MdeModulePkg/Library/TpmMeasurementLibNull/TpmMeasurementLibNull.c

   1 /** @file
   2   This library is used by other modules to measure data to TPM.
   3
   4 Copyright (c) 2015, Intel Corporation. All rights reserved. <BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 /**
  10   Tpm measure and log data, and extend the measurement result into a specific PCR.
  11
  12   @param[in]  PcrIndex         PCR Index.
  13   @param[in]  EventType        Event type.
  14   @param[in]  EventLog         Measurement event log.
  15   @param[in]  LogLen           Event log length in bytes.
  16   @param[in]  HashData         The start of the data buffer to be hashed, extended.
  17   @param[in]  HashDataLen      The length, in bytes, of the buffer referenced by HashData
  18
  19   @retval EFI_SUCCESS               Operation completed successfully.
  20   @retval EFI_UNSUPPORTED       TPM device not available.
  21   @retval EFI_OUT_OF_RESOURCES  Out of memory.
  22   @retval EFI_DEVICE_ERROR      The operation was unsuccessful.
  23 **/
  24 EFI_STATUS
  25 EFIAPI
  26 TpmMeasureAndLogData (
  27   IN UINT32             PcrIndex,
  28   IN UINT32             EventType,
  29   IN VOID               *EventLog,
  30   IN UINT32             LogLen,
  31   IN VOID               *HashData,
  32   IN UINT64             HashDataLen
  33   )
  34 {
  35   //
  36   // Do nothing, just return EFI_SUCCESS.
  37   //
  38   return EFI_SUCCESS;
  39 }