From e760cb69238143ea60cc05a0ae03bea6e4508d22 Mon Sep 17 00:00:00 2001 From: Natanael Copa Date: Mon, 29 Jun 2009 14:19:53 +0000 Subject: core/linux-grsec-sources: removed we dont use linux-*-sources packages anymore --- core/linux-grsec-sources/.gitignore | 1 - .../0001-linux-2.6.28.5-ipgre-strict-binding.patch | 207 - ...linux-2.6.28.5-ipgre-optimize-hash-lookup.patch | 140 - core/linux-grsec-sources/APKBUILD | 39 - .../grsecurity-2.1.13-2.6.28.8-200903191958.patch | 37186 ------------------- .../linux-2.6.26.8-ipgre-strict-binding.diff | 124 - 6 files changed, 37697 deletions(-) delete mode 100644 core/linux-grsec-sources/.gitignore delete mode 100644 core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch delete mode 100644 core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch delete mode 100644 core/linux-grsec-sources/APKBUILD delete mode 100644 core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch delete mode 100644 core/linux-grsec-sources/linux-2.6.26.8-ipgre-strict-binding.diff diff --git a/core/linux-grsec-sources/.gitignore b/core/linux-grsec-sources/.gitignore deleted file mode 100644 index 201f43de6..000000000 --- a/core/linux-grsec-sources/.gitignore +++ /dev/null @@ -1 +0,0 @@ -grsecurity*.patch diff --git a/core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch b/core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch deleted file mode 100644 index fd0cfeb2a..000000000 --- a/core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch +++ /dev/null @@ -1,207 +0,0 @@ -From: Timo Teras -Date: Tue, 20 Jan 2009 01:22:12 +0000 (-0800) -Subject: gre: strict physical device binding -X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fdavem%2Fnet-next-2.6.git;a=commitdiff_plain;h=749c10f931923451a4c59b4435d182aa9ae27a4f;hp=57a574993d94671b495cdbe8aeb78b745abfe14f - -gre: strict physical device binding - -Check the device on receive path and allow otherwise identical devices -as long as the physical device differs. - -This is useful for NBMA tunnels, where you want to use different gre IP -for each public IP available via different physical devices. - -Signed-off-by: Timo Teras -Signed-off-by: David S. Miller ---- - -diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c -index 0101521..4a43739 100644 ---- a/net/ipv4/ip_gre.c -+++ b/net/ipv4/ip_gre.c -@@ -164,67 +164,113 @@ static DEFINE_RWLOCK(ipgre_lock); - - /* Given src, dst and key, find appropriate for input tunnel. */ - --static struct ip_tunnel * ipgre_tunnel_lookup(struct net *net, -+static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - __be32 remote, __be32 local, - __be32 key, __be16 gre_proto) - { -+ struct net *net = dev_net(dev); -+ int link = dev->ifindex; - unsigned h0 = HASH(remote); - unsigned h1 = HASH(key); -- struct ip_tunnel *t; -- struct ip_tunnel *t2 = NULL; -+ struct ip_tunnel *t, *sel[4] = { NULL, NULL, NULL, NULL }; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - int dev_type = (gre_proto == htons(ETH_P_TEB)) ? - ARPHRD_ETHER : ARPHRD_IPGRE; -+ int idx; - - for (t = ign->tunnels_r_l[h0^h1]; t; t = t->next) { -- if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -- } -+ if (local != t->parms.iph.saddr || -+ remote != t->parms.iph.daddr || -+ key != t->parms.i_key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - - for (t = ign->tunnels_r[h0^h1]; t; t = t->next) { -- if (remote == t->parms.iph.daddr) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -- } -+ if (remote != t->parms.iph.daddr || -+ key != t->parms.i_key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - - for (t = ign->tunnels_l[h1]; t; t = t->next) { -- if (local == t->parms.iph.saddr || -- (local == t->parms.iph.daddr && -- ipv4_is_multicast(local))) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -- } -+ if ((local != t->parms.iph.saddr && -+ (local != t->parms.iph.daddr || -+ !ipv4_is_multicast(local))) || -+ key != t->parms.i_key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - - for (t = ign->tunnels_wc[h1]; t; t = t->next) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -+ if (t->parms.i_key != key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - -- if (t2) -- return t2; -+ for (idx = 1; idx < ARRAY_SIZE(sel); idx++) -+ if (sel[idx] != NULL) -+ return sel[idx]; - -- if (ign->fb_tunnel_dev->flags&IFF_UP) -+ if (ign->fb_tunnel_dev->flags & IFF_UP) - return netdev_priv(ign->fb_tunnel_dev); -+ - return NULL; - } - -@@ -284,6 +330,7 @@ static struct ip_tunnel *ipgre_tunnel_find(struct net *net, - __be32 remote = parms->iph.daddr; - __be32 local = parms->iph.saddr; - __be32 key = parms->i_key; -+ int link = parms->link; - struct ip_tunnel *t, **tp; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - -@@ -291,6 +338,7 @@ static struct ip_tunnel *ipgre_tunnel_find(struct net *net, - if (local == t->parms.iph.saddr && - remote == t->parms.iph.daddr && - key == t->parms.i_key && -+ link == t->parms.link && - type == t->dev->type) - break; - -@@ -421,7 +469,7 @@ static void ipgre_err(struct sk_buff *skb, u32 info) - } - - read_lock(&ipgre_lock); -- t = ipgre_tunnel_lookup(dev_net(skb->dev), iph->daddr, iph->saddr, -+ t = ipgre_tunnel_lookup(skb->dev, iph->daddr, iph->saddr, - flags & GRE_KEY ? - *(((__be32 *)p) + (grehlen / 4) - 1) : 0, - p[1]); -@@ -518,7 +566,7 @@ static int ipgre_rcv(struct sk_buff *skb) - gre_proto = *(__be16 *)(h + 2); - - read_lock(&ipgre_lock); -- if ((tunnel = ipgre_tunnel_lookup(dev_net(skb->dev), -+ if ((tunnel = ipgre_tunnel_lookup(skb->dev, - iph->saddr, iph->daddr, key, - gre_proto))) { - struct net_device_stats *stats = &tunnel->dev->stats; diff --git a/core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch b/core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch deleted file mode 100644 index fbfef33b9..000000000 --- a/core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch +++ /dev/null @@ -1,140 +0,0 @@ -From: Timo Teras -Date: Tue, 27 Jan 2009 04:56:10 +0000 (-0800) -Subject: gre: optimize hash lookup -X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fdavem%2Fnet-next-2.6.git;a=commitdiff_plain;h=afcf12422ec8236dc8b9238fef7a475876eea8da;hp=3eacdf58c2c0b9507afedfc19108e98b992c31e4 - -gre: optimize hash lookup - -Instead of keeping candidate tunnel device from all categories, -keep only one candidate with best score. This optimizes stack -usage and speeds up exit code. - -Signed-off-by: Timo Teras -Signed-off-by: David S. Miller ---- - -diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c -index 4a43739..07a188a 100644 ---- a/net/ipv4/ip_gre.c -+++ b/net/ipv4/ip_gre.c -@@ -172,11 +172,11 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - int link = dev->ifindex; - unsigned h0 = HASH(remote); - unsigned h1 = HASH(key); -- struct ip_tunnel *t, *sel[4] = { NULL, NULL, NULL, NULL }; -+ struct ip_tunnel *t, *cand = NULL; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - int dev_type = (gre_proto == htons(ETH_P_TEB)) ? - ARPHRD_ETHER : ARPHRD_IPGRE; -- int idx; -+ int score, cand_score = 4; - - for (t = ign->tunnels_r_l[h0^h1]; t; t = t->next) { - if (local != t->parms.iph.saddr || -@@ -189,15 +189,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - - for (t = ign->tunnels_r[h0^h1]; t; t = t->next) { -@@ -210,15 +213,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - - for (t = ign->tunnels_l[h1]; t; t = t->next) { -@@ -233,15 +239,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - - for (t = ign->tunnels_wc[h1]; t; t = t->next) { -@@ -253,20 +262,22 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - -- for (idx = 1; idx < ARRAY_SIZE(sel); idx++) -- if (sel[idx] != NULL) -- return sel[idx]; -+ if (cand != NULL) -+ return cand; - - if (ign->fb_tunnel_dev->flags & IFF_UP) - return netdev_priv(ign->fb_tunnel_dev); diff --git a/core/linux-grsec-sources/APKBUILD b/core/linux-grsec-sources/APKBUILD deleted file mode 100644 index e1a5901bc..000000000 --- a/core/linux-grsec-sources/APKBUILD +++ /dev/null @@ -1,39 +0,0 @@ -# Maintainer: Natanael Copa -_suff=grsec -pkgname=linux-$_suff-sources -pkgver=2.6.28.9 -pkgdesc="Linux kernel sources with grsecurity patch" -_kernver=2.6.28 -_grsecver=2.1.13-$_kernver.8-200903191958 -pkgrel=0 -options="!strip" -license=GPL-2 -url=http://kernel.org -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 - http://www.grsecurity.net/test/grsecurity-$_grsecver.patch - 0001-linux-2.6.28.5-ipgre-strict-binding.patch - 0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch - " - -build() { - cd $srcdir/linux-$_kernver - if [ "$_kernver" != "$pkgver" ]; then - bunzip2 -c < ../patch-$pkgver.bz2 | patch -p1 || return 1 - fi - - for i in ../*.patch; do - msg "Applying $i..." - patch -p1 < $i || return 1 - done - - mkdir -p "$pkgdir/usr/src" - cd "$srcdir" - mv "linux-$_kernver" "$pkgdir/usr/src/linux-$pkgver-$_suff" -} - -md5sums="d351e44709c9810b85e29b877f50968a linux-2.6.28.tar.bz2 -27a43f76cf4b90db18df6d1c5e72789b patch-2.6.28.9.bz2 -e98fdd8e286579c61822ef264b56dee4 grsecurity-2.1.13-2.6.28.8-200903191958.patch -7673b4521283ad41434a18ca18b16ad8 0001-linux-2.6.28.5-ipgre-strict-binding.patch -8f405c738b150c532c46eaad5390cca2 0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch" diff --git a/core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch b/core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch deleted file mode 100644 index c4ec6365f..000000000 --- a/core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch +++ /dev/null @@ -1,37186 +0,0 @@ -diff -urNp linux-2.6.28.8/arch/alpha/include/asm/elf.h linux-2.6.28.8/arch/alpha/include/asm/elf.h ---- linux-2.6.28.8/arch/alpha/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/alpha/include/asm/kmap_types.h linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/alpha/include/asm/pgtable.h linux-2.6.28.8/arch/alpha/include/asm/pgtable.h ---- linux-2.6.28.8/arch/alpha/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/alpha/kernel/module.c linux-2.6.28.8/arch/alpha/kernel/module.c ---- linux-2.6.28.8/arch/alpha/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/alpha/kernel/osf_sys.c linux-2.6.28.8/arch/alpha/kernel/osf_sys.c ---- linux-2.6.28.8/arch/alpha/kernel/osf_sys.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/kernel/osf_sys.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1230,6 +1230,10 @@ 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) -@@ -1237,8 +1241,8 @@ 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-2.6.28.8/arch/alpha/kernel/ptrace.c linux-2.6.28.8/arch/alpha/kernel/ptrace.c ---- linux-2.6.28.8/arch/alpha/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/kernel/ptrace.c 2009-02-21 09:37:48.000000000 -0500 -@@ -266,6 +266,9 @@ long arch_ptrace(struct task_struct *chi - size_t copied; - long ret; - -+ if (gr_handle_ptrace(child, request)) -+ return -EPERM; -+ - switch (request) { - /* When I and D space are separate, these will need to be fixed. */ - case PTRACE_PEEKTEXT: /* read word at location addr. */ -diff -urNp linux-2.6.28.8/arch/alpha/mm/fault.c linux-2.6.28.8/arch/alpha/mm/fault.c ---- linux-2.6.28.8/arch/alpha/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/arm/include/asm/elf.h linux-2.6.28.8/arch/arm/include/asm/elf.h ---- linux-2.6.28.8/arch/arm/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/arm/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -99,7 +99,14 @@ 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-2.6.28.8/arch/arm/include/asm/kmap_types.h linux-2.6.28.8/arch/arm/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/arm/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/arm/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -18,6 +18,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/arm/mm/mmap.c linux-2.6.28.8/arch/arm/mm/mmap.c ---- linux-2.6.28.8/arch/arm/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/arm/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/avr32/include/asm/elf.h linux-2.6.28.8/arch/avr32/include/asm/elf.h ---- linux-2.6.28.8/arch/avr32/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/avr32/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/avr32/include/asm/kmap_types.h linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/avr32/mm/fault.c linux-2.6.28.8/arch/avr32/mm/fault.c ---- linux-2.6.28.8/arch/avr32/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/avr32/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/blackfin/include/asm/kmap_types.h linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/cris/include/asm/kmap_types.h linux-2.6.28.8/arch/cris/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/cris/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/cris/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c ---- linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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" - -diff -urNp linux-2.6.28.8/arch/ia64/ia32/ia32priv.h linux-2.6.28.8/arch/ia64/ia32/ia32priv.h ---- linux-2.6.28.8/arch/ia64/ia32/ia32priv.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/ia32/ia32priv.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/ia64/include/asm/elf.h linux-2.6.28.8/arch/ia64/include/asm/elf.h ---- linux-2.6.28.8/arch/ia64/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/ia64/include/asm/kmap_types.h linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/ia64/include/asm/pgtable.h linux-2.6.28.8/arch/ia64/include/asm/pgtable.h ---- linux-2.6.28.8/arch/ia64/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/ia64/kernel/module.c linux-2.6.28.8/arch/ia64/kernel/module.c ---- linux-2.6.28.8/arch/ia64/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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; - } -@@ -491,15 +490,39 @@ 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 -@@ -683,7 +706,14 @@ 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: -@@ -817,15 +847,15 @@ 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-2.6.28.8/arch/ia64/kernel/sys_ia64.c linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c ---- linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/ia64/mm/fault.c linux-2.6.28.8/arch/ia64/mm/fault.c ---- linux-2.6.28.8/arch/ia64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/ia64/mm/init.c linux-2.6.28.8/arch/ia64/mm/init.c ---- linux-2.6.28.8/arch/ia64/mm/init.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/mm/init.c 2009-02-21 09:37:48.000000000 -0500 -@@ -121,6 +121,19 @@ 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-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/mips/include/asm/elf.h linux-2.6.28.8/arch/mips/include/asm/elf.h ---- linux-2.6.28.8/arch/mips/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/include/asm/kmap_types.h linux-2.6.28.8/arch/mips/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/mips/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/include/asm/page.h linux-2.6.28.8/arch/mips/include/asm/page.h ---- linux-2.6.28.8/arch/mips/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500 -@@ -82,7 +82,7 @@ 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-2.6.28.8/arch/mips/include/asm/system.h linux-2.6.28.8/arch/mips/include/asm/system.h ---- linux-2.6.28.8/arch/mips/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c ---- linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c ---- linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/kernel/process.c linux-2.6.28.8/arch/mips/kernel/process.c ---- linux-2.6.28.8/arch/mips/kernel/process.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/process.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/kernel/syscall.c linux-2.6.28.8/arch/mips/kernel/syscall.c ---- linux-2.6.28.8/arch/mips/kernel/syscall.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/syscall.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/mips/mm/fault.c linux-2.6.28.8/arch/mips/mm/fault.c ---- linux-2.6.28.8/arch/mips/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/parisc/include/asm/elf.h linux-2.6.28.8/arch/parisc/include/asm/elf.h ---- linux-2.6.28.8/arch/parisc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -333,6 +333,13 @@ 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-2.6.28.8/arch/parisc/include/asm/kmap_types.h linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/parisc/include/asm/pgtable.h linux-2.6.28.8/arch/parisc/include/asm/pgtable.h ---- linux-2.6.28.8/arch/parisc/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -202,6 +202,17 @@ - #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-2.6.28.8/arch/parisc/kernel/module.c linux-2.6.28.8/arch/parisc/kernel/module.c ---- linux-2.6.28.8/arch/parisc/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -75,16 +75,38 @@ - - /* 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) -@@ -298,21 +320,21 @@ 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 = ALIGN(me->core_size, 16); -- me->arch.stub_offset = me->core_size; -- me->core_size += stubs * sizeof(struct stub_entry); -- -- me->init_size = ALIGN(me->init_size, 16); -- me->arch.init_stub_offset = me->init_size; -- me->init_size += init_stubs * sizeof(struct stub_entry); -+ 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->core_size_rx = ALIGN(me->core_size_rx, 16); -+ me->arch.stub_offset = me->core_size_rx; -+ me->core_size_rx += stubs * sizeof(struct stub_entry); -+ -+ me->init_size_rx = ALIGN(me->init_size_rx, 16); -+ me->arch.init_stub_offset = me->init_size_rx; -+ me->init_size_rx += init_stubs * sizeof(struct stub_entry); - - me->arch.got_max = gots; - me->arch.fdesc_max = fdescs; -@@ -332,7 +354,7 @@ 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; -@@ -350,7 +372,7 @@ 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); -@@ -368,7 +390,7 @@ 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 */ -@@ -388,12 +410,12 @@ static Elf_Addr get_stub(struct module * - if(init_section) { - i = me->arch.init_stub_count++; - BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max); -- stub = me->module_init + me->arch.init_stub_offset + -+ stub = me->module_init_rx + me->arch.init_stub_offset + - i * sizeof(struct stub_entry); - } else { - i = me->arch.stub_count++; - BUG_ON(me->arch.stub_count > me->arch.stub_max); -- stub = me->module_core + me->arch.stub_offset + -+ stub = me->module_core_rx + me->arch.stub_offset + - i * sizeof(struct stub_entry); - } - -@@ -761,7 +783,7 @@ 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-2.6.28.8/arch/parisc/kernel/sys_parisc.c linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c ---- linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/parisc/kernel/traps.c linux-2.6.28.8/arch/parisc/kernel/traps.c ---- linux-2.6.28.8/arch/parisc/kernel/traps.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/kernel/traps.c 2009-02-21 09:37:48.000000000 -0500 -@@ -731,9 +731,7 @@ void handle_interruption(int code, struc - - 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-2.6.28.8/arch/parisc/mm/fault.c linux-2.6.28.8/arch/parisc/mm/fault.c ---- linux-2.6.28.8/arch/parisc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 -+ - void do_page_fault(struct pt_regs *regs, unsigned long code, - unsigned long address) - { -@@ -165,8 +276,33 @@ 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-2.6.28.8/arch/powerpc/include/asm/elf.h linux-2.6.28.8/arch/powerpc/include/asm/elf.h ---- linux-2.6.28.8/arch/powerpc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -180,6 +180,18 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E - - #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 - * process or 64 bit, on either a 64 bit or 32 bit kernel. -diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/powerpc/include/asm/page_64.h linux-2.6.28.8/arch/powerpc/include/asm/page_64.h ---- linux-2.6.28.8/arch/powerpc/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/powerpc/include/asm/page.h linux-2.6.28.8/arch/powerpc/include/asm/page.h ---- linux-2.6.28.8/arch/powerpc/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500 -@@ -111,8 +111,9 @@ 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-2.6.28.8/arch/powerpc/kernel/module_32.c linux-2.6.28.8/arch/powerpc/kernel/module_32.c ---- linux-2.6.28.8/arch/powerpc/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -158,7 +158,7 @@ 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; - } - -@@ -199,11 +199,16 @@ 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-2.6.28.8/arch/powerpc/kernel/signal_32.c linux-2.6.28.8/arch/powerpc/kernel/signal_32.c ---- linux-2.6.28.8/arch/powerpc/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/powerpc/kernel/signal_64.c linux-2.6.28.8/arch/powerpc/kernel/signal_64.c ---- linux-2.6.28.8/arch/powerpc/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/powerpc/kernel/vdso.c linux-2.6.28.8/arch/powerpc/kernel/vdso.c ---- linux-2.6.28.8/arch/powerpc/kernel/vdso.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/vdso.c 2009-02-21 09:37:48.000000000 -0500 -@@ -212,7 +212,7 @@ 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 -@@ -229,7 +229,7 @@ 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-2.6.28.8/arch/powerpc/mm/fault.c linux-2.6.28.8/arch/powerpc/mm/fault.c ---- linux-2.6.28.8/arch/powerpc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -29,6 +29,10 @@ - #include - #include - #include -+#include -+#include -+#include -+#include - - #include - #include -@@ -62,6 +66,363 @@ 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 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. -@@ -132,7 +493,7 @@ 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 -@@ -331,6 +692,37 @@ 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-2.6.28.8/arch/powerpc/mm/mmap.c linux-2.6.28.8/arch/powerpc/mm/mmap.c ---- linux-2.6.28.8/arch/powerpc/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -75,10 +75,22 @@ 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-2.6.28.8/arch/s390/include/asm/kmap_types.h linux-2.6.28.8/arch/s390/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/s390/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/s390/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/s390/kernel/module.c linux-2.6.28.8/arch/s390/kernel/module.c ---- linux-2.6.28.8/arch/s390/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/s390/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 */ -@@ -316,7 +316,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - val = me->arch.plt_offset - me->arch.got_offset + - info->plt_offset + rela->r_addend; - else -- val = (Elf_Addr) me->module_core + -+ val = (Elf_Addr) me->module_core_rx + - me->arch.plt_offset + info->plt_offset + - rela->r_addend - loc; - if (r_type == R_390_PLT16DBL) -@@ -336,7 +336,7 @@ 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) -@@ -346,7 +346,7 @@ 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-2.6.28.8/arch/sh/include/asm/kmap_types.h linux-2.6.28.8/arch/sh/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/sh/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sh/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/sparc/include/asm/elf_32.h linux-2.6.28.8/arch/sparc/include/asm/elf_32.h ---- linux-2.6.28.8/arch/sparc/include/asm/elf_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/elf_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/sparc/include/asm/elf_64.h linux-2.6.28.8/arch/sparc/include/asm/elf_64.h ---- linux-2.6.28.8/arch/sparc/include/asm/elf_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/elf_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/sparc/include/asm/kmap_types.h linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h ---- linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h ---- linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/sparc/kernel/sys_sparc.c linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c ---- linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/sparc/Makefile linux-2.6.28.8/arch/sparc/Makefile ---- linux-2.6.28.8/arch/sparc/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -37,7 +37,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc - # Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-) - INIT_Y := $(patsubst %/, %/built-in.o, $(init-y)) - CORE_Y := $(core-y) --CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - CORE_Y := $(patsubst %/, %/built-in.o, $(CORE_Y)) - DRIVERS_Y := $(patsubst %/, %/built-in.o, $(drivers-y)) - NET_Y := $(patsubst %/, %/built-in.o, $(net-y)) -diff -urNp linux-2.6.28.8/arch/sparc/mm/fault.c linux-2.6.28.8/arch/sparc/mm/fault.c ---- linux-2.6.28.8/arch/sparc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 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-2.6.28.8/arch/sparc/mm/init.c linux-2.6.28.8/arch/sparc/mm/init.c ---- linux-2.6.28.8/arch/sparc/mm/init.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/mm/init.c 2009-02-21 09:37:48.000000000 -0500 -@@ -313,6 +313,9 @@ 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) { -@@ -338,17 +341,17 @@ 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-2.6.28.8/arch/sparc/mm/srmmu.c linux-2.6.28.8/arch/sparc/mm/srmmu.c ---- linux-2.6.28.8/arch/sparc/mm/srmmu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/mm/srmmu.c 2009-02-21 09:37:48.000000000 -0500 -@@ -2162,6 +2162,13 @@ 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-2.6.28.8/arch/sparc64/kernel/Makefile linux-2.6.28.8/arch/sparc64/kernel/Makefile ---- linux-2.6.28.8/arch/sparc64/kernel/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/kernel/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -3,7 +3,7 @@ - # - - EXTRA_AFLAGS := -ansi --EXTRA_CFLAGS := -Werror -+#EXTRA_CFLAGS := -Werror - - CFLAGS_REMOVE_ftrace.o = -pg - -diff -urNp linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c ---- linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c 2009-02-08 00:54:27.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -124,7 +124,7 @@ 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; -@@ -139,6 +139,10 @@ 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); -@@ -152,9 +156,9 @@ 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; - } - -@@ -174,8 +178,8 @@ 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; - } -@@ -215,7 +219,7 @@ 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; -@@ -378,6 +382,12 @@ 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 { -@@ -392,6 +402,12 @@ 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-2.6.28.8/arch/sparc64/mm/fault.c linux-2.6.28.8/arch/sparc64/mm/fault.c ---- linux-2.6.28.8/arch/sparc64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,9 @@ - #include - #include - #include -+#include -+#include -+#include - - #include - #include -@@ -224,6 +227,367 @@ cannot_handle: - unhandled_fault (address, current, 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 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; -@@ -265,8 +629,10 @@ asmlinkage void __kprobes do_sparc64_fau - goto intr_or_no_mm; - - if (test_thread_flag(TIF_32BIT)) { -- if (!(regs->tstate & TSTATE_PRIV)) -+ if (!(regs->tstate & TSTATE_PRIV)) { - regs->tpc &= 0xffffffff; -+ regs->tnpc &= 0xffffffff; -+ } - address &= 0xffffffff; - } - -@@ -283,6 +649,29 @@ 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-2.6.28.8/arch/sparc64/mm/Makefile linux-2.6.28.8/arch/sparc64/mm/Makefile ---- linux-2.6.28.8/arch/sparc64/mm/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/mm/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -2,7 +2,7 @@ - # - - EXTRA_AFLAGS := -ansi --EXTRA_CFLAGS := -Werror -+#EXTRA_CFLAGS := -Werror - - obj-y := ultra.o tlb.o tsb.o fault.o init.o generic.o - -diff -urNp linux-2.6.28.8/arch/um/include/asm/kmap_types.h linux-2.6.28.8/arch/um/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/um/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/um/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/um/include/asm/page.h linux-2.6.28.8/arch/um/include/asm/page.h ---- linux-2.6.28.8/arch/um/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/um/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/um/sys-i386/syscalls.c linux-2.6.28.8/arch/um/sys-i386/syscalls.c ---- linux-2.6.28.8/arch/um/sys-i386/syscalls.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/um/sys-i386/syscalls.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/bitops.h linux-2.6.28.8/arch/x86/boot/bitops.h ---- linux-2.6.28.8/arch/x86/boot/bitops.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/bitops.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/boot.h linux-2.6.28.8/arch/x86/boot/boot.h ---- linux-2.6.28.8/arch/x86/boot/boot.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/boot.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/compressed/head_32.S linux-2.6.28.8/arch/x86/boot/compressed/head_32.S ---- linux-2.6.28.8/arch/x86/boot/compressed/head_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/compressed/head_32.S 2009-03-07 10:28:24.000000000 -0500 -@@ -70,7 +70,7 @@ 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 */ -@@ -80,8 +80,8 @@ 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 -@@ -105,7 +105,7 @@ 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-2.6.28.8/arch/x86/boot/compressed/misc.c linux-2.6.28.8/arch/x86/boot/compressed/misc.c ---- linux-2.6.28.8/arch/x86/boot/compressed/misc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/compressed/misc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -373,7 +373,7 @@ 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 -@@ -425,7 +425,7 @@ 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-2.6.28.8/arch/x86/boot/compressed/relocs.c linux-2.6.28.8/arch/x86/boot/compressed/relocs.c ---- linux-2.6.28.8/arch/x86/boot/compressed/relocs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/compressed/relocs.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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") && strncmp(sym_name(sym_strtab, sym), "__per_cpu_", 10)) -+ 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_PC32) { - /* PC relative relocations don't need to be adjusted */ - } -@@ -631,6 +692,7 @@ 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-2.6.28.8/arch/x86/boot/cpucheck.c linux-2.6.28.8/arch/x86/boot/cpucheck.c ---- linux-2.6.28.8/arch/x86/boot/cpucheck.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/cpucheck.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/edd.c linux-2.6.28.8/arch/x86/boot/edd.c ---- linux-2.6.28.8/arch/x86/boot/edd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/edd.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/main.c linux-2.6.28.8/arch/x86/boot/main.c ---- linux-2.6.28.8/arch/x86/boot/main.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/main.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/mca.c linux-2.6.28.8/arch/x86/boot/mca.c ---- linux-2.6.28.8/arch/x86/boot/mca.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/mca.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/memory.c linux-2.6.28.8/arch/x86/boot/memory.c ---- linux-2.6.28.8/arch/x86/boot/memory.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/memory.c 2009-02-21 09:37:48.000000000 -0500 -@@ -30,7 +30,7 @@ static int detect_memory_e820(void) - /* Important: %edx is clobbered by some BIOSes, - so it must be either used for the error output - or explicitly marked clobbered. */ -- asm("int $0x15; setc %0" -+ asm volatile("int $0x15; setc %0" - : "=d" (err), "+b" (next), "=a" (id), "+c" (size), - "=m" (*desc) - : "D" (desc), "d" (SMAP), "a" (0xe820)); -@@ -65,7 +65,7 @@ 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) -@@ -95,7 +95,7 @@ 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-2.6.28.8/arch/x86/boot/video.c linux-2.6.28.8/arch/x86/boot/video.c ---- linux-2.6.28.8/arch/x86/boot/video.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/video.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/boot/video-vesa.c linux-2.6.28.8/arch/x86/boot/video-vesa.c ---- linux-2.6.28.8/arch/x86/boot/video-vesa.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/video-vesa.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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"); -@@ -284,7 +285,7 @@ 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-2.6.28.8/arch/x86/boot/video-vga.c linux-2.6.28.8/arch/x86/boot/video-vga.c ---- linux-2.6.28.8/arch/x86/boot/video-vga.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/video-vga.c 2009-02-21 09:37:48.000000000 -0500 -@@ -225,7 +225,7 @@ static int vga_probe(void) - }; - u8 vga_flag; - -- asm(INT10 -+ asm volatile(INT10 - : "=b" (ega_bx) - : "a" (0x1200), "b" (0x10) /* Check EGA/VGA */ - : "ecx", "edx", "esi", "edi"); -@@ -237,7 +237,7 @@ 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-2.6.28.8/arch/x86/boot/voyager.c linux-2.6.28.8/arch/x86/boot/voyager.c ---- linux-2.6.28.8/arch/x86/boot/voyager.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/voyager.c 2009-02-21 09:37:48.000000000 -0500 -@@ -23,7 +23,7 @@ int query_voyager(void) - - data_ptr[0] = 0xff; /* Flag on config not found(?) */ - -- asm("pushw %%es ; " -+ asm volatile("pushw %%es ; " - "int $0x15 ; " - "setc %0 ; " - "movw %%es, %1 ; " -diff -urNp linux-2.6.28.8/arch/x86/ia32/ia32_signal.c linux-2.6.28.8/arch/x86/ia32/ia32_signal.c ---- linux-2.6.28.8/arch/x86/ia32/ia32_signal.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/ia32/ia32_signal.c 2009-02-21 09:37:48.000000000 -0500 -@@ -518,6 +518,7 @@ int ia32_setup_rt_frame(int sig, struct - __NR_ia32_rt_sigreturn, - 0x80cd, - 0, -+ 0 - }; - - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); -diff -urNp linux-2.6.28.8/arch/x86/include/asm/alternative.h linux-2.6.28.8/arch/x86/include/asm/alternative.h ---- linux-2.6.28.8/arch/x86/include/asm/alternative.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/alternative.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/atomic_32.h linux-2.6.28.8/arch/x86/include/asm/atomic_32.h ---- linux-2.6.28.8/arch/x86/include/asm/atomic_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/atomic_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -47,7 +47,29 @@ typedef struct { - */ - 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_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -61,7 +83,15 @@ 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)); - } -@@ -79,7 +109,16 @@ 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; -@@ -93,7 +132,18 @@ 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)); - } - -@@ -105,7 +155,18 @@ 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)); - } - -@@ -121,7 +182,19 @@ 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; -@@ -139,7 +212,19 @@ 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; -@@ -158,7 +243,16 @@ 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; -@@ -181,7 +275,15 @@ 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; -diff -urNp linux-2.6.28.8/arch/x86/include/asm/atomic_64.h linux-2.6.28.8/arch/x86/include/asm/atomic_64.h ---- linux-2.6.28.8/arch/x86/include/asm/atomic_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/atomic_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -48,7 +48,29 @@ typedef struct { - */ - 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_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "=m" (v->counter) - : "ir" (i), "m" (v->counter)); - } -@@ -62,7 +84,15 @@ 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)); - } -@@ -80,7 +110,16 @@ 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; -@@ -94,7 +133,19 @@ 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)); - } -@@ -107,7 +158,19 @@ 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)); - } -@@ -124,7 +187,20 @@ 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; -@@ -142,7 +218,20 @@ 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; -@@ -161,7 +250,16 @@ 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; -@@ -177,7 +275,15 @@ 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; -@@ -226,7 +332,15 @@ typedef struct { - */ - 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)); - } -@@ -240,7 +354,15 @@ 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)); - } -@@ -258,7 +380,16 @@ 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; -@@ -272,7 +403,19 @@ 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)); - } -@@ -285,7 +428,19 @@ 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)); - } -@@ -302,7 +457,20 @@ 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; -@@ -320,7 +488,20 @@ 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; -@@ -339,7 +520,16 @@ 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; -@@ -355,7 +545,15 @@ 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; -diff -urNp linux-2.6.28.8/arch/x86/include/asm/boot.h linux-2.6.28.8/arch/x86/include/asm/boot.h ---- linux-2.6.28.8/arch/x86/include/asm/boot.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/boot.h 2009-02-21 09:37:48.000000000 -0500 -@@ -11,10 +11,15 @@ - #define ASK_VGA 0xfffd /* ask for it at bootup */ - - /* 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_X86_64 - #define BOOT_HEAP_SIZE 0x7000 - #define BOOT_STACK_SIZE 0x4000 -diff -urNp linux-2.6.28.8/arch/x86/include/asm/cache.h linux-2.6.28.8/arch/x86/include/asm/cache.h ---- linux-2.6.28.8/arch/x86/include/asm/cache.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/cache.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/checksum_32.h linux-2.6.28.8/arch/x86/include/asm/checksum_32.h ---- linux-2.6.28.8/arch/x86/include/asm/checksum_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/checksum_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/cpufeature.h linux-2.6.28.8/arch/x86/include/asm/cpufeature.h ---- linux-2.6.28.8/arch/x86/include/asm/cpufeature.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/cpufeature.h 2009-02-21 09:37:48.000000000 -0500 -@@ -80,7 +80,6 @@ - #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ - #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */ - #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */ --#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */ - #define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */ - #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */ - #define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/desc.h linux-2.6.28.8/arch/x86/include/asm/desc.h ---- linux-2.6.28.8/arch/x86/include/asm/desc.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/desc.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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(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 -@@ -115,19 +112,48 @@ 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); -@@ -139,7 +165,17 @@ 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, -@@ -211,7 +247,19 @@ 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) -@@ -246,8 +294,19 @@ 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) \ -@@ -381,6 +440,18 @@ 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-2.6.28.8/arch/x86/include/asm/e820.h linux-2.6.28.8/arch/x86/include/asm/e820.h ---- linux-2.6.28.8/arch/x86/include/asm/e820.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/e820.h 2009-02-21 09:37:48.000000000 -0500 -@@ -134,7 +134,7 @@ 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-2.6.28.8/arch/x86/include/asm/elf.h linux-2.6.28.8/arch/x86/include/asm/elf.h ---- linux-2.6.28.8/arch/x86/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -252,7 +252,25 @@ 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, -@@ -304,8 +322,7 @@ 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 -@@ -316,7 +333,7 @@ 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)) -@@ -330,7 +347,4 @@ 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-2.6.28.8/arch/x86/include/asm/futex.h linux-2.6.28.8/arch/x86/include/asm/futex.h ---- linux-2.6.28.8/arch/x86/include/asm/futex.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/futex.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/i387.h linux-2.6.28.8/arch/x86/include/asm/i387.h ---- linux-2.6.28.8/arch/x86/include/asm/i387.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/i387.h 2009-02-21 09:37:48.000000000 -0500 -@@ -197,13 +197,8 @@ 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-2.6.28.8/arch/x86/include/asm/io_64.h linux-2.6.28.8/arch/x86/include/asm/io_64.h ---- linux-2.6.28.8/arch/x86/include/asm/io_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/io_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -158,6 +158,17 @@ static inline void *phys_to_virt(unsigne - } - #endif - -+#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; -+} -+ - /* - * Change "struct page" to physical address. - */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/irqflags.h linux-2.6.28.8/arch/x86/include/asm/irqflags.h ---- linux-2.6.28.8/arch/x86/include/asm/irqflags.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/irqflags.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/kmap_types.h linux-2.6.28.8/arch/x86/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/x86/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/kvm_host.h linux-2.6.28.8/arch/x86/include/asm/kvm_host.h ---- linux-2.6.28.8/arch/x86/include/asm/kvm_host.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/kvm_host.h 2009-02-21 09:37:48.000000000 -0500 -@@ -479,7 +479,7 @@ struct kvm_x86_ops { - int (*get_tdp_level)(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-2.6.28.8/arch/x86/include/asm/linkage.h linux-2.6.28.8/arch/x86/include/asm/linkage.h ---- linux-2.6.28.8/arch/x86/include/asm/linkage.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/linkage.h 2009-02-21 09:37:48.000000000 -0500 -@@ -7,6 +7,11 @@ - #ifdef CONFIG_X86_64 - #define __ALIGN .p2align 4,,15 - #define __ALIGN_STR ".p2align 4,,15" -+#else -+#ifdef CONFIG_X86_ALIGNMENT_16 -+#define __ALIGN .align 16,0x90 -+#define __ALIGN_STR ".align 16,0x90" -+#endif - #endif - - #ifdef CONFIG_X86_32 -@@ -52,10 +57,5 @@ - - #endif - --#ifdef CONFIG_X86_ALIGNMENT_16 --#define __ALIGN .align 16,0x90 --#define __ALIGN_STR ".align 16,0x90" --#endif -- - #endif /* _ASM_X86_LINKAGE_H */ - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/local.h linux-2.6.28.8/arch/x86/include/asm/local.h ---- linux-2.6.28.8/arch/x86/include/asm/local.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/local.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/mach-default/apm.h linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h ---- linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/mman.h linux-2.6.28.8/arch/x86/include/asm/mman.h ---- linux-2.6.28.8/arch/x86/include/asm/mman.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mman.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/mmu_context_32.h linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h ---- linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -33,6 +33,22 @@ static inline void switch_mm(struct mm_s - */ - if (unlikely(prev->context.ldt != next->context.ldt)) - load_LDT_nolock(&next->context); -+ -+#if 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_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)) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } - #ifdef CONFIG_SMP - else { -@@ -45,6 +61,19 @@ static inline void switch_mm(struct mm_s - */ - load_cr3(next->pgd); - load_LDT_nolock(&next->context); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!nx_enabled) -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+#endif -+ -+#if 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-2.6.28.8/arch/x86/include/asm/mmu.h linux-2.6.28.8/arch/x86/include/asm/mmu.h ---- linux-2.6.28.8/arch/x86/include/asm/mmu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mmu.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/module.h linux-2.6.28.8/arch/x86/include/asm/module.h ---- linux-2.6.28.8/arch/x86/include/asm/module.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/module.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/page_32.h linux-2.6.28.8/arch/x86/include/asm/page_32.h ---- linux-2.6.28.8/arch/x86/include/asm/page_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/page_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -13,6 +13,23 @@ - */ - #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-2.6.28.8/arch/x86/include/asm/page_64.h linux-2.6.28.8/arch/x86/include/asm/page_64.h ---- linux-2.6.28.8/arch/x86/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -49,6 +49,9 @@ - #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 -@@ -101,5 +104,6 @@ extern void init_extra_mapping_wb(unsign - #define pfn_valid(pfn) ((pfn) < max_pfn) - #endif - -+#define nx_enabled (1) - - #endif /* _ASM_X86_PAGE_64_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/paravirt.h linux-2.6.28.8/arch/x86/include/asm/paravirt.h ---- linux-2.6.28.8/arch/x86/include/asm/paravirt.h 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/paravirt.h 2009-03-07 10:29:51.000000000 -0500 -@@ -1557,7 +1557,7 @@ static inline unsigned long __raw_local_ - #define PV_RESTORE_REGS popl %edx; popl %ecx; popl %edi; popl %eax - #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-2.6.28.8/arch/x86/include/asm/pda.h linux-2.6.28.8/arch/x86/include/asm/pda.h ---- linux-2.6.28.8/arch/x86/include/asm/pda.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pda.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,11 +16,9 @@ struct x8664_pda { - unsigned long oldrsp; /* 24 user rsp for system call */ - int irqcount; /* 32 Irq nesting counter. Starts -1 */ - unsigned int cpunumber; /* 36 Logical CPU number */ --#ifdef CONFIG_CC_STACKPROTECTOR - unsigned long stack_canary; /* 40 stack canary value */ - /* gcc-ABI: this canary MUST be at - offset 40!!! */ --#endif - char *irqstackptr; - short nodenumber; /* number of current node (32k max) */ - short in_bootmem; /* pda lives in bootmem */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/percpu.h linux-2.6.28.8/arch/x86/include/asm/percpu.h ---- linux-2.6.28.8/arch/x86/include/asm/percpu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/percpu.h 2009-02-21 09:37:48.000000000 -0500 -@@ -93,6 +93,12 @@ DECLARE_PER_CPU(struct x8664_pda, pda); - - #define __my_cpu_offset x86_read_percpu(this_cpu_off) - -+#include -+#include -+#define __per_cpu_offset __per_cpu_offset -+extern unsigned long __per_cpu_offset[NR_CPUS]; -+#define per_cpu_offset(x) (__per_cpu_offset[x] + (unsigned long)__per_cpu_start) -+ - /* fs segment starts at (positive) offset == __per_cpu_offset[cpu] */ - #define __percpu_seg "%%fs:" - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgalloc.h linux-2.6.28.8/arch/x86/include/asm/pgalloc.h ---- linux-2.6.28.8/arch/x86/include/asm/pgalloc.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgalloc.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/pgtable-2level.h linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/pgtable_32.h linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -25,8 +25,6 @@ - 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); -@@ -46,6 +44,11 @@ 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 -+ - #define PGDIR_SIZE (1UL << PGDIR_SHIFT) - #define PGDIR_MASK (~(PGDIR_SIZE - 1)) - -@@ -83,7 +86,7 @@ extern void set_pmd_pfn(unsigned long, u - #undef TEST_ACCESS_OK - - /* The boot page tables (all created as a single array) */ --extern unsigned long pg0[]; -+extern pte_t pg0[]; - - #define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE)) - -@@ -175,6 +178,9 @@ 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-2.6.28.8/arch/x86/include/asm/pgtable-3level.h linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h 2009-02-21 09:37:48.000000000 -0500 -@@ -70,12 +70,36 @@ 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-2.6.28.8/arch/x86/include/asm/pgtable_64.h linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,9 +15,12 @@ - - 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 -@@ -106,7 +109,19 @@ 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) -@@ -158,17 +173,17 @@ static inline void native_pgd_clear(pgd_ - - static inline int pgd_bad(pgd_t pgd) - { -- return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; -+ return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pud_bad(pud_t pud) - { -- return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; -+ return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pmd_bad(pmd_t pmd) - { -- return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; -+ return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - #define pte_none(x) (!pte_val((x))) -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable.h linux-2.6.28.8/arch/x86/include/asm/pgtable.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -14,12 +14,11 @@ - #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 */ - - #define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT) -@@ -31,7 +30,6 @@ - #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) -@@ -43,7 +41,7 @@ - #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 - - /* If _PAGE_PRESENT is clear, we use these: */ -@@ -83,6 +81,9 @@ - #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) -@@ -94,7 +95,7 @@ - #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_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) -@@ -153,7 +154,7 @@ - * 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 PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ - #define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ - #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ - #endif -@@ -170,10 +171,17 @@ extern unsigned long empty_zero_page[PAG - extern spinlock_t pgd_lock; - extern struct list_head pgd_list; - -+extern pteval_t __supported_pte_mask; -+ - /* - * 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; -@@ -242,9 +250,29 @@ static inline pte_t pte_wrprotect(pte_t - return __pte(pte_val(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(pte_val(pte) & ~_PAGE_NX); -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return __pte(pte_val(pte) & ~(pteval_t)_PAGE_NX); -+ else -+#endif -+ return __pte(pte_val(pte) | _PAGE_USER); -+} -+ -+static inline pte_t pte_exprotect(pte_t pte) -+{ -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return __pte(pte_val(pte) | _PAGE_NX); -+ else -+#endif -+ return __pte(pte_val(pte) & ~_PAGE_USER); - } - - static inline pte_t pte_mkdirty(pte_t pte) -@@ -287,8 +315,6 @@ static inline pte_t pte_mkspecial(pte_t - return __pte(pte_val(pte) | _PAGE_SPECIAL); - } - --extern pteval_t __supported_pte_mask; -- - static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) - { - return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) | -@@ -552,7 +578,19 @@ 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-2.6.28.8/arch/x86/include/asm/processor.h linux-2.6.28.8/arch/x86/include/asm/processor.h ---- linux-2.6.28.8/arch/x86/include/asm/processor.h 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/processor.h 2009-03-07 10:29:51.000000000 -0500 -@@ -271,7 +271,7 @@ struct tss_struct { - - } ____cacheline_aligned; - --DECLARE_PER_CPU(struct tss_struct, init_tss); -+extern struct tss_struct init_tss[NR_CPUS]; - - /* - * Save the original ist values for checking stack pointers during debugging -@@ -822,11 +822,20 @@ static inline void spin_lock_prefetch(co - * User space process size: 3GB (default). - */ - #define TASK_SIZE PAGE_OFFSET -+ -+#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, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .vm86_info = NULL, \ - .sysenter_cs = __KERNEL_CS, \ - .io_bitmap_ptr = NULL, \ -@@ -841,7 +850,7 @@ 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, \ -@@ -852,11 +861,7 @@ 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. -@@ -871,7 +876,7 @@ 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; \ - }) - -@@ -887,7 +892,7 @@ 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_SIZE64) -@@ -924,6 +929,10 @@ 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-2.6.28.8/arch/x86/include/asm/ptrace.h linux-2.6.28.8/arch/x86/include/asm/ptrace.h ---- linux-2.6.28.8/arch/x86/include/asm/ptrace.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/ptrace.h 2009-02-21 09:37:48.000000000 -0500 -@@ -187,28 +187,29 @@ 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-2.6.28.8/arch/x86/include/asm/reboot.h linux-2.6.28.8/arch/x86/include/asm/reboot.h ---- linux-2.6.28.8/arch/x86/include/asm/reboot.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/reboot.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,6 @@ 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); - - #endif /* _ASM_X86_REBOOT_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/rwsem.h linux-2.6.28.8/arch/x86/include/asm/rwsem.h ---- linux-2.6.28.8/arch/x86/include/asm/rwsem.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/rwsem.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/include/asm/segment.h linux-2.6.28.8/arch/x86/include/asm/segment.h ---- linux-2.6.28.8/arch/x86/include/asm/segment.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/segment.h 2009-02-21 09:37:48.000000000 -0500 -@@ -88,13 +88,19 @@ - #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 - #define __KERNEL_PERCPU 0 - #endif - -+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE + 16) -+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8) -+ -+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE + 17) -+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8) -+ - #define GDT_ENTRY_DOUBLEFAULT_TSS 31 - - /* -@@ -132,7 +138,7 @@ - */ - - /* 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-2.6.28.8/arch/x86/include/asm/spinlock.h linux-2.6.28.8/arch/x86/include/asm/spinlock.h ---- linux-2.6.28.8/arch/x86/include/asm/spinlock.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/spinlock.h 2009-02-21 09:37:48.000000000 -0500 -@@ -310,18 +310,50 @@ 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"); - } - -@@ -348,12 +380,45 @@ 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-2.6.28.8/arch/x86/include/asm/system.h linux-2.6.28.8/arch/x86/include/asm/system.h ---- linux-2.6.28.8/arch/x86/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500 -@@ -95,6 +95,8 @@ do { \ - ".globl thread_return\n" \ - "thread_return:\n\t" \ - "movq %%gs:%P[pda_pcurrent],%%rsi\n\t" \ -+ "movq %P[task_canary](%%rsi),%%r8\n\t" \ -+ "movq %%r8,%%gs:%P[pda_canary]\n\t" \ - "movq %P[thread_info](%%rsi),%%r8\n\t" \ - LOCK_PREFIX "btr %[tif_fork],%P[ti_flags](%%r8)\n\t" \ - "movq %%rax,%%rdi\n\t" \ -@@ -106,7 +108,9 @@ do { \ - [ti_flags] "i" (offsetof(struct thread_info, flags)), \ - [tif_fork] "i" (TIF_FORK), \ - [thread_info] "i" (offsetof(struct task_struct, stack)), \ -- [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)) \ -+ [task_canary] "i" (offsetof(struct task_struct, stack_canary)), \ -+ [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)), \ -+ [pda_canary] "i" (offsetof(struct x8664_pda, stack_canary))\ - : "memory", "cc" __EXTRA_CLOBBER) - #endif - -@@ -169,7 +173,7 @@ 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) -@@ -295,6 +299,21 @@ 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(); \ -+ cr0 = read_cr0(); \ -+ write_cr0(cr0 & ~X86_CR0_WP); \ -+} while (0) -+ -+#define pax_close_kernel(cr0) \ -+do { \ -+ typecheck(unsigned long, cr0); \ -+ write_cr0(cr0); \ -+ preempt_enable_no_resched(); \ -+} while (0) -+ - #endif /* __KERNEL__ */ - - static inline void clflush(volatile void *__p) -@@ -309,7 +328,7 @@ 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-2.6.28.8/arch/x86/include/asm/uaccess_64.h linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h ---- linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -10,6 +10,8 @@ - #include - #include - -+#define set_fs(x) (current_thread_info()->addr_limit = (x)) -+ - /* - * Copy To/From Userspace - */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/uaccess.h linux-2.6.28.8/arch/x86/include/asm/uaccess.h ---- linux-2.6.28.8/arch/x86/include/asm/uaccess.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/uaccess.h 2009-02-21 09:37:48.000000000 -0500 -@@ -10,6 +10,7 @@ - #include - #include - #include -+#include - - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 -@@ -29,7 +30,12 @@ - - #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) - -@@ -186,9 +192,12 @@ extern int __get_user_bad(void); - - #ifdef CONFIG_X86_32 - #define __put_user_u64(x, addr, err) \ -- asm volatile("1: movl %%eax,0(%2)\n" \ -- "2: movl %%edx,4(%2)\n" \ -+ asm volatile(" movw %w5,%%ds\n" \ -+ "1: movl %%eax,%%ds:0(%2)\n" \ -+ "2: movl %%edx,%%ds:4(%2)\n" \ - "3:\n" \ -+ " pushl %%ss\n" \ -+ " popl %%ds\n" \ - ".section .fixup,\"ax\"\n" \ - "4: movl %3,%0\n" \ - " jmp 3b\n" \ -@@ -196,7 +205,8 @@ extern int __get_user_bad(void); - _ASM_EXTABLE(1b, 4b) \ - _ASM_EXTABLE(2b, 4b) \ - : "=r" (err) \ -- : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err)) -+ : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err), \ -+ "r"(__USER_DS)) - - #define __put_user_x8(x, ptr, __ret_pu) \ - asm volatile("call __put_user_8" : "=a" (__ret_pu) \ -@@ -336,6 +346,22 @@ do { \ - } \ - } while (0) - -+#ifdef CONFIG_X86_32 -+#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -+ asm volatile(" movw %w5,%%ds\n" \ -+ "1: mov"itype" %%ds:%2,%"rtype"1\n" \ -+ "2:\n" \ -+ " pushl %%ss\n" \ -+ " popl %%ds\n" \ -+ ".section .fixup,\"ax\"\n" \ -+ "3: movl %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"(__USER_DS)) -+#else - #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ - asm volatile("1: mov"itype" %2,%"rtype"1\n" \ - "2:\n" \ -@@ -347,6 +373,7 @@ do { \ - _ASM_EXTABLE(1b, 3b) \ - : "=r" (err), ltype(x) \ - : "m" (__m(addr)), "i" (errret), "0" (err)) -+#endif - - #define __put_user_nocheck(x, ptr, size) \ - ({ \ -@@ -373,6 +400,22 @@ struct __large_struct { unsigned long bu - * we do not write to any memory gcc knows about, so there are no - * aliasing issues. - */ -+#ifdef CONFIG_X86_32 -+#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -+ asm volatile(" movw %w5,%%ds\n" \ -+ "1: mov"itype" %"rtype"1,%%ds:%2\n" \ -+ "2:\n" \ -+ " pushl %%ss\n" \ -+ " popl %%ds\n" \ -+ ".section .fixup,\"ax\"\n" \ -+ "3: movl %3,%0\n" \ -+ " jmp 2b\n" \ -+ ".previous\n" \ -+ _ASM_EXTABLE(1b, 3b) \ -+ : "=r"(err) \ -+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err),\ -+ "r"(__USER_DS)) -+#else - #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ - asm volatile("1: mov"itype" %"rtype"1,%2\n" \ - "2:\n" \ -@@ -383,6 +426,7 @@ struct __large_struct { unsigned long bu - _ASM_EXTABLE(1b, 3b) \ - : "=r"(err) \ - : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err)) -+#endif - /** - * __get_user: - Get a simple variable from user space, with less checking. - * @x: Variable to store result. -@@ -443,6 +487,7 @@ 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-2.6.28.8/arch/x86/Kconfig linux-2.6.28.8/arch/x86/Kconfig ---- linux-2.6.28.8/arch/x86/Kconfig 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Kconfig 2009-02-21 09:37:48.000000000 -0500 -@@ -935,7 +935,7 @@ 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 -@@ -1337,8 +1337,7 @@ 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 "0x200000" - help - This gives the physical address where the kernel is loaded. - -@@ -1430,9 +1429,9 @@ 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 (X86_32 || IA32_EMULATION) && !PAX_NOEXEC - help - Map the 32-bit VDSO to the predictable old-style address too. - ---help--- -diff -urNp linux-2.6.28.8/arch/x86/Kconfig.cpu linux-2.6.28.8/arch/x86/Kconfig.cpu ---- linux-2.6.28.8/arch/x86/Kconfig.cpu 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Kconfig.cpu 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/Kconfig.debug linux-2.6.28.8/arch/x86/Kconfig.debug ---- linux-2.6.28.8/arch/x86/Kconfig.debug 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Kconfig.debug 2009-02-21 09:37:48.000000000 -0500 -@@ -107,7 +107,7 @@ 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-2.6.28.8/arch/x86/kernel/acpi/boot.c linux-2.6.28.8/arch/x86/kernel/acpi/boot.c ---- linux-2.6.28.8/arch/x86/kernel/acpi/boot.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/boot.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1645,7 +1645,7 @@ static struct dmi_system_id __initdata a - DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), - }, - }, -- {} -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - /* -diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S ---- linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/acpi/sleep.c linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c ---- linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c 2009-02-21 09:37:48.000000000 -0500 -@@ -37,6 +37,10 @@ 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 +103,18 @@ 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 -+ - #endif - initial_code = (unsigned long)wakeup_long64; - saved_magic = 0x123456789abcdef0; -diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S ---- linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/alternative.c linux-2.6.28.8/arch/x86/kernel/alternative.c ---- linux-2.6.28.8/arch/x86/kernel/alternative.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/alternative.c 2009-02-21 09:37:48.000000000 -0500 -@@ -393,7 +393,7 @@ 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); - -@@ -473,11 +473,26 @@ 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 -@@ -498,33 +513,27 @@ void *text_poke_early(void *addr, const - */ - void *__kprobes text_poke(void *addr, const void *opcode, size_t len) - { -- unsigned long flags; -- char *vaddr; -- int nr_pages = 2; -+ 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]); -- if (!pages[1]) -- nr_pages = 1; -- vaddr = vmap(pages, nr_pages, VM_MAP, PAGE_KERNEL); -- BUG_ON(!vaddr); -- local_irq_save(flags); -- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len); -- local_irq_restore(flags); -- vunmap(vaddr); -- 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]); -+ BUG_ON((vaddr)[i] != ((unsigned char *)opcode)[i]); - return addr; - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/apm_32.c linux-2.6.28.8/arch/x86/kernel/apm_32.c ---- linux-2.6.28.8/arch/x86/kernel/apm_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/apm_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -407,7 +407,7 @@ 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 */ - -@@ -602,19 +602,42 @@ static u8 apm_bios_call(u32 func, u32 eb - struct desc_struct save_desc_40; - struct desc_struct *gdt; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - cpus = apm_save_cpus(); - - cpu = get_cpu(); - 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(func, ebx_in, ecx_in, eax, ebx, ecx, edx, 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(); - apm_restore_cpus(cpus); - -@@ -645,19 +668,42 @@ static u8 apm_bios_call_simple(u32 func, - struct desc_struct save_desc_40; - struct desc_struct *gdt; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - cpus = apm_save_cpus(); - - cpu = get_cpu(); - 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(func, ebx_in, ecx_in, 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(); - apm_restore_cpus(cpus); - return error; -@@ -929,7 +975,7 @@ 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 */ -@@ -1876,7 +1922,10 @@ 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 - }; - - -@@ -2197,7 +2246,7 @@ static struct dmi_system_id __initdata a - { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), }, - }, - -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - /* -@@ -2215,6 +2264,10 @@ 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()) { -@@ -2288,9 +2341,18 @@ 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. -@@ -2309,6 +2371,11 @@ 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], -@@ -2316,6 +2383,10 @@ 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-2.6.28.8/arch/x86/kernel/asm-offsets_32.c linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c ---- linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -100,6 +100,7 @@ void foo(void) - DEFINE(PTRS_PER_PTE, PTRS_PER_PTE); - DEFINE(PTRS_PER_PMD, PTRS_PER_PMD); - DEFINE(PTRS_PER_PGD, PTRS_PER_PGD); -+ DEFINE(PERCPU_MODULE_RESERVE, PERCPU_MODULE_RESERVE); - - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); - -@@ -113,6 +114,7 @@ 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-2.6.28.8/arch/x86/kernel/asm-offsets_64.c linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c ---- linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -122,6 +122,7 @@ 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-2.6.28.8/arch/x86/kernel/cpu/common.c linux-2.6.28.8/arch/x86/kernel/cpu/common.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/common.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/common.c 2009-02-21 09:37:48.000000000 -0500 -@@ -2,7 +2,6 @@ - #include - #include - #include --#include - #include - #include - #include -@@ -41,59 +40,6 @@ - - static struct cpu_dev *this_cpu __cpuinitdata; - --#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 -- */ --/* The TLS descriptors are currently at a different place compared to i386. -- Hopefully nobody expects them at a fixed place (Wine?) */ --DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = { -- [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 --DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { -- [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] = { { { 0x00000000, 0x00000000 } } }, --} }; --#endif --EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); -- - #ifdef CONFIG_X86_32 - static int cachesize_override __cpuinitdata = -1; - static int disable_x86_serial_nr __cpuinitdata = 1; -@@ -227,7 +173,7 @@ void switch_to_new_gdt(void) - { - struct desc_ptr gdt_descr; - -- gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id()); -+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(smp_processor_id()); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - #ifdef CONFIG_X86_32 -@@ -687,6 +633,10 @@ static void __cpuinit identify_cpu(struc - * we do "generic changes." - */ - -+#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]) { - char *p; -@@ -854,13 +804,13 @@ static __init int setup_disablecpuid(cha - } - __setup("clearcpuid=", setup_disablecpuid); - --cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; -+cpumask_t cpu_initialized = CPU_MASK_NONE; - - #ifdef CONFIG_X86_64 - struct x8664_pda **_cpu_pda __read_mostly; - EXPORT_SYMBOL(_cpu_pda); - --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 }; - - char boot_cpu_stack[IRQSTACKSIZE] __page_aligned_bss; - -@@ -959,7 +909,7 @@ struct pt_regs * __cpuinit idle_regs(str - void __cpuinit cpu_init(void) - { - int cpu = stack_smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu); - unsigned long v; - char *estacks = NULL; -@@ -1080,7 +1030,7 @@ 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 (cpu_test_and_set(cpu, cpu_initialized)) { -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-21 09:37:48.000000000 -0500 -@@ -561,7 +561,7 @@ 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-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/cpu/intel.c linux-2.6.28.8/arch/x86/kernel/cpu/intel.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/intel.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/intel.c 2009-02-21 09:37:48.000000000 -0500 -@@ -72,7 +72,7 @@ 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-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -678,6 +678,7 @@ static struct miscdevice mce_log_device - MISC_MCELOG_MINOR, - "mcelog", - &mce_chrdev_ops, -+ {NULL, NULL}, NULL, NULL - }; - - static unsigned long old_cr4 __initdata; -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-21 09:37:48.000000000 -0500 -@@ -31,11 +31,11 @@ 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 struct mtrr_state mtrr_state = {}; -+static struct mtrr_state mtrr_state; - static int mtrr_state_set; - u64 mtrr_tom2; - -diff -urNp linux-2.6.28.8/arch/x86/kernel/crash.c linux-2.6.28.8/arch/x86/kernel/crash.c ---- linux-2.6.28.8/arch/x86/kernel/crash.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/crash.c 2009-02-21 09:37:48.000000000 -0500 -@@ -59,7 +59,7 @@ static int crash_nmi_callback(struct not - local_irq_disable(); - - #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-2.6.28.8/arch/x86/kernel/doublefault_32.c linux-2.6.28.8/arch/x86/kernel/doublefault_32.c ---- linux-2.6.28.8/arch/x86/kernel/doublefault_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/doublefault_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/dumpstack_32.c linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c ---- linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -238,11 +238,12 @@ 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, -@@ -250,10 +251,10 @@ 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++) { -@@ -262,7 +263,7 @@ 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); -@@ -275,6 +276,7 @@ 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)) -@@ -410,7 +412,7 @@ die_nmi(char *str, struct pt_regs *regs, - * If we are in kernel we are probably nested up pretty bad - * and might aswell get out now while we still can: - */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - current->thread.trap_no = 2; - crash_kexec(regs); - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/efi_32.c linux-2.6.28.8/arch/x86/kernel/efi_32.c ---- linux-2.6.28.8/arch/x86/kernel/efi_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/efi_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/efi_stub_32.S linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S ---- linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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. -@@ -88,34 +80,27 @@ 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) - .previous - --.data -+__INITDATA - saved_return_addr: - .long 0 - efi_rt_function_ptr: -diff -urNp linux-2.6.28.8/arch/x86/kernel/entry_32.S linux-2.6.28.8/arch/x86/kernel/entry_32.S ---- linux-2.6.28.8/arch/x86/kernel/entry_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/entry_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -101,7 +101,7 @@ - #define resume_userspace_sig resume_userspace - #endif - --#define SAVE_ALL \ -+#define __SAVE_ALL(_DS) \ - cld; \ - pushl %fs; \ - CFI_ADJUST_CFA_OFFSET 4;\ -@@ -133,12 +133,26 @@ - 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; \ - movl %edx, %fs - -+#ifdef CONFIG_PAX_KERNEXEC -+#define SAVE_ALL \ -+ __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) -+#define SAVE_ALL __SAVE_ALL(__KERNEL_DS) -+#else -+#define SAVE_ALL __SAVE_ALL(__USER_DS) -+#endif -+ - #define RESTORE_INT_REGS \ - popl %ebx; \ - CFI_ADJUST_CFA_OFFSET -4;\ -@@ -229,6 +243,11 @@ 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) -@@ -252,7 +271,17 @@ 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 -@@ -314,10 +343,9 @@ 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 - -@@ -330,9 +358,19 @@ 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 -@@ -356,12 +394,23 @@ sysenter_do_call: - testw $_TIF_ALLWORK_MASK, %cx - 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 - ENABLE_INTERRUPTS_SYSEXIT - - #ifdef CONFIG_AUDITSYSCALL -@@ -404,11 +453,17 @@ 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 - ENDPROC(ia32_sysenter_target) - -@@ -438,6 +493,10 @@ syscall_exit: - testw $_TIF_ALLWORK_MASK, %cx # 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 -@@ -531,25 +590,19 @@ 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 -@@ -584,6 +637,10 @@ 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 -@@ -595,17 +652,24 @@ syscall_badsys: - END(syscall_badsys) - CFI_ENDPROC - --#define FIXUP_ESPFIX_STACK \ -- /* since we are on a wrong stack, we cant make it a C code :( */ \ -- PER_CPU(gdt_page, %ebx); \ -- GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \ -- addl %esp, %eax; \ -- pushl $__KERNEL_DS; \ -- CFI_ADJUST_CFA_OFFSET 4; \ -- pushl %eax; \ -- CFI_ADJUST_CFA_OFFSET 4; \ -- lss (%esp), %esp; \ -+.macro FIXUP_ESPFIX_STACK -+ /* since we are on a wrong stack, we cant make it a C code :( */ -+#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; -+ CFI_ADJUST_CFA_OFFSET 4; -+ pushl %eax; -+ CFI_ADJUST_CFA_OFFSET 4; -+ lss (%esp), %esp; - CFI_ADJUST_CFA_OFFSET -8; -+.endm - #define UNWIND_ESPFIX_STACK \ - movl %ss, %eax; \ - /* see if on espfix stack */ \ -@@ -622,7 +686,7 @@ END(syscall_badsys) - * Build the entry stubs and pointer table with - * some assembler magic. - */ --.section .rodata,"a" -+.section .rodata,"a",@progbits - ENTRY(interrupt) - .text - -@@ -722,12 +786,21 @@ error_code: - popl %ecx - CFI_ADJUST_CFA_OFFSET -4 - /*CFI_REGISTER es, 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_FS(%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 - mov %ecx, PT_FS(%esp) - /*CFI_REL_OFFSET fs, ES*/ -- movl $(__USER_DS), %ecx -+ movl $(__KERNEL_DS), %ecx - movl %ecx, %ds - movl %ecx, %es - TRACE_IRQS_OFF -@@ -853,6 +926,13 @@ 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 - -@@ -894,6 +974,13 @@ 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 -@@ -1206,7 +1293,6 @@ END(mcount) - #endif /* CONFIG_DYNAMIC_FTRACE */ - #endif /* CONFIG_FUNCTION_TRACER */ - --.section .rodata,"a" - #include "syscall_table_32.S" - - syscall_table_size=(.-sys_call_table) -diff -urNp linux-2.6.28.8/arch/x86/kernel/entry_64.S linux-2.6.28.8/arch/x86/kernel/entry_64.S ---- linux-2.6.28.8/arch/x86/kernel/entry_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/entry_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -911,7 +911,8 @@ END(spurious_interrupt) - xorl %ebx,%ebx - 1: - .if \ist -- movq %gs:pda_data_offset, %rbp -+ imul $TSS_size, %gs:pda_cpunumber, %ebp -+ lea init_tss(%rbp), %rbp - .endif - .if \irqtrace - TRACE_IRQS_OFF -@@ -920,11 +921,11 @@ END(spurious_interrupt) - movq ORIG_RAX(%rsp),%rsi - movq $-1,ORIG_RAX(%rsp) - .if \ist -- subq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp) -+ subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp) - .endif - call \sym - .if \ist -- addq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp) -+ addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp) - .endif - DISABLE_INTERRUPTS(CLBR_NONE) - .if \irqtrace -diff -urNp linux-2.6.28.8/arch/x86/kernel/ftrace.c linux-2.6.28.8/arch/x86/kernel/ftrace.c ---- linux-2.6.28.8/arch/x86/kernel/ftrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ftrace.c 2009-02-21 09:37:48.000000000 -0500 -@@ -95,9 +95,9 @@ 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-2.6.28.8/arch/x86/kernel/head32.c linux-2.6.28.8/arch/x86/kernel/head32.c ---- linux-2.6.28.8/arch/x86/kernel/head32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -12,10 +12,11 @@ - #include - #include - #include -+#include - - void __init i386_start_kernel(void) - { -- reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); -+ reserve_early(LOAD_PHYSICAL_ADDR, __pa_symbol(&_end), "TEXT DATA BSS"); - - #ifdef CONFIG_BLK_DEV_INITRD - /* Reserve INITRD */ -diff -urNp linux-2.6.28.8/arch/x86/kernel/head_32.S linux-2.6.28.8/arch/x86/kernel/head_32.S ---- linux-2.6.28.8/arch/x86/kernel/head_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,7 @@ - #include - #include - #include -+#include - - /* Physical address */ - #define pa(X) ((X) - __PAGE_OFFSET) -@@ -64,17 +65,22 @@ LOW_PAGES = 1<<(32-PAGE_SHIFT_asm) - LOW_PAGES = LOW_PAGES + 0x1000000 - #endif - --#if PTRS_PER_PMD > 1 --PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PMD) + PTRS_PER_PGD --#else --PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PGD) --#endif -+PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PTE) - BOOTBITMAP_SIZE = LOW_PAGES / 8 - ALLOCATOR_SLOP = 4 - - INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE + (PAGE_TABLE_SIZE + ALLOCATOR_SLOP)*PAGE_SIZE_asm - - /* -+ * 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 -@@ -82,6 +88,12 @@ INIT_MAP_BEYOND_END = BOOTBITMAP_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 */ -@@ -99,6 +111,56 @@ ENTRY(startup_32) - movl %eax,%gs - 2: - -+ movl $pa(cpu_gdt_table),%edi -+ movl $__per_cpu_start,%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 + PERCPU_MODULE_RESERVE - 1,%eax -+ subl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+ -+#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... - */ -@@ -142,9 +204,7 @@ 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) -@@ -156,9 +216,9 @@ 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 */ -@@ -220,8 +280,7 @@ 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) -+ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-8) - #else /* Not PAE */ - - page_pde_offset = (__PAGE_OFFSET >> 20); -@@ -253,8 +312,7 @@ 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) -+ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xffc) - #endif - jmp 3f - /* -@@ -318,13 +376,16 @@ 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: - - /* -@@ -350,9 +411,7 @@ 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 */ - - /* -@@ -429,12 +488,12 @@ is386: movl $2,%ecx # set MP - ljmp $(__KERNEL_CS),$1f - 1: movl $(__KERNEL_DS),%eax # reload all the segment registers - movl %eax,%ss # after changing gdt. -- movl %eax,%fs # gets reset once there's real percpu -- -- movl $(__USER_DS),%eax # DS/ES contains default USER segment - movl %eax,%ds - movl %eax,%es - -+ movl $(__KERNEL_PERCPU), %eax -+ movl %eax,%fs # set this cpu's percpu -+ - xorl %eax,%eax # Clear GS and LDT - movl %eax,%gs - lldt %ax -@@ -444,12 +503,6 @@ 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 $(__KERNEL_PERCPU), %eax -- movl %eax,%fs # set this cpu's percpu -- movl (stack_start), %esp --1: - #endif /* CONFIG_SMP */ - jmp *(initial_code) - -@@ -535,15 +588,15 @@ early_page_fault: - jmp early_fault - - early_fault: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $2,%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 */ -@@ -553,8 +606,8 @@ early_fault: - #else - call printk - #endif --#endif - call dump_stack -+#endif - hlt_loop: - hlt - jmp hlt_loop -@@ -562,8 +615,11 @@ 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 -@@ -572,9 +628,6 @@ 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) -@@ -599,36 +652,41 @@ 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: - .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. - */ -+.data -+ - #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 -@@ -651,11 +709,12 @@ 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 - -@@ -691,7 +750,7 @@ 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: -@@ -702,7 +761,7 @@ 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 -@@ -711,5 +770,59 @@ 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 0x0000000000000000 /* 0xe0 - PCIBIOS_CS */ -+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_DS */ -+ .quad 0x0000000000000000 /* 0xf0 - unused */ -+ .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-2.6.28.8/arch/x86/kernel/head64.c linux-2.6.28.8/arch/x86/kernel/head64.c ---- linux-2.6.28.8/arch/x86/kernel/head64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -93,6 +93,8 @@ void __init x86_64_start_kernel(char * r - /* clear bss before set_intr_gate with early_idt_handler */ - clear_bss(); - -+ x86_64_init_pda(); -+ - /* Make NULL pointers segfault */ - zap_identity_mappings(); - -@@ -111,8 +113,6 @@ void __init x86_64_start_kernel(char * r - if (console_loglevel == 10) - early_printk("Kernel alive\n"); - -- x86_64_init_pda(); -- - x86_64_start_reservations(real_mode_data); - } - -diff -urNp linux-2.6.28.8/arch/x86/kernel/head_64.S linux-2.6.28.8/arch/x86/kernel/head_64.S ---- linux-2.6.28.8/arch/x86/kernel/head_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -38,6 +38,10 @@ 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 -@@ -85,35 +89,22 @@ 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 -@@ -187,6 +178,10 @@ 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 */ -@@ -257,16 +252,16 @@ ENTRY(secondary_startup_64) - .align 8 - ENTRY(initial_code) - .quad x86_64_start_kernel -- __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: -@@ -311,18 +306,23 @@ 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 - .balign PAGE_SIZE - - #define NEXT_PAGE(name) \ -@@ -347,13 +347,27 @@ 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 -@@ -361,20 +375,27 @@ 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) - /* -@@ -387,32 +408,48 @@ 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 -- .quad per_cpu__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 256 * 16 -+ .fill 512,8,0 - - .section .bss.page_aligned, "aw", @nobits - .align PAGE_SIZE -diff -urNp linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c ---- linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/init_task.c linux-2.6.28.8/arch/x86/kernel/init_task.c ---- linux-2.6.28.8/arch/x86/kernel/init_task.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/init_task.c 2009-02-21 09:37:48.000000000 -0500 -@@ -42,5 +42,5 @@ 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-2.6.28.8/arch/x86/kernel/ioport.c linux-2.6.28.8/arch/x86/kernel/ioport.c ---- linux-2.6.28.8/arch/x86/kernel/ioport.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ioport.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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); - -@@ -122,8 +129,13 @@ 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-2.6.28.8/arch/x86/kernel/irq_32.c linux-2.6.28.8/arch/x86/kernel/irq_32.c ---- linux-2.6.28.8/arch/x86/kernel/irq_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/irq_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -93,7 +93,7 @@ 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; - -@@ -174,7 +174,7 @@ 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-2.6.28.8/arch/x86/kernel/kprobes.c linux-2.6.28.8/arch/x86/kernel/kprobes.c ---- linux-2.6.28.8/arch/x86/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/kprobes.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 -+ - } - - /* -@@ -342,16 +357,29 @@ 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) -@@ -428,7 +456,7 @@ 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, -@@ -449,7 +477,7 @@ 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; - } -@@ -519,7 +547,7 @@ 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 -@@ -770,7 +798,7 @@ 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; - -@@ -953,7 +981,7 @@ 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-2.6.28.8/arch/x86/kernel/ldt.c linux-2.6.28.8/arch/x86/kernel/ldt.c ---- linux-2.6.28.8/arch/x86/kernel/ldt.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ldt.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/machine_kexec_32.c linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c ---- linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -34,7 +34,7 @@ static u32 kexec_pmd1[1024] PAGE_ALIGNED - static u32 kexec_pte0[1024] PAGE_ALIGNED; - static u32 kexec_pte1[1024] PAGE_ALIGNED; - --static void set_idt(void *newidt, __u16 limit) -+static void set_idt(struct desc_struct *newidt, __u16 limit) - { - struct desc_ptr curidt; - -@@ -46,7 +46,7 @@ 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; - -@@ -145,7 +145,7 @@ 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-2.6.28.8/arch/x86/kernel/module_32.c linux-2.6.28.8/arch/x86/kernel/module_32.c ---- linux-2.6.28.8/arch/x86/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 +70,45 @@ 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); -+ } -+} -+#endif -+ - /* We don't need anything special. */ - int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, -@@ -63,14 +127,20 @@ 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 +148,32 @@ 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-2.6.28.8/arch/x86/kernel/module_64.c linux-2.6.28.8/arch/x86/kernel/module_64.c ---- linux-2.6.28.8/arch/x86/kernel/module_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/module_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 +54,31 @@ 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); -+} -+ -+void *module_alloc_exec(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_RX); - } -+#else -+void *module_alloc(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_EXEC); -+} -+#endif -+ - #endif - - /* We don't need anything special. */ -@@ -77,7 +100,11 @@ int apply_relocate_add(Elf64_Shdr *sechd - Elf64_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf64_Sym *sym; - void *loc; -- u64 val; -+ u64 val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); -@@ -101,21 +128,61 @@ 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-2.6.28.8/arch/x86/kernel/paravirt.c linux-2.6.28.8/arch/x86/kernel/paravirt.c ---- linux-2.6.28.8/arch/x86/kernel/paravirt.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/paravirt.c 2009-03-07 10:34:42.000000000 -0500 -@@ -44,7 +44,7 @@ void _paravirt_nop(void) - { - } - --static void __init default_banner(void) -+static void default_banner(void) - { - printk(KERN_INFO "Booting paravirtualized kernel on %s\n", - pv_info.name); -@@ -164,7 +164,7 @@ 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; - } -@@ -292,21 +292,21 @@ 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, -@@ -314,7 +314,7 @@ 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 = native_save_fl, - .restore_fl = native_restore_fl, -@@ -327,7 +327,7 @@ 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, -@@ -389,7 +389,7 @@ 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, -@@ -397,7 +397,7 @@ struct pv_apic_ops pv_apic_ops = { - #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-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c ---- linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/process_32.c linux-2.6.28.8/arch/x86/kernel/process_32.c ---- linux-2.6.28.8/arch/x86/kernel/process_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/process_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -65,8 +65,10 @@ asmlinkage void ret_from_fork(void) __as - DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task; - EXPORT_PER_CPU_SYMBOL(current_task); - -+#ifdef CONFIG_SMP - DEFINE_PER_CPU(int, cpu_number); - EXPORT_PER_CPU_SYMBOL(cpu_number); -+#endif - - /* - * Return saved PC of a blocked thread. -@@ -74,6 +76,7 @@ EXPORT_PER_CPU_SYMBOL(cpu_number); - unsigned long thread_saved_pc(struct task_struct *tsk) - { - return ((unsigned long *)tsk->thread.sp)[3]; -+//XXX return tsk->thread.eip; - } - - #ifndef CONFIG_SMP -@@ -131,7 +134,7 @@ 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; - savesegment(gs, gs); -@@ -212,8 +215,8 @@ 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.orig_ax = -1; - regs.ip = (unsigned long) kernel_thread_helper; -@@ -235,7 +238,7 @@ void exit_thread(void) - struct task_struct *tsk = current; - struct thread_struct *t = &tsk->thread; - int cpu = get_cpu(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - kfree(t->io_bitmap_ptr); - t->io_bitmap_ptr = NULL; -@@ -264,6 +267,7 @@ void flush_thread(void) - { - struct task_struct *tsk = current; - -+ loadsegment(gs, 0); - tsk->thread.debugreg0 = 0; - tsk->thread.debugreg1 = 0; - tsk->thread.debugreg2 = 0; -@@ -303,7 +307,7 @@ int copy_thread(int nr, unsigned long cl - 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; -@@ -332,6 +336,7 @@ int copy_thread(int nr, unsigned long cl - * 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); - -@@ -553,7 +558,7 @@ struct task_struct * __switch_to(struct - 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 */ - -@@ -581,6 +586,11 @@ struct task_struct * __switch_to(struct - */ - savesegment(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. - */ -@@ -719,15 +729,27 @@ 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-2.6.28.8/arch/x86/kernel/process_64.c linux-2.6.28.8/arch/x86/kernel/process_64.c ---- linux-2.6.28.8/arch/x86/kernel/process_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/process_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -109,6 +109,8 @@ static inline void play_dead(void) - void cpu_idle(void) - { - current_thread_info()->status |= TS_POLLING; -+ current->stack_canary = pax_get_random_long(); -+ write_pda(stack_canary, current->stack_canary); - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_stop_sched_tick(1); -@@ -223,7 +225,7 @@ void exit_thread(void) - struct thread_struct *t = &me->thread; - - if (me->thread.io_bitmap_ptr) { -- struct tss_struct *tss = &per_cpu(init_tss, get_cpu()); -+ struct tss_struct *tss = init_tss + get_cpu(); - - kfree(t->io_bitmap_ptr); - t->io_bitmap_ptr = NULL; -@@ -558,7 +560,7 @@ __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 */ -@@ -647,7 +649,6 @@ __switch_to(struct task_struct *prev_p, - (unsigned long)task_stack_page(next_p) + - THREAD_SIZE - PDA_STACKOFFSET); - #ifdef CONFIG_CC_STACKPROTECTOR -- write_pda(stack_canary, next_p->stack_canary); - /* - * Build time only check to make sure the stack_canary is at - * offset 40 in the pda; this is a gcc ABI requirement -@@ -746,12 +747,11 @@ 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)) -@@ -860,16 +860,3 @@ 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-2.6.28.8/arch/x86/kernel/ptrace.c linux-2.6.28.8/arch/x86/kernel/ptrace.c ---- linux-2.6.28.8/arch/x86/kernel/ptrace.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ptrace.c 2009-03-07 10:29:51.000000000 -0500 -@@ -1502,7 +1502,7 @@ 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-2.6.28.8/arch/x86/kernel/reboot.c linux-2.6.28.8/arch/x86/kernel/reboot.c ---- linux-2.6.28.8/arch/x86/kernel/reboot.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/reboot.c 2009-03-07 10:32:37.000000000 -0500 -@@ -28,7 +28,7 @@ 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; - -@@ -210,7 +210,7 @@ static struct dmi_system_id __initdata r - DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"), - }, - }, -- { } -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - static int __init reboot_init(void) -@@ -226,12 +226,12 @@ 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 -@@ -280,7 +280,7 @@ 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(); - -@@ -300,8 +300,8 @@ 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. -@@ -313,16 +313,15 @@ 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-2.6.28.8/arch/x86/kernel/setup.c linux-2.6.28.8/arch/x86/kernel/setup.c ---- linux-2.6.28.8/arch/x86/kernel/setup.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/setup.c 2009-02-21 09:37:48.000000000 -0500 -@@ -738,6 +738,7 @@ void start_periodic_check_for_corruption - } - #endif - -+#ifdef CONFIG_X86_RESERVE_LOW_64K - static int __init dmi_low_memory_corruption(const struct dmi_system_id *d) - { - printk(KERN_NOTICE -@@ -749,6 +750,7 @@ static int __init dmi_low_memory_corrupt - - return 0; - } -+#endif - - /* List of systems that have known low memory corruption BIOS problems */ - static struct dmi_system_id __initdata bad_bios_dmi_table[] = { -@@ -845,8 +847,8 @@ 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; - #ifdef CONFIG_X86_32 - init_mm.brk = init_pg_tables_end + PAGE_OFFSET; -@@ -854,9 +856,9 @@ void __init setup_arch(char **cmdline_p) - init_mm.brk = (unsigned long) &_end; - #endif - -- 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-2.6.28.8/arch/x86/kernel/setup_percpu.c linux-2.6.28.8/arch/x86/kernel/setup_percpu.c ---- linux-2.6.28.8/arch/x86/kernel/setup_percpu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/setup_percpu.c 2009-02-21 09:37:48.000000000 -0500 -@@ -179,7 +179,11 @@ void __init setup_per_cpu_areas(void) - cpu, node, __pa(ptr)); - } - #endif -+#ifdef CONFIG_X86_32 -+ __per_cpu_offset[cpu] = ptr - __per_cpu_start; -+#else - per_cpu_offset(cpu) = ptr - __per_cpu_start; -+#endif - memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); - } - -diff -urNp linux-2.6.28.8/arch/x86/kernel/signal_32.c linux-2.6.28.8/arch/x86/kernel/signal_32.c ---- linux-2.6.28.8/arch/x86/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -367,9 +367,9 @@ __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; - -@@ -442,7 +442,7 @@ static int __setup_rt_frame(int sig, str - return -EFAULT; - - /* 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; - err |= __put_user(restorer, &frame->pretcode); -@@ -612,7 +612,7 @@ 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-2.6.28.8/arch/x86/kernel/signal_64.c linux-2.6.28.8/arch/x86/kernel/signal_64.c ---- linux-2.6.28.8/arch/x86/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -239,8 +239,8 @@ static int __setup_rt_frame(int sig, str - err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me); - err |= __put_user(fp, &frame->uc.uc_mcontext.fpstate); - if (sizeof(*set) == 16) { -- __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]); -- __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]); -+ err |= __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]); -+ err |= __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]); - } else - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - -diff -urNp linux-2.6.28.8/arch/x86/kernel/smpboot.c linux-2.6.28.8/arch/x86/kernel/smpboot.c ---- linux-2.6.28.8/arch/x86/kernel/smpboot.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/smpboot.c 2009-02-21 09:37:48.000000000 -0500 -@@ -814,6 +814,11 @@ static int __cpuinit do_boot_cpu(int api - .cpu = cpu, - .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done), - }; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - INIT_WORK(&c_idle.work, do_fork_idle); - - #ifdef CONFIG_X86_64 -@@ -864,7 +869,17 @@ do_rest: - cpu_pda(cpu)->pcurrent = c_idle.idle; - clear_tsk_thread_flag(c_idle.idle, TIF_FORK); - #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-2.6.28.8/arch/x86/kernel/smpcommon.c linux-2.6.28.8/arch/x86/kernel/smpcommon.c ---- linux-2.6.28.8/arch/x86/kernel/smpcommon.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/smpcommon.c 2009-02-21 09:37:48.000000000 -0500 -@@ -3,9 +3,10 @@ - */ - #include - #include -+#include - - #ifdef CONFIG_X86_32 --DEFINE_PER_CPU(unsigned long, this_cpu_off); -+DEFINE_PER_CPU(unsigned long, this_cpu_off) = (unsigned long)__per_cpu_start; - EXPORT_PER_CPU_SYMBOL(this_cpu_off); - - /* -@@ -15,16 +16,19 @@ EXPORT_PER_CPU_SYMBOL(this_cpu_off); - */ - __cpuinit void init_gdt(int cpu) - { -- struct desc_struct gdt; -+ struct desc_struct d, *gdt = get_cpu_gdt_table(cpu); -+ unsigned long base, limit; - -- pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF, -- 0x2 | DESCTYPE_S, 0x8); -- gdt.s = 1; -+ base = per_cpu_offset(cpu); -+ limit = PERCPU_ENOUGH_ROOM - 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(get_cpu_gdt_table(cpu), -- GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); -+ write_gdt_entry(gdt, GDT_ENTRY_PERCPU, &d, DESCTYPE_S); - -- per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu]; -+ per_cpu(this_cpu_off, cpu) = base; - per_cpu(cpu_number, cpu) = cpu; - } - #endif -diff -urNp linux-2.6.28.8/arch/x86/kernel/step.c linux-2.6.28.8/arch/x86/kernel/step.c ---- linux-2.6.28.8/arch/x86/kernel/step.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/step.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/syscall_table_32.S linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S ---- linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/sys_i386_32.c linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c ---- linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/sys_x86_64.c linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c ---- linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/time_32.c linux-2.6.28.8/arch/x86/kernel/time_32.c ---- linux-2.6.28.8/arch/x86/kernel/time_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/time_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/time_64.c linux-2.6.28.8/arch/x86/kernel/time_64.c ---- linux-2.6.28.8/arch/x86/kernel/time_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/time_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -34,7 +34,7 @@ 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-2.6.28.8/arch/x86/kernel/tlb_32.c linux-2.6.28.8/arch/x86/kernel/tlb_32.c ---- linux-2.6.28.8/arch/x86/kernel/tlb_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/tlb_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -5,7 +5,7 @@ - #include - - DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) -- ____cacheline_aligned = { &init_mm, 0, }; -+ ____cacheline_aligned = { &init_mm, 0, {0} }; - - /* must come after the send_IPI functions above for inlining */ - #include -diff -urNp linux-2.6.28.8/arch/x86/kernel/tls.c linux-2.6.28.8/arch/x86/kernel/tls.c ---- linux-2.6.28.8/arch/x86/kernel/tls.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/tls.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/kernel/traps.c linux-2.6.28.8/arch/x86/kernel/traps.c ---- linux-2.6.28.8/arch/x86/kernel/traps.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/traps.c 2009-03-07 10:29:51.000000000 -0500 -@@ -79,14 +79,6 @@ 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 - - static int ignore_nmis; -@@ -121,7 +113,7 @@ 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); - } - -@@ -138,7 +130,7 @@ static int lazy_iobitmap_copy(void) - int cpu; - - cpu = get_cpu(); -- tss = &per_cpu(init_tss, cpu); -+ tss = init_tss + cpu; - thread = ¤t->thread; - - if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY && -@@ -174,7 +166,7 @@ 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. -@@ -185,7 +177,7 @@ 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 -@@ -227,6 +219,12 @@ 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 -@@ -318,14 +316,30 @@ do_general_protection(struct pt_regs *re - return; - } - -- 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; - -@@ -358,6 +372,13 @@ 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); - } - -@@ -604,7 +625,7 @@ dotraplinkage void __kprobes do_debug(st - } - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto debug_vm86; - #endif - -@@ -616,7 +637,7 @@ 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; - } - -@@ -808,7 +829,7 @@ 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; - } -@@ -837,19 +858,14 @@ 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-2.6.28.8/arch/x86/kernel/tsc.c linux-2.6.28.8/arch/x86/kernel/tsc.c ---- linux-2.6.28.8/arch/x86/kernel/tsc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/tsc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -728,7 +728,7 @@ static struct dmi_system_id __initdata b - DMI_MATCH(DMI_BOARD_NAME, "2635FA0"), - }, - }, -- {} -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - /* -diff -urNp linux-2.6.28.8/arch/x86/kernel/vm86_32.c linux-2.6.28.8/arch/x86/kernel/vm86_32.c ---- linux-2.6.28.8/arch/x86/kernel/vm86_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vm86_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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); -@@ -325,7 +325,7 @@ static void do_sys_vm86(struct kernel_vm - tsk->thread.saved_fs = info->regs32->fs; - savesegment(gs, tsk->thread.saved_gs); - -- 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-2.6.28.8/arch/x86/kernel/vmi_32.c linux-2.6.28.8/arch/x86/kernel/vmi_32.c ---- linux-2.6.28.8/arch/x86/kernel/vmi_32.c 2009-02-08 00:54:27.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vmi_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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: -@@ -526,14 +551,14 @@ 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_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE); - 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_check_page_type(__pa(pmd) >> PAGE_SHIFT, VMI_PAGE_PMD); - vmi_ops.set_pte(pte, (pte_t *)pmd, VMI_PAGE_PD); - } -@@ -562,8 +587,8 @@ 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; - -@@ -758,12 +783,20 @@ 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"; -@@ -954,6 +987,10 @@ 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-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S ---- linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S 2009-03-07 10:35:39.000000000 -0500 -@@ -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) -@@ -22,81 +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; -- -- .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 -- *(.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 = .; -- } -+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR; - -- . = 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); -@@ -114,14 +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); -@@ -161,11 +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 - } -@@ -178,18 +123,138 @@ SECTIONS - } - #endif - . = ALIGN(PAGE_SIZE); -- .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { -- __per_cpu_start = .; -- *(.data.percpu.page_aligned) -+ per_cpu_start = .; -+ .data.percpu (0) : AT(ADDR(.data.percpu) - LOAD_OFFSET + per_cpu_start) { -+ __per_cpu_start = . + per_cpu_start; -+ LONG(0) - *(.data.percpu) - *(.data.percpu.shared_aligned) -- __per_cpu_end = .; -- } -+ . = ALIGN(PAGE_SIZE); -+ *(.data.percpu.page_aligned) -+ __per_cpu_end = . + per_cpu_start; -+ } :percpu -+ . += per_cpu_start; - . = 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 -+ *(.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-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S ---- linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S 2009-02-21 09:37:48.000000000 -0500 -@@ -16,7 +16,7 @@ jiffies_64 = jiffies; - _proxy_pda = 1; - PHDRS { - text PT_LOAD FLAGS(5); /* R_E */ -- data PT_LOAD FLAGS(7); /* RWE */ -+ data PT_LOAD FLAGS(6); /* RW_ */ - user PT_LOAD FLAGS(7); /* RWE */ - data.init PT_LOAD FLAGS(7); /* RWE */ - note PT_NOTE FLAGS(0); /* ___ */ -@@ -49,17 +49,20 @@ 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 = .; - .data : AT(ADDR(.data) - LOAD_OFFSET) { - DATA_DATA - CONSTRUCTORS - } :data - -- _edata = .; /* End of data section */ -- - . = ALIGN(PAGE_SIZE); - . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); - .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { -@@ -70,9 +73,27 @@ SECTIONS - *(.data.read_mostly) - } - -+ . = ALIGN(THREAD_SIZE); /* init_task */ -+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -+ *(.data.init_task) -+ } -+ -+ . = ALIGN(PAGE_SIZE); -+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -+ *(.data.page_aligned) -+ } -+ -+ . = ALIGN(PAGE_SIZE); -+ __nosave_begin = .; -+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.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) -@@ -120,23 +141,13 @@ SECTIONS - #undef VVIRT_OFFSET - #undef VVIRT - -- . = ALIGN(THREAD_SIZE); /* init_task */ -- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -- *(.data.init_task) -- }:data.init -- -- . = ALIGN(PAGE_SIZE); -- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -- *(.data.page_aligned) -- } -- - /* might get freed after init */ - . = ALIGN(PAGE_SIZE); - __smp_alt_begin = .; - __smp_locks = .; - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - *(.smp_locks) -- } -+ } :data.init - __smp_locks_end = .; - . = ALIGN(PAGE_SIZE); - __smp_alt_end = .; -@@ -212,16 +223,11 @@ SECTIONS - . = ALIGN(PAGE_SIZE); - __init_end = .; - -- . = ALIGN(PAGE_SIZE); -- __nosave_begin = .; -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) } -- . = ALIGN(PAGE_SIZE); -- __nosave_end = .; -- - __bss_start = .; /* BSS */ - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { - *(.bss.page_aligned) - *(.bss) -+ . = ALIGN(2*1024*1024); - } - __bss_stop = .; - -diff -urNp linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c ---- linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -236,13 +236,13 @@ 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-2.6.28.8/arch/x86/kvm/svm.c linux-2.6.28.8/arch/x86/kvm/svm.c ---- linux-2.6.28.8/arch/x86/kvm/svm.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kvm/svm.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1505,7 +1505,19 @@ 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(); - } - -@@ -1912,7 +1924,7 @@ static int get_npt_level(void) - #endif - } - --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-2.6.28.8/arch/x86/kvm/vmx.c linux-2.6.28.8/arch/x86/kvm/vmx.c ---- linux-2.6.28.8/arch/x86/kvm/vmx.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kvm/vmx.c 2009-02-21 09:37:48.000000000 -0500 -@@ -122,7 +122,7 @@ static struct vmcs_config { - u32 vmentry_ctrl; - } vmcs_config; - --struct vmx_capability { -+static struct vmx_capability { - u32 ept; - u32 vpid; - } vmx_capability; -@@ -491,9 +491,23 @@ 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(); - } - -@@ -2164,7 +2178,7 @@ static int vmx_vcpu_setup(struct vcpu_vm - vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */ - - asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return)); -- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */ -+ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */ - vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0); - vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0); - vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0); -@@ -3267,6 +3281,12 @@ static void vmx_vcpu_run(struct kvm_vcpu - "jmp .Lkvm_vmx_return \n\t" - ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" - ".Lkvm_vmx_return: " -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ "ljmp %[cs],$.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" -@@ -3313,6 +3333,11 @@ 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 -@@ -3331,7 +3356,7 @@ static void vmx_vcpu_run(struct kvm_vcpu - (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & - (GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS)) == 0; - -- 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); -@@ -3455,7 +3480,7 @@ static int get_ept_level(void) - return VMX_EPT_DEFAULT_GAW + 1; - } - --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-2.6.28.8/arch/x86/kvm/x86.c linux-2.6.28.8/arch/x86/kvm/x86.c ---- linux-2.6.28.8/arch/x86/kvm/x86.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kvm/x86.c 2009-02-21 09:37:48.000000000 -0500 -@@ -68,41 +68,41 @@ static u64 __read_mostly efer_reserved_b - static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid, - struct kvm_cpuid_entry2 __user *entries); - --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) }, -- { "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) }, -- { "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) }, -- { "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 }, -+ { "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 }, -+ { "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 }, -+ { "remote_tlb_flush", VM_STAT(remote_tlb_flush), NULL }, -+ { "largepages", VM_STAT(lpages), NULL }, - { NULL } - }; - -@@ -1304,7 +1304,7 @@ 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; -@@ -2509,10 +2509,10 @@ int kvm_emulate_pio_string(struct kvm_vc - } - EXPORT_SYMBOL_GPL(kvm_emulate_pio_string); - --int kvm_arch_init(void *opaque) -+int kvm_arch_init(const void *opaque) - { - int r; -- 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-2.6.28.8/arch/x86/lib/checksum_32.S linux-2.6.28.8/arch/x86/lib/checksum_32.S ---- linux-2.6.28.8/arch/x86/lib/checksum_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/checksum_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/clear_page_64.S linux-2.6.28.8/arch/x86/lib/clear_page_64.S ---- linux-2.6.28.8/arch/x86/lib/clear_page_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/clear_page_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/copy_page_64.S linux-2.6.28.8/arch/x86/lib/copy_page_64.S ---- linux-2.6.28.8/arch/x86/lib/copy_page_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/copy_page_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/copy_user_64.S linux-2.6.28.8/arch/x86/lib/copy_user_64.S ---- linux-2.6.28.8/arch/x86/lib/copy_user_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/copy_user_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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 -@@ -106,6 +106,8 @@ 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-2.6.28.8/arch/x86/lib/getuser.S linux-2.6.28.8/arch/x86/lib/getuser.S ---- linux-2.6.28.8/arch/x86/lib/getuser.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/getuser.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/memcpy_64.S linux-2.6.28.8/arch/x86/lib/memcpy_64.S ---- linux-2.6.28.8/arch/x86/lib/memcpy_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/memcpy_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -114,7 +114,7 @@ ENDPROC(__memcpy) - /* Some CPUs run faster using the string copy instructions. - 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-2.6.28.8/arch/x86/lib/memset_64.S linux-2.6.28.8/arch/x86/lib/memset_64.S ---- linux-2.6.28.8/arch/x86/lib/memset_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/memset_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/mmx_32.c linux-2.6.28.8/arch/x86/lib/mmx_32.c ---- linux-2.6.28.8/arch/x86/lib/mmx_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/mmx_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/putuser.S linux-2.6.28.8/arch/x86/lib/putuser.S ---- linux-2.6.28.8/arch/x86/lib/putuser.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/putuser.S 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/lib/usercopy_32.c linux-2.6.28.8/arch/x86/lib/usercopy_32.c ---- linux-2.6.28.8/arch/x86/lib/usercopy_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/usercopy_32.c 2009-02-21 09:39:27.000000000 -0500 -@@ -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_sleep(); \ -- __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_sleep(); -+ __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_sleep(); \ -- __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_sleep(); -+ __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_sleep(); - 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_sleep(); - - __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 +240,11 @@ 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" -@@ -239,36 +253,36 @@ __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 +296,8 @@ __copy_user_intel(void __user *to, const - "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" -@@ -328,7 +344,117 @@ __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; -+} -+ -+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" -+ " 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 %%ds\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; - } -@@ -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; - } -@@ -827,9 +1017,9 @@ 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; - } -@@ -878,8 +1068,35 @@ copy_from_user(void *to, const void __us - { - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); -- else -+ else if ((long)n > 0) - memset(to, 0, n); - return n; - } - EXPORT_SYMBOL(copy_from_user); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+void __set_fs(mm_segment_t x, int cpu) -+{ -+ 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); -+} -+ -+void set_fs(mm_segment_t x) -+{ -+ __set_fs(x, get_cpu()); -+ put_cpu_no_resched(); -+} -+#else -+void set_fs(mm_segment_t x) -+{ -+ current_thread_info()->addr_limit = x; -+} -+#endif -+ -+EXPORT_SYMBOL(set_fs); -diff -urNp linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c ---- linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c 2009-02-21 09:37:48.000000000 -0500 -@@ -123,7 +123,7 @@ int __init voyager_memory_detect(int reg - __u8 cmos[4]; - ClickMap_t *map; - unsigned long map_addr; -- unsigned long old; -+ pte_t old; - - if (region >= CLICK_ENTRIES) { - printk("Voyager: Illegal ClickMap region %d\n", region); -@@ -138,7 +138,7 @@ int __init voyager_memory_detect(int reg - - /* steal page 0 for this */ - old = pg0[0]; -- pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT); -+ pg0[0] = __pte((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT); - local_flush_tlb(); - /* now clear everything out but page 0 */ - map = (ClickMap_t *) (map_addr & (~PAGE_MASK)); -diff -urNp linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c ---- linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -521,6 +521,10 @@ static void __init do_boot_cpu(__u8 cpu) - __u32 *hijack_vector; - __u32 start_phys_address = setup_trampoline(); - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* There's a clever trick to this: The linux trampoline is - * compiled to begin at absolute location zero, so make the - * address zero but have the data segment selector compensate -@@ -540,7 +544,17 @@ static void __init do_boot_cpu(__u8 cpu) - - init_gdt(cpu); - per_cpu(current_task, cpu) = idle; -- early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ early_gdt_descr.address = get_cpu_gdt_table(cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - irq_ctx_init(cpu); - - /* Note: Don't modify initial ss override */ -@@ -1154,7 +1168,7 @@ void smp_local_timer_interrupt(void) - per_cpu(prof_counter, cpu); - } - -- update_process_times(user_mode_vm(get_irq_regs())); -+ update_process_times(user_mode(get_irq_regs())); - } - - if (((1 << cpu) & voyager_extended_vic_processors) == 0) -diff -urNp linux-2.6.28.8/arch/x86/Makefile linux-2.6.28.8/arch/x86/Makefile ---- linux-2.6.28.8/arch/x86/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -232,3 +232,12 @@ endef - CLEAN_FILES += arch/x86/boot/fdimage \ - arch/x86/boot/image.iso \ - arch/x86/boot/mtools.conf -+ -+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-2.6.28.8/arch/x86/mm/extable.c linux-2.6.28.8/arch/x86/mm/extable.c ---- linux-2.6.28.8/arch/x86/mm/extable.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/extable.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/mm/fault.c linux-2.6.28.8/arch/x86/mm/fault.c ---- linux-2.6.28.8/arch/x86/mm/fault.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -26,6 +26,8 @@ - #include - #include - #include -+#include -+#include - - #include - #include -@@ -67,7 +69,7 @@ static inline int notify_page_fault(stru - int ret = 0; - - /* kprobe_running() needs smp_processor_id() */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - preempt_disable(); - if (kprobe_running() && kprobe_fault_handler(regs, 14)) - ret = 1; -@@ -265,6 +267,30 @@ bad: - #endif - } - -+#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 -+ - #ifdef CONFIG_X86_32 - static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) - { -@@ -351,7 +377,7 @@ 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))) && -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && - (address >> 32)) - return 1; - #endif -@@ -386,14 +412,31 @@ static void show_fault_oops(struct pt_re - #endif - - #ifdef CONFIG_X86_PAE -- 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(KERN_CRIT "kernel tried to execute " - "NX-protected page - exploit attempt? " -- "(uid: %d)\n", current->uid); -+ "(uid: %d, task: %s, pid: %d)\n", -+ current->uid, current->comm, task_pid_nr(current)); -+ } -+#endif -+ -+#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 - -@@ -585,20 +628,26 @@ void __kprobes do_page_fault(struct pt_r - struct task_struct *tsk; - struct mm_struct *mm; - struct vm_area_struct *vma; -- unsigned long address; - int write, si_code; - int fault; - #ifdef CONFIG_X86_64 - unsigned long flags; - #endif - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ pte_t *pte; -+ pmd_t *pmd; -+ spinlock_t *ptl; -+ unsigned char pte_mask; -+#endif -+ -+ /* get the address */ -+ const unsigned long address = read_cr2(); -+ - tsk = current; - mm = tsk->mm; - prefetchw(&mm->mmap_sem); - -- /* get the address */ -- address = read_cr2(); -- - si_code = SEGV_MAPERR; - - if (unlikely(kmmio_fault(regs, address))) -@@ -651,7 +700,7 @@ void __kprobes do_page_fault(struct pt_r - * 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 if (regs->flags & X86_EFLAGS_IF) -@@ -667,7 +716,7 @@ void __kprobes do_page_fault(struct pt_r - * atomic region then we must not take the fault. - */ - if (unlikely(in_atomic() || !mm)) -- goto bad_area_nosemaphore; -+ goto bad_area_nopax; - - again: - /* -@@ -689,10 +738,104 @@ again: - if (!down_read_trylock(&mm->mmap_sem)) { - if ((error_code & PF_USER) == 0 && - !search_exception_tables(regs->ip)) -- goto bad_area_nosemaphore; -+ goto bad_area_nopax; - down_read(&mm->mmap_sem); - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (nx_enabled || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) || -+ !(mm->pax_flags & MF_PAX_PAGEEXEC)) -+ goto not_pax_fault; -+ -+ /* 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; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ -+ pmd = pax_get_pmd(mm, address); -+ if (unlikely(!pmd)) -+ goto not_pax_fault; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) { -+ pte_unmap_unlock(pte, ptl); -+ goto not_pax_fault; -+ } -+ -+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) { -+ /* write attempt to a protected page in user mode */ -+ pte_unmap_unlock(pte, ptl); -+ goto not_pax_fault; -+ } -+ -+#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; -+ } -+ -+ 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; -+ -+not_pax_fault: -+#endif -+ - vma = find_vma(mm, address); - if (!vma) - goto bad_area; -@@ -700,16 +843,20 @@ again: - goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; -- 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 (address + 65536 + 32 * sizeof(unsigned long) < regs->sp) -- goto bad_area; -- } -+ /* -+ * 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 (address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp) -+ goto bad_area; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1) -+ goto bad_area; -+#endif -+ - if (expand_stack(vma, address)) - goto bad_area; - /* -@@ -719,6 +866,8 @@ again: - good_area: - si_code = SEGV_ACCERR; - write = 0; -+ if (nx_enabled && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC)) -+ goto bad_area; - switch (error_code & (PF_PROT|PF_WRITE)) { - default: /* 3: write, present */ - /* fall through */ -@@ -773,6 +922,54 @@ bad_area: - up_read(&mm->mmap_sem); - - bad_area_nosemaphore: -+ -+#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 -+ -+bad_area_nopax: - /* User mode accesses just cause a SIGSEGV */ - if (error_code & PF_USER) { - /* -@@ -851,7 +1048,7 @@ no_context: - #ifdef CONFIG_X86_32 - die("Oops", regs, error_code); - bust_spinlocks(0); -- do_exit(SIGKILL); -+ do_group_exit(SIGKILL); - #else - if (__die("Oops", regs, error_code)) - regs = NULL; -@@ -944,3 +1141,174 @@ void vmalloc_sync_all(void) - } - #endif - } -+ -+#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-2.6.28.8/arch/x86/mm/highmem_32.c linux-2.6.28.8/arch/x86/mm/highmem_32.c ---- linux-2.6.28.8/arch/x86/mm/highmem_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/highmem_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -74,6 +74,10 @@ 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(); - -@@ -85,7 +89,17 @@ 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; -@@ -101,15 +115,29 @@ 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); -@@ -128,11 +156,25 @@ void *kmap_atomic_pfn(unsigned long pfn, - enum fixed_addresses idx; - unsigned long vaddr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pagefault_disable(); - - 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, kmap_prot)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - arch_flush_lazy_mmu_mode(); - - return (void*) vaddr; -diff -urNp linux-2.6.28.8/arch/x86/mm/hugetlbpage.c linux-2.6.28.8/arch/x86/mm/hugetlbpage.c ---- linux-2.6.28.8/arch/x86/mm/hugetlbpage.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/hugetlbpage.c 2009-02-21 09:37:48.000000000 -0500 -@@ -263,13 +263,18 @@ 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: -@@ -277,13 +282,13 @@ 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; - } -@@ -306,9 +311,8 @@ 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) -@@ -318,7 +322,7 @@ 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; -@@ -360,22 +364,26 @@ 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); -@@ -383,6 +391,7 @@ fail: - /* - * Restore the topdown base: - */ -+ mm->mmap_base = base; - mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - -@@ -396,10 +405,17 @@ 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) { -@@ -411,7 +427,7 @@ 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-2.6.28.8/arch/x86/mm/init_32.c linux-2.6.28.8/arch/x86/mm/init_32.c ---- linux-2.6.28.8/arch/x86/mm/init_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/init_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -49,6 +49,7 @@ - #include - #include - #include -+#include - - unsigned int __VMALLOC_RESERVE = 128 << 20; - -@@ -82,35 +83,6 @@ static __init void *alloc_low_page(unsig - } - - /* -- * 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 -- unsigned long phys; -- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { -- if (after_init_bootmem) -- pmd_table = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE); -- else -- pmd_table = (pmd_t *)alloc_low_page(&phys); -- 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)); -- } --#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: - */ -@@ -132,7 +104,11 @@ static pte_t * __init one_page_table_ini - } - - 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)); - } - -@@ -154,6 +130,7 @@ page_table_range_init(unsigned long star - int pgd_idx, pmd_idx; - unsigned long vaddr; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - - vaddr = start; -@@ -162,8 +139,13 @@ 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++) { - one_page_table_init(pmd); -@@ -174,11 +156,23 @@ 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; - } - - /* -@@ -191,9 +185,10 @@ static void __init kernel_physical_mappi - unsigned long end_pfn, - int use_pse) - { -- int pgd_idx, pmd_idx, pte_ofs; -+ unsigned int pgd_idx, pmd_idx, pte_ofs; - unsigned long pfn; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned pages_2m, pages_4k; -@@ -223,8 +218,13 @@ repeat: - pfn = start_pfn; - pgd_idx = pgd_index((pfn<> PAGE_SHIFT); -+#endif - - if (pfn >= end_pfn) - continue; -@@ -236,14 +236,13 @@ 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 -@@ -253,11 +252,7 @@ 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++; -@@ -274,7 +269,7 @@ repeat: - pte_ofs = pte_index((pfn<> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 1; - if (!page_is_ram(pagenr)) - return 1; -@@ -460,7 +457,7 @@ void __init native_pagetable_setup_start - - pud = pud_offset(pgd, va); - pmd = pmd_offset(pud, va); -- if (!pmd_present(*pmd)) -+ if (!pmd_present(*pmd) || pmd_huge(*pmd)) - break; - - pte = pte_offset_kernel(pmd, va); -@@ -512,9 +509,7 @@ static void __init early_ioremap_page_ta - - static void __init pagetable_init(void) - { -- pgd_t *pgd_base = swapper_pg_dir; -- -- permanent_kmaps_init(pgd_base); -+ permanent_kmaps_init(swapper_pg_dir); - } - - #ifdef CONFIG_ACPI_SLEEP -@@ -522,12 +517,12 @@ static void __init pagetable_init(void) - * ACPI suspend needs this for resume, because things like the intel-agp - * driver might have split up a kernel 4MB mapping. - */ --char swsusp_pg_dir[PAGE_SIZE] -+pgd_t swsusp_pg_dir[PTRS_PER_PGD] - __attribute__ ((aligned(PAGE_SIZE))); - - static inline void save_pg_dir(void) - { -- memcpy(swsusp_pg_dir, swapper_pg_dir, PAGE_SIZE); -+ clone_pgd_range(swsusp_pg_dir, swapper_pg_dir, PTRS_PER_PGD); - } - #else /* !CONFIG_ACPI_SLEEP */ - static inline void save_pg_dir(void) -@@ -557,13 +552,11 @@ void zap_low_mappings(void) - - int nx_enabled; - --pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); -+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); - EXPORT_SYMBOL_GPL(__supported_pte_mask); - - #ifdef CONFIG_X86_PAE - --static int disable_nx __initdata; -- - /* - * noexec = on|off - * -@@ -572,40 +565,33 @@ static int disable_nx __initdata; - * on Enable - * off Disable - */ -+#if !defined(CONFIG_PAX_PAGEEXEC) - static int __init noexec_setup(char *str) - { - if (!str || !strcmp(str, "on")) { -- if (cpu_has_nx) { -- __supported_pte_mask |= _PAGE_NX; -- disable_nx = 0; -- } -+ if (cpu_has_nx) -+ nx_enabled = 1; - } else { -- if (!strcmp(str, "off")) { -- disable_nx = 1; -- __supported_pte_mask &= ~_PAGE_NX; -- } else { -+ if (!strcmp(str, "off")) -+ nx_enabled = 0; -+ else - return -EINVAL; -- } - } - - return 0; - } - early_param("noexec", noexec_setup); -+#endif - - static void __init set_nx(void) - { -- unsigned int v[4], l, h; -- -- if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) { -- cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]); -+ if (!nx_enabled && cpu_has_nx) { -+ unsigned l, h; - -- 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 -@@ -988,7 +974,7 @@ 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); -@@ -1034,10 +1020,10 @@ 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); - - #ifdef CONFIG_HIGHMEM -@@ -1166,6 +1152,46 @@ void free_init_pages(char *what, unsigne - - void free_initmem(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ /* PaX: limit KERNEL_CS to actual size */ -+ unsigned long addr, limit; -+ struct desc_struct d; -+ int cpu; -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+#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 -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -diff -urNp linux-2.6.28.8/arch/x86/mm/init_64.c linux-2.6.28.8/arch/x86/mm/init_64.c ---- linux-2.6.28.8/arch/x86/mm/init_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/init_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -175,6 +175,10 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pud = pud_page + pud_index(vaddr); - if (pud_none(*pud)) { - pmd = (pmd_t *) spp_getpage(); -@@ -196,8 +200,17 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig - } - - pte = pte_offset_kernel(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) -@@ -238,14 +251,12 @@ 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)); -@@ -886,7 +897,9 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to - */ - int devmem_is_allowed(unsigned long pagenr) - { -- if (pagenr <= 256) -+ if (!pagenr) -+ return 1; -+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 1; - if (!page_is_ram(pagenr)) - return 1; -@@ -977,6 +990,39 @@ void free_init_pages(char *what, unsigne - - void free_initmem(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long addr, end; -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+ /* 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))); -+ } -+ -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -@@ -1149,7 +1195,7 @@ 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-2.6.28.8/arch/x86/mm/ioremap.c linux-2.6.28.8/arch/x86/mm/ioremap.c ---- linux-2.6.28.8/arch/x86/mm/ioremap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/ioremap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -114,8 +114,8 @@ 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++) { -@@ -293,6 +293,8 @@ static void __iomem *__ioremap_caller(re - break; - } - -+ prot = canon_pgprot(prot); -+ - /* - * Ok, go for it.. - */ -@@ -508,7 +510,7 @@ 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 __initdata pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __aligned(PAGE_SIZE); - - static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) - { -@@ -523,7 +525,11 @@ static inline pmd_t * __init early_iorem - - static inline pte_t * __init early_ioremap_pte(unsigned long addr) - { -+#ifdef CONFIG_X86_32 - return &bm_pte[pte_index(addr)]; -+#else -+ return &level1_fixmap_pgt[pte_index(addr)]; -+#endif - } - - void __init early_ioremap_init(void) -@@ -534,8 +540,10 @@ void __init early_ioremap_init(void) - printk(KERN_INFO "early_ioremap_init()\n"); - - pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)); -+#ifdef CONFIG_X86_32 - memset(bm_pte, 0, sizeof(bm_pte)); - pmd_populate_kernel(&init_mm, pmd, bm_pte); -+#endif - - /* - * The boot-ioremap range spans multiple pmds, for which -diff -urNp linux-2.6.28.8/arch/x86/mm/mmap.c linux-2.6.28.8/arch/x86/mm/mmap.c ---- linux-2.6.28.8/arch/x86/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/mm/numa_32.c linux-2.6.28.8/arch/x86/mm/numa_32.c ---- linux-2.6.28.8/arch/x86/mm/numa_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/numa_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/mm/pageattr.c linux-2.6.28.8/arch/x86/mm/pageattr.c ---- linux-2.6.28.8/arch/x86/mm/pageattr.c 2009-02-20 22:26:38.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pageattr.c 2009-02-21 09:37:48.000000000 -0500 -@@ -20,6 +20,7 @@ - #include - #include - #include -+#include - - /* - * The current flushing context - we pass it instead of 5 arguments: -@@ -259,7 +260,7 @@ 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; - - /* -@@ -321,8 +322,20 @@ 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-2.6.28.8/arch/x86/mm/pageattr-test.c linux-2.6.28.8/arch/x86/mm/pageattr-test.c ---- linux-2.6.28.8/arch/x86/mm/pageattr-test.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pageattr-test.c 2009-03-07 10:35:39.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/mm/pat.c linux-2.6.28.8/arch/x86/mm/pat.c ---- linux-2.6.28.8/arch/x86/mm/pat.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pat.c 2009-03-07 14:05:58.000000000 -0500 -@@ -491,7 +491,7 @@ pgprot_t phys_mem_access_prot(struct fil - return vma_prot; - } - --#ifdef CONFIG_STRICT_DEVMEM -+#ifndef CONFIG_STRICT_DEVMEM - /* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/ - static inline int range_is_allowed(unsigned long pfn, unsigned long size) - { -diff -urNp linux-2.6.28.8/arch/x86/mm/pgtable_32.c linux-2.6.28.8/arch/x86/mm/pgtable_32.c ---- linux-2.6.28.8/arch/x86/mm/pgtable_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pgtable_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -31,6 +31,10 @@ 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(); -@@ -47,11 +51,20 @@ 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_present(&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-2.6.28.8/arch/x86/oprofile/backtrace.c linux-2.6.28.8/arch/x86/oprofile/backtrace.c ---- linux-2.6.28.8/arch/x86/oprofile/backtrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/oprofile/backtrace.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 = { -@@ -78,7 +78,7 @@ x86_backtrace(struct pt_regs * const reg - struct frame_head *head = (struct frame_head *)frame_pointer(regs); - unsigned long stack = kernel_trap_sp(regs); - -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - if (depth) - dump_trace(NULL, regs, (unsigned long *)stack, 0, - &backtrace_ops, &depth); -diff -urNp linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c ---- linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/pci/common.c linux-2.6.28.8/arch/x86/pci/common.c ---- linux-2.6.28.8/arch/x86/pci/common.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/common.c 2009-02-21 09:37:48.000000000 -0500 -@@ -362,7 +362,7 @@ static struct dmi_system_id __devinitdat - 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-2.6.28.8/arch/x86/pci/fixup.c linux-2.6.28.8/arch/x86/pci/fixup.c ---- linux-2.6.28.8/arch/x86/pci/fixup.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/fixup.c 2009-02-21 09:37:48.000000000 -0500 -@@ -365,7 +365,7 @@ static struct dmi_system_id __devinitdat - DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"), - }, - }, -- {} -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - /* -@@ -436,7 +436,7 @@ static struct dmi_system_id __devinitdat - 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-2.6.28.8/arch/x86/pci/irq.c linux-2.6.28.8/arch/x86/pci/irq.c ---- linux-2.6.28.8/arch/x86/pci/irq.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/irq.c 2009-02-21 09:37:48.000000000 -0500 -@@ -544,7 +544,7 @@ 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 */ -@@ -1148,7 +1148,7 @@ 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-2.6.28.8/arch/x86/pci/pcbios.c linux-2.6.28.8/arch/x86/pci/pcbios.c ---- linux-2.6.28.8/arch/x86/pci/pcbios.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/pcbios.c 2009-02-21 09:37:48.000000000 -0500 -@@ -57,50 +57,120 @@ 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) - { -@@ -109,11 +179,13 @@ 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:" -@@ -122,7 +194,8 @@ 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); - -@@ -166,7 +239,10 @@ 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:" -@@ -175,7 +251,8 @@ 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: -@@ -183,7 +260,10 @@ 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:" -@@ -192,7 +272,8 @@ 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: -@@ -200,7 +281,10 @@ 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:" -@@ -209,7 +293,8 @@ 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; - } - -@@ -232,7 +317,10 @@ 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:" -@@ -241,10 +329,14 @@ 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:" -@@ -253,10 +345,14 @@ 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:" -@@ -265,7 +361,8 @@ 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; - } - -@@ -369,10 +466,13 @@ 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:" -@@ -383,7 +483,8 @@ 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) -@@ -407,7 +508,10 @@ 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:" -@@ -415,7 +519,8 @@ 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-2.6.28.8/arch/x86/power/cpu_32.c linux-2.6.28.8/arch/x86/power/cpu_32.c ---- linux-2.6.28.8/arch/x86/power/cpu_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/power/cpu_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -67,7 +67,7 @@ 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-2.6.28.8/arch/x86/power/cpu_64.c linux-2.6.28.8/arch/x86/power/cpu_64.c ---- linux-2.6.28.8/arch/x86/power/cpu_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/power/cpu_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -143,7 +143,11 @@ 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 -@@ -152,8 +156,16 @@ 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-2.6.28.8/arch/x86/vdso/vdso32-setup.c linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c ---- linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/arch/x86/vdso/vma.c linux-2.6.28.8/arch/x86/vdso/vma.c ---- linux-2.6.28.8/arch/x86/vdso/vma.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/vdso/vma.c 2009-02-21 09:37:48.000000000 -0500 -@@ -123,7 +123,7 @@ 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; -diff -urNp linux-2.6.28.8/arch/x86/xen/enlighten.c linux-2.6.28.8/arch/x86/xen/enlighten.c ---- linux-2.6.28.8/arch/x86/xen/enlighten.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/xen/enlighten.c 2009-03-07 10:29:51.000000000 -0500 -@@ -318,7 +318,7 @@ static void xen_set_ldt(const void *addr - static void xen_load_gdt(const struct desc_ptr *dtr) - { - unsigned long *frames; -- unsigned long va = dtr->address; -+ unsigned long va = (unsigned long)dtr->address; - unsigned int size = dtr->size + 1; - unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE; - int f; -@@ -333,7 +333,7 @@ static void xen_load_gdt(const struct de - mcs = xen_mc_entry(sizeof(*frames) * pages); - frames = mcs.args; - -- for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) { -+ for (f = 0; va < (unsigned long)dtr->address + size; va += PAGE_SIZE, f++) { - frames[f] = virt_to_mfn(va); - make_lowmem_page_readonly((void *)va); - } -@@ -441,7 +441,7 @@ 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(); -@@ -1526,6 +1526,8 @@ static __init pgd_t *xen_setup_kernel_pa - 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); -@@ -1544,9 +1546,12 @@ static __init pgd_t *xen_setup_kernel_pa - 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-2.6.28.8/arch/x86/xen/smp.c linux-2.6.28.8/arch/x86/xen/smp.c ---- linux-2.6.28.8/arch/x86/xen/smp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/xen/smp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -171,11 +171,6 @@ 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(&per_cpu_var(gdt_page)); -- - 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-2.6.28.8/crypto/async_tx/async_tx.c linux-2.6.28.8/crypto/async_tx/async_tx.c ---- linux-2.6.28.8/crypto/async_tx/async_tx.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/crypto/async_tx/async_tx.c 2009-02-21 09:37:48.000000000 -0500 -@@ -358,8 +358,8 @@ async_tx_init(void) - err: - printk(KERN_ERR "async_tx: initialization failure\n"); - -- while (--cap >= 0) -- free_percpu(channel_table[cap]); -+ while (cap) -+ free_percpu(channel_table[--cap]); - - return 1; - } -diff -urNp linux-2.6.28.8/crypto/lrw.c linux-2.6.28.8/crypto/lrw.c ---- linux-2.6.28.8/crypto/lrw.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/crypto/lrw.c 2009-02-21 09:37:48.000000000 -0500 -@@ -54,7 +54,7 @@ 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-2.6.28.8/Documentation/dontdiff linux-2.6.28.8/Documentation/dontdiff ---- linux-2.6.28.8/Documentation/dontdiff 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/Documentation/dontdiff 2009-02-21 09:37:48.000000000 -0500 -@@ -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 -@@ -62,7 +67,6 @@ aic7*reg_print.c* - aic7*seq.h* - aicasm - aicdb.h* --asm - asm-offsets.h - asm_offsets.h - autoconf.h* -@@ -77,6 +81,7 @@ btfixupprep - build - bvmlinux - bzImage* -+capflags.c - classlist.h* - comp*.log - compile.h* -@@ -188,12 +193,15 @@ version.h* - vmlinux - vmlinux-* - vmlinux.aout -+vmlinux.bin.all - vmlinux.lds -+vmlinux.relocs - vsyscall.lds - vsyscall_32.lds - wanxlfw.inc - uImage - unifdef -+utsrelease.h - wakeup.bin - wakeup.elf - wakeup.lds -diff -urNp linux-2.6.28.8/drivers/acpi/blacklist.c linux-2.6.28.8/drivers/acpi/blacklist.c ---- linux-2.6.28.8/drivers/acpi/blacklist.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/blacklist.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/acpi/osl.c linux-2.6.28.8/drivers/acpi/osl.c ---- linux-2.6.28.8/drivers/acpi/osl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/osl.c 2009-02-21 09:37:48.000000000 -0500 -@@ -483,6 +483,8 @@ 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; - -@@ -511,6 +513,8 @@ 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-2.6.28.8/drivers/acpi/processor_core.c linux-2.6.28.8/drivers/acpi/processor_core.c ---- linux-2.6.28.8/drivers/acpi/processor_core.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/processor_core.c 2009-02-21 09:37:48.000000000 -0500 -@@ -678,7 +678,7 @@ 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-2.6.28.8/drivers/acpi/processor_idle.c linux-2.6.28.8/drivers/acpi/processor_idle.c ---- linux-2.6.28.8/drivers/acpi/processor_idle.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/processor_idle.c 2009-02-21 09:37:48.000000000 -0500 -@@ -181,7 +181,7 @@ 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}, - }; - - static inline u32 ticks_elapsed(u32 t1, u32 t2) -diff -urNp linux-2.6.28.8/drivers/acpi/tables/tbfadt.c linux-2.6.28.8/drivers/acpi/tables/tbfadt.c ---- linux-2.6.28.8/drivers/acpi/tables/tbfadt.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/tables/tbfadt.c 2009-02-21 09:37:48.000000000 -0500 -@@ -48,7 +48,7 @@ - ACPI_MODULE_NAME("tbfadt") - - /* Local prototypes */ --static void inline -+static inline void - acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address); - -@@ -122,7 +122,7 @@ static struct acpi_fadt_info fadt_info_t - * - ******************************************************************************/ - --static void inline -+static inline void - acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address) - { -diff -urNp linux-2.6.28.8/drivers/ata/ahci.c linux-2.6.28.8/drivers/ata/ahci.c ---- linux-2.6.28.8/drivers/ata/ahci.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ata/ahci.c 2009-02-21 09:37:48.000000000 -0500 -@@ -606,7 +606,7 @@ 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-2.6.28.8/drivers/ata/ata_piix.c linux-2.6.28.8/drivers/ata/ata_piix.c ---- linux-2.6.28.8/drivers/ata/ata_piix.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ata/ata_piix.c 2009-02-21 09:37:48.000000000 -0500 -@@ -289,7 +289,7 @@ 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 = { -@@ -593,7 +593,7 @@ static const struct ich_laptop ich_lapto - { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */ - { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */ - /* end marker */ -- { 0, } -+ { 0, 0, 0 } - }; - - /** -@@ -1052,7 +1052,7 @@ 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-2.6.28.8/drivers/ata/libata-core.c linux-2.6.28.8/drivers/ata/libata-core.c ---- linux-2.6.28.8/drivers/ata/libata-core.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/ata/libata-core.c 2009-03-07 10:29:51.000000000 -0500 -@@ -807,7 +807,7 @@ 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 } - }; - - /** -@@ -2983,7 +2983,7 @@ static const struct ata_timing ata_timin - { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 }, - { XFER_UDMA_6, 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) -@@ -4149,7 +4149,7 @@ static const struct ata_blacklist_entry - { "MTRON MSP-SATA*", NULL, ATA_HORKAGE_BRIDGE_OK, }, - - /* End Marker */ -- { } -+ { NULL, NULL, 0 } - }; - - static int strn_pattern_cmp(const char *patt, const char *name, int wildchar) -diff -urNp linux-2.6.28.8/drivers/char/agp/frontend.c linux-2.6.28.8/drivers/char/agp/frontend.c ---- linux-2.6.28.8/drivers/char/agp/frontend.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/agp/frontend.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/char/agp/intel-agp.c linux-2.6.28.8/drivers/char/agp/intel-agp.c ---- linux-2.6.28.8/drivers/char/agp/intel-agp.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/agp/intel-agp.c 2009-03-07 10:29:51.000000000 -0500 -@@ -2369,7 +2369,7 @@ 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-2.6.28.8/drivers/char/hpet.c linux-2.6.28.8/drivers/char/hpet.c ---- linux-2.6.28.8/drivers/char/hpet.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/hpet.c 2009-02-21 09:37:48.000000000 -0500 -@@ -975,7 +975,7 @@ 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-2.6.28.8/drivers/char/keyboard.c linux-2.6.28.8/drivers/char/keyboard.c ---- linux-2.6.28.8/drivers/char/keyboard.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/keyboard.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/char/mem.c linux-2.6.28.8/drivers/char/mem.c ---- linux-2.6.28.8/drivers/char/mem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/mem.c 2009-02-21 09:37:48.000000000 -0500 -@@ -18,6 +18,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -35,6 +36,10 @@ - # include - #endif - -+#ifdef CONFIG_GRKERNSEC -+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 -@@ -350,6 +360,11 @@ 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); -@@ -588,6 +603,11 @@ 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; -@@ -791,6 +811,16 @@ 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; - } - -@@ -798,7 +828,6 @@ 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 - -@@ -938,6 +967,11 @@ static int memory_open(struct inode * in - filp->f_op = &oldmem_fops; - break; - #endif -+#ifdef CONFIG_GRKERNSEC -+ case 13: -+ filp->f_op = &grsec_fops; -+ break; -+#endif - default: - unlock_kernel(); - return -ENXIO; -@@ -974,6 +1008,9 @@ static const struct { - #ifdef CONFIG_CRASH_DUMP - {12,"oldmem", S_IRUSR | S_IWUSR | S_IRGRP, &oldmem_fops}, - #endif -+#ifdef CONFIG_GRKERNSEC -+ {13,"grsec", S_IRUSR | S_IWUGO, &grsec_fops}, -+#endif - }; - - static struct class *mem_class; -diff -urNp linux-2.6.28.8/drivers/char/nvram.c linux-2.6.28.8/drivers/char/nvram.c ---- linux-2.6.28.8/drivers/char/nvram.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/nvram.c 2009-02-21 09:37:48.000000000 -0500 -@@ -433,7 +433,10 @@ 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 -diff -urNp linux-2.6.28.8/drivers/char/random.c linux-2.6.28.8/drivers/char/random.c ---- linux-2.6.28.8/drivers/char/random.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/random.c 2009-02-21 09:37:48.000000000 -0500 -@@ -249,8 +249,13 @@ - /* - * 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 - - /* -@@ -287,10 +292,17 @@ 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 }, -@@ -1185,7 +1197,7 @@ 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-2.6.28.8/drivers/char/tpm/tpm.c linux-2.6.28.8/drivers/char/tpm/tpm.c ---- linux-2.6.28.8/drivers/char/tpm/tpm.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/tpm/tpm.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1035,7 +1035,7 @@ ssize_t tpm_write(struct file *file, con - - mutex_lock(&chip->buffer_mutex); - -- if (in_size > TPM_BUFSIZE) -+ if (in_size > (unsigned int)TPM_BUFSIZE) - in_size = TPM_BUFSIZE; - - if (copy_from_user -diff -urNp linux-2.6.28.8/drivers/char/vt_ioctl.c linux-2.6.28.8/drivers/char/vt_ioctl.c ---- linux-2.6.28.8/drivers/char/vt_ioctl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/vt_ioctl.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/edac/edac_core.h linux-2.6.28.8/drivers/edac/edac_core.h ---- linux-2.6.28.8/drivers/edac/edac_core.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/edac/edac_core.h 2009-02-21 09:37:48.000000000 -0500 -@@ -85,11 +85,11 @@ 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-2.6.28.8/drivers/firmware/dmi_scan.c linux-2.6.28.8/drivers/firmware/dmi_scan.c ---- linux-2.6.28.8/drivers/firmware/dmi_scan.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/firmware/dmi_scan.c 2009-02-21 09:37:48.000000000 -0500 -@@ -389,11 +389,6 @@ 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-2.6.28.8/drivers/hwmon/fscpos.c linux-2.6.28.8/drivers/hwmon/fscpos.c ---- linux-2.6.28.8/drivers/hwmon/fscpos.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/fscpos.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/hwmon/k8temp.c linux-2.6.28.8/drivers/hwmon/k8temp.c ---- linux-2.6.28.8/drivers/hwmon/k8temp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/k8temp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -130,7 +130,7 @@ 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-2.6.28.8/drivers/hwmon/sis5595.c linux-2.6.28.8/drivers/hwmon/sis5595.c ---- linux-2.6.28.8/drivers/hwmon/sis5595.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/sis5595.c 2009-02-21 09:37:48.000000000 -0500 -@@ -698,7 +698,7 @@ 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-2.6.28.8/drivers/hwmon/via686a.c linux-2.6.28.8/drivers/hwmon/via686a.c ---- linux-2.6.28.8/drivers/hwmon/via686a.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/via686a.c 2009-02-21 09:37:48.000000000 -0500 -@@ -768,7 +768,7 @@ 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-2.6.28.8/drivers/hwmon/vt8231.c linux-2.6.28.8/drivers/hwmon/vt8231.c ---- linux-2.6.28.8/drivers/hwmon/vt8231.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/vt8231.c 2009-02-21 09:37:48.000000000 -0500 -@@ -698,7 +698,7 @@ 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-2.6.28.8/drivers/hwmon/w83791d.c linux-2.6.28.8/drivers/hwmon/w83791d.c ---- linux-2.6.28.8/drivers/hwmon/w83791d.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/w83791d.c 2009-02-21 09:37:48.000000000 -0500 -@@ -327,8 +327,8 @@ 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-2.6.28.8/drivers/i2c/busses/i2c-i801.c linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/i2c/busses/i2c-piix4.c linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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, -@@ -424,7 +424,7 @@ static struct pci_device_id piix4_ids[] - PCI_DEVICE_ID_SERVERWORKS_CSB6) }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_HT1000SB) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, piix4_ids); -diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c 2009-02-21 09:37:48.000000000 -0500 -@@ -472,7 +472,7 @@ 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-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c 2009-02-21 09:37:48.000000000 -0500 -@@ -248,7 +248,7 @@ 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-2.6.28.8/drivers/ieee1394/dv1394.c linux-2.6.28.8/drivers/ieee1394/dv1394.c ---- linux-2.6.28.8/drivers/ieee1394/dv1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/dv1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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 struct ieee1394_device_id dv1394_ - .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-2.6.28.8/drivers/ieee1394/eth1394.c linux-2.6.28.8/drivers/ieee1394/eth1394.c ---- linux-2.6.28.8/drivers/ieee1394/eth1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/eth1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -451,7 +451,7 @@ static struct ieee1394_device_id eth1394 - .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-2.6.28.8/drivers/ieee1394/hosts.c linux-2.6.28.8/drivers/ieee1394/hosts.c ---- linux-2.6.28.8/drivers/ieee1394/hosts.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/hosts.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/ieee1394/ohci1394.c linux-2.6.28.8/drivers/ieee1394/ohci1394.c ---- linux-2.6.28.8/drivers/ieee1394/ohci1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/ohci1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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); -@@ -3437,7 +3437,7 @@ 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-2.6.28.8/drivers/ieee1394/raw1394.c linux-2.6.28.8/drivers/ieee1394/raw1394.c ---- linux-2.6.28.8/drivers/ieee1394/raw1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/raw1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -2995,7 +2995,7 @@ static struct ieee1394_device_id raw1394 - .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-2.6.28.8/drivers/ieee1394/sbp2.c linux-2.6.28.8/drivers/ieee1394/sbp2.c ---- linux-2.6.28.8/drivers/ieee1394/sbp2.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/sbp2.c 2009-02-21 09:37:48.000000000 -0500 -@@ -290,7 +290,7 @@ static struct ieee1394_device_id sbp2_id - .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); - -@@ -2110,7 +2110,7 @@ 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-2.6.28.8/drivers/ieee1394/video1394.c linux-2.6.28.8/drivers/ieee1394/video1394.c ---- linux-2.6.28.8/drivers/ieee1394/video1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/video1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1310,7 +1310,7 @@ static struct ieee1394_device_id video13 - .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-2.6.28.8/drivers/input/keyboard/atkbd.c linux-2.6.28.8/drivers/input/keyboard/atkbd.c ---- linux-2.6.28.8/drivers/input/keyboard/atkbd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/keyboard/atkbd.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1164,7 +1164,7 @@ 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-2.6.28.8/drivers/input/mouse/lifebook.c linux-2.6.28.8/drivers/input/mouse/lifebook.c ---- linux-2.6.28.8/drivers/input/mouse/lifebook.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mouse/lifebook.c 2009-02-21 09:37:48.000000000 -0500 -@@ -110,7 +110,7 @@ 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-2.6.28.8/drivers/input/mouse/psmouse-base.c linux-2.6.28.8/drivers/input/mouse/psmouse-base.c ---- linux-2.6.28.8/drivers/input/mouse/psmouse-base.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mouse/psmouse-base.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/input/mouse/synaptics.c linux-2.6.28.8/drivers/input/mouse/synaptics.c ---- linux-2.6.28.8/drivers/input/mouse/synaptics.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mouse/synaptics.c 2009-02-21 09:37:48.000000000 -0500 -@@ -417,7 +417,7 @@ 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)) -@@ -624,7 +624,7 @@ 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-2.6.28.8/drivers/input/mousedev.c linux-2.6.28.8/drivers/input/mousedev.c ---- linux-2.6.28.8/drivers/input/mousedev.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mousedev.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1063,7 +1063,7 @@ 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-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h ---- linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h 2009-02-21 09:37:48.000000000 -0500 -@@ -143,7 +143,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_VERSION, "M606"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - /* -@@ -351,7 +351,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - #ifdef CONFIG_PNP -@@ -363,7 +363,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -@@ -430,7 +430,7 @@ 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-2.6.28.8/drivers/input/serio/serio_raw.c linux-2.6.28.8/drivers/input/serio/serio_raw.c ---- linux-2.6.28.8/drivers/input/serio/serio_raw.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/serio/serio_raw.c 2009-02-21 09:37:48.000000000 -0500 -@@ -378,7 +378,7 @@ 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-2.6.28.8/drivers/lguest/core.c linux-2.6.28.8/drivers/lguest/core.c ---- linux-2.6.28.8/drivers/lguest/core.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/lguest/core.c 2009-03-07 10:28:24.000000000 -0500 -@@ -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-2.6.28.8/drivers/md/bitmap.c linux-2.6.28.8/drivers/md/bitmap.c ---- linux-2.6.28.8/drivers/md/bitmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/md/bitmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -57,7 +57,7 @@ - # 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-2.6.28.8/drivers/mtd/devices/doc2000.c linux-2.6.28.8/drivers/mtd/devices/doc2000.c ---- linux-2.6.28.8/drivers/mtd/devices/doc2000.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/devices/doc2000.c 2009-02-21 09:37:48.000000000 -0500 -@@ -777,7 +777,7 @@ 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-2.6.28.8/drivers/mtd/devices/doc2001.c linux-2.6.28.8/drivers/mtd/devices/doc2001.c ---- linux-2.6.28.8/drivers/mtd/devices/doc2001.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/devices/doc2001.c 2009-02-21 09:37:48.000000000 -0500 -@@ -396,6 +396,8 @@ 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-2.6.28.8/drivers/mtd/devices/slram.c linux-2.6.28.8/drivers/mtd/devices/slram.c ---- linux-2.6.28.8/drivers/mtd/devices/slram.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/devices/slram.c 2009-02-21 09:37:48.000000000 -0500 -@@ -273,7 +273,7 @@ static int parse_cmdline(char *devname, - } - T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n", - devname, devstart, devlength); -- if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) { -+ if (devlength % SLRAM_BLK_SZ != 0) { - E("slram: Illegal start / length parameter.\n"); - return(-EINVAL); - } -diff -urNp linux-2.6.28.8/drivers/mtd/ubi/build.c linux-2.6.28.8/drivers/mtd/ubi/build.c ---- linux-2.6.28.8/drivers/mtd/ubi/build.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/ubi/build.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1104,7 +1104,7 @@ 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-2.6.28.8/drivers/net/eepro100.c linux-2.6.28.8/drivers/net/eepro100.c ---- linux-2.6.28.8/drivers/net/eepro100.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/eepro100.c 2009-02-21 09:37:48.000000000 -0500 -@@ -47,7 +47,7 @@ static int rxdmacount /* = 0 */; - # define rx_align(skb) skb_reserve((skb), 2) - # define RxFD_ALIGNMENT __attribute__ ((aligned (2), packed)) - #else --# define rx_align(skb) -+# define rx_align(skb) do {} while (0) - # define RxFD_ALIGNMENT - #endif - -@@ -2334,33 +2334,33 @@ static void __devexit eepro100_remove_on - } - - static struct pci_device_id eepro100_pci_tbl[] = { -- { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, }, -- { 0,} -+ { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, eepro100_pci_tbl); - -diff -urNp linux-2.6.28.8/drivers/net/irda/vlsi_ir.c linux-2.6.28.8/drivers/net/irda/vlsi_ir.c ---- linux-2.6.28.8/drivers/net/irda/vlsi_ir.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/irda/vlsi_ir.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/net/pcnet32.c linux-2.6.28.8/drivers/net/pcnet32.c ---- linux-2.6.28.8/drivers/net/pcnet32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/pcnet32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/net/tg3.h linux-2.6.28.8/drivers/net/tg3.h ---- linux-2.6.28.8/drivers/net/tg3.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/tg3.h 2009-02-21 09:37:48.000000000 -0500 -@@ -102,6 +102,7 @@ - #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-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c ---- linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-21 09:37:48.000000000 -0500 -@@ -785,7 +785,7 @@ static int iwl3945_send_cmd_sync(struct - IWL_ERROR("Error: Response NULL in '%s'\n", - get_cmd_string(cmd->id)); - ret = -EIO; -- goto out; -+ goto cancel; - } - - ret = 0; -diff -urNp linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c ---- linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c ---- linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c 2009-02-21 09:37:48.000000000 -0500 -@@ -59,7 +59,7 @@ static struct pcie_port_service_id aer_i - .port_type = PCIE_RC_PORT, - .service_type = PCIE_PORT_SERVICE_AER, - }, -- { /* end: all zeroes */ } -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - static struct pci_error_handlers aer_error_handlers = { -diff -urNp linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c ---- linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c 2009-03-07 10:29:51.000000000 -0500 -@@ -667,7 +667,7 @@ 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-2.6.28.8/drivers/pci/pcie/portdrv_pci.c linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c ---- linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c 2009-03-07 10:29:51.000000000 -0500 -@@ -263,7 +263,7 @@ 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-2.6.28.8/drivers/pci/proc.c linux-2.6.28.8/drivers/pci/proc.c ---- linux-2.6.28.8/drivers/pci/proc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/proc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -470,7 +470,16 @@ 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-2.6.28.8/drivers/pcmcia/ti113x.h linux-2.6.28.8/drivers/pcmcia/ti113x.h ---- linux-2.6.28.8/drivers/pcmcia/ti113x.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pcmcia/ti113x.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/pcmcia/yenta_socket.c linux-2.6.28.8/drivers/pcmcia/yenta_socket.c ---- linux-2.6.28.8/drivers/pcmcia/yenta_socket.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pcmcia/yenta_socket.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c ---- linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/pnp/quirks.c linux-2.6.28.8/drivers/pnp/quirks.c ---- linux-2.6.28.8/drivers/pnp/quirks.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pnp/quirks.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/pnp/resource.c linux-2.6.28.8/drivers/pnp/resource.c ---- linux-2.6.28.8/drivers/pnp/resource.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pnp/resource.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/scsi/scsi_logging.h linux-2.6.28.8/drivers/scsi/scsi_logging.h ---- linux-2.6.28.8/drivers/scsi/scsi_logging.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/scsi/scsi_logging.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/serial/8250_pci.c linux-2.6.28.8/drivers/serial/8250_pci.c ---- linux-2.6.28.8/drivers/serial/8250_pci.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/serial/8250_pci.c 2009-03-07 10:29:51.000000000 -0500 -@@ -3138,7 +3138,7 @@ 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-2.6.28.8/drivers/usb/class/cdc-acm.c linux-2.6.28.8/drivers/usb/class/cdc-acm.c ---- linux-2.6.28.8/drivers/usb/class/cdc-acm.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/class/cdc-acm.c 2009-03-07 10:29:51.000000000 -0500 -@@ -1388,7 +1388,7 @@ 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-2.6.28.8/drivers/usb/class/usblp.c linux-2.6.28.8/drivers/usb/class/usblp.c ---- linux-2.6.28.8/drivers/usb/class/usblp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/class/usblp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -227,7 +227,7 @@ static const struct quirk_printer_struct - { 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */ - { 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut */ - { 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); -@@ -1402,7 +1402,7 @@ 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-2.6.28.8/drivers/usb/core/hub.c linux-2.6.28.8/drivers/usb/core/hub.c ---- linux-2.6.28.8/drivers/usb/core/hub.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/core/hub.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/usb/host/ehci-pci.c linux-2.6.28.8/drivers/usb/host/ehci-pci.c ---- linux-2.6.28.8/drivers/usb/host/ehci-pci.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/host/ehci-pci.c 2009-02-21 09:37:48.000000000 -0500 -@@ -414,7 +414,7 @@ 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-2.6.28.8/drivers/usb/host/uhci-hcd.c linux-2.6.28.8/drivers/usb/host/uhci-hcd.c ---- linux-2.6.28.8/drivers/usb/host/uhci-hcd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/host/uhci-hcd.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/usb/storage/debug.h linux-2.6.28.8/drivers/usb/storage/debug.h ---- linux-2.6.28.8/drivers/usb/storage/debug.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/storage/debug.h 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/usb/storage/usb.c linux-2.6.28.8/drivers/usb/storage/usb.c ---- linux-2.6.28.8/drivers/usb/storage/usb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/storage/usb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -139,7 +139,7 @@ static struct usb_device_id storage_usb_ - #undef COMPLIANT_DEV - #undef USUAL_DEV - /* Terminating entry */ -- { } -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (usb, storage_usb_ids); -@@ -182,7 +182,7 @@ static struct us_unusual_dev us_unusual_ - # undef USUAL_DEV - - /* Terminating entry */ -- { NULL } -+ { NULL, NULL, 0, 0, NULL } - }; - - -diff -urNp linux-2.6.28.8/drivers/uwb/wlp/messages.c linux-2.6.28.8/drivers/uwb/wlp/messages.c ---- linux-2.6.28.8/drivers/uwb/wlp/messages.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/uwb/wlp/messages.c 2009-02-21 09:37:48.000000000 -0500 -@@ -988,7 +988,7 @@ 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-2.6.28.8/drivers/video/fbcmap.c linux-2.6.28.8/drivers/video/fbcmap.c ---- linux-2.6.28.8/drivers/video/fbcmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/fbcmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -250,8 +250,7 @@ int fb_set_user_cmap(struct fb_cmap_user - int rc, size = cmap->len * sizeof(u16); - struct fb_cmap umap; - -- if (cmap->start < 0 || (!info->fbops->fb_setcolreg && -- !info->fbops->fb_setcmap)) -+ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) - return -EINVAL; - - memset(&umap, 0, sizeof(struct fb_cmap)); -diff -urNp linux-2.6.28.8/drivers/video/fbmem.c linux-2.6.28.8/drivers/video/fbmem.c ---- linux-2.6.28.8/drivers/video/fbmem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/fbmem.c 2009-02-21 09:37:48.000000000 -0500 -@@ -393,7 +393,7 @@ 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; - } -@@ -405,7 +405,7 @@ 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; - } -@@ -1090,7 +1090,7 @@ static long do_fb_ioctl(struct fb_info * - ret = -EINVAL; - break; - } -- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) { -+ if (con2fb.framebuffer >= FB_MAX) { - ret = -EINVAL; - break; - } -diff -urNp linux-2.6.28.8/drivers/video/fbmon.c linux-2.6.28.8/drivers/video/fbmon.c ---- linux-2.6.28.8/drivers/video/fbmon.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/fbmon.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/video/i810/i810_accel.c linux-2.6.28.8/drivers/video/i810/i810_accel.c ---- linux-2.6.28.8/drivers/video/i810/i810_accel.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/i810/i810_accel.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/video/i810/i810_main.c linux-2.6.28.8/drivers/video/i810/i810_main.c ---- linux-2.6.28.8/drivers/video/i810/i810_main.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/i810/i810_main.c 2009-03-07 14:10:58.000000000 -0500 -@@ -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-2.6.28.8/drivers/video/modedb.c linux-2.6.28.8/drivers/video/modedb.c ---- linux-2.6.28.8/drivers/video/modedb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/modedb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -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-2.6.28.8/drivers/video/uvesafb.c linux-2.6.28.8/drivers/video/uvesafb.c ---- linux-2.6.28.8/drivers/video/uvesafb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/uvesafb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -18,6 +18,7 @@ - #include - #include - #include -+#include - #include