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192f6d4c | 1 | /*++\r |
2 | \r | |
58dcdada | 3 | Copyright (c) 2006, Intel Corporation\r |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
192f6d4c | 11 | \r |
12 | Module Name:\r | |
13 | \r | |
14 | Ppi.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | EFI PEI Core PPI services\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
192f6d4c | 24 | #include <PeiMain.h>\r |
25 | \r | |
26 | VOID\r | |
27 | InitializePpiServices (\r | |
b0d803fe | 28 | IN PEI_CORE_INSTANCE *PrivateData,\r |
192f6d4c | 29 | IN PEI_CORE_INSTANCE *OldCoreData\r |
30 | )\r | |
31 | /*++\r | |
32 | \r | |
33 | Routine Description:\r | |
34 | \r | |
35 | Initialize PPI services.\r | |
36 | \r | |
37 | Arguments:\r | |
38 | \r | |
39 | PeiServices - The PEI core services table.\r | |
40 | OldCoreData - Pointer to the PEI Core data.\r | |
41 | NULL if being run in non-permament memory mode.\r | |
42 | \r | |
43 | Returns:\r | |
44 | Nothing\r | |
45 | \r | |
46 | --*/\r | |
47 | {\r | |
192f6d4c | 48 | if (OldCoreData == NULL) {\r |
192f6d4c | 49 | PrivateData->PpiData.NotifyListEnd = MAX_PPI_DESCRIPTORS-1;\r |
50 | PrivateData->PpiData.DispatchListEnd = MAX_PPI_DESCRIPTORS-1;\r | |
51 | PrivateData->PpiData.LastDispatchedNotify = MAX_PPI_DESCRIPTORS-1;\r | |
52 | }\r | |
58dcdada | 53 | \r |
54 | return;\r | |
192f6d4c | 55 | }\r |
56 | \r | |
57 | VOID\r | |
58 | ConvertPpiPointers (\r | |
0c2b5da8 | 59 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
58dcdada | 60 | IN UINTN OldCheckingBottom,\r |
61 | IN UINTN OldCheckingTop,\r | |
192f6d4c | 62 | IN EFI_HOB_HANDOFF_INFO_TABLE *NewHandOffHob\r |
63 | )\r | |
64 | /*++\r | |
65 | \r | |
66 | Routine Description:\r | |
67 | \r | |
68 | Migrate the Hob list from the CAR stack to PEI installed memory.\r | |
69 | \r | |
70 | Arguments:\r | |
71 | \r | |
58dcdada | 72 | PeiServices - The PEI core services table.\r |
73 | OldCheckingBottom - The old checking bottom.\r | |
74 | OldCheckingTop - The old checking top.\r | |
75 | NewHandOffHob - The new handoff HOB list.\r | |
192f6d4c | 76 | \r |
77 | Returns:\r | |
58dcdada | 78 | \r |
192f6d4c | 79 | --*/\r |
80 | {\r | |
81 | PEI_CORE_INSTANCE *PrivateData;\r | |
82 | UINT8 Index;\r | |
83 | PEI_PPI_LIST_POINTERS *PpiPointer;\r | |
84 | UINTN Fixup;\r | |
85 | \r | |
86 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
87 | \r | |
58dcdada | 88 | Fixup = (UINTN)NewHandOffHob - OldCheckingBottom;\r |
89 | \r | |
192f6d4c | 90 | for (Index = 0; Index < MAX_PPI_DESCRIPTORS; Index++) {\r |
91 | if (Index < PrivateData->PpiData.PpiListEnd ||\r | |
92 | Index > PrivateData->PpiData.NotifyListEnd) {\r | |
93 | PpiPointer = &PrivateData->PpiData.PpiListPtrs[Index];\r | |
58dcdada | 94 | \r |
95 | if (((UINTN)PpiPointer->Raw < OldCheckingTop) &&\r | |
96 | ((UINTN)PpiPointer->Raw >= OldCheckingBottom)) {\r | |
192f6d4c | 97 | //\r |
98 | // Convert the pointer to the PEIM descriptor from the old HOB heap\r | |
99 | // to the relocated HOB heap.\r | |
100 | //\r | |
101 | PpiPointer->Raw = (VOID *) ((UINTN)PpiPointer->Raw + Fixup);\r | |
102 | \r | |
103 | //\r | |
104 | // Only when the PEIM descriptor is in the old HOB should it be necessary\r | |
105 | // to try to convert the pointers in the PEIM descriptor\r | |
106 | //\r | |
58dcdada | 107 | \r |
108 | if (((UINTN)PpiPointer->Ppi->Guid < OldCheckingTop) &&\r | |
109 | ((UINTN)PpiPointer->Ppi->Guid >= OldCheckingBottom)) {\r | |
192f6d4c | 110 | //\r |
111 | // Convert the pointer to the GUID in the PPI or NOTIFY descriptor\r | |
112 | // from the old HOB heap to the relocated HOB heap.\r | |
113 | //\r | |
114 | PpiPointer->Ppi->Guid = (VOID *) ((UINTN)PpiPointer->Ppi->Guid + Fixup);\r | |
115 | }\r | |
116 | \r | |
117 | //\r | |
118 | // Assume that no code is located in the temporary memory, so the pointer to\r | |
119 | // the notification function in the NOTIFY descriptor needs not be converted.\r | |
120 | //\r | |
121 | if (Index < PrivateData->PpiData.PpiListEnd &&\r | |
58dcdada | 122 | (UINTN)PpiPointer->Ppi->Ppi < OldCheckingTop &&\r |
123 | (UINTN)PpiPointer->Ppi->Ppi >= OldCheckingBottom) {\r | |
192f6d4c | 124 | //\r |
125 | // Convert the pointer to the PPI interface structure in the PPI descriptor\r | |
126 | // from the old HOB heap to the relocated HOB heap.\r | |
127 | //\r | |
58dcdada | 128 | PpiPointer->Ppi->Ppi = (VOID *) ((UINTN)PpiPointer->Ppi->Ppi+ Fixup);\r |
192f6d4c | 129 | }\r |
130 | }\r | |
131 | }\r | |
132 | }\r | |
133 | }\r | |
134 | \r | |
135 | \r | |
136 | \r | |
137 | EFI_STATUS\r | |
138 | EFIAPI\r | |
139 | PeiInstallPpi (\r | |
0c2b5da8 | 140 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
141 | IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList\r | |
192f6d4c | 142 | )\r |
143 | /*++\r | |
144 | \r | |
145 | Routine Description:\r | |
146 | \r | |
147 | Install PPI services.\r | |
148 | \r | |
149 | Arguments:\r | |
150 | \r | |
151 | PeiServices - Pointer to the PEI Service Table\r | |
152 | PpiList - Pointer to a list of PEI PPI Descriptors.\r | |
153 | \r | |
154 | Returns:\r | |
155 | \r | |
156 | EFI_SUCCESS - if all PPIs in PpiList are successfully installed.\r | |
157 | EFI_INVALID_PARAMETER - if PpiList is NULL pointer\r | |
158 | EFI_INVALID_PARAMETER - if any PPI in PpiList is not valid\r | |
159 | EFI_OUT_OF_RESOURCES - if there is no more memory resource to install PPI\r | |
160 | \r | |
161 | --*/\r | |
162 | {\r | |
163 | PEI_CORE_INSTANCE *PrivateData;\r | |
164 | INTN Index;\r | |
165 | INTN LastCallbackInstall;\r | |
166 | \r | |
167 | \r | |
168 | if (PpiList == NULL) {\r | |
169 | return EFI_INVALID_PARAMETER;\r | |
170 | }\r | |
171 | \r | |
172 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
173 | \r | |
174 | Index = PrivateData->PpiData.PpiListEnd;\r | |
175 | LastCallbackInstall = Index;\r | |
176 | \r | |
177 | //\r | |
178 | // This is loop installs all PPI descriptors in the PpiList. It is terminated\r | |
179 | // by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r | |
180 | // EFI_PEI_PPI_DESCRIPTOR in the list.\r | |
181 | //\r | |
58dcdada | 182 | \r |
192f6d4c | 183 | for (;;) {\r |
184 | //\r | |
185 | // Since PpiData is used for NotifyList and InstallList, max resource\r | |
186 | // is reached if the Install reaches the NotifyList\r | |
187 | //\r | |
188 | if (Index == PrivateData->PpiData.NotifyListEnd + 1) {\r | |
189 | return EFI_OUT_OF_RESOURCES;\r | |
190 | }\r | |
191 | //\r | |
58dcdada | 192 | // Check if it is a valid PPI.\r |
192f6d4c | 193 | // If not, rollback list to exclude all in this list.\r |
194 | // Try to indicate which item failed.\r | |
195 | //\r | |
196 | if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r | |
197 | PrivateData->PpiData.PpiListEnd = LastCallbackInstall;\r | |
198 | DEBUG((EFI_D_ERROR, "ERROR -> InstallPpi: %g %x\n", PpiList->Guid, PpiList->Ppi));\r | |
199 | return EFI_INVALID_PARAMETER;\r | |
200 | }\r | |
201 | \r | |
58dcdada | 202 | DEBUG((EFI_D_INFO, "Install PPI: %g\n", PpiList->Guid));\r |
203 | PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR*) PpiList;\r | |
192f6d4c | 204 | PrivateData->PpiData.PpiListEnd++;\r |
58dcdada | 205 | \r |
192f6d4c | 206 | //\r |
207 | // Continue until the end of the PPI List.\r | |
208 | //\r | |
58dcdada | 209 | if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r |
192f6d4c | 210 | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r |
211 | break;\r | |
212 | }\r | |
213 | PpiList++;\r | |
214 | Index++;\r | |
215 | }\r | |
216 | \r | |
217 | //\r | |
218 | // Dispatch any callback level notifies for newly installed PPIs.\r | |
219 | //\r | |
220 | DispatchNotify (\r | |
b0d803fe | 221 | PrivateData,\r |
192f6d4c | 222 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
223 | LastCallbackInstall,\r | |
224 | PrivateData->PpiData.PpiListEnd,\r | |
58dcdada | 225 | PrivateData->PpiData.DispatchListEnd,\r |
192f6d4c | 226 | PrivateData->PpiData.NotifyListEnd\r |
227 | );\r | |
228 | \r | |
229 | \r | |
230 | return EFI_SUCCESS;\r | |
231 | }\r | |
232 | \r | |
233 | \r | |
234 | EFI_STATUS\r | |
235 | EFIAPI\r | |
236 | PeiReInstallPpi (\r | |
0c2b5da8 | 237 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
238 | IN CONST EFI_PEI_PPI_DESCRIPTOR *OldPpi,\r | |
239 | IN CONST EFI_PEI_PPI_DESCRIPTOR *NewPpi\r | |
192f6d4c | 240 | )\r |
241 | /*++\r | |
242 | \r | |
243 | Routine Description:\r | |
244 | \r | |
245 | Re-Install PPI services.\r | |
246 | \r | |
247 | Arguments:\r | |
248 | \r | |
249 | PeiServices - Pointer to the PEI Service Table\r | |
250 | OldPpi - Pointer to the old PEI PPI Descriptors.\r | |
251 | NewPpi - Pointer to the new PEI PPI Descriptors.\r | |
252 | \r | |
253 | Returns:\r | |
254 | \r | |
255 | EFI_SUCCESS - if the operation was successful\r | |
256 | EFI_INVALID_PARAMETER - if OldPpi or NewPpi is NULL\r | |
257 | EFI_INVALID_PARAMETER - if NewPpi is not valid\r | |
258 | EFI_NOT_FOUND - if the PPI was not in the database\r | |
259 | \r | |
260 | --*/\r | |
261 | {\r | |
262 | PEI_CORE_INSTANCE *PrivateData;\r | |
263 | INTN Index;\r | |
264 | \r | |
265 | \r | |
266 | if ((OldPpi == NULL) || (NewPpi == NULL)) {\r | |
267 | return EFI_INVALID_PARAMETER;\r | |
268 | }\r | |
269 | \r | |
270 | if ((NewPpi->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r | |
271 | return EFI_INVALID_PARAMETER;\r | |
272 | }\r | |
273 | \r | |
274 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
275 | \r | |
276 | //\r | |
277 | // Find the old PPI instance in the database. If we can not find it,\r | |
278 | // return the EFI_NOT_FOUND error.\r | |
279 | //\r | |
280 | for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r | |
281 | if (OldPpi == PrivateData->PpiData.PpiListPtrs[Index].Ppi) {\r | |
282 | break;\r | |
283 | }\r | |
284 | }\r | |
285 | if (Index == PrivateData->PpiData.PpiListEnd) {\r | |
286 | return EFI_NOT_FOUND;\r | |
287 | }\r | |
288 | \r | |
289 | //\r | |
290 | // Remove the old PPI from the database, add the new one.\r | |
58dcdada | 291 | //\r |
192f6d4c | 292 | DEBUG((EFI_D_INFO, "Reinstall PPI: %g\n", NewPpi->Guid));\r |
0c2b5da8 | 293 | PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR *) NewPpi;\r |
192f6d4c | 294 | \r |
295 | //\r | |
296 | // Dispatch any callback level notifies for the newly installed PPI.\r | |
297 | //\r | |
298 | DispatchNotify (\r | |
b0d803fe | 299 | PrivateData,\r |
192f6d4c | 300 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
301 | Index,\r | |
302 | Index+1,\r | |
58dcdada | 303 | PrivateData->PpiData.DispatchListEnd,\r |
192f6d4c | 304 | PrivateData->PpiData.NotifyListEnd\r |
305 | );\r | |
306 | \r | |
307 | \r | |
308 | return EFI_SUCCESS;\r | |
309 | }\r | |
310 | \r | |
311 | \r | |
312 | EFI_STATUS\r | |
313 | EFIAPI\r | |
314 | PeiLocatePpi (\r | |
0c2b5da8 | 315 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
316 | IN CONST EFI_GUID *Guid,\r | |
192f6d4c | 317 | IN UINTN Instance,\r |
318 | IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r | |
319 | IN OUT VOID **Ppi\r | |
320 | )\r | |
321 | /*++\r | |
322 | \r | |
323 | Routine Description:\r | |
324 | \r | |
325 | Locate a given named PPI.\r | |
326 | \r | |
327 | Arguments:\r | |
328 | \r | |
329 | PeiServices - Pointer to the PEI Service Table\r | |
330 | Guid - Pointer to GUID of the PPI.\r | |
331 | Instance - Instance Number to discover.\r | |
332 | PpiDescriptor - Pointer to reference the found descriptor. If not NULL,\r | |
333 | returns a pointer to the descriptor (includes flags, etc)\r | |
334 | Ppi - Pointer to reference the found PPI\r | |
335 | \r | |
336 | Returns:\r | |
337 | \r | |
58dcdada | 338 | Status - EFI_SUCCESS if the PPI is in the database\r |
192f6d4c | 339 | EFI_NOT_FOUND if the PPI is not in the database\r |
340 | --*/\r | |
341 | {\r | |
342 | PEI_CORE_INSTANCE *PrivateData;\r | |
343 | INTN Index;\r | |
344 | EFI_GUID *CheckGuid;\r | |
345 | EFI_PEI_PPI_DESCRIPTOR *TempPtr;\r | |
346 | \r | |
58dcdada | 347 | \r |
192f6d4c | 348 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r |
349 | \r | |
350 | //\r | |
351 | // Search the data base for the matching instance of the GUIDed PPI.\r | |
352 | //\r | |
353 | for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r | |
354 | TempPtr = PrivateData->PpiData.PpiListPtrs[Index].Ppi;\r | |
355 | CheckGuid = TempPtr->Guid;\r | |
356 | \r | |
357 | //\r | |
358 | // Don't use CompareGuid function here for performance reasons.\r | |
359 | // Instead we compare the GUID as INT32 at a time and branch\r | |
360 | // on the first failed comparison.\r | |
361 | //\r | |
362 | if ((((INT32 *)Guid)[0] == ((INT32 *)CheckGuid)[0]) &&\r | |
363 | (((INT32 *)Guid)[1] == ((INT32 *)CheckGuid)[1]) &&\r | |
364 | (((INT32 *)Guid)[2] == ((INT32 *)CheckGuid)[2]) &&\r | |
365 | (((INT32 *)Guid)[3] == ((INT32 *)CheckGuid)[3])) {\r | |
366 | if (Instance == 0) {\r | |
367 | \r | |
368 | if (PpiDescriptor != NULL) {\r | |
369 | *PpiDescriptor = TempPtr;\r | |
370 | }\r | |
371 | \r | |
372 | if (Ppi != NULL) {\r | |
373 | *Ppi = TempPtr->Ppi;\r | |
374 | }\r | |
375 | \r | |
376 | \r | |
377 | return EFI_SUCCESS;\r | |
378 | }\r | |
379 | Instance--;\r | |
380 | }\r | |
381 | }\r | |
382 | \r | |
383 | return EFI_NOT_FOUND;\r | |
384 | }\r | |
385 | \r | |
386 | \r | |
387 | EFI_STATUS\r | |
388 | EFIAPI\r | |
389 | PeiNotifyPpi (\r | |
0c2b5da8 | 390 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
391 | IN CONST EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList\r | |
192f6d4c | 392 | )\r |
393 | /*++\r | |
394 | \r | |
395 | Routine Description:\r | |
396 | \r | |
397 | Install a notification for a given PPI.\r | |
398 | \r | |
399 | Arguments:\r | |
400 | \r | |
401 | PeiServices - Pointer to the PEI Service Table\r | |
402 | NotifyList - Pointer to list of Descriptors to notify upon.\r | |
403 | \r | |
404 | Returns:\r | |
405 | \r | |
406 | Status - EFI_SUCCESS if successful\r | |
407 | EFI_OUT_OF_RESOURCES if no space in the database\r | |
408 | EFI_INVALID_PARAMETER if not a good decriptor\r | |
409 | \r | |
410 | --*/\r | |
411 | {\r | |
412 | PEI_CORE_INSTANCE *PrivateData;\r | |
413 | INTN Index;\r | |
414 | INTN NotifyIndex;\r | |
415 | INTN LastCallbackNotify;\r | |
416 | EFI_PEI_NOTIFY_DESCRIPTOR *NotifyPtr;\r | |
417 | UINTN NotifyDispatchCount;\r | |
418 | \r | |
419 | \r | |
420 | NotifyDispatchCount = 0;\r | |
421 | \r | |
422 | if (NotifyList == NULL) {\r | |
423 | return EFI_INVALID_PARAMETER;\r | |
424 | }\r | |
425 | \r | |
426 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
427 | \r | |
428 | Index = PrivateData->PpiData.NotifyListEnd;\r | |
429 | LastCallbackNotify = Index;\r | |
430 | \r | |
431 | //\r | |
432 | // This is loop installs all Notify descriptors in the NotifyList. It is\r | |
433 | // terminated by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r | |
434 | // EFI_PEI_NOTIFY_DESCRIPTOR in the list.\r | |
435 | //\r | |
436 | \r | |
437 | for (;;) {\r | |
438 | //\r | |
439 | // Since PpiData is used for NotifyList and InstallList, max resource\r | |
440 | // is reached if the Install reaches the PpiList\r | |
441 | //\r | |
442 | if (Index == PrivateData->PpiData.PpiListEnd - 1) {\r | |
443 | return EFI_OUT_OF_RESOURCES;\r | |
444 | }\r | |
58dcdada | 445 | \r |
192f6d4c | 446 | //\r |
447 | // If some of the PPI data is invalid restore original Notify PPI database value\r | |
448 | //\r | |
449 | if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES) == 0) {\r | |
450 | PrivateData->PpiData.NotifyListEnd = LastCallbackNotify;\r | |
451 | DEBUG((EFI_D_ERROR, "ERROR -> InstallNotify: %g %x\n", NotifyList->Guid, NotifyList->Notify));\r | |
452 | return EFI_INVALID_PARAMETER;\r | |
453 | }\r | |
58dcdada | 454 | \r |
192f6d4c | 455 | if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH) != 0) {\r |
58dcdada | 456 | NotifyDispatchCount ++;\r |
457 | }\r | |
458 | \r | |
459 | PrivateData->PpiData.PpiListPtrs[Index].Notify = (EFI_PEI_NOTIFY_DESCRIPTOR *) NotifyList;\r | |
460 | \r | |
192f6d4c | 461 | PrivateData->PpiData.NotifyListEnd--;\r |
462 | DEBUG((EFI_D_INFO, "Register PPI Notify: %g\n", NotifyList->Guid));\r | |
463 | if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r | |
464 | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r | |
465 | break;\r | |
466 | }\r | |
467 | //\r | |
468 | // Go the next descriptor. Remember the NotifyList moves down.\r | |
469 | //\r | |
470 | NotifyList++;\r | |
471 | Index--;\r | |
472 | }\r | |
58dcdada | 473 | \r |
192f6d4c | 474 | //\r |
58dcdada | 475 | // If there is Dispatch Notify PPI installed put them on the bottom\r |
192f6d4c | 476 | //\r |
477 | if (NotifyDispatchCount > 0) {\r | |
58dcdada | 478 | for (NotifyIndex = LastCallbackNotify; NotifyIndex > PrivateData->PpiData.NotifyListEnd; NotifyIndex--) {\r |
192f6d4c | 479 | if ((PrivateData->PpiData.PpiListPtrs[NotifyIndex].Notify->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH) != 0) {\r |
480 | NotifyPtr = PrivateData->PpiData.PpiListPtrs[NotifyIndex].Notify;\r | |
58dcdada | 481 | \r |
192f6d4c | 482 | for (Index = NotifyIndex; Index < PrivateData->PpiData.DispatchListEnd; Index++){\r |
483 | PrivateData->PpiData.PpiListPtrs[Index].Notify = PrivateData->PpiData.PpiListPtrs[Index + 1].Notify;\r | |
484 | }\r | |
485 | PrivateData->PpiData.PpiListPtrs[Index].Notify = NotifyPtr;\r | |
58dcdada | 486 | PrivateData->PpiData.DispatchListEnd--;\r |
192f6d4c | 487 | }\r |
488 | }\r | |
58dcdada | 489 | \r |
490 | LastCallbackNotify -= NotifyDispatchCount;\r | |
192f6d4c | 491 | }\r |
58dcdada | 492 | \r |
192f6d4c | 493 | //\r |
494 | // Dispatch any callback level notifies for all previously installed PPIs.\r | |
495 | //\r | |
496 | DispatchNotify (\r | |
b0d803fe | 497 | PrivateData,\r |
192f6d4c | 498 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
499 | 0,\r | |
500 | PrivateData->PpiData.PpiListEnd,\r | |
501 | LastCallbackNotify,\r | |
502 | PrivateData->PpiData.NotifyListEnd\r | |
503 | );\r | |
58dcdada | 504 | \r |
505 | \r | |
192f6d4c | 506 | return EFI_SUCCESS;\r |
507 | }\r | |
508 | \r | |
509 | \r | |
510 | VOID\r | |
511 | ProcessNotifyList (\r | |
b0d803fe | 512 | IN PEI_CORE_INSTANCE *PrivateData\r |
192f6d4c | 513 | )\r |
514 | /*++\r | |
515 | \r | |
516 | Routine Description:\r | |
517 | \r | |
518 | Process the Notify List at dispatch level.\r | |
519 | \r | |
520 | Arguments:\r | |
521 | \r | |
522 | PeiServices - Pointer to the PEI Service Table\r | |
523 | \r | |
524 | Returns:\r | |
525 | \r | |
526 | --*/\r | |
527 | \r | |
528 | {\r | |
192f6d4c | 529 | INTN TempValue;\r |
58dcdada | 530 | \r |
192f6d4c | 531 | while (TRUE) {\r |
532 | //\r | |
533 | // Check if the PEIM that was just dispatched resulted in any\r | |
534 | // Notifies getting installed. If so, go process any dispatch\r | |
535 | // level Notifies that match the previouly installed PPIs.\r | |
58dcdada | 536 | // Use "while" instead of "if" since DispatchNotify can modify\r |
192f6d4c | 537 | // DispatchListEnd (with NotifyPpi) so we have to iterate until the same.\r |
538 | //\r | |
539 | while (PrivateData->PpiData.LastDispatchedNotify != PrivateData->PpiData.DispatchListEnd) {\r | |
540 | TempValue = PrivateData->PpiData.DispatchListEnd;\r | |
541 | DispatchNotify (\r | |
b0d803fe | 542 | PrivateData,\r |
192f6d4c | 543 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r |
544 | 0,\r | |
545 | PrivateData->PpiData.LastDispatchedInstall,\r | |
546 | PrivateData->PpiData.LastDispatchedNotify,\r | |
547 | PrivateData->PpiData.DispatchListEnd\r | |
548 | );\r | |
549 | PrivateData->PpiData.LastDispatchedNotify = TempValue;\r | |
550 | }\r | |
58dcdada | 551 | \r |
552 | \r | |
192f6d4c | 553 | //\r |
554 | // Check if the PEIM that was just dispatched resulted in any\r | |
555 | // PPIs getting installed. If so, go process any dispatch\r | |
556 | // level Notifies that match the installed PPIs.\r | |
58dcdada | 557 | // Use "while" instead of "if" since DispatchNotify can modify\r |
192f6d4c | 558 | // PpiListEnd (with InstallPpi) so we have to iterate until the same.\r |
559 | //\r | |
560 | while (PrivateData->PpiData.LastDispatchedInstall != PrivateData->PpiData.PpiListEnd) {\r | |
561 | TempValue = PrivateData->PpiData.PpiListEnd;\r | |
562 | DispatchNotify (\r | |
b0d803fe | 563 | PrivateData,\r |
192f6d4c | 564 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r |
565 | PrivateData->PpiData.LastDispatchedInstall,\r | |
566 | PrivateData->PpiData.PpiListEnd,\r | |
567 | MAX_PPI_DESCRIPTORS-1,\r | |
568 | PrivateData->PpiData.DispatchListEnd\r | |
569 | );\r | |
570 | PrivateData->PpiData.LastDispatchedInstall = TempValue;\r | |
571 | }\r | |
58dcdada | 572 | \r |
192f6d4c | 573 | if (PrivateData->PpiData.LastDispatchedNotify == PrivateData->PpiData.DispatchListEnd) {\r |
574 | break;\r | |
575 | }\r | |
58dcdada | 576 | }\r |
192f6d4c | 577 | return;\r |
578 | }\r | |
579 | \r | |
580 | VOID\r | |
581 | DispatchNotify (\r | |
b0d803fe | 582 | IN PEI_CORE_INSTANCE *PrivateData,\r |
192f6d4c | 583 | IN UINTN NotifyType,\r |
584 | IN INTN InstallStartIndex,\r | |
585 | IN INTN InstallStopIndex,\r | |
586 | IN INTN NotifyStartIndex,\r | |
587 | IN INTN NotifyStopIndex\r | |
588 | )\r | |
589 | /*++\r | |
590 | \r | |
591 | Routine Description:\r | |
592 | \r | |
593 | Dispatch notifications.\r | |
594 | \r | |
595 | Arguments:\r | |
596 | \r | |
597 | PeiServices - Pointer to the PEI Service Table\r | |
598 | NotifyType - Type of notify to fire.\r | |
599 | InstallStartIndex - Install Beginning index.\r | |
600 | InstallStopIndex - Install Ending index.\r | |
601 | NotifyStartIndex - Notify Beginning index.\r | |
602 | NotifyStopIndex - Notify Ending index.\r | |
603 | \r | |
604 | Returns: None\r | |
605 | \r | |
606 | --*/\r | |
607 | \r | |
608 | {\r | |
192f6d4c | 609 | INTN Index1;\r |
610 | INTN Index2;\r | |
611 | EFI_GUID *SearchGuid;\r | |
612 | EFI_GUID *CheckGuid;\r | |
613 | EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor;\r | |
614 | \r | |
192f6d4c | 615 | //\r |
616 | // Remember that Installs moves up and Notifies moves down.\r | |
617 | //\r | |
618 | for (Index1 = NotifyStartIndex; Index1 > NotifyStopIndex; Index1--) {\r | |
619 | NotifyDescriptor = PrivateData->PpiData.PpiListPtrs[Index1].Notify;\r | |
620 | \r | |
621 | CheckGuid = NotifyDescriptor->Guid;\r | |
622 | \r | |
623 | for (Index2 = InstallStartIndex; Index2 < InstallStopIndex; Index2++) {\r | |
624 | SearchGuid = PrivateData->PpiData.PpiListPtrs[Index2].Ppi->Guid;\r | |
625 | //\r | |
626 | // Don't use CompareGuid function here for performance reasons.\r | |
627 | // Instead we compare the GUID as INT32 at a time and branch\r | |
628 | // on the first failed comparison.\r | |
629 | //\r | |
630 | if ((((INT32 *)SearchGuid)[0] == ((INT32 *)CheckGuid)[0]) &&\r | |
631 | (((INT32 *)SearchGuid)[1] == ((INT32 *)CheckGuid)[1]) &&\r | |
632 | (((INT32 *)SearchGuid)[2] == ((INT32 *)CheckGuid)[2]) &&\r | |
633 | (((INT32 *)SearchGuid)[3] == ((INT32 *)CheckGuid)[3])) {\r | |
58dcdada | 634 | DEBUG ((EFI_D_INFO, "Notify: PPI Guid: %g, Peim notify entry point: %x\n",\r |
635 | SearchGuid,\r | |
192f6d4c | 636 | NotifyDescriptor->Notify\r |
637 | ));\r | |
638 | NotifyDescriptor->Notify (\r | |
b0d803fe | 639 | GetPeiServicesTablePointer (),\r |
192f6d4c | 640 | NotifyDescriptor,\r |
641 | (PrivateData->PpiData.PpiListPtrs[Index2].Ppi)->Ppi\r | |
642 | );\r | |
643 | }\r | |
644 | }\r | |
645 | }\r | |
646 | \r | |
647 | return;\r | |
648 | }\r | |
649 | \r |