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+/*++
+
+ Copyright (c) 2005 Intel Corporation. All rights reserved
+ This software and associated documentation (if any) is furnished
+ under a license and may only be used or copied in accordance
+ with the terms of the license. Except as permitted by such
+ license, no part of this software or documentation may be
+ reproduced, stored in a retrieval system, or transmitted in any
+ form or by any means without the express written consent of
+ Intel Corporation.
+
+
+ Module Name:
+
+ TpmPei.h
+
+ Abstract:
+
+ PEI driver for TPM devices
+
+ --*/
+//*************************************************************************
+// $Header: /Alaska/SOURCE/Modules/TCG2/Common/TcgPei/TisPei.c 2 4/21/14 3:16p Fredericko $
+//
+// $Revision: 2 $
+//
+// $Date: 4/21/14 3:16p $
+//*************************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/TCG2/Common/TcgPei/TisPei.c $
+//
+// 2 4/21/14 3:16p Fredericko
+//
+// 1 4/21/14 2:16p Fredericko
+//
+// 1 10/08/13 12:02p Fredericko
+// Initial Check-In for Tpm-Next module
+//
+// 1 7/10/13 5:51p Fredericko
+// [TAG] EIP120969
+// [Category] New Feature
+// [Description] TCG (TPM20)
+//
+// 17 4/01/11 11:13a Fredericko
+//
+// 16 4/01/11 10:52a Fredericko
+// Changes for TPM support in Legacy IO mode. Some TPMs do not allow init
+// function to be called more than once during legacy mode.
+//
+// 15 3/31/11 4:49p Fredericko
+// Changes for TCG_LEGACY support
+//
+// 14 3/29/11 12:57p Fredericko
+//
+// 13 3/28/11 2:06p Fredericko
+// [TAG] EIP 54642
+// [Category] Improvement
+// [Description] 1. Checkin Files related to TCG function override
+// 2. Include TCM and TPM auto detection
+// [Files] Affects all TCG files
+//
+// 12 5/19/10 5:44p Fredericko
+// Included File Header
+// Included File Revision History
+// Code Beautification
+// EIP 37653
+//
+//*************************************************************************
+//*************************************************************************
+//<AMI_FHDR_START>
+//
+// Name: TpmPei.c
+//
+// Description:
+// Abstracted functions for Tpm ppis' are defined here
+//
+//<AMI_FHDR_END>
+//*************************************************************************
+#include <Efi.h>
+#include <Pei.h>
+#include <TcgTpm12.h>
+#include <TpmLib.h>
+#include <AmiPeiLib.h>
+#include <token.h>
+#include "TcgCommon.h"
+#include "PPI\TcgService\TcgService.h"
+#include "PPI\TpmDevice\TpmDevice.h"
+#include "Tpm20CRBLib.h"
+
+
+#define _CR( Record, TYPE,\
+ Field )((TYPE*) ((CHAR8*) (Record) - (CHAR8*) &(((TYPE*) 0)->Field)))
+
+#define INTEL_VID 0x8086
+#define TCG_VID_OFFSET 0x0F00
+
+BOOLEAN iTPMVerifyMeStatus( );
+
+#define TPM_PEI_PRIVATE_DATA_FROM_THIS( This ) \
+ _CR( This, TPM_PEI_PRIVATE_DATA, TpmPpi )
+
+typedef struct _TPM_PEI_PRIVATE_DATA
+{
+ PEI_TPM_PPI TpmPpi;
+ EFI_PHYSICAL_ADDRESS BaseAddr;
+} TPM_PEI_PRIVATE_DATA;
+
+#if TCG_LEGACY == 1
+
+typedef struct _TPM_PEI_CALLBACK
+{
+ EFI_PEI_NOTIFY_DESCRIPTOR NotifyDesc;
+ EFI_FFS_FILE_HEADER *FfsHeader;
+
+} TPM_PEI_CALLBACK;
+
+
+VOID TpmPeiCallMPDriver(IN EFI_PEI_SERVICES **PeiServices, IN UINT8 CFuncID,
+ TPMTransmitEntryStruct *CData, UINT32* OUT CRetVal);
+
+EFI_GUID gTpmCallbackguid = AMI_TPM_LEGACY_GUID;
+#endif
+
+
+#if TCG_LEGACY == 0
+EFI_STATUS
+EFIAPI TpmPeiInit(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ TPM_PEI_PRIVATE_DATA *Private;
+
+ Private = TPM_PEI_PRIVATE_DATA_FROM_THIS( This );
+ return TisRequestLocality(
+ (TPM_1_2_REGISTERS_PTR)( UINTN ) Private->BaseAddr);
+}
+
+EFI_STATUS
+EFIAPI TpmPeiClose(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ TPM_PEI_PRIVATE_DATA *Private;
+
+ Private = TPM_PEI_PRIVATE_DATA_FROM_THIS( This );
+ return TisReleaseLocality(
+ (TPM_1_2_REGISTERS_PTR)( UINTN ) Private->BaseAddr);
+}
+
+EFI_STATUS
+EFIAPI TpmPeiGetStatusInfo(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI TpmPeiTransmit(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN UINTN NoInputBuffers,
+ IN TPM_TRANSMIT_BUFFER *InputBuffers,
+ IN UINTN NoOutputBuffers,
+ IN OUT TPM_TRANSMIT_BUFFER *OutputBuffers )
+{
+ TPM_PEI_PRIVATE_DATA *Private;
+ TPM_1_2_REGISTERS_PTR TpmReg;
+
+ Private = TPM_PEI_PRIVATE_DATA_FROM_THIS( This );
+ TpmReg = (TPM_1_2_REGISTERS_PTR)( UINTN ) Private->BaseAddr;
+ return TpmLibPassThrough(
+ TpmReg,
+ NoInputBuffers,
+ InputBuffers,
+ NoOutputBuffers,
+ OutputBuffers
+ );
+}
+
+
+EFI_STATUS
+EFIAPI CrbTpmPeiInit(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI CrbTpmPeiClose(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI CrbTpmPeiGetStatusInfo(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+EFIAPI CrbTpmPeiTransmit(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN UINTN NoInputBuffers,
+ IN TPM_TRANSMIT_BUFFER *InputBuffers,
+ IN UINTN NoOutputBuffers,
+ IN OUT TPM_TRANSMIT_BUFFER *OutputBuffers )
+{
+ return EFI_UNSUPPORTED;
+}
+#else
+
+//**********************************************************************
+//<AMI_PHDR_START>
+//
+// Procedure: EMpTpmPeiInit
+//
+// Description: Call to OEM driver to initialize TPM
+//
+//
+// Input: IN PEI_TPM_PPI *This,
+// IN EFI_PEI_SERVICES **PeiServices
+//
+// Output: EFI STATUS
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//<AMI_PHDR_END>
+//**********************************************************************
+EFI_STATUS
+EFIAPI TpmPeiInit(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_SUCCESS;
+}
+
+
+
+//**********************************************************************
+//<AMI_PHDR_START>
+//
+// Procedure: EMpTpmPeiClose
+//
+// Description: Call to OEM driver to Close TPM
+//
+//
+// Input: IN PEI_TPM_PPI *This,
+// IN EFI_PEI_SERVICES **PeiServices
+//
+// Output: EFI STATUS
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//<AMI_PHDR_END>
+//**********************************************************************
+EFI_STATUS
+EFIAPI TpmPeiClose(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_SUCCESS;
+}
+
+
+
+EFI_STATUS
+EFIAPI TpmPeiGetStatusInfo(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ return EFI_UNSUPPORTED;
+}
+
+
+
+//**********************************************************************
+//<AMI_PHDR_START>
+//
+// Procedure: EMpTpmPeiSHA1Setup
+//
+// Description: Helper function to help with Command transmission to TPM
+//
+//
+// Input: IN PEI_TPM_PPI *This,
+// IN EFI_PEI_SERVICES **PeiServices
+// IN UINTN NoInputBuffers
+// IN TPM_TRANSMIT_BUFFER *InputBuffers
+// IN OUT void **Buffer
+// IN UINT8 *SHA_ARRAY
+//
+// Output: BOOLEAN
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//<AMI_PHDR_END>
+//**********************************************************************
+BOOLEAN
+EFIAPI TpmPeiSHA1Setup(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN UINTN NoInputBuffers,
+ IN TPM_TRANSMIT_BUFFER *InputBuffers,
+ IN OUT void **Buffer,
+ IN UINT8 *SHA_ARRAY )
+{
+ TPM_1_2_CMD_HEADER *SHA1HeaderCheck;
+ void *Context = NULL;
+ UINT8 i = 0, loc = 0;
+
+ //check if this an SHA1 update or Complete call and set the buffer
+ //else no need to update the buffer is the same
+ SHA1HeaderCheck = (TPM_1_2_CMD_HEADER*)InputBuffers->Buffer;
+
+ if ( SHA1HeaderCheck->Ordinal !=
+ TPM_H2NL(TPM_ORD_SHA1CompleteExtend ) && SHA1HeaderCheck->Ordinal !=
+ TPM_H2NL( TPM_ORD_SHA1Update ) && SHA1HeaderCheck->Ordinal != TPM_H2NL(TPM_ORD_Extend))
+ {
+ //no need to modify buffers just pass it through
+ return FALSE;
+ }
+
+ if ( NoInputBuffers > 1 )
+ {
+ //if we get here it means the buffer needs to be modified!
+ for (; i < NoInputBuffers; i++ )
+ {
+ TcgCommonCopyMem( Context,
+ &SHA_ARRAY[loc],
+ InputBuffers[i].Buffer,
+ InputBuffers[i].Size );
+
+ loc += InputBuffers[i].Size;
+ }
+ }
+ else {
+ return FALSE;
+ }
+
+ *Buffer = SHA_ARRAY;
+ return TRUE;
+}
+
+
+//**********************************************************************
+//<AMI_PHDR_START>
+//
+// Procedure: EMpTpmPeiTransmit
+//
+// Description: TPM Transmit function
+//
+//
+// Input: IN PEI_TPM_PPI *This,
+// IN EFI_PEI_SERVICES **PeiServices,
+// IN UINTN NoInputBuffers,
+// IN TPM_TRANSMIT_BUFFER *InputBuffers,
+// IN UINTN NoOutputBuffers,
+// IN OUT TPM_TRANSMIT_BUFFER *OutputBuffers
+//
+// Output: EFI_STATUS
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//<AMI_PHDR_END>
+//**********************************************************************
+EFI_STATUS
+EFIAPI TpmPeiTransmit(
+ IN PEI_TPM_PPI *This,
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN UINTN NoInputBuffers,
+ IN TPM_TRANSMIT_BUFFER *InputBuffers,
+ IN UINTN NoOutputBuffers,
+ IN OUT TPM_TRANSMIT_BUFFER *OutputBuffers )
+{
+ TPM_PEI_PRIVATE_DATA *Private;
+ TPMTransmitEntryStruct FillESI;
+ UINT8 FuncID = MP_FUNCTION_TRANSMIT;
+ UINT32 Ret;
+ void *buffer;
+ UINT8 SHA_ARRAY[INTERNAL_SHA_ARRAY_LENGTH];
+ UINT8 SHA_ARRAY_OUT[INTERNAL_SHA_ARRAY_LENGTH];
+ BOOLEAN FillBuff = FALSE;
+ void *Context = NULL;
+ UINT8 i = 0;
+ UINT8 loc = 0;
+
+
+ if ( !TpmPeiSHA1Setup( This, PeiServices, NoInputBuffers, InputBuffers,
+ &buffer, SHA_ARRAY ))
+ {
+ FillESI.pbInBuf = (UINT32)(EFI_PHYSICAL_ADDRESS)InputBuffers->Buffer;
+ FillESI.dwInLen = (UINT32)InputBuffers->Size;
+ FillESI.pbOutBuf = (UINT32)(EFI_PHYSICAL_ADDRESS)OutputBuffers->Buffer;
+ FillESI.dwOutLen = (UINT32)OutputBuffers->Size;
+ }
+ else {
+ FillESI.pbInBuf = (UINT32)(EFI_PHYSICAL_ADDRESS)SHA_ARRAY;
+ FillESI.dwInLen = 0;
+
+ for (; i < NoInputBuffers; i++ )
+ {
+ FillESI.dwInLen += (UINT32)InputBuffers[i].Size;
+ }
+ i = 0;
+ FillESI.pbOutBuf = (UINT32)(EFI_PHYSICAL_ADDRESS)SHA_ARRAY_OUT;
+ FillBuff = TRUE;
+ FillESI.dwOutLen = 0;
+
+ for (; i < NoOutputBuffers; i++ )
+ {
+ FillESI.dwOutLen += OutputBuffers[i].Size;
+ }
+ }
+
+ Private = TPM_PEI_PRIVATE_DATA_FROM_THIS( This );
+ TpmPeiCallMPDriver( PeiServices, FuncID, &FillESI, &Ret );
+
+ if ( FillBuff ) //setup output buffer for the interface
+ {
+ i = 0;
+ for (; i < NoOutputBuffers; i++ )
+ {
+ TcgCommonCopyMem( Context,
+ OutputBuffers[i].Buffer,
+ &SHA_ARRAY_OUT[loc],
+ OutputBuffers[i].Size );
+
+ loc += OutputBuffers[i].Size;
+ }
+ }
+ return EFI_SUCCESS;
+}
+
+
+
+
+
+//**********************************************************************
+//<AMI_PHDR_START>
+//
+// Procedure: TpmPeiCallMPDriver
+//
+// Description: Interface to performing MP driver function calls in PEI
+// Uses _ASM directives. Return Value in EAX return as status
+//
+//
+// Input: IN EFI_PEI_SERVICES **PeiServices,
+// IN UINT8 CFuncID,
+// IN TPMTransmitEntryStruct * CData,
+// OUT UINT32* CRetVal
+//
+// Output: EFI_STATUS
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//<AMI_PHDR_END>
+//**********************************************************************
+VOID TpmPeiCallMPDriver(
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN UINT8 CFuncID,
+ TPMTransmitEntryStruct * CData,
+ UINT32* OUT CRetVal )
+{
+ UINT32 ReturnVal;
+ FAR32LOCALS CommonLegX;
+ EFI_GUID guidMA = EFI_TCG_MADriver_HOB_GUID;
+ EFI_GUID guidMP = EFI_TCG_MPDriver_HOB_GUID;
+ ESPFUNCSTRUCT EspStruct;
+ VOID *Temp = &ReturnVal;
+ MASTRUCT MA;
+ UINT32 MAStart;
+ UINT32 EspVal;
+
+
+ TPMTransmitEntryStruct IntCData = *CData;
+ UINT32 Address = (UINT32)&IntCData;
+
+ CommonLegX.Offset = 0;
+ CommonLegX.Selector = 0;
+
+ if (((UINT32)Temp & (UINT32)0xff000000) == (UINT32)0xff000000 )
+ {
+ FillDriverLoc( &MA.Offset, PeiServices, &guidMA );
+ MAStart = MA.Offset - MA.Codep;
+ CommonLegX.Offset = MA.Offset;
+ CommonLegX.Selector = SEL_flatCS;
+ Temp = &EspStruct;
+
+ if ( CommonLegX.Offset == NULL )
+ {
+ return;
+ }
+
+ _asm {
+ //fill esp
+ push esi
+ mov esi, [ReturnAdd]
+ mov [EspStruct.ReturnAddress], esi
+ mov esi, [MAStart]
+ mov [EspStruct.Header], esi
+ pop esi
+ mov EspVal, esp // Save ESP
+ mov al, [CFuncID]
+ mov [EspStruct.FuncNum], al
+ mov esp, Temp
+ call fword ptr [CommonLegX]
+ mov esp, EspVal // Restore ESP
+ReturnAdd:
+ mov ReturnVal, eax
+ }
+
+ *CRetVal = ReturnVal;
+ return;
+ }
+ else {
+ FillDriverLoc( &CommonLegX.Offset, PeiServices, &guidMP );
+ CommonLegX.Selector = SEL_flatCS;
+
+ _asm {
+ xor eax, eax
+ mov al, [CFuncID]
+ cmp eax, MP_FUNCTION_TRANSMIT
+ jnz Empty_Buff
+ mov ESI, Address
+Empty_Buff:
+ mov EspVal, esp // Save ESP
+ call fword ptr [CommonLegX];
+ mov ReturnVal, eax
+ mov esp, EspVal // Restore ESP
+
+ }
+ *CRetVal = ReturnVal;
+ }
+}
+
+#endif
+
+static TPM_PEI_PRIVATE_DATA mTpmPrivate = {
+ {
+ TpmPeiInit,
+ TpmPeiClose,
+ TpmPeiGetStatusInfo,
+ TpmPeiTransmit
+ },
+ TPM_BASE_ADDRESS
+};
+
+static TPM_PEI_PRIVATE_DATA CrbmTpmPrivate = {
+ {
+ CrbTpmPeiInit,
+ CrbTpmPeiClose,
+ CrbTpmPeiGetStatusInfo,
+ CrbTpmPeiTransmit
+ },
+ TPM_BASE_ADDRESS
+};
+
+
+
+#if TCG_LEGACY == 1
+//**********************************************************************
+//<AMI_PHDR_START>
+//
+// Procedure: InitLegacyTpmEntry
+//
+// Description: Entry point for TPM initialization after memory is installed
+//
+//
+// Input: IN EFI_FFS_FILE_HEADER *FfsHeader
+// IN EFI_PEI_SERVICES **PeiServices
+//
+// Output: EFI STATUS
+//
+// Modified:
+//
+// Referrals:
+//
+// Notes:
+//<AMI_PHDR_END>
+//**********************************************************************
+EFI_STATUS
+EFIAPI InitLegacyTpmEntry(
+IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDesc,
+ IN VOID *Ppi)
+{
+ UINT8 FuncID;
+ TPMTransmitEntryStruct EmptyBuf;
+ UINT32 Ret;
+
+ FuncID = MA_FUNCTION_INIT;
+ TpmPeiCallMPDriver( PeiServices, FuncID, &EmptyBuf, &Ret );
+ if ( !Ret )
+ {
+ return EFI_SUCCESS;
+ }
+ return EFI_DEVICE_ERROR;
+}
+#endif
+
+
+static EFI_PEI_PPI_DESCRIPTOR mPpiList[] = {
+ EFI_PEI_PPI_DESCRIPTOR_PPI
+ | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
+ &gPeiTpmPpiGuid,
+ &mTpmPrivate.TpmPpi
+};
+
+static EFI_PEI_PPI_DESCRIPTOR mCrbPpiList[] = {
+ EFI_PEI_PPI_DESCRIPTOR_PPI
+ | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
+ &gPeiTpmPpiGuid,
+ &CrbmTpmPrivate.TpmPpi
+};
+
+
+
+
+EFI_STATUS
+EFIAPI TpmPeiEntry(
+ IN EFI_FFS_FILE_HEADER *FfsHeader,
+ IN EFI_PEI_SERVICES **PeiServices )
+{
+ EFI_STATUS Status=EFI_NOT_FOUND;
+ BOOLEAN Temp = TRUE;
+#if TCG_LEGACY == 1
+ TPM_PEI_CALLBACK *Callback;
+#endif
+
+ if(!isTpm20CrbPresent()) (*PeiServices)->InstallPpi( PeiServices, mPpiList );
+
+#if TCG_LEGACY == 1
+ Status = (**PeiServices).AllocatePool(
+ PeiServices,
+ sizeof (TPM_PEI_CALLBACK),
+ &Callback);
+
+ if ( !EFI_ERROR( Status ))
+ {
+ Callback->NotifyDesc.Flags
+ = (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK
+ | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);
+ Callback->NotifyDesc.Guid = &gTpmCallbackguid;
+ Callback->NotifyDesc.Notify = InitLegacyTpmEntry;
+ Callback->FfsHeader = FfsHeader;
+
+ Status = (*PeiServices)->NotifyPpi( PeiServices,
+ &Callback->NotifyDesc );
+ }
+ return EFI_SUCCESS;
+#endif
+
+ if ( Temp )
+ {
+ Status = IsTpmPresent((TPM_1_2_REGISTERS_PTR)(
+ UINTN ) mTpmPrivate.BaseAddr );
+
+ if ( EFI_ERROR( Status ))
+ {
+ if(!isTpm20CrbPresent())return Status;
+ else{
+ Status = (*PeiServices)->InstallPpi( PeiServices, mCrbPpiList );
+ return Status;
+ }
+ }
+ }
+
+ return Status;
+} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 04:33:36 +0000