security/tpm: Include mrc.bin in CRTM if present

mrc.bin, on platforms where it is present, is code executed on CPU, so
it should be considered a part of CRTM.

cbfs_locate_file_in_region() is hooked to measurement here too, since
mrc.bin is loaded with it, and CBFS_TYPE_MRC (the type of mrc.bin) is
measured to TPM_CRTM_PCR rather than TPM_RUNTIME_DATA_PCR.

TODO: I have heard that SMM is too resource-limited to link with vboot
library, so currently tspi_measure_cbfs_hook() is masked in SMM.
Please correct me if I am wrong.

Change-Id: Ib4c3cf47b919864056baf725001ca8a4aaafa110
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38858
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

0 files changed, 0 insertions, 0 deletions