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- /** @file
- TCG PPI services.
- Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef _TCG_PPI_H_
- #define _TCG_PPI_H_
- #include <IndustryStandard/UefiTcgPlatform.h>
- typedef struct _EDKII_TCG_PPI EDKII_TCG_PPI;
- //
- // This bit is shall be set when HashData is the pre-hash digest.
- //
- #define EDKII_TCG_PRE_HASH 0x0000000000000001
- //
- // This bit is shall be set when HashData is the pre-hash digest and log only.
- //
- #define EDKII_TCG_PRE_HASH_LOG_ONLY 0x0000000000000002
- /**
- Tpm measure and log data, and extend the measurement result into a specific PCR.
- @param[in] This Indicates the calling context
- @param[in] Flags Bitmap providing additional information
- @param[in] HashData If BIT0 of Flags is 0, it is physical address of the
- start of the data buffer to be hashed, extended, and logged.
- If BIT0 of Flags is 1, it is physical address of the
- start of the pre-hash data buffter to be extended, and logged.
- The pre-hash data format is TPML_DIGEST_VALUES.
- @param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData.
- @param[in] NewEventHdr Pointer to a TCG_PCR_EVENT_HDR data structure.
- @param[in] NewEventData Pointer to the new event data.
- @retval EFI_SUCCESS Operation completed successfully.
- @retval EFI_UNSUPPORTED TPM device not available.
- @retval EFI_OUT_OF_RESOURCES Out of memory.
- @retval EFI_DEVICE_ERROR The operation was unsuccessful.
- **/
- typedef
- EFI_STATUS
- (EFIAPI *EDKII_TCG_HASH_LOG_EXTEND_EVENT)(
- IN EDKII_TCG_PPI *This,
- IN UINT64 Flags,
- IN UINT8 *HashData,
- IN UINTN HashDataLen,
- IN TCG_PCR_EVENT_HDR *NewEventHdr,
- IN UINT8 *NewEventData
- );
- ///
- /// The EFI_TCG Protocol abstracts TCG activity.
- ///
- struct _EDKII_TCG_PPI {
- EDKII_TCG_HASH_LOG_EXTEND_EVENT HashLogExtendEvent;
- };
- extern EFI_GUID gEdkiiTcgPpiGuid;
- #endif
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