Add support to write EFS and AMDFW body to separate files. This is done
through passing an optional --body-location parameter to the amdfwtool.
If that option is not passed, then EFS will be written in the same file
as the AMDFW body. This will help to keep the minimum data to be
loaded/mapped from CBFS in PSP verstage.
BUG=None
TEST=Build and boot to OS in Skyrim.
Change-Id: I79325c81394cf8a0c663752d094adf6660896127
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70778
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
These are used on newer platforms.
Change-Id: I20dc77fb6f83dc813e3da5fe30f8f52068fc4662
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68119
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Add build rules to build amdfwread tool. Also mark this as a dependency
either while building tools or amdfw.rom.
BUG=None
TEST=Build and boot to OS in Skyrim with CBFS verification enabled.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I3fee4e4c77f62bb2840270b3eaaa58b894780d75
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66939
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Upcoming AMD SoCs use recovery A/B layout. Update amdfwread tool to
handle it.
Also add a generic read_header function to read different header types.
BUG=None
TEST=Run amdfwread tool against both Skyrim and Guybrush BIOS images to
dump the Softfuse entry.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I6576eaebc611ab338885aed2ee087bf85da3ca15
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66554
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Optional arguments that involve printing information from the firmware
image is mapped to bit fields with bit 31 set. But instead of just
setting bit 31, bits 27 - 31 are set. Fix AMDFW_OPT* bit mask.
BUG=None
TEST=Build and use amdfwread to read the Soft-fuse bits from Guybrush
BIOS image. Observed no changes before and after the changes.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I0d88669bace45f3332c5e56527516b2f38295a48
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66573
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
* AMD_ADDR_PHYSICAL refers to physical address in the memory map
* AMD_ADDR_REL_BIOS is relative to the start of the BIOS image
* AMD_ADDR_REL_TAB is relative to the start of concerned PSP or BIOS
tables
Update the relative_offset implementation accordingly. Though
AMD_ADDR_REL_SLOT is defined it is not used. Removing that to simplify
the relative_offset implementation so that it can be used for both PSP
and BIOS firmware tables. Hence update the relative_offset function
signature as well.
BUG=None
TEST=Build and use amdfwread to read the Soft-fuse bits from Guybrush
BIOS image. Observed no changes before and after the changes.
Change-Id: I74603dd08eda87393c14b746c4435eaf2bb34126
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66572
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This allows amdfwtool to recognize the names for the upcoming morgana
and glinda SoCs. It does not yet do anything for those SoCs, but this
allows the morgana SoC to build.
Signed-off-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Change-Id: I766ce4a5863c55cbc4bef074ac5219b498c48c7f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68193
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Generate SHA256/SHA384 hash of the signed firmware so that PSP verstage
can pass it to PSP. The PSP will use these hashes to verify the
integrity of those signed firmwares.
BUG=b:203597980
TEST=Build Skyrim BIOS image.
Change-Id: I50d278536ba1eac754eb8a39c4c2e428a2371c44
Signed-off-by: Kangheui Won <khwon@chromium.org>
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60290
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add support for separating signed firmwares into another CBFS. If
sig_opt flag in AMD/PSPFW file header is 1, it means that the firmware
is signed against AMD chain of trust and will be verified by PSP. If
those firmware binaries are put outside FW_MAIN_[AB], vboot can skip
redundant verification, improving overall verification time.
BUG=b:206909680
TEST=Build amdfwtool. Build Skyrim BIOS image and boot to OS.
Change-Id: I9f3610a7002b2a9c70946b083b0b3be6934200b0
Signed-off-by: Kangheui Won <khwon@chromium.org>
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59866
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Checkpatch script recommends to use __packed instead of
__attribute__((packed)). Currently the build rule for amdfwtool does not
include the required header file with __packed definition. Update the
compiler flag to include the required header file.
BUG=None
TEST=Build amdfwtool.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I448cbad533608dd5c2bd4f2d827fcc5db5dee5cb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67384
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The parsing of the PMU binary subprogram and instance numbers only
worked correctly for the cases where the ID in the name in the fw.cfg
file was between 0 and 9, but returned wrong results if it was between a
and f. Switch to using strtol with a base of 16 instead of subtracting
the char '0' from the char in the filename in
find_register_fw_filename_bios_dir to fix this.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ic5fd41daf9f26d11c1f86375387c1d7beac04124
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67927
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Add parameters to support adding the location and size of
the PSP NVRAM area to the PSP directory table.
Verified this change on PCO based Bilby platform.
Change-Id: I1664893db6f6dcdc588aeaf9448c2d81390af5fa
Signed-off-by: Ritul Guru <ritul.bits@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67137
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
index I/O argument to getopt_long is not the index to argv. Instead it
is an index into the optlong array corresponding to the parsed option.
Also getopt() uses a global variable optind to track the index of the
next argument to be processed. Use the optindex variable as an index to
extract the filename from argv.
BUG=None
TEST=Build and use amdfwread to read the Soft-fuse bits from Guybrush
BIOS image. Observed no changes before and after the changes.
Change-Id: I33c74a0c8e12c5af76954524cf7294b7541d286b
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66553
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
changes to reserve space for AMD_BIOS_SIG when
BIOS image is signed with RTMSignature.
Change-Id: Ia832fe83a3e29279c029fefc934c3ef4d335e2ea
Signed-off-by: Ritul Guru <ritul.bits@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66259
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Consolidate MAX_BIOS_ENTRIES and MAX_PSP_ENTRIES definitions into one
file
Signed-off-by: Altamshali Hirani <al.hirani@amd.corp-partner.google.com>
Change-Id: Ie3c64a1875010e7fb368967283df6baf1cc7ba8d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62911
Reviewed-by: ritul guru <ritul.bits@gmail.com>
Reviewed-by: Bao Zheng <fishbaozi@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
'Mendocino' was an embargoed name and could previously not be used.
Update amdfwtool for consistency with the correct naming convention.
BUG=b:239072117
TEST=Builds
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Change-Id: I673a9b99d207603b605756fc7d277c54c5d0f311
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66467
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
On boards which use both PSP recovery A/B layout as well as VBOOT A/B
layout, ISH_B directory entry is pointing directly to PSP Level2
directory. This is not correct and either ISH_B should be marked as not
present or it should point to the ISH_A directory itself which in turn
point to PSP L2 directory. Fix it by choosing the latter option.
BUG=None
TEST=Build and boot to OS in Skyrim with PSP verstage.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I0a7a56e98de3f85669ff8ec2fcd1687aa33576a9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66445
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This is required to enable PSP verstage on SoCs with recovery A/B
layout.
BUG=b:217414563
TEST=Ensure that the concerned type 0x3a PSP entry is present in PSP L2
directory. Build and boot to OS in Skyrim with both PSP and x86
verstage.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I5fae2b5dbcc95a99af3df9f59bb8516280ec1281
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66246
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
On SoCs which use A/B recovery layout, PSP verstage and signing keys are
expected to be present only in PSP L2 directory. Update amdfwtool to
include the PSP verstage and signing key only in PSP L2 directory.
BUG=b:239519603, b:238938623
TEST=Build and boot to OS in Skyrim with PSP verstage.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: Ieeb415be800b7ccf10d6983eb0b567e0a5eaa955
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66128
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Not all of the fields of the amd_cb_config structure were properly
initialized. Rather than initialize each field individually, initialize
the entire structure to 0.
TEST: Boot chausie
Signed-off-by: Fred Reitberger <reitbergerfred@gmail.com>
Change-Id: Ia343f01bce3956d66d01ce485b43963193c9df31
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65533
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Amdfwtool creates AMD firmware images however there is currently no way
to get information from an existing image. This commit adds amdfwread to
support that functionality. At the moment only reading PSP soft fuse
flags is supported. Example usage: `amdfwread --soft-fuse bios.bin`,
example output: `Soft-fuse:0x400000030000041`.
BUG=b:202397678
TEST=Ran amdfwread and verified that it correctly reads the soft fuse
bits, verified that built AMD FW still boots on DUT
Signed-off-by: Robert Zieba <robertzieba@google.com>
Change-Id: I15fa07c9cad8e4640e9c40e5539b0dab44424850
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62795
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
This binary file is required for use by Trusted Applications that
execute in PSP.
BUG=b:229947314
TEST=Build and boot to OS in Skyrim.
Change-Id: I2d05792cfd98fa9c38f5deef1ac3282625983eeb
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64040
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
The macro PSP_COMBO is removed and instead use the flag use_combo. As
long as this flag is false, the amdfwtool behaves the same way as the
macro does.
Change-Id: Ief0d78ae1e94b8183d6cf3195935ff9774fee426
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55455
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Use BHD instead of BDT as the name of cookie macro. Use L2 to make it
clear it is for level 2. The 'BHD2' is misleading, which is going to
be used for combo entry. The definition in psp_verstage is also changed.
Change-Id: Ia10ac5e873dab6db7d66e63773a7c63f504950b2
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55411
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
AMDFWtool maintains 2 copies of PSP Level2 entries - one in primary slot
A (Type 0x48) and another in backup slot B (Type 0x4A). On boards which
use VBOOT with 2 RW firmware slots, maintaining 2 copies of PSP Level2
entries in each FW slot is redundant and space-consuming. Introduce
option to maintain only one copy of PSP Level2 entries and point to it
from both slots A & B.
BUG=None
TEST=Build and boot to OS in Skyrim. Ensure that only one copy is added
to each FW slot. This achieved a space saving of 1.5 MB in each FW slot.
Before:
apu/amdfw 0x415fc0 raw 3043328 none
After:
apu/amdfw 0x415fc0 raw 1556480 none
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I06eef8e14b9c14db1d02b621c2f7207188d86326
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63509
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This is for future feature combo, which gets the soc id from fw.cfg in
a loop instead of the command line, and the romsig is not set until
fw.cfg is processed.
Change-Id: Id50311034b46aa1791dcc10b107de4af6c86b927
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63344
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
It is more reasonable than getting the value from memset.
For the reserved bits, keep them as they were for old SOCs.
Change-Id: I65caa11e835d2ff52bec4b8904057bbced434891
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63319
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Use the SPL table binary from the config file if no override is
specified via the spl-table command line argument. This fixes a
regression caused by commit 6c5ec8e31c
(amdfwtool: Add options to support mainboard specific SPL table).
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I93419a878b41b1dfcbf58d930740aaae553120f6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63314
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
The PSP in the Sabrina SoC uses the image slot header to find the second
level PSP directory table, so it needs the ISH to be generated.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9e6308854147c9f6f72d722215c833ee86ee4f94
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63186
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add PLATFORM_SABRINA to the enum of supported platforms and integrate it
into the existing code.
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ibe52b44395619f697686bd900a522562abbe7646
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63185
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
In newer AMD SoCs, the image slot header is used in the AMD A/B recovery
scheme, so set recovery_ab to true when need_ish is true. Also move the
block of code before the process_config call, since that call will
already use the recovery_ab field of the cb_config struct.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I65903765514f215bf5cc9b949d0b95aff781eb34
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63184
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
When the image slot header (ISH) is used, the addresses in the PSP and
BIOS directory tables need to be relative to the beginning of the table.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ia61f7c8313d5a1af95c68b9177a53a2f5443552a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63183
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Image Slot Header (ISH) is a new feature.
The rom layout for A/B recovery with ISH:
EFS -> PSP L1 0x48 -> ISH A -> PSP L2 A -> BIOS L2 A
0x4A -> ISH B -> PSP L2 B -> BIOS L2 B
The newer 55758 will updated about the boot priority and update retry
in ISH header.
Change-Id: Ib0690cde1dce949514c7aacebe13096b7814ceff
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57747
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Compared to Cezanne, the Sabrina SoC has a 3 additional PSP firmware
table entries, so add those as a preparation for Sabrina support.
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Iaa5aacd53b3c7637f6d5e94b1a8d92bba57ddb9d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63120
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
The Pubkey(0), PSP bootloader(1) and IKEK(0x21) should be put to
level 2 only for A/B recovery for Sabrina, which is going to be the
long term and A/B recovery layout only. So the amdfwtool should be
changed for Sabrina.
The old levels of these 3 FWs are for Cezanne, which doesn't use AB
recovery now. Just set the specific field levels in generic Cezanne
folder for demo. Leave the fw.cfg in Guybrush unchanged.
Change-Id: I11092b52927b2c526a5be719104ba39a790b6fa8
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62329
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
If AB recovery is enabled and get a "Lx" in fw.cfg, wrong character
is got or access violation happens.
Change-Id: Ibd8ffe34fd44d860ec2115cd36117da7b02169cd
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
If it is not cleared and the number of strings is fewer than last
iteration, the match[3] will keep the last value, which actually
should be empty.
Add assert to make sure the level is a legal value.
BUG=b:222038278
Change-Id: If14e0923fbb1648d83784eb5dc1411c93227db5a
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62482
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
The length should be checked before the PMU_STR_INS_INDEX(th) character
is accessed, otherwise it is going to an access violation.
Change-Id: I8b59eb34e1cb01fd6e2571fcebc28ef2084b6ec4
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62249
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I69c4b3cdd2473655064d1329d5319cffdba2425a
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62067
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Reviewed-by: Nikolai Vyssotski <nikolai.vyssotski@amd.corp-partner.google.com>
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>
Karthikeyan Ramasubramanian