tree 243eac3ff3a09f27f5d9f43c561562266f2d3db9
parent 5c808e03e2d80edd9ecd6a2a9268152b477940b6
author Werner Zeh <werner.zeh@siemens.com> 1652947297 +0200
committer Felix Held <felix-coreboot@felixheld.de> 1653399915 +0000

soc/intel/apollolake: Measure bootblock from IFWI

On Apollo Lake the bootblock is stitched into the IBBL IFWI region at
build time. At execution time TXE loads this IBBL into a shared SRAM
(which is read-only in this phase) and maps it at 4 GiB - 32 KiB. Then
the CPU starts to operate from this shared SRAM as it were flash space.

In order to provide a reliable CRTM init, the real executed bootblock
code needs to be measured into TPM if VBOOT is selected. This patch adds
the needed code to do this.

Change-Id: Ifb3f798de638a85029ebfe0d1b65770029297db3
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64493
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>