MdePkg: introduce standalone MM entry point library class

Add the library interface for the standalone MM driver entry point.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

MdePkg/Include/Library/StandaloneMmDriverEntryPoint.h

@@ -0,0 +1,131 @@
+/** @file
+  Module entry point library for Standalone MM Drivers.
+
+Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.<BR>
+Copyright (c) 2018, Linaro, Limited. All rights reserved.<BR>
+
+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 __MODULE_ENTRY_POINT_H__
+#define __MODULE_ENTRY_POINT_H__
+
+///
+/// Declare the PI Specification Revision that this driver requires to execute
+/// correctly.
+///
+extern CONST UINT32                   _gMmRevision;
+
+/**
+  The entry point of PE/COFF Image for a Standalone MM Driver.
+
+  This function is the entry point for a Standalone MM Driver.
+  This function must call ProcessLibraryConstructorList() and
+  ProcessModuleEntryPointList().
+  If the return status from ProcessModuleEntryPointList()
+  is an error status, then ProcessLibraryDestructorList() must be called.
+  The return value from ProcessModuleEntryPointList() is returned.
+  If _gMmRevision is not zero and MmSystemTable->Hdr.Revision is
+  less than _gMmRevision, then return EFI_INCOMPATIBLE_VERSION.
+
+  @param  ImageHandle  The image handle of the Standalone MM Driver.
+  @param  SystemTable  A pointer to the EFI System Table.
+
+  @retval  EFI_SUCCESS               The Standalone MM Driver exited normally.
+  @retval  EFI_INCOMPATIBLE_VERSION  _gMmRevision is greater than
+                                     MmSystemTable->Hdr.Revision.
+  @retval  Other                     Return value from
+                                     ProcessModuleEntryPointList().
+
+**/
+EFI_STATUS
+EFIAPI
+_ModuleEntryPoint (
+  IN EFI_HANDLE             ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE    *MmSystemTable
+  );
+
+
+/**
+  Auto generated function that calls the library constructors for all of the
+  module's dependent libraries.
+
+  This function must be called by _ModuleEntryPoint().
+  This function calls the set of library constructors for the set of library
+  instances that a module depends on.  This includes library instances that a
+  module depends on directly and library instances that a module depends on
+  indirectly through other libraries. This function is auto generated by build
+  tools and those build tools are responsible for collecting the set of library
+  instances, determine which ones have constructors, and calling the library
+  constructors in the proper order based upon each of the library instances own
+  dependencies.
+
+  @param  ImageHandle  The image handle of the Standalone MM Driver.
+  @param  SystemTable  A pointer to the MM System Table.
+
+**/
+VOID
+EFIAPI
+ProcessLibraryConstructorList (
+  IN EFI_HANDLE             ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE    *MmSystemTable
+  );
+
+
+/**
+  Auto generated function that calls the library descructors for all of the
+  module's dependent libraries.
+
+  This function may be called by _ModuleEntryPoint().
+  This function calls the set of library destructors for the set of library
+  instances that a module depends on. This includes library instances that a
+  module depends on directly and library instances that a module depends on
+  indirectly through other libraries.
+  This function is auto generated by build tools and those build tools are
+  responsible for collecting the set of library instances, determine which ones
+  have destructors, and calling the library destructors in the proper order
+  based upon each of the library instances own dependencies.
+
+  @param  ImageHandle  The image handle of the Standalone MM Driver.
+  @param  SystemTable  A pointer to the MM System Table.
+
+**/
+VOID
+EFIAPI
+ProcessLibraryDestructorList (
+  IN EFI_HANDLE             ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE    *MmSystemTable
+  );
+
+
+/**
+  Auto generated function that calls a set of module entry points.
+
+  This function must be called by _ModuleEntryPoint().
+  This function calls the set of module entry points.
+  This function is auto generated by build tools and those build tools are
+  responsible for collecting the module entry points and calling them in a
+  specified order.
+
+  @param  ImageHandle  The image handle of the Standalone MM Driver.
+  @param  SystemTable  A pointer to the EFI System Table.
+
+  @retval  EFI_SUCCESS   The Standalone MM Driver executed normally.
+  @retval  !EFI_SUCCESS  The Standalone MM Driver failed to execute normally.
+**/
+EFI_STATUS
+EFIAPI
+ProcessModuleEntryPointList (
+  IN EFI_HANDLE             ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE    *MmSystemTable
+  );
+
+#endif

MdePkg/MdePkg.dec

@@ -247,6 +247,9 @@
   #                Only available to MM_STANDALONE, SMM/DXE Combined and SMM module types.
   MmServicesTableLib|Include/Library/MmServicesTableLib.h
 
+  ##  @libraryclass  Module entry point library for standalone MM drivers.
+  StandaloneMmDriverEntryPoint|Include/Library/StandaloneMmDriverEntryPoint.h
+
 [LibraryClasses.IA32, LibraryClasses.X64]
   ##  @libraryclass  Abstracts both S/W SMI generation and detection.
   ##