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Merge pull request #8298 from daverodgman/sha-armce-thumb2

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Support SHA256 acceleration on Armv8 thumb2 and arm
This commit is contained in:
Dave Rodgman 2023-10-24 21:23:15 +00:00 • committed by GitHub
commit d69d3cda34
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 258 additions and 80 deletions
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16
include/mbedtls/build_info.h
View file

@ -74,6 +74,22 @@
#define MBEDTLS_ARCH_IS_X86
#endif
/* This is defined if the architecture is Armv8-A, or higher */
#if !defined(MBEDTLS_ARCH_IS_ARMV8_A)
#if defined(__ARM_ARCH) && defined(__ARM_ARCH_PROFILE)
#if (__ARM_ARCH >= 8) && (__ARM_ARCH_PROFILE == 'A')
/* GCC, clang, armclang and IAR */
#define MBEDTLS_ARCH_IS_ARMV8_A
#endif
#elif defined(__ARM_ARCH_8A)
/* Alternative defined by clang */
#define MBEDTLS_ARCH_IS_ARMV8_A
#elif defined(_M_ARM64) || defined(_M_ARM64EC)
/* MSVC ARM64 is at least Armv8.0-A */
#define MBEDTLS_ARCH_IS_ARMV8_A
#endif
#endif
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)
#define _CRT_SECURE_NO_DEPRECATE 1
#endif

19
include/mbedtls/check_config.h
View file

@ -849,25 +849,24 @@
#error "MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY defined on non-Aarch64 system"
#endif
#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) && \
defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY)
#error "Must only define one of MBEDTLS_SHA256_USE_A64_CRYPTO_*"
#if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) && \
defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY)
#error "Must only define one of MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_*"
#endif
#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) || \
defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY)
#if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT) || \
defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY)
#if !defined(MBEDTLS_SHA256_C)
#error "MBEDTLS_SHA256_USE_A64_CRYPTO_* defined without MBEDTLS_SHA256_C"
#error "MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_* defined without MBEDTLS_SHA256_C"
#endif
#if defined(MBEDTLS_SHA256_ALT) || defined(MBEDTLS_SHA256_PROCESS_ALT)
#error "MBEDTLS_SHA256_*ALT can't be used with MBEDTLS_SHA256_USE_A64_CRYPTO_*"
#error "MBEDTLS_SHA256_*ALT can't be used with MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_*"
#endif
#endif
#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY) && \
!defined(__aarch64__) && !defined(_M_ARM64)
#error "MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY defined on non-Aarch64 system"
#if defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY) && !defined(MBEDTLS_ARCH_IS_ARMV8_A)
#error "MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY defined on non-Armv8-A system"
#endif
/* TLS 1.3 requires separate HKDF parts from PSA,

10
include/mbedtls/config_adjust_legacy_crypto.h
View file

@ -306,6 +306,16 @@
#define MBEDTLS_CIPHER_PADDING_PKCS7
#endif
/* Backwards compatibility for some macros which were renamed to reflect that
* they are related to Armv8, not aarch64. */
#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) && \
!defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT)
#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT
#endif
#if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY) && !defined(MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY)
#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY
#endif
#if (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_GCM_C)) || \
(defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_ALG_GCM))
#define MBEDTLS_SSL_HAVE_GCM

48
include/mbedtls/mbedtls_config.h
View file

@ -3270,14 +3270,14 @@
#define MBEDTLS_SHA256_C
/**
* \def MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT
* \def MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT
*
* Enable acceleration of the SHA-256 and SHA-224 cryptographic hash algorithms
* with the ARMv8 cryptographic extensions if they are available at runtime.
* If not, the library will fall back to the C implementation.
*
* \note If MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT is defined when building
* for a non-Aarch64 build it will be silently ignored.
* \note If MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT is defined when building
* for a non-Armv8-A build it will be silently ignored.
*
* \note Minimum compiler versions for this feature are Clang 4.0,
* armclang 6.6 or GCC 6.0.
@ -3285,27 +3285,40 @@
* \note \c CFLAGS must be set to a minimum of \c -march=armv8-a+crypto for
* armclang <= 6.9
*
* \warning MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT cannot be defined at the
* same time as MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY.
* \note This was previously known as MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT.
* That name is deprecated, but may still be used as an alternative form for this
* option.
*
* \warning MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT cannot be defined at the
* same time as MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY.
*
* Requires: MBEDTLS_SHA256_C.
*
* Module: library/sha256.c
*
* Uncomment to have the library check for the A64 SHA-256 crypto extensions
* Uncomment to have the library check for the Armv8-A SHA-256 crypto extensions
* and use them if available.
*/
//#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT
/**
* \def MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT
*
* \deprecated This is now known as MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT.
* This name is now deprecated, but may still be used as an alternative form for
* this option.
*/
//#define MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT
/**
* \def MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY
* \def MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY
*
* Enable acceleration of the SHA-256 and SHA-224 cryptographic hash algorithms
* with the ARMv8 cryptographic extensions, which must be available at runtime
* or else an illegal instruction fault will occur.
*
* \note This allows builds with a smaller code size than with
* MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT
* MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT
*
* \note Minimum compiler versions for this feature are Clang 4.0,
* armclang 6.6 or GCC 6.0.
@ -3313,16 +3326,29 @@
* \note \c CFLAGS must be set to a minimum of \c -march=armv8-a+crypto for
* armclang <= 6.9
*
* \warning MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY cannot be defined at the same
* time as MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT.
* \note This was previously known as MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY.
* That name is deprecated, but may still be used as an alternative form for this
* option.
*
* \warning MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY cannot be defined at the same
* time as MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT.
*
* Requires: MBEDTLS_SHA256_C.
*
* Module: library/sha256.c
*
* Uncomment to have the library use the A64 SHA-256 crypto extensions
* Uncomment to have the library use the Armv8-A SHA-256 crypto extensions
* unconditionally.
*/
//#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY
/**
* \def MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY
*
* \deprecated This is now known as MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY.
* This name is now deprecated, but may still be used as an alternative form for
* this option.
*/
//#define MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY
/**