[mirror_edk2.git] / UefiCpuPkg / CpuMpPei / CpuMpPei.h

/** @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
Commit	Line	Data
ea0f431c JF	1	/** @file\r
	2	Definitions to install Multiple Processor PPI.\r
	3	\r
9bedfb2f	4	Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r
ea0f431c JF	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	**/\r
	14	\r
	15	#ifndef _CPU_MP_PEI_H_\r
	16	#define _CPU_MP_PEI_H_\r
	17	\r
	18	#include <PiPei.h>\r
	19	\r
	20	#include <Ppi/MpServices.h>\r
	21	#include <Ppi/SecPlatformInformation.h>\r
	22	#include <Ppi/SecPlatformInformation2.h>\r
	23	#include <Ppi/EndOfPeiPhase.h>\r
ea0f431c JF	24	\r
ea0f431c JF	25	#include <Library/BaseLib.h>\r
ea0f431c JF	26	#include <Library/DebugLib.h>\r
	27	#include <Library/HobLib.h>\r
	28	#include <Library/LocalApicLib.h>\r
ea0f431c JF	29	#include <Library/PeimEntryPoint.h>\r
	30	#include <Library/PeiServicesLib.h>\r
	31	#include <Library/ReportStatusCodeLib.h>\r
9bedfb2f	32	#include <Library/CpuExceptionHandlerLib.h>\r
a1a4c7a4	33	#include <Library/MpInitLib.h>\r
86432994	34	#include <Library/BaseMemoryLib.h>\r
ea0f431c	35	\r
ea0f431c JF	36	extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;\r
ea0f431c JF	37	\r
89fa1bf2 JF	38	/**\r
	39	This service retrieves the number of logical processor in the platform\r
	40	and the number of those logical processors that are enabled on this boot.\r
	41	This service may only be called from the BSP.\r
	42	\r
	43	This function is used to retrieve the following information:\r
	44	- The number of logical processors that are present in the system.\r
	45	- The number of enabled logical processors in the system at the instant\r
	46	this call is made.\r
	47	\r
	48	Because MP Service Ppi provides services to enable and disable processors\r
	49	dynamically, the number of enabled logical processors may vary during the\r
	50	course of a boot session.\r
	51	\r
	52	If this service is called from an AP, then EFI_DEVICE_ERROR is returned.\r
	53	If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then\r
	54	EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors\r
	55	is returned in NumberOfProcessors, the number of currently enabled processor\r
	56	is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.\r
	57	\r
	58	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
	59	published by the PEI Foundation.\r
	60	@param[in] This Pointer to this instance of the PPI.\r
	61	@param[out] NumberOfProcessors Pointer to the total number of logical processors in\r
	62	the system, including the BSP and disabled APs.\r
	63	@param[out] NumberOfEnabledProcessors\r
	64	Number of processors in the system that are enabled.\r
	65	\r
	66	@retval EFI_SUCCESS The number of logical processors and enabled\r
	67	logical processors was retrieved.\r
	68	@retval EFI_DEVICE_ERROR The calling processor is an AP.\r
	69	@retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.\r
	70	NumberOfEnabledProcessors is NULL.\r
	71	**/\r
	72	EFI_STATUS\r
	73	EFIAPI\r
	74	PeiGetNumberOfProcessors (\r
	75	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	76	IN EFI_PEI_MP_SERVICES_PPI *This,\r
	77	OUT UINTN *NumberOfProcessors,\r
	78	OUT UINTN *NumberOfEnabledProcessors\r
	79	);\r
	80	\r
	81	/**\r
	82	Gets detailed MP-related information on the requested processor at the\r
	83	instant this call is made. This service may only be called from the BSP.\r
	84	\r
	85	This service retrieves detailed MP-related information about any processor\r
	86	on the platform. Note the following:\r
	87	- The processor information may change during the course of a boot session.\r
	88	- The information presented here is entirely MP related.\r
	89	\r
	90	Information regarding the number of caches and their sizes, frequency of operation,\r
	91	slot numbers is all considered platform-related information and is not provided\r
	92	by this service.\r
	93	\r
	94	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
	95	published by the PEI Foundation.\r
	96	@param[in] This Pointer to this instance of the PPI.\r
	97	@param[in] ProcessorNumber Pointer to the total number of logical processors in\r
	98	the system, including the BSP and disabled APs.\r
	99	@param[out] ProcessorInfoBuffer Number of processors in the system that are enabled.\r
	100	\r
	101	@retval EFI_SUCCESS Processor information was returned.\r
102	@retval EFI_DEVICE_ERROR The calling processor is an AP.\r
103	@retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.\r
104	@retval EFI_NOT_FOUND The processor with the handle specified by\r
105	ProcessorNumber does not exist in the platform.\r
106	**/\r
107	EFI_STATUS\r
108	EFIAPI\r
109	PeiGetProcessorInfo (\r
110	IN CONST EFI_PEI_SERVICES **PeiServices,\r
111	IN EFI_PEI_MP_SERVICES_PPI *This,\r
112	IN UINTN ProcessorNumber,\r
113	OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer\r
114	);\r
115	\r
116	/**\r
117	This service executes a caller provided function on all enabled APs. APs can\r
118	run either simultaneously or one at a time in sequence. This service supports\r
119	both blocking requests only. This service may only\r
120	be called from the BSP.\r
121	\r
122	This function is used to dispatch all the enabled APs to the function specified\r
123	by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned\r
124	immediately and Procedure is not started on any AP.\r
125	\r
126	If SingleThread is TRUE, all the enabled APs execute the function specified by\r
127	Procedure one by one, in ascending order of processor handle number. Otherwise,\r
128	all the enabled APs execute the function specified by Procedure simultaneously.\r
129	\r
130	If the timeout specified by TimeoutInMicroSeconds expires before all APs return\r
131	from Procedure, then Procedure on the failed APs is terminated. All enabled APs\r
132	are always available for further calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
133	and EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If FailedCpuList is not NULL, its\r
134	content points to the list of processor handle numbers in which Procedure was\r
135	terminated.\r
136	\r
137	Note: It is the responsibility of the consumer of the EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
138	to make sure that the nature of the code that is executed on the BSP and the\r
139	dispatched APs is well controlled. The MP Services Ppi does not guarantee\r
140	that the Procedure function is MP-safe. Hence, the tasks that can be run in\r
141	parallel are limited to certain independent tasks and well-controlled exclusive\r
142	code. PEI services and Ppis may not be called by APs unless otherwise\r
143	specified.\r
144	\r
145	In blocking execution mode, BSP waits until all APs finish or\r
146	TimeoutInMicroSeconds expires.\r
147	\r
148	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
149	published by the PEI Foundation.\r
150	@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
151	@param[in] Procedure A pointer to the function to be run on enabled APs of\r
152	the system.\r
153	@param[in] SingleThread If TRUE, then all the enabled APs execute the function\r
154	specified by Procedure one by one, in ascending order\r
155	of processor handle number. If FALSE, then all the\r
156	enabled APs execute the function specified by Procedure\r
157	simultaneously.\r
158	@param[in] TimeoutInMicroSeconds\r
159	Indicates the time limit in microseconds for APs to\r
160	return from Procedure, for blocking mode only. Zero\r
161	means infinity. If the timeout expires before all APs\r
162	return from Procedure, then Procedure on the failed APs\r
163	is terminated. All enabled APs are available for next\r
164	function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
165	or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the\r
166	timeout expires in blocking mode, BSP returns\r
167	EFI_TIMEOUT.\r
168	@param[in] ProcedureArgument The parameter passed into Procedure for all APs.\r
169	\r
170	@retval EFI_SUCCESS In blocking mode, all APs have finished before the\r
171	timeout expired.\r
172	@retval EFI_DEVICE_ERROR Caller processor is AP.\r
173	@retval EFI_NOT_STARTED No enabled APs exist in the system.\r
174	@retval EFI_NOT_READY Any enabled APs are busy.\r
175	@retval EFI_TIMEOUT In blocking mode, the timeout expired before all\r
176	enabled APs have finished.\r
177	@retval EFI_INVALID_PARAMETER Procedure is NULL.\r
178	**/\r
179	EFI_STATUS\r
180	EFIAPI\r
181	PeiStartupAllAPs (\r
182	IN CONST EFI_PEI_SERVICES **PeiServices,\r
183	IN EFI_PEI_MP_SERVICES_PPI *This,\r
184	IN EFI_AP_PROCEDURE Procedure,\r
185	IN BOOLEAN SingleThread,\r
186	IN UINTN TimeoutInMicroSeconds,\r
187	IN VOID *ProcedureArgument OPTIONAL\r
188	);\r
189	\r
190	/**\r
191	This service lets the caller get one enabled AP to execute a caller-provided\r
192	function. The caller can request the BSP to wait for the completion\r
193	of the AP. This service may only be called from the BSP.\r
194	\r
195	This function is used to dispatch one enabled AP to the function specified by\r
196	Procedure passing in the argument specified by ProcedureArgument.\r
197	The execution is in blocking mode. The BSP waits until the AP finishes or\r
198	TimeoutInMicroSecondss expires.\r
199	\r
200	If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r
201	from Procedure, then execution of Procedure by the AP is terminated. The AP is\r
202	available for subsequent calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs() and\r
203	EFI_PEI_MP_SERVICES_PPI.StartupThisAP().\r
204	\r
205	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
206	published by the PEI Foundation.\r
207	@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
208	@param[in] Procedure A pointer to the function to be run on enabled APs of\r
209	the system.\r
210	@param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
211	total number of logical processors minus 1. The total\r
212	number of logical processors can be retrieved by\r
213	EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
214	@param[in] TimeoutInMicroseconds\r
215	Indicates the time limit in microseconds for APs to\r
216	return from Procedure, for blocking mode only. Zero\r
217	means infinity. If the timeout expires before all APs\r
218	return from Procedure, then Procedure on the failed APs\r
219	is terminated. All enabled APs are available for next\r
220	function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r
221	or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the\r
222	timeout expires in blocking mode, BSP returns\r
223	EFI_TIMEOUT.\r
224	@param[in] ProcedureArgument The parameter passed into Procedure for all APs.\r
225	\r
226	@retval EFI_SUCCESS In blocking mode, specified AP finished before the\r
227	timeout expires.\r
228	@retval EFI_DEVICE_ERROR The calling processor is an AP.\r
229	@retval EFI_TIMEOUT In blocking mode, the timeout expired before the\r
230	specified AP has finished.\r
231	@retval EFI_NOT_FOUND The processor with the handle specified by\r
232	ProcessorNumber does not exist.\r
233	@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r
234	@retval EFI_INVALID_PARAMETER Procedure is NULL.\r
235	**/\r
236	EFI_STATUS\r
237	EFIAPI\r
238	PeiStartupThisAP (\r
239	IN CONST EFI_PEI_SERVICES **PeiServices,\r
240	IN EFI_PEI_MP_SERVICES_PPI *This,\r
241	IN EFI_AP_PROCEDURE Procedure,\r
242	IN UINTN ProcessorNumber,\r
243	IN UINTN TimeoutInMicroseconds,\r
244	IN VOID *ProcedureArgument OPTIONAL\r
245	);\r
246	\r
247	/**\r
248	This service switches the requested AP to be the BSP from that point onward.\r
249	This service changes the BSP for all purposes. This call can only be performed\r
250	by the current BSP.\r
251	\r
252	This service switches the requested AP to be the BSP from that point onward.\r
253	This service changes the BSP for all purposes. The new BSP can take over the\r
254	execution of the old BSP and continue seamlessly from where the old one left\r
255	off.\r
256	\r
257	If the BSP cannot be switched prior to the return from this service, then\r
258	EFI_UNSUPPORTED must be returned.\r
259	\r
260	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
261	published by the PEI Foundation.\r
262	@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
263	@param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
264	total number of logical processors minus 1. The total\r
265	number of logical processors can be retrieved by\r
266	EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
267	@param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an enabled\r
268	AP. Otherwise, it will be disabled.\r
269	\r
270	@retval EFI_SUCCESS BSP successfully switched.\r
271	@retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to this\r
272	service returning.\r
273	@retval EFI_UNSUPPORTED Switching the BSP is not supported.\r
e3ae7f52	274	@retval EFI_DEVICE_ERROR The calling processor is an AP.\r
89fa1bf2 JF	275	@retval EFI_NOT_FOUND The processor with the handle specified by\r
	276	ProcessorNumber does not exist.\r
	277	@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or a disabled\r
	278	AP.\r
	279	@retval EFI_NOT_READY The specified AP is busy.\r
	280	**/\r
	281	EFI_STATUS\r
	282	EFIAPI\r
	283	PeiSwitchBSP (\r
	284	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	285	IN EFI_PEI_MP_SERVICES_PPI *This,\r
	286	IN UINTN ProcessorNumber,\r
	287	IN BOOLEAN EnableOldBSP\r
	288	);\r
	289	\r
	290	/**\r
	291	This service lets the caller enable or disable an AP from this point onward.\r
	292	This service may only be called from the BSP.\r
	293	\r
	294	This service allows the caller enable or disable an AP from this point onward.\r
	295	The caller can optionally specify the health status of the AP by Health. If\r
	296	an AP is being disabled, then the state of the disabled AP is implementation\r
	297	dependent. If an AP is enabled, then the implementation must guarantee that a\r
	298	complete initialization sequence is performed on the AP, so the AP is in a state\r
	299	that is compatible with an MP operating system.\r
	300	\r
	301	If the enable or disable AP operation cannot be completed prior to the return\r
	302	from this service, then EFI_UNSUPPORTED must be returned.\r
	303	\r
	304	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
	305	published by the PEI Foundation.\r
	306	@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
	307	@param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
	308	total number of logical processors minus 1. The total\r
	309	number of logical processors can be retrieved by\r
	310	EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
	311	@param[in] EnableAP Specifies the new state for the processor for enabled,\r
	312	FALSE for disabled.\r
	313	@param[in] HealthFlag If not NULL, a pointer to a value that specifies the\r
	314	new health status of the AP. This flag corresponds to\r
	315	StatusFlag defined in EFI_PEI_MP_SERVICES_PPI.GetProcessorInfo().\r
	316	Only the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r
	317	bits are ignored. If it is NULL, this parameter is\r
	318	ignored.\r
	319	\r
	320	@retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r
	321	@retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed prior\r
	322	to this service returning.\r
	323	@retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r
	324	@retval EFI_DEVICE_ERROR The calling processor is an AP.\r
	325	@retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r
	326	does not exist.\r
	327	@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r
	328	**/\r
	329	EFI_STATUS\r
	330	EFIAPI\r
	331	PeiEnableDisableAP (\r
	332	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	333	IN EFI_PEI_MP_SERVICES_PPI *This,\r
	334	IN UINTN ProcessorNumber,\r
	335	IN BOOLEAN EnableAP,\r
	336	IN UINT32 *HealthFlag OPTIONAL\r
	337	);\r
	338	\r
339	/**\r
340	This return the handle number for the calling processor. This service may be\r
341	called from the BSP and APs.\r
342	\r
343	This service returns the processor handle number for the calling processor.\r
344	The returned value is in the range from 0 to the total number of logical\r
345	processors minus 1. The total number of logical processors can be retrieved\r
346	with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be\r
347	called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r
348	is returned. Otherwise, the current processors handle number is returned in\r
349	ProcessorNumber, and EFI_SUCCESS is returned.\r
350	\r
351	@param[in] PeiServices An indirect pointer to the PEI Services Table\r
352	published by the PEI Foundation.\r
353	@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r
354	@param[out] ProcessorNumber The handle number of the AP. The range is from 0 to the\r
355	total number of logical processors minus 1. The total\r
356	number of logical processors can be retrieved by\r
357	EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r
358	\r
359	@retval EFI_SUCCESS The current processor handle number was returned in\r
360	ProcessorNumber.\r
361	@retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r
362	**/\r
363	EFI_STATUS\r
364	EFIAPI\r
365	PeiWhoAmI (\r
366	IN CONST EFI_PEI_SERVICES **PeiServices,\r
367	IN EFI_PEI_MP_SERVICES_PPI *This,\r
368	OUT UINTN *ProcessorNumber\r
369	);\r
ea0f431c	370	\r
ea0f431c JF	371	/**\r
	372	Collects BIST data from PPI.\r
	373	\r
	374	This function collects BIST data from Sec Platform Information2 PPI\r
	375	or SEC Platform Information PPI.\r
	376	\r
	377	@param PeiServices Pointer to PEI Services Table\r
ea0f431c JF	378	\r
	379	**/\r
	380	VOID\r
	381	CollectBistDataFromPpi (\r
a1a4c7a4	382	IN CONST EFI_PEI_SERVICES **PeiServices\r
ea0f431c JF	383	);\r
	384	\r
	385	/**\r
	386	Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.\r
	387	\r
	388	@param PeiServices The pointer to the PEI Services Table.\r
	389	@param StructureSize The pointer to the variable describing size of the input buffer.\r
	390	@param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.\r
	391	\r
	392	@retval EFI_SUCCESS The data was successfully returned.\r
	393	@retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to\r
	394	hold the record is returned in StructureSize.\r
	395	\r
	396	**/\r
	397	EFI_STATUS\r
	398	EFIAPI\r
	399	SecPlatformInformation2 (\r
	400	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	401	IN OUT UINT64 *StructureSize,\r
	402	OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2\r
	403	);\r
	404	\r
	405	#endif\r