libpayload: Implement new CBFS access API

This commit adds new CBFS API, which is based on the one available in
the main coreboot source tree. Libpayload implementation supports RO/RW
file lookups and file contents verification.

Change-Id: I00da0658dbac0cddf92ad55611def947932d23c7
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59497
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Jakub Czapiga
2021-11-15 08:36:07 +00:00
committed by Felix Held
parent 1fa3da4d9b
commit 63e54275f6
18 changed files with 1815 additions and 437 deletions

View File

@@ -0,0 +1,31 @@
## SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later
config CBFS
bool "CBFS support"
default y
help
CBFS is the archive format of coreboot
if CBFS
config DEBUG_CBFS
bool "Output verbose CBFS debug messages"
default n
help
This option enables additional CBFS related debug messages.
config ENABLE_CBFS_FALLBACK
bool "Fallback to RO (COREBOOT) region"
default n
help
When this option is enabled, the CBFS code will look for a file in the
RO (COREBOOT) region, if it isn't available in the active RW region.
This option makes sense only if CONFIG_VBOOT was enabled in the coreboot.
config CBFS_VERIFICATION
bool "Enable CBFS verification"
depends on VBOOT
help
This option enables hash verification of CBFS files in RO (COREBOOT) and RW regions.
endif