[mirror_edk2.git] / UefiCpuPkg / CpuS3DataDxe / CpuS3Data.c

/** @file\r
ACPI CPU Data initialization module\r
\r
This module initializes the ACPI_CPU_DATA structure and registers the address\r
of this structure in the PcdCpuS3DataAddress PCD.  This is a generic/simple\r
version of this module.  It does not provide a machine check handler or CPU\r
register initialization tables for ACPI S3 resume.  It also only supports the\r
number of CPUs reported by the MP Services Protocol, so this module does not\r
support hot plug CPUs.  This module can be copied into a CPU specific package\r
and customized if these additional features are required.\r
\r
Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>\r
Copyright (c) 2015, Red Hat, Inc.\r
\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
#include <PiDxe.h>\r
\r
#include <AcpiCpuData.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/MtrrLib.h>\r
\r
#include <Protocol/MpService.h>\r
#include <Guid/EventGroup.h>\r
\r
//\r
// Data structure used to allocate ACPI_CPU_DATA and its supporting structures\r
//\r
typedef struct {\r
  ACPI_CPU_DATA             AcpiCpuData;\r
  MTRR_SETTINGS             MtrrTable;\r
  IA32_DESCRIPTOR           GdtrProfile;\r
  IA32_DESCRIPTOR           IdtrProfile;\r
} ACPI_CPU_DATA_EX;\r
\r
/**\r
  Allocate EfiACPIMemoryNVS below 4G memory address.\r
\r
  This function allocates EfiACPIMemoryNVS below 4G memory address.\r
\r
  @param[in] Size   Size of memory to allocate.\r
\r
  @return       Allocated address for output.\r
\r
**/\r
VOID *\r
AllocateAcpiNvsMemoryBelow4G (\r
  IN UINTN  Size\r
  )\r
{\r
  EFI_PHYSICAL_ADDRESS  Address;\r
  EFI_STATUS            Status;\r
  VOID                  *Buffer;\r
\r
  Address = BASE_4GB - 1;\r
  Status  = gBS->AllocatePages (\r
                   AllocateMaxAddress,\r
                   EfiACPIMemoryNVS,\r
                   EFI_SIZE_TO_PAGES (Size),\r
                   &Address\r
                   );\r
  if (EFI_ERROR (Status)) {\r
    return NULL;\r
  }\r
\r
  Buffer = (VOID *)(UINTN)Address;\r
  ZeroMem (Buffer, Size);\r
\r
  return Buffer;\r
}\r
\r
/**\r
  Callback function executed when the EndOfDxe event group is signaled.\r
\r
  We delay allocating StartupVector and saving the MTRR settings until BDS signals EndOfDxe.\r
\r
  @param[in]  Event    Event whose notification function is being invoked.\r
  @param[out] Context  Pointer to the MTRR_SETTINGS buffer to fill in.\r
**/\r
VOID\r
EFIAPI\r
CpuS3DataOnEndOfDxe (\r
  IN  EFI_EVENT  Event,\r
  OUT VOID       *Context\r
  )\r
{\r
  EFI_STATUS         Status;\r
  ACPI_CPU_DATA_EX   *AcpiCpuDataEx;\r
\r
  AcpiCpuDataEx = (ACPI_CPU_DATA_EX *) Context;\r
  //\r
  // Allocate a 4KB reserved page below 1MB\r
  //\r
  AcpiCpuDataEx->AcpiCpuData.StartupVector = BASE_1MB - 1;\r
  Status = gBS->AllocatePages (\r
                  AllocateMaxAddress,\r
                  EfiReservedMemoryType,\r
                  1,\r
                  &AcpiCpuDataEx->AcpiCpuData.StartupVector\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  DEBUG ((EFI_D_VERBOSE, "%a\n", __FUNCTION__));\r
  MtrrGetAllMtrrs (&AcpiCpuDataEx->MtrrTable);\r
\r
  //\r
  // Close event, so it will not be invoked again.\r
  //\r
  gBS->CloseEvent (Event);\r
}\r
\r
/**\r
   The entry function of the CpuS3Data driver.\r
\r
   Allocate and initialize all fields of the ACPI_CPU_DATA structure except the\r
   MTRR settings.  Register an event notification on gEfiEndOfDxeEventGroupGuid\r
   to capture the ACPI_CPU_DATA MTRR settings.  The PcdCpuS3DataAddress is set\r
   to the address that ACPI_CPU_DATA is allocated at.\r
\r
   @param[in] ImageHandle  The firmware allocated handle for the EFI image.\r
   @param[in] SystemTable  A pointer to the EFI System Table.\r
\r
   @retval EFI_SUCCESS     The entry point is executed successfully.\r
   @retval other           Some error occurs when executing this entry point.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
CpuS3DataInitialize (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  EFI_STATUS                 Status;\r
  ACPI_CPU_DATA_EX           *AcpiCpuDataEx;\r
  ACPI_CPU_DATA              *AcpiCpuData;\r
  EFI_MP_SERVICES_PROTOCOL   *MpServices;\r
  UINTN                      NumberOfCpus;\r
  UINTN                      NumberOfEnabledProcessors;\r
  VOID                       *Stack;\r
  UINTN                      TableSize;\r
  CPU_REGISTER_TABLE         *RegisterTable;\r
  UINTN                      Index;\r
  EFI_PROCESSOR_INFORMATION  ProcessorInfoBuffer;\r
  UINTN                      GdtSize;\r
  UINTN                      IdtSize;\r
  VOID                       *Gdt;\r
  VOID                       *Idt;\r
  EFI_EVENT                  Event;\r
\r
  //\r
  // Allocate ACPI NVS memory below 4G memory for use on ACPI S3 resume.\r
  //\r
  AcpiCpuDataEx = AllocateAcpiNvsMemoryBelow4G (sizeof (ACPI_CPU_DATA_EX));\r
  ASSERT (AcpiCpuDataEx != NULL);\r
  AcpiCpuData = &AcpiCpuDataEx->AcpiCpuData;\r
\r
  //\r
  // Get MP Services Protocol\r
  //\r
  Status = gBS->LocateProtocol (\r
                  &gEfiMpServiceProtocolGuid,\r
                  NULL,\r
                  (VOID **)&MpServices\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Get the number of CPUs\r
  //\r
  Status = MpServices->GetNumberOfProcessors (\r
                         MpServices,\r
                         &NumberOfCpus,\r
                         &NumberOfEnabledProcessors\r
                         );\r
  ASSERT_EFI_ERROR (Status);\r
  AcpiCpuData->NumberOfCpus = (UINT32)NumberOfCpus;\r
\r
  //\r
  // Initialize ACPI_CPU_DATA fields\r
  //\r
  AcpiCpuData->StackSize                 = PcdGet32 (PcdCpuApStackSize);\r
  AcpiCpuData->ApMachineCheckHandlerBase = 0;\r
  AcpiCpuData->ApMachineCheckHandlerSize = 0;\r
  AcpiCpuData->GdtrProfile  = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->GdtrProfile;\r
  AcpiCpuData->IdtrProfile  = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->IdtrProfile;\r
  AcpiCpuData->MtrrTable    = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->MtrrTable;\r
\r
  //\r
  // Allocate stack space for all CPUs\r
  //\r
  Stack = AllocateAcpiNvsMemoryBelow4G (NumberOfCpus * AcpiCpuData->StackSize);\r
  ASSERT (Stack != NULL);\r
  AcpiCpuData->StackAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Stack;\r
\r
  //\r
  // Get the boot processor's GDT and IDT\r
  //\r
  AsmReadGdtr (&AcpiCpuDataEx->GdtrProfile);\r
  AsmReadIdtr (&AcpiCpuDataEx->IdtrProfile);\r
\r
  //\r
  // Allocate GDT and IDT in ACPI NVS and copy current GDT and IDT contents\r
  //\r
  GdtSize = AcpiCpuDataEx->GdtrProfile.Limit + 1;\r
  IdtSize = AcpiCpuDataEx->IdtrProfile.Limit + 1;\r
  Gdt = AllocateAcpiNvsMemoryBelow4G (GdtSize + IdtSize);\r
  ASSERT (Gdt != NULL);\r
  Idt = (VOID *)((UINTN)Gdt + GdtSize);\r
  CopyMem (Gdt, (VOID *)AcpiCpuDataEx->GdtrProfile.Base, GdtSize);\r
  CopyMem (Idt, (VOID *)AcpiCpuDataEx->IdtrProfile.Base, IdtSize);\r
  AcpiCpuDataEx->GdtrProfile.Base = (UINTN)Gdt;\r
  AcpiCpuDataEx->IdtrProfile.Base = (UINTN)Idt;\r
\r
  //\r
  // Allocate buffer for empty RegisterTable and PreSmmInitRegisterTable for all CPUs\r
  //\r
  TableSize = 2 * NumberOfCpus * sizeof (CPU_REGISTER_TABLE);\r
  RegisterTable = (CPU_REGISTER_TABLE *)AllocateAcpiNvsMemoryBelow4G (TableSize);\r
  ASSERT (RegisterTable != NULL);\r
  for (Index = 0; Index < NumberOfCpus; Index++) {\r
    Status = MpServices->GetProcessorInfo (\r
                           MpServices,\r
                           Index,\r
                           &ProcessorInfoBuffer\r
                           );\r
    ASSERT_EFI_ERROR (Status);\r
\r
    RegisterTable[Index].InitialApicId      = (UINT32)ProcessorInfoBuffer.ProcessorId;\r
    RegisterTable[Index].TableLength        = 0;\r
    RegisterTable[Index].AllocatedSize      = 0;\r
    RegisterTable[Index].RegisterTableEntry = NULL;\r
\r
    RegisterTable[NumberOfCpus + Index].InitialApicId      = (UINT32)ProcessorInfoBuffer.ProcessorId;\r
    RegisterTable[NumberOfCpus + Index].TableLength        = 0;\r
    RegisterTable[NumberOfCpus + Index].AllocatedSize      = 0;\r
    RegisterTable[NumberOfCpus + Index].RegisterTableEntry = NULL;\r
  }\r
  AcpiCpuData->RegisterTable           = (EFI_PHYSICAL_ADDRESS)(UINTN)RegisterTable;\r
  AcpiCpuData->PreSmmInitRegisterTable = (EFI_PHYSICAL_ADDRESS)(UINTN)(RegisterTable + NumberOfCpus);\r
\r
  //\r
  // Set PcdCpuS3DataAddress to the base address of the ACPI_CPU_DATA structure\r
  //\r
  Status = PcdSet64S (PcdCpuS3DataAddress, (UINT64)(UINTN)AcpiCpuData);\r
  ASSERT_EFI_ERROR (Status);\r
\r
  //\r
  // Register EFI_END_OF_DXE_EVENT_GROUP_GUID event.\r
  // The notification function allocates StartupVector and saves MTRRs for ACPI_CPU_DATA\r
  //\r
  Status = gBS->CreateEventEx (\r
                  EVT_NOTIFY_SIGNAL,\r
                  TPL_CALLBACK,\r
                  CpuS3DataOnEndOfDxe,\r
                  AcpiCpuData,\r
                  &gEfiEndOfDxeEventGroupGuid,\r
                  &Event\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return EFI_SUCCESS;\r
}\r
Commit	Line	Data
bfec5efa MK	1	/** @file\r
	2	ACPI CPU Data initialization module\r
	3	\r
	4	This module initializes the ACPI_CPU_DATA structure and registers the address\r
	5	of this structure in the PcdCpuS3DataAddress PCD. This is a generic/simple\r
	6	version of this module. It does not provide a machine check handler or CPU\r
	7	register initialization tables for ACPI S3 resume. It also only supports the\r
	8	number of CPUs reported by the MP Services Protocol, so this module does not\r
	9	support hot plug CPUs. This module can be copied into a CPU specific package\r
	10	and customized if these additional features are required.\r
	11	\r
65b24ada	12	Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>\r
bfec5efa MK	13	Copyright (c) 2015, Red Hat, Inc.\r
	14	\r
	15	This program and the accompanying materials\r
	16	are licensed and made available under the terms and conditions of the BSD License\r
	17	which accompanies this distribution. The full text of the license may be found at\r
	18	http://opensource.org/licenses/bsd-license.php\r
	19	\r
	20	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	21	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	22	\r
	23	**/\r
	24	\r
	25	#include <PiDxe.h>\r
	26	\r
	27	#include <AcpiCpuData.h>\r
	28	\r
	29	#include <Library/BaseLib.h>\r
	30	#include <Library/BaseMemoryLib.h>\r
	31	#include <Library/UefiBootServicesTableLib.h>\r
	32	#include <Library/DebugLib.h>\r
	33	#include <Library/MtrrLib.h>\r
	34	\r
	35	#include <Protocol/MpService.h>\r
	36	#include <Guid/EventGroup.h>\r
	37	\r
	38	//\r
	39	// Data structure used to allocate ACPI_CPU_DATA and its supporting structures\r
	40	//\r
	41	typedef struct {\r
	42	ACPI_CPU_DATA AcpiCpuData;\r
	43	MTRR_SETTINGS MtrrTable;\r
	44	IA32_DESCRIPTOR GdtrProfile;\r
	45	IA32_DESCRIPTOR IdtrProfile;\r
	46	} ACPI_CPU_DATA_EX;\r
	47	\r
	48	/**\r
	49	Allocate EfiACPIMemoryNVS below 4G memory address.\r
	50	\r
	51	This function allocates EfiACPIMemoryNVS below 4G memory address.\r
	52	\r
	53	@param[in] Size Size of memory to allocate.\r
	54	\r
	55	@return Allocated address for output.\r
	56	\r
	57	**/\r
	58	VOID *\r
	59	AllocateAcpiNvsMemoryBelow4G (\r
	60	IN UINTN Size\r
	61	)\r
	62	{\r
	63	EFI_PHYSICAL_ADDRESS Address;\r
	64	EFI_STATUS Status;\r
	65	VOID *Buffer;\r
	66	\r
	67	Address = BASE_4GB - 1;\r
	68	Status = gBS->AllocatePages (\r
	69	AllocateMaxAddress,\r
	70	EfiACPIMemoryNVS,\r
	71	EFI_SIZE_TO_PAGES (Size),\r
	72	&Address\r
	73	);\r
	74	if (EFI_ERROR (Status)) {\r
	75	return NULL;\r
	76	}\r
77	\r
78	Buffer = (VOID *)(UINTN)Address;\r
79	ZeroMem (Buffer, Size);\r
80	\r
81	return Buffer;\r
82	}\r
83	\r
84	/**\r
85	Callback function executed when the EndOfDxe event group is signaled.\r
86	\r
65b24ada	87	We delay allocating StartupVector and saving the MTRR settings until BDS signals EndOfDxe.\r
bfec5efa MK	88	\r
	89	@param[in] Event Event whose notification function is being invoked.\r
	90	@param[out] Context Pointer to the MTRR_SETTINGS buffer to fill in.\r
	91	**/\r
	92	VOID\r
	93	EFIAPI\r
65b24ada	94	CpuS3DataOnEndOfDxe (\r
bfec5efa MK	95	IN EFI_EVENT Event,\r
	96	OUT VOID *Context\r
	97	)\r
	98	{\r
65b24ada JF	99	EFI_STATUS Status;\r
	100	ACPI_CPU_DATA_EX *AcpiCpuDataEx;\r
	101	\r
	102	AcpiCpuDataEx = (ACPI_CPU_DATA_EX *) Context;\r
	103	//\r
	104	// Allocate a 4KB reserved page below 1MB\r
	105	//\r
	106	AcpiCpuDataEx->AcpiCpuData.StartupVector = BASE_1MB - 1;\r
	107	Status = gBS->AllocatePages (\r
	108	AllocateMaxAddress,\r
	109	EfiReservedMemoryType,\r
	110	1,\r
	111	&AcpiCpuDataEx->AcpiCpuData.StartupVector\r
	112	);\r
	113	ASSERT_EFI_ERROR (Status);\r
	114	\r
bfec5efa	115	DEBUG ((EFI_D_VERBOSE, "%a\n", __FUNCTION__));\r
65b24ada	116	MtrrGetAllMtrrs (&AcpiCpuDataEx->MtrrTable);\r
bfec5efa MK	117	\r
	118	//\r
	119	// Close event, so it will not be invoked again.\r
	120	//\r
	121	gBS->CloseEvent (Event);\r
	122	}\r
	123	\r
	124	/**\r
	125	The entry function of the CpuS3Data driver.\r
	126	\r
	127	Allocate and initialize all fields of the ACPI_CPU_DATA structure except the\r
	128	MTRR settings. Register an event notification on gEfiEndOfDxeEventGroupGuid\r
	129	to capture the ACPI_CPU_DATA MTRR settings. The PcdCpuS3DataAddress is set\r
	130	to the address that ACPI_CPU_DATA is allocated at.\r
	131	\r
	132	@param[in] ImageHandle The firmware allocated handle for the EFI image.\r
	133	@param[in] SystemTable A pointer to the EFI System Table.\r
	134	\r
	135	@retval EFI_SUCCESS The entry point is executed successfully.\r
	136	@retval other Some error occurs when executing this entry point.\r
	137	\r
	138	**/\r
	139	EFI_STATUS\r
	140	EFIAPI\r
	141	CpuS3DataInitialize (\r
	142	IN EFI_HANDLE ImageHandle,\r
	143	IN EFI_SYSTEM_TABLE *SystemTable\r
	144	)\r
	145	{\r
	146	EFI_STATUS Status;\r
	147	ACPI_CPU_DATA_EX *AcpiCpuDataEx;\r
	148	ACPI_CPU_DATA *AcpiCpuData;\r
	149	EFI_MP_SERVICES_PROTOCOL *MpServices;\r
	150	UINTN NumberOfCpus;\r
	151	UINTN NumberOfEnabledProcessors;\r
	152	VOID *Stack;\r
	153	UINTN TableSize;\r
	154	CPU_REGISTER_TABLE *RegisterTable;\r
	155	UINTN Index;\r
	156	EFI_PROCESSOR_INFORMATION ProcessorInfoBuffer;\r
	157	UINTN GdtSize;\r
	158	UINTN IdtSize;\r
	159	VOID *Gdt;\r
	160	VOID *Idt;\r
	161	EFI_EVENT Event;\r
	162	\r
	163	//\r
	164	// Allocate ACPI NVS memory below 4G memory for use on ACPI S3 resume.\r
	165	//\r
	166	AcpiCpuDataEx = AllocateAcpiNvsMemoryBelow4G (sizeof (ACPI_CPU_DATA_EX));\r
	167	ASSERT (AcpiCpuDataEx != NULL);\r
	168	AcpiCpuData = &AcpiCpuDataEx->AcpiCpuData;\r
	169	\r
	170	//\r
	171	// Get MP Services Protocol\r
	172	//\r
	173	Status = gBS->LocateProtocol (\r
	174	&gEfiMpServiceProtocolGuid,\r
	175	NULL,\r
	176	(VOID **)&MpServices\r
	177	);\r
	178	ASSERT_EFI_ERROR (Status);\r
	179	\r
bfec5efa MK	180	//\r
	181	// Get the number of CPUs\r
	182	//\r
	183	Status = MpServices->GetNumberOfProcessors (\r
	184	MpServices,\r
	185	&NumberOfCpus,\r
	186	&NumberOfEnabledProcessors\r
	187	);\r
	188	ASSERT_EFI_ERROR (Status);\r
	189	AcpiCpuData->NumberOfCpus = (UINT32)NumberOfCpus;\r
	190	\r
	191	//\r
	192	// Initialize ACPI_CPU_DATA fields\r
	193	//\r
	194	AcpiCpuData->StackSize = PcdGet32 (PcdCpuApStackSize);\r
	195	AcpiCpuData->ApMachineCheckHandlerBase = 0;\r
	196	AcpiCpuData->ApMachineCheckHandlerSize = 0;\r
	197	AcpiCpuData->GdtrProfile = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->GdtrProfile;\r
	198	AcpiCpuData->IdtrProfile = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->IdtrProfile;\r
	199	AcpiCpuData->MtrrTable = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->MtrrTable;\r
	200	\r
	201	//\r
	202	// Allocate stack space for all CPUs\r
	203	//\r
	204	Stack = AllocateAcpiNvsMemoryBelow4G (NumberOfCpus * AcpiCpuData->StackSize);\r
	205	ASSERT (Stack != NULL);\r
	206	AcpiCpuData->StackAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Stack;\r
	207	\r
	208	//\r
	209	// Get the boot processor's GDT and IDT\r
	210	//\r
	211	AsmReadGdtr (&AcpiCpuDataEx->GdtrProfile);\r
	212	AsmReadIdtr (&AcpiCpuDataEx->IdtrProfile);\r
	213	\r
	214	//\r
	215	// Allocate GDT and IDT in ACPI NVS and copy current GDT and IDT contents\r
	216	//\r
	217	GdtSize = AcpiCpuDataEx->GdtrProfile.Limit + 1;\r
	218	IdtSize = AcpiCpuDataEx->IdtrProfile.Limit + 1;\r
	219	Gdt = AllocateAcpiNvsMemoryBelow4G (GdtSize + IdtSize);\r
	220	ASSERT (Gdt != NULL);\r
	221	Idt = (VOID *)((UINTN)Gdt + GdtSize);\r
	222	CopyMem (Gdt, (VOID *)AcpiCpuDataEx->GdtrProfile.Base, GdtSize);\r
	223	CopyMem (Idt, (VOID *)AcpiCpuDataEx->IdtrProfile.Base, IdtSize);\r
	224	AcpiCpuDataEx->GdtrProfile.Base = (UINTN)Gdt;\r
	225	AcpiCpuDataEx->IdtrProfile.Base = (UINTN)Idt;\r
	226	\r
	227	//\r
	228	// Allocate buffer for empty RegisterTable and PreSmmInitRegisterTable for all CPUs\r
	229	//\r
	230	TableSize = 2 * NumberOfCpus * sizeof (CPU_REGISTER_TABLE);\r
	231	RegisterTable = (CPU_REGISTER_TABLE *)AllocateAcpiNvsMemoryBelow4G (TableSize);\r
	232	ASSERT (RegisterTable != NULL);\r
	233	for (Index = 0; Index < NumberOfCpus; Index++) {\r
	234	Status = MpServices->GetProcessorInfo (\r
	235	MpServices,\r
	236	Index,\r
	237	&ProcessorInfoBuffer\r
	238	);\r
	239	ASSERT_EFI_ERROR (Status);\r
	240	\r
	241	RegisterTable[Index].InitialApicId = (UINT32)ProcessorInfoBuffer.ProcessorId;\r
	242	RegisterTable[Index].TableLength = 0;\r
	243	RegisterTable[Index].AllocatedSize = 0;\r
244	RegisterTable[Index].RegisterTableEntry = NULL;\r
245	\r
246	RegisterTable[NumberOfCpus + Index].InitialApicId = (UINT32)ProcessorInfoBuffer.ProcessorId;\r
247	RegisterTable[NumberOfCpus + Index].TableLength = 0;\r
248	RegisterTable[NumberOfCpus + Index].AllocatedSize = 0;\r
249	RegisterTable[NumberOfCpus + Index].RegisterTableEntry = NULL;\r
250	}\r
251	AcpiCpuData->RegisterTable = (EFI_PHYSICAL_ADDRESS)(UINTN)RegisterTable;\r
252	AcpiCpuData->PreSmmInitRegisterTable = (EFI_PHYSICAL_ADDRESS)(UINTN)(RegisterTable + NumberOfCpus);\r
253	\r
254	//\r
255	// Set PcdCpuS3DataAddress to the base address of the ACPI_CPU_DATA structure\r
256	//\r
257	Status = PcdSet64S (PcdCpuS3DataAddress, (UINT64)(UINTN)AcpiCpuData);\r
258	ASSERT_EFI_ERROR (Status);\r
259	\r
260	//\r
261	// Register EFI_END_OF_DXE_EVENT_GROUP_GUID event.\r
65b24ada	262	// The notification function allocates StartupVector and saves MTRRs for ACPI_CPU_DATA\r
bfec5efa MK	263	//\r
	264	Status = gBS->CreateEventEx (\r
	265	EVT_NOTIFY_SIGNAL,\r
	266	TPL_CALLBACK,\r
65b24ada JF	267	CpuS3DataOnEndOfDxe,\r
65b24ada JF	268	AcpiCpuData,\r
bfec5efa MK	269	&gEfiEndOfDxeEventGroupGuid,\r
	270	&Event\r
	271	);\r
	272	ASSERT_EFI_ERROR (Status);\r
	273	\r
	274	return EFI_SUCCESS;\r
	275	}\r