Disable PcdFirstTimeWakeUpAPsBySipi for IntelTdx, Microvm, and Xen to
preserve the original execution of 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>
---
OvmfPkg/IntelTdx/IntelTdxX64.dsc | 8 ++++++++
OvmfPkg/Microvm/MicrovmX64.dsc | 8 ++++++++
OvmfPkg/OvmfXen.dsc | 8 ++++++++
3 files changed, 24 insertions(+)
diff --git a/OvmfPkg/IntelTdx/IntelTdxX64.dsc b/OvmfPkg/IntelTdx/IntelTdxX64.dsc
index 193657ff2d..80b0558c3f 100644
--- a/OvmfPkg/IntelTdx/IntelTdxX64.dsc
+++ b/OvmfPkg/IntelTdx/IntelTdxX64.dsc
@@ -463,6 +463,14 @@
# 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 }
+ #
+ # PcdFirstTimeWakeUpAPsBySipi determines whether to employ
+ # SIPI instead of the INIT-SIPI-SIPI sequence during APs
+ # initialization. Deactivate this parameter to preserve
+ # the original execution of INIT-SIPI-SIPI.
+ #
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
+
################################################################################
#
# Pcd Dynamic Section - list of all EDK II PCD Entries defined by this Platform
diff --git a/OvmfPkg/Microvm/MicrovmX64.dsc b/OvmfPkg/Microvm/MicrovmX64.dsc
index 2f75856393..d2ef1e00a5 100644
--- a/OvmfPkg/Microvm/MicrovmX64.dsc
+++ b/OvmfPkg/Microvm/MicrovmX64.dsc
@@ -566,6 +566,14 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialPciDeviceInfo|{0xFF}
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase|0x3f8
+ #
+ # PcdFirstTimeWakeUpAPsBySipi determines whether to employ
+ # SIPI instead of the INIT-SIPI-SIPI sequence during APs
+ # initialization. Deactivate this parameter to preserve
+ # the original execution of INIT-SIPI-SIPI.
+ #
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
+
################################################################################
#
# Pcd Dynamic Section - list of all EDK II PCD Entries defined by this Platform
diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index 210578c1d7..dcb99d1f0b 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -458,6 +458,14 @@
# We populate DXE IPL tables with 1G pages preferably on Xen
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable|TRUE
+ #
+ # PcdFirstTimeWakeUpAPsBySipi determines whether to employ
+ # SIPI instead of the INIT-SIPI-SIPI sequence during APs
+ # initialization. Deactivate this parameter to preserve
+ # the original execution of INIT-SIPI-SIPI.
+ #
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|FALSE
+
################################################################################
#
# Pcd Dynamic Section - list of all EDK II PCD Entries defined by this Platform
--
2.36.1.windows.1
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