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2024-03-22 a0752693d998599af469473b8dc239ef973a012f

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/** @file 
 
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR> 
SPDX-License-Identifier: BSD-2-Clause-Patent 
 
**/ 
 
#include <Uefi.h> 
#include <PiDxe.h> 
#include <Library/TestPointCheckLib.h> 
#include <Library/TestPointLib.h> 
#include <Library/BaseMemoryLib.h> 
#include <Library/DebugLib.h> 
#include <Library/UefiLib.h> 
#include <Library/PrintLib.h> 
#include <Library/MemoryAllocationLib.h> 
#include <Library/UefiBootServicesTableLib.h> 
#include <Protocol/Tcg2Protocol.h> 
#include <IndustryStandard/Tpm2Acpi.h> 
 
VOID * 
TestPointGetAcpi ( 
  IN UINT32  Signature 
  ); 
 
EFI_STATUS 
EFIAPI 
TestPointCheckTcgTrustedBoot ( 
  VOID 
  ) 
{ 
  EFI_STATUS                       Status; 
  EFI_TCG2_PROTOCOL                *Tcg2; 
  EFI_TCG2_BOOT_SERVICE_CAPABILITY ProtocolCapability; 
  VOID                             *Acpi; 
 
  DEBUG ((DEBUG_INFO, "==== TestPointCheckTcgTrustedBoot - Enter\n")); 
 
  Status = gBS->LocateProtocol (&gEfiTcg2ProtocolGuid, NULL, (VOID **)&Tcg2); 
  if (EFI_ERROR(Status)) { 
    DEBUG ((DEBUG_ERROR, "Tcg2 Protocol - %r\n", Status)); 
    goto Done; 
  } 
 
  ZeroMem ((VOID *) &ProtocolCapability, sizeof (ProtocolCapability)); 
  ProtocolCapability.Size = (UINT8) sizeof (ProtocolCapability); 
  Status = Tcg2->GetCapability (Tcg2, &ProtocolCapability); 
  if (EFI_ERROR(Status)) { 
    DEBUG ((DEBUG_ERROR, "Tcg2->GetCapability - %r\n", Status)); 
    goto Done; 
  } 
 
  DEBUG ((DEBUG_INFO, "Capability.Size     - 0x%x\n", ProtocolCapability.Size)); 
  DEBUG ((DEBUG_INFO, "StructureVersion    - %x.%x\n", ProtocolCapability.StructureVersion.Major, ProtocolCapability.StructureVersion.Minor)); 
  DEBUG ((DEBUG_INFO, "ProtocolVersion     - %x.%x\n", ProtocolCapability.ProtocolVersion.Major, ProtocolCapability.ProtocolVersion.Minor)); 
  DEBUG ((DEBUG_INFO, "HashAlgorithmBitmap - 0x%08x\n", ProtocolCapability.HashAlgorithmBitmap)); 
  DEBUG ((DEBUG_INFO, "SupportedEventLogs  - 0x%08x\n", ProtocolCapability.SupportedEventLogs)); 
  DEBUG ((DEBUG_INFO, "TPMPresentFlag      - %x\n", ProtocolCapability.TPMPresentFlag)); 
  DEBUG ((DEBUG_INFO, "MaxCommandSize      - 0x%04x\n", ProtocolCapability.MaxCommandSize)); 
  DEBUG ((DEBUG_INFO, "MaxResponseSize     - 0x%04x\n", ProtocolCapability.MaxResponseSize)); 
  DEBUG ((DEBUG_INFO, "ManufacturerID      - 0x%08x\n", ProtocolCapability.ManufacturerID)); 
  if ((ProtocolCapability.StructureVersion.Major > 1) || 
      (ProtocolCapability.StructureVersion.Minor > 0)) { 
    DEBUG ((DEBUG_INFO, "NumberOfPCRBanks    - 0x%08x\n", ProtocolCapability.NumberOfPCRBanks)); 
    DEBUG ((DEBUG_INFO, "ActivePcrBanks      - 0x%08x\n", ProtocolCapability.ActivePcrBanks)); 
  } 
 
  if (!ProtocolCapability.TPMPresentFlag) { 
    DEBUG ((DEBUG_ERROR, "Tcg2 TPMPresentFlag FALSE\n")); 
    Status = EFI_NOT_FOUND; 
  } 
 
  Acpi = TestPointGetAcpi (EFI_ACPI_5_0_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE); 
  if (Acpi == NULL) { 
    DEBUG ((DEBUG_ERROR, "Tcg2 TPM2 table not found\n")); 
    Status = EFI_NOT_FOUND; 
  } 
 
Done: 
  if (EFI_ERROR(Status)) { 
    TestPointLibAppendErrorString ( 
      PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV, 
      NULL, 
      TEST_POINT_BYTE5_READY_TO_BOOT_TCG_TRUSTED_BOOT_ENABLED_ERROR_CODE \ 
        TEST_POINT_READY_TO_BOOT \ 
        TEST_POINT_BYTE5_READY_TO_BOOT_TCG_TRUSTED_BOOT_ENABLED_ERROR_STRING 
      ); 
  } 
  DEBUG ((DEBUG_INFO, "==== TestPointCheckTcgTrustedBoot - Exit\n")); 
  return Status; 
}