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/** @file
TpmMeasurementLib SEC implementation.
Copyright (c) 2025, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiPei.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/TpmMeasurementLib.h>
#include <IndustryStandard/UefiTcgPlatform.h>
#include <Library/CcProbeLib.h>
/**
Do a hash operation on a data buffer, extend a specific RTMR with the hash result,
and add an entry to the Event Log.
@param[in] PcrIndex PCRIndex Index of the TPM PCR
@param[in] EventType Type of the Event.
@param[in] EventLog Physical address of the start of the data buffer.
@param[in] EventSize The length, in bytes, of the buffer referenced by EventLog.
@param[in] HashData Physical address of the start of the data buffer
to be hashed, extended, and logged.
@param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData
@retval EFI_SUCCESS The measurement is successful
@retval Others Other errors as indicated
**/
EFI_STATUS
EFIAPI
TdxHashLogExtendEvent (
IN UINT32 PcrIndex,
IN UINT32 EventType,
IN VOID *EventLog,
IN UINT32 LogLen,
IN VOID *HashData,
IN UINT64 HashDataLen
);
/**
Tpm measure and log data, and extend the measurement result into a specific PCR.
@param[in] PcrIndex PCR Index.
@param[in] EventType Event type.
@param[in] EventLog Measurement event log.
@param[in] LogLen Event log length in bytes.
@param[in] HashData The start of the data buffer to be hashed, extended.
@param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData
@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.
**/
EFI_STATUS
EFIAPI
TpmMeasureAndLogData (
IN UINT32 PcrIndex,
IN UINT32 EventType,
IN VOID *EventLog,
IN UINT32 LogLen,
IN VOID *HashData,
IN UINT64 HashDataLen
)
{
if (CcProbe () == CcGuestTypeIntelTdx) {
return TdxHashLogExtendEvent (PcrIndex, EventType, EventLog, LogLen, HashData, HashDataLen);
}
return EFI_UNSUPPORTED;
}
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