i2pd/libi2pd/CPU.cpp

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/*
* Copyright (c) 2013-2020, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*/
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#include "CPU.h"
#if defined(__x86_64__) || defined(__i386__)
#include <cpuid.h>
#endif
#include "Log.h"
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#ifndef bit_AES
#define bit_AES (1 << 25)
#endif
#ifndef bit_AVX
#define bit_AVX (1 << 28)
#endif
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namespace i2p
{
namespace cpu
{
bool aesni = false;
bool avx = false;
void Detect()
{
#if defined(__AES__) || defined(__AVX__)
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#if defined(__x86_64__) || defined(__i386__)
int info[4];
__cpuid(0, info[0], info[1], info[2], info[3]);
if (info[0] >= 0x00000001) {
__cpuid(0x00000001, info[0], info[1], info[2], info[3]);
#ifdef __AES__
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aesni = info[2] & bit_AES; // AESNI
#endif // __AES__
#ifdef __AVX__
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avx = info[2] & bit_AVX; // AVX
#endif // __AVX__
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}
#endif // defined(__x86_64__) || defined(__i386__)
#ifdef __AES__
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if(aesni)
{
LogPrint(eLogInfo, "AESNI enabled");
}
#endif // __AES__
#ifdef __AVX__
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if(avx)
{
LogPrint(eLogInfo, "AVX enabled");
}
#endif // __AVX__
#endif // defined(__AES__) || defined(__AVX__)
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}
}
}