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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-07-01 00:58:55 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-07-01 01:56:32 +0200 |
| commit | f5e6136830b4c1e02327d1767030181364651e40 (patch) | |
| tree | 6f6e8d81a373a92d5ecd7d92ee31accfc2a59448 /src/Crypto | |
| parent | 33bb507fdeb0ca01725ad76f70dc00a7c154ed13 (diff) | |
| download | VeraCrypt-f5e6136830b4c1e02327d1767030181364651e40.tar.gz VeraCrypt-f5e6136830b4c1e02327d1767030181364651e40.zip | |
For code logic clarity, add check for xgetbv support in CPU before using it.
Diffstat (limited to 'src/Crypto')
| -rw-r--r-- | src/Crypto/cpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Crypto/cpu.c b/src/Crypto/cpu.c index a9c6e926..7ec5b988 100644 --- a/src/Crypto/cpu.c +++ b/src/Crypto/cpu.c @@ -305,7 +305,7 @@ void DetectX86Features() g_hasMMX = (cpuid1[3] & (1 << 23)) != 0; if ((cpuid1[3] & (1 << 26)) != 0) g_hasSSE2 = TrySSE2(); - if (g_hasSSE2 && (cpuid1[2] & (1 << 28)) && (cpuid1[2] & (1 << 27))) /* CPU has AVX and OS supports XSAVE/XRSTORE */ + if (g_hasSSE2 && (cpuid1[2] & (1 << 28)) && (cpuid1[2] & (1 << 27)) && (cpuid1[2] & (1 << 26))) /* CPU has AVX and OS supports XSAVE/XRSTORE */ { uint64 xcrFeatureMask = xgetbv(); g_hasAVX = (xcrFeatureMask & 0x6) == 0x6; |