projects / mirror_edk2.git / blame
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| 6022e28c JJ |
1 | /** @file\r |
| 2 | CPU DXE Module.\r | |
| 3 | \r | |
| db61e163 | 4 | Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>\r |
| 6022e28c JJ |
5 | This program and the accompanying materials\r |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 7 | which accompanies this distribution. The full text of the license may be found at\r | |
| 8 | http://opensource.org/licenses/bsd-license.php\r | |
| 9 | \r | |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 12 | \r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #include "CpuDxe.h"\r | |
| 16 | #include "CpuMp.h"\r | |
| 17 | \r | |
| 6a26a597 CF |
18 | UINTN gMaxLogicalProcessorNumber;\r |
| 19 | UINTN gApStackSize;\r | |
| 3f4f0af8 | 20 | UINTN gPollInterval = 100; // 100 microseconds\r |
| 6a26a597 | 21 | \r |
| 03673ae1 | 22 | MP_SYSTEM_DATA mMpSystemData;\r |
| 9840b129 CF |
23 | EFI_HANDLE mMpServiceHandle = NULL;\r |
| 24 | EFI_EVENT mExitBootServicesEvent = (EFI_EVENT)NULL;\r | |
| 03673ae1 | 25 | \r |
| fab82c18 JJ |
26 | VOID *mCommonStack = 0;\r |
| 27 | VOID *mTopOfApCommonStack = 0;\r | |
| 6a26a597 | 28 | VOID *mApStackStart = 0;\r |
| fab82c18 | 29 | \r |
| 232eb4c8 | 30 | volatile BOOLEAN mAPsAlreadyInitFinished = FALSE;\r |
| acb2172d CF |
31 | volatile BOOLEAN mStopCheckAllAPsStatus = TRUE;\r |
| 32 | \r | |
| 003973d9 | 33 | EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {\r |
| d894d8b7 | 34 | GetNumberOfProcessors,\r |
| e7938b5a | 35 | GetProcessorInfo,\r |
| 5fee172f | 36 | StartupAllAPs,\r |
| 3f4f0af8 | 37 | StartupThisAP,\r |
| b7c05ba5 | 38 | SwitchBSP,\r |
| fa7ce675 | 39 | EnableDisableAP,\r |
| cfa2fac1 | 40 | WhoAmI\r |
| 003973d9 CF |
41 | };\r |
| 42 | \r | |
| d16cf36d CF |
43 | /**\r |
| 44 | Get Mp Service Lock.\r | |
| 45 | \r | |
| 46 | @param CpuData the pointer to CPU_DATA_BLOCK of specified processor\r | |
| 47 | \r | |
| 48 | **/\r | |
| 49 | VOID\r | |
| 50 | GetMpSpinLock (\r | |
| 51 | IN CPU_DATA_BLOCK *CpuData\r | |
| 52 | )\r | |
| 53 | {\r | |
| 54 | while (!AcquireSpinLockOrFail (&CpuData->CpuDataLock)) {\r | |
| 55 | CpuPause ();\r | |
| 56 | }\r | |
| 0e724fc1 | 57 | CpuData->LockSelf = GetApicId ();\r |
| d16cf36d CF |
58 | }\r |
| 59 | \r | |
| 60 | /**\r | |
| 61 | Release Mp Service Lock.\r | |
| 62 | \r | |
| 63 | @param CpuData the pointer to CPU_DATA_BLOCK of specified processor\r | |
| 64 | \r | |
| 65 | **/\r | |
| 66 | VOID\r | |
| 67 | ReleaseMpSpinLock (\r | |
| 68 | IN CPU_DATA_BLOCK *CpuData\r | |
| 69 | )\r | |
| 70 | {\r | |
| 71 | ReleaseSpinLock (&CpuData->CpuDataLock);\r | |
| 72 | }\r | |
| 73 | \r | |
| d894d8b7 CF |
74 | /**\r |
| 75 | Check whether caller processor is BSP.\r | |
| 76 | \r | |
| 77 | @retval TRUE the caller is BSP\r | |
| 78 | @retval FALSE the caller is AP\r | |
| 79 | \r | |
| 80 | **/\r | |
| 81 | BOOLEAN\r | |
| 82 | IsBSP (\r | |
| 83 | VOID\r | |
| 84 | )\r | |
| 85 | {\r | |
| 86 | UINTN CpuIndex;\r | |
| 87 | CPU_DATA_BLOCK *CpuData;\r | |
| 88 | \r | |
| 89 | CpuData = NULL;\r | |
| 90 | \r | |
| 91 | WhoAmI (&mMpServicesTemplate, &CpuIndex);\r | |
| 92 | CpuData = &mMpSystemData.CpuDatas[CpuIndex];\r | |
| 93 | \r | |
| 94 | return CpuData->Info.StatusFlag & PROCESSOR_AS_BSP_BIT ? TRUE : FALSE;\r | |
| 95 | }\r | |
| 96 | \r | |
| fa7ce675 CF |
97 | /**\r |
| 98 | Get the Application Processors state.\r | |
| 99 | \r | |
| 100 | @param CpuData the pointer to CPU_DATA_BLOCK of specified AP\r | |
| 101 | \r | |
| 102 | @retval CPU_STATE the AP status\r | |
| 103 | \r | |
| 104 | **/\r | |
| 105 | CPU_STATE\r | |
| 106 | GetApState (\r | |
| 107 | IN CPU_DATA_BLOCK *CpuData\r | |
| 108 | )\r | |
| 109 | {\r | |
| 110 | CPU_STATE State;\r | |
| 111 | \r | |
| d16cf36d | 112 | GetMpSpinLock (CpuData);\r |
| fa7ce675 | 113 | State = CpuData->State;\r |
| d16cf36d | 114 | ReleaseMpSpinLock (CpuData);\r |
| fa7ce675 CF |
115 | \r |
| 116 | return State;\r | |
| 117 | }\r | |
| 118 | \r | |
| 3f4f0af8 CF |
119 | /**\r |
| 120 | Set the Application Processors state.\r | |
| 121 | \r | |
| 122 | @param CpuData The pointer to CPU_DATA_BLOCK of specified AP\r | |
| 123 | @param State The AP status\r | |
| 124 | \r | |
| 125 | **/\r | |
| 126 | VOID\r | |
| 127 | SetApState (\r | |
| 128 | IN CPU_DATA_BLOCK *CpuData,\r | |
| 129 | IN CPU_STATE State\r | |
| 130 | )\r | |
| 131 | {\r | |
| d16cf36d | 132 | GetMpSpinLock (CpuData);\r |
| 3f4f0af8 | 133 | CpuData->State = State;\r |
| d16cf36d | 134 | ReleaseMpSpinLock (CpuData);\r |
| 3f4f0af8 CF |
135 | }\r |
| 136 | \r | |
| 137 | /**\r | |
| 138 | Set the Application Processor prepare to run a function specified\r | |
| 139 | by Params.\r | |
| 140 | \r | |
| 141 | @param CpuData the pointer to CPU_DATA_BLOCK of specified AP\r | |
| 142 | @param Procedure A pointer to the function to be run on enabled APs of the system\r | |
| 143 | @param ProcedureArgument Pointer to the optional parameter of the assigned function\r | |
| 144 | \r | |
| 145 | **/\r | |
| 146 | VOID\r | |
| 147 | SetApProcedure (\r | |
| 148 | IN CPU_DATA_BLOCK *CpuData,\r | |
| 149 | IN EFI_AP_PROCEDURE Procedure,\r | |
| 150 | IN VOID *ProcedureArgument\r | |
| 151 | )\r | |
| 152 | {\r | |
| d16cf36d | 153 | GetMpSpinLock (CpuData);\r |
| 3f4f0af8 CF |
154 | CpuData->Parameter = ProcedureArgument;\r |
| 155 | CpuData->Procedure = Procedure;\r | |
| d16cf36d | 156 | ReleaseMpSpinLock (CpuData);\r |
| 3f4f0af8 CF |
157 | }\r |
| 158 | \r | |
| fa7ce675 CF |
159 | /**\r |
| 160 | Check the Application Processors Status whether contains the Flags.\r | |
| 161 | \r | |
| 162 | @param CpuData the pointer to CPU_DATA_BLOCK of specified AP\r | |
| 163 | @param Flags the StatusFlag describing in EFI_PROCESSOR_INFORMATION\r | |
| 164 | \r | |
| 165 | @retval TRUE the AP status includes the StatusFlag\r | |
| 166 | @retval FALSE the AP status excludes the StatusFlag\r | |
| 167 | \r | |
| 168 | **/\r | |
| 169 | BOOLEAN\r | |
| 170 | TestCpuStatusFlag (\r | |
| 171 | IN CPU_DATA_BLOCK *CpuData,\r | |
| 172 | IN UINT32 Flags\r | |
| 173 | )\r | |
| 174 | {\r | |
| 175 | UINT32 Ret;\r | |
| 176 | \r | |
| d16cf36d | 177 | GetMpSpinLock (CpuData);\r |
| fa7ce675 | 178 | Ret = CpuData->Info.StatusFlag & Flags;\r |
| d16cf36d | 179 | ReleaseMpSpinLock (CpuData);\r |
| fa7ce675 | 180 | \r |
| 7475d138 | 181 | return (BOOLEAN) (Ret != 0);\r |
| fa7ce675 CF |
182 | }\r |
| 183 | \r | |
| 184 | /**\r | |
| 185 | Bitwise-Or of the Application Processors Status with the Flags.\r | |
| 186 | \r | |
| 187 | @param CpuData the pointer to CPU_DATA_BLOCK of specified AP\r | |
| 188 | @param Flags the StatusFlag describing in EFI_PROCESSOR_INFORMATION\r | |
| 189 | \r | |
| 190 | **/\r | |
| 191 | VOID\r | |
| 192 | CpuStatusFlagOr (\r | |
| 193 | IN CPU_DATA_BLOCK *CpuData,\r | |
| 194 | IN UINT32 Flags\r | |
| 195 | )\r | |
| 196 | {\r | |
| d16cf36d | 197 | GetMpSpinLock (CpuData);\r |
| fa7ce675 | 198 | CpuData->Info.StatusFlag |= Flags;\r |
| d16cf36d | 199 | ReleaseMpSpinLock (CpuData);\r |
| fa7ce675 CF |
200 | }\r |
| 201 | \r | |
| 202 | /**\r | |
| 203 | Bitwise-AndNot of the Application Processors Status with the Flags.\r | |
| 204 | \r | |
| 205 | @param CpuData the pointer to CPU_DATA_BLOCK of specified AP\r | |
| 206 | @param Flags the StatusFlag describing in EFI_PROCESSOR_INFORMATION\r | |
| 207 | \r | |
| 208 | **/\r | |
| 209 | VOID\r | |
| 210 | CpuStatusFlagAndNot (\r | |
| 211 | IN CPU_DATA_BLOCK *CpuData,\r | |
| 212 | IN UINT32 Flags\r | |
| 213 | )\r | |
| 214 | {\r | |
| d16cf36d | 215 | GetMpSpinLock (CpuData);\r |
| fa7ce675 | 216 | CpuData->Info.StatusFlag &= ~Flags;\r |
| d16cf36d | 217 | ReleaseMpSpinLock (CpuData);\r |
| fa7ce675 CF |
218 | }\r |
| 219 | \r | |
| 3f4f0af8 CF |
220 | /**\r |
| 221 | Searches for the next blocking AP.\r | |
| 222 | \r | |
| 223 | Search for the next AP that is put in blocking state by single-threaded StartupAllAPs().\r | |
| 224 | \r | |
| 225 | @param NextNumber Pointer to the processor number of the next blocking AP.\r | |
| 226 | \r | |
| 227 | @retval EFI_SUCCESS The next blocking AP has been found.\r | |
| 228 | @retval EFI_NOT_FOUND No blocking AP exists.\r | |
| 229 | \r | |
| 230 | **/\r | |
| 231 | EFI_STATUS\r | |
| 232 | GetNextBlockedNumber (\r | |
| 233 | OUT UINTN *NextNumber\r | |
| 234 | )\r | |
| 235 | {\r | |
| 236 | UINTN Number;\r | |
| 237 | CPU_STATE CpuState;\r | |
| 238 | CPU_DATA_BLOCK *CpuData;\r | |
| 239 | \r | |
| 240 | for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {\r | |
| 241 | CpuData = &mMpSystemData.CpuDatas[Number];\r | |
| 242 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 243 | //\r | |
| 244 | // Skip BSP\r | |
| 245 | //\r | |
| 246 | continue;\r | |
| 247 | }\r | |
| 248 | \r | |
| 249 | CpuState = GetApState (CpuData);\r | |
| 250 | if (CpuState == CpuStateBlocked) {\r | |
| 251 | *NextNumber = Number;\r | |
| 252 | return EFI_SUCCESS;\r | |
| 253 | }\r | |
| 254 | }\r | |
| 255 | \r | |
| 256 | return EFI_NOT_FOUND;\r | |
| 257 | }\r | |
| 258 | \r | |
| 5fee172f CF |
259 | /**\r |
| 260 | Check if the APs state are finished, and update them to idle state\r | |
| 261 | by StartupAllAPs().\r | |
| 262 | \r | |
| 263 | **/\r | |
| 264 | VOID\r | |
| 265 | CheckAndUpdateAllAPsToIdleState (\r | |
| 266 | VOID\r | |
| 267 | )\r | |
| 268 | {\r | |
| 269 | UINTN ProcessorNumber;\r | |
| 270 | UINTN NextNumber;\r | |
| 271 | CPU_DATA_BLOCK *CpuData;\r | |
| 272 | EFI_STATUS Status;\r | |
| 273 | CPU_STATE CpuState;\r | |
| 274 | \r | |
| 275 | for (ProcessorNumber = 0; ProcessorNumber < mMpSystemData.NumberOfProcessors; ProcessorNumber++) {\r | |
| 276 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r | |
| 277 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 278 | //\r | |
| 279 | // Skip BSP\r | |
| 280 | //\r | |
| 281 | continue;\r | |
| 282 | }\r | |
| 283 | \r | |
| 284 | if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 285 | //\r | |
| 286 | // Skip Disabled processors\r | |
| 287 | //\r | |
| 288 | continue;\r | |
| 289 | }\r | |
| 290 | \r | |
| 291 | CpuState = GetApState (CpuData);\r | |
| 292 | if (CpuState == CpuStateFinished) {\r | |
| 293 | mMpSystemData.FinishCount++;\r | |
| 294 | if (mMpSystemData.SingleThread) {\r | |
| 295 | Status = GetNextBlockedNumber (&NextNumber);\r | |
| 296 | if (!EFI_ERROR (Status)) {\r | |
| 297 | SetApState (&mMpSystemData.CpuDatas[NextNumber], CpuStateReady);\r | |
| 298 | SetApProcedure (&mMpSystemData.CpuDatas[NextNumber],\r | |
| 299 | mMpSystemData.Procedure,\r | |
| 300 | mMpSystemData.ProcedureArgument);\r | |
| 68f06742 CF |
301 | //\r |
| 302 | // If this AP previous state is blocked, we should\r | |
| 303 | // wake up this AP by sent a SIPI. and avoid\r | |
| 304 | // re-involve the sleeping state. we must call\r | |
| 305 | // SetApProcedure() first.\r | |
| 306 | //\r | |
| 307 | ResetProcessorToIdleState (&mMpSystemData.CpuDatas[NextNumber]);\r | |
| 5fee172f CF |
308 | }\r |
| 309 | }\r | |
| 5fee172f CF |
310 | SetApState (CpuData, CpuStateIdle);\r |
| 311 | }\r | |
| 312 | }\r | |
| 313 | }\r | |
| 314 | \r | |
| 1aa6bf52 MK |
315 | /**\r |
| 316 | Check if all APs are in state CpuStateSleeping.\r | |
| 317 | \r | |
| 318 | Return TRUE if all APs are in the CpuStateSleeping state. Do not\r | |
| 319 | check the state of the BSP or any disabled APs.\r | |
| 320 | \r | |
| 321 | @retval TRUE All APs are in CpuStateSleeping state.\r | |
| 322 | @retval FALSE One or more APs are not in CpuStateSleeping state.\r | |
| 323 | \r | |
| 324 | **/\r | |
| 325 | BOOLEAN\r | |
| 326 | CheckAllAPsSleeping (\r | |
| 327 | VOID\r | |
| 328 | )\r | |
| 329 | {\r | |
| 330 | UINTN ProcessorNumber;\r | |
| 331 | CPU_DATA_BLOCK *CpuData;\r | |
| 332 | \r | |
| 333 | for (ProcessorNumber = 0; ProcessorNumber < mMpSystemData.NumberOfProcessors; ProcessorNumber++) {\r | |
| 334 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r | |
| 335 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 336 | //\r | |
| 337 | // Skip BSP\r | |
| 338 | //\r | |
| 339 | continue;\r | |
| 340 | }\r | |
| 341 | \r | |
| 342 | if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 343 | //\r | |
| 344 | // Skip Disabled processors\r | |
| 345 | //\r | |
| 346 | continue;\r | |
| 347 | }\r | |
| 348 | \r | |
| 349 | if (GetApState (CpuData) != CpuStateSleeping) {\r | |
| 350 | return FALSE;\r | |
| 351 | }\r | |
| 352 | }\r | |
| 353 | return TRUE;\r | |
| 354 | }\r | |
| 355 | \r | |
| 5fee172f CF |
356 | /**\r |
| 357 | If the timeout expires before all APs returns from Procedure,\r | |
| 358 | we should forcibly terminate the executing AP and fill FailedList back\r | |
| 359 | by StartupAllAPs().\r | |
| 360 | \r | |
| 361 | **/\r | |
| 362 | VOID\r | |
| 363 | ResetAllFailedAPs (\r | |
| 364 | VOID\r | |
| 365 | )\r | |
| 366 | {\r | |
| 367 | CPU_DATA_BLOCK *CpuData;\r | |
| 368 | UINTN Number;\r | |
| 369 | CPU_STATE CpuState;\r | |
| 370 | \r | |
| 371 | if (mMpSystemData.FailedList != NULL) {\r | |
| 372 | *mMpSystemData.FailedList = AllocatePool ((mMpSystemData.StartCount - mMpSystemData.FinishCount + 1) * sizeof(UINTN));\r | |
| 373 | ASSERT (*mMpSystemData.FailedList != NULL);\r | |
| 374 | }\r | |
| 375 | \r | |
| 376 | for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {\r | |
| 377 | CpuData = &mMpSystemData.CpuDatas[Number];\r | |
| 378 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 379 | //\r | |
| 380 | // Skip BSP\r | |
| 381 | //\r | |
| 382 | continue;\r | |
| 383 | }\r | |
| 384 | \r | |
| 385 | if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 386 | //\r | |
| 387 | // Skip Disabled processors\r | |
| 388 | //\r | |
| 389 | continue;\r | |
| 390 | }\r | |
| 391 | \r | |
| 392 | CpuState = GetApState (CpuData);\r | |
| 68f06742 CF |
393 | if (CpuState != CpuStateIdle &&\r |
| 394 | CpuState != CpuStateSleeping) {\r | |
| 5fee172f CF |
395 | if (mMpSystemData.FailedList != NULL) {\r |
| 396 | (*mMpSystemData.FailedList)[mMpSystemData.FailedListIndex++] = Number;\r | |
| 397 | }\r | |
| 398 | ResetProcessorToIdleState (CpuData);\r | |
| 399 | }\r | |
| 400 | }\r | |
| 401 | \r | |
| 402 | if (mMpSystemData.FailedList != NULL) {\r | |
| 403 | (*mMpSystemData.FailedList)[mMpSystemData.FailedListIndex] = END_OF_CPU_LIST;\r | |
| 404 | }\r | |
| 405 | }\r | |
| 406 | \r | |
| d894d8b7 CF |
407 | /**\r |
| 408 | This service retrieves the number of logical processor in the platform\r | |
| 409 | and the number of those logical processors that are enabled on this boot.\r | |
| 410 | This service may only be called from the BSP.\r | |
| 411 | \r | |
| 412 | This function is used to retrieve the following information:\r | |
| 413 | - The number of logical processors that are present in the system.\r | |
| 414 | - The number of enabled logical processors in the system at the instant\r | |
| 415 | this call is made.\r | |
| 416 | \r | |
| 417 | Because MP Service Protocol provides services to enable and disable processors\r | |
| 418 | dynamically, the number of enabled logical processors may vary during the\r | |
| 419 | course of a boot session.\r | |
| 420 | \r | |
| 421 | If this service is called from an AP, then EFI_DEVICE_ERROR is returned.\r | |
| 422 | If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then\r | |
| 423 | EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors\r | |
| 424 | is returned in NumberOfProcessors, the number of currently enabled processor\r | |
| 425 | is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.\r | |
| 426 | \r | |
| 427 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
| 428 | instance.\r | |
| 429 | @param[out] NumberOfProcessors Pointer to the total number of logical\r | |
| 430 | processors in the system, including the BSP\r | |
| 431 | and disabled APs.\r | |
| 432 | @param[out] NumberOfEnabledProcessors Pointer to the number of enabled logical\r | |
| 433 | processors that exist in system, including\r | |
| 434 | the BSP.\r | |
| 435 | \r | |
| 436 | @retval EFI_SUCCESS The number of logical processors and enabled\r | |
| 437 | logical processors was retrieved.\r | |
| 438 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
| 439 | @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.\r | |
| 440 | @retval EFI_INVALID_PARAMETER NumberOfEnabledProcessors is NULL.\r | |
| 441 | \r | |
| 442 | **/\r | |
| 443 | EFI_STATUS\r | |
| 444 | EFIAPI\r | |
| 445 | GetNumberOfProcessors (\r | |
| 446 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 447 | OUT UINTN *NumberOfProcessors,\r | |
| 448 | OUT UINTN *NumberOfEnabledProcessors\r | |
| 449 | )\r | |
| 450 | {\r | |
| 451 | if ((NumberOfProcessors == NULL) || (NumberOfEnabledProcessors == NULL)) {\r | |
| 452 | return EFI_INVALID_PARAMETER;\r | |
| 453 | }\r | |
| 454 | \r | |
| 455 | if (!IsBSP ()) {\r | |
| 456 | return EFI_DEVICE_ERROR;\r | |
| 457 | }\r | |
| 458 | \r | |
| 459 | *NumberOfProcessors = mMpSystemData.NumberOfProcessors;\r | |
| 460 | *NumberOfEnabledProcessors = mMpSystemData.NumberOfEnabledProcessors;\r | |
| 461 | return EFI_SUCCESS;\r | |
| 462 | }\r | |
| 463 | \r | |
| e7938b5a CF |
464 | /**\r |
| 465 | Gets detailed MP-related information on the requested processor at the\r | |
| 466 | instant this call is made. This service may only be called from the BSP.\r | |
| 467 | \r | |
| 468 | This service retrieves detailed MP-related information about any processor\r | |
| 469 | on the platform. Note the following:\r | |
| 470 | - The processor information may change during the course of a boot session.\r | |
| 471 | - The information presented here is entirely MP related.\r | |
| 472 | \r | |
| 473 | Information regarding the number of caches and their sizes, frequency of operation,\r | |
| 474 | slot numbers is all considered platform-related information and is not provided\r | |
| 475 | by this service.\r | |
| 476 | \r | |
| 477 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
| 478 | instance.\r | |
| 479 | @param[in] ProcessorNumber The handle number of processor.\r | |
| 480 | @param[out] ProcessorInfoBuffer A pointer to the buffer where information for\r | |
| 481 | the requested processor is deposited.\r | |
| 482 | \r | |
| 483 | @retval EFI_SUCCESS Processor information was returned.\r | |
| 484 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
| 485 | @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.\r | |
| 486 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
| 487 | ProcessorNumber does not exist in the platform.\r | |
| 488 | \r | |
| 489 | **/\r | |
| 490 | EFI_STATUS\r | |
| 491 | EFIAPI\r | |
| 492 | GetProcessorInfo (\r | |
| 493 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 494 | IN UINTN ProcessorNumber,\r | |
| 495 | OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer\r | |
| 496 | )\r | |
| 497 | {\r | |
| 498 | if (ProcessorInfoBuffer == NULL) {\r | |
| 499 | return EFI_INVALID_PARAMETER;\r | |
| 500 | }\r | |
| 501 | \r | |
| 502 | if (!IsBSP ()) {\r | |
| 503 | return EFI_DEVICE_ERROR;\r | |
| 504 | }\r | |
| 505 | \r | |
| 506 | if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {\r | |
| 507 | return EFI_NOT_FOUND;\r | |
| 508 | }\r | |
| 509 | \r | |
| 510 | CopyMem (ProcessorInfoBuffer, &mMpSystemData.CpuDatas[ProcessorNumber], sizeof (EFI_PROCESSOR_INFORMATION));\r | |
| 511 | return EFI_SUCCESS;\r | |
| 512 | }\r | |
| 513 | \r | |
| 5fee172f CF |
514 | /**\r |
| 515 | This service executes a caller provided function on all enabled APs. APs can\r | |
| 516 | run either simultaneously or one at a time in sequence. This service supports\r | |
| 517 | both blocking and non-blocking requests. The non-blocking requests use EFI\r | |
| 518 | events so the BSP can detect when the APs have finished. This service may only\r | |
| 519 | be called from the BSP.\r | |
| 520 | \r | |
| 521 | This function is used to dispatch all the enabled APs to the function specified\r | |
| 522 | by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned\r | |
| 523 | immediately and Procedure is not started on any AP.\r | |
| 524 | \r | |
| 525 | If SingleThread is TRUE, all the enabled APs execute the function specified by\r | |
| 526 | Procedure one by one, in ascending order of processor handle number. Otherwise,\r | |
| 527 | all the enabled APs execute the function specified by Procedure simultaneously.\r | |
| 528 | \r | |
| 529 | If WaitEvent is NULL, execution is in blocking mode. The BSP waits until all\r | |
| 530 | APs finish or TimeoutInMicroseconds expires. Otherwise, execution is in non-blocking\r | |
| 531 | mode, and the BSP returns from this service without waiting for APs. If a\r | |
| 532 | non-blocking mode is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
| 533 | is signaled, then EFI_UNSUPPORTED must be returned.\r | |
| 534 | \r | |
| 535 | If the timeout specified by TimeoutInMicroseconds expires before all APs return\r | |
| 536 | from Procedure, then Procedure on the failed APs is terminated. All enabled APs\r | |
| 537 | are always available for further calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
| 538 | and EFI_MP_SERVICES_PROTOCOL.StartupThisAP(). If FailedCpuList is not NULL, its\r | |
| 539 | content points to the list of processor handle numbers in which Procedure was\r | |
| 540 | terminated.\r | |
| 541 | \r | |
| 542 | Note: It is the responsibility of the consumer of the EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
| 543 | to make sure that the nature of the code that is executed on the BSP and the\r | |
| 544 | dispatched APs is well controlled. The MP Services Protocol does not guarantee\r | |
| 545 | that the Procedure function is MP-safe. Hence, the tasks that can be run in\r | |
| 546 | parallel are limited to certain independent tasks and well-controlled exclusive\r | |
| 547 | code. EFI services and protocols may not be called by APs unless otherwise\r | |
| 548 | specified.\r | |
| 549 | \r | |
| 550 | In blocking execution mode, BSP waits until all APs finish or\r | |
| 551 | TimeoutInMicroseconds expires.\r | |
| 552 | \r | |
| 553 | In non-blocking execution mode, BSP is freed to return to the caller and then\r | |
| 554 | proceed to the next task without having to wait for APs. The following\r | |
| 555 | sequence needs to occur in a non-blocking execution mode:\r | |
| 556 | \r | |
| 557 | -# The caller that intends to use this MP Services Protocol in non-blocking\r | |
| 558 | mode creates WaitEvent by calling the EFI CreateEvent() service. The caller\r | |
| 559 | invokes EFI_MP_SERVICES_PROTOCOL.StartupAllAPs(). If the parameter WaitEvent\r | |
| 560 | is not NULL, then StartupAllAPs() executes in non-blocking mode. It requests\r | |
| 561 | the function specified by Procedure to be started on all the enabled APs,\r | |
| 562 | and releases the BSP to continue with other tasks.\r | |
| 563 | -# The caller can use the CheckEvent() and WaitForEvent() services to check\r | |
| 564 | the state of the WaitEvent created in step 1.\r | |
| 565 | -# When the APs complete their task or TimeoutInMicroSecondss expires, the MP\r | |
| 566 | Service signals WaitEvent by calling the EFI SignalEvent() function. If\r | |
| 567 | FailedCpuList is not NULL, its content is available when WaitEvent is\r | |
| 568 | signaled. If all APs returned from Procedure prior to the timeout, then\r | |
| 569 | FailedCpuList is set to NULL. If not all APs return from Procedure before\r | |
| 570 | the timeout, then FailedCpuList is filled in with the list of the failed\r | |
| 571 | APs. The buffer is allocated by MP Service Protocol using AllocatePool().\r | |
| 572 | It is the caller's responsibility to free the buffer with FreePool() service.\r | |
| 573 | -# This invocation of SignalEvent() function informs the caller that invoked\r | |
| 574 | EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() that either all the APs completed\r | |
| 575 | the specified task or a timeout occurred. The contents of FailedCpuList\r | |
| 576 | can be examined to determine which APs did not complete the specified task\r | |
| 577 | prior to the timeout.\r | |
| 578 | \r | |
| 579 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
| 580 | instance.\r | |
| 581 | @param[in] Procedure A pointer to the function to be run on\r | |
| 582 | enabled APs of the system. See type\r | |
| 583 | EFI_AP_PROCEDURE.\r | |
| 584 | @param[in] SingleThread If TRUE, then all the enabled APs execute\r | |
| 585 | the function specified by Procedure one by\r | |
| 586 | one, in ascending order of processor handle\r | |
| 587 | number. If FALSE, then all the enabled APs\r | |
| 588 | execute the function specified by Procedure\r | |
| 589 | simultaneously.\r | |
| 590 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
| 591 | service. If it is NULL, then execute in\r | |
| 592 | blocking mode. BSP waits until all APs finish\r | |
| 593 | or TimeoutInMicroseconds expires. If it's\r | |
| 594 | not NULL, then execute in non-blocking mode.\r | |
| 595 | BSP requests the function specified by\r | |
| 596 | Procedure to be started on all the enabled\r | |
| 597 | APs, and go on executing immediately. If\r | |
| 598 | all return from Procedure, or TimeoutInMicroseconds\r | |
| 599 | expires, this event is signaled. The BSP\r | |
| 600 | can use the CheckEvent() or WaitForEvent()\r | |
| 601 | services to check the state of event. Type\r | |
| 602 | EFI_EVENT is defined in CreateEvent() in\r | |
| 603 | the Unified Extensible Firmware Interface\r | |
| 604 | Specification.\r | |
| 605 | @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for\r | |
| 606 | APs to return from Procedure, either for\r | |
| 607 | blocking or non-blocking mode. Zero means\r | |
| 608 | infinity. If the timeout expires before\r | |
| 609 | all APs return from Procedure, then Procedure\r | |
| 610 | on the failed APs is terminated. All enabled\r | |
| 611 | APs are available for next function assigned\r | |
| 612 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
| 613 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r | |
| 614 | If the timeout expires in blocking mode,\r | |
| 615 | BSP returns EFI_TIMEOUT. If the timeout\r | |
| 616 | expires in non-blocking mode, WaitEvent\r | |
| 617 | is signaled with SignalEvent().\r | |
| 618 | @param[in] ProcedureArgument The parameter passed into Procedure for\r | |
| 619 | all APs.\r | |
| 620 | @param[out] FailedCpuList If NULL, this parameter is ignored. Otherwise,\r | |
| 621 | if all APs finish successfully, then its\r | |
| 622 | content is set to NULL. If not all APs\r | |
| 623 | finish before timeout expires, then its\r | |
| 624 | content is set to address of the buffer\r | |
| 625 | holding handle numbers of the failed APs.\r | |
| 626 | The buffer is allocated by MP Service Protocol,\r | |
| 627 | and it's the caller's responsibility to\r | |
| 628 | free the buffer with FreePool() service.\r | |
| 629 | In blocking mode, it is ready for consumption\r | |
| 630 | when the call returns. In non-blocking mode,\r | |
| 631 | it is ready when WaitEvent is signaled. The\r | |
| 632 | list of failed CPU is terminated by\r | |
| 633 | END_OF_CPU_LIST.\r | |
| 634 | \r | |
| 635 | @retval EFI_SUCCESS In blocking mode, all APs have finished before\r | |
| 636 | the timeout expired.\r | |
| 637 | @retval EFI_SUCCESS In non-blocking mode, function has been dispatched\r | |
| 638 | to all enabled APs.\r | |
| 639 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r | |
| 640 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
| 641 | signaled.\r | |
| 642 | @retval EFI_DEVICE_ERROR Caller processor is AP.\r | |
| 643 | @retval EFI_NOT_STARTED No enabled APs exist in the system.\r | |
| 644 | @retval EFI_NOT_READY Any enabled APs are busy.\r | |
| 645 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r | |
| 646 | all enabled APs have finished.\r | |
| 647 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
| 648 | \r | |
| 649 | **/\r | |
| 650 | EFI_STATUS\r | |
| 651 | EFIAPI\r | |
| 652 | StartupAllAPs (\r | |
| 653 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 654 | IN EFI_AP_PROCEDURE Procedure,\r | |
| 655 | IN BOOLEAN SingleThread,\r | |
| 656 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
| 657 | IN UINTN TimeoutInMicroseconds,\r | |
| 658 | IN VOID *ProcedureArgument OPTIONAL,\r | |
| 659 | OUT UINTN **FailedCpuList OPTIONAL\r | |
| 660 | )\r | |
| 661 | {\r | |
| 662 | EFI_STATUS Status;\r | |
| 663 | CPU_DATA_BLOCK *CpuData;\r | |
| 664 | UINTN Number;\r | |
| 665 | CPU_STATE APInitialState;\r | |
| 68f06742 | 666 | CPU_STATE CpuState;\r |
| 5fee172f CF |
667 | \r |
| 668 | CpuData = NULL;\r | |
| 669 | \r | |
| 670 | if (FailedCpuList != NULL) {\r | |
| 671 | *FailedCpuList = NULL;\r | |
| 672 | }\r | |
| 673 | \r | |
| 674 | if (!IsBSP ()) {\r | |
| 675 | return EFI_DEVICE_ERROR;\r | |
| 676 | }\r | |
| 677 | \r | |
| 678 | if (mMpSystemData.NumberOfProcessors == 1) {\r | |
| 679 | return EFI_NOT_STARTED;\r | |
| 680 | }\r | |
| 681 | \r | |
| 682 | if (Procedure == NULL) {\r | |
| 683 | return EFI_INVALID_PARAMETER;\r | |
| 684 | }\r | |
| 685 | \r | |
| cd8c700b CF |
686 | //\r |
| 687 | // temporarily stop checkAllAPsStatus for avoid resource dead-lock.\r | |
| 688 | //\r | |
| 689 | mStopCheckAllAPsStatus = TRUE;\r | |
| 690 | \r | |
| 5fee172f CF |
691 | for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {\r |
| 692 | CpuData = &mMpSystemData.CpuDatas[Number];\r | |
| 693 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 694 | //\r | |
| 695 | // Skip BSP\r | |
| 696 | //\r | |
| 697 | continue;\r | |
| 698 | }\r | |
| 699 | \r | |
| 700 | if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 701 | //\r | |
| 702 | // Skip Disabled processors\r | |
| 703 | //\r | |
| 704 | continue;\r | |
| 705 | }\r | |
| 706 | \r | |
| 68f06742 CF |
707 | CpuState = GetApState (CpuData);\r |
| 708 | if (CpuState != CpuStateIdle &&\r | |
| 709 | CpuState != CpuStateSleeping) {\r | |
| 5fee172f CF |
710 | return EFI_NOT_READY;\r |
| 711 | }\r | |
| 712 | }\r | |
| 713 | \r | |
| 714 | mMpSystemData.Procedure = Procedure;\r | |
| 715 | mMpSystemData.ProcedureArgument = ProcedureArgument;\r | |
| 716 | mMpSystemData.WaitEvent = WaitEvent;\r | |
| 717 | mMpSystemData.Timeout = TimeoutInMicroseconds;\r | |
| 7475d138 | 718 | mMpSystemData.TimeoutActive = (BOOLEAN) (TimeoutInMicroseconds != 0);\r |
| 5fee172f CF |
719 | mMpSystemData.FinishCount = 0;\r |
| 720 | mMpSystemData.StartCount = 0;\r | |
| 721 | mMpSystemData.SingleThread = SingleThread;\r | |
| 722 | mMpSystemData.FailedList = FailedCpuList;\r | |
| 723 | mMpSystemData.FailedListIndex = 0;\r | |
| 724 | APInitialState = CpuStateReady;\r | |
| 725 | \r | |
| 726 | for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {\r | |
| 727 | CpuData = &mMpSystemData.CpuDatas[Number];\r | |
| 728 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 729 | //\r | |
| 730 | // Skip BSP\r | |
| 731 | //\r | |
| 732 | continue;\r | |
| 733 | }\r | |
| 734 | \r | |
| 735 | if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 736 | //\r | |
| 737 | // Skip Disabled processors\r | |
| 738 | //\r | |
| 739 | continue;\r | |
| 740 | }\r | |
| 741 | \r | |
| 742 | //\r | |
| 743 | // Get APs prepared, and put failing APs into FailedCpuList\r | |
| 744 | // if "SingleThread", only 1 AP will put to ready state, other AP will be put to ready\r | |
| 745 | // state 1 by 1, until the previous 1 finished its task\r | |
| 746 | // if not "SingleThread", all APs are put to ready state from the beginning\r | |
| 747 | //\r | |
| 68f06742 CF |
748 | CpuState = GetApState (CpuData);\r |
| 749 | if (CpuState == CpuStateIdle ||\r | |
| 750 | CpuState == CpuStateSleeping) {\r | |
| 5fee172f CF |
751 | mMpSystemData.StartCount++;\r |
| 752 | \r | |
| 753 | SetApState (CpuData, APInitialState);\r | |
| 754 | \r | |
| 755 | if (APInitialState == CpuStateReady) {\r | |
| 756 | SetApProcedure (CpuData, Procedure, ProcedureArgument);\r | |
| 68f06742 CF |
757 | //\r |
| 758 | // If this AP previous state is Sleeping, we should\r | |
| 759 | // wake up this AP by sent a SIPI. and avoid\r | |
| 760 | // re-involve the sleeping state. we must call\r | |
| 761 | // SetApProcedure() first.\r | |
| 762 | //\r | |
| 763 | if (CpuState == CpuStateSleeping) {\r | |
| 764 | ResetProcessorToIdleState (CpuData);\r | |
| 765 | }\r | |
| 5fee172f CF |
766 | }\r |
| 767 | \r | |
| 768 | if (SingleThread) {\r | |
| 769 | APInitialState = CpuStateBlocked;\r | |
| 770 | }\r | |
| 771 | }\r | |
| 772 | }\r | |
| 773 | \r | |
| acb2172d CF |
774 | mStopCheckAllAPsStatus = FALSE;\r |
| 775 | \r | |
| 5fee172f | 776 | if (WaitEvent != NULL) {\r |
| acb2172d CF |
777 | //\r |
| 778 | // non blocking\r | |
| 779 | //\r | |
| 780 | return EFI_SUCCESS;\r | |
| 5fee172f CF |
781 | }\r |
| 782 | \r | |
| cd8c700b CF |
783 | //\r |
| 784 | // Blocking temporarily stop CheckAllAPsStatus()\r | |
| 785 | //\r | |
| 786 | mStopCheckAllAPsStatus = TRUE;\r | |
| 787 | \r | |
| 5fee172f CF |
788 | while (TRUE) {\r |
| 789 | CheckAndUpdateAllAPsToIdleState ();\r | |
| 790 | if (mMpSystemData.FinishCount == mMpSystemData.StartCount) {\r | |
| 791 | Status = EFI_SUCCESS;\r | |
| 792 | goto Done;\r | |
| 793 | }\r | |
| 794 | \r | |
| 795 | //\r | |
| 796 | // task timeout\r | |
| 797 | //\r | |
| 798 | if (mMpSystemData.TimeoutActive && mMpSystemData.Timeout < 0) {\r | |
| 799 | ResetAllFailedAPs();\r | |
| 800 | Status = EFI_TIMEOUT;\r | |
| 801 | goto Done;\r | |
| 802 | }\r | |
| 803 | \r | |
| 804 | gBS->Stall (gPollInterval);\r | |
| 805 | mMpSystemData.Timeout -= gPollInterval;\r | |
| 806 | }\r | |
| 807 | \r | |
| 808 | Done:\r | |
| 809 | \r | |
| 810 | return Status;\r | |
| 811 | }\r | |
| 812 | \r | |
| 3f4f0af8 CF |
813 | /**\r |
| 814 | This service lets the caller get one enabled AP to execute a caller-provided\r | |
| 815 | function. The caller can request the BSP to either wait for the completion\r | |
| 816 | of the AP or just proceed with the next task by using the EFI event mechanism.\r | |
| 817 | See EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() for more details on non-blocking\r | |
| 818 | execution support. This service may only be called from the BSP.\r | |
| 819 | \r | |
| 820 | This function is used to dispatch one enabled AP to the function specified by\r | |
| 821 | Procedure passing in the argument specified by ProcedureArgument. If WaitEvent\r | |
| 822 | is NULL, execution is in blocking mode. The BSP waits until the AP finishes or\r | |
| 823 | TimeoutInMicroSecondss expires. Otherwise, execution is in non-blocking mode.\r | |
| 824 | BSP proceeds to the next task without waiting for the AP. If a non-blocking mode\r | |
| 825 | is requested after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled,\r | |
| 826 | then EFI_UNSUPPORTED must be returned.\r | |
| 827 | \r | |
| 828 | If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r | |
| 829 | from Procedure, then execution of Procedure by the AP is terminated. The AP is\r | |
| 830 | available for subsequent calls to EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() and\r | |
| 831 | EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r | |
| 832 | \r | |
| 833 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL\r | |
| 834 | instance.\r | |
| 835 | @param[in] Procedure A pointer to the function to be run on\r | |
| 836 | enabled APs of the system. See type\r | |
| 837 | EFI_AP_PROCEDURE.\r | |
| 838 | @param[in] ProcessorNumber The handle number of the AP. The range is\r | |
| 839 | from 0 to the total number of logical\r | |
| 840 | processors minus 1. The total number of\r | |
| 841 | logical processors can be retrieved by\r | |
| 842 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
| 843 | @param[in] WaitEvent The event created by the caller with CreateEvent()\r | |
| 844 | service. If it is NULL, then execute in\r | |
| 845 | blocking mode. BSP waits until all APs finish\r | |
| 846 | or TimeoutInMicroseconds expires. If it's\r | |
| 847 | not NULL, then execute in non-blocking mode.\r | |
| 848 | BSP requests the function specified by\r | |
| 849 | Procedure to be started on all the enabled\r | |
| 850 | APs, and go on executing immediately. If\r | |
| 851 | all return from Procedure or TimeoutInMicroseconds\r | |
| 852 | expires, this event is signaled. The BSP\r | |
| 853 | can use the CheckEvent() or WaitForEvent()\r | |
| 854 | services to check the state of event. Type\r | |
| 855 | EFI_EVENT is defined in CreateEvent() in\r | |
| 856 | the Unified Extensible Firmware Interface\r | |
| 857 | Specification.\r | |
| 858 | @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for\r | |
| 859 | APs to return from Procedure, either for\r | |
| 860 | blocking or non-blocking mode. Zero means\r | |
| 861 | infinity. If the timeout expires before\r | |
| 862 | all APs return from Procedure, then Procedure\r | |
| 863 | on the failed APs is terminated. All enabled\r | |
| 864 | APs are available for next function assigned\r | |
| 865 | by EFI_MP_SERVICES_PROTOCOL.StartupAllAPs()\r | |
| 866 | or EFI_MP_SERVICES_PROTOCOL.StartupThisAP().\r | |
| 867 | If the timeout expires in blocking mode,\r | |
| 868 | BSP returns EFI_TIMEOUT. If the timeout\r | |
| 869 | expires in non-blocking mode, WaitEvent\r | |
| 870 | is signaled with SignalEvent().\r | |
| 871 | @param[in] ProcedureArgument The parameter passed into Procedure for\r | |
| 872 | all APs.\r | |
| 873 | @param[out] Finished If NULL, this parameter is ignored. In\r | |
| 874 | blocking mode, this parameter is ignored.\r | |
| 875 | In non-blocking mode, if AP returns from\r | |
| 876 | Procedure before the timeout expires, its\r | |
| 877 | content is set to TRUE. Otherwise, the\r | |
| 878 | value is set to FALSE. The caller can\r | |
| 879 | determine if the AP returned from Procedure\r | |
| 880 | by evaluating this value.\r | |
| 881 | \r | |
| 882 | @retval EFI_SUCCESS In blocking mode, specified AP finished before\r | |
| 883 | the timeout expires.\r | |
| 884 | @retval EFI_SUCCESS In non-blocking mode, the function has been\r | |
| 885 | dispatched to specified AP.\r | |
| 886 | @retval EFI_UNSUPPORTED A non-blocking mode request was made after the\r | |
| 887 | UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was\r | |
| 888 | signaled.\r | |
| 889 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
| 890 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before\r | |
| 891 | the specified AP has finished.\r | |
| 892 | @retval EFI_NOT_READY The specified AP is busy.\r | |
| 893 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
| 894 | ProcessorNumber does not exist.\r | |
| 895 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r | |
| 896 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
| 897 | \r | |
| 898 | **/\r | |
| 899 | EFI_STATUS\r | |
| 900 | EFIAPI\r | |
| 901 | StartupThisAP (\r | |
| 902 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 903 | IN EFI_AP_PROCEDURE Procedure,\r | |
| 904 | IN UINTN ProcessorNumber,\r | |
| 905 | IN EFI_EVENT WaitEvent OPTIONAL,\r | |
| 906 | IN UINTN TimeoutInMicroseconds,\r | |
| 907 | IN VOID *ProcedureArgument OPTIONAL,\r | |
| 908 | OUT BOOLEAN *Finished OPTIONAL\r | |
| 909 | )\r | |
| 910 | {\r | |
| 911 | CPU_DATA_BLOCK *CpuData;\r | |
| 68f06742 | 912 | CPU_STATE CpuState;\r |
| 3f4f0af8 CF |
913 | \r |
| 914 | CpuData = NULL;\r | |
| 915 | \r | |
| 916 | if (Finished != NULL) {\r | |
| 917 | *Finished = FALSE;\r | |
| 918 | }\r | |
| 919 | \r | |
| 920 | if (!IsBSP ()) {\r | |
| 921 | return EFI_DEVICE_ERROR;\r | |
| 922 | }\r | |
| 923 | \r | |
| 924 | if (Procedure == NULL) {\r | |
| 925 | return EFI_INVALID_PARAMETER;\r | |
| 926 | }\r | |
| 927 | \r | |
| 928 | if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {\r | |
| 929 | return EFI_NOT_FOUND;\r | |
| 930 | }\r | |
| 931 | \r | |
| cd8c700b CF |
932 | //\r |
| 933 | // temporarily stop checkAllAPsStatus for avoid resource dead-lock.\r | |
| 934 | //\r | |
| 935 | mStopCheckAllAPsStatus = TRUE;\r | |
| 936 | \r | |
| 3f4f0af8 CF |
937 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r |
| 938 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT) ||\r | |
| 939 | !TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 940 | return EFI_INVALID_PARAMETER;\r | |
| 941 | }\r | |
| 942 | \r | |
| 68f06742 CF |
943 | CpuState = GetApState (CpuData);\r |
| 944 | if (CpuState != CpuStateIdle &&\r | |
| 945 | CpuState != CpuStateSleeping) {\r | |
| 3f4f0af8 CF |
946 | return EFI_NOT_READY;\r |
| 947 | }\r | |
| 948 | \r | |
| 949 | SetApState (CpuData, CpuStateReady);\r | |
| 950 | \r | |
| 951 | SetApProcedure (CpuData, Procedure, ProcedureArgument);\r | |
| 68f06742 CF |
952 | //\r |
| 953 | // If this AP previous state is Sleeping, we should\r | |
| 954 | // wake up this AP by sent a SIPI. and avoid\r | |
| 955 | // re-involve the sleeping state. we must call\r | |
| 956 | // SetApProcedure() first.\r | |
| 957 | //\r | |
| 958 | if (CpuState == CpuStateSleeping) {\r | |
| 959 | ResetProcessorToIdleState (CpuData);\r | |
| 960 | }\r | |
| 3f4f0af8 CF |
961 | \r |
| 962 | CpuData->Timeout = TimeoutInMicroseconds;\r | |
| 963 | CpuData->WaitEvent = WaitEvent;\r | |
| 7475d138 | 964 | CpuData->TimeoutActive = (BOOLEAN) (TimeoutInMicroseconds != 0);\r |
| 3f4f0af8 CF |
965 | CpuData->Finished = Finished;\r |
| 966 | \r | |
| acb2172d CF |
967 | mStopCheckAllAPsStatus = FALSE;\r |
| 968 | \r | |
| 3f4f0af8 CF |
969 | if (WaitEvent != NULL) {\r |
| 970 | //\r | |
| 971 | // Non Blocking\r | |
| 972 | //\r | |
| acb2172d | 973 | return EFI_SUCCESS;\r |
| 3f4f0af8 CF |
974 | }\r |
| 975 | \r | |
| 976 | //\r | |
| 977 | // Blocking\r | |
| 978 | //\r | |
| 979 | while (TRUE) {\r | |
| 980 | if (GetApState (CpuData) == CpuStateFinished) {\r | |
| 981 | SetApState (CpuData, CpuStateIdle);\r | |
| 982 | break;\r | |
| 983 | }\r | |
| 984 | \r | |
| 985 | if (CpuData->TimeoutActive && CpuData->Timeout < 0) {\r | |
| 986 | ResetProcessorToIdleState (CpuData);\r | |
| 987 | return EFI_TIMEOUT;\r | |
| 988 | }\r | |
| 989 | \r | |
| 990 | gBS->Stall (gPollInterval);\r | |
| 991 | CpuData->Timeout -= gPollInterval;\r | |
| 992 | }\r | |
| 993 | \r | |
| 994 | return EFI_SUCCESS;\r | |
| 995 | }\r | |
| 996 | \r | |
| b7c05ba5 CF |
997 | /**\r |
| 998 | This service switches the requested AP to be the BSP from that point onward.\r | |
| 999 | This service changes the BSP for all purposes. This call can only be performed\r | |
| 1000 | by the current BSP.\r | |
| 1001 | \r | |
| 1002 | This service switches the requested AP to be the BSP from that point onward.\r | |
| 1003 | This service changes the BSP for all purposes. The new BSP can take over the\r | |
| 1004 | execution of the old BSP and continue seamlessly from where the old one left\r | |
| 1005 | off. This service may not be supported after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT\r | |
| 1006 | is signaled.\r | |
| 1007 | \r | |
| 1008 | If the BSP cannot be switched prior to the return from this service, then\r | |
| 1009 | EFI_UNSUPPORTED must be returned.\r | |
| 1010 | \r | |
| 1011 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
| 1012 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r | |
| 1013 | BSP. The range is from 0 to the total number of\r | |
| 1014 | logical processors minus 1. The total number of\r | |
| 1015 | logical processors can be retrieved by\r | |
| 1016 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
| 1017 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an\r | |
| 1018 | enabled AP. Otherwise, it will be disabled.\r | |
| 1019 | \r | |
| 1020 | @retval EFI_SUCCESS BSP successfully switched.\r | |
| 1021 | @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to\r | |
| 1022 | this service returning.\r | |
| 1023 | @retval EFI_UNSUPPORTED Switching the BSP is not supported.\r | |
| 1024 | @retval EFI_SUCCESS The calling processor is an AP.\r | |
| 1025 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
| 1026 | ProcessorNumber does not exist.\r | |
| 1027 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or\r | |
| 1028 | a disabled AP.\r | |
| 1029 | @retval EFI_NOT_READY The specified AP is busy.\r | |
| 1030 | \r | |
| 1031 | **/\r | |
| 1032 | EFI_STATUS\r | |
| 1033 | EFIAPI\r | |
| 1034 | SwitchBSP (\r | |
| 1035 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 1036 | IN UINTN ProcessorNumber,\r | |
| 1037 | IN BOOLEAN EnableOldBSP\r | |
| 1038 | )\r | |
| 1039 | {\r | |
| 1040 | //\r | |
| 1041 | // Current always return unsupported.\r | |
| 1042 | //\r | |
| 1043 | return EFI_UNSUPPORTED;\r | |
| 1044 | }\r | |
| 1045 | \r | |
| fa7ce675 CF |
1046 | /**\r |
| 1047 | This service lets the caller enable or disable an AP from this point onward.\r | |
| 1048 | This service may only be called from the BSP.\r | |
| 1049 | \r | |
| 1050 | This service allows the caller enable or disable an AP from this point onward.\r | |
| 1051 | The caller can optionally specify the health status of the AP by Health. If\r | |
| 1052 | an AP is being disabled, then the state of the disabled AP is implementation\r | |
| 1053 | dependent. If an AP is enabled, then the implementation must guarantee that a\r | |
| 1054 | complete initialization sequence is performed on the AP, so the AP is in a state\r | |
| 1055 | that is compatible with an MP operating system. This service may not be supported\r | |
| 1056 | after the UEFI Event EFI_EVENT_GROUP_READY_TO_BOOT is signaled.\r | |
| 1057 | \r | |
| 1058 | If the enable or disable AP operation cannot be completed prior to the return\r | |
| 1059 | from this service, then EFI_UNSUPPORTED must be returned.\r | |
| 1060 | \r | |
| 1061 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
| 1062 | @param[in] ProcessorNumber The handle number of AP that is to become the new\r | |
| 1063 | BSP. The range is from 0 to the total number of\r | |
| 1064 | logical processors minus 1. The total number of\r | |
| 1065 | logical processors can be retrieved by\r | |
| 1066 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
| 1067 | @param[in] EnableAP Specifies the new state for the processor for\r | |
| 1068 | enabled, FALSE for disabled.\r | |
| 1069 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies\r | |
| 1070 | the new health status of the AP. This flag\r | |
| 1071 | corresponds to StatusFlag defined in\r | |
| 1072 | EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only\r | |
| 1073 | the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r | |
| 1074 | bits are ignored. If it is NULL, this parameter\r | |
| 1075 | is ignored.\r | |
| 1076 | \r | |
| 1077 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r | |
| 1078 | @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed\r | |
| 1079 | prior to this service returning.\r | |
| 1080 | @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r | |
| 1081 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
| 1082 | @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r | |
| 1083 | does not exist.\r | |
| 1084 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r | |
| 1085 | \r | |
| 1086 | **/\r | |
| 1087 | EFI_STATUS\r | |
| 1088 | EFIAPI\r | |
| 1089 | EnableDisableAP (\r | |
| 1090 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 1091 | IN UINTN ProcessorNumber,\r | |
| 1092 | IN BOOLEAN EnableAP,\r | |
| 1093 | IN UINT32 *HealthFlag OPTIONAL\r | |
| 1094 | )\r | |
| 1095 | {\r | |
| 1096 | CPU_DATA_BLOCK *CpuData;\r | |
| cd8c700b | 1097 | BOOLEAN TempStopCheckState;\r |
| 68f06742 | 1098 | CPU_STATE CpuState;\r |
| cd8c700b CF |
1099 | \r |
| 1100 | CpuData = NULL;\r | |
| 1101 | TempStopCheckState = FALSE;\r | |
| fa7ce675 CF |
1102 | \r |
| 1103 | if (!IsBSP ()) {\r | |
| 1104 | return EFI_DEVICE_ERROR;\r | |
| 1105 | }\r | |
| 1106 | \r | |
| 1107 | if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {\r | |
| 1108 | return EFI_NOT_FOUND;\r | |
| 1109 | }\r | |
| 1110 | \r | |
| cd8c700b CF |
1111 | //\r |
| 1112 | // temporarily stop checkAllAPsStatus for initialize parameters.\r | |
| 1113 | //\r | |
| 1114 | if (!mStopCheckAllAPsStatus) {\r | |
| 1115 | mStopCheckAllAPsStatus = TRUE;\r | |
| 1116 | TempStopCheckState = TRUE;\r | |
| 1117 | }\r | |
| 1118 | \r | |
| fa7ce675 CF |
1119 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r |
| 1120 | if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {\r | |
| 1121 | return EFI_INVALID_PARAMETER;\r | |
| 1122 | }\r | |
| 1123 | \r | |
| 68f06742 CF |
1124 | CpuState = GetApState (CpuData);\r |
| 1125 | if (CpuState != CpuStateIdle &&\r | |
| 1126 | CpuState != CpuStateSleeping) {\r | |
| fa7ce675 CF |
1127 | return EFI_UNSUPPORTED;\r |
| 1128 | }\r | |
| 1129 | \r | |
| 1130 | if (EnableAP) {\r | |
| 1131 | if (!(TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT))) {\r | |
| 1132 | mMpSystemData.NumberOfEnabledProcessors++;\r | |
| 1133 | }\r | |
| 1134 | CpuStatusFlagOr (CpuData, PROCESSOR_ENABLED_BIT);\r | |
| 1135 | } else {\r | |
| 1136 | if (TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {\r | |
| 1137 | mMpSystemData.NumberOfEnabledProcessors--;\r | |
| 1138 | }\r | |
| 1139 | CpuStatusFlagAndNot (CpuData, PROCESSOR_ENABLED_BIT);\r | |
| 1140 | }\r | |
| 1141 | \r | |
| 1142 | if (HealthFlag != NULL) {\r | |
| 1143 | CpuStatusFlagAndNot (CpuData, (UINT32)~PROCESSOR_HEALTH_STATUS_BIT);\r | |
| 1144 | CpuStatusFlagOr (CpuData, (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT));\r | |
| 1145 | }\r | |
| 1146 | \r | |
| cd8c700b CF |
1147 | if (TempStopCheckState) {\r |
| 1148 | mStopCheckAllAPsStatus = FALSE;\r | |
| 1149 | }\r | |
| 1150 | \r | |
| fa7ce675 CF |
1151 | return EFI_SUCCESS;\r |
| 1152 | }\r | |
| 1153 | \r | |
| cfa2fac1 CF |
1154 | /**\r |
| 1155 | This return the handle number for the calling processor. This service may be\r | |
| 1156 | called from the BSP and APs.\r | |
| 1157 | \r | |
| 1158 | This service returns the processor handle number for the calling processor.\r | |
| 1159 | The returned value is in the range from 0 to the total number of logical\r | |
| 1160 | processors minus 1. The total number of logical processors can be retrieved\r | |
| 1161 | with EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors(). This service may be\r | |
| 1162 | called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r | |
| 1163 | is returned. Otherwise, the current processors handle number is returned in\r | |
| 1164 | ProcessorNumber, and EFI_SUCCESS is returned.\r | |
| 1165 | \r | |
| 1166 | @param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL instance.\r | |
| 1167 | @param[out] ProcessorNumber The handle number of AP that is to become the new\r | |
| 1168 | BSP. The range is from 0 to the total number of\r | |
| 1169 | logical processors minus 1. The total number of\r | |
| 1170 | logical processors can be retrieved by\r | |
| 1171 | EFI_MP_SERVICES_PROTOCOL.GetNumberOfProcessors().\r | |
| 1172 | \r | |
| 1173 | @retval EFI_SUCCESS The current processor handle number was returned\r | |
| 1174 | in ProcessorNumber.\r | |
| 1175 | @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r | |
| 1176 | \r | |
| 1177 | **/\r | |
| 1178 | EFI_STATUS\r | |
| 1179 | EFIAPI\r | |
| 1180 | WhoAmI (\r | |
| 1181 | IN EFI_MP_SERVICES_PROTOCOL *This,\r | |
| 1182 | OUT UINTN *ProcessorNumber\r | |
| 1183 | )\r | |
| 1184 | {\r | |
| 1185 | UINTN Index;\r | |
| 1186 | UINT32 ProcessorId;\r | |
| 1187 | \r | |
| 1188 | if (ProcessorNumber == NULL) {\r | |
| 1189 | return EFI_INVALID_PARAMETER;\r | |
| 1190 | }\r | |
| 1191 | \r | |
| 1192 | ProcessorId = GetApicId ();\r | |
| 1193 | for (Index = 0; Index < mMpSystemData.NumberOfProcessors; Index++) {\r | |
| 1194 | if (mMpSystemData.CpuDatas[Index].Info.ProcessorId == ProcessorId) {\r | |
| 1195 | break;\r | |
| 1196 | }\r | |
| 1197 | }\r | |
| 1198 | \r | |
| 1199 | *ProcessorNumber = Index;\r | |
| 1200 | return EFI_SUCCESS;\r | |
| 1201 | }\r | |
| 1202 | \r | |
| 3f4f0af8 CF |
1203 | /**\r |
| 1204 | Terminate AP's task and set it to idle state.\r | |
| 1205 | \r | |
| 1206 | This function terminates AP's task due to timeout by sending INIT-SIPI,\r | |
| 1207 | and sends it to idle state.\r | |
| 1208 | \r | |
| 1209 | @param CpuData the pointer to CPU_DATA_BLOCK of specified AP\r | |
| 1210 | \r | |
| 1211 | **/\r | |
| 1212 | VOID\r | |
| 1213 | ResetProcessorToIdleState (\r | |
| 1214 | IN CPU_DATA_BLOCK *CpuData\r | |
| 1215 | )\r | |
| 1216 | {\r | |
| ac9dbb3b | 1217 | ResetApStackless ((UINT32)CpuData->Info.ProcessorId);\r |
| 3f4f0af8 CF |
1218 | }\r |
| 1219 | \r | |
| e343f8f7 CF |
1220 | /**\r |
| 1221 | Application Processors do loop routine\r | |
| 1222 | after switch to its own stack.\r | |
| 1223 | \r | |
| 1224 | @param Context1 A pointer to the context to pass into the function.\r | |
| 1225 | @param Context2 A pointer to the context to pass into the function.\r | |
| 1226 | \r | |
| 1227 | **/\r | |
| 1228 | VOID\r | |
| 1229 | ProcessorToIdleState (\r | |
| 1230 | IN VOID *Context1, OPTIONAL\r | |
| 1231 | IN VOID *Context2 OPTIONAL\r | |
| 1232 | )\r | |
| 1233 | {\r | |
| 9908a829 CF |
1234 | UINTN ProcessorNumber;\r |
| 1235 | CPU_DATA_BLOCK *CpuData;\r | |
| 1236 | EFI_AP_PROCEDURE Procedure;\r | |
| 33f413f0 | 1237 | volatile VOID *ProcedureArgument;\r |
| 9908a829 | 1238 | \r |
| 232eb4c8 CF |
1239 | AsmApDoneWithCommonStack ();\r |
| 1240 | \r | |
| 1241 | while (!mAPsAlreadyInitFinished) {\r | |
| 1242 | CpuPause ();\r | |
| 1243 | }\r | |
| 1244 | \r | |
| 9908a829 CF |
1245 | WhoAmI (&mMpServicesTemplate, &ProcessorNumber);\r |
| 1246 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r | |
| e343f8f7 | 1247 | \r |
| 0e724fc1 CF |
1248 | //\r |
| 1249 | // Avoid forcibly reset AP caused the AP got lock not release.\r | |
| 1250 | //\r | |
| 1251 | if (CpuData->LockSelf == (INTN) GetApicId ()) {\r | |
| 1252 | ReleaseSpinLock (&CpuData->CpuDataLock);\r | |
| 1253 | }\r | |
| 1254 | \r | |
| ac9dbb3b | 1255 | //\r |
| e033a1a8 CF |
1256 | // Avoid forcibly reset AP caused the timeout AP State is not\r |
| 1257 | // updated.\r | |
| ac9dbb3b CF |
1258 | //\r |
| 1259 | GetMpSpinLock (CpuData);\r | |
| e033a1a8 CF |
1260 | if (CpuData->State == CpuStateBusy) {\r |
| 1261 | CpuData->Procedure = NULL;\r | |
| 1262 | }\r | |
| ac9dbb3b | 1263 | CpuData->State = CpuStateIdle;\r |
| ac9dbb3b CF |
1264 | ReleaseMpSpinLock (CpuData);\r |
| 1265 | \r | |
| 9908a829 | 1266 | while (TRUE) {\r |
| d16cf36d | 1267 | GetMpSpinLock (CpuData);\r |
| 9908a829 CF |
1268 | ProcedureArgument = CpuData->Parameter;\r |
| 1269 | Procedure = CpuData->Procedure;\r | |
| d16cf36d | 1270 | ReleaseMpSpinLock (CpuData);\r |
| 9908a829 CF |
1271 | \r |
| 1272 | if (Procedure != NULL) {\r | |
| e033a1a8 CF |
1273 | SetApState (CpuData, CpuStateBusy);\r |
| 1274 | \r | |
| 33f413f0 | 1275 | Procedure ((VOID*) ProcedureArgument);\r |
| 9908a829 | 1276 | \r |
| d16cf36d | 1277 | GetMpSpinLock (CpuData);\r |
| 9908a829 | 1278 | CpuData->Procedure = NULL;\r |
| d16cf36d CF |
1279 | CpuData->State = CpuStateFinished;\r |
| 1280 | ReleaseMpSpinLock (CpuData);\r | |
| 68f06742 CF |
1281 | } else {\r |
| 1282 | //\r | |
| 1283 | // if no procedure to execution, we simply put AP\r | |
| 1284 | // into sleeping state, and waiting BSP sent SIPI.\r | |
| 1285 | //\r | |
| 1286 | GetMpSpinLock (CpuData);\r | |
| 1287 | if (CpuData->State == CpuStateIdle) {\r | |
| 1288 | CpuData->State = CpuStateSleeping;\r | |
| 1289 | }\r | |
| 1290 | ReleaseMpSpinLock (CpuData);\r | |
| 1291 | }\r | |
| 1292 | \r | |
| 1293 | if (GetApState (CpuData) == CpuStateSleeping) {\r | |
| 1294 | CpuSleep ();\r | |
| 9908a829 CF |
1295 | }\r |
| 1296 | \r | |
| 1297 | CpuPause ();\r | |
| 1298 | }\r | |
| 1299 | \r | |
| e343f8f7 CF |
1300 | CpuSleep ();\r |
| 1301 | CpuDeadLoop ();\r | |
| 1302 | }\r | |
| 1303 | \r | |
| 3f4f0af8 CF |
1304 | /**\r |
| 1305 | Checks AP' status periodically.\r | |
| 1306 | \r | |
| 1307 | This function is triggerred by timer perodically to check the\r | |
| 1308 | state of AP forStartupThisAP() executed in non-blocking mode.\r | |
| 1309 | \r | |
| 1310 | @param Event Event triggered.\r | |
| 1311 | @param Context Parameter passed with the event.\r | |
| 1312 | \r | |
| 1313 | **/\r | |
| 1314 | VOID\r | |
| 1315 | EFIAPI\r | |
| 1316 | CheckThisAPStatus (\r | |
| 1317 | IN EFI_EVENT Event,\r | |
| 1318 | IN VOID *Context\r | |
| 1319 | )\r | |
| 1320 | {\r | |
| 1321 | CPU_DATA_BLOCK *CpuData;\r | |
| 1322 | CPU_STATE CpuState;\r | |
| 1323 | \r | |
| 1324 | CpuData = (CPU_DATA_BLOCK *) Context;\r | |
| 1325 | if (CpuData->TimeoutActive) {\r | |
| 1326 | CpuData->Timeout -= gPollInterval;\r | |
| 1327 | }\r | |
| 1328 | \r | |
| 1329 | CpuState = GetApState (CpuData);\r | |
| 1330 | \r | |
| 1331 | if (CpuState == CpuStateFinished) {\r | |
| 1332 | if (CpuData->Finished) {\r | |
| 1333 | *CpuData->Finished = TRUE;\r | |
| 1334 | }\r | |
| 1335 | SetApState (CpuData, CpuStateIdle);\r | |
| 1336 | goto out;\r | |
| 1337 | }\r | |
| 1338 | \r | |
| 1339 | if (CpuData->TimeoutActive && CpuData->Timeout < 0) {\r | |
| 1340 | if (CpuState != CpuStateIdle &&\r | |
| 1341 | CpuData->Finished) {\r | |
| 1342 | *CpuData->Finished = FALSE;\r | |
| 1343 | }\r | |
| 1344 | ResetProcessorToIdleState (CpuData);\r | |
| 1345 | goto out;\r | |
| 1346 | }\r | |
| 1347 | \r | |
| 1348 | return;\r | |
| 1349 | \r | |
| 1350 | out:\r | |
| acb2172d CF |
1351 | CpuData->TimeoutActive = FALSE;\r |
| 1352 | gBS->SignalEvent (CpuData->WaitEvent);\r | |
| 1353 | CpuData->WaitEvent = NULL;\r | |
| 3f4f0af8 CF |
1354 | }\r |
| 1355 | \r | |
| 5fee172f CF |
1356 | /**\r |
| 1357 | Checks APs' status periodically.\r | |
| 1358 | \r | |
| 1359 | This function is triggerred by timer perodically to check the\r | |
| 1360 | state of APs for StartupAllAPs() executed in non-blocking mode.\r | |
| 1361 | \r | |
| 1362 | @param Event Event triggered.\r | |
| 1363 | @param Context Parameter passed with the event.\r | |
| 1364 | \r | |
| 1365 | **/\r | |
| 1366 | VOID\r | |
| 1367 | EFIAPI\r | |
| 1368 | CheckAllAPsStatus (\r | |
| 1369 | IN EFI_EVENT Event,\r | |
| 1370 | IN VOID *Context\r | |
| 1371 | )\r | |
| 1372 | {\r | |
| acb2172d CF |
1373 | CPU_DATA_BLOCK *CpuData;\r |
| 1374 | UINTN Number;\r | |
| e4aaf764 | 1375 | EFI_STATUS Status;\r |
| acb2172d | 1376 | \r |
| 5fee172f CF |
1377 | if (mMpSystemData.TimeoutActive) {\r |
| 1378 | mMpSystemData.Timeout -= gPollInterval;\r | |
| 1379 | }\r | |
| 1380 | \r | |
| acb2172d CF |
1381 | if (mStopCheckAllAPsStatus) {\r |
| 1382 | return;\r | |
| 1383 | }\r | |
| 5fee172f | 1384 | \r |
| e4aaf764 CF |
1385 | //\r |
| 1386 | // avoid next timer enter.\r | |
| 1387 | //\r | |
| 1388 | Status = gBS->SetTimer (\r | |
| 1389 | mMpSystemData.CheckAllAPsEvent,\r | |
| 1390 | TimerCancel,\r | |
| 1391 | 0\r | |
| 1392 | );\r | |
| 1393 | ASSERT_EFI_ERROR (Status);\r | |
| 1394 | \r | |
| acb2172d CF |
1395 | if (mMpSystemData.WaitEvent != NULL) {\r |
| 1396 | CheckAndUpdateAllAPsToIdleState ();\r | |
| 5fee172f | 1397 | //\r |
| acb2172d | 1398 | // task timeout\r |
| 5fee172f | 1399 | //\r |
| acb2172d CF |
1400 | if (mMpSystemData.TimeoutActive && mMpSystemData.Timeout < 0) {\r |
| 1401 | ResetAllFailedAPs();\r | |
| 1402 | //\r | |
| 1403 | // force exit\r | |
| 1404 | //\r | |
| 1405 | mMpSystemData.FinishCount = mMpSystemData.StartCount;\r | |
| 1406 | }\r | |
| 5fee172f | 1407 | \r |
| acb2172d | 1408 | if (mMpSystemData.FinishCount != mMpSystemData.StartCount) {\r |
| e4aaf764 | 1409 | goto EXIT;\r |
| acb2172d | 1410 | }\r |
| 5fee172f | 1411 | \r |
| acb2172d | 1412 | mMpSystemData.TimeoutActive = FALSE;\r |
| 5fee172f CF |
1413 | gBS->SignalEvent (mMpSystemData.WaitEvent);\r |
| 1414 | mMpSystemData.WaitEvent = NULL;\r | |
| acb2172d | 1415 | mStopCheckAllAPsStatus = TRUE;\r |
| e4aaf764 CF |
1416 | \r |
| 1417 | goto EXIT;\r | |
| acb2172d CF |
1418 | }\r |
| 1419 | \r | |
| 1420 | //\r | |
| 1421 | // check each AP status for StartupThisAP\r | |
| 1422 | //\r | |
| 1423 | for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {\r | |
| 1424 | CpuData = &mMpSystemData.CpuDatas[Number];\r | |
| acb2172d CF |
1425 | if (CpuData->WaitEvent) {\r |
| 1426 | CheckThisAPStatus (NULL, (VOID *)CpuData);\r | |
| 1427 | }\r | |
| 5fee172f | 1428 | }\r |
| e4aaf764 CF |
1429 | \r |
| 1430 | EXIT:\r | |
| 1431 | Status = gBS->SetTimer (\r | |
| 1432 | mMpSystemData.CheckAllAPsEvent,\r | |
| 1433 | TimerPeriodic,\r | |
| 1434 | EFI_TIMER_PERIOD_MICROSECONDS (100)\r | |
| 1435 | );\r | |
| 1436 | ASSERT_EFI_ERROR (Status);\r | |
| 5fee172f CF |
1437 | }\r |
| 1438 | \r | |
| 1535c888 JJ |
1439 | /**\r |
| 1440 | Application Processor C code entry point.\r | |
| 1441 | \r | |
| 1442 | **/\r | |
| 1443 | VOID\r | |
| 1444 | EFIAPI\r | |
| 1445 | ApEntryPointInC (\r | |
| 1446 | VOID\r | |
| 1447 | )\r | |
| 1448 | {\r | |
| ac9dbb3b CF |
1449 | VOID* TopOfApStack;\r |
| 1450 | UINTN ProcessorNumber;\r | |
| 03673ae1 | 1451 | \r |
| ac9dbb3b CF |
1452 | if (!mAPsAlreadyInitFinished) {\r |
| 1453 | FillInProcessorInformation (FALSE, mMpSystemData.NumberOfProcessors);\r | |
| 1454 | TopOfApStack = (UINT8*)mApStackStart + gApStackSize;\r | |
| 1455 | mApStackStart = TopOfApStack;\r | |
| 03673ae1 | 1456 | \r |
| ac9dbb3b CF |
1457 | //\r |
| 1458 | // Store the Stack address, when reset the AP, We can found the original address.\r | |
| 1459 | //\r | |
| 1460 | mMpSystemData.CpuDatas[mMpSystemData.NumberOfProcessors].TopOfStack = TopOfApStack;\r | |
| 1461 | mMpSystemData.NumberOfProcessors++;\r | |
| 1462 | mMpSystemData.NumberOfEnabledProcessors++;\r | |
| 1463 | } else {\r | |
| 1464 | WhoAmI (&mMpServicesTemplate, &ProcessorNumber);\r | |
| 1465 | //\r | |
| 1466 | // Get the original stack address.\r | |
| 1467 | //\r | |
| 1468 | TopOfApStack = mMpSystemData.CpuDatas[ProcessorNumber].TopOfStack;\r | |
| 1469 | }\r | |
| e343f8f7 CF |
1470 | \r |
| 1471 | SwitchStack (\r | |
| 1472 | (SWITCH_STACK_ENTRY_POINT)(UINTN)ProcessorToIdleState,\r | |
| 1473 | NULL,\r | |
| 1474 | NULL,\r | |
| 03673ae1 CF |
1475 | TopOfApStack);\r |
| 1476 | }\r | |
| 1477 | \r | |
| 1478 | /**\r | |
| 1479 | This function is called by all processors (both BSP and AP) once and collects MP related data.\r | |
| 1480 | \r | |
| 1481 | @param Bsp TRUE if the CPU is BSP\r | |
| 1482 | @param ProcessorNumber The specific processor number\r | |
| 1483 | \r | |
| 1484 | @retval EFI_SUCCESS Data for the processor collected and filled in\r | |
| 1485 | \r | |
| 1486 | **/\r | |
| 1487 | EFI_STATUS\r | |
| 1488 | FillInProcessorInformation (\r | |
| 1489 | IN BOOLEAN Bsp,\r | |
| 1490 | IN UINTN ProcessorNumber\r | |
| 1491 | )\r | |
| 1492 | {\r | |
| 1493 | CPU_DATA_BLOCK *CpuData;\r | |
| 1494 | UINT32 ProcessorId;\r | |
| 1495 | \r | |
| 1496 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r | |
| 1497 | ProcessorId = GetApicId ();\r | |
| 1498 | CpuData->Info.ProcessorId = ProcessorId;\r | |
| 1499 | CpuData->Info.StatusFlag = PROCESSOR_ENABLED_BIT | PROCESSOR_HEALTH_STATUS_BIT;\r | |
| 1500 | if (Bsp) {\r | |
| 1501 | CpuData->Info.StatusFlag |= PROCESSOR_AS_BSP_BIT;\r | |
| 1502 | }\r | |
| 1503 | CpuData->Info.Location.Package = ProcessorId;\r | |
| 1504 | CpuData->Info.Location.Core = 0;\r | |
| 1505 | CpuData->Info.Location.Thread = 0;\r | |
| b302a978 | 1506 | CpuData->State = Bsp ? CpuStateBusy : CpuStateIdle;\r |
| 03673ae1 CF |
1507 | \r |
| 1508 | CpuData->Procedure = NULL;\r | |
| 1509 | CpuData->Parameter = NULL;\r | |
| 1510 | InitializeSpinLock (&CpuData->CpuDataLock);\r | |
| 0e724fc1 | 1511 | CpuData->LockSelf = -1;\r |
| 03673ae1 CF |
1512 | \r |
| 1513 | return EFI_SUCCESS;\r | |
| 1535c888 JJ |
1514 | }\r |
| 1515 | \r | |
| 03673ae1 CF |
1516 | /**\r |
| 1517 | Prepare the System Data.\r | |
| 1518 | \r | |
| 1519 | @retval EFI_SUCCESS the System Data finished initilization.\r | |
| 1520 | \r | |
| 1521 | **/\r | |
| 1522 | EFI_STATUS\r | |
| 1523 | InitMpSystemData (\r | |
| 1524 | VOID\r | |
| 1525 | )\r | |
| 1526 | {\r | |
| 3f4f0af8 CF |
1527 | EFI_STATUS Status;\r |
| 1528 | \r | |
| 03673ae1 CF |
1529 | ZeroMem (&mMpSystemData, sizeof (MP_SYSTEM_DATA));\r |
| 1530 | \r | |
| 1531 | mMpSystemData.NumberOfProcessors = 1;\r | |
| 1532 | mMpSystemData.NumberOfEnabledProcessors = 1;\r | |
| 1533 | \r | |
| 1534 | mMpSystemData.CpuDatas = AllocateZeroPool (sizeof (CPU_DATA_BLOCK) * gMaxLogicalProcessorNumber);\r | |
| 1535 | ASSERT(mMpSystemData.CpuDatas != NULL);\r | |
| 1536 | \r | |
| 5fee172f CF |
1537 | Status = gBS->CreateEvent (\r |
| 1538 | EVT_TIMER | EVT_NOTIFY_SIGNAL,\r | |
| 1539 | TPL_CALLBACK,\r | |
| 1540 | CheckAllAPsStatus,\r | |
| 1541 | NULL,\r | |
| 1542 | &mMpSystemData.CheckAllAPsEvent\r | |
| 1543 | );\r | |
| 1544 | ASSERT_EFI_ERROR (Status);\r | |
| 1545 | \r | |
| acb2172d CF |
1546 | //\r |
| 1547 | // Set timer to check all APs status.\r | |
| 1548 | //\r | |
| 1549 | Status = gBS->SetTimer (\r | |
| 1550 | mMpSystemData.CheckAllAPsEvent,\r | |
| 1551 | TimerPeriodic,\r | |
| 1552 | EFI_TIMER_PERIOD_MICROSECONDS (100)\r | |
| 1553 | );\r | |
| 1554 | ASSERT_EFI_ERROR (Status);\r | |
| 3f4f0af8 | 1555 | \r |
| 03673ae1 CF |
1556 | //\r |
| 1557 | // BSP\r | |
| 1558 | //\r | |
| 1559 | FillInProcessorInformation (TRUE, 0);\r | |
| 1560 | \r | |
| 1561 | return EFI_SUCCESS;\r | |
| 1562 | }\r | |
| 1535c888 | 1563 | \r |
| db61e163 JF |
1564 | /**\r |
| 1565 | Collects BIST data from HOB.\r | |
| 1566 | \r | |
| 1567 | This function collects BIST data from HOB built from Sec Platform Information\r | |
| 1568 | PPI or SEC Platform Information2 PPI.\r | |
| 1569 | \r | |
| 1570 | **/\r | |
| 1571 | VOID\r | |
| 1572 | CollectBistDataFromHob (\r | |
| 1573 | VOID\r | |
| 1574 | )\r | |
| 1575 | {\r | |
| 1576 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
| 1577 | EFI_SEC_PLATFORM_INFORMATION_RECORD2 *SecPlatformInformation2;\r | |
| 1578 | EFI_SEC_PLATFORM_INFORMATION_RECORD *SecPlatformInformation;\r | |
| 1579 | UINTN NumberOfData;\r | |
| 1580 | EFI_SEC_PLATFORM_INFORMATION_CPU *CpuInstance;\r | |
| 1581 | EFI_SEC_PLATFORM_INFORMATION_CPU BspCpuInstance;\r | |
| 1582 | UINTN ProcessorNumber;\r | |
| 1583 | UINT32 InitialLocalApicId;\r | |
| 1584 | CPU_DATA_BLOCK *CpuData;\r | |
| 1585 | \r | |
| 1586 | SecPlatformInformation2 = NULL;\r | |
| 1587 | SecPlatformInformation = NULL;\r | |
| 1588 | \r | |
| 1589 | //\r | |
| 1590 | // Get gEfiSecPlatformInformation2PpiGuid Guided HOB firstly\r | |
| 1591 | //\r | |
| 1592 | GuidHob = GetFirstGuidHob (&gEfiSecPlatformInformation2PpiGuid);\r | |
| 1593 | if (GuidHob != NULL) {\r | |
| 1594 | //\r | |
| 1595 | // Sec Platform Information2 PPI includes BSP/APs' BIST information\r | |
| 1596 | //\r | |
| 1597 | SecPlatformInformation2 = GET_GUID_HOB_DATA (GuidHob);\r | |
| 1598 | NumberOfData = SecPlatformInformation2->NumberOfCpus;\r | |
| 1599 | CpuInstance = SecPlatformInformation2->CpuInstance;\r | |
| 1600 | } else {\r | |
| 1601 | //\r | |
| 1602 | // Otherwise, get gEfiSecPlatformInformationPpiGuid Guided HOB\r | |
| 1603 | //\r | |
| 1604 | GuidHob = GetFirstGuidHob (&gEfiSecPlatformInformationPpiGuid);\r | |
| 1605 | if (GuidHob != NULL) {\r | |
| 1606 | SecPlatformInformation = GET_GUID_HOB_DATA (GuidHob);\r | |
| 1607 | NumberOfData = 1;\r | |
| 1608 | //\r | |
| 1609 | // SEC Platform Information only includes BSP's BIST information\r | |
| 1610 | // does not have BSP's APIC ID\r | |
| 1611 | //\r | |
| 1612 | BspCpuInstance.CpuLocation = GetApicId ();\r | |
| 1613 | BspCpuInstance.InfoRecord.IA32HealthFlags.Uint32 = SecPlatformInformation->IA32HealthFlags.Uint32;\r | |
| 1614 | CpuInstance = &BspCpuInstance;\r | |
| 1615 | } else {\r | |
| 1616 | DEBUG ((EFI_D_INFO, "Does not find any HOB stored CPU BIST information!\n"));\r | |
| 1617 | //\r | |
| 1618 | // Does not find any HOB stored BIST information\r | |
| 1619 | //\r | |
| 1620 | return;\r | |
| 1621 | }\r | |
| 1622 | }\r | |
| 1623 | \r | |
| 13181dde | 1624 | while ((NumberOfData--) > 0) {\r |
| db61e163 JF |
1625 | for (ProcessorNumber = 0; ProcessorNumber < mMpSystemData.NumberOfProcessors; ProcessorNumber++) {\r |
| 1626 | CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];\r | |
| 1627 | InitialLocalApicId = (UINT32) CpuData->Info.ProcessorId;\r | |
| 1628 | if (InitialLocalApicId == CpuInstance[NumberOfData].CpuLocation) {\r | |
| 1629 | //\r | |
| 1630 | // Update CPU health status for MP Services Protocol according to BIST data.\r | |
| 1631 | //\r | |
| 1632 | if (CpuInstance[NumberOfData].InfoRecord.IA32HealthFlags.Uint32 != 0) {\r | |
| 1633 | CpuData->Info.StatusFlag &= ~PROCESSOR_HEALTH_STATUS_BIT;\r | |
| 1634 | //\r | |
| 1635 | // Report Status Code that self test is failed\r | |
| 1636 | //\r | |
| 1637 | REPORT_STATUS_CODE (\r | |
| 1638 | EFI_ERROR_CODE | EFI_ERROR_MAJOR,\r | |
| 1639 | (EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_CU_HP_EC_SELF_TEST)\r | |
| 1640 | );\r | |
| 1641 | }\r | |
| 1642 | }\r | |
| 1643 | }\r | |
| 1644 | }\r | |
| 1645 | }\r | |
| 1646 | \r | |
| 9840b129 CF |
1647 | /**\r |
| 1648 | Callback function for ExitBootServices.\r | |
| 1649 | \r | |
| 1650 | @param Event Event whose notification function is being invoked.\r | |
| 1651 | @param Context The pointer to the notification function's context,\r | |
| 1652 | which is implementation-dependent.\r | |
| 1653 | \r | |
| 1654 | **/\r | |
| 1655 | VOID\r | |
| 1656 | EFIAPI\r | |
| 1657 | ExitBootServicesCallback (\r | |
| 1658 | IN EFI_EVENT Event,\r | |
| 1659 | IN VOID *Context\r | |
| 1660 | )\r | |
| 1661 | {\r | |
| 1662 | //\r | |
| 1663 | // Avoid APs access invalid buff datas which allocated by BootServices,\r | |
| 1664 | // so we send INIT IPI to APs to let them wait for SIPI state.\r | |
| 1665 | //\r | |
| 1666 | SendInitIpiAllExcludingSelf ();\r | |
| 1667 | }\r | |
| 1668 | \r | |
| 6022e28c JJ |
1669 | /**\r |
| 1670 | Initialize Multi-processor support.\r | |
| 1671 | \r | |
| 1672 | **/\r | |
| 1673 | VOID\r | |
| 1674 | InitializeMpSupport (\r | |
| 1675 | VOID\r | |
| 1676 | )\r | |
| 1677 | {\r | |
| 1aa6bf52 MK |
1678 | EFI_STATUS Status;\r |
| 1679 | UINTN Timeout;\r | |
| 4a50c272 | 1680 | \r |
| 6a26a597 CF |
1681 | gMaxLogicalProcessorNumber = (UINTN) PcdGet32 (PcdCpuMaxLogicalProcessorNumber);\r |
| 1682 | if (gMaxLogicalProcessorNumber < 1) {\r | |
| 1683 | DEBUG ((DEBUG_ERROR, "Setting PcdCpuMaxLogicalProcessorNumber should be more than zero.\n"));\r | |
| 1684 | return;\r | |
| 1685 | }\r | |
| 1686 | \r | |
| 6a26a597 | 1687 | \r |
| 6a26a597 | 1688 | \r |
| 944f45ae | 1689 | InitMpSystemData ();\r |
| 6022e28c | 1690 | \r |
| 6a26a597 | 1691 | //\r |
| 944f45ae | 1692 | // Only perform AP detection if PcdCpuMaxLogicalProcessorNumber is greater than 1\r |
| 6a26a597 | 1693 | //\r |
| 944f45ae | 1694 | if (gMaxLogicalProcessorNumber > 1) {\r |
| 6a26a597 | 1695 | \r |
| 944f45ae MK |
1696 | gApStackSize = (UINTN) PcdGet32 (PcdCpuApStackSize);\r |
| 1697 | ASSERT ((gApStackSize & (SIZE_4KB - 1)) == 0);\r | |
| 1698 | \r | |
| 1699 | mApStackStart = AllocatePages (EFI_SIZE_TO_PAGES (gMaxLogicalProcessorNumber * gApStackSize));\r | |
| 1700 | ASSERT (mApStackStart != NULL);\r | |
| 1701 | \r | |
| 1702 | //\r | |
| 1703 | // the first buffer of stack size used for common stack, when the amount of AP\r | |
| 1704 | // more than 1, we should never free the common stack which maybe used for AP reset.\r | |
| 1705 | //\r | |
| 1706 | mCommonStack = mApStackStart;\r | |
| 1707 | mTopOfApCommonStack = (UINT8*) mApStackStart + gApStackSize;\r | |
| 1708 | mApStackStart = mTopOfApCommonStack;\r | |
| 6a26a597 | 1709 | \r |
| 944f45ae | 1710 | PrepareAPStartupCode ();\r |
| fe078dd5 | 1711 | \r |
| 944f45ae MK |
1712 | StartApsStackless ();\r |
| 1713 | }\r | |
| dee9376f JJ |
1714 | \r |
| 1715 | DEBUG ((DEBUG_INFO, "Detect CPU count: %d\n", mMpSystemData.NumberOfProcessors));\r | |
| 03673ae1 | 1716 | if (mMpSystemData.NumberOfProcessors == 1) {\r |
| fe078dd5 | 1717 | FreeApStartupCode ();\r |
| 944f45ae MK |
1718 | if (mCommonStack != NULL) {\r |
| 1719 | FreePages (mCommonStack, EFI_SIZE_TO_PAGES (gMaxLogicalProcessorNumber * gApStackSize));\r | |
| 1720 | }\r | |
| 6a26a597 CF |
1721 | }\r |
| 1722 | \r | |
| 232eb4c8 CF |
1723 | mMpSystemData.CpuDatas = ReallocatePool (\r |
| 1724 | sizeof (CPU_DATA_BLOCK) * gMaxLogicalProcessorNumber,\r | |
| 1725 | sizeof (CPU_DATA_BLOCK) * mMpSystemData.NumberOfProcessors,\r | |
| 1726 | mMpSystemData.CpuDatas);\r | |
| 1727 | \r | |
| 1aa6bf52 MK |
1728 | //\r |
| 1729 | // Release all APs to complete initialization and enter idle loop\r | |
| 1730 | //\r | |
| ac9dbb3b CF |
1731 | mAPsAlreadyInitFinished = TRUE;\r |
| 1732 | \r | |
| 1aa6bf52 MK |
1733 | //\r |
| 1734 | // Wait for all APs to enter idle loop.\r | |
| 1735 | //\r | |
| 1736 | Timeout = 0;\r | |
| 1737 | do {\r | |
| 1738 | if (CheckAllAPsSleeping ()) {\r | |
| 1739 | break;\r | |
| 1740 | }\r | |
| 1741 | gBS->Stall (gPollInterval);\r | |
| 1742 | Timeout += gPollInterval;\r | |
| 1743 | } while (Timeout <= PcdGet32 (PcdCpuApInitTimeOutInMicroSeconds));\r | |
| 1744 | ASSERT (Timeout <= PcdGet32 (PcdCpuApInitTimeOutInMicroSeconds));\r | |
| 1745 | \r | |
| db61e163 JF |
1746 | //\r |
| 1747 | // Update CPU healthy information from Guided HOB\r | |
| 1748 | //\r | |
| 1749 | CollectBistDataFromHob ();\r | |
| 1750 | \r | |
| 4a50c272 CF |
1751 | Status = gBS->InstallMultipleProtocolInterfaces (\r |
| 1752 | &mMpServiceHandle,\r | |
| 1753 | &gEfiMpServiceProtocolGuid, &mMpServicesTemplate,\r | |
| 1754 | NULL\r | |
| 1755 | );\r | |
| 1756 | ASSERT_EFI_ERROR (Status);\r | |
| 1757 | \r | |
| 944f45ae MK |
1758 | if (mMpSystemData.NumberOfProcessors > 1 && mMpSystemData.NumberOfProcessors < gMaxLogicalProcessorNumber) {\r |
| 1759 | if (mApStackStart != NULL) {\r | |
| 1760 | FreePages (mApStackStart, EFI_SIZE_TO_PAGES (\r | |
| 1761 | (gMaxLogicalProcessorNumber - mMpSystemData.NumberOfProcessors) *\r | |
| 1762 | gApStackSize));\r | |
| 1763 | }\r | |
| 6a26a597 | 1764 | }\r |
| 9840b129 CF |
1765 | \r |
| 1766 | Status = gBS->CreateEvent (\r | |
| 1767 | EVT_SIGNAL_EXIT_BOOT_SERVICES,\r | |
| 1768 | TPL_CALLBACK,\r | |
| 1769 | ExitBootServicesCallback,\r | |
| 1770 | NULL,\r | |
| 1771 | &mExitBootServicesEvent\r | |
| 1772 | );\r | |
| 1773 | ASSERT_EFI_ERROR (Status);\r | |
| 6a26a597 | 1774 | }\r |