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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/CryptoPkg/Library/OpensslLib/openssl/boringssl/crypto/cpu-aarch64-linux.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/CryptoPkg/Library/OpensslLib/openssl/boringssl/crypto/cpu-aarch64-linux.c')
-rw-r--r-- | roms/edk2/CryptoPkg/Library/OpensslLib/openssl/boringssl/crypto/cpu-aarch64-linux.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/boringssl/crypto/cpu-aarch64-linux.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/boringssl/crypto/cpu-aarch64-linux.c new file mode 100644 index 000000000..1b0f39552 --- /dev/null +++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/boringssl/crypto/cpu-aarch64-linux.c @@ -0,0 +1,61 @@ +/* Copyright (c) 2016, Google Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ + +#include <openssl/cpu.h> + +#if defined(OPENSSL_AARCH64) && !defined(OPENSSL_STATIC_ARMCAP) + +#include <sys/auxv.h> + +#include <openssl/arm_arch.h> + +#include "internal.h" + + +extern uint32_t OPENSSL_armcap_P; + +void OPENSSL_cpuid_setup(void) { + unsigned long hwcap = getauxval(AT_HWCAP); + + /* See /usr/include/asm/hwcap.h on an aarch64 installation for the source of + * these values. */ + static const unsigned long kNEON = 1 << 1; + static const unsigned long kAES = 1 << 3; + static const unsigned long kPMULL = 1 << 4; + static const unsigned long kSHA1 = 1 << 5; + static const unsigned long kSHA256 = 1 << 6; + + if ((hwcap & kNEON) == 0) { + /* Matching OpenSSL, if NEON is missing, don't report other features + * either. */ + return; + } + + OPENSSL_armcap_P |= ARMV7_NEON; + + if (hwcap & kAES) { + OPENSSL_armcap_P |= ARMV8_AES; + } + if (hwcap & kPMULL) { + OPENSSL_armcap_P |= ARMV8_PMULL; + } + if (hwcap & kSHA1) { + OPENSSL_armcap_P |= ARMV8_SHA1; + } + if (hwcap & kSHA256) { + OPENSSL_armcap_P |= ARMV8_SHA256; + } +} + +#endif /* OPENSSL_AARCH64 && !OPENSSL_STATIC_ARMCAP */ |