diff options
Diffstat (limited to 'lib/efi_loader/efi_tcg2.c')
| -rw-r--r-- | lib/efi_loader/efi_tcg2.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/lib/efi_loader/efi_tcg2.c b/lib/efi_loader/efi_tcg2.c index 8db35d0b3c8..85562c50a1c 100644 --- a/lib/efi_loader/efi_tcg2.c +++ b/lib/efi_loader/efi_tcg2.c @@ -1075,12 +1075,17 @@ error: */ static efi_status_t tcg2_measure_smbios(struct udevice *dev, - const struct smbios_entry *entry) + const struct smbios3_entry *entry) { efi_status_t ret; struct smbios_header *smbios_copy; struct smbios_handoff_table_pointers2 *event = NULL; u32 event_size; + const char smbios3_anchor[] = "_SM3_"; + + /* We only support SMBIOS 3.0 Entry Point structure */ + if (memcmp(entry->anchor, smbios3_anchor, sizeof(smbios3_anchor) - 1)) + return EFI_UNSUPPORTED; /* * TCG PC Client PFP Spec says @@ -1093,7 +1098,7 @@ tcg2_measure_smbios(struct udevice *dev, */ event_size = sizeof(struct smbios_handoff_table_pointers2) + FIELD_SIZEOF(struct efi_configuration_table, guid) + - entry->struct_table_length; + entry->max_struct_size; event = calloc(1, event_size); if (!event) { ret = EFI_OUT_OF_RESOURCES; @@ -1104,11 +1109,11 @@ tcg2_measure_smbios(struct udevice *dev, memcpy(event->table_description, SMBIOS_HANDOFF_TABLE_DESC, sizeof(SMBIOS_HANDOFF_TABLE_DESC)); put_unaligned_le64(1, &event->number_of_tables); - guidcpy(&event->table_entry[0].guid, &smbios_guid); + guidcpy(&event->table_entry[0].guid, &smbios3_guid); smbios_copy = (struct smbios_header *)((uintptr_t)&event->table_entry[0].table); memcpy(&event->table_entry[0].table, (void *)((uintptr_t)entry->struct_table_address), - entry->struct_table_length); + entry->max_struct_size); smbios_prepare_measurement(entry, smbios_copy); @@ -1133,7 +1138,7 @@ static void *find_smbios_table(void) u32 i; for (i = 0; i < systab.nr_tables; i++) { - if (!guidcmp(&smbios_guid, &systab.tables[i].guid)) + if (!guidcmp(&smbios3_guid, &systab.tables[i].guid)) return systab.tables[i].table; } @@ -1360,7 +1365,7 @@ efi_status_t efi_tcg2_measure_efi_app_invocation(struct efi_loaded_image_obj *ha u32 pcr_index; struct udevice *dev; u32 event = 0; - struct smbios_entry *entry; + struct smbios3_entry *entry; if (!is_tcg2_protocol_installed()) return EFI_SUCCESS; @@ -1382,7 +1387,7 @@ efi_status_t efi_tcg2_measure_efi_app_invocation(struct efi_loaded_image_obj *ha if (ret != EFI_SUCCESS) goto out; - entry = (struct smbios_entry *)find_smbios_table(); + entry = (struct smbios3_entry *)find_smbios_table(); if (entry) { ret = tcg2_measure_smbios(dev, entry); if (ret != EFI_SUCCESS) |