-/** @file
- Definitions to install Multiple Processor PPI.
-
- 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 _CPU_MP_PEI_H_
-#define _CPU_MP_PEI_H_
-
-#include <PiPei.h>
-
-#include <Ppi/MpServices.h>
-#include <Ppi/SecPlatformInformation.h>
-#include <Ppi/SecPlatformInformation2.h>
-#include <Ppi/EndOfPeiPhase.h>
-
-#include <Register/LocalApic.h>
-
-#include <Library/BaseLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/DebugLib.h>
-#include <Library/HobLib.h>
-#include <Library/LocalApicLib.h>
-#include <Library/MtrrLib.h>
-#include <Library/PcdLib.h>
-#include <Library/PeimEntryPoint.h>
-#include <Library/PeiServicesLib.h>
-#include <Library/ReportStatusCodeLib.h>
-#include <Library/SynchronizationLib.h>
-#include <Library/TimerLib.h>
-#include <Library/UefiCpuLib.h>
-
-#include "Microcode.h"
-
-//
-// AP state
-//
-typedef enum {
- CpuStateIdle,
- CpuStateBusy,
- CpuStateDisabled
-} CPU_STATE;
-
-//
-// AP reset code information
-//
-typedef struct {
- UINT8 *RendezvousFunnelAddress;
- UINTN PModeEntryOffset;
- UINTN LModeEntryOffset;
- UINTN RendezvousFunnelSize;
-} MP_ASSEMBLY_ADDRESS_MAP;
-
-//
-// CPU exchange information for switch BSP
-//
-typedef struct {
- UINT8 State; // offset 0
- UINTN StackPointer; // offset 4 / 8
- IA32_DESCRIPTOR Gdtr; // offset 8 / 16
- IA32_DESCRIPTOR Idtr; // offset 14 / 26
-} CPU_EXCHANGE_ROLE_INFO;
-
-typedef struct _PEI_CPU_MP_DATA PEI_CPU_MP_DATA;
-
-#pragma pack()
-
-typedef union {
- struct {
- UINT32 LimitLow : 16;
- UINT32 BaseLow : 16;
- UINT32 BaseMid : 8;
- UINT32 Type : 4;
- UINT32 System : 1;
- UINT32 Dpl : 2;
- UINT32 Present : 1;
- UINT32 LimitHigh : 4;
- UINT32 Software : 1;
- UINT32 Reserved : 1;
- UINT32 DefaultSize : 1;
- UINT32 Granularity : 1;
- UINT32 BaseHigh : 8;
- } Bits;
- UINT64 Uint64;
-} IA32_GDT;
-
-//
-// MP CPU exchange information for AP reset code
-//
-typedef struct {
- UINTN Lock;
- UINTN StackStart;
- UINTN StackSize;
- UINTN CFunction;
- IA32_DESCRIPTOR GdtrProfile;
- IA32_DESCRIPTOR IdtrProfile;
- UINTN BufferStart;
- UINTN PmodeOffset;
- UINTN NumApsExecuting;
- UINTN LmodeOffset;
- UINTN Cr3;
- PEI_CPU_MP_DATA *PeiCpuMpData;
-} MP_CPU_EXCHANGE_INFO;
-
-#pragma pack()
-
-typedef struct {
- UINT32 ApicId;
- EFI_HEALTH_FLAGS Health;
- CPU_STATE State;
- BOOLEAN CpuHealthy;
-} PEI_CPU_DATA;
-
-//
-// PEI CPU MP Data save in memory
-//
-struct _PEI_CPU_MP_DATA {
- UINT32 CpuCount;
- UINT32 BspNumber;
- UINTN Buffer;
- UINTN CpuApStackSize;
- MP_ASSEMBLY_ADDRESS_MAP AddressMap;
- UINTN WakeupBuffer;
- UINTN BackupBuffer;
- UINTN BackupBufferSize;
- UINTN ApFunction;
- UINTN ApFunctionArgument;
- volatile UINT32 FinishedCount;
- BOOLEAN EndOfPeiFlag;
- BOOLEAN InitFlag;
- CPU_EXCHANGE_ROLE_INFO BSPInfo;
- CPU_EXCHANGE_ROLE_INFO APInfo;
- MTRR_SETTINGS MtrrTable;
- PEI_CPU_DATA *CpuData;
- volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo;
-};
-extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;
-
-
-/**
- Assembly code to get starting address and size of the rendezvous entry for APs.
- Information for fixing a jump instruction in the code is also returned.
-
- @param AddressMap Output buffer for address map information.
-**/
-VOID
-EFIAPI
-AsmGetAddressMap (
- OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap
- );
-
-/**
- Assembly code to load GDT table and update segment accordingly.
-
- @param Gdtr Pointer to GDT descriptor
-**/
-VOID
-EFIAPI
-AsmInitializeGdt (
- IN IA32_DESCRIPTOR *Gdtr
- );
-
-/**
- Assembly code to do CLI-HALT loop.
-
-**/
-VOID
-EFIAPI
-AsmCliHltLoop (
- VOID
- );
-
-/**
- Get available system memory below 1MB by specified size.
-
- @param PeiCpuMpData Pointer to PEI CPU MP Data
-**/
-VOID
-BackupAndPrepareWakeupBuffer(
- IN PEI_CPU_MP_DATA *PeiCpuMpData
- );
-
-/**
- Restore wakeup buffer data.
-
- @param PeiCpuMpData Pointer to PEI CPU MP Data
-**/
-VOID
-RestoreWakeupBuffer(
- IN PEI_CPU_MP_DATA *PeiCpuMpData
- );
-
-/**
- Notify function on End Of Pei PPI.
-
- On S3 boot, this function will restore wakeup buffer data.
- On normal boot, this function will flag wakeup buffer to be un-used type.
-
- @param PeiServices The pointer to the PEI Services Table.
- @param NotifyDescriptor Address of the notification descriptor data structure.
- @param Ppi Address of the PPI that was installed.
-
- @retval EFI_SUCCESS When everything is OK.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuMpEndOfPeiCallback (
- IN EFI_PEI_SERVICES **PeiServices,
- IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
- IN VOID *Ppi
- );
-
-/**
- This function will be called by BSP to wakeup AP.
-
- @param PeiCpuMpData Pointer to PEI CPU MP Data
- @param Broadcast TRUE: Send broadcast IPI to all APs
- FALSE: Send IPI to AP by ApicId
- @param ApicId Apic ID for the processor to be waked
- @param Procedure The function to be invoked by AP
- @param ProcedureArgument The argument to be passed into AP function
-**/
-VOID
-WakeUpAP (
- IN PEI_CPU_MP_DATA *PeiCpuMpData,
- IN BOOLEAN Broadcast,
- IN UINT32 ApicId,
- IN EFI_AP_PROCEDURE Procedure, OPTIONAL
- IN VOID *ProcedureArgument OPTIONAL
- );
-
-/**
- Get CPU MP Data pointer from the Guided HOB.
-
- @return Pointer to Pointer to PEI CPU MP Data
-**/
-PEI_CPU_MP_DATA *
-GetMpHobData (
- VOID
- );
-
-/**
- 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
- );
-
-/**
- Collects BIST data from PPI.
-
- This function collects BIST data from Sec Platform Information2 PPI
- or SEC Platform Information PPI.
-
- @param PeiServices Pointer to PEI Services Table
- @param PeiCpuMpData Pointer to PEI CPU MP Data
-
-**/
-VOID
-CollectBistDataFromPpi (
- IN CONST EFI_PEI_SERVICES **PeiServices,
- IN PEI_CPU_MP_DATA *PeiCpuMpData
- );
-
-/**
- Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.
-
- @param PeiServices The pointer to the PEI Services Table.
- @param StructureSize The pointer to the variable describing size of the input buffer.
- @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.
-
- @retval EFI_SUCCESS The data was successfully returned.
- @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to
- hold the record is returned in StructureSize.
-
-**/
-EFI_STATUS
-EFIAPI
-SecPlatformInformation2 (
- IN CONST EFI_PEI_SERVICES **PeiServices,
- IN OUT UINT64 *StructureSize,
- OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2
- );
-
-#endif
+/** @file\r
+ Definitions to install Multiple Processor PPI.\r
+\r
+ Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#ifndef _CPU_MP_PEI_H_\r
+#define _CPU_MP_PEI_H_\r
+\r
+#include <PiPei.h>\r
+\r
+#include <Ppi/MpServices.h>\r
+#include <Ppi/SecPlatformInformation.h>\r
+#include <Ppi/SecPlatformInformation2.h>\r
+#include <Ppi/EndOfPeiPhase.h>\r
+\r
+#include <Library/BaseLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/HobLib.h>\r
+#include <Library/LocalApicLib.h>\r
+#include <Library/PeimEntryPoint.h>\r
+#include <Library/PeiServicesLib.h>\r
+#include <Library/ReportStatusCodeLib.h>\r
+#include <Library/CpuExceptionHandlerLib.h>\r
+#include <Library/MpInitLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+\r
+extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;\r
+\r
+/**\r
+ This service retrieves the number of logical processor in the platform\r
+ and the number of those logical processors that are enabled on this boot.\r
+ This service may only be called from the BSP.\r
+\r
+ This function is used to retrieve the following information:\r
+ - The number of logical processors that are present in the system.\r
+ - The number of enabled logical processors in the system at the instant\r
+ this call is made.\r
+\r
+ Because MP Service Ppi provides services to enable and disable processors\r
+ dynamically, the number of enabled logical processors may vary during the\r
+ course of a boot session.\r
+\r
+ If this service is called from an AP, then EFI_DEVICE_ERROR is returned.\r
+ If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then\r
+ EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors\r
+ is returned in NumberOfProcessors, the number of currently enabled processor\r
+ is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This Pointer to this instance of the PPI.\r
+ @param[out] NumberOfProcessors Pointer to the total number of logical processors in\r
+ the system, including the BSP and disabled APs.\r
+ @param[out] NumberOfEnabledProcessors\r
+ Number of processors in the system that are enabled.\r
+\r
+ @retval EFI_SUCCESS The number of logical processors and enabled\r
+ logical processors was retrieved.\r
+ @retval EFI_DEVICE_ERROR The calling processor is an AP.\r
+ @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.\r
+ NumberOfEnabledProcessors is NULL.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiGetNumberOfProcessors (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ OUT UINTN *NumberOfProcessors,\r
+ OUT UINTN *NumberOfEnabledProcessors\r
+ );\r
+\r
+/**\r
+ Gets detailed MP-related information on the requested processor at the\r
+ instant this call is made. This service may only be called from the BSP.\r
+\r
+ This service retrieves detailed MP-related information about any processor\r
+ on the platform. Note the following:\r
+ - The processor information may change during the course of a boot session.\r
+ - The information presented here is entirely MP related.\r
+\r
+ Information regarding the number of caches and their sizes, frequency of operation,\r
+ slot numbers is all considered platform-related information and is not provided\r
+ by this service.\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This Pointer to this instance of the PPI.\r
+ @param[in] ProcessorNumber Pointer to the total number of logical processors in\r
+ the system, including the BSP and disabled APs.\r
+ @param[out] ProcessorInfoBuffer Number of processors in the system that are enabled.\r
+\r
+ @retval EFI_SUCCESS Processor information was returned.\r
+ @retval EFI_DEVICE_ERROR The calling processor is an AP.\r
+ @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.\r
+ @retval EFI_NOT_FOUND The processor with the handle specified by\r
+ ProcessorNumber does not exist in the platform.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiGetProcessorInfo (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ IN UINTN ProcessorNumber,\r
+ OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer\r
+ );\r
+\r
+/**\r
+ This service executes a caller provided function on all enabled APs. APs can\r
+ run either simultaneously or one at a time in sequence. This service supports\r
+ both blocking requests only. This service may only\r
+ be called from the BSP.\r
+\r
+ This function is used to dispatch all the enabled APs to the function specified\r
+ by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned\r
+ immediately and Procedure is not started on any AP.\r
+\r
+ If SingleThread is TRUE, all the enabled APs execute the function specified by\r
+ Procedure one by one, in ascending order of processor handle number. Otherwise,\r
+ all the enabled APs execute the function specified by Procedure simultaneously.\r
+\r
+ If the timeout specified by TimeoutInMicroSeconds expires before all APs return\r
+ from Procedure, then Procedure on the failed APs is terminated. All enabled APs\r
+ are always available for further calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
+ and EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If FailedCpuList is not NULL, its\r
+ content points to the list of processor handle numbers in which Procedure was\r
+ terminated.\r
+\r
+ Note: It is the responsibility of the consumer of the EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
+ to make sure that the nature of the code that is executed on the BSP and the\r
+ dispatched APs is well controlled. The MP Services Ppi does not guarantee\r
+ that the Procedure function is MP-safe. Hence, the tasks that can be run in\r
+ parallel are limited to certain independent tasks and well-controlled exclusive\r
+ code. PEI services and Ppis may not be called by APs unless otherwise\r
+ specified.\r
+\r
+ In blocking execution mode, BSP waits until all APs finish or\r
+ TimeoutInMicroSeconds expires.\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
+ @param[in] Procedure A pointer to the function to be run on enabled APs of\r
+ the system.\r
+ @param[in] SingleThread If TRUE, then all the enabled APs execute the function\r
+ specified by Procedure one by one, in ascending order\r
+ of processor handle number. If FALSE, then all the\r
+ enabled APs execute the function specified by Procedure\r
+ simultaneously.\r
+ @param[in] TimeoutInMicroSeconds\r
+ Indicates the time limit in microseconds for APs to\r
+ return from Procedure, for blocking mode only. Zero\r
+ means infinity. If the timeout expires before all APs\r
+ return from Procedure, then Procedure on the failed APs\r
+ is terminated. All enabled APs are available for next\r
+ function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
+ or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the\r
+ timeout expires in blocking mode, BSP returns\r
+ EFI_TIMEOUT.\r
+ @param[in] ProcedureArgument The parameter passed into Procedure for all APs.\r
+\r
+ @retval EFI_SUCCESS In blocking mode, all APs have finished before the\r
+ timeout expired.\r
+ @retval EFI_DEVICE_ERROR Caller processor is AP.\r
+ @retval EFI_NOT_STARTED No enabled APs exist in the system.\r
+ @retval EFI_NOT_READY Any enabled APs are busy.\r
+ @retval EFI_TIMEOUT In blocking mode, the timeout expired before all\r
+ enabled APs have finished.\r
+ @retval EFI_INVALID_PARAMETER Procedure is NULL.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiStartupAllAPs (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ IN EFI_AP_PROCEDURE Procedure,\r
+ IN BOOLEAN SingleThread,\r
+ IN UINTN TimeoutInMicroSeconds,\r
+ IN VOID *ProcedureArgument OPTIONAL\r
+ );\r
+\r
+/**\r
+ This service lets the caller get one enabled AP to execute a caller-provided\r
+ function. The caller can request the BSP to wait for the completion\r
+ of the AP. This service may only be called from the BSP.\r
+\r
+ This function is used to dispatch one enabled AP to the function specified by\r
+ Procedure passing in the argument specified by ProcedureArgument.\r
+ The execution is in blocking mode. The BSP waits until the AP finishes or\r
+ TimeoutInMicroSecondss expires.\r
+\r
+ If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r
+ from Procedure, then execution of Procedure by the AP is terminated. The AP is\r
+ available for subsequent calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs() and\r
+ EFI_PEI_MP_SERVICES_PPI.StartupThisAP().\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
+ @param[in] Procedure A pointer to the function to be run on enabled APs of\r
+ the system.\r
+ @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
+ total number of logical processors minus 1. The total\r
+ number of logical processors can be retrieved by\r
+ EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
+ @param[in] TimeoutInMicroseconds\r
+ Indicates the time limit in microseconds for APs to\r
+ return from Procedure, for blocking mode only. Zero\r
+ means infinity. If the timeout expires before all APs\r
+ return from Procedure, then Procedure on the failed APs\r
+ is terminated. All enabled APs are available for next\r
+ function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
+ or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the\r
+ timeout expires in blocking mode, BSP returns\r
+ EFI_TIMEOUT.\r
+ @param[in] ProcedureArgument The parameter passed into Procedure for all APs.\r
+\r
+ @retval EFI_SUCCESS In blocking mode, specified AP finished before the\r
+ timeout expires.\r
+ @retval EFI_DEVICE_ERROR The calling processor is an AP.\r
+ @retval EFI_TIMEOUT In blocking mode, the timeout expired before the\r
+ specified AP has finished.\r
+ @retval EFI_NOT_FOUND The processor with the handle specified by\r
+ ProcessorNumber does not exist.\r
+ @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r
+ @retval EFI_INVALID_PARAMETER Procedure is NULL.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiStartupThisAP (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ IN EFI_AP_PROCEDURE Procedure,\r
+ IN UINTN ProcessorNumber,\r
+ IN UINTN TimeoutInMicroseconds,\r
+ IN VOID *ProcedureArgument OPTIONAL\r
+ );\r
+\r
+/**\r
+ This service switches the requested AP to be the BSP from that point onward.\r
+ This service changes the BSP for all purposes. This call can only be performed\r
+ by the current BSP.\r
+\r
+ This service switches the requested AP to be the BSP from that point onward.\r
+ This service changes the BSP for all purposes. The new BSP can take over the\r
+ execution of the old BSP and continue seamlessly from where the old one left\r
+ off.\r
+\r
+ If the BSP cannot be switched prior to the return from this service, then\r
+ EFI_UNSUPPORTED must be returned.\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
+ @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
+ total number of logical processors minus 1. The total\r
+ number of logical processors can be retrieved by\r
+ EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
+ @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an enabled\r
+ AP. Otherwise, it will be disabled.\r
+\r
+ @retval EFI_SUCCESS BSP successfully switched.\r
+ @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to this\r
+ service returning.\r
+ @retval EFI_UNSUPPORTED Switching the BSP is not supported.\r
+ @retval EFI_DEVICE_ERROR The calling processor is an AP.\r
+ @retval EFI_NOT_FOUND The processor with the handle specified by\r
+ ProcessorNumber does not exist.\r
+ @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or a disabled\r
+ AP.\r
+ @retval EFI_NOT_READY The specified AP is busy.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiSwitchBSP (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ IN UINTN ProcessorNumber,\r
+ IN BOOLEAN EnableOldBSP\r
+ );\r
+\r
+/**\r
+ This service lets the caller enable or disable an AP from this point onward.\r
+ This service may only be called from the BSP.\r
+\r
+ This service allows the caller enable or disable an AP from this point onward.\r
+ The caller can optionally specify the health status of the AP by Health. If\r
+ an AP is being disabled, then the state of the disabled AP is implementation\r
+ dependent. If an AP is enabled, then the implementation must guarantee that a\r
+ complete initialization sequence is performed on the AP, so the AP is in a state\r
+ that is compatible with an MP operating system.\r
+\r
+ If the enable or disable AP operation cannot be completed prior to the return\r
+ from this service, then EFI_UNSUPPORTED must be returned.\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
+ @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
+ total number of logical processors minus 1. The total\r
+ number of logical processors can be retrieved by\r
+ EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
+ @param[in] EnableAP Specifies the new state for the processor for enabled,\r
+ FALSE for disabled.\r
+ @param[in] HealthFlag If not NULL, a pointer to a value that specifies the\r
+ new health status of the AP. This flag corresponds to\r
+ StatusFlag defined in EFI_PEI_MP_SERVICES_PPI.GetProcessorInfo().\r
+ Only the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r
+ bits are ignored. If it is NULL, this parameter is\r
+ ignored.\r
+\r
+ @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r
+ @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed prior\r
+ to this service returning.\r
+ @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r
+ @retval EFI_DEVICE_ERROR The calling processor is an AP.\r
+ @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r
+ does not exist.\r
+ @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiEnableDisableAP (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ IN UINTN ProcessorNumber,\r
+ IN BOOLEAN EnableAP,\r
+ IN UINT32 *HealthFlag OPTIONAL\r
+ );\r
+\r
+/**\r
+ This return the handle number for the calling processor. This service may be\r
+ called from the BSP and APs.\r
+\r
+ This service returns the processor handle number for the calling processor.\r
+ The returned value is in the range from 0 to the total number of logical\r
+ processors minus 1. The total number of logical processors can be retrieved\r
+ with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be\r
+ called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r
+ is returned. Otherwise, the current processors handle number is returned in\r
+ ProcessorNumber, and EFI_SUCCESS is returned.\r
+\r
+ @param[in] PeiServices An indirect pointer to the PEI Services Table\r
+ published by the PEI Foundation.\r
+ @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
+ @param[out] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
+ total number of logical processors minus 1. The total\r
+ number of logical processors can be retrieved by\r
+ EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
+\r
+ @retval EFI_SUCCESS The current processor handle number was returned in\r
+ ProcessorNumber.\r
+ @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PeiWhoAmI (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_PEI_MP_SERVICES_PPI *This,\r
+ OUT UINTN *ProcessorNumber\r
+ );\r
+\r
+/**\r
+ Collects BIST data from PPI.\r
+\r
+ This function collects BIST data from Sec Platform Information2 PPI\r
+ or SEC Platform Information PPI.\r
+\r
+ @param PeiServices Pointer to PEI Services Table\r
+\r
+**/\r
+VOID\r
+CollectBistDataFromPpi (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices\r
+ );\r
+\r
+/**\r
+ Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.\r
+\r
+ @param PeiServices The pointer to the PEI Services Table.\r
+ @param StructureSize The pointer to the variable describing size of the input buffer.\r
+ @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.\r
+\r
+ @retval EFI_SUCCESS The data was successfully returned.\r
+ @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to\r
+ hold the record is returned in StructureSize.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SecPlatformInformation2 (\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN OUT UINT64 *StructureSize,\r
+ OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2\r
+ );\r
+\r
+#endif\r