Attention is currently required from: Julius Werner, Yu-Ping Wu.

Yidi Lin uploaded patch set #2 to this change.

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vboot: Add VBOOT_ARMV8_CE_SHA256_ACCELERATION config

Add Kconfig option for VBOOT_ARMV8_CE_SHA256_ACCELERATION, which will
use ARMv8 Crypto Extension for SHA256[1] instead of software
implementation.

This will speed up firmware verification in verstage.

[1] https://crrev.com/c/4170144

BUG=b:263514393
TEST='calculating body hash (SHA2)' get 13 msecs improvement on
Tentacruel.
Before:
 509:finished calculating body hash (SHA2)             161,548 (14,490)

After:
 509:finished calculating body hash (SHA2)             155,101 (1,187)

Change-Id: I02671338fd9e0deb5294dbb7c03528061edc18c4
Signed-off-by: Yidi Lin <yidilin@chromium.org>
---
M src/security/vboot/Kconfig
M src/security/vboot/Makefile.inc
2 files changed, 35 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/72711/2

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