Hi Star,
Could you please review this patch, I have made updates to the comments for:
Do we really want to mention OVMF specifically in UefiCpuPkg.dec PCD
definition ?
Those comments may be better to be in OVMF dsc PCD override.
Thanks for the feedback
Yuanhao
-----Original Message-----
From: Xie, Yuanhao <yuanhao....@intel.com>
Sent: Friday, July 28, 2023 1:18 PM
To: devel@edk2.groups.io
Cc: Dong, Eric <eric.d...@intel.com>; Ni, Ray <ray...@intel.com>; Kumar, Rahul
R <rahul.r.ku...@intel.com>; Gerd Hoffmann <kra...@redhat.com>; Ard Biesheuvel
<ardb+tianoc...@kernel.org>; Yao, Jiewen <jiewen....@intel.com>; Justen, Jordan
L <jordan.l.jus...@intel.com>; Xie, Yuanhao <yuanhao....@intel.com>
Subject: [Patch V4 3/4] OvmfPkg: Disable PcdFirstTimeWakeUpAPsBySipi.
Disable PcdFirstTimeWakeUpAPsBySipi for OVMF to let BSP wake up APs by
INIT-SIPI-SIPI.
Cc: Eric Dong <eric.d...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Rahul Kumar <rahul1.ku...@intel.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Jordan Justen <jordan.l.jus...@intel.com>
Signed-off-by: Yuanhao Xie <yuanhao....@intel.com>
Reviewed-by: Ray Ni <ray...@intel.com>
---
OvmfPkg/OvmfPkgIa32.dsc | 9 ++++++++-
OvmfPkg/OvmfPkgIa32X64.dsc | 7 +++++++
OvmfPkg/OvmfPkgX64.dsc | 7 +++++++
3 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc index
ed36935770..0193ea8af8 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 #
+ indicate whether to broadcast INIT-SIPI-SIPI or SIPI.
+ #
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
################################################################################
#
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc index
919315e4cb..05ded289ad 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -566,6 +566,13 @@
!if $(SOURCE_DEBUG_ENABLE) == TRUE
gEfiSourceLevelDebugPkgTokenSpaceGuid.PcdDebugLoadImageMethod|0x2
!endif
+ #
+ # 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 #
+ indicate whether to broadcast INIT-SIPI-SIPI or SIPI.
+ #
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
[PcdsFixedAtBuild.IA32]
#
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc index
823de0d0f9..d588e09da5 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -615,6 +615,13 @@
# 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 #
+ indicate whether to broadcast INIT-SIPI-SIPI or SIPI.
+ #
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
################################################################################
#
--
2.36.1.windows.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#107320): https://edk2.groups.io/g/devel/message/107320
Mute This Topic: https://groups.io/mt/100405496/21656
Group Owner: devel+ow...@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
