From b6dfcb7d1848a5731a5e3bf732fcfdf07d4ed00a Mon Sep 17 00:00:00 2001 From: Jeremy Compostella Date: Mon, 27 Nov 2023 14:56:29 -0800 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/79289 Reviewed-by: Julius Werner Reviewed-by: Yu-Ping Wu Tested-by: build bot (Jenkins) --- src/security/vboot/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'src/security/vboot/Kconfig') diff --git a/src/security/vboot/Kconfig b/src/security/vboot/Kconfig index 9d90d1ee92..56e94d52ae 100644 --- a/src/security/vboot/Kconfig +++ b/src/security/vboot/Kconfig @@ -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 -- cgit v1.2.3