SecurityPkg: Move to new location

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>

1 files changed, 0 insertions, 521 deletions

diff --git a/SecurityPkg/Tcg/TrEESmm/TrEESmm.c b/SecurityPkg/Tcg/TrEESmm/TrEESmm.c
deleted file mode 100644
index 1683dedc8a..0000000000
--- a/SecurityPkg/Tcg/TrEESmm/TrEESmm.c
+++ /dev/null
@@ -1,521 +0,0 @@
-/** @file

-  It updates TPM2 items in ACPI table and registers SMI2 callback

-  functions for TrEE physical presence, ClearMemory, and sample

-  for dTPM StartMethod.

-

-  Caution: This module requires additional review when modified.

-  This driver will have external input - variable and ACPINvs data in SMM mode.

-  This external input must be validated carefully to avoid security issue.

-

-  PhysicalPresenceCallback() and MemoryClearCallback() will receive untrusted input and do some check.

-

-Copyright (c) 2013 - 2017, Intel Corporation. All rights reserved.<BR>

-This program and the accompanying materials 

-are licensed and made available under the terms and conditions of the BSD License 

-which accompanies this distribution.  The full text of the license may be found at 

-http://opensource.org/licenses/bsd-license.php

-

-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 

-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

-

-**/

-

-#include "TrEESmm.h"

-

-EFI_TPM2_ACPI_TABLE  mTpm2AcpiTemplate = {

-  {

-    EFI_ACPI_5_0_TRUSTED_COMPUTING_PLATFORM_2_TABLE_SIGNATURE,

-    sizeof (mTpm2AcpiTemplate),

-    EFI_TPM2_ACPI_TABLE_REVISION_3,

-    //

-    // Compiler initializes the remaining bytes to 0

-    // These fields should be filled in in production

-    //

-  },

-  0, // Flags

-  0, // Control Area

-  EFI_TPM2_ACPI_TABLE_START_METHOD_TIS, // StartMethod

-};

-

-EFI_SMM_VARIABLE_PROTOCOL  *mSmmVariable;

-TCG_NVS                    *mTcgNvs;

-

-/**

-  Software SMI callback for TPM physical presence which is called from ACPI method.

-

-  Caution: This function may receive untrusted input.

-  Variable and ACPINvs are external input, so this function will validate

-  its data structure to be valid value.

-

-  @param[in]      DispatchHandle  The unique handle assigned to this handler by SmiHandlerRegister().

-  @param[in]      Context         Points to an optional handler context which was specified when the

-                                  handler was registered.

-  @param[in, out] CommBuffer      A pointer to a collection of data in memory that will

-                                  be conveyed from a non-SMM environment into an SMM environment.

-  @param[in, out] CommBufferSize  The size of the CommBuffer.

-

-  @retval EFI_SUCCESS             The interrupt was handled successfully.

-

-**/

-EFI_STATUS

-EFIAPI

-PhysicalPresenceCallback (

-  IN EFI_HANDLE                  DispatchHandle,

-  IN CONST VOID                  *Context,

-  IN OUT VOID                    *CommBuffer,

-  IN OUT UINTN                   *CommBufferSize

-  )

-{

-  EFI_STATUS                        Status;

-  UINTN                             DataSize;

-  EFI_TREE_PHYSICAL_PRESENCE        PpData;

-  EFI_TREE_PHYSICAL_PRESENCE_FLAGS  Flags;

-  BOOLEAN                           RequestConfirmed;

-

-  //

-  // Get the Physical Presence variable

-  //

-  DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE);

-  Status = mSmmVariable->SmmGetVariable (

-                           TREE_PHYSICAL_PRESENCE_VARIABLE,

-                           &gEfiTrEEPhysicalPresenceGuid,

-                           NULL,

-                           &DataSize,

-                           &PpData

-                           );

-

-  DEBUG ((EFI_D_INFO, "[TPM2] PP callback, Parameter = %x, Request = %x\n", mTcgNvs->PhysicalPresence.Parameter, mTcgNvs->PhysicalPresence.Request));

-

-  if (mTcgNvs->PhysicalPresence.Parameter == ACPI_FUNCTION_RETURN_REQUEST_RESPONSE_TO_OS) {

-    if (EFI_ERROR (Status)) {

-      mTcgNvs->PhysicalPresence.ReturnCode  = PP_RETURN_TPM_OPERATION_RESPONSE_FAILURE;

-      mTcgNvs->PhysicalPresence.LastRequest = 0;

-      mTcgNvs->PhysicalPresence.Response    = 0;

-      DEBUG ((EFI_D_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));

-      return EFI_SUCCESS;

-    }

-    mTcgNvs->PhysicalPresence.ReturnCode  = PP_RETURN_TPM_OPERATION_RESPONSE_SUCCESS;

-    mTcgNvs->PhysicalPresence.LastRequest = PpData.LastPPRequest;

-    mTcgNvs->PhysicalPresence.Response    = PpData.PPResponse;

-  } else if ((mTcgNvs->PhysicalPresence.Parameter == ACPI_FUNCTION_SUBMIT_REQUEST_TO_BIOS) 

-          || (mTcgNvs->PhysicalPresence.Parameter == ACPI_FUNCTION_SUBMIT_REQUEST_TO_BIOS_2)) {

-    if (EFI_ERROR (Status)) {

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE;

-      DEBUG ((EFI_D_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));

-      return EFI_SUCCESS;

-    }

-    if ((mTcgNvs->PhysicalPresence.Request > TREE_PHYSICAL_PRESENCE_NO_ACTION_MAX) &&

-        (mTcgNvs->PhysicalPresence.Request < TREE_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) ) {

-      //

-      // This command requires UI to prompt user for Auth data.

-      //

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED;

-      return EFI_SUCCESS;

-    }

-

-    if (PpData.PPRequest != mTcgNvs->PhysicalPresence.Request) {

-      PpData.PPRequest = (UINT8) mTcgNvs->PhysicalPresence.Request;

-      DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE);

-      Status = mSmmVariable->SmmSetVariable (

-                               TREE_PHYSICAL_PRESENCE_VARIABLE,

-                               &gEfiTrEEPhysicalPresenceGuid,

-                               EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,

-                               DataSize,

-                               &PpData

-                               );

-    }

-

-    if (EFI_ERROR (Status)) { 

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE;

-      DEBUG ((EFI_D_ERROR, "[TPM2] Set PP variable failure! Status = %r\n", Status));

-      return EFI_SUCCESS;

-    }

-    mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS;

-

-    if (mTcgNvs->PhysicalPresence.Request >= TREE_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {

-      DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE_FLAGS);

-      Status = mSmmVariable->SmmGetVariable (

-                               TREE_PHYSICAL_PRESENCE_FLAGS_VARIABLE,

-                               &gEfiTrEEPhysicalPresenceGuid,

-                               NULL,

-                               &DataSize,

-                               &Flags

-                               );

-      if (EFI_ERROR (Status)) {

-        Flags.PPFlags = 0;

-      }

-      mTcgNvs->PhysicalPresence.ReturnCode = TrEEPpVendorLibSubmitRequestToPreOSFunction (mTcgNvs->PhysicalPresence.Request, Flags.PPFlags);

-    }

-  } else if (mTcgNvs->PhysicalPresence.Parameter == ACPI_FUNCTION_GET_USER_CONFIRMATION_STATUS_FOR_REQUEST) {

-    if (EFI_ERROR (Status)) {

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_GET_USER_CONFIRMATION_BLOCKED_BY_BIOS_CONFIGURATION;

-      DEBUG ((EFI_D_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));

-      return EFI_SUCCESS;

-    }

-    //

-    // Get the Physical Presence flags

-    //

-    DataSize = sizeof (EFI_TREE_PHYSICAL_PRESENCE_FLAGS);

-    Status = mSmmVariable->SmmGetVariable (

-                             TREE_PHYSICAL_PRESENCE_FLAGS_VARIABLE,

-                             &gEfiTrEEPhysicalPresenceGuid,

-                             NULL,

-                             &DataSize,

-                             &Flags

-                             );

-    if (EFI_ERROR (Status)) {

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_GET_USER_CONFIRMATION_BLOCKED_BY_BIOS_CONFIGURATION;

-      DEBUG ((EFI_D_ERROR, "[TPM2] Get PP flags failure! Status = %r\n", Status));

-      return EFI_SUCCESS;

-    }

-

-    RequestConfirmed = FALSE;

-

-    switch (mTcgNvs->PhysicalPresence.Request) {

-

-      case TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR:

-      case TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR_2:

-      case TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR_3:

-      case TREE_PHYSICAL_PRESENCE_CLEAR_CONTROL_CLEAR_4:

-        if ((Flags.PPFlags & TREE_BIOS_TPM_MANAGEMENT_FLAG_NO_PPI_CLEAR) != 0) {

-          RequestConfirmed = TRUE;

-        }

-        break;

-

-      case TREE_PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_FALSE:

-        RequestConfirmed = TRUE;

-        break;

-

-      case TREE_PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_TRUE:

-        break;

-

-      default:

-        if (mTcgNvs->PhysicalPresence.Request <= TREE_PHYSICAL_PRESENCE_NO_ACTION_MAX) {

-          RequestConfirmed = TRUE;

-        } else {

-          if (mTcgNvs->PhysicalPresence.Request < TREE_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {

-            mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED; 

-            return EFI_SUCCESS;

-          }

-        }

-        break;

-    }

-

-    if (RequestConfirmed) {

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_GET_USER_CONFIRMATION_ALLOWED_AND_PPUSER_NOT_REQUIRED;

-    } else {

-      mTcgNvs->PhysicalPresence.ReturnCode = TREE_PP_GET_USER_CONFIRMATION_ALLOWED_AND_PPUSER_REQUIRED;

-    }    

-    if (mTcgNvs->PhysicalPresence.Request >= TREE_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {

-      mTcgNvs->PhysicalPresence.ReturnCode = TrEEPpVendorLibGetUserConfirmationStatusFunction (mTcgNvs->PhysicalPresence.Request, Flags.PPFlags);

-    }

-  } 

-

-  return EFI_SUCCESS;

-}

-

-

-/**

-  Software SMI callback for MemoryClear which is called from ACPI method.

-

-  Caution: This function may receive untrusted input.

-  Variable and ACPINvs are external input, so this function will validate

-  its data structure to be valid value.

-

-  @param[in]      DispatchHandle  The unique handle assigned to this handler by SmiHandlerRegister().

-  @param[in]      Context         Points to an optional handler context which was specified when the

-                                  handler was registered.

-  @param[in, out] CommBuffer      A pointer to a collection of data in memory that will

-                                  be conveyed from a non-SMM environment into an SMM environment.

-  @param[in, out] CommBufferSize  The size of the CommBuffer.

-

-  @retval EFI_SUCCESS             The interrupt was handled successfully.

-

-**/

-EFI_STATUS

-EFIAPI

-MemoryClearCallback (

-  IN EFI_HANDLE                  DispatchHandle,

-  IN CONST VOID                  *Context,

-  IN OUT VOID                    *CommBuffer,

-  IN OUT UINTN                   *CommBufferSize

-  )

-{

-  EFI_STATUS                     Status;

-  UINTN                          DataSize;

-  UINT8                          MorControl;

-

-  mTcgNvs->MemoryClear.ReturnCode = MOR_REQUEST_SUCCESS;

-  if (mTcgNvs->MemoryClear.Parameter == ACPI_FUNCTION_DSM_MEMORY_CLEAR_INTERFACE) {

-    MorControl = (UINT8) mTcgNvs->MemoryClear.Request;

-  } else if (mTcgNvs->MemoryClear.Parameter == ACPI_FUNCTION_PTS_CLEAR_MOR_BIT) {

-    DataSize = sizeof (UINT8);

-    Status = mSmmVariable->SmmGetVariable (

-                             MEMORY_OVERWRITE_REQUEST_VARIABLE_NAME,

-                             &gEfiMemoryOverwriteControlDataGuid,

-                             NULL,

-                             &DataSize,

-                             &MorControl

-                             );

-    if (EFI_ERROR (Status)) {

-      mTcgNvs->MemoryClear.ReturnCode = MOR_REQUEST_GENERAL_FAILURE;

-      DEBUG ((EFI_D_ERROR, "[TPM] Get MOR variable failure! Status = %r\n", Status));

-      return EFI_SUCCESS;

-    }

-

-    if (MOR_CLEAR_MEMORY_VALUE (MorControl) == 0x0) {

-      return EFI_SUCCESS;

-    }

-    MorControl &= ~MOR_CLEAR_MEMORY_BIT_MASK;

-  }

-

-  DataSize = sizeof (UINT8);

-  Status = mSmmVariable->SmmSetVariable (

-                           MEMORY_OVERWRITE_REQUEST_VARIABLE_NAME,

-                           &gEfiMemoryOverwriteControlDataGuid,

-                           EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,

-                           DataSize,

-                           &MorControl

-                           );

-  if (EFI_ERROR (Status)) { 

-    mTcgNvs->MemoryClear.ReturnCode = MOR_REQUEST_GENERAL_FAILURE;

-    DEBUG ((EFI_D_ERROR, "[TPM] Set MOR variable failure! Status = %r\n", Status));

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Find the operation region in TCG ACPI table by given Name and Size,

-  and initialize it if the region is found.

-

-  @param[in, out] Table          The TPM item in ACPI table.

-  @param[in]      Name           The name string to find in TPM table.

-  @param[in]      Size           The size of the region to find.

-

-  @return                        The allocated address for the found region.

-

-**/

-VOID *

-AssignOpRegion (

-  EFI_ACPI_DESCRIPTION_HEADER    *Table,

-  UINT32                         Name,

-  UINT16                         Size

-  )

-{

-  EFI_STATUS                     Status;

-  AML_OP_REGION_32_8             *OpRegion;

-  EFI_PHYSICAL_ADDRESS           MemoryAddress;

-

-  MemoryAddress = SIZE_4GB - 1;

-

-  //

-  // Patch some pointers for the ASL code before loading the SSDT.

-  //

-  for (OpRegion  = (AML_OP_REGION_32_8 *) (Table + 1);

-       OpRegion <= (AML_OP_REGION_32_8 *) ((UINT8 *) Table + Table->Length);

-       OpRegion  = (AML_OP_REGION_32_8 *) ((UINT8 *) OpRegion + 1)) {

-    if ((OpRegion->OpRegionOp  == AML_EXT_REGION_OP) && 

-        (OpRegion->NameString  == Name) &&

-        (OpRegion->DWordPrefix == AML_DWORD_PREFIX) &&

-        (OpRegion->BytePrefix  == AML_BYTE_PREFIX)) {

-

-      Status = gBS->AllocatePages(AllocateMaxAddress, EfiACPIMemoryNVS, EFI_SIZE_TO_PAGES (Size), &MemoryAddress);

-      ASSERT_EFI_ERROR (Status);

-      ZeroMem ((VOID *)(UINTN)MemoryAddress, Size);

-      OpRegion->RegionOffset = (UINT32) (UINTN) MemoryAddress;

-      OpRegion->RegionLen    = (UINT8) Size;

-      break;

-    }

-  }

-

-  return (VOID *) (UINTN) MemoryAddress;

-}

-

-/**

-  Initialize and publish TPM items in ACPI table.

-

-  @retval   EFI_SUCCESS     The TCG ACPI table is published successfully.

-  @retval   Others          The TCG ACPI table is not published.

-

-**/

-EFI_STATUS

-PublishAcpiTable (

-  VOID

-  )

-{

-  EFI_STATUS                     Status;

-  EFI_ACPI_TABLE_PROTOCOL        *AcpiTable;

-  UINTN                          TableKey;

-  EFI_ACPI_DESCRIPTION_HEADER    *Table;

-  UINTN                          TableSize;

-

-  Status = GetSectionFromFv (

-             &gEfiCallerIdGuid,

-             EFI_SECTION_RAW,

-             0,

-             (VOID **) &Table,

-             &TableSize

-             );

-  ASSERT_EFI_ERROR (Status);

-

-

-  //

-  // Measure to PCR[0] with event EV_POST_CODE ACPI DATA

-  //

-  TpmMeasureAndLogData(

-    0,

-    EV_POST_CODE,

-    EV_POSTCODE_INFO_ACPI_DATA,

-    ACPI_DATA_LEN,

-    Table,

-    TableSize

-    );

-

-

-  ASSERT (Table->OemTableId == SIGNATURE_64 ('T', 'p', 'm', '2', 'T', 'a', 'b', 'l'));

-  CopyMem (Table->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (Table->OemId) );

-  mTcgNvs = AssignOpRegion (Table, SIGNATURE_32 ('T', 'N', 'V', 'S'), (UINT16) sizeof (TCG_NVS));

-  ASSERT (mTcgNvs != NULL);

-

-  //

-  // Publish the TPM ACPI table

-  //

-  Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID **) &AcpiTable);

-  ASSERT_EFI_ERROR (Status);

-

-  TableKey = 0;

-  Status = AcpiTable->InstallAcpiTable (

-                        AcpiTable,

-                        Table,

-                        TableSize,

-                        &TableKey

-                        );

-  ASSERT_EFI_ERROR (Status);

-

-  return Status;

-}

-

-/**

-  Publish TPM2 ACPI table

-

-  @retval   EFI_SUCCESS     The TPM2 ACPI table is published successfully.

-  @retval   Others          The TPM2 ACPI table is not published.

-

-**/

-EFI_STATUS

-PublishTpm2 (

-  VOID

-  )

-{

-  EFI_STATUS                     Status;

-  EFI_ACPI_TABLE_PROTOCOL        *AcpiTable;

-  UINTN                          TableKey;

-  UINT64                         OemTableId;

-

-  //

-  // Measure to PCR[0] with event EV_POST_CODE ACPI DATA

-  //

-  TpmMeasureAndLogData(

-    0,

-    EV_POST_CODE,

-    EV_POSTCODE_INFO_ACPI_DATA,

-    ACPI_DATA_LEN,

-    &mTpm2AcpiTemplate,

-    sizeof(mTpm2AcpiTemplate)

-    );

-

-  CopyMem (mTpm2AcpiTemplate.Header.OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (mTpm2AcpiTemplate.Header.OemId));

-  OemTableId = PcdGet64 (PcdAcpiDefaultOemTableId);

-  CopyMem (&mTpm2AcpiTemplate.Header.OemTableId, &OemTableId, sizeof (UINT64));

-  mTpm2AcpiTemplate.Header.OemRevision      = PcdGet32 (PcdAcpiDefaultOemRevision);

-  mTpm2AcpiTemplate.Header.CreatorId        = PcdGet32 (PcdAcpiDefaultCreatorId);

-  mTpm2AcpiTemplate.Header.CreatorRevision  = PcdGet32 (PcdAcpiDefaultCreatorRevision);

-

-  //

-  // Construct ACPI table

-  //

-  Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID **) &AcpiTable);

-  ASSERT_EFI_ERROR (Status);

-

-  Status = AcpiTable->InstallAcpiTable (

-                        AcpiTable,

-                        &mTpm2AcpiTemplate,

-                        sizeof(mTpm2AcpiTemplate),

-                        &TableKey

-                        );

-  ASSERT_EFI_ERROR (Status);

-

-  return Status;

-}

-

-/**

-  The driver's entry point.

-

-  It install callbacks for TPM physical presence and MemoryClear, and locate 

-  SMM variable to be used in the callback function.

-

-  @param[in] ImageHandle  The firmware allocated handle for the EFI image.  

-  @param[in] SystemTable  A pointer to the EFI System Table.

-  

-  @retval EFI_SUCCESS     The entry point is executed successfully.

-  @retval Others          Some error occurs when executing this entry point.

-

-**/

-EFI_STATUS

-EFIAPI

-InitializeTcgSmm (

-  IN EFI_HANDLE                  ImageHandle,

-  IN EFI_SYSTEM_TABLE            *SystemTable

-  )

-{

-  EFI_STATUS                     Status;

-  EFI_SMM_SW_DISPATCH2_PROTOCOL  *SwDispatch;

-  EFI_SMM_SW_REGISTER_CONTEXT    SwContext;

-  EFI_HANDLE                     SwHandle;

-

-  if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm20DtpmGuid)){

-    DEBUG ((EFI_D_ERROR, "No TPM2 DTPM instance required!\n"));

-    return EFI_UNSUPPORTED;

-  }

-

-  Status = PublishAcpiTable ();

-  ASSERT_EFI_ERROR (Status);

-

-  //

-  // Get the Sw dispatch protocol and register SMI callback functions.

-  //

-  Status = gSmst->SmmLocateProtocol (&gEfiSmmSwDispatch2ProtocolGuid, NULL, (VOID**)&SwDispatch);

-  ASSERT_EFI_ERROR (Status);

-  SwContext.SwSmiInputValue = (UINTN) -1;

-  Status = SwDispatch->Register (SwDispatch, PhysicalPresenceCallback, &SwContext, &SwHandle);

-  ASSERT_EFI_ERROR (Status);

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-  mTcgNvs->PhysicalPresence.SoftwareSmi = (UINT8) SwContext.SwSmiInputValue;

-

-  SwContext.SwSmiInputValue = (UINTN) -1;

-  Status = SwDispatch->Register (SwDispatch, MemoryClearCallback, &SwContext, &SwHandle);

-  ASSERT_EFI_ERROR (Status);

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-  mTcgNvs->MemoryClear.SoftwareSmi = (UINT8) SwContext.SwSmiInputValue;

-  

-  //

-  // Locate SmmVariableProtocol.

-  //

-  Status = gSmst->SmmLocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID**)&mSmmVariable);

-  ASSERT_EFI_ERROR (Status);

-

-  //

-  // Set TPM2 ACPI table

-  //

-  Status = PublishTpm2 ();

-  ASSERT_EFI_ERROR (Status);

-

-

-  return EFI_SUCCESS;

-}

-