From 56908fd4be285b0ebb96855fe4dec1124879c5c2 Mon Sep 17 00:00:00 2001
From: Jiaxin Wu <jiaxin.wu@intel.com>
Date: Thu, 23 May 2024 14:26:37 +0800
Subject: [PATCH] StandaloneMmPkg/StandaloneMmPkg.dec: Add gEventMmDispatchGuid

MmIpl shall use gEventMmDispatchGuid to initialize
EFI_MM_COMMUNICATE_HEADER structure, and then communicate with MmCore
to dispatch all StandaloneMm drivers in SMM environment.

Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Co-authored-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Co-Authored-by: Ray Ni <ray.ni@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Star Zeng <star.zeng@intel.com>
Co-Authored-by: Wei6 Xu <wei6.xu@intel.com>
Cc: Dun Tan <dun.tan@intel.com>
Cc: Yuanhao Xie <yuanhao.xie@intel.com>
---
 StandaloneMmPkg/StandaloneMmPkg.dec | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/StandaloneMmPkg/StandaloneMmPkg.dec b/StandaloneMmPkg/StandaloneMmPkg.dec
index a23a0f8f2f..25e660b247 100644
--- a/StandaloneMmPkg/StandaloneMmPkg.dec
+++ b/StandaloneMmPkg/StandaloneMmPkg.dec
@@ -3,6 +3,7 @@
 # required by Standalone MM platform.
 #
 # Copyright (c) 2016-2021, Arm Ltd. All rights reserved.<BR>
+# Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
 #
 # SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -51,6 +52,8 @@
   gEfiStandaloneMmNonSecureBufferGuid      = { 0xf00497e3, 0xbfa2, 0x41a1, { 0x9d, 0x29, 0x54, 0xc2, 0xe9, 0x37, 0x21, 0xc5 }}
   gEfiMmCpuDriverEpDescriptorGuid          = { 0x6ecbd5a1, 0xc0f8, 0x4702, { 0x83, 0x01, 0x4f, 0xc2, 0xc5, 0x47, 0x0a, 0x51 }}
 
+  gEventMmDispatchGuid                     = { 0x7e6efffa, 0x69b4, 0x4c1b, { 0xa4, 0xc7, 0xaf, 0xf9, 0xc9, 0x24, 0x4f, 0xee }}
+
 [PcdsFixedAtBuild, PcdsPatchableInModule]
   ## Maximum permitted encapsulation levels of sections in a firmware volume,
   #  in the MM phase. Minimum value is 1. Sections nested more deeply are rejected.