The rom layout for A/B recovery:
EFS -> PSP L1 0x48 -> PSP L2 A -> BIOS L2 A
0x4A -> PSP L2 B -> BIOS L2 B
The coreboot doesn't implement the AMD's A/B recovery. This is only
for the ROM layout. To save some flash space, the entire B section can
be eliminated.
To enable A/B recovery in PSP layout, add "--recovery-ab" to
amdfwtool.
TEST=Majolica(Cezanne)
Change-Id: I27f5d3476f648fcecafb8d258ccb6cfad4f50036
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56773
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
SPL: Security Patch Level
The data in SPL is used for FW anti-rollback, preventing rollback of
platform level firmware to older version that are deemed vulnerable
from a security point of view.
BUG=b:216096562
Change-Id: I4665f2372ccd599ab835c8784da08cde5558a795
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61426
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
The value of level defined in table is the default one. We now give an
extra option in config file to change this value so some FWs can be
dropped in a more optimized way.
For the non A/B recovery mode, The value could be L1, L2, Lb or Lx,
which are level 1, leve 2, level both and using default value. If it
is empty or Lx, left the level in table unchanged.
Give a redundant field [12bxBX] in regular exprssion for A/B recovery
which will be done later.
Change-Id: I0847bc3793467a2299f14d1d2d2486f3f858d7f3
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Fixes these warnings:
warning: alignment 1 of 'struct _psp_directory_table' is less
than 16 [-Wpacked-not-aligned]
warning: alignment 1 of 'struct _psp_combo_directory' is less
than 16 [-Wpacked-not-aligned]
In function 'find_register_fw_filename_bios_dir':
warning: implicit conversion from 'enum _amd_fw_type' to
'amd_bios_type' {aka 'enum _amd_bios_type'} [-Wenum-conversion]
BUG=None
TEST=Build and verify binaries are identical.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I761d9893ac6737b42af96c4b2a57c5a4fc61ab05
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50643
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
