[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
#include <Ppi/VectorHandoffInfo.h>\r
\r
#include <Register/Cpuid.h>\r
#include <Register/LocalApic.h>\r
#include <Register/Msr.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/HobLib.h>\r
#include <Library/LocalApicLib.h>\r
#include <Library/MtrrLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/PeimEntryPoint.h>\r
#include <Library/PeiServicesLib.h>\r
#include <Library/ReportStatusCodeLib.h>\r
#include <Library/SynchronizationLib.h>\r
#include <Library/TimerLib.h>\r
#include <Library/UefiCpuLib.h>\r
#include <Library/CpuLib.h>\r
#include <Library/CpuExceptionHandlerLib.h>\r
\r
#include "Microcode.h"\r
\r
//\r
// AP state\r
//\r
typedef enum {\r
  CpuStateIdle,\r
  CpuStateBusy,\r
  CpuStateDisabled\r
} CPU_STATE;\r
\r
#define WAKEUP_AP_SIGNAL SIGNATURE_32 ('S', 'T', 'A', 'P')\r
\r
typedef enum {\r
  ApInHltLoop   = 1,\r
  ApInMwaitLoop = 2,\r
  ApInRunLoop   = 3\r
} AP_LOOP_MODE;\r
\r
//\r
// AP reset code information\r
//\r
typedef struct {\r
  UINT8             *RendezvousFunnelAddress;\r
  UINTN             ModeEntryOffset;\r
  UINTN             RendezvousFunnelSize;\r
} MP_ASSEMBLY_ADDRESS_MAP;\r
\r
//\r
// CPU exchange information for switch BSP\r
//\r
typedef struct {\r
  UINT8             State;        // offset 0\r
  UINTN             StackPointer; // offset 4 / 8\r
  IA32_DESCRIPTOR   Gdtr;         // offset 8 / 16\r
  IA32_DESCRIPTOR   Idtr;         // offset 14 / 26\r
} CPU_EXCHANGE_ROLE_INFO;\r
\r
typedef struct _PEI_CPU_MP_DATA  PEI_CPU_MP_DATA;\r
\r
#pragma pack(1)\r
\r
//\r
// MP CPU exchange information for AP reset code\r
// This structure is required to be packed because fixed field offsets\r
// into this structure are used in assembly code in this module\r
//\r
typedef struct {\r
  UINTN                 Lock;\r
  UINTN                 StackStart;\r
  UINTN                 StackSize;\r
  UINTN                 CFunction;\r
  IA32_DESCRIPTOR       GdtrProfile;\r
  IA32_DESCRIPTOR       IdtrProfile;\r
  UINTN                 BufferStart;\r
  UINTN                 ModeOffset;\r
  UINTN                 NumApsExecuting;\r
  UINTN                 CodeSegment;\r
  UINTN                 DataSegment;\r
  UINTN                 Cr3;\r
  PEI_CPU_MP_DATA       *PeiCpuMpData;\r
} MP_CPU_EXCHANGE_INFO;\r
\r
#pragma pack()\r
\r
typedef struct {\r
  UINTN                          Cr0;\r
  UINTN                          Cr3;\r
  UINTN                          Cr4;\r
  UINTN                          Dr0;\r
  UINTN                          Dr1;\r
  UINTN                          Dr2;\r
  UINTN                          Dr3;\r
  UINTN                          Dr6;\r
  UINTN                          Dr7;\r
} CPU_VOLATILE_REGISTERS;\r
\r
typedef struct {\r
  volatile UINT32                *StartupApSignal;\r
  UINT32                         ApicId;\r
  EFI_HEALTH_FLAGS               Health;\r
  CPU_STATE                      State;\r
  BOOLEAN                        CpuHealthy;\r
  CPU_VOLATILE_REGISTERS         VolatileRegisters;\r
} PEI_CPU_DATA;\r
\r
//\r
// PEI CPU MP Data save in memory\r
//\r
struct _PEI_CPU_MP_DATA {\r
  SPIN_LOCK                      MpLock;\r
  UINT32                         CpuCount;\r
  UINT32                         BspNumber;\r
  UINTN                          Buffer;\r
  UINTN                          CpuApStackSize;\r
  MP_ASSEMBLY_ADDRESS_MAP        AddressMap;\r
  UINTN                          WakeupBuffer;\r
  UINTN                          BackupBuffer;\r
  UINTN                          BackupBufferSize;\r
  UINTN                          ApFunction;\r
  UINTN                          ApFunctionArgument;\r
  volatile UINT32                FinishedCount;\r
  BOOLEAN                        EndOfPeiFlag;\r
  BOOLEAN                        InitFlag;\r
  BOOLEAN                        X2ApicEnable;\r
  CPU_EXCHANGE_ROLE_INFO         BSPInfo;\r
  CPU_EXCHANGE_ROLE_INFO         APInfo;\r
  MTRR_SETTINGS                  MtrrTable;\r
  UINT8                          ApLoopMode;\r
  UINT8                          ApTargetCState;\r
  PEI_CPU_DATA                   *CpuData;\r
  volatile MP_CPU_EXCHANGE_INFO  *MpCpuExchangeInfo;\r
};\r
extern EFI_PEI_PPI_DESCRIPTOR   mPeiCpuMpPpiDesc;\r
\r
\r
/**\r
  Assembly code to get starting address and size of the rendezvous entry for APs.\r
  Information for fixing a jump instruction in the code is also returned.\r
\r
  @param AddressMap  Output buffer for address map information.\r
**/\r
VOID\r
EFIAPI\r
AsmGetAddressMap (\r
  OUT MP_ASSEMBLY_ADDRESS_MAP    *AddressMap\r
  );\r
\r
/**\r
  Assembly code to load GDT table and update segment accordingly.\r
\r
  @param Gdtr   Pointer to GDT descriptor\r
**/\r
VOID\r
EFIAPI\r
AsmInitializeGdt (\r
  IN IA32_DESCRIPTOR  *Gdtr\r
  );\r
\r
/**\r
  Get available system memory below 1MB by specified size.\r
\r
  @param PeiCpuMpData        Pointer to PEI CPU MP Data\r
**/\r
VOID\r
BackupAndPrepareWakeupBuffer(\r
  IN PEI_CPU_MP_DATA         *PeiCpuMpData\r
  );\r
\r
/**\r
  Restore wakeup buffer data.\r
\r
  @param PeiCpuMpData        Pointer to PEI CPU MP Data\r
**/\r
VOID\r
RestoreWakeupBuffer(\r
  IN PEI_CPU_MP_DATA         *PeiCpuMpData\r
  );\r
\r
/**\r
  Notify function on End Of Pei PPI.\r
\r
  On S3 boot, this function will restore wakeup buffer data.\r
  On normal boot, this function will flag wakeup buffer to be un-used type.\r
\r
  @param  PeiServices        The pointer to the PEI Services Table.\r
  @param  NotifyDescriptor   Address of the notification descriptor data structure.\r
  @param  Ppi                Address of the PPI that was installed.\r
\r
  @retval EFI_SUCCESS        When everything is OK.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
CpuMpEndOfPeiCallback (\r
  IN      EFI_PEI_SERVICES        **PeiServices,\r
  IN EFI_PEI_NOTIFY_DESCRIPTOR    *NotifyDescriptor,\r
  IN VOID                         *Ppi\r
  );\r
\r
/**\r
  This function will be called by BSP to wakeup AP.\r
\r
  @param PeiCpuMpData       Pointer to PEI CPU MP Data\r
  @param Broadcast          TRUE:  Send broadcast IPI to all APs\r
                            FALSE: Send IPI to AP by ApicId\r
  @param ProcessorNumber    The handle number of specified processor\r
  @param Procedure          The function to be invoked by AP\r
  @param ProcedureArgument  The argument to be passed into AP function\r
**/\r
VOID\r
WakeUpAP (\r
  IN PEI_CPU_MP_DATA           *PeiCpuMpData,\r
  IN BOOLEAN                   Broadcast,\r
  IN UINTN                     ProcessorNumber,\r
  IN EFI_AP_PROCEDURE          Procedure,              OPTIONAL\r
  IN VOID                      *ProcedureArgument      OPTIONAL\r
  );\r
\r
/**\r
  Get CPU MP Data pointer from the Guided HOB.\r
\r
  @return  Pointer to Pointer to PEI CPU MP Data\r
**/\r
PEI_CPU_MP_DATA *\r
GetMpHobData (\r
  VOID\r
  );\r
\r
/**\r
  Find the current Processor number by APIC ID.\r
\r
  @param PeiCpuMpData        Pointer to PEI CPU MP Data\r
  @param ProcessorNumber     Return the pocessor number found\r
\r
  @retval EFI_SUCCESS        ProcessorNumber is found and returned.\r
  @retval EFI_NOT_FOUND      ProcessorNumber is not found.\r
**/\r
EFI_STATUS\r
GetProcessorNumber (\r
  IN PEI_CPU_MP_DATA         *PeiCpuMpData,\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
  @param PeiCpuMpData        Pointer to PEI CPU MP Data\r
\r
**/\r
VOID\r
CollectBistDataFromPpi (\r
  IN CONST EFI_PEI_SERVICES             **PeiServices,\r
  IN PEI_CPU_MP_DATA                    *PeiCpuMpData\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
/**\r
  Detect whether specified processor can find matching microcode patch and load it.\r
\r
  @param PeiCpuMpData        Pointer to PEI CPU MP Data\r
**/\r
VOID\r
MicrocodeDetect (\r
  IN PEI_CPU_MP_DATA            *PeiCpuMpData\r
  );\r
\r
#endif\r
Commit	Line	Data
	1	/** @file\r
	2	Definitions to install Multiple Processor PPI.\r
	3	\r
	4	Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r
	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
	24	#include <Ppi/VectorHandoffInfo.h>\r
	25	\r
	26	#include <Register/Cpuid.h>\r
	27	#include <Register/LocalApic.h>\r
	28	#include <Register/Msr.h>\r
	29	\r
	30	#include <Library/BaseLib.h>\r
	31	#include <Library/BaseMemoryLib.h>\r
	32	#include <Library/DebugLib.h>\r
	33	#include <Library/HobLib.h>\r
	34	#include <Library/LocalApicLib.h>\r
	35	#include <Library/MtrrLib.h>\r
	36	#include <Library/PcdLib.h>\r
	37	#include <Library/PeimEntryPoint.h>\r
	38	#include <Library/PeiServicesLib.h>\r
	39	#include <Library/ReportStatusCodeLib.h>\r
	40	#include <Library/SynchronizationLib.h>\r
	41	#include <Library/TimerLib.h>\r
	42	#include <Library/UefiCpuLib.h>\r
	43	#include <Library/CpuLib.h>\r
	44	#include <Library/CpuExceptionHandlerLib.h>\r
	45	\r
	46	#include "Microcode.h"\r
	47	\r
	48	//\r
	49	// AP state\r
	50	//\r
	51	typedef enum {\r
	52	CpuStateIdle,\r
	53	CpuStateBusy,\r
	54	CpuStateDisabled\r
	55	} CPU_STATE;\r
	56	\r
	57	#define WAKEUP_AP_SIGNAL SIGNATURE_32 ('S', 'T', 'A', 'P')\r
	58	\r
	59	typedef enum {\r
	60	ApInHltLoop = 1,\r
	61	ApInMwaitLoop = 2,\r
	62	ApInRunLoop = 3\r
	63	} AP_LOOP_MODE;\r
	64	\r
	65	//\r
	66	// AP reset code information\r
	67	//\r
	68	typedef struct {\r
	69	UINT8 *RendezvousFunnelAddress;\r
	70	UINTN ModeEntryOffset;\r
	71	UINTN RendezvousFunnelSize;\r
	72	} MP_ASSEMBLY_ADDRESS_MAP;\r
	73	\r
	74	//\r
	75	// CPU exchange information for switch BSP\r
	76	//\r
	77	typedef struct {\r
	78	UINT8 State; // offset 0\r
	79	UINTN StackPointer; // offset 4 / 8\r
	80	IA32_DESCRIPTOR Gdtr; // offset 8 / 16\r
	81	IA32_DESCRIPTOR Idtr; // offset 14 / 26\r
	82	} CPU_EXCHANGE_ROLE_INFO;\r
	83	\r
	84	typedef struct _PEI_CPU_MP_DATA PEI_CPU_MP_DATA;\r
	85	\r
	86	#pragma pack(1)\r
	87	\r
	88	//\r
	89	// MP CPU exchange information for AP reset code\r
	90	// This structure is required to be packed because fixed field offsets\r
	91	// into this structure are used in assembly code in this module\r
	92	//\r
	93	typedef struct {\r
	94	UINTN Lock;\r
	95	UINTN StackStart;\r
	96	UINTN StackSize;\r
	97	UINTN CFunction;\r
	98	IA32_DESCRIPTOR GdtrProfile;\r
	99	IA32_DESCRIPTOR IdtrProfile;\r
	100	UINTN BufferStart;\r
	101	UINTN ModeOffset;\r
	102	UINTN NumApsExecuting;\r
	103	UINTN CodeSegment;\r
	104	UINTN DataSegment;\r
	105	UINTN Cr3;\r
	106	PEI_CPU_MP_DATA *PeiCpuMpData;\r
	107	} MP_CPU_EXCHANGE_INFO;\r
	108	\r
	109	#pragma pack()\r
	110	\r
	111	typedef struct {\r
	112	UINTN Cr0;\r
	113	UINTN Cr3;\r
	114	UINTN Cr4;\r
	115	UINTN Dr0;\r
	116	UINTN Dr1;\r
	117	UINTN Dr2;\r
	118	UINTN Dr3;\r
	119	UINTN Dr6;\r
	120	UINTN Dr7;\r
	121	} CPU_VOLATILE_REGISTERS;\r
	122	\r
	123	typedef struct {\r
	124	volatile UINT32 *StartupApSignal;\r
	125	UINT32 ApicId;\r
	126	EFI_HEALTH_FLAGS Health;\r
	127	CPU_STATE State;\r
	128	BOOLEAN CpuHealthy;\r
	129	CPU_VOLATILE_REGISTERS VolatileRegisters;\r
	130	} PEI_CPU_DATA;\r
	131	\r
	132	//\r
	133	// PEI CPU MP Data save in memory\r
	134	//\r
	135	struct _PEI_CPU_MP_DATA {\r
	136	SPIN_LOCK MpLock;\r
	137	UINT32 CpuCount;\r
	138	UINT32 BspNumber;\r
	139	UINTN Buffer;\r
	140	UINTN CpuApStackSize;\r
	141	MP_ASSEMBLY_ADDRESS_MAP AddressMap;\r
	142	UINTN WakeupBuffer;\r
	143	UINTN BackupBuffer;\r
	144	UINTN BackupBufferSize;\r
	145	UINTN ApFunction;\r
	146	UINTN ApFunctionArgument;\r
	147	volatile UINT32 FinishedCount;\r
	148	BOOLEAN EndOfPeiFlag;\r
	149	BOOLEAN InitFlag;\r
	150	BOOLEAN X2ApicEnable;\r
	151	CPU_EXCHANGE_ROLE_INFO BSPInfo;\r
	152	CPU_EXCHANGE_ROLE_INFO APInfo;\r
	153	MTRR_SETTINGS MtrrTable;\r
	154	UINT8 ApLoopMode;\r
	155	UINT8 ApTargetCState;\r
	156	PEI_CPU_DATA *CpuData;\r
	157	volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo;\r
	158	};\r
	159	extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;\r
	160	\r
	161	\r
	162	/**\r
	163	Assembly code to get starting address and size of the rendezvous entry for APs.\r
	164	Information for fixing a jump instruction in the code is also returned.\r
	165	\r
	166	@param AddressMap Output buffer for address map information.\r
	167	**/\r
	168	VOID\r
	169	EFIAPI\r
	170	AsmGetAddressMap (\r
	171	OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap\r
	172	);\r
	173	\r
	174	/**\r
	175	Assembly code to load GDT table and update segment accordingly.\r
	176	\r
	177	@param Gdtr Pointer to GDT descriptor\r
	178	**/\r
	179	VOID\r
	180	EFIAPI\r
	181	AsmInitializeGdt (\r
	182	IN IA32_DESCRIPTOR *Gdtr\r
	183	);\r
	184	\r
	185	/**\r
	186	Get available system memory below 1MB by specified size.\r
	187	\r
	188	@param PeiCpuMpData Pointer to PEI CPU MP Data\r
	189	**/\r
	190	VOID\r
	191	BackupAndPrepareWakeupBuffer(\r
	192	IN PEI_CPU_MP_DATA *PeiCpuMpData\r
	193	);\r
	194	\r
	195	/**\r
	196	Restore wakeup buffer data.\r
	197	\r
	198	@param PeiCpuMpData Pointer to PEI CPU MP Data\r
	199	**/\r
	200	VOID\r
	201	RestoreWakeupBuffer(\r
	202	IN PEI_CPU_MP_DATA *PeiCpuMpData\r
	203	);\r
	204	\r
	205	/**\r
	206	Notify function on End Of Pei PPI.\r
	207	\r
	208	On S3 boot, this function will restore wakeup buffer data.\r
	209	On normal boot, this function will flag wakeup buffer to be un-used type.\r
	210	\r
	211	@param PeiServices The pointer to the PEI Services Table.\r
	212	@param NotifyDescriptor Address of the notification descriptor data structure.\r
	213	@param Ppi Address of the PPI that was installed.\r
	214	\r
	215	@retval EFI_SUCCESS When everything is OK.\r
	216	\r
	217	**/\r
	218	EFI_STATUS\r
	219	EFIAPI\r
	220	CpuMpEndOfPeiCallback (\r
	221	IN EFI_PEI_SERVICES **PeiServices,\r
	222	IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r
	223	IN VOID *Ppi\r
	224	);\r
	225	\r
	226	/**\r
	227	This function will be called by BSP to wakeup AP.\r
	228	\r
	229	@param PeiCpuMpData Pointer to PEI CPU MP Data\r
	230	@param Broadcast TRUE: Send broadcast IPI to all APs\r
	231	FALSE: Send IPI to AP by ApicId\r
	232	@param ProcessorNumber The handle number of specified processor\r
	233	@param Procedure The function to be invoked by AP\r
	234	@param ProcedureArgument The argument to be passed into AP function\r
	235	**/\r
	236	VOID\r
	237	WakeUpAP (\r
	238	IN PEI_CPU_MP_DATA *PeiCpuMpData,\r
	239	IN BOOLEAN Broadcast,\r
	240	IN UINTN ProcessorNumber,\r
	241	IN EFI_AP_PROCEDURE Procedure, OPTIONAL\r
	242	IN VOID *ProcedureArgument OPTIONAL\r
	243	);\r
	244	\r
	245	/**\r
	246	Get CPU MP Data pointer from the Guided HOB.\r
	247	\r
	248	@return Pointer to Pointer to PEI CPU MP Data\r
	249	**/\r
	250	PEI_CPU_MP_DATA *\r
	251	GetMpHobData (\r
	252	VOID\r
	253	);\r
	254	\r
	255	/**\r
	256	Find the current Processor number by APIC ID.\r
	257	\r
	258	@param PeiCpuMpData Pointer to PEI CPU MP Data\r
	259	@param ProcessorNumber Return the pocessor number found\r
	260	\r
	261	@retval EFI_SUCCESS ProcessorNumber is found and returned.\r
	262	@retval EFI_NOT_FOUND ProcessorNumber is not found.\r
	263	**/\r
	264	EFI_STATUS\r
	265	GetProcessorNumber (\r
	266	IN PEI_CPU_MP_DATA *PeiCpuMpData,\r
	267	OUT UINTN *ProcessorNumber\r
	268	);\r
	269	\r
	270	/**\r
	271	Collects BIST data from PPI.\r
	272	\r
	273	This function collects BIST data from Sec Platform Information2 PPI\r
	274	or SEC Platform Information PPI.\r
	275	\r
	276	@param PeiServices Pointer to PEI Services Table\r
	277	@param PeiCpuMpData Pointer to PEI CPU MP Data\r
	278	\r
	279	**/\r
	280	VOID\r
	281	CollectBistDataFromPpi (\r
	282	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	283	IN PEI_CPU_MP_DATA *PeiCpuMpData\r
	284	);\r
	285	\r
	286	/**\r
	287	Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.\r
	288	\r
	289	@param PeiServices The pointer to the PEI Services Table.\r
	290	@param StructureSize The pointer to the variable describing size of the input buffer.\r
	291	@param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.\r
	292	\r
	293	@retval EFI_SUCCESS The data was successfully returned.\r
	294	@retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to\r
	295	hold the record is returned in StructureSize.\r
	296	\r
	297	**/\r
	298	EFI_STATUS\r
	299	EFIAPI\r
	300	SecPlatformInformation2 (\r
	301	IN CONST EFI_PEI_SERVICES **PeiServices,\r
	302	IN OUT UINT64 *StructureSize,\r
	303	OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2\r
	304	);\r
	305	\r
	306	/**\r
	307	Detect whether specified processor can find matching microcode patch and load it.\r
	308	\r
	309	@param PeiCpuMpData Pointer to PEI CPU MP Data\r
	310	**/\r
	311	VOID\r
	312	MicrocodeDetect (\r
	313	IN PEI_CPU_MP_DATA *PeiCpuMpData\r
	314	);\r
	315	\r
	316	#endif\r