.910522181 -0400 -@@ -43,6 +43,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) - BTFIXUPDEF_INT(page_none) - BTFIXUPDEF_INT(page_copy) - BTFIXUPDEF_INT(page_readonly) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+BTFIXUPDEF_INT(page_shared_noexec) -+BTFIXUPDEF_INT(page_copy_noexec) -+BTFIXUPDEF_INT(page_readonly_noexec) -+#endif -+ - BTFIXUPDEF_INT(page_kernel) - - #define PMD_SHIFT SUN4C_PMD_SHIFT -@@ -64,6 +71,16 @@ extern pgprot_t PAGE_SHARED; - #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) - #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) - -+#ifdef CONFIG_PAX_PAGEEXEC -+extern pgprot_t PAGE_SHARED_NOEXEC; -+# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec)) -+# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec)) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - extern unsigned long page_kernel; - - #ifdef MODULE -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/pgtsrmmu.h linux-2.6.30.4/arch/sparc/include/asm/pgtsrmmu.h ---- linux-2.6.30.4/arch/sparc/include/asm/pgtsrmmu.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/pgtsrmmu.h 2009-07-30 09:48:09.911921584 -0400 -@@ -115,6 +115,13 @@ - SRMMU_EXEC | SRMMU_REF) - #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \ - SRMMU_EXEC | SRMMU_REF) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF) -+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#endif -+ - #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \ - SRMMU_DIRTY | SRMMU_REF) - -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/uaccess_32.h linux-2.6.30.4/arch/sparc/include/asm/uaccess_32.h ---- linux-2.6.30.4/arch/sparc/include/asm/uaccess_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/uaccess_32.h 2009-07-30 09:48:09.911921584 -0400 -@@ -246,6 +246,9 @@ extern unsigned long __copy_user(void __ - - static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (n && __access_ok((unsigned long) to, n)) - return __copy_user(to, (__force void __user *) from, n); - else -@@ -259,6 +262,9 @@ static inline unsigned long __copy_to_us - - static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (n && __access_ok((unsigned long) from, n)) - return __copy_user((__force void __user *) to, from, n); - else -@@ -267,6 +273,9 @@ static inline unsigned long copy_from_us - - static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - return __copy_user((__force void __user *) to, from, n); - } - -diff -urNp linux-2.6.30.4/arch/sparc/include/asm/uaccess_64.h linux-2.6.30.4/arch/sparc/include/asm/uaccess_64.h ---- linux-2.6.30.4/arch/sparc/include/asm/uaccess_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/include/asm/uaccess_64.h 2009-07-30 11:10:48.823569054 -0400 -@@ -212,7 +212,12 @@ extern unsigned long copy_from_user_fixu - static inline unsigned long __must_check - copy_from_user(void *to, const void __user *from, unsigned long size) - { -- unsigned long ret = ___copy_from_user(to, from, size); -+ unsigned long ret; -+ -+ if (unlikely(((long)size > INT_MAX) || ((long)size < 0))) -+ return size; -+ -+ ret = ___copy_from_user(to, from, size); - - if (unlikely(ret)) - ret = copy_from_user_fixup(to, from, size); -@@ -228,7 +233,12 @@ extern unsigned long copy_to_user_fixup( - static inline unsigned long __must_check - copy_to_user(void __user *to, const void *from, unsigned long size) - { -- unsigned long ret = ___copy_to_user(to, from, size); -+ unsigned long ret; -+ -+ if (unlikely(((long)size > INT_MAX) || ((long)size < 0))) -+ return size; -+ -+ ret = ___copy_to_user(to, from, size); - - if (unlikely(ret)) - ret = copy_to_user_fixup(to, from, size); -diff -urNp linux-2.6.30.4/arch/sparc/kernel/Makefile linux-2.6.30.4/arch/sparc/kernel/Makefile ---- linux-2.6.30.4/arch/sparc/kernel/Makefile 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/kernel/Makefile 2009-07-30 09:48:09.911921584 -0400 -@@ -3,7 +3,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - extra-y := head_$(BITS).o - extra-y += init_task.o -diff -urNp linux-2.6.30.4/arch/sparc/kernel/sys_sparc_32.c linux-2.6.30.4/arch/sparc/kernel/sys_sparc_32.c ---- linux-2.6.30.4/arch/sparc/kernel/sys_sparc_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/kernel/sys_sparc_32.c 2009-07-30 09:48:09.912653453 -0400 -@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str - if (ARCH_SUN4C && len > 0x20000000) - return -ENOMEM; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (flags & MAP_SHARED) - addr = COLOUR_ALIGN(addr); -diff -urNp linux-2.6.30.4/arch/sparc/kernel/sys_sparc_64.c linux-2.6.30.4/arch/sparc/kernel/sys_sparc_64.c ---- linux-2.6.30.4/arch/sparc/kernel/sys_sparc_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/kernel/sys_sparc_64.c 2009-07-30 09:48:09.912653453 -0400 -@@ -125,7 +125,7 @@ unsigned long arch_get_unmapped_area(str - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -140,6 +140,10 @@ unsigned long arch_get_unmapped_area(str - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -153,9 +157,9 @@ unsigned long arch_get_unmapped_area(str - } - - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -++ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - } - -@@ -175,8 +179,8 @@ full_search: - vma = find_vma(mm, VA_EXCLUDE_END); - } - if (unlikely(task_size < addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -@@ -216,7 +220,7 @@ arch_get_unmapped_area_topdown(struct fi - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -380,6 +384,12 @@ void arch_pick_mmap_layout(struct mm_str - current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY || - sysctl_legacy_va_layout) { - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -@@ -394,6 +404,12 @@ void arch_pick_mmap_layout(struct mm_str - gap = (task_size / 6 * 5); - - mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-2.6.30.4/arch/sparc/Makefile linux-2.6.30.4/arch/sparc/Makefile ---- linux-2.6.30.4/arch/sparc/Makefile 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/Makefile 2009-07-30 11:10:48.852135371 -0400 -@@ -81,7 +81,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc - # Export what is needed by arch/sparc/boot/Makefile - export VMLINUX_INIT VMLINUX_MAIN - VMLINUX_INIT := $(head-y) $(init-y) --VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y) - VMLINUX_MAIN += $(drivers-y) $(net-y) - -diff -urNp linux-2.6.30.4/arch/sparc/mm/fault_32.c linux-2.6.30.4/arch/sparc/mm/fault_32.c ---- linux-2.6.30.4/arch/sparc/mm/fault_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/mm/fault_32.c 2009-07-30 09:48:09.913853340 -0400 -@@ -21,6 +21,9 @@ - #include - #include - #include -+#include -+#include -+#include - - #include - #include -@@ -167,6 +170,249 @@ static unsigned long compute_si_addr(str - return safe_compute_effective_address(regs, insn); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+ -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->pc); -+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned int addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->pc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned int addr; -+ -+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned int addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(ba, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned int addr, save, call; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ else -+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->pc = call_dl_resolve; -+ regs->npc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->pc-4)); -+ err |= get_user(call, (unsigned int *)regs->pc); -+ err |= get_user(nop, (unsigned int *)(regs->pc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2); -+ -+ regs->u_regs[UREG_RETPC] = regs->pc; -+ regs->pc = dl_resolve; -+ regs->npc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, - unsigned long address) - { -@@ -231,6 +477,24 @@ good_area: - if(!(vma->vm_flags & VM_WRITE)) - goto bad_area; - } else { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Allow reads even for write-only mappings */ - if(!(vma->vm_flags & (VM_READ | VM_EXEC))) - goto bad_area; -diff -urNp linux-2.6.30.4/arch/sparc/mm/fault_64.c linux-2.6.30.4/arch/sparc/mm/fault_64.c ---- linux-2.6.30.4/arch/sparc/mm/fault_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/mm/fault_64.c 2009-07-30 09:48:09.913853340 -0400 -@@ -20,6 +20,9 @@ - #include - #include - #include -+#include -+#include -+#include - - #include - #include -@@ -249,6 +252,367 @@ static void noinline bogus_32bit_fault_a - show_regs(regs); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+#ifdef CONFIG_PAX_EMUPLT -+static void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->tpc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->tpc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned long addr; -+ -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #4 */ -+ unsigned int mov1, call, mov2; -+ -+ err = get_user(mov1, (unsigned int *)regs->tpc); -+ err |= get_user(call, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(mov2, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0x8210000FU && -+ (call & 0xC0000000U) == 0x40000000U && -+ mov2 == 0x9E100001U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC]; -+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #5 */ -+ unsigned int sethi1, sethi2, or1, or2, sllx, jmpl, nop; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(or1, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(or2, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+24)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ (or1 & 0xFFFFE000U) == 0x82106000U && -+ (or2 & 0xFFFFE000U) == 0x8A116000U && -+ sllx == 0x83287020 && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #6 */ -+ unsigned int sethi1, sethi2, sllx, or, jmpl, nop; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(or, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+20)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ sllx == 0x83287020 && -+ (or & 0xFFFFE000U) == 0x8A116000U && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #7 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (ba & 0xFFF00000U) == 0x30600000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ unsigned int save, call; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ else -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->tpc = call_dl_resolve; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->tpc-4)); -+ err |= get_user(call, (unsigned int *)regs->tpc); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ -+ regs->u_regs[UREG_RETPC] = regs->tpc; -+ regs->tpc = dl_resolve; -+ regs->tnpc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) - { - struct mm_struct *mm = current->mm; -@@ -315,6 +679,29 @@ asmlinkage void __kprobes do_sparc64_fau - if (!vma) - goto bad_area; - -+#ifdef CONFIG_PAX_PAGEEXEC -+ /* PaX: detect ITLB misses on non-exec pages */ -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address && -+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB)) -+ { -+ if (address != regs->tpc) -+ goto good_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS)); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Pure DTLB misses do not tell us whether the fault causing - * load/store/atomic was a write or not, it only says that there - * was no match. So in such a case we (carefully) read the -diff -urNp linux-2.6.30.4/arch/sparc/mm/init_32.c linux-2.6.30.4/arch/sparc/mm/init_32.c ---- linux-2.6.30.4/arch/sparc/mm/init_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/mm/init_32.c 2009-07-30 09:48:09.914627627 -0400 -@@ -316,6 +316,9 @@ extern void device_scan(void); - pgprot_t PAGE_SHARED __read_mostly; - EXPORT_SYMBOL(PAGE_SHARED); - -+pgprot_t PAGE_SHARED_NOEXEC __read_mostly; -+EXPORT_SYMBOL(PAGE_SHARED_NOEXEC); -+ - void __init paging_init(void) - { - switch(sparc_cpu_model) { -@@ -341,17 +344,17 @@ void __init paging_init(void) - - /* Initialize the protection map with non-constant, MMU dependent values. */ - protection_map[0] = PAGE_NONE; -- protection_map[1] = PAGE_READONLY; -- protection_map[2] = PAGE_COPY; -- protection_map[3] = PAGE_COPY; -+ protection_map[1] = PAGE_READONLY_NOEXEC; -+ protection_map[2] = PAGE_COPY_NOEXEC; -+ protection_map[3] = PAGE_COPY_NOEXEC; - protection_map[4] = PAGE_READONLY; - protection_map[5] = PAGE_READONLY; - protection_map[6] = PAGE_COPY; - protection_map[7] = PAGE_COPY; - protection_map[8] = PAGE_NONE; -- protection_map[9] = PAGE_READONLY; -- protection_map[10] = PAGE_SHARED; -- protection_map[11] = PAGE_SHARED; -+ protection_map[9] = PAGE_READONLY_NOEXEC; -+ protection_map[10] = PAGE_SHARED_NOEXEC; -+ protection_map[11] = PAGE_SHARED_NOEXEC; - protection_map[12] = PAGE_READONLY; - protection_map[13] = PAGE_READONLY; - protection_map[14] = PAGE_SHARED; -diff -urNp linux-2.6.30.4/arch/sparc/mm/Makefile linux-2.6.30.4/arch/sparc/mm/Makefile ---- linux-2.6.30.4/arch/sparc/mm/Makefile 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/mm/Makefile 2009-07-30 09:48:09.912653453 -0400 -@@ -2,7 +2,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o - obj-y += fault_$(BITS).o -diff -urNp linux-2.6.30.4/arch/sparc/mm/srmmu.c linux-2.6.30.4/arch/sparc/mm/srmmu.c ---- linux-2.6.30.4/arch/sparc/mm/srmmu.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/sparc/mm/srmmu.c 2009-07-30 09:48:09.914627627 -0400 -@@ -2148,6 +2148,13 @@ void __init ld_mmu_srmmu(void) - PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED); - BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY)); - BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY)); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC); -+ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC)); -+ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC)); -+#endif -+ - BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL)); - page_kernel = pgprot_val(SRMMU_PAGE_KERNEL); - -diff -urNp linux-2.6.30.4/arch/um/include/asm/kmap_types.h linux-2.6.30.4/arch/um/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/um/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/um/include/asm/kmap_types.h 2009-07-30 09:48:09.914627627 -0400 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/arch/um/include/asm/page.h linux-2.6.30.4/arch/um/include/asm/page.h ---- linux-2.6.30.4/arch/um/include/asm/page.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/um/include/asm/page.h 2009-07-30 09:48:09.915798567 -0400 -@@ -14,6 +14,9 @@ - #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) - #define PAGE_MASK (~(PAGE_SIZE-1)) - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - #ifndef __ASSEMBLY__ - - struct page; -diff -urNp linux-2.6.30.4/arch/um/sys-i386/syscalls.c linux-2.6.30.4/arch/um/sys-i386/syscalls.c ---- linux-2.6.30.4/arch/um/sys-i386/syscalls.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/um/sys-i386/syscalls.c 2009-07-30 09:48:09.915798567 -0400 -@@ -11,6 +11,21 @@ - #include "asm/uaccess.h" - #include "asm/unistd.h" - -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) -+{ -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ - /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/i386 didn't use to be able to handle more than -diff -urNp linux-2.6.30.4/arch/x86/boot/bitops.h linux-2.6.30.4/arch/x86/boot/bitops.h ---- linux-2.6.30.4/arch/x86/boot/bitops.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/bitops.h 2009-07-30 09:48:09.917626356 -0400 -@@ -26,7 +26,7 @@ static inline int variable_test_bit(int - u8 v; - const u32 *p = (const u32 *)addr; - -- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); -+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); - return v; - } - -@@ -37,7 +37,7 @@ static inline int variable_test_bit(int - - static inline void set_bit(int nr, void *addr) - { -- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); -+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); - } - - #endif /* BOOT_BITOPS_H */ -diff -urNp linux-2.6.30.4/arch/x86/boot/boot.h linux-2.6.30.4/arch/x86/boot/boot.h ---- linux-2.6.30.4/arch/x86/boot/boot.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/boot.h 2009-07-30 09:48:09.917626356 -0400 -@@ -80,7 +80,7 @@ static inline void io_delay(void) - static inline u16 ds(void) - { - u16 seg; -- asm("movw %%ds,%0" : "=rm" (seg)); -+ asm volatile("movw %%ds,%0" : "=rm" (seg)); - return seg; - } - -@@ -176,7 +176,7 @@ static inline void wrgs32(u32 v, addr_t - static inline int memcmp(const void *s1, const void *s2, size_t len) - { - u8 diff; -- asm("repe; cmpsb; setnz %0" -+ asm volatile("repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; - } -diff -urNp linux-2.6.30.4/arch/x86/boot/compressed/head_32.S linux-2.6.30.4/arch/x86/boot/compressed/head_32.S ---- linux-2.6.30.4/arch/x86/boot/compressed/head_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/compressed/head_32.S 2009-07-30 09:48:09.917626356 -0400 -@@ -68,7 +68,7 @@ ENTRY(startup_32) - addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebx - andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebx - #else -- movl $LOAD_PHYSICAL_ADDR, %ebx -+ movl $____LOAD_PHYSICAL_ADDR, %ebx - #endif - - /* Replace the compressed data size with the uncompressed size */ -@@ -78,8 +78,8 @@ ENTRY(startup_32) - /* Add 8 bytes for every 32K input block */ - shrl $12, %eax - addl %eax, %ebx -- /* Add 32K + 18 bytes of extra slack */ -- addl $(32768 + 18), %ebx -+ /* Add 64K of extra slack */ -+ addl $65536, %ebx - /* Align on a 4K boundary */ - addl $4095, %ebx - andl $~4095, %ebx -@@ -103,7 +103,7 @@ ENTRY(startup_32) - addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebp - andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebp - #else -- movl $LOAD_PHYSICAL_ADDR, %ebp -+ movl $____LOAD_PHYSICAL_ADDR, %ebp - #endif - - /* -@@ -160,16 +160,15 @@ relocated: - * and where it was actually loaded. - */ - movl %ebp, %ebx -- subl $LOAD_PHYSICAL_ADDR, %ebx -+ subl $____LOAD_PHYSICAL_ADDR, %ebx - jz 2f /* Nothing to be done if loaded at compiled addr. */ - /* - * Process relocations. - */ - - 1: subl $4, %edi -- movl 0(%edi), %ecx -- testl %ecx, %ecx -- jz 2f -+ movl (%edi), %ecx -+ jecxz 2f - addl %ebx, -__PAGE_OFFSET(%ebx, %ecx) - jmp 1b - 2: -diff -urNp linux-2.6.30.4/arch/x86/boot/compressed/misc.c linux-2.6.30.4/arch/x86/boot/compressed/misc.c ---- linux-2.6.30.4/arch/x86/boot/compressed/misc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/compressed/misc.c 2009-07-30 09:48:09.917626356 -0400 -@@ -288,7 +288,7 @@ static void parse_elf(void *output) - case PT_LOAD: - #ifdef CONFIG_RELOCATABLE - dest = output; -- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR); -+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR); - #else - dest = (void *)(phdr->p_paddr); - #endif -@@ -336,7 +336,7 @@ asmlinkage void decompress_kernel(void * - if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff)) - error("Destination address too large"); - #ifndef CONFIG_RELOCATABLE -- if ((u32)output != LOAD_PHYSICAL_ADDR) -+ if ((u32)output != ____LOAD_PHYSICAL_ADDR) - error("Wrong destination address"); - #endif - #endif -diff -urNp linux-2.6.30.4/arch/x86/boot/compressed/relocs.c linux-2.6.30.4/arch/x86/boot/compressed/relocs.c ---- linux-2.6.30.4/arch/x86/boot/compressed/relocs.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/compressed/relocs.c 2009-07-30 09:48:09.918715361 -0400 -@@ -10,8 +10,11 @@ - #define USE_BSD - #include - -+#include "../../../../include/linux/autoconf.h" -+ - #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - static Elf32_Ehdr ehdr; -+static Elf32_Phdr *phdr; - static unsigned long reloc_count, reloc_idx; - static unsigned long *relocs; - -@@ -245,6 +248,36 @@ static void read_ehdr(FILE *fp) - } - } - -+static void read_phdrs(FILE *fp) -+{ -+ int i; -+ -+ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr)); -+ if (!phdr) { -+ die("Unable to allocate %d program headers\n", -+ ehdr.e_phnum); -+ } -+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) { -+ die("Seek to %d failed: %s\n", -+ ehdr.e_phoff, strerror(errno)); -+ } -+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) { -+ die("Cannot read ELF program headers: %s\n", -+ strerror(errno)); -+ } -+ for(i = 0; i < ehdr.e_phnum; i++) { -+ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type); -+ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset); -+ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr); -+ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr); -+ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz); -+ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz); -+ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags); -+ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align); -+ } -+ -+} -+ - static void read_shdrs(FILE *fp) - { - int i; -@@ -341,6 +374,8 @@ static void read_symtabs(FILE *fp) - static void read_relocs(FILE *fp) - { - int i,j; -+ uint32_t base; -+ - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_REL) { -@@ -360,9 +395,18 @@ static void read_relocs(FILE *fp) - die("Cannot read symbol table: %s\n", - strerror(errno)); - } -+ base = 0; -+ for (j = 0; j < ehdr.e_phnum; j++) { -+ if (phdr[j].p_type != PT_LOAD ) -+ continue; -+ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz) -+ continue; -+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr; -+ break; -+ } - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel = &sec->reltab[j]; -- rel->r_offset = elf32_to_cpu(rel->r_offset); -+ rel->r_offset = elf32_to_cpu(rel->r_offset) + base; - rel->r_info = elf32_to_cpu(rel->r_info); - } - } -@@ -504,6 +548,23 @@ static void walk_relocs(void (*visit)(El - if (sym->st_shndx == SHN_ABS) { - continue; - } -+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */ -+ if (!strcmp(sec_name(sym->st_shndx), ".data.percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load")) -+ continue; -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) -+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */ -+ if (!strcmp(sec_name(sym->st_shndx), ".init.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".text.head")) { -+ if (strcmp(sym_name(sym_strtab, sym), "__init_end") && -+ strcmp(sym_name(sym_strtab, sym), "KERNEL_TEXT_OFFSET")) -+ continue; -+ } -+ if (!strcmp(sec_name(sym->st_shndx), ".text")) -+ continue; -+#endif - if (r_type == R_386_NONE || r_type == R_386_PC32) { - /* - * NONE can be ignored and and PC relative -@@ -634,6 +695,7 @@ int main(int argc, char **argv) - fname, strerror(errno)); - } - read_ehdr(fp); -+ read_phdrs(fp); - read_shdrs(fp); - read_strtabs(fp); - read_symtabs(fp); -diff -urNp linux-2.6.30.4/arch/x86/boot/cpucheck.c linux-2.6.30.4/arch/x86/boot/cpucheck.c ---- linux-2.6.30.4/arch/x86/boot/cpucheck.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/cpucheck.c 2009-07-30 09:48:09.918715361 -0400 -@@ -74,7 +74,7 @@ static int has_fpu(void) - u16 fcw = -1, fsw = -1; - u32 cr0; - -- asm("movl %%cr0,%0" : "=r" (cr0)); -+ asm volatile("movl %%cr0,%0" : "=r" (cr0)); - if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { - cr0 &= ~(X86_CR0_EM|X86_CR0_TS); - asm volatile("movl %0,%%cr0" : : "r" (cr0)); -@@ -90,7 +90,7 @@ static int has_eflag(u32 mask) - { - u32 f0, f1; - -- asm("pushfl ; " -+ asm volatile("pushfl ; " - "pushfl ; " - "popl %0 ; " - "movl %0,%1 ; " -@@ -115,7 +115,7 @@ static void get_flags(void) - set_bit(X86_FEATURE_FPU, cpu.flags); - - if (has_eflag(X86_EFLAGS_ID)) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_intel_level), - "=b" (cpu_vendor[0]), - "=d" (cpu_vendor[1]), -@@ -124,7 +124,7 @@ static void get_flags(void) - - if (max_intel_level >= 0x00000001 && - max_intel_level <= 0x0000ffff) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (tfms), - "=c" (cpu.flags[4]), - "=d" (cpu.flags[0]) -@@ -136,7 +136,7 @@ static void get_flags(void) - cpu.model += ((tfms >> 16) & 0xf) << 4; - } - -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_amd_level) - : "a" (0x80000000) - : "ebx", "ecx", "edx"); -@@ -144,7 +144,7 @@ static void get_flags(void) - if (max_amd_level >= 0x80000001 && - max_amd_level <= 0x8000ffff) { - u32 eax = 0x80000001; -- asm("cpuid" -+ asm volatile("cpuid" - : "+a" (eax), - "=c" (cpu.flags[6]), - "=d" (cpu.flags[1]) -@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 ecx = MSR_K7_HWCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax &= ~(1 << 15); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - get_flags(); /* Make sure it really did something */ - err = check_flags(); -@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 ecx = MSR_VIA_FCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax |= (1<<1)|(1<<7); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - set_bit(X86_FEATURE_CX8, cpu.flags); - err = check_flags(); -@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 eax, edx; - u32 level = 1; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -- asm("cpuid" -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -+ asm volatile("cpuid" - : "+a" (level), "=d" (cpu.flags[0]) - : : "ecx", "ebx"); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - err = check_flags(); - } -diff -urNp linux-2.6.30.4/arch/x86/boot/edd.c linux-2.6.30.4/arch/x86/boot/edd.c ---- linux-2.6.30.4/arch/x86/boot/edd.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/edd.c 2009-07-30 09:48:09.919627263 -0400 -@@ -81,7 +81,7 @@ static int get_edd_info(u8 devno, struct - ax = 0x4100; - bx = EDDMAGIC1; - dx = devno; -- asm("pushfl; stc; int $0x13; setc %%al; popfl" -+ asm volatile("pushfl; stc; int $0x13; setc %%al; popfl" - : "+a" (ax), "+b" (bx), "=c" (cx), "+d" (dx) - : : "esi", "edi"); - -@@ -100,7 +100,7 @@ static int get_edd_info(u8 devno, struct - ei->params.length = sizeof(ei->params); - ax = 0x4800; - dx = devno; -- asm("pushfl; int $0x13; popfl" -+ asm volatile("pushfl; int $0x13; popfl" - : "+a" (ax), "+d" (dx), "=m" (ei->params) - : "S" (&ei->params) - : "ebx", "ecx", "edi"); -@@ -111,7 +111,7 @@ static int get_edd_info(u8 devno, struct - ax = 0x0800; - dx = devno; - di = 0; -- asm("pushw %%es; " -+ asm volatile("pushw %%es; " - "movw %%di,%%es; " - "pushfl; stc; int $0x13; setc %%al; popfl; " - "popw %%es" -diff -urNp linux-2.6.30.4/arch/x86/boot/main.c linux-2.6.30.4/arch/x86/boot/main.c ---- linux-2.6.30.4/arch/x86/boot/main.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/main.c 2009-07-30 09:48:09.919627263 -0400 -@@ -78,7 +78,7 @@ static void query_ist(void) - if (cpu.level < 6) - return; - -- asm("int $0x15" -+ asm volatile("int $0x15" - : "=a" (boot_params.ist_info.signature), - "=b" (boot_params.ist_info.command), - "=c" (boot_params.ist_info.event), -diff -urNp linux-2.6.30.4/arch/x86/boot/mca.c linux-2.6.30.4/arch/x86/boot/mca.c ---- linux-2.6.30.4/arch/x86/boot/mca.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/mca.c 2009-07-30 09:48:09.919627263 -0400 -@@ -19,7 +19,7 @@ int query_mca(void) - u8 err; - u16 es, bx, len; - -- asm("pushw %%es ; " -+ asm volatile("pushw %%es ; " - "int $0x15 ; " - "setc %0 ; " - "movw %%es, %1 ; " -diff -urNp linux-2.6.30.4/arch/x86/boot/memory.c linux-2.6.30.4/arch/x86/boot/memory.c ---- linux-2.6.30.4/arch/x86/boot/memory.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/memory.c 2009-07-30 09:48:09.919627263 -0400 -@@ -47,7 +47,7 @@ static int detect_memory_e820(void) - so they must be either used for the error output - or explicitly marked clobbered. Given that, assume there - is something out there clobbering %ebp and %edi, too. */ -- asm("pushl %%ebp; int $0x15; popl %%ebp; setc %0" -+ asm volatile("pushl %%ebp; int $0x15; popl %%ebp; setc %0" - : "=d" (err), "+b" (next), "=a" (id), "+c" (size), - "=D" (edi), "+m" (buf) - : "D" (&buf), "d" (SMAP), "a" (0xe820) -@@ -83,7 +83,7 @@ static int detect_memory_e801(void) - - bx = cx = dx = 0; - ax = 0xe801; -- asm("stc; int $0x15; setc %0" -+ asm volatile("stc; int $0x15; setc %0" - : "=m" (err), "+a" (ax), "+b" (bx), "+c" (cx), "+d" (dx)); - - if (err) -@@ -113,7 +113,7 @@ static int detect_memory_88(void) - u8 err; - - ax = 0x8800; -- asm("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax)); -+ asm volatile("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax)); - - boot_params.screen_info.ext_mem_k = ax; - -diff -urNp linux-2.6.30.4/arch/x86/boot/video.c linux-2.6.30.4/arch/x86/boot/video.c ---- linux-2.6.30.4/arch/x86/boot/video.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/video.c 2009-07-30 09:48:09.920627513 -0400 -@@ -23,7 +23,7 @@ static void store_cursor_position(void) - - ax = 0x0300; - bx = 0; -- asm(INT10 -+ asm volatile(INT10 - : "=d" (curpos), "+a" (ax), "+b" (bx) - : : "ecx", "esi", "edi"); - -@@ -38,7 +38,7 @@ static void store_video_mode(void) - /* N.B.: the saving of the video page here is a bit silly, - since we pretty much assume page 0 everywhere. */ - ax = 0x0f00; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "=b" (page) - : : "ecx", "edx", "esi", "edi"); - -diff -urNp linux-2.6.30.4/arch/x86/boot/video-vesa.c linux-2.6.30.4/arch/x86/boot/video-vesa.c ---- linux-2.6.30.4/arch/x86/boot/video-vesa.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/boot/video-vesa.c 2009-07-30 09:48:09.920627513 -0400 -@@ -41,7 +41,7 @@ static int vesa_probe(void) - - ax = 0x4f00; - di = (size_t)&vginfo; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+D" (di), "=m" (vginfo) - : : "ebx", "ecx", "edx", "esi"); - -@@ -68,7 +68,7 @@ static int vesa_probe(void) - ax = 0x4f01; - cx = mode; - di = (size_t)&vminfo; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo) - : : "ebx", "edx", "esi"); - -@@ -120,7 +120,7 @@ static int vesa_set_mode(struct mode_inf - ax = 0x4f01; - cx = vesa_mode; - di = (size_t)&vminfo; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo) - : : "ebx", "edx", "esi"); - -@@ -202,19 +202,20 @@ static void vesa_dac_set_8bits(void) - /* Save the VESA protected mode info */ - static void vesa_store_pm_info(void) - { -- u16 ax, bx, di, es; -+ u16 ax, bx, cx, di, es; - - ax = 0x4f0a; -- bx = di = 0; -- asm("pushw %%es; "INT10"; movw %%es,%0; popw %%es" -- : "=d" (es), "+a" (ax), "+b" (bx), "+D" (di) -- : : "ecx", "esi"); -+ bx = cx = di = 0; -+ asm volatile("pushw %%es; "INT10"; movw %%es,%0; popw %%es" -+ : "=d" (es), "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di) -+ : : "esi"); - - if (ax != 0x004f) - return; - - boot_params.screen_info.vesapm_seg = es; - boot_params.screen_info.vesapm_off = di; -+ boot_params.screen_info.vesapm_size = cx; - } - - /* -@@ -268,7 +269,7 @@ void vesa_store_edid(void) - /* Note: The VBE DDC spec is different from the main VESA spec; - we genuinely have to assume all registers are destroyed here. */ - -- asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es" -+ asm volatile("pushw %%es; movw %2,%%es; "INT10"; popw %%es" - : "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di) - : : "esi", "edx"); - -@@ -283,7 +284,7 @@ void vesa_store_edid(void) - cx = 0; /* Controller 0 */ - dx = 0; /* EDID block number */ - di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */ -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info), - "+c" (cx), "+D" (di) - : : "esi"); -diff -urNp linux-2.6.30.4/arch/x86/boot/video-vga.c linux-2.6.30.4/arch/x86/boot/video-vga.c ---- linux-2.6.30.4/arch/x86/boot/video-vga.c 2009-07-30 20:32:40.362766121 -0400 -+++ linux-2.6.30.4/arch/x86/boot/video-vga.c 2009-07-30 20:35:05.409914191 -0400 -@@ -260,7 +260,7 @@ static int vga_probe(void) - u8 vga_flag; - - ax = 0x1200; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "=b" (ega_bx) - : "b" (0x10) /* Check EGA/VGA */ - : "ecx", "edx", "esi", "edi"); -@@ -272,7 +272,7 @@ static int vga_probe(void) - /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */ - if ((u8)ega_bx != 0x10) { - /* EGA/VGA */ -- asm(INT10 -+ asm volatile(INT10 - : "=a" (vga_flag) - : "a" (0x1a00) - : "ebx", "ecx", "edx", "esi", "edi"); -diff -urNp linux-2.6.30.4/arch/x86/ia32/ia32_signal.c linux-2.6.30.4/arch/x86/ia32/ia32_signal.c ---- linux-2.6.30.4/arch/x86/ia32/ia32_signal.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/ia32/ia32_signal.c 2009-07-30 09:48:09.921498916 -0400 -@@ -403,7 +403,7 @@ static void __user *get_sigframe(struct - sp -= frame_size; - /* Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. */ -- sp = ((sp + 4) & -16ul) - 4; -+ sp = ((sp - 12) & -16ul) - 4; - return (void __user *) sp; - } - -@@ -503,7 +503,7 @@ int ia32_setup_rt_frame(int sig, struct - 0xb8, - __NR_ia32_rt_sigreturn, - 0x80cd, -- 0, -+ 0 - }; - - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); -diff -urNp linux-2.6.30.4/arch/x86/include/asm/alternative.h linux-2.6.30.4/arch/x86/include/asm/alternative.h ---- linux-2.6.30.4/arch/x86/include/asm/alternative.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/alternative.h 2009-07-30 09:48:09.921498916 -0400 -@@ -96,7 +96,7 @@ const unsigned char *const *find_nop_tab - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ -- ".section .altinstr_replacement,\"ax\"\n" \ -+ ".section .altinstr_replacement,\"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" :: "i" (feature) : "memory") - -@@ -120,7 +120,7 @@ const unsigned char *const *find_nop_tab - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ -- ".section .altinstr_replacement,\"ax\"\n" \ -+ ".section .altinstr_replacement,\"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" :: "i" (feature), ##input) - -@@ -135,7 +135,7 @@ const unsigned char *const *find_nop_tab - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ -- ".section .altinstr_replacement,\"ax\"\n" \ -+ ".section .altinstr_replacement,\"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" : output : [feat] "i" (feature), ##input) - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/apm.h linux-2.6.30.4/arch/x86/include/asm/apm.h ---- linux-2.6.30.4/arch/x86/include/asm/apm.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/apm.h 2009-07-30 09:48:09.921498916 -0400 -@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%al\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_as - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%bl\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -diff -urNp linux-2.6.30.4/arch/x86/include/asm/atomic_32.h linux-2.6.30.4/arch/x86/include/asm/atomic_32.h ---- linux-2.6.30.4/arch/x86/include/asm/atomic_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/atomic_32.h 2009-07-30 09:48:09.921498916 -0400 -@@ -39,7 +39,29 @@ - */ - static inline void atomic_add(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_add_unchecked - add integer to atomic variable -+ * @i: integer value to add -+ * @v: pointer of type atomic_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -53,7 +75,29 @@ static inline void atomic_add(int i, ato - */ - static inline void atomic_sub(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "subl %1,%0" -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %1,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_sub_unchecked - subtract integer from atomic variable -+ * @i: integer value to subtract -+ * @v: pointer of type atomic_t -+ * -+ * Atomically subtracts @i from @v. -+ */ -+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -71,7 +115,16 @@ static inline int atomic_sub_and_test(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %2,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -85,7 +138,30 @@ static inline int atomic_sub_and_test(in - */ - static inline void atomic_inc(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "incl %0" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ : "+m" (v->counter)); -+} -+ -+/** -+ * atomic_inc_unchecked - increment atomic variable -+ * @v: pointer of type atomic_t -+ * -+ * Atomically increments @v by 1. -+ */ -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "incl %0\n" - : "+m" (v->counter)); - } - -@@ -97,7 +173,18 @@ static inline void atomic_inc(atomic_t * - */ - static inline void atomic_dec(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "decl %0" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (v->counter)); - } - -@@ -113,7 +200,19 @@ static inline int atomic_dec_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decl %0; sete %1" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -131,7 +230,19 @@ static inline int atomic_inc_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incl %0; sete %1" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -150,7 +261,16 @@ static inline int atomic_add_negative(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %2,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -173,7 +293,15 @@ static inline int atomic_add_return(int - #endif - /* Modern 486+ processor */ - __i = i; -- asm volatile(LOCK_PREFIX "xaddl %0, %1" -+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movl %0, %1\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -@@ -214,17 +342,28 @@ static inline int atomic_sub_return(int - */ - static inline int atomic_add_unless(atomic_t *v, int a, int u) - { -- int c, old; -+ int c, old, new; - c = atomic_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a)); -+ -+ old = atomic_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -diff -urNp linux-2.6.30.4/arch/x86/include/asm/atomic_64.h linux-2.6.30.4/arch/x86/include/asm/atomic_64.h ---- linux-2.6.30.4/arch/x86/include/asm/atomic_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/atomic_64.h 2009-07-30 09:48:09.922664908 -0400 -@@ -38,7 +38,29 @@ - */ - static inline void atomic_add(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "ir" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic_add_unchecked - add integer to atomic variable -+ * @i: integer value to add -+ * @v: pointer of type atomic_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "=m" (v->counter) - : "ir" (i), "m" (v->counter)); - } -@@ -52,7 +74,29 @@ static inline void atomic_add(int i, ato - */ - static inline void atomic_sub(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "subl %1,%0" -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "ir" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic_sub_unchecked - subtract the atomic variable -+ * @i: integer value to subtract -+ * @v: pointer of type atomic_t -+ * -+ * Atomically subtracts @i from @v. -+ */ -+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" - : "=m" (v->counter) - : "ir" (i), "m" (v->counter)); - } -@@ -70,7 +114,16 @@ static inline int atomic_sub_and_test(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "ir" (i), "m" (v->counter) : "memory"); - return c; -@@ -84,7 +137,32 @@ static inline int atomic_sub_and_test(in - */ - static inline void atomic_inc(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "incl %0" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ : "=m" (v->counter) -+ : "m" (v->counter)); -+} -+ -+/** -+ * atomic_inc_unchecked - increment atomic variable -+ * @v: pointer of type atomic_t -+ * -+ * Atomically increments @v by 1. -+ */ -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "incl %0\n" - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -97,7 +175,19 @@ static inline void atomic_inc(atomic_t * - */ - static inline void atomic_dec(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "decl %0" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -114,7 +204,20 @@ static inline int atomic_dec_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decl %0; sete %1" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -132,7 +235,20 @@ static inline int atomic_inc_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incl %0; sete %1" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -151,7 +267,16 @@ static inline int atomic_add_negative(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "=m" (v->counter), "=qm" (c) - : "ir" (i), "m" (v->counter) : "memory"); - return c; -@@ -167,7 +292,15 @@ static inline int atomic_add_negative(in - static inline int atomic_add_return(int i, atomic_t *v) - { - int __i = i; -- asm volatile(LOCK_PREFIX "xaddl %0, %1" -+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movl %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -@@ -212,7 +345,15 @@ static inline int atomic_sub_return(int - */ - static inline void atomic64_add(long i, atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "addq %1,%0" -+ asm volatile(LOCK_PREFIX "addq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); - } -@@ -226,7 +367,15 @@ static inline void atomic64_add(long i, - */ - static inline void atomic64_sub(long i, atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "subq %1,%0" -+ asm volatile(LOCK_PREFIX "subq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); - } -@@ -244,7 +393,16 @@ static inline int atomic64_sub_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -258,7 +416,19 @@ static inline int atomic64_sub_and_test( - */ - static inline void atomic64_inc(atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "incq %0" -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -271,7 +441,19 @@ static inline void atomic64_inc(atomic64 - */ - static inline void atomic64_dec(atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "decq %0" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -288,7 +470,20 @@ static inline int atomic64_dec_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decq %0; sete %1" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -306,7 +501,20 @@ static inline int atomic64_inc_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incq %0; sete %1" -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "decq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -325,7 +533,16 @@ static inline int atomic64_add_negative( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -341,7 +558,15 @@ static inline int atomic64_add_negative( - static inline long atomic64_add_return(long i, atomic64_t *v) - { - long __i = i; -- asm volatile(LOCK_PREFIX "xaddq %0, %1;" -+ asm volatile(LOCK_PREFIX "xaddq %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movq %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -@@ -372,17 +597,29 @@ static inline long atomic64_sub_return(l - */ - static inline int atomic_add_unless(atomic_t *v, int a, int u) - { -- int c, old; -+ int c, old, new; - c = atomic_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a)); -+ -+ old = atomic_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -@@ -398,17 +635,29 @@ static inline int atomic_add_unless(atom - */ - static inline int atomic64_add_unless(atomic64_t *v, long a, long u) - { -- long c, old; -+ long c, old, new; - c = atomic64_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic64_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "er" (a)); -+ -+ old = atomic64_cmpxchg((v), c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - /** -diff -urNp linux-2.6.30.4/arch/x86/include/asm/boot.h linux-2.6.30.4/arch/x86/include/asm/boot.h ---- linux-2.6.30.4/arch/x86/include/asm/boot.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/boot.h 2009-07-30 09:48:09.922664908 -0400 -@@ -9,10 +9,15 @@ - #ifdef __KERNEL__ - - /* Physical address where kernel should be loaded. */ --#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ -+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ - + (CONFIG_PHYSICAL_ALIGN - 1)) \ - & ~(CONFIG_PHYSICAL_ALIGN - 1)) - -+#ifndef __ASSEMBLY__ -+extern unsigned char __LOAD_PHYSICAL_ADDR[]; -+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR) -+#endif -+ - #ifdef CONFIG_KERNEL_BZIP2 - #define BOOT_HEAP_SIZE 0x400000 - #else /* !CONFIG_KERNEL_BZIP2 */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/cache.h linux-2.6.30.4/arch/x86/include/asm/cache.h ---- linux-2.6.30.4/arch/x86/include/asm/cache.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/cache.h 2009-07-30 09:48:09.923412137 -0400 -@@ -6,6 +6,7 @@ - #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) - - #define __read_mostly __attribute__((__section__(".data.read_mostly"))) -+#define __read_only __attribute__((__section__(".data.read_only"))) - - #ifdef CONFIG_X86_VSMP - /* vSMP Internode cacheline shift */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/checksum_32.h linux-2.6.30.4/arch/x86/include/asm/checksum_32.h ---- linux-2.6.30.4/arch/x86/include/asm/checksum_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/checksum_32.h 2009-07-30 09:48:09.923412137 -0400 -@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene - int len, __wsum sum, - int *src_err_ptr, int *dst_err_ptr); - -+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ -+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ - /* - * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. -@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_f - int *err_ptr) - { - might_sleep(); -- return csum_partial_copy_generic((__force void *)src, dst, -+ return csum_partial_copy_generic_from_user((__force void *)src, dst, - len, sum, err_ptr, NULL); - } - -@@ -177,7 +185,7 @@ static inline __wsum csum_and_copy_to_us - { - might_sleep(); - if (access_ok(VERIFY_WRITE, dst, len)) -- return csum_partial_copy_generic(src, (__force void *)dst, -+ return csum_partial_copy_generic_to_user(src, (__force void *)dst, - len, sum, NULL, err_ptr); - - if (len) -diff -urNp linux-2.6.30.4/arch/x86/include/asm/desc.h linux-2.6.30.4/arch/x86/include/asm/desc.h ---- linux-2.6.30.4/arch/x86/include/asm/desc.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/desc.h 2009-07-30 09:48:09.923412137 -0400 -@@ -16,6 +16,7 @@ static inline void fill_ldt(struct desc_ - desc->base1 = (info->base_addr & 0x00ff0000) >> 16; - desc->type = (info->read_exec_only ^ 1) << 1; - desc->type |= info->contents << 2; -+ desc->type |= info->seg_not_present ^ 1; - desc->s = 1; - desc->dpl = 0x3; - desc->p = info->seg_not_present ^ 1; -@@ -32,16 +33,12 @@ static inline void fill_ldt(struct desc_ - } - - extern struct desc_ptr idt_descr; --extern gate_desc idt_table[]; -- --struct gdt_page { -- struct desc_struct gdt[GDT_ENTRIES]; --} __attribute__((aligned(PAGE_SIZE))); --DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page); -+extern gate_desc idt_table[256]; - -+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)]; - static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) - { -- return per_cpu(gdt_page, cpu).gdt; -+ return cpu_gdt_table[cpu]; - } - - #ifdef CONFIG_X86_64 -@@ -116,19 +113,48 @@ static inline void paravirt_free_ldt(str - static inline void native_write_idt_entry(gate_desc *idt, int entry, - const gate_desc *gate) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - memcpy(&idt[entry], gate, sizeof(*gate)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, - const void *desc) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - memcpy(&ldt[entry], desc, 8); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry, - const void *desc, int type) - { - unsigned int size; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - switch (type) { - case DESC_TSS: - size = sizeof(tss_desc); -@@ -140,7 +166,17 @@ static inline void native_write_gdt_entr - size = sizeof(struct desc_struct); - break; - } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - memcpy(&gdt[entry], desc, size); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void pack_descriptor(struct desc_struct *desc, unsigned long base, -@@ -212,7 +248,19 @@ static inline void native_set_ldt(const - - static inline void native_load_tr_desc(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_load_gdt(const struct desc_ptr *dtr) -@@ -247,8 +295,19 @@ static inline void native_load_tls(struc - unsigned int i; - struct desc_struct *gdt = get_cpu_gdt_table(cpu); - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) - gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - #define _LDT_empty(info) \ -@@ -380,6 +439,18 @@ static inline void set_system_intr_gate_ - _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS); - } - -+#ifdef CONFIG_X86_32 -+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu) -+{ -+ struct desc_struct d; -+ -+ if (likely(limit)) -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ pack_descriptor(&d, base, limit, 0xFB, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S); -+} -+#endif -+ - #else - /* - * GET_DESC_BASE reads the descriptor base of the specified segment. -diff -urNp linux-2.6.30.4/arch/x86/include/asm/e820.h linux-2.6.30.4/arch/x86/include/asm/e820.h ---- linux-2.6.30.4/arch/x86/include/asm/e820.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/e820.h 2009-07-30 09:48:09.924429298 -0400 -@@ -135,7 +135,7 @@ extern char *memory_setup(void); - #define ISA_END_ADDRESS 0x100000 - #define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS) - --#define BIOS_BEGIN 0x000a0000 -+#define BIOS_BEGIN 0x000c0000 - #define BIOS_END 0x00100000 - - #ifdef __KERNEL__ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/elf.h linux-2.6.30.4/arch/x86/include/asm/elf.h ---- linux-2.6.30.4/arch/x86/include/asm/elf.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/elf.h 2009-07-30 09:48:09.927602624 -0400 -@@ -263,7 +263,25 @@ extern int force_personality32; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2) -+#else - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+#ifdef CONFIG_X86_32 -+#define PAX_ELF_ET_DYN_BASE 0x10000000UL -+ -+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#else -+#define PAX_ELF_ET_DYN_BASE 0x400000UL -+ -+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32) -+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32) -+#endif -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -@@ -315,8 +333,7 @@ do { \ - #define ARCH_DLINFO \ - do { \ - if (vdso_enabled) \ -- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ -- (unsigned long)current->mm->context.vdso); \ -+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);\ - } while (0) - - #define AT_SYSINFO 32 -@@ -327,7 +344,7 @@ do { \ - - #endif /* !CONFIG_X86_32 */ - --#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso) -+#define VDSO_CURRENT_BASE (current->mm->context.vdso) - - #define VDSO_ENTRY \ - ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall)) -@@ -341,7 +358,4 @@ extern int arch_setup_additional_pages(s - extern int syscall32_setup_pages(struct linux_binprm *, int exstack); - #define compat_arch_setup_additional_pages syscall32_setup_pages - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* _ASM_X86_ELF_H */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/futex.h linux-2.6.30.4/arch/x86/include/asm/futex.h ---- linux-2.6.30.4/arch/x86/include/asm/futex.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/futex.h 2009-07-30 09:48:09.927602624 -0400 -@@ -11,6 +11,40 @@ - #include - #include - -+#ifdef CONFIG_X86_32 -+#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ -+ asm volatile( \ -+ "movw\t%w6, %%ds\n" \ -+ "1:\t" insn "\n" \ -+ "2:\tpushl\t%%ss\n" \ -+ "\tpopl\t%%ds\n" \ -+ "\t.section .fixup,\"ax\"\n" \ -+ "3:\tmov\t%3, %1\n" \ -+ "\tjmp\t2b\n" \ -+ "\t.previous\n" \ -+ _ASM_EXTABLE(1b, 3b) \ -+ : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ -+ : "i" (-EFAULT), "0" (oparg), "1" (0), "r" (__USER_DS)) -+ -+#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ -+ asm volatile("movw\t%w7, %%es\n" \ -+ "1:\tmovl\t%%es:%2, %0\n" \ -+ "\tmovl\t%0, %3\n" \ -+ "\t" insn "\n" \ -+ "2:\t" LOCK_PREFIX "cmpxchgl %3, %%es:%2\n"\ -+ "\tjnz\t1b\n" \ -+ "3:\tpushl\t%%ss\n" \ -+ "\tpopl\t%%es\n" \ -+ "\t.section .fixup,\"ax\"\n" \ -+ "4:\tmov\t%5, %1\n" \ -+ "\tjmp\t3b\n" \ -+ "\t.previous\n" \ -+ _ASM_EXTABLE(1b, 4b) \ -+ _ASM_EXTABLE(2b, 4b) \ -+ : "=&a" (oldval), "=&r" (ret), \ -+ "+m" (*uaddr), "=&r" (tem) \ -+ : "r" (oparg), "i" (-EFAULT), "1" (0), "r" (__USER_DS)) -+#else - #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ - asm volatile("1:\t" insn "\n" \ - "2:\t.section .fixup,\"ax\"\n" \ -@@ -36,8 +70,9 @@ - : "=&a" (oldval), "=&r" (ret), \ - "+m" (*uaddr), "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) -+#endif - --static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) -+static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) - { - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; -@@ -61,11 +96,20 @@ static inline int futex_atomic_op_inuser - - switch (op) { - case FUTEX_OP_SET: -+#ifdef CONFIG_X86_32 -+ __futex_atomic_op1("xchgl %0, %%ds:%2", ret, oldval, uaddr, oparg); -+#else - __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); -+#endif - break; - case FUTEX_OP_ADD: -+#ifdef CONFIG_X86_32 -+ __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %%ds:%2", ret, oldval, -+ uaddr, oparg); -+#else - __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval, - uaddr, oparg); -+#endif - break; - case FUTEX_OP_OR: - __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg); -@@ -109,7 +153,7 @@ static inline int futex_atomic_op_inuser - return ret; - } - --static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, -+static inline int futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval, - int newval) - { - -@@ -122,14 +166,27 @@ static inline int futex_atomic_cmpxchg_i - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - -- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n" -+ asm volatile( -+#ifdef CONFIG_X86_32 -+ "\tmovw %w5, %%ds\n" -+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n" -+ "2:\tpushl %%ss\n" -+ "\tpopl %%ds\n" -+ "\t.section .fixup, \"ax\"\n" -+#else -+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n" - "2:\t.section .fixup, \"ax\"\n" -+#endif - "3:\tmov %2, %0\n" - "\tjmp 2b\n" - "\t.previous\n" - _ASM_EXTABLE(1b, 3b) - : "=a" (oldval), "+m" (*uaddr) -+#ifdef CONFIG_X86_32 -+ : "i" (-EFAULT), "r" (newval), "0" (oldval), "r" (__USER_DS) -+#else - : "i" (-EFAULT), "r" (newval), "0" (oldval) -+#endif - : "memory" - ); - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/i387.h linux-2.6.30.4/arch/x86/include/asm/i387.h ---- linux-2.6.30.4/arch/x86/include/asm/i387.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/i387.h 2009-07-30 09:48:09.927602624 -0400 -@@ -203,13 +203,8 @@ static inline void restore_fpu(struct ta - } - - /* We need a safe address that is cheap to find and that is already -- in L1 during context switch. The best choices are unfortunately -- different for UP and SMP */ --#ifdef CONFIG_SMP --#define safe_address (__per_cpu_offset[0]) --#else --#define safe_address (kstat_cpu(0).cpustat.user) --#endif -+ in L1 during context switch. */ -+#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0) - - /* - * These must be called with preempt disabled -diff -urNp linux-2.6.30.4/arch/x86/include/asm/io_64.h linux-2.6.30.4/arch/x86/include/asm/io_64.h ---- linux-2.6.30.4/arch/x86/include/asm/io_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/io_64.h 2009-07-30 09:48:09.927602624 -0400 -@@ -140,6 +140,17 @@ __OUTS(l) - - #include - -+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE -+static inline int valid_phys_addr_range (unsigned long addr, size_t count) -+{ -+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ -+static inline int valid_mmap_phys_addr_range (unsigned long pfn, size_t count) -+{ -+ return (pfn + (count >> PAGE_SHIFT)) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ - #include - - void __memcpy_fromio(void *, unsigned long, unsigned); -diff -urNp linux-2.6.30.4/arch/x86/include/asm/irqflags.h linux-2.6.30.4/arch/x86/include/asm/irqflags.h ---- linux-2.6.30.4/arch/x86/include/asm/irqflags.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/irqflags.h 2009-07-30 09:48:09.928623877 -0400 -@@ -141,6 +141,8 @@ static inline unsigned long __raw_local_ - #define INTERRUPT_RETURN iret - #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit - #define GET_CR0_INTO_EAX movl %cr0, %eax -+#define GET_CR0_INTO_EDX movl %cr0, %edx -+#define SET_CR0_FROM_EDX movl %edx, %cr0 - #endif - - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/kmap_types.h linux-2.6.30.4/arch/x86/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/x86/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/kmap_types.h 2009-07-30 09:48:09.928623877 -0400 -@@ -21,7 +21,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.30.4/arch/x86/include/asm/kvm_host.h linux-2.6.30.4/arch/x86/include/asm/kvm_host.h ---- linux-2.6.30.4/arch/x86/include/asm/kvm_host.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/kvm_host.h 2009-07-30 09:48:09.928623877 -0400 -@@ -529,7 +529,7 @@ struct kvm_x86_ops { - int (*get_mt_mask_shift)(void); - }; - --extern struct kvm_x86_ops *kvm_x86_ops; -+extern const struct kvm_x86_ops *kvm_x86_ops; - - int kvm_mmu_module_init(void); - void kvm_mmu_module_exit(void); -diff -urNp linux-2.6.30.4/arch/x86/include/asm/local.h linux-2.6.30.4/arch/x86/include/asm/local.h ---- linux-2.6.30.4/arch/x86/include/asm/local.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/local.h 2009-07-30 09:48:09.929617473 -0400 -@@ -18,26 +18,90 @@ typedef struct { - - static inline void local_inc(local_t *l) - { -- asm volatile(_ASM_INC "%0" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_DEC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_dec(local_t *l) - { -- asm volatile(_ASM_DEC "%0" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_INC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_add(long i, local_t *l) - { -- asm volatile(_ASM_ADD "%1,%0" -+ asm volatile(_ASM_ADD "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_SUB "%1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } - - static inline void local_sub(long i, local_t *l) - { -- asm volatile(_ASM_SUB "%1,%0" -+ asm volatile(_ASM_SUB "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_ADD "%1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } -@@ -55,7 +119,24 @@ static inline int local_sub_and_test(lon - { - unsigned char c; - -- asm volatile(_ASM_SUB "%2,%0; sete %1" -+ asm volatile(_ASM_SUB "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_ADD "%2,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -73,7 +154,24 @@ static inline int local_dec_and_test(loc - { - unsigned char c; - -- asm volatile(_ASM_DEC "%0; sete %1" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_INC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -91,7 +189,24 @@ static inline int local_inc_and_test(loc - { - unsigned char c; - -- asm volatile(_ASM_INC "%0; sete %1" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_DEC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -110,7 +225,24 @@ static inline int local_add_negative(lon - { - unsigned char c; - -- asm volatile(_ASM_ADD "%2,%0; sets %1" -+ asm volatile(_ASM_ADD "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_SUB "%2,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sets %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -133,7 +265,23 @@ static inline long local_add_return(long - #endif - /* Modern 486+ processor */ - __i = i; -- asm volatile(_ASM_XADD "%0, %1;" -+ asm volatile(_ASM_XADD "%0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_MOV "%0,%1\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+r" (i), "+m" (l->a.counter) - : : "memory"); - return i + __i; -diff -urNp linux-2.6.30.4/arch/x86/include/asm/mman.h linux-2.6.30.4/arch/x86/include/asm/mman.h ---- linux-2.6.30.4/arch/x86/include/asm/mman.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/mman.h 2009-07-30 09:48:09.929617473 -0400 -@@ -17,4 +17,14 @@ - #define MCL_CURRENT 1 /* lock all current mappings */ - #define MCL_FUTURE 2 /* lock all future mappings */ - -+#ifdef __KERNEL__ -+#ifndef __ASSEMBLY__ -+#ifdef CONFIG_X86_32 -+#define arch_mmap_check i386_mmap_check -+int i386_mmap_check(unsigned long addr, unsigned long len, -+ unsigned long flags); -+#endif -+#endif -+#endif -+ - #endif /* _ASM_X86_MMAN_H */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/mmu_context.h linux-2.6.30.4/arch/x86/include/asm/mmu_context.h ---- linux-2.6.30.4/arch/x86/include/asm/mmu_context.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/mmu_context.h 2009-07-30 09:48:09.929617473 -0400 -@@ -34,11 +34,17 @@ static inline void switch_mm(struct mm_s - struct task_struct *tsk) - { - unsigned cpu = smp_processor_id(); -+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) -+ int tlbstate = TLBSTATE_OK; -+#endif - - if (likely(prev != next)) { - /* stop flush ipis for the previous mm */ - cpu_clear(cpu, prev->cpu_vm_mask); - #ifdef CONFIG_SMP -+#ifdef CONFIG_X86_32 -+ tlbstate = percpu_read(cpu_tlbstate.state); -+#endif - percpu_write(cpu_tlbstate.state, TLBSTATE_OK); - percpu_write(cpu_tlbstate.active_mm, next); - #endif -@@ -52,6 +58,26 @@ static inline void switch_mm(struct mm_s - */ - if (unlikely(prev->context.ldt != next->context.ldt)) - load_LDT_nolock(&next->context); -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ if (!nx_enabled) { -+ smp_mb__before_clear_bit(); -+ cpu_clear(cpu, prev->context.cpu_user_cs_mask); -+ smp_mb__after_clear_bit(); -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+ } -+#endif -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base || -+ prev->context.user_cs_limit != next->context.user_cs_limit -+#ifdef CONFIG_SMP -+ || tlbstate != TLBSTATE_OK -+#endif -+ )) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } - #ifdef CONFIG_SMP - else { -@@ -65,6 +91,19 @@ static inline void switch_mm(struct mm_s - */ - load_cr3(next->pgd); - load_LDT_nolock(&next->context); -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!nx_enabled) -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+#endif -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && nx_enabled)) -+#endif -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } - } - #endif -diff -urNp linux-2.6.30.4/arch/x86/include/asm/mmu.h linux-2.6.30.4/arch/x86/include/asm/mmu.h ---- linux-2.6.30.4/arch/x86/include/asm/mmu.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/mmu.h 2009-07-30 09:48:09.929617473 -0400 -@@ -9,10 +9,23 @@ - * we put the segment information here. - */ - typedef struct { -- void *ldt; -+ struct desc_struct *ldt; - int size; - struct mutex lock; -- void *vdso; -+ unsigned long vdso; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ unsigned long user_cs_base; -+ unsigned long user_cs_limit; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpumask_t cpu_user_cs_mask; -+#endif -+ -+#endif -+#endif -+ - } mm_context_t; - - #ifdef CONFIG_SMP -diff -urNp linux-2.6.30.4/arch/x86/include/asm/module.h linux-2.6.30.4/arch/x86/include/asm/module.h ---- linux-2.6.30.4/arch/x86/include/asm/module.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/module.h 2009-07-30 11:10:48.877547128 -0400 -@@ -74,7 +74,12 @@ struct mod_arch_specific {}; - # else - # define MODULE_STACKSIZE "" - # endif --# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE -+# ifdef CONFIG_GRKERNSEC -+# define MODULE_GRSEC "GRSECURITY " -+# else -+# define MODULE_GRSEC "" -+# endif -+# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE MODULE_GRSEC - #endif - - #endif /* _ASM_X86_MODULE_H */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/page_32_types.h linux-2.6.30.4/arch/x86/include/asm/page_32_types.h ---- linux-2.6.30.4/arch/x86/include/asm/page_32_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/page_32_types.h 2009-07-30 09:48:09.930625879 -0400 -@@ -15,6 +15,23 @@ - */ - #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) - -+#ifdef CONFIG_PAX_KERNEXEC -+#ifndef __ASSEMBLY__ -+extern unsigned char MODULES_VADDR[]; -+extern unsigned char MODULES_END[]; -+extern unsigned char KERNEL_TEXT_OFFSET[]; -+#define ktla_ktva(addr) (addr + (unsigned long)KERNEL_TEXT_OFFSET) -+#define ktva_ktla(addr) (addr - (unsigned long)KERNEL_TEXT_OFFSET) -+#endif -+#else -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+#define CONFIG_ARCH_TRACK_EXEC_LIMIT 1 -+#endif -+ - #ifdef CONFIG_4KSTACKS - #define THREAD_ORDER 0 - #else -diff -urNp linux-2.6.30.4/arch/x86/include/asm/page_64_types.h linux-2.6.30.4/arch/x86/include/asm/page_64_types.h ---- linux-2.6.30.4/arch/x86/include/asm/page_64_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/page_64_types.h 2009-07-30 09:48:09.930625879 -0400 -@@ -47,6 +47,9 @@ - #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) - #define __START_KERNEL_map _AC(0xffffffff80000000, UL) - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - /* See Documentation/x86_64/mm.txt for a description of the memory map. */ - #define __PHYSICAL_MASK_SHIFT 46 - #define __VIRTUAL_MASK_SHIFT 48 -diff -urNp linux-2.6.30.4/arch/x86/include/asm/paravirt.h linux-2.6.30.4/arch/x86/include/asm/paravirt.h ---- linux-2.6.30.4/arch/x86/include/asm/paravirt.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/paravirt.h 2009-07-30 09:48:09.931536832 -0400 -@@ -1688,7 +1688,7 @@ static inline unsigned long __raw_local_ - - #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) - #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4) --#define PARA_INDIRECT(addr) *%cs:addr -+#define PARA_INDIRECT(addr) *%ss:addr - #endif - - #define INTERRUPT_RETURN \ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgalloc.h linux-2.6.30.4/arch/x86/include/asm/pgalloc.h ---- linux-2.6.30.4/arch/x86/include/asm/pgalloc.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgalloc.h 2009-07-30 09:48:09.931536832 -0400 -@@ -52,7 +52,7 @@ static inline void pmd_populate_kernel(s - pmd_t *pmd, pte_t *pte) - { - paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); -- set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); -+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE)); - } - - static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgtable-2level.h linux-2.6.30.4/arch/x86/include/asm/pgtable-2level.h ---- linux-2.6.30.4/arch/x86/include/asm/pgtable-2level.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgtable-2level.h 2009-07-30 09:48:09.931536832 -0400 -@@ -18,7 +18,19 @@ static inline void native_set_pte(pte_t - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - *pmdp = pmd; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgtable_32.h linux-2.6.30.4/arch/x86/include/asm/pgtable_32.h ---- linux-2.6.30.4/arch/x86/include/asm/pgtable_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgtable_32.h 2009-07-30 09:48:09.932929020 -0400 -@@ -26,8 +26,6 @@ - struct mm_struct; - struct vm_area_struct; - --extern pgd_t swapper_pg_dir[1024]; -- - static inline void pgtable_cache_init(void) { } - static inline void check_pgt_cache(void) { } - void paging_init(void); -@@ -48,6 +46,12 @@ extern void set_pmd_pfn(unsigned long, u - # include - #endif - -+extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -+#ifdef CONFIG_X86_PAE -+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD]; -+#endif -+extern pte_t swapper_pg_fixmap[PTRS_PER_PMD]; -+ - #if defined(CONFIG_HIGHPTE) - #define pte_offset_map(dir, address) \ - ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE0) + \ -@@ -80,6 +84,9 @@ do { \ - - #endif /* !__ASSEMBLY__ */ - -+#define HAVE_ARCH_UNMAPPED_AREA -+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN -+ - /* - * kern_addr_valid() is (1) for FLATMEM and (0) for - * SPARSEMEM and DISCONTIGMEM -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgtable-3level.h linux-2.6.30.4/arch/x86/include/asm/pgtable-3level.h ---- linux-2.6.30.4/arch/x86/include/asm/pgtable-3level.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgtable-3level.h 2009-07-30 09:48:09.931536832 -0400 -@@ -38,12 +38,36 @@ static inline void native_set_pte_atomic - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_set_pud(pud_t *pudp, pud_t pud) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - set_64bit((unsigned long long *)(pudp), native_pud_val(pud)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - /* -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgtable_64.h linux-2.6.30.4/arch/x86/include/asm/pgtable_64.h ---- linux-2.6.30.4/arch/x86/include/asm/pgtable_64.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgtable_64.h 2009-07-30 09:48:09.932929020 -0400 -@@ -16,9 +16,12 @@ - - extern pud_t level3_kernel_pgt[512]; - extern pud_t level3_ident_pgt[512]; -+extern pud_t level3_vmalloc_pgt[512]; -+extern pud_t level3_vmemmap_pgt[512]; - extern pmd_t level2_kernel_pgt[512]; - extern pmd_t level2_fixmap_pgt[512]; --extern pmd_t level2_ident_pgt[512]; -+extern pmd_t level2_ident_pgt[512*4]; -+extern pte_t level1_fixmap_pgt[512]; - extern pgd_t init_level4_pgt[]; - - #define swapper_pg_dir init_level4_pgt -@@ -78,7 +81,19 @@ static inline pte_t native_ptep_get_and_ - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - *pmdp = pmd; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_pmd_clear(pmd_t *pmd) -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgtable.h linux-2.6.30.4/arch/x86/include/asm/pgtable.h ---- linux-2.6.30.4/arch/x86/include/asm/pgtable.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgtable.h 2009-07-30 09:48:09.932929020 -0400 -@@ -87,6 +87,11 @@ static inline void __init paravirt_paget - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -+static inline int pte_user(pte_t pte) -+{ -+ return pte_val(pte) & _PAGE_USER; -+} -+ - static inline int pte_dirty(pte_t pte) - { - return pte_flags(pte) & _PAGE_DIRTY; -@@ -169,9 +174,29 @@ static inline pte_t pte_wrprotect(pte_t - return pte_clear_flags(pte, _PAGE_RW); - } - -+static inline pte_t pte_mkread(pte_t pte) -+{ -+ return __pte(pte_val(pte) | _PAGE_USER); -+} -+ - static inline pte_t pte_mkexec(pte_t pte) - { -- return pte_clear_flags(pte, _PAGE_NX); -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return pte_clear_flags(pte, _PAGE_NX); -+ else -+#endif -+ return pte_set_flags(pte, _PAGE_USER); -+} -+ -+static inline pte_t pte_exprotect(pte_t pte) -+{ -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return pte_set_flags(pte, _PAGE_NX); -+ else -+#endif -+ return pte_clear_flags(pte, _PAGE_USER); - } - - static inline pte_t pte_mkdirty(pte_t pte) -@@ -467,7 +492,7 @@ static inline pud_t *pud_offset(pgd_t *p - - static inline int pgd_bad(pgd_t pgd) - { -- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE; -+ return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pgd_none(pgd_t pgd) -@@ -606,7 +631,19 @@ static inline void ptep_set_wrprotect(st - */ - static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) - { -- memcpy(dst, src, count * sizeof(pgd_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ -+ memcpy(dst, src, count * sizeof(pgd_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/pgtable_types.h linux-2.6.30.4/arch/x86/include/asm/pgtable_types.h ---- linux-2.6.30.4/arch/x86/include/asm/pgtable_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/pgtable_types.h 2009-07-30 19:56:23.227966500 -0400 -@@ -16,12 +16,11 @@ - #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */ - #define _PAGE_BIT_PAT 7 /* on 4KB pages */ - #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ --#define _PAGE_BIT_UNUSED1 9 /* available for programmer */ -+#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */ - #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ - #define _PAGE_BIT_UNUSED3 11 - #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ --#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 --#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 -+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL - #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */ - - /* If _PAGE_BIT_PRESENT is clear, we use these: */ -@@ -39,7 +38,6 @@ - #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY) - #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE) - #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) --#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) - #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) - #define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3) - #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) -@@ -51,7 +49,7 @@ - #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) - #else --#define _PAGE_NX (_AT(pteval_t, 0)) -+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3) - #endif - - #define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE) -@@ -88,6 +86,9 @@ - #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_ACCESSED) - -+#define PAGE_READONLY_NOEXEC PAGE_READONLY -+#define PAGE_SHARED_NOEXEC PAGE_SHARED -+ - #define __PAGE_KERNEL_EXEC \ - (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) - #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX) -@@ -98,8 +99,8 @@ - #define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC) - #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) - #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD) --#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER) --#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT) -+#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER) -+#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_RO | _PAGE_PCD | _PAGE_PWT | _PAGE_USER) - #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) -@@ -158,8 +159,8 @@ - * bits are combined, this will alow user to access the high address mapped - * VDSO in the presence of CONFIG_COMPAT_VDSO - */ --#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ --#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ -+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ -+#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ - #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ - #endif - -@@ -272,7 +273,11 @@ static inline pteval_t pte_flags(pte_t p - typedef struct page *pgtable_t; - - extern pteval_t __supported_pte_mask; -+#ifdef CONFIG_X86_32 - extern int nx_enabled; -+#else -+#define nx_enabled (1) -+#endif - extern void set_nx(void); - - #define pgprot_writecombine pgprot_writecombine -diff -urNp linux-2.6.30.4/arch/x86/include/asm/processor.h linux-2.6.30.4/arch/x86/include/asm/processor.h ---- linux-2.6.30.4/arch/x86/include/asm/processor.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/processor.h 2009-07-30 09:48:09.933533479 -0400 -@@ -270,7 +270,7 @@ struct tss_struct { - - } ____cacheline_aligned; - --DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss); -+extern struct tss_struct init_tss[NR_CPUS]; - - /* - * Save the original ist values for checking stack pointers during debugging -@@ -866,8 +866,17 @@ static inline void spin_lock_prefetch(co - */ - #define TASK_SIZE PAGE_OFFSET - #define TASK_SIZE_MAX TASK_SIZE -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2) -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE) -+#else - #define STACK_TOP TASK_SIZE --#define STACK_TOP_MAX STACK_TOP -+#endif -+#define STACK_TOP_MAX TASK_SIZE - - #define INIT_THREAD { \ - .sp0 = sizeof(init_stack) + (long)&init_stack, \ -@@ -885,7 +894,7 @@ static inline void spin_lock_prefetch(co - */ - #define INIT_TSS { \ - .x86_tss = { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .ss0 = __KERNEL_DS, \ - .ss1 = __KERNEL_CS, \ - .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \ -@@ -896,11 +905,7 @@ static inline void spin_lock_prefetch(co - extern unsigned long thread_saved_pc(struct task_struct *tsk); - - #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) --#define KSTK_TOP(info) \ --({ \ -- unsigned long *__ptr = (unsigned long *)(info); \ -- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \ --}) -+#define KSTK_TOP(info) ((info)->task.thread.sp0) - - /* - * The below -8 is to reserve 8 bytes on top of the ring0 stack. -@@ -915,7 +920,7 @@ extern unsigned long thread_saved_pc(str - #define task_pt_regs(task) \ - ({ \ - struct pt_regs *__regs__; \ -- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \ -+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \ - __regs__ - 1; \ - }) - -@@ -931,7 +936,7 @@ extern unsigned long thread_saved_pc(str - * space during mmap's. - */ - #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \ -- 0xc0000000 : 0xFFFFe000) -+ 0xc0000000 : 0xFFFFf000) - - #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \ - IA32_PAGE_OFFSET : TASK_SIZE_MAX) -@@ -968,6 +973,10 @@ extern void start_thread(struct pt_regs - */ - #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3)) -+#endif -+ - #define KSTK_EIP(task) (task_pt_regs(task)->ip) - - /* Get/set a process' ability to use the timestamp counter instruction */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/ptrace.h linux-2.6.30.4/arch/x86/include/asm/ptrace.h ---- linux-2.6.30.4/arch/x86/include/asm/ptrace.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/ptrace.h 2009-07-30 09:48:09.933533479 -0400 -@@ -151,28 +151,29 @@ static inline unsigned long regs_return_ - } - - /* -- * user_mode_vm(regs) determines whether a register set came from user mode. -+ * user_mode(regs) determines whether a register set came from user mode. - * This is true if V8086 mode was enabled OR if the register set was from - * protected mode with RPL-3 CS value. This tricky test checks that with - * one comparison. Many places in the kernel can bypass this full check -- * if they have already ruled out V8086 mode, so user_mode(regs) can be used. -+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can -+ * be used. - */ --static inline int user_mode(struct pt_regs *regs) -+static inline int user_mode_novm(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL; - #else -- return !!(regs->cs & 3); -+ return !!(regs->cs & SEGMENT_RPL_MASK); - #endif - } - --static inline int user_mode_vm(struct pt_regs *regs) -+static inline int user_mode(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >= - USER_RPL; - #else -- return user_mode(regs); -+ return user_mode_novm(regs); - #endif - } - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/reboot.h linux-2.6.30.4/arch/x86/include/asm/reboot.h ---- linux-2.6.30.4/arch/x86/include/asm/reboot.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/reboot.h 2009-07-30 09:48:09.933533479 -0400 -@@ -18,7 +18,7 @@ extern struct machine_ops machine_ops; - - void native_machine_crash_shutdown(struct pt_regs *regs); - void native_machine_shutdown(void); --void machine_real_restart(const unsigned char *code, int length); -+void machine_real_restart(const unsigned char *code, unsigned int length); - - typedef void (*nmi_shootdown_cb)(int, struct die_args*); - void nmi_shootdown_cpus(nmi_shootdown_cb callback); -diff -urNp linux-2.6.30.4/arch/x86/include/asm/rwsem.h linux-2.6.30.4/arch/x86/include/asm/rwsem.h ---- linux-2.6.30.4/arch/x86/include/asm/rwsem.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/rwsem.h 2009-07-30 09:48:09.934667198 -0400 -@@ -106,10 +106,26 @@ static inline void __down_read(struct rw - { - asm volatile("# beginning down_read\n\t" - LOCK_PREFIX " incl (%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl (%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* adds 0x00000001, returns the old value */ -- " jns 1f\n" -+ " jns 2f\n" - " call call_rwsem_down_read_failed\n" -- "1:\n\t" -+ "2:\n\t" - "# ending down_read\n\t" - : "+m" (sem->count) - : "a" (sem) -@@ -124,13 +140,29 @@ static inline int __down_read_trylock(st - __s32 result, tmp; - asm volatile("# beginning __down_read_trylock\n\t" - " movl %0,%1\n\t" -- "1:\n\t" -+ "2:\n\t" - " movl %1,%2\n\t" - " addl %3,%2\n\t" -- " jle 2f\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "subl %3,%2\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ " jle 3f\n\t" - LOCK_PREFIX " cmpxchgl %2,%0\n\t" -- " jnz 1b\n\t" -- "2:\n\t" -+ " jnz 2b\n\t" -+ "3:\n\t" - "# ending __down_read_trylock\n\t" - : "+m" (sem->count), "=&a" (result), "=&r" (tmp) - : "i" (RWSEM_ACTIVE_READ_BIAS) -@@ -148,12 +180,28 @@ static inline void __down_write_nested(s - tmp = RWSEM_ACTIVE_WRITE_BIAS; - asm volatile("# beginning down_write\n\t" - LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %%edx,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* subtract 0x0000ffff, returns the old value */ - " testl %%edx,%%edx\n\t" - /* was the count 0 before? */ -- " jz 1f\n" -+ " jz 2f\n" - " call call_rwsem_down_write_failed\n" -- "1:\n" -+ "2:\n" - "# ending down_write" - : "+m" (sem->count), "=d" (tmp) - : "a" (sem), "1" (tmp) -@@ -186,10 +234,26 @@ static inline void __up_read(struct rw_s - __s32 tmp = -RWSEM_ACTIVE_READ_BIAS; - asm volatile("# beginning __up_read\n\t" - LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %%edx,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* subtracts 1, returns the old value */ -- " jns 1f\n\t" -+ " jns 2f\n\t" - " call call_rwsem_wake\n" -- "1:\n" -+ "2:\n" - "# ending __up_read\n" - : "+m" (sem->count), "=d" (tmp) - : "a" (sem), "1" (tmp) -@@ -204,11 +268,27 @@ static inline void __up_write(struct rw_ - asm volatile("# beginning __up_write\n\t" - " movl %2,%%edx\n\t" - LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %%edx,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* tries to transition - 0xffff0001 -> 0x00000000 */ -- " jz 1f\n" -+ " jz 2f\n" - " call call_rwsem_wake\n" -- "1:\n\t" -+ "2:\n\t" - "# ending __up_write\n" - : "+m" (sem->count) - : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS) -@@ -222,10 +302,26 @@ static inline void __downgrade_write(str - { - asm volatile("# beginning __downgrade_write\n\t" - LOCK_PREFIX " addl %2,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "subl %2,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* transitions 0xZZZZ0001 -> 0xYYYY0001 */ -- " jns 1f\n\t" -+ " jns 2f\n\t" - " call call_rwsem_downgrade_wake\n" -- "1:\n\t" -+ "2:\n\t" - "# ending __downgrade_write\n" - : "+m" (sem->count) - : "a" (sem), "i" (-RWSEM_WAITING_BIAS) -@@ -237,7 +333,23 @@ static inline void __downgrade_write(str - */ - static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (sem->count) - : "ir" (delta)); - } -@@ -249,7 +361,23 @@ static inline int rwsem_atomic_update(in - { - int tmp = delta; - -- asm volatile(LOCK_PREFIX "xadd %0,%1" -+ asm volatile(LOCK_PREFIX "xadd %0,%1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %0,%1\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+r" (tmp), "+m" (sem->count) - : : "memory"); - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/segment.h linux-2.6.30.4/arch/x86/include/asm/segment.h ---- linux-2.6.30.4/arch/x86/include/asm/segment.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/segment.h 2009-07-30 09:48:09.934667198 -0400 -@@ -88,7 +88,7 @@ - #define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14) - #define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8) - --#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15) -+#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15) - #ifdef CONFIG_SMP - #define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8) - #else -@@ -102,6 +102,12 @@ - #define __KERNEL_STACK_CANARY 0 - #endif - -+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE + 17) -+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8) -+ -+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE + 18) -+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8) -+ - #define GDT_ENTRY_DOUBLEFAULT_TSS 31 - - /* -@@ -139,7 +145,7 @@ - */ - - /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ --#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) -+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16) - - - #else -diff -urNp linux-2.6.30.4/arch/x86/include/asm/spinlock.h linux-2.6.30.4/arch/x86/include/asm/spinlock.h ---- linux-2.6.30.4/arch/x86/include/asm/spinlock.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/spinlock.h 2009-07-30 09:48:09.934667198 -0400 -@@ -249,18 +249,50 @@ static inline int __raw_write_can_lock(r - static inline void __raw_read_lock(raw_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" -- "jns 1f\n" -- "call __read_lock_failed\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" - "1:\n" -+ LOCK_PREFIX " addl $1,(%0)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "jns 2f\n" -+ "call __read_lock_failed\n\t" -+ "2:\n" - ::LOCK_PTR_REG (rw) : "memory"); - } - - static inline void __raw_write_lock(raw_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t" -- "jz 1f\n" -- "call __write_lock_failed\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" - "1:\n" -+ LOCK_PREFIX " addl %1,(%0)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "jz 2f\n" -+ "call __write_lock_failed\n\t" -+ "2:\n" - ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory"); - } - -@@ -286,12 +318,45 @@ static inline int __raw_write_trylock(ra - - static inline void __raw_read_unlock(raw_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory"); -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ :"+m" (rw->lock) : : "memory"); - } - - static inline void __raw_write_unlock(raw_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "addl %1, %0" -+ asm volatile(LOCK_PREFIX "addl %1, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory"); - } - -diff -urNp linux-2.6.30.4/arch/x86/include/asm/system.h linux-2.6.30.4/arch/x86/include/asm/system.h ---- linux-2.6.30.4/arch/x86/include/asm/system.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/system.h 2009-07-30 09:48:09.935636803 -0400 -@@ -227,7 +227,7 @@ static inline unsigned long get_limit(un - { - unsigned long __limit; - asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); -- return __limit + 1; -+ return __limit; - } - - static inline void native_clts(void) -@@ -353,6 +353,23 @@ static inline void native_wbinvd(void) - - #define stts() write_cr0(read_cr0() | X86_CR0_TS) - -+#define pax_open_kernel(cr0) \ -+do { \ -+ typecheck(unsigned long, cr0); \ -+ preempt_disable(); \ -+ barrier(); \ -+ cr0 = read_cr0(); \ -+ write_cr0(cr0 & ~X86_CR0_WP); \ -+} while (0) -+ -+#define pax_close_kernel(cr0) \ -+do { \ -+ typecheck(unsigned long, cr0); \ -+ write_cr0(cr0); \ -+ barrier(); \ -+ preempt_enable_no_resched(); \ -+} while (0) -+ - #endif /* __KERNEL__ */ - - static inline void clflush(volatile void *__p) -@@ -367,7 +384,7 @@ void enable_hlt(void); - - void cpu_idle_wait(void); - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - extern void free_init_pages(char *what, unsigned long begin, unsigned long end); - - void default_idle(void); -diff -urNp linux-2.6.30.4/arch/x86/include/asm/uaccess_32.h linux-2.6.30.4/arch/x86/include/asm/uaccess_32.h ---- linux-2.6.30.4/arch/x86/include/asm/uaccess_32.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/uaccess_32.h 2009-07-30 09:48:09.936413079 -0400 -@@ -44,6 +44,9 @@ unsigned long __must_check __copy_from_u - static __always_inline unsigned long __must_check - __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -62,6 +65,8 @@ __copy_to_user_inatomic(void __user *to, - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); - return __copy_to_user_ll(to, from, n); - } - -@@ -89,6 +94,9 @@ __copy_to_user(void __user *to, const vo - static __always_inline unsigned long - __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - /* Avoid zeroing the tail if the copy fails.. - * If 'n' is constant and 1, 2, or 4, we do still zero on a failure, - * but as the zeroing behaviour is only significant when n is not -@@ -138,6 +146,10 @@ static __always_inline unsigned long - __copy_from_user(void *to, const void __user *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -153,6 +165,8 @@ __copy_from_user(void *to, const void __ - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); - return __copy_from_user_ll(to, from, n); - } - -@@ -160,6 +174,10 @@ static __always_inline unsigned long __c - const void __user *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -182,14 +200,62 @@ static __always_inline unsigned long - __copy_from_user_inatomic_nocache(void *to, const void __user *from, - unsigned long n) - { -- return __copy_from_user_ll_nocache_nozero(to, from, n); -+ if ((long)n < 0) -+ return n; -+ -+ return __copy_from_user_ll_nocache_nozero(to, from, n); -+} -+ -+/** -+ * copy_to_user: - Copy a block of data into user space. -+ * @to: Destination address, in user space. -+ * @from: Source address, in kernel space. -+ * @n: Number of bytes to copy. -+ * -+ * Context: User context only. This function may sleep. -+ * -+ * Copy data from kernel space to user space. -+ * -+ * Returns number of bytes that could not be copied. -+ * On success, this will be zero. -+ */ -+static __always_inline unsigned long __must_check -+copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ if (access_ok(VERIFY_WRITE, to, n)) -+ n = __copy_to_user(to, from, n); -+ return n; -+} -+ -+/** -+ * copy_from_user: - Copy a block of data from user space. -+ * @to: Destination address, in kernel space. -+ * @from: Source address, in user space. -+ * @n: Number of bytes to copy. -+ * -+ * Context: User context only. This function may sleep. -+ * -+ * Copy data from user space to kernel space. -+ * -+ * Returns number of bytes that could not be copied. -+ * On success, this will be zero. -+ * -+ * If some data could not be copied, this function will pad the copied -+ * data to the requested size using zero bytes. -+ */ -+static __always_inline unsigned long __must_check -+copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ if (access_ok(VERIFY_READ, from, n)) -+ n = __copy_from_user(to, from, n); -+ else if ((long)n > 0) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ memset(to, 0, n); -+ } -+ return n; - } - --unsigned long __must_check copy_to_user(void __user *to, -- const void *from, unsigned long n); --unsigned long __must_check copy_from_user(void *to, -- const void __user *from, -- unsigned long n); - long __must_check strncpy_from_user(char *dst, const char __user *src, - long count); - long __must_check __strncpy_from_user(char *dst, -diff -urNp linux-2.6.30.4/arch/x86/include/asm/uaccess_64.h linux-2.6.30.4/arch/x86/include/asm/uaccess_64.h ---- linux-2.6.30.4/arch/x86/include/asm/uaccess_64.h 2009-07-30 20:32:40.365617606 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/uaccess_64.h 2009-07-30 20:32:47.927601167 -0400 -@@ -10,6 +10,8 @@ - #include - #include - -+#define set_fs(x) (current_thread_info()->addr_limit = (x)) -+ - /* - * Copy To/From Userspace - */ -@@ -19,20 +21,22 @@ __must_check unsigned long - copy_user_generic(void *to, const void *from, unsigned len); - - __must_check unsigned long --copy_to_user(void __user *to, const void *from, unsigned len); --__must_check unsigned long --copy_from_user(void *to, const void __user *from, unsigned len); --__must_check unsigned long - copy_in_user(void __user *to, const void __user *from, unsigned len); - - static __always_inline __must_check --int __copy_from_user(void *dst, const void __user *src, unsigned size) -+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned size) - { -- int ret = 0; -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -+ -+ if ((int)size < 0) -+ return size; -+ -+ if (!__builtin_constant_p(size)) { -+ check_object_size(dst, size, false); - return copy_user_generic(dst, (__force void *)src, size); -+ } - switch (size) { - case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src, - ret, "b", "b", "=q", 1); -@@ -70,13 +74,19 @@ int __copy_from_user(void *dst, const vo - } - - static __always_inline __must_check --int __copy_to_user(void __user *dst, const void *src, unsigned size) -+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned size) - { -- int ret = 0; -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -+ -+ if ((int)size < 0) -+ return size; -+ -+ if (!__builtin_constant_p(size)) { -+ check_object_size(src, size, true); - return copy_user_generic((__force void *)dst, src, size); -+ } - switch (size) { - case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst, - ret, "b", "b", "iq", 1); -@@ -114,11 +124,39 @@ int __copy_to_user(void __user *dst, con - } - - static __always_inline __must_check --int __copy_in_user(void __user *dst, const void __user *src, unsigned size) -+unsigned long copy_to_user(void __user *to, const void *from, unsigned len) - { -- int ret = 0; -+ if (access_ok(VERIFY_WRITE, to, len)) -+ len = __copy_to_user(to, from, len); -+ return len; -+} -+ -+static __always_inline __must_check -+unsigned long copy_from_user(void *to, const void __user *from, unsigned len) -+{ -+ if ((int)len < 0) -+ return len; -+ -+ if (access_ok(VERIFY_READ, from, len)) -+ len = __copy_from_user(to, from, len); -+ else if ((int)len > 0) { -+ if (!__builtin_constant_p(len)) -+ check_object_size(to, len, false); -+ memset(to, 0, len); -+ } -+ return len; -+} -+ -+static __always_inline __must_check -+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size) -+{ -+ unsigned ret = 0; - - might_fault(); -+ -+ if ((int)size < 0) -+ return size; -+ - if (!__builtin_constant_p(size)) - return copy_user_generic((__force void *)dst, - (__force void *)src, size); -@@ -179,30 +217,38 @@ __must_check unsigned long __clear_user( - __must_check long __copy_from_user_inatomic(void *dst, const void __user *src, - unsigned size); - --static __must_check __always_inline int -+static __must_check __always_inline unsigned long - __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) - { -+ if ((int)size < 0) -+ return size; -+ - return copy_user_generic((__force void *)dst, src, size); - } - --extern long __copy_user_nocache(void *dst, const void __user *src, -+extern unsigned long __copy_user_nocache(void *dst, const void __user *src, - unsigned size, int zerorest); - --static inline int --__copy_from_user_nocache(void *dst, const void __user *src, unsigned size) -+static inline unsigned long __copy_from_user_nocache(void *dst, const void __user *src, unsigned size) - { - might_sleep(); -+ -+ if ((int)size < 0) -+ return size; -+ - return __copy_user_nocache(dst, src, size, 1); - } - --static inline int --__copy_from_user_inatomic_nocache(void *dst, const void __user *src, -+static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src, - unsigned size) - { -+ if ((int)size < 0) -+ return size; -+ - return __copy_user_nocache(dst, src, size, 0); - } - --unsigned long -+extern unsigned long - copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest); - - #endif /* _ASM_X86_UACCESS_64_H */ -diff -urNp linux-2.6.30.4/arch/x86/include/asm/uaccess.h linux-2.6.30.4/arch/x86/include/asm/uaccess.h ---- linux-2.6.30.4/arch/x86/include/asm/uaccess.h 2009-07-30 20:32:40.364705510 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/uaccess.h 2009-08-09 07:48:47.926451868 -0400 -@@ -8,8 +8,10 @@ - #include - #include - #include -+#include - #include - #include -+#include - - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 -@@ -29,7 +31,12 @@ - - #define get_ds() (KERNEL_DS) - #define get_fs() (current_thread_info()->addr_limit) -+#ifdef CONFIG_X86_32 -+void __set_fs(mm_segment_t x, int cpu); -+void set_fs(mm_segment_t x); -+#else - #define set_fs(x) (current_thread_info()->addr_limit = (x)) -+#endif - - #define segment_eq(a, b) ((a).seg == (b).seg) - -@@ -183,13 +190,21 @@ extern int __get_user_bad(void); - asm volatile("call __put_user_" #size : "=a" (__ret_pu) \ - : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") - -- -+#ifdef CONFIG_X86_32 -+#define _ASM_LOAD_USER_DS(ds) "movw %w" #ds ",%%ds\n" -+#define _ASM_LOAD_KERNEL_DS "pushl %%ss; popl %%ds\n" -+#else -+#define _ASM_LOAD_USER_DS(ds) -+#define _ASM_LOAD_KERNEL_DS -+#endif - - #ifdef CONFIG_X86_32 - #define __put_user_asm_u64(x, addr, err, errret) \ -- asm volatile("1: movl %%eax,0(%2)\n" \ -- "2: movl %%edx,4(%2)\n" \ -+ asm volatile(_ASM_LOAD_USER_DS(5) \ -+ "1: movl %%eax,%%ds:0(%2)\n" \ -+ "2: movl %%edx,%%ds:4(%2)\n" \ - "3:\n" \ -+ _ASM_LOAD_KERNEL_DS \ - ".section .fixup,\"ax\"\n" \ - "4: movl %3,%0\n" \ - " jmp 3b\n" \ -@@ -197,15 +212,18 @@ extern int __get_user_bad(void); - _ASM_EXTABLE(1b, 4b) \ - _ASM_EXTABLE(2b, 4b) \ - : "=r" (err) \ -- : "A" (x), "r" (addr), "i" (errret), "0" (err)) -+ : "A" (x), "r" (addr), "i" (errret), "0" (err), \ -+ "r"(__USER_DS)) - - #define __put_user_asm_ex_u64(x, addr) \ -- asm volatile("1: movl %%eax,0(%1)\n" \ -- "2: movl %%edx,4(%1)\n" \ -+ asm volatile(_ASM_LOAD_USER_DS(2) \ -+ "1: movl %%eax,%%ds:0(%1)\n" \ -+ "2: movl %%edx,%%ds:4(%1)\n" \ - "3:\n" \ -+ _ASM_LOAD_KERNEL_DS \ - _ASM_EXTABLE(1b, 2b - 1b) \ - _ASM_EXTABLE(2b, 3b - 2b) \ -- : : "A" (x), "r" (addr)) -+ : : "A" (x), "r" (addr), "r"(__USER_DS)) - - #define __put_user_x8(x, ptr, __ret_pu) \ - asm volatile("call __put_user_8" : "=a" (__ret_pu) \ -@@ -374,16 +392,18 @@ do { \ - } while (0) - - #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -- asm volatile("1: mov"itype" %2,%"rtype"1\n" \ -+ asm volatile(_ASM_LOAD_USER_DS(5) \ -+ "1: mov"itype" %%ds:%2,%"rtype"1\n" \ - "2:\n" \ -+ _ASM_LOAD_KERNEL_DS \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ - " xor"itype" %"rtype"1,%"rtype"1\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ -- : "=r" (err), ltype(x) \ -- : "m" (__m(addr)), "i" (errret), "0" (err)) -+ : "=r" (err), ltype (x) \ -+ : "m" (__m(addr)), "i" (errret), "0" (err), "r"(__USER_DS)) - - #define __get_user_size_ex(x, ptr, size) \ - do { \ -@@ -407,10 +427,12 @@ do { \ - } while (0) - - #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ -- asm volatile("1: mov"itype" %1,%"rtype"0\n" \ -+ asm volatile(_ASM_LOAD_USER_DS(2) \ -+ "1: mov"itype" %%ds:%1,%"rtype"0\n" \ - "2:\n" \ -+ _ASM_LOAD_KERNEL_DS \ - _ASM_EXTABLE(1b, 2b - 1b) \ -- : ltype(x) : "m" (__m(addr))) -+ : ltype(x) : "m" (__m(addr)), "r"(__USER_DS)) - - #define __put_user_nocheck(x, ptr, size) \ - ({ \ -@@ -438,21 +460,26 @@ struct __large_struct { unsigned long bu - * aliasing issues. - */ - #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -- asm volatile("1: mov"itype" %"rtype"1,%2\n" \ -+ asm volatile(_ASM_LOAD_USER_DS(5) \ -+ "1: mov"itype" %"rtype"1,%%ds:%2\n" \ - "2:\n" \ -+ _ASM_LOAD_KERNEL_DS \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ - : "=r"(err) \ -- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err)) -+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err),\ -+ "r"(__USER_DS)) - - #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \ -- asm volatile("1: mov"itype" %"rtype"0,%1\n" \ -+ asm volatile(_ASM_LOAD_USER_DS(2) \ -+ "1: mov"itype" %"rtype"0,%%ds:%1\n" \ - "2:\n" \ -+ _ASM_LOAD_KERNEL_DS \ - _ASM_EXTABLE(1b, 2b - 1b) \ -- : : ltype(x), "m" (__m(addr))) -+ : : ltype(x), "m" (__m(addr)), "r"(__USER_DS)) - - /* - * uaccess_try and catch -@@ -567,6 +594,7 @@ extern struct movsl_mask { - - #define ARCH_HAS_NOCACHE_UACCESS 1 - -+#define ARCH_HAS_SORT_EXTABLE - #ifdef CONFIG_X86_32 - # include "uaccess_32.h" - #else -diff -urNp linux-2.6.30.4/arch/x86/include/asm/vgtod.h linux-2.6.30.4/arch/x86/include/asm/vgtod.h ---- linux-2.6.30.4/arch/x86/include/asm/vgtod.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/vgtod.h 2009-07-30 09:48:09.936413079 -0400 -@@ -14,6 +14,7 @@ struct vsyscall_gtod_data { - int sysctl_enabled; - struct timezone sys_tz; - struct { /* extract of a clocksource struct */ -+ char name[8]; - cycle_t (*vread)(void); - cycle_t cycle_last; - cycle_t mask; -diff -urNp linux-2.6.30.4/arch/x86/include/asm/vsyscall.h linux-2.6.30.4/arch/x86/include/asm/vsyscall.h ---- linux-2.6.30.4/arch/x86/include/asm/vsyscall.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/include/asm/vsyscall.h 2009-07-30 09:48:09.937413620 -0400 -@@ -15,9 +15,10 @@ enum vsyscall_num { - - #ifdef __KERNEL__ - #include -+#include -+#include - - #define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16))) --#define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16))) - - /* Definitions for CONFIG_GENERIC_TIME definitions */ - #define __section_vsyscall_gtod_data __attribute__ \ -@@ -31,7 +32,6 @@ enum vsyscall_num { - #define VGETCPU_LSL 2 - - extern int __vgetcpu_mode; --extern volatile unsigned long __jiffies; - - /* kernel space (writeable) */ - extern int vgetcpu_mode; -@@ -39,6 +39,9 @@ extern struct timezone sys_tz; - - extern void map_vsyscall(void); - -+extern int vgettimeofday(struct timeval * tv, struct timezone * tz); -+extern time_t vtime(time_t *t); -+extern long vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache); - #endif /* __KERNEL__ */ - - #endif /* _ASM_X86_VSYSCALL_H */ -diff -urNp linux-2.6.30.4/arch/x86/Kconfig linux-2.6.30.4/arch/x86/Kconfig ---- linux-2.6.30.4/arch/x86/Kconfig 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/Kconfig 2009-08-04 17:52:34.387861424 -0400 -@@ -345,6 +345,7 @@ config X86_VSMP - select PARAVIRT - depends on X86_64 && PCI - depends on X86_EXTENDED_PLATFORM -+ depends on !PAX_KERNEXEC - ---help--- - Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is - supposed to run on these EM64T-based machines. Only choose this option -@@ -464,6 +465,7 @@ config VMI - bool "VMI Guest support" - select PARAVIRT - depends on X86_32 -+ depends on !PAX_KERNEXEC - ---help--- - VMI provides a paravirtualized interface to the VMware ESX server - (it could be used by other hypervisors in theory too, but is not -@@ -474,6 +476,7 @@ config KVM_CLOCK - bool "KVM paravirtualized clock" - select PARAVIRT - select PARAVIRT_CLOCK -+ depends on !PAX_KERNEXEC - ---help--- - Turning on this option will allow you to run a paravirtualized clock - when running over the KVM hypervisor. Instead of relying on a PIT -@@ -484,6 +487,7 @@ config KVM_CLOCK - config KVM_GUEST - bool "KVM Guest support" - select PARAVIRT -+ depends on !PAX_KERNEXEC - ---help--- - This option enables various optimizations for running under the KVM - hypervisor. -@@ -492,6 +496,7 @@ source "arch/x86/lguest/Kconfig" - - config PARAVIRT - bool "Enable paravirtualization code" -+ depends on !PAX_KERNEXEC - ---help--- - This changes the kernel so it can modify itself when it is run - under a hypervisor, potentially improving performance significantly -@@ -1058,7 +1063,7 @@ config PAGE_OFFSET - hex - default 0xB0000000 if VMSPLIT_3G_OPT - default 0x80000000 if VMSPLIT_2G -- default 0x78000000 if VMSPLIT_2G_OPT -+ default 0x70000000 if VMSPLIT_2G_OPT - default 0x40000000 if VMSPLIT_1G - default 0xC0000000 - depends on X86_32 -@@ -1376,7 +1381,7 @@ config X86_PAT - - config EFI - bool "EFI runtime service support" -- depends on ACPI -+ depends on ACPI && !PAX_KERNEXEC - ---help--- - This enables the kernel to use EFI runtime services that are - available (such as the EFI variable services). -@@ -1466,9 +1471,7 @@ config KEXEC_JUMP - - config PHYSICAL_START - hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) -- default "0x1000000" if X86_NUMAQ -- default "0x200000" if X86_64 -- default "0x100000" -+ default "0x1000000" - ---help--- - This gives the physical address where the kernel is loaded. - -@@ -1527,8 +1530,7 @@ config RELOCATABLE - config PHYSICAL_ALIGN - hex - prompt "Alignment value to which kernel should be aligned" if X86_32 -- default "0x100000" if X86_32 -- default "0x200000" if X86_64 -+ default "0x200000" - range 0x2000 0x400000 - ---help--- - This value puts the alignment restrictions on physical address -@@ -1560,9 +1562,10 @@ config HOTPLUG_CPU - Say N if you want to disable CPU hotplug. - - config COMPAT_VDSO -- def_bool y -+ def_bool n - prompt "Compat VDSO support" - depends on X86_32 || IA32_EMULATION -+ depends on !PAX_NOEXEC && !PAX_MEMORY_UDEREF - ---help--- - Map the 32-bit VDSO to the predictable old-style address too. - ---help--- -diff -urNp linux-2.6.30.4/arch/x86/Kconfig.cpu linux-2.6.30.4/arch/x86/Kconfig.cpu ---- linux-2.6.30.4/arch/x86/Kconfig.cpu 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/Kconfig.cpu 2009-07-30 09:48:09.916592662 -0400 -@@ -331,7 +331,7 @@ config X86_PPRO_FENCE - - config X86_F00F_BUG - def_bool y -- depends on M586MMX || M586TSC || M586 || M486 || M386 -+ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC - - config X86_WP_WORKS_OK - def_bool y -@@ -351,7 +351,7 @@ config X86_POPAD_OK - - config X86_ALIGNMENT_16 - def_bool y -- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 -+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 - - config X86_INTEL_USERCOPY - def_bool y -@@ -397,7 +397,7 @@ config X86_CMPXCHG64 - # generates cmov. - config X86_CMOV - def_bool y -- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64) -+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64) - - config X86_MINIMUM_CPU_FAMILY - int -diff -urNp linux-2.6.30.4/arch/x86/Kconfig.debug linux-2.6.30.4/arch/x86/Kconfig.debug ---- linux-2.6.30.4/arch/x86/Kconfig.debug 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/Kconfig.debug 2009-07-30 09:48:09.916592662 -0400 -@@ -99,7 +99,7 @@ config X86_PTDUMP - config DEBUG_RODATA - bool "Write protect kernel read-only data structures" - default y -- depends on DEBUG_KERNEL -+ depends on DEBUG_KERNEL && BROKEN - ---help--- - Mark the kernel read-only data as write-protected in the pagetables, - in order to catch accidental (and incorrect) writes to such const -diff -urNp linux-2.6.30.4/arch/x86/kernel/acpi/boot.c linux-2.6.30.4/arch/x86/kernel/acpi/boot.c ---- linux-2.6.30.4/arch/x86/kernel/acpi/boot.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/acpi/boot.c 2009-07-30 09:48:09.938432163 -0400 -@@ -1737,7 +1737,7 @@ static struct dmi_system_id __initdata a - DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), - }, - }, -- {} -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - /* -diff -urNp linux-2.6.30.4/arch/x86/kernel/acpi/realmode/wakeup.S linux-2.6.30.4/arch/x86/kernel/acpi/realmode/wakeup.S ---- linux-2.6.30.4/arch/x86/kernel/acpi/realmode/wakeup.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/acpi/realmode/wakeup.S 2009-07-30 09:48:09.938432163 -0400 -@@ -104,7 +104,7 @@ _start: - movl %eax, %ecx - orl %edx, %ecx - jz 1f -- movl $0xc0000080, %ecx -+ mov $MSR_EFER, %ecx - wrmsr - 1: - -diff -urNp linux-2.6.30.4/arch/x86/kernel/acpi/sleep.c linux-2.6.30.4/arch/x86/kernel/acpi/sleep.c ---- linux-2.6.30.4/arch/x86/kernel/acpi/sleep.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/acpi/sleep.c 2009-07-30 09:48:09.938432163 -0400 -@@ -11,11 +11,12 @@ - #include - #include - #include -+#include - - #include "realmode/wakeup.h" - #include "sleep.h" - --unsigned long acpi_wakeup_address; -+unsigned long acpi_wakeup_address = 0x2000; - unsigned long acpi_realmode_flags; - - /* address in low memory of the wakeup routine. */ -@@ -37,6 +38,10 @@ int acpi_save_state_mem(void) - { - struct wakeup_header *header; - -+#if defined(CONFIG_64BIT) && defined(CONFIG_SMP) && defined(CONFIG_PAX_KERNEXEC) -+ unsigned long cr0; -+#endif -+ - if (!acpi_realmode) { - printk(KERN_ERR "Could not allocate memory during boot, " - "S3 disabled\n"); -@@ -99,8 +104,18 @@ int acpi_save_state_mem(void) - header->trampoline_segment = setup_trampoline() >> 4; - #ifdef CONFIG_SMP - stack_start.sp = temp_stack + sizeof(temp_stack); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - early_gdt_descr.address = - (unsigned long)get_cpu_gdt_table(smp_processor_id()); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - initial_gs = per_cpu_offset(smp_processor_id()); - #endif - initial_code = (unsigned long)wakeup_long64; -@@ -134,14 +149,8 @@ void __init acpi_reserve_bootmem(void) - return; - } - -- acpi_realmode = (unsigned long)alloc_bootmem_low(WAKEUP_SIZE); -- -- if (!acpi_realmode) { -- printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n"); -- return; -- } -- -- acpi_wakeup_address = virt_to_phys((void *)acpi_realmode); -+ reserve_early(acpi_wakeup_address, acpi_wakeup_address + WAKEUP_SIZE, "ACPI Wakeup Code"); -+ acpi_realmode = (unsigned long)__va(acpi_wakeup_address);; - } - - -diff -urNp linux-2.6.30.4/arch/x86/kernel/acpi/wakeup_32.S linux-2.6.30.4/arch/x86/kernel/acpi/wakeup_32.S ---- linux-2.6.30.4/arch/x86/kernel/acpi/wakeup_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/acpi/wakeup_32.S 2009-07-30 09:48:09.938432163 -0400 -@@ -30,13 +30,11 @@ wakeup_pmode_return: - # and restore the stack ... but you need gdt for this to work - movl saved_context_esp, %esp - -- movl %cs:saved_magic, %eax -- cmpl $0x12345678, %eax -+ cmpl $0x12345678, saved_magic - jne bogus_magic - - # jump to place where we left off -- movl saved_eip, %eax -- jmp *%eax -+ jmp *(saved_eip) - - bogus_magic: - jmp bogus_magic -diff -urNp linux-2.6.30.4/arch/x86/kernel/alternative.c linux-2.6.30.4/arch/x86/kernel/alternative.c ---- linux-2.6.30.4/arch/x86/kernel/alternative.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/alternative.c 2009-07-30 09:48:09.939725122 -0400 -@@ -400,7 +400,7 @@ void apply_paravirt(struct paravirt_patc - - BUG_ON(p->len > MAX_PATCH_LEN); - /* prep the buffer with the original instructions */ -- memcpy(insnbuf, p->instr, p->len); -+ memcpy(insnbuf, ktla_ktva(p->instr), p->len); - used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf, - (unsigned long)p->instr, p->len); - -@@ -485,11 +485,26 @@ void __init alternative_instructions(voi - * instructions. And on the local CPU you need to be protected again NMI or MCE - * handlers seeing an inconsistent instruction while you patch. - */ --void *text_poke_early(void *addr, const void *opcode, size_t len) -+void *__kprobes text_poke_early(void *addr, const void *opcode, size_t len) - { - unsigned long flags; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - local_irq_save(flags); -- memcpy(addr, opcode, len); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ memcpy(ktla_ktva(addr), opcode, len); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - local_irq_restore(flags); - sync_core(); - /* Could also do a CLFLUSH here to speed up CPU recovery; but -@@ -512,35 +527,27 @@ void *text_poke_early(void *addr, const - */ - void *__kprobes text_poke(void *addr, const void *opcode, size_t len) - { -- unsigned long flags; -- char *vaddr; -+ unsigned char *vaddr = ktla_ktva(addr); - struct page *pages[2]; -- int i; -+ size_t i; -+ -+ if (!core_kernel_text((unsigned long)addr) - -- if (!core_kernel_text((unsigned long)addr)) { -- pages[0] = vmalloc_to_page(addr); -- pages[1] = vmalloc_to_page(addr + PAGE_SIZE); -+#if defined(CONFIG_X86_32) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ && (vaddr < MODULES_VADDR || MODULES_END < vaddr) -+#endif -+ -+ ) { -+ pages[0] = vmalloc_to_page(vaddr); -+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE); - } else { -- pages[0] = virt_to_page(addr); -+ pages[0] = virt_to_page(vaddr); - WARN_ON(!PageReserved(pages[0])); -- pages[1] = virt_to_page(addr + PAGE_SIZE); -+ pages[1] = virt_to_page(vaddr + PAGE_SIZE); - } - BUG_ON(!pages[0]); -- local_irq_save(flags); -- set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0])); -- if (pages[1]) -- set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1])); -- vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0); -- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len); -- clear_fixmap(FIX_TEXT_POKE0); -- if (pages[1]) -- clear_fixmap(FIX_TEXT_POKE1); -- local_flush_tlb(); -- sync_core(); -- /* Could also do a CLFLUSH here to speed up CPU recovery; but -- that causes hangs on some VIA CPUs. */ -+ text_poke_early(addr, opcode, len); - for (i = 0; i < len; i++) -- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]); -- local_irq_restore(flags); -+ BUG_ON(((char *)vaddr)[i] != ((char *)opcode)[i]); - return addr; - } -diff -urNp linux-2.6.30.4/arch/x86/kernel/apm_32.c linux-2.6.30.4/arch/x86/kernel/apm_32.c ---- linux-2.6.30.4/arch/x86/kernel/apm_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/apm_32.c 2009-07-30 09:48:09.939725122 -0400 -@@ -403,7 +403,7 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitq - static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue); - static struct apm_user *user_list; - static DEFINE_SPINLOCK(user_list_lock); --static const struct desc_struct bad_bios_desc = { { { 0, 0x00409200 } } }; -+static const struct desc_struct bad_bios_desc = { { { 0, 0x00409300 } } }; - - static const char driver_version[] = "1.16ac"; /* no spaces */ - -@@ -576,12 +576,25 @@ static long __apm_bios_call(void *_call) - struct desc_struct *gdt; - struct apm_bios_call *call = _call; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - cpu = get_cpu(); - BUG_ON(cpu != 0); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = bad_bios_desc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - apm_irq_save(flags); - APM_DO_SAVE_SEGS; - apm_bios_call_asm(call->func, call->ebx, call->ecx, -@@ -589,7 +602,17 @@ static long __apm_bios_call(void *_call) - &call->esi); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = save_desc_40; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - put_cpu(); - - return call->eax & 0xff; -@@ -652,19 +675,42 @@ static long __apm_bios_call_simple(void - struct desc_struct *gdt; - struct apm_bios_call *call = _call; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - cpu = get_cpu(); - BUG_ON(cpu != 0); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = bad_bios_desc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - apm_irq_save(flags); - APM_DO_SAVE_SEGS; - error = apm_bios_call_simple_asm(call->func, call->ebx, call->ecx, - &call->eax); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = save_desc_40; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - put_cpu(); - return error; - } -@@ -967,7 +1013,7 @@ recalc: - - static void apm_power_off(void) - { -- unsigned char po_bios_call[] = { -+ const unsigned char po_bios_call[] = { - 0xb8, 0x00, 0x10, /* movw $0x1000,ax */ - 0x8e, 0xd0, /* movw ax,ss */ - 0xbc, 0x00, 0xf0, /* movw $0xf000,sp */ -@@ -1925,7 +1971,10 @@ static const struct file_operations apm_ - static struct miscdevice apm_device = { - APM_MINOR_DEV, - "apm_bios", -- &apm_bios_fops -+ &apm_bios_fops, -+ {NULL, NULL}, -+ NULL, -+ NULL - }; - - -@@ -2246,7 +2295,7 @@ static struct dmi_system_id __initdata a - { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), }, - }, - -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - /* -@@ -2264,6 +2313,10 @@ static int __init apm_init(void) - struct desc_struct *gdt; - int err; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - dmi_check_system(apm_dmi_table); - - if (apm_info.bios.version == 0 || paravirt_enabled() || machine_is_olpc()) { -@@ -2337,9 +2390,18 @@ static int __init apm_init(void) - * This is for buggy BIOS's that refer to (real mode) segment 0x40 - * even though they are called in protected mode. - */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_base(bad_bios_desc, __va((unsigned long)0x40 << 4)); - _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4)); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * Set up the long jump entry point to the APM BIOS, which is called - * from inline assembly. -@@ -2358,6 +2420,11 @@ static int __init apm_init(void) - * code to that CPU. - */ - gdt = get_cpu_gdt_table(0); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_base(gdt[APM_CS >> 3], - __va((unsigned long)apm_info.bios.cseg << 4)); - set_base(gdt[APM_CS_16 >> 3], -@@ -2365,6 +2432,10 @@ static int __init apm_init(void) - set_base(gdt[APM_DS >> 3], - __va((unsigned long)apm_info.bios.dseg << 4)); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - proc_create("apm", 0, NULL, &apm_file_ops); - - kapmd_task = kthread_create(apm, NULL, "kapmd"); -diff -urNp linux-2.6.30.4/arch/x86/kernel/asm-offsets_32.c linux-2.6.30.4/arch/x86/kernel/asm-offsets_32.c ---- linux-2.6.30.4/arch/x86/kernel/asm-offsets_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/asm-offsets_32.c 2009-07-30 09:48:09.939725122 -0400 -@@ -115,6 +115,7 @@ void foo(void) - OFFSET(PV_CPU_iret, pv_cpu_ops, iret); - OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); - OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); -+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0); - #endif - - #ifdef CONFIG_XEN -diff -urNp linux-2.6.30.4/arch/x86/kernel/asm-offsets_64.c linux-2.6.30.4/arch/x86/kernel/asm-offsets_64.c ---- linux-2.6.30.4/arch/x86/kernel/asm-offsets_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/asm-offsets_64.c 2009-07-30 09:48:09.939725122 -0400 -@@ -114,6 +114,7 @@ int main(void) - ENTRY(cr8); - BLANK(); - #undef ENTRY -+ DEFINE(TSS_size, sizeof(struct tss_struct)); - DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist)); - BLANK(); - DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); -diff -urNp linux-2.6.30.4/arch/x86/kernel/cpu/common.c linux-2.6.30.4/arch/x86/kernel/cpu/common.c ---- linux-2.6.30.4/arch/x86/kernel/cpu/common.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/cpu/common.c 2009-07-30 09:48:09.941068037 -0400 -@@ -60,60 +60,6 @@ void __init setup_cpu_local_masks(void) - - static const struct cpu_dev *this_cpu __cpuinitdata; - --DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { --#ifdef CONFIG_X86_64 -- /* -- * We need valid kernel segments for data and code in long mode too -- * IRET will check the segment types kkeil 2000/10/28 -- * Also sysret mandates a special GDT layout -- * -- * TLS descriptors are currently at a different place compared to i386. -- * Hopefully nobody expects them at a fixed place (Wine?) -- */ -- [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } }, -- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } }, -- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } }, -- [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } }, -- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } }, -- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } }, --#else -- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00cf9a00 } } }, -- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9200 } } }, -- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00cffa00 } } }, -- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff200 } } }, -- /* -- * Segments used for calling PnP BIOS have byte granularity. -- * They code segments and data segments have fixed 64k limits, -- * the transfer segment sizes are set at run time. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_PNPBIOS_CS32] = { { { 0x0000ffff, 0x00409a00 } } }, -- /* 16-bit code */ -- [GDT_ENTRY_PNPBIOS_CS16] = { { { 0x0000ffff, 0x00009a00 } } }, -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_DS] = { { { 0x0000ffff, 0x00009200 } } }, -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS1] = { { { 0x00000000, 0x00009200 } } }, -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS2] = { { { 0x00000000, 0x00009200 } } }, -- /* -- * The APM segments have byte granularity and their bases -- * are set at run time. All have 64k limits. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_APMBIOS_BASE] = { { { 0x0000ffff, 0x00409a00 } } }, -- /* 16-bit code */ -- [GDT_ENTRY_APMBIOS_BASE+1] = { { { 0x0000ffff, 0x00009a00 } } }, -- /* data */ -- [GDT_ENTRY_APMBIOS_BASE+2] = { { { 0x0000ffff, 0x00409200 } } }, -- -- [GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } }, -- [GDT_ENTRY_PERCPU] = { { { 0x0000ffff, 0x00cf9200 } } }, -- GDT_STACK_CANARY_INIT --#endif --} }; --EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); -- - static int __init x86_xsave_setup(char *s) - { - setup_clear_cpu_cap(X86_FEATURE_XSAVE); -@@ -320,7 +266,7 @@ void switch_to_new_gdt(int cpu) - { - struct desc_ptr gdt_descr; - -- gdt_descr.address = (long)get_cpu_gdt_table(cpu); -+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - /* Reload the per-cpu base */ -@@ -796,6 +742,10 @@ static void __cpuinit identify_cpu(struc - /* Filter out anything that depends on CPUID levels we don't have */ - filter_cpuid_features(c, true); - -+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) -+ setup_clear_cpu_cap(X86_FEATURE_SEP); -+#endif -+ - /* If the model name is still unset, do table lookup. */ - if (!c->x86_model_id[0]) { - const char *p; -@@ -972,7 +922,7 @@ static __init int setup_disablecpuid(cha - __setup("clearcpuid=", setup_disablecpuid); - - #ifdef CONFIG_X86_64 --struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table }; -+struct desc_ptr idt_descr __read_only = { 256 * 16 - 1, (unsigned long) idt_table }; - - DEFINE_PER_CPU_FIRST(union irq_stack_union, - irq_stack_union) __aligned(PAGE_SIZE); -@@ -1082,7 +1032,7 @@ void __cpuinit cpu_init(void) - int i; - - cpu = stack_smp_processor_id(); -- t = &per_cpu(init_tss, cpu); -+ t = init_tss + cpu; - orig_ist = &per_cpu(orig_ist, cpu); - - #ifdef CONFIG_NUMA -@@ -1180,7 +1130,7 @@ void __cpuinit cpu_init(void) - { - int cpu = smp_processor_id(); - struct task_struct *curr = current; -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - struct thread_struct *thread = &curr->thread; - - if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) { -diff -urNp linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c ---- linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-07-30 09:48:09.941068037 -0400 -@@ -590,7 +590,7 @@ static const struct dmi_system_id sw_any - DMI_MATCH(DMI_PRODUCT_NAME, "X6DLP"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -diff -urNp linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c ---- linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-07-30 09:48:09.941727851 -0400 -@@ -225,7 +225,7 @@ static struct cpu_model models[] = - { &cpu_ids[CPU_MP4HT_D0], NULL, 0, NULL }, - { &cpu_ids[CPU_MP4HT_E0], NULL, 0, NULL }, - -- { NULL, } -+ { NULL, NULL, 0, NULL} - }; - #undef _BANIAS - #undef BANIAS -diff -urNp linux-2.6.30.4/arch/x86/kernel/cpu/intel.c linux-2.6.30.4/arch/x86/kernel/cpu/intel.c ---- linux-2.6.30.4/arch/x86/kernel/cpu/intel.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/cpu/intel.c 2009-07-30 09:48:09.941727851 -0400 -@@ -117,7 +117,7 @@ static void __cpuinit trap_init_f00f_bug - * Update the IDT descriptor and reload the IDT so that - * it uses the read-only mapped virtual address. - */ -- idt_descr.address = fix_to_virt(FIX_F00F_IDT); -+ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT); - load_idt(&idt_descr); - } - #endif -diff -urNp linux-2.6.30.4/arch/x86/kernel/cpu/mcheck/mce_64.c linux-2.6.30.4/arch/x86/kernel/cpu/mcheck/mce_64.c ---- linux-2.6.30.4/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-07-30 09:48:09.941727851 -0400 -@@ -830,6 +830,7 @@ static struct miscdevice mce_log_device - MISC_MCELOG_MINOR, - "mcelog", - &mce_chrdev_ops, -+ {NULL, NULL}, NULL, NULL - }; - - /* -diff -urNp linux-2.6.30.4/arch/x86/kernel/cpu/mtrr/generic.c linux-2.6.30.4/arch/x86/kernel/cpu/mtrr/generic.c ---- linux-2.6.30.4/arch/x86/kernel/cpu/mtrr/generic.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/cpu/mtrr/generic.c 2009-07-30 09:48:09.942991706 -0400 -@@ -23,14 +23,14 @@ static struct fixed_range_block fixed_ra - { MTRRfix64K_00000_MSR, 1 }, /* one 64k MTRR */ - { MTRRfix16K_80000_MSR, 2 }, /* two 16k MTRRs */ - { MTRRfix4K_C0000_MSR, 8 }, /* eight 4k MTRRs */ -- {} -+ { 0, 0 } - }; - - static unsigned long smp_changes_mask; - static int mtrr_state_set; - u64 mtrr_tom2; - --struct mtrr_state_type mtrr_state = {}; -+struct mtrr_state_type mtrr_state; - EXPORT_SYMBOL_GPL(mtrr_state); - - /** -diff -urNp linux-2.6.30.4/arch/x86/kernel/crash.c linux-2.6.30.4/arch/x86/kernel/crash.c ---- linux-2.6.30.4/arch/x86/kernel/crash.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/crash.c 2009-07-30 09:48:09.942991706 -0400 -@@ -41,7 +41,7 @@ static void kdump_nmi_callback(int cpu, - regs = args->regs; - - #ifdef CONFIG_X86_32 -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - crash_fixup_ss_esp(&fixed_regs, regs); - regs = &fixed_regs; - } -diff -urNp linux-2.6.30.4/arch/x86/kernel/doublefault_32.c linux-2.6.30.4/arch/x86/kernel/doublefault_32.c ---- linux-2.6.30.4/arch/x86/kernel/doublefault_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/doublefault_32.c 2009-07-30 09:48:09.942991706 -0400 -@@ -11,7 +11,7 @@ - - #define DOUBLEFAULT_STACKSIZE (1024) - static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE]; --#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE) -+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2) - - #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM) - -@@ -21,7 +21,7 @@ static void doublefault_fn(void) - unsigned long gdt, tss; - - store_gdt(&gdt_desc); -- gdt = gdt_desc.address; -+ gdt = (unsigned long)gdt_desc.address; - - printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); - -@@ -60,10 +60,10 @@ struct tss_struct doublefault_tss __cach - /* 0x2 bit is always set */ - .flags = X86_EFLAGS_SF | 0x2, - .sp = STACK_START, -- .es = __USER_DS, -+ .es = __KERNEL_DS, - .cs = __KERNEL_CS, - .ss = __KERNEL_DS, -- .ds = __USER_DS, -+ .ds = __KERNEL_DS, - .fs = __KERNEL_PERCPU, - - .__cr3 = __pa_nodebug(swapper_pg_dir), -diff -urNp linux-2.6.30.4/arch/x86/kernel/dumpstack_32.c linux-2.6.30.4/arch/x86/kernel/dumpstack_32.c ---- linux-2.6.30.4/arch/x86/kernel/dumpstack_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/dumpstack_32.c 2009-07-30 09:48:09.943696998 -0400 -@@ -107,11 +107,12 @@ void show_registers(struct pt_regs *regs - * When in-kernel, we also print out the stack and code at the - * time of the fault.. - */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned int code_prologue = code_bytes * 43 / 64; - unsigned int code_len = code_bytes; - unsigned char c; - u8 *ip; -+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]); - - printk(KERN_EMERG "Stack:\n"); - show_stack_log_lvl(NULL, regs, ®s->sp, -@@ -119,10 +120,10 @@ void show_registers(struct pt_regs *regs - - printk(KERN_EMERG "Code: "); - -- ip = (u8 *)regs->ip - code_prologue; -+ ip = (u8 *)regs->ip - code_prologue + cs_base; - if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { - /* try starting at IP */ -- ip = (u8 *)regs->ip; -+ ip = (u8 *)regs->ip + cs_base; - code_len = code_len - code_prologue + 1; - } - for (i = 0; i < code_len; i++, ip++) { -@@ -131,7 +132,7 @@ void show_registers(struct pt_regs *regs - printk(" Bad EIP value."); - break; - } -- if (ip == (u8 *)regs->ip) -+ if (ip == (u8 *)regs->ip + cs_base) - printk("<%02x> ", c); - else - printk("%02x ", c); -@@ -144,6 +145,7 @@ int is_valid_bugaddr(unsigned long ip) - { - unsigned short ud2; - -+ ip = ktla_ktva(ip); - if (ip < PAGE_OFFSET) - return 0; - if (probe_kernel_address((unsigned short *)ip, ud2)) -diff -urNp linux-2.6.30.4/arch/x86/kernel/dumpstack.c linux-2.6.30.4/arch/x86/kernel/dumpstack.c ---- linux-2.6.30.4/arch/x86/kernel/dumpstack.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/dumpstack.c 2009-07-30 09:48:09.942991706 -0400 -@@ -180,7 +180,7 @@ void dump_stack(void) - #endif - - printk("Pid: %d, comm: %.20s %s %s %.*s\n", -- current->pid, current->comm, print_tainted(), -+ task_pid_nr(current), current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); -@@ -241,7 +241,7 @@ void __kprobes oops_end(unsigned long fl - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -- do_exit(signr); -+ do_group_exit(signr); - } - - int __kprobes __die(const char *str, struct pt_regs *regs, long err) -@@ -295,7 +295,7 @@ void die(const char *str, struct pt_regs - unsigned long flags = oops_begin(); - int sig = SIGSEGV; - -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - report_bug(regs->ip, regs); - - if (__die(str, regs, err)) -diff -urNp linux-2.6.30.4/arch/x86/kernel/e820.c linux-2.6.30.4/arch/x86/kernel/e820.c ---- linux-2.6.30.4/arch/x86/kernel/e820.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/e820.c 2009-07-30 09:48:09.943696998 -0400 -@@ -739,7 +739,10 @@ struct early_res { - }; - static struct early_res early_res[MAX_EARLY_RES] __initdata = { - { 0, PAGE_SIZE, "BIOS data page" }, /* BIOS data page */ -- {} -+#ifdef CONFIG_VM86 -+ { PAGE_SIZE, ISA_START_ADDRESS, "V86 mode memory", 1 }, -+#endif -+ { 0, 0, {0}, 0 } - }; - - static int __init find_overlapped_early(u64 start, u64 end) -diff -urNp linux-2.6.30.4/arch/x86/kernel/efi_32.c linux-2.6.30.4/arch/x86/kernel/efi_32.c ---- linux-2.6.30.4/arch/x86/kernel/efi_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/efi_32.c 2009-07-30 09:48:09.943696998 -0400 -@@ -38,70 +38,38 @@ - */ - - static unsigned long efi_rt_eflags; --static pgd_t efi_bak_pg_dir_pointer[2]; -+static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS]; - --void efi_call_phys_prelog(void) -+void __init efi_call_phys_prelog(void) - { -- unsigned long cr4; -- unsigned long temp; - struct desc_ptr gdt_descr; - - local_irq_save(efi_rt_eflags); - -- /* -- * If I don't have PAE, I should just duplicate two entries in page -- * directory. If I have PAE, I just need to duplicate one entry in -- * page directory. -- */ -- cr4 = read_cr4_safe(); - -- if (cr4 & X86_CR4_PAE) { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- swapper_pg_dir[0].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- } else { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- efi_bak_pg_dir_pointer[1].pgd = -- swapper_pg_dir[pgd_index(0x400000)].pgd; -- swapper_pg_dir[pgd_index(0)].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- temp = PAGE_OFFSET + 0x400000; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- swapper_pg_dir[pgd_index(temp)].pgd; -- } -+ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS); -+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); - - /* - * After the lock is released, the original page table is restored. - */ - __flush_tlb_all(); - -- gdt_descr.address = __pa(get_cpu_gdt_table(0)); -+ gdt_descr.address = (struct desc_struct *)__pa(get_cpu_gdt_table(0)); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - } - --void efi_call_phys_epilog(void) -+void __init efi_call_phys_epilog(void) - { -- unsigned long cr4; - struct desc_ptr gdt_descr; - -- gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); -+ gdt_descr.address = get_cpu_gdt_table(0); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - -- cr4 = read_cr4_safe(); -- -- if (cr4 & X86_CR4_PAE) { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- } else { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- efi_bak_pg_dir_pointer[1].pgd; -- } -+ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS); - - /* - * After the lock is released, the original page table is restored. -diff -urNp linux-2.6.30.4/arch/x86/kernel/efi_stub_32.S linux-2.6.30.4/arch/x86/kernel/efi_stub_32.S ---- linux-2.6.30.4/arch/x86/kernel/efi_stub_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/efi_stub_32.S 2009-07-30 09:48:09.944948217 -0400 -@@ -6,6 +6,7 @@ - */ - - #include -+#include - #include - - /* -@@ -20,7 +21,7 @@ - * service functions will comply with gcc calling convention, too. - */ - --.text -+__INIT - ENTRY(efi_call_phys) - /* - * 0. The function can only be called in Linux kernel. So CS has been -@@ -36,9 +37,7 @@ ENTRY(efi_call_phys) - * The mapping of lower virtual memory has been created in prelog and - * epilog. - */ -- movl $1f, %edx -- subl $__PAGE_OFFSET, %edx -- jmp *%edx -+ jmp 1f-__PAGE_OFFSET - 1: - - /* -@@ -47,14 +46,8 @@ ENTRY(efi_call_phys) - * parameter 2, ..., param n. To make things easy, we save the return - * address of efi_call_phys in a global variable. - */ -- popl %edx -- movl %edx, saved_return_addr -- /* get the function pointer into ECX*/ -- popl %ecx -- movl %ecx, efi_rt_function_ptr -- movl $2f, %edx -- subl $__PAGE_OFFSET, %edx -- pushl %edx -+ popl (saved_return_addr) -+ popl (efi_rt_function_ptr) - - /* - * 3. Clear PG bit in %CR0. -@@ -73,9 +66,8 @@ ENTRY(efi_call_phys) - /* - * 5. Call the physical function. - */ -- jmp *%ecx -+ call *(efi_rt_function_ptr-__PAGE_OFFSET) - --2: - /* - * 6. After EFI runtime service returns, control will return to - * following instruction. We'd better readjust stack pointer first. -@@ -88,35 +80,28 @@ ENTRY(efi_call_phys) - movl %cr0, %edx - orl $0x80000000, %edx - movl %edx, %cr0 -- jmp 1f --1: -+ - /* - * 8. Now restore the virtual mode from flat mode by - * adding EIP with PAGE_OFFSET. - */ -- movl $1f, %edx -- jmp *%edx -+ jmp 1f+__PAGE_OFFSET - 1: - - /* - * 9. Balance the stack. And because EAX contain the return value, - * we'd better not clobber it. - */ -- leal efi_rt_function_ptr, %edx -- movl (%edx), %ecx -- pushl %ecx -+ pushl (efi_rt_function_ptr) - - /* -- * 10. Push the saved return address onto the stack and return. -+ * 10. Return to the saved return address. - */ -- leal saved_return_addr, %edx -- movl (%edx), %ecx -- pushl %ecx -- ret -+ jmpl *(saved_return_addr) - ENDPROC(efi_call_phys) - .previous - --.data -+__INITDATA - saved_return_addr: - .long 0 - efi_rt_function_ptr: -diff -urNp linux-2.6.30.4/arch/x86/kernel/entry_32.S linux-2.6.30.4/arch/x86/kernel/entry_32.S ---- linux-2.6.30.4/arch/x86/kernel/entry_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/entry_32.S 2009-08-12 21:15:21.098460043 -0400 -@@ -192,7 +192,7 @@ - - #endif /* CONFIG_X86_32_LAZY_GS */ - --.macro SAVE_ALL -+.macro __SAVE_ALL _DS - cld - PUSH_GS - pushl %fs -@@ -225,7 +225,7 @@ - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 - CFI_REL_OFFSET ebx, 0 -- movl $(__USER_DS), %edx -+ movl $\_DS, %edx - movl %edx, %ds - movl %edx, %es - movl $(__KERNEL_PERCPU), %edx -@@ -233,6 +233,21 @@ - SET_KERNEL_GS %edx - .endm - -+.macro SAVE_ALL -+#ifdef CONFIG_PAX_KERNEXEC -+ __SAVE_ALL __KERNEL_DS -+ GET_CR0_INTO_EDX; -+ movl %edx, %esi; -+ orl $X86_CR0_WP, %edx; -+ xorl %edx, %esi; -+ SET_CR0_FROM_EDX -+#elif defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) -+ __SAVE_ALL __KERNEL_DS -+#else -+ __SAVE_ALL __USER_DS -+#endif -+.endm -+ - .macro RESTORE_INT_REGS - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 -@@ -330,6 +345,11 @@ ENTRY(ret_from_fork) - CFI_ADJUST_CFA_OFFSET 4 - popfl - CFI_ADJUST_CFA_OFFSET -4 -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ xorl %esi, %esi -+#endif -+ - jmp syscall_exit - CFI_ENDPROC - END(ret_from_fork) -@@ -353,7 +373,17 @@ check_userspace: - movb PT_CS(%esp), %al - andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax - cmpl $USER_RPL, %eax -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ jae resume_userspace -+ -+ GET_CR0_INTO_EDX -+ xorl %esi, %edx -+ SET_CR0_FROM_EDX -+ jmp resume_kernel -+#else - jb resume_kernel # not returning to v8086 or userspace -+#endif - - ENTRY(resume_userspace) - LOCKDEP_SYS_EXIT -@@ -415,10 +445,9 @@ sysenter_past_esp: - /*CFI_REL_OFFSET cs, 0*/ - /* - * Push current_thread_info()->sysenter_return to the stack. -- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words -- * pushed above; +8 corresponds to copy_thread's esp0 setting. - */ -- pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp) -+ GET_THREAD_INFO(%ebp) -+ pushl TI_sysenter_return(%ebp) - CFI_ADJUST_CFA_OFFSET 4 - CFI_REL_OFFSET eip, 0 - -@@ -431,9 +460,19 @@ sysenter_past_esp: - * Load the potential sixth argument from user stack. - * Careful about security. - */ -+ movl PT_OLDESP(%esp),%ebp -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov PT_OLDSS(%esp),%ds -+1: movl %ds:(%ebp),%ebp -+ push %ss -+ pop %ds -+#else - cmpl $__PAGE_OFFSET-3,%ebp - jae syscall_fault - 1: movl (%ebp),%ebp -+#endif -+ - movl %ebp,PT_EBP(%esp) - .section __ex_table,"a" - .align 4 -@@ -456,12 +495,23 @@ sysenter_do_call: - testl $_TIF_ALLWORK_MASK, %ecx - jne sysexit_audit - sysenter_exit: -+ -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushl %eax -+ CFI_ADJUST_CFA_OFFSET 4 -+ call pax_randomize_kstack -+ popl %eax -+ CFI_ADJUST_CFA_OFFSET -4 -+#endif -+ - /* if something modifies registers it must also disable sysexit */ - movl PT_EIP(%esp), %edx - movl PT_OLDESP(%esp), %ecx - xorl %ebp,%ebp - TRACE_IRQS_ON - 1: mov PT_FS(%esp), %fs -+2: mov PT_DS(%esp), %ds -+3: mov PT_ES(%esp), %es - PTGS_TO_GS - ENABLE_INTERRUPTS_SYSEXIT - -@@ -505,11 +555,17 @@ sysexit_audit: - - CFI_ENDPROC - .pushsection .fixup,"ax" --2: movl $0,PT_FS(%esp) -+4: movl $0,PT_FS(%esp) -+ jmp 1b -+5: movl $0,PT_DS(%esp) -+ jmp 1b -+6: movl $0,PT_ES(%esp) - jmp 1b - .section __ex_table,"a" - .align 4 -- .long 1b,2b -+ .long 1b,4b -+ .long 2b,5b -+ .long 3b,6b - .popsection - PTGS_TO_GS_EX - ENDPROC(ia32_sysenter_target) -@@ -539,6 +595,10 @@ syscall_exit: - testl $_TIF_ALLWORK_MASK, %ecx # current->work - jne syscall_exit_work - -+#ifdef CONFIG_PAX_RANDKSTACK -+ call pax_randomize_kstack -+#endif -+ - restore_all: - movl PT_EFLAGS(%esp), %eax # mix EFLAGS, SS and CS - # Warning: PT_OLDSS(%esp) contains the wrong/random values if we -@@ -631,25 +691,19 @@ work_resched: - - work_notifysig: # deal with pending signals and - # notify-resume requests -+ movl %esp, %eax - #ifdef CONFIG_VM86 - testl $X86_EFLAGS_VM, PT_EFLAGS(%esp) -- movl %esp, %eax -- jne work_notifysig_v86 # returning to kernel-space or -+ jz 1f # returning to kernel-space or - # vm86-space -- xorl %edx, %edx -- call do_notify_resume -- jmp resume_userspace_sig - -- ALIGN --work_notifysig_v86: - pushl %ecx # save ti_flags for do_notify_resume - CFI_ADJUST_CFA_OFFSET 4 - call save_v86_state # %eax contains pt_regs pointer - popl %ecx - CFI_ADJUST_CFA_OFFSET -4 - movl %eax, %esp --#else -- movl %esp, %eax -+1: - #endif - xorl %edx, %edx - call do_notify_resume -@@ -684,6 +738,10 @@ END(syscall_exit_work) - - RING0_INT_FRAME # can't unwind into user space anyway - syscall_fault: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ push %ss -+ pop %ds -+#endif - GET_THREAD_INFO(%ebp) - movl $-EFAULT,PT_EAX(%esp) - jmp resume_userspace -@@ -717,7 +775,13 @@ PTREGSCALL(vm86old) - - .macro FIXUP_ESPFIX_STACK - /* since we are on a wrong stack, we cant make it a C code :( */ -- PER_CPU(gdt_page, %ebx) -+#ifdef CONFIG_SMP -+ movl PER_CPU_VAR(cpu_number), %ebx -+ shll $PAGE_SHIFT_asm, %ebx -+ addl $cpu_gdt_table, %ebx -+#else -+ movl $cpu_gdt_table, %ebx -+#endif - GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah) - addl %esp, %eax - pushl $__KERNEL_DS -@@ -1176,7 +1240,6 @@ return_to_handler: - ret - #endif - --.section .rodata,"a" - #include "syscall_table_32.S" - - syscall_table_size=(.-sys_call_table) -@@ -1228,12 +1291,21 @@ error_code: - movl %ecx, %fs - UNWIND_ESPFIX_STACK - GS_TO_REG %ecx -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_EDX -+ movl %edx, %esi -+ orl $X86_CR0_WP, %edx -+ xorl %edx, %esi -+ SET_CR0_FROM_EDX -+#endif -+ - movl PT_GS(%esp), %edi # get the function address - movl PT_ORIG_EAX(%esp), %edx # get the error code - movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart - REG_TO_PTGS %ecx - SET_KERNEL_GS %ecx -- movl $(__USER_DS), %ecx -+ movl $(__KERNEL_DS), %ecx - movl %ecx, %ds - movl %ecx, %es - TRACE_IRQS_OFF -@@ -1329,6 +1401,13 @@ nmi_stack_correct: - xorl %edx,%edx # zero error code - movl %esp,%eax # pt_regs pointer - call do_nmi -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_EDX -+ xorl %esi, %edx -+ SET_CR0_FROM_EDX -+#endif -+ - jmp restore_nocheck_notrace - CFI_ENDPROC - -@@ -1369,6 +1448,13 @@ nmi_espfix_stack: - FIXUP_ESPFIX_STACK # %eax == %esp - xorl %edx,%edx # zero error code - call do_nmi -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_EDX -+ xorl %esi, %edx -+ SET_CR0_FROM_EDX -+#endif -+ - RESTORE_REGS - lss 12+4(%esp), %esp # back to espfix stack - CFI_ADJUST_CFA_OFFSET -24 -diff -urNp linux-2.6.30.4/arch/x86/kernel/entry_64.S linux-2.6.30.4/arch/x86/kernel/entry_64.S ---- linux-2.6.30.4/arch/x86/kernel/entry_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/entry_64.S 2009-08-12 21:15:21.099483377 -0400 -@@ -1073,7 +1073,12 @@ ENTRY(\sym) - TRACE_IRQS_OFF - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ -- PER_CPU(init_tss, %rbp) -+#ifdef CONFIG_SMP -+ imul $TSS_size, PER_CPU_VAR(cpu_number), %ebp -+ lea init_tss(%rbp), %rbp -+#else -+ lea init_tss(%rip), %rbp -+#endif - subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp) - call \do_sym - addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp) -diff -urNp linux-2.6.30.4/arch/x86/kernel/ftrace.c linux-2.6.30.4/arch/x86/kernel/ftrace.c ---- linux-2.6.30.4/arch/x86/kernel/ftrace.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/ftrace.c 2009-07-30 09:48:09.945662533 -0400 -@@ -284,9 +284,9 @@ int ftrace_update_ftrace_func(ftrace_fun - unsigned char old[MCOUNT_INSN_SIZE], *new; - int ret; - -- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); -+ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE); - new = ftrace_call_replace(ip, (unsigned long)func); -- ret = ftrace_modify_code(ip, old, new); -+ ret = ftrace_modify_code(ktla_ktva(ip), old, new); - - return ret; - } -diff -urNp linux-2.6.30.4/arch/x86/kernel/head32.c linux-2.6.30.4/arch/x86/kernel/head32.c ---- linux-2.6.30.4/arch/x86/kernel/head32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/head32.c 2009-07-30 09:48:09.946846946 -0400 -@@ -13,12 +13,13 @@ - #include - #include - #include -+#include - - void __init i386_start_kernel(void) - { - reserve_trampoline_memory(); - -- reserve_early(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS"); -+ reserve_early(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop), "TEXT DATA BSS"); - - #ifdef CONFIG_BLK_DEV_INITRD - /* Reserve INITRD */ -diff -urNp linux-2.6.30.4/arch/x86/kernel/head_32.S linux-2.6.30.4/arch/x86/kernel/head_32.S ---- linux-2.6.30.4/arch/x86/kernel/head_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/head_32.S 2009-08-05 19:08:00.458589400 -0400 -@@ -20,6 +20,7 @@ - #include - #include - #include -+#include - - /* Physical address */ - #define pa(X) ((X) - __PAGE_OFFSET) -@@ -53,11 +54,7 @@ - * and small than max_low_pfn, otherwise will waste some page table entries - */ - --#if PTRS_PER_PMD > 1 --#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD) --#else --#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD) --#endif -+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE) - - /* Enough space to fit pagetables for the low memory linear map */ - MAPPING_BEYOND_END = \ -@@ -74,6 +71,15 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_P - RESERVE_BRK(pagetables, INIT_MAP_SIZE) - - /* -+ * Real beginning of normal "text" segment -+ */ -+ENTRY(stext) -+ENTRY(_stext) -+ -+.section .text.startup,"ax",@progbits -+ ljmp $(__BOOT_CS),$phys_startup_32 -+ -+/* - * 32-bit kernel entrypoint; only used by the boot CPU. On entry, - * %esi points to the real-mode code as a 32-bit pointer. - * CS and DS must be 4 GB flat segments, but we don't depend on -@@ -81,6 +87,12 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE) - * can. - */ - .section .text.head,"ax",@progbits -+ -+#ifdef CONFIG_PAX_KERNEXEC -+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */ -+.fill 4096,1,0xcc -+#endif -+ - ENTRY(startup_32) - /* test KEEP_SEGMENTS flag to see if the bootloader is asking - us to not reload segments */ -@@ -98,6 +110,58 @@ ENTRY(startup_32) - movl %eax,%gs - 2: - -+#ifdef CONFIG_SMP -+ movl $pa(cpu_gdt_table),%edi -+ movl $__per_cpu_load,%eax -+ movw %ax,__KERNEL_PERCPU + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_PERCPU + 4(%edi) -+ movb %ah,__KERNEL_PERCPU + 7(%edi) -+ movl $__per_cpu_end - 1,%eax -+ subl $__per_cpu_load,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+#endif -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ /* check for VMware */ -+ movl $0x564d5868,%eax -+ xorl %ebx,%ebx -+ movl $0xa,%ecx -+ movl $0x5658,%edx -+ in (%dx),%eax -+ cmpl $0x564d5868,%ebx -+ jz 2f -+ -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+1: -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi) -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+2: -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ movl $pa(boot_gdt),%edi -+ movl $KERNEL_TEXT_OFFSET,%eax -+ movw %ax,__BOOT_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__BOOT_CS + 4(%edi) -+ movb %ah,__BOOT_CS + 7(%edi) -+ rorl $16,%eax -+ -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+1: -+ movw %ax,__KERNEL_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_CS + 4(%edi) -+ movb %ah,__KERNEL_CS + 7(%edi) -+ rorl $16,%eax -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+#endif -+ - /* - * Clear BSS first so that there are no surprises... - */ -@@ -141,9 +205,7 @@ ENTRY(startup_32) - cmpl $num_subarch_entries, %eax - jae bad_subarch - -- movl pa(subarch_entries)(,%eax,4), %eax -- subl $__PAGE_OFFSET, %eax -- jmp *%eax -+ jmp *pa(subarch_entries)(,%eax,4) - - bad_subarch: - WEAK(lguest_entry) -@@ -155,9 +217,9 @@ WEAK(xen_entry) - __INITDATA - - subarch_entries: -- .long default_entry /* normal x86/PC */ -- .long lguest_entry /* lguest hypervisor */ -- .long xen_entry /* Xen hypervisor */ -+ .long pa(default_entry) /* normal x86/PC */ -+ .long pa(lguest_entry) /* lguest hypervisor */ -+ .long pa(xen_entry) /* Xen hypervisor */ - num_subarch_entries = (. - subarch_entries) / 4 - .previous - #endif /* CONFIG_PARAVIRT */ -@@ -218,8 +280,14 @@ default_entry: - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(swapper_pg_pmd+0x1000*KPMDS-8) -+#ifdef CONFIG_COMPAT_VDSO -+ movl $pa(swapper_pg_fixmap0)+PDE_IDENT_ATTR+_PAGE_USER,pa(swapper_pg_pmd+0x1000*KPMDS-8) -+#else -+ movl $pa(swapper_pg_fixmap0)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-8) -+#endif -+ movl $pa(swapper_pg_fixmap1)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-16) -+ movl $pa(swapper_pg_fixmap2)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-24) -+ movl $pa(swapper_pg_fixmap3)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-32) - #else /* Not PAE */ - - page_pde_offset = (__PAGE_OFFSET >> 20); -@@ -249,8 +317,14 @@ page_pde_offset = (__PAGE_OFFSET >> 20); - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(swapper_pg_dir+0xffc) -+#ifdef CONFIG_COMPAT_VDSO -+ movl $pa(swapper_pg_fixmap0)+PDE_IDENT_ATTR+_PAGE_USER,pa(swapper_pg_dir+0xffc) -+#else -+ movl $pa(swapper_pg_fixmap0)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xffc) -+#endif -+ movl $pa(swapper_pg_fixmap1)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xff8) -+ movl $pa(swapper_pg_fixmap2)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xff4) -+ movl $pa(swapper_pg_fixmap3)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xff0) - #endif - jmp 3f - /* -@@ -314,13 +388,16 @@ ENTRY(startup_32_smp) - jnc 6f - - /* Setup EFER (Extended Feature Enable Register) */ -- movl $0xc0000080, %ecx -+ movl $MSR_EFER, %ecx - rdmsr - - btsl $11, %eax - /* Make changes effective */ - wrmsr - -+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4) -+ movl $1,pa(nx_enabled) -+ - 6: - - /* -@@ -346,9 +423,7 @@ ENTRY(startup_32_smp) - - #ifdef CONFIG_SMP - cmpb $0, ready -- jz 1f /* Initial CPU cleans BSS */ -- jmp checkCPUtype --1: -+ jnz checkCPUtype /* Initial CPU cleans BSS */ - #endif /* CONFIG_SMP */ - - /* -@@ -426,7 +501,7 @@ is386: movl $2,%ecx # set MP - 1: movl $(__KERNEL_DS),%eax # reload all the segment registers - movl %eax,%ss # after changing gdt. - -- movl $(__USER_DS),%eax # DS/ES contains default USER segment -+ movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment - movl %eax,%ds - movl %eax,%es - -@@ -440,8 +515,11 @@ is386: movl $2,%ecx # set MP - */ - cmpb $0,ready - jne 1f -- movl $per_cpu__gdt_page,%eax -+ movl $cpu_gdt_table,%eax - movl $per_cpu__stack_canary,%ecx -+#ifdef CONFIG_SMP -+ addl $__per_cpu_load,%ecx -+#endif - subl $20, %ecx - movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax) - shrl $16, %ecx -@@ -460,10 +538,6 @@ is386: movl $2,%ecx # set MP - #ifdef CONFIG_SMP - movb ready, %cl - movb $1, ready -- cmpb $0,%cl # the first CPU calls start_kernel -- je 1f -- movl (stack_start), %esp --1: - #endif /* CONFIG_SMP */ - jmp *(initial_code) - -@@ -549,22 +623,22 @@ early_page_fault: - jmp early_fault - - early_fault: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $1,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pusha - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - movl %cr2,%eax - pushl %eax - pushl %edx /* trapno */ - pushl $fault_msg - call printk -+; call dump_stack - #endif -- call dump_stack - hlt_loop: - hlt - jmp hlt_loop -@@ -572,8 +646,11 @@ hlt_loop: - /* This is the default interrupt "handler" :-) */ - ALIGN - ignore_int: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $2,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pushl %eax - pushl %ecx - pushl %edx -@@ -582,9 +659,6 @@ ignore_int: - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - pushl 16(%esp) - pushl 24(%esp) - pushl 32(%esp) -@@ -608,37 +682,49 @@ ignore_int: - ENTRY(initial_code) - .long i386_start_kernel - --.section .text --/* -- * Real beginning of normal "text" segment -- */ --ENTRY(stext) --ENTRY(_stext) -- - /* - * BSS section - */ --.section ".bss.page_aligned","wa" -- .align PAGE_SIZE_asm - #ifdef CONFIG_X86_PAE -+.section .swapper_pg_pmd,"a",@progbits - swapper_pg_pmd: - .fill 1024*KPMDS,4,0 - #else -+.section .swapper_pg_dir,"a",@progbits - ENTRY(swapper_pg_dir) - .fill 1024,4,0 - #endif --swapper_pg_fixmap: -+ -+ENTRY(swapper_pg_fixmap0) -+ .fill 1024,4,0 -+ -+ENTRY(swapper_pg_fixmap1) - .fill 1024,4,0 -+ -+ENTRY(swapper_pg_fixmap2) -+ .fill 1024,4,0 -+ -+ENTRY(swapper_pg_fixmap3) -+ .fill 1024,4,0 -+ -+.section .empty_zero_page,"a",@progbits - ENTRY(empty_zero_page) - .fill 4096,1,0 - - /* -+ * The IDT has to be page-aligned to simplify the Pentium -+ * F0 0F bug workaround.. We have a special link segment -+ * for this. -+ */ -+.section .idt,"a",@progbits -+ENTRY(idt_table) -+ .fill 256,8,0 -+ -+/* - * This starts the data section. - */ - #ifdef CONFIG_X86_PAE --.section ".data.page_aligned","wa" -- /* Page-aligned for the benefit of paravirt? */ -- .align PAGE_SIZE_asm -+.section .swapper_pg_dir,"a",@progbits - ENTRY(swapper_pg_dir) - .long pa(swapper_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */ - # if KPMDS == 3 -@@ -661,11 +747,12 @@ ENTRY(swapper_pg_dir) - - .data - ENTRY(stack_start) -- .long init_thread_union+THREAD_SIZE -+ .long init_thread_union+THREAD_SIZE-8 - .long __BOOT_DS - - ready: .byte 0 - -+.section .rodata,"a",@progbits - early_recursion_flag: - .long 0 - -@@ -701,7 +788,7 @@ fault_msg: - .word 0 # 32 bit align gdt_desc.address - boot_gdt_descr: - .word __BOOT_DS+7 -- .long boot_gdt - __PAGE_OFFSET -+ .long pa(boot_gdt) - - .word 0 # 32-bit align idt_desc.address - idt_descr: -@@ -712,7 +799,7 @@ idt_descr: - .word 0 # 32 bit align gdt_desc.address - ENTRY(early_gdt_descr) - .word GDT_ENTRIES*8-1 -- .long per_cpu__gdt_page /* Overwritten for secondary CPUs */ -+ .long cpu_gdt_table /* Overwritten for secondary CPUs */ - - /* - * The boot_gdt must mirror the equivalent in setup.S and is -@@ -721,5 +808,59 @@ ENTRY(early_gdt_descr) - .align L1_CACHE_BYTES - ENTRY(boot_gdt) - .fill GDT_ENTRY_BOOT_CS,8,0 -- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */ -- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */ -+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */ -+ -+ .align PAGE_SIZE_asm -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x0000000000000000 /* 0x0b reserved */ -+ .quad 0x0000000000000000 /* 0x13 reserved */ -+ .quad 0x0000000000000000 /* 0x1b reserved */ -+ .quad 0x0000000000000000 /* 0x20 unused */ -+ .quad 0x0000000000000000 /* 0x28 unused */ -+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ -+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */ -+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */ -+ .quad 0x0000000000000000 /* 0x4b reserved */ -+ .quad 0x0000000000000000 /* 0x53 reserved */ -+ .quad 0x0000000000000000 /* 0x5b reserved */ -+ -+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */ -+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */ -+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */ -+ -+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */ -+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */ -+ -+ /* -+ * Segments used for calling PnP BIOS have byte granularity. -+ * The code segments and data segments have fixed 64k limits, -+ * the transfer segment sizes are set at run time. -+ */ -+ .quad 0x00409b000000ffff /* 0x90 32-bit code */ -+ .quad 0x00009b000000ffff /* 0x98 16-bit code */ -+ .quad 0x000093000000ffff /* 0xa0 16-bit data */ -+ .quad 0x0000930000000000 /* 0xa8 16-bit data */ -+ .quad 0x0000930000000000 /* 0xb0 16-bit data */ -+ -+ /* -+ * The APM segments have byte granularity and their bases -+ * are set at run time. All have 64k limits. -+ */ -+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */ -+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */ -+ .quad 0x004093000000ffff /* 0xc8 APM DS data */ -+ -+ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */ -+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */ -+ .quad 0x0040930000000018 /* 0xe0 - STACK_CANARY */ -+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */ -+ .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */ -+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */ -+ -+ /* Be sure this is zeroed to avoid false validations in Xen */ -+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0 -+ .endr -diff -urNp linux-2.6.30.4/arch/x86/kernel/head_64.S linux-2.6.30.4/arch/x86/kernel/head_64.S ---- linux-2.6.30.4/arch/x86/kernel/head_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/head_64.S 2009-08-01 08:46:06.399105315 -0400 -@@ -39,6 +39,10 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET - L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET) - L4_START_KERNEL = pgd_index(__START_KERNEL_map) - L3_START_KERNEL = pud_index(__START_KERNEL_map) -+L4_VMALLOC_START = pgd_index(VMALLOC_START) -+L3_VMALLOC_START = pud_index(VMALLOC_START) -+L4_VMEMMAP_START = pgd_index(VMEMMAP_START) -+L3_VMEMMAP_START = pud_index(VMEMMAP_START) - - .text - .section .text.head -@@ -86,35 +90,22 @@ startup_64: - */ - addq %rbp, init_level4_pgt + 0(%rip) - addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip) - addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip) - - addq %rbp, level3_ident_pgt + 0(%rip) -+ addq %rbp, level3_ident_pgt + 8(%rip) -+ addq %rbp, level3_ident_pgt + 16(%rip) -+ addq %rbp, level3_ident_pgt + 24(%rip) - -- addq %rbp, level3_kernel_pgt + (510*8)(%rip) -- addq %rbp, level3_kernel_pgt + (511*8)(%rip) -+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip) - -- addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip) - -- /* Add an Identity mapping if I am above 1G */ -- leaq _text(%rip), %rdi -- andq $PMD_PAGE_MASK, %rdi -- -- movq %rdi, %rax -- shrq $PUD_SHIFT, %rax -- andq $(PTRS_PER_PUD - 1), %rax -- jz ident_complete -- -- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx -- leaq level3_ident_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) -- -- movq %rdi, %rax -- shrq $PMD_SHIFT, %rax -- andq $(PTRS_PER_PMD - 1), %rax -- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx -- leaq level2_spare_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) --ident_complete: -+ addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) - - /* - * Fixup the kernel text+data virtual addresses. Note that -@@ -188,6 +179,10 @@ ENTRY(secondary_startup_64) - btl $20,%edi /* No Execute supported? */ - jnc 1f - btsl $_EFER_NX, %eax -+ leaq init_level4_pgt(%rip), %rdi -+ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi) - 1: wrmsr /* Make changes effective */ - - /* Setup cr0 */ -@@ -263,16 +258,16 @@ ENTRY(secondary_startup_64) - .quad x86_64_start_kernel - ENTRY(initial_gs) - .quad INIT_PER_CPU_VAR(irq_stack_union) -- __FINITDATA - - ENTRY(stack_start) - .quad init_thread_union+THREAD_SIZE-8 - .word 0 -+ __FINITDATA - - bad_address: - jmp bad_address - -- .section ".init.text","ax" -+ __INIT - #ifdef CONFIG_EARLY_PRINTK - .globl early_idt_handlers - early_idt_handlers: -@@ -317,18 +312,23 @@ ENTRY(early_idt_handler) - #endif /* EARLY_PRINTK */ - 1: hlt - jmp 1b -+ .previous - - #ifdef CONFIG_EARLY_PRINTK -+ __INITDATA - early_recursion_flag: - .long 0 -+ .previous - -+ .section .rodata,"a",@progbits - early_idt_msg: - .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n" - early_idt_ripmsg: - .asciz "RIP %s\n" --#endif /* CONFIG_EARLY_PRINTK */ - .previous -+#endif /* CONFIG_EARLY_PRINTK */ - -+ .section .rodata,"a",@progbits - #define NEXT_PAGE(name) \ - .balign PAGE_SIZE; \ - ENTRY(name) -@@ -351,13 +351,27 @@ NEXT_PAGE(init_level4_pgt) - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_PAGE_OFFSET*8, 0 - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMALLOC_START*8, 0 -+ .quad level3_vmalloc_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0 -+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_START_KERNEL*8, 0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE - - NEXT_PAGE(level3_ident_pgt) - .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -- .fill 511,8,0 -+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .quad level2_ident_pgt + 2*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .quad level2_ident_pgt + 3*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .fill 508,8,0 -+ -+NEXT_PAGE(level3_vmalloc_pgt) -+ .fill 512,8,0 -+ -+NEXT_PAGE(level3_vmemmap_pgt) -+ .fill L3_VMEMMAP_START,8,0 -+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - - NEXT_PAGE(level3_kernel_pgt) - .fill L3_START_KERNEL,8,0 -@@ -365,20 +379,27 @@ NEXT_PAGE(level3_kernel_pgt) - .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE - .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE - -+NEXT_PAGE(level2_vmemmap_pgt) -+ .fill 512,8,0 -+ - NEXT_PAGE(level2_fixmap_pgt) - .fill 506,8,0 - .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE -- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */ -- .fill 5,8,0 -+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE -+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */ -+ .fill 4,8,0 - - NEXT_PAGE(level1_fixmap_pgt) - .fill 512,8,0 - --NEXT_PAGE(level2_ident_pgt) -- /* Since I easily can, map the first 1G. -+NEXT_PAGE(level1_vsyscall_pgt) -+ .fill 512,8,0 -+ -+ /* Since I easily can, map the first 4G. - * Don't set NX because code runs from these pages. - */ -- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD) -+NEXT_PAGE(level2_ident_pgt) -+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 4*PTRS_PER_PMD) - - NEXT_PAGE(level2_kernel_pgt) - /* -@@ -391,33 +412,49 @@ NEXT_PAGE(level2_kernel_pgt) - * If you want to increase this then increase MODULES_VADDR - * too.) - */ -- PMDS(0, __PAGE_KERNEL_LARGE_EXEC, -- KERNEL_IMAGE_SIZE/PMD_SIZE) -- --NEXT_PAGE(level2_spare_pgt) -- .fill 512, 8, 0 -+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE) - - #undef PMDS - #undef NEXT_PAGE - -- .data -+ .align PAGE_SIZE -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */ -+ .quad 0x00af9b000000ffff /* __KERNEL_CS */ -+ .quad 0x00cf93000000ffff /* __KERNEL_DS */ -+ .quad 0x00cffb000000ffff /* __USER32_CS */ -+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */ -+ .quad 0x00affb000000ffff /* __USER_CS */ -+ .quad 0x0 /* unused */ -+ .quad 0,0 /* TSS */ -+ .quad 0,0 /* LDT */ -+ .quad 0,0,0 /* three TLS descriptors */ -+ .quad 0x0000f40000000000 /* node/CPU stored in limit */ -+ /* asm/segment.h:GDT_ENTRIES must match this */ -+ -+ /* zero the remaining page */ -+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0 -+ .endr -+ - .align 16 - .globl early_gdt_descr - early_gdt_descr: - .word GDT_ENTRIES*8-1 - early_gdt_descr_base: -- .quad INIT_PER_CPU_VAR(gdt_page) -+ .quad cpu_gdt_table - - ENTRY(phys_base) - /* This must match the first entry in level2_kernel_pgt */ - .quad 0x0000000000000000 - - #include "../../x86/xen/xen-head.S" -- -- .section .bss, "aw", @nobits -+ -+ .section .rodata,"a",@progbits - .align L1_CACHE_BYTES - ENTRY(idt_table) -- .skip IDT_ENTRIES * 16 -+ .fill 512,8,0 - - .section .bss.page_aligned, "aw", @nobits - .align PAGE_SIZE -diff -urNp linux-2.6.30.4/arch/x86/kernel/i386_ksyms_32.c linux-2.6.30.4/arch/x86/kernel/i386_ksyms_32.c ---- linux-2.6.30.4/arch/x86/kernel/i386_ksyms_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/i386_ksyms_32.c 2009-07-30 09:48:09.948476455 -0400 -@@ -10,8 +10,12 @@ - EXPORT_SYMBOL(mcount); - #endif - -+EXPORT_SYMBOL_GPL(cpu_gdt_table); -+ - /* Networking helper routines. */ - EXPORT_SYMBOL(csum_partial_copy_generic); -+EXPORT_SYMBOL(csum_partial_copy_generic_to_user); -+EXPORT_SYMBOL(csum_partial_copy_generic_from_user); - - EXPORT_SYMBOL(__get_user_1); - EXPORT_SYMBOL(__get_user_2); -@@ -26,3 +30,7 @@ EXPORT_SYMBOL(strstr); - - EXPORT_SYMBOL(csum_partial); - EXPORT_SYMBOL(empty_zero_page); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+EXPORT_SYMBOL(KERNEL_TEXT_OFFSET); -+#endif -diff -urNp linux-2.6.30.4/arch/x86/kernel/init_task.c linux-2.6.30.4/arch/x86/kernel/init_task.c ---- linux-2.6.30.4/arch/x86/kernel/init_task.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/init_task.c 2009-07-30 09:48:09.948476455 -0400 -@@ -40,5 +40,5 @@ EXPORT_SYMBOL(init_task); - * section. Since TSS's are completely CPU-local, we want them - * on exact cacheline boundaries, to eliminate cacheline ping-pong. - */ --DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; -- -+struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS }; -+EXPORT_SYMBOL(init_tss); -diff -urNp linux-2.6.30.4/arch/x86/kernel/ioport.c linux-2.6.30.4/arch/x86/kernel/ioport.c ---- linux-2.6.30.4/arch/x86/kernel/ioport.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/ioport.c 2009-07-30 11:10:48.918448854 -0400 -@@ -6,6 +6,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -41,6 +42,12 @@ asmlinkage long sys_ioperm(unsigned long - - if ((from + num <= from) || (from + num > IO_BITMAP_BITS)) - return -EINVAL; -+#ifdef CONFIG_GRKERNSEC_IO -+ if (turn_on) { -+ gr_handle_ioperm(); -+ return -EPERM; -+ } -+#endif - if (turn_on && !capable(CAP_SYS_RAWIO)) - return -EPERM; - -@@ -67,7 +74,7 @@ asmlinkage long sys_ioperm(unsigned long - * because the ->io_bitmap_max value must match the bitmap - * contents: - */ -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - - set_bitmap(t->io_bitmap_ptr, from, num, !turn_on); - -@@ -111,8 +118,13 @@ static int do_iopl(unsigned int level, s - return -EINVAL; - /* Trying to gain more privileges? */ - if (level > old) { -+#ifdef CONFIG_GRKERNSEC_IO -+ gr_handle_iopl(); -+ return -EPERM; -+#else - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; -+#endif - } - regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12); - -diff -urNp linux-2.6.30.4/arch/x86/kernel/irq_32.c linux-2.6.30.4/arch/x86/kernel/irq_32.c ---- linux-2.6.30.4/arch/x86/kernel/irq_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/irq_32.c 2009-07-30 09:48:09.948476455 -0400 -@@ -94,7 +94,7 @@ execute_on_irq_stack(int overflow, struc - return 0; - - /* build the stack frame on the IRQ stack */ -- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); -+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); - irqctx->tinfo.task = curctx->tinfo.task; - irqctx->tinfo.previous_esp = current_stack_pointer; - -@@ -175,7 +175,7 @@ asmlinkage void do_softirq(void) - irqctx->tinfo.previous_esp = current_stack_pointer; - - /* build the stack frame on the softirq stack */ -- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); -+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); - - call_on_stack(__do_softirq, isp); - /* -diff -urNp linux-2.6.30.4/arch/x86/kernel/kprobes.c linux-2.6.30.4/arch/x86/kernel/kprobes.c ---- linux-2.6.30.4/arch/x86/kernel/kprobes.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/kprobes.c 2009-07-30 09:48:09.948476455 -0400 -@@ -166,9 +166,24 @@ static void __kprobes set_jmp_op(void *f - char op; - s32 raddr; - } __attribute__((packed)) * jop; -- jop = (struct __arch_jmp_op *)from; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ -+ jop = (struct __arch_jmp_op *)(ktla_ktva(from)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - jop->raddr = (s32)((long)(to) - ((long)(from) + 5)); - jop->op = RELATIVEJUMP_INSTRUCTION; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - /* -@@ -345,16 +360,29 @@ static void __kprobes fix_riprel(struct - - static void __kprobes arch_copy_kprobe(struct kprobe *p) - { -- memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ memcpy(p->ainsn.insn, ktla_ktva(p->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif - - fix_riprel(p); - -- if (can_boost(p->addr)) -+ if (can_boost(ktla_ktva(p->addr))) - p->ainsn.boostable = 0; - else - p->ainsn.boostable = -1; - -- p->opcode = *p->addr; -+ p->opcode = *(ktla_ktva(p->addr)); - } - - int __kprobes arch_prepare_kprobe(struct kprobe *p) -@@ -432,7 +460,7 @@ static void __kprobes prepare_singlestep - if (p->opcode == BREAKPOINT_INSTRUCTION) - regs->ip = (unsigned long)p->addr; - else -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - } - - void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, -@@ -453,7 +481,7 @@ static void __kprobes setup_singlestep(s - if (p->ainsn.boostable == 1 && !p->post_handler) { - /* Boost up -- we can execute copied instructions directly */ - reset_current_kprobe(); -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - preempt_enable_no_resched(); - return; - } -@@ -523,7 +551,7 @@ static int __kprobes kprobe_handler(stru - struct kprobe_ctlblk *kcb; - - addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t)); -- if (*addr != BREAKPOINT_INSTRUCTION) { -+ if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) { - /* - * The breakpoint instruction was removed right - * after we hit it. Another cpu has removed -@@ -775,7 +803,7 @@ static void __kprobes resume_execution(s - struct pt_regs *regs, struct kprobe_ctlblk *kcb) - { - unsigned long *tos = stack_addr(regs); -- unsigned long copy_ip = (unsigned long)p->ainsn.insn; -+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn); - unsigned long orig_ip = (unsigned long)p->addr; - kprobe_opcode_t *insn = p->ainsn.insn; - -@@ -958,7 +986,7 @@ int __kprobes kprobe_exceptions_notify(s - struct die_args *args = data; - int ret = NOTIFY_DONE; - -- if (args->regs && user_mode_vm(args->regs)) -+ if (args->regs && user_mode(args->regs)) - return ret; - - switch (val) { -diff -urNp linux-2.6.30.4/arch/x86/kernel/ldt.c linux-2.6.30.4/arch/x86/kernel/ldt.c ---- linux-2.6.30.4/arch/x86/kernel/ldt.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/ldt.c 2009-07-30 09:48:09.950015875 -0400 -@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, i - if (reload) { - #ifdef CONFIG_SMP - preempt_disable(); -- load_LDT(pc); -+ load_LDT_nolock(pc); - if (!cpus_equal(current->mm->cpu_vm_mask, - cpumask_of_cpu(smp_processor_id()))) - smp_call_function(flush_ldt, current->mm, 1); - preempt_enable(); - #else -- load_LDT(pc); -+ load_LDT_nolock(pc); - #endif - } - if (oldsize) { -@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t - return err; - - for (i = 0; i < old->size; i++) -- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE); -+ write_ldt_entry(new->ldt, i, old->ldt + i); - return 0; - } - -@@ -115,6 +115,24 @@ int init_new_context(struct task_struct - retval = copy_ldt(&mm->context, &old_mm->context); - mutex_unlock(&old_mm->context.lock); - } -+ -+ if (tsk == current) { -+ mm->context.vdso = ~0UL; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ mm->context.user_cs_base = 0UL; -+ mm->context.user_cs_limit = ~0UL; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpus_clear(mm->context.cpu_user_cs_mask); -+#endif -+ -+#endif -+#endif -+ -+ } -+ - return retval; - } - -@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, u - } - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) { -+ error = -EINVAL; -+ goto out_unlock; -+ } -+#endif -+ - fill_ldt(&ldt, &ldt_info); - if (oldmode) - ldt.avl = 0; -diff -urNp linux-2.6.30.4/arch/x86/kernel/machine_kexec_32.c linux-2.6.30.4/arch/x86/kernel/machine_kexec_32.c ---- linux-2.6.30.4/arch/x86/kernel/machine_kexec_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/machine_kexec_32.c 2009-07-30 09:48:09.950015875 -0400 -@@ -26,7 +26,7 @@ - #include - #include - --static void set_idt(void *newidt, __u16 limit) -+static void set_idt(struct desc_struct *newidt, __u16 limit) - { - struct desc_ptr curidt; - -@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 - } - - --static void set_gdt(void *newgdt, __u16 limit) -+static void set_gdt(struct desc_struct *newgdt, __u16 limit) - { - struct desc_ptr curgdt; - -@@ -217,7 +217,7 @@ void machine_kexec(struct kimage *image) - } - - control_page = page_address(image->control_code_page); -- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE); -+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE); - - relocate_kernel_ptr = control_page; - page_list[PA_CONTROL_PAGE] = __pa(control_page); -diff -urNp linux-2.6.30.4/arch/x86/kernel/module_32.c linux-2.6.30.4/arch/x86/kernel/module_32.c ---- linux-2.6.30.4/arch/x86/kernel/module_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/module_32.c 2009-08-01 15:35:35.138919235 -0400 -@@ -23,6 +23,9 @@ - #include - #include - -+#include -+#include -+ - #if 0 - #define DEBUGP printk - #else -@@ -33,9 +36,31 @@ void *module_alloc(unsigned long size) - { - if (size == 0) - return NULL; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL); -+#else - return vmalloc_exec(size); -+#endif -+ - } - -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc_exec(unsigned long size) -+{ -+ struct vm_struct *area; -+ -+ if (size == 0) -+ return NULL; -+ -+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_VADDR, (unsigned long)&MODULES_END); -+ if (area) -+ return area->addr; -+ -+ return NULL; -+} -+EXPORT_SYMBOL(module_alloc_exec); -+#endif - - /* Free memory returned from module_alloc */ - void module_free(struct module *mod, void *module_region) -@@ -45,6 +70,46 @@ void module_free(struct module *mod, voi - table entries. */ - } - -+#ifdef CONFIG_PAX_KERNEXEC -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ struct vm_struct **p, *tmp; -+ -+ if (!module_region) -+ return; -+ -+ if ((PAGE_SIZE-1) & (unsigned long)module_region) { -+ printk(KERN_ERR "Trying to module_free_exec() bad address (%p)\n", module_region); -+ WARN_ON(1); -+ return; -+ } -+ -+ write_lock(&vmlist_lock); -+ for (p = &vmlist; (tmp = *p) != NULL; p = &tmp->next) -+ if (tmp->addr == module_region) -+ break; -+ -+ if (tmp) { -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+ memset(tmp->addr, 0xCC, tmp->size); -+ pax_close_kernel(cr0); -+ -+ *p = tmp->next; -+ kfree(tmp); -+ } -+ write_unlock(&vmlist_lock); -+ -+ if (!tmp) { -+ printk(KERN_ERR "Trying to module_free_exec() nonexistent vm area (%p)\n", -+ module_region); -+ WARN_ON(1); -+ } -+} -+EXPORT_SYMBOL(module_free_exec); -+#endif -+ - /* We don't need anything special. */ - int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, -@@ -63,14 +128,20 @@ int apply_relocate(Elf32_Shdr *sechdrs, - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; -- uint32_t *location; -+ uint32_t *plocation, location; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ -- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr -- + rel[i].r_offset; -+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset; -+ location = (uint32_t)plocation; -+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR) -+ plocation = ktla_ktva((void *)plocation); - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr -@@ -78,12 +149,32 @@ int apply_relocate(Elf32_Shdr *sechdrs, - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_386_32: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - /* We add the value into the location given */ -- *location += sym->st_value; -+ *plocation += sym->st_value; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - case R_386_PC32: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - /* Add the value, subtract its postition */ -- *location += sym->st_value - (uint32_t)location; -+ *plocation += sym->st_value - location; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", -diff -urNp linux-2.6.30.4/arch/x86/kernel/module_64.c linux-2.6.30.4/arch/x86/kernel/module_64.c ---- linux-2.6.30.4/arch/x86/kernel/module_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/module_64.c 2009-08-01 15:35:35.161871747 -0400 -@@ -40,7 +40,7 @@ void module_free(struct module *mod, voi - table entries. */ - } - --void *module_alloc(unsigned long size) -+static void *__module_alloc(unsigned long size, pgprot_t prot) - { - struct vm_struct *area; - -@@ -54,8 +54,33 @@ void *module_alloc(unsigned long size) - if (!area) - return NULL; - -- return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC); -+ return __vmalloc_area(area, GFP_KERNEL | __GFP_ZERO, prot); -+} -+ -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL); -+} -+ -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ module_free(mod, module_region); -+} -+EXPORT_SYMBOL(module_free_exec); -+ -+void *module_alloc_exec(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_RX); -+EXPORT_SYMBOL(module_alloc_exec); - } -+#else -+void *module_alloc(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_EXEC); -+} -+#endif -+ - #endif - - /* We don't need anything special. */ -@@ -79,6 +104,10 @@ int apply_relocate_add(Elf64_Shdr *sechd - void *loc; - u64 val; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { -@@ -101,21 +130,61 @@ int apply_relocate_add(Elf64_Shdr *sechd - case R_X86_64_NONE: - break; - case R_X86_64_64: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(u64 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - case R_X86_64_32: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(u32 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - if (val != *(u32 *)loc) - goto overflow; - break; - case R_X86_64_32S: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(s32 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - if ((s64)val != *(s32 *)loc) - goto overflow; - break; - case R_X86_64_PC32: - val -= (u64)loc; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(u32 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - #if 0 - if ((s64)val != *(s32 *)loc) - goto overflow; -diff -urNp linux-2.6.30.4/arch/x86/kernel/paravirt.c linux-2.6.30.4/arch/x86/kernel/paravirt.c ---- linux-2.6.30.4/arch/x86/kernel/paravirt.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/paravirt.c 2009-07-30 09:48:09.950702241 -0400 -@@ -54,7 +54,7 @@ u64 _paravirt_ident_64(u64 x) - return x; - } - --static void __init default_banner(void) -+static void default_banner(void) - { - printk(KERN_INFO "Booting paravirtualized kernel on %s\n", - pv_info.name); -@@ -183,7 +183,7 @@ unsigned paravirt_patch_insns(void *insn - if (insn_len > len || start == NULL) - insn_len = len; - else -- memcpy(insnbuf, start, insn_len); -+ memcpy(insnbuf, ktla_ktva(start), insn_len); - - return insn_len; - } -@@ -313,21 +313,21 @@ void arch_flush_lazy_cpu_mode(void) - preempt_enable(); - } - --struct pv_info pv_info = { -+struct pv_info pv_info __read_only = { - .name = "bare hardware", - .paravirt_enabled = 0, - .kernel_rpl = 0, - .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ - }; - --struct pv_init_ops pv_init_ops = { -+struct pv_init_ops pv_init_ops __read_only = { - .patch = native_patch, - .banner = default_banner, - .arch_setup = paravirt_nop, - .memory_setup = machine_specific_memory_setup, - }; - --struct pv_time_ops pv_time_ops = { -+struct pv_time_ops pv_time_ops __read_only = { - .time_init = hpet_time_init, - .get_wallclock = native_get_wallclock, - .set_wallclock = native_set_wallclock, -@@ -335,7 +335,7 @@ struct pv_time_ops pv_time_ops = { - .get_tsc_khz = native_calibrate_tsc, - }; - --struct pv_irq_ops pv_irq_ops = { -+struct pv_irq_ops pv_irq_ops __read_only = { - .init_IRQ = native_init_IRQ, - .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl), - .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl), -@@ -348,7 +348,7 @@ struct pv_irq_ops pv_irq_ops = { - #endif - }; - --struct pv_cpu_ops pv_cpu_ops = { -+struct pv_cpu_ops pv_cpu_ops __read_only = { - .cpuid = native_cpuid, - .get_debugreg = native_get_debugreg, - .set_debugreg = native_set_debugreg, -@@ -410,7 +410,7 @@ struct pv_cpu_ops pv_cpu_ops = { - }, - }; - --struct pv_apic_ops pv_apic_ops = { -+struct pv_apic_ops pv_apic_ops __read_only = { - #ifdef CONFIG_X86_LOCAL_APIC - .setup_boot_clock = setup_boot_APIC_clock, - .setup_secondary_clock = setup_secondary_APIC_clock, -@@ -426,7 +426,7 @@ struct pv_apic_ops pv_apic_ops = { - #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64) - #endif - --struct pv_mmu_ops pv_mmu_ops = { -+struct pv_mmu_ops pv_mmu_ops __read_only = { - #ifndef CONFIG_X86_64 - .pagetable_setup_start = native_pagetable_setup_start, - .pagetable_setup_done = native_pagetable_setup_done, -diff -urNp linux-2.6.30.4/arch/x86/kernel/paravirt-spinlocks.c linux-2.6.30.4/arch/x86/kernel/paravirt-spinlocks.c ---- linux-2.6.30.4/arch/x86/kernel/paravirt-spinlocks.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/paravirt-spinlocks.c 2009-07-30 09:48:09.950702241 -0400 -@@ -13,7 +13,7 @@ default_spin_lock_flags(raw_spinlock_t * - __raw_spin_lock(lock); - } - --struct pv_lock_ops pv_lock_ops = { -+struct pv_lock_ops pv_lock_ops __read_only = { - #ifdef CONFIG_SMP - .spin_is_locked = __ticket_spin_is_locked, - .spin_is_contended = __ticket_spin_is_contended, -diff -urNp linux-2.6.30.4/arch/x86/kernel/process_32.c linux-2.6.30.4/arch/x86/kernel/process_32.c ---- linux-2.6.30.4/arch/x86/kernel/process_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/process_32.c 2009-07-30 09:48:09.951950745 -0400 -@@ -73,6 +73,7 @@ EXPORT_PER_CPU_SYMBOL(current_task); - unsigned long thread_saved_pc(struct task_struct *tsk) - { - return ((unsigned long *)tsk->thread.sp)[3]; -+//XXX return tsk->thread.eip; - } - - #ifndef CONFIG_SMP -@@ -135,7 +136,7 @@ void __show_regs(struct pt_regs *regs, i - unsigned short ss, gs; - const char *board; - -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; - gs = get_user_gs(regs); -@@ -216,8 +217,8 @@ int kernel_thread(int (*fn)(void *), voi - regs.bx = (unsigned long) fn; - regs.dx = (unsigned long) arg; - -- regs.ds = __USER_DS; -- regs.es = __USER_DS; -+ regs.ds = __KERNEL_DS; -+ regs.es = __KERNEL_DS; - regs.fs = __KERNEL_PERCPU; - regs.gs = __KERNEL_STACK_CANARY; - regs.orig_ax = -1; -@@ -253,7 +254,7 @@ int copy_thread(unsigned long clone_flag - struct task_struct *tsk; - int err; - -- childregs = task_pt_regs(p); -+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8; - *childregs = *regs; - childregs->ax = 0; - childregs->sp = sp; -@@ -282,6 +283,7 @@ int copy_thread(unsigned long clone_flag - * Set a new TLS for the child thread? - */ - if (clone_flags & CLONE_SETTLS) -+//XXX needs set_fs()? - err = do_set_thread_area(p, -1, - (struct user_desc __user *)childregs->si, 0); - -@@ -351,7 +353,7 @@ __switch_to(struct task_struct *prev_p, - struct thread_struct *prev = &prev_p->thread, - *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ - -@@ -379,6 +381,11 @@ __switch_to(struct task_struct *prev_p, - */ - lazy_save_gs(prev->gs); - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!segment_eq(task_thread_info(prev_p)->addr_limit, task_thread_info(next_p)->addr_limit)) -+ __set_fs(task_thread_info(next_p)->addr_limit, cpu); -+#endif -+ - /* - * Load the per-thread Thread-Local Storage descriptor. - */ -@@ -497,15 +504,27 @@ unsigned long get_wchan(struct task_stru - return 0; - } - --unsigned long arch_align_stack(unsigned long sp) -+#ifdef CONFIG_PAX_RANDKSTACK -+asmlinkage void pax_randomize_kstack(void) - { -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} -+ struct thread_struct *thread = ¤t->thread; -+ unsigned long time; - --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; -+ if (!randomize_va_space) -+ return; -+ -+ rdtscl(time); -+ -+ /* P4 seems to return a 0 LSB, ignore it */ -+#ifdef CONFIG_MPENTIUM4 -+ time &= 0x1EUL; -+ time <<= 2; -+#else -+ time &= 0xFUL; -+ time <<= 3; -+#endif -+ -+ thread->sp0 ^= time; -+ load_sp0(init_tss + smp_processor_id(), thread); - } -+#endif -diff -urNp linux-2.6.30.4/arch/x86/kernel/process_64.c linux-2.6.30.4/arch/x86/kernel/process_64.c ---- linux-2.6.30.4/arch/x86/kernel/process_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/process_64.c 2009-07-30 09:48:09.951950745 -0400 -@@ -97,7 +97,7 @@ static void __exit_idle(void) - void exit_idle(void) - { - /* idle loop has pid 0 */ -- if (current->pid) -+ if (task_pid_nr(current)) - return; - __exit_idle(); - } -@@ -176,7 +176,7 @@ void __show_regs(struct pt_regs *regs, i - if (!board) - board = ""; - printk(KERN_INFO "Pid: %d, comm: %.20s %s %s %.*s %s\n", -- current->pid, current->comm, print_tainted(), -+ task_pid_nr(current), current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version, board); -@@ -386,7 +386,7 @@ __switch_to(struct task_struct *prev_p, - struct thread_struct *prev = &prev_p->thread; - struct thread_struct *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - unsigned fsindex, gsindex; - - /* we're going to use this soon, after a few expensive things */ -@@ -545,12 +545,11 @@ unsigned long get_wchan(struct task_stru - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - stack = (unsigned long)task_stack_page(p); -- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE) -+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-8-sizeof(u64)) - return 0; - fp = *(u64 *)(p->thread.sp); - do { -- if (fp < (unsigned long)stack || -- fp >= (unsigned long)stack+THREAD_SIZE) -+ if (fp < stack || fp > stack+THREAD_SIZE-8-sizeof(u64)) - return 0; - ip = *(u64 *)(fp+8); - if (!in_sched_functions(ip)) -@@ -659,16 +658,3 @@ long sys_arch_prctl(int code, unsigned l - { - return do_arch_prctl(current, code, addr); - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; --} -diff -urNp linux-2.6.30.4/arch/x86/kernel/process.c linux-2.6.30.4/arch/x86/kernel/process.c ---- linux-2.6.30.4/arch/x86/kernel/process.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/process.c 2009-08-05 19:08:00.495411211 -0400 -@@ -71,7 +71,7 @@ void exit_thread(void) - unsigned long *bp = t->io_bitmap_ptr; - - if (bp) { -- struct tss_struct *tss = &per_cpu(init_tss, get_cpu()); -+ struct tss_struct *tss = init_tss + get_cpu(); - - t->io_bitmap_ptr = NULL; - clear_thread_flag(TIF_IO_BITMAP); -@@ -105,6 +105,9 @@ void flush_thread(void) - - clear_tsk_thread_flag(tsk, TIF_DEBUG); - -+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) -+ loadsegment(gs, 0); -+#endif - tsk->thread.debugreg0 = 0; - tsk->thread.debugreg1 = 0; - tsk->thread.debugreg2 = 0; -diff -urNp linux-2.6.30.4/arch/x86/kernel/ptrace.c linux-2.6.30.4/arch/x86/kernel/ptrace.c ---- linux-2.6.30.4/arch/x86/kernel/ptrace.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/ptrace.c 2009-07-30 09:48:09.952643339 -0400 -@@ -1374,7 +1374,7 @@ void send_sigtrap(struct task_struct *ts - info.si_code = si_code; - - /* User-mode ip? */ -- info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL; -+ info.si_addr = user_mode(regs) ? (void __user *) regs->ip : NULL; - - /* Send us the fake SIGTRAP */ - force_sig_info(SIGTRAP, &info, tsk); -diff -urNp linux-2.6.30.4/arch/x86/kernel/reboot.c linux-2.6.30.4/arch/x86/kernel/reboot.c ---- linux-2.6.30.4/arch/x86/kernel/reboot.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/reboot.c 2009-07-30 09:48:09.952643339 -0400 -@@ -31,7 +31,7 @@ void (*pm_power_off)(void); - EXPORT_SYMBOL(pm_power_off); - - static const struct desc_ptr no_idt = {}; --static int reboot_mode; -+static unsigned short reboot_mode; - enum reboot_type reboot_type = BOOT_KBD; - int reboot_force; - -@@ -249,7 +249,7 @@ static struct dmi_system_id __initdata r - DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z540N"), - }, - }, -- { } -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - static int __init reboot_init(void) -@@ -265,12 +265,12 @@ core_initcall(reboot_init); - controller to pulse the CPU reset line, which is more thorough, but - doesn't work with at least one type of 486 motherboard. It is easy - to stop this code working; hence the copious comments. */ --static const unsigned long long --real_mode_gdt_entries [3] = -+static struct desc_struct -+real_mode_gdt_entries [3] __read_only = - { -- 0x0000000000000000ULL, /* Null descriptor */ -- 0x00009b000000ffffULL, /* 16-bit real-mode 64k code at 0x00000000 */ -- 0x000093000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */ -+ {{{0x00000000, 0x00000000}}}, /* Null descriptor */ -+ {{{0x0000ffff, 0x00009b00}}}, /* 16-bit real-mode 64k code at 0x00000000 */ -+ {{{0x0100ffff, 0x00009300}}} /* 16-bit real-mode 64k data at 0x00000100 */ - }; - - static const struct desc_ptr -@@ -319,7 +319,7 @@ static const unsigned char jump_to_bios - * specified by the code and length parameters. - * We assume that length will aways be less that 100! - */ --void machine_real_restart(const unsigned char *code, int length) -+void machine_real_restart(const unsigned char *code, unsigned int length) - { - local_irq_disable(); - -@@ -339,8 +339,8 @@ void machine_real_restart(const unsigned - /* Remap the kernel at virtual address zero, as well as offset zero - from the kernel segment. This assumes the kernel segment starts at - virtual address PAGE_OFFSET. */ -- memcpy(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -- sizeof(swapper_pg_dir [0]) * KERNEL_PGD_PTRS); -+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); - - /* - * Use `swapper_pg_dir' as our page directory. -@@ -352,16 +352,15 @@ void machine_real_restart(const unsigned - boot)". This seems like a fairly standard thing that gets set by - REBOOT.COM programs, and the previous reset routine did this - too. */ -- *((unsigned short *)0x472) = reboot_mode; -+ *(unsigned short *)(__va(0x472)) = reboot_mode; - - /* For the switch to real mode, copy some code to low memory. It has - to be in the first 64k because it is running in 16-bit mode, and it - has to have the same physical and virtual address, because it turns - off paging. Copy it near the end of the first page, out of the way - of BIOS variables. */ -- memcpy((void *)(0x1000 - sizeof(real_mode_switch) - 100), -- real_mode_switch, sizeof (real_mode_switch)); -- memcpy((void *)(0x1000 - 100), code, length); -+ memcpy(__va(0x1000 - sizeof (real_mode_switch) - 100), real_mode_switch, sizeof (real_mode_switch)); -+ memcpy(__va(0x1000 - 100), code, length); - - /* Set up the IDT for real mode. */ - load_idt(&real_mode_idt); -diff -urNp linux-2.6.30.4/arch/x86/kernel/setup.c linux-2.6.30.4/arch/x86/kernel/setup.c ---- linux-2.6.30.4/arch/x86/kernel/setup.c 2009-07-30 20:32:40.383618032 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/setup.c 2009-07-30 20:32:47.940599318 -0400 -@@ -740,14 +740,14 @@ void __init setup_arch(char **cmdline_p) - - if (!boot_params.hdr.root_flags) - root_mountflags &= ~MS_RDONLY; -- init_mm.start_code = (unsigned long) _text; -- init_mm.end_code = (unsigned long) _etext; -+ init_mm.start_code = ktla_ktva((unsigned long) _text); -+ init_mm.end_code = ktla_ktva((unsigned long) _etext); - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = _brk_end; - -- code_resource.start = virt_to_phys(_text); -- code_resource.end = virt_to_phys(_etext)-1; -- data_resource.start = virt_to_phys(_etext); -+ code_resource.start = virt_to_phys(ktla_ktva(_text)); -+ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1; -+ data_resource.start = virt_to_phys(_data); - data_resource.end = virt_to_phys(_edata)-1; - bss_resource.start = virt_to_phys(&__bss_start); - bss_resource.end = virt_to_phys(&__bss_stop)-1; -diff -urNp linux-2.6.30.4/arch/x86/kernel/setup_percpu.c linux-2.6.30.4/arch/x86/kernel/setup_percpu.c ---- linux-2.6.30.4/arch/x86/kernel/setup_percpu.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/setup_percpu.c 2009-08-05 19:08:00.518752374 -0400 -@@ -25,19 +25,17 @@ - # define DBG(x...) - #endif - -+#ifdef CONFIG_SMP - DEFINE_PER_CPU(int, cpu_number); - EXPORT_PER_CPU_SYMBOL(cpu_number); -+#endif - --#ifdef CONFIG_X86_64 - #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load) --#else --#define BOOT_PERCPU_OFFSET 0 --#endif - - DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET; - EXPORT_PER_CPU_SYMBOL(this_cpu_off); - --unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = { -+unsigned long __per_cpu_offset[NR_CPUS] __read_only = { - [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET, - }; - EXPORT_SYMBOL(__per_cpu_offset); -@@ -336,13 +334,15 @@ out_free_ar: - static inline void setup_percpu_segment(int cpu) - { - #ifdef CONFIG_X86_32 -- struct desc_struct gdt; -- -- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF, -- 0x2 | DESCTYPE_S, 0x8); -- gdt.s = 1; -- write_gdt_entry(get_cpu_gdt_table(cpu), -- GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); -+ struct desc_struct d, *gdt = get_cpu_gdt_table(cpu); -+ unsigned long base = per_cpu_offset(cpu); -+ const unsigned long limit = VMALLOC_END - base - 1; -+ -+ if (limit < 64*1024) -+ pack_descriptor(&d, base, limit, 0x80 | DESCTYPE_S | 0x3, 0x4); -+ else -+ pack_descriptor(&d, base, limit >> PAGE_SHIFT, 0x80 | DESCTYPE_S | 0x3, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PERCPU, &d, DESCTYPE_S); - #endif - } - -@@ -381,6 +381,11 @@ void __init setup_per_cpu_areas(void) - /* alrighty, percpu areas up and running */ - delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; - for_each_possible_cpu(cpu) { -+#ifdef CONFIG_CC_STACKPROTECTOR -+#ifdef CONFIG_x86_32 -+ unsigned long canary = per_cpu(stack_canary, cpu); -+#endif -+#endif - per_cpu_offset(cpu) = delta + cpu * pcpu_unit_size; - per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu); - per_cpu(cpu_number, cpu) = cpu; -@@ -408,6 +413,12 @@ void __init setup_per_cpu_areas(void) - early_per_cpu_map(x86_cpu_to_node_map, cpu); - #endif - #endif -+#ifdef CONFIG_CC_STACKPROTECTOR -+#ifdef CONFIG_x86_32 -+ if (cpu == boot_cpu_id) -+ per_cpu(stack_canary, cpu) = canary; -+#endif -+#endif - /* - * Up to this point, the boot CPU has been using .data.init - * area. Reload any changed state for the boot CPU. -diff -urNp linux-2.6.30.4/arch/x86/kernel/signal.c linux-2.6.30.4/arch/x86/kernel/signal.c ---- linux-2.6.30.4/arch/x86/kernel/signal.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/signal.c 2009-07-30 09:48:09.958625901 -0400 -@@ -198,7 +198,7 @@ static unsigned long align_sigframe(unsi - * Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. - */ -- sp = ((sp + 4) & -16ul) - 4; -+ sp = ((sp - 12) & -16ul) - 4; - #else /* !CONFIG_X86_32 */ - sp = round_down(sp, 16) - 8; - #endif -@@ -308,9 +308,9 @@ __setup_frame(int sig, struct k_sigactio - } - - if (current->mm->context.vdso) -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); -+ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); - else -- restorer = &frame->retcode; -+ restorer = (void __user *)&frame->retcode; - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - -@@ -378,7 +378,7 @@ static int __setup_rt_frame(int sig, str - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. */ -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); -+ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - put_user_ex(restorer, &frame->pretcode); -@@ -790,7 +790,7 @@ static void do_signal(struct pt_regs *re - * X86_32: vm86 regs switched out by assembly code before reaching - * here, so testing against kernel CS suffices. - */ -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - return; - - if (current_thread_info()->status & TS_RESTORE_SIGMASK) -diff -urNp linux-2.6.30.4/arch/x86/kernel/smpboot.c linux-2.6.30.4/arch/x86/kernel/smpboot.c ---- linux-2.6.30.4/arch/x86/kernel/smpboot.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/smpboot.c 2009-07-30 09:48:09.958625901 -0400 -@@ -685,6 +685,10 @@ static int __cpuinit do_boot_cpu(int api - .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done), - }; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - INIT_WORK(&c_idle.work, do_fork_idle); - - alternatives_smp_switch(1); -@@ -727,7 +731,17 @@ do_rest: - (unsigned long)task_stack_page(c_idle.idle) - - KERNEL_STACK_OFFSET + THREAD_SIZE; - #endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - initial_code = (unsigned long)start_secondary; - stack_start.sp = (void *) c_idle.idle->thread.sp; - -diff -urNp linux-2.6.30.4/arch/x86/kernel/step.c linux-2.6.30.4/arch/x86/kernel/step.c ---- linux-2.6.30.4/arch/x86/kernel/step.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/step.c 2009-07-30 09:48:09.958625901 -0400 -@@ -23,22 +23,20 @@ unsigned long convert_ip_to_linear(struc - * and APM bios ones we just ignore here. - */ - if ((seg & SEGMENT_TI_MASK) == SEGMENT_LDT) { -- u32 *desc; -+ struct desc_struct *desc; - unsigned long base; - -- seg &= ~7UL; -+ seg >>= 3; - - mutex_lock(&child->mm->context.lock); -- if (unlikely((seg >> 3) >= child->mm->context.size)) -- addr = -1L; /* bogus selector, access would fault */ -+ if (unlikely(seg >= child->mm->context.size)) -+ addr = -EINVAL; - else { -- desc = child->mm->context.ldt + seg; -- base = ((desc[0] >> 16) | -- ((desc[1] & 0xff) << 16) | -- (desc[1] & 0xff000000)); -+ desc = &child->mm->context.ldt[seg]; -+ base = (desc->a >> 16) | ((desc->b & 0xff) << 16) | (desc->b & 0xff000000); - - /* 16-bit code segment? */ -- if (!((desc[1] >> 22) & 1)) -+ if (!((desc->b >> 22) & 1)) - addr &= 0xffff; - addr += base; - } -@@ -54,6 +52,9 @@ static int is_setting_trap_flag(struct t - unsigned char opcode[15]; - unsigned long addr = convert_ip_to_linear(child, regs); - -+ if (addr == -EINVAL) -+ return 0; -+ - copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); - for (i = 0; i < copied; i++) { - switch (opcode[i]) { -@@ -75,7 +76,7 @@ static int is_setting_trap_flag(struct t - - #ifdef CONFIG_X86_64 - case 0x40 ... 0x4f: -- if (regs->cs != __USER_CS) -+ if ((regs->cs & 0xffff) != __USER_CS) - /* 32-bit mode: register increment */ - return 0; - /* 64-bit mode: REX prefix */ -diff -urNp linux-2.6.30.4/arch/x86/kernel/syscall_table_32.S linux-2.6.30.4/arch/x86/kernel/syscall_table_32.S ---- linux-2.6.30.4/arch/x86/kernel/syscall_table_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/syscall_table_32.S 2009-07-30 09:48:09.959782846 -0400 -@@ -1,3 +1,4 @@ -+.section .rodata,"a",@progbits - ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit -diff -urNp linux-2.6.30.4/arch/x86/kernel/sys_i386_32.c linux-2.6.30.4/arch/x86/kernel/sys_i386_32.c ---- linux-2.6.30.4/arch/x86/kernel/sys_i386_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/sys_i386_32.c 2009-07-30 09:48:09.958625901 -0400 -@@ -24,6 +24,21 @@ - - #include - -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) -+{ -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ - asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -@@ -83,6 +98,205 @@ out: - return err; - } - -+unsigned long -+arch_get_unmapped_area(struct file *filp, unsigned long addr, -+ unsigned long len, unsigned long pgoff, unsigned long flags) -+{ -+ struct mm_struct *mm = current->mm; -+ struct vm_area_struct *vma; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ vma = find_vma(mm, addr); -+ if (pax_task_size - len >= addr && -+ (!vma || addr + len <= vma->vm_start)) -+ return addr; -+ } -+ if (len > mm->cached_hole_size) { -+ start_addr = addr = mm->free_area_cache; -+ } else { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ } -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) { -+ start_addr = 0x00110000UL; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ start_addr += mm->delta_mmap & 0x03FFF000UL; -+#endif -+ -+ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base) -+ start_addr = addr = mm->mmap_base; -+ else -+ addr = start_addr; -+ } -+#endif -+ -+full_search: -+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { -+ /* At this point: (!vma || addr < vma->vm_end). */ -+ if (pax_task_size - len < addr) { -+ /* -+ * Start a new search - just in case we missed -+ * some holes. -+ */ -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ return -ENOMEM; -+ } -+ if (!vma || addr + len <= vma->vm_start) { -+ /* -+ * Remember the place where we stopped the search: -+ */ -+ mm->free_area_cache = addr + len; -+ return addr; -+ } -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ addr = vma->vm_end; -+ if (mm->start_brk <= addr && addr < mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ } -+} -+ -+unsigned long -+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, -+ const unsigned long len, const unsigned long pgoff, -+ const unsigned long flags) -+{ -+ struct vm_area_struct *vma; -+ struct mm_struct *mm = current->mm; -+ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ /* requested length too big for entire address space */ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) -+ goto bottomup; -+#endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ /* requesting a specific address */ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ vma = find_vma(mm, addr); -+ if (pax_task_size - len >= addr && -+ (!vma || addr + len <= vma->vm_start)) -+ return addr; -+ } -+ -+ /* check if free_area_cache is useful for us */ -+ if (len <= mm->cached_hole_size) { -+ mm->cached_hole_size = 0; -+ mm->free_area_cache = mm->mmap_base; -+ } -+ -+ /* either no address requested or can't fit in requested address hole */ -+ addr = mm->free_area_cache; -+ -+ /* make sure it can fit in the remaining address space */ -+ if (addr > len) { -+ vma = find_vma(mm, addr-len); -+ if (!vma || addr <= vma->vm_start) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr-len); -+ } -+ -+ if (mm->mmap_base < len) -+ goto bottomup; -+ -+ addr = mm->mmap_base-len; -+ -+ do { -+ /* -+ * Lookup failure means no vma is above this address, -+ * else if new region fits below vma->vm_start, -+ * return with success: -+ */ -+ vma = find_vma(mm, addr); -+ if (!vma || addr+len <= vma->vm_start) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr); -+ -+ /* remember the largest hole we saw so far */ -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ -+ /* try just below the current vma->vm_start */ -+ addr = vma->vm_start-len; -+ } while (len < vma->vm_start); -+ -+bottomup: -+ /* -+ * A failed mmap() very likely causes application failure, -+ * so fall back to the bottom-up function here. This scenario -+ * can happen with large stack limits and large mmap() -+ * allocations. -+ */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; -+ mm->cached_hole_size = ~0UL; -+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); -+ /* -+ * Restore the topdown base: -+ */ -+ mm->mmap_base = base; -+ mm->free_area_cache = base; -+ mm->cached_hole_size = ~0UL; -+ -+ return addr; -+} - - struct sel_arg_struct { - unsigned long n; -diff -urNp linux-2.6.30.4/arch/x86/kernel/sys_x86_64.c linux-2.6.30.4/arch/x86/kernel/sys_x86_64.c ---- linux-2.6.30.4/arch/x86/kernel/sys_x86_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/sys_x86_64.c 2009-07-30 09:48:09.959782846 -0400 -@@ -47,8 +47,8 @@ out: - return error; - } - --static void find_start_end(unsigned long flags, unsigned long *begin, -- unsigned long *end) -+static void find_start_end(struct mm_struct *mm, unsigned long flags, -+ unsigned long *begin, unsigned long *end) - { - if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) { - unsigned long new_begin; -@@ -67,7 +67,7 @@ static void find_start_end(unsigned long - *begin = new_begin; - } - } else { -- *begin = TASK_UNMAPPED_BASE; -+ *begin = mm->mmap_base; - *end = TASK_SIZE; - } - } -@@ -84,11 +84,15 @@ arch_get_unmapped_area(struct file *filp - if (flags & MAP_FIXED) - return addr; - -- find_start_end(flags, &begin, &end); -+ find_start_end(mm, flags, &begin, &end); - - if (len > end) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); -@@ -143,7 +147,7 @@ arch_get_unmapped_area_topdown(struct fi - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0; -+ unsigned long base = mm->mmap_base, addr = addr0; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -156,6 +160,10 @@ arch_get_unmapped_area_topdown(struct fi - if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) - goto bottomup; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -@@ -213,13 +221,21 @@ bottomup: - * can happen with large stack limits and large mmap() - * allocations. - */ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; -- mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ -- mm->free_area_cache = mm->mmap_base; -+ mm->mmap_base = base; -+ mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - - return addr; -diff -urNp linux-2.6.30.4/arch/x86/kernel/time_32.c linux-2.6.30.4/arch/x86/kernel/time_32.c ---- linux-2.6.30.4/arch/x86/kernel/time_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/time_32.c 2009-07-30 09:48:09.959782846 -0400 -@@ -47,22 +47,32 @@ unsigned long profile_pc(struct pt_regs - unsigned long pc = instruction_pointer(regs); - - #ifdef CONFIG_SMP -- if (!user_mode_vm(regs) && in_lock_functions(pc)) { -+ if (!user_mode(regs) && in_lock_functions(pc)) { - #ifdef CONFIG_FRAME_POINTER -- return *(unsigned long *)(regs->bp + sizeof(long)); -+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long))); - #else - unsigned long *sp = (unsigned long *)®s->sp; - - /* Return address is either directly at stack pointer - or above a saved flags. Eflags has bits 22-31 zero, - kernel addresses don't. */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return ktla_ktva(sp[0]); -+#else - if (sp[0] >> 22) - return sp[0]; - if (sp[1] >> 22) - return sp[1]; - #endif -+ -+#endif - } - #endif -+ -+ if (!user_mode(regs)) -+ pc = ktla_ktva(pc); -+ - return pc; - } - EXPORT_SYMBOL(profile_pc); -diff -urNp linux-2.6.30.4/arch/x86/kernel/time_64.c linux-2.6.30.4/arch/x86/kernel/time_64.c ---- linux-2.6.30.4/arch/x86/kernel/time_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/time_64.c 2009-07-30 09:48:09.960740129 -0400 -@@ -25,8 +25,6 @@ - #include - #include - --volatile unsigned long __jiffies __section_jiffies = INITIAL_JIFFIES; -- - unsigned long profile_pc(struct pt_regs *regs) - { - unsigned long pc = instruction_pointer(regs); -@@ -34,7 +32,7 @@ unsigned long profile_pc(struct pt_regs - /* Assume the lock function has either no stack frame or a copy - of flags from PUSHF - Eflags always has bits 22 and up cleared unlike kernel addresses. */ -- if (!user_mode_vm(regs) && in_lock_functions(pc)) { -+ if (!user_mode(regs) && in_lock_functions(pc)) { - #ifdef CONFIG_FRAME_POINTER - return *(unsigned long *)(regs->bp + sizeof(long)); - #else -diff -urNp linux-2.6.30.4/arch/x86/kernel/tls.c linux-2.6.30.4/arch/x86/kernel/tls.c ---- linux-2.6.30.4/arch/x86/kernel/tls.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/tls.c 2009-07-30 09:48:09.960740129 -0400 -@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE)) -+ return -EINVAL; -+#endif -+ - set_tls_desc(p, idx, &info, 1); - - return 0; -diff -urNp linux-2.6.30.4/arch/x86/kernel/traps.c linux-2.6.30.4/arch/x86/kernel/traps.c ---- linux-2.6.30.4/arch/x86/kernel/traps.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/traps.c 2009-07-30 09:48:09.961532028 -0400 -@@ -70,14 +70,6 @@ asmlinkage int system_call(void); - - /* Do we ignore FPU interrupts ? */ - char ignore_fpu_irq; -- --/* -- * The IDT has to be page-aligned to simplify the Pentium -- * F0 0F bug workaround.. We have a special link segment -- * for this. -- */ --gate_desc idt_table[256] -- __attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, }; - #endif - - DECLARE_BITMAP(used_vectors, NR_VECTORS); -@@ -115,7 +107,7 @@ static inline void preempt_conditional_c - static inline void - die_if_kernel(const char *str, struct pt_regs *regs, long err) - { -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - die(str, regs, err); - } - #endif -@@ -127,7 +119,7 @@ do_trap(int trapnr, int signr, char *str - struct task_struct *tsk = current; - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - /* - * traps 0, 1, 3, 4, and 5 should be forwarded to vm86. - * On nmi (interrupt 2), do_trap should not be called. -@@ -138,7 +130,7 @@ do_trap(int trapnr, int signr, char *str - } - #endif - -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto kernel_trap; - - #ifdef CONFIG_X86_32 -@@ -161,7 +153,7 @@ trap_signal: - printk_ratelimit()) { - printk(KERN_INFO - "%s[%d] trap %s ip:%lx sp:%lx error:%lx", -- tsk->comm, tsk->pid, str, -+ tsk->comm, task_pid_nr(tsk), str, - regs->ip, regs->sp, error_code); - print_vma_addr(" in ", regs->ip); - printk("\n"); -@@ -180,6 +172,12 @@ kernel_trap: - tsk->thread.trap_no = trapnr; - die(str, regs, error_code); - } -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ if (trapnr == 4) -+ pax_report_refcount_overflow(regs); -+#endif -+ - return; - - #ifdef CONFIG_X86_32 -@@ -268,14 +266,30 @@ do_general_protection(struct pt_regs *re - conditional_sti(regs); - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto gp_in_vm86; - #endif - - tsk = current; -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto gp_in_kernel; - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!nx_enabled && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) { -+ struct mm_struct *mm = tsk->mm; -+ unsigned long limit; -+ -+ down_write(&mm->mmap_sem); -+ limit = mm->context.user_cs_limit; -+ if (limit < TASK_SIZE) { -+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC); -+ up_write(&mm->mmap_sem); -+ return; -+ } -+ up_write(&mm->mmap_sem); -+ } -+#endif -+ - tsk->thread.error_code = error_code; - tsk->thread.trap_no = 13; - -@@ -308,6 +322,13 @@ gp_in_kernel: - if (notify_die(DIE_GPF, "general protection fault", regs, - error_code, 13, SIGSEGV) == NOTIFY_STOP) - return; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if ((regs->cs & 0xFFFF) == __KERNEL_CS) -+ die("PAX: suspicious general protection fault", regs, error_code); -+ else -+#endif -+ - die("general protection fault", regs, error_code); - } - -@@ -554,7 +575,7 @@ dotraplinkage void __kprobes do_debug(st - } - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto debug_vm86; - #endif - -@@ -566,7 +587,7 @@ dotraplinkage void __kprobes do_debug(st - * kernel space (but re-enable TF when returning to user mode). - */ - if (condition & DR_STEP) { -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto clear_TF_reenable; - } - -@@ -753,7 +774,7 @@ do_simd_coprocessor_error(struct pt_regs - * Handle strange cache flush from user space exception - * in all other cases. This is undocumented behaviour. - */ -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - handle_vm86_fault((struct kernel_vm86_regs *)regs, error_code); - return; - } -@@ -782,19 +803,14 @@ do_spurious_interrupt_bug(struct pt_regs - #ifdef CONFIG_X86_32 - unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp) - { -- struct desc_struct *gdt = get_cpu_gdt_table(smp_processor_id()); - unsigned long base = (kesp - uesp) & -THREAD_SIZE; - unsigned long new_kesp = kesp - base; - unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT; -- __u64 desc = *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS]; -+ struct desc_struct ss; - - /* Set up base for espfix segment */ -- desc &= 0x00f0ff0000000000ULL; -- desc |= ((((__u64)base) << 16) & 0x000000ffffff0000ULL) | -- ((((__u64)base) << 32) & 0xff00000000000000ULL) | -- ((((__u64)lim_pages) << 32) & 0x000f000000000000ULL) | -- (lim_pages & 0xffff); -- *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS] = desc; -+ pack_descriptor(&ss, base, lim_pages, 0x93, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(smp_processor_id()), GDT_ENTRY_ESPFIX_SS, &ss, DESCTYPE_S); - - return new_kesp; - } -diff -urNp linux-2.6.30.4/arch/x86/kernel/tsc.c linux-2.6.30.4/arch/x86/kernel/tsc.c ---- linux-2.6.30.4/arch/x86/kernel/tsc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/tsc.c 2009-07-30 09:48:09.961532028 -0400 -@@ -772,7 +772,7 @@ static struct dmi_system_id __initdata b - DMI_MATCH(DMI_BOARD_NAME, "2635FA0"), - }, - }, -- {} -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - static void __init check_system_tsc_reliable(void) -diff -urNp linux-2.6.30.4/arch/x86/kernel/vm86_32.c linux-2.6.30.4/arch/x86/kernel/vm86_32.c ---- linux-2.6.30.4/arch/x86/kernel/vm86_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/vm86_32.c 2009-07-30 09:48:09.961532028 -0400 -@@ -148,7 +148,7 @@ struct pt_regs *save_v86_state(struct ke - do_exit(SIGSEGV); - } - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - current->thread.sp0 = current->thread.saved_sp0; - current->thread.sysenter_cs = __KERNEL_CS; - load_sp0(tss, ¤t->thread); -@@ -324,7 +324,7 @@ static void do_sys_vm86(struct kernel_vm - tsk->thread.saved_fs = info->regs32->fs; - tsk->thread.saved_gs = get_user_gs(info->regs32); - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0; - if (cpu_has_sep) - tsk->thread.sysenter_cs = 0; -diff -urNp linux-2.6.30.4/arch/x86/kernel/vmi_32.c linux-2.6.30.4/arch/x86/kernel/vmi_32.c ---- linux-2.6.30.4/arch/x86/kernel/vmi_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/vmi_32.c 2009-08-12 21:15:21.104308164 -0400 -@@ -102,18 +102,43 @@ static unsigned patch_internal(int call, - { - u64 reloc; - struct vmi_relocation_info *const rel = (struct vmi_relocation_info *)&reloc; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - reloc = call_vrom_long_func(vmi_rom, get_reloc, call); - switch(rel->type) { - case VMI_RELOCATION_CALL_REL: - BUG_ON(len < 5); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(char *)insnbuf = MNEM_CALL; - patch_offset(insnbuf, ip, (unsigned long)rel->eip); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - return 5; - - case VMI_RELOCATION_JUMP_REL: - BUG_ON(len < 5); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(char *)insnbuf = MNEM_JMP; - patch_offset(insnbuf, ip, (unsigned long)rel->eip); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - return 5; - - case VMI_RELOCATION_NOP: -@@ -404,13 +429,13 @@ static void vmi_set_pud(pud_t *pudp, pud - - static void vmi_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) - { -- const pte_t pte = { .pte = 0 }; -+ const pte_t pte = __pte(0ULL); - vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0)); - } - - static void vmi_pmd_clear(pmd_t *pmd) - { -- const pte_t pte = { .pte = 0 }; -+ const pte_t pte = __pte(0ULL); - vmi_ops.set_pte(pte, (pte_t *)pmd, VMI_PAGE_PD); - } - #endif -@@ -438,10 +463,10 @@ vmi_startup_ipi_hook(int phys_apicid, un - ap.ss = __KERNEL_DS; - ap.esp = (unsigned long) start_esp; - -- ap.ds = __USER_DS; -- ap.es = __USER_DS; -+ ap.ds = __KERNEL_DS; -+ ap.es = __KERNEL_DS; - ap.fs = __KERNEL_PERCPU; -- ap.gs = 0; -+ ap.gs = __KERNEL_STACK_CANARY; - - ap.eflags = 0; - -@@ -634,12 +659,20 @@ static inline int __init activate_vmi(vo - u64 reloc; - const struct vmi_relocation_info *rel = (struct vmi_relocation_info *)&reloc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - if (call_vrom_func(vmi_rom, vmi_init) != 0) { - printk(KERN_ERR "VMI ROM failed to initialize!"); - return 0; - } - savesegment(cs, kernel_cs); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - pv_info.paravirt_enabled = 1; - pv_info.kernel_rpl = kernel_cs & SEGMENT_RPL_MASK; - pv_info.name = "vmi"; -@@ -830,6 +863,10 @@ static inline int __init activate_vmi(vo - - para_fill(pv_irq_ops.safe_halt, Halt); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * Alternative instruction rewriting doesn't happen soon enough - * to convert VMI_IRET to a call instead of a jump; so we have -diff -urNp linux-2.6.30.4/arch/x86/kernel/vmlinux_32.lds.S linux-2.6.30.4/arch/x86/kernel/vmlinux_32.lds.S ---- linux-2.6.30.4/arch/x86/kernel/vmlinux_32.lds.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/vmlinux_32.lds.S 2009-07-30 09:48:09.962543704 -0400 -@@ -15,6 +15,20 @@ - #include - #include - #include -+#include -+ -+#ifdef CONFIG_X86_PAE -+#define PMD_SHIFT 21 -+#else -+#define PMD_SHIFT 22 -+#endif -+#define PMD_SIZE (1 << PMD_SHIFT) -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#define __KERNEL_TEXT_OFFSET (__PAGE_OFFSET + (((____LOAD_PHYSICAL_ADDR + 2*(PMD_SIZE - 1)) - 1) & ~(PMD_SIZE - 1))) -+#else -+#define __KERNEL_TEXT_OFFSET 0 -+#endif - - OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") - OUTPUT_ARCH(i386) -@@ -22,82 +36,23 @@ ENTRY(phys_startup_32) - jiffies = jiffies_64; - - PHDRS { -- text PT_LOAD FLAGS(5); /* R_E */ -- data PT_LOAD FLAGS(7); /* RWE */ -- note PT_NOTE FLAGS(0); /* ___ */ -+ initdata PT_LOAD FLAGS(6); /* RW_ */ -+ percpu PT_LOAD FLAGS(6); /* RW_ */ -+ inittext PT_LOAD FLAGS(5); /* R_E */ -+ text PT_LOAD FLAGS(5); /* R_E */ -+ rodata PT_LOAD FLAGS(4); /* R__ */ -+ data PT_LOAD FLAGS(6); /* RW_ */ -+ note PT_NOTE FLAGS(0); /* ___ */ - } - SECTIONS - { -- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR; -- phys_startup_32 = startup_32 - LOAD_OFFSET; -+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR; - -- .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) { -- _text = .; /* Text and read-only data */ -- *(.text.head) -- } :text = 0x9090 -- -- /* read-only */ -- .text : AT(ADDR(.text) - LOAD_OFFSET) { -- . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */ -- *(.text.page_aligned) -- TEXT_TEXT -- SCHED_TEXT -- LOCK_TEXT -- KPROBES_TEXT -- IRQENTRY_TEXT -- *(.fixup) -- *(.gnu.warning) -- _etext = .; /* End of text section */ -- } :text = 0x9090 -- -- NOTES :text :note -- -- . = ALIGN(16); /* Exception table */ -- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { -- __start___ex_table = .; -- *(__ex_table) -- __stop___ex_table = .; -- } :text = 0x9090 -- -- RODATA -- -- /* writeable */ -- . = ALIGN(PAGE_SIZE); -- .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */ -- DATA_DATA -- CONSTRUCTORS -- } :data -- -- . = ALIGN(PAGE_SIZE); -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -- __nosave_begin = .; -- *(.data.nosave) -- . = ALIGN(PAGE_SIZE); -- __nosave_end = .; -- } -- -- . = ALIGN(PAGE_SIZE); -- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -- *(.data.page_aligned) -- *(.data.idt) -- } -- -- . = ALIGN(32); -- .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { -- *(.data.cacheline_aligned) -- } -- -- /* rarely changed data like cpu maps */ -- . = ALIGN(32); -- .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { -- *(.data.read_mostly) -- _edata = .; /* End of data section */ -- } -- -- . = ALIGN(THREAD_SIZE); /* init_task */ -- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -- *(.data.init_task) -- } -+ .text.startup : AT(ADDR(.text.startup) - LOAD_OFFSET) { -+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET; -+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+ *(.text.startup) -+ } :initdata - - /* might get freed after init */ - . = ALIGN(PAGE_SIZE); -@@ -115,14 +70,8 @@ SECTIONS - . = ALIGN(PAGE_SIZE); - - /* will be freed after init */ -- . = ALIGN(PAGE_SIZE); /* Init code and data */ -- .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { -- __init_begin = .; -- _sinittext = .; -- INIT_TEXT -- _einittext = .; -- } - .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { -+ __init_begin = .; - INIT_DATA - } - . = ALIGN(16); -@@ -162,11 +111,6 @@ SECTIONS - *(.parainstructions) - __parainstructions_end = .; - } -- /* .exit.text is discard at runtime, not link time, to deal with references -- from .altinstructions and .eh_frame */ -- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { -- EXIT_TEXT -- } - .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { - EXIT_DATA - } -@@ -178,12 +122,130 @@ SECTIONS - __initramfs_end = .; - } - #endif -- PERCPU(PAGE_SIZE) - . = ALIGN(PAGE_SIZE); -+ PERCPU_VADDR(0, :percpu) -+ . = ALIGN(PAGE_SIZE); -+ /* freed after init ends here */ -+ -+ . = ALIGN(PAGE_SIZE); /* Init code and data */ -+ .init.text (. - __KERNEL_TEXT_OFFSET) : AT(ADDR(.init.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ _sinittext = .; -+ INIT_TEXT -+ _einittext = .; -+ } :inittext -+ -+ /* .exit.text is discard at runtime, not link time, to deal with references -+ from .altinstructions and .eh_frame */ -+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ EXIT_TEXT -+ } -+ -+ .filler : AT(ADDR(.filler) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ BYTE(0) -+ . = ALIGN(2*PMD_SIZE) - 1; -+ } -+ - /* freed after init ends here */ - -+ .text.head : AT(ADDR(.text.head) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ __init_end = . + __KERNEL_TEXT_OFFSET; -+ KERNEL_TEXT_OFFSET = . + __KERNEL_TEXT_OFFSET; -+ _text = .; /* Text and read-only data */ -+ *(.text.head) -+ } :text = 0x9090 -+ -+ /* read-only */ -+ .text : AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */ -+ *(.text.page_aligned) -+ TEXT_TEXT -+ SCHED_TEXT -+ LOCK_TEXT -+ KPROBES_TEXT -+ IRQENTRY_TEXT -+ *(.fixup) -+ *(.gnu.warning) -+ _etext = .; /* End of text section */ -+ } :text = 0x9090 -+ -+ . += __KERNEL_TEXT_OFFSET; -+ -+ . = ALIGN(4096); -+ NOTES :rodata :note -+ -+ . = ALIGN(16); /* Exception table */ -+ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { -+ __start___ex_table = .; -+ *(__ex_table) -+ __stop___ex_table = .; -+ } :rodata -+ -+ RO_DATA(PAGE_SIZE) -+ -+ . = ALIGN(PAGE_SIZE); -+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) { -+ *(.idt) -+ . = ALIGN(PAGE_SIZE); -+ *(.empty_zero_page) -+ *(.swapper_pg_pmd) -+ *(.swapper_pg_dir) -+ -+#if defined(CONFIG_PAX_KERNEXEC) && !defined(CONFIG_MODULES) -+ . = ALIGN(PMD_SIZE); -+#endif -+ -+ } -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES) -+ . = ALIGN(PAGE_SIZE); -+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) { -+ MODULES_VADDR = .; -+ BYTE(0) -+ . += (6 * 1024 * 1024); -+ . = ALIGN(PMD_SIZE); -+ MODULES_END = . - 1; -+ } -+#endif -+ -+ /* writeable */ -+ . = ALIGN(PAGE_SIZE); -+ .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */ -+ _data = .; -+ DATA_DATA -+ CONSTRUCTORS -+ } :data -+ -+ . = ALIGN(PAGE_SIZE); -+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -+ __nosave_begin = .; -+ *(.data.nosave) -+ . = ALIGN(PAGE_SIZE); -+ __nosave_end = .; -+ } -+ -+ . = ALIGN(PAGE_SIZE); -+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -+ *(.data.page_aligned) -+ } -+ -+ . = ALIGN(32); -+ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { -+ *(.data.cacheline_aligned) -+ } -+ -+ /* rarely changed data like cpu maps */ -+ . = ALIGN(32); -+ .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { -+ *(.data.read_mostly) -+ _edata = .; /* End of data section */ -+ } -+ -+ . = ALIGN(THREAD_SIZE); /* init_task */ -+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -+ *(.data.init_task) -+ } -+ - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { -- __init_end = .; - __bss_start = .; /* BSS */ - *(.bss.page_aligned) - *(.bss) -diff -urNp linux-2.6.30.4/arch/x86/kernel/vmlinux_64.lds.S linux-2.6.30.4/arch/x86/kernel/vmlinux_64.lds.S ---- linux-2.6.30.4/arch/x86/kernel/vmlinux_64.lds.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/vmlinux_64.lds.S 2009-08-01 08:46:06.438873305 -0400 -@@ -13,11 +13,11 @@ - OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64") - OUTPUT_ARCH(i386:x86-64) - ENTRY(phys_startup_64) --jiffies_64 = jiffies; -+jiffies = jiffies_64; - PHDRS { - text PT_LOAD FLAGS(5); /* R_E */ -- data PT_LOAD FLAGS(7); /* RWE */ -- user PT_LOAD FLAGS(7); /* RWE */ -+ data PT_LOAD FLAGS(6); /* RW_ */ -+ user PT_LOAD FLAGS(5); /* R_E */ - data.init PT_LOAD FLAGS(7); /* RWE */ - #ifdef CONFIG_SMP - percpu PT_LOAD FLAGS(7); /* RWE */ -@@ -54,14 +54,18 @@ SECTIONS - __stop___ex_table = .; - } :text = 0x9090 - -- RODATA -+ RO_DATA(PAGE_SIZE) - -+#ifdef CONFIG_PAX_KERNEXEC -+ . = ALIGN(2*1024*1024); /* Align data segment to PMD size boundary */ -+#else - . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */ -+#endif - /* Data */ - .data : AT(ADDR(.data) - LOAD_OFFSET) { -+ _data = .; - DATA_DATA - CONSTRUCTORS -- _edata = .; /* End of data section */ - } :data - - -@@ -75,9 +79,28 @@ SECTIONS - *(.data.read_mostly) - } - -+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -+ . = ALIGN(THREAD_SIZE); /* init_task */ -+ *(.data.init_task) -+ } -+ -+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -+ . = ALIGN(PAGE_SIZE); -+ *(.data.page_aligned) -+ } -+ -+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -+ . = ALIGN(PAGE_SIZE); -+ __nosave_begin = .; -+ *(.data.nosave) -+ . = ALIGN(PAGE_SIZE); -+ __nosave_end = .; -+ _edata = .; /* End of data section */ -+ } -+ - #define VSYSCALL_ADDR (-10*1024*1024) --#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095)) --#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095)) -+#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095)) -+#define VSYSCALL_VIRT_ADDR ((ADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095)) - - #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR) - #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET) -@@ -108,10 +131,6 @@ SECTIONS - .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) } - vgetcpu_mode = VVIRT(.vgetcpu_mode); - -- . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); -- .jiffies : AT(VLOAD(.jiffies)) { *(.jiffies) } -- jiffies = VVIRT(.jiffies); -- - .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) - { *(.vsyscall_3) } - -@@ -125,16 +144,6 @@ SECTIONS - #undef VVIRT_OFFSET - #undef VVIRT - -- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -- . = ALIGN(THREAD_SIZE); /* init_task */ -- *(.data.init_task) -- }:data.init -- -- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -- . = ALIGN(PAGE_SIZE); -- *(.data.page_aligned) -- } -- - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - /* might get freed after init */ - . = ALIGN(PAGE_SIZE); -@@ -144,7 +153,7 @@ SECTIONS - __smp_locks_end = .; - . = ALIGN(PAGE_SIZE); - __smp_alt_end = .; -- } -+ }:data.init - - . = ALIGN(PAGE_SIZE); /* Init code and data */ - __init_begin = .; /* paired with __init_end */ -@@ -233,27 +242,20 @@ SECTIONS - . = ALIGN(PAGE_SIZE); - __init_end = .; - -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -- . = ALIGN(PAGE_SIZE); -- __nosave_begin = .; -- *(.data.nosave) -- . = ALIGN(PAGE_SIZE); -- __nosave_end = .; -- } :data.init2 /* use another section data.init2, see PERCPU_VADDR() above */ -- - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { - . = ALIGN(PAGE_SIZE); - __bss_start = .; /* BSS */ - *(.bss.page_aligned) - *(.bss) - __bss_stop = .; -- } -+ } :data.init2 - - .brk : AT(ADDR(.brk) - LOAD_OFFSET) { - . = ALIGN(PAGE_SIZE); - __brk_base = . ; - . += 64 * 1024 ; /* 64k alignment slop space */ - *(.brk_reservation) /* areas brk users have reserved */ -+ . = ALIGN(2*1024*1024); - __brk_limit = . ; - } - -@@ -276,7 +278,6 @@ SECTIONS - * for the boot processor. - */ - #define INIT_PER_CPU(x) init_per_cpu__##x = per_cpu__##x + __per_cpu_load --INIT_PER_CPU(gdt_page); - INIT_PER_CPU(irq_stack_union); - - /* -diff -urNp linux-2.6.30.4/arch/x86/kernel/vsyscall_64.c linux-2.6.30.4/arch/x86/kernel/vsyscall_64.c ---- linux-2.6.30.4/arch/x86/kernel/vsyscall_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/vsyscall_64.c 2009-07-30 09:48:09.963690654 -0400 -@@ -79,6 +79,7 @@ void update_vsyscall(struct timespec *wa - - write_seqlock_irqsave(&vsyscall_gtod_data.lock, flags); - /* copy vsyscall data */ -+ strlcpy(vsyscall_gtod_data.clock.name, clock->name, sizeof vsyscall_gtod_data.clock.name); - vsyscall_gtod_data.clock.vread = clock->vread; - vsyscall_gtod_data.clock.cycle_last = clock->cycle_last; - vsyscall_gtod_data.clock.mask = clock->mask; -@@ -201,7 +202,7 @@ vgetcpu(unsigned *cpu, unsigned *node, s - We do this here because otherwise user space would do it on - its own in a likely inferior way (no access to jiffies). - If you don't like it pass NULL. */ -- if (tcache && tcache->blob[0] == (j = __jiffies)) { -+ if (tcache && tcache->blob[0] == (j = jiffies)) { - p = tcache->blob[1]; - } else if (__vgetcpu_mode == VGETCPU_RDTSCP) { - /* Load per CPU data from RDTSCP */ -@@ -240,13 +241,13 @@ static ctl_table kernel_table2[] = { - .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = vsyscall_sysctl_change }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static ctl_table kernel_root_table2[] = { - { .ctl_name = CTL_KERN, .procname = "kernel", .mode = 0555, - .child = kernel_table2 }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - #endif - -diff -urNp linux-2.6.30.4/arch/x86/kernel/x8664_ksyms_64.c linux-2.6.30.4/arch/x86/kernel/x8664_ksyms_64.c ---- linux-2.6.30.4/arch/x86/kernel/x8664_ksyms_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kernel/x8664_ksyms_64.c 2009-07-30 09:48:09.963690654 -0400 -@@ -30,8 +30,6 @@ EXPORT_SYMBOL(__put_user_8); - - EXPORT_SYMBOL(copy_user_generic); - EXPORT_SYMBOL(__copy_user_nocache); --EXPORT_SYMBOL(copy_from_user); --EXPORT_SYMBOL(copy_to_user); - EXPORT_SYMBOL(__copy_from_user_inatomic); - - EXPORT_SYMBOL(copy_page); -diff -urNp linux-2.6.30.4/arch/x86/kvm/svm.c linux-2.6.30.4/arch/x86/kvm/svm.c ---- linux-2.6.30.4/arch/x86/kvm/svm.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kvm/svm.c 2009-07-30 09:48:09.964534231 -0400 -@@ -2226,7 +2226,19 @@ static void reload_tss(struct kvm_vcpu * - int cpu = raw_smp_processor_id(); - - struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - load_TR_desc(); - } - -@@ -2622,7 +2634,7 @@ static int svm_get_mt_mask_shift(void) - return 0; - } - --static struct kvm_x86_ops svm_x86_ops = { -+static const struct kvm_x86_ops svm_x86_ops = { - .cpu_has_kvm_support = has_svm, - .disabled_by_bios = is_disabled, - .hardware_setup = svm_hardware_setup, -diff -urNp linux-2.6.30.4/arch/x86/kvm/vmx.c linux-2.6.30.4/arch/x86/kvm/vmx.c ---- linux-2.6.30.4/arch/x86/kvm/vmx.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kvm/vmx.c 2009-07-30 09:48:09.965634801 -0400 -@@ -506,9 +506,23 @@ static void reload_tss(void) - struct descriptor_table gdt; - struct desc_struct *descs; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - kvm_get_gdt(&gdt); - descs = (void *)gdt.base; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - load_TR_desc(); - } - -@@ -2192,7 +2206,7 @@ static int vmx_vcpu_setup(struct vcpu_vm - vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */ - - asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return)); -- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */ -+ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */ - vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0); - vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0); - vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0); -@@ -3494,6 +3508,12 @@ static void vmx_vcpu_run(struct kvm_vcpu - "jmp .Lkvm_vmx_return \n\t" - ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" - ".Lkvm_vmx_return: " -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ "ljmp %[cs],$.Lkvm_vmx_return2\n\t" -+ ".Lkvm_vmx_return2: " -+#endif -+ - /* Save guest registers, load host registers, keep flags */ - "xchg %0, (%%"R"sp) \n\t" - "mov %%"R"ax, %c[rax](%0) \n\t" -@@ -3540,6 +3560,11 @@ static void vmx_vcpu_run(struct kvm_vcpu - [r15]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R15])), - #endif - [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)) -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ ,[cs]"i"(__KERNEL_CS) -+#endif -+ - : "cc", "memory" - , R"bx", R"di", R"si" - #ifdef CONFIG_X86_64 -@@ -3558,7 +3583,7 @@ static void vmx_vcpu_run(struct kvm_vcpu - - vmx_update_window_states(vcpu); - -- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); -+ asm("mov %0, %%ds; mov %0, %%es" : : "r"(__KERNEL_DS)); - vmx->launched = 1; - - intr_info = vmcs_read32(VM_EXIT_INTR_INFO); -@@ -3694,7 +3719,7 @@ static int vmx_get_mt_mask_shift(void) - return VMX_EPT_MT_EPTE_SHIFT; - } - --static struct kvm_x86_ops vmx_x86_ops = { -+static const struct kvm_x86_ops vmx_x86_ops = { - .cpu_has_kvm_support = cpu_has_kvm_support, - .disabled_by_bios = vmx_disabled_by_bios, - .hardware_setup = hardware_setup, -diff -urNp linux-2.6.30.4/arch/x86/kvm/x86.c linux-2.6.30.4/arch/x86/kvm/x86.c ---- linux-2.6.30.4/arch/x86/kvm/x86.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/kvm/x86.c 2009-07-30 09:48:09.966523935 -0400 -@@ -73,44 +73,44 @@ static int kvm_dev_ioctl_get_supported_c - struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu, - u32 function, u32 index); - --struct kvm_x86_ops *kvm_x86_ops; -+const struct kvm_x86_ops *kvm_x86_ops; - EXPORT_SYMBOL_GPL(kvm_x86_ops); - - struct kvm_stats_debugfs_item debugfs_entries[] = { -- { "pf_fixed", VCPU_STAT(pf_fixed) }, -- { "pf_guest", VCPU_STAT(pf_guest) }, -- { "tlb_flush", VCPU_STAT(tlb_flush) }, -- { "invlpg", VCPU_STAT(invlpg) }, -- { "exits", VCPU_STAT(exits) }, -- { "io_exits", VCPU_STAT(io_exits) }, -- { "mmio_exits", VCPU_STAT(mmio_exits) }, -- { "signal_exits", VCPU_STAT(signal_exits) }, -- { "irq_window", VCPU_STAT(irq_window_exits) }, -- { "nmi_window", VCPU_STAT(nmi_window_exits) }, -- { "halt_exits", VCPU_STAT(halt_exits) }, -- { "halt_wakeup", VCPU_STAT(halt_wakeup) }, -- { "hypercalls", VCPU_STAT(hypercalls) }, -- { "request_irq", VCPU_STAT(request_irq_exits) }, -- { "request_nmi", VCPU_STAT(request_nmi_exits) }, -- { "irq_exits", VCPU_STAT(irq_exits) }, -- { "host_state_reload", VCPU_STAT(host_state_reload) }, -- { "efer_reload", VCPU_STAT(efer_reload) }, -- { "fpu_reload", VCPU_STAT(fpu_reload) }, -- { "insn_emulation", VCPU_STAT(insn_emulation) }, -- { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) }, -- { "irq_injections", VCPU_STAT(irq_injections) }, -- { "nmi_injections", VCPU_STAT(nmi_injections) }, -- { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) }, -- { "mmu_pte_write", VM_STAT(mmu_pte_write) }, -- { "mmu_pte_updated", VM_STAT(mmu_pte_updated) }, -- { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) }, -- { "mmu_flooded", VM_STAT(mmu_flooded) }, -- { "mmu_recycled", VM_STAT(mmu_recycled) }, -- { "mmu_cache_miss", VM_STAT(mmu_cache_miss) }, -- { "mmu_unsync", VM_STAT(mmu_unsync) }, -- { "mmu_unsync_global", VM_STAT(mmu_unsync_global) }, -- { "remote_tlb_flush", VM_STAT(remote_tlb_flush) }, -- { "largepages", VM_STAT(lpages) }, -+ { "pf_fixed", VCPU_STAT(pf_fixed), NULL }, -+ { "pf_guest", VCPU_STAT(pf_guest), NULL }, -+ { "tlb_flush", VCPU_STAT(tlb_flush), NULL }, -+ { "invlpg", VCPU_STAT(invlpg), NULL }, -+ { "exits", VCPU_STAT(exits), NULL }, -+ { "io_exits", VCPU_STAT(io_exits), NULL }, -+ { "mmio_exits", VCPU_STAT(mmio_exits), NULL }, -+ { "signal_exits", VCPU_STAT(signal_exits), NULL }, -+ { "irq_window", VCPU_STAT(irq_window_exits), NULL }, -+ { "nmi_window", VCPU_STAT(nmi_window_exits), NULL }, -+ { "halt_exits", VCPU_STAT(halt_exits), NULL }, -+ { "halt_wakeup", VCPU_STAT(halt_wakeup), NULL }, -+ { "hypercalls", VCPU_STAT(hypercalls), NULL }, -+ { "request_irq", VCPU_STAT(request_irq_exits), NULL }, -+ { "request_nmi", VCPU_STAT(request_nmi_exits), NULL }, -+ { "irq_exits", VCPU_STAT(irq_exits), NULL }, -+ { "host_state_reload", VCPU_STAT(host_state_reload), NULL }, -+ { "efer_reload", VCPU_STAT(efer_reload), NULL }, -+ { "fpu_reload", VCPU_STAT(fpu_reload), NULL }, -+ { "insn_emulation", VCPU_STAT(insn_emulation), NULL }, -+ { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail), NULL }, -+ { "irq_injections", VCPU_STAT(irq_injections), NULL }, -+ { "nmi_injections", VCPU_STAT(nmi_injections), NULL }, -+ { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped), NULL }, -+ { "mmu_pte_write", VM_STAT(mmu_pte_write), NULL }, -+ { "mmu_pte_updated", VM_STAT(mmu_pte_updated), NULL }, -+ { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped), NULL }, -+ { "mmu_flooded", VM_STAT(mmu_flooded), NULL }, -+ { "mmu_recycled", VM_STAT(mmu_recycled), NULL }, -+ { "mmu_cache_miss", VM_STAT(mmu_cache_miss), NULL }, -+ { "mmu_unsync", VM_STAT(mmu_unsync), NULL }, -+ { "mmu_unsync_global", VM_STAT(mmu_unsync_global), NULL }, -+ { "remote_tlb_flush", VM_STAT(remote_tlb_flush), NULL }, -+ { "largepages", VM_STAT(lpages), NULL }, - { NULL } - }; - -@@ -1417,7 +1417,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru - static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, - struct kvm_interrupt *irq) - { -- if (irq->irq < 0 || irq->irq >= 256) -+ if (irq->irq >= 256) - return -EINVAL; - if (irqchip_in_kernel(vcpu->kvm)) - return -ENXIO; -@@ -2731,10 +2731,10 @@ static struct notifier_block kvmclock_cp - .notifier_call = kvmclock_cpufreq_notifier - }; - --int kvm_arch_init(void *opaque) -+int kvm_arch_init(const void *opaque) - { - int r, cpu; -- struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque; -+ const struct kvm_x86_ops *ops = (const struct kvm_x86_ops *)opaque; - - if (kvm_x86_ops) { - printk(KERN_ERR "kvm: already loaded the other module\n"); -diff -urNp linux-2.6.30.4/arch/x86/lguest/Kconfig linux-2.6.30.4/arch/x86/lguest/Kconfig ---- linux-2.6.30.4/arch/x86/lguest/Kconfig 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lguest/Kconfig 2009-08-02 09:47:36.165378342 -0400 -@@ -3,6 +3,7 @@ config LGUEST_GUEST - select PARAVIRT - depends on X86_32 - depends on !X86_PAE -+ depends on !PAX_KERNEXEC - select VIRTIO - select VIRTIO_RING - select VIRTIO_CONSOLE -diff -urNp linux-2.6.30.4/arch/x86/lib/checksum_32.S linux-2.6.30.4/arch/x86/lib/checksum_32.S ---- linux-2.6.30.4/arch/x86/lib/checksum_32.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/checksum_32.S 2009-07-30 09:48:09.967600435 -0400 -@@ -28,7 +28,8 @@ - #include - #include - #include -- -+#include -+ - /* - * computes a partial checksum, e.g. for TCP/UDP fragments - */ -@@ -304,9 +305,22 @@ unsigned int csum_partial_copy_generic ( - - #define ARGBASE 16 - #define FP 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 -+ jmp csum_partial_copy_generic -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ -+ENTRY(csum_partial_copy_generic) - subl $4,%esp - CFI_ADJUST_CFA_OFFSET 4 - pushl %edi -@@ -331,7 +345,7 @@ ENTRY(csum_partial_copy_generic) - jmp 4f - SRC(1: movw (%esi), %bx ) - addl $2, %esi --DST( movw %bx, (%edi) ) -+DST( movw %bx, %es:(%edi) ) - addl $2, %edi - addw %bx, %ax - adcl $0, %eax -@@ -343,30 +357,30 @@ DST( movw %bx, (%edi) ) - SRC(1: movl (%esi), %ebx ) - SRC( movl 4(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - adcl %edx, %eax --DST( movl %edx, 4(%edi) ) -+DST( movl %edx, %es:4(%edi) ) - - SRC( movl 8(%esi), %ebx ) - SRC( movl 12(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 8(%edi) ) -+DST( movl %ebx, %es:8(%edi) ) - adcl %edx, %eax --DST( movl %edx, 12(%edi) ) -+DST( movl %edx, %es:12(%edi) ) - - SRC( movl 16(%esi), %ebx ) - SRC( movl 20(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 16(%edi) ) -+DST( movl %ebx, %es:16(%edi) ) - adcl %edx, %eax --DST( movl %edx, 20(%edi) ) -+DST( movl %edx, %es:20(%edi) ) - - SRC( movl 24(%esi), %ebx ) - SRC( movl 28(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 24(%edi) ) -+DST( movl %ebx, %es:24(%edi) ) - adcl %edx, %eax --DST( movl %edx, 28(%edi) ) -+DST( movl %edx, %es:28(%edi) ) - - lea 32(%esi), %esi - lea 32(%edi), %edi -@@ -380,7 +394,7 @@ DST( movl %edx, 28(%edi) ) - shrl $2, %edx # This clears CF - SRC(3: movl (%esi), %ebx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - lea 4(%esi), %esi - lea 4(%edi), %edi - dec %edx -@@ -392,12 +406,12 @@ DST( movl %ebx, (%edi) ) - jb 5f - SRC( movw (%esi), %cx ) - leal 2(%esi), %esi --DST( movw %cx, (%edi) ) -+DST( movw %cx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%ecx - SRC(5: movb (%esi), %cl ) --DST( movb %cl, (%edi) ) -+DST( movb %cl, %es:(%edi) ) - 6: addl %ecx, %eax - adcl $0, %eax - 7: -@@ -408,7 +422,7 @@ DST( movb %cl, (%edi) ) - - 6001: - movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - - # zero the complete destination - computing the rest - # is too much work -@@ -421,11 +435,19 @@ DST( movb %cl, (%edi) ) - - 6002: - movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT,(%ebx) -+ movl $-EFAULT,%ss:(%ebx) - jmp 5000b - - .previous - -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 - CFI_RESTORE ebx -@@ -439,26 +461,41 @@ DST( movb %cl, (%edi) ) - CFI_ADJUST_CFA_OFFSET -4 - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #else - - /* Version for PentiumII/PPro */ - - #define ROUND1(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - addl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ROUND(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - adcl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ARGBASE 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 -+ jmp csum_partial_copy_generic -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ -+ENTRY(csum_partial_copy_generic) - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 - CFI_REL_OFFSET ebx, 0 -@@ -482,7 +519,7 @@ ENTRY(csum_partial_copy_generic) - subl %ebx, %edi - lea -1(%esi),%edx - andl $-32,%edx -- lea 3f(%ebx,%ebx), %ebx -+ lea 3f(%ebx,%ebx,2), %ebx - testl %esi, %esi - jmp *%ebx - 1: addl $64,%esi -@@ -503,19 +540,19 @@ ENTRY(csum_partial_copy_generic) - jb 5f - SRC( movw (%esi), %dx ) - leal 2(%esi), %esi --DST( movw %dx, (%edi) ) -+DST( movw %dx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%edx - 5: - SRC( movb (%esi), %dl ) --DST( movb %dl, (%edi) ) -+DST( movb %dl, %es:(%edi) ) - 6: addl %edx, %eax - adcl $0, %eax - 7: - .section .fixup, "ax" - 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - # zero the complete destination (computing the rest is too much work) - movl ARGBASE+8(%esp),%edi # dst - movl ARGBASE+12(%esp),%ecx # len -@@ -523,10 +560,18 @@ DST( movb %dl, (%edi) ) - rep; stosb - jmp 7b - 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - jmp 7b - .previous - -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 - popl %esi - CFI_ADJUST_CFA_OFFSET -4 - CFI_RESTORE esi -@@ -538,7 +583,7 @@ DST( movb %dl, (%edi) ) - CFI_RESTORE ebx - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #undef ROUND - #undef ROUND1 -diff -urNp linux-2.6.30.4/arch/x86/lib/clear_page_64.S linux-2.6.30.4/arch/x86/lib/clear_page_64.S ---- linux-2.6.30.4/arch/x86/lib/clear_page_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/clear_page_64.S 2009-07-30 09:48:09.967600435 -0400 -@@ -44,7 +44,7 @@ ENDPROC(clear_page) - - #include - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp */ - .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.30.4/arch/x86/lib/copy_page_64.S linux-2.6.30.4/arch/x86/lib/copy_page_64.S ---- linux-2.6.30.4/arch/x86/lib/copy_page_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/copy_page_64.S 2009-07-30 09:48:09.967600435 -0400 -@@ -104,7 +104,7 @@ ENDPROC(copy_page) - - #include - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp */ - .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.30.4/arch/x86/lib/copy_user_64.S linux-2.6.30.4/arch/x86/lib/copy_user_64.S ---- linux-2.6.30.4/arch/x86/lib/copy_user_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/copy_user_64.S 2009-07-30 09:48:09.967600435 -0400 -@@ -21,7 +21,7 @@ - .byte 0xe9 /* 32bit jump */ - .long \orig-1f /* by default jump to orig */ - 1: -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 2: .byte 0xe9 /* near jump with 32bit immediate */ - .long \alt-1b /* offset */ /* or alternatively to alt */ - .previous -@@ -64,31 +64,6 @@ - #endif - .endm - --/* Standard copy_to_user with segment limit checking */ --ENTRY(copy_to_user) -- CFI_STARTPROC -- GET_THREAD_INFO(%rax) -- movq %rdi,%rcx -- addq %rdx,%rcx -- jc bad_to_user -- cmpq TI_addr_limit(%rax),%rcx -- jae bad_to_user -- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string -- CFI_ENDPROC -- --/* Standard copy_from_user with segment limit checking */ --ENTRY(copy_from_user) -- CFI_STARTPROC -- GET_THREAD_INFO(%rax) -- movq %rsi,%rcx -- addq %rdx,%rcx -- jc bad_from_user -- cmpq TI_addr_limit(%rax),%rcx -- jae bad_from_user -- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string -- CFI_ENDPROC --ENDPROC(copy_from_user) -- - ENTRY(copy_user_generic) - CFI_STARTPROC - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string -@@ -106,6 +81,8 @@ ENDPROC(__copy_from_user_inatomic) - ENTRY(bad_from_user) - bad_from_user: - CFI_STARTPROC -+ testl %edx,%edx -+ js bad_to_user - movl %edx,%ecx - xorl %eax,%eax - rep -diff -urNp linux-2.6.30.4/arch/x86/lib/getuser.S linux-2.6.30.4/arch/x86/lib/getuser.S ---- linux-2.6.30.4/arch/x86/lib/getuser.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/getuser.S 2009-07-30 09:48:09.967600435 -0400 -@@ -33,6 +33,7 @@ - #include - #include - #include -+#include - - .text - ENTRY(__get_user_1) -@@ -40,7 +41,19 @@ ENTRY(__get_user_1) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 1: movzb (%_ASM_AX),%edx -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %eax,%eax - ret - CFI_ENDPROC -@@ -53,7 +66,19 @@ ENTRY(__get_user_2) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 2: movzwl -1(%_ASM_AX),%edx -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %eax,%eax - ret - CFI_ENDPROC -@@ -66,7 +91,19 @@ ENTRY(__get_user_4) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 3: mov -3(%_ASM_AX),%edx -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %eax,%eax - ret - CFI_ENDPROC -@@ -89,6 +126,12 @@ ENDPROC(__get_user_8) - - bad_get_user: - CFI_STARTPROC -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %edx,%edx - mov $(-EFAULT),%_ASM_AX - ret -diff -urNp linux-2.6.30.4/arch/x86/lib/memcpy_64.S linux-2.6.30.4/arch/x86/lib/memcpy_64.S ---- linux-2.6.30.4/arch/x86/lib/memcpy_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/memcpy_64.S 2009-07-30 09:48:09.968548540 -0400 -@@ -128,7 +128,7 @@ ENDPROC(__memcpy) - * It is also a lot simpler. Use this when possible: - */ - -- .section .altinstr_replacement, "ax" -+ .section .altinstr_replacement, "a" - 1: .byte 0xeb /* jmp */ - .byte (memcpy_c - memcpy) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.30.4/arch/x86/lib/memset_64.S linux-2.6.30.4/arch/x86/lib/memset_64.S ---- linux-2.6.30.4/arch/x86/lib/memset_64.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/memset_64.S 2009-07-30 09:48:09.968548540 -0400 -@@ -118,7 +118,7 @@ ENDPROC(__memset) - - #include - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp */ - .byte (memset_c - memset) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.30.4/arch/x86/lib/mmx_32.c linux-2.6.30.4/arch/x86/lib/mmx_32.c ---- linux-2.6.30.4/arch/x86/lib/mmx_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/mmx_32.c 2009-07-30 09:48:09.968548540 -0400 -@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void * - { - void *p; - int i; -+ unsigned long cr0; - - if (unlikely(in_interrupt())) - return __memcpy(to, from, len); -@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void * - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" /* This set is 28 bytes */ -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" /* This set is 28 bytes */ -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from)); -+ : "=&r" (cr0) : "r" (from) : "ax"); - - for ( ; i > 5; i--) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -158,6 +187,7 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - -@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, voi - * but that is for later. -AV - */ - __asm__ __volatile__( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < (4096-320)/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movntq %%mm0, (%1)\n" -- " movq 8(%0), %%mm1\n" -- " movntq %%mm1, 8(%1)\n" -- " movq 16(%0), %%mm2\n" -- " movntq %%mm2, 16(%1)\n" -- " movq 24(%0), %%mm3\n" -- " movntq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm4\n" -- " movntq %%mm4, 32(%1)\n" -- " movq 40(%0), %%mm5\n" -- " movntq %%mm5, 40(%1)\n" -- " movq 48(%0), %%mm6\n" -- " movntq %%mm6, 48(%1)\n" -- " movq 56(%0), %%mm7\n" -- " movntq %%mm7, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movntq %%mm0, (%2)\n" -+ " movq 8(%1), %%mm1\n" -+ " movntq %%mm1, 8(%2)\n" -+ " movq 16(%1), %%mm2\n" -+ " movntq %%mm2, 16(%2)\n" -+ " movq 24(%1), %%mm3\n" -+ " movntq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm4\n" -+ " movntq %%mm4, 32(%2)\n" -+ " movq 40(%1), %%mm5\n" -+ " movntq %%mm5, 40(%2)\n" -+ " movq 48(%1), %%mm6\n" -+ " movntq %%mm6, 48(%2)\n" -+ " movq 56(%1), %%mm7\n" -+ " movntq %%mm7, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory"); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -280,47 +338,76 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < 4096/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -diff -urNp linux-2.6.30.4/arch/x86/lib/putuser.S linux-2.6.30.4/arch/x86/lib/putuser.S ---- linux-2.6.30.4/arch/x86/lib/putuser.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/putuser.S 2009-07-30 09:48:09.969494268 -0400 -@@ -15,6 +15,7 @@ - #include - #include - #include -+#include - - - /* -@@ -39,7 +40,19 @@ ENTRY(__put_user_1) - ENTER - cmp TI_addr_limit(%_ASM_BX),%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 1: movb %al,(%_ASM_CX) -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_1) -@@ -50,7 +63,19 @@ ENTRY(__put_user_2) - sub $1,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 2: movw %ax,(%_ASM_CX) -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_2) -@@ -61,7 +86,19 @@ ENTRY(__put_user_4) - sub $3,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 3: movl %eax,(%_ASM_CX) -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_4) -@@ -72,16 +109,34 @@ ENTRY(__put_user_8) - sub $7,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 4: mov %_ASM_AX,(%_ASM_CX) - #ifdef CONFIG_X86_32 - 5: movl %edx,4(%_ASM_CX) - #endif -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_8) - - bad_put_user: - CFI_STARTPROC -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - movl $-EFAULT,%eax - EXIT - END(bad_put_user) -diff -urNp linux-2.6.30.4/arch/x86/lib/usercopy_32.c linux-2.6.30.4/arch/x86/lib/usercopy_32.c ---- linux-2.6.30.4/arch/x86/lib/usercopy_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/lib/usercopy_32.c 2009-07-30 09:48:09.969494268 -0400 -@@ -36,31 +36,38 @@ static inline int __movsl_is_ok(unsigned - * Copy a null terminated string from userspace. - */ - --#define __do_strncpy_from_user(dst, src, count, res) \ --do { \ -- int __d0, __d1, __d2; \ -- might_fault(); \ -- __asm__ __volatile__( \ -- " testl %1,%1\n" \ -- " jz 2f\n" \ -- "0: lodsb\n" \ -- " stosb\n" \ -- " testb %%al,%%al\n" \ -- " jz 1f\n" \ -- " decl %1\n" \ -- " jnz 0b\n" \ -- "1: subl %1,%0\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "3: movl %5,%0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- _ASM_EXTABLE(0b,3b) \ -- : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \ -- "=&D" (__d2) \ -- : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \ -- : "memory"); \ --} while (0) -+static long __do_strncpy_from_user(char *dst, const char __user *src, long count) -+{ -+ int __d0, __d1, __d2; -+ long res = -EFAULT; -+ -+ might_fault(); -+ __asm__ __volatile__( -+ " movw %w10,%%ds\n" -+ " testl %1,%1\n" -+ " jz 2f\n" -+ "0: lodsb\n" -+ " stosb\n" -+ " testb %%al,%%al\n" -+ " jz 1f\n" -+ " decl %1\n" -+ " jnz 0b\n" -+ "1: subl %1,%0\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "3: movl %5,%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ _ASM_EXTABLE(0b,3b) -+ : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), -+ "=&D" (__d2) -+ : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst), -+ "r"(__USER_DS) -+ : "memory"); -+ return res; -+} - - /** - * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking. -@@ -85,9 +92,7 @@ do { \ - long - __strncpy_from_user(char *dst, const char __user *src, long count) - { -- long res; -- __do_strncpy_from_user(dst, src, count, res); -- return res; -+ return __do_strncpy_from_user(dst, src, count); - } - EXPORT_SYMBOL(__strncpy_from_user); - -@@ -114,7 +119,7 @@ strncpy_from_user(char *dst, const char - { - long res = -EFAULT; - if (access_ok(VERIFY_READ, src, 1)) -- __do_strncpy_from_user(dst, src, count, res); -+ res = __do_strncpy_from_user(dst, src, count); - return res; - } - EXPORT_SYMBOL(strncpy_from_user); -@@ -123,24 +128,30 @@ EXPORT_SYMBOL(strncpy_from_user); - * Zero Userspace - */ - --#define __do_clear_user(addr,size) \ --do { \ -- int __d0; \ -- might_fault(); \ -- __asm__ __volatile__( \ -- "0: rep; stosl\n" \ -- " movl %2,%0\n" \ -- "1: rep; stosb\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "3: lea 0(%2,%0,4),%0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- _ASM_EXTABLE(0b,3b) \ -- _ASM_EXTABLE(1b,2b) \ -- : "=&c"(size), "=&D" (__d0) \ -- : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \ --} while (0) -+static unsigned long __do_clear_user(void __user *addr, unsigned long size) -+{ -+ int __d0; -+ -+ might_fault(); -+ __asm__ __volatile__( -+ " movw %w6,%%es\n" -+ "0: rep; stosl\n" -+ " movl %2,%0\n" -+ "1: rep; stosb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" -+ ".section .fixup,\"ax\"\n" -+ "3: lea 0(%2,%0,4),%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ _ASM_EXTABLE(0b,3b) -+ _ASM_EXTABLE(1b,2b) -+ : "=&c"(size), "=&D" (__d0) -+ : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0), -+ "r"(__USER_DS)); -+ return size; -+} - - /** - * clear_user: - Zero a block of memory in user space. -@@ -157,7 +168,7 @@ clear_user(void __user *to, unsigned lon - { - might_fault(); - if (access_ok(VERIFY_WRITE, to, n)) -- __do_clear_user(to, n); -+ n = __do_clear_user(to, n); - return n; - } - EXPORT_SYMBOL(clear_user); -@@ -176,8 +187,7 @@ EXPORT_SYMBOL(clear_user); - unsigned long - __clear_user(void __user *to, unsigned long n) - { -- __do_clear_user(to, n); -- return n; -+ return __do_clear_user(to, n); - } - EXPORT_SYMBOL(__clear_user); - -@@ -200,14 +210,17 @@ long strnlen_user(const char __user *s, - might_fault(); - - __asm__ __volatile__( -+ " movw %w8,%%es\n" - " testl %0, %0\n" - " jz 3f\n" -- " andl %0,%%ecx\n" -+ " movl %0,%%ecx\n" - "0: repne; scasb\n" - " setne %%al\n" - " subl %%ecx,%0\n" - " addl %0,%%eax\n" - "1:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" - ".section .fixup,\"ax\"\n" - "2: xorl %%eax,%%eax\n" - " jmp 1b\n" -@@ -219,7 +232,7 @@ long strnlen_user(const char __user *s, - " .long 0b,2b\n" - ".previous" - :"=&r" (n), "=&D" (s), "=&a" (res), "=&c" (tmp) -- :"0" (n), "1" (s), "2" (0), "3" (mask) -+ :"0" (n), "1" (s), "2" (0), "3" (mask), "r" (__USER_DS) - :"cc"); - return res & mask; - } -@@ -227,10 +240,121 @@ EXPORT_SYMBOL(strnlen_user); - - #ifdef CONFIG_X86_INTEL_USERCOPY - static unsigned long --__copy_user_intel(void __user *to, const void *from, unsigned long size) -+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size) -+{ -+ int d0, d1; -+ __asm__ __volatile__( -+ " movw %w6, %%es\n" -+ " .align 2,0x90\n" -+ "1: movl 32(%4), %%eax\n" -+ " cmpl $67, %0\n" -+ " jbe 3f\n" -+ "2: movl 64(%4), %%eax\n" -+ " .align 2,0x90\n" -+ "3: movl 0(%4), %%eax\n" -+ "4: movl 4(%4), %%edx\n" -+ "5: movl %%eax, %%es:0(%3)\n" -+ "6: movl %%edx, %%es:4(%3)\n" -+ "7: movl 8(%4), %%eax\n" -+ "8: movl 12(%4),%%edx\n" -+ "9: movl %%eax, %%es:8(%3)\n" -+ "10: movl %%edx, %%es:12(%3)\n" -+ "11: movl 16(%4), %%eax\n" -+ "12: movl 20(%4), %%edx\n" -+ "13: movl %%eax, %%es:16(%3)\n" -+ "14: movl %%edx, %%es:20(%3)\n" -+ "15: movl 24(%4), %%eax\n" -+ "16: movl 28(%4), %%edx\n" -+ "17: movl %%eax, %%es:24(%3)\n" -+ "18: movl %%edx, %%es:28(%3)\n" -+ "19: movl 32(%4), %%eax\n" -+ "20: movl 36(%4), %%edx\n" -+ "21: movl %%eax, %%es:32(%3)\n" -+ "22: movl %%edx, %%es:36(%3)\n" -+ "23: movl 40(%4), %%eax\n" -+ "24: movl 44(%4), %%edx\n" -+ "25: movl %%eax, %%es:40(%3)\n" -+ "26: movl %%edx, %%es:44(%3)\n" -+ "27: movl 48(%4), %%eax\n" -+ "28: movl 52(%4), %%edx\n" -+ "29: movl %%eax, %%es:48(%3)\n" -+ "30: movl %%edx, %%es:52(%3)\n" -+ "31: movl 56(%4), %%eax\n" -+ "32: movl 60(%4), %%edx\n" -+ "33: movl %%eax, %%es:56(%3)\n" -+ "34: movl %%edx, %%es:60(%3)\n" -+ " addl $-64, %0\n" -+ " addl $64, %4\n" -+ " addl $64, %3\n" -+ " cmpl $63, %0\n" -+ " ja 1b\n" -+ "35: movl %0, %%eax\n" -+ " shrl $2, %0\n" -+ " andl $3, %%eax\n" -+ " cld\n" -+ "99: rep; movsl\n" -+ "36: movl %%eax, %0\n" -+ "37: rep; movsb\n" -+ "100:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" -+ ".section .fixup,\"ax\"\n" -+ "101: lea 0(%%eax,%0,4),%0\n" -+ " jmp 100b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 1b,100b\n" -+ " .long 2b,100b\n" -+ " .long 3b,100b\n" -+ " .long 4b,100b\n" -+ " .long 5b,100b\n" -+ " .long 6b,100b\n" -+ " .long 7b,100b\n" -+ " .long 8b,100b\n" -+ " .long 9b,100b\n" -+ " .long 10b,100b\n" -+ " .long 11b,100b\n" -+ " .long 12b,100b\n" -+ " .long 13b,100b\n" -+ " .long 14b,100b\n" -+ " .long 15b,100b\n" -+ " .long 16b,100b\n" -+ " .long 17b,100b\n" -+ " .long 18b,100b\n" -+ " .long 19b,100b\n" -+ " .long 20b,100b\n" -+ " .long 21b,100b\n" -+ " .long 22b,100b\n" -+ " .long 23b,100b\n" -+ " .long 24b,100b\n" -+ " .long 25b,100b\n" -+ " .long 26b,100b\n" -+ " .long 27b,100b\n" -+ " .long 28b,100b\n" -+ " .long 29b,100b\n" -+ " .long 30b,100b\n" -+ " .long 31b,100b\n" -+ " .long 32b,100b\n" -+ " .long 33b,100b\n" -+ " .long 34b,100b\n" -+ " .long 35b,100b\n" -+ " .long 36b,100b\n" -+ " .long 37b,100b\n" -+ " .long 99b,101b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (d0), "=&S" (d1) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) -+ : "eax", "edx", "memory"); -+ return size; -+} -+ -+static unsigned long -+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size) - { - int d0, d1; - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "1: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -239,36 +363,36 @@ __copy_user_intel(void __user *to, const - " .align 2,0x90\n" - "3: movl 0(%4), %%eax\n" - "4: movl 4(%4), %%edx\n" -- "5: movl %%eax, 0(%3)\n" -- "6: movl %%edx, 4(%3)\n" -+ "5: movl %%eax, %%es:0(%3)\n" -+ "6: movl %%edx, %%es:4(%3)\n" - "7: movl 8(%4), %%eax\n" - "8: movl 12(%4),%%edx\n" -- "9: movl %%eax, 8(%3)\n" -- "10: movl %%edx, 12(%3)\n" -+ "9: movl %%eax, %%es:8(%3)\n" -+ "10: movl %%edx, %%es:12(%3)\n" - "11: movl 16(%4), %%eax\n" - "12: movl 20(%4), %%edx\n" -- "13: movl %%eax, 16(%3)\n" -- "14: movl %%edx, 20(%3)\n" -+ "13: movl %%eax, %%es:16(%3)\n" -+ "14: movl %%edx, %%es:20(%3)\n" - "15: movl 24(%4), %%eax\n" - "16: movl 28(%4), %%edx\n" -- "17: movl %%eax, 24(%3)\n" -- "18: movl %%edx, 28(%3)\n" -+ "17: movl %%eax, %%es:24(%3)\n" -+ "18: movl %%edx, %%es:28(%3)\n" - "19: movl 32(%4), %%eax\n" - "20: movl 36(%4), %%edx\n" -- "21: movl %%eax, 32(%3)\n" -- "22: movl %%edx, 36(%3)\n" -+ "21: movl %%eax, %%es:32(%3)\n" -+ "22: movl %%edx, %%es:36(%3)\n" - "23: movl 40(%4), %%eax\n" - "24: movl 44(%4), %%edx\n" -- "25: movl %%eax, 40(%3)\n" -- "26: movl %%edx, 44(%3)\n" -+ "25: movl %%eax, %%es:40(%3)\n" -+ "26: movl %%edx, %%es:44(%3)\n" - "27: movl 48(%4), %%eax\n" - "28: movl 52(%4), %%edx\n" -- "29: movl %%eax, 48(%3)\n" -- "30: movl %%edx, 52(%3)\n" -+ "29: movl %%eax, %%es:48(%3)\n" -+ "30: movl %%edx, %%es:52(%3)\n" - "31: movl 56(%4), %%eax\n" - "32: movl 60(%4), %%edx\n" -- "33: movl %%eax, 56(%3)\n" -- "34: movl %%edx, 60(%3)\n" -+ "33: movl %%eax, %%es:56(%3)\n" -+ "34: movl %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -282,6 +406,8 @@ __copy_user_intel(void __user *to, const - "36: movl %%eax, %0\n" - "37: rep; movsb\n" - "100:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "101: lea 0(%%eax,%0,4),%0\n" - " jmp 100b\n" -@@ -328,7 +454,7 @@ __copy_user_intel(void __user *to, const - " .long 99b,101b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -338,6 +464,7 @@ __copy_user_zeroing_intel(void *to, cons - { - int d0, d1; - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "0: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -346,36 +473,36 @@ __copy_user_zeroing_intel(void *to, cons - " .align 2,0x90\n" - "2: movl 0(%4), %%eax\n" - "21: movl 4(%4), %%edx\n" -- " movl %%eax, 0(%3)\n" -- " movl %%edx, 4(%3)\n" -+ " movl %%eax, %%es:0(%3)\n" -+ " movl %%edx, %%es:4(%3)\n" - "3: movl 8(%4), %%eax\n" - "31: movl 12(%4),%%edx\n" -- " movl %%eax, 8(%3)\n" -- " movl %%edx, 12(%3)\n" -+ " movl %%eax, %%es:8(%3)\n" -+ " movl %%edx, %%es:12(%3)\n" - "4: movl 16(%4), %%eax\n" - "41: movl 20(%4), %%edx\n" -- " movl %%eax, 16(%3)\n" -- " movl %%edx, 20(%3)\n" -+ " movl %%eax, %%es:16(%3)\n" -+ " movl %%edx, %%es:20(%3)\n" - "10: movl 24(%4), %%eax\n" - "51: movl 28(%4), %%edx\n" -- " movl %%eax, 24(%3)\n" -- " movl %%edx, 28(%3)\n" -+ " movl %%eax, %%es:24(%3)\n" -+ " movl %%edx, %%es:28(%3)\n" - "11: movl 32(%4), %%eax\n" - "61: movl 36(%4), %%edx\n" -- " movl %%eax, 32(%3)\n" -- " movl %%edx, 36(%3)\n" -+ " movl %%eax, %%es:32(%3)\n" -+ " movl %%edx, %%es:36(%3)\n" - "12: movl 40(%4), %%eax\n" - "71: movl 44(%4), %%edx\n" -- " movl %%eax, 40(%3)\n" -- " movl %%edx, 44(%3)\n" -+ " movl %%eax, %%es:40(%3)\n" -+ " movl %%edx, %%es:44(%3)\n" - "13: movl 48(%4), %%eax\n" - "81: movl 52(%4), %%edx\n" -- " movl %%eax, 48(%3)\n" -- " movl %%edx, 52(%3)\n" -+ " movl %%eax, %%es:48(%3)\n" -+ " movl %%edx, %%es:52(%3)\n" - "14: movl 56(%4), %%eax\n" - "91: movl 60(%4), %%edx\n" -- " movl %%eax, 56(%3)\n" -- " movl %%edx, 60(%3)\n" -+ " movl %%eax, %%es:56(%3)\n" -+ " movl %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -389,6 +516,8 @@ __copy_user_zeroing_intel(void *to, cons - " movl %%eax,%0\n" - "7: rep; movsb\n" - "8:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" - "16: pushl %0\n" -@@ -423,7 +552,7 @@ __copy_user_zeroing_intel(void *to, cons - " .long 7b,16b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -439,6 +568,7 @@ static unsigned long __copy_user_zeroing - int d0, d1; - - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "0: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -447,36 +577,36 @@ static unsigned long __copy_user_zeroing - " .align 2,0x90\n" - "2: movl 0(%4), %%eax\n" - "21: movl 4(%4), %%edx\n" -- " movnti %%eax, 0(%3)\n" -- " movnti %%edx, 4(%3)\n" -+ " movnti %%eax, %%es:0(%3)\n" -+ " movnti %%edx, %%es:4(%3)\n" - "3: movl 8(%4), %%eax\n" - "31: movl 12(%4),%%edx\n" -- " movnti %%eax, 8(%3)\n" -- " movnti %%edx, 12(%3)\n" -+ " movnti %%eax, %%es:8(%3)\n" -+ " movnti %%edx, %%es:12(%3)\n" - "4: movl 16(%4), %%eax\n" - "41: movl 20(%4), %%edx\n" -- " movnti %%eax, 16(%3)\n" -- " movnti %%edx, 20(%3)\n" -+ " movnti %%eax, %%es:16(%3)\n" -+ " movnti %%edx, %%es:20(%3)\n" - "10: movl 24(%4), %%eax\n" - "51: movl 28(%4), %%edx\n" -- " movnti %%eax, 24(%3)\n" -- " movnti %%edx, 28(%3)\n" -+ " movnti %%eax, %%es:24(%3)\n" -+ " movnti %%edx, %%es:28(%3)\n" - "11: movl 32(%4), %%eax\n" - "61: movl 36(%4), %%edx\n" -- " movnti %%eax, 32(%3)\n" -- " movnti %%edx, 36(%3)\n" -+ " movnti %%eax, %%es:32(%3)\n" -+ " movnti %%edx, %%es:36(%3)\n" - "12: movl 40(%4), %%eax\n" - "71: movl 44(%4), %%edx\n" -- " movnti %%eax, 40(%3)\n" -- " movnti %%edx, 44(%3)\n" -+ " movnti %%eax, %%es:40(%3)\n" -+ " movnti %%edx, %%es:44(%3)\n" - "13: movl 48(%4), %%eax\n" - "81: movl 52(%4), %%edx\n" -- " movnti %%eax, 48(%3)\n" -- " movnti %%edx, 52(%3)\n" -+ " movnti %%eax, %%es:48(%3)\n" -+ " movnti %%edx, %%es:52(%3)\n" - "14: movl 56(%4), %%eax\n" - "91: movl 60(%4), %%edx\n" -- " movnti %%eax, 56(%3)\n" -- " movnti %%edx, 60(%3)\n" -+ " movnti %%eax, %%es:56(%3)\n" -+ " movnti %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -491,6 +621,8 @@ static unsigned long __copy_user_zeroing - " movl %%eax,%0\n" - "7: rep; movsb\n" - "8:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" - "16: pushl %0\n" -@@ -525,7 +657,7 @@ static unsigned long __copy_user_zeroing - " .long 7b,16b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -536,6 +668,7 @@ static unsigned long __copy_user_intel_n - int d0, d1; - - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "0: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -544,36 +677,36 @@ static unsigned long __copy_user_intel_n - " .align 2,0x90\n" - "2: movl 0(%4), %%eax\n" - "21: movl 4(%4), %%edx\n" -- " movnti %%eax, 0(%3)\n" -- " movnti %%edx, 4(%3)\n" -+ " movnti %%eax, %%es:0(%3)\n" -+ " movnti %%edx, %%es:4(%3)\n" - "3: movl 8(%4), %%eax\n" - "31: movl 12(%4),%%edx\n" -- " movnti %%eax, 8(%3)\n" -- " movnti %%edx, 12(%3)\n" -+ " movnti %%eax, %%es:8(%3)\n" -+ " movnti %%edx, %%es:12(%3)\n" - "4: movl 16(%4), %%eax\n" - "41: movl 20(%4), %%edx\n" -- " movnti %%eax, 16(%3)\n" -- " movnti %%edx, 20(%3)\n" -+ " movnti %%eax, %%es:16(%3)\n" -+ " movnti %%edx, %%es:20(%3)\n" - "10: movl 24(%4), %%eax\n" - "51: movl 28(%4), %%edx\n" -- " movnti %%eax, 24(%3)\n" -- " movnti %%edx, 28(%3)\n" -+ " movnti %%eax, %%es:24(%3)\n" -+ " movnti %%edx, %%es:28(%3)\n" - "11: movl 32(%4), %%eax\n" - "61: movl 36(%4), %%edx\n" -- " movnti %%eax, 32(%3)\n" -- " movnti %%edx, 36(%3)\n" -+ " movnti %%eax, %%es:32(%3)\n" -+ " movnti %%edx, %%es:36(%3)\n" - "12: movl 40(%4), %%eax\n" - "71: movl 44(%4), %%edx\n" -- " movnti %%eax, 40(%3)\n" -- " movnti %%edx, 44(%3)\n" -+ " movnti %%eax, %%es:40(%3)\n" -+ " movnti %%edx, %%es:44(%3)\n" - "13: movl 48(%4), %%eax\n" - "81: movl 52(%4), %%edx\n" -- " movnti %%eax, 48(%3)\n" -- " movnti %%edx, 52(%3)\n" -+ " movnti %%eax, %%es:48(%3)\n" -+ " movnti %%edx, %%es:52(%3)\n" - "14: movl 56(%4), %%eax\n" - "91: movl 60(%4), %%edx\n" -- " movnti %%eax, 56(%3)\n" -- " movnti %%edx, 60(%3)\n" -+ " movnti %%eax, %%es:56(%3)\n" -+ " movnti %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -588,6 +721,8 @@ static unsigned long __copy_user_intel_n - " movl %%eax,%0\n" - "7: rep; movsb\n" - "8:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" - "16: jmp 8b\n" -@@ -616,7 +751,7 @@ static unsigned long __copy_user_intel_n - " .long 7b,16b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -629,90 +764,146 @@ static unsigned long __copy_user_intel_n - */ - unsigned long __copy_user_zeroing_intel(void *to, const void __user *from, - unsigned long size); --unsigned long __copy_user_intel(void __user *to, const void *from, -+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from, -+ unsigned long size); -+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from, - unsigned long size); - unsigned long __copy_user_zeroing_intel_nocache(void *to, - const void __user *from, unsigned long size); - #endif /* CONFIG_X86_INTEL_USERCOPY */ - - /* Generic arbitrary sized copy. */ --#define __copy_user(to, from, size) \ --do { \ -- int __d0, __d1, __d2; \ -- __asm__ __volatile__( \ -- " cmp $7,%0\n" \ -- " jbe 1f\n" \ -- " movl %1,%0\n" \ -- " negl %0\n" \ -- " andl $7,%0\n" \ -- " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -- " movl %3,%0\n" \ -- " shrl $2,%0\n" \ -- " andl $3,%3\n" \ -- " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -- " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "5: addl %3,%0\n" \ -- " jmp 2b\n" \ -- "3: lea 0(%3,%0,4),%0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- ".section __ex_table,\"a\"\n" \ -- " .align 4\n" \ -- " .long 4b,5b\n" \ -- " .long 0b,3b\n" \ -- " .long 1b,2b\n" \ -- ".previous" \ -- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \ -- : "3"(size), "0"(size), "1"(to), "2"(from) \ -- : "memory"); \ --} while (0) -- --#define __copy_user_zeroing(to, from, size) \ --do { \ -- int __d0, __d1, __d2; \ -- __asm__ __volatile__( \ -- " cmp $7,%0\n" \ -- " jbe 1f\n" \ -- " movl %1,%0\n" \ -- " negl %0\n" \ -- " andl $7,%0\n" \ -- " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -- " movl %3,%0\n" \ -- " shrl $2,%0\n" \ -- " andl $3,%3\n" \ -- " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -- " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "5: addl %3,%0\n" \ -- " jmp 6f\n" \ -- "3: lea 0(%3,%0,4),%0\n" \ -- "6: pushl %0\n" \ -- " pushl %%eax\n" \ -- " xorl %%eax,%%eax\n" \ -- " rep; stosb\n" \ -- " popl %%eax\n" \ -- " popl %0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- ".section __ex_table,\"a\"\n" \ -- " .align 4\n" \ -- " .long 4b,5b\n" \ -- " .long 0b,3b\n" \ -- " .long 1b,6b\n" \ -- ".previous" \ -- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \ -- : "3"(size), "0"(size), "1"(to), "2"(from) \ -- : "memory"); \ --} while (0) -+static unsigned long -+__generic_copy_to_user(void __user *to, const void *from, unsigned long size) -+{ -+ int __d0, __d1, __d2; -+ -+ __asm__ __volatile__( -+ " movw %w8,%%es\n" -+ " cmp $7,%0\n" -+ " jbe 1f\n" -+ " movl %1,%0\n" -+ " negl %0\n" -+ " andl $7,%0\n" -+ " subl %0,%3\n" -+ "4: rep; movsb\n" -+ " movl %3,%0\n" -+ " shrl $2,%0\n" -+ " andl $3,%3\n" -+ " .align 2,0x90\n" -+ "0: rep; movsl\n" -+ " movl %3,%0\n" -+ "1: rep; movsb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" -+ ".section .fixup,\"ax\"\n" -+ "5: addl %3,%0\n" -+ " jmp 2b\n" -+ "3: lea 0(%3,%0,4),%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 4b,5b\n" -+ " .long 0b,3b\n" -+ " .long 1b,2b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) -+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS) -+ : "memory"); -+ return size; -+} -+ -+static unsigned long -+__generic_copy_from_user(void *to, const void __user *from, unsigned long size) -+{ -+ int __d0, __d1, __d2; -+ -+ __asm__ __volatile__( -+ " movw %w8,%%ds\n" -+ " cmp $7,%0\n" -+ " jbe 1f\n" -+ " movl %1,%0\n" -+ " negl %0\n" -+ " andl $7,%0\n" -+ " subl %0,%3\n" -+ "4: rep; movsb\n" -+ " movl %3,%0\n" -+ " shrl $2,%0\n" -+ " andl $3,%3\n" -+ " .align 2,0x90\n" -+ "0: rep; movsl\n" -+ " movl %3,%0\n" -+ "1: rep; movsb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "5: addl %3,%0\n" -+ " jmp 2b\n" -+ "3: lea 0(%3,%0,4),%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 4b,5b\n" -+ " .long 0b,3b\n" -+ " .long 1b,2b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) -+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS) -+ : "memory"); -+ return size; -+} -+ -+static unsigned long -+__copy_user_zeroing(void *to, const void __user *from, unsigned long size) -+{ -+ int __d0, __d1, __d2; -+ -+ __asm__ __volatile__( -+ " movw %w8,%%ds\n" -+ " cmp $7,%0\n" -+ " jbe 1f\n" -+ " movl %1,%0\n" -+ " negl %0\n" -+ " andl $7,%0\n" -+ " subl %0,%3\n" -+ "4: rep; movsb\n" -+ " movl %3,%0\n" -+ " shrl $2,%0\n" -+ " andl $3,%3\n" -+ " .align 2,0x90\n" -+ "0: rep; movsl\n" -+ " movl %3,%0\n" -+ "1: rep; movsb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "5: addl %3,%0\n" -+ " jmp 6f\n" -+ "3: lea 0(%3,%0,4),%0\n" -+ "6: pushl %0\n" -+ " pushl %%eax\n" -+ " xorl %%eax,%%eax\n" -+ " rep; stosb\n" -+ " popl %%eax\n" -+ " popl %0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 4b,5b\n" -+ " .long 0b,3b\n" -+ " .long 1b,6b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) -+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS) -+ : "memory"); -+ return size; -+} - - unsigned long __copy_to_user_ll(void __user *to, const void *from, - unsigned long n) -@@ -775,9 +966,9 @@ survive: - } - #endif - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ n = __generic_copy_to_user(to, from, n); - else -- n = __copy_user_intel(to, from, n); -+ n = __generic_copy_to_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_to_user_ll); -@@ -786,7 +977,7 @@ unsigned long __copy_from_user_ll(void * - unsigned long n) - { - if (movsl_is_ok(to, from, n)) -- __copy_user_zeroing(to, from, n); -+ n = __copy_user_zeroing(to, from, n); - else - n = __copy_user_zeroing_intel(to, from, n); - return n; -@@ -797,10 +988,9 @@ unsigned long __copy_from_user_ll_nozero - unsigned long n) - { - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ n = __generic_copy_from_user(to, from, n); - else -- n = __copy_user_intel((void __user *)to, -- (const void *)from, n); -+ n = __generic_copy_from_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nozero); -@@ -812,9 +1002,9 @@ unsigned long __copy_from_user_ll_nocach - if (n > 64 && cpu_has_xmm2) - n = __copy_user_zeroing_intel_nocache(to, from, n); - else -- __copy_user_zeroing(to, from, n); -+ n = __copy_user_zeroing(to, from, n); - #else -- __copy_user_zeroing(to, from, n); -+ n = __copy_user_zeroing(to, from, n); - #endif - return n; - } -@@ -827,59 +1017,37 @@ unsigned long __copy_from_user_ll_nocach - if (n > 64 && cpu_has_xmm2) - n = __copy_user_intel_nocache(to, from, n); - else -- __copy_user(to, from, n); -+ n = __generic_copy_from_user(to, from, n); - #else -- __copy_user(to, from, n); -+ n = __generic_copy_from_user(to, from, n); - #endif - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero); - --/** -- * copy_to_user: - Copy a block of data into user space. -- * @to: Destination address, in user space. -- * @from: Source address, in kernel space. -- * @n: Number of bytes to copy. -- * -- * Context: User context only. This function may sleep. -- * -- * Copy data from kernel space to user space. -- * -- * Returns number of bytes that could not be copied. -- * On success, this will be zero. -- */ --unsigned long --copy_to_user(void __user *to, const void *from, unsigned long n) -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+void __set_fs(mm_segment_t x, int cpu) - { -- if (access_ok(VERIFY_WRITE, to, n)) -- n = __copy_to_user(to, from, n); -- return n; -+ unsigned long limit = x.seg; -+ struct desc_struct d; -+ -+ current_thread_info()->addr_limit = x; -+ if (likely(limit)) -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ pack_descriptor(&d, 0UL, limit, 0xF3, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_DS, &d, DESCTYPE_S); - } --EXPORT_SYMBOL(copy_to_user); - --/** -- * copy_from_user: - Copy a block of data from user space. -- * @to: Destination address, in kernel space. -- * @from: Source address, in user space. -- * @n: Number of bytes to copy. -- * -- * Context: User context only. This function may sleep. -- * -- * Copy data from user space to kernel space. -- * -- * Returns number of bytes that could not be copied. -- * On success, this will be zero. -- * -- * If some data could not be copied, this function will pad the copied -- * data to the requested size using zero bytes. -- */ --unsigned long --copy_from_user(void *to, const void __user *from, unsigned long n) -+void set_fs(mm_segment_t x) - { -- if (access_ok(VERIFY_READ, from, n)) -- n = __copy_from_user(to, from, n); -- else -- memset(to, 0, n); -- return n; -+ __set_fs(x, get_cpu()); -+ put_cpu_no_resched(); - } --EXPORT_SYMBOL(copy_from_user); -+#else -+void set_fs(mm_segment_t x) -+{ -+ current_thread_info()->addr_limit = x; -+} -+#endif -+ -+EXPORT_SYMBOL(set_fs); -diff -urNp linux-2.6.30.4/arch/x86/Makefile linux-2.6.30.4/arch/x86/Makefile ---- linux-2.6.30.4/arch/x86/Makefile 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/Makefile 2009-07-30 09:48:09.917626356 -0400 -@@ -198,3 +198,12 @@ define archhelp - echo ' FDARGS="..." arguments for the booted kernel' - echo ' FDINITRD=file initrd for the booted kernel' - endef -+ -+define OLD_LD -+ -+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils. -+*** Please upgrade your binutils to 2.18 or newer -+endef -+ -+archprepare: -+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD))) -diff -urNp linux-2.6.30.4/arch/x86/mm/extable.c linux-2.6.30.4/arch/x86/mm/extable.c ---- linux-2.6.30.4/arch/x86/mm/extable.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/extable.c 2009-07-30 09:48:09.970452952 -0400 -@@ -1,14 +1,62 @@ - #include - #include -+#include - #include - -+/* -+ * The exception table needs to be sorted so that the binary -+ * search that we use to find entries in it works properly. -+ * This is used both for the kernel exception table and for -+ * the exception tables of modules that get loaded. -+ */ -+static int cmp_ex(const void *a, const void *b) -+{ -+ const struct exception_table_entry *x = a, *y = b; -+ -+ /* avoid overflow */ -+ if (x->insn > y->insn) -+ return 1; -+ if (x->insn < y->insn) -+ return -1; -+ return 0; -+} -+ -+static void swap_ex(void *a, void *b, int size) -+{ -+ struct exception_table_entry t, *x = a, *y = b; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ -+ t = *x; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ *x = *y; -+ *y = t; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+} -+ -+void sort_extable(struct exception_table_entry *start, -+ struct exception_table_entry *finish) -+{ -+ sort(start, finish - start, sizeof(struct exception_table_entry), -+ cmp_ex, swap_ex); -+} - - int fixup_exception(struct pt_regs *regs) - { - const struct exception_table_entry *fixup; - - #ifdef CONFIG_PNPBIOS -- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) { -+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) { - extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; - extern u32 pnp_bios_is_utter_crap; - pnp_bios_is_utter_crap = 1; -diff -urNp linux-2.6.30.4/arch/x86/mm/fault.c linux-2.6.30.4/arch/x86/mm/fault.c ---- linux-2.6.30.4/arch/x86/mm/fault.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/fault.c 2009-08-05 19:15:53.629625442 -0400 -@@ -27,6 +27,8 @@ - #include - #include - #include -+#include -+#include - - #include - -@@ -37,6 +39,7 @@ - #include - #include - #include -+#include - - /* - * Page fault error code bits: -@@ -73,7 +76,7 @@ static inline int notify_page_fault(stru - int ret = 0; - - /* kprobe_running() needs smp_processor_id() */ -- if (kprobes_built_in() && !user_mode_vm(regs)) { -+ if (kprobes_built_in() && !user_mode(regs)) { - preempt_disable(); - if (kprobe_running() && kprobe_fault_handler(regs, 14)) - ret = 1; -@@ -193,6 +196,30 @@ force_sig_info_fault(int si_signo, int s - force_sig_info(si_signo, &info, tsk); - } - -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault(struct pt_regs *regs); -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address) -+{ -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+ pgd = pgd_offset(mm, address); -+ if (!pgd_present(*pgd)) -+ return NULL; -+ pud = pud_offset(pgd, address); -+ if (!pud_present(*pud)) -+ return NULL; -+ pmd = pmd_offset(pud, address); -+ if (!pmd_present(*pmd)) -+ return NULL; -+ return pmd; -+} -+#endif -+ - DEFINE_SPINLOCK(pgd_lock); - LIST_HEAD(pgd_list); - -@@ -571,7 +598,7 @@ static int is_errata93(struct pt_regs *r - static int is_errata100(struct pt_regs *regs, unsigned long address) - { - #ifdef CONFIG_X86_64 -- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32)) -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32)) - return 1; - #endif - return 0; -@@ -598,7 +625,7 @@ static int is_f00f_bug(struct pt_regs *r - } - - static const char nx_warning[] = KERN_CRIT --"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n"; -+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n"; - - static void - show_fault_oops(struct pt_regs *regs, unsigned long error_code, -@@ -607,15 +634,31 @@ show_fault_oops(struct pt_regs *regs, un - if (!oops_may_print()) - return; - -- if (error_code & PF_INSTR) { -+ if (nx_enabled && (error_code & PF_INSTR)) { - unsigned int level; - - pte_t *pte = lookup_address(address, &level); - - if (pte && pte_present(*pte) && !pte_exec(*pte)) -- printk(nx_warning, current_uid()); -+ printk(nx_warning, current_uid(), current->comm, task_pid_nr(current)); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_MODULES -+ if (init_mm.start_code <= address && address < (unsigned long)MODULES_END) -+#else -+ if (init_mm.start_code <= address && address < init_mm.end_code) -+#endif -+ { -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ else -+ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ } -+#endif -+ - printk(KERN_ALERT "BUG: unable to handle kernel "); - if (address < PAGE_SIZE) - printk(KERN_CONT "NULL pointer dereference"); -@@ -740,6 +783,68 @@ __bad_area_nosemaphore(struct pt_regs *r - unsigned long address, int si_code) - { - struct task_struct *tsk = current; -+ struct mm_struct *mm = tsk->mm; -+ -+#ifdef CONFIG_X86_64 -+ if (mm && (error_code & PF_INSTR)) { -+ if (regs->ip == (unsigned long)vgettimeofday) { -+ regs->ip = (unsigned long)VDSO64_SYMBOL(mm->context.vdso, fallback_gettimeofday); -+ return; -+ } else if (regs->ip == (unsigned long)vtime) { -+ regs->ip = (unsigned long)VDSO64_SYMBOL(mm->context.vdso, fallback_time); -+ return; -+ } else if (regs->ip == (unsigned long)vgetcpu) { -+ regs->ip = (unsigned long)VDSO64_SYMBOL(mm->context.vdso, getcpu); -+ return; -+ } -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm && (error_code & PF_USER)) { -+ unsigned long ip = regs->ip; -+ -+ if (v8086_mode(regs)) -+ ip = ((regs->cs & 0xffff) << 4) + (regs->ip & 0xffff); -+ -+ /* -+ * It's possible to have interrupts off here: -+ */ -+ local_irq_enable(); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && -+ ((nx_enabled && (error_code & PF_INSTR)) || (!(error_code & (PF_PROT | PF_WRITE)) && regs->ip == address))) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && !(error_code & (PF_PROT | PF_WRITE)) && (regs->ip + SEGMEXEC_TASK_SIZE == address)) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+ } -+#endif - - /* User mode accesses just cause a SIGSEGV */ - if (error_code & PF_USER) { -@@ -874,6 +979,106 @@ static int spurious_fault_check(unsigned - return 1; - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code) -+{ -+ pte_t *pte; -+ pmd_t *pmd; -+ spinlock_t *ptl; -+ unsigned char pte_mask; -+ -+ if (nx_enabled || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) || -+ !(mm->pax_flags & MF_PAX_PAGEEXEC)) -+ return 0; -+ -+ /* PaX: it's our fault, let's handle it if we can */ -+ -+ /* PaX: take a look at read faults before acquiring any locks */ -+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) { -+ /* instruction fetch attempt from a protected page in user mode */ -+ up_read(&mm->mmap_sem); -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return 1; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ -+ pmd = pax_get_pmd(mm, address); -+ if (unlikely(!pmd)) -+ return 0; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) { -+ pte_unmap_unlock(pte, ptl); -+ return 0; -+ } -+ -+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) { -+ /* write attempt to a protected page in user mode */ -+ pte_unmap_unlock(pte, ptl); -+ return 0; -+ } -+ -+#ifdef CONFIG_SMP -+ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask))) -+#else -+ if (likely(address > get_limit(regs->cs))) -+#endif -+ { -+ set_pte(pte, pte_mkread(*pte)); -+ __flush_tlb_one(address); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return 1; -+ } -+ -+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1)); -+ -+ /* -+ * PaX: fill DTLB with user rights and retry -+ */ -+ __asm__ __volatile__ ( -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ "movw %w4,%%es\n" -+#endif -+ "orb %2,(%1)\n" -+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC) -+/* -+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's -+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any* -+ * page fault when examined during a TLB load attempt. this is true not only -+ * for PTEs holding a non-present entry but also present entries that will -+ * raise a page fault (such as those set up by PaX, or the copy-on-write -+ * mechanism). in effect it means that we do *not* need to flush the TLBs -+ * for our target pages since their PTEs are simply not in the TLBs at all. -+ -+ * the best thing in omitting it is that we gain around 15-20% speed in the -+ * fast path of the page fault handler and can get rid of tracing since we -+ * can no longer flush unintended entries. -+ */ -+ "invlpg (%0)\n" -+#endif -+ "testb $0,%%es:(%0)\n" -+ "xorb %3,(%1)\n" -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ "pushl %%ss\n" -+ "popl %%es\n" -+#endif -+ : -+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER), "r" (__USER_DS) -+ : "memory", "cc"); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return 1; -+} -+#endif -+ - /* - * Handle a spurious fault caused by a stale TLB entry. - * -@@ -940,6 +1145,9 @@ int show_unhandled_signals = 1; - static inline int - access_error(unsigned long error_code, int write, struct vm_area_struct *vma) - { -+ if (nx_enabled && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC)) -+ return 1; -+ - if (write) { - /* write, present and write, not present: */ - if (unlikely(!(vma->vm_flags & VM_WRITE))) -@@ -973,19 +1181,18 @@ do_page_fault(struct pt_regs *regs, unsi - { - struct vm_area_struct *vma; - struct task_struct *tsk; -- unsigned long address; - struct mm_struct *mm; - int write; - int fault; - -+ /* Get the faulting address: */ -+ const unsigned long address = read_cr2(); -+ - tsk = current; - mm = tsk->mm; - - prefetchw(&mm->mmap_sem); - -- /* Get the faulting address: */ -- address = read_cr2(); -- - if (unlikely(kmmio_fault(regs, address))) - return; - -@@ -1033,7 +1240,7 @@ do_page_fault(struct pt_regs *regs, unsi - * User-mode registers count as a user access even for any - * potential system fault or CPU buglet: - */ -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - local_irq_enable(); - error_code |= PF_USER; - } else { -@@ -1085,6 +1292,11 @@ do_page_fault(struct pt_regs *regs, unsi - might_sleep(); - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (pax_handle_pageexec_fault(regs, mm, address, error_code)) -+ return; -+#endif -+ - vma = find_vma(mm, address); - if (unlikely(!vma)) { - bad_area(regs, error_code, address); -@@ -1096,18 +1308,24 @@ do_page_fault(struct pt_regs *regs, unsi - bad_area(regs, error_code, address); - return; - } -- if (error_code & PF_USER) { -- /* -- * Accessing the stack below %sp is always a bug. -- * The large cushion allows instructions like enter -- * and pusha to work. ("enter $65535, $31" pushes -- * 32 pointers and then decrements %sp by 65535.) -- */ -- if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) { -- bad_area(regs, error_code, address); -- return; -- } -+ /* -+ * Accessing the stack below %sp is always a bug. -+ * The large cushion allows instructions like enter -+ * and pusha to work. ("enter $65535, $31" pushes -+ * 32 pointers and then decrements %sp by 65535.) -+ */ -+ if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) { -+ bad_area(regs, error_code, address); -+ return; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) { -+ bad_area(regs, error_code, address); -+ return; -+ } -+#endif -+ - if (unlikely(expand_stack(vma, address))) { - bad_area(regs, error_code, address); - return; -@@ -1146,3 +1364,174 @@ good_area: - - up_read(&mm->mmap_sem); - } -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault_32(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned char mov1, mov2; -+ unsigned short jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 11) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov1, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) { -+ regs->cx = addr1; -+ regs->ax = addr2; -+ regs->ip = addr2; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned char mov, jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 9) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ -+ if (err) -+ break; -+ -+ if (mov == 0xB9 && jmp == 0xE9) { -+ regs->cx = addr1; -+ regs->ip = (unsigned int)(regs->ip + addr2 + 10); -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+ -+#ifdef CONFIG_X86_64 -+static int pax_handle_fetch_fault_64(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned int addr1; -+ unsigned long addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned long addr1, addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->ip = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when gcc trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ if (v8086_mode(regs)) -+ return 1; -+ -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+ -+#ifdef CONFIG_X86_32 -+ return pax_handle_fetch_fault_32(regs); -+#else -+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) -+ return pax_handle_fetch_fault_32(regs); -+ else -+ return pax_handle_fetch_fault_64(regs); -+#endif -+} -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+void pax_report_insns(void *pc, void *sp) -+{ -+ long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char __user *)pc+i)) -+ printk(KERN_CONT "?? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+ -+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long)); -+ for (i = -1; i < 80 / sizeof(long); i++) { -+ unsigned long c; -+ if (get_user(c, (unsigned long __user *)sp+i)) -+#ifdef CONFIG_X86_32 -+ printk(KERN_CONT "???????? "); -+#else -+ printk(KERN_CONT "???????????????? "); -+#endif -+ else -+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c); -+ } -+ printk("\n"); -+} -+#endif -diff -urNp linux-2.6.30.4/arch/x86/mm/highmem_32.c linux-2.6.30.4/arch/x86/mm/highmem_32.c ---- linux-2.6.30.4/arch/x86/mm/highmem_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/highmem_32.c 2009-07-30 09:48:09.970452952 -0400 -@@ -32,6 +32,10 @@ void *kmap_atomic_prot(struct page *page - enum fixed_addresses idx; - unsigned long vaddr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */ - pagefault_disable(); - -@@ -43,7 +47,17 @@ void *kmap_atomic_prot(struct page *page - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - BUG_ON(!pte_none(*(kmap_pte-idx))); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_pte(kmap_pte-idx, mk_pte(page, prot)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - arch_flush_lazy_mmu_mode(); - - return (void *)vaddr; -@@ -59,15 +73,29 @@ void kunmap_atomic(void *kvaddr, enum km - unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; - enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id(); - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* - * Force other mappings to Oops if they'll try to access this pte - * without first remap it. Keeping stale mappings around is a bad idea - * also, in case the page changes cacheability attributes or becomes - * a protected page in a hypervisor. - */ -- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) -+ if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - kpte_clear_flush(kmap_pte-idx, vaddr); -- else { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ } else { - #ifdef CONFIG_DEBUG_HIGHMEM - BUG_ON(vaddr < PAGE_OFFSET); - BUG_ON(vaddr >= (unsigned long)high_memory); -diff -urNp linux-2.6.30.4/arch/x86/mm/hugetlbpage.c linux-2.6.30.4/arch/x86/mm/hugetlbpage.c ---- linux-2.6.30.4/arch/x86/mm/hugetlbpage.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/hugetlbpage.c 2009-07-30 09:48:09.971412512 -0400 -@@ -267,13 +267,18 @@ static unsigned long hugetlb_get_unmappe - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -- unsigned long start_addr; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif - - if (len > mm->cached_hole_size) { -- start_addr = mm->free_area_cache; -+ start_addr = mm->free_area_cache; - } else { -- start_addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -281,13 +286,13 @@ full_search: - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ -- if (TASK_SIZE - len < addr) { -+ if (pax_task_size - len < addr) { - /* - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -@@ -310,9 +315,8 @@ static unsigned long hugetlb_get_unmappe - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma, *prev_vma; -- unsigned long base = mm->mmap_base, addr = addr0; -+ unsigned long base = mm->mmap_base, addr; - unsigned long largest_hole = mm->cached_hole_size; -- int first_time = 1; - - /* don't allow allocations above current base */ - if (mm->free_area_cache > base) -@@ -322,7 +326,7 @@ static unsigned long hugetlb_get_unmappe - largest_hole = 0; - mm->free_area_cache = base; - } --try_again: -+ - /* make sure it can fit in the remaining address space */ - if (mm->free_area_cache < len) - goto fail; -@@ -364,22 +368,26 @@ try_again: - - fail: - /* -- * if hint left us with no space for the requested -- * mapping then try again: -- */ -- if (first_time) { -- mm->free_area_cache = base; -- largest_hole = 0; -- first_time = 0; -- goto try_again; -- } -- /* - * A failed mmap() very likely causes application failure, - * so fall back to the bottom-up function here. This scenario - * can happen with large stack limits and large mmap() - * allocations. - */ -- mm->free_area_cache = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; - addr = hugetlb_get_unmapped_area_bottomup(file, addr0, - len, pgoff, flags); -@@ -387,6 +395,7 @@ fail: - /* - * Restore the topdown base: - */ -+ mm->mmap_base = base; - mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - -@@ -400,10 +409,17 @@ hugetlb_get_unmapped_area(struct file *f - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -+ unsigned long pax_task_size = TASK_SIZE; - - if (len & ~huge_page_mask(h)) - return -EINVAL; -- if (len > TASK_SIZE) -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size) - return -ENOMEM; - - if (flags & MAP_FIXED) { -@@ -415,7 +431,7 @@ hugetlb_get_unmapped_area(struct file *f - if (addr) { - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -+ if (pax_task_size - len >= addr && - (!vma || addr + len <= vma->vm_start)) - return addr; - } -diff -urNp linux-2.6.30.4/arch/x86/mm/init_32.c linux-2.6.30.4/arch/x86/mm/init_32.c ---- linux-2.6.30.4/arch/x86/mm/init_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/init_32.c 2009-07-30 09:48:09.972413251 -0400 -@@ -50,6 +50,7 @@ - #include - #include - #include -+#include - - unsigned long max_low_pfn_mapped; - unsigned long max_pfn_mapped; -@@ -75,36 +76,6 @@ static __init void *alloc_low_page(void) - } - - /* -- * Creates a middle page table and puts a pointer to it in the -- * given global directory entry. This only returns the gd entry -- * in non-PAE compilation mode, since the middle layer is folded. -- */ --static pmd_t * __init one_md_table_init(pgd_t *pgd) --{ -- pud_t *pud; -- pmd_t *pmd_table; -- --#ifdef CONFIG_X86_PAE -- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { -- if (after_bootmem) -- pmd_table = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE); -- else -- pmd_table = (pmd_t *)alloc_low_page(); -- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT); -- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); -- pud = pud_offset(pgd, 0); -- BUG_ON(pmd_table != pmd_offset(pud, 0)); -- -- return pmd_table; -- } --#endif -- pud = pud_offset(pgd, 0); -- pmd_table = pmd_offset(pud, 0); -- -- return pmd_table; --} -- --/* - * Create a page table and place a pointer to it in a middle page - * directory entry: - */ -@@ -124,13 +95,28 @@ static pte_t * __init one_page_table_ini - page_table = (pte_t *)alloc_low_page(); - - paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT); -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE)); -+#else - set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); -+#endif - BUG_ON(page_table != pte_offset_kernel(pmd, 0)); - } - - return pte_offset_kernel(pmd, 0); - } - -+static pmd_t * __init one_md_table_init(pgd_t *pgd) -+{ -+ pud_t *pud; -+ pmd_t *pmd_table; -+ -+ pud = pud_offset(pgd, 0); -+ pmd_table = pmd_offset(pud, 0); -+ -+ return pmd_table; -+} -+ - pmd_t * __init populate_extra_pmd(unsigned long vaddr) - { - int pgd_idx = pgd_index(vaddr); -@@ -204,6 +190,7 @@ page_table_range_init(unsigned long star - int pgd_idx, pmd_idx; - unsigned long vaddr; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte = NULL; - -@@ -213,8 +200,13 @@ page_table_range_init(unsigned long star - pgd = pgd_base + pgd_idx; - - for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { -- pmd = one_md_table_init(pgd); -- pmd = pmd + pmd_index(vaddr); -+ pud = pud_offset(pgd, vaddr); -+ pmd = pmd_offset(pud, vaddr); -+ -+#ifdef CONFIG_X86_PAE -+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); -+#endif -+ - for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); - pmd++, pmd_idx++) { - pte = page_table_kmap_check(one_page_table_init(pmd), -@@ -226,11 +218,23 @@ page_table_range_init(unsigned long star - } - } - --static inline int is_kernel_text(unsigned long addr) -+static inline int is_kernel_text(unsigned long start, unsigned long end) - { -- if (addr >= PAGE_OFFSET && addr <= (unsigned long)__init_end) -- return 1; -- return 0; -+ unsigned long etext; -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ etext = ktva_ktla((unsigned long)&MODULES_END); -+#else -+ etext = (unsigned long)&_etext; -+#endif -+ -+ if ((start > ktla_ktva(etext) || -+ end <= ktla_ktva((unsigned long)_stext)) && -+ (start > ktla_ktva((unsigned long)_einittext) || -+ end <= ktla_ktva((unsigned long)_sinittext)) && -+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000))) -+ return 0; -+ return 1; - } - - /* -@@ -246,9 +250,10 @@ kernel_physical_mapping_init(unsigned lo - int use_pse = page_size_mask == (1<> PAGE_SHIFT); -+#endif - - if (pfn >= end_pfn) - continue; -@@ -294,14 +304,13 @@ repeat: - #endif - for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn; - pmd++, pmd_idx++) { -- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET; -+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET; - - /* - * Map with big pages if possible, otherwise - * create normal page tables: - */ - if (use_pse) { -- unsigned int addr2; - pgprot_t prot = PAGE_KERNEL_LARGE; - /* - * first pass will use the same initial -@@ -311,11 +320,7 @@ repeat: - __pgprot(PTE_IDENT_ATTR | - _PAGE_PSE); - -- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE + -- PAGE_OFFSET + PAGE_SIZE-1; -- -- if (is_kernel_text(addr) || -- is_kernel_text(addr2)) -+ if (is_kernel_text(address, address + PMD_SIZE)) - prot = PAGE_KERNEL_LARGE_EXEC; - - pages_2m++; -@@ -332,7 +337,7 @@ repeat: - pte_ofs = pte_index((pfn< 0x80000001)) { -- cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]); -- -- if ((v[3] & (1 << 20)) && !disable_nx) { -- rdmsr(MSR_EFER, l, h); -- l |= EFER_NX; -- wrmsr(MSR_EFER, l, h); -- nx_enabled = 1; -- __supported_pte_mask |= _PAGE_NX; -- } -+ __supported_pte_mask &= ~_PAGE_NX; -+ rdmsr(MSR_EFER, l, h); -+ l &= ~EFER_NX; -+ wrmsr(MSR_EFER, l, h); - } - } - #endif -@@ -934,7 +928,7 @@ void __init mem_init(void) - set_highmem_pages_init(); - - codesize = (unsigned long) &_etext - (unsigned long) &_text; -- datasize = (unsigned long) &_edata - (unsigned long) &_etext; -+ datasize = (unsigned long) &_edata - (unsigned long) &_data; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); -@@ -980,10 +974,10 @@ void __init mem_init(void) - ((unsigned long)&__init_end - - (unsigned long)&__init_begin) >> 10, - -- (unsigned long)&_etext, (unsigned long)&_edata, -- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10, -+ (unsigned long)&_data, (unsigned long)&_edata, -+ ((unsigned long)&_edata - (unsigned long)&_data) >> 10, - -- (unsigned long)&_text, (unsigned long)&_etext, -+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext), - ((unsigned long)&_etext - (unsigned long)&_text) >> 10); - - /* -diff -urNp linux-2.6.30.4/arch/x86/mm/init_64.c linux-2.6.30.4/arch/x86/mm/init_64.c ---- linux-2.6.30.4/arch/x86/mm/init_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/init_64.c 2009-07-30 09:48:09.972413251 -0400 -@@ -202,12 +202,24 @@ void set_pte_vaddr_pud(pud_t *pud_page, - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pud = pud_page + pud_index(vaddr); - pmd = fill_pmd(pud, vaddr); - pte = fill_pte(pmd, vaddr); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_pte(pte, new_pte); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * It's enough to flush this one mapping. - * (PGE mappings get flushed as well) -@@ -265,14 +277,12 @@ static void __init __init_extra_mapping( - pgd = pgd_offset_k((unsigned long)__va(phys)); - if (pgd_none(*pgd)) { - pud = (pud_t *) spp_getpage(); -- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE)); - } - pud = pud_offset(pgd, (unsigned long)__va(phys)); - if (pud_none(*pud)) { - pmd = (pmd_t *) spp_getpage(); -- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE)); - } - pmd = pmd_offset(pud, phys); - BUG_ON(!pmd_none(*pmd)); -@@ -882,8 +892,8 @@ int kern_addr_valid(unsigned long addr) - static struct vm_area_struct gate_vma = { - .vm_start = VSYSCALL_START, - .vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE), -- .vm_page_prot = PAGE_READONLY_EXEC, -- .vm_flags = VM_READ | VM_EXEC -+ .vm_page_prot = PAGE_READONLY, -+ .vm_flags = VM_READ - }; - - struct vm_area_struct *get_gate_vma(struct task_struct *tsk) -@@ -917,7 +927,7 @@ int in_gate_area_no_task(unsigned long a - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; - if (vma == &gate_vma) - return "[vsyscall]"; -diff -urNp linux-2.6.30.4/arch/x86/mm/init.c linux-2.6.30.4/arch/x86/mm/init.c ---- linux-2.6.30.4/arch/x86/mm/init.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/init.c 2009-07-30 09:48:09.971412512 -0400 -@@ -348,7 +348,13 @@ unsigned long __init_refok init_memory_m - */ - int devmem_is_allowed(unsigned long pagenr) - { -- if (pagenr <= 256) -+ if (!pagenr) -+ return 1; -+#ifdef CONFIG_VM86 -+ if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT)) -+ return 1; -+#endif -+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 1; - if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) - return 0; -@@ -396,6 +402,75 @@ void free_init_pages(char *what, unsigne - - void free_initmem(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+#ifdef CONFIG_X86_32 -+ /* PaX: limit KERNEL_CS to actual size */ -+ unsigned long addr, limit; -+ struct desc_struct d; -+ int cpu; -+ -+#ifdef CONFIG_MODULES -+ limit = ktva_ktla((unsigned long)&MODULES_END); -+#else -+ limit = (unsigned long)&_etext; -+#endif -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ -+ for (cpu = 0; cpu < NR_CPUS; cpu++) { -+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S); -+ } -+ -+ /* PaX: make KERNEL_CS read-only */ -+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_data; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ } -+#ifdef CONFIG_X86_PAE -+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+#endif -+#else -+ unsigned long addr, end; -+ -+ /* PaX: make kernel code/rodata read-only, rest non-executable */ -+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if ((unsigned long)_text <= addr && addr < (unsigned long)_data) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ else -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+ -+ addr = (unsigned long)__va(__pa(__START_KERNEL_map)); -+ end = addr + KERNEL_IMAGE_SIZE; -+ for (; addr < end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_data))) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ else -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+#endif -+ -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -diff -urNp linux-2.6.30.4/arch/x86/mm/iomap_32.c linux-2.6.30.4/arch/x86/mm/iomap_32.c ---- linux-2.6.30.4/arch/x86/mm/iomap_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/iomap_32.c 2009-07-30 09:48:09.973477350 -0400 -@@ -37,12 +37,26 @@ void *kmap_atomic_prot_pfn(unsigned long - enum fixed_addresses idx; - unsigned long vaddr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pagefault_disable(); - - debug_kmap_atomic(type); - idx = type + KM_TYPE_NR * smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_pte(kmap_pte - idx, pfn_pte(pfn, prot)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - arch_flush_lazy_mmu_mode(); - - return (void *)vaddr; -diff -urNp linux-2.6.30.4/arch/x86/mm/ioremap.c linux-2.6.30.4/arch/x86/mm/ioremap.c ---- linux-2.6.30.4/arch/x86/mm/ioremap.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/ioremap.c 2009-07-30 19:56:23.514032300 -0400 -@@ -111,8 +111,8 @@ int page_is_ram(unsigned long pagenr) - * Second special case: Some BIOSen report the PC BIOS - * area (640->1Mb) as ram even though it is not. - */ -- if (pagenr >= (BIOS_BEGIN >> PAGE_SHIFT) && -- pagenr < (BIOS_END >> PAGE_SHIFT)) -+ if (pagenr >= (ISA_START_ADDRESS >> PAGE_SHIFT) && -+ pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 0; - - for (i = 0; i < e820.nr_map; i++) { -@@ -207,10 +207,7 @@ static void __iomem *__ioremap_caller(re - /* - * Don't allow anybody to remap normal RAM that we're using.. - */ -- for (pfn = phys_addr >> PAGE_SHIFT; -- (pfn << PAGE_SHIFT) < (last_addr & PAGE_MASK); -- pfn++) { -- -+ for (pfn = phys_addr >> PAGE_SHIFT; ((resource_size_t)pfn << PAGE_SHIFT) < (last_addr & PAGE_MASK); pfn++) { - int is_ram = page_is_ram(pfn); - - if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn))) -@@ -272,6 +269,8 @@ static void __iomem *__ioremap_caller(re - break; - } - -+ prot = canon_pgprot(prot); -+ - /* - * Ok, go for it.. - */ -@@ -489,7 +488,6 @@ static int __init early_ioremap_debug_se - early_param("early_ioremap_debug", early_ioremap_debug_setup); - - static __initdata int after_paging_init; --static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss; - - static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) - { -@@ -502,11 +500,6 @@ static inline pmd_t * __init early_iorem - return pmd; - } - --static inline pte_t * __init early_ioremap_pte(unsigned long addr) --{ -- return &bm_pte[pte_index(addr)]; --} -- - static unsigned long slot_virt[FIX_BTMAPS_SLOTS] __initdata; - - void __init early_ioremap_init(void) -@@ -521,8 +514,6 @@ void __init early_ioremap_init(void) - slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i); - - pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)); -- memset(bm_pte, 0, sizeof(bm_pte)); -- pmd_populate_kernel(&init_mm, pmd, bm_pte); - - /* - * The boot-ioremap range spans multiple pmds, for which -@@ -552,13 +543,15 @@ static void __init __early_set_fixmap(en - phys_addr_t phys, pgprot_t flags) - { - unsigned long addr = __fix_to_virt(idx); -+ unsigned int level; - pte_t *pte; - - if (idx >= __end_of_fixed_addresses) { - BUG(); - return; - } -- pte = early_ioremap_pte(addr); -+ pte = lookup_address(addr, &level); -+ BUG_ON(!pte || level != PG_LEVEL_4K); - - if (pgprot_val(flags)) - set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags)); -diff -urNp linux-2.6.30.4/arch/x86/mm/mmap.c linux-2.6.30.4/arch/x86/mm/mmap.c ---- linux-2.6.30.4/arch/x86/mm/mmap.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/mmap.c 2009-07-30 09:48:09.973477350 -0400 -@@ -36,7 +36,7 @@ - * Leave an at least ~128 MB hole. - */ - #define MIN_GAP (128*1024*1024) --#define MAX_GAP (TASK_SIZE/6*5) -+#define MAX_GAP (pax_task_size/6*5) - - /* - * True on X86_32 or when emulating IA32 on X86_64 -@@ -81,27 +81,40 @@ static unsigned long mmap_rnd(void) - return rnd << PAGE_SHIFT; - } - --static unsigned long mmap_base(void) -+static unsigned long mmap_base(struct mm_struct *mm) - { - unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur; -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif - - if (gap < MIN_GAP) - gap = MIN_GAP; - else if (gap > MAX_GAP) - gap = MAX_GAP; - -- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd()); -+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd()); - } - - /* - * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64 - * does, but not when emulating X86_32 - */ --static unsigned long mmap_legacy_base(void) -+static unsigned long mmap_legacy_base(struct mm_struct *mm) - { -- if (mmap_is_ia32()) -+ if (mmap_is_ia32()) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ return SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ - return TASK_UNMAPPED_BASE; -- else -+ } else - return TASK_UNMAPPED_BASE + mmap_rnd(); - } - -@@ -112,11 +125,23 @@ static unsigned long mmap_legacy_base(vo - void arch_pick_mmap_layout(struct mm_struct *mm) - { - if (mmap_is_legacy()) { -- mm->mmap_base = mmap_legacy_base(); -+ mm->mmap_base = mmap_legacy_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -- mm->mmap_base = mmap_base(); -+ mm->mmap_base = mmap_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-2.6.30.4/arch/x86/mm/numa_32.c linux-2.6.30.4/arch/x86/mm/numa_32.c ---- linux-2.6.30.4/arch/x86/mm/numa_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/numa_32.c 2009-07-30 09:48:09.974436034 -0400 -@@ -98,7 +98,6 @@ unsigned long node_memmap_size_bytes(int - } - #endif - --extern unsigned long find_max_low_pfn(void); - extern unsigned long highend_pfn, highstart_pfn; - - #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE) -diff -urNp linux-2.6.30.4/arch/x86/mm/pageattr.c linux-2.6.30.4/arch/x86/mm/pageattr.c ---- linux-2.6.30.4/arch/x86/mm/pageattr.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/pageattr.c 2009-07-30 09:48:09.974436034 -0400 -@@ -21,6 +21,7 @@ - #include - #include - #include -+#include - - /* - * The current flushing context - we pass it instead of 5 arguments: -@@ -265,9 +266,10 @@ static inline pgprot_t static_protection - * Does not cover __inittext since that is gone later on. On - * 64bit we do not enforce !NX on the low mapping - */ -- if (within(address, (unsigned long)_text, (unsigned long)_etext)) -+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext))) - pgprot_val(forbidden) |= _PAGE_NX; - -+#ifdef CONFIG_DEBUG_RODATA - /* - * The .rodata section needs to be read-only. Using the pfn - * catches all aliases. -@@ -275,6 +277,7 @@ static inline pgprot_t static_protection - if (within(pfn, __pa((unsigned long)__start_rodata) >> PAGE_SHIFT, - __pa((unsigned long)__end_rodata) >> PAGE_SHIFT)) - pgprot_val(forbidden) |= _PAGE_RW; -+#endif - - prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden)); - -@@ -327,8 +330,20 @@ EXPORT_SYMBOL_GPL(lookup_address); - */ - static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - /* change init_mm */ - set_pte_atomic(kpte, pte); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - #ifdef CONFIG_X86_32 - if (!SHARED_KERNEL_PMD) { - struct page *page; -diff -urNp linux-2.6.30.4/arch/x86/mm/pageattr-test.c linux-2.6.30.4/arch/x86/mm/pageattr-test.c ---- linux-2.6.30.4/arch/x86/mm/pageattr-test.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/pageattr-test.c 2009-07-30 09:48:09.974436034 -0400 -@@ -36,7 +36,7 @@ enum { - - static int pte_testbit(pte_t pte) - { -- return pte_flags(pte) & _PAGE_UNUSED1; -+ return pte_flags(pte) & _PAGE_CPA_TEST; - } - - struct split_state { -diff -urNp linux-2.6.30.4/arch/x86/mm/pat.c linux-2.6.30.4/arch/x86/mm/pat.c ---- linux-2.6.30.4/arch/x86/mm/pat.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/pat.c 2009-07-30 09:48:09.975412278 -0400 -@@ -213,7 +213,7 @@ chk_conflict(struct memtype *new, struct - - conflict: - printk(KERN_INFO "%s:%d conflicting memory types " -- "%Lx-%Lx %s<->%s\n", current->comm, current->pid, new->start, -+ "%Lx-%Lx %s<->%s\n", current->comm, task_pid_nr(current), new->start, - new->end, cattr_name(new->type), cattr_name(entry->type)); - return -EBUSY; - } -@@ -487,7 +487,7 @@ int free_memtype(u64 start, u64 end) - - if (err) { - printk(KERN_INFO "%s:%d freeing invalid memtype %Lx-%Lx\n", -- current->comm, current->pid, start, end); -+ current->comm, task_pid_nr(current), start, end); - } - - dprintk("free_memtype request 0x%Lx-0x%Lx\n", start, end); -@@ -588,7 +588,7 @@ int kernel_map_sync_memtype(u64 base, un - printk(KERN_INFO - "%s:%d ioremap_change_attr failed %s " - "for %Lx-%Lx\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(flags), - base, (unsigned long long)(base + size)); - return -EINVAL; -@@ -627,7 +627,7 @@ static int reserve_pfn_range(u64 paddr, - free_memtype(paddr, paddr + size); - printk(KERN_ERR "%s:%d map pfn expected mapping type %s" - " for %Lx-%Lx, got %s\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(want_flags), - (unsigned long long)paddr, - (unsigned long long)(paddr + size), -@@ -826,7 +826,7 @@ static int memtype_seq_show(struct seq_f - return 0; - } - --static struct seq_operations memtype_seq_ops = { -+static const struct seq_operations memtype_seq_ops = { - .start = memtype_seq_start, - .next = memtype_seq_next, - .stop = memtype_seq_stop, -diff -urNp linux-2.6.30.4/arch/x86/mm/pgtable_32.c linux-2.6.30.4/arch/x86/mm/pgtable_32.c ---- linux-2.6.30.4/arch/x86/mm/pgtable_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/pgtable_32.c 2009-07-30 09:48:09.975412278 -0400 -@@ -33,6 +33,10 @@ void set_pte_vaddr(unsigned long vaddr, - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pgd = swapper_pg_dir + pgd_index(vaddr); - if (pgd_none(*pgd)) { - BUG(); -@@ -49,11 +53,20 @@ void set_pte_vaddr(unsigned long vaddr, - return; - } - pte = pte_offset_kernel(pmd, vaddr); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - if (pte_val(pteval)) - set_pte_at(&init_mm, vaddr, pte, pteval); - else - pte_clear(&init_mm, vaddr, pte); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * It's enough to flush this one mapping. - * (PGE mappings get flushed as well) -diff -urNp linux-2.6.30.4/arch/x86/mm/tlb.c linux-2.6.30.4/arch/x86/mm/tlb.c ---- linux-2.6.30.4/arch/x86/mm/tlb.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/mm/tlb.c 2009-07-30 09:48:09.975412278 -0400 -@@ -12,7 +12,7 @@ - #include - - DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) -- = { &init_mm, 0, }; -+ = { &init_mm, 0 }; - - /* - * Smarter SMP flushing macros. -diff -urNp linux-2.6.30.4/arch/x86/oprofile/backtrace.c linux-2.6.30.4/arch/x86/oprofile/backtrace.c ---- linux-2.6.30.4/arch/x86/oprofile/backtrace.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/oprofile/backtrace.c 2009-07-30 09:48:09.975412278 -0400 -@@ -37,7 +37,7 @@ static void backtrace_address(void *data - unsigned int *depth = data; - - if ((*depth)--) -- oprofile_add_trace(addr); -+ oprofile_add_trace(ktla_ktva(addr)); - } - - static struct stacktrace_ops backtrace_ops = { -@@ -77,7 +77,7 @@ x86_backtrace(struct pt_regs * const reg - { - struct frame_head *head = (struct frame_head *)frame_pointer(regs); - -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned long stack = kernel_stack_pointer(regs); - if (depth) - dump_trace(NULL, regs, (unsigned long *)stack, 0, -diff -urNp linux-2.6.30.4/arch/x86/oprofile/op_model_p4.c linux-2.6.30.4/arch/x86/oprofile/op_model_p4.c ---- linux-2.6.30.4/arch/x86/oprofile/op_model_p4.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/oprofile/op_model_p4.c 2009-07-30 09:48:09.976413155 -0400 -@@ -48,7 +48,7 @@ static inline void setup_num_counters(vo - #endif - } - --static int inline addr_increment(void) -+static inline int addr_increment(void) - { - #ifdef CONFIG_SMP - return smp_num_siblings == 2 ? 2 : 1; -diff -urNp linux-2.6.30.4/arch/x86/pci/common.c linux-2.6.30.4/arch/x86/pci/common.c ---- linux-2.6.30.4/arch/x86/pci/common.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/pci/common.c 2009-07-30 09:48:09.976413155 -0400 -@@ -370,7 +370,7 @@ static const struct dmi_system_id __devi - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"), - }, - }, -- {} -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - void __init dmi_check_pciprobe(void) -diff -urNp linux-2.6.30.4/arch/x86/pci/fixup.c linux-2.6.30.4/arch/x86/pci/fixup.c ---- linux-2.6.30.4/arch/x86/pci/fixup.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/pci/fixup.c 2009-07-30 09:48:09.976413155 -0400 -@@ -364,7 +364,7 @@ static const struct dmi_system_id __devi - DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"), - }, - }, -- {} -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - /* -@@ -435,7 +435,7 @@ static const struct dmi_system_id __devi - DMI_MATCH(DMI_PRODUCT_VERSION, "PSA40U"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - static void __devinit pci_pre_fixup_toshiba_ohci1394(struct pci_dev *dev) -diff -urNp linux-2.6.30.4/arch/x86/pci/i386.c linux-2.6.30.4/arch/x86/pci/i386.c ---- linux-2.6.30.4/arch/x86/pci/i386.c 2009-07-30 20:32:40.384629006 -0400 -+++ linux-2.6.30.4/arch/x86/pci/i386.c 2009-07-30 20:32:47.941604516 -0400 -@@ -269,7 +269,7 @@ void pcibios_set_master(struct pci_dev * - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); - } - --static struct vm_operations_struct pci_mmap_ops = { -+static const struct vm_operations_struct pci_mmap_ops = { - .access = generic_access_phys, - }; - -diff -urNp linux-2.6.30.4/arch/x86/pci/irq.c linux-2.6.30.4/arch/x86/pci/irq.c ---- linux-2.6.30.4/arch/x86/pci/irq.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/pci/irq.c 2009-07-30 09:48:09.976413155 -0400 -@@ -543,7 +543,7 @@ static __init int intel_router_probe(str - static struct pci_device_id __initdata pirq_440gx[] = { - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) }, -- { }, -+ { PCI_DEVICE(0, 0) } - }; - - /* 440GX has a proprietary PIRQ router -- don't use it */ -@@ -1145,7 +1145,7 @@ static struct dmi_system_id __initdata p - DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - int __init pcibios_irq_init(void) -diff -urNp linux-2.6.30.4/arch/x86/pci/pcbios.c linux-2.6.30.4/arch/x86/pci/pcbios.c ---- linux-2.6.30.4/arch/x86/pci/pcbios.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/pci/pcbios.c 2009-07-30 09:48:09.976413155 -0400 -@@ -56,50 +56,120 @@ union bios32 { - static struct { - unsigned long address; - unsigned short segment; --} bios32_indirect = { 0, __KERNEL_CS }; -+} bios32_indirect __read_only = { 0, __PCIBIOS_CS }; - - /* - * Returns the entry point for the given service, NULL on error - */ - --static unsigned long bios32_service(unsigned long service) -+static unsigned long __devinit bios32_service(unsigned long service) - { - unsigned char return_code; /* %al */ - unsigned long address; /* %ebx */ - unsigned long length; /* %ecx */ - unsigned long entry; /* %edx */ - unsigned long flags; -+ struct desc_struct d, *gdt; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - local_irq_save(flags); -- __asm__("lcall *(%%edi); cld" -+ -+ gdt = get_cpu_gdt_table(smp_processor_id()); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld" - : "=a" (return_code), - "=b" (address), - "=c" (length), - "=d" (entry) - : "0" (service), - "1" (0), -- "D" (&bios32_indirect)); -+ "D" (&bios32_indirect), -+ "r"(__PCIBIOS_DS) -+ : "memory"); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - local_irq_restore(flags); - - switch (return_code) { -- case 0: -- return address + entry; -- case 0x80: /* Not present */ -- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -- return 0; -- default: /* Shouldn't happen */ -- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -- service, return_code); -+ case 0: { -+ int cpu; -+ unsigned char flags; -+ -+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry); -+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) { -+ printk(KERN_WARNING "bios32_service: not valid\n"); - return 0; -+ } -+ address = address + PAGE_OFFSET; -+ length += 16UL; /* some BIOSs underreport this... */ -+ flags = 4; -+ if (length >= 64*1024*1024) { -+ length >>= PAGE_SHIFT; -+ flags |= 8; -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ for (cpu = 0; cpu < NR_CPUS; cpu++) { -+ gdt = get_cpu_gdt_table(cpu); -+ pack_descriptor(&d, address, length, 0x9b, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, address, length, 0x93, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ return entry; -+ } -+ case 0x80: /* Not present */ -+ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -+ return 0; -+ default: /* Shouldn't happen */ -+ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -+ service, return_code); -+ return 0; - } - } - - static struct { - unsigned long address; - unsigned short segment; --} pci_indirect = { 0, __KERNEL_CS }; -+} pci_indirect __read_only = { 0, __PCIBIOS_CS }; - --static int pci_bios_present; -+static int pci_bios_present __read_only; - - static int __devinit check_pcibios(void) - { -@@ -108,11 +178,13 @@ static int __devinit check_pcibios(void) - unsigned long flags, pcibios_entry; - - if ((pcibios_entry = bios32_service(PCI_SERVICE))) { -- pci_indirect.address = pcibios_entry + PAGE_OFFSET; -+ pci_indirect.address = pcibios_entry; - - local_irq_save(flags); -- __asm__( -- "lcall *(%%edi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%edi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -121,7 +193,8 @@ static int __devinit check_pcibios(void) - "=b" (ebx), - "=c" (ecx) - : "1" (PCIBIOS_PCI_BIOS_PRESENT), -- "D" (&pci_indirect) -+ "D" (&pci_indirect), -+ "r" (__PCIBIOS_DS) - : "memory"); - local_irq_restore(flags); - -@@ -165,7 +238,10 @@ static int pci_bios_read(unsigned int se - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -174,7 +250,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_BYTE), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 8 bits, do not trust the - * BIOS having done it: -@@ -182,7 +259,10 @@ static int pci_bios_read(unsigned int se - *value &= 0xff; - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -191,7 +271,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_WORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 16 bits, do not trust the - * BIOS having done it: -@@ -199,7 +280,10 @@ static int pci_bios_read(unsigned int se - *value &= 0xffff; - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -208,7 +292,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_DWORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -231,7 +316,10 @@ static int pci_bios_write(unsigned int s - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -240,10 +328,14 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -252,10 +344,14 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -264,7 +360,8 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -368,10 +465,13 @@ struct irq_routing_table * pcibios_get_i - - DBG("PCI: Fetching IRQ routing table... "); - __asm__("push %%es\n\t" -+ "movw %w8, %%ds\n\t" - "push %%ds\n\t" - "pop %%es\n\t" -- "lcall *(%%esi); cld\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" - "pop %%es\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -382,7 +482,8 @@ struct irq_routing_table * pcibios_get_i - "1" (0), - "D" ((long) &opt), - "S" (&pci_indirect), -- "m" (opt) -+ "m" (opt), -+ "r" (__PCIBIOS_DS) - : "memory"); - DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map); - if (ret & 0xff00) -@@ -406,7 +507,10 @@ int pcibios_set_irq_routing(struct pci_d - { - int ret; - -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w5, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -414,7 +518,8 @@ int pcibios_set_irq_routing(struct pci_d - : "0" (PCIBIOS_SET_PCI_HW_INT), - "b" ((dev->bus->number << 8) | dev->devfn), - "c" ((irq << 8) | (pin + 10)), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - return !(ret & 0xff00); - } - EXPORT_SYMBOL(pcibios_set_irq_routing); -diff -urNp linux-2.6.30.4/arch/x86/power/cpu_32.c linux-2.6.30.4/arch/x86/power/cpu_32.c ---- linux-2.6.30.4/arch/x86/power/cpu_32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/power/cpu_32.c 2009-07-30 09:48:09.976413155 -0400 -@@ -68,7 +68,7 @@ static void do_fpu_end(void) - static void fix_processor_context(void) - { - int cpu = smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - - set_tss_desc(cpu, t); /* - * This just modifies memory; should not be -diff -urNp linux-2.6.30.4/arch/x86/power/cpu_64.c linux-2.6.30.4/arch/x86/power/cpu_64.c ---- linux-2.6.30.4/arch/x86/power/cpu_64.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/power/cpu_64.c 2009-07-30 09:48:09.978339754 -0400 -@@ -144,7 +144,11 @@ void restore_processor_state(void) - static void fix_processor_context(void) - { - int cpu = smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - /* - * This just modifies memory; should not be necessary. But... This -@@ -153,8 +157,16 @@ static void fix_processor_context(void) - */ - set_tss_desc(cpu, t); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - syscall_init(); /* This sets MSR_*STAR and related */ - load_TR_desc(); /* This does ltr */ - load_LDT(¤t->active_mm->context); /* This does lldt */ -diff -urNp linux-2.6.30.4/arch/x86/vdso/Makefile linux-2.6.30.4/arch/x86/vdso/Makefile ---- linux-2.6.30.4/arch/x86/vdso/Makefile 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/vdso/Makefile 2009-07-30 09:48:09.978339754 -0400 -@@ -122,7 +122,7 @@ quiet_cmd_vdso = VDSO $@ - $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \ - -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) - --VDSO_LDFLAGS = -fPIC -shared $(call ld-option, -Wl$(comma)--hash-style=sysv) -+VDSO_LDFLAGS = -fPIC -shared --no-undefined $(call ld-option, -Wl$(comma)--hash-style=sysv) - - # - # Install the unstripped copy of vdso*.so listed in $(vdso-install-y). -diff -urNp linux-2.6.30.4/arch/x86/vdso/vclock_gettime.c linux-2.6.30.4/arch/x86/vdso/vclock_gettime.c ---- linux-2.6.30.4/arch/x86/vdso/vclock_gettime.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/vdso/vclock_gettime.c 2009-08-05 19:15:53.673598242 -0400 -@@ -22,24 +22,48 @@ - #include - #include - #include -+#include - #include "vextern.h" - - #define gtod vdso_vsyscall_gtod_data - -+notrace noinline long __vdso_fallback_time(long *t) -+{ -+ long secs; -+ asm volatile("syscall" -+ : "=a" (secs) -+ : "0" (__NR_time),"D" (t) : "r11", "cx", "memory"); -+ return secs; -+} -+ - notrace static long vdso_fallback_gettime(long clock, struct timespec *ts) - { - long ret; - asm("syscall" : "=a" (ret) : -- "0" (__NR_clock_gettime),"D" (clock), "S" (ts) : "memory"); -+ "0" (__NR_clock_gettime),"D" (clock), "S" (ts) : "r11", "cx", "memory"); - return ret; - } - -+notrace static inline cycle_t __vdso_vread_hpet(void) -+{ -+ return readl((const void __iomem *)fix_to_virt(VSYSCALL_HPET) + 0xf0); -+} -+ -+notrace static inline cycle_t __vdso_vread_tsc(void) -+{ -+ cycle_t ret = (cycle_t)vget_cycles(); -+ -+ return ret >= gtod->clock.cycle_last ? ret : gtod->clock.cycle_last; -+} -+ - notrace static inline long vgetns(void) - { - long v; -- cycles_t (*vread)(void); -- vread = gtod->clock.vread; -- v = (vread() - gtod->clock.cycle_last) & gtod->clock.mask; -+ if (gtod->clock.name[0] == 't' && gtod->clock.name[1] == 's' && gtod->clock.name[2] == 'c' && !gtod->clock.name[3]) -+ v = __vdso_vread_tsc(); -+ else -+ v = __vdso_vread_hpet(); -+ v = (v - gtod->clock.cycle_last) & gtod->clock.mask; - return (v * gtod->clock.mult) >> gtod->clock.shift; - } - -@@ -88,7 +112,9 @@ notrace static noinline int do_monotonic - - notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts) - { -- if (likely(gtod->sysctl_enabled && gtod->clock.vread)) -+ if (likely(gtod->sysctl_enabled && -+ ((gtod->clock.name[0] == 'h' && gtod->clock.name[1] == 'p' && gtod->clock.name[2] == 'e' && gtod->clock.name[3] == 't' && !gtod->clock.name[4]) || -+ (gtod->clock.name[0] == 't' && gtod->clock.name[1] == 's' && gtod->clock.name[2] == 'c' && !gtod->clock.name[3])))) - switch (clock) { - case CLOCK_REALTIME: - return do_realtime(ts); -@@ -100,10 +126,20 @@ notrace int __vdso_clock_gettime(clockid - int clock_gettime(clockid_t, struct timespec *) - __attribute__((weak, alias("__vdso_clock_gettime"))); - --notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) -+notrace noinline int __vdso_fallback_gettimeofday(struct timeval *tv, struct timezone *tz) - { - long ret; -- if (likely(gtod->sysctl_enabled && gtod->clock.vread)) { -+ asm("syscall" : "=a" (ret) : -+ "0" (__NR_gettimeofday), "D" (tv), "S" (tz) : "r11", "cx", "memory"); -+ return ret; -+} -+ -+notrace int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) -+{ -+ if (likely(gtod->sysctl_enabled && -+ ((gtod->clock.name[0] == 'h' && gtod->clock.name[1] == 'p' && gtod->clock.name[2] == 'e' && gtod->clock.name[3] == 't' && !gtod->clock.name[4]) || -+ (gtod->clock.name[0] == 't' && gtod->clock.name[1] == 's' && gtod->clock.name[2] == 'c' && !gtod->clock.name[3])))) -+ { - if (likely(tv != NULL)) { - BUILD_BUG_ON(offsetof(struct timeval, tv_usec) != - offsetof(struct timespec, tv_nsec) || -@@ -118,9 +154,7 @@ notrace int __vdso_gettimeofday(struct t - } - return 0; - } -- asm("syscall" : "=a" (ret) : -- "0" (__NR_gettimeofday), "D" (tv), "S" (tz) : "memory"); -- return ret; -+ return __vdso_fallback_gettimeofday(tv, tz); - } - int gettimeofday(struct timeval *, struct timezone *) - __attribute__((weak, alias("__vdso_gettimeofday"))); -diff -urNp linux-2.6.30.4/arch/x86/vdso/vdso32-setup.c linux-2.6.30.4/arch/x86/vdso/vdso32-setup.c ---- linux-2.6.30.4/arch/x86/vdso/vdso32-setup.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/vdso/vdso32-setup.c 2009-07-30 09:48:09.979439324 -0400 -@@ -226,7 +226,7 @@ static inline void map_compat_vdso(int m - void enable_sep_cpu(void) - { - int cpu = get_cpu(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - if (!boot_cpu_has(X86_FEATURE_SEP)) { - put_cpu(); -@@ -249,7 +249,7 @@ static int __init gate_vma_init(void) - gate_vma.vm_start = FIXADDR_USER_START; - gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; -- gate_vma.vm_page_prot = __P101; -+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); - /* - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later -@@ -331,7 +331,7 @@ int arch_setup_additional_pages(struct l - if (compat) - addr = VDSO_HIGH_BASE; - else { -- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); -+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; -@@ -358,7 +358,7 @@ int arch_setup_additional_pages(struct l - goto up_fail; - } - -- current->mm->context.vdso = (void *)addr; -+ current->mm->context.vdso = addr; - current_thread_info()->sysenter_return = - VDSO32_SYMBOL(addr, SYSENTER_RETURN); - -@@ -384,7 +384,7 @@ static ctl_table abi_table2[] = { - .mode = 0644, - .proc_handler = proc_dointvec - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static ctl_table abi_root_table2[] = { -@@ -394,7 +394,7 @@ static ctl_table abi_root_table2[] = { - .mode = 0555, - .child = abi_table2 - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static __init int ia32_binfmt_init(void) -@@ -409,8 +409,14 @@ __initcall(ia32_binfmt_init); - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso) -+ return "[vdso]"; -+#endif -+ - return NULL; - } - -@@ -419,7 +425,7 @@ struct vm_area_struct *get_gate_vma(stru - struct mm_struct *mm = tsk->mm; - - /* Check to see if this task was created in compat vdso mode */ -- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) -+ if (mm && mm->context.vdso == VDSO_HIGH_BASE) - return &gate_vma; - return NULL; - } -diff -urNp linux-2.6.30.4/arch/x86/vdso/vdso.lds.S linux-2.6.30.4/arch/x86/vdso/vdso.lds.S ---- linux-2.6.30.4/arch/x86/vdso/vdso.lds.S 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/vdso/vdso.lds.S 2009-07-30 09:48:09.978662746 -0400 -@@ -35,3 +35,9 @@ VDSO64_PRELINK = VDSO_PRELINK; - #define VEXTERN(x) VDSO64_ ## x = vdso_ ## x; - #include "vextern.h" - #undef VEXTERN -+ -+#define VEXTERN(x) VDSO64_ ## x = __vdso_ ## x; -+VEXTERN(fallback_gettimeofday) -+VEXTERN(fallback_time) -+VEXTERN(getcpu) -+#undef VEXTERN -diff -urNp linux-2.6.30.4/arch/x86/vdso/vextern.h linux-2.6.30.4/arch/x86/vdso/vextern.h ---- linux-2.6.30.4/arch/x86/vdso/vextern.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/vdso/vextern.h 2009-07-30 09:48:09.979439324 -0400 -@@ -11,6 +11,5 @@ - put into vextern.h and be referenced as a pointer with vdso prefix. - The main kernel later fills in the values. */ - --VEXTERN(jiffies) - VEXTERN(vgetcpu_mode) - VEXTERN(vsyscall_gtod_data) -diff -urNp linux-2.6.30.4/arch/x86/vdso/vma.c linux-2.6.30.4/arch/x86/vdso/vma.c ---- linux-2.6.30.4/arch/x86/vdso/vma.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/vdso/vma.c 2009-07-30 09:48:09.979439324 -0400 -@@ -8,6 +8,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -56,7 +57,7 @@ static int __init init_vdso_vars(void) - if (!vbase) - goto oom; - -- if (memcmp(vbase, "\177ELF", 4)) { -+ if (memcmp(vbase, ELFMAG, SELFMAG)) { - printk("VDSO: I'm broken; not ELF\n"); - vdso_enabled = 0; - } -@@ -65,6 +66,7 @@ static int __init init_vdso_vars(void) - *(typeof(__ ## x) **) var_ref(VDSO64_SYMBOL(vbase, x), #x) = &__ ## x; - #include "vextern.h" - #undef VEXTERN -+ vunmap(vbase); - return 0; - - oom: -@@ -123,15 +125,8 @@ int arch_setup_additional_pages(struct l - if (ret) - goto up_fail; - -- current->mm->context.vdso = (void *)addr; -+ current->mm->context.vdso = addr; - up_fail: - up_write(&mm->mmap_sem); - return ret; - } -- --static __init int vdso_setup(char *s) --{ -- vdso_enabled = simple_strtoul(s, NULL, 0); -- return 0; --} --__setup("vdso=", vdso_setup); -diff -urNp linux-2.6.30.4/arch/x86/xen/debugfs.c linux-2.6.30.4/arch/x86/xen/debugfs.c ---- linux-2.6.30.4/arch/x86/xen/debugfs.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/xen/debugfs.c 2009-07-30 09:48:09.979439324 -0400 -@@ -100,7 +100,7 @@ static int xen_array_release(struct inod - return 0; - } - --static struct file_operations u32_array_fops = { -+static const struct file_operations u32_array_fops = { - .owner = THIS_MODULE, - .open = u32_array_open, - .release= xen_array_release, -diff -urNp linux-2.6.30.4/arch/x86/xen/enlighten.c linux-2.6.30.4/arch/x86/xen/enlighten.c ---- linux-2.6.30.4/arch/x86/xen/enlighten.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/xen/enlighten.c 2009-08-04 17:23:47.808223131 -0400 -@@ -67,8 +67,6 @@ EXPORT_SYMBOL_GPL(xen_start_info); - - struct shared_info xen_dummy_shared_info; - --void *xen_initial_gdt; -- - /* - * Point at some empty memory to start with. We map the real shared_info - * page as soon as fixmap is up and running. -@@ -454,7 +452,7 @@ static void xen_write_idt_entry(gate_des - - preempt_disable(); - -- start = __get_cpu_var(idt_desc).address; -+ start = (unsigned long)__get_cpu_var(idt_desc).address; - end = start + __get_cpu_var(idt_desc).size + 1; - - xen_mc_flush(); -@@ -962,12 +960,6 @@ asmlinkage void __init xen_start_kernel( - */ - load_percpu_segment(0); - #endif -- /* -- * The only reliable way to retain the initial address of the -- * percpu gdt_page is to remember it here, so we can go and -- * mark it RW later, when the initial percpu area is freed. -- */ -- xen_initial_gdt = &per_cpu(gdt_page, 0); - - xen_smp_init(); - -diff -urNp linux-2.6.30.4/arch/x86/xen/Kconfig linux-2.6.30.4/arch/x86/xen/Kconfig ---- linux-2.6.30.4/arch/x86/xen/Kconfig 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/xen/Kconfig 2009-08-02 09:47:15.079210101 -0400 -@@ -8,6 +8,7 @@ config XEN - select PARAVIRT_CLOCK - depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS) - depends on X86_CMPXCHG && X86_TSC -+ depends on !PAX_KERNEXEC - help - This is the Linux Xen port. Enabling this will allow the - kernel to boot in a paravirtualized environment under the -diff -urNp linux-2.6.30.4/arch/x86/xen/mmu.c linux-2.6.30.4/arch/x86/xen/mmu.c ---- linux-2.6.30.4/arch/x86/xen/mmu.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/xen/mmu.c 2009-07-30 09:48:09.980662517 -0400 -@@ -1716,6 +1716,8 @@ __init pgd_t *xen_setup_kernel_pagetable - convert_pfn_mfn(init_level4_pgt); - convert_pfn_mfn(level3_ident_pgt); - convert_pfn_mfn(level3_kernel_pgt); -+ convert_pfn_mfn(level3_vmalloc_pgt); -+ convert_pfn_mfn(level3_vmemmap_pgt); - - l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd); - l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud); -@@ -1734,9 +1736,12 @@ __init pgd_t *xen_setup_kernel_pagetable - set_page_prot(init_level4_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmalloc_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO); - set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); - set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO); - - /* Pin down new L4 */ - pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE, -diff -urNp linux-2.6.30.4/arch/x86/xen/smp.c linux-2.6.30.4/arch/x86/xen/smp.c ---- linux-2.6.30.4/arch/x86/xen/smp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/xen/smp.c 2009-07-30 09:48:09.981489035 -0400 -@@ -167,11 +167,6 @@ static void __init xen_smp_prepare_boot_ - { - BUG_ON(smp_processor_id() != 0); - native_smp_prepare_boot_cpu(); -- -- /* We've switched to the "real" per-cpu gdt, so make sure the -- old memory can be recycled */ -- make_lowmem_page_readwrite(xen_initial_gdt); -- - xen_setup_vcpu_info_placement(); - } - -@@ -231,8 +226,8 @@ cpu_initialize_context(unsigned int cpu, - gdt = get_cpu_gdt_table(cpu); - - ctxt->flags = VGCF_IN_KERNEL; -- ctxt->user_regs.ds = __USER_DS; -- ctxt->user_regs.es = __USER_DS; -+ ctxt->user_regs.ds = __KERNEL_DS; -+ ctxt->user_regs.es = __KERNEL_DS; - ctxt->user_regs.ss = __KERNEL_DS; - #ifdef CONFIG_X86_32 - ctxt->user_regs.fs = __KERNEL_PERCPU; -diff -urNp linux-2.6.30.4/arch/x86/xen/xen-ops.h linux-2.6.30.4/arch/x86/xen/xen-ops.h ---- linux-2.6.30.4/arch/x86/xen/xen-ops.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/x86/xen/xen-ops.h 2009-08-04 17:23:47.809460830 -0400 -@@ -10,8 +10,6 @@ - extern const char xen_hypervisor_callback[]; - extern const char xen_failsafe_callback[]; - --extern void *xen_initial_gdt; -- - struct trap_info; - void xen_copy_trap_info(struct trap_info *traps); - -diff -urNp linux-2.6.30.4/arch/xtensa/include/asm/atomic.h linux-2.6.30.4/arch/xtensa/include/asm/atomic.h ---- linux-2.6.30.4/arch/xtensa/include/asm/atomic.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/xtensa/include/asm/atomic.h 2009-07-30 09:48:09.981489035 -0400 -@@ -165,6 +165,9 @@ static inline int atomic_sub_return(int - * Atomically increments @v by 1. - */ - #define atomic_inc(v) atomic_add(1,(v)) -+#define atomic_inc_unchecked(v) atomic_inc(v) -+#define atomic_add_unchecked(i, v) atomic_add((i), (v)) -+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v)) - - /** - * atomic_inc - increment atomic variable -diff -urNp linux-2.6.30.4/arch/xtensa/include/asm/kmap_types.h linux-2.6.30.4/arch/xtensa/include/asm/kmap_types.h ---- linux-2.6.30.4/arch/xtensa/include/asm/kmap_types.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/arch/xtensa/include/asm/kmap_types.h 2009-07-30 09:48:09.981489035 -0400 -@@ -25,6 +25,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.30.4/crypto/lrw.c linux-2.6.30.4/crypto/lrw.c ---- linux-2.6.30.4/crypto/lrw.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/crypto/lrw.c 2009-07-30 09:48:09.982442014 -0400 -@@ -60,7 +60,7 @@ static int setkey(struct crypto_tfm *par - struct priv *ctx = crypto_tfm_ctx(parent); - struct crypto_cipher *child = ctx->child; - int err, i; -- be128 tmp = { 0 }; -+ be128 tmp = { 0, 0 }; - int bsize = crypto_cipher_blocksize(child); - - crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); -diff -urNp linux-2.6.30.4/Documentation/dontdiff linux-2.6.30.4/Documentation/dontdiff ---- linux-2.6.30.4/Documentation/dontdiff 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/Documentation/dontdiff 2009-08-04 17:23:49.932547446 -0400 -@@ -3,6 +3,7 @@ - *.bin - *.cpio - *.csp -+*.dbg - *.dsp - *.dvi - *.elf -@@ -49,6 +50,10 @@ - 53c700_d.h - CVS - ChangeSet -+GPATH -+GRTAGS -+GSYMS -+GTAGS - Image - Kerntypes - Module.markers -@@ -76,6 +81,7 @@ btfixupprep - build - bvmlinux - bzImage* -+capflags.c - classlist.h* - comp*.log - compile.h* -@@ -103,9 +109,11 @@ gen_crc32table - gen_init_cpio - genksyms - *_gray256.c -+hash - ihex2fw - ikconfig.h* - initramfs_data.cpio -+initramfs_data.cpio.bz2 - initramfs_data.cpio.gz - initramfs_list - kallsyms -@@ -164,6 +172,7 @@ setup - setup.bin - setup.elf - sImage -+slabinfo - sm_tbl* - split-include - syscalltab.h -@@ -187,12 +196,16 @@ version.h* - vmlinux - vmlinux-* - vmlinux.aout -+vmlinux.bin.all -+vmlinux.bin.bz2 - vmlinux.lds -+vmlinux.relocs - vsyscall.lds - vsyscall_32.lds - wanxlfw.inc - uImage - unifdef -+utsrelease.h - wakeup.bin - wakeup.elf - wakeup.lds -diff -urNp linux-2.6.30.4/drivers/acpi/blacklist.c linux-2.6.30.4/drivers/acpi/blacklist.c ---- linux-2.6.30.4/drivers/acpi/blacklist.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/acpi/blacklist.c 2009-07-30 09:48:09.982442014 -0400 -@@ -71,7 +71,7 @@ static struct acpi_blacklist_item acpi_b - {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal, - "Incorrect _ADR", 1}, - -- {""} -+ {"", "", 0, 0, 0, all_versions, 0} - }; - - #if CONFIG_ACPI_BLACKLIST_YEAR -diff -urNp linux-2.6.30.4/drivers/acpi/osl.c linux-2.6.30.4/drivers/acpi/osl.c ---- linux-2.6.30.4/drivers/acpi/osl.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/acpi/osl.c 2009-07-30 09:48:09.986535027 -0400 -@@ -492,6 +492,8 @@ acpi_os_read_memory(acpi_physical_addres - void __iomem *virt_addr; - - virt_addr = ioremap(phys_addr, width); -+ if (!virt_addr) -+ return AE_NO_MEMORY; - if (!value) - value = &dummy; - -@@ -520,6 +522,8 @@ acpi_os_write_memory(acpi_physical_addre - void __iomem *virt_addr; - - virt_addr = ioremap(phys_addr, width); -+ if (!virt_addr) -+ return AE_NO_MEMORY; - - switch (width) { - case 8: -diff -urNp linux-2.6.30.4/drivers/acpi/processor_core.c linux-2.6.30.4/drivers/acpi/processor_core.c ---- linux-2.6.30.4/drivers/acpi/processor_core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/acpi/processor_core.c 2009-07-30 09:48:09.986535027 -0400 -@@ -703,7 +703,7 @@ static int __cpuinit acpi_processor_star - return 0; - } - -- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); -+ BUG_ON(pr->id >= nr_cpu_ids); - - /* - * Buggy BIOS check -diff -urNp linux-2.6.30.4/drivers/acpi/processor_idle.c linux-2.6.30.4/drivers/acpi/processor_idle.c ---- linux-2.6.30.4/drivers/acpi/processor_idle.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/acpi/processor_idle.c 2009-07-30 09:48:09.987663767 -0400 -@@ -108,7 +108,7 @@ static struct dmi_system_id __cpuinitdat - DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"), - DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")}, - (void *)2}, -- {}, -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}, - }; - - -diff -urNp linux-2.6.30.4/drivers/acpi/video.c linux-2.6.30.4/drivers/acpi/video.c ---- linux-2.6.30.4/drivers/acpi/video.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/acpi/video.c 2009-07-30 12:06:52.099841502 -0400 -@@ -282,7 +282,7 @@ static int acpi_video_device_brightness_ - struct file *file); - static ssize_t acpi_video_device_write_brightness(struct file *file, - const char __user *buffer, size_t count, loff_t *data); --static struct file_operations acpi_video_device_brightness_fops = { -+static const struct file_operations acpi_video_device_brightness_fops = { - .owner = THIS_MODULE, - .open = acpi_video_device_brightness_open_fs, - .read = seq_read, -diff -urNp linux-2.6.30.4/drivers/ata/ahci.c linux-2.6.30.4/drivers/ata/ahci.c ---- linux-2.6.30.4/drivers/ata/ahci.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ata/ahci.c 2009-07-30 09:48:09.987663767 -0400 -@@ -622,7 +622,7 @@ static const struct pci_device_id ahci_p - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, - -- { } /* terminate list */ -+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */ - }; - - -diff -urNp linux-2.6.30.4/drivers/ata/ata_piix.c linux-2.6.30.4/drivers/ata/ata_piix.c ---- linux-2.6.30.4/drivers/ata/ata_piix.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ata/ata_piix.c 2009-07-30 09:48:09.988577262 -0400 -@@ -293,7 +293,7 @@ static const struct pci_device_id piix_p - { 0x8086, 0x3b2d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, - /* SATA Controller IDE (PCH) */ - { 0x8086, 0x3b2e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, -- { } /* terminate list */ -+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */ - }; - - static struct pci_driver piix_pci_driver = { -@@ -607,7 +607,7 @@ static const struct ich_laptop ich_lapto - { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */ - { 0x27df, 0x104d, 0x900e }, /* ICH7 on Sony TZ-90 */ - /* end marker */ -- { 0, } -+ { 0, 0, 0 } - }; - - /** -@@ -1073,7 +1073,7 @@ static int piix_broken_suspend(void) - }, - }, - -- { } /* terminate list */ -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } /* terminate list */ - }; - static const char *oemstrs[] = { - "Tecra M3,", -diff -urNp linux-2.6.30.4/drivers/ata/libata-core.c linux-2.6.30.4/drivers/ata/libata-core.c ---- linux-2.6.30.4/drivers/ata/libata-core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ata/libata-core.c 2009-07-30 09:48:09.989999430 -0400 -@@ -890,7 +890,7 @@ static const struct ata_xfer_ent { - { ATA_SHIFT_PIO, ATA_NR_PIO_MODES, XFER_PIO_0 }, - { ATA_SHIFT_MWDMA, ATA_NR_MWDMA_MODES, XFER_MW_DMA_0 }, - { ATA_SHIFT_UDMA, ATA_NR_UDMA_MODES, XFER_UDMA_0 }, -- { -1, }, -+ { -1, 0, 0 } - }; - - /** -@@ -3129,7 +3129,7 @@ static const struct ata_timing ata_timin - { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 0, 20 }, - { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 0, 15 }, - -- { 0xFF } -+ { 0xFF, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - #define ENOUGH(v, unit) (((v)-1)/(unit)+1) -@@ -4293,7 +4293,7 @@ static const struct ata_blacklist_entry - { "WD My Book", NULL, ATA_HORKAGE_1_5_GBPS, }, - - /* End Marker */ -- { } -+ { NULL, NULL, 0 } - }; - - static int strn_pattern_cmp(const char *patt, const char *name, int wildchar) -diff -urNp linux-2.6.30.4/drivers/atm/adummy.c linux-2.6.30.4/drivers/atm/adummy.c ---- linux-2.6.30.4/drivers/atm/adummy.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/adummy.c 2009-07-30 09:48:09.989999430 -0400 -@@ -77,7 +77,7 @@ adummy_send(struct atm_vcc *vcc, struct - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff -urNp linux-2.6.30.4/drivers/atm/ambassador.c linux-2.6.30.4/drivers/atm/ambassador.c ---- linux-2.6.30.4/drivers/atm/ambassador.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/ambassador.c 2009-07-30 09:48:09.990535817 -0400 -@@ -453,7 +453,7 @@ static void tx_complete (amb_dev * dev, - PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx); - - // VC layer stats -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - // free the descriptor - kfree (tx_descr); -@@ -494,7 +494,7 @@ static void rx_complete (amb_dev * dev, - dump_skb ("<<<", vc, skb); - - // VC layer stats -- atomic_inc(&atm_vcc->stats->rx); -+ atomic_inc_unchecked(&atm_vcc->stats->rx); - __net_timestamp(skb); - // end of our responsability - atm_vcc->push (atm_vcc, skb); -@@ -509,7 +509,7 @@ static void rx_complete (amb_dev * dev, - } else { - PRINTK (KERN_INFO, "dropped over-size frame"); - // should we count this? -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - } - - } else { -@@ -1349,7 +1349,7 @@ static int amb_send (struct atm_vcc * at - } - - if (check_area (skb->data, skb->len)) { -- atomic_inc(&atm_vcc->stats->tx_err); -+ atomic_inc_unchecked(&atm_vcc->stats->tx_err); - return -ENOMEM; // ? - } - -diff -urNp linux-2.6.30.4/drivers/atm/atmtcp.c linux-2.6.30.4/drivers/atm/atmtcp.c ---- linux-2.6.30.4/drivers/atm/atmtcp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/atmtcp.c 2009-07-30 09:48:09.991629377 -0400 -@@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); - if (dev_data) return 0; -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOLINK; - } - size = skb->len+sizeof(struct atmtcp_hdr); -@@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc - if (!new_skb) { - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOBUFS; - } - hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr)); -@@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); - out_vcc->push(out_vcc,new_skb); -- atomic_inc(&vcc->stats->tx); -- atomic_inc(&out_vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->tx); -+ atomic_inc_unchecked(&out_vcc->stats->rx); - return 0; - } - -@@ -300,7 +300,7 @@ static int atmtcp_c_send(struct atm_vcc - out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci)); - read_unlock(&vcc_sklist_lock); - if (!out_vcc) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - goto done; - } - skb_pull(skb,sizeof(struct atmtcp_hdr)); -@@ -312,8 +312,8 @@ static int atmtcp_c_send(struct atm_vcc - __net_timestamp(new_skb); - skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len); - out_vcc->push(out_vcc,new_skb); -- atomic_inc(&vcc->stats->tx); -- atomic_inc(&out_vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->tx); -+ atomic_inc_unchecked(&out_vcc->stats->rx); - done: - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); -diff -urNp linux-2.6.30.4/drivers/atm/eni.c linux-2.6.30.4/drivers/atm/eni.c ---- linux-2.6.30.4/drivers/atm/eni.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/eni.c 2009-07-30 09:48:09.991629377 -0400 -@@ -525,7 +525,7 @@ static int rx_aal0(struct atm_vcc *vcc) - DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n", - vcc->dev->number); - length = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - else { - length = ATM_CELL_SIZE-1; /* no HEC */ -@@ -580,7 +580,7 @@ static int rx_aal5(struct atm_vcc *vcc) - size); - } - eff = length = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - else { - size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2); -@@ -597,7 +597,7 @@ static int rx_aal5(struct atm_vcc *vcc) - "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n", - vcc->dev->number,vcc->vci,length,size << 2,descr); - length = eff = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - } - skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL; -@@ -770,7 +770,7 @@ rx_dequeued++; - vcc->push(vcc,skb); - pushed++; - } -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - wake_up(&eni_dev->rx_wait); - } -@@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *d - PCI_DMA_TODEVICE); - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb_irq(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - wake_up(&eni_dev->tx_wait); - dma_complete++; - } -diff -urNp linux-2.6.30.4/drivers/atm/firestream.c linux-2.6.30.4/drivers/atm/firestream.c ---- linux-2.6.30.4/drivers/atm/firestream.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/firestream.c 2009-07-30 09:48:09.992530374 -0400 -@@ -748,7 +748,7 @@ static void process_txdone_queue (struct - } - } - -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - fs_dprintk (FS_DEBUG_TXMEM, "i"); - fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb); -@@ -815,7 +815,7 @@ static void process_incoming (struct fs_ - #endif - skb_put (skb, qe->p1 & 0xffff); - ATM_SKB(skb)->vcc = atm_vcc; -- atomic_inc(&atm_vcc->stats->rx); -+ atomic_inc_unchecked(&atm_vcc->stats->rx); - __net_timestamp(skb); - fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb); - atm_vcc->push (atm_vcc, skb); -@@ -836,12 +836,12 @@ static void process_incoming (struct fs_ - kfree (pe); - } - if (atm_vcc) -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - break; - case 0x1f: /* Reassembly abort: no buffers. */ - /* Silently increment error counter. */ - if (atm_vcc) -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - break; - default: /* Hmm. Haven't written the code to handle the others yet... -- REW */ - printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", -diff -urNp linux-2.6.30.4/drivers/atm/fore200e.c linux-2.6.30.4/drivers/atm/fore200e.c ---- linux-2.6.30.4/drivers/atm/fore200e.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/fore200e.c 2009-07-30 09:48:09.993922247 -0400 -@@ -931,9 +931,9 @@ fore200e_tx_irq(struct fore200e* fore200 - #endif - /* check error condition */ - if (*entry->status & STATUS_ERROR) -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - else -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - } - -@@ -1082,7 +1082,7 @@ fore200e_push_rpd(struct fore200e* fore2 - if (skb == NULL) { - DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); - -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return -ENOMEM; - } - -@@ -1125,14 +1125,14 @@ fore200e_push_rpd(struct fore200e* fore2 - - dev_kfree_skb_any(skb); - -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return -ENOMEM; - } - - ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); - -@@ -1210,7 +1210,7 @@ fore200e_rx_irq(struct fore200e* fore200 - DPRINTK(2, "damaged PDU on %d.%d.%d\n", - fore200e->atm_dev->number, - entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - } - -@@ -1655,7 +1655,7 @@ fore200e_send(struct atm_vcc *vcc, struc - goto retry_here; - } - -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - - fore200e->tx_sat++; - DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", -diff -urNp linux-2.6.30.4/drivers/atm/he.c linux-2.6.30.4/drivers/atm/he.c ---- linux-2.6.30.4/drivers/atm/he.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/he.c 2009-07-30 09:48:09.994421569 -0400 -@@ -1728,7 +1728,7 @@ he_service_rbrq(struct he_dev *he_dev, i - - if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) { - hprintk("HBUF_ERR! (cid 0x%x)\n", cid); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto return_host_buffers; - } - -@@ -1761,7 +1761,7 @@ he_service_rbrq(struct he_dev *he_dev, i - RBRQ_LEN_ERR(he_dev->rbrq_head) - ? "LEN_ERR" : "", - vcc->vpi, vcc->vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto return_host_buffers; - } - -@@ -1820,7 +1820,7 @@ he_service_rbrq(struct he_dev *he_dev, i - vcc->push(vcc, skb); - spin_lock(&he_dev->global_lock); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return_host_buffers: - ++pdus_assembled; -@@ -2165,7 +2165,7 @@ __enqueue_tpd(struct he_dev *he_dev, str - tpd->vcc->pop(tpd->vcc, tpd->skb); - else - dev_kfree_skb_any(tpd->skb); -- atomic_inc(&tpd->vcc->stats->tx_err); -+ atomic_inc_unchecked(&tpd->vcc->stats->tx_err); - } - pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); - return; -@@ -2577,7 +2577,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -EINVAL; - } - -@@ -2588,7 +2588,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -EINVAL; - } - #endif -@@ -2600,7 +2600,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - return -ENOMEM; - } -@@ -2642,7 +2642,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - return -ENOMEM; - } -@@ -2673,7 +2673,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - __enqueue_tpd(he_dev, tpd, cid); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff -urNp linux-2.6.30.4/drivers/atm/horizon.c linux-2.6.30.4/drivers/atm/horizon.c ---- linux-2.6.30.4/drivers/atm/horizon.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/horizon.c 2009-07-30 09:48:09.994421569 -0400 -@@ -1033,7 +1033,7 @@ static void rx_schedule (hrz_dev * dev, - { - struct atm_vcc * vcc = ATM_SKB(skb)->vcc; - // VC layer stats -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - __net_timestamp(skb); - // end of our responsability - vcc->push (vcc, skb); -@@ -1185,7 +1185,7 @@ static void tx_schedule (hrz_dev * const - dev->tx_iovec = NULL; - - // VC layer stats -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - // free the skb - hrz_kfree_skb (skb); -diff -urNp linux-2.6.30.4/drivers/atm/idt77252.c linux-2.6.30.4/drivers/atm/idt77252.c ---- linux-2.6.30.4/drivers/atm/idt77252.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/idt77252.c 2009-07-30 09:48:09.995868107 -0400 -@@ -810,7 +810,7 @@ drain_scq(struct idt77252_dev *card, str - else - dev_kfree_skb(skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - - atomic_dec(&scq->used); -@@ -1073,13 +1073,13 @@ dequeue_rx(struct idt77252_dev *card, st - if ((sb = dev_alloc_skb(64)) == NULL) { - printk("%s: Can't allocate buffers for aal0.\n", - card->name); -- atomic_add(i, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i, &vcc->stats->rx_drop); - break; - } - if (!atm_charge(vcc, sb->truesize)) { - RXPRINTK("%s: atm_charge() dropped aal0 packets.\n", - card->name); -- atomic_add(i - 1, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); - dev_kfree_skb(sb); - break; - } -@@ -1096,7 +1096,7 @@ dequeue_rx(struct idt77252_dev *card, st - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - cell += ATM_CELL_PAYLOAD; - } -@@ -1133,13 +1133,13 @@ dequeue_rx(struct idt77252_dev *card, st - "(CDC: %08x)\n", - card->name, len, rpp->len, readl(SAR_REG_CDC)); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (stat & SAR_RSQE_CRC) { - RXPRINTK("%s: AAL5 CRC error.\n", card->name); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (skb_queue_len(&rpp->queue) > 1) { -@@ -1150,7 +1150,7 @@ dequeue_rx(struct idt77252_dev *card, st - RXPRINTK("%s: Can't alloc RX skb.\n", - card->name); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (!atm_charge(vcc, skb->truesize)) { -@@ -1169,7 +1169,7 @@ dequeue_rx(struct idt77252_dev *card, st - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return; - } -@@ -1191,7 +1191,7 @@ dequeue_rx(struct idt77252_dev *card, st - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - if (skb->truesize > SAR_FB_SIZE_3) - add_rx_skb(card, 3, SAR_FB_SIZE_3, 1); -@@ -1303,14 +1303,14 @@ idt77252_rx_raw(struct idt77252_dev *car - if (vcc->qos.aal != ATM_AAL0) { - RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n", - card->name, vpi, vci); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto drop; - } - - if ((sb = dev_alloc_skb(64)) == NULL) { - printk("%s: Can't allocate buffers for AAL0.\n", - card->name); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto drop; - } - -@@ -1329,7 +1329,7 @@ idt77252_rx_raw(struct idt77252_dev *car - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - drop: - skb_pull(queue, 64); -@@ -1954,13 +1954,13 @@ idt77252_send_skb(struct atm_vcc *vcc, s - - if (vc == NULL) { - printk("%s: NULL connection in send().\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } - if (!test_bit(VCF_TX, &vc->flags)) { - printk("%s: Trying to transmit on a non-tx VC.\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } -@@ -1972,14 +1972,14 @@ idt77252_send_skb(struct atm_vcc *vcc, s - break; - default: - printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } - - if (skb_shinfo(skb)->nr_frags != 0) { - printk("%s: No scatter-gather yet.\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } -@@ -1987,7 +1987,7 @@ idt77252_send_skb(struct atm_vcc *vcc, s - - err = queue_skb(card, vc, skb, oam); - if (err) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return err; - } -@@ -2010,7 +2010,7 @@ idt77252_send_oam(struct atm_vcc *vcc, v - skb = dev_alloc_skb(64); - if (!skb) { - printk("%s: Out of memory in send_oam().\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOMEM; - } - atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc); -diff -urNp linux-2.6.30.4/drivers/atm/iphase.c linux-2.6.30.4/drivers/atm/iphase.c ---- linux-2.6.30.4/drivers/atm/iphase.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/iphase.c 2009-07-30 09:48:09.996522301 -0400 -@@ -1123,7 +1123,7 @@ static int rx_pkt(struct atm_dev *dev) - status = (u_short) (buf_desc_ptr->desc_mode); - if (status & (RX_CER | RX_PTE | RX_OFL)) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - IF_ERR(printk("IA: bad packet, dropping it");) - if (status & RX_CER) { - IF_ERR(printk(" cause: packet CRC error\n");) -@@ -1146,7 +1146,7 @@ static int rx_pkt(struct atm_dev *dev) - len = dma_addr - buf_addr; - if (len > iadev->rx_buf_sz) { - printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out_free_desc; - } - -@@ -1296,7 +1296,7 @@ static void rx_dle_intr(struct atm_dev * - ia_vcc = INPH_IA_VCC(vcc); - if (ia_vcc == NULL) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - dev_kfree_skb_any(skb); - atm_return(vcc, atm_guess_pdu2truesize(len)); - goto INCR_DLE; -@@ -1308,7 +1308,7 @@ static void rx_dle_intr(struct atm_dev * - if ((length > iadev->rx_buf_sz) || (length > - (skb->len - sizeof(struct cpcs_trailer)))) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)", - length, skb->len);) - dev_kfree_skb_any(skb); -@@ -1324,7 +1324,7 @@ static void rx_dle_intr(struct atm_dev * - - IF_RX(printk("rx_dle_intr: skb push");) - vcc->push(vcc,skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - iadev->rx_pkt_cnt++; - } - INCR_DLE: -@@ -2919,7 +2919,7 @@ static int ia_pkt_tx (struct atm_vcc *vc - if ((desc == 0) || (desc > iadev->num_tx_desc)) - { - IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - if (vcc->pop) - vcc->pop(vcc, skb); - else -@@ -3024,7 +3024,7 @@ static int ia_pkt_tx (struct atm_vcc *vc - ATM_DESC(skb) = vcc->vci; - skb_queue_tail(&iadev->tx_dma_q, skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - iadev->tx_pkt_cnt++; - /* Increment transaction counter */ - writel(2, iadev->dma+IPHASE5575_TX_COUNTER); -diff -urNp linux-2.6.30.4/drivers/atm/lanai.c linux-2.6.30.4/drivers/atm/lanai.c ---- linux-2.6.30.4/drivers/atm/lanai.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/lanai.c 2009-07-30 09:48:09.997872955 -0400 -@@ -1305,7 +1305,7 @@ static void lanai_send_one_aal5(struct l - vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0); - lanai_endtx(lanai, lvcc); - lanai_free_skb(lvcc->tx.atmvcc, skb); -- atomic_inc(&lvcc->tx.atmvcc->stats->tx); -+ atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx); - } - - /* Try to fill the buffer - don't call unless there is backlog */ -@@ -1428,7 +1428,7 @@ static void vcc_rx_aal5(struct lanai_vcc - ATM_SKB(skb)->vcc = lvcc->rx.atmvcc; - __net_timestamp(skb); - lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx); - out: - lvcc->rx.buf.ptr = end; - cardvcc_write(lvcc, endptr, vcc_rxreadptr); -@@ -1670,7 +1670,7 @@ static int handle_service(struct lanai_d - DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 " - "vcc %d\n", lanai->number, (unsigned int) s, vci); - lanai->stats.service_rxnotaal5++; -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - return 0; - } - if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) { -@@ -1682,7 +1682,7 @@ static int handle_service(struct lanai_d - int bytes; - read_unlock(&vcc_sklist_lock); - DPRINTK("got trashed rx pdu on vci %d\n", vci); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_trash++; - bytes = (SERVICE_GET_END(s) * 16) - - (((unsigned long) lvcc->rx.buf.ptr) - -@@ -1694,7 +1694,7 @@ static int handle_service(struct lanai_d - } - if (s & SERVICE_STREAM) { - read_unlock(&vcc_sklist_lock); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_stream++; - printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream " - "PDU on VCI %d!\n", lanai->number, vci); -@@ -1702,7 +1702,7 @@ static int handle_service(struct lanai_d - return 0; - } - DPRINTK("got rx crc error on vci %d\n", vci); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_rxcrc++; - lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4]; - cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr); -diff -urNp linux-2.6.30.4/drivers/atm/nicstar.c linux-2.6.30.4/drivers/atm/nicstar.c ---- linux-2.6.30.4/drivers/atm/nicstar.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/nicstar.c 2009-07-30 09:48:09.998576713 -0400 -@@ -1723,7 +1723,7 @@ static int ns_send(struct atm_vcc *vcc, - if ((vc = (vc_map *) vcc->dev_data) == NULL) - { - printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n", card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1731,7 +1731,7 @@ static int ns_send(struct atm_vcc *vcc, - if (!vc->tx) - { - printk("nicstar%d: Trying to transmit on a non-tx VC.\n", card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1739,7 +1739,7 @@ static int ns_send(struct atm_vcc *vcc, - if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) - { - printk("nicstar%d: Only AAL0 and AAL5 are supported.\n", card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1747,7 +1747,7 @@ static int ns_send(struct atm_vcc *vcc, - if (skb_shinfo(skb)->nr_frags != 0) - { - printk("nicstar%d: No scatter-gather yet.\n", card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1792,11 +1792,11 @@ static int ns_send(struct atm_vcc *vcc, - - if (push_scqe(card, vc, scq, &scqe, skb) != 0) - { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EIO; - } -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -@@ -2111,14 +2111,14 @@ static void dequeue_rx(ns_dev *card, ns_ - { - printk("nicstar%d: Can't allocate buffers for aal0.\n", - card->index); -- atomic_add(i,&vcc->stats->rx_drop); -+ atomic_add_unchecked(i,&vcc->stats->rx_drop); - break; - } - if (!atm_charge(vcc, sb->truesize)) - { - RXPRINTK("nicstar%d: atm_charge() dropped aal0 packets.\n", - card->index); -- atomic_add(i-1,&vcc->stats->rx_drop); /* already increased by 1 */ -+ atomic_add_unchecked(i-1,&vcc->stats->rx_drop); /* already increased by 1 */ - dev_kfree_skb_any(sb); - break; - } -@@ -2133,7 +2133,7 @@ static void dequeue_rx(ns_dev *card, ns_ - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - cell += ATM_CELL_PAYLOAD; - } - -@@ -2152,7 +2152,7 @@ static void dequeue_rx(ns_dev *card, ns_ - if (iovb == NULL) - { - printk("nicstar%d: Out of iovec buffers.\n", card->index); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - recycle_rx_buf(card, skb); - return; - } -@@ -2182,7 +2182,7 @@ static void dequeue_rx(ns_dev *card, ns_ - else if (NS_SKB(iovb)->iovcnt >= NS_MAX_IOVECS) - { - printk("nicstar%d: received too big AAL5 SDU.\n", card->index); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *) iovb->data, NS_MAX_IOVECS); - NS_SKB(iovb)->iovcnt = 0; - iovb->len = 0; -@@ -2202,7 +2202,7 @@ static void dequeue_rx(ns_dev *card, ns_ - printk("nicstar%d: Expected a small buffer, and this is not one.\n", - card->index); - which_list(card, skb); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_rx_buf(card, skb); - vc->rx_iov = NULL; - recycle_iov_buf(card, iovb); -@@ -2216,7 +2216,7 @@ static void dequeue_rx(ns_dev *card, ns_ - printk("nicstar%d: Expected a large buffer, and this is not one.\n", - card->index); - which_list(card, skb); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *) iovb->data, - NS_SKB(iovb)->iovcnt); - vc->rx_iov = NULL; -@@ -2240,7 +2240,7 @@ static void dequeue_rx(ns_dev *card, ns_ - printk(" - PDU size mismatch.\n"); - else - printk(".\n"); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *) iovb->data, - NS_SKB(iovb)->iovcnt); - vc->rx_iov = NULL; -@@ -2256,7 +2256,7 @@ static void dequeue_rx(ns_dev *card, ns_ - if (!atm_charge(vcc, skb->truesize)) - { - push_rxbufs(card, skb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } - else - { -@@ -2268,7 +2268,7 @@ static void dequeue_rx(ns_dev *card, ns_ - ATM_SKB(skb)->vcc = vcc; - __net_timestamp(skb); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } - else if (NS_SKB(iovb)->iovcnt == 2) /* One small plus one large buffer */ -@@ -2283,7 +2283,7 @@ static void dequeue_rx(ns_dev *card, ns_ - if (!atm_charge(vcc, sb->truesize)) - { - push_rxbufs(card, sb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } - else - { -@@ -2295,7 +2295,7 @@ static void dequeue_rx(ns_dev *card, ns_ - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - - push_rxbufs(card, skb); -@@ -2306,7 +2306,7 @@ static void dequeue_rx(ns_dev *card, ns_ - if (!atm_charge(vcc, skb->truesize)) - { - push_rxbufs(card, skb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } - else - { -@@ -2320,7 +2320,7 @@ static void dequeue_rx(ns_dev *card, ns_ - ATM_SKB(skb)->vcc = vcc; - __net_timestamp(skb); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - - push_rxbufs(card, sb); -@@ -2342,7 +2342,7 @@ static void dequeue_rx(ns_dev *card, ns_ - if (hb == NULL) - { - printk("nicstar%d: Out of huge buffers.\n", card->index); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - recycle_iovec_rx_bufs(card, (struct iovec *) iovb->data, - NS_SKB(iovb)->iovcnt); - vc->rx_iov = NULL; -@@ -2393,7 +2393,7 @@ static void dequeue_rx(ns_dev *card, ns_ - } - else - dev_kfree_skb_any(hb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } - else - { -@@ -2427,7 +2427,7 @@ static void dequeue_rx(ns_dev *card, ns_ - #endif /* NS_USE_DESTRUCTORS */ - __net_timestamp(hb); - vcc->push(vcc, hb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } - -diff -urNp linux-2.6.30.4/drivers/atm/solos-pci.c linux-2.6.30.4/drivers/atm/solos-pci.c ---- linux-2.6.30.4/drivers/atm/solos-pci.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/solos-pci.c 2009-07-30 09:48:09.998576713 -0400 -@@ -663,7 +663,7 @@ void solos_bh(unsigned long card_arg) - } - atm_charge(vcc, skb->truesize); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - break; - - case PKT_STATUS: -@@ -966,7 +966,7 @@ static uint32_t fpga_tx(struct solos_car - vcc = SKB_CB(oldskb)->vcc; - - if (vcc) { -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - solos_pop(vcc, oldskb); - } else - dev_kfree_skb_irq(oldskb); -diff -urNp linux-2.6.30.4/drivers/atm/suni.c linux-2.6.30.4/drivers/atm/suni.c ---- linux-2.6.30.4/drivers/atm/suni.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/suni.c 2009-07-30 09:48:09.998576713 -0400 -@@ -49,7 +49,7 @@ static DEFINE_SPINLOCK(sunis_lock); - - - #define ADD_LIMITED(s,v) \ -- atomic_add((v),&stats->s); \ -+ atomic_add_unchecked((v),&stats->s); \ - if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX); - - -diff -urNp linux-2.6.30.4/drivers/atm/uPD98402.c linux-2.6.30.4/drivers/atm/uPD98402.c ---- linux-2.6.30.4/drivers/atm/uPD98402.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/uPD98402.c 2009-07-30 09:48:09.999830275 -0400 -@@ -41,7 +41,7 @@ static int fetch_stats(struct atm_dev *d - struct sonet_stats tmp; - int error = 0; - -- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); -+ atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); - sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp); - if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp)); - if (zero && !error) { -@@ -160,7 +160,7 @@ static int uPD98402_ioctl(struct atm_dev - - - #define ADD_LIMITED(s,v) \ -- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \ -+ { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \ - if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \ - atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); } - -@@ -193,7 +193,7 @@ static void uPD98402_int(struct atm_dev - if (reason & uPD98402_INT_PFM) stat_event(dev); - if (reason & uPD98402_INT_PCO) { - (void) GET(PCOCR); /* clear interrupt cause */ -- atomic_add(GET(HECCT), -+ atomic_add_unchecked(GET(HECCT), - &PRIV(dev)->sonet_stats.uncorr_hcs); - } - if ((reason & uPD98402_INT_RFO) && -diff -urNp linux-2.6.30.4/drivers/atm/zatm.c linux-2.6.30.4/drivers/atm/zatm.c ---- linux-2.6.30.4/drivers/atm/zatm.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/atm/zatm.c 2009-07-30 09:48:09.999830275 -0400 -@@ -458,7 +458,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy - } - if (!size) { - dev_kfree_skb_irq(skb); -- if (vcc) atomic_inc(&vcc->stats->rx_err); -+ if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err); - continue; - } - if (!atm_charge(vcc,skb->truesize)) { -@@ -468,7 +468,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy - skb->len = size; - ATM_SKB(skb)->vcc = vcc; - vcc->push(vcc,skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - zout(pos & 0xffff,MTA(mbx)); - #if 0 /* probably a stupid idea */ -@@ -732,7 +732,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD - skb_queue_head(&zatm_vcc->backlog,skb); - break; - } -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - wake_up(&zatm_vcc->tx_wait); - } - -diff -urNp linux-2.6.30.4/drivers/block/cciss.c linux-2.6.30.4/drivers/block/cciss.c ---- linux-2.6.30.4/drivers/block/cciss.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/block/cciss.c 2009-07-30 09:48:10.000592968 -0400 -@@ -351,7 +351,7 @@ static void cciss_seq_stop(struct seq_fi - h->busy_configuring = 0; - } - --static struct seq_operations cciss_seq_ops = { -+static const struct seq_operations cciss_seq_ops = { - .start = cciss_seq_start, - .show = cciss_seq_show, - .next = cciss_seq_next, -@@ -414,7 +414,7 @@ out: - return err; - } - --static struct file_operations cciss_proc_fops = { -+static const struct file_operations cciss_proc_fops = { - .owner = THIS_MODULE, - .open = cciss_seq_open, - .read = seq_read, -diff -urNp linux-2.6.30.4/drivers/char/agp/alpha-agp.c linux-2.6.30.4/drivers/char/agp/alpha-agp.c ---- linux-2.6.30.4/drivers/char/agp/alpha-agp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/agp/alpha-agp.c 2009-07-30 09:48:10.000592968 -0400 -@@ -40,7 +40,7 @@ static struct aper_size_info_fixed alpha - { 0, 0, 0 }, /* filled in by alpha_core_agp_setup */ - }; - --struct vm_operations_struct alpha_core_agp_vm_ops = { -+const struct vm_operations_struct alpha_core_agp_vm_ops = { - .fault = alpha_core_agp_vm_fault, - }; - -diff -urNp linux-2.6.30.4/drivers/char/agp/frontend.c linux-2.6.30.4/drivers/char/agp/frontend.c ---- linux-2.6.30.4/drivers/char/agp/frontend.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/agp/frontend.c 2009-07-30 09:48:10.001783459 -0400 -@@ -824,7 +824,7 @@ static int agpioc_reserve_wrap(struct ag - if (copy_from_user(&reserve, arg, sizeof(struct agp_region))) - return -EFAULT; - -- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment)) -+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv)) - return -EFAULT; - - client = agp_find_client_by_pid(reserve.pid); -diff -urNp linux-2.6.30.4/drivers/char/agp/intel-agp.c linux-2.6.30.4/drivers/char/agp/intel-agp.c ---- linux-2.6.30.4/drivers/char/agp/intel-agp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/agp/intel-agp.c 2009-07-30 09:48:10.002661044 -0400 -@@ -2387,7 +2387,7 @@ static struct pci_device_id agp_intel_pc - ID(PCI_DEVICE_ID_INTEL_Q45_HB), - ID(PCI_DEVICE_ID_INTEL_G45_HB), - ID(PCI_DEVICE_ID_INTEL_G41_HB), -- { } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, agp_intel_pci_table); -diff -urNp linux-2.6.30.4/drivers/char/apm-emulation.c linux-2.6.30.4/drivers/char/apm-emulation.c ---- linux-2.6.30.4/drivers/char/apm-emulation.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/apm-emulation.c 2009-07-30 09:48:10.002661044 -0400 -@@ -393,7 +393,7 @@ static int apm_open(struct inode * inode - return as ? 0 : -ENOMEM; - } - --static struct file_operations apm_bios_fops = { -+static const struct file_operations apm_bios_fops = { - .owner = THIS_MODULE, - .read = apm_read, - .poll = apm_poll, -diff -urNp linux-2.6.30.4/drivers/char/bfin-otp.c linux-2.6.30.4/drivers/char/bfin-otp.c ---- linux-2.6.30.4/drivers/char/bfin-otp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/bfin-otp.c 2009-07-30 09:48:10.003480690 -0400 -@@ -133,7 +133,7 @@ static ssize_t bfin_otp_write(struct fil - # define bfin_otp_write NULL - #endif - --static struct file_operations bfin_otp_fops = { -+static const struct file_operations bfin_otp_fops = { - .owner = THIS_MODULE, - .read = bfin_otp_read, - .write = bfin_otp_write, -diff -urNp linux-2.6.30.4/drivers/char/hpet.c linux-2.6.30.4/drivers/char/hpet.c ---- linux-2.6.30.4/drivers/char/hpet.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/hpet.c 2009-07-30 09:48:10.003480690 -0400 -@@ -995,7 +995,7 @@ static struct acpi_driver hpet_acpi_driv - }, - }; - --static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops }; -+static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops, {NULL, NULL}, NULL, NULL }; - - static int __init hpet_init(void) - { -diff -urNp linux-2.6.30.4/drivers/char/ipmi/ipmi_msghandler.c linux-2.6.30.4/drivers/char/ipmi/ipmi_msghandler.c ---- linux-2.6.30.4/drivers/char/ipmi/ipmi_msghandler.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/ipmi/ipmi_msghandler.c 2009-07-30 09:48:10.004509700 -0400 -@@ -413,7 +413,7 @@ struct ipmi_smi { - struct proc_dir_entry *proc_dir; - char proc_dir_name[10]; - -- atomic_t stats[IPMI_NUM_STATS]; -+ atomic_unchecked_t stats[IPMI_NUM_STATS]; - - /* - * run_to_completion duplicate of smb_info, smi_info -@@ -446,7 +446,7 @@ static DEFINE_MUTEX(smi_watchers_mutex); - - - #define ipmi_inc_stat(intf, stat) \ -- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat]) -+ atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]) - #define ipmi_get_stat(intf, stat) \ - ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat])) - -diff -urNp linux-2.6.30.4/drivers/char/ipmi/ipmi_si_intf.c linux-2.6.30.4/drivers/char/ipmi/ipmi_si_intf.c ---- linux-2.6.30.4/drivers/char/ipmi/ipmi_si_intf.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/ipmi/ipmi_si_intf.c 2009-07-30 09:48:10.005414644 -0400 -@@ -277,7 +277,7 @@ struct smi_info { - unsigned char slave_addr; - - /* Counters and things for the proc filesystem. */ -- atomic_t stats[SI_NUM_STATS]; -+ atomic_unchecked_t stats[SI_NUM_STATS]; - - struct task_struct *thread; - -@@ -285,7 +285,7 @@ struct smi_info { - }; - - #define smi_inc_stat(smi, stat) \ -- atomic_inc(&(smi)->stats[SI_STAT_ ## stat]) -+ atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat]) - #define smi_get_stat(smi, stat) \ - ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat])) - -diff -urNp linux-2.6.30.4/drivers/char/keyboard.c linux-2.6.30.4/drivers/char/keyboard.c ---- linux-2.6.30.4/drivers/char/keyboard.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/keyboard.c 2009-07-30 11:10:48.982870250 -0400 -@@ -635,6 +635,16 @@ static void k_spec(struct vc_data *vc, u - kbd->kbdmode == VC_MEDIUMRAW) && - value != KVAL(K_SAK)) - return; /* SAK is allowed even in raw mode */ -+ -+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP) -+ { -+ void *func = fn_handler[value]; -+ if (func == fn_show_state || func == fn_show_ptregs || -+ func == fn_show_mem) -+ return; -+ } -+#endif -+ - fn_handler[value](vc); - } - -@@ -1388,7 +1398,7 @@ static const struct input_device_id kbd_ - .evbit = { BIT_MASK(EV_SND) }, - }, - -- { }, /* Terminating entry */ -+ { 0 }, /* Terminating entry */ - }; - - MODULE_DEVICE_TABLE(input, kbd_ids); -diff -urNp linux-2.6.30.4/drivers/char/mem.c linux-2.6.30.4/drivers/char/mem.c ---- linux-2.6.30.4/drivers/char/mem.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/mem.c 2009-07-30 12:07:09.578070399 -0400 -@@ -18,6 +18,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -35,6 +36,10 @@ - # include - #endif - -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+extern struct file_operations grsec_fops; -+#endif -+ - /* - * Architectures vary in how they handle caching for addresses - * outside of main memory. -@@ -192,6 +197,11 @@ static ssize_t write_mem(struct file * f - if (!valid_phys_addr_range(p, count)) - return -EFAULT; - -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_mem_write(); -+ return -EPERM; -+#endif -+ - written = 0; - - #ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED -@@ -301,7 +311,7 @@ static inline int private_mapping_ok(str - } - #endif - --static struct vm_operations_struct mmap_mem_ops = { -+static const struct vm_operations_struct mmap_mem_ops = { - #ifdef CONFIG_HAVE_IOREMAP_PROT - .access = generic_access_phys - #endif -@@ -324,6 +334,11 @@ static int mmap_mem(struct file * file, - &vma->vm_page_prot)) - return -EINVAL; - -+#ifdef CONFIG_GRKERNSEC_KMEM -+ if (gr_handle_mem_mmap(vma->vm_pgoff << PAGE_SHIFT, vma)) -+ return -EPERM; -+#endif -+ - vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff, - size, - vma->vm_page_prot); -@@ -558,6 +573,11 @@ static ssize_t write_kmem(struct file * - ssize_t written; - char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */ - -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_kmem_write(); -+ return -EPERM; -+#endif -+ - if (p < (unsigned long) high_memory) { - - wrote = count; -@@ -764,6 +784,16 @@ static loff_t memory_lseek(struct file * - - static int open_port(struct inode * inode, struct file * filp) - { -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_open_port(); -+ return -EPERM; -+#endif -+ -+ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; -+} -+ -+static int open_mem(struct inode * inode, struct file * filp) -+{ - return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; - } - -@@ -771,7 +801,6 @@ static int open_port(struct inode * inod - #define full_lseek null_lseek - #define write_zero write_null - #define read_full read_zero --#define open_mem open_port - #define open_kmem open_mem - #define open_oldmem open_mem - -@@ -911,6 +940,11 @@ static int memory_open(struct inode * in - filp->f_op = &oldmem_fops; - break; - #endif -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+ case 13: -+ filp->f_op = &grsec_fops; -+ break; -+#endif - default: - unlock_kernel(); - return -ENXIO; -@@ -947,6 +981,9 @@ static const struct { - #ifdef CONFIG_CRASH_DUMP - {12,"oldmem", S_IRUSR | S_IWUSR | S_IRGRP, &oldmem_fops}, - #endif -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+ {13,"grsec", S_IRUSR | S_IWUGO, &grsec_fops}, -+#endif - }; - - static struct class *mem_class; -diff -urNp linux-2.6.30.4/drivers/char/misc.c linux-2.6.30.4/drivers/char/misc.c ---- linux-2.6.30.4/drivers/char/misc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/misc.c 2009-07-30 09:48:10.006662764 -0400 -@@ -91,7 +91,7 @@ static int misc_seq_show(struct seq_file - } - - --static struct seq_operations misc_seq_ops = { -+static const struct seq_operations misc_seq_ops = { - .start = misc_seq_start, - .next = misc_seq_next, - .stop = misc_seq_stop, -diff -urNp linux-2.6.30.4/drivers/char/mspec.c linux-2.6.30.4/drivers/char/mspec.c ---- linux-2.6.30.4/drivers/char/mspec.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/mspec.c 2009-07-30 09:48:10.006662764 -0400 -@@ -239,7 +239,7 @@ mspec_fault(struct vm_area_struct *vma, - return VM_FAULT_NOPAGE; - } - --static struct vm_operations_struct mspec_vm_ops = { -+static const struct vm_operations_struct mspec_vm_ops = { - .open = mspec_open, - .close = mspec_close, - .fault = mspec_fault, -diff -urNp linux-2.6.30.4/drivers/char/nvram.c linux-2.6.30.4/drivers/char/nvram.c ---- linux-2.6.30.4/drivers/char/nvram.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/nvram.c 2009-07-30 09:48:10.006662764 -0400 -@@ -429,7 +429,10 @@ static const struct file_operations nvra - static struct miscdevice nvram_dev = { - NVRAM_MINOR, - "nvram", -- &nvram_fops -+ &nvram_fops, -+ {NULL, NULL}, -+ NULL, -+ NULL - }; - - static int __init nvram_init(void) -diff -urNp linux-2.6.30.4/drivers/char/random.c linux-2.6.30.4/drivers/char/random.c ---- linux-2.6.30.4/drivers/char/random.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/random.c 2009-07-30 11:10:48.992521357 -0400 -@@ -253,8 +253,13 @@ - /* - * Configuration information - */ -+#ifdef CONFIG_GRKERNSEC_RANDNET -+#define INPUT_POOL_WORDS 512 -+#define OUTPUT_POOL_WORDS 128 -+#else - #define INPUT_POOL_WORDS 128 - #define OUTPUT_POOL_WORDS 32 -+#endif - #define SEC_XFER_SIZE 512 - - /* -@@ -291,10 +296,17 @@ static struct poolinfo { - int poolwords; - int tap1, tap2, tap3, tap4, tap5; - } poolinfo_table[] = { -+#ifdef CONFIG_GRKERNSEC_RANDNET -+ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */ -+ { 512, 411, 308, 208, 104, 1 }, -+ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */ -+ { 128, 103, 76, 51, 25, 1 }, -+#else - /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */ - { 128, 103, 76, 51, 25, 1 }, - /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */ - { 32, 26, 20, 14, 7, 1 }, -+#endif - #if 0 - /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */ - { 2048, 1638, 1231, 819, 411, 1 }, -@@ -1204,7 +1216,7 @@ EXPORT_SYMBOL(generate_random_uuid); - #include - - static int min_read_thresh = 8, min_write_thresh; --static int max_read_thresh = INPUT_POOL_WORDS * 32; -+static int max_read_thresh = OUTPUT_POOL_WORDS * 32; - static int max_write_thresh = INPUT_POOL_WORDS * 32; - static char sysctl_bootid[16]; - -diff -urNp linux-2.6.30.4/drivers/char/tpm/tpm_bios.c linux-2.6.30.4/drivers/char/tpm/tpm_bios.c ---- linux-2.6.30.4/drivers/char/tpm/tpm_bios.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/tpm/tpm_bios.c 2009-07-30 09:48:10.007651841 -0400 -@@ -343,14 +343,14 @@ static int tpm_ascii_bios_measurements_s - return 0; - } - --static struct seq_operations tpm_ascii_b_measurments_seqops = { -+static const struct seq_operations tpm_ascii_b_measurments_seqops = { - .start = tpm_bios_measurements_start, - .next = tpm_bios_measurements_next, - .stop = tpm_bios_measurements_stop, - .show = tpm_ascii_bios_measurements_show, - }; - --static struct seq_operations tpm_binary_b_measurments_seqops = { -+static const struct seq_operations tpm_binary_b_measurments_seqops = { - .start = tpm_bios_measurements_start, - .next = tpm_bios_measurements_next, - .stop = tpm_bios_measurements_stop, -diff -urNp linux-2.6.30.4/drivers/char/tty_ldisc.c linux-2.6.30.4/drivers/char/tty_ldisc.c ---- linux-2.6.30.4/drivers/char/tty_ldisc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/tty_ldisc.c 2009-07-30 09:48:10.008436205 -0400 -@@ -73,7 +73,7 @@ int tty_register_ldisc(int disc, struct - spin_lock_irqsave(&tty_ldisc_lock, flags); - tty_ldiscs[disc] = new_ldisc; - new_ldisc->num = disc; -- new_ldisc->refcount = 0; -+ atomic_set(&new_ldisc->refcount, 0); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - return ret; -@@ -101,7 +101,7 @@ int tty_unregister_ldisc(int disc) - return -EINVAL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- if (tty_ldiscs[disc]->refcount) -+ if (atomic_read(&tty_ldiscs[disc]->refcount)) - ret = -EBUSY; - else - tty_ldiscs[disc] = NULL; -@@ -138,7 +138,7 @@ static int tty_ldisc_try_get(int disc, s - err = -EAGAIN; - else { - /* lock it */ -- ldops->refcount++; -+ atomic_inc(&ldops->refcount); - ld->ops = ldops; - err = 0; - } -@@ -195,8 +195,8 @@ static void tty_ldisc_put(struct tty_ldi - - spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = tty_ldiscs[disc]; -- BUG_ON(ld->refcount == 0); -- ld->refcount--; -+ BUG_ON(atomic_read(&ld->refcount) == 0); -+ atomic_dec(&ld->refcount); - module_put(ld->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - } -@@ -263,7 +263,7 @@ const struct file_operations tty_ldiscs_ - - static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld) - { -- ld->refcount = 0; -+ atomic_set(&ld->refcount, 0); - tty->ldisc = *ld; - } - -@@ -288,7 +288,7 @@ static int tty_ldisc_try(struct tty_stru - spin_lock_irqsave(&tty_ldisc_lock, flags); - ld = &tty->ldisc; - if (test_bit(TTY_LDISC, &tty->flags)) { -- ld->refcount++; -+ atomic_inc(&ld->refcount); - ret = 1; - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); -@@ -315,7 +315,7 @@ struct tty_ldisc *tty_ldisc_ref_wait(str - { - /* wait_event is a macro */ - wait_event(tty_ldisc_wait, tty_ldisc_try(tty)); -- WARN_ON(tty->ldisc.refcount == 0); -+ WARN_ON(atomic_read(&tty->ldisc.refcount) == 0); - return &tty->ldisc; - } - -@@ -358,11 +358,9 @@ void tty_ldisc_deref(struct tty_ldisc *l - BUG_ON(ld == NULL); - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- if (ld->refcount == 0) -+ if (!atomic_add_unless(&ld->refcount, -1, 0)) - printk(KERN_ERR "tty_ldisc_deref: no references.\n"); -- else -- ld->refcount--; -- if (ld->refcount == 0) -+ if (atomic_read(&ld->refcount) == 0) - wake_up(&tty_ldisc_wait); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - } -@@ -506,8 +504,8 @@ restart: - clear_bit(TTY_LDISC, &o_tty->flags); - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- if (tty->ldisc.refcount || (o_tty && o_tty->ldisc.refcount)) { -- if (tty->ldisc.refcount) { -+ if (atomic_read(&tty->ldisc.refcount) || (o_tty && atomic_read(&o_tty->ldisc.refcount))) { -+ if (atomic_read(&tty->ldisc.refcount)) { - /* Free the new ldisc we grabbed. Must drop the lock - first. */ - spin_unlock_irqrestore(&tty_ldisc_lock, flags); -@@ -519,14 +517,14 @@ restart: - * and retries if we made tty_ldisc_wait() smarter. - * That is up for discussion. - */ -- if (wait_event_interruptible(tty_ldisc_wait, tty->ldisc.refcount == 0) < 0) -+ if (wait_event_interruptible(tty_ldisc_wait, atomic_read(&tty->ldisc.refcount) == 0) < 0) - return -ERESTARTSYS; - goto restart; - } -- if (o_tty && o_tty->ldisc.refcount) { -+ if (o_tty && atomic_read(&o_tty->ldisc.refcount)) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - tty_ldisc_put(o_tty->ldisc.ops); -- if (wait_event_interruptible(tty_ldisc_wait, o_tty->ldisc.refcount == 0) < 0) -+ if (wait_event_interruptible(tty_ldisc_wait, atomic_read(&o_tty->ldisc.refcount) == 0) < 0) - return -ERESTARTSYS; - goto restart; - } -@@ -669,9 +667,9 @@ void tty_ldisc_release(struct tty_struct - * side is zero. - */ - spin_lock_irqsave(&tty_ldisc_lock, flags); -- while (tty->ldisc.refcount) { -+ while (atomic_read(&tty->ldisc.refcount)) { - spin_unlock_irqrestore(&tty_ldisc_lock, flags); -- wait_event(tty_ldisc_wait, tty->ldisc.refcount == 0); -+ wait_event(tty_ldisc_wait, atomic_read(&tty->ldisc.refcount) == 0); - spin_lock_irqsave(&tty_ldisc_lock, flags); - } - spin_unlock_irqrestore(&tty_ldisc_lock, flags); -diff -urNp linux-2.6.30.4/drivers/char/vt_ioctl.c linux-2.6.30.4/drivers/char/vt_ioctl.c ---- linux-2.6.30.4/drivers/char/vt_ioctl.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/vt_ioctl.c 2009-07-30 11:10:49.002716445 -0400 -@@ -96,6 +96,12 @@ do_kdsk_ioctl(int cmd, struct kbentry __ - case KDSKBENT: - if (!perm) - return -EPERM; -+ -+#ifdef CONFIG_GRKERNSEC -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ return -EPERM; -+#endif -+ - if (!i && v == K_NOSUCHMAP) { - /* deallocate map */ - key_map = key_maps[s]; -@@ -236,6 +242,13 @@ do_kdgkb_ioctl(int cmd, struct kbsentry - goto reterr; - } - -+#ifdef CONFIG_GRKERNSEC -+ if (!capable(CAP_SYS_TTY_CONFIG)) { -+ ret = -EPERM; -+ goto reterr; -+ } -+#endif -+ - q = func_table[i]; - first_free = funcbufptr + (funcbufsize - funcbufleft); - for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++) -diff -urNp linux-2.6.30.4/drivers/char/xilinx_hwicap/xilinx_hwicap.c linux-2.6.30.4/drivers/char/xilinx_hwicap/xilinx_hwicap.c ---- linux-2.6.30.4/drivers/char/xilinx_hwicap/xilinx_hwicap.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/char/xilinx_hwicap/xilinx_hwicap.c 2009-07-30 09:48:10.008436205 -0400 -@@ -559,7 +559,7 @@ static int hwicap_release(struct inode * - return status; - } - --static struct file_operations hwicap_fops = { -+static const struct file_operations hwicap_fops = { - .owner = THIS_MODULE, - .write = hwicap_write, - .read = hwicap_read, -diff -urNp linux-2.6.30.4/drivers/edac/edac_core.h linux-2.6.30.4/drivers/edac/edac_core.h ---- linux-2.6.30.4/drivers/edac/edac_core.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/edac/edac_core.h 2009-07-30 09:48:10.008436205 -0400 -@@ -98,11 +98,11 @@ extern int edac_debug_level; - - #else /* !CONFIG_EDAC_DEBUG */ - --#define debugf0( ... ) --#define debugf1( ... ) --#define debugf2( ... ) --#define debugf3( ... ) --#define debugf4( ... ) -+#define debugf0( ... ) do {} while (0) -+#define debugf1( ... ) do {} while (0) -+#define debugf2( ... ) do {} while (0) -+#define debugf3( ... ) do {} while (0) -+#define debugf4( ... ) do {} while (0) - - #endif /* !CONFIG_EDAC_DEBUG */ - -diff -urNp linux-2.6.30.4/drivers/firmware/dmi_scan.c linux-2.6.30.4/drivers/firmware/dmi_scan.c ---- linux-2.6.30.4/drivers/firmware/dmi_scan.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/firmware/dmi_scan.c 2009-07-30 09:48:10.009412825 -0400 -@@ -391,11 +391,6 @@ void __init dmi_scan_machine(void) - } - } - else { -- /* -- * no iounmap() for that ioremap(); it would be a no-op, but -- * it's so early in setup that sucker gets confused into doing -- * what it shouldn't if we actually call it. -- */ - p = dmi_ioremap(0xF0000, 0x10000); - if (p == NULL) - goto error; -diff -urNp linux-2.6.30.4/drivers/gpio/gpiolib.c linux-2.6.30.4/drivers/gpio/gpiolib.c ---- linux-2.6.30.4/drivers/gpio/gpiolib.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpio/gpiolib.c 2009-07-30 09:48:10.009412825 -0400 -@@ -1244,7 +1244,7 @@ static int gpiolib_open(struct inode *in - return single_open(file, gpiolib_show, NULL); - } - --static struct file_operations gpiolib_operations = { -+static const struct file_operations gpiolib_operations = { - .open = gpiolib_open, - .read = seq_read, - .llseek = seq_lseek, -diff -urNp linux-2.6.30.4/drivers/gpu/drm/drm_drv.c linux-2.6.30.4/drivers/gpu/drm/drm_drv.c ---- linux-2.6.30.4/drivers/gpu/drm/drm_drv.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpu/drm/drm_drv.c 2009-07-30 09:48:10.010417819 -0400 -@@ -425,7 +425,7 @@ int drm_ioctl(struct inode *inode, struc - char *kdata = NULL; - - atomic_inc(&dev->ioctl_count); -- atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_IOCTLS]); - ++file_priv->ioctl_count; - - DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n", -diff -urNp linux-2.6.30.4/drivers/gpu/drm/drm_fops.c linux-2.6.30.4/drivers/gpu/drm/drm_fops.c ---- linux-2.6.30.4/drivers/gpu/drm/drm_fops.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpu/drm/drm_fops.c 2009-07-30 09:48:10.010417819 -0400 -@@ -130,9 +130,9 @@ int drm_open(struct inode *inode, struct - - retcode = drm_open_helper(inode, filp, dev); - if (!retcode) { -- atomic_inc(&dev->counts[_DRM_STAT_OPENS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_OPENS]); - spin_lock(&dev->count_lock); -- if (!dev->open_count++) { -+ if (atomic_inc_return(&dev->open_count) == 1) { - spin_unlock(&dev->count_lock); - retcode = drm_setup(dev); - goto out; -@@ -433,7 +433,7 @@ int drm_release(struct inode *inode, str - - lock_kernel(); - -- DRM_DEBUG("open_count = %d\n", dev->open_count); -+ DRM_DEBUG("open_count = %d\n", atomic_read(&dev->open_count)); - - if (dev->driver->preclose) - dev->driver->preclose(dev, file_priv); -@@ -445,7 +445,7 @@ int drm_release(struct inode *inode, str - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - task_pid_nr(current), - (long)old_encode_dev(file_priv->minor->device), -- dev->open_count); -+ atomic_read(&dev->open_count)); - - /* if the master has gone away we can't do anything with the lock */ - if (file_priv->minor->master) -@@ -522,9 +522,9 @@ int drm_release(struct inode *inode, str - * End inline drm_release - */ - -- atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_CLOSES]); - spin_lock(&dev->count_lock); -- if (!--dev->open_count) { -+ if (atomic_dec_and_test(&dev->open_count)) { - if (atomic_read(&dev->ioctl_count)) { - DRM_ERROR("Device busy: %d\n", - atomic_read(&dev->ioctl_count)); -diff -urNp linux-2.6.30.4/drivers/gpu/drm/drm_lock.c linux-2.6.30.4/drivers/gpu/drm/drm_lock.c ---- linux-2.6.30.4/drivers/gpu/drm/drm_lock.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpu/drm/drm_lock.c 2009-07-30 09:48:10.010417819 -0400 -@@ -87,7 +87,7 @@ int drm_lock(struct drm_device *dev, voi - if (drm_lock_take(&master->lock, lock->context)) { - master->lock.file_priv = file_priv; - master->lock.lock_time = jiffies; -- atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_LOCKS]); - break; /* Got lock */ - } - -@@ -165,7 +165,7 @@ int drm_unlock(struct drm_device *dev, v - return -EINVAL; - } - -- atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_UNLOCKS]); - - /* kernel_context_switch isn't used by any of the x86 drm - * modules but is required by the Sparc driver. -diff -urNp linux-2.6.30.4/drivers/gpu/drm/drm_vm.c linux-2.6.30.4/drivers/gpu/drm/drm_vm.c ---- linux-2.6.30.4/drivers/gpu/drm/drm_vm.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpu/drm/drm_vm.c 2009-07-30 09:48:10.011410038 -0400 -@@ -369,28 +369,28 @@ static int drm_vm_sg_fault(struct vm_are - } - - /** AGP virtual memory operations */ --static struct vm_operations_struct drm_vm_ops = { -+static const struct vm_operations_struct drm_vm_ops = { - .fault = drm_vm_fault, - .open = drm_vm_open, - .close = drm_vm_close, - }; - - /** Shared virtual memory operations */ --static struct vm_operations_struct drm_vm_shm_ops = { -+static const struct vm_operations_struct drm_vm_shm_ops = { - .fault = drm_vm_shm_fault, - .open = drm_vm_open, - .close = drm_vm_shm_close, - }; - - /** DMA virtual memory operations */ --static struct vm_operations_struct drm_vm_dma_ops = { -+static const struct vm_operations_struct drm_vm_dma_ops = { - .fault = drm_vm_dma_fault, - .open = drm_vm_open, - .close = drm_vm_close, - }; - - /** Scatter-gather virtual memory operations */ --static struct vm_operations_struct drm_vm_sg_ops = { -+static const struct vm_operations_struct drm_vm_sg_ops = { - .fault = drm_vm_sg_fault, - .open = drm_vm_open, - .close = drm_vm_close, -diff -urNp linux-2.6.30.4/drivers/gpu/drm/i810/i810_dma.c linux-2.6.30.4/drivers/gpu/drm/i810/i810_dma.c ---- linux-2.6.30.4/drivers/gpu/drm/i810/i810_dma.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpu/drm/i810/i810_dma.c 2009-07-30 09:48:10.011410038 -0400 -@@ -954,8 +954,8 @@ static int i810_dma_vertex(struct drm_de - dma->buflist[vertex->idx], - vertex->discard, vertex->used); - -- atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); -- atomic_inc(&dev->counts[_DRM_STAT_DMA]); -+ atomic_add_unchecked(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); - sarea_priv->last_enqueue = dev_priv->counter - 1; - sarea_priv->last_dispatch = (int)hw_status[5]; - -@@ -1117,8 +1117,8 @@ static int i810_dma_mc(struct drm_device - i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used, - mc->last_render); - -- atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); -- atomic_inc(&dev->counts[_DRM_STAT_DMA]); -+ atomic_add_unchecked(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); - sarea_priv->last_enqueue = dev_priv->counter - 1; - sarea_priv->last_dispatch = (int)hw_status[5]; - -diff -urNp linux-2.6.30.4/drivers/gpu/drm/i915/i915_drv.c linux-2.6.30.4/drivers/gpu/drm/i915/i915_drv.c ---- linux-2.6.30.4/drivers/gpu/drm/i915/i915_drv.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/gpu/drm/i915/i915_drv.c 2009-07-30 12:07:09.579971370 -0400 -@@ -149,7 +149,7 @@ i915_pci_resume(struct pci_dev *pdev) - return i915_resume(dev); - } - --static struct vm_operations_struct i915_gem_vm_ops = { -+static const struct vm_operations_struct i915_gem_vm_ops = { - .fault = i915_gem_fault, - .open = drm_gem_vm_open, - .close = drm_gem_vm_close, -diff -urNp linux-2.6.30.4/drivers/hwmon/fschmd.c linux-2.6.30.4/drivers/hwmon/fschmd.c ---- linux-2.6.30.4/drivers/hwmon/fschmd.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/fschmd.c 2009-07-30 09:48:10.011410038 -0400 -@@ -915,7 +915,7 @@ static int watchdog_ioctl(struct inode * - return ret; - } - --static struct file_operations watchdog_fops = { -+static const struct file_operations watchdog_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .open = watchdog_open, -diff -urNp linux-2.6.30.4/drivers/hwmon/fscpos.c linux-2.6.30.4/drivers/hwmon/fscpos.c ---- linux-2.6.30.4/drivers/hwmon/fscpos.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/fscpos.c 2009-07-30 09:48:10.015465337 -0400 -@@ -240,7 +240,6 @@ static ssize_t set_pwm(struct i2c_client - unsigned long v = simple_strtoul(buf, NULL, 10); - - /* Range: 0..255 */ -- if (v < 0) v = 0; - if (v > 255) v = 255; - - mutex_lock(&data->update_lock); -diff -urNp linux-2.6.30.4/drivers/hwmon/k8temp.c linux-2.6.30.4/drivers/hwmon/k8temp.c ---- linux-2.6.30.4/drivers/hwmon/k8temp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/k8temp.c 2009-07-30 09:48:10.016410845 -0400 -@@ -138,7 +138,7 @@ static DEVICE_ATTR(name, S_IRUGO, show_n - - static struct pci_device_id k8temp_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) }, -- { 0 }, -+ { 0, 0, 0, 0, 0, 0, 0 }, - }; - - MODULE_DEVICE_TABLE(pci, k8temp_ids); -diff -urNp linux-2.6.30.4/drivers/hwmon/sis5595.c linux-2.6.30.4/drivers/hwmon/sis5595.c ---- linux-2.6.30.4/drivers/hwmon/sis5595.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/sis5595.c 2009-07-30 09:48:10.016410845 -0400 -@@ -699,7 +699,7 @@ static struct sis5595_data *sis5595_upda - - static struct pci_device_id sis5595_pci_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); -diff -urNp linux-2.6.30.4/drivers/hwmon/via686a.c linux-2.6.30.4/drivers/hwmon/via686a.c ---- linux-2.6.30.4/drivers/hwmon/via686a.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/via686a.c 2009-07-30 09:48:10.016410845 -0400 -@@ -769,7 +769,7 @@ static struct via686a_data *via686a_upda - - static struct pci_device_id via686a_pci_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, via686a_pci_ids); -diff -urNp linux-2.6.30.4/drivers/hwmon/vt8231.c linux-2.6.30.4/drivers/hwmon/vt8231.c ---- linux-2.6.30.4/drivers/hwmon/vt8231.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/vt8231.c 2009-07-30 09:48:10.017409539 -0400 -@@ -699,7 +699,7 @@ static struct platform_driver vt8231_dri - - static struct pci_device_id vt8231_pci_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, vt8231_pci_ids); -diff -urNp linux-2.6.30.4/drivers/hwmon/w83791d.c linux-2.6.30.4/drivers/hwmon/w83791d.c ---- linux-2.6.30.4/drivers/hwmon/w83791d.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/hwmon/w83791d.c 2009-07-30 09:48:10.017409539 -0400 -@@ -330,8 +330,8 @@ static int w83791d_detect(struct i2c_cli - struct i2c_board_info *info); - static int w83791d_remove(struct i2c_client *client); - --static int w83791d_read(struct i2c_client *client, u8 register); --static int w83791d_write(struct i2c_client *client, u8 register, u8 value); -+static int w83791d_read(struct i2c_client *client, u8 reg); -+static int w83791d_write(struct i2c_client *client, u8 reg, u8 value); - static struct w83791d_data *w83791d_update_device(struct device *dev); - - #ifdef DEBUG -diff -urNp linux-2.6.30.4/drivers/i2c/busses/i2c-i801.c linux-2.6.30.4/drivers/i2c/busses/i2c-i801.c ---- linux-2.6.30.4/drivers/i2c/busses/i2c-i801.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/i2c/busses/i2c-i801.c 2009-07-30 09:48:10.018424106 -0400 -@@ -578,7 +578,7 @@ static struct pci_device_id i801_ids[] = - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_4) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_5) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PCH_SMBUS) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, i801_ids); -diff -urNp linux-2.6.30.4/drivers/i2c/busses/i2c-piix4.c linux-2.6.30.4/drivers/i2c/busses/i2c-piix4.c ---- linux-2.6.30.4/drivers/i2c/busses/i2c-piix4.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/i2c/busses/i2c-piix4.c 2009-07-30 09:48:10.018424106 -0400 -@@ -123,7 +123,7 @@ static struct dmi_system_id __devinitdat - .ident = "IBM", - .matches = { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), }, - }, -- { }, -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, NULL)}, NULL }, - }; - - static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, -@@ -489,7 +489,7 @@ static struct pci_device_id piix4_ids[] - PCI_DEVICE_ID_SERVERWORKS_HT1000SB) }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_HT1100LD) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, piix4_ids); -diff -urNp linux-2.6.30.4/drivers/i2c/busses/i2c-sis630.c linux-2.6.30.4/drivers/i2c/busses/i2c-sis630.c ---- linux-2.6.30.4/drivers/i2c/busses/i2c-sis630.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/i2c/busses/i2c-sis630.c 2009-07-30 09:48:10.018424106 -0400 -@@ -471,7 +471,7 @@ static struct i2c_adapter sis630_adapter - static struct pci_device_id sis630_ids[] __devinitdata = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, sis630_ids); -diff -urNp linux-2.6.30.4/drivers/i2c/busses/i2c-sis96x.c linux-2.6.30.4/drivers/i2c/busses/i2c-sis96x.c ---- linux-2.6.30.4/drivers/i2c/busses/i2c-sis96x.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/i2c/busses/i2c-sis96x.c 2009-07-30 09:48:10.018424106 -0400 -@@ -247,7 +247,7 @@ static struct i2c_adapter sis96x_adapter - - static struct pci_device_id sis96x_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_SMBUS) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, sis96x_ids); -diff -urNp linux-2.6.30.4/drivers/ieee1394/dma.c linux-2.6.30.4/drivers/ieee1394/dma.c ---- linux-2.6.30.4/drivers/ieee1394/dma.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/dma.c 2009-07-30 09:48:10.018424106 -0400 -@@ -247,7 +247,7 @@ static int dma_region_pagefault(struct v - return 0; - } - --static struct vm_operations_struct dma_region_vm_ops = { -+static const struct vm_operations_struct dma_region_vm_ops = { - .fault = dma_region_pagefault, - }; - -diff -urNp linux-2.6.30.4/drivers/ieee1394/dv1394.c linux-2.6.30.4/drivers/ieee1394/dv1394.c ---- linux-2.6.30.4/drivers/ieee1394/dv1394.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/dv1394.c 2009-07-30 09:48:10.020336753 -0400 -@@ -739,7 +739,7 @@ static void frame_prepare(struct video_c - based upon DIF section and sequence - */ - --static void inline -+static inline void - frame_put_packet (struct frame *f, struct packet *p) - { - int section_type = p->data[0] >> 5; /* section type is in bits 5 - 7 */ -@@ -2177,7 +2177,7 @@ static const struct ieee1394_device_id d - .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = AVC_SW_VERSION_ENTRY & 0xffffff - }, -- { } -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, dv1394_id_table); -diff -urNp linux-2.6.30.4/drivers/ieee1394/eth1394.c linux-2.6.30.4/drivers/ieee1394/eth1394.c ---- linux-2.6.30.4/drivers/ieee1394/eth1394.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/eth1394.c 2009-07-30 09:48:10.020336753 -0400 -@@ -445,7 +445,7 @@ static const struct ieee1394_device_id e - .specifier_id = ETHER1394_GASP_SPECIFIER_ID, - .version = ETHER1394_GASP_VERSION, - }, -- {} -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, eth1394_id_table); -diff -urNp linux-2.6.30.4/drivers/ieee1394/hosts.c linux-2.6.30.4/drivers/ieee1394/hosts.c ---- linux-2.6.30.4/drivers/ieee1394/hosts.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/hosts.c 2009-07-30 09:48:10.020336753 -0400 -@@ -78,6 +78,7 @@ static int dummy_isoctl(struct hpsb_iso - } - - static struct hpsb_host_driver dummy_driver = { -+ .name = "dummy", - .transmit_packet = dummy_transmit_packet, - .devctl = dummy_devctl, - .isoctl = dummy_isoctl -diff -urNp linux-2.6.30.4/drivers/ieee1394/ohci1394.c linux-2.6.30.4/drivers/ieee1394/ohci1394.c ---- linux-2.6.30.4/drivers/ieee1394/ohci1394.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/ohci1394.c 2009-07-30 09:48:10.020862787 -0400 -@@ -147,9 +147,9 @@ printk(level "%s: " fmt "\n" , OHCI1394_ - printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args) - - /* Module Parameters */ --static int phys_dma = 1; -+static int phys_dma; - module_param(phys_dma, int, 0444); --MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 1)."); -+MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 0)."); - - static void dma_trm_tasklet(unsigned long data); - static void dma_trm_reset(struct dma_trm_ctx *d); -@@ -3449,7 +3449,7 @@ static struct pci_device_id ohci1394_pci - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - }, -- { 0, }, -+ { 0, 0, 0, 0, 0, 0, 0 }, - }; - - MODULE_DEVICE_TABLE(pci, ohci1394_pci_tbl); -diff -urNp linux-2.6.30.4/drivers/ieee1394/raw1394.c linux-2.6.30.4/drivers/ieee1394/raw1394.c ---- linux-2.6.30.4/drivers/ieee1394/raw1394.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/raw1394.c 2009-07-30 09:48:10.022270946 -0400 -@@ -2999,7 +2999,7 @@ static const struct ieee1394_device_id r - .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, - .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff}, -- {} -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table); -diff -urNp linux-2.6.30.4/drivers/ieee1394/sbp2.c linux-2.6.30.4/drivers/ieee1394/sbp2.c ---- linux-2.6.30.4/drivers/ieee1394/sbp2.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/sbp2.c 2009-07-30 09:48:10.022270946 -0400 -@@ -290,7 +290,7 @@ static const struct ieee1394_device_id s - .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, - .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = SBP2_SW_VERSION_ENTRY & 0xffffff}, -- {} -+ { 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table); - -@@ -2111,7 +2111,7 @@ MODULE_DESCRIPTION("IEEE-1394 SBP-2 prot - MODULE_SUPPORTED_DEVICE(SBP2_DEVICE_NAME); - MODULE_LICENSE("GPL"); - --static int sbp2_module_init(void) -+static int __init sbp2_module_init(void) - { - int ret; - -diff -urNp linux-2.6.30.4/drivers/ieee1394/video1394.c linux-2.6.30.4/drivers/ieee1394/video1394.c ---- linux-2.6.30.4/drivers/ieee1394/video1394.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/ieee1394/video1394.c 2009-07-30 09:48:10.022535006 -0400 -@@ -1310,7 +1310,7 @@ static const struct ieee1394_device_id v - .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff - }, -- { } -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, video1394_id_table); -diff -urNp linux-2.6.30.4/drivers/infiniband/hw/ehca/ehca_uverbs.c linux-2.6.30.4/drivers/infiniband/hw/ehca/ehca_uverbs.c ---- linux-2.6.30.4/drivers/infiniband/hw/ehca/ehca_uverbs.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/infiniband/hw/ehca/ehca_uverbs.c 2009-07-30 09:48:10.023536535 -0400 -@@ -95,7 +95,7 @@ static void ehca_mm_close(struct vm_area - vma->vm_start, vma->vm_end, *count); - } - --static struct vm_operations_struct vm_ops = { -+static const struct vm_operations_struct vm_ops = { - .open = ehca_mm_open, - .close = ehca_mm_close, - }; -diff -urNp linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_file_ops.c linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_file_ops.c ---- linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_file_ops.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_file_ops.c 2009-07-30 09:48:10.023536535 -0400 -@@ -1151,7 +1151,7 @@ static int ipath_file_vma_fault(struct v - return 0; - } - --static struct vm_operations_struct ipath_file_vm_ops = { -+static const struct vm_operations_struct ipath_file_vm_ops = { - .fault = ipath_file_vma_fault, - }; - -diff -urNp linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_mmap.c linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_mmap.c ---- linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_mmap.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/infiniband/hw/ipath/ipath_mmap.c 2009-07-30 09:48:10.024683962 -0400 -@@ -74,7 +74,7 @@ static void ipath_vma_close(struct vm_ar - kref_put(&ip->ref, ipath_release_mmap_info); - } - --static struct vm_operations_struct ipath_vm_ops = { -+static const struct vm_operations_struct ipath_vm_ops = { - .open = ipath_vma_open, - .close = ipath_vma_close, - }; -diff -urNp linux-2.6.30.4/drivers/input/keyboard/atkbd.c linux-2.6.30.4/drivers/input/keyboard/atkbd.c ---- linux-2.6.30.4/drivers/input/keyboard/atkbd.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/keyboard/atkbd.c 2009-07-30 09:48:10.024683962 -0400 -@@ -1166,7 +1166,7 @@ static struct serio_device_id atkbd_seri - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, -- { 0 } -+ { 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); -diff -urNp linux-2.6.30.4/drivers/input/mouse/lifebook.c linux-2.6.30.4/drivers/input/mouse/lifebook.c ---- linux-2.6.30.4/drivers/input/mouse/lifebook.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/mouse/lifebook.c 2009-07-30 09:48:10.025535593 -0400 -@@ -116,7 +116,7 @@ static const struct dmi_system_id lifebo - DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse) -diff -urNp linux-2.6.30.4/drivers/input/mouse/psmouse-base.c linux-2.6.30.4/drivers/input/mouse/psmouse-base.c ---- linux-2.6.30.4/drivers/input/mouse/psmouse-base.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/mouse/psmouse-base.c 2009-07-30 09:48:10.025535593 -0400 -@@ -1378,7 +1378,7 @@ static struct serio_device_id psmouse_se - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, -- { 0 } -+ { 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(serio, psmouse_serio_ids); -diff -urNp linux-2.6.30.4/drivers/input/mouse/synaptics.c linux-2.6.30.4/drivers/input/mouse/synaptics.c ---- linux-2.6.30.4/drivers/input/mouse/synaptics.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/mouse/synaptics.c 2009-07-30 09:48:10.026633372 -0400 -@@ -412,7 +412,7 @@ static void synaptics_process_packet(str - break; - case 2: - if (SYN_MODEL_PEN(priv->model_id)) -- ; /* Nothing, treat a pen as a single finger */ -+ break; /* Nothing, treat a pen as a single finger */ - break; - case 4 ... 15: - if (SYN_CAP_PALMDETECT(priv->capabilities)) -@@ -625,7 +625,7 @@ static const struct dmi_system_id toshib - DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -diff -urNp linux-2.6.30.4/drivers/input/mousedev.c linux-2.6.30.4/drivers/input/mousedev.c ---- linux-2.6.30.4/drivers/input/mousedev.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/mousedev.c 2009-07-30 09:48:10.026633372 -0400 -@@ -1059,7 +1059,7 @@ static struct input_handler mousedev_han - - #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX - static struct miscdevice psaux_mouse = { -- PSMOUSE_MINOR, "psaux", &mousedev_fops -+ PSMOUSE_MINOR, "psaux", &mousedev_fops, {NULL, NULL}, NULL, NULL - }; - static int psaux_registered; - #endif -diff -urNp linux-2.6.30.4/drivers/input/serio/i8042-x86ia64io.h linux-2.6.30.4/drivers/input/serio/i8042-x86ia64io.h ---- linux-2.6.30.4/drivers/input/serio/i8042-x86ia64io.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/serio/i8042-x86ia64io.h 2009-07-30 09:48:10.027427071 -0400 -@@ -159,7 +159,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - /* -@@ -374,7 +374,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - static struct dmi_system_id __initdata i8042_dmi_reset_table[] = { -@@ -392,7 +392,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - #ifdef CONFIG_PNP -@@ -411,7 +411,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -@@ -478,7 +478,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - #endif /* CONFIG_X86 */ -diff -urNp linux-2.6.30.4/drivers/input/serio/serio_raw.c linux-2.6.30.4/drivers/input/serio/serio_raw.c ---- linux-2.6.30.4/drivers/input/serio/serio_raw.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/input/serio/serio_raw.c 2009-07-30 09:48:10.027427071 -0400 -@@ -376,7 +376,7 @@ static struct serio_device_id serio_raw_ - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, -- { 0 } -+ { 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids); -diff -urNp linux-2.6.30.4/drivers/isdn/capi/kcapi_proc.c linux-2.6.30.4/drivers/isdn/capi/kcapi_proc.c ---- linux-2.6.30.4/drivers/isdn/capi/kcapi_proc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/isdn/capi/kcapi_proc.c 2009-07-30 09:48:10.027427071 -0400 -@@ -89,14 +89,14 @@ static int contrstats_show(struct seq_fi - return 0; - } - --static struct seq_operations seq_controller_ops = { -+static const struct seq_operations seq_controller_ops = { - .start = controller_start, - .next = controller_next, - .stop = controller_stop, - .show = controller_show, - }; - --static struct seq_operations seq_contrstats_ops = { -+static const struct seq_operations seq_contrstats_ops = { - .start = controller_start, - .next = controller_next, - .stop = controller_stop, -@@ -194,14 +194,14 @@ applstats_show(struct seq_file *seq, voi - return 0; - } - --static struct seq_operations seq_applications_ops = { -+static const struct seq_operations seq_applications_ops = { - .start = applications_start, - .next = applications_next, - .stop = applications_stop, - .show = applications_show, - }; - --static struct seq_operations seq_applstats_ops = { -+static const struct seq_operations seq_applstats_ops = { - .start = applications_start, - .next = applications_next, - .stop = applications_stop, -@@ -264,7 +264,7 @@ static int capi_driver_show(struct seq_f - return 0; - } - --static struct seq_operations seq_capi_driver_ops = { -+static const struct seq_operations seq_capi_driver_ops = { - .start = capi_driver_start, - .next = capi_driver_next, - .stop = capi_driver_stop, -diff -urNp linux-2.6.30.4/drivers/isdn/mISDN/timerdev.c linux-2.6.30.4/drivers/isdn/mISDN/timerdev.c ---- linux-2.6.30.4/drivers/isdn/mISDN/timerdev.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/isdn/mISDN/timerdev.c 2009-07-30 09:48:10.028469662 -0400 -@@ -259,7 +259,7 @@ mISDN_ioctl(struct inode *inode, struct - return ret; - } - --static struct file_operations mISDN_fops = { -+static const struct file_operations mISDN_fops = { - .read = mISDN_read, - .poll = mISDN_poll, - .ioctl = mISDN_ioctl, -diff -urNp linux-2.6.30.4/drivers/lguest/core.c linux-2.6.30.4/drivers/lguest/core.c ---- linux-2.6.30.4/drivers/lguest/core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/lguest/core.c 2009-07-30 09:48:10.028469662 -0400 -@@ -80,9 +80,17 @@ static __init int map_switcher(void) - * (SWITCHER_ADDR). We might not get it in theory, but in practice - * it's worked so far. The end address needs +1 because __get_vm_area - * allocates an extra guard page, so we need space for that. */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, -+ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR -+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#else - switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, - VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR - + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#endif -+ - if (!switcher_vma) { - err = -ENOMEM; - printk("lguest: could not map switcher pages high\n"); -diff -urNp linux-2.6.30.4/drivers/lguest/lguest_user.c linux-2.6.30.4/drivers/lguest/lguest_user.c ---- linux-2.6.30.4/drivers/lguest/lguest_user.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/lguest/lguest_user.c 2009-07-30 09:48:10.028469662 -0400 -@@ -329,7 +329,7 @@ static int close(struct inode *inode, st - * We begin our understanding with the Host kernel interface which the Launcher - * uses: reading and writing a character device called /dev/lguest. All the - * work happens in the read(), write() and close() routines: */ --static struct file_operations lguest_fops = { -+static const struct file_operations lguest_fops = { - .owner = THIS_MODULE, - .release = close, - .write = write, -diff -urNp linux-2.6.30.4/drivers/md/bitmap.c linux-2.6.30.4/drivers/md/bitmap.c ---- linux-2.6.30.4/drivers/md/bitmap.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/md/bitmap.c 2009-07-30 09:48:10.029590223 -0400 -@@ -58,7 +58,7 @@ - # if DEBUG > 0 - # define PRINTK(x...) printk(KERN_DEBUG x) - # else --# define PRINTK(x...) -+# define PRINTK(x...) do {} while (0) - # endif - #endif - -diff -urNp linux-2.6.30.4/drivers/md/md.c linux-2.6.30.4/drivers/md/md.c ---- linux-2.6.30.4/drivers/md/md.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/md/md.c 2009-07-30 09:48:10.031075937 -0400 -@@ -5973,7 +5973,7 @@ static int md_seq_show(struct seq_file * - chunk_kb ? "KB" : "B"); - if (bitmap->file) { - seq_printf(seq, ", file: "); -- seq_path(seq, &bitmap->file->f_path, " \t\n"); -+ seq_path(seq, &bitmap->file->f_path, " \t\n\\"); - } - - seq_printf(seq, "\n"); -diff -urNp linux-2.6.30.4/drivers/md/md.h linux-2.6.30.4/drivers/md/md.h ---- linux-2.6.30.4/drivers/md/md.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/md/md.h 2009-07-30 09:48:10.031075937 -0400 -@@ -299,7 +299,7 @@ static inline void rdev_dec_pending(mdk_ - - static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors) - { -- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); -+ atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); - } - - struct mdk_personality -diff -urNp linux-2.6.30.4/drivers/media/dvb/dvb-core/dmxdev.c linux-2.6.30.4/drivers/media/dvb/dvb-core/dmxdev.c ---- linux-2.6.30.4/drivers/media/dvb/dvb-core/dmxdev.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/dvb/dvb-core/dmxdev.c 2009-07-30 12:06:52.108842402 -0400 -@@ -1092,7 +1092,7 @@ static unsigned int dvb_dvr_poll(struct - return mask; - } - --static struct file_operations dvb_dvr_fops = { -+static const struct file_operations dvb_dvr_fops = { - .owner = THIS_MODULE, - .read = dvb_dvr_read, - .write = dvb_dvr_write, -diff -urNp linux-2.6.30.4/drivers/media/dvb/firewire/firedtv-ci.c linux-2.6.30.4/drivers/media/dvb/firewire/firedtv-ci.c ---- linux-2.6.30.4/drivers/media/dvb/firewire/firedtv-ci.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/dvb/firewire/firedtv-ci.c 2009-07-30 12:06:52.110732547 -0400 -@@ -215,7 +215,7 @@ static unsigned int fdtv_ca_io_poll(stru - return POLLIN; - } - --static struct file_operations fdtv_ca_fops = { -+static const struct file_operations fdtv_ca_fops = { - .owner = THIS_MODULE, - .ioctl = dvb_generic_ioctl, - .open = dvb_generic_open, -diff -urNp linux-2.6.30.4/drivers/media/video/cafe_ccic.c linux-2.6.30.4/drivers/media/video/cafe_ccic.c ---- linux-2.6.30.4/drivers/media/video/cafe_ccic.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/cafe_ccic.c 2009-07-30 09:48:10.031530096 -0400 -@@ -1326,7 +1326,7 @@ static void cafe_v4l_vm_close(struct vm_ - mutex_unlock(&sbuf->cam->s_mutex); - } - --static struct vm_operations_struct cafe_v4l_vm_ops = { -+static const struct vm_operations_struct cafe_v4l_vm_ops = { - .open = cafe_v4l_vm_open, - .close = cafe_v4l_vm_close - }; -diff -urNp linux-2.6.30.4/drivers/media/video/et61x251/et61x251_core.c linux-2.6.30.4/drivers/media/video/et61x251/et61x251_core.c ---- linux-2.6.30.4/drivers/media/video/et61x251/et61x251_core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/et61x251/et61x251_core.c 2009-07-30 09:48:10.031530096 -0400 -@@ -1494,7 +1494,7 @@ static void et61x251_vm_close(struct vm_ - } - - --static struct vm_operations_struct et61x251_vm_ops = { -+static const struct vm_operations_struct et61x251_vm_ops = { - .open = et61x251_vm_open, - .close = et61x251_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/gspca/gspca.c linux-2.6.30.4/drivers/media/video/gspca/gspca.c ---- linux-2.6.30.4/drivers/media/video/gspca/gspca.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/gspca/gspca.c 2009-07-30 09:48:10.032627590 -0400 -@@ -99,7 +99,7 @@ static void gspca_vm_close(struct vm_are - frame->v4l2_buf.flags &= ~V4L2_BUF_FLAG_MAPPED; - } - --static struct vm_operations_struct gspca_vm_ops = { -+static const struct vm_operations_struct gspca_vm_ops = { - .open = gspca_vm_open, - .close = gspca_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/meye.c linux-2.6.30.4/drivers/media/video/meye.c ---- linux-2.6.30.4/drivers/media/video/meye.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/meye.c 2009-07-30 09:48:10.032627590 -0400 -@@ -1589,7 +1589,7 @@ static void meye_vm_close(struct vm_area - meye.vma_use_count[idx]--; - } - --static struct vm_operations_struct meye_vm_ops = { -+static const struct vm_operations_struct meye_vm_ops = { - .open = meye_vm_open, - .close = meye_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/sn9c102/sn9c102_core.c linux-2.6.30.4/drivers/media/video/sn9c102/sn9c102_core.c ---- linux-2.6.30.4/drivers/media/video/sn9c102/sn9c102_core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/sn9c102/sn9c102_core.c 2009-07-30 09:48:10.033630131 -0400 -@@ -2075,7 +2075,7 @@ static void sn9c102_vm_close(struct vm_a - } - - --static struct vm_operations_struct sn9c102_vm_ops = { -+static const struct vm_operations_struct sn9c102_vm_ops = { - .open = sn9c102_vm_open, - .close = sn9c102_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/stk-webcam.c linux-2.6.30.4/drivers/media/video/stk-webcam.c ---- linux-2.6.30.4/drivers/media/video/stk-webcam.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/stk-webcam.c 2009-07-30 09:48:10.033630131 -0400 -@@ -789,7 +789,7 @@ static void stk_v4l_vm_close(struct vm_a - if (sbuf->mapcount == 0) - sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_MAPPED; - } --static struct vm_operations_struct stk_v4l_vm_ops = { -+static const struct vm_operations_struct stk_v4l_vm_ops = { - .open = stk_v4l_vm_open, - .close = stk_v4l_vm_close - }; -diff -urNp linux-2.6.30.4/drivers/media/video/usbvideo/konicawc.c linux-2.6.30.4/drivers/media/video/usbvideo/konicawc.c ---- linux-2.6.30.4/drivers/media/video/usbvideo/konicawc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/usbvideo/konicawc.c 2009-08-09 07:48:48.178565450 -0400 -@@ -225,7 +225,7 @@ static void konicawc_register_input(stru - int error; - - usb_make_path(dev, cam->input_physname, sizeof(cam->input_physname)); -- strncat(cam->input_physname, "/input0", sizeof(cam->input_physname)); -+ strlcat(cam->input_physname, "/input0", sizeof(cam->input_physname)); - - cam->input = input_dev = input_allocate_device(); - if (!input_dev) { -diff -urNp linux-2.6.30.4/drivers/media/video/usbvideo/quickcam_messenger.c linux-2.6.30.4/drivers/media/video/usbvideo/quickcam_messenger.c ---- linux-2.6.30.4/drivers/media/video/usbvideo/quickcam_messenger.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/usbvideo/quickcam_messenger.c 2009-08-09 07:48:48.199403940 -0400 -@@ -89,7 +89,7 @@ static void qcm_register_input(struct qc - int error; - - usb_make_path(dev, cam->input_physname, sizeof(cam->input_physname)); -- strncat(cam->input_physname, "/input0", sizeof(cam->input_physname)); -+ strlcat(cam->input_physname, "/input0", sizeof(cam->input_physname)); - - cam->input = input_dev = input_allocate_device(); - if (!input_dev) { -diff -urNp linux-2.6.30.4/drivers/media/video/uvc/uvc_v4l2.c linux-2.6.30.4/drivers/media/video/uvc/uvc_v4l2.c ---- linux-2.6.30.4/drivers/media/video/uvc/uvc_v4l2.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/uvc/uvc_v4l2.c 2009-07-30 09:48:10.034661447 -0400 -@@ -1036,7 +1036,7 @@ static void uvc_vm_close(struct vm_area_ - buffer->vma_use_count--; - } - --static struct vm_operations_struct uvc_vm_ops = { -+static const struct vm_operations_struct uvc_vm_ops = { - .open = uvc_vm_open, - .close = uvc_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/videobuf-dma-contig.c linux-2.6.30.4/drivers/media/video/videobuf-dma-contig.c ---- linux-2.6.30.4/drivers/media/video/videobuf-dma-contig.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/videobuf-dma-contig.c 2009-07-30 09:48:10.034661447 -0400 -@@ -103,7 +103,7 @@ static void videobuf_vm_close(struct vm_ - } - } - --static struct vm_operations_struct videobuf_vm_ops = { -+static const struct vm_operations_struct videobuf_vm_ops = { - .open = videobuf_vm_open, - .close = videobuf_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/vino.c linux-2.6.30.4/drivers/media/video/vino.c ---- linux-2.6.30.4/drivers/media/video/vino.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/vino.c 2009-07-30 09:48:10.035537043 -0400 -@@ -3858,7 +3858,7 @@ static void vino_vm_close(struct vm_area - dprintk("vino_vm_close(): count = %d\n", fb->map_count); - } - --static struct vm_operations_struct vino_vm_ops = { -+static const struct vm_operations_struct vino_vm_ops = { - .open = vino_vm_open, - .close = vino_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/zc0301/zc0301_core.c linux-2.6.30.4/drivers/media/video/zc0301/zc0301_core.c ---- linux-2.6.30.4/drivers/media/video/zc0301/zc0301_core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/zc0301/zc0301_core.c 2009-07-30 09:48:10.036598829 -0400 -@@ -933,7 +933,7 @@ static void zc0301_vm_close(struct vm_ar - } - - --static struct vm_operations_struct zc0301_vm_ops = { -+static const struct vm_operations_struct zc0301_vm_ops = { - .open = zc0301_vm_open, - .close = zc0301_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/media/video/zoran/zoran_driver.c linux-2.6.30.4/drivers/media/video/zoran/zoran_driver.c ---- linux-2.6.30.4/drivers/media/video/zoran/zoran_driver.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/media/video/zoran/zoran_driver.c 2009-07-30 12:07:09.597971485 -0400 -@@ -3177,7 +3177,7 @@ zoran_vm_close (struct vm_area_struct *v - mutex_unlock(&zr->resource_lock); - } - --static struct vm_operations_struct zoran_vm_ops = { -+static const struct vm_operations_struct zoran_vm_ops = { - .open = zoran_vm_open, - .close = zoran_vm_close, - }; -diff -urNp linux-2.6.30.4/drivers/message/i2o/i2o_proc.c linux-2.6.30.4/drivers/message/i2o/i2o_proc.c ---- linux-2.6.30.4/drivers/message/i2o/i2o_proc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/message/i2o/i2o_proc.c 2009-08-09 07:48:48.246416282 -0400 -@@ -259,13 +259,6 @@ static char *scsi_devices[] = { - "Array Controller Device" - }; - --static char *chtostr(u8 * chars, int n) --{ -- char tmp[256]; -- tmp[0] = 0; -- return strncat(tmp, (char *)chars, n); --} -- - static int i2o_report_query_status(struct seq_file *seq, int block_status, - char *group) - { -@@ -842,8 +835,7 @@ static int i2o_seq_show_ddm_table(struct - - seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id); - seq_printf(seq, "%-#8x", ddm_table.module_id); -- seq_printf(seq, "%-29s", -- chtostr(ddm_table.module_name_version, 28)); -+ seq_printf(seq, "%-.28s", ddm_table.module_name_version); - seq_printf(seq, "%9d ", ddm_table.data_size); - seq_printf(seq, "%8d", ddm_table.code_size); - -@@ -944,8 +936,8 @@ static int i2o_seq_show_drivers_stored(s - - seq_printf(seq, "%-#7x", dst->i2o_vendor_id); - seq_printf(seq, "%-#8x", dst->module_id); -- seq_printf(seq, "%-29s", chtostr(dst->module_name_version, 28)); -- seq_printf(seq, "%-9s", chtostr(dst->date, 8)); -+ seq_printf(seq, "%-.28s", dst->module_name_version); -+ seq_printf(seq, "%-.8s", dst->date); - seq_printf(seq, "%8d ", dst->module_size); - seq_printf(seq, "%8d ", dst->mpb_size); - seq_printf(seq, "0x%04x", dst->module_flags); -@@ -1276,14 +1268,10 @@ static int i2o_seq_show_dev_identity(str - seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0])); - seq_printf(seq, "Owner TID : %0#5x\n", work16[2]); - seq_printf(seq, "Parent TID : %0#5x\n", work16[3]); -- seq_printf(seq, "Vendor info : %s\n", -- chtostr((u8 *) (work32 + 2), 16)); -- seq_printf(seq, "Product info : %s\n", -- chtostr((u8 *) (work32 + 6), 16)); -- seq_printf(seq, "Description : %s\n", -- chtostr((u8 *) (work32 + 10), 16)); -- seq_printf(seq, "Product rev. : %s\n", -- chtostr((u8 *) (work32 + 14), 8)); -+ seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2)); -+ seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6)); -+ seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10)); -+ seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14)); - - seq_printf(seq, "Serial number : "); - print_serial_number(seq, (u8 *) (work32 + 16), -@@ -1328,10 +1316,8 @@ static int i2o_seq_show_ddm_identity(str - } - - seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid); -- seq_printf(seq, "Module name : %s\n", -- chtostr(result.module_name, 24)); -- seq_printf(seq, "Module revision : %s\n", -- chtostr(result.module_rev, 8)); -+ seq_printf(seq, "Module name : %.24s\n", result.module_name); -+ seq_printf(seq, "Module revision : %.8s\n", result.module_rev); - - seq_printf(seq, "Serial number : "); - print_serial_number(seq, result.serial_number, sizeof(result) - 36); -@@ -1362,14 +1348,10 @@ static int i2o_seq_show_uinfo(struct seq - return 0; - } - -- seq_printf(seq, "Device name : %s\n", -- chtostr(result.device_name, 64)); -- seq_printf(seq, "Service name : %s\n", -- chtostr(result.service_name, 64)); -- seq_printf(seq, "Physical name : %s\n", -- chtostr(result.physical_location, 64)); -- seq_printf(seq, "Instance number : %s\n", -- chtostr(result.instance_number, 4)); -+ seq_printf(seq, "Device name : %.64s\n", result.device_name); -+ seq_printf(seq, "Service name : %.64s\n", result.service_name); -+ seq_printf(seq, "Physical name : %.64s\n", result.physical_location); -+ seq_printf(seq, "Instance number : %.4s\n", result.instance_number); - - return 0; - } -diff -urNp linux-2.6.30.4/drivers/misc/ibmasm/ibmasmfs.c linux-2.6.30.4/drivers/misc/ibmasm/ibmasmfs.c ---- linux-2.6.30.4/drivers/misc/ibmasm/ibmasmfs.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/misc/ibmasm/ibmasmfs.c 2009-07-30 09:48:10.036598829 -0400 -@@ -97,7 +97,7 @@ static int ibmasmfs_get_super(struct fil - return get_sb_single(fst, flags, data, ibmasmfs_fill_super, mnt); - } - --static struct super_operations ibmasmfs_s_ops = { -+static const struct super_operations ibmasmfs_s_ops = { - .statfs = simple_statfs, - .drop_inode = generic_delete_inode, - }; -diff -urNp linux-2.6.30.4/drivers/misc/phantom.c linux-2.6.30.4/drivers/misc/phantom.c ---- linux-2.6.30.4/drivers/misc/phantom.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/misc/phantom.c 2009-07-30 09:48:10.037448258 -0400 -@@ -271,7 +271,7 @@ static unsigned int phantom_poll(struct - return mask; - } - --static struct file_operations phantom_file_ops = { -+static const struct file_operations phantom_file_ops = { - .open = phantom_open, - .release = phantom_release, - .unlocked_ioctl = phantom_ioctl, -diff -urNp linux-2.6.30.4/drivers/misc/sgi-gru/grufile.c linux-2.6.30.4/drivers/misc/sgi-gru/grufile.c ---- linux-2.6.30.4/drivers/misc/sgi-gru/grufile.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/misc/sgi-gru/grufile.c 2009-07-30 17:46:03.273720317 -0400 -@@ -53,7 +53,7 @@ struct gru_stats_s gru_stats; - /* Guaranteed user available resources on each node */ - static int max_user_cbrs, max_user_dsr_bytes; - --static struct file_operations gru_fops; -+static const struct file_operations gru_fops; - static struct miscdevice gru_miscdev; - - -@@ -460,7 +460,7 @@ static void __exit gru_exit(void) - gru_proc_exit(); - } - --static struct file_operations gru_fops = { -+static const struct file_operations gru_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = gru_file_unlocked_ioctl, - .mmap = gru_file_mmap, -@@ -472,7 +472,7 @@ static struct miscdevice gru_miscdev = { - .fops = &gru_fops, - }; - --struct vm_operations_struct gru_vm_ops = { -+const struct vm_operations_struct gru_vm_ops = { - .close = gru_vma_close, - .fault = gru_fault, - }; -diff -urNp linux-2.6.30.4/drivers/misc/sgi-gru/grutables.h linux-2.6.30.4/drivers/misc/sgi-gru/grutables.h ---- linux-2.6.30.4/drivers/misc/sgi-gru/grutables.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/misc/sgi-gru/grutables.h 2009-07-30 17:46:28.013592240 -0400 -@@ -589,7 +589,7 @@ static inline void unlock_tgh_handle(str - */ - struct gru_unload_context_req; - --extern struct vm_operations_struct gru_vm_ops; -+extern const struct vm_operations_struct gru_vm_ops; - extern struct device *grudev; - - extern struct gru_vma_data *gru_alloc_vma_data(struct vm_area_struct *vma, -diff -urNp linux-2.6.30.4/drivers/mmc/core/debugfs.c linux-2.6.30.4/drivers/mmc/core/debugfs.c ---- linux-2.6.30.4/drivers/mmc/core/debugfs.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/mmc/core/debugfs.c 2009-07-30 12:06:52.113899680 -0400 -@@ -240,7 +240,7 @@ static int mmc_ext_csd_release(struct in - return 0; - } - --static struct file_operations mmc_dbg_ext_csd_fops = { -+static const struct file_operations mmc_dbg_ext_csd_fops = { - .open = mmc_ext_csd_open, - .read = mmc_ext_csd_read, - .release = mmc_ext_csd_release, -diff -urNp linux-2.6.30.4/drivers/mtd/devices/doc2000.c linux-2.6.30.4/drivers/mtd/devices/doc2000.c ---- linux-2.6.30.4/drivers/mtd/devices/doc2000.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/mtd/devices/doc2000.c 2009-07-30 09:48:10.037448258 -0400 -@@ -776,7 +776,7 @@ static int doc_write(struct mtd_info *mt - - /* The ECC will not be calculated correctly if less than 512 is written */ - /* DBB- -- if (len != 0x200 && eccbuf) -+ if (len != 0x200) - printk(KERN_WARNING - "ECC needs a full sector write (adr: %lx size %lx)\n", - (long) to, (long) len); -diff -urNp linux-2.6.30.4/drivers/mtd/devices/doc2001.c linux-2.6.30.4/drivers/mtd/devices/doc2001.c ---- linux-2.6.30.4/drivers/mtd/devices/doc2001.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/mtd/devices/doc2001.c 2009-07-30 11:10:49.040301758 -0400 -@@ -395,6 +395,8 @@ static int doc_read (struct mtd_info *mt - /* Don't allow read past end of device */ - if (from >= this->totlen) - return -EINVAL; -+ if (!len) -+ return -EINVAL; - - /* Don't allow a single read to cross a 512-byte block boundary */ - if (from + len > ((from | 0x1ff) + 1)) -diff -urNp linux-2.6.30.4/drivers/mtd/ubi/build.c linux-2.6.30.4/drivers/mtd/ubi/build.c ---- linux-2.6.30.4/drivers/mtd/ubi/build.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/mtd/ubi/build.c 2009-07-30 09:48:10.038828720 -0400 -@@ -1112,7 +1112,7 @@ static int __init bytes_str_to_int(const - unsigned long result; - - result = simple_strtoul(str, &endp, 0); -- if (str == endp || result < 0) { -+ if (str == endp) { - printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n", - str); - return -EINVAL; -diff -urNp linux-2.6.30.4/drivers/net/irda/vlsi_ir.c linux-2.6.30.4/drivers/net/irda/vlsi_ir.c ---- linux-2.6.30.4/drivers/net/irda/vlsi_ir.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/net/irda/vlsi_ir.c 2009-07-30 09:48:10.038828720 -0400 -@@ -906,13 +906,12 @@ static int vlsi_hard_start_xmit(struct s - /* no race - tx-ring already empty */ - vlsi_set_baud(idev, iobase); - netif_wake_queue(ndev); -- } -- else -- ; -+ } else { - /* keep the speed change pending like it would - * for any len>0 packet. tx completion interrupt - * will apply it when the tx ring becomes empty. - */ -+ } - spin_unlock_irqrestore(&idev->lock, flags); - dev_kfree_skb_any(skb); - return 0; -diff -urNp linux-2.6.30.4/drivers/net/pcnet32.c linux-2.6.30.4/drivers/net/pcnet32.c ---- linux-2.6.30.4/drivers/net/pcnet32.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/net/pcnet32.c 2009-07-30 09:48:10.039525961 -0400 -@@ -78,7 +78,7 @@ static int cards_found; - /* - * VLB I/O addresses - */ --static unsigned int pcnet32_portlist[] __initdata = -+static unsigned int pcnet32_portlist[] __devinitdata = - { 0x300, 0x320, 0x340, 0x360, 0 }; - - static int pcnet32_debug = 0; -diff -urNp linux-2.6.30.4/drivers/net/tg3.h linux-2.6.30.4/drivers/net/tg3.h ---- linux-2.6.30.4/drivers/net/tg3.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/net/tg3.h 2009-07-30 09:48:10.040563677 -0400 -@@ -89,6 +89,7 @@ - #define CHIPREV_ID_5750_A0 0x4000 - #define CHIPREV_ID_5750_A1 0x4001 - #define CHIPREV_ID_5750_A3 0x4003 -+#define CHIPREV_ID_5750_C1 0x4201 - #define CHIPREV_ID_5750_C2 0x4202 - #define CHIPREV_ID_5752_A0_HW 0x5000 - #define CHIPREV_ID_5752_A0 0x6000 -diff -urNp linux-2.6.30.4/drivers/oprofile/buffer_sync.c linux-2.6.30.4/drivers/oprofile/buffer_sync.c ---- linux-2.6.30.4/drivers/oprofile/buffer_sync.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/oprofile/buffer_sync.c 2009-07-30 09:48:10.040563677 -0400 -@@ -341,7 +341,7 @@ static void add_data(struct op_entry *en - if (cookie == NO_COOKIE) - offset = pc; - if (cookie == INVALID_COOKIE) { -- atomic_inc(&oprofile_stats.sample_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); - offset = pc; - } - if (cookie != last_cookie) { -@@ -385,14 +385,14 @@ add_sample(struct mm_struct *mm, struct - /* add userspace sample */ - - if (!mm) { -- atomic_inc(&oprofile_stats.sample_lost_no_mm); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm); - return 0; - } - - cookie = lookup_dcookie(mm, s->eip, &offset); - - if (cookie == INVALID_COOKIE) { -- atomic_inc(&oprofile_stats.sample_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); - return 0; - } - -@@ -561,7 +561,7 @@ void sync_buffer(int cpu) - /* ignore backtraces if failed to add a sample */ - if (state == sb_bt_start) { - state = sb_bt_ignore; -- atomic_inc(&oprofile_stats.bt_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping); - } - } - release_mm(mm); -diff -urNp linux-2.6.30.4/drivers/oprofile/event_buffer.c linux-2.6.30.4/drivers/oprofile/event_buffer.c ---- linux-2.6.30.4/drivers/oprofile/event_buffer.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/oprofile/event_buffer.c 2009-07-30 09:48:10.040563677 -0400 -@@ -42,7 +42,7 @@ static atomic_t buffer_ready = ATOMIC_IN - void add_event_entry(unsigned long value) - { - if (buffer_pos == buffer_size) { -- atomic_inc(&oprofile_stats.event_lost_overflow); -+ atomic_inc_unchecked(&oprofile_stats.event_lost_overflow); - return; - } - -diff -urNp linux-2.6.30.4/drivers/oprofile/oprofilefs.c linux-2.6.30.4/drivers/oprofile/oprofilefs.c ---- linux-2.6.30.4/drivers/oprofile/oprofilefs.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/oprofile/oprofilefs.c 2009-07-30 09:48:10.043540480 -0400 -@@ -35,7 +35,7 @@ static struct inode *oprofilefs_get_inod - } - - --static struct super_operations s_ops = { -+static const struct super_operations s_ops = { - .statfs = simple_statfs, - .drop_inode = generic_delete_inode, - }; -@@ -187,7 +187,7 @@ static const struct file_operations atom - - - int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root, -- char const *name, atomic_t *val) -+ char const *name, atomic_unchecked_t *val) - { - struct dentry *d = __oprofilefs_create_file(sb, root, name, - &atomic_ro_fops, 0444); -diff -urNp linux-2.6.30.4/drivers/oprofile/oprofile_stats.h linux-2.6.30.4/drivers/oprofile/oprofile_stats.h ---- linux-2.6.30.4/drivers/oprofile/oprofile_stats.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/oprofile/oprofile_stats.h 2009-07-30 09:48:10.043540480 -0400 -@@ -13,10 +13,10 @@ - #include - - struct oprofile_stat_struct { -- atomic_t sample_lost_no_mm; -- atomic_t sample_lost_no_mapping; -- atomic_t bt_lost_no_mapping; -- atomic_t event_lost_overflow; -+ atomic_unchecked_t sample_lost_no_mm; -+ atomic_unchecked_t sample_lost_no_mapping; -+ atomic_unchecked_t bt_lost_no_mapping; -+ atomic_unchecked_t event_lost_overflow; - }; - - extern struct oprofile_stat_struct oprofile_stats; -diff -urNp linux-2.6.30.4/drivers/pci/hotplug/cpqphp.h linux-2.6.30.4/drivers/pci/hotplug/cpqphp.h ---- linux-2.6.30.4/drivers/pci/hotplug/cpqphp.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pci/hotplug/cpqphp.h 2009-07-30 09:48:10.043540480 -0400 -@@ -449,7 +449,7 @@ extern u8 cpqhp_disk_irq; - - /* inline functions */ - --static inline char *slot_name(struct slot *slot) -+static inline const char *slot_name(struct slot *slot) - { - return hotplug_slot_name(slot->hotplug_slot); - } -diff -urNp linux-2.6.30.4/drivers/pci/hotplug/cpqphp_nvram.c linux-2.6.30.4/drivers/pci/hotplug/cpqphp_nvram.c ---- linux-2.6.30.4/drivers/pci/hotplug/cpqphp_nvram.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pci/hotplug/cpqphp_nvram.c 2009-07-30 09:48:10.043540480 -0400 -@@ -425,9 +425,13 @@ static u32 store_HRT (void __iomem *rom_ - - void compaq_nvram_init (void __iomem *rom_start) - { -+ -+#ifndef CONFIG_PAX_KERNEXEC - if (rom_start) { - compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR); - } -+#endif -+ - dbg("int15 entry = %p\n", compaq_int15_entry_point); - - /* initialize our int15 lock */ -diff -urNp linux-2.6.30.4/drivers/pci/pcie/aer/aerdrv_core.c linux-2.6.30.4/drivers/pci/pcie/aer/aerdrv_core.c ---- linux-2.6.30.4/drivers/pci/pcie/aer/aerdrv_core.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pci/pcie/aer/aerdrv_core.c 2009-07-30 09:48:10.044753152 -0400 -@@ -670,7 +670,7 @@ static void aer_isr_one_error(struct pci - struct aer_err_source *e_src) - { - struct device *s_device; -- struct aer_err_info e_info = {0, 0, 0,}; -+ struct aer_err_info e_info = {0, 0, 0, {0, 0, 0, 0}}; - int i; - u16 id; - -diff -urNp linux-2.6.30.4/drivers/pci/pcie/portdrv_pci.c linux-2.6.30.4/drivers/pci/pcie/portdrv_pci.c ---- linux-2.6.30.4/drivers/pci/pcie/portdrv_pci.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pci/pcie/portdrv_pci.c 2009-07-30 09:48:10.044753152 -0400 -@@ -249,7 +249,7 @@ static void pcie_portdrv_err_resume(stru - static const struct pci_device_id port_pci_ids[] = { { - /* handle any PCI-Express port */ - PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0), -- }, { /* end: all zeroes */ } -+ }, { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, port_pci_ids); - -diff -urNp linux-2.6.30.4/drivers/pci/proc.c linux-2.6.30.4/drivers/pci/proc.c ---- linux-2.6.30.4/drivers/pci/proc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pci/proc.c 2009-07-30 11:10:49.067392504 -0400 -@@ -480,7 +480,16 @@ static const struct file_operations proc - static int __init pci_proc_init(void) - { - struct pci_dev *dev = NULL; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); -+#endif -+#else - proc_bus_pci_dir = proc_mkdir("bus/pci", NULL); -+#endif - proc_create("devices", 0, proc_bus_pci_dir, - &proc_bus_pci_dev_operations); - proc_initialized = 1; -diff -urNp linux-2.6.30.4/drivers/pcmcia/ti113x.h linux-2.6.30.4/drivers/pcmcia/ti113x.h ---- linux-2.6.30.4/drivers/pcmcia/ti113x.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pcmcia/ti113x.h 2009-07-30 09:48:10.044753152 -0400 -@@ -903,7 +903,7 @@ static struct pci_device_id ene_tune_tbl - DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID, - ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), - -- {} -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus) -diff -urNp linux-2.6.30.4/drivers/pcmcia/yenta_socket.c linux-2.6.30.4/drivers/pcmcia/yenta_socket.c ---- linux-2.6.30.4/drivers/pcmcia/yenta_socket.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pcmcia/yenta_socket.c 2009-07-30 09:48:10.045642944 -0400 -@@ -1366,7 +1366,7 @@ static struct pci_device_id yenta_table - - /* match any cardbus bridge */ - CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), -- { /* all zeroes */ } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, yenta_table); - -diff -urNp linux-2.6.30.4/drivers/platform/x86/wmi.c linux-2.6.30.4/drivers/platform/x86/wmi.c ---- linux-2.6.30.4/drivers/platform/x86/wmi.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/platform/x86/wmi.c 2009-08-09 07:48:48.278373587 -0400 -@@ -270,7 +270,7 @@ u32 method_id, const struct acpi_buffer - acpi_status status; - struct acpi_object_list input; - union acpi_object params[3]; -- char method[4] = "WM"; -+ char method[5] = "WM"; - - if (!find_guid(guid_string, &wblock)) - return AE_ERROR; -@@ -328,8 +328,8 @@ struct acpi_buffer *out) - acpi_status status, wc_status = AE_ERROR; - struct acpi_object_list input, wc_input; - union acpi_object wc_params[1], wq_params[1]; -- char method[4]; -- char wc_method[4] = "WC"; -+ char method[5]; -+ char wc_method[5] = "WC"; - - if (!guid_string || !out) - return AE_BAD_PARAMETER; -@@ -410,7 +410,7 @@ const struct acpi_buffer *in) - acpi_handle handle; - struct acpi_object_list input; - union acpi_object params[2]; -- char method[4] = "WS"; -+ char method[5] = "WS"; - - if (!guid_string || !in) - return AE_BAD_DATA; -diff -urNp linux-2.6.30.4/drivers/pnp/pnpbios/bioscalls.c linux-2.6.30.4/drivers/pnp/pnpbios/bioscalls.c ---- linux-2.6.30.4/drivers/pnp/pnpbios/bioscalls.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pnp/pnpbios/bioscalls.c 2009-07-30 09:48:10.045642944 -0400 -@@ -60,7 +60,7 @@ set_base(gdt[(selname) >> 3], (u32)(addr - set_limit(gdt[(selname) >> 3], size); \ - } while(0) - --static struct desc_struct bad_bios_desc; -+static struct desc_struct bad_bios_desc __read_only; - - /* - * At some point we want to use this stack frame pointer to unwind -@@ -87,6 +87,10 @@ static inline u16 call_pnp_bios(u16 func - struct desc_struct save_desc_40; - int cpu; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* - * PnP BIOSes are generally not terribly re-entrant. - * Also, don't rely on them to save everything correctly. -@@ -96,8 +100,17 @@ static inline u16 call_pnp_bios(u16 func - - cpu = get_cpu(); - save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* On some boxes IRQ's during PnP BIOS calls are deadly. */ - spin_lock_irqsave(&pnp_bios_lock, flags); - -@@ -134,7 +147,16 @@ static inline u16 call_pnp_bios(u16 func - :"memory"); - spin_unlock_irqrestore(&pnp_bios_lock, flags); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - put_cpu(); - - /* If we get here and this is set then the PnP BIOS faulted on us. */ -@@ -468,16 +490,24 @@ int pnp_bios_read_escd(char *data, u32 n - return status; - } - --void pnpbios_calls_init(union pnp_bios_install_struct *header) -+void __init pnpbios_calls_init(union pnp_bios_install_struct *header) - { - int i; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - spin_lock_init(&pnp_bios_lock); - pnp_bios_callpoint.offset = header->fields.pm16offset; - pnp_bios_callpoint.segment = PNP_CS16; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - bad_bios_desc.a = 0; -- bad_bios_desc.b = 0x00409200; -+ bad_bios_desc.b = 0x00409300; - - set_base(bad_bios_desc, __va((unsigned long)0x40 << 4)); - _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4)); -@@ -491,4 +521,9 @@ void pnpbios_calls_init(union pnp_bios_i - set_base(gdt[GDT_ENTRY_PNPBIOS_DS], - __va(header->fields.pm16dseg)); - } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } -diff -urNp linux-2.6.30.4/drivers/pnp/quirks.c linux-2.6.30.4/drivers/pnp/quirks.c ---- linux-2.6.30.4/drivers/pnp/quirks.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pnp/quirks.c 2009-07-30 09:48:10.045642944 -0400 -@@ -327,7 +327,7 @@ static struct pnp_fixup pnp_fixups[] = { - /* PnP resources that might overlap PCI BARs */ - {"PNP0c01", quirk_system_pci_resources}, - {"PNP0c02", quirk_system_pci_resources}, -- {""} -+ {"", NULL} - }; - - void pnp_fixup_device(struct pnp_dev *dev) -diff -urNp linux-2.6.30.4/drivers/pnp/resource.c linux-2.6.30.4/drivers/pnp/resource.c ---- linux-2.6.30.4/drivers/pnp/resource.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/pnp/resource.c 2009-07-30 09:48:10.045642944 -0400 -@@ -355,7 +355,7 @@ int pnp_check_irq(struct pnp_dev *dev, s - return 1; - - /* check if the resource is valid */ -- if (*irq < 0 || *irq > 15) -+ if (*irq > 15) - return 0; - - /* check if the resource is reserved */ -@@ -419,7 +419,7 @@ int pnp_check_dma(struct pnp_dev *dev, s - return 1; - - /* check if the resource is valid */ -- if (*dma < 0 || *dma == 4 || *dma > 7) -+ if (*dma == 4 || *dma > 7) - return 0; - - /* check if the resource is reserved */ -diff -urNp linux-2.6.30.4/drivers/s390/cio/qdio_debug.c linux-2.6.30.4/drivers/s390/cio/qdio_debug.c ---- linux-2.6.30.4/drivers/s390/cio/qdio_debug.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/s390/cio/qdio_debug.c 2009-07-30 09:48:10.046735063 -0400 -@@ -145,7 +145,7 @@ static void remove_debugfs_entry(struct - } - } - --static struct file_operations debugfs_fops = { -+static const struct file_operations debugfs_fops = { - .owner = THIS_MODULE, - .open = qstat_seq_open, - .read = seq_read, -diff -urNp linux-2.6.30.4/drivers/s390/cio/qdio_perf.c linux-2.6.30.4/drivers/s390/cio/qdio_perf.c ---- linux-2.6.30.4/drivers/s390/cio/qdio_perf.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/s390/cio/qdio_perf.c 2009-07-30 09:48:10.046735063 -0400 -@@ -96,7 +96,7 @@ static int qdio_perf_seq_open(struct ino - return single_open(filp, qdio_perf_proc_show, NULL); - } - --static struct file_operations qdio_perf_proc_fops = { -+static const struct file_operations qdio_perf_proc_fops = { - .owner = THIS_MODULE, - .open = qdio_perf_seq_open, - .read = seq_read, -diff -urNp linux-2.6.30.4/drivers/scsi/libfc/fc_exch.c linux-2.6.30.4/drivers/scsi/libfc/fc_exch.c ---- linux-2.6.30.4/drivers/scsi/libfc/fc_exch.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/scsi/libfc/fc_exch.c 2009-07-30 09:48:10.047458850 -0400 -@@ -84,12 +84,12 @@ struct fc_exch_mgr { - * all together if not used XXX - */ - struct { -- atomic_t no_free_exch; -- atomic_t no_free_exch_xid; -- atomic_t xid_not_found; -- atomic_t xid_busy; -- atomic_t seq_not_found; -- atomic_t non_bls_resp; -+ atomic_unchecked_t no_free_exch; -+ atomic_unchecked_t no_free_exch_xid; -+ atomic_unchecked_t xid_not_found; -+ atomic_unchecked_t xid_busy; -+ atomic_unchecked_t seq_not_found; -+ atomic_unchecked_t non_bls_resp; - } stats; - struct fc_exch **exches; /* for exch pointers indexed by xid */ - }; -@@ -534,7 +534,7 @@ struct fc_exch *fc_exch_alloc(struct fc_ - /* allocate memory for exchange */ - ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC); - if (!ep) { -- atomic_inc(&mp->stats.no_free_exch); -+ atomic_inc_unchecked(&mp->stats.no_free_exch); - goto out; - } - memset(ep, 0, sizeof(*ep)); -@@ -579,7 +579,7 @@ out: - return ep; - err: - spin_unlock_bh(&mp->em_lock); -- atomic_inc(&mp->stats.no_free_exch_xid); -+ atomic_inc_unchecked(&mp->stats.no_free_exch_xid); - mempool_free(ep, mp->ep_pool); - return NULL; - } -@@ -682,7 +682,7 @@ static enum fc_pf_rjt_reason fc_seq_look - xid = ntohs(fh->fh_ox_id); /* we originated exch */ - ep = fc_exch_find(mp, xid); - if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - reject = FC_RJT_OX_ID; - goto out; - } -@@ -712,7 +712,7 @@ static enum fc_pf_rjt_reason fc_seq_look - ep = fc_exch_find(mp, xid); - if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) { - if (ep) { -- atomic_inc(&mp->stats.xid_busy); -+ atomic_inc_unchecked(&mp->stats.xid_busy); - reject = FC_RJT_RX_ID; - goto rel; - } -@@ -723,7 +723,7 @@ static enum fc_pf_rjt_reason fc_seq_look - } - xid = ep->xid; /* get our XID */ - } else if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - reject = FC_RJT_RX_ID; /* XID not found */ - goto out; - } -@@ -744,7 +744,7 @@ static enum fc_pf_rjt_reason fc_seq_look - } else { - sp = &ep->seq; - if (sp->id != fh->fh_seq_id) { -- atomic_inc(&mp->stats.seq_not_found); -+ atomic_inc_unchecked(&mp->stats.seq_not_found); - reject = FC_RJT_SEQ_ID; /* sequence/exch should exist */ - goto rel; - } -@@ -1156,18 +1156,18 @@ static void fc_exch_recv_seq_resp(struct - - ep = fc_exch_find(mp, ntohs(fh->fh_ox_id)); - if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto out; - } - if (ep->rxid == FC_XID_UNKNOWN) - ep->rxid = ntohs(fh->fh_rx_id); - if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - if (ep->did != ntoh24(fh->fh_s_id) && - ep->did != FC_FID_FLOGI) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - sof = fr_sof(fp); -@@ -1178,7 +1178,7 @@ static void fc_exch_recv_seq_resp(struct - } else { - sp = &ep->seq; - if (sp->id != fh->fh_seq_id) { -- atomic_inc(&mp->stats.seq_not_found); -+ atomic_inc_unchecked(&mp->stats.seq_not_found); - goto rel; - } - } -@@ -1237,10 +1237,10 @@ static void fc_exch_recv_resp(struct fc_ - - sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */ - if (!sp) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - FC_DEBUG_EXCH("seq lookup failed\n"); - } else { -- atomic_inc(&mp->stats.non_bls_resp); -+ atomic_inc_unchecked(&mp->stats.non_bls_resp); - FC_DEBUG_EXCH("non-BLS response to sequence"); - } - fc_frame_free(fp); -diff -urNp linux-2.6.30.4/drivers/scsi/scsi_logging.h linux-2.6.30.4/drivers/scsi/scsi_logging.h ---- linux-2.6.30.4/drivers/scsi/scsi_logging.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/scsi/scsi_logging.h 2009-07-30 09:48:10.047458850 -0400 -@@ -51,7 +51,7 @@ do { \ - } while (0); \ - } while (0) - #else --#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) -+#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) do {} while (0) - #endif /* CONFIG_SCSI_LOGGING */ - - /* -diff -urNp linux-2.6.30.4/drivers/scsi/sg.c linux-2.6.30.4/drivers/scsi/sg.c ---- linux-2.6.30.4/drivers/scsi/sg.c 2009-07-30 20:32:40.512605937 -0400 -+++ linux-2.6.30.4/drivers/scsi/sg.c 2009-07-30 20:32:47.966608613 -0400 -@@ -1186,7 +1186,7 @@ sg_vma_fault(struct vm_area_struct *vma, - return VM_FAULT_SIGBUS; - } - --static struct vm_operations_struct sg_mmap_vm_ops = { -+static const struct vm_operations_struct sg_mmap_vm_ops = { - .fault = sg_vma_fault, - }; - -@@ -1318,7 +1318,7 @@ static void sg_rq_end_io(struct request - } - } - --static struct file_operations sg_fops = { -+static const struct file_operations sg_fops = { - .owner = THIS_MODULE, - .read = sg_read, - .write = sg_write, -@@ -2194,8 +2194,11 @@ static int sg_proc_seq_show_int(struct s - static int sg_proc_single_open_adio(struct inode *inode, struct file *file); - static ssize_t sg_proc_write_adio(struct file *filp, const char __user *buffer, - size_t count, loff_t *off); --static struct file_operations adio_fops = { -- /* .owner, .read and .llseek added in sg_proc_init() */ -+ -+static const struct file_operations adio_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_single_open_adio, - .write = sg_proc_write_adio, - .release = single_release, -@@ -2204,7 +2207,10 @@ static struct file_operations adio_fops - static int sg_proc_single_open_dressz(struct inode *inode, struct file *file); - static ssize_t sg_proc_write_dressz(struct file *filp, - const char __user *buffer, size_t count, loff_t *off); --static struct file_operations dressz_fops = { -+static const struct file_operations dressz_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_single_open_dressz, - .write = sg_proc_write_dressz, - .release = single_release, -@@ -2212,14 +2218,20 @@ static struct file_operations dressz_fop - - static int sg_proc_seq_show_version(struct seq_file *s, void *v); - static int sg_proc_single_open_version(struct inode *inode, struct file *file); --static struct file_operations version_fops = { -+static const struct file_operations version_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_single_open_version, - .release = single_release, - }; - - static int sg_proc_seq_show_devhdr(struct seq_file *s, void *v); - static int sg_proc_single_open_devhdr(struct inode *inode, struct file *file); --static struct file_operations devhdr_fops = { -+static const struct file_operations devhdr_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_single_open_devhdr, - .release = single_release, - }; -@@ -2229,11 +2241,14 @@ static int sg_proc_open_dev(struct inode - static void * dev_seq_start(struct seq_file *s, loff_t *pos); - static void * dev_seq_next(struct seq_file *s, void *v, loff_t *pos); - static void dev_seq_stop(struct seq_file *s, void *v); --static struct file_operations dev_fops = { -+static const struct file_operations dev_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_open_dev, - .release = seq_release, - }; --static struct seq_operations dev_seq_ops = { -+static const struct seq_operations dev_seq_ops = { - .start = dev_seq_start, - .next = dev_seq_next, - .stop = dev_seq_stop, -@@ -2242,11 +2257,14 @@ static struct seq_operations dev_seq_ops - - static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v); - static int sg_proc_open_devstrs(struct inode *inode, struct file *file); --static struct file_operations devstrs_fops = { -+static const struct file_operations devstrs_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_open_devstrs, - .release = seq_release, - }; --static struct seq_operations devstrs_seq_ops = { -+static const struct seq_operations devstrs_seq_ops = { - .start = dev_seq_start, - .next = dev_seq_next, - .stop = dev_seq_stop, -@@ -2255,11 +2273,14 @@ static struct seq_operations devstrs_seq - - static int sg_proc_seq_show_debug(struct seq_file *s, void *v); - static int sg_proc_open_debug(struct inode *inode, struct file *file); --static struct file_operations debug_fops = { -+static const struct file_operations debug_fops = { -+ .owner = THIS_MODULE, -+ .read = seq_read, -+ .llseek = seq_lseek, - .open = sg_proc_open_debug, - .release = seq_release, - }; --static struct seq_operations debug_seq_ops = { -+static const struct seq_operations debug_seq_ops = { - .start = dev_seq_start, - .next = dev_seq_next, - .stop = dev_seq_stop, -@@ -2269,7 +2290,7 @@ static struct seq_operations debug_seq_o - - struct sg_proc_leaf { - const char * name; -- struct file_operations * fops; -+ const struct file_operations * fops; - }; - - static struct sg_proc_leaf sg_proc_leaf_arr[] = { -@@ -2295,9 +2316,6 @@ sg_proc_init(void) - for (k = 0; k < num_leaves; ++k) { - leaf = &sg_proc_leaf_arr[k]; - mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO; -- leaf->fops->owner = THIS_MODULE; -- leaf->fops->read = seq_read; -- leaf->fops->llseek = seq_lseek; - proc_create(leaf->name, mask, sg_proc_sgp, leaf->fops); - } - return 0; -diff -urNp linux-2.6.30.4/drivers/serial/8250_pci.c linux-2.6.30.4/drivers/serial/8250_pci.c ---- linux-2.6.30.4/drivers/serial/8250_pci.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/serial/8250_pci.c 2009-07-30 09:48:10.048531085 -0400 -@@ -3572,7 +3572,7 @@ static struct pci_device_id serial_pci_t - PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, - 0xffff00, pbn_default }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - static struct pci_driver serial_pci_driver = { -diff -urNp linux-2.6.30.4/drivers/spi/spidev.c linux-2.6.30.4/drivers/spi/spidev.c ---- linux-2.6.30.4/drivers/spi/spidev.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/spi/spidev.c 2009-07-30 09:48:10.049614710 -0400 -@@ -532,7 +532,7 @@ static int spidev_release(struct inode * - return status; - } - --static struct file_operations spidev_fops = { -+static const struct file_operations spidev_fops = { - .owner = THIS_MODULE, - /* REVISIT switch to aio primitives, so that userspace - * gets more complete API coverage. It'll simplify things -diff -urNp linux-2.6.30.4/drivers/staging/android/binder.c linux-2.6.30.4/drivers/staging/android/binder.c ---- linux-2.6.30.4/drivers/staging/android/binder.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/android/binder.c 2009-07-30 12:07:09.614975906 -0400 -@@ -2699,7 +2699,7 @@ static void binder_vma_close(struct vm_a - binder_defer_work(proc, BINDER_DEFERRED_PUT_FILES); - } - --static struct vm_operations_struct binder_vm_ops = { -+static const struct vm_operations_struct binder_vm_ops = { - .open = binder_vma_open, - .close = binder_vma_close, - }; -@@ -3579,7 +3579,7 @@ static int binder_read_proc_transaction_ - return len < count ? len : count; - } - --static struct file_operations binder_fops = { -+static const struct file_operations binder_fops = { - .owner = THIS_MODULE, - .poll = binder_poll, - .unlocked_ioctl = binder_ioctl, -diff -urNp linux-2.6.30.4/drivers/staging/android/logger.c linux-2.6.30.4/drivers/staging/android/logger.c ---- linux-2.6.30.4/drivers/staging/android/logger.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/android/logger.c 2009-07-30 09:48:10.050638667 -0400 -@@ -519,7 +519,7 @@ static long logger_ioctl(struct file *fi - return ret; - } - --static struct file_operations logger_fops = { -+static const struct file_operations logger_fops = { - .owner = THIS_MODULE, - .read = logger_read, - .aio_write = logger_aio_write, -diff -urNp linux-2.6.30.4/drivers/staging/android/ram_console.c linux-2.6.30.4/drivers/staging/android/ram_console.c ---- linux-2.6.30.4/drivers/staging/android/ram_console.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/android/ram_console.c 2009-07-30 09:48:10.050638667 -0400 -@@ -365,7 +365,7 @@ static ssize_t ram_console_read_old(stru - return count; - } - --static struct file_operations ram_console_file_ops = { -+static const struct file_operations ram_console_file_ops = { - .owner = THIS_MODULE, - .read = ram_console_read_old, - }; -diff -urNp linux-2.6.30.4/drivers/staging/b3dfg/b3dfg.c linux-2.6.30.4/drivers/staging/b3dfg/b3dfg.c ---- linux-2.6.30.4/drivers/staging/b3dfg/b3dfg.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/b3dfg/b3dfg.c 2009-07-30 12:07:09.622002360 -0400 -@@ -455,7 +455,7 @@ static int b3dfg_vma_fault(struct vm_are - return VM_FAULT_NOPAGE; - } - --static struct vm_operations_struct b3dfg_vm_ops = { -+static const struct vm_operations_struct b3dfg_vm_ops = { - .fault = b3dfg_vma_fault, - }; - -@@ -855,7 +855,7 @@ static int b3dfg_mmap(struct file *filp, - return r; - } - --static struct file_operations b3dfg_fops = { -+static const struct file_operations b3dfg_fops = { - .owner = THIS_MODULE, - .open = b3dfg_open, - .release = b3dfg_release, -diff -urNp linux-2.6.30.4/drivers/staging/comedi/comedi_fops.c linux-2.6.30.4/drivers/staging/comedi/comedi_fops.c ---- linux-2.6.30.4/drivers/staging/comedi/comedi_fops.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/comedi/comedi_fops.c 2009-07-30 09:48:10.051586138 -0400 -@@ -1395,7 +1395,7 @@ void comedi_unmap(struct vm_area_struct - mutex_unlock(&dev->mutex); - } - --static struct vm_operations_struct comedi_vm_ops = { -+static const struct vm_operations_struct comedi_vm_ops = { - .close = comedi_unmap, - }; - -diff -urNp linux-2.6.30.4/drivers/staging/epl/EplApiLinuxKernel.c linux-2.6.30.4/drivers/staging/epl/EplApiLinuxKernel.c ---- linux-2.6.30.4/drivers/staging/epl/EplApiLinuxKernel.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/epl/EplApiLinuxKernel.c 2009-07-30 09:48:10.051586138 -0400 -@@ -203,7 +203,7 @@ static int EplLinIoctl(struct inode *pDe - module_init(EplLinInit); - module_exit(EplLinExit); - --static struct file_operations EplLinFileOps_g = { -+static const struct file_operations EplLinFileOps_g = { - .owner = THIS_MODULE, - .open = EplLinOpen, - .release = EplLinRelease, -diff -urNp linux-2.6.30.4/drivers/staging/go7007/go7007-v4l2.c linux-2.6.30.4/drivers/staging/go7007/go7007-v4l2.c ---- linux-2.6.30.4/drivers/staging/go7007/go7007-v4l2.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/go7007/go7007-v4l2.c 2009-07-30 09:48:10.052768252 -0400 -@@ -1717,7 +1717,7 @@ static int go7007_vm_fault(struct vm_are - return 0; - } - --static struct vm_operations_struct go7007_vm_ops = { -+static const struct vm_operations_struct go7007_vm_ops = { - .open = go7007_vm_open, - .close = go7007_vm_close, - .fault = go7007_vm_fault, -diff -urNp linux-2.6.30.4/drivers/staging/meilhaus/memain.c linux-2.6.30.4/drivers/staging/meilhaus/memain.c ---- linux-2.6.30.4/drivers/staging/meilhaus/memain.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/meilhaus/memain.c 2009-07-30 09:48:10.052768252 -0400 -@@ -108,7 +108,7 @@ static struct cdev *cdevp; - /* File operations provided by the module - */ - --static struct file_operations me_file_operations = { -+static const struct file_operations me_file_operations = { - .owner = THIS_MODULE, - .ioctl = me_ioctl, - .open = me_open, -diff -urNp linux-2.6.30.4/drivers/staging/panel/panel.c linux-2.6.30.4/drivers/staging/panel/panel.c ---- linux-2.6.30.4/drivers/staging/panel/panel.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/panel/panel.c 2009-07-30 09:48:10.053870849 -0400 -@@ -1263,7 +1263,7 @@ static int lcd_release(struct inode *ino - return 0; - } - --static struct file_operations lcd_fops = { -+static const struct file_operations lcd_fops = { - .write = lcd_write, - .open = lcd_open, - .release = lcd_release, -@@ -1519,7 +1519,7 @@ static int keypad_release(struct inode * - return 0; - } - --static struct file_operations keypad_fops = { -+static const struct file_operations keypad_fops = { - .read = keypad_read, /* read */ - .open = keypad_open, /* open */ - .release = keypad_release, /* close */ -diff -urNp linux-2.6.30.4/drivers/staging/poch/poch.c linux-2.6.30.4/drivers/staging/poch/poch.c ---- linux-2.6.30.4/drivers/staging/poch/poch.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/poch/poch.c 2009-07-30 09:48:10.053870849 -0400 -@@ -1056,7 +1056,7 @@ static int poch_ioctl(struct inode *inod - return 0; - } - --static struct file_operations poch_fops = { -+static const struct file_operations poch_fops = { - .owner = THIS_MODULE, - .open = poch_open, - .release = poch_release, -diff -urNp linux-2.6.30.4/drivers/staging/rspiusb/rspiusb.c linux-2.6.30.4/drivers/staging/rspiusb/rspiusb.c ---- linux-2.6.30.4/drivers/staging/rspiusb/rspiusb.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/staging/rspiusb/rspiusb.c 2009-07-30 09:48:10.053870849 -0400 -@@ -708,7 +708,7 @@ static int MapUserBuffer(struct ioctl_st - return 0; - } - --static struct file_operations piusb_fops = { -+static const struct file_operations piusb_fops = { - .owner = THIS_MODULE, - .ioctl = piusb_ioctl, - .open = piusb_open, -diff -urNp linux-2.6.30.4/drivers/uio/uio.c linux-2.6.30.4/drivers/uio/uio.c ---- linux-2.6.30.4/drivers/uio/uio.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/uio/uio.c 2009-07-30 09:48:10.053870849 -0400 -@@ -658,7 +658,7 @@ static int uio_vma_fault(struct vm_area_ - return 0; - } - --static struct vm_operations_struct uio_vm_ops = { -+static const struct vm_operations_struct uio_vm_ops = { - .open = uio_vma_open, - .close = uio_vma_close, - .fault = uio_vma_fault, -diff -urNp linux-2.6.30.4/drivers/usb/atm/usbatm.c linux-2.6.30.4/drivers/usb/atm/usbatm.c ---- linux-2.6.30.4/drivers/usb/atm/usbatm.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/atm/usbatm.c 2009-07-30 09:48:10.055402995 -0400 -@@ -333,7 +333,7 @@ static void usbatm_extract_one_cell(stru - if (printk_ratelimit()) - atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n", - __func__, vpi, vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - -@@ -361,7 +361,7 @@ static void usbatm_extract_one_cell(stru - if (length > ATM_MAX_AAL5_PDU) { - atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n", - __func__, length, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - -@@ -370,14 +370,14 @@ static void usbatm_extract_one_cell(stru - if (sarb->len < pdu_length) { - atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n", - __func__, pdu_length, sarb->len, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - - if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) { - atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n", - __func__, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - -@@ -387,7 +387,7 @@ static void usbatm_extract_one_cell(stru - if (printk_ratelimit()) - atm_err(instance, "%s: no memory for skb (length: %u)!\n", - __func__, length); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto out; - } - -@@ -412,7 +412,7 @@ static void usbatm_extract_one_cell(stru - - vcc->push(vcc, skb); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - out: - skb_trim(sarb, 0); - } -@@ -616,7 +616,7 @@ static void usbatm_tx_process(unsigned l - struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc; - - usbatm_pop(vcc, skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - skb = skb_dequeue(&instance->sndqueue); - } -diff -urNp linux-2.6.30.4/drivers/usb/class/cdc-acm.c linux-2.6.30.4/drivers/usb/class/cdc-acm.c ---- linux-2.6.30.4/drivers/usb/class/cdc-acm.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/class/cdc-acm.c 2009-07-30 09:48:10.055402995 -0400 -@@ -1403,7 +1403,7 @@ static struct usb_device_id acm_ids[] = - USB_CDC_ACM_PROTO_AT_CDMA) }, - - /* NOTE: COMM/ACM/0xff is likely MSFT RNDIS ... NOT a modem!! */ -- { } -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (usb, acm_ids); -diff -urNp linux-2.6.30.4/drivers/usb/class/usblp.c linux-2.6.30.4/drivers/usb/class/usblp.c ---- linux-2.6.30.4/drivers/usb/class/usblp.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/class/usblp.c 2009-07-30 09:48:10.055402995 -0400 -@@ -228,7 +228,7 @@ static const struct quirk_printer_struct - { 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut */ - { 0x04f9, 0x000d, USBLP_QUIRK_BIDIR }, /* Brother Industries, Ltd HL-1440 Laser Printer */ - { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt Printer M129C */ -- { 0, 0 } -+ { 0, 0, 0 } - }; - - static int usblp_wwait(struct usblp *usblp, int nonblock); -@@ -1406,7 +1406,7 @@ static struct usb_device_id usblp_ids [] - { USB_INTERFACE_INFO(7, 1, 2) }, - { USB_INTERFACE_INFO(7, 1, 3) }, - { USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */ -- { } /* Terminating entry */ -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */ - }; - - MODULE_DEVICE_TABLE (usb, usblp_ids); -diff -urNp linux-2.6.30.4/drivers/usb/class/usbtmc.c linux-2.6.30.4/drivers/usb/class/usbtmc.c ---- linux-2.6.30.4/drivers/usb/class/usbtmc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/class/usbtmc.c 2009-07-30 09:48:10.055402995 -0400 -@@ -954,7 +954,7 @@ static long usbtmc_ioctl(struct file *fi - return retval; - } - --static struct file_operations fops = { -+static const struct file_operations fops = { - .owner = THIS_MODULE, - .read = usbtmc_read, - .write = usbtmc_write, -diff -urNp linux-2.6.30.4/drivers/usb/core/hub.c linux-2.6.30.4/drivers/usb/core/hub.c ---- linux-2.6.30.4/drivers/usb/core/hub.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/core/hub.c 2009-07-30 09:48:10.057446184 -0400 -@@ -3194,7 +3194,7 @@ static struct usb_device_id hub_id_table - .bDeviceClass = USB_CLASS_HUB}, - { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, - .bInterfaceClass = USB_CLASS_HUB}, -- { } /* Terminating entry */ -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */ - }; - - MODULE_DEVICE_TABLE (usb, hub_id_table); -diff -urNp linux-2.6.30.4/drivers/usb/core/inode.c linux-2.6.30.4/drivers/usb/core/inode.c ---- linux-2.6.30.4/drivers/usb/core/inode.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/core/inode.c 2009-07-30 09:48:10.057446184 -0400 -@@ -47,7 +47,7 @@ - #define USBFS_DEFAULT_BUSMODE (S_IXUGO | S_IRUGO) - #define USBFS_DEFAULT_LISTMODE S_IRUGO - --static struct super_operations usbfs_ops; -+static const struct super_operations usbfs_ops; - static const struct file_operations default_file_operations; - static struct vfsmount *usbfs_mount; - static int usbfs_mount_count; /* = 0 */ -@@ -444,7 +444,7 @@ static const struct file_operations defa - .llseek = default_file_lseek, - }; - --static struct super_operations usbfs_ops = { -+static const struct super_operations usbfs_ops = { - .statfs = simple_statfs, - .drop_inode = generic_delete_inode, - .remount_fs = remount, -diff -urNp linux-2.6.30.4/drivers/usb/core/message.c linux-2.6.30.4/drivers/usb/core/message.c ---- linux-2.6.30.4/drivers/usb/core/message.c 2009-07-30 20:32:40.522633558 -0400 -+++ linux-2.6.30.4/drivers/usb/core/message.c 2009-07-30 20:32:47.970590702 -0400 -@@ -890,8 +890,8 @@ char *usb_cache_string(struct usb_device - buf = kmalloc(256, GFP_KERNEL); - if (buf) { - len = usb_string(udev, index, buf, 256); -- if (len > 0) { -- smallbuf = kmalloc(++len, GFP_KERNEL); -+ if (len++ > 0) { -+ smallbuf = kmalloc(len, GFP_KERNEL); - if (!smallbuf) - return buf; - memcpy(smallbuf, buf, len); -diff -urNp linux-2.6.30.4/drivers/usb/gadget/inode.c linux-2.6.30.4/drivers/usb/gadget/inode.c ---- linux-2.6.30.4/drivers/usb/gadget/inode.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/gadget/inode.c 2009-07-30 09:48:10.057446184 -0400 -@@ -2035,7 +2035,7 @@ gadgetfs_create_file (struct super_block - return inode; - } - --static struct super_operations gadget_fs_operations = { -+static const struct super_operations gadget_fs_operations = { - .statfs = simple_statfs, - .drop_inode = generic_delete_inode, - }; -diff -urNp linux-2.6.30.4/drivers/usb/gadget/printer.c linux-2.6.30.4/drivers/usb/gadget/printer.c ---- linux-2.6.30.4/drivers/usb/gadget/printer.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/gadget/printer.c 2009-07-30 09:48:10.059376894 -0400 -@@ -875,7 +875,7 @@ printer_ioctl(struct file *fd, unsigned - } - - /* used after endpoint configuration */ --static struct file_operations printer_io_operations = { -+static const struct file_operations printer_io_operations = { - .owner = THIS_MODULE, - .open = printer_open, - .read = printer_read, -diff -urNp linux-2.6.30.4/drivers/usb/host/ehci-pci.c linux-2.6.30.4/drivers/usb/host/ehci-pci.c ---- linux-2.6.30.4/drivers/usb/host/ehci-pci.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/host/ehci-pci.c 2009-07-30 09:48:10.059376894 -0400 -@@ -418,7 +418,7 @@ static const struct pci_device_id pci_id - PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0), - .driver_data = (unsigned long) &ehci_pci_hc_driver, - }, -- { /* end: all zeroes */ } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, pci_ids); - -diff -urNp linux-2.6.30.4/drivers/usb/host/uhci-hcd.c linux-2.6.30.4/drivers/usb/host/uhci-hcd.c ---- linux-2.6.30.4/drivers/usb/host/uhci-hcd.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/host/uhci-hcd.c 2009-07-30 09:48:10.059941908 -0400 -@@ -927,7 +927,7 @@ static const struct pci_device_id uhci_p - /* handle any USB UHCI controller */ - PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0), - .driver_data = (unsigned long) &uhci_driver, -- }, { /* end: all zeroes */ } -+ }, { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, uhci_pci_ids); -diff -urNp linux-2.6.30.4/drivers/usb/host/whci/debug.c linux-2.6.30.4/drivers/usb/host/whci/debug.c ---- linux-2.6.30.4/drivers/usb/host/whci/debug.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/host/whci/debug.c 2009-07-30 09:48:10.059941908 -0400 -@@ -134,7 +134,7 @@ static int pzl_open(struct inode *inode, - return single_open(file, pzl_print, inode->i_private); - } - --static struct file_operations di_fops = { -+static const struct file_operations di_fops = { - .open = di_open, - .read = seq_read, - .llseek = seq_lseek, -@@ -142,7 +142,7 @@ static struct file_operations di_fops = - .owner = THIS_MODULE, - }; - --static struct file_operations asl_fops = { -+static const struct file_operations asl_fops = { - .open = asl_open, - .read = seq_read, - .llseek = seq_lseek, -@@ -150,7 +150,7 @@ static struct file_operations asl_fops = - .owner = THIS_MODULE, - }; - --static struct file_operations pzl_fops = { -+static const struct file_operations pzl_fops = { - .open = pzl_open, - .read = seq_read, - .llseek = seq_lseek, -diff -urNp linux-2.6.30.4/drivers/usb/mon/mon_bin.c linux-2.6.30.4/drivers/usb/mon/mon_bin.c ---- linux-2.6.30.4/drivers/usb/mon/mon_bin.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/mon/mon_bin.c 2009-07-30 09:48:10.059941908 -0400 -@@ -1184,7 +1184,7 @@ static int mon_bin_vma_fault(struct vm_a - return 0; - } - --static struct vm_operations_struct mon_bin_vm_ops = { -+static const struct vm_operations_struct mon_bin_vm_ops = { - .open = mon_bin_vma_open, - .close = mon_bin_vma_close, - .fault = mon_bin_vma_fault, -diff -urNp linux-2.6.30.4/drivers/usb/storage/debug.h linux-2.6.30.4/drivers/usb/storage/debug.h ---- linux-2.6.30.4/drivers/usb/storage/debug.h 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/storage/debug.h 2009-07-30 09:48:10.059941908 -0400 -@@ -54,9 +54,9 @@ void usb_stor_show_sense( unsigned char - #define US_DEBUGPX(x...) printk( x ) - #define US_DEBUG(x) x - #else --#define US_DEBUGP(x...) --#define US_DEBUGPX(x...) --#define US_DEBUG(x) -+#define US_DEBUGP(x...) do {} while (0) -+#define US_DEBUGPX(x...) do {} while (0) -+#define US_DEBUG(x) do {} while (0) - #endif - - #endif -diff -urNp linux-2.6.30.4/drivers/usb/storage/usb.c linux-2.6.30.4/drivers/usb/storage/usb.c ---- linux-2.6.30.4/drivers/usb/storage/usb.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/storage/usb.c 2009-07-30 09:48:10.061383402 -0400 -@@ -118,7 +118,7 @@ MODULE_PARM_DESC(quirks, "supplemental l - - static struct us_unusual_dev us_unusual_dev_list[] = { - # include "unusual_devs.h" -- { } /* Terminating entry */ -+ { NULL, NULL, 0, 0, NULL } /* Terminating entry */ - }; - - #undef UNUSUAL_DEV -diff -urNp linux-2.6.30.4/drivers/usb/storage/usual-tables.c linux-2.6.30.4/drivers/usb/storage/usual-tables.c ---- linux-2.6.30.4/drivers/usb/storage/usual-tables.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/usb/storage/usual-tables.c 2009-07-30 09:48:10.061383402 -0400 -@@ -48,7 +48,7 @@ - - struct usb_device_id usb_storage_usb_ids[] = { - # include "unusual_devs.h" -- { } /* Terminating entry */ -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */ - }; - EXPORT_SYMBOL_GPL(usb_storage_usb_ids); - -diff -urNp linux-2.6.30.4/drivers/uwb/uwb-debug.c linux-2.6.30.4/drivers/uwb/uwb-debug.c ---- linux-2.6.30.4/drivers/uwb/uwb-debug.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/uwb/uwb-debug.c 2009-07-30 09:48:10.061383402 -0400 -@@ -205,7 +205,7 @@ static ssize_t command_write(struct file - return ret < 0 ? ret : len; - } - --static struct file_operations command_fops = { -+static const struct file_operations command_fops = { - .open = command_open, - .write = command_write, - .read = NULL, -@@ -255,7 +255,7 @@ static int reservations_open(struct inod - return single_open(file, reservations_print, inode->i_private); - } - --static struct file_operations reservations_fops = { -+static const struct file_operations reservations_fops = { - .open = reservations_open, - .read = seq_read, - .llseek = seq_lseek, -@@ -283,7 +283,7 @@ static int drp_avail_open(struct inode * - return single_open(file, drp_avail_print, inode->i_private); - } - --static struct file_operations drp_avail_fops = { -+static const struct file_operations drp_avail_fops = { - .open = drp_avail_open, - .read = seq_read, - .llseek = seq_lseek, -diff -urNp linux-2.6.30.4/drivers/uwb/wlp/messages.c linux-2.6.30.4/drivers/uwb/wlp/messages.c ---- linux-2.6.30.4/drivers/uwb/wlp/messages.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/uwb/wlp/messages.c 2009-07-30 09:48:10.062348453 -0400 -@@ -903,7 +903,7 @@ int wlp_parse_f0(struct wlp *wlp, struct - size_t len = skb->len; - size_t used; - ssize_t result; -- struct wlp_nonce enonce, rnonce; -+ struct wlp_nonce enonce = {{0}}, rnonce = {{0}}; - enum wlp_assc_error assc_err; - char enonce_buf[WLP_WSS_NONCE_STRSIZE]; - char rnonce_buf[WLP_WSS_NONCE_STRSIZE]; -diff -urNp linux-2.6.30.4/drivers/video/fb_defio.c linux-2.6.30.4/drivers/video/fb_defio.c ---- linux-2.6.30.4/drivers/video/fb_defio.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/fb_defio.c 2009-07-30 09:48:10.062348453 -0400 -@@ -125,7 +125,7 @@ page_already_added: - return 0; - } - --static struct vm_operations_struct fb_deferred_io_vm_ops = { -+static const struct vm_operations_struct fb_deferred_io_vm_ops = { - .fault = fb_deferred_io_fault, - .page_mkwrite = fb_deferred_io_mkwrite, - }; -diff -urNp linux-2.6.30.4/drivers/video/fbmem.c linux-2.6.30.4/drivers/video/fbmem.c ---- linux-2.6.30.4/drivers/video/fbmem.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/fbmem.c 2009-07-30 09:48:10.062348453 -0400 -@@ -404,7 +404,7 @@ static void fb_do_show_logo(struct fb_in - image->dx += image->width + 8; - } - } else if (rotate == FB_ROTATE_UD) { -- for (x = 0; x < num && image->dx >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dx >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dx -= image->width + 8; - } -@@ -416,7 +416,7 @@ static void fb_do_show_logo(struct fb_in - image->dy += image->height + 8; - } - } else if (rotate == FB_ROTATE_CCW) { -- for (x = 0; x < num && image->dy >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dy >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dy -= image->height + 8; - } -@@ -1109,7 +1109,7 @@ static long do_fb_ioctl(struct fb_info * - return -EFAULT; - if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES) - return -EINVAL; -- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) -+ if (con2fb.framebuffer >= FB_MAX) - return -EINVAL; - if (!registered_fb[con2fb.framebuffer]) - request_module("fb%d", con2fb.framebuffer); -diff -urNp linux-2.6.30.4/drivers/video/fbmon.c linux-2.6.30.4/drivers/video/fbmon.c ---- linux-2.6.30.4/drivers/video/fbmon.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/fbmon.c 2009-07-30 09:48:10.063350135 -0400 -@@ -45,7 +45,7 @@ - #ifdef DEBUG - #define DPRINTK(fmt, args...) printk(fmt,## args) - #else --#define DPRINTK(fmt, args...) -+#define DPRINTK(fmt, args...) do {} while (0) - #endif - - #define FBMON_FIX_HEADER 1 -diff -urNp linux-2.6.30.4/drivers/video/i810/i810_accel.c linux-2.6.30.4/drivers/video/i810/i810_accel.c ---- linux-2.6.30.4/drivers/video/i810/i810_accel.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/i810/i810_accel.c 2009-07-30 09:48:10.063350135 -0400 -@@ -73,6 +73,7 @@ static inline int wait_for_space(struct - } - } - printk("ringbuffer lockup!!!\n"); -+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space); - i810_report_error(mmio); - par->dev_flags |= LOCKUP; - info->pixmap.scan_align = 1; -diff -urNp linux-2.6.30.4/drivers/video/i810/i810_main.c linux-2.6.30.4/drivers/video/i810/i810_main.c ---- linux-2.6.30.4/drivers/video/i810/i810_main.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/i810/i810_main.c 2009-07-30 09:48:10.064300485 -0400 -@@ -120,7 +120,7 @@ static struct pci_device_id i810fb_pci_t - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, -- { 0 }, -+ { 0, 0, 0, 0, 0, 0, 0 }, - }; - - static struct pci_driver i810fb_driver = { -diff -urNp linux-2.6.30.4/drivers/video/modedb.c linux-2.6.30.4/drivers/video/modedb.c ---- linux-2.6.30.4/drivers/video/modedb.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/modedb.c 2009-07-30 09:48:10.064300485 -0400 -@@ -38,232 +38,232 @@ static const struct fb_videomode modedb[ - { - /* 640x400 @ 70 Hz, 31.5 kHz hsync */ - NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 60 Hz, 31.5 kHz hsync */ - NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 56 Hz, 35.15 kHz hsync */ - NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */ - NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8, -- 0, FB_VMODE_INTERLACED -+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x400 @ 85 Hz, 37.86 kHz hsync */ - NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3, -- FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 72 Hz, 36.5 kHz hsync */ - NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 75 Hz, 37.50 kHz hsync */ - NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 60 Hz, 37.8 kHz hsync */ - NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 85 Hz, 43.27 kHz hsync */ - NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */ - NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10, -- 0, FB_VMODE_INTERLACED -+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 72 Hz, 48.0 kHz hsync */ - NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 60 Hz, 48.4 kHz hsync */ - NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 100 Hz, 53.01 kHz hsync */ - NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 60 Hz, 53.5 kHz hsync */ - NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 85 Hz, 55.84 kHz hsync */ - NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 70 Hz, 56.5 kHz hsync */ - NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */ - NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12, -- 0, FB_VMODE_INTERLACED -+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 100 Hz, 64.02 kHz hsync */ - NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 76 Hz, 62.5 kHz hsync */ - NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 70 Hz, 62.4 kHz hsync */ - NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */ - NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1400x1050 @ 60Hz, 63.9 kHz hsync */ - NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/ - NULL, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/ - NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 85 Hz, 70.24 kHz hsync */ - NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 78 Hz, 70.8 kHz hsync */ - NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */ - NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 60Hz, 75.00 kHz hsync */ - NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 84 Hz, 76.0 kHz hsync */ - NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */ - NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 100Hz, 80.21 kHz hsync */ - NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */ - NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */ - NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 100 Hz, 89.62 kHz hsync */ - NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */ - NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */ - NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */ - NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */ - NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */ - NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1800x1440 @ 64Hz, 96.15 kHz hsync */ - NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1800x1440 @ 70Hz, 104.52 kHz hsync */ - NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 512x384 @ 78 Hz, 31.50 kHz hsync */ - NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 512x384 @ 85 Hz, 34.38 kHz hsync */ - NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */ - NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */ - NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 320x240 @ 72 Hz, 36.5 kHz hsync */ - NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */ - NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 400x300 @ 60 Hz, 37.8 kHz hsync */ - NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 400x300 @ 72 Hz, 48.0 kHz hsync */ - NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */ - NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 60 Hz, 37.8 kHz hsync */ - NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 63 Hz, 39.6 kHz hsync */ - NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 72 Hz, 48.0 kHz hsync */ - NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */ - NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, -- FB_VMODE_NONINTERLACED -+ FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */ - NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */ - NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */ - NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, - }; - -diff -urNp linux-2.6.30.4/drivers/video/omap/dispc.c linux-2.6.30.4/drivers/video/omap/dispc.c ---- linux-2.6.30.4/drivers/video/omap/dispc.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/omap/dispc.c 2009-07-30 09:48:10.065250322 -0400 -@@ -1013,7 +1013,7 @@ static void mmap_user_close(struct vm_ar - atomic_dec(&dispc.map_count[plane]); - } - --static struct vm_operations_struct mmap_user_ops = { -+static const struct vm_operations_struct mmap_user_ops = { - .open = mmap_user_open, - .close = mmap_user_close, - }; -diff -urNp linux-2.6.30.4/drivers/video/uvesafb.c linux-2.6.30.4/drivers/video/uvesafb.c ---- linux-2.6.30.4/drivers/video/uvesafb.c 2009-07-24 17:47:51.000000000 -0400 -+++ linux-2.6.30.4/drivers/video/uvesafb.c 2009-07-30 09:48:10.065250322 -0400 -@@ -18,6 +18,7 @@ - #include - #include - #include -+#include - #include