Revision: 18005
http://sourceforge.net/p/edk2/code/18005
Author: vanjeff
Date: 2015-07-15 03:41:59 +0000 (Wed, 15 Jul 2015)
Log Message:
-----------
UefiCpuPkg/CpuMpPei: Implementation of PeiWhoAmI ()
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <[email protected]>
Reviewed-by: Feng Tian <[email protected]>
Reviewed-by: Jiewen Yao <[email protected]>
Modified Paths:
--------------
trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.h
trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.inf
Added Paths:
-----------
trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.c
trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.h
Modified: trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.h
===================================================================
--- trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.h 2015-07-15 03:41:33 UTC (rev
18004)
+++ trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.h 2015-07-15 03:41:59 UTC (rev
18005)
@@ -17,6 +17,7 @@
#include <PiPei.h>
+#include <Ppi/MpServices.h>
#include <Ppi/SecPlatformInformation.h>
#include <Ppi/SecPlatformInformation2.h>
Modified: trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.inf
===================================================================
--- trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.inf 2015-07-15 03:41:33 UTC (rev
18004)
+++ trunk/edk2/UefiCpuPkg/CpuMpPei/CpuMpPei.inf 2015-07-15 03:41:59 UTC (rev
18005)
@@ -33,6 +33,8 @@
CpuBist.c
Microcode.h
Microcode.c
+ PeiMpServices.h
+ PeiMpServices.c
[Sources.IA32]
Ia32/MpEqu.inc
Added: trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.c
===================================================================
--- trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.c
(rev 0)
+++ trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.c 2015-07-15 03:41:59 UTC
(rev 18005)
@@ -0,0 +1,93 @@
+/** @file
+ Implementation of Multiple Processor PPI services.
+
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD
License
+ which accompanies this distribution. The full text of the license may be
found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "PeiMpServices.h"
+
+
+
+/**
+ Find the current Processor number by APIC ID.
+
+ @param PeiCpuMpData Pointer to PEI CPU MP Data
+ @param ProcessorNumber Return the pocessor number found
+
+ @retval EFI_SUCCESS ProcessorNumber is found and returned.
+ @retval EFI_NOT_FOUND ProcessorNumber is not found.
+**/
+EFI_STATUS
+GetProcessorNumber (
+ IN PEI_CPU_MP_DATA *PeiCpuMpData,
+ OUT UINTN *ProcessorNumber
+ )
+{
+ UINTN TotalProcessorNumber;
+ UINTN Index;
+
+ TotalProcessorNumber = PeiCpuMpData->CpuCount;
+ for (Index = 0; Index < TotalProcessorNumber; Index ++) {
+ if (PeiCpuMpData->CpuData[Index].ApicId == GetInitialApicId ()) {
+ *ProcessorNumber = Index;
+ return EFI_SUCCESS;
+ }
+ }
+ return EFI_NOT_FOUND;
+}
+
+
+/**
+ This return the handle number for the calling processor. This service may be
+ called from the BSP and APs.
+
+ This service returns the processor handle number for the calling processor.
+ The returned value is in the range from 0 to the total number of logical
+ processors minus 1. The total number of logical processors can be retrieved
+ with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be
+ called from the BSP and APs. If ProcessorNumber is NULL, then
EFI_INVALID_PARAMETER
+ is returned. Otherwise, the current processors handle number is returned in
+ ProcessorNumber, and EFI_SUCCESS is returned.
+
+ @param[in] PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI
instance.
+ @param[out] ProcessorNumber The handle number of the AP. The range is
from 0 to the
+ total number of logical processors minus 1.
The total
+ number of logical processors can be
retrieved by
+
EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
+
+ @retval EFI_SUCCESS The current processor handle number was
returned in
+ ProcessorNumber.
+ @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
+**/
+EFI_STATUS
+EFIAPI
+PeiWhoAmI (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_MP_SERVICES_PPI *This,
+ OUT UINTN *ProcessorNumber
+ )
+{
+ PEI_CPU_MP_DATA *PeiCpuMpData;
+
+ PeiCpuMpData = GetMpHobData ();
+ if (PeiCpuMpData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (ProcessorNumber == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return GetProcessorNumber (PeiCpuMpData, ProcessorNumber);
+}
+
Added: trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.h
===================================================================
--- trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.h
(rev 0)
+++ trunk/edk2/UefiCpuPkg/CpuMpPei/PeiMpServices.h 2015-07-15 03:41:59 UTC
(rev 18005)
@@ -0,0 +1,53 @@
+/** @file
+ Functions prototype of Multiple Processor PPI services.
+
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD
License
+ which accompanies this distribution. The full text of the license may be
found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _PEI_MP_SERVICES_H_
+#define _PEI_MP_SERVICES_H_
+
+#include "CpuMpPei.h"
+
+
+/**
+ This return the handle number for the calling processor. This service may be
+ called from the BSP and APs.
+
+ This service returns the processor handle number for the calling processor.
+ The returned value is in the range from 0 to the total number of logical
+ processors minus 1. The total number of logical processors can be retrieved
+ with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be
+ called from the BSP and APs. If ProcessorNumber is NULL, then
EFI_INVALID_PARAMETER
+ is returned. Otherwise, the current processors handle number is returned in
+ ProcessorNumber, and EFI_SUCCESS is returned.
+
+ @param[in] PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI
instance.
+ @param[out] ProcessorNumber The handle number of the AP. The range is
from 0 to the
+ total number of logical processors minus 1.
The total
+ number of logical processors can be
retrieved by
+
EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
+
+ @retval EFI_SUCCESS The current processor handle number was
returned in
+ ProcessorNumber.
+ @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
+**/
+EFI_STATUS
+EFIAPI
+PeiWhoAmI (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_MP_SERVICES_PPI *This,
+ OUT UINTN *ProcessorNumber
+ );
+
+#endif
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