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Add Secure MOR implementation. 

Add a new module MemoryOverwriteRequestControlLock to register VarCheck handler to  enforce MorLock Policy.
Only SMM version is added because MOR is only supported in SMM variable case. 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com>
Reviewed-by: "Chao Zhang" <chao.b.zhang@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18092 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Yao, Jiewen 2015-07-28 07:20:58 +00:00 committed by jyao1
parent 5c61c5cfc8
commit 70c7664cd3
9 changed files with 605 additions and 0 deletions
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43
MdePkg/Include/IndustryStandard/MemoryOverwriteRequestControlLock.h Normal file
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/** @file
Support for Microsoft Secure MOR implementation, defined at
Microsoft Secure MOR implementation.
https://msdn.microsoft.com/en-us/library/windows/hardware/mt270973(v=vs.85).aspx
Copyright (c) 2015, 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.
**/
#ifndef __MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_H__
#define __MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_H__
#define MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_GUID \
{ \
0xBB983CCF, 0x151D, 0x40E1, {0xA0, 0x7B, 0x4A, 0x17, 0xBE, 0x16, 0x82, 0x92} \
}
#define MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_NAME L"MemoryOverwriteRequestControlLock"
//
// VendorGuid: {BB983CCF-151D-40E1-A07B-4A17BE168292}
// Name: MemoryOverwriteRequestControlLock
// Attributes: NV+BS+RT
// Size: 0x1 byte
//
// The BIOS initializes MemoryOverwriteRequestControlLock to a value of 0x00
// before BDS (BOOT#### processing). When the OS loader calls SetVariable by
// specifying 0x01, the access mode for both MemoryOverwriteRequestControlLock
// and MemoryOverwriteRequestControl is changed to read-only. If any other
// value is specified in the SetVariable call, it fails with the
// EFI_INVALID_PARAMETER error code.
//
extern EFI_GUID gEfiMemoryOverwriteRequestControlLockGuid;
#endif

3
MdePkg/MdePkg.dec
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@ -388,6 +388,9 @@
## Include/Guid/MemoryOverwriteControl.h
gEfiMemoryOverwriteControlDataGuid = { 0xe20939be, 0x32d4, 0x41be, {0xa1, 0x50, 0x89, 0x7f, 0x85, 0xd4, 0x98, 0x29 }}
## Include/IndustryStandard/MemoryOverwriteRequestControlLock.h
gEfiMemoryOverwriteRequestControlLockGuid = { 0xBB983CCF, 0x151D, 0x40E1, {0xA0, 0x7B, 0x4A, 0x17, 0xBE, 0x16, 0x82, 0x92}}
## Include/Guid/WinCertificate.h
gEfiCertTypeRsa2048Sha256Guid = { 0xa7717414, 0xc616, 0x4977, {0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf }}

2
SecurityPkg/SecurityPkg.dsc
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@ -234,6 +234,8 @@
SecurityPkg/Pkcs7Verify/Pkcs7VerifyDxe/Pkcs7VerifyDxe.inf
[Components.IA32, Components.X64]
SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLockSmm.inf
SecurityPkg/Tcg/TcgSmm/TcgSmm.inf
SecurityPkg/Tcg/TrEESmm/TrEESmm.inf
#

196
SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLock.c Normal file
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/** @file
TCG MOR (Memory Overwrite Request) Lock Control Driver.
This driver initilize MemoryOverwriteRequestControlLock variable.
This module will add Variable Hook and allow MemoryOverwriteRequestControlLock variable set only once.
Copyright (c) 2015, 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 <PiDxe.h>
#include <Guid/MemoryOverwriteControl.h>
#include <IndustryStandard/MemoryOverwriteRequestControlLock.h>
#include <Library/DebugLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include "TcgMorLock.h"
typedef struct {
CHAR16 *VariableName;
EFI_GUID *VendorGuid;
} VARIABLE_TYPE;
VARIABLE_TYPE mMorVariableType[] = {
{MEMORY_OVERWRITE_REQUEST_VARIABLE_NAME, &gEfiMemoryOverwriteControlDataGuid},
{MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_NAME, &gEfiMemoryOverwriteRequestControlLockGuid},
};
/**
Returns if this is MOR related variable.
@param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@retval TRUE The variable is MOR related.
@retval FALSE The variable is NOT MOR related.
**/
BOOLEAN
IsAnyMorVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid
)
{
UINTN Index;
for (Index = 0; Index < sizeof(mMorVariableType)/sizeof(mMorVariableType[0]); Index++) {
if ((StrCmp (VariableName, mMorVariableType[Index].VariableName) == 0) &&
(CompareGuid (VendorGuid, mMorVariableType[Index].VendorGuid))) {
return TRUE;
}
}
return FALSE;
}
/**
Returns if this is MOR lock variable.
@param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@retval TRUE The variable is MOR lock variable.
@retval FALSE The variable is NOT MOR lock variable.
**/
BOOLEAN
IsMorLockVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid
)
{
if ((StrCmp (VariableName, MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_NAME) == 0) &&
(CompareGuid (VendorGuid, &gEfiMemoryOverwriteRequestControlLockGuid))) {
return TRUE;
}
return FALSE;
}
/**
This service is a checker handler for the UEFI Runtime Service SetVariable()
@param VariableName the name of the vendor's variable, as a
Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@param Attributes Point to memory location to return the attributes of variable. If the point
is NULL, the parameter would be ignored.
@param DataSize The size in bytes of Data-Buffer.
@param Data Point to the content of the variable.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
DataSize exceeds the maximum allowed.
@retval EFI_INVALID_PARAMETER VariableName is an empty Unicode string.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
@retval EFI_WRITE_PROTECTED The variable in question is read-only.
@retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.
@retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
set but the AuthInfo does NOT pass the validation check carried
out by the firmware.
@retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
**/
EFI_STATUS
EFIAPI
SetVariableCheckHandlerMor (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
)
{
UINTN MorLockDataSize;
BOOLEAN MorLock;
EFI_STATUS Status;
//
// do not handle non-MOR variable
//
if (!IsAnyMorVariable (VariableName, VendorGuid)) {
return EFI_SUCCESS;
}
MorLockDataSize = sizeof(MorLock);
Status = InternalGetVariable (
MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_NAME,
&gEfiMemoryOverwriteRequestControlLockGuid,
NULL,
&MorLockDataSize,
&MorLock
);
if (!EFI_ERROR (Status) && MorLock) {
//
// If lock, deny access
//
return EFI_INVALID_PARAMETER;
}
//
// check format
//
if (IsMorLockVariable(VariableName, VendorGuid)) {
//
// Delete not OK
//
if ((DataSize == 0) || (Data == NULL) || (Attributes == 0)) {
return EFI_INVALID_PARAMETER;
}
//
// set to any other value not OK
//
if ((DataSize != sizeof(UINT8)) || ((*(UINT8 *)Data != 1) && (*(UINT8 *)Data != 0))) {
return EFI_INVALID_PARAMETER;
}
}
//
// Or grant access
//
return EFI_SUCCESS;
}
/**
Entry Point for MOR Lock Control driver.
@param[in] ImageHandle Image handle of this driver.
@param[in] SystemTable A Pointer to the EFI System Table.
@retval EFI_SUCEESS
@return Others Some error occurs.
**/
EFI_STATUS
EFIAPI
MorLockDriverInit (
VOID
)
{
EFI_STATUS Status;
UINT8 Data;
Data = 0;
Status = InternalSetVariable (
MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_NAME,
&gEfiMemoryOverwriteRequestControlLockGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
1,
&Data
);
return Status;
}

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SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLock.h Normal file
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/** @file
TCG MOR (Memory Overwrite Request) Lock Control Driver header file.
Copyright (c) 2015, 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.
**/
#ifndef _EFI_TCG_MOR_LOCK_H_
#define _EFI_TCG_MOR_LOCK_H_
/**
This service is a wrapper for the UEFI Runtime Service GetVariable().
@param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@param Attributes Point to memory location to return the attributes of variable. If the point
is NULL, the parameter would be ignored.
@param DataSize As input, point to the maximum size of return Data-Buffer.
As output, point to the actual size of the returned Data-Buffer.
@param Data Point to return Data-Buffer.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The variable was not found.
@retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the result. DataSize has
been updated with the size needed to complete the request.
@retval EFI_INVALID_PARAMETER VariableName is NULL.
@retval EFI_INVALID_PARAMETER VendorGuid is NULL.
@retval EFI_INVALID_PARAMETER DataSize is NULL.
@retval EFI_INVALID_PARAMETER The DataSize is not too small and Data is NULL.
@retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.
@retval EFI_SECURITY_VIOLATION The variable could not be retrieved due to an authentication failure.
**/
EFI_STATUS
EFIAPI
InternalGetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data
);
/**
This service is a wrapper for the UEFI Runtime Service SetVariable()
@param VariableName the name of the vendor's variable, as a
Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@param Attributes Point to memory location to return the attributes of variable. If the point
is NULL, the parameter would be ignored.
@param DataSize The size in bytes of Data-Buffer.
@param Data Point to the content of the variable.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
DataSize exceeds the maximum allowed.
@retval EFI_INVALID_PARAMETER VariableName is an empty Unicode string.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
@retval EFI_WRITE_PROTECTED The variable in question is read-only.
@retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.
@retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
set but the AuthInfo does NOT pass the validation check carried
out by the firmware.
@retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
**/
EFI_STATUS
EFIAPI
InternalSetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
);
/**
This service is a checker handler for the UEFI Runtime Service SetVariable()
@param VariableName the name of the vendor's variable, as a
Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@param Attributes Point to memory location to return the attributes of variable. If the point
is NULL, the parameter would be ignored.
@param DataSize The size in bytes of Data-Buffer.
@param Data Point to the content of the variable.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
DataSize exceeds the maximum allowed.
@retval EFI_INVALID_PARAMETER VariableName is an empty Unicode string.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
@retval EFI_WRITE_PROTECTED The variable in question is read-only.
@retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.
@retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
set but the AuthInfo does NOT pass the validation check carried
out by the firmware.
@retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
**/
EFI_STATUS
EFIAPI
SetVariableCheckHandlerMor (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
);
/**
Entry Point for MOR Lock Control driver.
@param[in] ImageHandle Image handle of this driver.
@param[in] SystemTable A Pointer to the EFI System Table.
@retval EFI_SUCEESS
@return Others Some error occurs.
**/
EFI_STATUS
EFIAPI
MorLockDriverInit (
VOID
);
#endif

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SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLock.uni Normal file
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SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLockExtra.uni Normal file
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SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLockSmm.c Normal file
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/** @file
TCG MOR (Memory Overwrite Request) Lock Control Driver SMM wrapper.
Copyright (c) 2015, 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 <PiSmm.h>
#include <Library/SmmServicesTableLib.h>
#include <Library/DebugLib.h>
#include <Protocol/SmmVarCheck.h>
#include <Protocol/SmmVariable.h>
#include "TcgMorLock.h"
EFI_SMM_VARIABLE_PROTOCOL *mSmmVariable;
/**
This service is a wrapper for the UEFI Runtime Service GetVariable().
@param VariableName the name of the vendor's variable, it's a Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@param Attributes Point to memory location to return the attributes of variable. If the point
is NULL, the parameter would be ignored.
@param DataSize As input, point to the maximum size of return Data-Buffer.
As output, point to the actual size of the returned Data-Buffer.
@param Data Point to return Data-Buffer.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The variable was not found.
@retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the result. DataSize has
been updated with the size needed to complete the request.
@retval EFI_INVALID_PARAMETER VariableName is NULL.
@retval EFI_INVALID_PARAMETER VendorGuid is NULL.
@retval EFI_INVALID_PARAMETER DataSize is NULL.
@retval EFI_INVALID_PARAMETER The DataSize is not too small and Data is NULL.
@retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.
@retval EFI_SECURITY_VIOLATION The variable could not be retrieved due to an authentication failure.
**/
EFI_STATUS
EFIAPI
InternalGetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data
)
{
return mSmmVariable->SmmGetVariable (
VariableName,
VendorGuid,
Attributes,
DataSize,
Data
);
}
/**
This service is a wrapper for the UEFI Runtime Service SetVariable()
@param VariableName the name of the vendor's variable, as a
Null-Terminated Unicode String
@param VendorGuid Unify identifier for vendor.
@param Attributes Point to memory location to return the attributes of variable. If the point
is NULL, the parameter would be ignored.
@param DataSize The size in bytes of Data-Buffer.
@param Data Point to the content of the variable.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
DataSize exceeds the maximum allowed.
@retval EFI_INVALID_PARAMETER VariableName is an empty Unicode string.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved due to a hardware failure.
@retval EFI_WRITE_PROTECTED The variable in question is read-only.
@retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.
@retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
set but the AuthInfo does NOT pass the validation check carried
out by the firmware.
@retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
**/
EFI_STATUS
EFIAPI
InternalSetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
)
{
return mSmmVariable->SmmSetVariable (
VariableName,
VendorGuid,
Attributes,
DataSize,
Data
);
}
/**
Entry Point for MOR Lock Control driver.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS EntryPoint runs successfully.
**/
EFI_STATUS
EFIAPI
MorLockDriverEntryPointSmm (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EDKII_SMM_VAR_CHECK_PROTOCOL *SmmVarCheck;
//
// This driver link to Smm Variable driver
//
DEBUG ((EFI_D_INFO, "MorLockDriverEntryPointSmm\n"));
Status = gSmst->SmmLocateProtocol (
&gEfiSmmVariableProtocolGuid,
NULL,
(VOID **) &mSmmVariable
);
ASSERT_EFI_ERROR (Status);
Status = gSmst->SmmLocateProtocol (
&gEdkiiSmmVarCheckProtocolGuid,
NULL,
(VOID **) &SmmVarCheck
);
ASSERT_EFI_ERROR (Status);
Status = MorLockDriverInit ();
if (EFI_ERROR (Status)) {
return Status;
}
Status = SmmVarCheck->SmmRegisterSetVariableCheckHandler (SetVariableCheckHandlerMor);
ASSERT_EFI_ERROR (Status);
return Status;
}

66
SecurityPkg/Tcg/MemoryOverwriteRequestControlLock/TcgMorLockSmm.inf Normal file
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## @file
# Initilizes MemoryOverwriteRequestControlLock variable
#
# This module will add Variable Hook and allow MemoryOverwriteRequestControlLock variable set only once.
#
# Copyright (c) 2015, 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.
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = TcgMorLockSmm
MODULE_UNI_FILE = TcgMorLock.uni
FILE_GUID = E2EA6F47-E678-47FA-8C1B-02A03E825C6E
MODULE_TYPE = DXE_SMM_DRIVER
VERSION_STRING = 1.0
PI_SPECIFICATION_VERSION = 0x0001000A
ENTRY_POINT = MorLockDriverEntryPointSmm
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources]
TcgMorLock.c
TcgMorLockSmm.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
SecurityPkg/SecurityPkg.dec
[LibraryClasses]
UefiDriverEntryPoint
SmmServicesTableLib
DebugLib
BaseLib
BaseMemoryLib
[Guids]
## SOMETIMES_CONSUMES ## Variable:L"MemoryOverwriteRequestControl"
gEfiMemoryOverwriteControlDataGuid
## SOMETIMES_CONSUMES ## Variable:L"MemoryOverwriteRequestControlLock"
## PRODUCES ## Variable:L"MemoryOverwriteRequestControlLock"
gEfiMemoryOverwriteRequestControlLockGuid
[Protocols]
gEdkiiSmmVarCheckProtocolGuid ## CONSUMES
gEfiSmmVariableProtocolGuid ## CONSUMES
[Depex]
gEfiSmmVariableProtocolGuid AND
gSmmVariableWriteGuid AND
( gEfiTcgProtocolGuid OR gEfiTrEEProtocolGuid )
[UserExtensions.TianoCore."ExtraFiles"]
TcgMorLockExtra.uni