From 9479037f38b74ca26819366d6573e0e548f79cf3 Mon Sep 17 00:00:00 2001 From: Subrata Banik Date: Thu, 17 Jun 2021 19:27:12 +0530 Subject: [PATCH] vboot: add VBOOT_X86_SHA256_ACCELERATION config Add Kconfig option for VBOOT_X86_SHA256_ACCELERATION, which will use x86-sha extension for SHA256 instead of software implementation. TEST=Able to call vb2ex_hwcrypto_digest_init() and perform SHA using HW crypto engine. Change-Id: Idc8be8711c69f4ebc489cd37cc3749c0b257c610 Signed-off-by: Subrata Banik Reviewed-on: https://review.coreboot.org/c/coreboot/+/55611 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner --- src/security/vboot/Kconfig | 8 ++++++++ src/security/vboot/Makefile.inc | 1 + 2 files changed, 9 insertions(+) diff --git a/src/security/vboot/Kconfig b/src/security/vboot/Kconfig index 036875884b..7cbeea3e39 100644 --- a/src/security/vboot/Kconfig +++ b/src/security/vboot/Kconfig @@ -274,6 +274,14 @@ config VBOOT_EC_EFS software sync needs to also support it. This setting tells vboot to perform EFS software sync. +config VBOOT_X86_SHA256_ACCELERATION + bool "Use sha extension for sha256 hash calculation" + default n + depends on ARCH_X86 + help + Use sha256msg1, sha256msg2, sha256rnds2 instruction to accelerate + SHA hash calculation in vboot. + menu "GBB configuration" config GBB_HWID diff --git a/src/security/vboot/Makefile.inc b/src/security/vboot/Makefile.inc index 47830f3c62..d604d1c862 100644 --- a/src/security/vboot/Makefile.inc +++ b/src/security/vboot/Makefile.inc @@ -28,6 +28,7 @@ $$(VBOOT_LIB_$(1)): $(obj)/config.h CC="$$(CC_$(1))" \ CFLAGS="$$(VBOOT_CFLAGS_$(1))" VBOOT2="y" \ EC_EFS="$(CONFIG_VBOOT_EC_EFS)" \ + X86_SHA_EXT="$(CONFIG_VBOOT_X86_SHA256_ACCELERATION)" \ $(MAKE) -C $(VBOOT_SOURCE) \ BUILD=$$(abspath $$(dir $$(VBOOT_LIB_$(1)))) \ V=$(V) \