Re: [edk2-devel] [Patch V4 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi

2023-07-27 Thread Zeng, Star
Would like to highlight it is for first time.

" Determining Whether APs Awakened from SIPI or INIT-SIPI-SIPI" to "Determining 
APs first time wakeup by SIPI or INIT-SIPI-SIPI" or similar.
" BSP Broadcast Method" -> " BSP Broadcast Method for first time AP wakeup" or 
similar.

Thanks,
Star
-Original Message-
From: Xie, Yuanhao  
Sent: Friday, July 28, 2023 1:24 PM
To: Zeng, Star 
Cc: Dong, Eric ; Ni, Ray ; Kumar, Rahul 
R ; Gerd Hoffmann ; 
devel@edk2.groups.io
Subject: RE: [Patch V4 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi

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 
Sent: Friday, July 28, 2023 1:18 PM
To: devel@edk2.groups.io
Cc: Dong, Eric ; Ni, Ray ; Kumar, Rahul 
R ; Gerd Hoffmann ; Xie, Yuanhao 

Subject: [Patch V4 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi

Add PcdFirstTimeWakeUpAPsBySipi to check if it is in the OVMF environment  and 
necessary to wake up APs by INIT-SIPI-SIPI.

Cc: Eric Dong 
Cc: Ray Ni 
Cc: Rahul Kumar 
Cc: Gerd Hoffmann 
Signed-off-by: Yuanhao Xie 
Reviewed-by: Ray Ni 
---
 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..fcfbd618dc 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 Whether APs Awakened from 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.
+  
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|TRUE|BOOLEAN|0x3
+ 0002007
+
 [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



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Re: [edk2-devel] [Patch V4 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi

2023-07-27 Thread Yuanhao Xie
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  
Sent: Friday, July 28, 2023 1:18 PM
To: devel@edk2.groups.io
Cc: Dong, Eric ; Ni, Ray ; Kumar, Rahul 
R ; Gerd Hoffmann ; Xie, Yuanhao 

Subject: [Patch V4 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi

Add PcdFirstTimeWakeUpAPsBySipi to check if it is in the OVMF environment  and 
necessary to wake up APs by INIT-SIPI-SIPI.

Cc: Eric Dong 
Cc: Ray Ni 
Cc: Rahul Kumar 
Cc: Gerd Hoffmann 
Signed-off-by: Yuanhao Xie 
Reviewed-by: Ray Ni 
---
 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..fcfbd618dc 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 Whether APs Awakened from 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.
+  
+ gUefiCpuPkgTokenSpaceGuid.PcdFirstTimeWakeUpAPsBySipi|TRUE|BOOLEAN|0x3
+ 0002007
+
 [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



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[edk2-devel] [Patch V4 2/4] UefiCpuPkg: Add PcdFirstTimeWakeUpAPsBySipi

2023-07-27 Thread Yuanhao Xie
Add PcdFirstTimeWakeUpAPsBySipi to check if it is in the OVMF environment
 and necessary to wake up APs by INIT-SIPI-SIPI.

Cc: Eric Dong 
Cc: Ray Ni 
Cc: Rahul Kumar 
Cc: Gerd Hoffmann 
Signed-off-by: Yuanhao Xie 
Reviewed-by: Ray Ni 
---
 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..fcfbd618dc 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 Whether APs Awakened from 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.
+  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



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