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Windows: remove duplicated function to detect AES-NI support in CPU

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This commit is contained in:
Mounir IDRASSI
2020-06-18 16:41:24 +02:00
parent eaf400b088
commit 0e3f4c40e3
4 changed files with 4 additions and 24 deletions
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2
src/Crypto/Aes_hw_cpu.h
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@@ -20,7 +20,9 @@ extern "C"
{
#endif
#if defined (TC_WINDOWS_BOOT)
byte is_aes_hw_cpu_supported ();
#endif
void aes_hw_cpu_enable_sse ();
void aes_hw_cpu_decrypt (const byte *ks, byte *data);
void aes_hw_cpu_decrypt_32_blocks (const byte *ks, byte *data);

22
src/Crypto/cpu.c
View File

@@ -422,28 +422,6 @@ void DetectX86Features()
*((volatile int*)&g_x86DetectionDone) = 1;
}
int is_aes_hw_cpu_supported ()
{
int bHasAESNI = 0;
uint32 cpuid[4];
if (CpuId(1, cpuid))
{
if (cpuid[2] & (1<<25))
bHasAESNI = 1;
#if !defined (_UEFI) && ((defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE)
// Hypervisor = bit 31 of ECX of CPUID leaf 0x1
// reference: http://artemonsecurity.com/vmde.pdf
if (!bHasAESNI && (cpuid[2] & (1<<31)))
{
bHasAESNI = Detect_MS_HyperV_AES ();
}
#endif
}
return bHasAESNI;
}
void DisableCPUExtendedFeatures ()
{
g_hasSSE2 = 0;