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+//*************************************************************************
+//*************************************************************************
+//** **
+//** (C)Copyright 1985-2010, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//*************************************************************************
+//*************************************************************************
+//**********************************************************************
+//
+// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/ME/MeWrapper/TdtWrapper/TDTWrapper.c 12 6/18/14 3:04a Larryliu $
+//
+// $Revision: 12 $
+//
+// $Date: 6/18/14 3:04a $
+//
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/ME/MeWrapper/TdtWrapper/TDTWrapper.c $
+//
+// 12 6/18/14 3:04a Larryliu
+// [TAG] EIP173999
+// [Category] Improvement
+// [Description] [HWR]Remove useless comments from Intel ME
+// component.(except RC)
+// [Files] TDTWrapper.c
+//
+// 10 5/14/14 10:04p Tristinchou
+// [TAG] EIP167030
+// [Category] Improvement
+// [Description] Remove the variable runtime attribute and keep original
+// attributes.
+//
+// 9 12/17/13 9:50p Tristinchou
+// [TAG] EIP146961
+// [Category] Bug Fix
+// [Severity] Normal
+// [Symptom] After Initiated Resume, "Enter Intel AT Suspend Mode"
+// option is still enable in Bios setup menu
+// [RootCause] The conditional expression is never true to clean steup
+// item.
+// [Solution] Use MBP data to check AT status.
+//
+// 8 6/21/13 3:08a Klzhan
+// [TAG] EIP127189
+// [Category] Spec Update
+// [Severity] Important
+// [Description] Update ME RC 1.60
+//
+// 7 6/02/13 9:13a Klzhan
+// [TAG] EIPNone
+// [Category] Improvement
+// [Description] Report PBA not support when AT is disabled.
+//
+// 6 4/02/13 1:51a Klzhan
+// [TAG] EIPNone
+// [Category] Bug Fix
+// [Severity] Critical
+// [Symptom] Setup Variable crash
+// [RootCause] Variable not been initialized.
+//
+// 5 9/27/12 4:56a Klzhan
+// [TAG] EIP102254
+// [Category] Spec Update
+// [Severity] Important
+// [Description] Update ME RC 0.7
+// [Files] TDTWrapper.dxs
+// TDTWrapper.c
+// TDTWrapper.mak
+// TDTWrapper.sdl
+// TDTSetup.sd
+// TDTSetup.uni
+// TdtCallback.h
+// TDTWrapper.cif
+//
+// 4 8/30/12 2:57a Klzhan
+//
+// 3 4/24/12 3:33a Klzhan
+//
+// 2 4/24/12 12:33a Klzhan
+// Update modulepart to latest
+//
+// 1 2/08/12 1:07a Klzhan
+// Initial Check in
+//
+// 3 9/20/11 9:40a Klzhan
+// Check TdtConfig by Wrapper not SetupData.
+//
+// 2 4/21/11 2:58a Klzhan
+//
+// 1 2/25/11 1:40a Klzhan
+// Initial Check-in
+//
+// 1 12/03/10 5:09a Klzhan
+// Initial Check-in.
+//
+//
+//**********************************************************************
+
+//<AMI_FHDR_START>
+//----------------------------------------------------------------------------
+//
+// Name: TdtSetup.c
+//
+// Description: Setup Hooks for Tdt.
+//
+//----------------------------------------------------------------------------
+//<AMI_FHDR_END>
+/*++
+
+Copyright (c) 2004-2006 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:
+
+ TDTPlatformPolicy.c
+
+Abstract:
+
+ TDTPlatformPolicy to check and set TDT Platform Policy.
+
+--*/
+/*++
+ This file contains an 'Intel Peripheral Driver' and is
+ licensed for Intel CPUs and chipsets under the terms of your
+ license agreement with Intel or your vendor. This file may
+ be modified by the user, subject to additional terms of the
+ license agreement
+--*/
+
+
+//This needs to be merged with AMT Platform Policy.
+
+//
+// Statements that include other files
+//
+//#include "Efi.h"
+
+
+#include <EFI.h>
+#include <AmiDxeLib.h>
+#include <Protocol\SMBios.h>
+#include <Include\Protocol\SmbiosGetFlashDataProtocol.h>
+#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0))
+#include <Include\Protocol\LegacyRegion.h>
+#endif
+#include "Setup.h"
+#include "ReferenceCode\ME\Protocol\AtPlatformPolicy\AtPlatformPolicy.h"
+#include "MkhiMsgs.h"
+#include "Protocol\MeBiosPayloadData\MeBiosPayloadData.h"
+#include "TdtCallback.h"
+#define BDS_ALL_DRIVERS_CONNECTED_PROTOCOL_GUID \
+ { 0xdbc9fd21, 0xfad8, 0x45b0, 0x9e, 0x78, 0x27, 0x15, 0x88, 0x67, 0xcc, 0x93 }
+
+#define ME_ALERT_AT_HANDLER_GUID {0xb441df87, 0x8d94, 0x4811, 0x85, 0xf7, 0xf, 0x9a, 0x7b, 0xf8, 0x9d, 0x2a}
+
+#define SMB131_IDENTIFIER_OFFSET 0x38
+#define SMB131_ME_CAPS_OFFSET 0x18
+#define SMB131_AT_ENROLL_OFFSET 0x24
+#define SMB131_BIOS_SEC_CAPS_OFFSET 0x34
+
+EFI_GUID gSetupGuid = SETUP_GUID;
+EFI_GUID gDxePlatformTdtPolicyGuid = DXE_PLATFORM_AT_POLICY_GUID;
+EFI_GUID gEfiSmbiosProtocolGuid = EFI_SMBIOS_PROTOCOL_GUID;
+#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0))
+EFI_GUID gEfiLegacyRegionProtocol = EFI_LEGACY_REGION_PROTOCOL_GUID;
+#endif
+EFI_GUID gBdsAllDriversConnectedProtocolGuid = \
+ BDS_ALL_DRIVERS_CONNECTED_PROTOCOL_GUID;
+EFI_GUID gMEAlertATHandlerGuid = ME_ALERT_AT_HANDLER_GUID;
+EFI_EVENT mReady2BootEvent;
+EFI_RUNTIME_SERVICES *gRT;
+EFI_BOOT_SERVICES *gBS;
+
+DXE_AT_POLICY_PROTOCOL *TDTPlatformPolicyInstance;
+
+#define EFI_TPL_DRIVER 6
+#define EFI_TPL_APPLICATION 4
+#define EFI_TPL_CALLBACK 8
+#define EFI_TPL_NOTIFY 16
+#define EFI_TPL_HIGH_LEVEL 31
+
+VOID
+EFIAPI
+TDTEventModSmbiosType131 (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+);
+
+DXE_MBP_DATA_PROTOCOL *mBIOSPayLoad;
+VOID NullFunction(
+ EFI_EVENT Event,
+ VOID *ParentImageHandle
+)
+{
+ return;
+}
+
+//
+// Function implementations
+//
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+//
+// Procedure: TxtExitSetupEvent
+//
+// Description: This routine for reset the TPM Establishment flag.
+//
+// Input: EFI_EVENT - Efi event.
+// VOID* - Image handle.
+//
+// Output: None.
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+EFI_STATUS
+TdtAllDriverConnectEvent (
+ IN EFI_EVENT Event,
+ IN VOID *ParentImageHandle
+)
+{
+ EFI_STATUS Status;
+ EFI_EVENT MEAlertAT;
+ UINT32 SetupVarAttr;
+ EFI_GUID TdtSetupDataGuid = TDT_VOLATILE_SETUP_DATA_GUID;
+ TDT_VOLATILE_SETUP_DATA TdtSetupData;
+ SETUP_DATA SetupData;
+ UINTN VariableSize = sizeof(SETUP_DATA);
+
+ // Get current Setup Data.
+ Status = gRT->GetVariable( L"Setup",
+ &gSetupGuid,
+ &SetupVarAttr,
+ &VariableSize,
+ &SetupData );
+ if( !EFI_ERROR(Status) )
+ {
+ if( (mBIOSPayLoad->MeBiosPayload.AtState.State == AT_STATE_INACTIVE) &&
+ (SetupData.TdtEnterSuspendState != 0) )
+ {
+ SetupData.TdtEnterSuspendState = 0;
+ Status = gRT->SetVariable ( L"Setup",
+ &gSetupGuid,
+ SetupVarAttr,
+ VariableSize,
+ &SetupData );
+ }
+ }
+
+ TdtSetupData.TdtEnroll = 0;
+ if (mBIOSPayLoad->MeBiosPayload.AtState.State != 0) TdtSetupData.TdtEnroll = 1;
+ Status = gRT->SetVariable ( TDT_VOLATILE_SETUP_DATA_C_NAME, \
+ &TdtSetupDataGuid, \
+ EFI_VARIABLE_NON_VOLATILE | \
+ EFI_VARIABLE_BOOTSERVICE_ACCESS, \
+ sizeof(TDT_VOLATILE_SETUP_DATA), \
+ &TdtSetupData );
+ // Signal Event To support New AT AM module.
+ Status = gBS->CreateEventEx(
+ EFI_EVENT_NOTIFY_SIGNAL,
+ EFI_TPL_NOTIFY,
+ NullFunction,
+ NULL,
+ &gMEAlertATHandlerGuid,
+ &MEAlertAT);
+ gBS->SignalEvent(MEAlertAT);
+ gBS->CloseEvent(MEAlertAT);
+ return EFI_SUCCESS;
+}
+VOID LocateMBP(IN EFI_EVENT Event, IN VOID *Context)
+{
+ pBS->LocateProtocol (&gMeBiosPayloadDataProtocolGuid, NULL, &mBIOSPayLoad);
+}
+EFI_STATUS
+EFIAPI
+TdtWrapperEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+)
+/*++
+
+Routine Description:
+
+ Entry point for the TDTPlatformPolicy Driver.
+
+Arguments:
+
+ ImageHandle Image handle of this driver.
+ SystemTable Global system service table.
+
+Returns:
+
+ EFI_SUCCESS Initialization complete.
+ EFI_UNSUPPORTED The chipset is unsupported by this driver.
+ EFI_OUT_OF_RESOURCES Do not have enough resources to initialize the driver.
+ EFI_DEVICE_ERROR Device error, driver exits abnormally.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_GUID gSetupGuid = SETUP_GUID;
+ UINT32 SetupVarAttr;
+ UINTN VariableSize = 0;
+ SETUP_DATA SetupDataBuffer;
+ SETUP_DATA* SetupData = &SetupDataBuffer;
+ EFI_EVENT AllDriverConnectEvent;
+ VOID *Registration;
+ EFI_GUID TdtSetupDataGuid = TDT_VOLATILE_SETUP_DATA_GUID;
+ TDT_VOLATILE_SETUP_DATA TdtSetupData;
+ //
+ // Initialize the EFI Driver Library
+ //
+
+ VariableSize = sizeof (SETUP_DATA);
+ InitAmiLib(ImageHandle, SystemTable);
+ gBS = SystemTable->BootServices;
+ gRT = SystemTable->RuntimeServices;
+
+ Status = gBS->LocateProtocol(&gMeBiosPayloadDataProtocolGuid, NULL, &mBIOSPayLoad);
+ if (EFI_ERROR (Status))
+ {
+ EFI_EVENT AmiCpuInfoEvt;
+ VOID *CpuNotifyReg;
+
+ Status = RegisterProtocolCallback(
+ &gMeBiosPayloadDataProtocolGuid,
+ LocateMBP,
+ NULL,
+ &AmiCpuInfoEvt,
+ &CpuNotifyReg
+ );
+ }
+ //
+ // Allocate Ide private data structure
+ //
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (DXE_AT_POLICY_PROTOCOL),
+ (VOID**)&TDTPlatformPolicyInstance
+ );
+ if (EFI_ERROR(Status))
+ return EFI_OUT_OF_RESOURCES;
+
+ //
+ // Get TDT BIOS Setup
+ //
+ Status = gRT->GetVariable (
+ L"Setup",
+ &gSetupGuid,
+ &SetupVarAttr,
+ &VariableSize,
+ &SetupDataBuffer
+ );
+ VariableSize = sizeof(TDT_VOLATILE_SETUP_DATA);
+ Status = gRT->GetVariable ( TDT_VOLATILE_SETUP_DATA_C_NAME, \
+ &TdtSetupDataGuid, \
+ NULL, \
+ &VariableSize, \
+ &TdtSetupData );
+ // If Tdt is in Enroll state, Set Tdt config to Enable.
+ if((!EFI_ERROR(Status)) && (TdtSetupData.TdtEnroll == 1))
+ {
+ SetupData->TdtConfig = 1;
+ Status = gRT->SetVariable ( L"Setup", \
+ &gSetupGuid, \
+ SetupVarAttr, \
+ sizeof(SETUP_DATA), \
+ &SetupDataBuffer );
+ }
+ if (EFI_ERROR(Status)){
+ TDTPlatformPolicyInstance->At.AtAmBypass = 1;
+ TDTPlatformPolicyInstance->At.AtEnterSuspendState = 0;
+ TDTPlatformPolicyInstance->At.AtSupported = 1;
+ TDTPlatformPolicyInstance->At.AtPba = 1;
+ } else {
+ TDTPlatformPolicyInstance->At.AtAmBypass = SetupData->TdtConfig == 1 ? 0 : 1;
+ TDTPlatformPolicyInstance->At.AtEnterSuspendState = SetupData->TdtEnterSuspendState;
+ TDTPlatformPolicyInstance->At.AtSupported = 1;
+ TDTPlatformPolicyInstance->At.AtPba = 1;
+ }
+ TDTPlatformPolicyInstance->Revision = DXE_PLATFORM_AT_POLICY_PROTOCOL_REVISION_2;
+
+ //
+ // Install the TDT Platform Policy PROTOCOL interface
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &ImageHandle,
+ &gDxePlatformTdtPolicyGuid, TDTPlatformPolicyInstance,
+ NULL
+ );
+ // If TDT support is disabled in BIOS SETUP, clear the AT support flag of
+ // SMBIOS TYPE131 to avoid that system can be enrolled.
+ Status = RegisterProtocolCallback ( &gBdsAllDriversConnectedProtocolGuid, \
+ TdtAllDriverConnectEvent, \
+ NULL, \
+ &AllDriverConnectEvent, \
+ &Registration );
+
+ // If TDT support is disabled in BIOS SETUP, clear the AT support flag of
+ // SMBIOS TYPE131 to avoid that system can be enrolled.
+ Status = CreateReadyToBootEvent ( TPL_CALLBACK - 1, \
+ TDTEventModSmbiosType131, \
+ NULL, \
+ &mReady2BootEvent );
+
+ return Status;
+}
+
+//<AMI_PHDR_START>
+//----------------------------------------------------------------------------
+//
+// Procedure: TDTEventModSmbiosType131
+//
+// Description: This routine clear the AT support flag of Type 131.
+//
+// Input:
+// IN EFI_EVENT Event - signalled event
+// IN VOID *Context - event context
+//
+// Output: None
+//
+//----------------------------------------------------------------------------
+//<AMI_PHDR_END>
+VOID
+EFIAPI
+TDTEventModSmbiosType131 (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+)
+{
+ EFI_STATUS Status;
+ EFI_SMBIOS_PROTOCOL *mSmbiosProtocol;
+ SMBIOS_TABLE_ENTRY_POINT *SmbTblEntry;
+#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0))
+ EFI_LEGACY_REGION_PROTOCOL* iRegion;
+#endif
+ UINT16 i, MeCaps, AtEnroll, BiosSecurityCaps;
+ UINT8* pStrucPtr;
+ UINTN VariableSize = sizeof(TDT_VOLATILE_SETUP_DATA);
+ EFI_GUID TdtSetupDataGuid = TDT_VOLATILE_SETUP_DATA_GUID;
+ TDT_VOLATILE_SETUP_DATA TdtSetupData;
+
+ Status = gBS->LocateProtocol ( &gEfiSmbiosProtocolGuid, \
+ NULL, \
+ &mSmbiosProtocol );
+ if (EFI_ERROR(Status)) return ;
+
+ Status = gRT->GetVariable ( TDT_VOLATILE_SETUP_DATA_C_NAME, \
+ &TdtSetupDataGuid, \
+ NULL, \
+ &VariableSize, \
+ &TdtSetupData );
+ if (EFI_ERROR(Status)) return ;
+
+ // Get SMBIOS Table Entry Point.
+ SmbTblEntry = mSmbiosProtocol->SmbiosGetTableEntryPoint ();
+
+ // Search SMBIOS Type 131.
+ for ( pStrucPtr = (UINT8*)SmbTblEntry->TableAddress, i = 0; \
+ i < SmbTblEntry->TableLength; i++ ) {
+ // search SMBIOS Type 131 structure identifier - vPro
+ if ( *(UINT32*)(pStrucPtr + i) != 0x6f725076 ) continue;
+ // Pointer to ME Capabilities field.
+ MeCaps = i - (SMB131_IDENTIFIER_OFFSET - SMB131_ME_CAPS_OFFSET);
+ AtEnroll = i - (SMB131_IDENTIFIER_OFFSET - SMB131_AT_ENROLL_OFFSET);
+ BiosSecurityCaps = i - (SMB131_IDENTIFIER_OFFSET - SMB131_BIOS_SEC_CAPS_OFFSET);
+ if (*(UINT32*)(pStrucPtr + MeCaps) & BIT13) {
+#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0))
+ Status = pBS->LocateProtocol ( &gEfiLegacyRegionProtocol, \
+ NULL, \
+ &iRegion );
+ if (EFI_ERROR(Status)) return ;
+ // Unlock Shadow ram.
+ iRegion->UnLock ( iRegion, 0xE0000, 0x20000, NULL );
+#endif
+ // AT-P is disabled in SETUP, clear the AT-p support flag to avoid
+ // that system can be enrolled.
+ if (TDTPlatformPolicyInstance->At.AtAmBypass == 1)
+ {
+ *(UINT32*)(pStrucPtr + MeCaps) &= ~BIT13;
+ *(UINT32*)(pStrucPtr + BiosSecurityCaps) &= ~BIT6;
+ }
+ // Set AT is configured if AT is enrolled.
+ if (TdtSetupData.TdtEnroll != 0)
+ *(UINT8*)(pStrucPtr + AtEnroll) |= BIT5;
+ // Lock Shadow ram.
+#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0))
+ iRegion->Lock ( iRegion, 0xE0000, 0x20000, NULL );
+#endif
+ }
+ break;
+ }
+ return ;
+}
+
+
+//*************************************************************************
+//*************************************************************************
+//** **
+//** (C)Copyright 1985-2010, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//*************************************************************************
+//*************************************************************************
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