diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/cbfstool/cbfs.h | 1 | ||||
| -rw-r--r-- | util/cbfstool/cbfstool.c | 25 |
2 files changed, 17 insertions, 9 deletions
diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h index e90516211d..eca7168787 100644 --- a/util/cbfstool/cbfs.h +++ b/util/cbfstool/cbfs.h @@ -52,6 +52,7 @@ static struct typedesc_t filetypes[] unused = { {CBFS_TYPE_STRUCT, "struct"}, {CBFS_TYPE_DELETED, "deleted"}, {CBFS_TYPE_NULL, "null"}, + {CBFS_TYPE_AMDFW, "amdfw"}, {0, NULL} }; diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c index 5cb787d1c2..04b91e51ce 100644 --- a/util/cbfstool/cbfstool.c +++ b/util/cbfstool/cbfstool.c @@ -148,7 +148,7 @@ static struct mh_cache *get_mh_cache(void) if (!fmap) goto no_metadata_hash; - /* Find the bootblock. If there is a "BOOTBLOCK" FMAP section, it's + /* Find the metadata_hash container. If there is a "BOOTBLOCK" FMAP section, it's there. If not, it's a normal file in the primary CBFS section. */ size_t offset, size; struct buffer buffer; @@ -161,22 +161,27 @@ static struct mh_cache *get_mh_cache(void) size = buffer.size; } else { struct cbfs_image cbfs; - struct cbfs_file *bootblock; + struct cbfs_file *mh_container; if (!partitioned_file_read_region(&buffer, param.image_file, SECTION_NAME_PRIMARY_CBFS)) goto no_metadata_hash; mhc.region = SECTION_NAME_PRIMARY_CBFS; if (cbfs_image_from_buffer(&cbfs, &buffer, param.headeroffset)) goto no_metadata_hash; - bootblock = cbfs_get_entry(&cbfs, "bootblock"); - if (!bootblock || be32toh(bootblock->type) != CBFS_TYPE_BOOTBLOCK) - goto no_metadata_hash; - offset = (void *)bootblock + be32toh(bootblock->offset) - + mh_container = cbfs_get_entry(&cbfs, "bootblock"); + if (!mh_container || be32toh(mh_container->type) != CBFS_TYPE_BOOTBLOCK) { + /* Check for apu/amdfw file */ + mh_container = cbfs_get_entry(&cbfs, "apu/amdfw"); + if (!mh_container || be32toh(mh_container->type) != CBFS_TYPE_AMDFW) + goto no_metadata_hash; + } + + offset = (void *)mh_container + be32toh(mh_container->offset) - buffer_get(&cbfs.buffer); - size = be32toh(bootblock->len); + size = be32toh(mh_container->len); } - /* Find and validate the metadata hash anchor inside the bootblock and + /* Find and validate the metadata hash anchor inside the containing file and record its exact byte offset from the start of the FMAP region. */ struct metadata_hash_anchor *anchor = memmem(buffer_get(&buffer) + offset, size, METADATA_HASH_ANCHOR_MAGIC, sizeof(anchor->magic)); @@ -264,7 +269,8 @@ static int maybe_update_fmap_hash(void) { if (strcmp(param.region_name, SECTION_NAME_BOOTBLOCK) && strcmp(param.region_name, SECTION_NAME_FMAP) && - param.type != CBFS_TYPE_BOOTBLOCK) + param.type != CBFS_TYPE_BOOTBLOCK && + param.type != CBFS_TYPE_AMDFW) return 0; /* FMAP and bootblock didn't change. */ struct mh_cache *mhc = get_mh_cache(); @@ -285,6 +291,7 @@ static bool verification_exclude(enum cbfs_type type) case CBFS_TYPE_BOOTBLOCK: case CBFS_TYPE_CBFSHEADER: case CBFS_TYPE_INTEL_FIT: + case CBFS_TYPE_AMDFW: return true; default: return false; |