main/openssl: refresh padlock patches

The new feature is support for VIA Nano Padlock in 64-bit mode.

1 files changed, 203 insertions, 0 deletions

diff --git a/main/openssl/0003-engines-e_padlock-backport-cvs-head-changes.patch b/main/openssl/0003-engines-e_padlock-backport-cvs-head-changes.patch
new file mode 100644
index 0000000000..a590269b99
--- /dev/null
+++ b/main/openssl/0003-engines-e_padlock-backport-cvs-head-changes.patch
@@ -0,0 +1,203 @@
+From 1d27eeb41fbc2e8f36f156d4d66d04486afee742 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
+Date: Wed, 28 Jul 2010 08:29:09 +0300
+Subject: [PATCH 3/5] engines/e_padlock: backport cvs head changes
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Includes support for VIA Nano 64-bit mode.
+
+Signed-off-by: Timo Teräs <timo.teras@iki.fi>
+---
+ engines/e_padlock.c |  140 ++++++++++++++++++++++++++++++++++++++++++++-------
+ 1 files changed, 122 insertions(+), 18 deletions(-)
+
+diff --git a/engines/e_padlock.c b/engines/e_padlock.c
+index 381a746..4300f35 100644
+--- a/engines/e_padlock.c
++++ b/engines/e_padlock.c
+@@ -101,7 +101,10 @@
+    compiler choice is limited to GCC and Microsoft C. */
+ #undef COMPILE_HW_PADLOCK
+ #if !defined(I386_ONLY) && !defined(OPENSSL_NO_INLINE_ASM)
+-# if (defined(__GNUC__) && (defined(__i386__) || defined(__i386))) || \
++# if (defined(__GNUC__) && __GNUC__>=2 && \
++	(defined(__i386__) || defined(__i386) || \
++	 defined(__x86_64__) || defined(__x86_64)) \
++     ) || \
+      (defined(_MSC_VER) && defined(_M_IX86))
+ #  define COMPILE_HW_PADLOCK
+ static ENGINE *ENGINE_padlock (void);
+@@ -294,6 +297,7 @@ static volatile struct padlock_cipher_data *padlock_saved_context;
+  * =======================================================
+  */
+ #if defined(__GNUC__) && __GNUC__>=2
++#if defined(__i386__) || defined(__i386)
+ /*
+  * As for excessive "push %ebx"/"pop %ebx" found all over.
+  * When generating position-independent code GCC won't let
+@@ -373,21 +377,6 @@ padlock_available(void)
+ 	return padlock_use_ace + padlock_use_rng;
+ }
+ 
+-#ifndef OPENSSL_NO_AES
+-/* Our own htonl()/ntohl() */
+-static inline void
+-padlock_bswapl(AES_KEY *ks)
+-{
+-	size_t i = sizeof(ks->rd_key)/sizeof(ks->rd_key[0]);
+-	unsigned int *key = ks->rd_key;
+-
+-	while (i--) {
+-		asm volatile ("bswapl %0" : "+r"(*key));
+-		key++;
+-	}
+-}
+-#endif
+-
+ /* Force key reload from memory to the CPU microcode.
+    Loading EFLAGS from the stack clears EFLAGS[30] 
+    which does the trick. */
+@@ -445,12 +434,127 @@ static inline void *name(size_t cnt,		\
+ 		: "edx", "cc", "memory");	\
+ 	return iv;				\
+ }
++#endif
++
++#elif defined(__x86_64__) || defined(__x86_64)
++
++/* Load supported features of the CPU to see if
++   the PadLock is available. */
++static int
++padlock_available(void)
++{
++	char vendor_string[16];
++	unsigned int eax, edx;
+ 
++	/* Are we running on the Centaur (VIA) CPU? */
++	eax = 0x00000000;
++	vendor_string[12] = 0;
++	asm volatile (
++		"cpuid\n"
++		"movl	%%ebx,(%1)\n"
++		"movl	%%edx,4(%1)\n"
++		"movl	%%ecx,8(%1)\n"
++		: "+a"(eax) : "r"(vendor_string) : "rbx", "rcx", "rdx");
++	if (strcmp(vendor_string, "CentaurHauls") != 0)
++		return 0;
++
++	/* Check for Centaur Extended Feature Flags presence */
++	eax = 0xC0000000;
++	asm volatile ("cpuid"
++		: "+a"(eax) : : "rbx", "rcx", "rdx");
++	if (eax < 0xC0000001)
++		return 0;
++
++	/* Read the Centaur Extended Feature Flags */
++	eax = 0xC0000001;
++	asm volatile ("cpuid"
++		: "+a"(eax), "=d"(edx) : : "rbx", "rcx");
++
++	/* Fill up some flags */
++	padlock_use_ace = ((edx & (0x3<<6)) == (0x3<<6));
++	padlock_use_rng = ((edx & (0x3<<2)) == (0x3<<2));
++
++	return padlock_use_ace + padlock_use_rng;
++}
++
++/* Force key reload from memory to the CPU microcode.
++   Loading EFLAGS from the stack clears EFLAGS[30] 
++   which does the trick. */
++static inline void
++padlock_reload_key(void)
++{
++	asm volatile ("pushfq; popfq");
++}
++
++#ifndef OPENSSL_NO_AES
++/*
++ * This is heuristic key context tracing. At first one
++ * believes that one should use atomic swap instructions,
++ * but it's not actually necessary. Point is that if
++ * padlock_saved_context was changed by another thread
++ * after we've read it and before we compare it with cdata,
++ * our key *shall* be reloaded upon thread context switch
++ * and we are therefore set in either case...
++ */
++static inline void
++padlock_verify_context(struct padlock_cipher_data *cdata)
++{
++	asm volatile (
++	"pushfq\n"
++"	btl	$30,(%%rsp)\n"
++"	jnc	1f\n"
++"	cmpq	%2,%1\n"
++"	je	1f\n"
++"	popfq\n"
++"	subq	$8,%%rsp\n"
++"1:	addq	$8,%%rsp\n"
++"	movq	%2,%0"
++	:"+m"(padlock_saved_context)
++	: "r"(padlock_saved_context), "r"(cdata) : "cc");
++}
++
++/* Template for padlock_xcrypt_* modes */
++/* BIG FAT WARNING: 
++ * 	The offsets used with 'leal' instructions
++ * 	describe items of the 'padlock_cipher_data'
++ * 	structure.
++ */
++#define PADLOCK_XCRYPT_ASM(name,rep_xcrypt)	\
++static inline void *name(size_t cnt,		\
++	struct padlock_cipher_data *cdata,	\
++	void *out, const void *inp) 		\
++{	void *iv; 				\
++	asm volatile ( "leaq	16(%0),%%rdx\n"	\
++		"	leaq	32(%0),%%rbx\n"	\
++			rep_xcrypt "\n"		\
++		: "=a"(iv), "=c"(cnt), "=D"(out), "=S"(inp) \
++		: "0"(cdata), "1"(cnt), "2"(out), "3"(inp)  \
++		: "rbx", "rdx", "cc", "memory");	\
++	return iv;				\
++}
++#endif
++
++#endif	/* cpu */
++
++#ifndef OPENSSL_NO_AES
+ /* Generate all functions with appropriate opcodes */
+ PADLOCK_XCRYPT_ASM(padlock_xcrypt_ecb, ".byte 0xf3,0x0f,0xa7,0xc8")	/* rep xcryptecb */
+ PADLOCK_XCRYPT_ASM(padlock_xcrypt_cbc, ".byte 0xf3,0x0f,0xa7,0xd0")	/* rep xcryptcbc */
+ PADLOCK_XCRYPT_ASM(padlock_xcrypt_cfb, ".byte 0xf3,0x0f,0xa7,0xe0")	/* rep xcryptcfb */
+ PADLOCK_XCRYPT_ASM(padlock_xcrypt_ofb, ".byte 0xf3,0x0f,0xa7,0xe8")	/* rep xcryptofb */
++
++/* Our own htonl()/ntohl() */
++static inline void
++padlock_bswapl(AES_KEY *ks)
++{
++	size_t i = sizeof(ks->rd_key)/sizeof(ks->rd_key[0]);
++	unsigned int *key = ks->rd_key;
++
++	while (i--) {
++		asm volatile ("bswapl %0" : "+r"(*key));
++		key++;
++	}
++}
+ #endif
+ 
+ /* The RNG call itself */
+@@ -481,8 +585,8 @@ padlock_xstore(void *addr, unsigned int edx_in)
+ static inline unsigned char *
+ padlock_memcpy(void *dst,const void *src,size_t n)
+ {
+-	long       *d=dst;
+-	const long *s=src;
++	size_t       *d=dst;
++	const size_t *s=src;
+ 
+ 	n /= sizeof(*d);
+ 	do { *d++ = *s++; } while (--n);
+-- 
+1.7.0.4
+