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bc3f2f84f9
Add a new layout option, --fmap-verify, to be used when writing to flash, which will compare the FMAP on the flash chip to the one in the file being flashed, and abort if there are any differences. The comparison ensures that number of regions and start/end addresses are all identical. Add documentation for the new option as well. TEST: tested with the following commands: flashrom -p internal -r coreboot.rom --fmap-verify -i COREBOOT (fails w/error) flashrom -p internal -v coreboot.rom --fmap-verify -i COREBOOT (fails w/error) flashrom -p internal -r coreboot.rom --fmap -i COREBOOT (ok) flashrom -p internal -w coreboot.rom --fmap-verify -i COREBOOT (fails w/error - no FMAP) flashrom -p internal -r coreboot.rom (fails w/error, active ME) flashrom -p internal -r coreboot.rom --ifd -i bios (ok) flashrom -p internal -w coreboot.rom --fmap-verify -i COREBOOT -N (ok) Change-Id: I34f69d848869cf236b7e57cf8f60c2aaad79c385 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/89536 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>