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/** @file
NULL instance of TdxMeasurementLib
Copyright (c) 2025, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Base.h>
#include <PiPei.h>
#include <Library/TdxMeasurementLib.h>
/**
According to UEFI Spec 2.10 Section 38.4.1:
The following table shows the TPM PCR index mapping and CC event log measurement
register index interpretation for Intel TDX, where MRTD means Trust Domain Measurement
Register and RTMR means Runtime Measurement Register
// TPM PCR Index | CC Measurement Register Index | TDX-measurement register
// ------------------------------------------------------------------------
// 0 | 0 | MRTD
// 1, 7 | 1 | RTMR[0]
// 2~6 | 2 | RTMR[1]
// 8~15 | 3 | RTMR[2]
@param[in] PCRIndex Index of the TPM PCR
@retval UINT32 Index of the CC Event Log Measurement Register Index
@retval CC_MR_INDEX_INVALID Invalid MR Index
**/
UINT32
EFIAPI
TdxMeasurementMapPcrToMrIndex (
IN UINT32 PCRIndex
)
{
return CC_MR_INDEX_INVALID;
}
/**
* Calculate the sha384 of input Data and extend it to RTMR register.
*
* @param RtmrIndex Index of the RTMR register
* @param DataToHash Data to be hashed
* @param DataToHashLen Length of the data
* @param Digest Hash value of the input data
* @param DigestLen Length of the hash value
*
* @retval EFI_SUCCESS Successfully hash and extend to RTMR
* @retval Others Other errors as indicated
*/
EFI_STATUS
EFIAPI
TdxMeasurementHashAndExtendToRtmr (
IN UINT32 RtmrIndex,
IN VOID *DataToHash,
IN UINTN DataToHashLen,
OUT UINT8 *Digest,
IN UINTN DigestLen
)
{
return EFI_UNSUPPORTED;
}
/**
* Build GuidHob for Tdx CC measurement event.
*
* @param RtmrIndex RTMR index
* @param EventType Event type
* @param EventData Event data
* @param EventSize Size of event data
* @param HashValue Hash value
* @param HashSize Size of hash
*
* @retval EFI_SUCCESS Successfully build the GuidHobs
* @retval Others Other error as indicated
*/
EFI_STATUS
EFIAPI
TdxMeasurementBuildGuidHob (
UINT32 RtmrIndex,
UINT32 EventType,
UINT8 *EventData,
UINT32 EventSize,
UINT8 *HashValue,
UINT32 HashSize
)
{
return EFI_UNSUPPORTED;
}
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