diff options
Diffstat (limited to 'Core/EM/TCG2/Common/TpmDxe.c')
| -rw-r--r-- | Core/EM/TCG2/Common/TpmDxe.c | 545 |
1 files changed, 545 insertions, 0 deletions
diff --git a/Core/EM/TCG2/Common/TpmDxe.c b/Core/EM/TCG2/Common/TpmDxe.c new file mode 100644 index 0000000..662e91a --- /dev/null +++ b/Core/EM/TCG2/Common/TpmDxe.c @@ -0,0 +1,545 @@ +/*++ + + 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: + + TpmDxe.h + + Abstract: + + DXE driver for TPM devices + + --*/ + +//************************************************************************* +// $Header: /Alaska/SOURCE/Modules/TCG2/Common/TcgDxe/TpmDxe.c 2 4/21/14 3:17p Fredericko $ +// +// $Revision: 2 $ +// +// $Date: 4/21/14 3:17p $ +//************************************************************************* +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/TCG2/Common/TcgDxe/TpmDxe.c $ +// +// 2 4/21/14 3:17p Fredericko +// +// 1 4/21/14 2:16p Fredericko +// +// 2 3/11/14 6:35p Fredericko +// [TAG] EIP151925 +// [Category] New Feature +// [Description] Changes for TcgGeneric Regression Testing +// +// 1 10/08/13 12:03p Fredericko +// Initial Check-In for Tpm-Next module +// +// 2 10/03/13 2:00p Fredericko +// +// 1 7/10/13 5:51p Fredericko +// [TAG] EIP120969 +// [Category] New Feature +// [Description] TCG (TPM20) +// +// 13 11/14/11 1:27p Fredericko +// Changes for Tcgprotocol interface. Function is currently not used. +// +// 12 3/31/11 4:57p Fredericko +// Changes for TCG_LEGACY support +// +// 11 3/29/11 1:12p Fredericko +// +// 10 3/28/11 2:19p 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 +// +// 9 5/19/10 5:31p Fredericko +// Included File Header +// Included File Revision History +// Code Beautification +// EIP 37653 +// +//************************************************************************* +//************************************************************************* +//<AMI_FHDR_START> +// +// Name: TpmDxe.c +// +// Description: +// Abstracted functions for Tpm protocol are defined here +// +//<AMI_FHDR_END> +//************************************************************************* +#include <Efi.h> +#include "TcgTpm12.h" +#include <TpmLib.h> +#include <Protocol\TpmDevice\TpmDevice.h> +#include <AmiDxeLib.h> +#include <token.h> +#include "Tpm20CRBLib.h" + + +#define _CR( Record, TYPE,\ + Field )((TYPE*) ((CHAR8*) (Record) - (CHAR8*) &(((TYPE*) 0)->Field))) + +EFI_GUID TcgGuid = AMI_TCG_RESETVAR_HOB_GUID; + +VOID* LocateATcgHob ( + UINTN NoTableEntries, + EFI_CONFIGURATION_TABLE *ConfigTable, + EFI_GUID *HOB_guid ); + +#define TPM_DXE_PRIVATE_DATA_FROM_THIS( this ) \ + _CR( this, TPM_DXE_PRIVATE_DATA, TpmInterface ) + +typedef struct _TPM_DXE_PRIVATE_DATA +{ + EFI_TPM_DEVICE_PROTOCOL TpmInterface; + EFI_PHYSICAL_ADDRESS BaseAddr; +} TPM_DXE_PRIVATE_DATA; + +FixedDelay(UINT32 dCount); + +static UINTN TpmFuncID; +static TPMTransmitEntryStruct TpmEmptyBuf; +static UINT32 TpmRet; +static UINTN ReadytoBootVar = 0; + + +#if TCG_LEGACY == 0 +EFI_STATUS +EFIAPI TpmDxeInit( + IN EFI_TPM_DEVICE_PROTOCOL *This ) +{ + EFI_STATUS Status; + volatile TPM_1_2_REGISTERS_PTR TpmReg; + TpmReg = (TPM_1_2_REGISTERS_PTR)(( UINTN ) (PORT_TPM_IOMEMBASE)); + Status = TisRequestLocality(TpmReg); + return Status; +} + +EFI_STATUS +EFIAPI TpmDxeClose( + IN EFI_TPM_DEVICE_PROTOCOL *This ) +{ + EFI_STATUS Status; + volatile TPM_1_2_REGISTERS_PTR TpmReg; + TpmReg = (TPM_1_2_REGISTERS_PTR)(( UINTN ) (PORT_TPM_IOMEMBASE)); + Status = TisReleaseLocality(TpmReg); + return Status; +} + +EFI_STATUS +EFIAPI TpmDxeGetStatusInfo( + IN EFI_TPM_DEVICE_PROTOCOL *This ) +{ + return EFI_UNSUPPORTED; +} + +EFI_STATUS +EFIAPI TpmDxeTransmit( + IN EFI_TPM_DEVICE_PROTOCOL *This, + IN UINTN NoInBuffers, + IN TPM_TRANSMIT_BUFFER *InBuffers, + IN UINTN NoOutBuffers, + IN OUT TPM_TRANSMIT_BUFFER *OutBuffers ) +{ + volatile TPM_1_2_REGISTERS_PTR TpmReg; + TpmReg = (TPM_1_2_REGISTERS_PTR)(( UINTN ) (PORT_TPM_IOMEMBASE)); + + TRACE(( TRACE_ALWAYS,"TpmReg.Access = %x \n", TpmReg->Access)); + return TpmLibPassThrough( + TpmReg, + NoInBuffers, + InBuffers, + NoOutBuffers, + OutBuffers + ); +} + +#else + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Name: TpmDxeInit +// +// Description: Call to OEM driver to initialize TPM. +// +// Input: IN EFI_TPM_DEVICE_PROTOCOL *This +// +// Returns: EFI_STATUS +// +// Output: +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI TpmDxeInit( + IN EFI_TPM_DEVICE_PROTOCOL *This ) +{ + return EFI_SUCCESS; //init command is only sent once and done in PEI +} + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Name: TpmDxeClose +// +// Description: Close TPM connection for locality 0 +// +// Input: IN PEI_TPM_PPI *This, +// IN EFI_PEI_SERVICES **PeiServices +// +// Output: EFI STATUS +/// +// Output: +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI TpmDxeClose( + IN EFI_TPM_DEVICE_PROTOCOL *This ) +{ + return EFI_SUCCESS; +} + + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// +// Name: TpmDxeGetStatusInfo +// +// Description: GetStatus Info from MP driver +// +// Input: IN PEI_TPM_PPI *This, +// IN EFI_PEI_SERVICES **PeiServices +// +// Output: EFI STATUS +// +// Output: +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI TpmDxeGetStatusInfo( + IN EFI_TPM_DEVICE_PROTOCOL * This + ) +{ + return EFI_UNSUPPORTED; +} + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Procedure: SetEfiOSTransitions +// +// Description: SetEfiOSTransitions +// +// Input: IN EFI_EVENT efiev +// IN VOID *ctx +// +// Output: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +void SetEfiOSTransitions( + IN EFI_EVENT efiev, + IN VOID *ctx ) +{ + ReadytoBootVar = 1; +} + + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Procedure: EfiOSReadyToBoot +// +// Description: Sets ready to boot callback on ready to boot +// +// Input: NONE +// +// Output: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI EfiOSReadyToBoot() +{ + EFI_EVENT ReadToBootEvent; + EFI_STATUS Status; + + #if defined(EFI_EVENT_SIGNAL_READY_TO_BOOT)\ + && EFI_SPECIFICATION_VERSION < 0x20000 + + Status = pBS->CreateEvent( EFI_EVENT_SIGNAL_READY_TO_BOOT, + EFI_TPL_CALLBACK, + SetEfiOSTransitions, NULL, &ReadToBootEvent ); + + #else + Status = CreateReadyToBootEvent( EFI_TPL_CALLBACK-1, + SetEfiOSTransitions, + NULL, + &ReadToBootEvent ); + #endif + + return Status; +} + + + +EFI_STATUS +EFIAPI EfiPreOSTransition( + IN EFI_TPM_DEVICE_PROTOCOL *This, + IN UINTN NoInBuffers, + IN TPM_TRANSMIT_BUFFER *InBuffers, + IN UINTN NoOutBuffers, + IN OUT TPM_TRANSMIT_BUFFER *OutBuffers ) +{ + TPM_DXE_PRIVATE_DATA *Private; + TPM_1_2_REGISTERS_PTR TpmReg; + EFI_STATUS Status; + + Private = TPM_DXE_PRIVATE_DATA_FROM_THIS( This ); + + TisRequestLocality( + (TPM_1_2_REGISTERS_PTR)( UINTN ) Private->BaseAddr); + + TpmReg = (TPM_1_2_REGISTERS_PTR)( UINTN ) Private->BaseAddr; + + Status = TpmLibPassThrough( + TpmReg, + NoInBuffers, + InBuffers, + NoOutBuffers, + OutBuffers + ); + + TisReleaseLocality( + (TPM_1_2_REGISTERS_PTR)( UINTN ) Private->BaseAddr); + + return Status; +} + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// +// Name: TpmDxeTransmit +// +// Description: Dxe Transmit Tcg Data +// +// Input: IN EFI_TPM_DEVICE_PROTOCOL *This, +// IN UINTN NoInBuffers, +// IN TPM_TRANSMIT_BUFFER *InBuffers, +// IN UINTN NoOutBuffers, +// IN OUT TPM_TRANSMIT_BUFFER *OutBuffers +// +// Output: EFI STATUS +// +// Output: +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** + +EFI_STATUS +EFIAPI TpmDxeTransmit( + IN EFI_TPM_DEVICE_PROTOCOL *This, + IN UINTN NoInBuffers, + IN TPM_TRANSMIT_BUFFER *InBuffers, + IN UINTN NoOutBuffers, + IN OUT TPM_TRANSMIT_BUFFER *OutBuffers ) +{ + TPM_DXE_PRIVATE_DATA *Private; + TPMTransmitEntryStruct FillESI; + UINTN FuncID = (UINTN)MP_FUNCTION_TRANSMIT; + UINT32 Ret; + UINT8 *SHA_ARRAY_OUT = NULL; + BOOLEAN FillBuff = FALSE; + BOOLEAN Other = FALSE; + UINTN i = 0, loc = 0; + UINT8 *Tpm_SHA_ARRAY= NULL; + EFI_STATUS Status; + + + if(NoInBuffers == 0 || InBuffers == NULL || NoOutBuffers == 0 || OutBuffers == NULL) + return EFI_INVALID_PARAMETER; + + if(ReadytoBootVar == 1) + { + return EfiPreOSTransition(This, NoInBuffers, InBuffers, NoOutBuffers, OutBuffers); + } + + + FillESI.dwInLen = 0; + FillESI.dwOutLen = 0; + + for (; i < NoInBuffers; i++ ) + { + FillESI.dwInLen += (UINT32)InBuffers[i].Size; + } + + Status = pBS-> AllocatePool( EfiBootservicesData, FillESI.dwInLen, &Tpm_SHA_ARRAY); + if(EFI_ERROR(Status))return Status; + + + for (i = 0; i < NoOutBuffers; i++ ) + { + FillESI.dwOutLen += (UINT32)OutBuffers[i].Size; + } + + Status = pBS-> AllocatePool( EfiBootservicesData, FillESI.dwOutLen, &SHA_ARRAY_OUT ); + if(EFI_ERROR(Status))return Status; + + + for (i = 0; i < NoInBuffers; i++ ) + { + pBS->CopyMem(Tpm_SHA_ARRAY + loc, + InBuffers[i].Buffer, + InBuffers[i].Size ); + + loc += InBuffers[i].Size; + } + + FillESI.pbInBuf = (UINT32)(EFI_PHYSICAL_ADDRESS) Tpm_SHA_ARRAY; + FillESI.pbOutBuf = (UINT32)(EFI_PHYSICAL_ADDRESS) SHA_ARRAY_OUT; + + Private = TPM_DXE_PRIVATE_DATA_FROM_THIS( This ); + TpmDxeCallMPDriver( FuncID, &FillESI, &Ret ); + + if ( Tpm_SHA_ARRAY != NULL ) + { + pBS->FreePool( Tpm_SHA_ARRAY ); + } + + loc = 0; + + for (i=0; i < NoOutBuffers; i++ ) + { + pBS->CopyMem( OutBuffers[i].Buffer, + &SHA_ARRAY_OUT[loc], + OutBuffers[i].Size ); + loc += (UINTN)OutBuffers[i].Size; + } + + if ( SHA_ARRAY_OUT != NULL ) + { + pBS->FreePool( SHA_ARRAY_OUT ); + } + + return EFI_SUCCESS; +} + +#endif + +static TPM_DXE_PRIVATE_DATA mTpmPrivate = { + { + TpmDxeInit, + TpmDxeClose, + TpmDxeGetStatusInfo, + TpmDxeTransmit + }, + TPM_BASE_ADDRESS +}; + + + + +EFI_STATUS +EFIAPI TpmDxeEntry( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable ) +{ + EFI_STATUS Status; +#if TCG_LEGACY == 1 + EFI_GUID gMpDriverHobGuid = EFI_TCG_MPDriver_HOB_GUID; + FAR32LOCALS *TempLoc = NULL; +#endif + +#if TCG_LEGACY == 0 + Status = IsTpmPresent((TPM_1_2_REGISTERS_PTR)( UINTN ) mTpmPrivate.BaseAddr ); + + if ( EFI_ERROR( Status )) + { + if(isTpm20CrbPresent())return EFI_SUCCESS; + return EFI_UNLOAD_IMAGE; + } +#else + TempLoc = (FAR32LOCALS*)LocateATcgHob( pST->NumberOfTableEntries, + pST->ConfigurationTable, + &gMpDriverHobGuid ); + + + if(TempLoc == NULL || TempLoc->Offset == NULL ) return EFI_NOT_FOUND; + Prepare2Thunkproc( TempLoc->Offset, TempLoc->Selector ); + Status = EfiOSReadyToBoot(); +#endif + + Status = pBS->InstallMultipleProtocolInterfaces( + &ImageHandle, + &gEfiTpmDeviceProtocolGuid, + &mTpmPrivate.TpmInterface, + NULL + ); + + return Status; +} + + + +EFI_GUID gEfiTpmDeviceProtocolGuid = EFI_TPM_DEVICE_PROTOCOL_GUID; |