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vboot: add VBOOT_X86_RSA_ACCELERATION config 

Add `VBOOT_X86_RSA_ACCELERATION' Kconfig option to enable SSE2
instruction set implementation of modulus exponentiation which is part
of the RSA signature verification process.

BUG=b:312709384
TEST=Able to use SSE2 accelerated implementation on rex0

Change-Id: Ib6e39eb9f592f36ad3dca76c8eaf2fe334704265
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79289
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jeremy Compostella 2023-11-27 14:56:29 -08:00 committed by Yu-Ping Wu
parent 0c8e54100b
commit b6dfcb7d18
2 changed files with 15 additions and 0 deletions
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9
src/security/vboot/Kconfig
View File

@ -301,6 +301,15 @@ config VBOOT_X86_SHA256_ACCELERATION
Use sha256msg1, sha256msg2, sha256rnds2 instruction to accelerate
SHA hash calculation in vboot.
config VBOOT_X86_RSA_ACCELERATION
bool "Use SSE2 instructions for RSA signature verification"
default n
depends on ARCH_X86
help
Use paddq, pmuludq, psrlq, punpckldq and punpcklqdq SSE2
instructions to accelerate the modulus exponentiation which
is part of the RSA signature verification process.
config VBOOT_ARMV8_CE_SHA256_ACCELERATION
bool "Use ARMv8 Crypto Extension for sha256 hash calculation"
default y if CHROMEOS

6
src/security/vboot/Makefile.inc
View File

@ -30,6 +30,8 @@ $$(VBOOT_LIB_$(1)): $(obj)/config.h
EC_EFS="$(CONFIG_VBOOT_EC_EFS)" \
X86_SHA_EXT="$(if $(CONFIG_ARCH_$(call toupper,$(1))_X86_32)$(CONFIG_ARCH_$(call toupper,$(1))_X86_64),$\
$(CONFIG_VBOOT_X86_SHA256_ACCELERATION))" \
VB2_X86_RSA_ACCELERATION="$(if $(CONFIG_ARCH_$(call toupper,$(1))_X86_32)$(CONFIG_ARCH_$(call toupper,$(1))_X86_64),$\
$(CONFIG_VBOOT_X86_RSA_ACCELERATION))" \
ARMV8_CRYPTO_EXT="$(if $(CONFIG_ARCH_$(call toupper,$(1))_ARMV8_64),$$(CONFIG_VBOOT_ARMV8_CE_SHA256_ACCELERATION))" \
$(MAKE) -C $(VBOOT_SOURCE) \
BUILD=$$(abspath $$(dir $$(VBOOT_LIB_$(1)))) \
@ -129,6 +131,10 @@ ramstage-$(CONFIG_MRC_SAVE_HASH_IN_TPM) += mrc_cache_hash_tpm.c
ramstage-$(CONFIG_SOC_AMD_GFX_CACHE_VBIOS_IN_FMAP) += vbios_cache_hash_tpm.c
ifeq ($(CONFIG_VBOOT_X86_RSA_ACCELERATION),y)
CPPFLAGS_common += -DVB2_X86_RSA_ACCELERATION
endif
ifeq ($(CONFIG_VBOOT_SEPARATE_VERSTAGE),y)
$(eval $(call vboot-for-stage,verstage))