tree 57ad7bc451400be69796046505c8fb660ff67053
parent e47d9fd3b6cf23b0d98bdcd2a8176cefa4c5f089
author Matt DeVillier <matt.devillier@amd.corp-partner.google.com> 1674520287 -0600
committer Felix Held <felix-coreboot@felixheld.de> 1676300182 +0000

security/vboot: Add store/validate methods for AMD VBIOS FMAP cache

Add methods to store and retrieve the hash of the data stored in the
VBIOS cache FMAP region. Add a dedicated index in TPM NVRAM to store
the hash, and methods to calculate/read/write it.

Modeled after mrc_cache_hash_tpm.{c,h}

BUG=b:255812886
TEST=tested with rest of patch train

Change-Id: I030017d3bf956b8593bc09073ad6545b80a5b52b
Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72401
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>