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1/** @file\r
2 EFI PEI Core PPI services\r
3 \r
4Copyright (c) 2006, Intel Corporation\r
5All rights reserved. This program and the accompanying materials\r
6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#include <PeiMain.h>\r
16\r
17/**\r
18\r
19 Initialize PPI services.\r
20\r
21 @param PrivateData Pointer to the PEI Core data.\r
22 @param OldCoreData Pointer to old PEI Core data. \r
23 NULL if being run in non-permament memory mode.\r
24\r
25**/\r
26VOID\r
27InitializePpiServices (\r
28 IN PEI_CORE_INSTANCE *PrivateData,\r
29 IN PEI_CORE_INSTANCE *OldCoreData\r
30 )\r
31{\r
32 if (OldCoreData == NULL) {\r
33 PrivateData->PpiData.NotifyListEnd = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r
34 PrivateData->PpiData.DispatchListEnd = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r
35 PrivateData->PpiData.LastDispatchedNotify = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r
36 }\r
37}\r
38\r
39/**\r
40\r
41 Migrate the Hob list from the CAR stack to PEI installed memory.\r
42\r
43 @param PrivateData Pointer to PeiCore's private data structure.\r
44 @param OldCheckingBottom Bottom of temporary memory range. All Ppi in this range\r
45 will be fixup for PpiData and PpiDescriptor pointer.\r
46 @param OldCheckingTop Top of temporary memory range. All Ppi in this range\r
47 will be fixup for PpiData and PpiDescriptor.\r
48 @param Fixup The address difference between\r
49 the new Hob list and old Hob list.\r
50\r
51**/\r
52VOID\r
53ConvertPpiPointers (\r
54 IN PEI_CORE_INSTANCE *PrivateData,\r
55 IN UINTN OldCheckingBottom,\r
56 IN UINTN OldCheckingTop,\r
57 IN INTN Fixup\r
58 )\r
59{\r
60 UINT8 Index;\r
61 PEI_PPI_LIST_POINTERS *PpiPointer;\r
62\r
63 for (Index = 0; Index < FixedPcdGet32 (PcdPeiCoreMaxPpiSupported); Index++) {\r
64 if (Index < PrivateData->PpiData.PpiListEnd ||\r
65 Index > PrivateData->PpiData.NotifyListEnd) {\r
66 PpiPointer = &PrivateData->PpiData.PpiListPtrs[Index];\r
67\r
68 if (((UINTN)PpiPointer->Raw < OldCheckingTop) &&\r
69 ((UINTN)PpiPointer->Raw >= OldCheckingBottom)) {\r
70 //\r
71 // Convert the pointer to the PEIM descriptor from the old HOB heap\r
72 // to the relocated HOB heap.\r
73 //\r
74 PpiPointer->Raw = (VOID *) ((UINTN)PpiPointer->Raw + Fixup);\r
75\r
76 //\r
77 // Only when the PEIM descriptor is in the old HOB should it be necessary\r
78 // to try to convert the pointers in the PEIM descriptor\r
79 //\r
80\r
81 if (((UINTN)PpiPointer->Ppi->Guid < OldCheckingTop) &&\r
82 ((UINTN)PpiPointer->Ppi->Guid >= OldCheckingBottom)) {\r
83 //\r
84 // Convert the pointer to the GUID in the PPI or NOTIFY descriptor\r
85 // from the old HOB heap to the relocated HOB heap.\r
86 //\r
87 PpiPointer->Ppi->Guid = (VOID *) ((UINTN)PpiPointer->Ppi->Guid + Fixup);\r
88 }\r
89\r
90 //\r
91 // Assume that no code is located in the temporary memory, so the pointer to\r
92 // the notification function in the NOTIFY descriptor needs not be converted.\r
93 //\r
94 if (Index < PrivateData->PpiData.PpiListEnd &&\r
95 (UINTN)PpiPointer->Ppi->Ppi < OldCheckingTop &&\r
96 (UINTN)PpiPointer->Ppi->Ppi >= OldCheckingBottom) {\r
97 //\r
98 // Convert the pointer to the PPI interface structure in the PPI descriptor\r
99 // from the old HOB heap to the relocated HOB heap.\r
100 //\r
101 PpiPointer->Ppi->Ppi = (VOID *) ((UINTN)PpiPointer->Ppi->Ppi+ Fixup);\r
102 }\r
103 }\r
104 }\r
105 }\r
106}\r
107\r
108/**\r
109\r
110 This function installs an interface in the PEI PPI database by GUID. \r
111 The purpose of the service is to publish an interface that other parties\r
112 can use to call additional PEIMs.\r
113\r
114 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
115 @param PpiList Pointer to a list of PEI PPI Descriptors.\r
116\r
117 @retval EFI_SUCCESS if all PPIs in PpiList are successfully installed.\r
118 @retval EFI_INVALID_PARAMETER if PpiList is NULL pointer\r
119 if any PPI in PpiList is not valid\r
120 @retval EFI_OUT_OF_RESOURCES if there is no more memory resource to install PPI\r
121\r
122**/\r
123EFI_STATUS\r
124EFIAPI\r
125PeiInstallPpi (\r
126 IN CONST EFI_PEI_SERVICES **PeiServices,\r
127 IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList\r
128 )\r
129{\r
130 PEI_CORE_INSTANCE *PrivateData;\r
131 INTN Index;\r
132 INTN LastCallbackInstall;\r
133\r
134\r
135 if (PpiList == NULL) {\r
136 return EFI_INVALID_PARAMETER;\r
137 }\r
138\r
139 PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
140\r
141 Index = PrivateData->PpiData.PpiListEnd;\r
142 LastCallbackInstall = Index;\r
143\r
144 //\r
145 // This is loop installs all PPI descriptors in the PpiList. It is terminated\r
146 // by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r
147 // EFI_PEI_PPI_DESCRIPTOR in the list.\r
148 //\r
149\r
150 for (;;) {\r
151 //\r
152 // Since PpiData is used for NotifyList and PpiList, max resource\r
153 // is reached if the Install reaches the NotifyList\r
154 //\r
155 if (Index == PrivateData->PpiData.NotifyListEnd + 1) {\r
156 return EFI_OUT_OF_RESOURCES;\r
157 }\r
158 //\r
159 // Check if it is a valid PPI.\r
160 // If not, rollback list to exclude all in this list.\r
161 // Try to indicate which item failed.\r
162 //\r
163 if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r
164 PrivateData->PpiData.PpiListEnd = LastCallbackInstall;\r
165 DEBUG((EFI_D_ERROR, "ERROR -> InstallPpi: %g %x\n", PpiList->Guid, PpiList->Ppi));\r
166 return EFI_INVALID_PARAMETER;\r
167 }\r
168\r
169 DEBUG((EFI_D_INFO, "Install PPI: %g\n", PpiList->Guid));\r
170 PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR*) PpiList;\r
171 PrivateData->PpiData.PpiListEnd++;\r
172\r
173 //\r
174 // Continue until the end of the PPI List.\r
175 //\r
176 if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r
177 EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r
178 break;\r
179 }\r
180 PpiList++;\r
181 Index++;\r
182 }\r
183\r
184 //\r
185 // Dispatch any callback level notifies for newly installed PPIs.\r
186 //\r
187 DispatchNotify (\r
188 PrivateData,\r
189 EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r
190 LastCallbackInstall,\r
191 PrivateData->PpiData.PpiListEnd,\r
192 PrivateData->PpiData.DispatchListEnd,\r
193 PrivateData->PpiData.NotifyListEnd\r
194 );\r
195\r
196\r
197 return EFI_SUCCESS;\r
198}\r
199\r
200/**\r
201\r
202 This function reinstalls an interface in the PEI PPI database by GUID. \r
203 The purpose of the service is to publish an interface that other parties can \r
204 use to replace an interface of the same name in the protocol database with a \r
205 different interface.\r
206\r
207 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
208 @param OldPpi Pointer to the old PEI PPI Descriptors.\r
209 @param NewPpi Pointer to the new PEI PPI Descriptors.\r
210\r
211 @retval EFI_SUCCESS if the operation was successful\r
212 @retval EFI_INVALID_PARAMETER if OldPpi or NewPpi is NULL\r
213 @retval EFI_INVALID_PARAMETER if NewPpi is not valid\r
214 @retval EFI_NOT_FOUND if the PPI was not in the database\r
215\r
216**/\r
217EFI_STATUS\r
218EFIAPI\r
219PeiReInstallPpi (\r
220 IN CONST EFI_PEI_SERVICES **PeiServices,\r
221 IN CONST EFI_PEI_PPI_DESCRIPTOR *OldPpi,\r
222 IN CONST EFI_PEI_PPI_DESCRIPTOR *NewPpi\r
223 )\r
224{\r
225 PEI_CORE_INSTANCE *PrivateData;\r
226 INTN Index;\r
227\r
228\r
229 if ((OldPpi == NULL) || (NewPpi == NULL)) {\r
230 return EFI_INVALID_PARAMETER;\r
231 }\r
232\r
233 if ((NewPpi->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r
234 return EFI_INVALID_PARAMETER;\r
235 }\r
236\r
237 PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
238\r
239 //\r
240 // Find the old PPI instance in the database. If we can not find it,\r
241 // return the EFI_NOT_FOUND error.\r
242 //\r
243 for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r
244 if (OldPpi == PrivateData->PpiData.PpiListPtrs[Index].Ppi) {\r
245 break;\r
246 }\r
247 }\r
248 if (Index == PrivateData->PpiData.PpiListEnd) {\r
249 return EFI_NOT_FOUND;\r
250 }\r
251\r
252 //\r
253 // Remove the old PPI from the database, add the new one.\r
254 //\r
255 DEBUG((EFI_D_INFO, "Reinstall PPI: %g\n", NewPpi->Guid));\r
256 PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR *) NewPpi;\r
257\r
258 //\r
259 // Dispatch any callback level notifies for the newly installed PPI.\r
260 //\r
261 DispatchNotify (\r
262 PrivateData,\r
263 EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r
264 Index,\r
265 Index+1,\r
266 PrivateData->PpiData.DispatchListEnd,\r
267 PrivateData->PpiData.NotifyListEnd\r
268 );\r
269\r
270\r
271 return EFI_SUCCESS;\r
272}\r
273\r
274/**\r
275\r
276 Locate a given named PPI.\r
277\r
278\r
279 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
280 @param Guid Pointer to GUID of the PPI.\r
281 @param Instance Instance Number to discover.\r
282 @param PpiDescriptor Pointer to reference the found descriptor. If not NULL,\r
283 returns a pointer to the descriptor (includes flags, etc)\r
284 @param Ppi Pointer to reference the found PPI\r
285\r
286 @retval EFI_SUCCESS if the PPI is in the database\r
287 @retval EFI_NOT_FOUND if the PPI is not in the database\r
288\r
289**/\r
290EFI_STATUS\r
291EFIAPI\r
292PeiLocatePpi (\r
293 IN CONST EFI_PEI_SERVICES **PeiServices,\r
294 IN CONST EFI_GUID *Guid,\r
295 IN UINTN Instance,\r
296 IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r
297 IN OUT VOID **Ppi\r
298 )\r
299{\r
300 PEI_CORE_INSTANCE *PrivateData;\r
301 INTN Index;\r
302 EFI_GUID *CheckGuid;\r
303 EFI_PEI_PPI_DESCRIPTOR *TempPtr;\r
304\r
305\r
306 PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
307\r
308 //\r
309 // Search the data base for the matching instance of the GUIDed PPI.\r
310 //\r
311 for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r
312 TempPtr = PrivateData->PpiData.PpiListPtrs[Index].Ppi;\r
313 CheckGuid = TempPtr->Guid;\r
314\r
315 //\r
316 // Don't use CompareGuid function here for performance reasons.\r
317 // Instead we compare the GUID as INT32 at a time and branch\r
318 // on the first failed comparison.\r
319 //\r
320 if ((((INT32 *)Guid)[0] == ((INT32 *)CheckGuid)[0]) &&\r
321 (((INT32 *)Guid)[1] == ((INT32 *)CheckGuid)[1]) &&\r
322 (((INT32 *)Guid)[2] == ((INT32 *)CheckGuid)[2]) &&\r
323 (((INT32 *)Guid)[3] == ((INT32 *)CheckGuid)[3])) {\r
324 if (Instance == 0) {\r
325\r
326 if (PpiDescriptor != NULL) {\r
327 *PpiDescriptor = TempPtr;\r
328 }\r
329\r
330 if (Ppi != NULL) {\r
331 *Ppi = TempPtr->Ppi;\r
332 }\r
333\r
334\r
335 return EFI_SUCCESS;\r
336 }\r
337 Instance--;\r
338 }\r
339 }\r
340\r
341 return EFI_NOT_FOUND;\r
342}\r
343\r
344/**\r
345\r
346 This function installs a notification service to be called back when a given \r
347 interface is installed or reinstalled. The purpose of the service is to publish \r
348 an interface that other parties can use to call additional PPIs that may materialize later.\r
349\r
350 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
351 @param NotifyList Pointer to list of Descriptors to notify upon.\r
352\r
353 @retval EFI_SUCCESS if successful\r
354 @retval EFI_OUT_OF_RESOURCES if no space in the database\r
355 @retval EFI_INVALID_PARAMETER if not a good decriptor\r
356\r
357**/\r
358EFI_STATUS\r
359EFIAPI\r
360PeiNotifyPpi (\r
361 IN CONST EFI_PEI_SERVICES **PeiServices,\r
362 IN CONST EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList\r
363 )\r
364{\r
365 PEI_CORE_INSTANCE *PrivateData;\r
366 INTN Index;\r
367 INTN NotifyIndex;\r
368 INTN LastCallbackNotify;\r
369 EFI_PEI_NOTIFY_DESCRIPTOR *NotifyPtr;\r
370 UINTN NotifyDispatchCount;\r
371\r
372\r
373 NotifyDispatchCount = 0;\r
374\r
375 if (NotifyList == NULL) {\r
376 return EFI_INVALID_PARAMETER;\r
377 }\r
378\r
379 PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r
380\r
381 Index = PrivateData->PpiData.NotifyListEnd;\r
382 LastCallbackNotify = Index;\r
383\r
384 //\r
385 // This is loop installs all Notify descriptors in the NotifyList. It is\r
386 // terminated by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r
387 // EFI_PEI_NOTIFY_DESCRIPTOR in the list.\r
388 //\r
389\r
390 for (;;) {\r
391 //\r
392 // Since PpiData is used for NotifyList and InstallList, max resource\r
393 // is reached if the Install reaches the PpiList\r
394 //\r
395 if (Index == PrivateData->PpiData.PpiListEnd - 1) {\r
396 return EFI_OUT_OF_RESOURCES;\r
397 }\r
398\r
399 //\r
400 // If some of the PPI data is invalid restore original Notify PPI database value\r
401 //\r
402 if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES) == 0) {\r
403 PrivateData->PpiData.NotifyListEnd = LastCallbackNotify;\r
404 DEBUG((EFI_D_ERROR, "ERROR -> InstallNotify: %g %x\n", NotifyList->Guid, NotifyList->Notify));\r
405 return EFI_INVALID_PARAMETER;\r
406 }\r
407\r
408 if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH) != 0) {\r
409 NotifyDispatchCount ++;\r
410 }\r
411\r
412 PrivateData->PpiData.PpiListPtrs[Index].Notify = (EFI_PEI_NOTIFY_DESCRIPTOR *) NotifyList;\r
413\r
414 PrivateData->PpiData.NotifyListEnd--;\r
415 DEBUG((EFI_D_INFO, "Register PPI Notify: %g\n", NotifyList->Guid));\r
416 if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r
417 EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r
418 break;\r
419 }\r
420 //\r
421 // Go the next descriptor. Remember the NotifyList moves down.\r
422 //\r
423 NotifyList++;\r
424 Index--;\r
425 }\r
426\r
427 //\r
428 // If there is Dispatch Notify PPI installed put them on the bottom\r
429 //\r
430 if (NotifyDispatchCount > 0) {\r
431 for (NotifyIndex = LastCallbackNotify; NotifyIndex > PrivateData->PpiData.NotifyListEnd; NotifyIndex--) {\r
432 if ((PrivateData->PpiData.PpiListPtrs[NotifyIndex].Notify->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH) != 0) {\r
433 NotifyPtr = PrivateData->PpiData.PpiListPtrs[NotifyIndex].Notify;\r
434\r
435 for (Index = NotifyIndex; Index < PrivateData->PpiData.DispatchListEnd; Index++){\r
436 PrivateData->PpiData.PpiListPtrs[Index].Notify = PrivateData->PpiData.PpiListPtrs[Index + 1].Notify;\r
437 }\r
438 PrivateData->PpiData.PpiListPtrs[Index].Notify = NotifyPtr;\r
439 PrivateData->PpiData.DispatchListEnd--;\r
440 }\r
441 }\r
442\r
443 LastCallbackNotify -= NotifyDispatchCount;\r
444 }\r
445\r
446 //\r
447 // Dispatch any callback level notifies for all previously installed PPIs.\r
448 //\r
449 DispatchNotify (\r
450 PrivateData,\r
451 EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r
452 0,\r
453 PrivateData->PpiData.PpiListEnd,\r
454 LastCallbackNotify,\r
455 PrivateData->PpiData.NotifyListEnd\r
456 );\r
457\r
458 return EFI_SUCCESS;\r
459}\r
460\r
461\r
462/**\r
463\r
464 Process the Notify List at dispatch level.\r
465\r
466 @param PrivateData PeiCore's private data structure.\r
467\r
468**/\r
469VOID\r
470ProcessNotifyList (\r
471 IN PEI_CORE_INSTANCE *PrivateData\r
472 )\r
473{\r
474 INTN TempValue;\r
475\r
476 while (TRUE) {\r
477 //\r
478 // Check if the PEIM that was just dispatched resulted in any\r
479 // Notifies getting installed. If so, go process any dispatch\r
480 // level Notifies that match the previouly installed PPIs.\r
481 // Use "while" instead of "if" since DispatchNotify can modify\r
482 // DispatchListEnd (with NotifyPpi) so we have to iterate until the same.\r
483 //\r
484 while (PrivateData->PpiData.LastDispatchedNotify != PrivateData->PpiData.DispatchListEnd) {\r
485 TempValue = PrivateData->PpiData.DispatchListEnd;\r
486 DispatchNotify (\r
487 PrivateData,\r
488 EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r
489 0,\r
490 PrivateData->PpiData.LastDispatchedInstall,\r
491 PrivateData->PpiData.LastDispatchedNotify,\r
492 PrivateData->PpiData.DispatchListEnd\r
493 );\r
494 PrivateData->PpiData.LastDispatchedNotify = TempValue;\r
495 }\r
496\r
497\r
498 //\r
499 // Check if the PEIM that was just dispatched resulted in any\r
500 // PPIs getting installed. If so, go process any dispatch\r
501 // level Notifies that match the installed PPIs.\r
502 // Use "while" instead of "if" since DispatchNotify can modify\r
503 // PpiListEnd (with InstallPpi) so we have to iterate until the same.\r
504 //\r
505 while (PrivateData->PpiData.LastDispatchedInstall != PrivateData->PpiData.PpiListEnd) {\r
506 TempValue = PrivateData->PpiData.PpiListEnd;\r
507 DispatchNotify (\r
508 PrivateData,\r
509 EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r
510 PrivateData->PpiData.LastDispatchedInstall,\r
511 PrivateData->PpiData.PpiListEnd,\r
512 FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1,\r
513 PrivateData->PpiData.DispatchListEnd\r
514 );\r
515 PrivateData->PpiData.LastDispatchedInstall = TempValue;\r
516 }\r
517\r
518 if (PrivateData->PpiData.LastDispatchedNotify == PrivateData->PpiData.DispatchListEnd) {\r
519 break;\r
520 }\r
521 }\r
522 return;\r
523}\r
524\r
525/**\r
526\r
527 Dispatch notifications.\r
528\r
529 @param PrivateData PeiCore's private data structure\r
530 @param NotifyType Type of notify to fire.\r
531 @param InstallStartIndex Install Beginning index.\r
532 @param InstallStopIndex Install Ending index.\r
533 @param NotifyStartIndex Notify Beginning index.\r
534 @param NotifyStopIndex Notify Ending index.\r
535\r
536**/\r
537VOID\r
538DispatchNotify (\r
539 IN PEI_CORE_INSTANCE *PrivateData,\r
540 IN UINTN NotifyType,\r
541 IN INTN InstallStartIndex,\r
542 IN INTN InstallStopIndex,\r
543 IN INTN NotifyStartIndex,\r
544 IN INTN NotifyStopIndex\r
545 )\r
546{\r
547 INTN Index1;\r
548 INTN Index2;\r
549 EFI_GUID *SearchGuid;\r
550 EFI_GUID *CheckGuid;\r
551 EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor;\r
552\r
553 //\r
554 // Remember that Installs moves up and Notifies moves down.\r
555 //\r
556 for (Index1 = NotifyStartIndex; Index1 > NotifyStopIndex; Index1--) {\r
557 NotifyDescriptor = PrivateData->PpiData.PpiListPtrs[Index1].Notify;\r
558\r
559 CheckGuid = NotifyDescriptor->Guid;\r
560\r
561 for (Index2 = InstallStartIndex; Index2 < InstallStopIndex; Index2++) {\r
562 SearchGuid = PrivateData->PpiData.PpiListPtrs[Index2].Ppi->Guid;\r
563 //\r
564 // Don't use CompareGuid function here for performance reasons.\r
565 // Instead we compare the GUID as INT32 at a time and branch\r
566 // on the first failed comparison.\r
567 //\r
568 if ((((INT32 *)SearchGuid)[0] == ((INT32 *)CheckGuid)[0]) &&\r
569 (((INT32 *)SearchGuid)[1] == ((INT32 *)CheckGuid)[1]) &&\r
570 (((INT32 *)SearchGuid)[2] == ((INT32 *)CheckGuid)[2]) &&\r
571 (((INT32 *)SearchGuid)[3] == ((INT32 *)CheckGuid)[3])) {\r
572 DEBUG ((EFI_D_INFO, "Notify: PPI Guid: %g, Peim notify entry point: %x\n",\r
573 SearchGuid,\r
574 NotifyDescriptor->Notify\r
575 ));\r
576 NotifyDescriptor->Notify (\r
577 GetPeiServicesTablePointer (),\r
578 NotifyDescriptor,\r
579 (PrivateData->PpiData.PpiListPtrs[Index2].Ppi)->Ppi\r
580 );\r
581 }\r
582 }\r
583 }\r
584}\r
585\r