2
This module produces the EFI_PEI_S3_RESUME_PPI.
3
This module works with StandAloneBootScriptExecutor to S3 resume to OS.
4
This module will excute the boot script saved during last boot and after that,
5
control is passed to OS waking up handler.
7
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
9
This program and the accompanying materials
10
are licensed and made available under the terms and conditions
11
of the BSD License which accompanies this distribution. The
12
full text of the license may be found at
13
http://opensource.org/licenses/bsd-license.php
15
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
16
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
22
#include <Guid/AcpiS3Context.h>
23
#include <Guid/BootScriptExecutorVariable.h>
24
#include <Guid/Performance.h>
25
#include <Ppi/ReadOnlyVariable2.h>
26
#include <Ppi/S3Resume2.h>
27
#include <Ppi/SmmAccess.h>
28
#include <Ppi/PostBootScriptTable.h>
29
#include <Ppi/EndOfPeiPhase.h>
31
#include <Library/DebugLib.h>
32
#include <Library/BaseLib.h>
33
#include <Library/TimerLib.h>
34
#include <Library/PeimEntryPoint.h>
35
#include <Library/PeiServicesLib.h>
36
#include <Library/HobLib.h>
37
#include <Library/PerformanceLib.h>
38
#include <Library/PeiServicesTablePointerLib.h>
39
#include <Library/IoLib.h>
40
#include <Library/BaseMemoryLib.h>
41
#include <Library/MemoryAllocationLib.h>
42
#include <Library/PcdLib.h>
43
#include <Library/DebugAgentLib.h>
44
#include <Library/LocalApicLib.h>
45
#include <Library/ReportStatusCodeLib.h>
46
#include <Library/PrintLib.h>
47
#include <Library/HobLib.h>
48
#include <Library/LockBoxLib.h>
49
#include <IndustryStandard/Acpi.h>
64
UINT32 DefaultSize : 1;
65
UINT32 Granularity : 1;
72
// Page-Map Level-4 Offset (PML4) and
73
// Page-Directory-Pointer Offset (PDPE) entries 4K & 2MB
77
UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
78
UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
79
UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
80
UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
81
UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
82
UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
83
UINT64 Reserved:1; // Reserved
84
UINT64 MustBeZero:2; // Must Be Zero
85
UINT64 Available:3; // Available for use by system software
86
UINT64 PageTableBaseAddress:40; // Page Table Base Address
87
UINT64 AvabilableHigh:11; // Available for use by system software
88
UINT64 Nx:1; // No Execute bit
91
} PAGE_MAP_AND_DIRECTORY_POINTER;
94
// Page Table Entry 2MB
98
UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
99
UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
100
UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
101
UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
102
UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
103
UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
104
UINT64 Dirty:1; // 0 = Not Dirty, 1 = written by processor on access to page
105
UINT64 MustBe1:1; // Must be 1
106
UINT64 Global:1; // 0 = Not global page, 1 = global page TLB not cleared on CR3 write
107
UINT64 Available:3; // Available for use by system software
109
UINT64 MustBeZero:8; // Must be zero;
110
UINT64 PageTableBaseAddress:31; // Page Table Base Address
111
UINT64 AvabilableHigh:11; // Available for use by system software
112
UINT64 Nx:1; // 0 = Execute Code, 1 = No Code Execution
118
// Page Table Entry 1GB
122
UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory
123
UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write
124
UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User
125
UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching
126
UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached
127
UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)
128
UINT64 Dirty:1; // 0 = Not Dirty, 1 = written by processor on access to page
129
UINT64 MustBe1:1; // Must be 1
130
UINT64 Global:1; // 0 = Not global page, 1 = global page TLB not cleared on CR3 write
131
UINT64 Available:3; // Available for use by system software
133
UINT64 MustBeZero:17; // Must be zero;
134
UINT64 PageTableBaseAddress:22; // Page Table Base Address
135
UINT64 AvabilableHigh:11; // Available for use by system software
136
UINT64 Nx:1; // 0 = Execute Code, 1 = No Code Execution
139
} PAGE_TABLE_1G_ENTRY;
144
// Function prototypes
147
a ASM function to transfer control to OS.
149
@param S3WakingVector The S3 waking up vector saved in ACPI Facs table
150
@param AcpiLowMemoryBase a buffer under 1M which could be used during the transfer
154
(EFIAPI *ASM_TRANSFER_CONTROL) (
155
IN UINT32 S3WakingVector,
156
IN UINT32 AcpiLowMemoryBase
160
Restores the platform to its preboot configuration for an S3 resume and
161
jumps to the OS waking vector.
163
This function will restore the platform to its pre-boot configuration that was
164
pre-stored in the boot script table and transfer control to OS waking vector.
165
Upon invocation, this function is responsible for locating the following
166
information before jumping to OS waking vector:
169
- any other information that it needs
171
The S3RestoreConfig() function then executes the pre-stored boot script table
172
and transitions the platform to the pre-boot state. The boot script is recorded
173
during regular boot using the EFI_S3_SAVE_STATE_PROTOCOL.Write() and
174
EFI_S3_SMM_SAVE_STATE_PROTOCOL.Write() functions. Finally, this function
175
transfers control to the OS waking vector. If the OS supports only a real-mode
176
waking vector, this function will switch from flat mode to real mode before
177
jumping to the waking vector. If all platform pre-boot configurations are
178
successfully restored and all other necessary information is ready, this
179
function will never return and instead will directly jump to the OS waking
180
vector. If this function returns, it indicates that the attempt to resume
181
from the ACPI S3 sleep state failed.
183
@param[in] This Pointer to this instance of the PEI_S3_RESUME_PPI
185
@retval EFI_ABORTED Execution of the S3 resume boot script table failed.
186
@retval EFI_NOT_FOUND Some necessary information that is used for the S3
187
resume boot path could not be located.
193
IN EFI_PEI_S3_RESUME2_PPI *This
197
Set data segment selectors value including DS/ES/FS/GS/SS.
199
@param[in] SelectorValue Segment selector value to be set.
204
AsmSetDataSelectors (
205
IN UINT16 SelectorValue
211
EFI_PEI_S3_RESUME2_PPI mS3ResumePpi = { S3RestoreConfig2 };
213
EFI_PEI_PPI_DESCRIPTOR mPpiList = {
214
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
215
&gEfiPeiS3Resume2PpiGuid,
219
EFI_PEI_PPI_DESCRIPTOR mPpiListPostScriptTable = {
220
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
221
&gPeiPostScriptTablePpiGuid,
225
EFI_PEI_PPI_DESCRIPTOR mPpiListEndOfPeiTable = {
226
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
227
&gEfiEndOfPeiSignalPpiGuid,
232
// Global Descriptor Table (GDT)
234
GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT mGdtEntries[] = {
235
/* selector { Global Segment Descriptor } */
236
/* 0x00 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
237
/* 0x08 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
238
/* 0x10 */ {{0xFFFF, 0, 0, 0xB, 1, 0, 1, 0xF, 0, 0, 1, 1, 0}},
239
/* 0x18 */ {{0xFFFF, 0, 0, 0x3, 1, 0, 1, 0xF, 0, 0, 1, 1, 0}},
240
/* 0x20 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
241
/* 0x28 */ {{0xFFFF, 0, 0, 0xB, 1, 0, 1, 0xF, 0, 0, 0, 1, 0}},
242
/* 0x30 */ {{0xFFFF, 0, 0, 0x3, 1, 0, 1, 0xF, 0, 0, 0, 1, 0}},
243
/* 0x38 */ {{0xFFFF, 0, 0, 0xB, 1, 0, 1, 0xF, 0, 1, 0, 1, 0}},
244
/* 0x40 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
247
#define DATA_SEGEMENT_SELECTOR 0x18
252
GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR mGdt = {
253
sizeof (mGdtEntries) - 1,
258
Performance measure function to get S3 detailed performance data.
260
This function will getS3 detailed performance data and saved in pre-reserved ACPI memory.
263
WriteToOsS3PerformanceData (
268
EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;
269
PERF_HEADER *PerfHeader;
273
EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariableServices;
287
// Retrive time stamp count as early as possilbe
289
Ticker = GetPerformanceCounter ();
291
Freq = GetPerformanceCounterProperties (&StartValue, &EndValue);
293
Freq = DivU64x32 (Freq, 1000);
295
Status = PeiServicesLocatePpi (
296
&gEfiPeiReadOnlyVariable2PpiGuid,
299
(VOID **) &VariableServices
301
if (EFI_ERROR (Status)) {
305
VarSize = sizeof (EFI_PHYSICAL_ADDRESS);
306
Status = VariableServices->GetVariable (
309
&gPerformanceProtocolGuid,
314
if (EFI_ERROR (Status)) {
315
DEBUG ((EFI_D_ERROR, "Fail to retrieve variable to log S3 performance data \n"));
319
PerfHeader = (PERF_HEADER *) (UINTN) mAcpiLowMemoryBase;
321
if (PerfHeader->Signiture != PERFORMANCE_SIGNATURE) {
322
DEBUG ((EFI_D_ERROR, "Performance data in ACPI memory get corrupted! \n"));
327
// Record total S3 resume time.
329
if (EndValue >= StartValue) {
330
PerfHeader->S3Resume = Ticker - StartValue;
333
PerfHeader->S3Resume = StartValue - Ticker;
338
// Get S3 detailed performance data
342
while ((LogEntryKey = GetPerformanceMeasurement (
349
if (EndTicker != 0) {
350
PerfData = &PerfHeader->S3Entry[Index];
353
// Use File Handle to specify the different performance log for PEIM.
354
// File Handle is the base address of PEIM FFS file.
356
if ((AsciiStrnCmp (Token, "PEIM", PEI_PERFORMANCE_STRING_SIZE) == 0) && (Handle != NULL)) {
357
AsciiSPrint (PerfData->Token, PERF_TOKEN_LENGTH, "0x%11p", Handle);
359
AsciiStrnCpy (PerfData->Token, Token, PERF_TOKEN_LENGTH);
361
if (StartTicker == 1) {
362
StartTicker = StartValue;
364
if (EndTicker == 1) {
365
EndTicker = StartValue;
367
Ticker = CountUp? (EndTicker - StartTicker) : (StartTicker - EndTicker);
368
PerfData->Duration = (UINT32) DivU64x32 (Ticker, (UINT32) Freq);
371
// Only Record > 1ms performance data so that more big performance can be recorded.
373
if ((Ticker > Freq) && (++Index >= PERF_PEI_ENTRY_MAX_NUM)) {
375
// Reach the maximum number of PEI performance log entries.
381
PerfHeader->S3EntryNum = (UINT32) Index;
385
The function will check if current waking vector is long mode.
387
@param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT
389
@retval TRUE Current context need long mode waking vector.
390
@retval FALSE Current context need not long mode waking vector.
393
IsLongModeWakingVector (
394
IN ACPI_S3_CONTEXT *AcpiS3Context
397
EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs;
399
Facs = (EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable));
400
if ((Facs == NULL) ||
401
(Facs->Signature != EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
402
((Facs->FirmwareWakingVector == 0) && (Facs->XFirmwareWakingVector == 0)) ) {
403
// Something wrong with FACS
406
if (Facs->XFirmwareWakingVector != 0) {
407
if ((Facs->Version == EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION) &&
408
((Facs->Flags & EFI_ACPI_4_0_64BIT_WAKE_SUPPORTED_F) != 0) &&
409
((Facs->Flags & EFI_ACPI_4_0_OSPM_64BIT_WAKE__F) != 0)) {
410
// Both BIOS and OS wants 64bit vector
411
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {
420
Jump to OS waking vector.
421
The function will install boot script done PPI, report S3 resume status code, and then jump to OS waking vector.
423
@param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT
424
@param PeiS3ResumeState a pointer to a structure of PEI_S3_RESUME_STATE
429
IN ACPI_S3_CONTEXT *AcpiS3Context,
430
IN PEI_S3_RESUME_STATE *PeiS3ResumeState
434
EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs;
435
ASM_TRANSFER_CONTROL AsmTransferControl;
437
UINTN TempStack[0x10];
442
AsmWriteIdtr (&PeiS3ResumeState->Idtr);
444
if (PeiS3ResumeState->ReturnStatus != EFI_SUCCESS) {
446
// Report Status code that boot script execution is failed
449
EFI_ERROR_CODE | EFI_ERROR_MINOR,
450
(EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_BOOT_SCRIPT_ERROR)
455
// NOTE: Because Debug Timer interrupt and system interrupts will be disabled
456
// in BootScriptExecuteDxe, the rest code in S3ResumeBootOs() cannot be halted
460
PERF_END (NULL, "ScriptExec", NULL, 0);
463
// Install BootScriptDonePpi
465
Status = PeiServicesInstallPpi (&mPpiListPostScriptTable);
466
ASSERT_EFI_ERROR (Status);
469
// Get ACPI Table Address
471
Facs = (EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable));
473
if ((Facs == NULL) ||
474
(Facs->Signature != EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
475
((Facs->FirmwareWakingVector == 0) && (Facs->XFirmwareWakingVector == 0)) ) {
477
// Report Status code that no valid vector is found
480
EFI_ERROR_CODE | EFI_ERROR_MAJOR,
481
(EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_OS_WAKE_ERROR)
488
// Install EndOfPeiPpi
490
Status = PeiServicesInstallPpi (&mPpiListEndOfPeiTable);
491
ASSERT_EFI_ERROR (Status);
494
// report status code on S3 resume
496
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_OS_WAKE);
499
WriteToOsS3PerformanceData ();
502
AsmTransferControl = (ASM_TRANSFER_CONTROL)(UINTN)PeiS3ResumeState->AsmTransferControl;
503
if (Facs->XFirmwareWakingVector != 0) {
505
// Switch to native waking vector
507
TempStackTop = (UINTN)&TempStack + sizeof(TempStack);
508
if ((Facs->Version == EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION) &&
509
((Facs->Flags & EFI_ACPI_4_0_64BIT_WAKE_SUPPORTED_F) != 0) &&
510
((Facs->Flags & EFI_ACPI_4_0_OSPM_64BIT_WAKE__F) != 0)) {
512
// X64 long mode waking vector
514
DEBUG (( EFI_D_ERROR, "Transfer to 64bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));
515
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {
518
Facs->XFirmwareWakingVector,
521
(UINT64)(UINTN)TempStackTop
525
// Report Status code that no valid waking vector is found
528
EFI_ERROR_CODE | EFI_ERROR_MAJOR,
529
(EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_OS_WAKE_ERROR)
531
DEBUG (( EFI_D_ERROR, "Unsupported for 32bit DXE transfer to 64bit OS waking vector!\r\n"));
538
// IA32 protected mode waking vector (Page disabled)
540
DEBUG (( EFI_D_ERROR, "Transfer to 32bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));
542
(SWITCH_STACK_ENTRY_POINT) (UINTN) Facs->XFirmwareWakingVector,
545
(VOID *)(UINTN)TempStackTop
550
// 16bit Realmode waking vector
552
DEBUG (( EFI_D_ERROR, "Transfer to 16bit OS waking vector - %x\r\n", (UINTN)Facs->FirmwareWakingVector));
553
AsmTransferControl (Facs->FirmwareWakingVector, 0x0);
557
// Report Status code the failure of S3Resume
560
EFI_ERROR_CODE | EFI_ERROR_MAJOR,
561
(EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_EC_S3_OS_WAKE_ERROR)
571
Restore S3 page table because we do not trust ACPINvs content.
572
If BootScriptExector driver will not run in 64-bit mode, this function will do nothing.
574
@param S3NvsPageTableAddress PageTableAddress in ACPINvs
575
@param Build4GPageTableOnly If BIOS just build 4G page table only
578
RestoreS3PageTables (
579
IN UINTN S3NvsPageTableAddress,
580
IN BOOLEAN Build4GPageTableOnly
583
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {
586
UINT8 PhysicalAddressBits;
587
EFI_PHYSICAL_ADDRESS PageAddress;
588
UINTN IndexOfPml4Entries;
589
UINTN IndexOfPdpEntries;
590
UINTN IndexOfPageDirectoryEntries;
591
UINT32 NumberOfPml4EntriesNeeded;
592
UINT32 NumberOfPdpEntriesNeeded;
593
PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel4Entry;
594
PAGE_MAP_AND_DIRECTORY_POINTER *PageMap;
595
PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry;
596
PAGE_TABLE_ENTRY *PageDirectoryEntry;
598
BOOLEAN Page1GSupport;
599
PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry;
602
// NOTE: We have to ASSUME the page table generation format, because we do not know whole page table information.
603
// The whole page table is too large to be saved in SMRAM.
605
// The assumption is : whole page table is allocated in CONTINOUS memory and CR3 points to TOP page.
607
DEBUG ((EFI_D_ERROR, "S3NvsPageTableAddress - %x (%x)\n", (UINTN)S3NvsPageTableAddress, (UINTN)Build4GPageTableOnly));
610
// By architecture only one PageMapLevel4 exists - so lets allocate storgage for it.
612
PageMap = (PAGE_MAP_AND_DIRECTORY_POINTER *)S3NvsPageTableAddress;
613
S3NvsPageTableAddress += SIZE_4KB;
615
Page1GSupport = FALSE;
616
if (PcdGetBool(PcdUse1GPageTable)) {
617
AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
618
if (RegEax >= 0x80000001) {
619
AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);
620
if ((RegEdx & BIT26) != 0) {
621
Page1GSupport = TRUE;
627
// Get physical address bits supported.
629
Hob = GetFirstHob (EFI_HOB_TYPE_CPU);
631
PhysicalAddressBits = ((EFI_HOB_CPU *) Hob)->SizeOfMemorySpace;
633
AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
634
if (RegEax >= 0x80000008) {
635
AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
636
PhysicalAddressBits = (UINT8) RegEax;
638
PhysicalAddressBits = 36;
643
// IA-32e paging translates 48-bit linear addresses to 52-bit physical addresses.
645
ASSERT (PhysicalAddressBits <= 52);
646
if (PhysicalAddressBits > 48) {
647
PhysicalAddressBits = 48;
651
// NOTE: In order to save time to create full page table, we just create 4G page table by default.
652
// And let PF handler in BootScript driver to create more on request.
654
if (Build4GPageTableOnly) {
655
PhysicalAddressBits = 32;
656
ZeroMem (PageMap, EFI_PAGES_TO_SIZE(2));
659
// Calculate the table entries needed.
661
if (PhysicalAddressBits <= 39) {
662
NumberOfPml4EntriesNeeded = 1;
663
NumberOfPdpEntriesNeeded = (UINT32)LShiftU64 (1, (PhysicalAddressBits - 30));
665
NumberOfPml4EntriesNeeded = (UINT32)LShiftU64 (1, (PhysicalAddressBits - 39));
666
NumberOfPdpEntriesNeeded = 512;
669
PageMapLevel4Entry = PageMap;
671
for (IndexOfPml4Entries = 0; IndexOfPml4Entries < NumberOfPml4EntriesNeeded; IndexOfPml4Entries++, PageMapLevel4Entry++) {
673
// Each PML4 entry points to a page of Page Directory Pointer entires.
674
// So lets allocate space for them and fill them in in the IndexOfPdpEntries loop.
676
PageDirectoryPointerEntry = (PAGE_MAP_AND_DIRECTORY_POINTER *)S3NvsPageTableAddress;
677
S3NvsPageTableAddress += SIZE_4KB;
682
PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry;
683
PageMapLevel4Entry->Bits.ReadWrite = 1;
684
PageMapLevel4Entry->Bits.Present = 1;
687
PageDirectory1GEntry = (VOID *) PageDirectoryPointerEntry;
689
for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectory1GEntry++, PageAddress += SIZE_1GB) {
691
// Fill in the Page Directory entries
693
PageDirectory1GEntry->Uint64 = (UINT64)PageAddress;
694
PageDirectory1GEntry->Bits.ReadWrite = 1;
695
PageDirectory1GEntry->Bits.Present = 1;
696
PageDirectory1GEntry->Bits.MustBe1 = 1;
699
for (IndexOfPdpEntries = 0; IndexOfPdpEntries < NumberOfPdpEntriesNeeded; IndexOfPdpEntries++, PageDirectoryPointerEntry++) {
701
// Each Directory Pointer entries points to a page of Page Directory entires.
702
// So allocate space for them and fill them in in the IndexOfPageDirectoryEntries loop.
704
PageDirectoryEntry = (PAGE_TABLE_ENTRY *)S3NvsPageTableAddress;
705
S3NvsPageTableAddress += SIZE_4KB;
708
// Fill in a Page Directory Pointer Entries
710
PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry;
711
PageDirectoryPointerEntry->Bits.ReadWrite = 1;
712
PageDirectoryPointerEntry->Bits.Present = 1;
714
for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectoryEntry++, PageAddress += SIZE_2MB) {
716
// Fill in the Page Directory entries
718
PageDirectoryEntry->Uint64 = (UINT64)PageAddress;
719
PageDirectoryEntry->Bits.ReadWrite = 1;
720
PageDirectoryEntry->Bits.Present = 1;
721
PageDirectoryEntry->Bits.MustBe1 = 1;
729
// If DXE is running 32-bit mode, no need to establish page table.
736
Jump to boot script executor driver.
738
The function will close and lock SMRAM and then jump to boot script execute driver to executing S3 boot script table.
740
@param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT
741
@param EfiBootScriptExecutorVariable The function entry to executing S3 boot Script table. This function is build in
742
boot script execute driver
746
S3ResumeExecuteBootScript (
747
IN ACPI_S3_CONTEXT *AcpiS3Context,
748
IN BOOT_SCRIPT_EXECUTOR_VARIABLE *EfiBootScriptExecutorVariable
752
PEI_SMM_ACCESS_PPI *SmmAccess;
755
IA32_DESCRIPTOR *IdtDescriptor;
757
PEI_S3_RESUME_STATE *PeiS3ResumeState;
758
BOOLEAN InterruptStatus;
760
DEBUG ((EFI_D_ERROR, "S3ResumeExecuteBootScript()\n"));
763
// Attempt to use content from SMRAM first
765
GuidHob = GetFirstGuidHob (&gEfiAcpiVariableGuid);
766
if (GuidHob != NULL) {
768
// Last step for SMM - send SMI for initialization
774
SendSmiIpiAllExcludingSelf ();
778
SendSmiIpi (GetApicId ());
780
Status = PeiServicesLocatePpi (
781
&gPeiSmmAccessPpiGuid,
786
if (!EFI_ERROR (Status)) {
787
DEBUG ((EFI_D_ERROR, "Close all SMRAM regions before executing boot script\n"));
789
for (Index = 0, Status = EFI_SUCCESS; !EFI_ERROR (Status); Index++) {
790
Status = SmmAccess->Close ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);
793
DEBUG ((EFI_D_ERROR, "Lock all SMRAM regions before executing boot script\n"));
795
for (Index = 0, Status = EFI_SUCCESS; !EFI_ERROR (Status); Index++) {
796
Status = SmmAccess->Lock ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);
801
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {
802
AsmWriteCr3 ((UINTN)AcpiS3Context->S3NvsPageTableAddress);
805
if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {
807
// On some platform, such as ECP, a dispatch node in boot script table may execute a 32-bit PEIM which may need PeiServices
808
// pointer. So PeiServices need preserve in (IDTBase- sizeof (UINTN)).
810
IdtDescriptor = (IA32_DESCRIPTOR *) (UINTN) (AcpiS3Context->IdtrProfile);
812
// Make sure the newly allcated IDT align with 16-bytes
814
IdtBuffer = AllocatePages (EFI_SIZE_TO_PAGES((IdtDescriptor->Limit + 1) + 16));
815
ASSERT (IdtBuffer != NULL);
817
// Additional 16 bytes allocated to save IA32 IDT descriptor and Pei Service Table Pointer
818
// IA32 IDT descriptor will be used to setup IA32 IDT table for 32-bit Framework Boot Script code
820
ZeroMem (IdtBuffer, 16);
821
AsmReadIdtr ((IA32_DESCRIPTOR *)IdtBuffer);
822
CopyMem ((VOID*)((UINT8*)IdtBuffer + 16),(VOID*)(IdtDescriptor->Base), (IdtDescriptor->Limit + 1));
823
IdtDescriptor->Base = (UINTN)((UINT8*)IdtBuffer + 16);
824
*(UINTN*)(IdtDescriptor->Base - sizeof(UINTN)) = (UINTN)GetPeiServicesTablePointer ();
827
InterruptStatus = SaveAndDisableInterrupts ();
829
// Need to make sure the GDT is loaded with values that support long mode and real mode.
831
AsmWriteGdtr (&mGdt);
833
// update segment selectors per the new GDT.
835
AsmSetDataSelectors (DATA_SEGEMENT_SELECTOR);
837
// Restore interrupt state.
839
SetInterruptState (InterruptStatus);
842
// Prepare data for return back
844
PeiS3ResumeState = AllocatePool (sizeof(*PeiS3ResumeState));
845
ASSERT (PeiS3ResumeState != NULL);
846
DEBUG (( EFI_D_ERROR, "PeiS3ResumeState - %x\r\n", PeiS3ResumeState));
847
PeiS3ResumeState->ReturnCs = 0x10;
848
PeiS3ResumeState->ReturnEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)S3ResumeBootOs;
849
PeiS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)(UINTN)&Status;
853
AsmReadIdtr (&PeiS3ResumeState->Idtr);
856
// Report Status Code to indicate S3 boot script execution
858
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_S3_BOOT_SCRIPT);
860
PERF_START (NULL, "ScriptExec", NULL, 0);
862
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {
866
DEBUG (( EFI_D_ERROR, "Enable X64 and transfer control to Standalone Boot Script Executor\r\n"));
869
// Switch to long mode to complete resume.
873
EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint,
874
(UINT64)(UINTN)AcpiS3Context,
875
(UINT64)(UINTN)PeiS3ResumeState,
876
(UINT64)(UINTN)(AcpiS3Context->BootScriptStackBase + AcpiS3Context->BootScriptStackSize)
882
DEBUG (( EFI_D_ERROR, "transfer control to Standalone Boot Script Executor\r\n"));
884
(SWITCH_STACK_ENTRY_POINT) (UINTN) EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint,
885
(VOID *)AcpiS3Context,
886
(VOID *)PeiS3ResumeState,
887
(VOID *)(UINTN)(AcpiS3Context->BootScriptStackBase + AcpiS3Context->BootScriptStackSize)
897
Restores the platform to its preboot configuration for an S3 resume and
898
jumps to the OS waking vector.
900
This function will restore the platform to its pre-boot configuration that was
901
pre-stored in the boot script table and transfer control to OS waking vector.
902
Upon invocation, this function is responsible for locating the following
903
information before jumping to OS waking vector:
906
- any other information that it needs
908
The S3RestoreConfig() function then executes the pre-stored boot script table
909
and transitions the platform to the pre-boot state. The boot script is recorded
910
during regular boot using the EFI_S3_SAVE_STATE_PROTOCOL.Write() and
911
EFI_S3_SMM_SAVE_STATE_PROTOCOL.Write() functions. Finally, this function
912
transfers control to the OS waking vector. If the OS supports only a real-mode
913
waking vector, this function will switch from flat mode to real mode before
914
jumping to the waking vector. If all platform pre-boot configurations are
915
successfully restored and all other necessary information is ready, this
916
function will never return and instead will directly jump to the OS waking
917
vector. If this function returns, it indicates that the attempt to resume
918
from the ACPI S3 sleep state failed.
920
@param[in] This Pointer to this instance of the PEI_S3_RESUME_PPI
922
@retval EFI_ABORTED Execution of the S3 resume boot script table failed.
923
@retval EFI_NOT_FOUND Some necessary information that is used for the S3
924
resume boot path could not be located.
930
IN EFI_PEI_S3_RESUME2_PPI *This
934
PEI_SMM_ACCESS_PPI *SmmAccess;
936
ACPI_S3_CONTEXT *AcpiS3Context;
937
EFI_PHYSICAL_ADDRESS TempEfiBootScriptExecutorVariable;
938
EFI_PHYSICAL_ADDRESS TempAcpiS3Context;
939
BOOT_SCRIPT_EXECUTOR_VARIABLE *EfiBootScriptExecutorVariable;
941
EFI_SMRAM_DESCRIPTOR *SmramDescriptor;
942
SMM_S3_RESUME_STATE *SmmS3ResumeState;
944
BOOLEAN Build4GPageTableOnly;
945
BOOLEAN InterruptStatus;
947
TempAcpiS3Context = 0;
948
TempEfiBootScriptExecutorVariable = 0;
950
DEBUG ((EFI_D_ERROR, "Enter S3 PEIM\r\n"));
952
VarSize = sizeof (EFI_PHYSICAL_ADDRESS);
953
Status = RestoreLockBox (
954
&gEfiAcpiVariableGuid,
958
ASSERT_EFI_ERROR (Status);
960
Status = RestoreLockBox (
961
&gEfiAcpiS3ContextGuid,
965
ASSERT_EFI_ERROR (Status);
967
AcpiS3Context = (ACPI_S3_CONTEXT *)(UINTN)TempAcpiS3Context;
968
ASSERT (AcpiS3Context != NULL);
970
VarSize = sizeof (EFI_PHYSICAL_ADDRESS);
971
Status = RestoreLockBox (
972
&gEfiBootScriptExecutorVariableGuid,
973
&TempEfiBootScriptExecutorVariable,
976
ASSERT_EFI_ERROR (Status);
978
Status = RestoreLockBox (
979
&gEfiBootScriptExecutorContextGuid,
983
ASSERT_EFI_ERROR (Status);
985
EfiBootScriptExecutorVariable = (BOOT_SCRIPT_EXECUTOR_VARIABLE *) (UINTN) TempEfiBootScriptExecutorVariable;
986
ASSERT (EfiBootScriptExecutorVariable != NULL);
988
DEBUG (( EFI_D_ERROR, "AcpiS3Context = %x\n", AcpiS3Context));
989
DEBUG (( EFI_D_ERROR, "Waking Vector = %x\n", ((EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable)))->FirmwareWakingVector));
990
DEBUG (( EFI_D_ERROR, "AcpiS3Context->AcpiFacsTable = %x\n", AcpiS3Context->AcpiFacsTable));
991
DEBUG (( EFI_D_ERROR, "AcpiS3Context->S3NvsPageTableAddress = %x\n", AcpiS3Context->S3NvsPageTableAddress));
992
DEBUG (( EFI_D_ERROR, "AcpiS3Context->S3DebugBufferAddress = %x\n", AcpiS3Context->S3DebugBufferAddress));
993
DEBUG (( EFI_D_ERROR, "EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint = %x\n", EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint));
996
// Additional step for BootScript integrity - we only handle BootScript and BootScriptExecutor.
997
// Script dispatch image and context (parameter) are handled by platform.
998
// We just use restore all lock box in place, no need restore one by one.
1000
Status = RestoreAllLockBoxInPlace ();
1001
ASSERT_EFI_ERROR (Status);
1002
if (EFI_ERROR (Status)) {
1007
if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {
1009
// Need reconstruct page table here, since we do not trust ACPINvs.
1011
if (IsLongModeWakingVector (AcpiS3Context)) {
1012
Build4GPageTableOnly = FALSE;
1014
Build4GPageTableOnly = TRUE;
1016
RestoreS3PageTables ((UINTN)AcpiS3Context->S3NvsPageTableAddress, Build4GPageTableOnly);
1020
// Attempt to use content from SMRAM first
1022
GuidHob = GetFirstGuidHob (&gEfiAcpiVariableGuid);
1023
if (GuidHob != NULL) {
1024
Status = PeiServicesLocatePpi (
1025
&gPeiSmmAccessPpiGuid,
1028
(VOID **) &SmmAccess
1030
for (Index = 0; !EFI_ERROR (Status); Index++) {
1031
Status = SmmAccess->Open ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);
1034
SmramDescriptor = (EFI_SMRAM_DESCRIPTOR *) GET_GUID_HOB_DATA (GuidHob);
1035
SmmS3ResumeState = (SMM_S3_RESUME_STATE *)(UINTN)SmramDescriptor->CpuStart;
1037
SmmS3ResumeState->ReturnCs = AsmReadCs ();
1038
SmmS3ResumeState->ReturnEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)S3ResumeExecuteBootScript;
1039
SmmS3ResumeState->ReturnContext1 = (EFI_PHYSICAL_ADDRESS)(UINTN)AcpiS3Context;
1040
SmmS3ResumeState->ReturnContext2 = (EFI_PHYSICAL_ADDRESS)(UINTN)EfiBootScriptExecutorVariable;
1041
SmmS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)(UINTN)&Status;
1043
DEBUG (( EFI_D_ERROR, "SMM S3 Signature = %x\n", SmmS3ResumeState->Signature));
1044
DEBUG (( EFI_D_ERROR, "SMM S3 Stack Base = %x\n", SmmS3ResumeState->SmmS3StackBase));
1045
DEBUG (( EFI_D_ERROR, "SMM S3 Stack Size = %x\n", SmmS3ResumeState->SmmS3StackSize));
1046
DEBUG (( EFI_D_ERROR, "SMM S3 Resume Entry Point = %x\n", SmmS3ResumeState->SmmS3ResumeEntryPoint));
1047
DEBUG (( EFI_D_ERROR, "SMM S3 CR0 = %x\n", SmmS3ResumeState->SmmS3Cr0));
1048
DEBUG (( EFI_D_ERROR, "SMM S3 CR3 = %x\n", SmmS3ResumeState->SmmS3Cr3));
1049
DEBUG (( EFI_D_ERROR, "SMM S3 CR4 = %x\n", SmmS3ResumeState->SmmS3Cr4));
1050
DEBUG (( EFI_D_ERROR, "SMM S3 Return CS = %x\n", SmmS3ResumeState->ReturnCs));
1051
DEBUG (( EFI_D_ERROR, "SMM S3 Return Entry Point = %x\n", SmmS3ResumeState->ReturnEntryPoint));
1052
DEBUG (( EFI_D_ERROR, "SMM S3 Return Context1 = %x\n", SmmS3ResumeState->ReturnContext1));
1053
DEBUG (( EFI_D_ERROR, "SMM S3 Return Context2 = %x\n", SmmS3ResumeState->ReturnContext2));
1054
DEBUG (( EFI_D_ERROR, "SMM S3 Return Stack Pointer = %x\n", SmmS3ResumeState->ReturnStackPointer));
1055
DEBUG (( EFI_D_ERROR, "SMM S3 Smst = %x\n", SmmS3ResumeState->Smst));
1057
if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_32) {
1059
(SWITCH_STACK_ENTRY_POINT)(UINTN)SmmS3ResumeState->SmmS3ResumeEntryPoint,
1060
(VOID *)AcpiS3Context,
1062
(VOID *)(UINTN)(SmmS3ResumeState->SmmS3StackBase + SmmS3ResumeState->SmmS3StackSize)
1065
if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_64) {
1067
// Switch to long mode to complete resume.
1070
InterruptStatus = SaveAndDisableInterrupts ();
1072
// Need to make sure the GDT is loaded with values that support long mode and real mode.
1074
AsmWriteGdtr (&mGdt);
1076
// update segment selectors per the new GDT.
1078
AsmSetDataSelectors (DATA_SEGEMENT_SELECTOR);
1080
// Restore interrupt state.
1082
SetInterruptState (InterruptStatus);
1084
AsmWriteCr3 ((UINTN)SmmS3ResumeState->SmmS3Cr3);
1087
// Disable interrupt of Debug timer, since IDT table cannot work in long mode.
1088
// NOTE: On x64 platforms, because DisablePaging64() will disable interrupts,
1089
// the code in S3ResumeExecuteBootScript() cannot be halted by soft debugger.
1091
SaveAndSetDebugTimerInterrupt (FALSE);
1095
SmmS3ResumeState->SmmS3ResumeEntryPoint,
1096
(UINT64)(UINTN)AcpiS3Context,
1098
SmmS3ResumeState->SmmS3StackBase + SmmS3ResumeState->SmmS3StackSize
1104
S3ResumeExecuteBootScript (AcpiS3Context, EfiBootScriptExecutorVariable );
1108
Main entry for S3 Resume PEIM.
1110
This routine is to install EFI_PEI_S3_RESUME2_PPI.
1112
@param FileHandle Handle of the file being invoked.
1113
@param PeiServices Pointer to PEI Services table.
1115
@retval EFI_SUCCESS S3Resume Ppi is installed successfully.
1120
PeimS3ResumeEntryPoint (
1121
IN EFI_PEI_FILE_HANDLE FileHandle,
1122
IN CONST EFI_PEI_SERVICES **PeiServices
1128
// Install S3 Resume Ppi
1130
Status = (**PeiServices).InstallPpi (PeiServices, &mPpiList);
1131
ASSERT_EFI_ERROR (Status);