Add 4 Framework/PI SMM thunk drivers. Combined use of these drivers can support usage model of PI SMM infrastructure + Framework Chipset SMM code + Framework platform SMM code in ECP platforms.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9657 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Compatibility/SmmBaseHelper/SmmBaseHelper.h

@@ -0,0 +1,57 @@
+/** @file
+  Include file for SMM Base Helper SMM driver.
+  
+  Copyright (c) 2009, Intel Corporation
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef  _SMM_BASE_HELPER_H_
+#define  _SMM_BASE_HELPER_H_
+
+#include <PiSmm.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/SmmServicesTableLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/PeCoffLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/CacheMaintenanceLib.h>
+#include <Guid/SmmBaseThunkCommunication.h>
+#include <Protocol/SmmBaseHelperReady.h>
+#include <Protocol/SmmCpu.h>
+#include <Protocol/LoadedImage.h>
+#include <Common/CpuSaveState.h>
+
+///
+/// Structure for tracking paired information of registered Framework SMI handler
+/// and correpsonding dispatch handle for SMI handler thunk.
+///
+typedef struct {
+  LIST_ENTRY                    Link;
+  EFI_HANDLE                    DispatchHandle;
+  EFI_HANDLE                    SmmImageHandle;
+  EFI_SMM_CALLBACK_ENTRY_POINT  CallbackAddress;
+} CALLBACK_INFO;
+
+typedef struct {
+  ///
+  /// PI SMM CPU Save State register index
+  ///
+  EFI_SMM_SAVE_STATE_REGISTER   Register;
+  ///
+  /// Offset in Framework SMST
+  ///
+  UINTN                         Offset;
+} CPU_SAVE_STATE_CONVERSION;
+
+#define CPU_SAVE_STATE_GET_OFFSET(Field)  (UINTN)(&(((EFI_SMM_CPU_SAVE_STATE *) 0)->Ia32SaveState.Field))
+
+#endif