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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 DXE/AmiTxtDxe.c 11 6/11/15 10:31p Crystallee $
//
// $Revision: 11 $
//
// $Date: 6/11/15 10:31p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/AMI TXT DXE/AmiTxtDxe.c $
//
// 11 6/11/15 10:31p 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.
//
// 10 4/10/15 3:11a Crystallee
//
// 9 5/05/14 11:57p Hsingyingchung
// [TAG] EIP167029
// [Category] Improvement
// [Description] Keep the original attribute of "Setup" variable when
// use SetVariable().
//
// 8 1/17/14 4:08a Crystallee
// [TAG] None
// [Category] Improvement
// [Description] Show Txt information in setup->Advanced ->Intel Txt
// Information page.
//
// 7 8/28/13 5:57a Crystallee
// [TAG] EIP134339
// [Category] Bug Fix
// [Severity] Important
// [Symptom] [Sharkbay]Build error after update Haswell Cpu module
// [RootCause] If token TCG_SUPPORT is disabled, TpmSupport setup data
// will not define, then cause built error.
// [Solution] Add token TCG_SUPPORT condition when use TpmSupport setup
// data.
//
// 6 8/14/13 5:07a Davidhsieh
//
// 4 7/23/13 7:47a Crystallee
// [TAG] EIP128089
// [Category] Improvement
// [Description] TXT will be disabled and grayed out in Setup when TPM
// Support is disabled.
//
// 3 9/13/12 4:13a Davidhsieh
// [TAG] None
// [Category] Bug Fix
// [Severity] Important
// [Symptom] Desable TCG causes BIOS building error
// [RootCause] TCG setup data is used in TxtPei and the data is not
// exist when TCG disabled.
// [Solution] Do not use the TCG setup data when TCG disabled
//
// 2 9/05/12 1:36a Davidhsieh
// [TAG] EIP97350
// [Category] Improvement
// [Description] Add AUX index define in TPM NVRAM to avoid system keep
// reset when TXT enabled
//
// 1 7/18/12 2:07a Davidhsieh
// [TAG] None
// [Category] Improvement
// [Description] AMI TXT Dxe module part create
//
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: AmiTxtDxe.c
//
// Description:
//
//<AMI_FHDR_END>
//**********************************************************************
//
#include "AmiTxtDxe.h"
#include "Txt.h"
AMI_TXT_INFO_PROTOCOL gAmiTxtInfoProtocol = {0};
AMI_TXT_INFO_DATA gAmiTxtInfoData = {0};
EFI_GUID gHobListGuid = HOB_LIST_GUID;
EFI_GUID gAmiTxtInfoProtocolGuid = AMI_TXT_INFO_PROTOCOL_GUID;
#if TCG_SUPPORT || TCG2Support
EFI_GUID gSetupGuid = SETUP_GUID;
EFI_GUID gEfiTcgProtocolGuid = EFI_TCG_PROTOCOL_GUID;
EFI_GUID gEfiTpmDeviceProtocolGuid = EFI_TPM_DEVICE_PROTOCOL_GUID;
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: LtSendTpmCommand
//
// Description: Sends a command to the TPM
//
// Input: *EFI_TCG_PROTOCOL - Tcg Protocol type.
// UINT32 - Tcg Command ordinal.
// int - cmd datasize.
// VOID* - cmd data.
//
// Output: UINT32 - TPM_RESULT
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
UINT32
LtSendTpmCommand (
IN EFI_TCG_PROTOCOL *tcg,
IN UINT32 ord,
IN int dataSize,
IN VOID *data
)
{
EFI_STATUS Status;
static UINT8 result[0x400];
TPM_1_2_RET_HEADER* tpmResult;
struct {
TPM_1_2_CMD_HEADER hdr;
UINT8 data[0x100];
} cmd;
cmd.hdr.Tag = TPM_H2NS (TPM_TAG_RQU_COMMAND);
cmd.hdr.ParamSize = TPM_H2NL (sizeof(TPM_1_2_RET_HEADER) + dataSize);
cmd.hdr.Ordinal = TPM_H2NL (ord);
pBS->CopyMem(cmd.data, data, dataSize);
Status = tcg->PassThroughToTpm ( tcg, \
sizeof(TPM_1_2_CMD_HEADER) + dataSize, \
(UINT8*)&cmd, \
sizeof (result), \
(UINT8*)&result );
tpmResult = (TPM_1_2_RET_HEADER*)result;
if ( EFI_ERROR(Status) || (tpmResult->RetCode != 0))
TRACE((TRACE_ALWAYS, "TXT (TPM Error) Status: %r; RetCode: %x.\n", \
Status, \
TPM_H2NL(tpmResult->RetCode) ));
return tpmResult->RetCode;
}
#if defined SINIT_ACM_SUPPORT && SINIT_ACM_SUPPORT == 1
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: EventUpdateSinitAcmToMemory
//
// Description: This routine copy SINIT ACM to SINIT meory for BIOS-Base SINI
// AC Module implementation.
//
// Input: IN EFI_EVENT Event
// IN VOID *Context
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID
EventUpdateSinitAcmToMemory (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_HANDLE *FvHandle;
UINTN Number, i, SinitacmSize = 0;
UINT32 Authentication, TxtMemBase;
VOID *pSinitacmPtr = NULL;
EFI_FIRMWARE_VOLUME_PROTOCOL *Fv;
EFI_GUID SinitAcmFfsGuid = \
{ 0x7fbfe0ea, 0x0e9d, 0x406b, 0xa2, 0x2, 0xca, 0x6a, 0x7d, 0x0e, 0x0f, 0x1e};
EFI_GUID gEfiFirmwareVolume2ProtocolGuid =
{ 0x220e73b6, 0x6bdb, 0x4413, 0x84, 0x5, 0xb9, 0x74, 0xb1, 0x8, 0x61, 0x9a };
pBS->CloseEvent (Event);
Status = pBS->LocateHandleBuffer (ByProtocol, \
&gEfiFirmwareVolume2ProtocolGuid, \
NULL, \
&Number, \
&FvHandle);
if (EFI_ERROR(Status)) return;
for (i = 0; i < Number; i++) {
Status = pBS->HandleProtocol (\
FvHandle[i], &gEfiFirmwareVolume2ProtocolGuid, &Fv);
if (EFI_ERROR(Status)) continue;
// Read SINIT AC module from Firmware Volume
SinitacmSize = 0;
pSinitacmPtr = NULL;
Status = Fv->ReadSection ( Fv,
&SinitAcmFfsGuid,
EFI_SECTION_RAW,
0,
&pSinitacmPtr,
&SinitacmSize,
&Authentication );
if (!EFI_ERROR(Status)) {
// SINIT Memory Base = TXT Public Space + 270h
TxtMemBase = *(UINT32*)0xfed30270;
// copy SINIT ACM to SINIT memory
pBS->CopyMem ((VOID*)TxtMemBase, pSinitacmPtr, SinitacmSize);
// BiosToOS Region Base = TXT Public Space + 300h
TxtMemBase = *(UINT32*)0xfed30300;
// Update SINIT ACM size to BiosToOS region
*(UINT32*)(TxtMemBase + 12) = (UINT32)SinitacmSize;
pBS->FreePool (pSinitacmPtr);
break;
}
}
pBS->FreePool (FvHandle);
}
#endif
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: LtDefineTpmNvramSpace
//
// Description: This routine for define the TPM Nvram space.
//
// Input: None.
//
// Output: TURE - Success.
// FALSE - Failed.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
BOOLEAN
LtDefineTpmNvramSpace (
VOID
)
{
EFI_STATUS Status;
EFI_TCG_PROTOCOL *tcg;
EFI_TPM_DEVICE_PROTOCOL *TpmDevice;
UINT32 CmdReadNvram[3] = { TPM_H2NL(0x50000002),
TPM_H2NL(0x00000000),
TPM_H2NL(0x40) };
TPM_DEF_NV_DATA CmdDefineNvram [] = { \
// TPM_NV_DATA_PUBLIC1 & TPM_NV_DATA_PUBLIC1.TPM_PCR_INFO_SHORT
TPM_H2NS(0x18), TPM_H2NL(0x50000003), TPM_H2NS(0x03), 0, 0, 0 , 0x1f, \
// TPM_NV_DATA_PUBLIC1.TPM_PCR_INFO_SHORT.TCPA_DIGEST
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
// TPM_NV_DATA_PUBLIC2.TPM_PCR_INFO_SHORT
TPM_H2NS(0x3), 0, 0, 0 , 0x18, \
// TPM_NV_DATA_PUBLIC2.TPM_PCR_INFO_SHORT.TCPA_DIGEST
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
// TPM_NV_DATA_PUBLIC2
TPM_H2NS(0x17), TPM_H2NL(0), 0, 0, 0, TPM_H2NL(0x40), \
// TCPA_DIGEST
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
// locate the TPM Device Protocol for sending TPM command.
Status = pBS->LocateProtocol ( &gEfiTpmDeviceProtocolGuid, \
NULL, \
&TpmDevice );
if (EFI_ERROR(Status)) {
TRACE ((TRACE_ALWAYS, \
"TXT (TPM Error) : failed to locate TPM Device protocol.\n"));
return FALSE;
}
// locate the TCG Protocol for sending TPM command.
Status = pBS->LocateProtocol ( &gEfiTcgProtocolGuid, NULL, &tcg );
if (EFI_ERROR (Status)) {
TRACE ((TRACE_ALWAYS, \
"TXT (TPM Error) : failed to locate TCG protocol.\n"));
return FALSE;
}
#if defined SINIT_ACM_SUPPORT && SINIT_ACM_SUPPORT == 1
{
// BIOS-Based SINIT AC module support.
EFI_EVENT SinitEvent;
Status = CreateReadyToBootEvent(TPL_CALLBACK, \
EventUpdateSinitAcmToMemory, \
NULL, \
&SinitEvent );
}
#endif
TpmDevice->Init(TpmDevice);
// Send TPM command to read TPM NVRAM space.
Status = LtSendTpmCommand ( tcg, \
TPM_ORD_NV_READVALUE, \
sizeof(CmdReadNvram), \
CmdReadNvram );
// if TPM NVRAM isn't defined, Send TPM command to define TPM NVRAM space.
if (Status != 0) {
CmdReadNvram[0] = TPM_H2NL(0x50000003);
Status = LtSendTpmCommand ( tcg, \
TPM_ORD_NV_READVALUE, \
sizeof(CmdReadNvram), \
CmdReadNvram );
if (Status != 0) {
Status = LtSendTpmCommand ( tcg, \
TPM_ORD_NV_DEFINESPACE, \
sizeof(TPM_DEF_NV_DATA), \
&CmdDefineNvram );
}
}
Status = TpmDevice->Close(TpmDevice);
if ( Status ) return FALSE;
return TRUE;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: TxtTpmNvRamDefine
//
// Description:
//
// Input: None
//
// Output: None
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID TxtTpmNvRamDefine()
{
UINTN VariableSize;
SETUP_DATA SetupData;
EFI_STATUS Status;
VariableSize = sizeof(SETUP_DATA);
Status = pRS->GetVariable ( L"Setup", \
&gSetupGuid, \
NULL, \
&VariableSize, \
&SetupData );
if (EFI_ERROR(Status))
return;
if (SetupData.TxtSupport != 0) {
if (SetupData.TpmSupport != 0) LtDefineTpmNvramSpace();
}
}
#else
VOID TxtTpmNvRamDefine()
{
return;
}
#endif
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: GetTxtInfo
//
// Description: Get Txt information
//
// Input: None
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS GetTxtInfo (
IN AMI_TXT_INFO_PROTOCOL *AMI_TXT_INFO_PROTOCOL,
OUT VOID **AmiTxtInfoData
){
*AmiTxtInfoData = (VOID*)(&gAmiTxtInfoData);
return 0;
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: InitAmiTxtInfo
//
// Description: Initialize Txt information
//
// Input: None
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID InitAmiTxtInfo()
{
EFI_STATUS Status;
VOID *HobList;
TXT_INFO_HOB *TxtInfoHob;
UINT32 RegEax, RegEbx, RegEcx, RegEdx;
UINT32 *TxtErrCode = (UINT32*)(TXT_PUBLIC_BASE + 0x0030);
EFI_GUID gTxtInfoHobGuid = TXT_INFO_HOB_GUID;
HobList = GetEfiConfigurationTable(pST,&gHobListGuid);
if (!HobList) return;
//Find RC Txt Info Hob.
TxtInfoHob = (TXT_INFO_HOB*)HobList;
while (!EFI_ERROR(Status = FindNextHobByType(EFI_HOB_TYPE_GUID_EXTENSION, &TxtInfoHob))) {
if (guidcmp(&TxtInfoHob->EfiHobGuidType.Name, &gTxtInfoHobGuid) == 0) break;
}
if (EFI_ERROR(Status)) return;
//Initialize AmiTxtInfoProtocol
gAmiTxtInfoProtocol.ProtocolVer = AMI_TXT_INFO_PROTOCOL_VERSION;
gAmiTxtInfoProtocol.GetTxtInfo = GetTxtInfo;
//Initialize AMI TXT info data from HOB created by Intel Txt RC
gAmiTxtInfoData.ChipsetIsTxtCapable = TxtInfoHob->Data.ChipsetIsTxtCapable;
gAmiTxtInfoData.TxtDprMemoryBase = TxtInfoHob->Data.TxtDprMemoryBase;
gAmiTxtInfoData.BiosAcmBase = TxtInfoHob->Data.BiosAcmBase;
gAmiTxtInfoData.McuUpdateDataAddr = TxtInfoHob->Data.McuUpdateDataAddr;
gAmiTxtInfoData.SinitAcmBase = TxtInfoHob->Data.SinitAcmBase;
//Initializing ChipsetIsProduction default value
gAmiTxtInfoData.ChipsetIsProduction = (*(UINT32 *) (TXT_PUBLIC_BASE + 0x200) & BIT31) ? TRUE : FALSE;
//Check ACM is production or not
gAmiTxtInfoData.BiosAcmIsProduction = (((ACM_HEADER*)(gAmiTxtInfoData.BiosAcmBase))->ModuleID & BIT31) ? FALSE : TRUE;
//CPUID funciton 1 ECX[6], Secure Mode Extensions check
CPULib_CpuID(1, &RegEax, &RegEbx, &RegEcx, &RegEdx);
gAmiTxtInfoData.CpuIsTxtCapable = (RegEcx & BIT6) ? TRUE : FALSE;
//TXT.CRASH register, TXT_PUBLIC_BASE + 0x30
gAmiTxtInfoData.TxtErrCode = *TxtErrCode;
Status = pBS->InstallProtocolInterface(
&TheImageHandle,
&gAmiTxtInfoProtocolGuid,
EFI_NATIVE_INTERFACE,
&gAmiTxtInfoProtocol
);
if (EFI_ERROR(Status))
TRACE ((TRACE_ALWAYS, "AmiTXTDxe : Install Protocol error, Status = %x\n", Status));
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
//
// Procedure: AmiTxtDxeEntry
//
// Description: DXE Entry Point for Intel TXT Driver.
//
// Input: EFI_HANDLE - ImageHandle
// EFI_SYSTEM_TABLE* - SystemTable
//
// Output: None.
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
AmiTxtDxeEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
#if TCG_SUPPORT || TCG2Support
EFI_STATUS Status;
UINTN DataSize;
SETUP_DATA SetupData;
UINT8 *TpmBaseAddr = (UINT8*)0xfed40000;
UINT32 Attributes = 0;
#endif
InitAmiLib(ImageHandle, SystemTable);
InitAmiTxtInfo();
#if TCG_SUPPORT || TCG2Support
DataSize = sizeof(SETUP_DATA);
Status = pRS->GetVariable(
L"Setup",
&gSetupGuid,
&Attributes,
&DataSize,
&SetupData
);
ASSERT_EFI_ERROR(Status);
if (EFI_ERROR(Status)) return EFI_SUCCESS;
//If TxtSupport on, but Tpm device is not present or TpmSupport off,
//then turn off TxtSupport.
if (SetupData.TxtSupport){
if ((*TpmBaseAddr == 0xff) || (!SetupData.TpmSupport)){
SetupData.TxtSupport = 0;
Status = pRS->SetVariable(
L"Setup",
&gSetupGuid,
Attributes,
sizeof(SETUP_DATA),
&SetupData
);
ASSERT_EFI_ERROR(Status);
}
}
#endif
TxtTpmNvRamDefine();
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 **
//** **
//*************************************************************************
//*************************************************************************
|