From 1d76560146b169f0f6c39a3de9ee1fdc4c41dd0b Mon Sep 17 00:00:00 2001
From: YuanhaoXie <yuanhao.xie@intel.com>
Date: Tue, 18 Jul 2023 18:06:04 +0800
Subject: OvmfPkg: Disable PcdFirstTimeWakeUpAPsBySipi.

Disable PcdFirstTimeWakeUpAPsBySipi for OVMF to let BSP wake up APs by
INIT-SIPI-SIPI.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Yuanhao Xie <yuanhao.xie@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
---
 OvmfPkg/OvmfPkgIa32.dsc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'OvmfPkg/OvmfPkgIa32.dsc')

diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index ed36935..80d8e37 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -1,7 +1,7 @@
 ## @file
 #  EFI/Framework Open Virtual Machine Firmware (OVMF) platform
 #
-#  Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2006 - 2023, Intel Corporation. All rights reserved.<BR>
 #  (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 #  Copyright (c) Microsoft Corporation.
 #
@@ -585,6 +585,13 @@
 
   # Point to the MdeModulePkg/Application/UiApp/UiApp.inf
   gEfiMdeModulePkgTokenSpaceGuid.PcdBootManagerMenuFile|{ 0x21, 0xaa, 0x2c, 0x46, 0x14, 0x76, 0x03, 0x45, 0x83, 0x6e, 0x8a, 0xb6, 0xf4, 0x66, 0x23, 0x31 }
+  #
+  # INIT is now triggered before BIOS by ucode/hardware. In the OVMF
+  # environment, QEMU lacks a simulation for the INIT process.
+  # To address this, PcdFirstTimeWakeUpAPsBySipi set to FALSE to
+  # broadcast INIT-SIPI-SIPI for the first time.
+  #
+  gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
 
 ################################################################################
 #
-- 
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