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Make codebase more CPU-agnostic + MacOS disclaimer (#559)

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Exzap 2022-12-07 00:48:24 +00:00 • committed by GitHub
parent 445b0afa95
commit 2c81d240a5
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GPG key ID: 4AEE18F83AFDEB23
26 changed files with 416 additions and 272 deletions
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20
src/util/crypto/aes128.cpp
View file

@ -10,6 +10,7 @@
/* Includes: */
/*****************************************************************************/
#include "aes128.h"
#include "Common/cpu_features.h"
/*****************************************************************************/
/* Defines: */
@ -23,8 +24,6 @@
// The number of rounds in AES Cipher.
#define Nr 10
bool useAESNI = false;
typedef uint8 state_t[4][4];
typedef struct
@ -601,6 +600,7 @@ void AES128_CBC_decrypt_updateIV(uint8* output, uint8* input, uint32 length, con
memcpy(iv, newIv, KEYLEN);
}
#if defined(ARCH_X86_64)
inline __m128i AESNI128_ASSIST(
__m128i temp1,
__m128i temp2)
@ -792,6 +792,7 @@ void __aesni__AES128_ECB_encrypt(uint8* input, const uint8* key, uint8* output)
feedback = _mm_aesenclast_si128(feedback, ((__m128i*)expandedKey)[10]);
_mm_storeu_si128(&((__m128i*)output)[0], feedback);
}
#endif
void(*AES128_ECB_encrypt)(uint8* input, const uint8* key, uint8* output);
void (*AES128_CBC_decrypt)(uint8* output, uint8* input, uint32 length, const uint8* key, const uint8* iv) = nullptr;
@ -836,10 +837,8 @@ void AES128_init()
lookupTable_multiply[i] = (vE << 0) | (v9 << 8) | (vD << 16) | (vB << 24);
}
// check if AES-NI is available
int v[4];
cpuid(v, 1);
useAESNI = (v[2] & 0x2000000) != 0;
if (useAESNI)
#if defined(ARCH_X86_64)
if (g_CPUFeatures.x86.aesni)
{
// AES-NI implementation
AES128_CBC_decrypt = __aesni__AES128_CBC_decrypt;
@ -851,9 +850,8 @@ void AES128_init()
AES128_CBC_decrypt = __soft__AES128_CBC_decrypt;
AES128_ECB_encrypt = __soft__AES128_ECB_encrypt;
}
#else
AES128_CBC_decrypt = __soft__AES128_CBC_decrypt;
AES128_ECB_encrypt = __soft__AES128_ECB_encrypt;
#endif
}
bool AES128_useAESNI()
{
return useAESNI;
}

1
src/util/crypto/aes128.h
View file

@ -2,7 +2,6 @@
#define _AES_H_
void AES128_init();
bool AES128_useAESNI();
extern void(*AES128_ECB_encrypt)(uint8* input, const uint8* key, uint8* output);

5
src/util/helpers/fspinlock.h
View file

@ -19,7 +19,8 @@ public:
{
if (!m_lockBool.exchange(true, std::memory_order_acquire))
break;
while (m_lockBool.load(std::memory_order_relaxed)) _mm_pause();
while (m_lockBool.load(std::memory_order_relaxed))
_mm_pause();
}
}
@ -36,4 +37,4 @@ public:
private:
mutable std::atomic<bool> m_lockBool = false;
};
};