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* [PATCH] UefiCpuPkg/RegisterCpuFeaturesLib: Support MpServices2 only case.
@ 2020-09-10  9:02 Chiu, Chasel
  2020-09-10 11:03 ` Laszlo Ersek
  2020-09-11  2:31 ` Dong, Eric
  0 siblings, 2 replies; 5+ messages in thread
From: Chiu, Chasel @ 2020-09-10  9:02 UTC (permalink / raw)
  To: devel
  Cc: Chasel Chiu, Eric Dong, Ray Ni, Laszlo Ersek, Rahul Kumar,
	Nate DeSimone

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2883

MpServices Ppi can be replaced by MpServices2 Ppi and MpServices2
Ppi is mandatory for RegisterCpuFeaturesLib functionality,
basing on this we can drop MpServices Ppi usage from the library
and the constraint that both Ppis must be installed.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
---
 UefiCpuPkg/Library/RegisterCpuFeaturesLib/PeiRegisterCpuFeaturesLib.c | 61 +++++++++++++++++++++++--------------------------------------
 UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h       |  6 +++---
 2 files changed, 26 insertions(+), 41 deletions(-)

diff --git a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/PeiRegisterCpuFeaturesLib.c b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/PeiRegisterCpuFeaturesLib.c
index 64768f7a74..4e558e9fee 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/PeiRegisterCpuFeaturesLib.c
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/PeiRegisterCpuFeaturesLib.c
@@ -1,7 +1,7 @@
 /** @file
   CPU Register Table Library functions.
 
-  Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2016 - 2020, Intel Corporation. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -11,7 +11,6 @@
 #include <Library/HobLib.h>
 #include <Library/PeiServicesLib.h>
 #include <Library/PeiServicesTablePointerLib.h>
-#include <Ppi/MpServices.h>
 #include <Ppi/MpServices2.h>
 
 #include "RegisterCpuFeatures.h"
@@ -75,10 +74,10 @@ GetMpService (
   MP_SERVICES                MpService;
 
   //
-  // Get MP Services Protocol
+  // Get MP Services2 Ppi
   //
   Status = PeiServicesLocatePpi (
-             &gEfiPeiMpServicesPpiGuid,
+             &gEdkiiPeiMpServices2PpiGuid,
              0,
              NULL,
              (VOID **)&MpService.Ppi
@@ -100,17 +99,17 @@ GetProcessorIndex (
   )
 {
   EFI_STATUS                 Status;
-  EFI_PEI_MP_SERVICES_PPI    *CpuMpPpi;
+  EDKII_PEI_MP_SERVICES2_PPI *CpuMp2Ppi;
   UINTN                      ProcessorIndex;
 
-  CpuMpPpi = CpuFeaturesData->MpService.Ppi;
+  CpuMp2Ppi = CpuFeaturesData->MpService.Ppi;
 
   //
   // For two reasons which use NULL for WhoAmI:
   // 1. This function will be called by APs and AP should not use PeiServices Table
   // 2. Check WhoAmI implementation, this parameter will not be used.
   //
-  Status = CpuMpPpi->WhoAmI(NULL, CpuMpPpi, &ProcessorIndex);
+  Status = CpuMp2Ppi->WhoAmI (CpuMp2Ppi, &ProcessorIndex);
   ASSERT_EFI_ERROR (Status);
   return ProcessorIndex;
 }
@@ -131,16 +130,15 @@ GetProcessorInformation (
   OUT EFI_PROCESSOR_INFORMATION        *ProcessorInfoBuffer
   )
 {
-  EFI_PEI_MP_SERVICES_PPI    *CpuMpPpi;
+  EDKII_PEI_MP_SERVICES2_PPI *CpuMp2Ppi;
   EFI_STATUS                 Status;
   CPU_FEATURES_DATA          *CpuFeaturesData;
 
   CpuFeaturesData = GetCpuFeaturesData ();
-  CpuMpPpi = CpuFeaturesData->MpService.Ppi;
+  CpuMp2Ppi = CpuFeaturesData->MpService.Ppi;
 
-  Status = CpuMpPpi->GetProcessorInfo (
-               GetPeiServicesTablePointer(),
-               CpuMpPpi,
+  Status = CpuMp2Ppi->GetProcessorInfo (
+               CpuMp2Ppi,
                ProcessorNumber,
                ProcessorInfoBuffer
                );
@@ -162,18 +160,17 @@ StartupAllAPsWorker (
   )
 {
   EFI_STATUS                           Status;
-  EFI_PEI_MP_SERVICES_PPI              *CpuMpPpi;
+  EDKII_PEI_MP_SERVICES2_PPI           *CpuMp2Ppi;
   CPU_FEATURES_DATA                    *CpuFeaturesData;
 
   CpuFeaturesData = GetCpuFeaturesData ();
-  CpuMpPpi = CpuFeaturesData->MpService.Ppi;
+  CpuMp2Ppi = CpuFeaturesData->MpService.Ppi;
 
   //
   // Wakeup all APs for data collection.
   //
-  Status = CpuMpPpi->StartupAllAPs (
-                 GetPeiServicesTablePointer (),
-                 CpuMpPpi,
+  Status = CpuMp2Ppi->StartupAllAPs (
+                 CpuMp2Ppi,
                  Procedure,
                  FALSE,
                  0,
@@ -203,17 +200,7 @@ StartupAllCPUsWorker (
   //
   // Get MP Services2 Ppi
   //
-  Status = PeiServicesLocatePpi (
-             &gEdkiiPeiMpServices2PpiGuid,
-             0,
-             NULL,
-             (VOID **)&CpuMp2Ppi
-             );
-  ASSERT_EFI_ERROR (Status);
-
-  //
-  // Wakeup all APs for data collection.
-  //
+  CpuMp2Ppi = CpuFeaturesData->MpService.Ppi;
   Status = CpuMp2Ppi->StartupAllCPUs (
                  CpuMp2Ppi,
                  Procedure,
@@ -234,18 +221,17 @@ SwitchNewBsp (
   )
 {
   EFI_STATUS                           Status;
-  EFI_PEI_MP_SERVICES_PPI              *CpuMpPpi;
+  EDKII_PEI_MP_SERVICES2_PPI           *CpuMp2Ppi;
   CPU_FEATURES_DATA                    *CpuFeaturesData;
 
   CpuFeaturesData = GetCpuFeaturesData ();
-  CpuMpPpi = CpuFeaturesData->MpService.Ppi;
+  CpuMp2Ppi = CpuFeaturesData->MpService.Ppi;
 
   //
   // Wakeup all APs for data collection.
   //
-  Status = CpuMpPpi->SwitchBSP (
-                 GetPeiServicesTablePointer (),
-                 CpuMpPpi,
+  Status = CpuMp2Ppi->SwitchBSP (
+                 CpuMp2Ppi,
                  ProcessorNumber,
                  TRUE
                  );
@@ -269,18 +255,17 @@ GetNumberOfProcessor (
   )
 {
   EFI_STATUS                 Status;
-  EFI_PEI_MP_SERVICES_PPI    *CpuMpPpi;
+  EDKII_PEI_MP_SERVICES2_PPI *CpuMp2Ppi;
   CPU_FEATURES_DATA          *CpuFeaturesData;
 
   CpuFeaturesData = GetCpuFeaturesData ();
-  CpuMpPpi = CpuFeaturesData->MpService.Ppi;
+  CpuMp2Ppi = CpuFeaturesData->MpService.Ppi;
 
   //
   // Get the number of CPUs
   //
-  Status = CpuMpPpi->GetNumberOfProcessors (
-                         GetPeiServicesTablePointer (),
-                         CpuMpPpi,
+  Status = CpuMp2Ppi->GetNumberOfProcessors (
+                         CpuMp2Ppi,
                          NumberOfCpus,
                          NumberOfEnabledProcessors
                          );
diff --git a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h
index 53cb340b4c..e8a4aa644d 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h
@@ -10,7 +10,7 @@
 #define _REGISTER_CPU_FEATURES_H_
 #include <PiPei.h>
 #include <PiDxe.h>
-#include <Ppi/MpServices.h>
+#include <Ppi/MpServices2.h>
 #include <Protocol/MpService.h>
 
 #include <Library/BaseLib.h>
@@ -64,8 +64,8 @@ typedef struct {
 } PROGRAM_CPU_REGISTER_FLAGS;
 
 typedef union {
-  EFI_MP_SERVICES_PROTOCOL  *Protocol;
-  EFI_PEI_MP_SERVICES_PPI   *Ppi;
+  EFI_MP_SERVICES_PROTOCOL   *Protocol;
+  EDKII_PEI_MP_SERVICES2_PPI *Ppi;
 } MP_SERVICES;
 
 typedef struct {
-- 
2.13.3.windows.1


^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2020-09-14  0:51 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-09-10  9:02 [PATCH] UefiCpuPkg/RegisterCpuFeaturesLib: Support MpServices2 only case Chiu, Chasel
2020-09-10 11:03 ` Laszlo Ersek
2020-09-11  2:31 ` Dong, Eric
2020-09-11 18:37   ` Ni, Ray
2020-09-14  0:50     ` Chiu, Chasel

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