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