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//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1987-2013, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/AMI TXT PEI/AmiTxtPei.c 5 6/11/15 10:32p Crystallee $
//
// $Revision: 5 $
//
// $Date: 6/11/15 10:32p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/AMI TXT PEI/AmiTxtPei.c $
//
// 5 6/11/15 10:32p Crystallee
// [TAG] EIP207854
// [Category] Bug Fix
// [Severity] Important
// [Symptom] Txt test fail with TCG2 module
// [RootCause] Tokne TCG_SUPPORT was removed.
// [Solution] Add TCG2Support token.
//
// 4 4/10/15 3:17a Crystallee
//
// 3 9/13/12 4:15a Davidhsieh
// [TAG] None
// [Category] Bug Fix
// [Severity] Important
// [Symptom] Disable TCG support causes BIOS buiding error
// [RootCause] TCG setup data is used in TxtDxe and the data is not
// exist when TCG disabled.
// [Solution] Do not use TCG setup data when TCG disabled.
//
// 2 8/22/12 3:29a Davidhsieh
// [TAG] None
// [Category] Improvement
// [Description] Install TPM_INITIALIZED_PPI when TPM device is present
// TPM enabled in setup
//
// 1 7/18/12 2:09a Davidhsieh
// [TAG] None
// [Category] Improvement
// [Description] AMI TXT PEI module part create
//
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: AmiTxtPei.c
//
// Description:
//
//<AMI_FHDR_END>
//**********************************************************************
//
#include <PEI.h>
#include <AmiPeiLib.h>
#include <AmiCspLib.h>
#include <ppi\ReadOnlyVariable.h>
#include <Setup.h>
#include <token.h>
#define PEI_TPM_INITIALIZED_PPI_GUID \
{ \
0xe9db0d58, 0xd48d, 0x47f6, 0x9c, 0x6e, 0x6f, 0x40, 0xe8, 0x6c, 0x7b, 0x41 \
}
static EFI_GUID gPeiTpmInitializedPpiGuid = PEI_TPM_INITIALIZED_PPI_GUID;
static EFI_GUID gEfiPeiReadOnlyVariablePpiGuid = EFI_PEI_READ_ONLY_VARIABLE_PPI_GUID;
static EFI_GUID gEfiSetupGuid = SETUP_GUID;
static EFI_PEI_PPI_DESCRIPTOR Tpm_Initialized[] =
{
{
EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
&gPeiTpmInitializedPpiGuid, NULL
}
};
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: AmiTxtPeiEntry
//
// Description: PEI Entry Point for Intel TXT Driver.
//
// Input: EFI_HANDLE - ImageHandle
// EFI_SYSTEM_TABLE* - SystemTable
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiTxtPeiEntry (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
{
UINT8 *TpmBaseAddr = (UINT8*)0xfed40000;
EFI_PEI_READ_ONLY_VARIABLE_PPI *ReadOnlyVariable;
EFI_STATUS Status;
UINTN VariableSize;
SETUP_DATA SetupData;
if (*TpmBaseAddr != 0xff){ //If TPM device is present, check TPM setup data
Status = (*PeiServices)->LocatePpi(
PeiServices,
&gEfiPeiReadOnlyVariablePpiGuid,
0,
NULL,
&ReadOnlyVariable
);
if (EFI_ERROR(Status)) return EFI_SUCCESS;
VariableSize = sizeof(SETUP_DATA);
Status = ReadOnlyVariable->GetVariable(
PeiServices,
L"Setup",
&gEfiSetupGuid,
NULL,
&VariableSize,
&SetupData
);
if ( EFI_ERROR(Status) ) return EFI_SUCCESS;
#if TCG_SUPPORT || TCG2Support
if (SetupData.TpmSupport)
(*PeiServices)->InstallPpi(PeiServices, Tpm_Initialized); //Install PPI if TPM device detected and enable in setup
#endif
}
return EFI_SUCCESS;
}
//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1987-2013, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
|
