diff options
Diffstat (limited to 'Core/EM/TCG2/Common/TcgPeiAfterMem.c')
| -rw-r--r-- | Core/EM/TCG2/Common/TcgPeiAfterMem.c | 492 |
1 files changed, 492 insertions, 0 deletions
diff --git a/Core/EM/TCG2/Common/TcgPeiAfterMem.c b/Core/EM/TCG2/Common/TcgPeiAfterMem.c new file mode 100644 index 0000000..cc659e6 --- /dev/null +++ b/Core/EM/TCG2/Common/TcgPeiAfterMem.c @@ -0,0 +1,492 @@ +/*++ + + 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: + + TcgPei.c + + Abstract: + + PEIM that provides TCG services + + --*/ +//************************************************************************* +// $Header: /Alaska/SOURCE/Modules/TCG2/Common/TcgPei/TcgPeiAfterMem/TcgPeiAfterMem.c 1 4/21/14 2:16p Fredericko $ +// +// $Revision: 1 $ +// +// $Date: 4/21/14 2:16p $ +//************************************************************************* +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/TCG2/Common/TcgPei/TcgPeiAfterMem/TcgPeiAfterMem.c $ +// +// 1 4/21/14 2:16p Fredericko +// +// 1 10/08/13 12:02p Fredericko +// Initial Check-In for Tpm-Next module +// +// 2 10/03/13 1:57p Fredericko +// +// 1 7/10/13 5:51p Fredericko +// [TAG] EIP120969 +// [Category] New Feature +// [Description] TCG (TPM20) +// +// 3 1/12/12 12:11p Fredericko +// Remove unused function. +// +// 2 8/29/11 6:49p Fredericko +// [TAG] EIP0000 +// [Category] Improvement +// [Description] Include Open and Close of locality 0 for TPM Ppi +// functions +// [Files] TcgPeiAfterMem.c +// +// 1 8/22/11 1:45p Fredericko +// [TAG] EIP61168 +// [Category] Improvement +// [Description] Reload TCG PPI from memory when Memory is Installed +// [Files] TcgPeiAfterMem.cif +// TcgPeiAfterMem.c +// xTcgPeiAfterMem.c +// TcgPeiAfterMem.mak +// +// 54 3/31/11 4:49p Fredericko +// Changes for TCG_LEGACY support +// +// 53 3/29/11 12:57p Fredericko +// +// 52 3/28/11 2:12p 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 +// +// 50 8/04/10 5:16p Fredericko +// Changes to flow of Lock Physical Presence for support Smi PPI changes +// +// 49 5/21/10 4:31p Fredericko +// Changes for some build errors that happened with MOR support +// +// 48 5/19/10 5:51p Fredericko +// Updated AMI Function Headers +// Code Beautification +// EIP 37653 +// +//************************************************************************* +//************************************************************************* +//<AMI_FHDR_START> +// +// Name: TcgPei.c +// +// Description: +// Functions for early initialization of TPM are executed here +// +//<AMI_FHDR_END> +//************************************************************************* +#include <Efi.h> +#include "TcgCommon.h" +#include <AmiPeiLib.h> +#include <Sha.h> +#include <TcgMisc.h> +#include <token.h> +#include <TpmLib.h> +#include <TcgPc.h> +#include "PPI\TcgService\TcgService.h" +#include "PPI\TpmDevice\TpmDevice.h" +#include "PPI\CpuIo.h" +#include "PPI\LoadFile.h" +#include <FFS.h> + + +//********************************************************************* +// GLOBAL DEFINITIONS +//********************************************************************* + + +#pragma pack(1) +typedef struct _TCG_PEI_CALLBACK_CONTEXT +{ + PEI_TPM_PPI *TpmDevice; + EFI_PEI_SERVICES **PeiServices; +} TCG_PEI_CALLBACK_CONTEXT; +#pragma pack() + + +EFI_GUID gEfiPeiAmiTcgLogHobGuid = EFI_TCG_LOG_HOB_GUID; +EFI_GUID gPeiTpmPpiGuid = PEI_TPM_PPI_GUID; +EFI_GUID gPeiTcgPpiGuid = PEI_TCG_PPI_GUID; + +static +EFI_STATUS +__stdcall FillCallbackContext( + IN EFI_PEI_SERVICES **PeiService, + OUT TCG_PEI_CALLBACK_CONTEXT *CallbackContext ) +{ + CallbackContext->PeiServices = PeiService; + return (*PeiService)->LocatePpi( + PeiService, + &gPeiTpmPpiGuid, + 0, + NULL, + &CallbackContext->TpmDevice + ); +} + +EFI_STATUS +EFIAPI TcgPeiGetEventLog( + IN EFI_PEI_SERVICES **PeiServices, + OUT TCG_LOG_HOB **EventLog ) +{ + EFI_STATUS Status; + VOID *HobStart; + + Status = (*PeiServices)->GetHobList( PeiServices, &HobStart ); + + if ( EFI_ERROR( Status )) + { + return Status; + } + + return GetNextGuidHob( &HobStart, &gEfiPeiAmiTcgLogHobGuid, EventLog, NULL ); +} + + + + +//********************************************************************** +//<AMI_PHDR_START> +// Name: TcgPeiLogEvent +// +// Description: TCGPEI common function to Hash, Log and Extend data +// using software SHA-1 +// +// Input: IN *This +// IN **PeiServices +// IN *Event, +// IN *EventNum +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************* +EFI_STATUS +EFIAPI TcgPeiLogEvent( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN TCG_PCR_EVENT *Event, + OUT UINT32 *EventNum ) +{ + EFI_STATUS Status = EFI_SUCCESS; + TCG_LOG_HOB *TcgLog; + TCG_PEI_CALLBACK_CONTEXT Context; + UINT8 HashAlgo = 0; + + + //only log events if TPM is not deactivated +#if defined LOG_EV_EFI_ACTION && LOG_EV_EFI_ACTION == 0 + if(Event->EventType == EV_EFI_ACTION) + { + return EFI_SUCCESS; + } +#endif + + Status = FillCallbackContext( PeiServices, &Context ); + ASSERT_PEI_ERROR( PeiServices, Status ); + + Status = TcgPeiGetEventLog( PeiServices, &TcgLog ); + if ( EFI_ERROR( Status )) + { + goto Exit; + } + + Status = TcgCommonLogEvent( + &Context, + (TCG_PCR_EVENT*)(TcgLog + 1), + &TcgLog->TableSize, + TcgLog->TableMaxSize, + Event, HashAlgo); + + if ( EFI_ERROR( Status )){ + goto Exit; + } + + *EventNum = TcgLog->EventNum; + TcgLog->EventNum++; + +Exit: + return Status; +} + + + + + +EFI_STATUS +__stdcall TcgPeiCommonExtend( + IN VOID *CallbackContext, + IN TPM_PCRINDEX PCRIndex, + IN TCG_DIGEST *Digest, + OUT TCG_DIGEST *NewPCRValue ) +{ + TPM_1_2_CMD_HEADER cmdHeader; + TPM_1_2_RET_HEADER retHeader; + TPM_TRANSMIT_BUFFER InBuffer[3], OutBuffer[2]; + static BOOLEAN SupportType = 0xff; + + InBuffer[0].Buffer = &cmdHeader; + InBuffer[0].Size = sizeof (cmdHeader); + InBuffer[1].Buffer = &PCRIndex; + InBuffer[1].Size = sizeof (PCRIndex); + InBuffer[2].Buffer = Digest->digest; + InBuffer[2].Size = sizeof (Digest->digest); + + OutBuffer[0].Buffer = &retHeader; + OutBuffer[0].Size = sizeof (retHeader); + OutBuffer[1].Buffer = NewPCRValue->digest; + OutBuffer[1].Size = sizeof (NewPCRValue->digest); + + cmdHeader.Tag = TPM_H2NS( TPM_TAG_RQU_COMMAND ); + cmdHeader.ParamSize = TPM_H2NL(sizeof (cmdHeader) + + sizeof (PCRIndex) + sizeof (Digest->digest)); + + cmdHeader.Ordinal = TPM_H2NL( TPM_ORD_Extend ); + PCRIndex = TcgCommonH2NL( PCRIndex ); + + return TCGPASSTHROUGH( CallbackContext, InBuffer, OutBuffer ); +} + + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Name: TcgPeiHashLogExtendEventSW +// Description: TCGPEI Software function to Hash, Log and Extend data +// using software SHA-1 +// +// Input: IN *This +// IN **PeiServices +// IN *HashData +// IN HashDataLen +// IN OUT *NewEvent, +// OUT *EventNum +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************* +EFI_STATUS TcgPeiHashLogExtendEventSW( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN UINT8 *HashData, + IN UINT32 HashDataLen, + IN OUT TCG_PCR_EVENT *NewEvent, + OUT UINT32 *EventNum ) +{ + EFI_STATUS Status; + TCG_DIGEST NewPCRValue; + TCG_PEI_CALLBACK_CONTEXT Context; + + Status = FillCallbackContext( PeiServices, &Context ); + ASSERT_PEI_ERROR( PeiServices, Status ); + +#if defined LOG_EV_EFI_ACTION && LOG_EV_EFI_ACTION == 0 + if(NewEvent->EventType == EV_EFI_ACTION) + { + return EFI_SUCCESS; + } +#endif + + Status = SHA1HashAll( &Context, HashData, HashDataLen, &NewEvent->Digest ); + + if ( EFI_ERROR( Status )) + { + return Status; + } + + Status = Context.TpmDevice->Init( Context.TpmDevice, PeiServices ); + + if ( EFI_ERROR( Status )) + { + goto Exit; + } + + Status = TcgPeiCommonExtend( + &Context, + NewEvent->PCRIndex, + &NewEvent->Digest, + &NewPCRValue + ); + + if ( EFI_ERROR( Status )) + { + goto Exit; + } + + Status = TcgPeiLogEvent( This, PeiServices, NewEvent, EventNum ); + +Exit: + Context.TpmDevice->Close( Context.TpmDevice, PeiServices ); + return Status; +} + + + + + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Name: TcgPeiPassThroughToTpm +// +// Description: TCGPEI common function to abstract passing commands to the TPM +// FIFO +// +// Input: IN *This +// IN **PeiServices +// IN TpmInputParameterBlockSize +// IN *TpmInputParameterBlock +// IN TpmOutputParameterBlockSize +// IN *TpmOutputParameterBlock +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI TcgPeiPassThroughToTpm( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN UINT32 TpmInputParameterBlockSize, + IN UINT8 *TpmInputParameterBlock, + IN UINT32 TpmOutputParameterBlockSize, + IN UINT8 *TpmOutputParameterBlock ) +{ + EFI_STATUS Status; + TPM_TRANSMIT_BUFFER InBuffer[1], OutBuffer[1]; + TCG_PEI_CALLBACK_CONTEXT Context; + + Status = FillCallbackContext( PeiServices, &Context ); + ASSERT_PEI_ERROR( PeiServices, Status ); + + InBuffer[0].Buffer = TpmInputParameterBlock; + InBuffer[0].Size = TpmInputParameterBlockSize; + OutBuffer[0].Buffer = TpmOutputParameterBlock; + OutBuffer[0].Size = TpmOutputParameterBlockSize; + + return TcgCommonPassThrough( + &Context, + sizeof (InBuffer) / sizeof (*InBuffer), + InBuffer, + sizeof (OutBuffer) / sizeof (*OutBuffer), + OutBuffer + ); +} + + +static PEI_TCG_PPI mTcgPpi = { + TcgPeiHashLogExtendEventSW, + TcgPeiLogEvent, + TcgPeiPassThroughToTpm +}; + +static EFI_PEI_PPI_DESCRIPTOR mTcgPpiList[] = { + { + EFI_PEI_PPI_DESCRIPTOR_PPI + | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST, + &gPeiTcgPpiGuid, + &mTcgPpi + } +}; + + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Procedure: TcgPeiEntry +// +// Description: Entry point to Memory Absent and Memory Present Initialization +// for TPM +// +// +// Input: IN EFI_FFS_FILE_HEADER *FfsHeader +// IN EFI_PEI_SERVICES **PeiServices, +// +// Output: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI TcgPeiMemoryCallbackEntry( + IN EFI_PEI_SERVICES **PeiServices +) +{ + EFI_PEI_PPI_DESCRIPTOR *PpiDesc; + PEI_TCG_PPI *TcgPpi; + EFI_STATUS Status; + + Status = (*PeiServices)->LocatePpi( + PeiServices, + &gPeiTcgPpiGuid, + 0, + &PpiDesc, + &TcgPpi); + + + Status = (*PeiServices)->ReInstallPpi( + PeiServices, + PpiDesc, + &mTcgPpiList[0] ); + + ASSERT_PEI_ERROR( PeiServices, Status ); + + Status = (*PeiServices)->LocatePpi( + PeiServices, + &gPeiTcgPpiGuid, + 0, + &PpiDesc, + &TcgPpi ); + + ASSERT_PEI_ERROR( PeiServices, Status ); + + return Status; +} + + |