SecurityPkg/Tcg/Tcg2Smm/Tcg2MmDependencyDxe.c

   1 /** @file
   2   Runtime DXE part corresponding to StandaloneMM Tcg2 module.
   3
   4 This module installs gTcg2MmSwSmiRegisteredGuid to notify readiness of
   5 StandaloneMM Tcg2 module.
   6
   7 Copyright (c) 2019 - 2021, Arm Ltd. All rights reserved.
   8 Copyright (c) Microsoft Corporation.
   9
  10 SPDX-License-Identifier: BSD-2-Clause-Patent
  11
  12 **/
  13
  14 #include <PiDxe.h>
  15
  16 #include <Library/DebugLib.h>
  17 #include <Library/UefiBootServicesTableLib.h>
  18
  19 /**
  20   The constructor function installs gTcg2MmSwSmiRegisteredGuid to notify
  21   readiness of StandaloneMM Tcg2 module.
  22
  23   @param  ImageHandle   The firmware allocated handle for the EFI image.
  24   @param  SystemTable   A pointer to the Management mode System Table.
  25
  26   @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
  27
  28 **/
  29 EFI_STATUS
  30 EFIAPI
  31 Tcg2MmDependencyDxeEntryPoint (
  32   IN EFI_HANDLE        ImageHandle,
  33   IN EFI_SYSTEM_TABLE  *SystemTable
  34   )
  35 {
  36   EFI_STATUS  Status;
  37   EFI_HANDLE  Handle;
  38
  39   Handle = NULL;
  40   Status = gBS->InstallProtocolInterface (
  41                   &Handle,
  42                   &gTcg2MmSwSmiRegisteredGuid,
  43                   EFI_NATIVE_INTERFACE,
  44                   NULL
  45                   );
  46   ASSERT_EFI_ERROR (Status);
  47   return EFI_SUCCESS;
  48 }