diff options
Diffstat (limited to 'system/openssl/1002-backport-changes-from-upstream-padlock-module.patch')
| -rw-r--r-- | system/openssl/1002-backport-changes-from-upstream-padlock-module.patch | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/system/openssl/1002-backport-changes-from-upstream-padlock-module.patch b/system/openssl/1002-backport-changes-from-upstream-padlock-module.patch new file mode 100644 index 000000000..f63bbcd1c --- /dev/null +++ b/system/openssl/1002-backport-changes-from-upstream-padlock-module.patch @@ -0,0 +1,200 @@ +From ba17588a940ee712c3ef6d458adb1087f0c84521 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi> +Date: Thu, 5 Feb 2015 09:28:10 +0200 +Subject: [PATCH] backport changes from upstream padlock module. +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 | 142 +++++++++++++++++++++++++++++++++++++++++++++------- + 1 file changed, 125 insertions(+), 17 deletions(-) + +diff --git a/engines/e_padlock.c b/engines/e_padlock.c +index 2898e4c..94406cb 100644 +--- a/engines/e_padlock.c ++++ b/engines/e_padlock.c +@@ -101,7 +101,10 @@ + */ + # 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 + # endif +@@ -303,6 +306,7 @@ 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 +@@ -379,22 +383,6 @@ static int padlock_available(void) + return padlock_use_ace + padlock_use_rng; + } + +-# ifndef OPENSSL_NO_AES +-# ifndef AES_ASM +-/* 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 +-# endif +- + /* + * Force key reload from memory to the CPU microcode. Loading EFLAGS from the + * stack clears EFLAGS[30] which does the trick. +@@ -448,6 +436,110 @@ 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 */ + /* rep xcryptecb */ +@@ -458,7 +550,23 @@ PADLOCK_XCRYPT_ASM(padlock_xcrypt_ecb, ".byte 0xf3,0x0f,0xa7,0xc8") + PADLOCK_XCRYPT_ASM(padlock_xcrypt_cfb, ".byte 0xf3,0x0f,0xa7,0xe0") + /* rep xcryptofb */ + PADLOCK_XCRYPT_ASM(padlock_xcrypt_ofb, ".byte 0xf3,0x0f,0xa7,0xe8") ++ ++# ifndef AES_ASM ++/* 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 ++ + # endif ++ + /* The RNG call itself */ + static inline unsigned int padlock_xstore(void *addr, unsigned int edx_in) + { +-- +2.2.2 + |