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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 | |
ca186b1d CF |
114 | /**\r |
115 | * Calculated and stalled the interval time by BSP to check whether\r | |
116 | * the APs have finished.\r | |
117 | *\r | |
118 | * @param[in] Timeout The time limit in microseconds for\r | |
119 | * APs to return from Procedure.\r | |
120 | *\r | |
121 | * @retval StallTime Time of execution stall.\r | |
122 | **/\r | |
123 | UINTN\r | |
124 | CalculateAndStallInterval (\r | |
125 | IN UINTN Timeout\r | |
126 | )\r | |
127 | {\r | |
128 | UINTN StallTime;\r | |
c4671a67 | 129 | \r |
ca186b1d CF |
130 | if (Timeout < gPollInterval && Timeout != 0) {\r |
131 | StallTime = Timeout;\r | |
132 | } else {\r | |
133 | StallTime = gPollInterval;\r | |
134 | }\r | |
135 | gBS->Stall (StallTime);\r | |
c4671a67 | 136 | \r |
ca186b1d CF |
137 | return StallTime;\r |
138 | }\r | |
c4671a67 | 139 | \r |
140 | /**\r | |
141 | This service retrieves the number of logical processor in the platform\r | |
142 | and the number of those logical processors that are enabled on this boot.\r | |
143 | This service may only be called from the BSP.\r | |
144 | \r | |
145 | This function is used to retrieve the following information:\r | |
146 | - The number of logical processors that are present in the system.\r | |
d18d8a1d | 147 | - The number of enabled logical processors in the system at the instant\r |
c4671a67 | 148 | this call is made.\r |
149 | \r | |
d18d8a1d | 150 | Because MP Service Protocol provides services to enable and disable processors\r |
151 | dynamically, the number of enabled logical processors may vary during the\r | |
c4671a67 | 152 | course of a boot session.\r |
d18d8a1d | 153 | \r |
154 | If this service is called from an AP, then EFI_DEVICE_ERROR is returned.\r | |
155 | If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then\r | |
156 | EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors\r | |
157 | is returned in NumberOfProcessors, the number of currently enabled processor\r | |
c4671a67 | 158 | is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.\r |
159 | \r | |
160 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
161 | instance.\r | |
162 | @param[out] NumberOfProcessors Pointer to the total number of logical\r | |
163 | processors in the system, including the BSP\r | |
164 | and disabled APs.\r | |
165 | @param[out] NumberOfEnabledProcessors Pointer to the number of enabled logical\r | |
166 | processors that exist in system, including\r | |
167 | the BSP.\r | |
168 | \r | |
d18d8a1d | 169 | @retval EFI_SUCCESS The number of logical processors and enabled\r |
c4671a67 | 170 | logical processors was retrieved.\r |
171 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
172 | @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.\r | |
173 | @retval EFI_INVALID_PARAMETER NumberOfEnabledProcessors is NULL.\r | |
174 | \r | |
175 | **/\r | |
176 | EFI_STATUS\r | |
177 | EFIAPI\r | |
178 | CpuMpServicesGetNumberOfProcessors (\r | |
179 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
180 | OUT UINTN *NumberOfProcessors,\r | |
181 | OUT UINTN *NumberOfEnabledProcessors\r | |
182 | )\r | |
183 | {\r | |
184 | if ((NumberOfProcessors == NULL) || (NumberOfEnabledProcessors == NULL)) {\r | |
185 | return EFI_INVALID_PARAMETER;\r | |
186 | }\r | |
d18d8a1d | 187 | \r |
c4671a67 | 188 | if (!IsBSP ()) {\r |
189 | return EFI_DEVICE_ERROR;\r | |
190 | }\r | |
d18d8a1d | 191 | \r |
c4671a67 | 192 | *NumberOfProcessors = gMPSystem.NumberOfProcessors;\r |
193 | *NumberOfEnabledProcessors = gMPSystem.NumberOfEnabledProcessors;\r | |
194 | return EFI_SUCCESS;\r | |
195 | }\r | |
196 | \r | |
197 | \r | |
198 | \r | |
199 | /**\r | |
200 | Gets detailed MP-related information on the requested processor at the\r | |
201 | instant this call is made. This service may only be called from the BSP.\r | |
202 | \r | |
d18d8a1d | 203 | This service retrieves detailed MP-related information about any processor\r |
c4671a67 | 204 | on the platform. Note the following:\r |
205 | - The processor information may change during the course of a boot session.\r | |
206 | - The information presented here is entirely MP related.\r | |
d18d8a1d | 207 | \r |
c4671a67 | 208 | Information regarding the number of caches and their sizes, frequency of operation,\r |
d18d8a1d | 209 | slot numbers is all considered platform-related information and is not provided\r |
c4671a67 | 210 | by this service.\r |
211 | \r | |
212 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
213 | instance.\r | |
214 | @param[in] ProcessorNumber The handle number of processor.\r | |
215 | @param[out] ProcessorInfoBuffer A pointer to the buffer where information for\r | |
216 | the requested processor is deposited.\r | |
217 | \r | |
218 | @retval EFI_SUCCESS Processor information was returned.\r | |
219 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
220 | @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.\r | |
221 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
222 | ProcessorNumber does not exist in the platform.\r | |
223 | \r | |
224 | **/\r | |
225 | EFI_STATUS\r | |
226 | EFIAPI\r | |
227 | CpuMpServicesGetProcessorInfo (\r | |
228 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
229 | IN UINTN ProcessorNumber,\r | |
230 | OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer\r | |
231 | )\r | |
232 | {\r | |
233 | if (ProcessorInfoBuffer == NULL) {\r | |
234 | return EFI_INVALID_PARAMETER;\r | |
235 | }\r | |
d18d8a1d | 236 | \r |
c4671a67 | 237 | if (!IsBSP ()) {\r |
238 | return EFI_DEVICE_ERROR;\r | |
239 | }\r | |
d18d8a1d | 240 | \r |
c4671a67 | 241 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
242 | return EFI_NOT_FOUND;\r | |
243 | }\r | |
d18d8a1d | 244 | \r |
c4671a67 | 245 | CopyMem (ProcessorInfoBuffer, &gMPSystem.ProcessorData[ProcessorNumber], sizeof (EFI_PROCESSOR_INFORMATION));\r |
246 | return EFI_SUCCESS;\r | |
247 | }\r | |
248 | \r | |
249 | \r | |
250 | /**\r | |
d18d8a1d | 251 | This service executes a caller provided function on all enabled APs. APs can\r |
252 | run either simultaneously or one at a time in sequence. This service supports\r | |
253 | both blocking and non-blocking requests. The non-blocking requests use EFI\r | |
254 | events so the BSP can detect when the APs have finished. This service may only\r | |
c4671a67 | 255 | be called from the BSP.\r |
256 | \r | |
d18d8a1d | 257 | This function is used to dispatch all the enabled APs to the function specified\r |
258 | by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned\r | |
c4671a67 | 259 | immediately and Procedure is not started on any AP.\r |
260 | \r | |
d18d8a1d | 261 | If SingleThread is TRUE, all the enabled APs execute the function specified by\r |
262 | Procedure one by one, in ascending order of processor handle number. Otherwise,\r | |
c4671a67 | 263 | all the enabled APs execute the function specified by Procedure simultaneously.\r |
264 | \r | |
d18d8a1d | 265 | If WaitEvent is NULL, execution is in blocking mode. The BSP waits until all\r |
266 | APs finish or TimeoutInMicroseconds expires. Otherwise, execution is in non-blocking\r | |
267 | mode, and the BSP returns from this service without waiting for APs. If a\r | |
268 | non-blocking mode is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
c4671a67 | 269 | is signaled, then EFI_UNSUPPORTED must be returned.\r |
270 | \r | |
d18d8a1d | 271 | If the timeout specified by TimeoutInMicroseconds expires before all APs return\r |
272 | from Procedure, then Procedure on the failed APs is terminated. All enabled APs\r | |
c4671a67 | 273 | are always available for further calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r |
d18d8a1d | 274 | and EFI_MP_SERVICES_PROTOCOL.StartupThisAP(). If FailedCpuList is not NULL, its\r |
275 | content points to the list of processor handle numbers in which Procedure was\r | |
c4671a67 | 276 | terminated.\r |
277 | \r | |
d18d8a1d | 278 | Note: It is the responsibility of the consumer of the EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r |
279 | to make sure that the nature of the code that is executed on the BSP and the\r | |
280 | dispatched APs is well controlled. The MP Services Protocol does not guarantee\r | |
281 | that the Procedure function is MP-safe. Hence, the tasks that can be run in\r | |
282 | parallel are limited to certain independent tasks and well-controlled exclusive\r | |
283 | code. EFI services and protocols may not be called by APs unless otherwise\r | |
c4671a67 | 284 | specified.\r |
285 | \r | |
d18d8a1d | 286 | In blocking execution mode, BSP waits until all APs finish or\r |
c4671a67 | 287 | TimeoutInMicroseconds expires.\r |
288 | \r | |
d18d8a1d | 289 | In non-blocking execution mode, BSP is freed to return to the caller and then\r |
290 | proceed to the next task without having to wait for APs. The following\r | |
c4671a67 | 291 | sequence needs to occur in a non-blocking execution mode:\r |
292 | \r | |
d18d8a1d | 293 | -# The caller that intends to use this MP Services Protocol in non-blocking\r |
294 | mode creates WaitEvent by calling the EFI CreateEvent() service. The caller\r | |
295 | invokes EFI_MP_SERVICES_PROTOCOL.StartupAllAPs(). If the parameter WaitEvent\r | |
296 | is not NULL, then StartupAllAPs() executes in non-blocking mode. It requests\r | |
297 | the function specified by Procedure to be started on all the enabled APs,\r | |
c4671a67 | 298 | and releases the BSP to continue with other tasks.\r |
d18d8a1d | 299 | -# The caller can use the CheckEvent() and WaitForEvent() services to check\r |
c4671a67 | 300 | the state of the WaitEvent created in step 1.\r |
d18d8a1d | 301 | -# When the APs complete their task or TimeoutInMicroSecondss expires, the MP\r |
302 | Service signals WaitEvent by calling the EFI SignalEvent() function. If\r | |
303 | FailedCpuList is not NULL, its content is available when WaitEvent is\r | |
304 | signaled. If all APs returned from Procedure prior to the timeout, then\r | |
305 | FailedCpuList is set to NULL. If not all APs return from Procedure before\r | |
306 | the timeout, then FailedCpuList is filled in with the list of the failed\r | |
307 | APs. The buffer is allocated by MP Service Protocol using AllocatePool().\r | |
c4671a67 | 308 | It is the caller's responsibility to free the buffer with FreePool() service.\r |
309 | -# This invocation of SignalEvent() function informs the caller that invoked\r | |
310 | EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() that either all the APs completed\r | |
d18d8a1d | 311 | the specified task or a timeout occurred. The contents of FailedCpuList\r |
312 | can be examined to determine which APs did not complete the specified task\r | |
c4671a67 | 313 | prior to the timeout.\r |
314 | \r | |
315 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
316 | instance.\r | |
d18d8a1d | 317 | @param[in] Procedure A pointer to the function to be run on\r |
c4671a67 | 318 | enabled APs of the system. See type\r |
319 | EFI_AP_PROCEDURE.\r | |
d18d8a1d | 320 | @param[in] SingleThread If TRUE, then all the enabled APs execute\r |
321 | the function specified by Procedure one by\r | |
322 | one, in ascending order of processor handle\r | |
323 | number. If FALSE, then all the enabled APs\r | |
c4671a67 | 324 | execute the function specified by Procedure\r |
325 | simultaneously.\r | |
326 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
d18d8a1d | 327 | service. If it is NULL, then execute in\r |
328 | blocking mode. BSP waits until all APs finish\r | |
329 | or TimeoutInMicroseconds expires. If it's\r | |
330 | not NULL, then execute in non-blocking mode.\r | |
331 | BSP requests the function specified by\r | |
332 | Procedure to be started on all the enabled\r | |
333 | APs, and go on executing immediately. If\r | |
c4671a67 | 334 | all return from Procedure, or TimeoutInMicroseconds\r |
d18d8a1d | 335 | expires, this event is signaled. The BSP\r |
336 | can use the CheckEvent() or WaitForEvent()\r | |
337 | services to check the state of event. Type\r | |
338 | EFI_EVENT is defined in CreateEvent() in\r | |
339 | the Unified Extensible Firmware Interface\r | |
340 | Specification.\r | |
341 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
342 | APs to return from Procedure, either for\r | |
343 | blocking or non-blocking mode. Zero means\r | |
344 | infinity. If the timeout expires before\r | |
c4671a67 | 345 | all APs return from Procedure, then Procedure\r |
d18d8a1d | 346 | on the failed APs is terminated. All enabled\r |
347 | APs are available for next function assigned\r | |
348 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
c4671a67 | 349 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
d18d8a1d | 350 | If the timeout expires in blocking mode,\r |
351 | BSP returns EFI_TIMEOUT. If the timeout\r | |
352 | expires in non-blocking mode, WaitEvent\r | |
c4671a67 | 353 | is signaled with SignalEvent().\r |
d18d8a1d | 354 | @param[in] ProcedureArgument The parameter passed into Procedure for\r |
c4671a67 | 355 | all APs.\r |
d18d8a1d | 356 | @param[out] FailedCpuList If NULL, this parameter is ignored. Otherwise,\r |
357 | if all APs finish successfully, then its\r | |
358 | content is set to NULL. If not all APs\r | |
359 | finish before timeout expires, then its\r | |
360 | content is set to address of the buffer\r | |
361 | holding handle numbers of the failed APs.\r | |
362 | The buffer is allocated by MP Service Protocol,\r | |
363 | and it's the caller's responsibility to\r | |
c4671a67 | 364 | free the buffer with FreePool() service.\r |
d18d8a1d | 365 | In blocking mode, it is ready for consumption\r |
366 | when the call returns. In non-blocking mode,\r | |
367 | it is ready when WaitEvent is signaled. The\r | |
368 | list of failed CPU is terminated by\r | |
c4671a67 | 369 | END_OF_CPU_LIST.\r |
370 | \r | |
d18d8a1d | 371 | @retval EFI_SUCCESS In blocking mode, all APs have finished before\r |
c4671a67 | 372 | the timeout expired.\r |
d18d8a1d | 373 | @retval EFI_SUCCESS In non-blocking mode, function has been dispatched\r |
c4671a67 | 374 | to all enabled APs.\r |
d18d8a1d | 375 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r |
376 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
c4671a67 | 377 | signaled.\r |
378 | @retval EFI_DEVICE_ERROR Caller processor is AP.\r | |
379 | @retval EFI_NOT_STARTED No enabled APs exist in the system.\r | |
380 | @retval EFI_NOT_READY Any enabled APs are busy.\r | |
d18d8a1d | 381 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r |
c4671a67 | 382 | all enabled APs have finished.\r |
383 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
384 | \r | |
385 | **/\r | |
386 | EFI_STATUS\r | |
387 | EFIAPI\r | |
388 | CpuMpServicesStartupAllAps (\r | |
389 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
390 | IN EFI_AP_PROCEDURE Procedure,\r | |
391 | IN BOOLEAN SingleThread,\r | |
392 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
393 | IN UINTN TimeoutInMicroseconds,\r | |
394 | IN VOID *ProcedureArgument OPTIONAL,\r | |
395 | OUT UINTN **FailedCpuList OPTIONAL\r | |
396 | )\r | |
397 | {\r | |
398 | EFI_STATUS Status;\r | |
399 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
c4671a67 | 400 | UINTN Number;\r |
401 | UINTN NextNumber;\r | |
402 | PROCESSOR_STATE APInitialState;\r | |
403 | PROCESSOR_STATE ProcessorState;\r | |
ca186b1d | 404 | UINTN Timeout;\r |
c4671a67 | 405 | \r |
406 | \r | |
407 | if (!IsBSP ()) {\r | |
408 | return EFI_DEVICE_ERROR;\r | |
409 | }\r | |
d18d8a1d | 410 | \r |
c4671a67 | 411 | if (gMPSystem.NumberOfProcessors == 1) {\r |
412 | return EFI_NOT_STARTED;\r | |
413 | }\r | |
414 | \r | |
415 | if (Procedure == NULL) {\r | |
416 | return EFI_INVALID_PARAMETER;\r | |
417 | }\r | |
d18d8a1d | 418 | \r |
c4671a67 | 419 | if ((WaitEvent != NULL) && gReadToBoot) {\r |
420 | return EFI_UNSUPPORTED;\r | |
421 | }\r | |
d18d8a1d | 422 | \r |
c156d27b CF |
423 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r |
424 | ProcessorData = &gMPSystem.ProcessorData[Number];\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 | |
430 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r | |
431 | // Skip Disabled processors\r | |
432 | continue;\r | |
433 | }\r | |
434 | gThread->MutexLock(ProcessorData->StateLock);\r | |
435 | if (ProcessorData->State != CPU_STATE_IDLE) {\r | |
436 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
437 | return EFI_NOT_READY;\r | |
438 | }\r | |
439 | gThread->MutexUnlock(ProcessorData->StateLock);\r | |
440 | }\r | |
d18d8a1d | 441 | \r |
c4671a67 | 442 | if (FailedCpuList != NULL) {\r |
8b6d0c05 | 443 | gMPSystem.FailedList = AllocatePool ((gMPSystem.NumberOfProcessors + 1) * sizeof (UINTN));\r |
444 | if (gMPSystem.FailedList == NULL) {\r | |
445 | return EFI_OUT_OF_RESOURCES;\r | |
446 | }\r | |
447 | SetMemN (gMPSystem.FailedList, (gMPSystem.NumberOfProcessors + 1) * sizeof (UINTN), END_OF_CPU_LIST);\r | |
448 | gMPSystem.FailedListIndex = 0;\r | |
449 | *FailedCpuList = gMPSystem.FailedList;\r | |
c4671a67 | 450 | }\r |
451 | \r | |
452 | Timeout = TimeoutInMicroseconds;\r | |
453 | \r | |
8b6d0c05 | 454 | ProcessorData = NULL;\r |
c4671a67 | 455 | \r |
8b6d0c05 | 456 | gMPSystem.FinishCount = 0;\r |
457 | gMPSystem.StartCount = 0;\r | |
458 | gMPSystem.SingleThread = SingleThread;\r | |
459 | APInitialState = CPU_STATE_READY;\r | |
c4671a67 | 460 | \r |
461 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
462 | ProcessorData = &gMPSystem.ProcessorData[Number];\r | |
463 | \r | |
464 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
465 | // Skip BSP\r | |
466 | continue;\r | |
467 | }\r | |
468 | \r | |
8b6d0c05 | 469 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
470 | // Skip Disabled processors\r | |
471 | gMPSystem.FailedList[gMPSystem.FailedListIndex++] = Number;\r | |
472 | continue;\r | |
473 | }\r | |
474 | \r | |
c4671a67 | 475 | //\r |
476 | // Get APs prepared, and put failing APs into FailedCpuList\r | |
477 | // if "SingleThread", only 1 AP will put to ready state, other AP will be put to ready\r | |
478 | // state 1 by 1, until the previous 1 finished its task\r | |
479 | // if not "SingleThread", all APs are put to ready state from the beginning\r | |
480 | //\r | |
a31a3b4a | 481 | gThread->MutexLock(ProcessorData->StateLock);\r |
c156d27b CF |
482 | ASSERT (ProcessorData->State == CPU_STATE_IDLE);\r |
483 | ProcessorData->State = APInitialState;\r | |
484 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
c4671a67 | 485 | \r |
c156d27b CF |
486 | gMPSystem.StartCount++;\r |
487 | if (SingleThread) {\r | |
488 | APInitialState = CPU_STATE_BLOCKED;\r | |
c4671a67 | 489 | }\r |
490 | }\r | |
d18d8a1d | 491 | \r |
8b6d0c05 | 492 | if (WaitEvent != NULL) {\r |
493 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
d18d8a1d | 494 | ProcessorData = &gMPSystem.ProcessorData[Number];\r |
8b6d0c05 | 495 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r |
496 | // Skip BSP\r | |
497 | continue;\r | |
498 | }\r | |
499 | \r | |
500 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r | |
501 | // Skip Disabled processors\r | |
502 | continue;\r | |
503 | }\r | |
d18d8a1d | 504 | \r |
5152f642 CF |
505 | gThread->MutexLock (ProcessorData->StateLock);\r |
506 | ProcessorState = ProcessorData->State;\r | |
507 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
508 | \r | |
509 | if (ProcessorState == CPU_STATE_READY) {\r | |
510 | SetApProcedure (ProcessorData, Procedure, ProcedureArgument);\r | |
511 | }\r | |
c4671a67 | 512 | }\r |
8b6d0c05 | 513 | \r |
514 | //\r | |
515 | // Save data into private data structure, and create timer to poll AP state before exiting\r | |
516 | //\r | |
517 | gMPSystem.Procedure = Procedure;\r | |
518 | gMPSystem.ProcedureArgument = ProcedureArgument;\r | |
519 | gMPSystem.WaitEvent = WaitEvent;\r | |
520 | gMPSystem.Timeout = TimeoutInMicroseconds;\r | |
521 | gMPSystem.TimeoutActive = (BOOLEAN)(TimeoutInMicroseconds != 0);\r | |
522 | Status = gBS->SetTimer (\r | |
523 | gMPSystem.CheckAllAPsEvent,\r | |
524 | TimerPeriodic,\r | |
525 | gPollInterval\r | |
526 | );\r | |
527 | return Status;\r | |
528 | \r | |
c4671a67 | 529 | }\r |
530 | \r | |
531 | while (TRUE) {\r | |
532 | for (Number = 0; Number < gMPSystem.NumberOfProcessors; Number++) {\r | |
d18d8a1d | 533 | ProcessorData = &gMPSystem.ProcessorData[Number];\r |
c4671a67 | 534 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r |
535 | // Skip BSP\r | |
536 | continue;\r | |
537 | }\r | |
538 | \r | |
8b6d0c05 | 539 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
540 | // Skip Disabled processors\r | |
541 | continue;\r | |
542 | }\r | |
543 | \r | |
10d1be3e | 544 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 545 | ProcessorState = ProcessorData->State;\r |
10d1be3e | 546 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 547 | \r |
548 | switch (ProcessorState) {\r | |
549 | case CPU_STATE_READY:\r | |
550 | SetApProcedure (ProcessorData, Procedure, ProcedureArgument);\r | |
551 | break;\r | |
552 | \r | |
553 | case CPU_STATE_FINISHED:\r | |
554 | gMPSystem.FinishCount++;\r | |
555 | if (SingleThread) {\r | |
556 | Status = GetNextBlockedNumber (&NextNumber);\r | |
557 | if (!EFI_ERROR (Status)) {\r | |
f9032449 | 558 | gThread->MutexLock (gMPSystem.ProcessorData[NextNumber].StateLock);\r |
c4671a67 | 559 | gMPSystem.ProcessorData[NextNumber].State = CPU_STATE_READY;\r |
f9032449 | 560 | gThread->MutexUnlock (gMPSystem.ProcessorData[NextNumber].StateLock);\r |
c4671a67 | 561 | }\r |
562 | }\r | |
563 | \r | |
70a2c7b1 | 564 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 565 | ProcessorData->State = CPU_STATE_IDLE;\r |
70a2c7b1 CF |
566 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
567 | \r | |
c4671a67 | 568 | break;\r |
569 | \r | |
570 | default:\r | |
571 | break;\r | |
572 | }\r | |
573 | }\r | |
574 | \r | |
575 | if (gMPSystem.FinishCount == gMPSystem.StartCount) {\r | |
8b6d0c05 | 576 | Status = EFI_SUCCESS;\r |
577 | goto Done;\r | |
c4671a67 | 578 | }\r |
579 | \r | |
ca186b1d | 580 | if ((TimeoutInMicroseconds != 0) && (Timeout == 0)) {\r |
8b6d0c05 | 581 | Status = EFI_TIMEOUT;\r |
582 | goto Done;\r | |
c4671a67 | 583 | }\r |
584 | \r | |
ca186b1d | 585 | Timeout -= CalculateAndStallInterval (Timeout);\r |
c4671a67 | 586 | }\r |
587 | \r | |
8b6d0c05 | 588 | Done:\r |
589 | if (FailedCpuList != NULL) {\r | |
590 | if (gMPSystem.FailedListIndex == 0) {\r | |
591 | FreePool (*FailedCpuList);\r | |
592 | *FailedCpuList = NULL;\r | |
593 | }\r | |
594 | }\r | |
595 | \r | |
c4671a67 | 596 | return EFI_SUCCESS;\r |
597 | }\r | |
598 | \r | |
599 | \r | |
600 | /**\r | |
d18d8a1d | 601 | This service lets the caller get one enabled AP to execute a caller-provided\r |
602 | function. The caller can request the BSP to either wait for the completion\r | |
603 | of the AP or just proceed with the next task by using the EFI event mechanism.\r | |
604 | See EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() for more details on non-blocking\r | |
c4671a67 | 605 | execution support. This service may only be called from the BSP.\r |
606 | \r | |
d18d8a1d | 607 | This function is used to dispatch one enabled AP to the function specified by\r |
608 | Procedure passing in the argument specified by ProcedureArgument. If WaitEvent\r | |
609 | is NULL, execution is in blocking mode. The BSP waits until the AP finishes or\r | |
610 | TimeoutInMicroSecondss expires. Otherwise, execution is in non-blocking mode.\r | |
611 | BSP proceeds to the next task without waiting for the AP. If a non-blocking mode\r | |
612 | is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled,\r | |
c4671a67 | 613 | then EFI_UNSUPPORTED must be returned.\r |
d18d8a1d | 614 | \r |
615 | If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r | |
616 | from Procedure, then execution of Procedure by the AP is terminated. The AP is\r | |
617 | available for subsequent calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() and\r | |
c4671a67 | 618 | EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
619 | \r | |
620 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
621 | instance.\r | |
d18d8a1d | 622 | @param[in] Procedure A pointer to the function to be run on\r |
c4671a67 | 623 | enabled APs of the system. See type\r |
624 | EFI_AP_PROCEDURE.\r | |
d18d8a1d | 625 | @param[in] ProcessorNumber The handle number of the AP. The range is\r |
c4671a67 | 626 | from 0 to the total number of logical\r |
d18d8a1d | 627 | processors minus 1. The total number of\r |
c4671a67 | 628 | logical processors can be retrieved by\r |
629 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
630 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
d18d8a1d | 631 | service. If it is NULL, then execute in\r |
632 | blocking mode. BSP waits until all APs finish\r | |
633 | or TimeoutInMicroseconds expires. If it's\r | |
634 | not NULL, then execute in non-blocking mode.\r | |
635 | BSP requests the function specified by\r | |
636 | Procedure to be started on all the enabled\r | |
637 | APs, and go on executing immediately. If\r | |
c4671a67 | 638 | all return from Procedure or TimeoutInMicroseconds\r |
d18d8a1d | 639 | expires, this event is signaled. The BSP\r |
640 | can use the CheckEvent() or WaitForEvent()\r | |
641 | services to check the state of event. Type\r | |
642 | EFI_EVENT is defined in CreateEvent() in\r | |
643 | the Unified Extensible Firmware Interface\r | |
644 | Specification.\r | |
645 | @param[in] TimeoutInMicrosecsond Indicates the time limit in microseconds for\r | |
646 | APs to return from Procedure, either for\r | |
647 | blocking or non-blocking mode. Zero means\r | |
648 | infinity. If the timeout expires before\r | |
c4671a67 | 649 | all APs return from Procedure, then Procedure\r |
d18d8a1d | 650 | on the failed APs is terminated. All enabled\r |
651 | APs are available for next function assigned\r | |
652 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
c4671a67 | 653 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r |
d18d8a1d | 654 | If the timeout expires in blocking mode,\r |
655 | BSP returns EFI_TIMEOUT. If the timeout\r | |
656 | expires in non-blocking mode, WaitEvent\r | |
c4671a67 | 657 | is signaled with SignalEvent().\r |
d18d8a1d | 658 | @param[in] ProcedureArgument The parameter passed into Procedure for\r |
c4671a67 | 659 | all APs.\r |
d18d8a1d | 660 | @param[out] Finished If NULL, this parameter is ignored. In\r |
c4671a67 | 661 | blocking mode, this parameter is ignored.\r |
d18d8a1d | 662 | In non-blocking mode, if AP returns from\r |
c4671a67 | 663 | Procedure before the timeout expires, its\r |
d18d8a1d | 664 | content is set to TRUE. Otherwise, the\r |
c4671a67 | 665 | value is set to FALSE. The caller can\r |
d18d8a1d | 666 | determine if the AP returned from Procedure\r |
c4671a67 | 667 | by evaluating this value.\r |
668 | \r | |
d18d8a1d | 669 | @retval EFI_SUCCESS In blocking mode, specified AP finished before\r |
c4671a67 | 670 | the timeout expires.\r |
d18d8a1d | 671 | @retval EFI_SUCCESS In non-blocking mode, the function has been\r |
c4671a67 | 672 | dispatched to specified AP.\r |
d18d8a1d | 673 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r |
674 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
c4671a67 | 675 | signaled.\r |
676 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
d18d8a1d | 677 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r |
c4671a67 | 678 | the specified AP has finished.\r |
679 | @retval EFI_NOT_READY The specified AP is busy.\r | |
d18d8a1d | 680 | @retval EFI_NOT_FOUND The processor with the handle specified by\r |
c4671a67 | 681 | ProcessorNumber does not exist.\r |
682 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r | |
683 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
684 | \r | |
685 | **/\r | |
686 | EFI_STATUS\r | |
687 | EFIAPI\r | |
688 | CpuMpServicesStartupThisAP (\r | |
689 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
690 | IN EFI_AP_PROCEDURE Procedure,\r | |
691 | IN UINTN ProcessorNumber,\r | |
692 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
693 | IN UINTN TimeoutInMicroseconds,\r | |
694 | IN VOID *ProcedureArgument OPTIONAL,\r | |
695 | OUT BOOLEAN *Finished OPTIONAL\r | |
696 | )\r | |
697 | {\r | |
ca186b1d | 698 | UINTN Timeout;\r |
d18d8a1d | 699 | \r |
c4671a67 | 700 | if (!IsBSP ()) {\r |
701 | return EFI_DEVICE_ERROR;\r | |
702 | }\r | |
d18d8a1d | 703 | \r |
c4671a67 | 704 | if (Procedure == NULL) {\r |
705 | return EFI_INVALID_PARAMETER;\r | |
706 | }\r | |
d18d8a1d | 707 | \r |
c4671a67 | 708 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
709 | return EFI_NOT_FOUND;\r | |
710 | }\r | |
d18d8a1d | 711 | \r |
c4671a67 | 712 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r |
713 | return EFI_INVALID_PARAMETER;\r | |
714 | }\r | |
715 | \r | |
8864869a CF |
716 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
717 | return EFI_INVALID_PARAMETER;\r | |
718 | }\r | |
719 | \r | |
a31a3b4a | 720 | gThread->MutexLock(gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 721 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
a31a3b4a | 722 | gThread->MutexUnlock(gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 723 | return EFI_NOT_READY;\r |
724 | }\r | |
a31a3b4a | 725 | gThread->MutexUnlock(gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 726 | \r |
727 | if ((WaitEvent != NULL) && gReadToBoot) {\r | |
728 | return EFI_UNSUPPORTED;\r | |
729 | }\r | |
730 | \r | |
731 | Timeout = TimeoutInMicroseconds;\r | |
732 | \r | |
733 | gMPSystem.StartCount = 1;\r | |
734 | gMPSystem.FinishCount = 0;\r | |
735 | \r | |
736 | SetApProcedure (&gMPSystem.ProcessorData[ProcessorNumber], Procedure, ProcedureArgument);\r | |
737 | \r | |
8b6d0c05 | 738 | if (WaitEvent != NULL) {\r |
d75d0409 | 739 | // Non Blocking\r |
740 | gMPSystem.WaitEvent = WaitEvent;\r | |
741 | gBS->SetTimer (\r | |
742 | gMPSystem.ProcessorData[ProcessorNumber].CheckThisAPEvent,\r | |
743 | TimerPeriodic,\r | |
744 | gPollInterval\r | |
745 | );\r | |
8b6d0c05 | 746 | return EFI_SUCCESS;\r |
747 | }\r | |
748 | \r | |
749 | // Blocking\r | |
c4671a67 | 750 | while (TRUE) {\r |
f9032449 | 751 | gThread->MutexLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 752 | if (gMPSystem.ProcessorData[ProcessorNumber].State == CPU_STATE_FINISHED) {\r |
753 | gMPSystem.ProcessorData[ProcessorNumber].State = CPU_STATE_IDLE;\r | |
f9032449 | 754 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 755 | break;\r |
756 | }\r | |
757 | \r | |
f9032449 | 758 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 759 | \r |
ca186b1d | 760 | if ((TimeoutInMicroseconds != 0) && (Timeout == 0)) {\r |
c4671a67 | 761 | return EFI_TIMEOUT;\r |
762 | }\r | |
763 | \r | |
ca186b1d | 764 | Timeout -= CalculateAndStallInterval (Timeout);\r |
c4671a67 | 765 | }\r |
766 | \r | |
767 | return EFI_SUCCESS;\r | |
768 | \r | |
769 | }\r | |
770 | \r | |
771 | \r | |
772 | /**\r | |
d18d8a1d | 773 | This service switches the requested AP to be the BSP from that point onward.\r |
774 | This service changes the BSP for all purposes. This call can only be performed\r | |
c4671a67 | 775 | by the current BSP.\r |
776 | \r | |
d18d8a1d | 777 | This service switches the requested AP to be the BSP from that point onward.\r |
778 | This service changes the BSP for all purposes. The new BSP can take over the\r | |
779 | execution of the old BSP and continue seamlessly from where the old one left\r | |
780 | off. This service may not be supported after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
c4671a67 | 781 | is signaled.\r |
782 | \r | |
d18d8a1d | 783 | If the BSP cannot be switched prior to the return from this service, then\r |
c4671a67 | 784 | EFI_UNSUPPORTED must be returned.\r |
785 | \r | |
786 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 787 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
788 | BSP. The range is from 0 to the total number of\r | |
789 | logical processors minus 1. The total number of\r | |
c4671a67 | 790 | logical processors can be retrieved by\r |
791 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
d18d8a1d | 792 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an\r |
c4671a67 | 793 | enabled AP. Otherwise, it will be disabled.\r |
794 | \r | |
795 | @retval EFI_SUCCESS BSP successfully switched.\r | |
d18d8a1d | 796 | @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to\r |
c4671a67 | 797 | this service returning.\r |
798 | @retval EFI_UNSUPPORTED Switching the BSP is not supported.\r | |
799 | @retval EFI_SUCCESS The calling processor is an AP.\r | |
800 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
801 | ProcessorNumber does not exist.\r | |
d18d8a1d | 802 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or\r |
c4671a67 | 803 | a disabled AP.\r |
804 | @retval EFI_NOT_READY The specified AP is busy.\r | |
805 | \r | |
806 | **/\r | |
807 | EFI_STATUS\r | |
808 | EFIAPI\r | |
809 | CpuMpServicesSwitchBSP (\r | |
810 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
811 | IN UINTN ProcessorNumber,\r | |
812 | IN BOOLEAN EnableOldBSP\r | |
813 | )\r | |
814 | {\r | |
815 | UINTN Index;\r | |
d18d8a1d | 816 | \r |
c4671a67 | 817 | if (!IsBSP ()) {\r |
818 | return EFI_DEVICE_ERROR;\r | |
819 | }\r | |
d18d8a1d | 820 | \r |
c4671a67 | 821 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
822 | return EFI_NOT_FOUND;\r | |
823 | }\r | |
d18d8a1d | 824 | \r |
c4671a67 | 825 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
826 | return EFI_INVALID_PARAMETER;\r | |
827 | }\r | |
828 | \r | |
829 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
830 | return EFI_INVALID_PARAMETER;\r | |
831 | }\r | |
d18d8a1d | 832 | \r |
c4671a67 | 833 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r |
834 | if ((gMPSystem.ProcessorData[Index].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r | |
835 | break;\r | |
836 | }\r | |
837 | }\r | |
838 | ASSERT (Index != gMPSystem.NumberOfProcessors);\r | |
d18d8a1d | 839 | \r |
a31a3b4a | 840 | gThread->MutexLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 841 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
a31a3b4a | 842 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 843 | return EFI_NOT_READY;\r |
844 | }\r | |
a31a3b4a | 845 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
d18d8a1d | 846 | \r |
c4671a67 | 847 | // Skip for now as we need switch a bunch of stack stuff around and it's complex\r |
848 | // May not be worth it?\r | |
849 | return EFI_NOT_READY;\r | |
850 | }\r | |
851 | \r | |
852 | \r | |
853 | /**\r | |
d18d8a1d | 854 | This service lets the caller enable or disable an AP from this point onward.\r |
c4671a67 | 855 | This service may only be called from the BSP.\r |
856 | \r | |
d18d8a1d | 857 | This service allows the caller enable or disable an AP from this point onward.\r |
858 | The caller can optionally specify the health status of the AP by Health. If\r | |
859 | an AP is being disabled, then the state of the disabled AP is implementation\r | |
860 | dependent. If an AP is enabled, then the implementation must guarantee that a\r | |
861 | complete initialization sequence is performed on the AP, so the AP is in a state\r | |
862 | that is compatible with an MP operating system. This service may not be supported\r | |
c4671a67 | 863 | after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled.\r |
864 | \r | |
d18d8a1d | 865 | If the enable or disable AP operation cannot be completed prior to the return\r |
c4671a67 | 866 | from this service, then EFI_UNSUPPORTED must be returned.\r |
867 | \r | |
868 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 869 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
870 | BSP. The range is from 0 to the total number of\r | |
871 | logical processors minus 1. The total number of\r | |
c4671a67 | 872 | logical processors can be retrieved by\r |
873 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
d18d8a1d | 874 | @param[in] EnableAP Specifies the new state for the processor for\r |
c4671a67 | 875 | enabled, FALSE for disabled.\r |
d18d8a1d | 876 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies\r |
877 | the new health status of the AP. This flag\r | |
878 | corresponds to StatusFlag defined in\r | |
879 | EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only\r | |
880 | the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r | |
881 | bits are ignored. If it is NULL, this parameter\r | |
c4671a67 | 882 | is ignored.\r |
883 | \r | |
884 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r | |
d18d8a1d | 885 | @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed\r |
c4671a67 | 886 | prior to this service returning.\r |
887 | @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r | |
888 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
889 | @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r | |
890 | does not exist.\r | |
891 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r | |
892 | \r | |
893 | **/\r | |
894 | EFI_STATUS\r | |
895 | EFIAPI\r | |
896 | CpuMpServicesEnableDisableAP (\r | |
897 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
898 | IN UINTN ProcessorNumber,\r | |
899 | IN BOOLEAN EnableAP,\r | |
900 | IN UINT32 *HealthFlag OPTIONAL\r | |
901 | )\r | |
902 | {\r | |
903 | if (!IsBSP ()) {\r | |
904 | return EFI_DEVICE_ERROR;\r | |
905 | }\r | |
d18d8a1d | 906 | \r |
c4671a67 | 907 | if (ProcessorNumber >= gMPSystem.NumberOfProcessors) {\r |
908 | return EFI_NOT_FOUND;\r | |
909 | }\r | |
d18d8a1d | 910 | \r |
c4671a67 | 911 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) != 0) {\r |
912 | return EFI_INVALID_PARAMETER;\r | |
d18d8a1d | 913 | }\r |
c4671a67 | 914 | \r |
a31a3b4a | 915 | gThread->MutexLock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 916 | if (gMPSystem.ProcessorData[ProcessorNumber].State != CPU_STATE_IDLE) {\r |
a31a3b4a | 917 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 918 | return EFI_UNSUPPORTED;\r |
919 | }\r | |
a31a3b4a | 920 | gThread->MutexUnlock (gMPSystem.ProcessorData[ProcessorNumber].StateLock);\r |
c4671a67 | 921 | \r |
c4671a67 | 922 | if (EnableAP) {\r |
923 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0 ) {\r | |
924 | gMPSystem.NumberOfEnabledProcessors++;\r | |
925 | }\r | |
926 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= PROCESSOR_ENABLED_BIT;\r | |
927 | } else {\r | |
928 | if ((gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag & PROCESSOR_ENABLED_BIT) == PROCESSOR_ENABLED_BIT ) {\r | |
929 | gMPSystem.NumberOfEnabledProcessors--;\r | |
930 | }\r | |
931 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag &= ~PROCESSOR_ENABLED_BIT;\r | |
932 | }\r | |
d18d8a1d | 933 | \r |
c4671a67 | 934 | if (HealthFlag != NULL) {\r |
935 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag &= ~PROCESSOR_HEALTH_STATUS_BIT;\r | |
936 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT);\r | |
937 | }\r | |
d18d8a1d | 938 | \r |
c4671a67 | 939 | return EFI_SUCCESS;\r |
940 | }\r | |
941 | \r | |
942 | \r | |
943 | /**\r | |
d18d8a1d | 944 | This return the handle number for the calling processor. This service may be\r |
c4671a67 | 945 | called from the BSP and APs.\r |
946 | \r | |
d18d8a1d | 947 | This service returns the processor handle number for the calling processor.\r |
948 | The returned value is in the range from 0 to the total number of logical\r | |
949 | processors minus 1. The total number of logical processors can be retrieved\r | |
950 | with EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors(). This service may be\r | |
951 | called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r | |
952 | is returned. Otherwise, the current processors handle number is returned in\r | |
c4671a67 | 953 | ProcessorNumber, and EFI_SUCCESS is returned.\r |
954 | \r | |
955 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
d18d8a1d | 956 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r |
957 | BSP. The range is from 0 to the total number of\r | |
958 | logical processors minus 1. The total number of\r | |
c4671a67 | 959 | logical processors can be retrieved by\r |
960 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
961 | \r | |
d18d8a1d | 962 | @retval EFI_SUCCESS The current processor handle number was returned\r |
c4671a67 | 963 | in ProcessorNumber.\r |
964 | @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r | |
965 | \r | |
966 | **/\r | |
967 | EFI_STATUS\r | |
968 | EFIAPI\r | |
969 | CpuMpServicesWhoAmI (\r | |
970 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
971 | OUT UINTN *ProcessorNumber\r | |
972 | )\r | |
973 | {\r | |
974 | UINTN Index;\r | |
975 | UINT64 ProcessorId;\r | |
d18d8a1d | 976 | \r |
c4671a67 | 977 | if (ProcessorNumber == NULL) {\r |
978 | return EFI_INVALID_PARAMETER;\r | |
979 | }\r | |
d18d8a1d | 980 | \r |
10d1be3e | 981 | ProcessorId = gThread->Self ();\r |
c4671a67 | 982 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r |
983 | if (gMPSystem.ProcessorData[Index].Info.ProcessorId == ProcessorId) {\r | |
984 | break;\r | |
985 | }\r | |
986 | }\r | |
987 | \r | |
988 | *ProcessorNumber = Index;\r | |
989 | return EFI_SUCCESS;\r | |
990 | }\r | |
991 | \r | |
992 | \r | |
993 | \r | |
d070eef8 | 994 | EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {\r |
c4671a67 | 995 | CpuMpServicesGetNumberOfProcessors,\r |
996 | CpuMpServicesGetProcessorInfo,\r | |
997 | CpuMpServicesStartupAllAps,\r | |
998 | CpuMpServicesStartupThisAP,\r | |
999 | CpuMpServicesSwitchBSP,\r | |
1000 | CpuMpServicesEnableDisableAP,\r | |
1001 | CpuMpServicesWhoAmI\r | |
1002 | };\r | |
1003 | \r | |
1004 | \r | |
1005 | \r | |
1006 | /*++\r | |
1007 | If timeout occurs in StartupAllAps(), a timer is set, which invokes this\r | |
1008 | procedure periodically to check whether all APs have finished.\r | |
1009 | \r | |
1010 | \r | |
1011 | --*/\r | |
1012 | VOID\r | |
1013 | EFIAPI\r | |
1014 | CpuCheckAllAPsStatus (\r | |
1015 | IN EFI_EVENT Event,\r | |
1016 | IN VOID *Context\r | |
1017 | )\r | |
1018 | {\r | |
1019 | UINTN ProcessorNumber;\r | |
1020 | UINTN NextNumber;\r | |
1021 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
1022 | PROCESSOR_DATA_BLOCK *NextData;\r | |
1023 | EFI_STATUS Status;\r | |
1024 | PROCESSOR_STATE ProcessorState;\r | |
8b6d0c05 | 1025 | UINTN Cpu;\r |
1026 | BOOLEAN Found;\r | |
c4671a67 | 1027 | \r |
8b6d0c05 | 1028 | if (gMPSystem.TimeoutActive) {\r |
ca186b1d | 1029 | gMPSystem.Timeout -= CalculateAndStallInterval (gMPSystem.Timeout);\r |
8b6d0c05 | 1030 | }\r |
d18d8a1d | 1031 | \r |
c4671a67 | 1032 | for (ProcessorNumber = 0; ProcessorNumber < gMPSystem.NumberOfProcessors; ProcessorNumber++) {\r |
8ab6d73c CF |
1033 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r |
1034 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
c4671a67 | 1035 | // Skip BSP\r |
1036 | continue;\r | |
1037 | }\r | |
1038 | \r | |
8b6d0c05 | 1039 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
1040 | // Skip Disabled processors\r | |
1041 | continue;\r | |
1042 | }\r | |
1043 | \r | |
c4671a67 | 1044 | // This is an Interrupt Service routine.\r |
1045 | // This can grab a lock that is held in a non-interrupt\r | |
1046 | // context. Meaning deadlock. Which is a bad thing.\r | |
1047 | // So, try lock it. If we can get it, cool, do our thing.\r | |
1048 | // otherwise, just dump out & try again on the next iteration.\r | |
1a160a74 | 1049 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
c4671a67 | 1050 | if (EFI_ERROR(Status)) {\r |
1051 | return;\r | |
1052 | }\r | |
1a160a74 CF |
1053 | ProcessorState = ProcessorData->State;\r |
1054 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
c4671a67 | 1055 | \r |
1056 | switch (ProcessorState) {\r | |
c4671a67 | 1057 | case CPU_STATE_FINISHED:\r |
1058 | if (gMPSystem.SingleThread) {\r | |
1059 | Status = GetNextBlockedNumber (&NextNumber);\r | |
1060 | if (!EFI_ERROR (Status)) {\r | |
1061 | NextData = &gMPSystem.ProcessorData[NextNumber];\r | |
1062 | \r | |
f9032449 | 1063 | gThread->MutexLock (NextData->StateLock);\r |
c4671a67 | 1064 | NextData->State = CPU_STATE_READY;\r |
f9032449 | 1065 | gThread->MutexUnlock (NextData->StateLock);\r |
c4671a67 | 1066 | \r |
1067 | SetApProcedure (NextData, gMPSystem.Procedure, gMPSystem.ProcedureArgument);\r | |
1068 | }\r | |
1069 | }\r | |
1070 | \r | |
1a160a74 CF |
1071 | gThread->MutexLock (ProcessorData->StateLock);\r |
1072 | ProcessorData->State = CPU_STATE_IDLE;\r | |
1073 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
c4671a67 | 1074 | gMPSystem.FinishCount++;\r |
1075 | break;\r | |
1076 | \r | |
1077 | default:\r | |
1078 | break;\r | |
1079 | }\r | |
1080 | }\r | |
d18d8a1d | 1081 | \r |
ca186b1d | 1082 | if (gMPSystem.TimeoutActive && gMPSystem.Timeout == 0) {\r |
8b6d0c05 | 1083 | //\r |
1084 | // Timeout\r | |
1085 | //\r | |
1086 | if (gMPSystem.FailedList != NULL) {\r | |
1087 | for (ProcessorNumber = 0; ProcessorNumber < gMPSystem.NumberOfProcessors; ProcessorNumber++) {\r | |
8ab6d73c CF |
1088 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r |
1089 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
8b6d0c05 | 1090 | // Skip BSP\r |
1091 | continue;\r | |
1092 | }\r | |
c4671a67 | 1093 | \r |
8b6d0c05 | 1094 | if ((ProcessorData->Info.StatusFlag & PROCESSOR_ENABLED_BIT) == 0) {\r |
1095 | // Skip Disabled processors\r | |
1096 | continue;\r | |
1097 | }\r | |
d18d8a1d | 1098 | \r |
1099 | // Mark the\r | |
1a160a74 | 1100 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
8b6d0c05 | 1101 | if (EFI_ERROR(Status)) {\r |
1102 | return;\r | |
1103 | }\r | |
1a160a74 CF |
1104 | ProcessorState = ProcessorData->State;\r |
1105 | gThread->MutexUnlock (ProcessorData->StateLock);\r | |
d18d8a1d | 1106 | \r |
8b6d0c05 | 1107 | if (ProcessorState != CPU_STATE_IDLE) {\r |
1108 | // If we are retrying make sure we don't double count\r | |
1109 | for (Cpu = 0, Found = FALSE; Cpu < gMPSystem.NumberOfProcessors; Cpu++) {\r | |
1110 | if (gMPSystem.FailedList[Cpu] == END_OF_CPU_LIST) {\r | |
1111 | break;\r | |
1112 | }\r | |
1113 | if (gMPSystem.FailedList[ProcessorNumber] == Cpu) {\r | |
1114 | Found = TRUE;\r | |
1115 | break;\r | |
1116 | }\r | |
1117 | }\r | |
1118 | if (!Found) {\r | |
1119 | gMPSystem.FailedList[gMPSystem.FailedListIndex++] = Cpu;\r | |
1120 | }\r | |
1121 | }\r | |
1122 | }\r | |
1123 | }\r | |
1124 | // Force terminal exit\r | |
1125 | gMPSystem.FinishCount = gMPSystem.StartCount;\r | |
1126 | }\r | |
1127 | \r | |
1128 | if (gMPSystem.FinishCount != gMPSystem.StartCount) {\r | |
1129 | return;\r | |
c4671a67 | 1130 | }\r |
d18d8a1d | 1131 | \r |
8b6d0c05 | 1132 | gBS->SetTimer (\r |
1133 | gMPSystem.CheckAllAPsEvent,\r | |
1134 | TimerCancel,\r | |
1135 | 0\r | |
1136 | );\r | |
1137 | \r | |
1138 | if (gMPSystem.FailedListIndex == 0) {\r | |
1139 | if (gMPSystem.FailedList != NULL) {\r | |
1140 | FreePool (gMPSystem.FailedList);\r | |
1141 | gMPSystem.FailedList = NULL;\r | |
1142 | }\r | |
1143 | }\r | |
1144 | \r | |
1145 | Status = gBS->SignalEvent (gMPSystem.WaitEvent);\r | |
c4671a67 | 1146 | \r |
1147 | return ;\r | |
1148 | }\r | |
1149 | \r | |
1150 | VOID\r | |
1151 | EFIAPI\r | |
1152 | CpuCheckThisAPStatus (\r | |
1153 | IN EFI_EVENT Event,\r | |
1154 | IN VOID *Context\r | |
1155 | )\r | |
1156 | {\r | |
1157 | EFI_STATUS Status;\r | |
1158 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
1159 | PROCESSOR_STATE ProcessorState;\r | |
1160 | \r | |
1161 | ProcessorData = (PROCESSOR_DATA_BLOCK *) Context;\r | |
1162 | \r | |
1163 | //\r | |
8b6d0c05 | 1164 | // This is an Interrupt Service routine.\r |
1165 | // that can grab a lock that is held in a non-interrupt\r | |
c4671a67 | 1166 | // context. Meaning deadlock. Which is a badddd thing.\r |
1167 | // So, try lock it. If we can get it, cool, do our thing.\r | |
1168 | // otherwise, just dump out & try again on the next iteration.\r | |
1169 | //\r | |
10d1be3e | 1170 | Status = gThread->MutexTryLock (ProcessorData->StateLock);\r |
c4671a67 | 1171 | if (EFI_ERROR(Status)) {\r |
1172 | return;\r | |
1173 | }\r | |
1174 | ProcessorState = ProcessorData->State;\r | |
10d1be3e | 1175 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1176 | \r |
1177 | if (ProcessorState == CPU_STATE_FINISHED) {\r | |
1178 | Status = gBS->SetTimer (ProcessorData->CheckThisAPEvent, TimerCancel, 0);\r | |
1179 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1180 | \r |
c4671a67 | 1181 | Status = gBS->SignalEvent (gMPSystem.WaitEvent);\r |
1182 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1183 | \r |
10d1be3e | 1184 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1185 | ProcessorData->State = CPU_STATE_IDLE;\r |
10d1be3e | 1186 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1187 | }\r |
1188 | \r | |
1189 | return ;\r | |
1190 | }\r | |
1191 | \r | |
1192 | \r | |
1193 | /*++\r | |
1194 | This function is called by all processors (both BSP and AP) once and collects MP related data\r | |
1195 | \r | |
1196 | MPSystemData - Pointer to the data structure containing MP related data\r | |
1197 | BSP - TRUE if the CPU is BSP\r | |
1198 | \r | |
1199 | EFI_SUCCESS - Data for the processor collected and filled in\r | |
1200 | \r | |
1201 | --*/\r | |
1202 | EFI_STATUS\r | |
1203 | FillInProcessorInformation (\r | |
1204 | IN BOOLEAN BSP,\r | |
1205 | IN UINTN ProcessorNumber\r | |
1206 | )\r | |
1207 | {\r | |
10d1be3e | 1208 | gMPSystem.ProcessorData[ProcessorNumber].Info.ProcessorId = gThread->Self ();\r |
c4671a67 | 1209 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag = PROCESSOR_ENABLED_BIT | PROCESSOR_HEALTH_STATUS_BIT;\r |
1210 | if (BSP) {\r | |
1211 | gMPSystem.ProcessorData[ProcessorNumber].Info.StatusFlag |= PROCESSOR_AS_BSP_BIT;\r | |
1212 | }\r | |
d18d8a1d | 1213 | \r |
e148512e | 1214 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Package = (UINT32) ProcessorNumber;\r |
c4671a67 | 1215 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Core = 0;\r |
1216 | gMPSystem.ProcessorData[ProcessorNumber].Info.Location.Thread = 0;\r | |
1217 | gMPSystem.ProcessorData[ProcessorNumber].State = BSP ? CPU_STATE_BUSY : CPU_STATE_IDLE;\r | |
d18d8a1d | 1218 | \r |
c4671a67 | 1219 | gMPSystem.ProcessorData[ProcessorNumber].Procedure = NULL;\r |
1220 | gMPSystem.ProcessorData[ProcessorNumber].Parameter = NULL;\r | |
10d1be3e | 1221 | gMPSystem.ProcessorData[ProcessorNumber].StateLock = gThread->MutexInit ();\r |
1222 | gMPSystem.ProcessorData[ProcessorNumber].ProcedureLock = gThread->MutexInit ();\r | |
c4671a67 | 1223 | \r |
1224 | return EFI_SUCCESS;\r | |
1225 | }\r | |
1226 | \r | |
1227 | VOID *\r | |
1228 | EFIAPI\r | |
1229 | CpuDriverApIdolLoop (\r | |
1230 | VOID *Context\r | |
1231 | )\r | |
1232 | {\r | |
1233 | EFI_AP_PROCEDURE Procedure;\r | |
1234 | VOID *Parameter;\r | |
1235 | UINTN ProcessorNumber;\r | |
1236 | PROCESSOR_DATA_BLOCK *ProcessorData;\r | |
d18d8a1d | 1237 | \r |
c4671a67 | 1238 | ProcessorNumber = (UINTN)Context;\r |
1239 | ProcessorData = &gMPSystem.ProcessorData[ProcessorNumber];\r | |
d18d8a1d | 1240 | \r |
10d1be3e | 1241 | ProcessorData->Info.ProcessorId = gThread->Self ();\r |
d18d8a1d | 1242 | \r |
c4671a67 | 1243 | while (TRUE) {\r |
1244 | //\r | |
1245 | // Make a local copy on the stack to be extra safe\r | |
1246 | //\r | |
10d1be3e | 1247 | gThread->MutexLock (ProcessorData->ProcedureLock);\r |
c4671a67 | 1248 | Procedure = ProcessorData->Procedure;\r |
1249 | Parameter = ProcessorData->Parameter;\r | |
10d1be3e | 1250 | gThread->MutexUnlock (ProcessorData->ProcedureLock);\r |
d18d8a1d | 1251 | \r |
c4671a67 | 1252 | if (Procedure != NULL) {\r |
10d1be3e | 1253 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1254 | ProcessorData->State = CPU_STATE_BUSY;\r |
10d1be3e | 1255 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
d18d8a1d | 1256 | \r |
c4671a67 | 1257 | Procedure (Parameter);\r |
d18d8a1d | 1258 | \r |
10d1be3e | 1259 | gThread->MutexLock (ProcessorData->ProcedureLock);\r |
c4671a67 | 1260 | ProcessorData->Procedure = NULL;\r |
10d1be3e | 1261 | gThread->MutexUnlock (ProcessorData->ProcedureLock);\r |
d18d8a1d | 1262 | \r |
10d1be3e | 1263 | gThread->MutexLock (ProcessorData->StateLock);\r |
c4671a67 | 1264 | ProcessorData->State = CPU_STATE_FINISHED;\r |
d18d8a1d | 1265 | gThread->MutexUnlock (ProcessorData->StateLock);\r |
c4671a67 | 1266 | }\r |
d18d8a1d | 1267 | \r |
c4671a67 | 1268 | // Poll 5 times a seconds, 200ms\r |
1269 | // Don't want to burn too many system resources doing nothing.\r | |
1ef41207 | 1270 | gEmuThunk->Sleep (200 * 1000);\r |
c4671a67 | 1271 | }\r |
d18d8a1d | 1272 | \r |
c4671a67 | 1273 | return 0;\r |
1274 | }\r | |
1275 | \r | |
1276 | \r | |
1277 | EFI_STATUS\r | |
1278 | InitializeMpSystemData (\r | |
1279 | IN UINTN NumberOfProcessors\r | |
1280 | )\r | |
1281 | {\r | |
1282 | EFI_STATUS Status;\r | |
1283 | UINTN Index;\r | |
1284 | \r | |
d18d8a1d | 1285 | \r |
c4671a67 | 1286 | //\r |
1287 | // Clear the data structure area first.\r | |
1288 | //\r | |
1289 | ZeroMem (&gMPSystem, sizeof (MP_SYSTEM_DATA));\r | |
1290 | \r | |
1291 | //\r | |
1292 | // First BSP fills and inits all known values, including it's own records.\r | |
1293 | //\r | |
1294 | gMPSystem.NumberOfProcessors = NumberOfProcessors;\r | |
1295 | gMPSystem.NumberOfEnabledProcessors = NumberOfProcessors;\r | |
d18d8a1d | 1296 | \r |
c4671a67 | 1297 | gMPSystem.ProcessorData = AllocateZeroPool (gMPSystem.NumberOfProcessors * sizeof (PROCESSOR_DATA_BLOCK));\r |
1298 | ASSERT (gMPSystem.ProcessorData != NULL);\r | |
1299 | \r | |
1300 | FillInProcessorInformation (TRUE, 0);\r | |
d18d8a1d | 1301 | \r |
c4671a67 | 1302 | Status = gBS->CreateEvent (\r |
1303 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1304 | TPL_CALLBACK,\r | |
1305 | CpuCheckAllAPsStatus,\r | |
1306 | NULL,\r | |
1307 | &gMPSystem.CheckAllAPsEvent\r | |
1308 | );\r | |
1309 | ASSERT_EFI_ERROR (Status);\r | |
d18d8a1d | 1310 | \r |
c4671a67 | 1311 | \r |
1312 | for (Index = 0; Index < gMPSystem.NumberOfProcessors; Index++) {\r | |
1313 | if ((gMPSystem.ProcessorData[Index].Info.StatusFlag & PROCESSOR_AS_BSP_BIT) == PROCESSOR_AS_BSP_BIT) {\r | |
1314 | // Skip BSP\r | |
1315 | continue;\r | |
1316 | }\r | |
d18d8a1d | 1317 | \r |
c4671a67 | 1318 | FillInProcessorInformation (FALSE, Index);\r |
d18d8a1d | 1319 | \r |
10d1be3e | 1320 | Status = gThread->CreateThread (\r |
d18d8a1d | 1321 | (VOID *)&gMPSystem.ProcessorData[Index].Info.ProcessorId,\r |
c4671a67 | 1322 | NULL,\r |
1323 | CpuDriverApIdolLoop,\r | |
1324 | (VOID *)Index\r | |
1325 | );\r | |
d18d8a1d | 1326 | \r |
1327 | \r | |
c4671a67 | 1328 | Status = gBS->CreateEvent (\r |
1329 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
1330 | TPL_CALLBACK,\r | |
1331 | CpuCheckThisAPStatus,\r | |
1332 | (VOID *) &gMPSystem.ProcessorData[Index],\r | |
1333 | &gMPSystem.ProcessorData[Index].CheckThisAPEvent\r | |
1334 | );\r | |
1335 | }\r | |
1336 | \r | |
1337 | return EFI_SUCCESS;\r | |
1338 | }\r | |
1339 | \r | |
1340 | \r | |
1341 | \r | |
1342 | /**\r | |
1343 | Invoke a notification event\r | |
1344 | \r | |
1345 | @param Event Event whose notification function is being invoked.\r | |
1346 | @param Context The pointer to the notification function's context,\r | |
1347 | which is implementation-dependent.\r | |
1348 | \r | |
1349 | **/\r | |
1350 | VOID\r | |
1351 | EFIAPI\r | |
1352 | CpuReadToBootFunction (\r | |
1353 | IN EFI_EVENT Event,\r | |
1354 | IN VOID *Context\r | |
1355 | )\r | |
1356 | {\r | |
1357 | gReadToBoot = TRUE;\r | |
1358 | }\r | |
1359 | \r | |
1360 | \r | |
1361 | \r | |
1362 | EFI_STATUS\r | |
1363 | CpuMpServicesInit (\r | |
a0af6b27 | 1364 | OUT UINTN *MaxCpus\r |
c4671a67 | 1365 | )\r |
1366 | {\r | |
1367 | EFI_STATUS Status;\r | |
1368 | EFI_HANDLE Handle;\r | |
1369 | EMU_IO_THUNK_PROTOCOL *IoThunk;\r | |
d18d8a1d | 1370 | \r |
a0af6b27 | 1371 | *MaxCpus = 1; // BSP\r |
10d1be3e | 1372 | IoThunk = GetIoThunkInstance (&gEmuThreadThunkProtocolGuid, 0);\r |
c4671a67 | 1373 | if (IoThunk != NULL) {\r |
1374 | Status = IoThunk->Open (IoThunk);\r | |
1375 | if (!EFI_ERROR (Status)) {\r | |
1376 | if (IoThunk->ConfigString != NULL) {\r | |
a0af6b27 | 1377 | *MaxCpus += StrDecimalToUintn (IoThunk->ConfigString);\r |
10d1be3e | 1378 | gThread = IoThunk->Interface;\r |
c4671a67 | 1379 | }\r |
1380 | }\r | |
1381 | }\r | |
1382 | \r | |
a0af6b27 | 1383 | if (*MaxCpus == 1) {\r |
c4671a67 | 1384 | // We are not MP so nothing to do\r |
1385 | return EFI_SUCCESS;\r | |
1386 | }\r | |
1387 | \r | |
e148512e | 1388 | gPollInterval = (UINTN) PcdGet64 (PcdEmuMpServicesPollingInterval);\r |
c4671a67 | 1389 | \r |
a0af6b27 | 1390 | Status = InitializeMpSystemData (*MaxCpus);\r |
c4671a67 | 1391 | if (EFI_ERROR (Status)) {\r |
1392 | return Status;\r | |
1393 | }\r | |
1394 | \r | |
1395 | Status = EfiCreateEventReadyToBootEx (TPL_CALLBACK, CpuReadToBootFunction, NULL, &gReadToBootEvent);\r | |
1396 | ASSERT_EFI_ERROR (Status);\r | |
1397 | \r | |
1398 | //\r | |
1399 | // Now install the MP services protocol.\r | |
1400 | //\r | |
1401 | Handle = NULL;\r | |
1402 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1403 | &Handle,\r | |
d070eef8 | 1404 | &gEfiMpServiceProtocolGuid, &mMpServicesTemplate,\r |
c4671a67 | 1405 | NULL\r |
1406 | );\r | |
1407 | return Status;\r | |
1408 | }\r | |
1409 | \r | |
1410 | \r |