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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2025-01-17 00:58:54 +0100 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2025-01-17 00:58:54 +0100 |
| commit | 54bd81999007b467420acab780c704c91bc1b057 (patch) | |
| tree | fb2e3dbc899e6acd89f82406d6712508c015e1c8 /src/Crypto/cpu.c | |
| parent | c79f8102e094f512ac5c706fa30a2741d697b003 (diff) | |
| download | VeraCrypt-54bd81999007b467420acab780c704c91bc1b057.tar.gz VeraCrypt-54bd81999007b467420acab780c704c91bc1b057.zip | |
Windows/Linux/macOS: implement AES hardware support on ARM64 (ARMv8)
Diffstat (limited to 'src/Crypto/cpu.c')
| -rw-r--r-- | src/Crypto/cpu.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/Crypto/cpu.c b/src/Crypto/cpu.c index e611e9bb..85278a92 100644 --- a/src/Crypto/cpu.c +++ b/src/Crypto/cpu.c @@ -469,3 +469,41 @@ void DisableCPUExtendedFeatures () #endif +#if CRYPTOPP_BOOL_ARMV8 + +volatile int g_hasAESARM = 0; + +#ifndef HWCAP_AES +# define HWCAP_AES (1 << 3) +#endif + +inline int CPU_QueryAES() +{ +#if defined(CRYPTOPP_ARM_AES_AVAILABLE) +#if defined(__linux__) && defined(__aarch64__) + if ((getauxval(AT_HWCAP) & HWCAP_AES) != 0) + return 1; +#elif defined(__APPLE__) && defined(__aarch64__) + // Apple Sillcon (M1) and later + return 1; +#elif defined(_WIN32) && defined(_M_ARM64) +#ifdef TC_WINDOWS_DRIVER + if (ExIsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE) != 0) + return 1; +#else + if (IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE) != 0) + return 1; +#endif +#endif + return 0; +#else + return 0; +#endif +} + +void DetectArmFeatures() +{ + g_hasAESARM = CPU_QueryAES(); +} + +#endif
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