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c4671a67 | 1 | /** @file\r |
10d1be3e | 2 | Construct MP Services Protocol on top of the EMU Thread protocol.\r |
3 | This code makes APs show up in the emulator. PcdEmuApCount is the\r | |
4 | number of APs the emulator should produce.\r | |
c4671a67 | 5 | \r |
6 | The MP Services Protocol provides a generalized way of performing following tasks:\r | |
7 | - Retrieving information of multi-processor environment and MP-related status of\r | |
8 | specific processors.\r | |
9 | - Dispatching user-provided function to APs.\r | |
10 | - Maintain MP-related processor status.\r | |
11 | \r | |
12 | The MP Services Protocol must be produced on any system with more than one logical\r | |
13 | processor.\r | |
14 | \r | |
15 | The Protocol is available only during boot time.\r | |
16 | \r | |
17 | MP Services Protocol is hardware-independent. Most of the logic of this protocol\r | |
d18d8a1d | 18 | is architecturally neutral. It abstracts the multi-processor environment and\r |
19 | status of processors, and provides interfaces to retrieve information, maintain,\r | |
c4671a67 | 20 | and dispatch.\r |
21 | \r | |
d18d8a1d | 22 | MP Services Protocol may be consumed by ACPI module. The ACPI module may use this\r |
c4671a67 | 23 | protocol to retrieve data that are needed for an MP platform and report them to OS.\r |
d18d8a1d | 24 | MP Services Protocol may also be used to program and configure processors, such\r |
c4671a67 | 25 | as MTRR synchronization for memory space attributes setting in DXE Services.\r |
d18d8a1d | 26 | MP Services Protocol may be used by non-CPU DXE drivers to speed up platform boot\r |
27 | by taking advantage of the processing capabilities of the APs, for example, using\r | |
c4671a67 | 28 | APs to help test system memory in parallel with other device initialization.\r |
29 | Diagnostics applications may also use this protocol for multi-processor.\r | |
30 | \r | |
224e1333 | 31 | Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r |
c4671a67 | 32 | Portitions Copyright (c) 2011, Apple Inc. All rights reserved.\r |
224e1333 | 33 | This program and the accompanying materials are licensed and made available under\r |
34 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
c4671a67 | 35 | The full text of the license may be found at\r |
224e1333 | 36 | http://opensource.org/licenses/bsd-license.php.\r |
37 | \r | |
38 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
c4671a67 | 39 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
40 | \r | |
224e1333 | 41 | \r |
c4671a67 | 42 | **/\r |
43 | \r | |
44 | #include "CpuDriver.h"\r | |
45 | \r | |
46 | \r | |
47 | MP_SYSTEM_DATA gMPSystem;\r | |
d18d8a1d | 48 | EMU_THREAD_THUNK_PROTOCOL *gThread = NULL;\r |
c4671a67 | 49 | EFI_EVENT gReadToBootEvent;\r |
50 | BOOLEAN gReadToBoot = FALSE;\r | |
51 | UINTN gPollInterval;\r | |
52 | \r | |
53 | \r | |
54 | BOOLEAN\r | |
55 | IsBSP (\r | |
56 | VOID\r | |
57 | )\r | |
58 | {\r | |
59 | EFI_STATUS Status;\r | |
60 | UINTN ProcessorNumber;\r | |
d18d8a1d | 61 | \r |
c4671a67 | 62 | Status = CpuMpServicesWhoAmI (&mMpSercicesTemplate, &ProcessorNumber);\r |
63 | if (EFI_ERROR (Status)) {\r | |
64 | return FALSE;\r | |
65 | }\r | |
d18d8a1d | 66 | \r |
c4671a67 | 67 | return (gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0;\r |
68 | }\r | |
69 | \r | |
70 | \r | |
71 | VOID\r | |
72 | SetApProcedure (\r | |
73 | IN PROCESSOR_DATA_BLOCK *Processor,\r | |
74 | IN EFI_AP_PROCEDURE Procedure,\r | |
75 | IN VOID *ProcedureArgument\r | |
76 | )\r | |
77 | {\r | |
10d1be3e | 78 | gThread->MutexLock (Processor->ProcedureLock);\r |
c4671a67 | 79 | Processor->Parameter = ProcedureArgument;\r |
80 | Processor->Procedure = Procedure;\r | |
10d1be3e | 81 | gThread->MutexUnlock (Processor->ProcedureLock);\r |
c4671a67 | 82 | }\r |
83 | \r | |
84 | \r | |
85 | EFI_STATUS\r | |
86 | GetNextBlockedNumber (\r | |
87 | OUT UINTN *NextNumber\r | |
88 | )\r | |
89 | {\r | |
90 | UINTN Number;\r | |
91 | PROCESSOR_STATE ProcessorState;\r | |
92 | PROCESSOR_DATA_BLOCK *Data;\r | |
93 | \r | |
94 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
95 | Data = &gMPSystem.ProcessorData[Number];\r | |
96 | if ((Data->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
97 | // Skip BSP\r | |
98 | continue;\r | |
99 | }\r | |
100 | \r | |
10d1be3e | 101 | gThread->MutexLock (Data->StateLock);\r |
c4671a67 | 102 | ProcessorState = Data->State;\r |
10d1be3e | 103 | gThread->MutexUnlock (Data->StateLock);\r |
c4671a67 | 104 | \r |
105 | if (ProcessorState == CPU_STATE_BLOCKED) {\r | |
106 | *NextNumber = Number;\r | |
107 | return EFI_SUCCESS;\r | |
108 | }\r | |
109 | }\r | |
110 | \r | |
111 | return EFI_NOT_FOUND;\r | |
112 | }\r | |
113 | \r | |
114 | \r | |
115 | \r | |
116 | \r | |
117 | /**\r | |
118 | This service retrieves the number of logical processor in the platform\r | |
119 | and the number of those logical processors that are enabled on this boot.\r | |
120 | This service may only be called from the BSP.\r | |
121 | \r | |
122 | This function is used to retrieve the following information:\r | |
123 | - The number of logical processors that are present in the system.\r | |
d18d8a1d | 124 | - The number of enabled logical processors in the system at the instant\r |
c4671a67 | 125 | this call is made.\r |
126 | \r | |
d18d8a1d | 127 | Because MP Service Protocol provides services to enable and disable processors\r |
128 | dynamically, the number of enabled logical processors may vary during the\r | |
c4671a67 | 129 | course of a boot session.\r |
d18d8a1d | 130 | \r |
131 | If this service is called from an AP, then EFI_DEVICE_ERROR is returned.\r | |
132 | If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then\r | |
133 | EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors\r | |
134 | is returned in NumberOfProcessors, the number of currently enabled processor\r | |
c4671a67 | 135 | is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.\r |
136 | \r | |
137 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
138 | instance.\r | |
139 | @param[out] NumberOfProcessors Pointer to the total number of logical\r | |
140 | processors in the system, including the BSP\r | |
141 | and disabled APs.\r | |
142 | @param[out] NumberOfEnabledProcessors Pointer to the number of enabled logical\r | |
143 | processors that exist in system, including\r | |
144 | the BSP.\r | |
145 | \r | |
d18d8a1d | 146 | @retval EFI_SUCCESS The number of logical processors and enabled\r |
c4671a67 | 147 | logical processors was retrieved.\r |
148 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
149 | @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.\r | |
150 | @retval EFI_INVALID_PARAMETER NumberOfEnabledProcessors is NULL.\r | |
151 | \r | |
152 | **/\r | |
153 | EFI_STATUS\r | |
154 | EFIAPI\r | |
155 | CpuMpServicesGetNumberOfProcessors (\r | |
156 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
157 | OUT UINTN *NumberOfProcessors,\r | |
158 | OUT UINTN *NumberOfEnabledProcessors\r | |
159 | )\r | |
160 | {\r | |
161 | if ((NumberOfProcessors == NULL) || (NumberOfEnabledProcessors == NULL)) {\r | |
162 | return EFI_INVALID_PARAMETER;\r | |
163 | }\r | |
d18d8a1d | 164 | \r |
c4671a67 | 165 | if (!IsBSP ()) {\r |
166 | return EFI_DEVICE_ERROR;\r | |
167 | }\r | |
d18d8a1d | 168 | \r |
c4671a67 | 169 | *NumberOfProcessors = gMPSystem.NumberOfProcessors;\r |
170 | *NumberOfEnabledProcessors = gMPSystem.NumberOfEnabledProcessors;\r | |
171 | return EFI_SUCCESS;\r | |
172 | }\r | |
173 | \r | |
174 | \r | |
175 | \r | |
176 | /**\r | |
177 | Gets detailed MP-related information on the requested processor at the\r | |
178 | instant this call is made. This service may only be called from the BSP.\r | |
179 | \r | |
d18d8a1d | 180 | This service retrieves detailed MP-related information about any processor\r |
c4671a67 | 181 | on the platform. Note the following:\r |
182 | - The processor information may change during the course of a boot session.\r | |
183 | - The information presented here is entirely MP related.\r | |
d18d8a1d | 184 | \r |
c4671a67 | 185 | Information regarding the number of caches and their sizes, frequency of operation,\r |
d18d8a1d | 186 | slot numbers is all considered platform-related information and is not provided\r |
c4671a67 | 187 | by this service.\r |
188 | \r | |
189 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
190 | instance.\r | |
191 | @param[in] ProcessorNumber The handle number of processor.\r | |
192 | @param[out] ProcessorInfoBuffer A pointer to the buffer where information for\r | |
193 | the requested processor is deposited.\r | |
194 | \r | |
195 | @retval EFI_SUCCESS Processor information was returned.\r | |
196 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
197 | @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.\r | |
198 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
199 | ProcessorNumber does not exist in the platform.\r | |
200 | \r | |
201 | **/\r | |
202 | EFI_STATUS\r | |
203 | EFIAPI\r | |
204 | CpuMpServicesGetProcessorInfo (\r | |
205 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
206 | IN UINTN ProcessorNumber,\r | |
207 | OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer\r | |
208 | )\r | |
209 | {\r | |
210 | if (ProcessorInfoBuffer == NULL) {\r | |
211 | return EFI_INVALID_PARAMETER;\r | |
212 | }\r | |
d18d8a1d | 213 | \r |
c4671a67 | 214 | if (!IsBSP ()) {\r |
215 | return EFI_DEVICE_ERROR;\r | |
216 | }\r | |
d18d8a1d | 217 | \r |
c4671a67 | 218 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
219 | return EFI_NOT_FOUND;\r | |
220 | }\r | |
d18d8a1d | 221 | \r |
c4671a67 | 222 | CopyMem (ProcessorInfoBuffer, &gMPSystem.ProcessorData[ProcessorNumber], sizeof (EFI_PROCESSOR_INFORMATION));\r |
223 | return EFI_SUCCESS;\r | |
224 | }\r | |
225 | \r | |
226 | \r | |
227 | /**\r | |
d18d8a1d | 228 | This service executes a caller provided function on all enabled APs. APs can\r |
229 | run either simultaneously or one at a time in sequence. This service supports\r | |
230 | both blocking and non-blocking requests. The non-blocking requests use EFI\r | |
231 | events so the BSP can detect when the APs have finished. This service may only\r | |
c4671a67 | 232 | be called from the BSP.\r |
233 | \r | |
d18d8a1d | 234 | This function is used to dispatch all the enabled APs to the function specified\r |
235 | by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned\r | |
c4671a67 | 236 | immediately and Procedure is not started on any AP.\r |
237 | \r | |
d18d8a1d | 238 | If SingleThread is TRUE, all the enabled APs execute the function specified by\r |
239 | Procedure one by one, in ascending order of processor handle number. Otherwise,\r | |
c4671a67 | 240 | all the enabled APs execute the function specified by Procedure simultaneously.\r |
241 | \r | |
d18d8a1d | 242 | If WaitEvent is NULL, execution is in blocking mode. The BSP waits until all\r |
243 | APs finish or TimeoutInMicroseconds expires. Otherwise, execution is in non-blocking\r | |
244 | mode, and the BSP returns from this service without waiting for APs. If a\r | |
245 | non-blocking mode is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
c4671a67 | 246 | is signaled, then EFI_UNSUPPORTED must be returned.\r |
247 | \r | |
d18d8a1d | 248 | If the timeout specified by TimeoutInMicroseconds expires before all APs return\r |
249 | from Procedure, then Procedure on the failed APs is terminated. All enabled APs\r | |
c4671a67 | 250 | are always available for further calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r |
d18d8a1d | 251 | and EFI_MP_SERVICES_PROTOCOL.StartupThisAP(). If FailedCpuList is not NULL, its\r |
252 | content points to the list of processor handle numbers in which Procedure was\r | |
c4671a67 | 253 | terminated.\r |
254 | \r | |
d18d8a1d | 255 | Note: It is the responsibility of the consumer of the EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r |
256 | to make sure that the nature of the code that is executed on the BSP and the\r | |
257 | dispatched APs is well controlled. The MP Services Protocol does not guarantee\r | |
258 | that the Procedure function is MP-safe. Hence, the tasks that can be run in\r | |
259 | parallel are limited to certain independent tasks and well-controlled exclusive\r | |
260 | code. EFI services and protocols may not be called by APs unless otherwise\r | |
c4671a67 | 261 | specified.\r |
262 | \r | |
d18d8a1d | 263 | In blocking execution mode, BSP waits until all APs finish or\r |
c4671a67 | 264 | TimeoutInMicroseconds expires.\r |
265 | \r | |
d18d8a1d | 266 | In non-blocking execution mode, BSP is freed to return to the caller and then\r |
267 | proceed to the next task without having to wait for APs. The following\r | |
c4671a67 | 268 | sequence needs to occur in a non-blocking execution mode:\r |
269 | \r | |
d18d8a1d | 270 | -# The caller that intends to use this MP Services Protocol in non-blocking\r |
271 | mode creates WaitEvent by calling the EFI CreateEvent() service. The caller\r | |
272 | invokes EFI_MP_SERVICES_PROTOCOL.StartupAllAPs(). If the parameter WaitEvent\r | |
273 | is not NULL, then StartupAllAPs() executes in non-blocking mode. It requests\r | |
274 | the function specified by Procedure to be started on all the enabled APs,\r | |
c4671a67 | 275 | and releases the BSP to continue with other tasks.\r |
d18d8a1d | 276 | -# The caller can use the CheckEvent() and WaitForEvent() services to check\r |
c4671a67 | 277 | the state of the WaitEvent created in step 1.\r |
d18d8a1d | 278 | -# When the APs complete their task or TimeoutInMicroSecondss expires, the MP\r |
279 | Service signals WaitEvent by calling the EFI SignalEvent() function. If\r | |
280 | FailedCpuList is not NULL, its content is available when WaitEvent is\r | |
281 | signaled. If all APs returned from Procedure prior to the timeout, then\r | |
282 | FailedCpuList is set to NULL. If not all APs return from Procedure before\r | |
283 | the timeout, then FailedCpuList is filled in with the list of the failed\r | |
284 | APs. The buffer is allocated by MP Service Protocol using AllocatePool().\r | |
c4671a67 | 285 | It is the caller's responsibility to free the buffer with FreePool() service.\r |
286 | -# This invocation of SignalEvent() function informs the caller that invoked\r | |
287 | EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() that either all the APs completed\r | |
d18d8a1d | 288 | the specified task or a timeout occurred. The contents of FailedCpuList\r |
289 | can be examined to determine which APs did not complete the specified task\r | |
c4671a67 | 290 | prior to the timeout.\r |
291 | \r | |
292 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
293 | instance.\r | |
d18d8a1d | 294 | @param[in] Procedure A pointer to the function to be run on\r |
c4671a67 | 295 | enabled APs of the system. See type\r |
296 | EFI_AP_PROCEDURE.\r | |
d18d8a1d | 297 | @param[in] SingleThread If TRUE, then all the enabled APs execute\r |
298 | the function specified by Procedure one by\r | |
299 | one, in ascending order of processor handle\r | |
300 | number. If FALSE, then all the enabled APs\r | |
c4671a67 | 301 | execute the function specified by Procedure\r |
302 | simultaneously.\r | |
303 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
d18d8a1d | 304 | service. If it is NULL, then execute in\r |
305 | blocking mode. BSP waits until all APs finish\r | |
306 | or TimeoutInMicroseconds expires. If it's\r | |
307 | not NULL, then execute in non-blocking mode.\r | |
308 | BSP requests the function specified by\r | |
309 | Procedure to be started on all the enabled\r | |
310 | APs, and go on executing immediately. If\r | |
c4671a67 | 311 | all return from Procedure, or TimeoutInMicroseconds\r |
d18d8a1d | 312 | expires, this event is signaled. The BSP\r |
313 | can use the CheckEvent() or WaitForEvent()\r | |
314 | services to check the state of event. Type\r | |
315 | EFI_EVENT is defined in CreateEvent() in\r | |
316 | the Unified Extensible Firmware Interface\r | |
317 | Specification.\r | |
318 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
319 | APs to return from Procedure, either for\r | |
320 | blocking or non-blocking mode. Zero means\r | |
321 | infinity. If the timeout expires before\r | |
c4671a67 | 322 | all APs return from Procedure, then Procedure\r |
d18d8a1d | 323 | on the failed APs is terminated. All enabled\r |
324 | APs are available for next function assigned\r | |
325 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
c4671a67 | 326 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
d18d8a1d | 327 | If the timeout expires in blocking mode,\r |
328 | BSP returns EFI_TIMEOUT. If the timeout\r | |
329 | expires in non-blocking mode, WaitEvent\r | |
c4671a67 | 330 | is signaled with SignalEvent().\r |
d18d8a1d | 331 | @param[in] ProcedureArgument The parameter passed into Procedure for\r |
c4671a67 | 332 | all APs.\r |
d18d8a1d | 333 | @param[out] FailedCpuList If NULL, this parameter is ignored. Otherwise,\r |
334 | if all APs finish successfully, then its\r | |
335 | content is set to NULL. If not all APs\r | |
336 | finish before timeout expires, then its\r | |
337 | content is set to address of the buffer\r | |
338 | holding handle numbers of the failed APs.\r | |
339 | The buffer is allocated by MP Service Protocol,\r | |
340 | and it's the caller's responsibility to\r | |
c4671a67 | 341 | free the buffer with FreePool() service.\r |
d18d8a1d | 342 | In blocking mode, it is ready for consumption\r |
343 | when the call returns. In non-blocking mode,\r | |
344 | it is ready when WaitEvent is signaled. The\r | |
345 | list of failed CPU is terminated by\r | |
c4671a67 | 346 | END_OF_CPU_LIST.\r |
347 | \r | |
d18d8a1d | 348 | @retval EFI_SUCCESS In blocking mode, all APs have finished before\r |
c4671a67 | 349 | the timeout expired.\r |
d18d8a1d | 350 | @retval EFI_SUCCESS In non-blocking mode, function has been dispatched\r |
c4671a67 | 351 | to all enabled APs.\r |
d18d8a1d | 352 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r |
353 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
c4671a67 | 354 | signaled.\r |
355 | @retval EFI_DEVICE_ERROR Caller processor is AP.\r | |
356 | @retval EFI_NOT_STARTED No enabled APs exist in the system.\r | |
357 | @retval EFI_NOT_READY Any enabled APs are busy.\r | |
d18d8a1d | 358 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r |
c4671a67 | 359 | all enabled APs have finished.\r |
360 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
361 | \r | |
362 | **/\r | |
363 | EFI_STATUS\r | |
364 | EFIAPI\r | |
365 | CpuMpServicesStartupAllAps (\r | |
366 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
367 | IN EFI_AP_PROCEDURE Procedure,\r | |
368 | IN BOOLEAN SingleThread,\r | |
369 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
370 | IN UINTN TimeoutInMicroseconds,\r | |
371 | IN VOID *ProcedureArgument OPTIONAL,\r | |
372 | OUT UINTN **FailedCpuList OPTIONAL\r | |
373 | )\r | |
374 | {\r | |
375 | EFI_STATUS Status;\r | |
376 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
c4671a67 | 377 | UINTN ListIndex;\r |
378 | UINTN Number;\r | |
379 | UINTN NextNumber;\r | |
380 | PROCESSOR_STATE APInitialState;\r | |
381 | PROCESSOR_STATE ProcessorState;\r | |
382 | INTN Timeout;\r | |
383 | \r | |
384 | \r | |
385 | if (!IsBSP ()) {\r | |
386 | return EFI_DEVICE_ERROR;\r | |
387 | }\r | |
d18d8a1d | 388 | \r |
c4671a67 | 389 | if (gMPSystem.NumberOfProcessors == 1) {\r |
390 | return EFI_NOT_STARTED;\r | |
391 | }\r | |
392 | \r | |
393 | if (Procedure == NULL) {\r | |
394 | return EFI_INVALID_PARAMETER;\r | |
395 | }\r | |
d18d8a1d | 396 | \r |
c4671a67 | 397 | if ((WaitEvent != NULL) && gReadToBoot) {\r |
398 | return EFI_UNSUPPORTED;\r | |
399 | }\r | |
d18d8a1d | 400 | \r |
401 | \r | |
c4671a67 | 402 | if (FailedCpuList != NULL) {\r |
8b6d0c05 | 403 | gMPSystem.FailedList = AllocatePool ((gMPSystem.NumberOfProcessors + 1) * sizeof (UINTN));\r |
404 | if (gMPSystem.FailedList == NULL) {\r | |
405 | return EFI_OUT_OF_RESOURCES;\r | |
406 | }\r | |
407 | SetMemN (gMPSystem.FailedList, (gMPSystem.NumberOfProcessors + 1) * sizeof (UINTN), END_OF_CPU_LIST);\r | |
408 | gMPSystem.FailedListIndex = 0;\r | |
409 | *FailedCpuList = gMPSystem.FailedList;\r | |
c4671a67 | 410 | }\r |
411 | \r | |
412 | Timeout = TimeoutInMicroseconds;\r | |
413 | \r | |
414 | ListIndex = 0;\r | |
8b6d0c05 | 415 | ProcessorData = NULL;\r |
c4671a67 | 416 | \r |
8b6d0c05 | 417 | gMPSystem.FinishCount = 0;\r |
418 | gMPSystem.StartCount = 0;\r | |
419 | gMPSystem.SingleThread = SingleThread;\r | |
420 | APInitialState = CPU_STATE_READY;\r | |
c4671a67 | 421 | \r |
422 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
423 | ProcessorData = &gMPSystem.ProcessorData[Number];\r | |
424 | \r | |
425 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
426 | // Skip BSP\r | |
427 | continue;\r | |
428 | }\r | |
429 | \r | |
8b6d0c05 | 430 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
431 | // Skip Disabled processors\r | |
432 | gMPSystem.FailedList[gMPSystem.FailedListIndex++] = Number;\r | |
433 | continue;\r | |
434 | }\r | |
435 | \r | |
c4671a67 | 436 | //\r |
437 | // Get APs prepared, and put failing APs into FailedCpuList\r | |
438 | // if "SingleThread", only 1 AP will put to ready state, other AP will be put to ready\r | |
439 | // state 1 by 1, until the previous 1 finished its task\r | |
440 | // if not "SingleThread", all APs are put to ready state from the beginning\r | |
441 | //\r | |
442 | if (ProcessorData->State == CPU_STATE_IDLE) {\r | |
443 | gMPSystem.StartCount++;\r | |
444 | \r | |
10d1be3e | 445 | gThread->MutexLock (&ProcessorData->StateLock);\r |
c4671a67 | 446 | ProcessorData->State = APInitialState;\r |
10d1be3e | 447 | gThread->MutexUnlock (&ProcessorData->StateLock);\r |
c4671a67 | 448 | \r |
449 | if (SingleThread) {\r | |
450 | APInitialState = CPU_STATE_BLOCKED;\r | |
451 | }\r | |
8b6d0c05 | 452 | } else {\r |
453 | return EFI_NOT_READY;\r | |
c4671a67 | 454 | }\r |
455 | }\r | |
d18d8a1d | 456 | \r |
8b6d0c05 | 457 | if (WaitEvent != NULL) {\r |
458 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
d18d8a1d | 459 | ProcessorData = &gMPSystem.ProcessorData[Number];\r |
8b6d0c05 | 460 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r |
461 | // Skip BSP\r | |
462 | continue;\r | |
463 | }\r | |
464 | \r | |
465 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r | |
466 | // Skip Disabled processors\r | |
467 | continue;\r | |
468 | }\r | |
d18d8a1d | 469 | \r |
8b6d0c05 | 470 | SetApProcedure (ProcessorData, Procedure, ProcedureArgument);\r |
c4671a67 | 471 | }\r |
8b6d0c05 | 472 | \r |
473 | //\r | |
474 | // Save data into private data structure, and create timer to poll AP state before exiting\r | |
475 | //\r | |
476 | gMPSystem.Procedure = Procedure;\r | |
477 | gMPSystem.ProcedureArgument = ProcedureArgument;\r | |
478 | gMPSystem.WaitEvent = WaitEvent;\r | |
479 | gMPSystem.Timeout = TimeoutInMicroseconds;\r | |
480 | gMPSystem.TimeoutActive = (BOOLEAN)(TimeoutInMicroseconds != 0);\r | |
481 | Status = gBS->SetTimer (\r | |
482 | gMPSystem.CheckAllAPsEvent,\r | |
483 | TimerPeriodic,\r | |
484 | gPollInterval\r | |
485 | );\r | |
486 | return Status;\r | |
487 | \r | |
c4671a67 | 488 | }\r |
489 | \r | |
490 | while (TRUE) {\r | |
491 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
d18d8a1d | 492 | ProcessorData = &gMPSystem.ProcessorData[Number];\r |
c4671a67 | 493 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r |
494 | // Skip BSP\r | |
495 | continue;\r | |
496 | }\r | |
497 | \r | |
8b6d0c05 | 498 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
499 | // Skip Disabled processors\r | |
500 | continue;\r | |
501 | }\r | |
502 | \r | |
10d1be3e | 503 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 504 | ProcessorState = ProcessorData->State;\r |
10d1be3e | 505 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 506 | \r |
507 | switch (ProcessorState) {\r | |
508 | case CPU_STATE_READY:\r | |
509 | SetApProcedure (ProcessorData, Procedure, ProcedureArgument);\r | |
510 | break;\r | |
511 | \r | |
512 | case CPU_STATE_FINISHED:\r | |
513 | gMPSystem.FinishCount++;\r | |
514 | if (SingleThread) {\r | |
515 | Status = GetNextBlockedNumber (&NextNumber);\r | |
516 | if (!EFI_ERROR (Status)) {\r | |
517 | gMPSystem.ProcessorData[NextNumber].State = CPU_STATE_READY;\r | |
518 | }\r | |
519 | }\r | |
520 | \r | |
521 | ProcessorData->State = CPU_STATE_IDLE;\r | |
522 | break;\r | |
523 | \r | |
524 | default:\r | |
525 | break;\r | |
526 | }\r | |
527 | }\r | |
528 | \r | |
529 | if (gMPSystem.FinishCount == gMPSystem.StartCount) {\r | |
8b6d0c05 | 530 | Status = EFI_SUCCESS;\r |
531 | goto Done;\r | |
c4671a67 | 532 | }\r |
533 | \r | |
534 | if ((TimeoutInMicroseconds != 0) && (Timeout < 0)) {\r | |
8b6d0c05 | 535 | Status = EFI_TIMEOUT;\r |
536 | goto Done;\r | |
c4671a67 | 537 | }\r |
538 | \r | |
539 | gBS->Stall (gPollInterval);\r | |
540 | Timeout -= gPollInterval;\r | |
541 | }\r | |
542 | \r | |
8b6d0c05 | 543 | Done:\r |
544 | if (FailedCpuList != NULL) {\r | |
545 | if (gMPSystem.FailedListIndex == 0) {\r | |
546 | FreePool (*FailedCpuList);\r | |
547 | *FailedCpuList = NULL;\r | |
548 | }\r | |
549 | }\r | |
550 | \r | |
c4671a67 | 551 | return EFI_SUCCESS;\r |
552 | }\r | |
553 | \r | |
554 | \r | |
555 | /**\r | |
d18d8a1d | 556 | This service lets the caller get one enabled AP to execute a caller-provided\r |
557 | function. The caller can request the BSP to either wait for the completion\r | |
558 | of the AP or just proceed with the next task by using the EFI event mechanism.\r | |
559 | See EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() for more details on non-blocking\r | |
c4671a67 | 560 | execution support. This service may only be called from the BSP.\r |
561 | \r | |
d18d8a1d | 562 | This function is used to dispatch one enabled AP to the function specified by\r |
563 | Procedure passing in the argument specified by ProcedureArgument. If WaitEvent\r | |
564 | is NULL, execution is in blocking mode. The BSP waits until the AP finishes or\r | |
565 | TimeoutInMicroSecondss expires. Otherwise, execution is in non-blocking mode.\r | |
566 | BSP proceeds to the next task without waiting for the AP. If a non-blocking mode\r | |
567 | is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled,\r | |
c4671a67 | 568 | then EFI_UNSUPPORTED must be returned.\r |
d18d8a1d | 569 | \r |
570 | If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r | |
571 | from Procedure, then execution of Procedure by the AP is terminated. The AP is\r | |
572 | available for subsequent calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() and\r | |
c4671a67 | 573 | EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
574 | \r | |
575 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
576 | instance.\r | |
d18d8a1d | 577 | @param[in] Procedure A pointer to the function to be run on\r |
c4671a67 | 578 | enabled APs of the system. See type\r |
579 | EFI_AP_PROCEDURE.\r | |
d18d8a1d | 580 | @param[in] ProcessorNumber The handle number of the AP. The range is\r |
c4671a67 | 581 | from 0 to the total number of logical\r |
d18d8a1d | 582 | processors minus 1. The total number of\r |
c4671a67 | 583 | logical processors can be retrieved by\r |
584 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
585 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
d18d8a1d | 586 | service. If it is NULL, then execute in\r |
587 | blocking mode. BSP waits until all APs finish\r | |
588 | or TimeoutInMicroseconds expires. If it's\r | |
589 | not NULL, then execute in non-blocking mode.\r | |
590 | BSP requests the function specified by\r | |
591 | Procedure to be started on all the enabled\r | |
592 | APs, and go on executing immediately. If\r | |
c4671a67 | 593 | all return from Procedure or TimeoutInMicroseconds\r |
d18d8a1d | 594 | expires, this event is signaled. The BSP\r |
595 | can use the CheckEvent() or WaitForEvent()\r | |
596 | services to check the state of event. Type\r | |
597 | EFI_EVENT is defined in CreateEvent() in\r | |
598 | the Unified Extensible Firmware Interface\r | |
599 | Specification.\r | |
600 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
601 | APs to return from Procedure, either for\r | |
602 | blocking or non-blocking mode. Zero means\r | |
603 | infinity. If the timeout expires before\r | |
c4671a67 | 604 | all APs return from Procedure, then Procedure\r |
d18d8a1d | 605 | on the failed APs is terminated. All enabled\r |
606 | APs are available for next function assigned\r | |
607 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
c4671a67 | 608 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
d18d8a1d | 609 | If the timeout expires in blocking mode,\r |
610 | BSP returns EFI_TIMEOUT. If the timeout\r | |
611 | expires in non-blocking mode, WaitEvent\r | |
c4671a67 | 612 | is signaled with SignalEvent().\r |
d18d8a1d | 613 | @param[in] ProcedureArgument The parameter passed into Procedure for\r |
c4671a67 | 614 | all APs.\r |
d18d8a1d | 615 | @param[out] Finished If NULL, this parameter is ignored. In\r |
c4671a67 | 616 | blocking mode, this parameter is ignored.\r |
d18d8a1d | 617 | In non-blocking mode, if AP returns from\r |
c4671a67 | 618 | Procedure before the timeout expires, its\r |
d18d8a1d | 619 | content is set to TRUE. Otherwise, the\r |
c4671a67 | 620 | value is set to FALSE. The caller can\r |
d18d8a1d | 621 | determine if the AP returned from Procedure\r |
c4671a67 | 622 | by evaluating this value.\r |
623 | \r | |
d18d8a1d | 624 | @retval EFI_SUCCESS In blocking mode, specified AP finished before\r |
c4671a67 | 625 | the timeout expires.\r |
d18d8a1d | 626 | @retval EFI_SUCCESS In non-blocking mode, the function has been\r |
c4671a67 | 627 | dispatched to specified AP.\r |
d18d8a1d | 628 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r |
629 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
c4671a67 | 630 | signaled.\r |
631 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
d18d8a1d | 632 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r |
c4671a67 | 633 | the specified AP has finished.\r |
634 | @retval EFI_NOT_READY The specified AP is busy.\r | |
d18d8a1d | 635 | @retval EFI_NOT_FOUND The processor with the handle specified by\r |
c4671a67 | 636 | ProcessorNumber does not exist.\r |
637 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r | |
638 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
639 | \r | |
640 | **/\r | |
641 | EFI_STATUS\r | |
642 | EFIAPI\r | |
643 | CpuMpServicesStartupThisAP (\r | |
644 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
645 | IN EFI_AP_PROCEDURE Procedure,\r | |
646 | IN UINTN ProcessorNumber,\r | |
647 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
648 | IN UINTN TimeoutInMicroseconds,\r | |
649 | IN VOID *ProcedureArgument OPTIONAL,\r | |
650 | OUT BOOLEAN *Finished OPTIONAL\r | |
651 | )\r | |
652 | {\r | |
653 | EFI_STATUS Status;\r | |
654 | INTN Timeout;\r | |
d18d8a1d | 655 | \r |
c4671a67 | 656 | if (!IsBSP ()) {\r |
657 | return EFI_DEVICE_ERROR;\r | |
658 | }\r | |
d18d8a1d | 659 | \r |
c4671a67 | 660 | if (Procedure == NULL) {\r |
661 | return EFI_INVALID_PARAMETER;\r | |
662 | }\r | |
d18d8a1d | 663 | \r |
c4671a67 | 664 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
665 | return EFI_NOT_FOUND;\r | |
666 | }\r | |
d18d8a1d | 667 | \r |
c4671a67 | 668 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r |
669 | return EFI_INVALID_PARAMETER;\r | |
670 | }\r | |
671 | \r | |
672 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r | |
673 | return EFI_NOT_READY;\r | |
674 | }\r | |
675 | \r | |
676 | if ((WaitEvent != NULL) && gReadToBoot) {\r | |
677 | return EFI_UNSUPPORTED;\r | |
678 | }\r | |
679 | \r | |
680 | Timeout = TimeoutInMicroseconds;\r | |
681 | \r | |
682 | gMPSystem.StartCount = 1;\r | |
683 | gMPSystem.FinishCount = 0;\r | |
684 | \r | |
685 | SetApProcedure (&gMPSystem.ProcessorData[ProcessorNumber], Procedure, ProcedureArgument);\r | |
686 | \r | |
8b6d0c05 | 687 | if (WaitEvent != NULL) {\r |
688 | // Non Blocking\r | |
689 | gMPSystem.WaitEvent = WaitEvent;\r | |
690 | Status = gBS->SetTimer (\r | |
691 | gMPSystem.ProcessorData[ProcessorNumber].CheckThisAPEvent,\r | |
692 | TimerPeriodic,\r | |
693 | gPollInterval\r | |
694 | );\r | |
695 | return EFI_SUCCESS;\r | |
696 | }\r | |
697 | \r | |
698 | // Blocking\r | |
c4671a67 | 699 | while (TRUE) {\r |
10d1be3e | 700 | gThread->MutexLock (&gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 701 | if (gMPSystem.ProcessorData[ProcessorNumber].State == CPU_STATE_FINISHED) {\r |
702 | gMPSystem.ProcessorData[ProcessorNumber].State = CPU_STATE_IDLE;\r | |
10d1be3e | 703 | gThread->MutexUnlock (&gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 704 | break;\r |
705 | }\r | |
706 | \r | |
10d1be3e | 707 | gThread->MutexUnlock (&gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 708 | \r |
709 | if ((TimeoutInMicroseconds != 0) && (Timeout < 0)) {\r | |
c4671a67 | 710 | return EFI_TIMEOUT;\r |
711 | }\r | |
712 | \r | |
713 | gBS->Stall (gPollInterval);\r | |
714 | Timeout -= gPollInterval;\r | |
715 | }\r | |
716 | \r | |
717 | return EFI_SUCCESS;\r | |
718 | \r | |
719 | }\r | |
720 | \r | |
721 | \r | |
722 | /**\r | |
d18d8a1d | 723 | This service switches the requested AP to be the BSP from that point onward.\r |
724 | This service changes the BSP for all purposes. This call can only be performed\r | |
c4671a67 | 725 | by the current BSP.\r |
726 | \r | |
d18d8a1d | 727 | This service switches the requested AP to be the BSP from that point onward.\r |
728 | This service changes the BSP for all purposes. The new BSP can take over the\r | |
729 | execution of the old BSP and continue seamlessly from where the old one left\r | |
730 | off. This service may not be supported after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
c4671a67 | 731 | is signaled.\r |
732 | \r | |
d18d8a1d | 733 | If the BSP cannot be switched prior to the return from this service, then\r |
c4671a67 | 734 | EFI_UNSUPPORTED must be returned.\r |
735 | \r | |
736 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 737 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
738 | BSP. The range is from 0 to the total number of\r | |
739 | logical processors minus 1. The total number of\r | |
c4671a67 | 740 | logical processors can be retrieved by\r |
741 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
d18d8a1d | 742 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an\r |
c4671a67 | 743 | enabled AP. Otherwise, it will be disabled.\r |
744 | \r | |
745 | @retval EFI_SUCCESS BSP successfully switched.\r | |
d18d8a1d | 746 | @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to\r |
c4671a67 | 747 | this service returning.\r |
748 | @retval EFI_UNSUPPORTED Switching the BSP is not supported.\r | |
749 | @retval EFI_SUCCESS The calling processor is an AP.\r | |
750 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
751 | ProcessorNumber does not exist.\r | |
d18d8a1d | 752 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or\r |
c4671a67 | 753 | a disabled AP.\r |
754 | @retval EFI_NOT_READY The specified AP is busy.\r | |
755 | \r | |
756 | **/\r | |
757 | EFI_STATUS\r | |
758 | EFIAPI\r | |
759 | CpuMpServicesSwitchBSP (\r | |
760 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
761 | IN UINTN ProcessorNumber,\r | |
762 | IN BOOLEAN EnableOldBSP\r | |
763 | )\r | |
764 | {\r | |
765 | UINTN Index;\r | |
d18d8a1d | 766 | \r |
c4671a67 | 767 | if (!IsBSP ()) {\r |
768 | return EFI_DEVICE_ERROR;\r | |
769 | }\r | |
d18d8a1d | 770 | \r |
c4671a67 | 771 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
772 | return EFI_NOT_FOUND;\r | |
773 | }\r | |
d18d8a1d | 774 | \r |
c4671a67 | 775 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
776 | return EFI_INVALID_PARAMETER;\r | |
777 | }\r | |
778 | \r | |
779 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
780 | return EFI_INVALID_PARAMETER;\r | |
781 | }\r | |
d18d8a1d | 782 | \r |
c4671a67 | 783 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r |
784 | if ((gMPSystem.ProcessorData[Index].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
785 | break;\r | |
786 | }\r | |
787 | }\r | |
788 | ASSERT (Index != gMPSystem.NumberOfProcessors);\r | |
d18d8a1d | 789 | \r |
c4671a67 | 790 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
791 | return EFI_NOT_READY;\r | |
792 | }\r | |
d18d8a1d | 793 | \r |
c4671a67 | 794 | // Skip for now as we need switch a bunch of stack stuff around and it's complex\r |
795 | // May not be worth it?\r | |
796 | return EFI_NOT_READY;\r | |
797 | }\r | |
798 | \r | |
799 | \r | |
800 | /**\r | |
d18d8a1d | 801 | This service lets the caller enable or disable an AP from this point onward.\r |
c4671a67 | 802 | This service may only be called from the BSP.\r |
803 | \r | |
d18d8a1d | 804 | This service allows the caller enable or disable an AP from this point onward.\r |
805 | The caller can optionally specify the health status of the AP by Health. If\r | |
806 | an AP is being disabled, then the state of the disabled AP is implementation\r | |
807 | dependent. If an AP is enabled, then the implementation must guarantee that a\r | |
808 | complete initialization sequence is performed on the AP, so the AP is in a state\r | |
809 | that is compatible with an MP operating system. This service may not be supported\r | |
c4671a67 | 810 | after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled.\r |
811 | \r | |
d18d8a1d | 812 | If the enable or disable AP operation cannot be completed prior to the return\r |
c4671a67 | 813 | from this service, then EFI_UNSUPPORTED must be returned.\r |
814 | \r | |
815 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 816 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
817 | BSP. The range is from 0 to the total number of\r | |
818 | logical processors minus 1. The total number of\r | |
c4671a67 | 819 | logical processors can be retrieved by\r |
820 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
d18d8a1d | 821 | @param[in] EnableAP Specifies the new state for the processor for\r |
c4671a67 | 822 | enabled, FALSE for disabled.\r |
d18d8a1d | 823 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies\r |
824 | the new health status of the AP. This flag\r | |
825 | corresponds to StatusFlag defined in\r | |
826 | EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only\r | |
827 | the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r | |
828 | bits are ignored. If it is NULL, this parameter\r | |
c4671a67 | 829 | is ignored.\r |
830 | \r | |
831 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r | |
d18d8a1d | 832 | @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed\r |
c4671a67 | 833 | prior to this service returning.\r |
834 | @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r | |
835 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
836 | @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r | |
837 | does not exist.\r | |
838 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r | |
839 | \r | |
840 | **/\r | |
841 | EFI_STATUS\r | |
842 | EFIAPI\r | |
843 | CpuMpServicesEnableDisableAP (\r | |
844 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
845 | IN UINTN ProcessorNumber,\r | |
846 | IN BOOLEAN EnableAP,\r | |
847 | IN UINT32 *HealthFlag OPTIONAL\r | |
848 | )\r | |
849 | {\r | |
850 | if (!IsBSP ()) {\r | |
851 | return EFI_DEVICE_ERROR;\r | |
852 | }\r | |
d18d8a1d | 853 | \r |
c4671a67 | 854 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
855 | return EFI_NOT_FOUND;\r | |
856 | }\r | |
d18d8a1d | 857 | \r |
c4671a67 | 858 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r |
859 | return EFI_INVALID_PARAMETER;\r | |
d18d8a1d | 860 | }\r |
c4671a67 | 861 | \r |
862 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r | |
863 | return EFI_UNSUPPORTED;\r | |
864 | }\r | |
865 | \r | |
10d1be3e | 866 | gThread->MutexLock (&gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
d18d8a1d | 867 | \r |
c4671a67 | 868 | if (EnableAP) {\r |
869 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0 ) {\r | |
870 | gMPSystem.NumberOfEnabledProcessors++;\r | |
871 | }\r | |
872 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= PROCESSOR_ENABLED_BIT;\r | |
873 | } else {\r | |
874 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == PROCESSOR_ENABLED_BIT ) {\r | |
875 | gMPSystem.NumberOfEnabledProcessors--;\r | |
876 | }\r | |
877 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag &= ~PROCESSOR_ENABLED_BIT;\r | |
878 | }\r | |
d18d8a1d | 879 | \r |
c4671a67 | 880 | if (HealthFlag != NULL) {\r |
881 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag &= ~PROCESSOR_HEALTH_STATUS_BIT;\r | |
882 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT);\r | |
883 | }\r | |
d18d8a1d | 884 | \r |
10d1be3e | 885 | gThread->MutexUnlock (&gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
d18d8a1d | 886 | \r |
c4671a67 | 887 | return EFI_SUCCESS;\r |
888 | }\r | |
889 | \r | |
890 | \r | |
891 | /**\r | |
d18d8a1d | 892 | This return the handle number for the calling processor. This service may be\r |
c4671a67 | 893 | called from the BSP and APs.\r |
894 | \r | |
d18d8a1d | 895 | This service returns the processor handle number for the calling processor.\r |
896 | The returned value is in the range from 0 to the total number of logical\r | |
897 | processors minus 1. The total number of logical processors can be retrieved\r | |
898 | with EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors(). This service may be\r | |
899 | called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r | |
900 | is returned. Otherwise, the current processors handle number is returned in\r | |
c4671a67 | 901 | ProcessorNumber, and EFI_SUCCESS is returned.\r |
902 | \r | |
903 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 904 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
905 | BSP. The range is from 0 to the total number of\r | |
906 | logical processors minus 1. The total number of\r | |
c4671a67 | 907 | logical processors can be retrieved by\r |
908 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
909 | \r | |
d18d8a1d | 910 | @retval EFI_SUCCESS The current processor handle number was returned\r |
c4671a67 | 911 | in ProcessorNumber.\r |
912 | @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r | |
913 | \r | |
914 | **/\r | |
915 | EFI_STATUS\r | |
916 | EFIAPI\r | |
917 | CpuMpServicesWhoAmI (\r | |
918 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
919 | OUT UINTN *ProcessorNumber\r | |
920 | )\r | |
921 | {\r | |
922 | UINTN Index;\r | |
923 | UINT64 ProcessorId;\r | |
d18d8a1d | 924 | \r |
c4671a67 | 925 | if (ProcessorNumber == NULL) {\r |
926 | return EFI_INVALID_PARAMETER;\r | |
927 | }\r | |
d18d8a1d | 928 | \r |
10d1be3e | 929 | ProcessorId = gThread->Self ();\r |
c4671a67 | 930 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r |
931 | if (gMPSystem.ProcessorData[Index].Info.ProcessorId == ProcessorId) {\r | |
932 | break;\r | |
933 | }\r | |
934 | }\r | |
935 | \r | |
936 | *ProcessorNumber = Index;\r | |
937 | return EFI_SUCCESS;\r | |
938 | }\r | |
939 | \r | |
940 | \r | |
941 | \r | |
942 | EFI_MP_SERVICES_PROTOCOL mMpSercicesTemplate = {\r | |
943 | CpuMpServicesGetNumberOfProcessors,\r | |
944 | CpuMpServicesGetProcessorInfo,\r | |
945 | CpuMpServicesStartupAllAps,\r | |
946 | CpuMpServicesStartupThisAP,\r | |
947 | CpuMpServicesSwitchBSP,\r | |
948 | CpuMpServicesEnableDisableAP,\r | |
949 | CpuMpServicesWhoAmI\r | |
950 | };\r | |
951 | \r | |
952 | \r | |
953 | \r | |
954 | /*++\r | |
955 | If timeout occurs in StartupAllAps(), a timer is set, which invokes this\r | |
956 | procedure periodically to check whether all APs have finished.\r | |
957 | \r | |
958 | \r | |
959 | --*/\r | |
960 | VOID\r | |
961 | EFIAPI\r | |
962 | CpuCheckAllAPsStatus (\r | |
963 | IN EFI_EVENT Event,\r | |
964 | IN VOID *Context\r | |
965 | )\r | |
966 | {\r | |
967 | UINTN ProcessorNumber;\r | |
968 | UINTN NextNumber;\r | |
969 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
970 | PROCESSOR_DATA_BLOCK *NextData;\r | |
971 | EFI_STATUS Status;\r | |
972 | PROCESSOR_STATE ProcessorState;\r | |
8b6d0c05 | 973 | UINTN Cpu;\r |
974 | BOOLEAN Found;\r | |
c4671a67 | 975 | \r |
8b6d0c05 | 976 | if (gMPSystem.TimeoutActive) {\r |
977 | gMPSystem.Timeout -= gPollInterval;\r | |
978 | }\r | |
d18d8a1d | 979 | \r |
224e1333 | 980 | ProcessorData = (PROCESSOR_DATA_BLOCK *) Context;\r |
981 | \r | |
c4671a67 | 982 | for (ProcessorNumber = 0; ProcessorNumber < gMPSystem.NumberOfProcessors; ProcessorNumber++) {\r |
983 | if ((ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
984 | // Skip BSP\r | |
985 | continue;\r | |
986 | }\r | |
987 | \r | |
8b6d0c05 | 988 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
989 | // Skip Disabled processors\r | |
990 | continue;\r | |
991 | }\r | |
992 | \r | |
c4671a67 | 993 | // This is an Interrupt Service routine.\r |
994 | // This can grab a lock that is held in a non-interrupt\r | |
995 | // context. Meaning deadlock. Which is a bad thing.\r | |
996 | // So, try lock it. If we can get it, cool, do our thing.\r | |
997 | // otherwise, just dump out & try again on the next iteration.\r | |
10d1be3e | 998 | Status = gThread->MutexTryLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 999 | if (EFI_ERROR(Status)) {\r |
1000 | return;\r | |
1001 | }\r | |
1002 | ProcessorState = gMPSystem.ProcessorData[ProcessorNumber].State;\r | |
10d1be3e | 1003 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 1004 | \r |
1005 | switch (ProcessorState) {\r | |
1006 | case CPU_STATE_READY:\r | |
1007 | SetApProcedure (ProcessorData, gMPSystem.Procedure, gMPSystem.ProcedureArgument);\r | |
1008 | break;\r | |
1009 | \r | |
1010 | case CPU_STATE_FINISHED:\r | |
1011 | if (gMPSystem.SingleThread) {\r | |
1012 | Status = GetNextBlockedNumber (&NextNumber);\r | |
1013 | if (!EFI_ERROR (Status)) {\r | |
1014 | NextData = &gMPSystem.ProcessorData[NextNumber];\r | |
1015 | \r | |
10d1be3e | 1016 | gThread->MutexLock (&NextData->ProcedureLock);\r |
c4671a67 | 1017 | NextData->State = CPU_STATE_READY;\r |
10d1be3e | 1018 | gThread->MutexUnlock (&NextData->ProcedureLock);\r |
c4671a67 | 1019 | \r |
1020 | SetApProcedure (NextData, gMPSystem.Procedure, gMPSystem.ProcedureArgument);\r | |
1021 | }\r | |
1022 | }\r | |
1023 | \r | |
1024 | gMPSystem.ProcessorData[ProcessorNumber].State = CPU_STATE_IDLE;\r | |
1025 | gMPSystem.FinishCount++;\r | |
1026 | break;\r | |
1027 | \r | |
1028 | default:\r | |
1029 | break;\r | |
1030 | }\r | |
1031 | }\r | |
d18d8a1d | 1032 | \r |
8b6d0c05 | 1033 | if (gMPSystem.TimeoutActive && gMPSystem.Timeout < 0) {\r |
1034 | //\r | |
1035 | // Timeout\r | |
1036 | //\r | |
1037 | if (gMPSystem.FailedList != NULL) {\r | |
1038 | for (ProcessorNumber = 0; ProcessorNumber < gMPSystem.NumberOfProcessors; ProcessorNumber++) {\r | |
1039 | if ((ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
1040 | // Skip BSP\r | |
1041 | continue;\r | |
1042 | }\r | |
c4671a67 | 1043 | \r |
8b6d0c05 | 1044 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
1045 | // Skip Disabled processors\r | |
1046 | continue;\r | |
1047 | }\r | |
d18d8a1d | 1048 | \r |
1049 | // Mark the\r | |
8b6d0c05 | 1050 | Status = gThread->MutexTryLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
1051 | if (EFI_ERROR(Status)) {\r | |
1052 | return;\r | |
1053 | }\r | |
1054 | ProcessorState = gMPSystem.ProcessorData[ProcessorNumber].State;\r | |
1055 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r | |
d18d8a1d | 1056 | \r |
8b6d0c05 | 1057 | if (ProcessorState != CPU_STATE_IDLE) {\r |
1058 | // If we are retrying make sure we don't double count\r | |
1059 | for (Cpu = 0, Found = FALSE; Cpu < gMPSystem.NumberOfProcessors; Cpu++) {\r | |
1060 | if (gMPSystem.FailedList[Cpu] == END_OF_CPU_LIST) {\r | |
1061 | break;\r | |
1062 | }\r | |
1063 | if (gMPSystem.FailedList[ProcessorNumber] == Cpu) {\r | |
1064 | Found = TRUE;\r | |
1065 | break;\r | |
1066 | }\r | |
1067 | }\r | |
1068 | if (!Found) {\r | |
1069 | gMPSystem.FailedList[gMPSystem.FailedListIndex++] = Cpu;\r | |
1070 | }\r | |
1071 | }\r | |
1072 | }\r | |
1073 | }\r | |
1074 | // Force terminal exit\r | |
1075 | gMPSystem.FinishCount = gMPSystem.StartCount;\r | |
1076 | }\r | |
1077 | \r | |
1078 | if (gMPSystem.FinishCount != gMPSystem.StartCount) {\r | |
1079 | return;\r | |
c4671a67 | 1080 | }\r |
d18d8a1d | 1081 | \r |
8b6d0c05 | 1082 | gBS->SetTimer (\r |
1083 | gMPSystem.CheckAllAPsEvent,\r | |
1084 | TimerCancel,\r | |
1085 | 0\r | |
1086 | );\r | |
1087 | \r | |
1088 | if (gMPSystem.FailedListIndex == 0) {\r | |
1089 | if (gMPSystem.FailedList != NULL) {\r | |
1090 | FreePool (gMPSystem.FailedList);\r | |
1091 | gMPSystem.FailedList = NULL;\r | |
1092 | }\r | |
1093 | }\r | |
1094 | \r | |
1095 | Status = gBS->SignalEvent (gMPSystem.WaitEvent);\r | |
c4671a67 | 1096 | \r |
1097 | return ;\r | |
1098 | }\r | |
1099 | \r | |
1100 | VOID\r | |
1101 | EFIAPI\r | |
1102 | CpuCheckThisAPStatus (\r | |
1103 | IN EFI_EVENT Event,\r | |
1104 | IN VOID *Context\r | |
1105 | )\r | |
1106 | {\r | |
1107 | EFI_STATUS Status;\r | |
1108 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
1109 | PROCESSOR_STATE ProcessorState;\r | |
1110 | \r | |
1111 | ProcessorData = (PROCESSOR_DATA_BLOCK *) Context;\r | |
1112 | \r | |
1113 | //\r | |
8b6d0c05 | 1114 | // This is an Interrupt Service routine.\r |
1115 | // that can grab a lock that is held in a non-interrupt\r | |
c4671a67 | 1116 | // context. Meaning deadlock. Which is a badddd thing.\r |
1117 | // So, try lock it. If we can get it, cool, do our thing.\r | |
1118 | // otherwise, just dump out & try again on the next iteration.\r | |
1119 | //\r | |
10d1be3e | 1120 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
c4671a67 | 1121 | if (EFI_ERROR(Status)) {\r |
1122 | return;\r | |
1123 | }\r | |
1124 | ProcessorState = ProcessorData->State;\r | |
10d1be3e | 1125 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1126 | \r |
1127 | if (ProcessorState == CPU_STATE_FINISHED) {\r | |
1128 | Status = gBS->SetTimer (ProcessorData->CheckThisAPEvent, TimerCancel, 0);\r | |
1129 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1130 | \r |
c4671a67 | 1131 | Status = gBS->SignalEvent (gMPSystem.WaitEvent);\r |
1132 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1133 | \r |
10d1be3e | 1134 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1135 | ProcessorData->State = CPU_STATE_IDLE;\r |
10d1be3e | 1136 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1137 | }\r |
1138 | \r | |
1139 | return ;\r | |
1140 | }\r | |
1141 | \r | |
1142 | \r | |
1143 | /*++\r | |
1144 | This function is called by all processors (both BSP and AP) once and collects MP related data\r | |
1145 | \r | |
1146 | MPSystemData - Pointer to the data structure containing MP related data\r | |
1147 | BSP - TRUE if the CPU is BSP\r | |
1148 | \r | |
1149 | EFI_SUCCESS - Data for the processor collected and filled in\r | |
1150 | \r | |
1151 | --*/\r | |
1152 | EFI_STATUS\r | |
1153 | FillInProcessorInformation (\r | |
1154 | IN BOOLEAN BSP,\r | |
1155 | IN UINTN ProcessorNumber\r | |
1156 | )\r | |
1157 | {\r | |
1158 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
1159 | \r | |
1160 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r | |
d18d8a1d | 1161 | \r |
10d1be3e | 1162 | gMPSystem.ProcessorData[ProcessorNumber].Info.ProcessorId = gThread->Self ();\r |
c4671a67 | 1163 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag = PROCESSOR_ENABLED_BIT | PROCESSOR_HEALTH_STATUS_BIT;\r |
1164 | if (BSP) {\r | |
1165 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= PROCESSOR_AS_BSP_BIT;\r | |
1166 | }\r | |
d18d8a1d | 1167 | \r |
c4671a67 | 1168 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Package = ProcessorNumber;\r |
1169 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Core = 0;\r | |
1170 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Thread = 0;\r | |
1171 | gMPSystem.ProcessorData[ProcessorNumber].State = BSP ? CPU_STATE_BUSY : CPU_STATE_IDLE;\r | |
d18d8a1d | 1172 | \r |
c4671a67 | 1173 | gMPSystem.ProcessorData[ProcessorNumber].Procedure = NULL;\r |
1174 | gMPSystem.ProcessorData[ProcessorNumber].Parameter = NULL;\r | |
10d1be3e | 1175 | gMPSystem.ProcessorData[ProcessorNumber].StateLock = gThread->MutexInit ();\r |
1176 | gMPSystem.ProcessorData[ProcessorNumber].ProcedureLock = gThread->MutexInit ();\r | |
c4671a67 | 1177 | \r |
1178 | return EFI_SUCCESS;\r | |
1179 | }\r | |
1180 | \r | |
1181 | VOID *\r | |
1182 | EFIAPI\r | |
1183 | CpuDriverApIdolLoop (\r | |
1184 | VOID *Context\r | |
1185 | )\r | |
1186 | {\r | |
1187 | EFI_AP_PROCEDURE Procedure;\r | |
1188 | VOID *Parameter;\r | |
1189 | UINTN ProcessorNumber;\r | |
1190 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
d18d8a1d | 1191 | \r |
c4671a67 | 1192 | ProcessorNumber = (UINTN)Context;\r |
1193 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r | |
d18d8a1d | 1194 | \r |
10d1be3e | 1195 | ProcessorData->Info.ProcessorId = gThread->Self ();\r |
d18d8a1d | 1196 | \r |
c4671a67 | 1197 | while (TRUE) {\r |
1198 | //\r | |
1199 | // Make a local copy on the stack to be extra safe\r | |
1200 | //\r | |
10d1be3e | 1201 | gThread->MutexLock (ProcessorData->ProcedureLock);\r |
c4671a67 | 1202 | Procedure = ProcessorData->Procedure;\r |
1203 | Parameter = ProcessorData->Parameter;\r | |
10d1be3e | 1204 | gThread->MutexUnlock (ProcessorData->ProcedureLock);\r |
d18d8a1d | 1205 | \r |
c4671a67 | 1206 | if (Procedure != NULL) {\r |
10d1be3e | 1207 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1208 | ProcessorData->State = CPU_STATE_BUSY;\r |
10d1be3e | 1209 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
d18d8a1d | 1210 | \r |
c4671a67 | 1211 | Procedure (Parameter);\r |
d18d8a1d | 1212 | \r |
10d1be3e | 1213 | gThread->MutexLock (ProcessorData->ProcedureLock);\r |
c4671a67 | 1214 | ProcessorData->Procedure = NULL;\r |
10d1be3e | 1215 | gThread->MutexUnlock (ProcessorData->ProcedureLock);\r |
d18d8a1d | 1216 | \r |
10d1be3e | 1217 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1218 | ProcessorData->State = CPU_STATE_FINISHED;\r |
d18d8a1d | 1219 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1220 | }\r |
d18d8a1d | 1221 | \r |
c4671a67 | 1222 | // Poll 5 times a seconds, 200ms\r |
1223 | // Don't want to burn too many system resources doing nothing.\r | |
1ef41207 | 1224 | gEmuThunk->Sleep (200 * 1000);\r |
c4671a67 | 1225 | }\r |
d18d8a1d | 1226 | \r |
c4671a67 | 1227 | return 0;\r |
1228 | }\r | |
1229 | \r | |
1230 | \r | |
1231 | EFI_STATUS\r | |
1232 | InitializeMpSystemData (\r | |
1233 | IN UINTN NumberOfProcessors\r | |
1234 | )\r | |
1235 | {\r | |
1236 | EFI_STATUS Status;\r | |
1237 | UINTN Index;\r | |
1238 | \r | |
d18d8a1d | 1239 | \r |
c4671a67 | 1240 | //\r |
1241 | // Clear the data structure area first.\r | |
1242 | //\r | |
1243 | ZeroMem (&gMPSystem, sizeof (MP_SYSTEM_DATA));\r | |
1244 | \r | |
1245 | //\r | |
1246 | // First BSP fills and inits all known values, including it's own records.\r | |
1247 | //\r | |
1248 | gMPSystem.NumberOfProcessors = NumberOfProcessors;\r | |
1249 | gMPSystem.NumberOfEnabledProcessors = NumberOfProcessors;\r | |
d18d8a1d | 1250 | \r |
c4671a67 | 1251 | gMPSystem.ProcessorData = AllocateZeroPool (gMPSystem.NumberOfProcessors * sizeof (PROCESSOR_DATA_BLOCK));\r |
1252 | ASSERT (gMPSystem.ProcessorData != NULL);\r | |
1253 | \r | |
1254 | FillInProcessorInformation (TRUE, 0);\r | |
d18d8a1d | 1255 | \r |
c4671a67 | 1256 | Status = gBS->CreateEvent (\r |
1257 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1258 | TPL_CALLBACK,\r | |
1259 | CpuCheckAllAPsStatus,\r | |
1260 | NULL,\r | |
1261 | &gMPSystem.CheckAllAPsEvent\r | |
1262 | );\r | |
1263 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1264 | \r |
c4671a67 | 1265 | \r |
1266 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r | |
1267 | if ((gMPSystem.ProcessorData[Index].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
1268 | // Skip BSP\r | |
1269 | continue;\r | |
1270 | }\r | |
d18d8a1d | 1271 | \r |
c4671a67 | 1272 | FillInProcessorInformation (FALSE, Index);\r |
d18d8a1d | 1273 | \r |
10d1be3e | 1274 | Status = gThread->CreateThread (\r |
d18d8a1d | 1275 | (VOID *)&gMPSystem.ProcessorData[Index].Info.ProcessorId,\r |
c4671a67 | 1276 | NULL,\r |
1277 | CpuDriverApIdolLoop,\r | |
1278 | (VOID *)Index\r | |
1279 | );\r | |
d18d8a1d | 1280 | \r |
1281 | \r | |
c4671a67 | 1282 | Status = gBS->CreateEvent (\r |
1283 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1284 | TPL_CALLBACK,\r | |
1285 | CpuCheckThisAPStatus,\r | |
1286 | (VOID *) &gMPSystem.ProcessorData[Index],\r | |
1287 | &gMPSystem.ProcessorData[Index].CheckThisAPEvent\r | |
1288 | );\r | |
1289 | }\r | |
1290 | \r | |
1291 | return EFI_SUCCESS;\r | |
1292 | }\r | |
1293 | \r | |
1294 | \r | |
1295 | \r | |
1296 | /**\r | |
1297 | Invoke a notification event\r | |
1298 | \r | |
1299 | @param Event Event whose notification function is being invoked.\r | |
1300 | @param Context The pointer to the notification function's context,\r | |
1301 | which is implementation-dependent.\r | |
1302 | \r | |
1303 | **/\r | |
1304 | VOID\r | |
1305 | EFIAPI\r | |
1306 | CpuReadToBootFunction (\r | |
1307 | IN EFI_EVENT Event,\r | |
1308 | IN VOID *Context\r | |
1309 | )\r | |
1310 | {\r | |
1311 | gReadToBoot = TRUE;\r | |
1312 | }\r | |
1313 | \r | |
1314 | \r | |
1315 | \r | |
1316 | EFI_STATUS\r | |
1317 | CpuMpServicesInit (\r | |
1318 | VOID\r | |
1319 | )\r | |
1320 | {\r | |
1321 | EFI_STATUS Status;\r | |
1322 | EFI_HANDLE Handle;\r | |
1323 | EMU_IO_THUNK_PROTOCOL *IoThunk;\r | |
1324 | UINTN MaxCpus;\r | |
c4671a67 | 1325 | \r |
1326 | MaxCpus = 1; // BSP\r | |
d18d8a1d | 1327 | \r |
10d1be3e | 1328 | IoThunk = GetIoThunkInstance (&gEmuThreadThunkProtocolGuid, 0);\r |
c4671a67 | 1329 | if (IoThunk != NULL) {\r |
1330 | Status = IoThunk->Open (IoThunk);\r | |
1331 | if (!EFI_ERROR (Status)) {\r | |
1332 | if (IoThunk->ConfigString != NULL) {\r | |
1333 | MaxCpus += StrDecimalToUintn (IoThunk->ConfigString);\r | |
10d1be3e | 1334 | gThread = IoThunk->Interface;\r |
c4671a67 | 1335 | }\r |
1336 | }\r | |
1337 | }\r | |
1338 | \r | |
1339 | if (MaxCpus == 1) {\r | |
1340 | // We are not MP so nothing to do\r | |
1341 | return EFI_SUCCESS;\r | |
1342 | }\r | |
1343 | \r | |
1344 | gPollInterval = PcdGet64 (PcdEmuMpServicesPollingInterval);\r | |
1345 | \r | |
1346 | Status = InitializeMpSystemData (MaxCpus);\r | |
1347 | if (EFI_ERROR (Status)) {\r | |
1348 | return Status;\r | |
1349 | }\r | |
1350 | \r | |
1351 | Status = EfiCreateEventReadyToBootEx (TPL_CALLBACK, CpuReadToBootFunction, NULL, &gReadToBootEvent);\r | |
1352 | ASSERT_EFI_ERROR (Status);\r | |
1353 | \r | |
1354 | //\r | |
1355 | // Now install the MP services protocol.\r | |
1356 | //\r | |
1357 | Handle = NULL;\r | |
1358 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1359 | &Handle,\r | |
1360 | &gEfiMpServiceProtocolGuid, &mMpSercicesTemplate,\r | |
1361 | NULL\r | |
1362 | );\r | |
1363 | return Status;\r | |
1364 | }\r | |
1365 | \r | |
1366 | \r |