diff options
Diffstat (limited to 'src/drivers/intel/fsp2_0/util.c')
| -rw-r--r-- | src/drivers/intel/fsp2_0/util.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp2_0/util.c b/src/drivers/intel/fsp2_0/util.c index 866db586e2..24097f8120 100644 --- a/src/drivers/intel/fsp2_0/util.c +++ b/src/drivers/intel/fsp2_0/util.c @@ -224,6 +224,21 @@ void fsp_get_version(char *buf) revision.rev.minor, revision.rev.revision, revision.rev.bld_num); } +/* Check if the signature in the UPD header matches the expected one. If it doesn't match, the + FSP binaries in CBFS are for a different platform than the platform code trying to use it + in which case the function calls die(). */ +void fsp_verify_upd_header_signature(uint64_t upd_signature, uint64_t expected_signature) +{ + if (upd_signature != expected_signature) { + /* The UPD signatures are non-zero-terminated ASCII stored as a little endian + uint64_t, so this needs some casts. */ + die_with_post_code(POST_INVALID_VENDOR_BINARY, + "Invalid UPD signature! FSP provided \"%8s\", expected was \"%8s\".\n", + (char *)&upd_signature, + (char *)&expected_signature); + } +} + /* Add FSP version to coreboot table LB_TAG_PLATFORM_BLOB_VERSION */ void lb_string_platform_blob_version(struct lb_header *header) { |