[coreboot-gerrit] Change in coreboot[master]: security/vboot: Add Kconfig symbol to set hashing block size

[Martin Roth (Code Review)]

Hello build bot (Jenkins), Aaron Durbin,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/46901

to look at the new patch set (#2).

Change subject: security/vboot: Add Kconfig symbol to set hashing block size
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security/vboot: Add Kconfig symbol to set hashing block size

Generally, this size probably doesn't matter very much, but in the
case of picasso's psp_verstage, the hash is being calculated by
hardware using relatively expensive system calls.  By increasing the
block size, we can save roughly 140ms of boot and resume time.

TEST=Build & boot see that boot time has decreased.
BRANCH=Zork
BUG=b:169217270 - Zork: SHA calculation in vboot takes too long

Signed-off-by: Martin Roth 
Change-Id: I68eecbbdfadcbf14288dc6e849397724fb66e0b2
---
M src/security/vboot/Kconfig
M src/security/vboot/vboot_logic.c
2 files changed, 12 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/46901/2