[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 - 2017, Intel Corporation. All rights reserved.<BR>\r
Copyright (c) 2015, Red Hat, Inc.\r
\r
SPDX-License-Identifier: BSD-2-Clause-Patent\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
#include <Library/MemoryAllocationLib.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 memory.\r
\r
  @param[in] Size   Size of memory to allocate.\r
\r
  @return       Allocated address for output.\r
\r
**/\r
VOID *\r
AllocateAcpiNvsMemory (\r
  IN UINTN  Size\r
  )\r
{\r
  EFI_PHYSICAL_ADDRESS  Address;\r
  EFI_STATUS            Status;\r
  VOID                  *Buffer;\r
\r
  Status  = gBS->AllocatePages (\r
                   AllocateAnyPages,\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
  Allocate memory and clean it with zero.\r
\r
  @param[in] Size   Size of memory to allocate.\r
\r
  @return       Allocated address for output.\r
\r
**/\r
VOID *\r
AllocateZeroPages (\r
  IN UINTN  Size\r
  )\r
{\r
  VOID                  *Buffer;\r
\r
  Buffer = AllocatePages (EFI_SIZE_TO_PAGES (Size));\r
  if (Buffer != NULL) {\r
    ZeroMem (Buffer, Size);\r
  }\r
\r
  return Buffer;\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 EFI_UNSUPPORTED Do not support ACPI S3.\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                      GdtSize;\r
  UINTN                      IdtSize;\r
  VOID                       *Gdt;\r
  VOID                       *Idt;\r
  EFI_EVENT                  Event;\r
  ACPI_CPU_DATA              *OldAcpiCpuData;\r
\r
  if (!PcdGetBool (PcdAcpiS3Enable)) {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  //\r
  // Set PcdCpuS3DataAddress to the base address of the ACPI_CPU_DATA structure\r
  //\r
  OldAcpiCpuData = (ACPI_CPU_DATA *) (UINTN) PcdGet64 (PcdCpuS3DataAddress);\r
\r
  AcpiCpuDataEx = AllocateZeroPages (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
  // Use ACPI NVS memory type because this data will be directly used by APs\r
  // in S3 resume phase in long mode. Also during S3 resume, the stack buffer\r
  // will only be used as scratch space. i.e. we won't read anything from it\r
  // before we write to it, in PiSmmCpuDxeSmm.\r
  //\r
  Stack = AllocateAcpiNvsMemory (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 and copy current GDT and IDT contents\r
  //\r
  GdtSize = AcpiCpuDataEx->GdtrProfile.Limit + 1;\r
  IdtSize = AcpiCpuDataEx->IdtrProfile.Limit + 1;\r
  Gdt = AllocateZeroPages (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
  if (OldAcpiCpuData != NULL) {\r
    AcpiCpuData->RegisterTable           = OldAcpiCpuData->RegisterTable;\r
    AcpiCpuData->PreSmmInitRegisterTable = OldAcpiCpuData->PreSmmInitRegisterTable;\r
    AcpiCpuData->ApLocation              = OldAcpiCpuData->ApLocation;\r
    CopyMem (&AcpiCpuData->CpuStatus, &OldAcpiCpuData->CpuStatus, sizeof (CPU_STATUS_INFORMATION));\r
  }\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
9cc45009	12	Copyright (c) 2013 - 2017, Intel Corporation. All rights reserved.<BR>\r
bfec5efa MK	13	Copyright (c) 2015, Red Hat, Inc.\r
bfec5efa MK	14	\r
0acd8697	15	SPDX-License-Identifier: BSD-2-Clause-Patent\r
bfec5efa MK	16	\r
	17	**/\r
	18	\r
	19	#include <PiDxe.h>\r
	20	\r
	21	#include <AcpiCpuData.h>\r
	22	\r
	23	#include <Library/BaseLib.h>\r
	24	#include <Library/BaseMemoryLib.h>\r
	25	#include <Library/UefiBootServicesTableLib.h>\r
	26	#include <Library/DebugLib.h>\r
	27	#include <Library/MtrrLib.h>\r
b5817210	28	#include <Library/MemoryAllocationLib.h>\r
bfec5efa MK	29	\r
	30	#include <Protocol/MpService.h>\r
	31	#include <Guid/EventGroup.h>\r
	32	\r
	33	//\r
	34	// Data structure used to allocate ACPI_CPU_DATA and its supporting structures\r
	35	//\r
	36	typedef struct {\r
	37	ACPI_CPU_DATA AcpiCpuData;\r
	38	MTRR_SETTINGS MtrrTable;\r
	39	IA32_DESCRIPTOR GdtrProfile;\r
	40	IA32_DESCRIPTOR IdtrProfile;\r
	41	} ACPI_CPU_DATA_EX;\r
	42	\r
	43	/**\r
6eab8b43	44	Allocate EfiACPIMemoryNVS memory.\r
bfec5efa MK	45	\r
	46	@param[in] Size Size of memory to allocate.\r
	47	\r
	48	@return Allocated address for output.\r
	49	\r
	50	**/\r
	51	VOID *\r
6eab8b43	52	AllocateAcpiNvsMemory (\r
bfec5efa MK	53	IN UINTN Size\r
	54	)\r
	55	{\r
	56	EFI_PHYSICAL_ADDRESS Address;\r
	57	EFI_STATUS Status;\r
	58	VOID *Buffer;\r
	59	\r
bfec5efa	60	Status = gBS->AllocatePages (\r
6eab8b43	61	AllocateAnyPages,\r
bfec5efa MK	62	EfiACPIMemoryNVS,\r
	63	EFI_SIZE_TO_PAGES (Size),\r
	64	&Address\r
	65	);\r
	66	if (EFI_ERROR (Status)) {\r
	67	return NULL;\r
	68	}\r
	69	\r
	70	Buffer = (VOID *)(UINTN)Address;\r
	71	ZeroMem (Buffer, Size);\r
	72	\r
	73	return Buffer;\r
	74	}\r
	75	\r
b5817210 ED	76	/**\r
	77	Allocate memory and clean it with zero.\r
	78	\r
	79	@param[in] Size Size of memory to allocate.\r
	80	\r
	81	@return Allocated address for output.\r
	82	\r
	83	**/\r
	84	VOID *\r
	85	AllocateZeroPages (\r
	86	IN UINTN Size\r
	87	)\r
	88	{\r
	89	VOID *Buffer;\r
	90	\r
	91	Buffer = AllocatePages (EFI_SIZE_TO_PAGES (Size));\r
	92	if (Buffer != NULL) {\r
	93	ZeroMem (Buffer, Size);\r
	94	}\r
	95	\r
	96	return Buffer;\r
	97	}\r
bfec5efa MK	98	/**\r
	99	Callback function executed when the EndOfDxe event group is signaled.\r
	100	\r
65b24ada	101	We delay allocating StartupVector and saving the MTRR settings until BDS signals EndOfDxe.\r
bfec5efa MK	102	\r
	103	@param[in] Event Event whose notification function is being invoked.\r
	104	@param[out] Context Pointer to the MTRR_SETTINGS buffer to fill in.\r
	105	**/\r
	106	VOID\r
	107	EFIAPI\r
65b24ada	108	CpuS3DataOnEndOfDxe (\r
bfec5efa MK	109	IN EFI_EVENT Event,\r
	110	OUT VOID *Context\r
	111	)\r
	112	{\r
65b24ada JF	113	EFI_STATUS Status;\r
	114	ACPI_CPU_DATA_EX *AcpiCpuDataEx;\r
	115	\r
	116	AcpiCpuDataEx = (ACPI_CPU_DATA_EX *) Context;\r
	117	//\r
	118	// Allocate a 4KB reserved page below 1MB\r
	119	//\r
	120	AcpiCpuDataEx->AcpiCpuData.StartupVector = BASE_1MB - 1;\r
	121	Status = gBS->AllocatePages (\r
	122	AllocateMaxAddress,\r
	123	EfiReservedMemoryType,\r
	124	1,\r
	125	&AcpiCpuDataEx->AcpiCpuData.StartupVector\r
	126	);\r
	127	ASSERT_EFI_ERROR (Status);\r
	128	\r
bfec5efa	129	DEBUG ((EFI_D_VERBOSE, "%a\n", __FUNCTION__));\r
65b24ada	130	MtrrGetAllMtrrs (&AcpiCpuDataEx->MtrrTable);\r
bfec5efa MK	131	\r
	132	//\r
	133	// Close event, so it will not be invoked again.\r
	134	//\r
	135	gBS->CloseEvent (Event);\r
	136	}\r
	137	\r
	138	/**\r
	139	The entry function of the CpuS3Data driver.\r
	140	\r
	141	Allocate and initialize all fields of the ACPI_CPU_DATA structure except the\r
	142	MTRR settings. Register an event notification on gEfiEndOfDxeEventGroupGuid\r
	143	to capture the ACPI_CPU_DATA MTRR settings. The PcdCpuS3DataAddress is set\r
	144	to the address that ACPI_CPU_DATA is allocated at.\r
	145	\r
	146	@param[in] ImageHandle The firmware allocated handle for the EFI image.\r
	147	@param[in] SystemTable A pointer to the EFI System Table.\r
	148	\r
	149	@retval EFI_SUCCESS The entry point is executed successfully.\r
ca98f603	150	@retval EFI_UNSUPPORTED Do not support ACPI S3.\r
bfec5efa MK	151	@retval other Some error occurs when executing this entry point.\r
	152	\r
	153	**/\r
	154	EFI_STATUS\r
	155	EFIAPI\r
	156	CpuS3DataInitialize (\r
	157	IN EFI_HANDLE ImageHandle,\r
	158	IN EFI_SYSTEM_TABLE *SystemTable\r
	159	)\r
	160	{\r
	161	EFI_STATUS Status;\r
	162	ACPI_CPU_DATA_EX *AcpiCpuDataEx;\r
	163	ACPI_CPU_DATA *AcpiCpuData;\r
	164	EFI_MP_SERVICES_PROTOCOL *MpServices;\r
	165	UINTN NumberOfCpus;\r
	166	UINTN NumberOfEnabledProcessors;\r
	167	VOID *Stack;\r
bfec5efa MK	168	UINTN GdtSize;\r
	169	UINTN IdtSize;\r
	170	VOID *Gdt;\r
	171	VOID *Idt;\r
	172	EFI_EVENT Event;\r
8b371e93	173	ACPI_CPU_DATA *OldAcpiCpuData;\r
bfec5efa	174	\r
ca98f603 SZ	175	if (!PcdGetBool (PcdAcpiS3Enable)) {\r
	176	return EFI_UNSUPPORTED;\r
	177	}\r
	178	\r
8b371e93 JF	179	//\r
	180	// Set PcdCpuS3DataAddress to the base address of the ACPI_CPU_DATA structure\r
	181	//\r
	182	OldAcpiCpuData = (ACPI_CPU_DATA *) (UINTN) PcdGet64 (PcdCpuS3DataAddress);\r
	183	\r
b5817210	184	AcpiCpuDataEx = AllocateZeroPages (sizeof (ACPI_CPU_DATA_EX));\r
bfec5efa MK	185	ASSERT (AcpiCpuDataEx != NULL);\r
	186	AcpiCpuData = &AcpiCpuDataEx->AcpiCpuData;\r
	187	\r
	188	//\r
	189	// Get MP Services Protocol\r
	190	//\r
	191	Status = gBS->LocateProtocol (\r
	192	&gEfiMpServiceProtocolGuid,\r
	193	NULL,\r
	194	(VOID **)&MpServices\r
	195	);\r
	196	ASSERT_EFI_ERROR (Status);\r
	197	\r
bfec5efa MK	198	//\r
	199	// Get the number of CPUs\r
	200	//\r
	201	Status = MpServices->GetNumberOfProcessors (\r
	202	MpServices,\r
	203	&NumberOfCpus,\r
	204	&NumberOfEnabledProcessors\r
	205	);\r
	206	ASSERT_EFI_ERROR (Status);\r
	207	AcpiCpuData->NumberOfCpus = (UINT32)NumberOfCpus;\r
	208	\r
	209	//\r
	210	// Initialize ACPI_CPU_DATA fields\r
	211	//\r
	212	AcpiCpuData->StackSize = PcdGet32 (PcdCpuApStackSize);\r
	213	AcpiCpuData->ApMachineCheckHandlerBase = 0;\r
	214	AcpiCpuData->ApMachineCheckHandlerSize = 0;\r
	215	AcpiCpuData->GdtrProfile = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->GdtrProfile;\r
	216	AcpiCpuData->IdtrProfile = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->IdtrProfile;\r
	217	AcpiCpuData->MtrrTable = (EFI_PHYSICAL_ADDRESS)(UINTN)&AcpiCpuDataEx->MtrrTable;\r
	218	\r
	219	//\r
6eab8b43 ED	220	// Allocate stack space for all CPUs.\r
	221	// Use ACPI NVS memory type because this data will be directly used by APs\r
	222	// in S3 resume phase in long mode. Also during S3 resume, the stack buffer\r
	223	// will only be used as scratch space. i.e. we won't read anything from it\r
	224	// before we write to it, in PiSmmCpuDxeSmm.\r
bfec5efa	225	//\r
6eab8b43	226	Stack = AllocateAcpiNvsMemory (NumberOfCpus * AcpiCpuData->StackSize);\r
bfec5efa MK	227	ASSERT (Stack != NULL);\r
	228	AcpiCpuData->StackAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Stack;\r
	229	\r
	230	//\r
	231	// Get the boot processor's GDT and IDT\r
	232	//\r
	233	AsmReadGdtr (&AcpiCpuDataEx->GdtrProfile);\r
	234	AsmReadIdtr (&AcpiCpuDataEx->IdtrProfile);\r
	235	\r
	236	//\r
b5817210	237	// Allocate GDT and IDT and copy current GDT and IDT contents\r
bfec5efa MK	238	//\r
	239	GdtSize = AcpiCpuDataEx->GdtrProfile.Limit + 1;\r
	240	IdtSize = AcpiCpuDataEx->IdtrProfile.Limit + 1;\r
b5817210	241	Gdt = AllocateZeroPages (GdtSize + IdtSize);\r
bfec5efa MK	242	ASSERT (Gdt != NULL);\r
	243	Idt = (VOID *)((UINTN)Gdt + GdtSize);\r
	244	CopyMem (Gdt, (VOID *)AcpiCpuDataEx->GdtrProfile.Base, GdtSize);\r
	245	CopyMem (Idt, (VOID *)AcpiCpuDataEx->IdtrProfile.Base, IdtSize);\r
	246	AcpiCpuDataEx->GdtrProfile.Base = (UINTN)Gdt;\r
	247	AcpiCpuDataEx->IdtrProfile.Base = (UINTN)Idt;\r
	248	\r
8b371e93 JF	249	if (OldAcpiCpuData != NULL) {\r
	250	AcpiCpuData->RegisterTable = OldAcpiCpuData->RegisterTable;\r
	251	AcpiCpuData->PreSmmInitRegisterTable = OldAcpiCpuData->PreSmmInitRegisterTable;\r
38381e18 ED	252	AcpiCpuData->ApLocation = OldAcpiCpuData->ApLocation;\r
38381e18 ED	253	CopyMem (&AcpiCpuData->CpuStatus, &OldAcpiCpuData->CpuStatus, sizeof (CPU_STATUS_INFORMATION));\r
bfec5efa	254	}\r
bfec5efa MK	255	\r
	256	//\r
	257	// Set PcdCpuS3DataAddress to the base address of the ACPI_CPU_DATA structure\r
	258	//\r
	259	Status = PcdSet64S (PcdCpuS3DataAddress, (UINT64)(UINTN)AcpiCpuData);\r
	260	ASSERT_EFI_ERROR (Status);\r
	261	\r
	262	//\r
	263	// Register EFI_END_OF_DXE_EVENT_GROUP_GUID event.\r
65b24ada	264	// The notification function allocates StartupVector and saves MTRRs for ACPI_CPU_DATA\r
bfec5efa MK	265	//\r
	266	Status = gBS->CreateEventEx (\r
	267	EVT_NOTIFY_SIGNAL,\r
	268	TPL_CALLBACK,\r
65b24ada JF	269	CpuS3DataOnEndOfDxe,\r
65b24ada JF	270	AcpiCpuData,\r
bfec5efa MK	271	&gEfiEndOfDxeEventGroupGuid,\r
	272	&Event\r
	273	);\r
	274	ASSERT_EFI_ERROR (Status);\r
	275	\r
	276	return EFI_SUCCESS;\r
	277	}\r