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1 | /** @file\r |
2 | Definitions to install Multiple Processor PPI.\r | |
3 | \r | |
a430589c | 4 | Copyright (c) 2015 - 2019, Intel Corporation. All rights reserved.<BR>\r |
0acd8697 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
ea0f431c JF |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #ifndef _CPU_MP_PEI_H_\r | |
10 | #define _CPU_MP_PEI_H_\r | |
11 | \r | |
12 | #include <PiPei.h>\r | |
13 | \r | |
14 | #include <Ppi/MpServices.h>\r | |
15 | #include <Ppi/SecPlatformInformation.h>\r | |
16 | #include <Ppi/SecPlatformInformation2.h>\r | |
17 | #include <Ppi/EndOfPeiPhase.h>\r | |
a430589c | 18 | #include <Ppi/MpServices2.h>\r |
ea0f431c JF |
19 | \r |
20 | #include <Library/BaseLib.h>\r | |
ea0f431c JF |
21 | #include <Library/DebugLib.h>\r |
22 | #include <Library/HobLib.h>\r | |
23 | #include <Library/LocalApicLib.h>\r | |
ea0f431c JF |
24 | #include <Library/PeimEntryPoint.h>\r |
25 | #include <Library/PeiServicesLib.h>\r | |
26 | #include <Library/ReportStatusCodeLib.h>\r | |
9bedfb2f | 27 | #include <Library/CpuExceptionHandlerLib.h>\r |
a1a4c7a4 | 28 | #include <Library/MpInitLib.h>\r |
86432994 | 29 | #include <Library/BaseMemoryLib.h>\r |
ea0f431c | 30 | \r |
ea0f431c JF |
31 | extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;\r |
32 | \r | |
89fa1bf2 JF |
33 | /**\r |
34 | This service retrieves the number of logical processor in the platform\r | |
35 | and the number of those logical processors that are enabled on this boot.\r | |
36 | This service may only be called from the BSP.\r | |
37 | \r | |
38 | This function is used to retrieve the following information:\r | |
39 | - The number of logical processors that are present in the system.\r | |
40 | - The number of enabled logical processors in the system at the instant\r | |
41 | this call is made.\r | |
42 | \r | |
43 | Because MP Service Ppi provides services to enable and disable processors\r | |
44 | dynamically, the number of enabled logical processors may vary during the\r | |
45 | course of a boot session.\r | |
46 | \r | |
47 | If this service is called from an AP, then EFI_DEVICE_ERROR is returned.\r | |
48 | If NumberOfProcessors or NumberOfEnabledProcessors is NULL, then\r | |
49 | EFI_INVALID_PARAMETER is returned. Otherwise, the total number of processors\r | |
50 | is returned in NumberOfProcessors, the number of currently enabled processor\r | |
51 | is returned in NumberOfEnabledProcessors, and EFI_SUCCESS is returned.\r | |
52 | \r | |
53 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
54 | published by the PEI Foundation.\r | |
55 | @param[in] This Pointer to this instance of the PPI.\r | |
56 | @param[out] NumberOfProcessors Pointer to the total number of logical processors in\r | |
57 | the system, including the BSP and disabled APs.\r | |
58 | @param[out] NumberOfEnabledProcessors\r | |
59 | Number of processors in the system that are enabled.\r | |
60 | \r | |
61 | @retval EFI_SUCCESS The number of logical processors and enabled\r | |
62 | logical processors was retrieved.\r | |
63 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
64 | @retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.\r | |
65 | NumberOfEnabledProcessors is NULL.\r | |
66 | **/\r | |
67 | EFI_STATUS\r | |
68 | EFIAPI\r | |
69 | PeiGetNumberOfProcessors (\r | |
70 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
71 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
72 | OUT UINTN *NumberOfProcessors,\r | |
73 | OUT UINTN *NumberOfEnabledProcessors\r | |
74 | );\r | |
75 | \r | |
76 | /**\r | |
77 | Gets detailed MP-related information on the requested processor at the\r | |
78 | instant this call is made. This service may only be called from the BSP.\r | |
79 | \r | |
80 | This service retrieves detailed MP-related information about any processor\r | |
81 | on the platform. Note the following:\r | |
82 | - The processor information may change during the course of a boot session.\r | |
83 | - The information presented here is entirely MP related.\r | |
84 | \r | |
85 | Information regarding the number of caches and their sizes, frequency of operation,\r | |
86 | slot numbers is all considered platform-related information and is not provided\r | |
87 | by this service.\r | |
88 | \r | |
89 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
90 | published by the PEI Foundation.\r | |
91 | @param[in] This Pointer to this instance of the PPI.\r | |
92 | @param[in] ProcessorNumber Pointer to the total number of logical processors in\r | |
93 | the system, including the BSP and disabled APs.\r | |
94 | @param[out] ProcessorInfoBuffer Number of processors in the system that are enabled.\r | |
95 | \r | |
96 | @retval EFI_SUCCESS Processor information was returned.\r | |
97 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
98 | @retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.\r | |
99 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
100 | ProcessorNumber does not exist in the platform.\r | |
101 | **/\r | |
102 | EFI_STATUS\r | |
103 | EFIAPI\r | |
104 | PeiGetProcessorInfo (\r | |
105 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
106 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
107 | IN UINTN ProcessorNumber,\r | |
108 | OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer\r | |
109 | );\r | |
110 | \r | |
111 | /**\r | |
112 | This service executes a caller provided function on all enabled APs. APs can\r | |
113 | run either simultaneously or one at a time in sequence. This service supports\r | |
114 | both blocking requests only. This service may only\r | |
115 | be called from the BSP.\r | |
116 | \r | |
117 | This function is used to dispatch all the enabled APs to the function specified\r | |
118 | by Procedure. If any enabled AP is busy, then EFI_NOT_READY is returned\r | |
119 | immediately and Procedure is not started on any AP.\r | |
120 | \r | |
121 | If SingleThread is TRUE, all the enabled APs execute the function specified by\r | |
122 | Procedure one by one, in ascending order of processor handle number. Otherwise,\r | |
123 | all the enabled APs execute the function specified by Procedure simultaneously.\r | |
124 | \r | |
125 | If the timeout specified by TimeoutInMicroSeconds expires before all APs return\r | |
126 | from Procedure, then Procedure on the failed APs is terminated. All enabled APs\r | |
127 | are always available for further calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r | |
128 | and EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If FailedCpuList is not NULL, its\r | |
129 | content points to the list of processor handle numbers in which Procedure was\r | |
130 | terminated.\r | |
131 | \r | |
132 | Note: It is the responsibility of the consumer of the EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r | |
133 | to make sure that the nature of the code that is executed on the BSP and the\r | |
134 | dispatched APs is well controlled. The MP Services Ppi does not guarantee\r | |
135 | that the Procedure function is MP-safe. Hence, the tasks that can be run in\r | |
136 | parallel are limited to certain independent tasks and well-controlled exclusive\r | |
137 | code. PEI services and Ppis may not be called by APs unless otherwise\r | |
138 | specified.\r | |
139 | \r | |
140 | In blocking execution mode, BSP waits until all APs finish or\r | |
141 | TimeoutInMicroSeconds expires.\r | |
142 | \r | |
143 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
144 | published by the PEI Foundation.\r | |
145 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r | |
146 | @param[in] Procedure A pointer to the function to be run on enabled APs of\r | |
147 | the system.\r | |
148 | @param[in] SingleThread If TRUE, then all the enabled APs execute the function\r | |
149 | specified by Procedure one by one, in ascending order\r | |
150 | of processor handle number. If FALSE, then all the\r | |
151 | enabled APs execute the function specified by Procedure\r | |
152 | simultaneously.\r | |
153 | @param[in] TimeoutInMicroSeconds\r | |
154 | Indicates the time limit in microseconds for APs to\r | |
155 | return from Procedure, for blocking mode only. Zero\r | |
156 | means infinity. If the timeout expires before all APs\r | |
157 | return from Procedure, then Procedure on the failed APs\r | |
158 | is terminated. All enabled APs are available for next\r | |
159 | function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r | |
160 | or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the\r | |
161 | timeout expires in blocking mode, BSP returns\r | |
162 | EFI_TIMEOUT.\r | |
163 | @param[in] ProcedureArgument The parameter passed into Procedure for all APs.\r | |
164 | \r | |
165 | @retval EFI_SUCCESS In blocking mode, all APs have finished before the\r | |
166 | timeout expired.\r | |
167 | @retval EFI_DEVICE_ERROR Caller processor is AP.\r | |
168 | @retval EFI_NOT_STARTED No enabled APs exist in the system.\r | |
169 | @retval EFI_NOT_READY Any enabled APs are busy.\r | |
170 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before all\r | |
171 | enabled APs have finished.\r | |
172 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
173 | **/\r | |
174 | EFI_STATUS\r | |
175 | EFIAPI\r | |
176 | PeiStartupAllAPs (\r | |
177 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
178 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
179 | IN EFI_AP_PROCEDURE Procedure,\r | |
180 | IN BOOLEAN SingleThread,\r | |
181 | IN UINTN TimeoutInMicroSeconds,\r | |
182 | IN VOID *ProcedureArgument OPTIONAL\r | |
183 | );\r | |
184 | \r | |
185 | /**\r | |
186 | This service lets the caller get one enabled AP to execute a caller-provided\r | |
187 | function. The caller can request the BSP to wait for the completion\r | |
188 | of the AP. This service may only be called from the BSP.\r | |
189 | \r | |
190 | This function is used to dispatch one enabled AP to the function specified by\r | |
191 | Procedure passing in the argument specified by ProcedureArgument.\r | |
192 | The execution is in blocking mode. The BSP waits until the AP finishes or\r | |
193 | TimeoutInMicroSecondss expires.\r | |
194 | \r | |
195 | If the timeout specified by TimeoutInMicroseconds expires before the AP returns\r | |
196 | from Procedure, then execution of Procedure by the AP is terminated. The AP is\r | |
197 | available for subsequent calls to EFI_PEI_MP_SERVICES_PPI.StartupAllAPs() and\r | |
198 | EFI_PEI_MP_SERVICES_PPI.StartupThisAP().\r | |
199 | \r | |
200 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
201 | published by the PEI Foundation.\r | |
202 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r | |
203 | @param[in] Procedure A pointer to the function to be run on enabled APs of\r | |
204 | the system.\r | |
205 | @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r | |
206 | total number of logical processors minus 1. The total\r | |
207 | number of logical processors can be retrieved by\r | |
208 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r | |
209 | @param[in] TimeoutInMicroseconds\r | |
210 | Indicates the time limit in microseconds for APs to\r | |
211 | return from Procedure, for blocking mode only. Zero\r | |
212 | means infinity. If the timeout expires before all APs\r | |
213 | return from Procedure, then Procedure on the failed APs\r | |
214 | is terminated. All enabled APs are available for next\r | |
215 | function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()\r | |
216 | or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the\r | |
217 | timeout expires in blocking mode, BSP returns\r | |
218 | EFI_TIMEOUT.\r | |
219 | @param[in] ProcedureArgument The parameter passed into Procedure for all APs.\r | |
220 | \r | |
221 | @retval EFI_SUCCESS In blocking mode, specified AP finished before the\r | |
222 | timeout expires.\r | |
223 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
224 | @retval EFI_TIMEOUT In blocking mode, the timeout expired before the\r | |
225 | specified AP has finished.\r | |
226 | @retval EFI_NOT_FOUND The processor with the handle specified by\r | |
227 | ProcessorNumber does not exist.\r | |
228 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.\r | |
229 | @retval EFI_INVALID_PARAMETER Procedure is NULL.\r | |
230 | **/\r | |
231 | EFI_STATUS\r | |
232 | EFIAPI\r | |
233 | PeiStartupThisAP (\r | |
234 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
235 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
236 | IN EFI_AP_PROCEDURE Procedure,\r | |
237 | IN UINTN ProcessorNumber,\r | |
238 | IN UINTN TimeoutInMicroseconds,\r | |
239 | IN VOID *ProcedureArgument OPTIONAL\r | |
240 | );\r | |
241 | \r | |
242 | /**\r | |
243 | This service switches the requested AP to be the BSP from that point onward.\r | |
244 | This service changes the BSP for all purposes. This call can only be performed\r | |
245 | by the current BSP.\r | |
246 | \r | |
247 | This service switches the requested AP to be the BSP from that point onward.\r | |
248 | This service changes the BSP for all purposes. The new BSP can take over the\r | |
249 | execution of the old BSP and continue seamlessly from where the old one left\r | |
250 | off.\r | |
251 | \r | |
252 | If the BSP cannot be switched prior to the return from this service, then\r | |
253 | EFI_UNSUPPORTED must be returned.\r | |
254 | \r | |
255 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
256 | published by the PEI Foundation.\r | |
257 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r | |
258 | @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r | |
259 | total number of logical processors minus 1. The total\r | |
260 | number of logical processors can be retrieved by\r | |
261 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r | |
262 | @param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an enabled\r | |
263 | AP. Otherwise, it will be disabled.\r | |
264 | \r | |
265 | @retval EFI_SUCCESS BSP successfully switched.\r | |
266 | @retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to this\r | |
267 | service returning.\r | |
268 | @retval EFI_UNSUPPORTED Switching the BSP is not supported.\r | |
e3ae7f52 | 269 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r |
89fa1bf2 JF |
270 | @retval EFI_NOT_FOUND The processor with the handle specified by\r |
271 | ProcessorNumber does not exist.\r | |
272 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or a disabled\r | |
273 | AP.\r | |
274 | @retval EFI_NOT_READY The specified AP is busy.\r | |
275 | **/\r | |
276 | EFI_STATUS\r | |
277 | EFIAPI\r | |
278 | PeiSwitchBSP (\r | |
279 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
280 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
281 | IN UINTN ProcessorNumber,\r | |
282 | IN BOOLEAN EnableOldBSP\r | |
283 | );\r | |
284 | \r | |
285 | /**\r | |
286 | This service lets the caller enable or disable an AP from this point onward.\r | |
287 | This service may only be called from the BSP.\r | |
288 | \r | |
289 | This service allows the caller enable or disable an AP from this point onward.\r | |
290 | The caller can optionally specify the health status of the AP by Health. If\r | |
291 | an AP is being disabled, then the state of the disabled AP is implementation\r | |
292 | dependent. If an AP is enabled, then the implementation must guarantee that a\r | |
293 | complete initialization sequence is performed on the AP, so the AP is in a state\r | |
294 | that is compatible with an MP operating system.\r | |
295 | \r | |
296 | If the enable or disable AP operation cannot be completed prior to the return\r | |
297 | from this service, then EFI_UNSUPPORTED must be returned.\r | |
298 | \r | |
299 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
300 | published by the PEI Foundation.\r | |
301 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r | |
302 | @param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the\r | |
303 | total number of logical processors minus 1. The total\r | |
304 | number of logical processors can be retrieved by\r | |
305 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r | |
306 | @param[in] EnableAP Specifies the new state for the processor for enabled,\r | |
307 | FALSE for disabled.\r | |
308 | @param[in] HealthFlag If not NULL, a pointer to a value that specifies the\r | |
309 | new health status of the AP. This flag corresponds to\r | |
310 | StatusFlag defined in EFI_PEI_MP_SERVICES_PPI.GetProcessorInfo().\r | |
311 | Only the PROCESSOR_HEALTH_STATUS_BIT is used. All other\r | |
312 | bits are ignored. If it is NULL, this parameter is\r | |
313 | ignored.\r | |
314 | \r | |
315 | @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.\r | |
316 | @retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed prior\r | |
317 | to this service returning.\r | |
318 | @retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.\r | |
319 | @retval EFI_DEVICE_ERROR The calling processor is an AP.\r | |
320 | @retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber\r | |
321 | does not exist.\r | |
322 | @retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.\r | |
323 | **/\r | |
324 | EFI_STATUS\r | |
325 | EFIAPI\r | |
326 | PeiEnableDisableAP (\r | |
327 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
328 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
329 | IN UINTN ProcessorNumber,\r | |
330 | IN BOOLEAN EnableAP,\r | |
331 | IN UINT32 *HealthFlag OPTIONAL\r | |
332 | );\r | |
333 | \r | |
334 | /**\r | |
335 | This return the handle number for the calling processor. This service may be\r | |
336 | called from the BSP and APs.\r | |
337 | \r | |
338 | This service returns the processor handle number for the calling processor.\r | |
339 | The returned value is in the range from 0 to the total number of logical\r | |
340 | processors minus 1. The total number of logical processors can be retrieved\r | |
341 | with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be\r | |
342 | called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER\r | |
343 | is returned. Otherwise, the current processors handle number is returned in\r | |
344 | ProcessorNumber, and EFI_SUCCESS is returned.\r | |
345 | \r | |
346 | @param[in] PeiServices An indirect pointer to the PEI Services Table\r | |
347 | published by the PEI Foundation.\r | |
348 | @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.\r | |
349 | @param[out] ProcessorNumber The handle number of the AP. The range is from 0 to the\r | |
350 | total number of logical processors minus 1. The total\r | |
351 | number of logical processors can be retrieved by\r | |
352 | EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().\r | |
353 | \r | |
354 | @retval EFI_SUCCESS The current processor handle number was returned in\r | |
355 | ProcessorNumber.\r | |
356 | @retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.\r | |
357 | **/\r | |
358 | EFI_STATUS\r | |
359 | EFIAPI\r | |
360 | PeiWhoAmI (\r | |
361 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
362 | IN EFI_PEI_MP_SERVICES_PPI *This,\r | |
363 | OUT UINTN *ProcessorNumber\r | |
364 | );\r | |
ea0f431c | 365 | \r |
ea0f431c JF |
366 | /**\r |
367 | Collects BIST data from PPI.\r | |
368 | \r | |
369 | This function collects BIST data from Sec Platform Information2 PPI\r | |
370 | or SEC Platform Information PPI.\r | |
371 | \r | |
372 | @param PeiServices Pointer to PEI Services Table\r | |
ea0f431c JF |
373 | \r |
374 | **/\r | |
375 | VOID\r | |
376 | CollectBistDataFromPpi (\r | |
a1a4c7a4 | 377 | IN CONST EFI_PEI_SERVICES **PeiServices\r |
ea0f431c JF |
378 | );\r |
379 | \r | |
380 | /**\r | |
381 | Implementation of the PlatformInformation2 service in EFI_SEC_PLATFORM_INFORMATION2_PPI.\r | |
382 | \r | |
383 | @param PeiServices The pointer to the PEI Services Table.\r | |
384 | @param StructureSize The pointer to the variable describing size of the input buffer.\r | |
385 | @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2.\r | |
386 | \r | |
387 | @retval EFI_SUCCESS The data was successfully returned.\r | |
388 | @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to\r | |
389 | hold the record is returned in StructureSize.\r | |
390 | \r | |
391 | **/\r | |
392 | EFI_STATUS\r | |
393 | EFIAPI\r | |
394 | SecPlatformInformation2 (\r | |
395 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
396 | IN OUT UINT64 *StructureSize,\r | |
397 | OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2\r | |
398 | );\r | |
399 | \r | |
0a0d5296 JW |
400 | /**\r |
401 | Initializes MP and exceptions handlers.\r | |
402 | \r | |
403 | @param PeiServices The pointer to the PEI Services Table.\r | |
404 | \r | |
405 | @retval EFI_SUCCESS MP was successfully initialized.\r | |
406 | @retval others Error occurred in MP initialization.\r | |
407 | \r | |
408 | **/\r | |
409 | EFI_STATUS\r | |
410 | InitializeCpuMpWorker (\r | |
411 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
412 | );\r | |
413 | \r | |
414 | /**\r | |
415 | Enabl/setup stack guard for each processor if PcdCpuStackGuard is set to TRUE.\r | |
416 | \r | |
417 | Doing this in the memory-discovered callback is to make sure the Stack Guard\r | |
418 | feature to cover as most PEI code as possible.\r | |
419 | \r | |
420 | @param[in] PeiServices General purpose services available to every PEIM.\r | |
421 | @param[in] NotifyDescriptor The notification structure this PEIM registered on install.\r | |
422 | @param[in] Ppi The memory discovered PPI. Not used.\r | |
423 | \r | |
424 | @retval EFI_SUCCESS The function completed successfully.\r | |
425 | @retval others There's error in MP initialization.\r | |
426 | **/\r | |
427 | EFI_STATUS\r | |
428 | EFIAPI\r | |
429 | MemoryDiscoveredPpiNotifyCallback (\r | |
430 | IN EFI_PEI_SERVICES **PeiServices,\r | |
431 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
432 | IN VOID *Ppi\r | |
433 | );\r | |
434 | \r | |
435 | extern EFI_PEI_NOTIFY_DESCRIPTOR mPostMemNotifyList[];\r | |
436 | \r | |
ea0f431c | 437 | #endif\r |