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>
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>
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>
Karthikeyan Ramasubramanian