[edk2-devel] [Patch V6 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi
Yuanhao Xie
yuanhao.xie at intel.com
Fri Jul 28 06:25:27 UTC 2023
Add PcdFirstTimeWakeUpAPsBySipi to check if it is in the OVMF environment
and necessary to wake up APs by INIT-SIPI-SIPI.
Cc: Eric Dong <eric.dong at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Cc: Rahul Kumar <rahul1.kumar at intel.com>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Signed-off-by: Yuanhao Xie <yuanhao.xie at intel.com>
Reviewed-by: Ray Ni <ray.ni at intel.com>
---
UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf | 1 +
UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf | 1 +
UefiCpuPkg/UefiCpuPkg.dec | 11 +++++++++++
3 files changed, 13 insertions(+)
diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf b/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
index 7d45d3ad4d..55e46d4a1f 100644
--- a/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
+++ b/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
@@ -81,6 +81,7 @@
gUefiCpuPkgTokenSpaceGuid.PcdCpuApStatusCheckIntervalInMicroSeconds ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdGhcbHypervisorFeatures ## CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaBase ## SOMETIMES_CONSUMES
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase ## CONSUMES
gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr ## CONSUMES
diff --git a/UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf b/UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf
index 83e9028d0f..bc3d716aa9 100644
--- a/UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf
+++ b/UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf
@@ -66,6 +66,7 @@
gUefiCpuPkgTokenSpaceGuid.PcdCpuApTargetCstate ## SOMETIMES_CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaBase ## SOMETIMES_CONSUMES
gUefiCpuPkgTokenSpaceGuid.PcdGhcbHypervisorFeatures ## CONSUMES
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdGhcbBase ## CONSUMES
gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr ## CONSUMES
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index e7726a605c..68473fc640 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -214,6 +214,17 @@
# @Prompt Configure the SEV-ES work area base
gUefiCpuPkgTokenSpaceGuid.PcdSevEsWorkAreaSize|0x0|UINT32|0x30002006
+ ## Determining APs' first-time wakeup by SIPI or INIT-SIPI-SIPI.
+ # Following a power-up or RESET of an MP system, The APs complete a
+ # minimal self-configuration, then wait for a startup signal (a SIPI
+ # message) from the BSP processor.
+ #
+ # TRUE - Broadcast SIPI.
+ # FALSE - Broadcast INIT-SIPI-SIPI.
+ #
+ # @Prompt BSP Broadcast Method for the first-time wakeup of APs
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|TRUE|BOOLEAN|0x30002007
+
[PcdsFixedAtBuild, PcdsPatchableInModule]
## This value is the CPU Local APIC base address, which aligns the address on a 4-KByte boundary.
# @Prompt Configure base address of CPU Local APIC
--
2.36.1.windows.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#107333): https://edk2.groups.io/g/devel/message/107333
Mute This Topic: https://groups.io/mt/100405920/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-
More information about the edk2-devel-archive
mailing list