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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 | |
e148512e | 31 | Copyright (c) 2006 - 2012, 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 |
d070eef8 | 62 | Status = CpuMpServicesWhoAmI (&mMpServicesTemplate, &ProcessorNumber);\r |
c4671a67 | 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 Number;\r |
378 | UINTN NextNumber;\r | |
379 | PROCESSOR_STATE APInitialState;\r | |
380 | PROCESSOR_STATE ProcessorState;\r | |
381 | INTN Timeout;\r | |
382 | \r | |
383 | \r | |
384 | if (!IsBSP ()) {\r | |
385 | return EFI_DEVICE_ERROR;\r | |
386 | }\r | |
d18d8a1d | 387 | \r |
c4671a67 | 388 | if (gMPSystem.NumberOfProcessors == 1) {\r |
389 | return EFI_NOT_STARTED;\r | |
390 | }\r | |
391 | \r | |
392 | if (Procedure == NULL) {\r | |
393 | return EFI_INVALID_PARAMETER;\r | |
394 | }\r | |
d18d8a1d | 395 | \r |
c4671a67 | 396 | if ((WaitEvent != NULL) && gReadToBoot) {\r |
397 | return EFI_UNSUPPORTED;\r | |
398 | }\r | |
d18d8a1d | 399 | \r |
400 | \r | |
c4671a67 | 401 | if (FailedCpuList != NULL) {\r |
8b6d0c05 | 402 | gMPSystem.FailedList = AllocatePool ((gMPSystem.NumberOfProcessors + 1) * sizeof (UINTN));\r |
403 | if (gMPSystem.FailedList == NULL) {\r | |
404 | return EFI_OUT_OF_RESOURCES;\r | |
405 | }\r | |
406 | SetMemN (gMPSystem.FailedList, (gMPSystem.NumberOfProcessors + 1) * sizeof (UINTN), END_OF_CPU_LIST);\r | |
407 | gMPSystem.FailedListIndex = 0;\r | |
408 | *FailedCpuList = gMPSystem.FailedList;\r | |
c4671a67 | 409 | }\r |
410 | \r | |
411 | Timeout = TimeoutInMicroseconds;\r | |
412 | \r | |
8b6d0c05 | 413 | ProcessorData = NULL;\r |
c4671a67 | 414 | \r |
8b6d0c05 | 415 | gMPSystem.FinishCount = 0;\r |
416 | gMPSystem.StartCount = 0;\r | |
417 | gMPSystem.SingleThread = SingleThread;\r | |
418 | APInitialState = CPU_STATE_READY;\r | |
c4671a67 | 419 | \r |
420 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
421 | ProcessorData = &gMPSystem.ProcessorData[Number];\r | |
422 | \r | |
423 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
424 | // Skip BSP\r | |
425 | continue;\r | |
426 | }\r | |
427 | \r | |
8b6d0c05 | 428 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
429 | // Skip Disabled processors\r | |
430 | gMPSystem.FailedList[gMPSystem.FailedListIndex++] = Number;\r | |
431 | continue;\r | |
432 | }\r | |
433 | \r | |
c4671a67 | 434 | //\r |
435 | // Get APs prepared, and put failing APs into FailedCpuList\r | |
436 | // if "SingleThread", only 1 AP will put to ready state, other AP will be put to ready\r | |
437 | // state 1 by 1, until the previous 1 finished its task\r | |
438 | // if not "SingleThread", all APs are put to ready state from the beginning\r | |
439 | //\r | |
a31a3b4a | 440 | gThread->MutexLock(ProcessorData->StateLock);\r |
c4671a67 | 441 | if (ProcessorData->State == CPU_STATE_IDLE) {\r |
c4671a67 | 442 | ProcessorData->State = APInitialState;\r |
f9032449 | 443 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 444 | \r |
a31a3b4a | 445 | gMPSystem.StartCount++;\r |
c4671a67 | 446 | if (SingleThread) {\r |
447 | APInitialState = CPU_STATE_BLOCKED;\r | |
448 | }\r | |
8b6d0c05 | 449 | } else {\r |
a31a3b4a | 450 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
8b6d0c05 | 451 | return EFI_NOT_READY;\r |
c4671a67 | 452 | }\r |
453 | }\r | |
d18d8a1d | 454 | \r |
8b6d0c05 | 455 | if (WaitEvent != NULL) {\r |
456 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
d18d8a1d | 457 | ProcessorData = &gMPSystem.ProcessorData[Number];\r |
8b6d0c05 | 458 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r |
459 | // Skip BSP\r | |
460 | continue;\r | |
461 | }\r | |
462 | \r | |
463 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r | |
464 | // Skip Disabled processors\r | |
465 | continue;\r | |
466 | }\r | |
d18d8a1d | 467 | \r |
5152f642 CF |
468 | gThread->MutexLock (ProcessorData->StateLock);\r |
469 | ProcessorState = ProcessorData->State;\r | |
470 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
471 | \r | |
472 | if (ProcessorState == CPU_STATE_READY) {\r | |
473 | SetApProcedure (ProcessorData, Procedure, ProcedureArgument);\r | |
474 | }\r | |
c4671a67 | 475 | }\r |
8b6d0c05 | 476 | \r |
477 | //\r | |
478 | // Save data into private data structure, and create timer to poll AP state before exiting\r | |
479 | //\r | |
480 | gMPSystem.Procedure = Procedure;\r | |
481 | gMPSystem.ProcedureArgument = ProcedureArgument;\r | |
482 | gMPSystem.WaitEvent = WaitEvent;\r | |
483 | gMPSystem.Timeout = TimeoutInMicroseconds;\r | |
484 | gMPSystem.TimeoutActive = (BOOLEAN)(TimeoutInMicroseconds != 0);\r | |
485 | Status = gBS->SetTimer (\r | |
486 | gMPSystem.CheckAllAPsEvent,\r | |
487 | TimerPeriodic,\r | |
488 | gPollInterval\r | |
489 | );\r | |
490 | return Status;\r | |
491 | \r | |
c4671a67 | 492 | }\r |
493 | \r | |
494 | while (TRUE) {\r | |
495 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
d18d8a1d | 496 | ProcessorData = &gMPSystem.ProcessorData[Number];\r |
c4671a67 | 497 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r |
498 | // Skip BSP\r | |
499 | continue;\r | |
500 | }\r | |
501 | \r | |
8b6d0c05 | 502 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
503 | // Skip Disabled processors\r | |
504 | continue;\r | |
505 | }\r | |
506 | \r | |
10d1be3e | 507 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 508 | ProcessorState = ProcessorData->State;\r |
10d1be3e | 509 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 510 | \r |
511 | switch (ProcessorState) {\r | |
512 | case CPU_STATE_READY:\r | |
513 | SetApProcedure (ProcessorData, Procedure, ProcedureArgument);\r | |
514 | break;\r | |
515 | \r | |
516 | case CPU_STATE_FINISHED:\r | |
517 | gMPSystem.FinishCount++;\r | |
518 | if (SingleThread) {\r | |
519 | Status = GetNextBlockedNumber (&NextNumber);\r | |
520 | if (!EFI_ERROR (Status)) {\r | |
f9032449 | 521 | gThread->MutexLock (gMPSystem.ProcessorData[NextNumber].StateLock);\r |
c4671a67 | 522 | gMPSystem.ProcessorData[NextNumber].State = CPU_STATE_READY;\r |
f9032449 | 523 | gThread->MutexUnlock (gMPSystem.ProcessorData[NextNumber].StateLock);\r |
c4671a67 | 524 | }\r |
525 | }\r | |
526 | \r | |
70a2c7b1 | 527 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 528 | ProcessorData->State = CPU_STATE_IDLE;\r |
70a2c7b1 CF |
529 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
530 | \r | |
c4671a67 | 531 | break;\r |
532 | \r | |
533 | default:\r | |
534 | break;\r | |
535 | }\r | |
536 | }\r | |
537 | \r | |
538 | if (gMPSystem.FinishCount == gMPSystem.StartCount) {\r | |
8b6d0c05 | 539 | Status = EFI_SUCCESS;\r |
540 | goto Done;\r | |
c4671a67 | 541 | }\r |
542 | \r | |
543 | if ((TimeoutInMicroseconds != 0) && (Timeout < 0)) {\r | |
8b6d0c05 | 544 | Status = EFI_TIMEOUT;\r |
545 | goto Done;\r | |
c4671a67 | 546 | }\r |
547 | \r | |
548 | gBS->Stall (gPollInterval);\r | |
549 | Timeout -= gPollInterval;\r | |
550 | }\r | |
551 | \r | |
8b6d0c05 | 552 | Done:\r |
553 | if (FailedCpuList != NULL) {\r | |
554 | if (gMPSystem.FailedListIndex == 0) {\r | |
555 | FreePool (*FailedCpuList);\r | |
556 | *FailedCpuList = NULL;\r | |
557 | }\r | |
558 | }\r | |
559 | \r | |
c4671a67 | 560 | return EFI_SUCCESS;\r |
561 | }\r | |
562 | \r | |
563 | \r | |
564 | /**\r | |
d18d8a1d | 565 | This service lets the caller get one enabled AP to execute a caller-provided\r |
566 | function. The caller can request the BSP to either wait for the completion\r | |
567 | of the AP or just proceed with the next task by using the EFI event mechanism.\r | |
568 | See EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() for more details on non-blocking\r | |
c4671a67 | 569 | execution support. This service may only be called from the BSP.\r |
570 | \r | |
d18d8a1d | 571 | This function is used to dispatch one enabled AP to the function specified by\r |
572 | Procedure passing in the argument specified by ProcedureArgument. If WaitEvent\r | |
573 | is NULL, execution is in blocking mode. The BSP waits until the AP finishes or\r | |
574 | TimeoutInMicroSecondss expires. Otherwise, execution is in non-blocking mode.\r | |
575 | BSP proceeds to the next task without waiting for the AP. If a non-blocking mode\r | |
576 | is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled,\r | |
c4671a67 | 577 | then EFI_UNSUPPORTED must be returned.\r |
d18d8a1d | 578 | \r |
579 | If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r | |
580 | from Procedure, then execution of Procedure by the AP is terminated. The AP is\r | |
581 | available for subsequent calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() and\r | |
c4671a67 | 582 | EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
583 | \r | |
584 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
585 | instance.\r | |
d18d8a1d | 586 | @param[in] Procedure A pointer to the function to be run on\r |
c4671a67 | 587 | enabled APs of the system. See type\r |
588 | EFI_AP_PROCEDURE.\r | |
d18d8a1d | 589 | @param[in] ProcessorNumber The handle number of the AP. The range is\r |
c4671a67 | 590 | from 0 to the total number of logical\r |
d18d8a1d | 591 | processors minus 1. The total number of\r |
c4671a67 | 592 | logical processors can be retrieved by\r |
593 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
594 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
d18d8a1d | 595 | service. If it is NULL, then execute in\r |
596 | blocking mode. BSP waits until all APs finish\r | |
597 | or TimeoutInMicroseconds expires. If it's\r | |
598 | not NULL, then execute in non-blocking mode.\r | |
599 | BSP requests the function specified by\r | |
600 | Procedure to be started on all the enabled\r | |
601 | APs, and go on executing immediately. If\r | |
c4671a67 | 602 | all return from Procedure or TimeoutInMicroseconds\r |
d18d8a1d | 603 | expires, this event is signaled. The BSP\r |
604 | can use the CheckEvent() or WaitForEvent()\r | |
605 | services to check the state of event. Type\r | |
606 | EFI_EVENT is defined in CreateEvent() in\r | |
607 | the Unified Extensible Firmware Interface\r | |
608 | Specification.\r | |
609 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
610 | APs to return from Procedure, either for\r | |
611 | blocking or non-blocking mode. Zero means\r | |
612 | infinity. If the timeout expires before\r | |
c4671a67 | 613 | all APs return from Procedure, then Procedure\r |
d18d8a1d | 614 | on the failed APs is terminated. All enabled\r |
615 | APs are available for next function assigned\r | |
616 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
c4671a67 | 617 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
d18d8a1d | 618 | If the timeout expires in blocking mode,\r |
619 | BSP returns EFI_TIMEOUT. If the timeout\r | |
620 | expires in non-blocking mode, WaitEvent\r | |
c4671a67 | 621 | is signaled with SignalEvent().\r |
d18d8a1d | 622 | @param[in] ProcedureArgument The parameter passed into Procedure for\r |
c4671a67 | 623 | all APs.\r |
d18d8a1d | 624 | @param[out] Finished If NULL, this parameter is ignored. In\r |
c4671a67 | 625 | blocking mode, this parameter is ignored.\r |
d18d8a1d | 626 | In non-blocking mode, if AP returns from\r |
c4671a67 | 627 | Procedure before the timeout expires, its\r |
d18d8a1d | 628 | content is set to TRUE. Otherwise, the\r |
c4671a67 | 629 | value is set to FALSE. The caller can\r |
d18d8a1d | 630 | determine if the AP returned from Procedure\r |
c4671a67 | 631 | by evaluating this value.\r |
632 | \r | |
d18d8a1d | 633 | @retval EFI_SUCCESS In blocking mode, specified AP finished before\r |
c4671a67 | 634 | the timeout expires.\r |
d18d8a1d | 635 | @retval EFI_SUCCESS In non-blocking mode, the function has been\r |
c4671a67 | 636 | dispatched to specified AP.\r |
d18d8a1d | 637 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r |
638 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
c4671a67 | 639 | signaled.\r |
640 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
d18d8a1d | 641 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r |
c4671a67 | 642 | the specified AP has finished.\r |
643 | @retval EFI_NOT_READY The specified AP is busy.\r | |
d18d8a1d | 644 | @retval EFI_NOT_FOUND The processor with the handle specified by\r |
c4671a67 | 645 | ProcessorNumber does not exist.\r |
646 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r | |
647 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
648 | \r | |
649 | **/\r | |
650 | EFI_STATUS\r | |
651 | EFIAPI\r | |
652 | CpuMpServicesStartupThisAP (\r | |
653 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
654 | IN EFI_AP_PROCEDURE Procedure,\r | |
655 | IN UINTN ProcessorNumber,\r | |
656 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
657 | IN UINTN TimeoutInMicroseconds,\r | |
658 | IN VOID *ProcedureArgument OPTIONAL,\r | |
659 | OUT BOOLEAN *Finished OPTIONAL\r | |
660 | )\r | |
661 | {\r | |
c4671a67 | 662 | INTN Timeout;\r |
d18d8a1d | 663 | \r |
c4671a67 | 664 | if (!IsBSP ()) {\r |
665 | return EFI_DEVICE_ERROR;\r | |
666 | }\r | |
d18d8a1d | 667 | \r |
c4671a67 | 668 | if (Procedure == NULL) {\r |
669 | return EFI_INVALID_PARAMETER;\r | |
670 | }\r | |
d18d8a1d | 671 | \r |
c4671a67 | 672 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
673 | return EFI_NOT_FOUND;\r | |
674 | }\r | |
d18d8a1d | 675 | \r |
c4671a67 | 676 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r |
677 | return EFI_INVALID_PARAMETER;\r | |
678 | }\r | |
679 | \r | |
a31a3b4a | 680 | gThread->MutexLock(gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 681 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
a31a3b4a | 682 | gThread->MutexUnlock(gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 683 | return EFI_NOT_READY;\r |
684 | }\r | |
a31a3b4a | 685 | gThread->MutexUnlock(gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 686 | \r |
687 | if ((WaitEvent != NULL) && gReadToBoot) {\r | |
688 | return EFI_UNSUPPORTED;\r | |
689 | }\r | |
690 | \r | |
691 | Timeout = TimeoutInMicroseconds;\r | |
692 | \r | |
693 | gMPSystem.StartCount = 1;\r | |
694 | gMPSystem.FinishCount = 0;\r | |
695 | \r | |
696 | SetApProcedure (&gMPSystem.ProcessorData[ProcessorNumber], Procedure, ProcedureArgument);\r | |
697 | \r | |
8b6d0c05 | 698 | if (WaitEvent != NULL) {\r |
d75d0409 | 699 | // Non Blocking\r |
700 | gMPSystem.WaitEvent = WaitEvent;\r | |
701 | gBS->SetTimer (\r | |
702 | gMPSystem.ProcessorData[ProcessorNumber].CheckThisAPEvent,\r | |
703 | TimerPeriodic,\r | |
704 | gPollInterval\r | |
705 | );\r | |
8b6d0c05 | 706 | return EFI_SUCCESS;\r |
707 | }\r | |
708 | \r | |
709 | // Blocking\r | |
c4671a67 | 710 | while (TRUE) {\r |
f9032449 | 711 | gThread->MutexLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 712 | if (gMPSystem.ProcessorData[ProcessorNumber].State == CPU_STATE_FINISHED) {\r |
713 | gMPSystem.ProcessorData[ProcessorNumber].State = CPU_STATE_IDLE;\r | |
f9032449 | 714 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 715 | break;\r |
716 | }\r | |
717 | \r | |
f9032449 | 718 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 719 | \r |
720 | if ((TimeoutInMicroseconds != 0) && (Timeout < 0)) {\r | |
c4671a67 | 721 | return EFI_TIMEOUT;\r |
722 | }\r | |
723 | \r | |
724 | gBS->Stall (gPollInterval);\r | |
725 | Timeout -= gPollInterval;\r | |
726 | }\r | |
727 | \r | |
728 | return EFI_SUCCESS;\r | |
729 | \r | |
730 | }\r | |
731 | \r | |
732 | \r | |
733 | /**\r | |
d18d8a1d | 734 | This service switches the requested AP to be the BSP from that point onward.\r |
735 | This service changes the BSP for all purposes. This call can only be performed\r | |
c4671a67 | 736 | by the current BSP.\r |
737 | \r | |
d18d8a1d | 738 | This service switches the requested AP to be the BSP from that point onward.\r |
739 | This service changes the BSP for all purposes. The new BSP can take over the\r | |
740 | execution of the old BSP and continue seamlessly from where the old one left\r | |
741 | off. This service may not be supported after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
c4671a67 | 742 | is signaled.\r |
743 | \r | |
d18d8a1d | 744 | If the BSP cannot be switched prior to the return from this service, then\r |
c4671a67 | 745 | EFI_UNSUPPORTED must be returned.\r |
746 | \r | |
747 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 748 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
749 | BSP. The range is from 0 to the total number of\r | |
750 | logical processors minus 1. The total number of\r | |
c4671a67 | 751 | logical processors can be retrieved by\r |
752 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
d18d8a1d | 753 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an\r |
c4671a67 | 754 | enabled AP. Otherwise, it will be disabled.\r |
755 | \r | |
756 | @retval EFI_SUCCESS BSP successfully switched.\r | |
d18d8a1d | 757 | @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to\r |
c4671a67 | 758 | this service returning.\r |
759 | @retval EFI_UNSUPPORTED Switching the BSP is not supported.\r | |
760 | @retval EFI_SUCCESS The calling processor is an AP.\r | |
761 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
762 | ProcessorNumber does not exist.\r | |
d18d8a1d | 763 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or\r |
c4671a67 | 764 | a disabled AP.\r |
765 | @retval EFI_NOT_READY The specified AP is busy.\r | |
766 | \r | |
767 | **/\r | |
768 | EFI_STATUS\r | |
769 | EFIAPI\r | |
770 | CpuMpServicesSwitchBSP (\r | |
771 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
772 | IN UINTN ProcessorNumber,\r | |
773 | IN BOOLEAN EnableOldBSP\r | |
774 | )\r | |
775 | {\r | |
776 | UINTN Index;\r | |
d18d8a1d | 777 | \r |
c4671a67 | 778 | if (!IsBSP ()) {\r |
779 | return EFI_DEVICE_ERROR;\r | |
780 | }\r | |
d18d8a1d | 781 | \r |
c4671a67 | 782 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
783 | return EFI_NOT_FOUND;\r | |
784 | }\r | |
d18d8a1d | 785 | \r |
c4671a67 | 786 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
787 | return EFI_INVALID_PARAMETER;\r | |
788 | }\r | |
789 | \r | |
790 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
791 | return EFI_INVALID_PARAMETER;\r | |
792 | }\r | |
d18d8a1d | 793 | \r |
c4671a67 | 794 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r |
795 | if ((gMPSystem.ProcessorData[Index].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
796 | break;\r | |
797 | }\r | |
798 | }\r | |
799 | ASSERT (Index != gMPSystem.NumberOfProcessors);\r | |
d18d8a1d | 800 | \r |
a31a3b4a | 801 | gThread->MutexLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 802 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
a31a3b4a | 803 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 804 | return EFI_NOT_READY;\r |
805 | }\r | |
a31a3b4a | 806 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
d18d8a1d | 807 | \r |
c4671a67 | 808 | // Skip for now as we need switch a bunch of stack stuff around and it's complex\r |
809 | // May not be worth it?\r | |
810 | return EFI_NOT_READY;\r | |
811 | }\r | |
812 | \r | |
813 | \r | |
814 | /**\r | |
d18d8a1d | 815 | This service lets the caller enable or disable an AP from this point onward.\r |
c4671a67 | 816 | This service may only be called from the BSP.\r |
817 | \r | |
d18d8a1d | 818 | This service allows the caller enable or disable an AP from this point onward.\r |
819 | The caller can optionally specify the health status of the AP by Health. If\r | |
820 | an AP is being disabled, then the state of the disabled AP is implementation\r | |
821 | dependent. If an AP is enabled, then the implementation must guarantee that a\r | |
822 | complete initialization sequence is performed on the AP, so the AP is in a state\r | |
823 | that is compatible with an MP operating system. This service may not be supported\r | |
c4671a67 | 824 | after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled.\r |
825 | \r | |
d18d8a1d | 826 | If the enable or disable AP operation cannot be completed prior to the return\r |
c4671a67 | 827 | from this service, then EFI_UNSUPPORTED must be returned.\r |
828 | \r | |
829 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 830 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
831 | BSP. The range is from 0 to the total number of\r | |
832 | logical processors minus 1. The total number of\r | |
c4671a67 | 833 | logical processors can be retrieved by\r |
834 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
d18d8a1d | 835 | @param[in] EnableAP Specifies the new state for the processor for\r |
c4671a67 | 836 | enabled, FALSE for disabled.\r |
d18d8a1d | 837 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies\r |
838 | the new health status of the AP. This flag\r | |
839 | corresponds to StatusFlag defined in\r | |
840 | EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only\r | |
841 | the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r | |
842 | bits are ignored. If it is NULL, this parameter\r | |
c4671a67 | 843 | is ignored.\r |
844 | \r | |
845 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r | |
d18d8a1d | 846 | @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed\r |
c4671a67 | 847 | prior to this service returning.\r |
848 | @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r | |
849 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
850 | @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r | |
851 | does not exist.\r | |
852 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r | |
853 | \r | |
854 | **/\r | |
855 | EFI_STATUS\r | |
856 | EFIAPI\r | |
857 | CpuMpServicesEnableDisableAP (\r | |
858 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
859 | IN UINTN ProcessorNumber,\r | |
860 | IN BOOLEAN EnableAP,\r | |
861 | IN UINT32 *HealthFlag OPTIONAL\r | |
862 | )\r | |
863 | {\r | |
864 | if (!IsBSP ()) {\r | |
865 | return EFI_DEVICE_ERROR;\r | |
866 | }\r | |
d18d8a1d | 867 | \r |
c4671a67 | 868 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
869 | return EFI_NOT_FOUND;\r | |
870 | }\r | |
d18d8a1d | 871 | \r |
c4671a67 | 872 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r |
873 | return EFI_INVALID_PARAMETER;\r | |
d18d8a1d | 874 | }\r |
c4671a67 | 875 | \r |
a31a3b4a | 876 | gThread->MutexLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 877 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
a31a3b4a | 878 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 879 | return EFI_UNSUPPORTED;\r |
880 | }\r | |
a31a3b4a | 881 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 882 | \r |
c4671a67 | 883 | if (EnableAP) {\r |
884 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0 ) {\r | |
885 | gMPSystem.NumberOfEnabledProcessors++;\r | |
886 | }\r | |
887 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= PROCESSOR_ENABLED_BIT;\r | |
888 | } else {\r | |
889 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == PROCESSOR_ENABLED_BIT ) {\r | |
890 | gMPSystem.NumberOfEnabledProcessors--;\r | |
891 | }\r | |
892 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag &= ~PROCESSOR_ENABLED_BIT;\r | |
893 | }\r | |
d18d8a1d | 894 | \r |
c4671a67 | 895 | if (HealthFlag != NULL) {\r |
896 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag &= ~PROCESSOR_HEALTH_STATUS_BIT;\r | |
897 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT);\r | |
898 | }\r | |
d18d8a1d | 899 | \r |
c4671a67 | 900 | return EFI_SUCCESS;\r |
901 | }\r | |
902 | \r | |
903 | \r | |
904 | /**\r | |
d18d8a1d | 905 | This return the handle number for the calling processor. This service may be\r |
c4671a67 | 906 | called from the BSP and APs.\r |
907 | \r | |
d18d8a1d | 908 | This service returns the processor handle number for the calling processor.\r |
909 | The returned value is in the range from 0 to the total number of logical\r | |
910 | processors minus 1. The total number of logical processors can be retrieved\r | |
911 | with EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors(). This service may be\r | |
912 | called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r | |
913 | is returned. Otherwise, the current processors handle number is returned in\r | |
c4671a67 | 914 | ProcessorNumber, and EFI_SUCCESS is returned.\r |
915 | \r | |
916 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 917 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
918 | BSP. The range is from 0 to the total number of\r | |
919 | logical processors minus 1. The total number of\r | |
c4671a67 | 920 | logical processors can be retrieved by\r |
921 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
922 | \r | |
d18d8a1d | 923 | @retval EFI_SUCCESS The current processor handle number was returned\r |
c4671a67 | 924 | in ProcessorNumber.\r |
925 | @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r | |
926 | \r | |
927 | **/\r | |
928 | EFI_STATUS\r | |
929 | EFIAPI\r | |
930 | CpuMpServicesWhoAmI (\r | |
931 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
932 | OUT UINTN *ProcessorNumber\r | |
933 | )\r | |
934 | {\r | |
935 | UINTN Index;\r | |
936 | UINT64 ProcessorId;\r | |
d18d8a1d | 937 | \r |
c4671a67 | 938 | if (ProcessorNumber == NULL) {\r |
939 | return EFI_INVALID_PARAMETER;\r | |
940 | }\r | |
d18d8a1d | 941 | \r |
10d1be3e | 942 | ProcessorId = gThread->Self ();\r |
c4671a67 | 943 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r |
944 | if (gMPSystem.ProcessorData[Index].Info.ProcessorId == ProcessorId) {\r | |
945 | break;\r | |
946 | }\r | |
947 | }\r | |
948 | \r | |
949 | *ProcessorNumber = Index;\r | |
950 | return EFI_SUCCESS;\r | |
951 | }\r | |
952 | \r | |
953 | \r | |
954 | \r | |
d070eef8 | 955 | EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {\r |
c4671a67 | 956 | CpuMpServicesGetNumberOfProcessors,\r |
957 | CpuMpServicesGetProcessorInfo,\r | |
958 | CpuMpServicesStartupAllAps,\r | |
959 | CpuMpServicesStartupThisAP,\r | |
960 | CpuMpServicesSwitchBSP,\r | |
961 | CpuMpServicesEnableDisableAP,\r | |
962 | CpuMpServicesWhoAmI\r | |
963 | };\r | |
964 | \r | |
965 | \r | |
966 | \r | |
967 | /*++\r | |
968 | If timeout occurs in StartupAllAps(), a timer is set, which invokes this\r | |
969 | procedure periodically to check whether all APs have finished.\r | |
970 | \r | |
971 | \r | |
972 | --*/\r | |
973 | VOID\r | |
974 | EFIAPI\r | |
975 | CpuCheckAllAPsStatus (\r | |
976 | IN EFI_EVENT Event,\r | |
977 | IN VOID *Context\r | |
978 | )\r | |
979 | {\r | |
980 | UINTN ProcessorNumber;\r | |
981 | UINTN NextNumber;\r | |
982 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
983 | PROCESSOR_DATA_BLOCK *NextData;\r | |
984 | EFI_STATUS Status;\r | |
985 | PROCESSOR_STATE ProcessorState;\r | |
8b6d0c05 | 986 | UINTN Cpu;\r |
987 | BOOLEAN Found;\r | |
c4671a67 | 988 | \r |
8b6d0c05 | 989 | if (gMPSystem.TimeoutActive) {\r |
990 | gMPSystem.Timeout -= gPollInterval;\r | |
991 | }\r | |
d18d8a1d | 992 | \r |
c4671a67 | 993 | for (ProcessorNumber = 0; ProcessorNumber < gMPSystem.NumberOfProcessors; ProcessorNumber++) {\r |
8ab6d73c CF |
994 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r |
995 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
c4671a67 | 996 | // Skip BSP\r |
997 | continue;\r | |
998 | }\r | |
999 | \r | |
8b6d0c05 | 1000 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
1001 | // Skip Disabled processors\r | |
1002 | continue;\r | |
1003 | }\r | |
1004 | \r | |
c4671a67 | 1005 | // This is an Interrupt Service routine.\r |
1006 | // This can grab a lock that is held in a non-interrupt\r | |
1007 | // context. Meaning deadlock. Which is a bad thing.\r | |
1008 | // So, try lock it. If we can get it, cool, do our thing.\r | |
1009 | // otherwise, just dump out & try again on the next iteration.\r | |
1a160a74 | 1010 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
c4671a67 | 1011 | if (EFI_ERROR(Status)) {\r |
1012 | return;\r | |
1013 | }\r | |
1a160a74 CF |
1014 | ProcessorState = ProcessorData->State;\r |
1015 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
c4671a67 | 1016 | \r |
1017 | switch (ProcessorState) {\r | |
c4671a67 | 1018 | case CPU_STATE_FINISHED:\r |
1019 | if (gMPSystem.SingleThread) {\r | |
1020 | Status = GetNextBlockedNumber (&NextNumber);\r | |
1021 | if (!EFI_ERROR (Status)) {\r | |
1022 | NextData = &gMPSystem.ProcessorData[NextNumber];\r | |
1023 | \r | |
f9032449 | 1024 | gThread->MutexLock (NextData->StateLock);\r |
c4671a67 | 1025 | NextData->State = CPU_STATE_READY;\r |
f9032449 | 1026 | gThread->MutexUnlock (NextData->StateLock);\r |
c4671a67 | 1027 | \r |
1028 | SetApProcedure (NextData, gMPSystem.Procedure, gMPSystem.ProcedureArgument);\r | |
1029 | }\r | |
1030 | }\r | |
1031 | \r | |
1a160a74 CF |
1032 | gThread->MutexLock (ProcessorData->StateLock);\r |
1033 | ProcessorData->State = CPU_STATE_IDLE;\r | |
1034 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
c4671a67 | 1035 | gMPSystem.FinishCount++;\r |
1036 | break;\r | |
1037 | \r | |
1038 | default:\r | |
1039 | break;\r | |
1040 | }\r | |
1041 | }\r | |
d18d8a1d | 1042 | \r |
8b6d0c05 | 1043 | if (gMPSystem.TimeoutActive && gMPSystem.Timeout < 0) {\r |
1044 | //\r | |
1045 | // Timeout\r | |
1046 | //\r | |
1047 | if (gMPSystem.FailedList != NULL) {\r | |
1048 | for (ProcessorNumber = 0; ProcessorNumber < gMPSystem.NumberOfProcessors; ProcessorNumber++) {\r | |
8ab6d73c CF |
1049 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r |
1050 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
8b6d0c05 | 1051 | // Skip BSP\r |
1052 | continue;\r | |
1053 | }\r | |
c4671a67 | 1054 | \r |
8b6d0c05 | 1055 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
1056 | // Skip Disabled processors\r | |
1057 | continue;\r | |
1058 | }\r | |
d18d8a1d | 1059 | \r |
1060 | // Mark the\r | |
1a160a74 | 1061 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
8b6d0c05 | 1062 | if (EFI_ERROR(Status)) {\r |
1063 | return;\r | |
1064 | }\r | |
1a160a74 CF |
1065 | ProcessorState = ProcessorData->State;\r |
1066 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
d18d8a1d | 1067 | \r |
8b6d0c05 | 1068 | if (ProcessorState != CPU_STATE_IDLE) {\r |
1069 | // If we are retrying make sure we don't double count\r | |
1070 | for (Cpu = 0, Found = FALSE; Cpu < gMPSystem.NumberOfProcessors; Cpu++) {\r | |
1071 | if (gMPSystem.FailedList[Cpu] == END_OF_CPU_LIST) {\r | |
1072 | break;\r | |
1073 | }\r | |
1074 | if (gMPSystem.FailedList[ProcessorNumber] == Cpu) {\r | |
1075 | Found = TRUE;\r | |
1076 | break;\r | |
1077 | }\r | |
1078 | }\r | |
1079 | if (!Found) {\r | |
1080 | gMPSystem.FailedList[gMPSystem.FailedListIndex++] = Cpu;\r | |
1081 | }\r | |
1082 | }\r | |
1083 | }\r | |
1084 | }\r | |
1085 | // Force terminal exit\r | |
1086 | gMPSystem.FinishCount = gMPSystem.StartCount;\r | |
1087 | }\r | |
1088 | \r | |
1089 | if (gMPSystem.FinishCount != gMPSystem.StartCount) {\r | |
1090 | return;\r | |
c4671a67 | 1091 | }\r |
d18d8a1d | 1092 | \r |
8b6d0c05 | 1093 | gBS->SetTimer (\r |
1094 | gMPSystem.CheckAllAPsEvent,\r | |
1095 | TimerCancel,\r | |
1096 | 0\r | |
1097 | );\r | |
1098 | \r | |
1099 | if (gMPSystem.FailedListIndex == 0) {\r | |
1100 | if (gMPSystem.FailedList != NULL) {\r | |
1101 | FreePool (gMPSystem.FailedList);\r | |
1102 | gMPSystem.FailedList = NULL;\r | |
1103 | }\r | |
1104 | }\r | |
1105 | \r | |
1106 | Status = gBS->SignalEvent (gMPSystem.WaitEvent);\r | |
c4671a67 | 1107 | \r |
1108 | return ;\r | |
1109 | }\r | |
1110 | \r | |
1111 | VOID\r | |
1112 | EFIAPI\r | |
1113 | CpuCheckThisAPStatus (\r | |
1114 | IN EFI_EVENT Event,\r | |
1115 | IN VOID *Context\r | |
1116 | )\r | |
1117 | {\r | |
1118 | EFI_STATUS Status;\r | |
1119 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
1120 | PROCESSOR_STATE ProcessorState;\r | |
1121 | \r | |
1122 | ProcessorData = (PROCESSOR_DATA_BLOCK *) Context;\r | |
1123 | \r | |
1124 | //\r | |
8b6d0c05 | 1125 | // This is an Interrupt Service routine.\r |
1126 | // that can grab a lock that is held in a non-interrupt\r | |
c4671a67 | 1127 | // context. Meaning deadlock. Which is a badddd thing.\r |
1128 | // So, try lock it. If we can get it, cool, do our thing.\r | |
1129 | // otherwise, just dump out & try again on the next iteration.\r | |
1130 | //\r | |
10d1be3e | 1131 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
c4671a67 | 1132 | if (EFI_ERROR(Status)) {\r |
1133 | return;\r | |
1134 | }\r | |
1135 | ProcessorState = ProcessorData->State;\r | |
10d1be3e | 1136 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1137 | \r |
1138 | if (ProcessorState == CPU_STATE_FINISHED) {\r | |
1139 | Status = gBS->SetTimer (ProcessorData->CheckThisAPEvent, TimerCancel, 0);\r | |
1140 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1141 | \r |
c4671a67 | 1142 | Status = gBS->SignalEvent (gMPSystem.WaitEvent);\r |
1143 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1144 | \r |
10d1be3e | 1145 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1146 | ProcessorData->State = CPU_STATE_IDLE;\r |
10d1be3e | 1147 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1148 | }\r |
1149 | \r | |
1150 | return ;\r | |
1151 | }\r | |
1152 | \r | |
1153 | \r | |
1154 | /*++\r | |
1155 | This function is called by all processors (both BSP and AP) once and collects MP related data\r | |
1156 | \r | |
1157 | MPSystemData - Pointer to the data structure containing MP related data\r | |
1158 | BSP - TRUE if the CPU is BSP\r | |
1159 | \r | |
1160 | EFI_SUCCESS - Data for the processor collected and filled in\r | |
1161 | \r | |
1162 | --*/\r | |
1163 | EFI_STATUS\r | |
1164 | FillInProcessorInformation (\r | |
1165 | IN BOOLEAN BSP,\r | |
1166 | IN UINTN ProcessorNumber\r | |
1167 | )\r | |
1168 | {\r | |
10d1be3e | 1169 | gMPSystem.ProcessorData[ProcessorNumber].Info.ProcessorId = gThread->Self ();\r |
c4671a67 | 1170 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag = PROCESSOR_ENABLED_BIT | PROCESSOR_HEALTH_STATUS_BIT;\r |
1171 | if (BSP) {\r | |
1172 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= PROCESSOR_AS_BSP_BIT;\r | |
1173 | }\r | |
d18d8a1d | 1174 | \r |
e148512e | 1175 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Package = (UINT32) ProcessorNumber;\r |
c4671a67 | 1176 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Core = 0;\r |
1177 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Thread = 0;\r | |
1178 | gMPSystem.ProcessorData[ProcessorNumber].State = BSP ? CPU_STATE_BUSY : CPU_STATE_IDLE;\r | |
d18d8a1d | 1179 | \r |
c4671a67 | 1180 | gMPSystem.ProcessorData[ProcessorNumber].Procedure = NULL;\r |
1181 | gMPSystem.ProcessorData[ProcessorNumber].Parameter = NULL;\r | |
10d1be3e | 1182 | gMPSystem.ProcessorData[ProcessorNumber].StateLock = gThread->MutexInit ();\r |
1183 | gMPSystem.ProcessorData[ProcessorNumber].ProcedureLock = gThread->MutexInit ();\r | |
c4671a67 | 1184 | \r |
1185 | return EFI_SUCCESS;\r | |
1186 | }\r | |
1187 | \r | |
1188 | VOID *\r | |
1189 | EFIAPI\r | |
1190 | CpuDriverApIdolLoop (\r | |
1191 | VOID *Context\r | |
1192 | )\r | |
1193 | {\r | |
1194 | EFI_AP_PROCEDURE Procedure;\r | |
1195 | VOID *Parameter;\r | |
1196 | UINTN ProcessorNumber;\r | |
1197 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
d18d8a1d | 1198 | \r |
c4671a67 | 1199 | ProcessorNumber = (UINTN)Context;\r |
1200 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r | |
d18d8a1d | 1201 | \r |
10d1be3e | 1202 | ProcessorData->Info.ProcessorId = gThread->Self ();\r |
d18d8a1d | 1203 | \r |
c4671a67 | 1204 | while (TRUE) {\r |
1205 | //\r | |
1206 | // Make a local copy on the stack to be extra safe\r | |
1207 | //\r | |
10d1be3e | 1208 | gThread->MutexLock (ProcessorData->ProcedureLock);\r |
c4671a67 | 1209 | Procedure = ProcessorData->Procedure;\r |
1210 | Parameter = ProcessorData->Parameter;\r | |
10d1be3e | 1211 | gThread->MutexUnlock (ProcessorData->ProcedureLock);\r |
d18d8a1d | 1212 | \r |
c4671a67 | 1213 | if (Procedure != NULL) {\r |
10d1be3e | 1214 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1215 | ProcessorData->State = CPU_STATE_BUSY;\r |
10d1be3e | 1216 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
d18d8a1d | 1217 | \r |
c4671a67 | 1218 | Procedure (Parameter);\r |
d18d8a1d | 1219 | \r |
10d1be3e | 1220 | gThread->MutexLock (ProcessorData->ProcedureLock);\r |
c4671a67 | 1221 | ProcessorData->Procedure = NULL;\r |
10d1be3e | 1222 | gThread->MutexUnlock (ProcessorData->ProcedureLock);\r |
d18d8a1d | 1223 | \r |
10d1be3e | 1224 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1225 | ProcessorData->State = CPU_STATE_FINISHED;\r |
d18d8a1d | 1226 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1227 | }\r |
d18d8a1d | 1228 | \r |
c4671a67 | 1229 | // Poll 5 times a seconds, 200ms\r |
1230 | // Don't want to burn too many system resources doing nothing.\r | |
1ef41207 | 1231 | gEmuThunk->Sleep (200 * 1000);\r |
c4671a67 | 1232 | }\r |
d18d8a1d | 1233 | \r |
c4671a67 | 1234 | return 0;\r |
1235 | }\r | |
1236 | \r | |
1237 | \r | |
1238 | EFI_STATUS\r | |
1239 | InitializeMpSystemData (\r | |
1240 | IN UINTN NumberOfProcessors\r | |
1241 | )\r | |
1242 | {\r | |
1243 | EFI_STATUS Status;\r | |
1244 | UINTN Index;\r | |
1245 | \r | |
d18d8a1d | 1246 | \r |
c4671a67 | 1247 | //\r |
1248 | // Clear the data structure area first.\r | |
1249 | //\r | |
1250 | ZeroMem (&gMPSystem, sizeof (MP_SYSTEM_DATA));\r | |
1251 | \r | |
1252 | //\r | |
1253 | // First BSP fills and inits all known values, including it's own records.\r | |
1254 | //\r | |
1255 | gMPSystem.NumberOfProcessors = NumberOfProcessors;\r | |
1256 | gMPSystem.NumberOfEnabledProcessors = NumberOfProcessors;\r | |
d18d8a1d | 1257 | \r |
c4671a67 | 1258 | gMPSystem.ProcessorData = AllocateZeroPool (gMPSystem.NumberOfProcessors * sizeof (PROCESSOR_DATA_BLOCK));\r |
1259 | ASSERT (gMPSystem.ProcessorData != NULL);\r | |
1260 | \r | |
1261 | FillInProcessorInformation (TRUE, 0);\r | |
d18d8a1d | 1262 | \r |
c4671a67 | 1263 | Status = gBS->CreateEvent (\r |
1264 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1265 | TPL_CALLBACK,\r | |
1266 | CpuCheckAllAPsStatus,\r | |
1267 | NULL,\r | |
1268 | &gMPSystem.CheckAllAPsEvent\r | |
1269 | );\r | |
1270 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1271 | \r |
c4671a67 | 1272 | \r |
1273 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r | |
1274 | if ((gMPSystem.ProcessorData[Index].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
1275 | // Skip BSP\r | |
1276 | continue;\r | |
1277 | }\r | |
d18d8a1d | 1278 | \r |
c4671a67 | 1279 | FillInProcessorInformation (FALSE, Index);\r |
d18d8a1d | 1280 | \r |
10d1be3e | 1281 | Status = gThread->CreateThread (\r |
d18d8a1d | 1282 | (VOID *)&gMPSystem.ProcessorData[Index].Info.ProcessorId,\r |
c4671a67 | 1283 | NULL,\r |
1284 | CpuDriverApIdolLoop,\r | |
1285 | (VOID *)Index\r | |
1286 | );\r | |
d18d8a1d | 1287 | \r |
1288 | \r | |
c4671a67 | 1289 | Status = gBS->CreateEvent (\r |
1290 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1291 | TPL_CALLBACK,\r | |
1292 | CpuCheckThisAPStatus,\r | |
1293 | (VOID *) &gMPSystem.ProcessorData[Index],\r | |
1294 | &gMPSystem.ProcessorData[Index].CheckThisAPEvent\r | |
1295 | );\r | |
1296 | }\r | |
1297 | \r | |
1298 | return EFI_SUCCESS;\r | |
1299 | }\r | |
1300 | \r | |
1301 | \r | |
1302 | \r | |
1303 | /**\r | |
1304 | Invoke a notification event\r | |
1305 | \r | |
1306 | @param Event Event whose notification function is being invoked.\r | |
1307 | @param Context The pointer to the notification function's context,\r | |
1308 | which is implementation-dependent.\r | |
1309 | \r | |
1310 | **/\r | |
1311 | VOID\r | |
1312 | EFIAPI\r | |
1313 | CpuReadToBootFunction (\r | |
1314 | IN EFI_EVENT Event,\r | |
1315 | IN VOID *Context\r | |
1316 | )\r | |
1317 | {\r | |
1318 | gReadToBoot = TRUE;\r | |
1319 | }\r | |
1320 | \r | |
1321 | \r | |
1322 | \r | |
1323 | EFI_STATUS\r | |
1324 | CpuMpServicesInit (\r | |
a0af6b27 | 1325 | OUT UINTN *MaxCpus\r |
c4671a67 | 1326 | )\r |
1327 | {\r | |
1328 | EFI_STATUS Status;\r | |
1329 | EFI_HANDLE Handle;\r | |
1330 | EMU_IO_THUNK_PROTOCOL *IoThunk;\r | |
d18d8a1d | 1331 | \r |
a0af6b27 | 1332 | *MaxCpus = 1; // BSP\r |
10d1be3e | 1333 | IoThunk = GetIoThunkInstance (&gEmuThreadThunkProtocolGuid, 0);\r |
c4671a67 | 1334 | if (IoThunk != NULL) {\r |
1335 | Status = IoThunk->Open (IoThunk);\r | |
1336 | if (!EFI_ERROR (Status)) {\r | |
1337 | if (IoThunk->ConfigString != NULL) {\r | |
a0af6b27 | 1338 | *MaxCpus += StrDecimalToUintn (IoThunk->ConfigString);\r |
10d1be3e | 1339 | gThread = IoThunk->Interface;\r |
c4671a67 | 1340 | }\r |
1341 | }\r | |
1342 | }\r | |
1343 | \r | |
a0af6b27 | 1344 | if (*MaxCpus == 1) {\r |
c4671a67 | 1345 | // We are not MP so nothing to do\r |
1346 | return EFI_SUCCESS;\r | |
1347 | }\r | |
1348 | \r | |
e148512e | 1349 | gPollInterval = (UINTN) PcdGet64 (PcdEmuMpServicesPollingInterval);\r |
c4671a67 | 1350 | \r |
a0af6b27 | 1351 | Status = InitializeMpSystemData (*MaxCpus);\r |
c4671a67 | 1352 | if (EFI_ERROR (Status)) {\r |
1353 | return Status;\r | |
1354 | }\r | |
1355 | \r | |
1356 | Status = EfiCreateEventReadyToBootEx (TPL_CALLBACK, CpuReadToBootFunction, NULL, &gReadToBootEvent);\r | |
1357 | ASSERT_EFI_ERROR (Status);\r | |
1358 | \r | |
1359 | //\r | |
1360 | // Now install the MP services protocol.\r | |
1361 | //\r | |
1362 | Handle = NULL;\r | |
1363 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1364 | &Handle,\r | |
d070eef8 | 1365 | &gEfiMpServiceProtocolGuid, &mMpServicesTemplate,\r |
c4671a67 | 1366 | NULL\r |
1367 | );\r | |
1368 | return Status;\r | |
1369 | }\r | |
1370 | \r | |
1371 | \r |