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1 | /** @file\r | |
2 | Common header file for MP Initialize Library.\r | |
3 | \r | |
4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #ifndef _MP_LIB_H_\r | |
16 | #define _MP_LIB_H_\r | |
17 | \r | |
18 | #include <PiPei.h>\r | |
19 | \r | |
20 | #include <Register/Cpuid.h>\r | |
21 | #include <Register/Msr.h>\r | |
22 | #include <Register/LocalApic.h>\r | |
23 | #include <Register/Microcode.h>\r | |
24 | \r | |
25 | #include <Library/MpInitLib.h>\r | |
26 | #include <Library/BaseLib.h>\r | |
27 | #include <Library/BaseMemoryLib.h>\r | |
28 | #include <Library/MemoryAllocationLib.h>\r | |
29 | #include <Library/DebugLib.h>\r | |
30 | #include <Library/LocalApicLib.h>\r | |
31 | #include <Library/CpuLib.h>\r | |
32 | #include <Library/UefiCpuLib.h>\r | |
33 | #include <Library/TimerLib.h>\r | |
34 | #include <Library/SynchronizationLib.h>\r | |
35 | #include <Library/MtrrLib.h>\r | |
36 | #include <Library/HobLib.h>\r | |
37 | \r | |
38 | #define WAKEUP_AP_SIGNAL SIGNATURE_32 ('S', 'T', 'A', 'P')\r | |
39 | \r | |
40 | #define CPU_INIT_MP_LIB_HOB_GUID \\r | |
41 | { \\r | |
42 | 0x58eb6a19, 0x3699, 0x4c68, { 0xa8, 0x36, 0xda, 0xcd, 0x8e, 0xdc, 0xad, 0x4a } \\r | |
43 | }\r | |
44 | \r | |
45 | //\r | |
46 | // The MP data for switch BSP\r | |
47 | //\r | |
48 | #define CPU_SWITCH_STATE_IDLE 0\r | |
49 | #define CPU_SWITCH_STATE_STORED 1\r | |
50 | #define CPU_SWITCH_STATE_LOADED 2\r | |
51 | \r | |
52 | //\r | |
53 | // CPU exchange information for switch BSP\r | |
54 | //\r | |
55 | typedef struct {\r | |
56 | UINT8 State; // offset 0\r | |
57 | UINTN StackPointer; // offset 4 / 8\r | |
58 | IA32_DESCRIPTOR Gdtr; // offset 8 / 16\r | |
59 | IA32_DESCRIPTOR Idtr; // offset 14 / 26\r | |
60 | } CPU_EXCHANGE_ROLE_INFO;\r | |
61 | \r | |
62 | //\r | |
63 | // AP loop state when APs are in idle state\r | |
64 | // It's value is the same with PcdCpuApLoopMode\r | |
65 | //\r | |
66 | typedef enum {\r | |
67 | ApInHltLoop = 1,\r | |
68 | ApInMwaitLoop = 2,\r | |
69 | ApInRunLoop = 3\r | |
70 | } AP_LOOP_MODE;\r | |
71 | \r | |
72 | //\r | |
73 | // AP initialization state during APs wakeup\r | |
74 | //\r | |
75 | typedef enum {\r | |
76 | ApInitConfig = 1,\r | |
77 | ApInitReconfig = 2,\r | |
78 | ApInitDone = 3\r | |
79 | } AP_INIT_STATE;\r | |
80 | \r | |
81 | //\r | |
82 | // AP state\r | |
83 | //\r | |
84 | typedef enum {\r | |
85 | CpuStateIdle,\r | |
86 | CpuStateReady,\r | |
87 | CpuStateBusy,\r | |
88 | CpuStateFinished,\r | |
89 | CpuStateDisabled\r | |
90 | } CPU_STATE;\r | |
91 | \r | |
92 | //\r | |
93 | // CPU volatile registers around INIT-SIPI-SIPI\r | |
94 | //\r | |
95 | typedef struct {\r | |
96 | UINTN Cr0;\r | |
97 | UINTN Cr3;\r | |
98 | UINTN Cr4;\r | |
99 | UINTN Dr0;\r | |
100 | UINTN Dr1;\r | |
101 | UINTN Dr2;\r | |
102 | UINTN Dr3;\r | |
103 | UINTN Dr6;\r | |
104 | UINTN Dr7;\r | |
105 | } CPU_VOLATILE_REGISTERS;\r | |
106 | \r | |
107 | //\r | |
108 | // AP related data\r | |
109 | //\r | |
110 | typedef struct {\r | |
111 | SPIN_LOCK ApLock;\r | |
112 | volatile UINT32 *StartupApSignal;\r | |
113 | volatile UINTN ApFunction;\r | |
114 | volatile UINTN ApFunctionArgument;\r | |
115 | BOOLEAN CpuHealthy;\r | |
116 | volatile CPU_STATE State;\r | |
117 | CPU_VOLATILE_REGISTERS VolatileRegisters;\r | |
118 | BOOLEAN Waiting;\r | |
119 | BOOLEAN *Finished;\r | |
120 | UINT64 ExpectedTime;\r | |
121 | UINT64 CurrentTime;\r | |
122 | UINT64 TotalTime;\r | |
123 | EFI_EVENT WaitEvent;\r | |
124 | } CPU_AP_DATA;\r | |
125 | \r | |
126 | //\r | |
127 | // Basic CPU information saved in Guided HOB.\r | |
128 | // Because the contents will be shard between PEI and DXE,\r | |
129 | // we need to make sure the each fields offset same in different\r | |
130 | // architecture.\r | |
131 | //\r | |
132 | typedef struct {\r | |
133 | UINT32 InitialApicId;\r | |
134 | UINT32 ApicId;\r | |
135 | UINT32 Health;\r | |
136 | UINT32 ApTopOfStack;\r | |
137 | } CPU_INFO_IN_HOB;\r | |
138 | \r | |
139 | //\r | |
140 | // AP reset code information including code address and size,\r | |
141 | // this structure will be shared be C code and assembly code.\r | |
142 | // It is natural aligned by design.\r | |
143 | //\r | |
144 | typedef struct {\r | |
145 | UINT8 *RendezvousFunnelAddress;\r | |
146 | UINTN ModeEntryOffset;\r | |
147 | UINTN RendezvousFunnelSize;\r | |
148 | UINT8 *RelocateApLoopFuncAddress;\r | |
149 | UINTN RelocateApLoopFuncSize;\r | |
150 | } MP_ASSEMBLY_ADDRESS_MAP;\r | |
151 | \r | |
152 | typedef struct _CPU_MP_DATA CPU_MP_DATA;\r | |
153 | \r | |
154 | #pragma pack(1)\r | |
155 | \r | |
156 | //\r | |
157 | // MP CPU exchange information for AP reset code\r | |
158 | // This structure is required to be packed because fixed field offsets\r | |
159 | // into this structure are used in assembly code in this module\r | |
160 | //\r | |
161 | typedef struct {\r | |
162 | UINTN Lock;\r | |
163 | UINTN StackStart;\r | |
164 | UINTN StackSize;\r | |
165 | UINTN CFunction;\r | |
166 | IA32_DESCRIPTOR GdtrProfile;\r | |
167 | IA32_DESCRIPTOR IdtrProfile;\r | |
168 | UINTN BufferStart;\r | |
169 | UINTN ModeOffset;\r | |
170 | UINTN NumApsExecuting;\r | |
171 | UINTN CodeSegment;\r | |
172 | UINTN DataSegment;\r | |
173 | UINTN EnableExecuteDisable;\r | |
174 | UINTN Cr3;\r | |
175 | UINTN InitFlag;\r | |
176 | CPU_INFO_IN_HOB *CpuInfo;\r | |
177 | CPU_MP_DATA *CpuMpData;\r | |
178 | } MP_CPU_EXCHANGE_INFO;\r | |
179 | \r | |
180 | #pragma pack()\r | |
181 | \r | |
182 | //\r | |
183 | // CPU MP Data save in memory\r | |
184 | //\r | |
185 | struct _CPU_MP_DATA {\r | |
186 | UINT64 CpuInfoInHob;\r | |
187 | UINT32 CpuCount;\r | |
188 | UINT32 BspNumber;\r | |
189 | //\r | |
190 | // The above fields data will be passed from PEI to DXE\r | |
191 | // Please make sure the fields offset same in the different\r | |
192 | // architecture.\r | |
193 | //\r | |
194 | SPIN_LOCK MpLock;\r | |
195 | UINTN Buffer;\r | |
196 | UINTN CpuApStackSize;\r | |
197 | MP_ASSEMBLY_ADDRESS_MAP AddressMap;\r | |
198 | UINTN WakeupBuffer;\r | |
199 | UINTN BackupBuffer;\r | |
200 | UINTN BackupBufferSize;\r | |
201 | BOOLEAN SaveRestoreFlag;\r | |
202 | \r | |
203 | volatile UINT32 StartCount;\r | |
204 | volatile UINT32 FinishedCount;\r | |
205 | volatile UINT32 RunningCount;\r | |
206 | BOOLEAN SingleThread;\r | |
207 | EFI_AP_PROCEDURE Procedure;\r | |
208 | VOID *ProcArguments;\r | |
209 | BOOLEAN *Finished;\r | |
210 | UINT64 ExpectedTime;\r | |
211 | UINT64 CurrentTime;\r | |
212 | UINT64 TotalTime;\r | |
213 | EFI_EVENT WaitEvent;\r | |
214 | UINTN **FailedCpuList;\r | |
215 | \r | |
216 | AP_INIT_STATE InitFlag;\r | |
217 | BOOLEAN X2ApicEnable;\r | |
218 | BOOLEAN SwitchBspFlag;\r | |
219 | CPU_EXCHANGE_ROLE_INFO BSPInfo;\r | |
220 | CPU_EXCHANGE_ROLE_INFO APInfo;\r | |
221 | MTRR_SETTINGS MtrrTable;\r | |
222 | UINT8 ApLoopMode;\r | |
223 | UINT8 ApTargetCState;\r | |
224 | UINT16 PmCodeSegment;\r | |
225 | CPU_AP_DATA *CpuData;\r | |
226 | volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo;\r | |
227 | };\r | |
228 | \r | |
229 | extern EFI_GUID mCpuInitMpLibHobGuid;\r | |
230 | \r | |
231 | /**\r | |
232 | Assembly code to place AP into safe loop mode.\r | |
233 | \r | |
234 | Place AP into targeted C-State if MONITOR is supported, otherwise\r | |
235 | place AP into hlt state.\r | |
236 | Place AP in protected mode if the current is long mode. Due to AP maybe\r | |
237 | wakeup by some hardware event. It could avoid accessing page table that\r | |
238 | may not available during booting to OS.\r | |
239 | \r | |
240 | @param[in] MwaitSupport TRUE indicates MONITOR is supported.\r | |
241 | FALSE indicates MONITOR is not supported.\r | |
242 | @param[in] ApTargetCState Target C-State value.\r | |
243 | @param[in] PmCodeSegment Protected mode code segment value.\r | |
244 | **/\r | |
245 | typedef\r | |
246 | VOID\r | |
247 | (EFIAPI * ASM_RELOCATE_AP_LOOP) (\r | |
248 | IN BOOLEAN MwaitSupport,\r | |
249 | IN UINTN ApTargetCState,\r | |
250 | IN UINTN PmCodeSegment\r | |
251 | );\r | |
252 | \r | |
253 | /**\r | |
254 | Assembly code to get starting address and size of the rendezvous entry for APs.\r | |
255 | Information for fixing a jump instruction in the code is also returned.\r | |
256 | \r | |
257 | @param[out] AddressMap Output buffer for address map information.\r | |
258 | **/\r | |
259 | VOID\r | |
260 | EFIAPI\r | |
261 | AsmGetAddressMap (\r | |
262 | OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap\r | |
263 | );\r | |
264 | \r | |
265 | /**\r | |
266 | This function is called by both the BSP and the AP which is to become the BSP to\r | |
267 | Exchange execution context including stack between them. After return from this\r | |
268 | function, the BSP becomes AP and the AP becomes the BSP.\r | |
269 | \r | |
270 | @param[in] MyInfo Pointer to buffer holding the exchanging information for the executing processor.\r | |
271 | @param[in] OthersInfo Pointer to buffer holding the exchanging information for the peer.\r | |
272 | \r | |
273 | **/\r | |
274 | VOID\r | |
275 | EFIAPI\r | |
276 | AsmExchangeRole (\r | |
277 | IN CPU_EXCHANGE_ROLE_INFO *MyInfo,\r | |
278 | IN CPU_EXCHANGE_ROLE_INFO *OthersInfo\r | |
279 | );\r | |
280 | \r | |
281 | /**\r | |
282 | Get the pointer to CPU MP Data structure.\r | |
283 | \r | |
284 | @return The pointer to CPU MP Data structure.\r | |
285 | **/\r | |
286 | CPU_MP_DATA *\r | |
287 | GetCpuMpData (\r | |
288 | VOID\r | |
289 | );\r | |
290 | \r | |
291 | /**\r | |
292 | Save the pointer to CPU MP Data structure.\r | |
293 | \r | |
294 | @param[in] CpuMpData The pointer to CPU MP Data structure will be saved.\r | |
295 | **/\r | |
296 | VOID\r | |
297 | SaveCpuMpData (\r | |
298 | IN CPU_MP_DATA *CpuMpData\r | |
299 | );\r | |
300 | \r | |
301 | /**\r | |
302 | Allocate reset vector buffer.\r | |
303 | \r | |
304 | @param[in, out] CpuMpData The pointer to CPU MP Data structure.\r | |
305 | **/\r | |
306 | VOID\r | |
307 | AllocateResetVector (\r | |
308 | IN OUT CPU_MP_DATA *CpuMpData\r | |
309 | );\r | |
310 | \r | |
311 | /**\r | |
312 | Free AP reset vector buffer.\r | |
313 | \r | |
314 | @param[in] CpuMpData The pointer to CPU MP Data structure.\r | |
315 | **/\r | |
316 | VOID\r | |
317 | FreeResetVector (\r | |
318 | IN CPU_MP_DATA *CpuMpData\r | |
319 | );\r | |
320 | \r | |
321 | /**\r | |
322 | This function will be called by BSP to wakeup AP.\r | |
323 | \r | |
324 | @param[in] CpuMpData Pointer to CPU MP Data\r | |
325 | @param[in] Broadcast TRUE: Send broadcast IPI to all APs\r | |
326 | FALSE: Send IPI to AP by ApicId\r | |
327 | @param[in] ProcessorNumber The handle number of specified processor\r | |
328 | @param[in] Procedure The function to be invoked by AP\r | |
329 | @param[in] ProcedureArgument The argument to be passed into AP function\r | |
330 | **/\r | |
331 | VOID\r | |
332 | WakeUpAP (\r | |
333 | IN CPU_MP_DATA *CpuMpData,\r | |
334 | IN BOOLEAN Broadcast,\r | |
335 | IN UINTN ProcessorNumber,\r | |
336 | IN EFI_AP_PROCEDURE Procedure, OPTIONAL\r | |
337 | IN VOID *ProcedureArgument OPTIONAL\r | |
338 | );\r | |
339 | \r | |
340 | /**\r | |
341 | Initialize global data for MP support.\r | |
342 | \r | |
343 | @param[in] CpuMpData The pointer to CPU MP Data structure.\r | |
344 | **/\r | |
345 | VOID\r | |
346 | InitMpGlobalData (\r | |
347 | IN CPU_MP_DATA *CpuMpData\r | |
348 | );\r | |
349 | \r | |
350 | /**\r | |
351 | Worker function to execute a caller provided function on all enabled APs.\r | |
352 | \r | |
353 | @param[in] Procedure A pointer to the function to be run on\r | |
354 | enabled APs of the system.\r | |
355 | @param[in] SingleThread If TRUE, then all the enabled APs execute\r | |
356 | the function specified by Procedure one by\r | |
357 | one, in ascending order of processor handle\r | |
358 | number. If FALSE, then all the enabled APs\r | |
359 | execute the function specified by Procedure\r | |
360 | simultaneously.\r | |
361 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
362 | service.\r | |
363 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
364 | APs to return from Procedure, either for\r | |
365 | blocking or non-blocking mode.\r | |
366 | @param[in] ProcedureArgument The parameter passed into Procedure for\r | |
367 | all APs.\r | |
368 | @param[out] FailedCpuList If all APs finish successfully, then its\r | |
369 | content is set to NULL. If not all APs\r | |
370 | finish before timeout expires, then its\r | |
371 | content is set to address of the buffer\r | |
372 | holding handle numbers of the failed APs.\r | |
373 | \r | |
374 | @retval EFI_SUCCESS In blocking mode, all APs have finished before\r | |
375 | the timeout expired.\r | |
376 | @retval EFI_SUCCESS In non-blocking mode, function has been dispatched\r | |
377 | to all enabled APs.\r | |
378 | @retval others Failed to Startup all APs.\r | |
379 | \r | |
380 | **/\r | |
381 | EFI_STATUS\r | |
382 | StartupAllAPsWorker (\r | |
383 | IN EFI_AP_PROCEDURE Procedure,\r | |
384 | IN BOOLEAN SingleThread,\r | |
385 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
386 | IN UINTN TimeoutInMicroseconds,\r | |
387 | IN VOID *ProcedureArgument OPTIONAL,\r | |
388 | OUT UINTN **FailedCpuList OPTIONAL\r | |
389 | );\r | |
390 | \r | |
391 | /**\r | |
392 | Worker function to let the caller get one enabled AP to execute a caller-provided\r | |
393 | function.\r | |
394 | \r | |
395 | @param[in] Procedure A pointer to the function to be run on\r | |
396 | enabled APs of the system.\r | |
397 | @param[in] ProcessorNumber The handle number of the AP.\r | |
398 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
399 | service.\r | |
400 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
401 | APs to return from Procedure, either for\r | |
402 | blocking or non-blocking mode.\r | |
403 | @param[in] ProcedureArgument The parameter passed into Procedure for\r | |
404 | all APs.\r | |
405 | @param[out] Finished If AP returns from Procedure before the\r | |
406 | timeout expires, its content is set to TRUE.\r | |
407 | Otherwise, the value is set to FALSE.\r | |
408 | \r | |
409 | @retval EFI_SUCCESS In blocking mode, specified AP finished before\r | |
410 | the timeout expires.\r | |
411 | @retval others Failed to Startup AP.\r | |
412 | \r | |
413 | **/\r | |
414 | EFI_STATUS\r | |
415 | StartupThisAPWorker (\r | |
416 | IN EFI_AP_PROCEDURE Procedure,\r | |
417 | IN UINTN ProcessorNumber,\r | |
418 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
419 | IN UINTN TimeoutInMicroseconds,\r | |
420 | IN VOID *ProcedureArgument OPTIONAL,\r | |
421 | OUT BOOLEAN *Finished OPTIONAL\r | |
422 | );\r | |
423 | \r | |
424 | /**\r | |
425 | Worker function to switch the requested AP to be the BSP from that point onward.\r | |
426 | \r | |
427 | @param[in] ProcessorNumber The handle number of AP that is to become the new BSP.\r | |
428 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an\r | |
429 | enabled AP. Otherwise, it will be disabled.\r | |
430 | \r | |
431 | @retval EFI_SUCCESS BSP successfully switched.\r | |
432 | @retval others Failed to switch BSP. \r | |
433 | \r | |
434 | **/\r | |
435 | EFI_STATUS\r | |
436 | SwitchBSPWorker (\r | |
437 | IN UINTN ProcessorNumber,\r | |
438 | IN BOOLEAN EnableOldBSP\r | |
439 | );\r | |
440 | \r | |
441 | /**\r | |
442 | Worker function to let the caller enable or disable an AP from this point onward.\r | |
443 | This service may only be called from the BSP.\r | |
444 | \r | |
445 | @param[in] ProcessorNumber The handle number of AP.\r | |
446 | @param[in] EnableAP Specifies the new state for the processor for\r | |
447 | enabled, FALSE for disabled.\r | |
448 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies\r | |
449 | the new health status of the AP.\r | |
450 | \r | |
451 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r | |
452 | @retval others Failed to Enable/Disable AP.\r | |
453 | \r | |
454 | **/\r | |
455 | EFI_STATUS\r | |
456 | EnableDisableApWorker (\r | |
457 | IN UINTN ProcessorNumber,\r | |
458 | IN BOOLEAN EnableAP,\r | |
459 | IN UINT32 *HealthFlag OPTIONAL\r | |
460 | );\r | |
461 | \r | |
462 | /**\r | |
463 | Get pointer to CPU MP Data structure from GUIDed HOB.\r | |
464 | \r | |
465 | @return The pointer to CPU MP Data structure.\r | |
466 | **/\r | |
467 | CPU_MP_DATA *\r | |
468 | GetCpuMpDataFromGuidedHob (\r | |
469 | VOID\r | |
470 | );\r | |
471 | \r | |
472 | /** Checks status of specified AP.\r | |
473 | \r | |
474 | This function checks whether the specified AP has finished the task assigned\r | |
475 | by StartupThisAP(), and whether timeout expires.\r | |
476 | \r | |
477 | @param[in] ProcessorNumber The handle number of processor.\r | |
478 | \r | |
479 | @retval EFI_SUCCESS Specified AP has finished task assigned by StartupThisAPs().\r | |
480 | @retval EFI_TIMEOUT The timeout expires.\r | |
481 | @retval EFI_NOT_READY Specified AP has not finished task and timeout has not expired.\r | |
482 | **/\r | |
483 | EFI_STATUS\r | |
484 | CheckThisAP (\r | |
485 | IN UINTN ProcessorNumber\r | |
486 | );\r | |
487 | \r | |
488 | /**\r | |
489 | Checks status of all APs.\r | |
490 | \r | |
491 | This function checks whether all APs have finished task assigned by StartupAllAPs(),\r | |
492 | and whether timeout expires.\r | |
493 | \r | |
494 | @retval EFI_SUCCESS All APs have finished task assigned by StartupAllAPs().\r | |
495 | @retval EFI_TIMEOUT The timeout expires.\r | |
496 | @retval EFI_NOT_READY APs have not finished task and timeout has not expired.\r | |
497 | **/\r | |
498 | EFI_STATUS\r | |
499 | CheckAllAPs (\r | |
500 | VOID\r | |
501 | );\r | |
502 | \r | |
503 | /**\r | |
504 | Checks APs status and updates APs status if needed.\r | |
505 | \r | |
506 | **/\r | |
507 | VOID\r | |
508 | CheckAndUpdateApsStatus (\r | |
509 | VOID\r | |
510 | );\r | |
511 | \r | |
512 | /**\r | |
513 | Detect whether specified processor can find matching microcode patch and load it.\r | |
514 | \r | |
515 | @param[in] CpuMpData The pointer to CPU MP Data structure.\r | |
516 | **/\r | |
517 | VOID\r | |
518 | MicrocodeDetect (\r | |
519 | IN CPU_MP_DATA *CpuMpData\r | |
520 | );\r | |
521 | \r | |
522 | /**\r | |
523 | Detect whether Mwait-monitor feature is supported.\r | |
524 | \r | |
525 | @retval TRUE Mwait-monitor feature is supported.\r | |
526 | @retval FALSE Mwait-monitor feature is not supported.\r | |
527 | **/\r | |
528 | BOOLEAN\r | |
529 | IsMwaitSupport (\r | |
530 | VOID\r | |
531 | );\r | |
532 | \r | |
533 | /**\r | |
534 | Notify function on End Of PEI PPI.\r | |
535 | \r | |
536 | On S3 boot, this function will restore wakeup buffer data.\r | |
537 | On normal boot, this function will flag wakeup buffer to be un-used type.\r | |
538 | \r | |
539 | @param[in] PeiServices The pointer to the PEI Services Table.\r | |
540 | @param[in] NotifyDescriptor Address of the notification descriptor data structure.\r | |
541 | @param[in] Ppi Address of the PPI that was installed.\r | |
542 | \r | |
543 | @retval EFI_SUCCESS When everything is OK.\r | |
544 | **/\r | |
545 | EFI_STATUS\r | |
546 | EFIAPI\r | |
547 | CpuMpEndOfPeiCallback (\r | |
548 | IN EFI_PEI_SERVICES **PeiServices,\r | |
549 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
550 | IN VOID *Ppi\r | |
551 | );\r | |
552 | \r | |
553 | /**\r | |
554 | Get available system memory below 1MB by specified size.\r | |
555 | \r | |
556 | @param[in] CpuMpData The pointer to CPU MP Data structure.\r | |
557 | **/\r | |
558 | VOID\r | |
559 | BackupAndPrepareWakeupBuffer(\r | |
560 | IN CPU_MP_DATA *CpuMpData\r | |
561 | );\r | |
562 | \r | |
563 | /**\r | |
564 | Restore wakeup buffer data.\r | |
565 | \r | |
566 | @param[in] CpuMpData The pointer to CPU MP Data structure.\r | |
567 | **/\r | |
568 | VOID\r | |
569 | RestoreWakeupBuffer(\r | |
570 | IN CPU_MP_DATA *CpuMpData\r | |
571 | );\r | |
572 | \r | |
573 | #endif\r | |
574 | \r |