diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2021-11-19 13:47:42 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2021-11-21 17:08:10 +0100 |
| commit | 4da87c51705815fe1fbd41cc61640bb80da5bc54 (patch) | |
| tree | 3ab334395851c4f23ab32ef72842184d6ad91968 /drivers/firmware | |
| parent | f65b8132092699e4f672111836f3f51c00c354f2 (diff) | |
efi/libstub: add prototype of efi_tcg2_protocol::hash_log_extend_event()
Define the right prototype for efi_tcg2_protocol::hash_log_extend_event()
and add the required structs so we can start using it to measure the initrd
into the TPM if it was loaded by the EFI stub itself.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Link: https://lore.kernel.org/r/20211119114745.1560453-2-ilias.apalodimas@linaro.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/efi/libstub/efistub.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h index cde0a2ef507d..a2825c435158 100644 --- a/drivers/firmware/efi/libstub/efistub.h +++ b/drivers/firmware/efi/libstub/efistub.h @@ -667,6 +667,29 @@ union apple_properties_protocol { typedef u32 efi_tcg2_event_log_format; +#define INITRD_EVENT_TAG_ID 0x8F3B22ECU +#define EV_EVENT_TAG 0x00000006U +#define EFI_TCG2_EVENT_HEADER_VERSION 0x1 + +struct efi_tcg2_event { + u32 event_size; + struct { + u32 header_size; + u16 header_version; + u32 pcr_index; + u32 event_type; + } __packed event_header; + /* u8[] event follows here */ +} __packed; + +struct efi_tcg2_tagged_event { + u32 tagged_event_id; + u32 tagged_event_data_size; + /* u8 tagged event data follows here */ +} __packed; + +typedef struct efi_tcg2_event efi_tcg2_event_t; +typedef struct efi_tcg2_tagged_event efi_tcg2_tagged_event_t; typedef union efi_tcg2_protocol efi_tcg2_protocol_t; union efi_tcg2_protocol { @@ -677,7 +700,11 @@ union efi_tcg2_protocol { efi_physical_addr_t *, efi_physical_addr_t *, efi_bool_t *); - void *hash_log_extend_event; + efi_status_t (__efiapi *hash_log_extend_event)(efi_tcg2_protocol_t *, + u64, + efi_physical_addr_t, + u64, + const efi_tcg2_event_t *); void *submit_command; void *get_active_pcr_banks; void *set_active_pcr_banks; |