diff options
| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-10-13 10:11:02 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-10-17 18:40:33 +0200 |
| commit | 15b6c7d3b7e2726b71be3331e881863eb7602826 (patch) | |
| tree | 3c492fc587cfc8ea0c4effc3312cdc704ec93ee4 /src | |
| parent | 2edd12fe22946cce7ef4cf588e8f31faf745b5f4 (diff) | |
| download | VeraCrypt-15b6c7d3b7e2726b71be3331e881863eb7602826.tar.gz VeraCrypt-15b6c7d3b7e2726b71be3331e881863eb7602826.zip | |
Implement detection of new CPU features: AVX2 and BMI2
Diffstat (limited to 'src')
| -rw-r--r-- | src/Crypto/cpu.c | 4 | ||||
| -rw-r--r-- | src/Crypto/cpu.h | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/src/Crypto/cpu.c b/src/Crypto/cpu.c index ed1f5933..7a4656d4 100644 --- a/src/Crypto/cpu.c +++ b/src/Crypto/cpu.c @@ -189,7 +189,7 @@ static int TrySSE2() int g_x86DetectionDone = 0; int g_hasISSE = 0, g_hasSSE2 = 0, g_hasSSSE3 = 0, g_hasMMX = 0, g_hasAESNI = 0, g_hasCLMUL = 0, g_isP4 = 0; -int g_hasAVX = 0, g_hasSSE42 = 0, g_hasSSE41 = 0; +int g_hasAVX = 0, g_hasAVX2 = 0, g_hasBMI2 = 0, g_hasSSE42 = 0, g_hasSSE41 = 0; uint32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE; VC_INLINE int IsIntel(const uint32 output[4]) @@ -292,6 +292,8 @@ void DetectX86Features() g_hasMMX = (cpuid1[3] & (1 << 23)) != 0; if ((cpuid1[3] & (1 << 26)) != 0) g_hasSSE2 = TrySSE2(); + g_hasAVX2 = g_hasSSE2 && (cpuid1[1] & (1 << 5)); + g_hasBMI2 = g_hasSSE2 && (cpuid1[1] & (1 << 8)); g_hasAVX = g_hasSSE2 && (cpuid1[2] & (1 << 28)); g_hasSSE42 = g_hasSSE2 && (cpuid1[2] & (1 << 20)); g_hasSSE41 = g_hasSSE2 && (cpuid1[2] & (1 << 19)); diff --git a/src/Crypto/cpu.h b/src/Crypto/cpu.h index 1057a373..ab372cf8 100644 --- a/src/Crypto/cpu.h +++ b/src/Crypto/cpu.h @@ -167,6 +167,8 @@ extern "C" { // these should not be used directly extern int g_x86DetectionDone; extern int g_hasAVX; +extern int g_hasAVX2; +extern int g_hasBMI2; extern int g_hasSSE42; extern int g_hasSSE41; extern int g_hasSSSE3; @@ -196,6 +198,8 @@ extern int g_hasMMX; #define HasSSE42() g_hasSSE42 #define HasSSE41() g_hasSSE41 #define HasSAVX() g_hasAVX +#define HasSAVX2() g_hasAVX2 +#define HasSBMI2() g_hasBMI2 #define HasSSSE3() g_hasSSSE3 #define HasAESNI() g_hasAESNI #define HasCLMUL() g_hasCLMUL |