SecurityPkg/Library/Tpm12CommandLib/Tpm12SelfTest.c

   1 /** @file
   2   Implement TPM1.2 NV Self Test related commands.
   3
   4 Copyright (c) 2016 - 2017, Intel Corporation. All rights reserved. <BR>
   5 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiPei.h>
  11 #include <Library/Tpm12CommandLib.h>
  12 #include <Library/BaseLib.h>
  13 #include <Library/DebugLib.h>
  14 #include <Library/Tpm12DeviceLib.h>
  15
  16 /**
  17 Send TPM_ContinueSelfTest command to TPM.
  18
  19 @retval EFI_SUCCESS           Operation completed successfully.
  20 @retval EFI_TIMEOUT           The register can't run into the expected status in time.
  21 @retval EFI_BUFFER_TOO_SMALL  Response data buffer is too small.
  22 @retval EFI_DEVICE_ERROR      Unexpected device behavior.
  23
  24 **/
  25 EFI_STATUS
  26 EFIAPI
  27 Tpm12ContinueSelfTest (
  28   VOID
  29   )
  30 {
  31   EFI_STATUS           Status;
  32   TPM_RQU_COMMAND_HDR  Command;
  33   TPM_RSP_COMMAND_HDR  Response;
  34   UINT32               Length;
  35
  36   //
  37   // send Tpm command TPM_ORD_ContinueSelfTest
  38   //
  39   Command.tag       = SwapBytes16 (TPM_TAG_RQU_COMMAND);
  40   Command.paramSize = SwapBytes32 (sizeof (Command));
  41   Command.ordinal   = SwapBytes32 (TPM_ORD_ContinueSelfTest);
  42   Length = sizeof (Response);
  43   Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
  44   if (EFI_ERROR (Status)) {
  45     return Status;
  46   }
  47
  48   if (SwapBytes32 (Response.returnCode) != TPM_SUCCESS) {
  49     DEBUG ((DEBUG_ERROR, "Tpm12ContinueSelfTest: Response Code error! 0x%08x\r\n", SwapBytes32 (Response.returnCode)));
  50     return EFI_DEVICE_ERROR;
  51   }
  52
  53   return Status;
  54 }