UefiCpuPkg: Move AsmRelocateApLoopStart from Mpfuncs.nasm to AmdSev.nasm

[mirror_edk2.git] / StandaloneMmPkg / Library / VariableMmDependency / VariableMmDependency.c

/** @file\r
  Runtime DXE part corresponding to StandaloneMM variable module.\r
\r
This module installs variable arch protocol and variable write arch protocol\r
to StandaloneMM runtime variable service.\r
\r
Copyright (c) 2019 - 2021, Arm Ltd. All rights reserved.\r
\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <Library/DebugLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
\r
/**\r
  The constructor function installs variable arch protocol and variable\r
  write arch protocol to StandaloneMM runtime variable service\r
\r
  @param  ImageHandle   The firmware allocated handle for the EFI image.\r
  @param  SystemTable   A pointer to the Management mode System Table.\r
\r
  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
VariableMmDependencyLibConstructor (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS  Status;\r
  EFI_HANDLE  Handle;\r
\r
  Handle = NULL;\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &Handle,\r
                  &gEfiSmmVariableProtocolGuid,\r
                  NULL,\r
                  &gSmmVariableWriteGuid,\r
                  NULL,\r
                  NULL\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
  return EFI_SUCCESS;\r
}\r