diff options
Diffstat (limited to 'payloads/libpayload/vboot')
| -rw-r--r-- | payloads/libpayload/vboot/Kconfig | 12 | ||||
| -rw-r--r-- | payloads/libpayload/vboot/Makefile.mk | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/payloads/libpayload/vboot/Kconfig b/payloads/libpayload/vboot/Kconfig index 23d61f4e5e..6d71a7ca50 100644 --- a/payloads/libpayload/vboot/Kconfig +++ b/payloads/libpayload/vboot/Kconfig @@ -49,4 +49,16 @@ config VBOOT_SHA_ARMV8_CE help This option enables SHA256 implementation using ARMv8 Crypto Extension. +config VBOOT_ARM64_RSA_ACCELERATION + bool "Use arm64 SIMD instructions to accelerate RSA signature verification" + default y + depends on ARCH_ARM64 + help + Use arm64 SIMD instructions (NEON) to parallelize two multiplications + in the modulus exponentiation algorithm, which speeds up RSA signature + verification in vboot. This is supported on all arm64 CPUs so you'd + generally always want this enabled, unless your SoC is overriding + vboot's hwcrypto API with its own crypto accelerator IP instead (or + you're trying really hard to save on code size). + endif diff --git a/payloads/libpayload/vboot/Makefile.mk b/payloads/libpayload/vboot/Makefile.mk index bdc9ad2ad6..554fec864f 100644 --- a/payloads/libpayload/vboot/Makefile.mk +++ b/payloads/libpayload/vboot/Makefile.mk @@ -46,6 +46,7 @@ $(VBOOT_FW_LIB): $(obj)/libpayload-config.h X86_SHA_EXT=$(call kconfig-to-binary, $(CONFIG_LP_VBOOT_X86_SHA_EXT)) \ VB2_X86_RSA_ACCELERATION=$(call kconfig-to-binary, $(CONFIG_LP_VBOOT_X86_RSA_ACCELERATION)) \ ARMV8_CRYPTO_EXT=$(call kconfig-to-binary, $(CONFIG_LP_VBOOT_SHA_ARMV8_CE)) \ + ARM64_RSA_ACCELERATION=$(call kconfig-to-binary, $(CONFIG_LP_VBOOT_ARM64_RSA_ACCELERATION)) \ UNROLL_LOOPS=1 \ BUILD="$(VBOOT_BUILD_DIR)" \ V=$(V) \ |