diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-13 22:24:35 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-13 22:24:35 (GMT) |
| commit | 8d0968abd03ec6b407df117adc773562386702fa (patch) | |
| tree | 61ec7f0eb052af3d7da83dee9605b1fc0fae0f57 /drivers/crypto/padlock-sha.c | |
| parent | 9ea319b61613085f501a79cf8d405cb221d084f3 (diff) | |
| parent | e49140120c88eb99db1a9172d9ac224c0f2bbdd2 (diff) | |
| download | linux-fsl-qoriq-8d0968abd03ec6b407df117adc773562386702fa.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore()
crypto: hash - Add missing top-level functions
crypto: hash - Fix digest size check for digest type
crypto: tcrypt - Fix AEAD chunk testing
crypto: talitos - Add handling for SEC 3.x treatment of link table
Diffstat (limited to 'drivers/crypto/padlock-sha.c')
| -rw-r--r-- | drivers/crypto/padlock-sha.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c index 40d5680..a7fbade 100644 --- a/drivers/crypto/padlock-sha.c +++ b/drivers/crypto/padlock-sha.c @@ -22,6 +22,7 @@ #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/scatterlist.h> +#include <asm/i387.h> #include "padlock.h" #define SHA1_DEFAULT_FALLBACK "sha1-generic" @@ -102,6 +103,7 @@ static void padlock_do_sha1(const char *in, char *out, int count) * PadLock microcode needs it that big. */ char buf[128+16]; char *result = NEAREST_ALIGNED(buf); + int ts_state; ((uint32_t *)result)[0] = SHA1_H0; ((uint32_t *)result)[1] = SHA1_H1; @@ -109,9 +111,12 @@ static void padlock_do_sha1(const char *in, char *out, int count) ((uint32_t *)result)[3] = SHA1_H3; ((uint32_t *)result)[4] = SHA1_H4; + /* prevent taking the spurious DNA fault with padlock. */ + ts_state = irq_ts_save(); asm volatile (".byte 0xf3,0x0f,0xa6,0xc8" /* rep xsha1 */ : "+S"(in), "+D"(result) : "c"(count), "a"(0)); + irq_ts_restore(ts_state); padlock_output_block((uint32_t *)result, (uint32_t *)out, 5); } @@ -123,6 +128,7 @@ static void padlock_do_sha256(const char *in, char *out, int count) * PadLock microcode needs it that big. */ char buf[128+16]; char *result = NEAREST_ALIGNED(buf); + int ts_state; ((uint32_t *)result)[0] = SHA256_H0; ((uint32_t *)result)[1] = SHA256_H1; @@ -133,9 +139,12 @@ static void padlock_do_sha256(const char *in, char *out, int count) ((uint32_t *)result)[6] = SHA256_H6; ((uint32_t *)result)[7] = SHA256_H7; + /* prevent taking the spurious DNA fault with padlock. */ + ts_state = irq_ts_save(); asm volatile (".byte 0xf3,0x0f,0xa6,0xd0" /* rep xsha256 */ : "+S"(in), "+D"(result) : "c"(count), "a"(0)); + irq_ts_restore(ts_state); padlock_output_block((uint32_t *)result, (uint32_t *)out, 8); } |