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529a5a86 MK |
1 | /** @file\r |
2 | Code for Processor S3 restoration\r | |
3 | \r | |
02031cfc | 4 | Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r |
0acd8697 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
529a5a86 MK |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "PiSmmCpuDxeSmm.h"\r | |
10 | \r | |
e21e355e | 11 | #pragma pack(1)\r |
529a5a86 MK |
12 | typedef struct {\r |
13 | UINTN Lock;\r | |
14 | VOID *StackStart;\r | |
15 | UINTN StackSize;\r | |
16 | VOID *ApFunction;\r | |
17 | IA32_DESCRIPTOR GdtrProfile;\r | |
18 | IA32_DESCRIPTOR IdtrProfile;\r | |
19 | UINT32 BufferStart;\r | |
20 | UINT32 Cr3;\r | |
e21e355e | 21 | UINTN InitializeFloatingPointUnitsAddress;\r |
529a5a86 | 22 | } MP_CPU_EXCHANGE_INFO;\r |
e21e355e | 23 | #pragma pack()\r |
529a5a86 MK |
24 | \r |
25 | typedef struct {\r | |
26 | UINT8 *RendezvousFunnelAddress;\r | |
27 | UINTN PModeEntryOffset;\r | |
28 | UINTN FlatJumpOffset;\r | |
29 | UINTN Size;\r | |
30 | UINTN LModeEntryOffset;\r | |
31 | UINTN LongJumpOffset;\r | |
32 | } MP_ASSEMBLY_ADDRESS_MAP;\r | |
33 | \r | |
6c4c15fa | 34 | //\r |
93324390 | 35 | // Flags used when program the register.\r |
6c4c15fa | 36 | //\r |
93324390 | 37 | typedef struct {\r |
9bae7811 ED |
38 | volatile UINTN MemoryMappedLock; // Spinlock used to program mmio\r |
39 | volatile UINT32 *CoreSemaphoreCount; // Semaphore container used to program\r | |
40 | // core level semaphore.\r | |
41 | volatile UINT32 *PackageSemaphoreCount; // Semaphore container used to program\r | |
42 | // package level semaphore.\r | |
93324390 | 43 | } PROGRAM_CPU_REGISTER_FLAGS;\r |
6c4c15fa | 44 | \r |
7677b4db ED |
45 | //\r |
46 | // Signal that SMM BASE relocation is complete.\r | |
47 | //\r | |
48 | volatile BOOLEAN mInitApsAfterSmmBaseReloc;\r | |
49 | \r | |
529a5a86 MK |
50 | /**\r |
51 | Get starting address and size of the rendezvous entry for APs.\r | |
52 | Information for fixing a jump instruction in the code is also returned.\r | |
53 | \r | |
54 | @param AddressMap Output buffer for address map information.\r | |
55 | **/\r | |
56 | VOID *\r | |
57 | EFIAPI\r | |
58 | AsmGetAddressMap (\r | |
59 | MP_ASSEMBLY_ADDRESS_MAP *AddressMap\r | |
60 | );\r | |
61 | \r | |
62 | #define LEGACY_REGION_SIZE (2 * 0x1000)\r | |
63 | #define LEGACY_REGION_BASE (0xA0000 - LEGACY_REGION_SIZE)\r | |
529a5a86 | 64 | \r |
93324390 | 65 | PROGRAM_CPU_REGISTER_FLAGS mCpuFlags;\r |
529a5a86 | 66 | ACPI_CPU_DATA mAcpiCpuData;\r |
c773514d | 67 | volatile UINT32 mNumberToFinish;\r |
529a5a86 MK |
68 | MP_CPU_EXCHANGE_INFO *mExchangeInfo;\r |
69 | BOOLEAN mRestoreSmmConfigurationInS3 = FALSE;\r | |
529a5a86 | 70 | \r |
0bdc9e75 SZ |
71 | //\r |
72 | // S3 boot flag\r | |
73 | //\r | |
74 | BOOLEAN mSmmS3Flag = FALSE;\r | |
75 | \r | |
76 | //\r | |
77 | // Pointer to structure used during S3 Resume\r | |
78 | //\r | |
79 | SMM_S3_RESUME_STATE *mSmmS3ResumeState = NULL;\r | |
80 | \r | |
b10d5ddc SZ |
81 | BOOLEAN mAcpiS3Enable = TRUE;\r |
82 | \r | |
4a0f88dd JF |
83 | UINT8 *mApHltLoopCode = NULL;\r |
84 | UINT8 mApHltLoopCodeTemplate[] = {\r | |
ec8a3877 JF |
85 | 0x8B, 0x44, 0x24, 0x04, // mov eax, dword ptr [esp+4]\r |
86 | 0xF0, 0xFF, 0x08, // lock dec dword ptr [eax]\r | |
87 | 0xFA, // cli\r | |
88 | 0xF4, // hlt\r | |
89 | 0xEB, 0xFC // jmp $-2\r | |
4a0f88dd JF |
90 | };\r |
91 | \r | |
529a5a86 MK |
92 | /**\r |
93 | Sync up the MTRR values for all processors.\r | |
94 | \r | |
95 | @param MtrrTable Table holding fixed/variable MTRR values to be loaded.\r | |
96 | **/\r | |
97 | VOID\r | |
98 | EFIAPI\r | |
99 | LoadMtrrData (\r | |
100 | EFI_PHYSICAL_ADDRESS MtrrTable\r | |
101 | )\r | |
102 | /*++\r | |
103 | \r | |
104 | Routine Description:\r | |
105 | \r | |
106 | Sync up the MTRR values for all processors.\r | |
107 | \r | |
108 | Arguments:\r | |
109 | \r | |
110 | Returns:\r | |
111 | None\r | |
112 | \r | |
113 | --*/\r | |
114 | {\r | |
115 | MTRR_SETTINGS *MtrrSettings;\r | |
116 | \r | |
117 | MtrrSettings = (MTRR_SETTINGS *) (UINTN) MtrrTable;\r | |
118 | MtrrSetAllMtrrs (MtrrSettings);\r | |
119 | }\r | |
120 | \r | |
121 | /**\r | |
93324390 | 122 | Increment semaphore by 1.\r |
529a5a86 | 123 | \r |
93324390 | 124 | @param Sem IN: 32-bit unsigned integer\r |
529a5a86 | 125 | \r |
93324390 ED |
126 | **/\r |
127 | VOID\r | |
128 | S3ReleaseSemaphore (\r | |
129 | IN OUT volatile UINT32 *Sem\r | |
130 | )\r | |
131 | {\r | |
132 | InterlockedIncrement (Sem);\r | |
133 | }\r | |
134 | \r | |
135 | /**\r | |
136 | Decrement the semaphore by 1 if it is not zero.\r | |
529a5a86 | 137 | \r |
93324390 ED |
138 | Performs an atomic decrement operation for semaphore.\r |
139 | The compare exchange operation must be performed using\r | |
140 | MP safe mechanisms.\r | |
141 | \r | |
142 | @param Sem IN: 32-bit unsigned integer\r | |
143 | \r | |
144 | **/\r | |
145 | VOID\r | |
146 | S3WaitForSemaphore (\r | |
147 | IN OUT volatile UINT32 *Sem\r | |
148 | )\r | |
149 | {\r | |
150 | UINT32 Value;\r | |
151 | \r | |
152 | do {\r | |
153 | Value = *Sem;\r | |
154 | } while (Value == 0 ||\r | |
155 | InterlockedCompareExchange32 (\r | |
156 | Sem,\r | |
157 | Value,\r | |
158 | Value - 1\r | |
159 | ) != Value);\r | |
160 | }\r | |
161 | \r | |
162 | /**\r | |
163 | Initialize the CPU registers from a register table.\r | |
164 | \r | |
165 | @param[in] RegisterTable The register table for this AP.\r | |
166 | @param[in] ApLocation AP location info for this ap.\r | |
167 | @param[in] CpuStatus CPU status info for this CPU.\r | |
168 | @param[in] CpuFlags Flags data structure used when program the register.\r | |
169 | \r | |
170 | @note This service could be called by BSP/APs.\r | |
529a5a86 MK |
171 | **/\r |
172 | VOID\r | |
93324390 ED |
173 | ProgramProcessorRegister (\r |
174 | IN CPU_REGISTER_TABLE *RegisterTable,\r | |
175 | IN EFI_CPU_PHYSICAL_LOCATION *ApLocation,\r | |
176 | IN CPU_STATUS_INFORMATION *CpuStatus,\r | |
177 | IN PROGRAM_CPU_REGISTER_FLAGS *CpuFlags\r | |
529a5a86 MK |
178 | )\r |
179 | {\r | |
180 | CPU_REGISTER_TABLE_ENTRY *RegisterTableEntry;\r | |
181 | UINTN Index;\r | |
182 | UINTN Value;\r | |
93324390 ED |
183 | CPU_REGISTER_TABLE_ENTRY *RegisterTableEntryHead;\r |
184 | volatile UINT32 *SemaphorePtr;\r | |
185 | UINT32 FirstThread;\r | |
186 | UINT32 PackageThreadsCount;\r | |
187 | UINT32 CurrentThread;\r | |
188 | UINTN ProcessorIndex;\r | |
93324390 ED |
189 | UINTN ValidThreadCount;\r |
190 | UINT32 *ValidCoreCountPerPackage;\r | |
529a5a86 MK |
191 | \r |
192 | //\r | |
193 | // Traverse Register Table of this logical processor\r | |
194 | //\r | |
93324390 ED |
195 | RegisterTableEntryHead = (CPU_REGISTER_TABLE_ENTRY *) (UINTN) RegisterTable->RegisterTableEntry;\r |
196 | \r | |
197 | for (Index = 0; Index < RegisterTable->TableLength; Index++) {\r | |
198 | \r | |
199 | RegisterTableEntry = &RegisterTableEntryHead[Index];\r | |
200 | \r | |
529a5a86 MK |
201 | //\r |
202 | // Check the type of specified register\r | |
203 | //\r | |
204 | switch (RegisterTableEntry->RegisterType) {\r | |
205 | //\r | |
206 | // The specified register is Control Register\r | |
207 | //\r | |
208 | case ControlRegister:\r | |
209 | switch (RegisterTableEntry->Index) {\r | |
210 | case 0:\r | |
211 | Value = AsmReadCr0 ();\r | |
212 | Value = (UINTN) BitFieldWrite64 (\r | |
213 | Value,\r | |
214 | RegisterTableEntry->ValidBitStart,\r | |
215 | RegisterTableEntry->ValidBitStart + RegisterTableEntry->ValidBitLength - 1,\r | |
216 | (UINTN) RegisterTableEntry->Value\r | |
217 | );\r | |
218 | AsmWriteCr0 (Value);\r | |
219 | break;\r | |
220 | case 2:\r | |
221 | Value = AsmReadCr2 ();\r | |
222 | Value = (UINTN) BitFieldWrite64 (\r | |
223 | Value,\r | |
224 | RegisterTableEntry->ValidBitStart,\r | |
225 | RegisterTableEntry->ValidBitStart + RegisterTableEntry->ValidBitLength - 1,\r | |
226 | (UINTN) RegisterTableEntry->Value\r | |
227 | );\r | |
228 | AsmWriteCr2 (Value);\r | |
229 | break;\r | |
230 | case 3:\r | |
231 | Value = AsmReadCr3 ();\r | |
232 | Value = (UINTN) BitFieldWrite64 (\r | |
233 | Value,\r | |
234 | RegisterTableEntry->ValidBitStart,\r | |
235 | RegisterTableEntry->ValidBitStart + RegisterTableEntry->ValidBitLength - 1,\r | |
236 | (UINTN) RegisterTableEntry->Value\r | |
237 | );\r | |
238 | AsmWriteCr3 (Value);\r | |
239 | break;\r | |
240 | case 4:\r | |
241 | Value = AsmReadCr4 ();\r | |
242 | Value = (UINTN) BitFieldWrite64 (\r | |
243 | Value,\r | |
244 | RegisterTableEntry->ValidBitStart,\r | |
245 | RegisterTableEntry->ValidBitStart + RegisterTableEntry->ValidBitLength - 1,\r | |
246 | (UINTN) RegisterTableEntry->Value\r | |
247 | );\r | |
248 | AsmWriteCr4 (Value);\r | |
249 | break;\r | |
250 | default:\r | |
251 | break;\r | |
252 | }\r | |
253 | break;\r | |
254 | //\r | |
255 | // The specified register is Model Specific Register\r | |
256 | //\r | |
257 | case Msr:\r | |
258 | //\r | |
259 | // If this function is called to restore register setting after INIT signal,\r | |
260 | // there is no need to restore MSRs in register table.\r | |
261 | //\r | |
262 | if (RegisterTableEntry->ValidBitLength >= 64) {\r | |
263 | //\r | |
264 | // If length is not less than 64 bits, then directly write without reading\r | |
265 | //\r | |
266 | AsmWriteMsr64 (\r | |
267 | RegisterTableEntry->Index,\r | |
268 | RegisterTableEntry->Value\r | |
269 | );\r | |
270 | } else {\r | |
529a5a86 MK |
271 | //\r |
272 | // Set the bit section according to bit start and length\r | |
273 | //\r | |
274 | AsmMsrBitFieldWrite64 (\r | |
275 | RegisterTableEntry->Index,\r | |
276 | RegisterTableEntry->ValidBitStart,\r | |
277 | RegisterTableEntry->ValidBitStart + RegisterTableEntry->ValidBitLength - 1,\r | |
278 | RegisterTableEntry->Value\r | |
279 | );\r | |
529a5a86 MK |
280 | }\r |
281 | break;\r | |
282 | //\r | |
6c4c15fa JF |
283 | // MemoryMapped operations\r |
284 | //\r | |
285 | case MemoryMapped:\r | |
93324390 | 286 | AcquireSpinLock (&CpuFlags->MemoryMappedLock);\r |
6c4c15fa | 287 | MmioBitFieldWrite32 (\r |
30b7a50b | 288 | (UINTN)(RegisterTableEntry->Index | LShiftU64 (RegisterTableEntry->HighIndex, 32)),\r |
6c4c15fa JF |
289 | RegisterTableEntry->ValidBitStart,\r |
290 | RegisterTableEntry->ValidBitStart + RegisterTableEntry->ValidBitLength - 1,\r | |
291 | (UINT32)RegisterTableEntry->Value\r | |
292 | );\r | |
93324390 | 293 | ReleaseSpinLock (&CpuFlags->MemoryMappedLock);\r |
6c4c15fa JF |
294 | break;\r |
295 | //\r | |
529a5a86 MK |
296 | // Enable or disable cache\r |
297 | //\r | |
298 | case CacheControl:\r | |
299 | //\r | |
300 | // If value of the entry is 0, then disable cache. Otherwise, enable cache.\r | |
301 | //\r | |
302 | if (RegisterTableEntry->Value == 0) {\r | |
303 | AsmDisableCache ();\r | |
304 | } else {\r | |
305 | AsmEnableCache ();\r | |
306 | }\r | |
307 | break;\r | |
308 | \r | |
93324390 ED |
309 | case Semaphore:\r |
310 | // Semaphore works logic like below:\r | |
311 | //\r | |
312 | // V(x) = LibReleaseSemaphore (Semaphore[FirstThread + x]);\r | |
313 | // P(x) = LibWaitForSemaphore (Semaphore[FirstThread + x]);\r | |
314 | //\r | |
315 | // All threads (T0...Tn) waits in P() line and continues running\r | |
316 | // together.\r | |
317 | //\r | |
318 | //\r | |
319 | // T0 T1 ... Tn\r | |
320 | //\r | |
321 | // V(0...n) V(0...n) ... V(0...n)\r | |
322 | // n * P(0) n * P(1) ... n * P(n)\r | |
323 | //\r | |
324 | ASSERT (\r | |
e07e3ceb | 325 | (ApLocation != NULL) &&\r |
93324390 | 326 | (CpuStatus->ValidCoreCountPerPackage != 0) &&\r |
9bae7811 ED |
327 | (CpuFlags->CoreSemaphoreCount != NULL) &&\r |
328 | (CpuFlags->PackageSemaphoreCount != NULL)\r | |
93324390 | 329 | );\r |
93324390 ED |
330 | switch (RegisterTableEntry->Value) {\r |
331 | case CoreDepType:\r | |
9bae7811 | 332 | SemaphorePtr = CpuFlags->CoreSemaphoreCount;\r |
93324390 ED |
333 | //\r |
334 | // Get Offset info for the first thread in the core which current thread belongs to.\r | |
335 | //\r | |
336 | FirstThread = (ApLocation->Package * CpuStatus->MaxCoreCount + ApLocation->Core) * CpuStatus->MaxThreadCount;\r | |
337 | CurrentThread = FirstThread + ApLocation->Thread;\r | |
338 | //\r | |
339 | // First Notify all threads in current Core that this thread has ready.\r | |
340 | //\r | |
341 | for (ProcessorIndex = 0; ProcessorIndex < CpuStatus->MaxThreadCount; ProcessorIndex ++) {\r | |
342 | S3ReleaseSemaphore (&SemaphorePtr[FirstThread + ProcessorIndex]);\r | |
343 | }\r | |
344 | //\r | |
345 | // Second, check whether all valid threads in current core have ready.\r | |
346 | //\r | |
347 | for (ProcessorIndex = 0; ProcessorIndex < CpuStatus->MaxThreadCount; ProcessorIndex ++) {\r | |
348 | S3WaitForSemaphore (&SemaphorePtr[CurrentThread]);\r | |
349 | }\r | |
350 | break;\r | |
351 | \r | |
352 | case PackageDepType:\r | |
9bae7811 | 353 | SemaphorePtr = CpuFlags->PackageSemaphoreCount;\r |
93324390 ED |
354 | ValidCoreCountPerPackage = (UINT32 *)(UINTN)CpuStatus->ValidCoreCountPerPackage;\r |
355 | //\r | |
356 | // Get Offset info for the first thread in the package which current thread belongs to.\r | |
357 | //\r | |
358 | FirstThread = ApLocation->Package * CpuStatus->MaxCoreCount * CpuStatus->MaxThreadCount;\r | |
359 | //\r | |
360 | // Get the possible threads count for current package.\r | |
361 | //\r | |
362 | PackageThreadsCount = CpuStatus->MaxThreadCount * CpuStatus->MaxCoreCount;\r | |
363 | CurrentThread = FirstThread + CpuStatus->MaxThreadCount * ApLocation->Core + ApLocation->Thread;\r | |
364 | //\r | |
365 | // Get the valid thread count for current package.\r | |
366 | //\r | |
367 | ValidThreadCount = CpuStatus->MaxThreadCount * ValidCoreCountPerPackage[ApLocation->Package];\r | |
368 | \r | |
369 | //\r | |
370 | // Different packages may have different valid cores in them. If driver maintail clearly\r | |
371 | // cores number in different packages, the logic will be much complicated.\r | |
372 | // Here driver just simply records the max core number in all packages and use it as expect\r | |
373 | // core number for all packages.\r | |
374 | // In below two steps logic, first current thread will Release semaphore for each thread\r | |
375 | // in current package. Maybe some threads are not valid in this package, but driver don't\r | |
376 | // care. Second, driver will let current thread wait semaphore for all valid threads in\r | |
377 | // current package. Because only the valid threads will do release semaphore for this\r | |
378 | // thread, driver here only need to wait the valid thread count.\r | |
379 | //\r | |
380 | \r | |
381 | //\r | |
382 | // First Notify all threads in current package that this thread has ready.\r | |
383 | //\r | |
384 | for (ProcessorIndex = 0; ProcessorIndex < PackageThreadsCount ; ProcessorIndex ++) {\r | |
385 | S3ReleaseSemaphore (&SemaphorePtr[FirstThread + ProcessorIndex]);\r | |
386 | }\r | |
387 | //\r | |
388 | // Second, check whether all valid threads in current package have ready.\r | |
389 | //\r | |
390 | for (ProcessorIndex = 0; ProcessorIndex < ValidThreadCount; ProcessorIndex ++) {\r | |
391 | S3WaitForSemaphore (&SemaphorePtr[CurrentThread]);\r | |
392 | }\r | |
393 | break;\r | |
394 | \r | |
395 | default:\r | |
396 | break;\r | |
397 | }\r | |
398 | break;\r | |
399 | \r | |
529a5a86 MK |
400 | default:\r |
401 | break;\r | |
402 | }\r | |
403 | }\r | |
404 | }\r | |
405 | \r | |
93324390 ED |
406 | /**\r |
407 | \r | |
408 | Set Processor register for one AP.\r | |
e07e3ceb | 409 | \r |
93324390 ED |
410 | @param PreSmmRegisterTable Use pre Smm register table or register table.\r |
411 | \r | |
412 | **/\r | |
413 | VOID\r | |
414 | SetRegister (\r | |
415 | IN BOOLEAN PreSmmRegisterTable\r | |
416 | )\r | |
417 | {\r | |
418 | CPU_REGISTER_TABLE *RegisterTable;\r | |
419 | CPU_REGISTER_TABLE *RegisterTables;\r | |
420 | UINT32 InitApicId;\r | |
421 | UINTN ProcIndex;\r | |
422 | UINTN Index;\r | |
423 | \r | |
424 | if (PreSmmRegisterTable) {\r | |
425 | RegisterTables = (CPU_REGISTER_TABLE *)(UINTN)mAcpiCpuData.PreSmmInitRegisterTable;\r | |
426 | } else {\r | |
427 | RegisterTables = (CPU_REGISTER_TABLE *)(UINTN)mAcpiCpuData.RegisterTable;\r | |
428 | }\r | |
429 | \r | |
430 | InitApicId = GetInitialApicId ();\r | |
431 | RegisterTable = NULL;\r | |
7db4034f | 432 | ProcIndex = (UINTN)-1;\r |
93324390 ED |
433 | for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) {\r |
434 | if (RegisterTables[Index].InitialApicId == InitApicId) {\r | |
435 | RegisterTable = &RegisterTables[Index];\r | |
436 | ProcIndex = Index;\r | |
437 | break;\r | |
438 | }\r | |
439 | }\r | |
440 | ASSERT (RegisterTable != NULL);\r | |
441 | \r | |
442 | if (mAcpiCpuData.ApLocation != 0) {\r | |
443 | ProgramProcessorRegister (\r | |
444 | RegisterTable,\r | |
445 | (EFI_CPU_PHYSICAL_LOCATION *)(UINTN)mAcpiCpuData.ApLocation + ProcIndex,\r | |
446 | &mAcpiCpuData.CpuStatus,\r | |
447 | &mCpuFlags\r | |
448 | );\r | |
449 | } else {\r | |
450 | ProgramProcessorRegister (\r | |
451 | RegisterTable,\r | |
452 | NULL,\r | |
453 | &mAcpiCpuData.CpuStatus,\r | |
454 | &mCpuFlags\r | |
455 | );\r | |
456 | }\r | |
457 | }\r | |
458 | \r | |
529a5a86 | 459 | /**\r |
7677b4db | 460 | AP initialization before then after SMBASE relocation in the S3 boot path.\r |
529a5a86 MK |
461 | **/\r |
462 | VOID\r | |
94744aa2 | 463 | InitializeAp (\r |
529a5a86 MK |
464 | VOID\r |
465 | )\r | |
466 | {\r | |
7677b4db ED |
467 | UINTN TopOfStack;\r |
468 | UINT8 Stack[128];\r | |
529a5a86 MK |
469 | \r |
470 | LoadMtrrData (mAcpiCpuData.MtrrTable);\r | |
471 | \r | |
93324390 | 472 | SetRegister (TRUE);\r |
7677b4db | 473 | \r |
529a5a86 MK |
474 | //\r |
475 | // Count down the number with lock mechanism.\r | |
476 | //\r | |
477 | InterlockedDecrement (&mNumberToFinish);\r | |
529a5a86 | 478 | \r |
7677b4db ED |
479 | //\r |
480 | // Wait for BSP to signal SMM Base relocation done.\r | |
481 | //\r | |
482 | while (!mInitApsAfterSmmBaseReloc) {\r | |
483 | CpuPause ();\r | |
484 | }\r | |
529a5a86 MK |
485 | \r |
486 | ProgramVirtualWireMode ();\r | |
487 | DisableLvtInterrupts ();\r | |
488 | \r | |
93324390 | 489 | SetRegister (FALSE);\r |
529a5a86 MK |
490 | \r |
491 | //\r | |
ec8a3877 | 492 | // Place AP into the safe code, count down the number with lock mechanism in the safe code.\r |
4a0f88dd | 493 | //\r |
672b80c8 MK |
494 | TopOfStack = (UINTN) Stack + sizeof (Stack);\r |
495 | TopOfStack &= ~(UINTN) (CPU_STACK_ALIGNMENT - 1);\r | |
4a0f88dd | 496 | CopyMem ((VOID *) (UINTN) mApHltLoopCode, mApHltLoopCodeTemplate, sizeof (mApHltLoopCodeTemplate));\r |
672b80c8 | 497 | TransferApToSafeState ((UINTN)mApHltLoopCode, TopOfStack, (UINTN)&mNumberToFinish);\r |
529a5a86 MK |
498 | }\r |
499 | \r | |
500 | /**\r | |
501 | Prepares startup vector for APs.\r | |
502 | \r | |
503 | This function prepares startup vector for APs.\r | |
504 | \r | |
505 | @param WorkingBuffer The address of the work buffer.\r | |
506 | **/\r | |
507 | VOID\r | |
508 | PrepareApStartupVector (\r | |
509 | EFI_PHYSICAL_ADDRESS WorkingBuffer\r | |
510 | )\r | |
511 | {\r | |
512 | EFI_PHYSICAL_ADDRESS StartupVector;\r | |
513 | MP_ASSEMBLY_ADDRESS_MAP AddressMap;\r | |
514 | \r | |
515 | //\r | |
516 | // Get the address map of startup code for AP,\r | |
517 | // including code size, and offset of long jump instructions to redirect.\r | |
518 | //\r | |
519 | ZeroMem (&AddressMap, sizeof (AddressMap));\r | |
520 | AsmGetAddressMap (&AddressMap);\r | |
521 | \r | |
522 | StartupVector = WorkingBuffer;\r | |
523 | \r | |
524 | //\r | |
525 | // Copy AP startup code to startup vector, and then redirect the long jump\r | |
526 | // instructions for mode switching.\r | |
527 | //\r | |
528 | CopyMem ((VOID *) (UINTN) StartupVector, AddressMap.RendezvousFunnelAddress, AddressMap.Size);\r | |
529 | *(UINT32 *) (UINTN) (StartupVector + AddressMap.FlatJumpOffset + 3) = (UINT32) (StartupVector + AddressMap.PModeEntryOffset);\r | |
530 | if (AddressMap.LongJumpOffset != 0) {\r | |
531 | *(UINT32 *) (UINTN) (StartupVector + AddressMap.LongJumpOffset + 2) = (UINT32) (StartupVector + AddressMap.LModeEntryOffset);\r | |
532 | }\r | |
533 | \r | |
534 | //\r | |
535 | // Get the start address of exchange data between BSP and AP.\r | |
536 | //\r | |
537 | mExchangeInfo = (MP_CPU_EXCHANGE_INFO *) (UINTN) (StartupVector + AddressMap.Size);\r | |
538 | ZeroMem ((VOID *) mExchangeInfo, sizeof (MP_CPU_EXCHANGE_INFO));\r | |
539 | \r | |
540 | CopyMem ((VOID *) (UINTN) &mExchangeInfo->GdtrProfile, (VOID *) (UINTN) mAcpiCpuData.GdtrProfile, sizeof (IA32_DESCRIPTOR));\r | |
541 | CopyMem ((VOID *) (UINTN) &mExchangeInfo->IdtrProfile, (VOID *) (UINTN) mAcpiCpuData.IdtrProfile, sizeof (IA32_DESCRIPTOR));\r | |
542 | \r | |
529a5a86 MK |
543 | mExchangeInfo->StackStart = (VOID *) (UINTN) mAcpiCpuData.StackAddress;\r |
544 | mExchangeInfo->StackSize = mAcpiCpuData.StackSize;\r | |
545 | mExchangeInfo->BufferStart = (UINT32) StartupVector;\r | |
546 | mExchangeInfo->Cr3 = (UINT32) (AsmReadCr3 ());\r | |
e21e355e | 547 | mExchangeInfo->InitializeFloatingPointUnitsAddress = (UINTN)InitializeFloatingPointUnits;\r |
529a5a86 MK |
548 | }\r |
549 | \r | |
550 | /**\r | |
551 | The function is invoked before SMBASE relocation in S3 path to restores CPU status.\r | |
552 | \r | |
553 | The function is invoked before SMBASE relocation in S3 path. It does first time microcode load\r | |
554 | and restores MTRRs for both BSP and APs.\r | |
555 | \r | |
556 | **/\r | |
557 | VOID\r | |
94744aa2 | 558 | InitializeCpuBeforeRebase (\r |
529a5a86 MK |
559 | VOID\r |
560 | )\r | |
561 | {\r | |
529a5a86 MK |
562 | LoadMtrrData (mAcpiCpuData.MtrrTable);\r |
563 | \r | |
93324390 | 564 | SetRegister (TRUE);\r |
529a5a86 MK |
565 | \r |
566 | ProgramVirtualWireMode ();\r | |
567 | \r | |
568 | PrepareApStartupVector (mAcpiCpuData.StartupVector);\r | |
569 | \r | |
570 | mNumberToFinish = mAcpiCpuData.NumberOfCpus - 1;\r | |
94744aa2 | 571 | mExchangeInfo->ApFunction = (VOID *) (UINTN) InitializeAp;\r |
7677b4db ED |
572 | \r |
573 | //\r | |
574 | // Execute code for before SmmBaseReloc. Note: This flag is maintained across S3 boots.\r | |
575 | //\r | |
576 | mInitApsAfterSmmBaseReloc = FALSE;\r | |
529a5a86 MK |
577 | \r |
578 | //\r | |
579 | // Send INIT IPI - SIPI to all APs\r | |
580 | //\r | |
581 | SendInitSipiSipiAllExcludingSelf ((UINT32)mAcpiCpuData.StartupVector);\r | |
582 | \r | |
583 | while (mNumberToFinish > 0) {\r | |
584 | CpuPause ();\r | |
585 | }\r | |
586 | }\r | |
587 | \r | |
588 | /**\r | |
589 | The function is invoked after SMBASE relocation in S3 path to restores CPU status.\r | |
590 | \r | |
591 | The function is invoked after SMBASE relocation in S3 path. It restores configuration according to\r | |
592 | data saved by normal boot path for both BSP and APs.\r | |
593 | \r | |
594 | **/\r | |
595 | VOID\r | |
94744aa2 | 596 | InitializeCpuAfterRebase (\r |
529a5a86 MK |
597 | VOID\r |
598 | )\r | |
599 | {\r | |
529a5a86 | 600 | mNumberToFinish = mAcpiCpuData.NumberOfCpus - 1;\r |
529a5a86 MK |
601 | \r |
602 | //\r | |
93324390 | 603 | // Signal that SMM base relocation is complete and to continue initialization for all APs.\r |
529a5a86 | 604 | //\r |
7677b4db | 605 | mInitApsAfterSmmBaseReloc = TRUE;\r |
529a5a86 | 606 | \r |
93324390 ED |
607 | //\r |
608 | // Must begin set register after all APs have continue their initialization.\r | |
609 | // This is a requirement to support semaphore mechanism in register table.\r | |
610 | // Because if semaphore's dependence type is package type, semaphore will wait\r | |
611 | // for all Aps in one package finishing their tasks before set next register\r | |
612 | // for all APs. If the Aps not begin its task during BSP doing its task, the\r | |
613 | // BSP thread will hang because it is waiting for other Aps in the same\r | |
614 | // package finishing their task.\r | |
615 | //\r | |
616 | SetRegister (FALSE);\r | |
617 | \r | |
529a5a86 MK |
618 | while (mNumberToFinish > 0) {\r |
619 | CpuPause ();\r | |
620 | }\r | |
621 | }\r | |
0bdc9e75 SZ |
622 | \r |
623 | /**\r | |
624 | Restore SMM Configuration in S3 boot path.\r | |
625 | \r | |
626 | **/\r | |
627 | VOID\r | |
628 | RestoreSmmConfigurationInS3 (\r | |
629 | VOID\r | |
630 | )\r | |
631 | {\r | |
b10d5ddc SZ |
632 | if (!mAcpiS3Enable) {\r |
633 | return;\r | |
634 | }\r | |
635 | \r | |
0bdc9e75 SZ |
636 | //\r |
637 | // Restore SMM Configuration in S3 boot path.\r | |
638 | //\r | |
639 | if (mRestoreSmmConfigurationInS3) {\r | |
640 | //\r | |
641 | // Need make sure gSmst is correct because below function may use them.\r | |
642 | //\r | |
643 | gSmst->SmmStartupThisAp = gSmmCpuPrivate->SmmCoreEntryContext.SmmStartupThisAp;\r | |
644 | gSmst->CurrentlyExecutingCpu = gSmmCpuPrivate->SmmCoreEntryContext.CurrentlyExecutingCpu;\r | |
645 | gSmst->NumberOfCpus = gSmmCpuPrivate->SmmCoreEntryContext.NumberOfCpus;\r | |
646 | gSmst->CpuSaveStateSize = gSmmCpuPrivate->SmmCoreEntryContext.CpuSaveStateSize;\r | |
647 | gSmst->CpuSaveState = gSmmCpuPrivate->SmmCoreEntryContext.CpuSaveState;\r | |
648 | \r | |
649 | //\r | |
650 | // Configure SMM Code Access Check feature if available.\r | |
651 | //\r | |
652 | ConfigSmmCodeAccessCheck ();\r | |
653 | \r | |
654 | SmmCpuFeaturesCompleteSmmReadyToLock ();\r | |
655 | \r | |
656 | mRestoreSmmConfigurationInS3 = FALSE;\r | |
657 | }\r | |
658 | }\r | |
659 | \r | |
660 | /**\r | |
661 | Perform SMM initialization for all processors in the S3 boot path.\r | |
662 | \r | |
663 | For a native platform, MP initialization in the S3 boot path is also performed in this function.\r | |
664 | **/\r | |
665 | VOID\r | |
666 | EFIAPI\r | |
667 | SmmRestoreCpu (\r | |
668 | VOID\r | |
669 | )\r | |
670 | {\r | |
671 | SMM_S3_RESUME_STATE *SmmS3ResumeState;\r | |
672 | IA32_DESCRIPTOR Ia32Idtr;\r | |
673 | IA32_DESCRIPTOR X64Idtr;\r | |
674 | IA32_IDT_GATE_DESCRIPTOR IdtEntryTable[EXCEPTION_VECTOR_NUMBER];\r | |
675 | EFI_STATUS Status;\r | |
676 | \r | |
677 | DEBUG ((EFI_D_INFO, "SmmRestoreCpu()\n"));\r | |
678 | \r | |
679 | mSmmS3Flag = TRUE;\r | |
680 | \r | |
0bdc9e75 SZ |
681 | //\r |
682 | // See if there is enough context to resume PEI Phase\r | |
683 | //\r | |
684 | if (mSmmS3ResumeState == NULL) {\r | |
685 | DEBUG ((EFI_D_ERROR, "No context to return to PEI Phase\n"));\r | |
686 | CpuDeadLoop ();\r | |
687 | }\r | |
688 | \r | |
689 | SmmS3ResumeState = mSmmS3ResumeState;\r | |
690 | ASSERT (SmmS3ResumeState != NULL);\r | |
691 | \r | |
692 | if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_64) {\r | |
693 | //\r | |
694 | // Save the IA32 IDT Descriptor\r | |
695 | //\r | |
696 | AsmReadIdtr ((IA32_DESCRIPTOR *) &Ia32Idtr);\r | |
697 | \r | |
698 | //\r | |
699 | // Setup X64 IDT table\r | |
700 | //\r | |
701 | ZeroMem (IdtEntryTable, sizeof (IA32_IDT_GATE_DESCRIPTOR) * 32);\r | |
702 | X64Idtr.Base = (UINTN) IdtEntryTable;\r | |
703 | X64Idtr.Limit = (UINT16) (sizeof (IA32_IDT_GATE_DESCRIPTOR) * 32 - 1);\r | |
704 | AsmWriteIdtr ((IA32_DESCRIPTOR *) &X64Idtr);\r | |
705 | \r | |
706 | //\r | |
707 | // Setup the default exception handler\r | |
708 | //\r | |
709 | Status = InitializeCpuExceptionHandlers (NULL);\r | |
710 | ASSERT_EFI_ERROR (Status);\r | |
711 | \r | |
712 | //\r | |
713 | // Initialize Debug Agent to support source level debug\r | |
714 | //\r | |
715 | InitializeDebugAgent (DEBUG_AGENT_INIT_THUNK_PEI_IA32TOX64, (VOID *)&Ia32Idtr, NULL);\r | |
716 | }\r | |
717 | \r | |
718 | //\r | |
719 | // Skip initialization if mAcpiCpuData is not valid\r | |
720 | //\r | |
721 | if (mAcpiCpuData.NumberOfCpus > 0) {\r | |
722 | //\r | |
723 | // First time microcode load and restore MTRRs\r | |
724 | //\r | |
94744aa2 | 725 | InitializeCpuBeforeRebase ();\r |
0bdc9e75 SZ |
726 | }\r |
727 | \r | |
728 | //\r | |
729 | // Restore SMBASE for BSP and all APs\r | |
730 | //\r | |
731 | SmmRelocateBases ();\r | |
732 | \r | |
733 | //\r | |
734 | // Skip initialization if mAcpiCpuData is not valid\r | |
735 | //\r | |
736 | if (mAcpiCpuData.NumberOfCpus > 0) {\r | |
737 | //\r | |
738 | // Restore MSRs for BSP and all APs\r | |
739 | //\r | |
94744aa2 | 740 | InitializeCpuAfterRebase ();\r |
0bdc9e75 SZ |
741 | }\r |
742 | \r | |
743 | //\r | |
744 | // Set a flag to restore SMM configuration in S3 path.\r | |
745 | //\r | |
746 | mRestoreSmmConfigurationInS3 = TRUE;\r | |
747 | \r | |
748 | DEBUG (( EFI_D_INFO, "SMM S3 Return CS = %x\n", SmmS3ResumeState->ReturnCs));\r | |
749 | DEBUG (( EFI_D_INFO, "SMM S3 Return Entry Point = %x\n", SmmS3ResumeState->ReturnEntryPoint));\r | |
750 | DEBUG (( EFI_D_INFO, "SMM S3 Return Context1 = %x\n", SmmS3ResumeState->ReturnContext1));\r | |
751 | DEBUG (( EFI_D_INFO, "SMM S3 Return Context2 = %x\n", SmmS3ResumeState->ReturnContext2));\r | |
752 | DEBUG (( EFI_D_INFO, "SMM S3 Return Stack Pointer = %x\n", SmmS3ResumeState->ReturnStackPointer));\r | |
753 | \r | |
754 | //\r | |
755 | // If SMM is in 32-bit mode, then use SwitchStack() to resume PEI Phase\r | |
756 | //\r | |
757 | if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_32) {\r | |
758 | DEBUG ((EFI_D_INFO, "Call SwitchStack() to return to S3 Resume in PEI Phase\n"));\r | |
759 | \r | |
760 | SwitchStack (\r | |
761 | (SWITCH_STACK_ENTRY_POINT)(UINTN)SmmS3ResumeState->ReturnEntryPoint,\r | |
762 | (VOID *)(UINTN)SmmS3ResumeState->ReturnContext1,\r | |
763 | (VOID *)(UINTN)SmmS3ResumeState->ReturnContext2,\r | |
764 | (VOID *)(UINTN)SmmS3ResumeState->ReturnStackPointer\r | |
765 | );\r | |
766 | }\r | |
767 | \r | |
768 | //\r | |
769 | // If SMM is in 64-bit mode, then use AsmDisablePaging64() to resume PEI Phase\r | |
770 | //\r | |
771 | if (SmmS3ResumeState->Signature == SMM_S3_RESUME_SMM_64) {\r | |
772 | DEBUG ((EFI_D_INFO, "Call AsmDisablePaging64() to return to S3 Resume in PEI Phase\n"));\r | |
773 | //\r | |
774 | // Disable interrupt of Debug timer, since new IDT table is for IA32 and will not work in long mode.\r | |
775 | //\r | |
776 | SaveAndSetDebugTimerInterrupt (FALSE);\r | |
777 | //\r | |
778 | // Restore IA32 IDT table\r | |
779 | //\r | |
780 | AsmWriteIdtr ((IA32_DESCRIPTOR *) &Ia32Idtr);\r | |
781 | AsmDisablePaging64 (\r | |
782 | SmmS3ResumeState->ReturnCs,\r | |
783 | (UINT32)SmmS3ResumeState->ReturnEntryPoint,\r | |
784 | (UINT32)SmmS3ResumeState->ReturnContext1,\r | |
785 | (UINT32)SmmS3ResumeState->ReturnContext2,\r | |
786 | (UINT32)SmmS3ResumeState->ReturnStackPointer\r | |
787 | );\r | |
788 | }\r | |
789 | \r | |
790 | //\r | |
791 | // Can not resume PEI Phase\r | |
792 | //\r | |
793 | DEBUG ((EFI_D_ERROR, "No context to return to PEI Phase\n"));\r | |
794 | CpuDeadLoop ();\r | |
795 | }\r | |
796 | \r | |
797 | /**\r | |
798 | Initialize SMM S3 resume state structure used during S3 Resume.\r | |
799 | \r | |
800 | @param[in] Cr3 The base address of the page tables to use in SMM.\r | |
801 | \r | |
802 | **/\r | |
803 | VOID\r | |
804 | InitSmmS3ResumeState (\r | |
805 | IN UINT32 Cr3\r | |
806 | )\r | |
807 | {\r | |
808 | VOID *GuidHob;\r | |
809 | EFI_SMRAM_DESCRIPTOR *SmramDescriptor;\r | |
810 | SMM_S3_RESUME_STATE *SmmS3ResumeState;\r | |
4a0f88dd JF |
811 | EFI_PHYSICAL_ADDRESS Address;\r |
812 | EFI_STATUS Status;\r | |
0bdc9e75 | 813 | \r |
b10d5ddc SZ |
814 | if (!mAcpiS3Enable) {\r |
815 | return;\r | |
816 | }\r | |
817 | \r | |
0bdc9e75 | 818 | GuidHob = GetFirstGuidHob (&gEfiAcpiVariableGuid);\r |
a95c9cfd JW |
819 | if (GuidHob == NULL) {\r |
820 | DEBUG ((\r | |
821 | DEBUG_ERROR,\r | |
822 | "ERROR:%a(): HOB(gEfiAcpiVariableGuid=%g) needed by S3 resume doesn't exist!\n",\r | |
823 | __FUNCTION__,\r | |
824 | &gEfiAcpiVariableGuid\r | |
825 | ));\r | |
826 | CpuDeadLoop ();\r | |
827 | } else {\r | |
0bdc9e75 SZ |
828 | SmramDescriptor = (EFI_SMRAM_DESCRIPTOR *) GET_GUID_HOB_DATA (GuidHob);\r |
829 | \r | |
830 | DEBUG ((EFI_D_INFO, "SMM S3 SMRAM Structure = %x\n", SmramDescriptor));\r | |
831 | DEBUG ((EFI_D_INFO, "SMM S3 Structure = %x\n", SmramDescriptor->CpuStart));\r | |
832 | \r | |
833 | SmmS3ResumeState = (SMM_S3_RESUME_STATE *)(UINTN)SmramDescriptor->CpuStart;\r | |
834 | ZeroMem (SmmS3ResumeState, sizeof (SMM_S3_RESUME_STATE));\r | |
835 | \r | |
836 | mSmmS3ResumeState = SmmS3ResumeState;\r | |
837 | SmmS3ResumeState->Smst = (EFI_PHYSICAL_ADDRESS)(UINTN)gSmst;\r | |
838 | \r | |
839 | SmmS3ResumeState->SmmS3ResumeEntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)SmmRestoreCpu;\r | |
840 | \r | |
841 | SmmS3ResumeState->SmmS3StackSize = SIZE_32KB;\r | |
842 | SmmS3ResumeState->SmmS3StackBase = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES ((UINTN)SmmS3ResumeState->SmmS3StackSize));\r | |
843 | if (SmmS3ResumeState->SmmS3StackBase == 0) {\r | |
844 | SmmS3ResumeState->SmmS3StackSize = 0;\r | |
845 | }\r | |
846 | \r | |
f0053e83 | 847 | SmmS3ResumeState->SmmS3Cr0 = mSmmCr0;\r |
0bdc9e75 | 848 | SmmS3ResumeState->SmmS3Cr3 = Cr3;\r |
351b49c1 | 849 | SmmS3ResumeState->SmmS3Cr4 = mSmmCr4;\r |
0bdc9e75 SZ |
850 | \r |
851 | if (sizeof (UINTN) == sizeof (UINT64)) {\r | |
852 | SmmS3ResumeState->Signature = SMM_S3_RESUME_SMM_64;\r | |
853 | }\r | |
854 | if (sizeof (UINTN) == sizeof (UINT32)) {\r | |
855 | SmmS3ResumeState->Signature = SMM_S3_RESUME_SMM_32;\r | |
856 | }\r | |
0bdc9e75 | 857 | \r |
16d84657 JW |
858 | //\r |
859 | // Patch SmmS3ResumeState->SmmS3Cr3\r | |
860 | //\r | |
861 | InitSmmS3Cr3 ();\r | |
862 | }\r | |
4a0f88dd JF |
863 | \r |
864 | //\r | |
865 | // Allocate safe memory in ACPI NVS for AP to execute hlt loop in\r | |
866 | // protected mode on S3 path\r | |
867 | //\r | |
868 | Address = BASE_4GB - 1;\r | |
869 | Status = gBS->AllocatePages (\r | |
870 | AllocateMaxAddress,\r | |
871 | EfiACPIMemoryNVS,\r | |
872 | EFI_SIZE_TO_PAGES (sizeof (mApHltLoopCodeTemplate)),\r | |
873 | &Address\r | |
874 | );\r | |
875 | ASSERT_EFI_ERROR (Status);\r | |
876 | mApHltLoopCode = (UINT8 *) (UINTN) Address;\r | |
0bdc9e75 SZ |
877 | }\r |
878 | \r | |
879 | /**\r | |
880 | Copy register table from ACPI NVS memory into SMRAM.\r | |
881 | \r | |
882 | @param[in] DestinationRegisterTableList Points to destination register table.\r | |
883 | @param[in] SourceRegisterTableList Points to source register table.\r | |
884 | @param[in] NumberOfCpus Number of CPUs.\r | |
885 | \r | |
886 | **/\r | |
887 | VOID\r | |
888 | CopyRegisterTable (\r | |
889 | IN CPU_REGISTER_TABLE *DestinationRegisterTableList,\r | |
890 | IN CPU_REGISTER_TABLE *SourceRegisterTableList,\r | |
891 | IN UINT32 NumberOfCpus\r | |
892 | )\r | |
893 | {\r | |
894 | UINTN Index;\r | |
0bdc9e75 SZ |
895 | CPU_REGISTER_TABLE_ENTRY *RegisterTableEntry;\r |
896 | \r | |
897 | CopyMem (DestinationRegisterTableList, SourceRegisterTableList, NumberOfCpus * sizeof (CPU_REGISTER_TABLE));\r | |
898 | for (Index = 0; Index < NumberOfCpus; Index++) {\r | |
30d995ee JF |
899 | if (DestinationRegisterTableList[Index].AllocatedSize != 0) {\r |
900 | RegisterTableEntry = AllocateCopyPool (\r | |
901 | DestinationRegisterTableList[Index].AllocatedSize,\r | |
902 | (VOID *)(UINTN)SourceRegisterTableList[Index].RegisterTableEntry\r | |
903 | );\r | |
904 | ASSERT (RegisterTableEntry != NULL);\r | |
905 | DestinationRegisterTableList[Index].RegisterTableEntry = (EFI_PHYSICAL_ADDRESS)(UINTN)RegisterTableEntry;\r | |
0bdc9e75 SZ |
906 | }\r |
907 | }\r | |
908 | }\r | |
909 | \r | |
910 | /**\r | |
911 | Get ACPI CPU data.\r | |
912 | \r | |
913 | **/\r | |
914 | VOID\r | |
915 | GetAcpiCpuData (\r | |
916 | VOID\r | |
917 | )\r | |
918 | {\r | |
919 | ACPI_CPU_DATA *AcpiCpuData;\r | |
920 | IA32_DESCRIPTOR *Gdtr;\r | |
921 | IA32_DESCRIPTOR *Idtr;\r | |
293f8766 ED |
922 | VOID *GdtForAp;\r |
923 | VOID *IdtForAp;\r | |
924 | VOID *MachineCheckHandlerForAp;\r | |
93324390 | 925 | CPU_STATUS_INFORMATION *CpuStatus;\r |
0bdc9e75 | 926 | \r |
b10d5ddc SZ |
927 | if (!mAcpiS3Enable) {\r |
928 | return;\r | |
929 | }\r | |
930 | \r | |
0bdc9e75 SZ |
931 | //\r |
932 | // Prevent use of mAcpiCpuData by initialize NumberOfCpus to 0\r | |
933 | //\r | |
934 | mAcpiCpuData.NumberOfCpus = 0;\r | |
935 | \r | |
936 | //\r | |
937 | // If PcdCpuS3DataAddress was never set, then do not copy CPU S3 Data into SMRAM\r | |
938 | //\r | |
939 | AcpiCpuData = (ACPI_CPU_DATA *)(UINTN)PcdGet64 (PcdCpuS3DataAddress);\r | |
940 | if (AcpiCpuData == 0) {\r | |
941 | return;\r | |
942 | }\r | |
943 | \r | |
944 | //\r | |
945 | // For a native platform, copy the CPU S3 data into SMRAM for use on CPU S3 Resume.\r | |
946 | //\r | |
947 | CopyMem (&mAcpiCpuData, AcpiCpuData, sizeof (mAcpiCpuData));\r | |
948 | \r | |
949 | mAcpiCpuData.MtrrTable = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePool (sizeof (MTRR_SETTINGS));\r | |
950 | ASSERT (mAcpiCpuData.MtrrTable != 0);\r | |
951 | \r | |
952 | CopyMem ((VOID *)(UINTN)mAcpiCpuData.MtrrTable, (VOID *)(UINTN)AcpiCpuData->MtrrTable, sizeof (MTRR_SETTINGS));\r | |
953 | \r | |
954 | mAcpiCpuData.GdtrProfile = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePool (sizeof (IA32_DESCRIPTOR));\r | |
955 | ASSERT (mAcpiCpuData.GdtrProfile != 0);\r | |
956 | \r | |
957 | CopyMem ((VOID *)(UINTN)mAcpiCpuData.GdtrProfile, (VOID *)(UINTN)AcpiCpuData->GdtrProfile, sizeof (IA32_DESCRIPTOR));\r | |
958 | \r | |
959 | mAcpiCpuData.IdtrProfile = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePool (sizeof (IA32_DESCRIPTOR));\r | |
960 | ASSERT (mAcpiCpuData.IdtrProfile != 0);\r | |
961 | \r | |
962 | CopyMem ((VOID *)(UINTN)mAcpiCpuData.IdtrProfile, (VOID *)(UINTN)AcpiCpuData->IdtrProfile, sizeof (IA32_DESCRIPTOR));\r | |
963 | \r | |
964 | mAcpiCpuData.PreSmmInitRegisterTable = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePool (mAcpiCpuData.NumberOfCpus * sizeof (CPU_REGISTER_TABLE));\r | |
965 | ASSERT (mAcpiCpuData.PreSmmInitRegisterTable != 0);\r | |
966 | \r | |
967 | CopyRegisterTable (\r | |
968 | (CPU_REGISTER_TABLE *)(UINTN)mAcpiCpuData.PreSmmInitRegisterTable,\r | |
969 | (CPU_REGISTER_TABLE *)(UINTN)AcpiCpuData->PreSmmInitRegisterTable,\r | |
970 | mAcpiCpuData.NumberOfCpus\r | |
971 | );\r | |
972 | \r | |
973 | mAcpiCpuData.RegisterTable = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocatePool (mAcpiCpuData.NumberOfCpus * sizeof (CPU_REGISTER_TABLE));\r | |
974 | ASSERT (mAcpiCpuData.RegisterTable != 0);\r | |
975 | \r | |
976 | CopyRegisterTable (\r | |
977 | (CPU_REGISTER_TABLE *)(UINTN)mAcpiCpuData.RegisterTable,\r | |
978 | (CPU_REGISTER_TABLE *)(UINTN)AcpiCpuData->RegisterTable,\r | |
979 | mAcpiCpuData.NumberOfCpus\r | |
980 | );\r | |
981 | \r | |
982 | //\r | |
983 | // Copy AP's GDT, IDT and Machine Check handler into SMRAM.\r | |
984 | //\r | |
985 | Gdtr = (IA32_DESCRIPTOR *)(UINTN)mAcpiCpuData.GdtrProfile;\r | |
986 | Idtr = (IA32_DESCRIPTOR *)(UINTN)mAcpiCpuData.IdtrProfile;\r | |
987 | \r | |
293f8766 ED |
988 | GdtForAp = AllocatePool ((Gdtr->Limit + 1) + (Idtr->Limit + 1) + mAcpiCpuData.ApMachineCheckHandlerSize);\r |
989 | ASSERT (GdtForAp != NULL);\r | |
990 | IdtForAp = (VOID *) ((UINTN)GdtForAp + (Gdtr->Limit + 1));\r | |
991 | MachineCheckHandlerForAp = (VOID *) ((UINTN)IdtForAp + (Idtr->Limit + 1));\r | |
992 | \r | |
993 | CopyMem (GdtForAp, (VOID *)Gdtr->Base, Gdtr->Limit + 1);\r | |
994 | CopyMem (IdtForAp, (VOID *)Idtr->Base, Idtr->Limit + 1);\r | |
995 | CopyMem (MachineCheckHandlerForAp, (VOID *)(UINTN)mAcpiCpuData.ApMachineCheckHandlerBase, mAcpiCpuData.ApMachineCheckHandlerSize);\r | |
0bdc9e75 | 996 | \r |
293f8766 ED |
997 | Gdtr->Base = (UINTN)GdtForAp;\r |
998 | Idtr->Base = (UINTN)IdtForAp;\r | |
999 | mAcpiCpuData.ApMachineCheckHandlerBase = (EFI_PHYSICAL_ADDRESS)(UINTN)MachineCheckHandlerForAp;\r | |
93324390 ED |
1000 | \r |
1001 | CpuStatus = &mAcpiCpuData.CpuStatus;\r | |
1002 | CopyMem (CpuStatus, &AcpiCpuData->CpuStatus, sizeof (CPU_STATUS_INFORMATION));\r | |
1003 | if (AcpiCpuData->CpuStatus.ValidCoreCountPerPackage != 0) {\r | |
1004 | CpuStatus->ValidCoreCountPerPackage = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocateCopyPool (\r | |
1005 | sizeof (UINT32) * CpuStatus->PackageCount,\r | |
1006 | (UINT32 *)(UINTN)AcpiCpuData->CpuStatus.ValidCoreCountPerPackage\r | |
1007 | );\r | |
1008 | ASSERT (CpuStatus->ValidCoreCountPerPackage != 0);\r | |
1009 | }\r | |
1010 | if (AcpiCpuData->ApLocation != 0) {\r | |
1011 | mAcpiCpuData.ApLocation = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocateCopyPool (\r | |
1012 | mAcpiCpuData.NumberOfCpus * sizeof (EFI_CPU_PHYSICAL_LOCATION),\r | |
1013 | (EFI_CPU_PHYSICAL_LOCATION *)(UINTN)AcpiCpuData->ApLocation\r | |
1014 | );\r | |
1015 | ASSERT (mAcpiCpuData.ApLocation != 0);\r | |
1016 | }\r | |
1017 | if (CpuStatus->PackageCount != 0) {\r | |
9bae7811 ED |
1018 | mCpuFlags.CoreSemaphoreCount = AllocateZeroPool (\r |
1019 | sizeof (UINT32) * CpuStatus->PackageCount *\r | |
1020 | CpuStatus->MaxCoreCount * CpuStatus->MaxThreadCount\r | |
1021 | );\r | |
1022 | ASSERT (mCpuFlags.CoreSemaphoreCount != NULL);\r | |
1023 | mCpuFlags.PackageSemaphoreCount = AllocateZeroPool (\r | |
1024 | sizeof (UINT32) * CpuStatus->PackageCount *\r | |
1025 | CpuStatus->MaxCoreCount * CpuStatus->MaxThreadCount\r | |
1026 | );\r | |
1027 | ASSERT (mCpuFlags.PackageSemaphoreCount != NULL);\r | |
93324390 ED |
1028 | }\r |
1029 | InitializeSpinLock((SPIN_LOCK*) &mCpuFlags.MemoryMappedLock);\r | |
0bdc9e75 | 1030 | }\r |
b10d5ddc SZ |
1031 | \r |
1032 | /**\r | |
1033 | Get ACPI S3 enable flag.\r | |
1034 | \r | |
1035 | **/\r | |
1036 | VOID\r | |
1037 | GetAcpiS3EnableFlag (\r | |
1038 | VOID\r | |
1039 | )\r | |
1040 | {\r | |
1041 | mAcpiS3Enable = PcdGetBool (PcdAcpiS3Enable);\r | |
1042 | }\r |