Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/46569 )
Change subject: mb/google/dedede: Update the flash ROM layout for RW regions ......................................................................
Patch Set 2: Code-Review+1
(1 comment)
https://review.coreboot.org/c/coreboot/+/46569/2/src/mainboard/google/dedede... File src/mainboard/google/dedede/chromeos-dedede-16MiB.fmd:
https://review.coreboot.org/c/coreboot/+/46569/2/src/mainboard/google/dedede... PS2, Line 26: VBLOCK_DEV@0x2000 0x2000
Are you referring to the kernel key? If so, it seems to be stored at the start of the kernel partiti […]
Yes, what Karthik said. I think this was added here before the developer hash feature was really scoped, or for a potential future expansion that never happened and nobody is still planning to do atm. The only developer hash feature we currently have compares a hash in the FWMP directly with the keyblock loaded from the kernel partition, see here: https://chromium.googlesource.com/chromiumos/platform/vboot_reference/+/refs...
There has never been a way for vboot to access this FMAP section.