1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192 |
- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Defines data structures and APIs that allow an OS to interact with UEFI
- * firmware to query information about the device
- *
- * Copyright (c) 2020, Linaro Limited
- */
- #if !defined _EFI_TCG2_PROTOCOL_H_
- #define _EFI_TCG2_PROTOCOL_H_
- #include <tpm-v2.h>
- #define EFI_TCG2_PROTOCOL_GUID \
- EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, \
- 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f)
- /* TPMV2 only */
- #define TCG2_EVENT_LOG_FORMAT_TCG_2 0x00000002
- /* Algorithm Registry */
- #define EFI_TCG2_BOOT_HASH_ALG_SHA1 0x00000001
- #define EFI_TCG2_BOOT_HASH_ALG_SHA256 0x00000002
- #define EFI_TCG2_BOOT_HASH_ALG_SHA384 0x00000004
- #define EFI_TCG2_BOOT_HASH_ALG_SHA512 0x00000008
- #define EFI_TCG2_BOOT_HASH_ALG_SM3_256 0x00000010
- typedef u32 efi_tcg_event_log_bitmap;
- typedef u32 efi_tcg_event_log_format;
- typedef u32 efi_tcg_event_algorithm_bitmap;
- struct efi_tcg2_version {
- u8 major;
- u8 minor;
- };
- struct efi_tcg2_event_header {
- u32 header_size;
- u16 header_version;
- u32 pcr_index;
- u32 event_type;
- } __packed;
- struct efi_tcg2_event {
- u32 size;
- struct efi_tcg2_event_header header;
- u8 event[];
- } __packed;
- struct efi_tcg2_boot_service_capability {
- u8 size;
- struct efi_tcg2_version structure_version;
- struct efi_tcg2_version protocol_version;
- efi_tcg_event_algorithm_bitmap hash_algorithm_bitmap;
- efi_tcg_event_log_bitmap supported_event_logs;
- u8 tpm_present_flag;
- u16 max_command_size;
- u16 max_response_size;
- u32 manufacturer_id;
- u32 number_of_pcr_banks;
- efi_tcg_event_algorithm_bitmap active_pcr_banks;
- };
- #define boot_service_capability_min \
- sizeof(struct efi_tcg2_boot_service_capability) - \
- offsetof(struct efi_tcg2_boot_service_capability, number_of_pcr_banks)
- struct efi_tcg2_protocol {
- efi_status_t (EFIAPI * get_capability)(struct efi_tcg2_protocol *this,
- struct efi_tcg2_boot_service_capability *capability);
- efi_status_t (EFIAPI * get_eventlog)(struct efi_tcg2_protocol *this,
- efi_tcg_event_log_format log_format,
- u64 *event_log_location, u64 *event_log_last_entry,
- bool *event_log_truncated);
- efi_status_t (EFIAPI * hash_log_extend_event)(struct efi_tcg2_protocol *this,
- u64 flags, u64 data_to_hash,
- u64 data_to_hash_len,
- struct efi_tcg2_event *efi_tcg_event);
- efi_status_t (EFIAPI * submit_command)(struct efi_tcg2_protocol *this,
- u32 input_parameter_block_size,
- u8 *input_parameter_block,
- u32 output_parameter_block_size,
- u8 *output_parameter_block);
- efi_status_t (EFIAPI * get_active_pcr_banks)(struct efi_tcg2_protocol *this,
- u32 *active_pcr_banks);
- efi_status_t (EFIAPI * set_active_pcr_banks)(struct efi_tcg2_protocol *this,
- u32 active_pcr_banks);
- efi_status_t (EFIAPI * get_result_of_set_active_pcr_banks)(struct efi_tcg2_protocol *this,
- u32 *operation_present,
- u32 *response);
- };
- #endif
|