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1f569620 | 1 | /** @file\r |
2 | This module produces the EFI_PEI_S3_RESUME_PPI.\r | |
3 | This module works with StandAloneBootScriptExecutor to S3 resume to OS.\r | |
4 | This module will excute the boot script saved during last boot and after that,\r | |
5 | control is passed to OS waking up handler.\r | |
6 | \r | |
e47459e6 | 7 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r |
1f569620 | 8 | \r |
9 | This program and the accompanying materials\r | |
10 | are licensed and made available under the terms and conditions\r | |
11 | of the BSD License which accompanies this distribution. The\r | |
12 | full text of the license may be found at\r | |
13 | http://opensource.org/licenses/bsd-license.php\r | |
14 | \r | |
15 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
16 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
17 | \r | |
18 | **/\r | |
19 | \r | |
20 | #include <PiPei.h>\r | |
21 | \r | |
22 | #include <Guid/AcpiS3Context.h>\r | |
23 | #include <Guid/BootScriptExecutorVariable.h>\r | |
24 | #include <Guid/Performance.h>\r | |
25 | #include <Ppi/ReadOnlyVariable2.h>\r | |
26 | #include <Ppi/S3Resume2.h>\r | |
27 | #include <Ppi/SmmAccess.h>\r | |
28 | #include <Ppi/PostBootScriptTable.h>\r | |
29 | #include <Ppi/EndOfPeiPhase.h>\r | |
30 | \r | |
31 | #include <Library/DebugLib.h>\r | |
32 | #include <Library/BaseLib.h>\r | |
33 | #include <Library/TimerLib.h>\r | |
34 | #include <Library/PeimEntryPoint.h>\r | |
35 | #include <Library/PeiServicesLib.h>\r | |
36 | #include <Library/HobLib.h>\r | |
37 | #include <Library/PerformanceLib.h>\r | |
38 | #include <Library/PeiServicesTablePointerLib.h>\r | |
39 | #include <Library/IoLib.h>\r | |
40 | #include <Library/BaseMemoryLib.h>\r | |
41 | #include <Library/MemoryAllocationLib.h>\r | |
42 | #include <Library/PcdLib.h>\r | |
43 | #include <Library/DebugAgentLib.h>\r | |
44 | #include <Library/LocalApicLib.h>\r | |
45 | #include <Library/ReportStatusCodeLib.h>\r | |
46 | #include <Library/PrintLib.h>\r | |
c56b6566 | 47 | #include <Library/HobLib.h>\r |
1f569620 | 48 | #include <Library/LockBoxLib.h>\r |
49 | #include <IndustryStandard/Acpi.h>\r | |
50 | \r | |
51 | #pragma pack(1)\r | |
52 | typedef union {\r | |
53 | struct {\r | |
54 | UINT32 LimitLow : 16;\r | |
55 | UINT32 BaseLow : 16;\r | |
56 | UINT32 BaseMid : 8;\r | |
57 | UINT32 Type : 4;\r | |
58 | UINT32 System : 1;\r | |
59 | UINT32 Dpl : 2;\r | |
60 | UINT32 Present : 1;\r | |
61 | UINT32 LimitHigh : 4;\r | |
62 | UINT32 Software : 1;\r | |
63 | UINT32 Reserved : 1;\r | |
64 | UINT32 DefaultSize : 1;\r | |
65 | UINT32 Granularity : 1;\r | |
66 | UINT32 BaseHigh : 8;\r | |
67 | } Bits;\r | |
68 | UINT64 Uint64;\r | |
69 | } IA32_GDT;\r | |
70 | \r | |
71 | //\r | |
72 | // Page-Map Level-4 Offset (PML4) and\r | |
73 | // Page-Directory-Pointer Offset (PDPE) entries 4K & 2MB\r | |
74 | //\r | |
75 | typedef union {\r | |
76 | struct {\r | |
77 | UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory\r | |
78 | UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write\r | |
79 | UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User\r | |
80 | UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching\r | |
81 | UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached\r | |
82 | UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)\r | |
83 | UINT64 Reserved:1; // Reserved\r | |
84 | UINT64 MustBeZero:2; // Must Be Zero\r | |
85 | UINT64 Available:3; // Available for use by system software\r | |
86 | UINT64 PageTableBaseAddress:40; // Page Table Base Address\r | |
87 | UINT64 AvabilableHigh:11; // Available for use by system software\r | |
88 | UINT64 Nx:1; // No Execute bit\r | |
89 | } Bits;\r | |
90 | UINT64 Uint64;\r | |
91 | } PAGE_MAP_AND_DIRECTORY_POINTER;\r | |
92 | \r | |
93 | //\r | |
94 | // Page Table Entry 2MB\r | |
95 | //\r | |
96 | typedef union {\r | |
97 | struct {\r | |
98 | UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory\r | |
99 | UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write\r | |
100 | UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User\r | |
101 | UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching\r | |
102 | UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached\r | |
103 | UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)\r | |
104 | UINT64 Dirty:1; // 0 = Not Dirty, 1 = written by processor on access to page\r | |
105 | UINT64 MustBe1:1; // Must be 1 \r | |
106 | UINT64 Global:1; // 0 = Not global page, 1 = global page TLB not cleared on CR3 write\r | |
107 | UINT64 Available:3; // Available for use by system software\r | |
108 | UINT64 PAT:1; //\r | |
109 | UINT64 MustBeZero:8; // Must be zero;\r | |
110 | UINT64 PageTableBaseAddress:31; // Page Table Base Address\r | |
111 | UINT64 AvabilableHigh:11; // Available for use by system software\r | |
112 | UINT64 Nx:1; // 0 = Execute Code, 1 = No Code Execution\r | |
113 | } Bits;\r | |
114 | UINT64 Uint64;\r | |
115 | } PAGE_TABLE_ENTRY;\r | |
116 | \r | |
c56b6566 JY |
117 | //\r |
118 | // Page Table Entry 1GB\r | |
119 | //\r | |
120 | typedef union {\r | |
121 | struct {\r | |
122 | UINT64 Present:1; // 0 = Not present in memory, 1 = Present in memory\r | |
123 | UINT64 ReadWrite:1; // 0 = Read-Only, 1= Read/Write\r | |
124 | UINT64 UserSupervisor:1; // 0 = Supervisor, 1=User\r | |
125 | UINT64 WriteThrough:1; // 0 = Write-Back caching, 1=Write-Through caching\r | |
126 | UINT64 CacheDisabled:1; // 0 = Cached, 1=Non-Cached\r | |
127 | UINT64 Accessed:1; // 0 = Not accessed, 1 = Accessed (set by CPU)\r | |
128 | UINT64 Dirty:1; // 0 = Not Dirty, 1 = written by processor on access to page\r | |
129 | UINT64 MustBe1:1; // Must be 1 \r | |
130 | UINT64 Global:1; // 0 = Not global page, 1 = global page TLB not cleared on CR3 write\r | |
131 | UINT64 Available:3; // Available for use by system software\r | |
132 | UINT64 PAT:1; //\r | |
133 | UINT64 MustBeZero:17; // Must be zero;\r | |
134 | UINT64 PageTableBaseAddress:22; // Page Table Base Address\r | |
135 | UINT64 AvabilableHigh:11; // Available for use by system software\r | |
136 | UINT64 Nx:1; // 0 = Execute Code, 1 = No Code Execution\r | |
137 | } Bits;\r | |
138 | UINT64 Uint64;\r | |
139 | } PAGE_TABLE_1G_ENTRY;\r | |
140 | \r | |
1f569620 | 141 | #pragma pack()\r |
142 | \r | |
143 | //\r | |
144 | // Function prototypes\r | |
145 | //\r | |
146 | /**\r | |
147 | a ASM function to transfer control to OS.\r | |
148 | \r | |
149 | @param S3WakingVector The S3 waking up vector saved in ACPI Facs table\r | |
150 | @param AcpiLowMemoryBase a buffer under 1M which could be used during the transfer \r | |
151 | **/\r | |
152 | typedef\r | |
153 | VOID\r | |
154 | (EFIAPI *ASM_TRANSFER_CONTROL) (\r | |
155 | IN UINT32 S3WakingVector,\r | |
156 | IN UINT32 AcpiLowMemoryBase\r | |
157 | );\r | |
158 | \r | |
159 | /**\r | |
160 | Restores the platform to its preboot configuration for an S3 resume and\r | |
161 | jumps to the OS waking vector.\r | |
162 | \r | |
163 | This function will restore the platform to its pre-boot configuration that was\r | |
164 | pre-stored in the boot script table and transfer control to OS waking vector.\r | |
165 | Upon invocation, this function is responsible for locating the following\r | |
166 | information before jumping to OS waking vector:\r | |
167 | - ACPI tables\r | |
168 | - boot script table\r | |
169 | - any other information that it needs\r | |
170 | \r | |
171 | The S3RestoreConfig() function then executes the pre-stored boot script table\r | |
172 | and transitions the platform to the pre-boot state. The boot script is recorded\r | |
173 | during regular boot using the EFI_S3_SAVE_STATE_PROTOCOL.Write() and\r | |
174 | EFI_S3_SMM_SAVE_STATE_PROTOCOL.Write() functions. Finally, this function\r | |
175 | transfers control to the OS waking vector. If the OS supports only a real-mode\r | |
176 | waking vector, this function will switch from flat mode to real mode before\r | |
177 | jumping to the waking vector. If all platform pre-boot configurations are\r | |
178 | successfully restored and all other necessary information is ready, this\r | |
179 | function will never return and instead will directly jump to the OS waking\r | |
180 | vector. If this function returns, it indicates that the attempt to resume\r | |
181 | from the ACPI S3 sleep state failed.\r | |
182 | \r | |
183 | @param[in] This Pointer to this instance of the PEI_S3_RESUME_PPI\r | |
184 | \r | |
185 | @retval EFI_ABORTED Execution of the S3 resume boot script table failed.\r | |
186 | @retval EFI_NOT_FOUND Some necessary information that is used for the S3\r | |
187 | resume boot path could not be located.\r | |
188 | \r | |
189 | **/\r | |
190 | EFI_STATUS\r | |
191 | EFIAPI\r | |
192 | S3RestoreConfig2 (\r | |
193 | IN EFI_PEI_S3_RESUME2_PPI *This\r | |
194 | );\r | |
195 | \r | |
abef469f | 196 | /**\r |
197 | Set data segment selectors value including DS/ES/FS/GS/SS.\r | |
198 | \r | |
199 | @param[in] SelectorValue Segment selector value to be set.\r | |
200 | \r | |
201 | **/\r | |
202 | VOID\r | |
203 | EFIAPI\r | |
204 | AsmSetDataSelectors (\r | |
205 | IN UINT16 SelectorValue\r | |
206 | );\r | |
207 | \r | |
1f569620 | 208 | //\r |
209 | // Globals\r | |
210 | //\r | |
211 | EFI_PEI_S3_RESUME2_PPI mS3ResumePpi = { S3RestoreConfig2 };\r | |
212 | \r | |
213 | EFI_PEI_PPI_DESCRIPTOR mPpiList = {\r | |
214 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
215 | &gEfiPeiS3Resume2PpiGuid,\r | |
216 | &mS3ResumePpi\r | |
217 | };\r | |
218 | \r | |
219 | EFI_PEI_PPI_DESCRIPTOR mPpiListPostScriptTable = {\r | |
220 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
221 | &gPeiPostScriptTablePpiGuid,\r | |
222 | 0\r | |
223 | };\r | |
224 | \r | |
225 | EFI_PEI_PPI_DESCRIPTOR mPpiListEndOfPeiTable = {\r | |
226 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
227 | &gEfiEndOfPeiSignalPpiGuid,\r | |
228 | 0\r | |
229 | };\r | |
230 | \r | |
231 | //\r | |
232 | // Global Descriptor Table (GDT)\r | |
233 | //\r | |
234 | GLOBAL_REMOVE_IF_UNREFERENCED IA32_GDT mGdtEntries[] = {\r | |
235 | /* selector { Global Segment Descriptor } */\r | |
236 | /* 0x00 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},\r | |
237 | /* 0x08 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},\r | |
238 | /* 0x10 */ {{0xFFFF, 0, 0, 0xB, 1, 0, 1, 0xF, 0, 0, 1, 1, 0}},\r | |
239 | /* 0x18 */ {{0xFFFF, 0, 0, 0x3, 1, 0, 1, 0xF, 0, 0, 1, 1, 0}},\r | |
240 | /* 0x20 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},\r | |
241 | /* 0x28 */ {{0xFFFF, 0, 0, 0xB, 1, 0, 1, 0xF, 0, 0, 0, 1, 0}},\r | |
242 | /* 0x30 */ {{0xFFFF, 0, 0, 0x3, 1, 0, 1, 0xF, 0, 0, 0, 1, 0}},\r | |
243 | /* 0x38 */ {{0xFFFF, 0, 0, 0xB, 1, 0, 1, 0xF, 0, 1, 0, 1, 0}},\r | |
244 | /* 0x40 */ {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},\r | |
245 | };\r | |
246 | \r | |
abef469f | 247 | #define DATA_SEGEMENT_SELECTOR 0x18\r |
248 | \r | |
1f569620 | 249 | //\r |
250 | // IA32 Gdt register\r | |
251 | //\r | |
252 | GLOBAL_REMOVE_IF_UNREFERENCED CONST IA32_DESCRIPTOR mGdt = {\r | |
253 | sizeof (mGdtEntries) - 1,\r | |
254 | (UINTN) mGdtEntries\r | |
255 | };\r | |
256 | \r | |
257 | /**\r | |
258 | Performance measure function to get S3 detailed performance data.\r | |
259 | \r | |
260 | This function will getS3 detailed performance data and saved in pre-reserved ACPI memory.\r | |
261 | **/\r | |
262 | VOID\r | |
263 | WriteToOsS3PerformanceData (\r | |
264 | VOID\r | |
265 | )\r | |
266 | {\r | |
267 | EFI_STATUS Status;\r | |
268 | EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;\r | |
269 | PERF_HEADER *PerfHeader;\r | |
270 | PERF_DATA *PerfData;\r | |
271 | UINT64 Ticker;\r | |
272 | UINTN Index;\r | |
273 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariableServices;\r | |
274 | UINTN VarSize;\r | |
275 | UINTN LogEntryKey;\r | |
276 | CONST VOID *Handle;\r | |
277 | CONST CHAR8 *Token;\r | |
278 | CONST CHAR8 *Module;\r | |
279 | UINT64 StartTicker;\r | |
280 | UINT64 EndTicker;\r | |
281 | UINT64 StartValue;\r | |
282 | UINT64 EndValue;\r | |
283 | BOOLEAN CountUp;\r | |
284 | UINT64 Freq;\r | |
285 | \r | |
286 | //\r | |
287 | // Retrive time stamp count as early as possilbe\r | |
288 | //\r | |
289 | Ticker = GetPerformanceCounter ();\r | |
290 | \r | |
291 | Freq = GetPerformanceCounterProperties (&StartValue, &EndValue);\r | |
292 | \r | |
293 | Freq = DivU64x32 (Freq, 1000);\r | |
294 | \r | |
295 | Status = PeiServicesLocatePpi (\r | |
296 | &gEfiPeiReadOnlyVariable2PpiGuid,\r | |
297 | 0,\r | |
298 | NULL,\r | |
299 | (VOID **) &VariableServices\r | |
300 | );\r | |
40ef06fc SZ |
301 | if (EFI_ERROR (Status)) {\r |
302 | return;\r | |
303 | }\r | |
1f569620 | 304 | \r |
305 | VarSize = sizeof (EFI_PHYSICAL_ADDRESS);\r | |
306 | Status = VariableServices->GetVariable (\r | |
307 | VariableServices,\r | |
308 | L"PerfDataMemAddr",\r | |
309 | &gPerformanceProtocolGuid,\r | |
310 | NULL,\r | |
311 | &VarSize,\r | |
312 | &mAcpiLowMemoryBase\r | |
313 | );\r | |
314 | if (EFI_ERROR (Status)) {\r | |
315 | DEBUG ((EFI_D_ERROR, "Fail to retrieve variable to log S3 performance data \n"));\r | |
316 | return;\r | |
317 | }\r | |
318 | \r | |
319 | PerfHeader = (PERF_HEADER *) (UINTN) mAcpiLowMemoryBase;\r | |
320 | \r | |
321 | if (PerfHeader->Signiture != PERFORMANCE_SIGNATURE) {\r | |
322 | DEBUG ((EFI_D_ERROR, "Performance data in ACPI memory get corrupted! \n"));\r | |
323 | return;\r | |
324 | }\r | |
325 | \r | |
326 | //\r | |
327 | // Record total S3 resume time.\r | |
328 | //\r | |
329 | if (EndValue >= StartValue) {\r | |
330 | PerfHeader->S3Resume = Ticker - StartValue;\r | |
331 | CountUp = TRUE;\r | |
332 | } else {\r | |
333 | PerfHeader->S3Resume = StartValue - Ticker;\r | |
334 | CountUp = FALSE;\r | |
335 | }\r | |
336 | \r | |
337 | //\r | |
338 | // Get S3 detailed performance data\r | |
339 | //\r | |
340 | Index = 0;\r | |
341 | LogEntryKey = 0;\r | |
342 | while ((LogEntryKey = GetPerformanceMeasurement (\r | |
343 | LogEntryKey,\r | |
344 | &Handle,\r | |
345 | &Token,\r | |
346 | &Module,\r | |
347 | &StartTicker,\r | |
348 | &EndTicker)) != 0) {\r | |
349 | if (EndTicker != 0) {\r | |
350 | PerfData = &PerfHeader->S3Entry[Index];\r | |
351 | \r | |
352 | //\r | |
353 | // Use File Handle to specify the different performance log for PEIM.\r | |
354 | // File Handle is the base address of PEIM FFS file.\r | |
355 | //\r | |
356 | if ((AsciiStrnCmp (Token, "PEIM", PEI_PERFORMANCE_STRING_SIZE) == 0) && (Handle != NULL)) {\r | |
357 | AsciiSPrint (PerfData->Token, PERF_TOKEN_LENGTH, "0x%11p", Handle);\r | |
358 | } else {\r | |
359 | AsciiStrnCpy (PerfData->Token, Token, PERF_TOKEN_LENGTH);\r | |
360 | }\r | |
361 | if (StartTicker == 1) {\r | |
362 | StartTicker = StartValue;\r | |
363 | }\r | |
364 | if (EndTicker == 1) {\r | |
365 | EndTicker = StartValue;\r | |
366 | }\r | |
367 | Ticker = CountUp? (EndTicker - StartTicker) : (StartTicker - EndTicker);\r | |
368 | PerfData->Duration = (UINT32) DivU64x32 (Ticker, (UINT32) Freq);\r | |
369 | \r | |
370 | //\r | |
371 | // Only Record > 1ms performance data so that more big performance can be recorded.\r | |
372 | //\r | |
373 | if ((Ticker > Freq) && (++Index >= PERF_PEI_ENTRY_MAX_NUM)) {\r | |
374 | //\r | |
375 | // Reach the maximum number of PEI performance log entries.\r | |
376 | //\r | |
377 | break;\r | |
378 | }\r | |
379 | }\r | |
380 | }\r | |
381 | PerfHeader->S3EntryNum = (UINT32) Index;\r | |
382 | }\r | |
383 | \r | |
d0bf5623 JY |
384 | /**\r |
385 | The function will check if current waking vector is long mode.\r | |
386 | \r | |
387 | @param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT\r | |
388 | \r | |
389 | @retval TRUE Current context need long mode waking vector.\r | |
390 | @retval FALSE Current context need not long mode waking vector.\r | |
391 | **/\r | |
392 | BOOLEAN\r | |
393 | IsLongModeWakingVector (\r | |
394 | IN ACPI_S3_CONTEXT *AcpiS3Context\r | |
395 | )\r | |
396 | {\r | |
397 | EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs;\r | |
398 | \r | |
399 | Facs = (EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable));\r | |
400 | if ((Facs == NULL) ||\r | |
401 | (Facs->Signature != EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||\r | |
402 | ((Facs->FirmwareWakingVector == 0) && (Facs->XFirmwareWakingVector == 0)) ) {\r | |
403 | // Something wrong with FACS\r | |
404 | return FALSE;\r | |
405 | }\r | |
406 | if (Facs->XFirmwareWakingVector != 0) {\r | |
407 | if ((Facs->Version == EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION) &&\r | |
408 | ((Facs->Flags & EFI_ACPI_4_0_64BIT_WAKE_SUPPORTED_F) != 0) &&\r | |
409 | ((Facs->Flags & EFI_ACPI_4_0_OSPM_64BIT_WAKE__F) != 0)) {\r | |
410 | // Both BIOS and OS wants 64bit vector\r | |
411 | if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r | |
412 | return TRUE;\r | |
413 | }\r | |
414 | }\r | |
415 | }\r | |
416 | return FALSE;\r | |
417 | }\r | |
418 | \r | |
1f569620 | 419 | /**\r |
420 | Jump to OS waking vector.\r | |
421 | The function will install boot script done PPI, report S3 resume status code, and then jump to OS waking vector.\r | |
422 | \r | |
423 | @param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT\r | |
424 | @param PeiS3ResumeState a pointer to a structure of PEI_S3_RESUME_STATE\r | |
425 | **/\r | |
426 | VOID\r | |
427 | EFIAPI\r | |
428 | S3ResumeBootOs (\r | |
429 | IN ACPI_S3_CONTEXT *AcpiS3Context,\r | |
430 | IN PEI_S3_RESUME_STATE *PeiS3ResumeState\r | |
431 | )\r | |
432 | {\r | |
433 | EFI_STATUS Status;\r | |
434 | EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs;\r | |
435 | ASM_TRANSFER_CONTROL AsmTransferControl;\r | |
436 | UINTN TempStackTop;\r | |
437 | UINTN TempStack[0x10];\r | |
438 | \r | |
439 | //\r | |
440 | // Restore IDT\r | |
441 | //\r | |
442 | AsmWriteIdtr (&PeiS3ResumeState->Idtr);\r | |
443 | \r | |
f5c941b1 | 444 | //\r |
445 | // NOTE: Because Debug Timer interrupt and system interrupts will be disabled \r | |
446 | // in BootScriptExecuteDxe, the rest code in S3ResumeBootOs() cannot be halted\r | |
447 | // by soft debugger.\r | |
448 | //\r | |
449 | \r | |
5c0687cc SZ |
450 | PERF_END (NULL, "ScriptExec", NULL, 0);\r |
451 | \r | |
1f569620 | 452 | //\r |
453 | // Install BootScriptDonePpi\r | |
454 | //\r | |
455 | Status = PeiServicesInstallPpi (&mPpiListPostScriptTable);\r | |
456 | ASSERT_EFI_ERROR (Status);\r | |
457 | \r | |
458 | //\r | |
459 | // Get ACPI Table Address\r | |
460 | //\r | |
461 | Facs = (EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable));\r | |
462 | \r | |
463 | if ((Facs == NULL) ||\r | |
464 | (Facs->Signature != EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||\r | |
465 | ((Facs->FirmwareWakingVector == 0) && (Facs->XFirmwareWakingVector == 0)) ) {\r | |
466 | CpuDeadLoop ();\r | |
467 | return ;\r | |
468 | }\r | |
469 | \r | |
1f569620 | 470 | //\r |
471 | // Install EndOfPeiPpi\r | |
472 | //\r | |
473 | Status = PeiServicesInstallPpi (&mPpiListEndOfPeiTable);\r | |
474 | ASSERT_EFI_ERROR (Status);\r | |
475 | \r | |
26c0ba77 SZ |
476 | //\r |
477 | // report status code on S3 resume\r | |
478 | //\r | |
479 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_SOFTWARE_PEI_MODULE | EFI_SW_PEI_PC_OS_WAKE);\r | |
480 | \r | |
1f569620 | 481 | PERF_CODE (\r |
482 | WriteToOsS3PerformanceData ();\r | |
483 | );\r | |
484 | \r | |
485 | AsmTransferControl = (ASM_TRANSFER_CONTROL)(UINTN)PeiS3ResumeState->AsmTransferControl;\r | |
486 | if (Facs->XFirmwareWakingVector != 0) {\r | |
487 | //\r | |
488 | // Switch to native waking vector\r | |
489 | //\r | |
490 | TempStackTop = (UINTN)&TempStack + sizeof(TempStack);\r | |
491 | if ((Facs->Version == EFI_ACPI_4_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_VERSION) &&\r | |
492 | ((Facs->Flags & EFI_ACPI_4_0_64BIT_WAKE_SUPPORTED_F) != 0) &&\r | |
493 | ((Facs->Flags & EFI_ACPI_4_0_OSPM_64BIT_WAKE__F) != 0)) {\r | |
494 | //\r | |
495 | // X64 long mode waking vector\r | |
496 | //\r | |
497 | DEBUG (( EFI_D_ERROR, "Transfer to 64bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));\r | |
498 | if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r | |
499 | AsmEnablePaging64 (\r | |
500 | 0x38,\r | |
501 | Facs->XFirmwareWakingVector,\r | |
502 | 0,\r | |
503 | 0,\r | |
504 | (UINT64)(UINTN)TempStackTop\r | |
505 | );\r | |
506 | } else {\r | |
507 | DEBUG (( EFI_D_ERROR, "Unsupported for 32bit DXE transfer to 64bit OS waking vector!\r\n"));\r | |
508 | ASSERT (FALSE);\r | |
509 | }\r | |
510 | } else {\r | |
511 | //\r | |
512 | // IA32 protected mode waking vector (Page disabled)\r | |
513 | //\r | |
514 | DEBUG (( EFI_D_ERROR, "Transfer to 32bit OS waking vector - %x\r\n", (UINTN)Facs->XFirmwareWakingVector));\r | |
515 | SwitchStack (\r | |
516 | (SWITCH_STACK_ENTRY_POINT) (UINTN) Facs->XFirmwareWakingVector,\r | |
517 | NULL,\r | |
518 | NULL,\r | |
519 | (VOID *)(UINTN)TempStackTop\r | |
520 | );\r | |
521 | }\r | |
522 | } else {\r | |
523 | //\r | |
524 | // 16bit Realmode waking vector\r | |
525 | //\r | |
526 | DEBUG (( EFI_D_ERROR, "Transfer to 16bit OS waking vector - %x\r\n", (UINTN)Facs->FirmwareWakingVector));\r | |
527 | AsmTransferControl (Facs->FirmwareWakingVector, 0x0);\r | |
528 | }\r | |
529 | \r | |
530 | //\r | |
531 | // Never run to here\r | |
532 | //\r | |
533 | CpuDeadLoop();\r | |
534 | }\r | |
535 | \r | |
536 | /**\r | |
537 | Restore S3 page table because we do not trust ACPINvs content.\r | |
538 | If BootScriptExector driver will not run in 64-bit mode, this function will do nothing. \r | |
539 | \r | |
540 | @param S3NvsPageTableAddress PageTableAddress in ACPINvs\r | |
d0bf5623 | 541 | @param Build4GPageTableOnly If BIOS just build 4G page table only\r |
1f569620 | 542 | **/\r |
543 | VOID\r | |
544 | RestoreS3PageTables (\r | |
d0bf5623 JY |
545 | IN UINTN S3NvsPageTableAddress,\r |
546 | IN BOOLEAN Build4GPageTableOnly\r | |
1f569620 | 547 | )\r |
548 | {\r | |
549 | if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r | |
550 | UINT32 RegEax;\r | |
c56b6566 | 551 | UINT32 RegEdx;\r |
1f569620 | 552 | UINT8 PhysicalAddressBits;\r |
553 | EFI_PHYSICAL_ADDRESS PageAddress;\r | |
554 | UINTN IndexOfPml4Entries;\r | |
555 | UINTN IndexOfPdpEntries;\r | |
556 | UINTN IndexOfPageDirectoryEntries;\r | |
c56b6566 JY |
557 | UINT32 NumberOfPml4EntriesNeeded;\r |
558 | UINT32 NumberOfPdpEntriesNeeded;\r | |
1f569620 | 559 | PAGE_MAP_AND_DIRECTORY_POINTER *PageMapLevel4Entry;\r |
560 | PAGE_MAP_AND_DIRECTORY_POINTER *PageMap;\r | |
561 | PAGE_MAP_AND_DIRECTORY_POINTER *PageDirectoryPointerEntry;\r | |
562 | PAGE_TABLE_ENTRY *PageDirectoryEntry;\r | |
c56b6566 JY |
563 | VOID *Hob;\r |
564 | BOOLEAN Page1GSupport;\r | |
565 | PAGE_TABLE_1G_ENTRY *PageDirectory1GEntry;\r | |
1f569620 | 566 | \r |
567 | //\r | |
568 | // NOTE: We have to ASSUME the page table generation format, because we do not know whole page table information.\r | |
569 | // The whole page table is too large to be saved in SMRAM.\r | |
570 | //\r | |
571 | // The assumption is : whole page table is allocated in CONTINOUS memory and CR3 points to TOP page.\r | |
572 | //\r | |
d0bf5623 | 573 | DEBUG ((EFI_D_ERROR, "S3NvsPageTableAddress - %x (%x)\n", (UINTN)S3NvsPageTableAddress, (UINTN)Build4GPageTableOnly));\r |
1f569620 | 574 | \r |
575 | //\r | |
576 | // By architecture only one PageMapLevel4 exists - so lets allocate storgage for it.\r | |
577 | //\r | |
578 | PageMap = (PAGE_MAP_AND_DIRECTORY_POINTER *)S3NvsPageTableAddress;\r | |
579 | S3NvsPageTableAddress += SIZE_4KB;\r | |
580 | \r | |
c56b6566 | 581 | Page1GSupport = FALSE;\r |
378175d2 JY |
582 | if (PcdGetBool(PcdUse1GPageTable)) {\r |
583 | AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);\r | |
584 | if (RegEax >= 0x80000001) {\r | |
585 | AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);\r | |
586 | if ((RegEdx & BIT26) != 0) {\r | |
587 | Page1GSupport = TRUE;\r | |
588 | }\r | |
c56b6566 JY |
589 | }\r |
590 | }\r | |
591 | \r | |
1f569620 | 592 | //\r |
593 | // Get physical address bits supported.\r | |
594 | //\r | |
c56b6566 JY |
595 | Hob = GetFirstHob (EFI_HOB_TYPE_CPU);\r |
596 | if (Hob != NULL) {\r | |
597 | PhysicalAddressBits = ((EFI_HOB_CPU *) Hob)->SizeOfMemorySpace;\r | |
1f569620 | 598 | } else {\r |
c56b6566 JY |
599 | AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);\r |
600 | if (RegEax >= 0x80000008) {\r | |
601 | AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);\r | |
602 | PhysicalAddressBits = (UINT8) RegEax;\r | |
603 | } else {\r | |
604 | PhysicalAddressBits = 36;\r | |
605 | }\r | |
1f569620 | 606 | }\r |
607 | \r | |
c56b6566 JY |
608 | //\r |
609 | // IA-32e paging translates 48-bit linear addresses to 52-bit physical addresses.\r | |
610 | //\r | |
611 | ASSERT (PhysicalAddressBits <= 52);\r | |
612 | if (PhysicalAddressBits > 48) {\r | |
613 | PhysicalAddressBits = 48;\r | |
614 | }\r | |
615 | \r | |
d0bf5623 JY |
616 | //\r |
617 | // NOTE: In order to save time to create full page table, we just create 4G page table by default.\r | |
618 | // And let PF handler in BootScript driver to create more on request.\r | |
619 | //\r | |
620 | if (Build4GPageTableOnly) {\r | |
621 | PhysicalAddressBits = 32;\r | |
622 | ZeroMem (PageMap, EFI_PAGES_TO_SIZE(2));\r | |
623 | }\r | |
1f569620 | 624 | //\r |
625 | // Calculate the table entries needed.\r | |
626 | //\r | |
627 | if (PhysicalAddressBits <= 39) {\r | |
628 | NumberOfPml4EntriesNeeded = 1;\r | |
c56b6566 | 629 | NumberOfPdpEntriesNeeded = (UINT32)LShiftU64 (1, (PhysicalAddressBits - 30));\r |
1f569620 | 630 | } else {\r |
c56b6566 | 631 | NumberOfPml4EntriesNeeded = (UINT32)LShiftU64 (1, (PhysicalAddressBits - 39));\r |
1f569620 | 632 | NumberOfPdpEntriesNeeded = 512;\r |
633 | }\r | |
634 | \r | |
635 | PageMapLevel4Entry = PageMap;\r | |
636 | PageAddress = 0;\r | |
637 | for (IndexOfPml4Entries = 0; IndexOfPml4Entries < NumberOfPml4EntriesNeeded; IndexOfPml4Entries++, PageMapLevel4Entry++) {\r | |
638 | //\r | |
639 | // Each PML4 entry points to a page of Page Directory Pointer entires.\r | |
640 | // So lets allocate space for them and fill them in in the IndexOfPdpEntries loop.\r | |
641 | //\r | |
642 | PageDirectoryPointerEntry = (PAGE_MAP_AND_DIRECTORY_POINTER *)S3NvsPageTableAddress;\r | |
643 | S3NvsPageTableAddress += SIZE_4KB;\r | |
644 | \r | |
645 | //\r | |
646 | // Make a PML4 Entry\r | |
647 | //\r | |
648 | PageMapLevel4Entry->Uint64 = (UINT64)(UINTN)PageDirectoryPointerEntry;\r | |
649 | PageMapLevel4Entry->Bits.ReadWrite = 1;\r | |
650 | PageMapLevel4Entry->Bits.Present = 1;\r | |
c56b6566 JY |
651 | \r |
652 | if (Page1GSupport) {\r | |
54d3b84e | 653 | PageDirectory1GEntry = (VOID *) PageDirectoryPointerEntry;\r |
1f569620 | 654 | \r |
c56b6566 | 655 | for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectory1GEntry++, PageAddress += SIZE_1GB) {\r |
1f569620 | 656 | //\r |
657 | // Fill in the Page Directory entries\r | |
658 | //\r | |
c56b6566 JY |
659 | PageDirectory1GEntry->Uint64 = (UINT64)PageAddress;\r |
660 | PageDirectory1GEntry->Bits.ReadWrite = 1;\r | |
661 | PageDirectory1GEntry->Bits.Present = 1;\r | |
662 | PageDirectory1GEntry->Bits.MustBe1 = 1;\r | |
663 | }\r | |
664 | } else {\r | |
665 | for (IndexOfPdpEntries = 0; IndexOfPdpEntries < NumberOfPdpEntriesNeeded; IndexOfPdpEntries++, PageDirectoryPointerEntry++) {\r | |
666 | //\r | |
667 | // Each Directory Pointer entries points to a page of Page Directory entires.\r | |
668 | // So allocate space for them and fill them in in the IndexOfPageDirectoryEntries loop.\r | |
669 | // \r | |
670 | PageDirectoryEntry = (PAGE_TABLE_ENTRY *)S3NvsPageTableAddress;\r | |
671 | S3NvsPageTableAddress += SIZE_4KB;\r | |
672 | \r | |
673 | //\r | |
674 | // Fill in a Page Directory Pointer Entries\r | |
675 | //\r | |
676 | PageDirectoryPointerEntry->Uint64 = (UINT64)(UINTN)PageDirectoryEntry;\r | |
677 | PageDirectoryPointerEntry->Bits.ReadWrite = 1;\r | |
678 | PageDirectoryPointerEntry->Bits.Present = 1;\r | |
679 | \r | |
680 | for (IndexOfPageDirectoryEntries = 0; IndexOfPageDirectoryEntries < 512; IndexOfPageDirectoryEntries++, PageDirectoryEntry++, PageAddress += SIZE_2MB) {\r | |
681 | //\r | |
682 | // Fill in the Page Directory entries\r | |
683 | //\r | |
684 | PageDirectoryEntry->Uint64 = (UINT64)PageAddress;\r | |
685 | PageDirectoryEntry->Bits.ReadWrite = 1;\r | |
686 | PageDirectoryEntry->Bits.Present = 1;\r | |
687 | PageDirectoryEntry->Bits.MustBe1 = 1;\r | |
688 | }\r | |
1f569620 | 689 | }\r |
690 | }\r | |
691 | }\r | |
692 | return ;\r | |
693 | } else {\r | |
694 | //\r | |
695 | // If DXE is running 32-bit mode, no need to establish page table.\r | |
696 | //\r | |
697 | return ;\r | |
698 | }\r | |
699 | }\r | |
700 | \r | |
701 | /**\r | |
702 | Jump to boot script executor driver.\r | |
703 | \r | |
704 | The function will close and lock SMRAM and then jump to boot script execute driver to executing S3 boot script table.\r | |
705 | \r | |
706 | @param AcpiS3Context a pointer to a structure of ACPI_S3_CONTEXT\r | |
707 | @param EfiBootScriptExecutorVariable The function entry to executing S3 boot Script table. This function is build in\r | |
708 | boot script execute driver\r | |
709 | **/\r | |
710 | VOID\r | |
711 | EFIAPI\r | |
712 | S3ResumeExecuteBootScript (\r | |
713 | IN ACPI_S3_CONTEXT *AcpiS3Context,\r | |
714 | IN BOOT_SCRIPT_EXECUTOR_VARIABLE *EfiBootScriptExecutorVariable\r | |
715 | )\r | |
716 | {\r | |
717 | EFI_STATUS Status;\r | |
718 | PEI_SMM_ACCESS_PPI *SmmAccess;\r | |
719 | UINTN Index;\r | |
720 | VOID *GuidHob;\r | |
721 | IA32_DESCRIPTOR *IdtDescriptor;\r | |
722 | VOID *IdtBuffer;\r | |
723 | PEI_S3_RESUME_STATE *PeiS3ResumeState;\r | |
abef469f | 724 | BOOLEAN InterruptStatus;\r |
1f569620 | 725 | \r |
726 | DEBUG ((EFI_D_ERROR, "S3ResumeExecuteBootScript()\n"));\r | |
727 | \r | |
728 | //\r | |
729 | // Attempt to use content from SMRAM first\r | |
730 | //\r | |
731 | GuidHob = GetFirstGuidHob (&gEfiAcpiVariableGuid);\r | |
732 | if (GuidHob != NULL) {\r | |
733 | //\r | |
734 | // Last step for SMM - send SMI for initialization\r | |
735 | //\r | |
736 | \r | |
737 | //\r | |
738 | // Send SMI to APs\r | |
739 | // \r | |
740 | SendSmiIpiAllExcludingSelf ();\r | |
741 | //\r | |
742 | // Send SMI to BSP\r | |
743 | //\r | |
744 | SendSmiIpi (GetApicId ());\r | |
745 | \r | |
746 | Status = PeiServicesLocatePpi (\r | |
747 | &gPeiSmmAccessPpiGuid,\r | |
748 | 0,\r | |
749 | NULL,\r | |
750 | (VOID **) &SmmAccess\r | |
751 | );\r | |
40ef06fc SZ |
752 | if (!EFI_ERROR (Status)) {\r |
753 | DEBUG ((EFI_D_ERROR, "Close all SMRAM regions before executing boot script\n"));\r | |
754 | \r | |
755 | for (Index = 0, Status = EFI_SUCCESS; !EFI_ERROR (Status); Index++) {\r | |
756 | Status = SmmAccess->Close ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);\r | |
757 | }\r | |
1f569620 | 758 | \r |
40ef06fc SZ |
759 | DEBUG ((EFI_D_ERROR, "Lock all SMRAM regions before executing boot script\n"));\r |
760 | \r | |
761 | for (Index = 0, Status = EFI_SUCCESS; !EFI_ERROR (Status); Index++) {\r | |
762 | Status = SmmAccess->Lock ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);\r | |
763 | }\r | |
1f569620 | 764 | }\r |
765 | }\r | |
766 | \r | |
767 | if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r | |
1f569620 | 768 | AsmWriteCr3 ((UINTN)AcpiS3Context->S3NvsPageTableAddress);\r |
769 | }\r | |
770 | \r | |
771 | if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {\r | |
772 | //\r | |
773 | // On some platform, such as ECP, a dispatch node in boot script table may execute a 32-bit PEIM which may need PeiServices\r | |
774 | // pointer. So PeiServices need preserve in (IDTBase- sizeof (UINTN)). \r | |
775 | //\r | |
776 | IdtDescriptor = (IA32_DESCRIPTOR *) (UINTN) (AcpiS3Context->IdtrProfile);\r | |
777 | //\r | |
778 | // Make sure the newly allcated IDT align with 16-bytes\r | |
779 | // \r | |
780 | IdtBuffer = AllocatePages (EFI_SIZE_TO_PAGES((IdtDescriptor->Limit + 1) + 16));\r | |
781 | ASSERT (IdtBuffer != NULL);\r | |
e47459e6 | 782 | //\r |
783 | // Additional 16 bytes allocated to save IA32 IDT descriptor and Pei Service Table Pointer\r | |
784 | // IA32 IDT descriptor will be used to setup IA32 IDT table for 32-bit Framework Boot Script code\r | |
785 | // \r | |
786 | ZeroMem (IdtBuffer, 16);\r | |
787 | AsmReadIdtr ((IA32_DESCRIPTOR *)IdtBuffer);\r | |
1f569620 | 788 | CopyMem ((VOID*)((UINT8*)IdtBuffer + 16),(VOID*)(IdtDescriptor->Base), (IdtDescriptor->Limit + 1));\r |
789 | IdtDescriptor->Base = (UINTN)((UINT8*)IdtBuffer + 16);\r | |
790 | *(UINTN*)(IdtDescriptor->Base - sizeof(UINTN)) = (UINTN)GetPeiServicesTablePointer ();\r | |
791 | }\r | |
792 | \r | |
abef469f | 793 | InterruptStatus = SaveAndDisableInterrupts ();\r |
1f569620 | 794 | //\r |
795 | // Need to make sure the GDT is loaded with values that support long mode and real mode.\r | |
796 | //\r | |
797 | AsmWriteGdtr (&mGdt);\r | |
abef469f | 798 | //\r |
799 | // update segment selectors per the new GDT.\r | |
800 | //\r | |
801 | AsmSetDataSelectors (DATA_SEGEMENT_SELECTOR);\r | |
802 | //\r | |
803 | // Restore interrupt state.\r | |
804 | //\r | |
805 | SetInterruptState (InterruptStatus);\r | |
1f569620 | 806 | \r |
807 | //\r | |
808 | // Prepare data for return back\r | |
809 | //\r | |
810 | PeiS3ResumeState = AllocatePool (sizeof(*PeiS3ResumeState));\r | |
811 | ASSERT (PeiS3ResumeState != NULL);\r | |
812 | DEBUG (( EFI_D_ERROR, "PeiS3ResumeState - %x\r\n", PeiS3ResumeState));\r | |
813 | PeiS3ResumeState->ReturnCs = 0x10;\r | |
814 | PeiS3ResumeState->ReturnEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)S3ResumeBootOs;\r | |
815 | PeiS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)(UINTN)&Status;\r | |
816 | //\r | |
817 | // Save IDT\r | |
818 | //\r | |
819 | AsmReadIdtr (&PeiS3ResumeState->Idtr);\r | |
820 | \r | |
5c0687cc SZ |
821 | PERF_START (NULL, "ScriptExec", NULL, 0);\r |
822 | \r | |
1f569620 | 823 | if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r |
824 | //\r | |
825 | // X64 S3 Resume\r | |
826 | //\r | |
827 | DEBUG (( EFI_D_ERROR, "Enable X64 and transfer control to Standalone Boot Script Executor\r\n"));\r | |
828 | \r | |
829 | //\r | |
830 | // Switch to long mode to complete resume.\r | |
831 | //\r | |
832 | AsmEnablePaging64 (\r | |
833 | 0x38,\r | |
834 | EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint,\r | |
835 | (UINT64)(UINTN)AcpiS3Context,\r | |
836 | (UINT64)(UINTN)PeiS3ResumeState,\r | |
837 | (UINT64)(UINTN)(AcpiS3Context->BootScriptStackBase + AcpiS3Context->BootScriptStackSize)\r | |
838 | );\r | |
839 | } else {\r | |
840 | //\r | |
841 | // IA32 S3 Resume\r | |
842 | //\r | |
843 | DEBUG (( EFI_D_ERROR, "transfer control to Standalone Boot Script Executor\r\n"));\r | |
844 | SwitchStack (\r | |
845 | (SWITCH_STACK_ENTRY_POINT) (UINTN) EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint,\r | |
846 | (VOID *)AcpiS3Context,\r | |
847 | (VOID *)PeiS3ResumeState,\r | |
848 | (VOID *)(UINTN)(AcpiS3Context->BootScriptStackBase + AcpiS3Context->BootScriptStackSize)\r | |
849 | );\r | |
850 | }\r | |
851 | \r | |
852 | //\r | |
853 | // Never run to here\r | |
854 | //\r | |
855 | CpuDeadLoop();\r | |
856 | }\r | |
857 | /**\r | |
858 | Restores the platform to its preboot configuration for an S3 resume and\r | |
859 | jumps to the OS waking vector.\r | |
860 | \r | |
861 | This function will restore the platform to its pre-boot configuration that was\r | |
862 | pre-stored in the boot script table and transfer control to OS waking vector.\r | |
863 | Upon invocation, this function is responsible for locating the following\r | |
864 | information before jumping to OS waking vector:\r | |
865 | - ACPI tables\r | |
866 | - boot script table\r | |
867 | - any other information that it needs\r | |
868 | \r | |
869 | The S3RestoreConfig() function then executes the pre-stored boot script table\r | |
870 | and transitions the platform to the pre-boot state. The boot script is recorded\r | |
871 | during regular boot using the EFI_S3_SAVE_STATE_PROTOCOL.Write() and\r | |
872 | EFI_S3_SMM_SAVE_STATE_PROTOCOL.Write() functions. Finally, this function\r | |
873 | transfers control to the OS waking vector. If the OS supports only a real-mode\r | |
874 | waking vector, this function will switch from flat mode to real mode before\r | |
875 | jumping to the waking vector. If all platform pre-boot configurations are\r | |
876 | successfully restored and all other necessary information is ready, this\r | |
877 | function will never return and instead will directly jump to the OS waking\r | |
878 | vector. If this function returns, it indicates that the attempt to resume\r | |
879 | from the ACPI S3 sleep state failed.\r | |
880 | \r | |
881 | @param[in] This Pointer to this instance of the PEI_S3_RESUME_PPI\r | |
882 | \r | |
883 | @retval EFI_ABORTED Execution of the S3 resume boot script table failed.\r | |
884 | @retval EFI_NOT_FOUND Some necessary information that is used for the S3\r | |
885 | resume boot path could not be located.\r | |
886 | \r | |
887 | **/\r | |
888 | EFI_STATUS\r | |
889 | EFIAPI\r | |
890 | S3RestoreConfig2 (\r | |
891 | IN EFI_PEI_S3_RESUME2_PPI *This\r | |
892 | )\r | |
893 | {\r | |
894 | EFI_STATUS Status;\r | |
895 | PEI_SMM_ACCESS_PPI *SmmAccess;\r | |
896 | UINTN Index;\r | |
897 | ACPI_S3_CONTEXT *AcpiS3Context;\r | |
1f569620 | 898 | EFI_PHYSICAL_ADDRESS TempEfiBootScriptExecutorVariable;\r |
899 | EFI_PHYSICAL_ADDRESS TempAcpiS3Context;\r | |
900 | BOOT_SCRIPT_EXECUTOR_VARIABLE *EfiBootScriptExecutorVariable;\r | |
901 | UINTN VarSize;\r | |
902 | EFI_SMRAM_DESCRIPTOR *SmramDescriptor;\r | |
903 | SMM_S3_RESUME_STATE *SmmS3ResumeState;\r | |
904 | VOID *GuidHob;\r | |
d0bf5623 | 905 | BOOLEAN Build4GPageTableOnly;\r |
abef469f | 906 | BOOLEAN InterruptStatus;\r |
1f569620 | 907 | \r |
48ee8e3e SZ |
908 | TempAcpiS3Context = 0;\r |
909 | TempEfiBootScriptExecutorVariable = 0;\r | |
910 | \r | |
1f569620 | 911 | DEBUG ((EFI_D_ERROR, "Enter S3 PEIM\r\n"));\r |
912 | \r | |
1f569620 | 913 | VarSize = sizeof (EFI_PHYSICAL_ADDRESS);\r |
914 | Status = RestoreLockBox (\r | |
915 | &gEfiAcpiVariableGuid,\r | |
916 | &TempAcpiS3Context,\r | |
917 | &VarSize\r | |
918 | );\r | |
919 | ASSERT_EFI_ERROR (Status);\r | |
920 | \r | |
1f569620 | 921 | Status = RestoreLockBox (\r |
922 | &gEfiAcpiS3ContextGuid,\r | |
923 | NULL,\r | |
924 | NULL\r | |
925 | );\r | |
926 | ASSERT_EFI_ERROR (Status);\r | |
927 | \r | |
48ee8e3e SZ |
928 | AcpiS3Context = (ACPI_S3_CONTEXT *)(UINTN)TempAcpiS3Context;\r |
929 | ASSERT (AcpiS3Context != NULL);\r | |
930 | \r | |
931 | VarSize = sizeof (EFI_PHYSICAL_ADDRESS);\r | |
1f569620 | 932 | Status = RestoreLockBox (\r |
933 | &gEfiBootScriptExecutorVariableGuid,\r | |
934 | &TempEfiBootScriptExecutorVariable,\r | |
935 | &VarSize\r | |
936 | );\r | |
937 | ASSERT_EFI_ERROR (Status);\r | |
938 | \r | |
939 | Status = RestoreLockBox (\r | |
940 | &gEfiBootScriptExecutorContextGuid,\r | |
941 | NULL,\r | |
942 | NULL\r | |
943 | );\r | |
944 | ASSERT_EFI_ERROR (Status);\r | |
945 | \r | |
946 | EfiBootScriptExecutorVariable = (BOOT_SCRIPT_EXECUTOR_VARIABLE *) (UINTN) TempEfiBootScriptExecutorVariable;\r | |
48ee8e3e | 947 | ASSERT (EfiBootScriptExecutorVariable != NULL);\r |
1f569620 | 948 | \r |
949 | DEBUG (( EFI_D_ERROR, "AcpiS3Context = %x\n", AcpiS3Context));\r | |
950 | DEBUG (( EFI_D_ERROR, "Waking Vector = %x\n", ((EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) ((UINTN) (AcpiS3Context->AcpiFacsTable)))->FirmwareWakingVector));\r | |
951 | DEBUG (( EFI_D_ERROR, "AcpiS3Context->AcpiFacsTable = %x\n", AcpiS3Context->AcpiFacsTable));\r | |
952 | DEBUG (( EFI_D_ERROR, "AcpiS3Context->S3NvsPageTableAddress = %x\n", AcpiS3Context->S3NvsPageTableAddress));\r | |
953 | DEBUG (( EFI_D_ERROR, "AcpiS3Context->S3DebugBufferAddress = %x\n", AcpiS3Context->S3DebugBufferAddress));\r | |
954 | DEBUG (( EFI_D_ERROR, "EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint = %x\n", EfiBootScriptExecutorVariable->BootScriptExecutorEntrypoint));\r | |
955 | \r | |
956 | //\r | |
957 | // Additional step for BootScript integrity - we only handle BootScript and BootScriptExecutor.\r | |
958 | // Script dispatch image and context (parameter) are handled by platform.\r | |
959 | // We just use restore all lock box in place, no need restore one by one.\r | |
960 | //\r | |
961 | Status = RestoreAllLockBoxInPlace ();\r | |
962 | ASSERT_EFI_ERROR (Status);\r | |
963 | if (EFI_ERROR (Status)) {\r | |
964 | // Something wrong\r | |
965 | CpuDeadLoop ();\r | |
966 | }\r | |
967 | \r | |
3a69f7cb | 968 | if (FeaturePcdGet (PcdDxeIplSwitchToLongMode)) {\r |
969 | //\r | |
970 | // Need reconstruct page table here, since we do not trust ACPINvs.\r | |
971 | //\r | |
d0bf5623 JY |
972 | if (IsLongModeWakingVector (AcpiS3Context)) {\r |
973 | Build4GPageTableOnly = FALSE;\r | |
974 | } else {\r | |
975 | Build4GPageTableOnly = TRUE;\r | |
976 | }\r | |
977 | RestoreS3PageTables ((UINTN)AcpiS3Context->S3NvsPageTableAddress, Build4GPageTableOnly);\r | |
3a69f7cb | 978 | }\r |
979 | \r | |
1f569620 | 980 | //\r |
981 | // Attempt to use content from SMRAM first\r | |
982 | //\r | |
983 | GuidHob = GetFirstGuidHob (&gEfiAcpiVariableGuid);\r | |
984 | if (GuidHob != NULL) {\r | |
40ef06fc SZ |
985 | Status = PeiServicesLocatePpi (\r |
986 | &gPeiSmmAccessPpiGuid,\r | |
987 | 0,\r | |
988 | NULL,\r | |
989 | (VOID **) &SmmAccess\r | |
990 | );\r | |
991 | for (Index = 0; !EFI_ERROR (Status); Index++) {\r | |
992 | Status = SmmAccess->Open ((EFI_PEI_SERVICES **)GetPeiServicesTablePointer (), SmmAccess, Index);\r | |
993 | }\r | |
994 | \r | |
1f569620 | 995 | SmramDescriptor = (EFI_SMRAM_DESCRIPTOR *) GET_GUID_HOB_DATA (GuidHob);\r |
996 | SmmS3ResumeState = (SMM_S3_RESUME_STATE *)(UINTN)SmramDescriptor->CpuStart;\r | |
997 | \r | |
998 | SmmS3ResumeState->ReturnCs = AsmReadCs ();\r | |
999 | SmmS3ResumeState->ReturnEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)S3ResumeExecuteBootScript;\r | |
1000 | SmmS3ResumeState->ReturnContext1 = (EFI_PHYSICAL_ADDRESS)(UINTN)AcpiS3Context;\r | |
1001 | SmmS3ResumeState->ReturnContext2 = (EFI_PHYSICAL_ADDRESS)(UINTN)EfiBootScriptExecutorVariable;\r | |
1002 | SmmS3ResumeState->ReturnStackPointer = (EFI_PHYSICAL_ADDRESS)(UINTN)&Status;\r | |
1003 | \r | |
1004 | DEBUG (( EFI_D_ERROR, "SMM S3 Signature = %x\n", SmmS3ResumeState->Signature));\r | |
1005 | DEBUG (( EFI_D_ERROR, "SMM S3 Stack Base = %x\n", SmmS3ResumeState->SmmS3StackBase));\r | |
1006 | DEBUG (( EFI_D_ERROR, "SMM S3 Stack Size = %x\n", SmmS3ResumeState->SmmS3StackSize));\r | |
1007 | DEBUG (( EFI_D_ERROR, "SMM S3 Resume Entry Point = %x\n", SmmS3ResumeState->SmmS3ResumeEntryPoint));\r | |
1008 | DEBUG (( EFI_D_ERROR, "SMM S3 CR0 = %x\n", SmmS3ResumeState->SmmS3Cr0));\r | |
1009 | DEBUG (( EFI_D_ERROR, "SMM S3 CR3 = %x\n", SmmS3ResumeState->SmmS3Cr3));\r | |
1010 | DEBUG (( EFI_D_ERROR, "SMM S3 CR4 = %x\n", SmmS3ResumeState->SmmS3Cr4));\r | |
1011 | DEBUG (( EFI_D_ERROR, "SMM S3 Return CS = %x\n", SmmS3ResumeState->ReturnCs));\r | |
1012 | DEBUG (( EFI_D_ERROR, "SMM S3 Return Entry Point = %x\n", SmmS3ResumeState->ReturnEntryPoint));\r | |
1013 | DEBUG (( EFI_D_ERROR, "SMM S3 Return Context1 = %x\n", SmmS3ResumeState->ReturnContext1));\r | |
1014 | DEBUG (( EFI_D_ERROR, "SMM S3 Return Context2 = %x\n", SmmS3ResumeState->ReturnContext2));\r | |
1015 | DEBUG (( EFI_D_ERROR, "SMM S3 Return Stack Pointer = %x\n", SmmS3ResumeState->ReturnStackPointer));\r | |
1016 | DEBUG (( EFI_D_ERROR, "SMM S3 Smst = %x\n", SmmS3ResumeState->Smst));\r | |
1017 | \r | |
1f569620 | 1018 | if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_32) {\r |
1019 | SwitchStack (\r | |
1020 | (SWITCH_STACK_ENTRY_POINT)(UINTN)SmmS3ResumeState->SmmS3ResumeEntryPoint,\r | |
1021 | (VOID *)AcpiS3Context,\r | |
1022 | 0,\r | |
1023 | (VOID *)(UINTN)(SmmS3ResumeState->SmmS3StackBase + SmmS3ResumeState->SmmS3StackSize)\r | |
1024 | );\r | |
1025 | }\r | |
1026 | if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_64) {\r | |
1027 | //\r | |
1028 | // Switch to long mode to complete resume.\r | |
1029 | //\r | |
1030 | \r | |
abef469f | 1031 | InterruptStatus = SaveAndDisableInterrupts ();\r |
1f569620 | 1032 | //\r |
1033 | // Need to make sure the GDT is loaded with values that support long mode and real mode.\r | |
1034 | //\r | |
1035 | AsmWriteGdtr (&mGdt);\r | |
abef469f | 1036 | //\r |
1037 | // update segment selectors per the new GDT.\r | |
1038 | // \r | |
1039 | AsmSetDataSelectors (DATA_SEGEMENT_SELECTOR);\r | |
1040 | //\r | |
1041 | // Restore interrupt state.\r | |
1042 | //\r | |
1043 | SetInterruptState (InterruptStatus);\r | |
1044 | \r | |
1f569620 | 1045 | AsmWriteCr3 ((UINTN)SmmS3ResumeState->SmmS3Cr3);\r |
f5c941b1 | 1046 | \r |
1047 | //\r | |
1048 | // Disable interrupt of Debug timer, since IDT table cannot work in long mode.\r | |
1049 | // NOTE: On x64 platforms, because DisablePaging64() will disable interrupts,\r | |
1050 | // the code in S3ResumeExecuteBootScript() cannot be halted by soft debugger.\r | |
1051 | //\r | |
1052 | SaveAndSetDebugTimerInterrupt (FALSE);\r | |
1053 | \r | |
1f569620 | 1054 | AsmEnablePaging64 (\r |
1055 | 0x38,\r | |
1056 | SmmS3ResumeState->SmmS3ResumeEntryPoint,\r | |
1057 | (UINT64)(UINTN)AcpiS3Context,\r | |
1058 | 0,\r | |
1059 | SmmS3ResumeState->SmmS3StackBase + SmmS3ResumeState->SmmS3StackSize\r | |
1060 | );\r | |
1061 | }\r | |
1062 | \r | |
1063 | }\r | |
1064 | \r | |
1065 | S3ResumeExecuteBootScript (AcpiS3Context, EfiBootScriptExecutorVariable );\r | |
1066 | return EFI_SUCCESS;\r | |
1067 | }\r | |
1068 | /**\r | |
1069 | Main entry for S3 Resume PEIM.\r | |
1070 | \r | |
1071 | This routine is to install EFI_PEI_S3_RESUME2_PPI.\r | |
1072 | \r | |
1073 | @param FileHandle Handle of the file being invoked.\r | |
1074 | @param PeiServices Pointer to PEI Services table.\r | |
1075 | \r | |
1076 | @retval EFI_SUCCESS S3Resume Ppi is installed successfully.\r | |
1077 | \r | |
1078 | **/\r | |
1079 | EFI_STATUS\r | |
1080 | EFIAPI\r | |
1081 | PeimS3ResumeEntryPoint (\r | |
1082 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
1083 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
1084 | )\r | |
1085 | {\r | |
1086 | EFI_STATUS Status;\r | |
1087 | \r | |
1088 | //\r | |
1089 | // Install S3 Resume Ppi\r | |
1090 | //\r | |
1091 | Status = (**PeiServices).InstallPpi (PeiServices, &mPpiList);\r | |
1092 | ASSERT_EFI_ERROR (Status);\r | |
1093 | \r | |
1094 | return EFI_SUCCESS;\r | |
1095 | }\r | |
1096 | \r |