1aa60a95bd
Microcode header supports advertising support for only one CPU signature and processor flags. If there are multiple processor families supported by this microcode blob, they are mentioned in the extended signature table. Add support to parse the extended processor signature table to determine if the microcode blob supports the currently running CPU. BUG=b:182234962 TEST=Booted ADL brya system with a processor whose signature/pf are in the extended signature table of a microcode patch. Was able to match and load the patch appropriately. Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Change-Id: I1466caf4a4ba1f9a0214bdde19cce57dd65dacbd Reviewed-on: https://review.coreboot.org/c/coreboot/+/54734 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>