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615c6dd0 | 1 | /** @file\r |
b1f6a7c6 | 2 | EFI PEI Core PPI services\r |
3 | \r | |
58dcdada | 4 | Copyright (c) 2006, Intel Corporation\r |
5 | All rights reserved. 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 | |
192f6d4c | 12 | \r |
b1f6a7c6 | 13 | **/\r |
192f6d4c | 14 | \r |
b1f6a7c6 | 15 | #include <PeiMain.h>\r |
192f6d4c | 16 | \r |
b1f6a7c6 | 17 | /**\r |
192f6d4c | 18 | \r |
b1f6a7c6 | 19 | Initialize PPI services.\r |
192f6d4c | 20 | \r |
b1f6a7c6 | 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 | |
192f6d4c | 24 | \r |
b1f6a7c6 | 25 | **/\r |
192f6d4c | 26 | VOID\r |
27 | InitializePpiServices (\r | |
b0d803fe | 28 | IN PEI_CORE_INSTANCE *PrivateData,\r |
192f6d4c | 29 | IN PEI_CORE_INSTANCE *OldCoreData\r |
30 | )\r | |
192f6d4c | 31 | {\r |
192f6d4c | 32 | if (OldCoreData == NULL) {\r |
eaf539d0 LG |
33 | PrivateData->PpiData.NotifyListEnd = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r |
34 | PrivateData->PpiData.DispatchListEnd = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r | |
35 | PrivateData->PpiData.LastDispatchedNotify = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r | |
192f6d4c | 36 | }\r |
192f6d4c | 37 | }\r |
38 | \r | |
b1f6a7c6 | 39 | /**\r |
40 | \r | |
41 | Migrate the Hob list from the CAR stack to PEI installed memory.\r | |
42 | \r | |
0f65cdaa | 43 | @param PrivateData Pointer to PeiCore's private data structure.\r |
b1f6a7c6 | 44 | @param OldCheckingBottom The old checking bottom.\r |
45 | @param OldCheckingTop The old checking top.\r | |
5c5a0601 | 46 | @param Fixup The address difference between\r |
47 | the new Hob list and old Hob list.\r | |
b1f6a7c6 | 48 | \r |
49 | **/\r | |
192f6d4c | 50 | VOID\r |
51 | ConvertPpiPointers (\r | |
40f26b8f | 52 | IN PEI_CORE_INSTANCE *PrivateData,\r |
53 | IN UINTN OldCheckingBottom,\r | |
54 | IN UINTN OldCheckingTop,\r | |
55 | IN INTN Fixup\r | |
192f6d4c | 56 | )\r |
192f6d4c | 57 | {\r |
192f6d4c | 58 | UINT8 Index;\r |
59 | PEI_PPI_LIST_POINTERS *PpiPointer;\r | |
192f6d4c | 60 | \r |
eaf539d0 | 61 | for (Index = 0; Index < FixedPcdGet32 (PcdPeiCoreMaxPpiSupported); Index++) {\r |
192f6d4c | 62 | if (Index < PrivateData->PpiData.PpiListEnd ||\r |
63 | Index > PrivateData->PpiData.NotifyListEnd) {\r | |
64 | PpiPointer = &PrivateData->PpiData.PpiListPtrs[Index];\r | |
58dcdada | 65 | \r |
66 | if (((UINTN)PpiPointer->Raw < OldCheckingTop) &&\r | |
67 | ((UINTN)PpiPointer->Raw >= OldCheckingBottom)) {\r | |
192f6d4c | 68 | //\r |
69 | // Convert the pointer to the PEIM descriptor from the old HOB heap\r | |
70 | // to the relocated HOB heap.\r | |
71 | //\r | |
72 | PpiPointer->Raw = (VOID *) ((UINTN)PpiPointer->Raw + Fixup);\r | |
73 | \r | |
74 | //\r | |
75 | // Only when the PEIM descriptor is in the old HOB should it be necessary\r | |
76 | // to try to convert the pointers in the PEIM descriptor\r | |
77 | //\r | |
58dcdada | 78 | \r |
79 | if (((UINTN)PpiPointer->Ppi->Guid < OldCheckingTop) &&\r | |
80 | ((UINTN)PpiPointer->Ppi->Guid >= OldCheckingBottom)) {\r | |
192f6d4c | 81 | //\r |
82 | // Convert the pointer to the GUID in the PPI or NOTIFY descriptor\r | |
83 | // from the old HOB heap to the relocated HOB heap.\r | |
84 | //\r | |
85 | PpiPointer->Ppi->Guid = (VOID *) ((UINTN)PpiPointer->Ppi->Guid + Fixup);\r | |
86 | }\r | |
87 | \r | |
88 | //\r | |
89 | // Assume that no code is located in the temporary memory, so the pointer to\r | |
90 | // the notification function in the NOTIFY descriptor needs not be converted.\r | |
91 | //\r | |
92 | if (Index < PrivateData->PpiData.PpiListEnd &&\r | |
58dcdada | 93 | (UINTN)PpiPointer->Ppi->Ppi < OldCheckingTop &&\r |
94 | (UINTN)PpiPointer->Ppi->Ppi >= OldCheckingBottom) {\r | |
192f6d4c | 95 | //\r |
96 | // Convert the pointer to the PPI interface structure in the PPI descriptor\r | |
97 | // from the old HOB heap to the relocated HOB heap.\r | |
98 | //\r | |
58dcdada | 99 | PpiPointer->Ppi->Ppi = (VOID *) ((UINTN)PpiPointer->Ppi->Ppi+ Fixup);\r |
192f6d4c | 100 | }\r |
101 | }\r | |
102 | }\r | |
103 | }\r | |
104 | }\r | |
105 | \r | |
b1f6a7c6 | 106 | /**\r |
192f6d4c | 107 | \r |
0f65cdaa | 108 | This function installs an interface in the PEI PPI database by GUID. \r |
109 | The purpose of the service is to publish an interface that other parties\r | |
110 | can use to call additional PEIMs.\r | |
192f6d4c | 111 | \r |
0f65cdaa | 112 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r |
113 | @param PpiList Pointer to a list of PEI PPI Descriptors.\r | |
b1f6a7c6 | 114 | \r |
0f65cdaa | 115 | @retval EFI_SUCCESS if all PPIs in PpiList are successfully installed.\r |
116 | @retval EFI_INVALID_PARAMETER if PpiList is NULL pointer\r | |
117 | @retval EFI_INVALID_PARAMETER if any PPI in PpiList is not valid\r | |
118 | @retval EFI_OUT_OF_RESOURCES if there is no more memory resource to install PPI\r | |
b1f6a7c6 | 119 | \r |
120 | **/\r | |
192f6d4c | 121 | EFI_STATUS\r |
122 | EFIAPI\r | |
123 | PeiInstallPpi (\r | |
0c2b5da8 | 124 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
125 | IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList\r | |
192f6d4c | 126 | )\r |
192f6d4c | 127 | {\r |
128 | PEI_CORE_INSTANCE *PrivateData;\r | |
129 | INTN Index;\r | |
130 | INTN LastCallbackInstall;\r | |
131 | \r | |
132 | \r | |
133 | if (PpiList == NULL) {\r | |
134 | return EFI_INVALID_PARAMETER;\r | |
135 | }\r | |
136 | \r | |
137 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
138 | \r | |
139 | Index = PrivateData->PpiData.PpiListEnd;\r | |
140 | LastCallbackInstall = Index;\r | |
141 | \r | |
142 | //\r | |
143 | // This is loop installs all PPI descriptors in the PpiList. It is terminated\r | |
144 | // by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r | |
145 | // EFI_PEI_PPI_DESCRIPTOR in the list.\r | |
146 | //\r | |
58dcdada | 147 | \r |
192f6d4c | 148 | for (;;) {\r |
149 | //\r | |
150 | // Since PpiData is used for NotifyList and InstallList, max resource\r | |
151 | // is reached if the Install reaches the NotifyList\r | |
152 | //\r | |
153 | if (Index == PrivateData->PpiData.NotifyListEnd + 1) {\r | |
154 | return EFI_OUT_OF_RESOURCES;\r | |
155 | }\r | |
156 | //\r | |
58dcdada | 157 | // Check if it is a valid PPI.\r |
192f6d4c | 158 | // If not, rollback list to exclude all in this list.\r |
159 | // Try to indicate which item failed.\r | |
160 | //\r | |
161 | if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r | |
162 | PrivateData->PpiData.PpiListEnd = LastCallbackInstall;\r | |
163 | DEBUG((EFI_D_ERROR, "ERROR -> InstallPpi: %g %x\n", PpiList->Guid, PpiList->Ppi));\r | |
164 | return EFI_INVALID_PARAMETER;\r | |
165 | }\r | |
166 | \r | |
58dcdada | 167 | DEBUG((EFI_D_INFO, "Install PPI: %g\n", PpiList->Guid));\r |
168 | PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR*) PpiList;\r | |
192f6d4c | 169 | PrivateData->PpiData.PpiListEnd++;\r |
58dcdada | 170 | \r |
192f6d4c | 171 | //\r |
172 | // Continue until the end of the PPI List.\r | |
173 | //\r | |
58dcdada | 174 | if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r |
192f6d4c | 175 | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r |
176 | break;\r | |
177 | }\r | |
178 | PpiList++;\r | |
179 | Index++;\r | |
180 | }\r | |
181 | \r | |
182 | //\r | |
183 | // Dispatch any callback level notifies for newly installed PPIs.\r | |
184 | //\r | |
185 | DispatchNotify (\r | |
b0d803fe | 186 | PrivateData,\r |
192f6d4c | 187 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
188 | LastCallbackInstall,\r | |
189 | PrivateData->PpiData.PpiListEnd,\r | |
58dcdada | 190 | PrivateData->PpiData.DispatchListEnd,\r |
192f6d4c | 191 | PrivateData->PpiData.NotifyListEnd\r |
192 | );\r | |
193 | \r | |
194 | \r | |
195 | return EFI_SUCCESS;\r | |
196 | }\r | |
197 | \r | |
b1f6a7c6 | 198 | /**\r |
199 | \r | |
0f65cdaa | 200 | This function reinstalls an interface in the PEI PPI database by GUID. \r |
201 | The purpose of the service is to publish an interface that other parties can \r | |
202 | use to replace an interface of the same name in the protocol database with a \r | |
203 | different interface.\r | |
b1f6a7c6 | 204 | \r |
0f65cdaa | 205 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r |
206 | @param OldPpi Pointer to the old PEI PPI Descriptors.\r | |
207 | @param NewPpi Pointer to the new PEI PPI Descriptors.\r | |
192f6d4c | 208 | \r |
0f65cdaa | 209 | @retval EFI_SUCCESS if the operation was successful\r |
210 | @retval EFI_INVALID_PARAMETER if OldPpi or NewPpi is NULL\r | |
211 | @retval EFI_INVALID_PARAMETER if NewPpi is not valid\r | |
212 | @retval EFI_NOT_FOUND if the PPI was not in the database\r | |
b1f6a7c6 | 213 | \r |
214 | **/\r | |
192f6d4c | 215 | EFI_STATUS\r |
216 | EFIAPI\r | |
217 | PeiReInstallPpi (\r | |
0c2b5da8 | 218 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
219 | IN CONST EFI_PEI_PPI_DESCRIPTOR *OldPpi,\r | |
220 | IN CONST EFI_PEI_PPI_DESCRIPTOR *NewPpi\r | |
192f6d4c | 221 | )\r |
192f6d4c | 222 | {\r |
223 | PEI_CORE_INSTANCE *PrivateData;\r | |
224 | INTN Index;\r | |
225 | \r | |
226 | \r | |
227 | if ((OldPpi == NULL) || (NewPpi == NULL)) {\r | |
228 | return EFI_INVALID_PARAMETER;\r | |
229 | }\r | |
230 | \r | |
231 | if ((NewPpi->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r | |
232 | return EFI_INVALID_PARAMETER;\r | |
233 | }\r | |
234 | \r | |
235 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
236 | \r | |
237 | //\r | |
238 | // Find the old PPI instance in the database. If we can not find it,\r | |
239 | // return the EFI_NOT_FOUND error.\r | |
240 | //\r | |
241 | for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r | |
242 | if (OldPpi == PrivateData->PpiData.PpiListPtrs[Index].Ppi) {\r | |
243 | break;\r | |
244 | }\r | |
245 | }\r | |
246 | if (Index == PrivateData->PpiData.PpiListEnd) {\r | |
247 | return EFI_NOT_FOUND;\r | |
248 | }\r | |
249 | \r | |
250 | //\r | |
251 | // Remove the old PPI from the database, add the new one.\r | |
58dcdada | 252 | //\r |
192f6d4c | 253 | DEBUG((EFI_D_INFO, "Reinstall PPI: %g\n", NewPpi->Guid));\r |
0c2b5da8 | 254 | PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR *) NewPpi;\r |
192f6d4c | 255 | \r |
256 | //\r | |
257 | // Dispatch any callback level notifies for the newly installed PPI.\r | |
258 | //\r | |
259 | DispatchNotify (\r | |
b0d803fe | 260 | PrivateData,\r |
192f6d4c | 261 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
262 | Index,\r | |
263 | Index+1,\r | |
58dcdada | 264 | PrivateData->PpiData.DispatchListEnd,\r |
192f6d4c | 265 | PrivateData->PpiData.NotifyListEnd\r |
266 | );\r | |
267 | \r | |
268 | \r | |
269 | return EFI_SUCCESS;\r | |
270 | }\r | |
271 | \r | |
b1f6a7c6 | 272 | /**\r |
273 | \r | |
274 | Locate a given named PPI.\r | |
275 | \r | |
192f6d4c | 276 | \r |
0f65cdaa | 277 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r |
278 | @param Guid Pointer to GUID of the PPI.\r | |
279 | @param Instance Instance Number to discover.\r | |
280 | @param PpiDescriptor Pointer to reference the found descriptor. If not NULL,\r | |
281 | returns a pointer to the descriptor (includes flags, etc)\r | |
282 | @param Ppi Pointer to reference the found PPI\r | |
b1f6a7c6 | 283 | \r |
284 | @retval EFI_SUCCESS if the PPI is in the database\r | |
285 | @retval EFI_NOT_FOUND if the PPI is not in the database\r | |
286 | \r | |
287 | **/\r | |
192f6d4c | 288 | EFI_STATUS\r |
289 | EFIAPI\r | |
290 | PeiLocatePpi (\r | |
0c2b5da8 | 291 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
292 | IN CONST EFI_GUID *Guid,\r | |
0f65cdaa | 293 | IN UINTN Instance,\r |
294 | IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r | |
295 | IN OUT VOID **Ppi\r | |
192f6d4c | 296 | )\r |
192f6d4c | 297 | {\r |
298 | PEI_CORE_INSTANCE *PrivateData;\r | |
299 | INTN Index;\r | |
300 | EFI_GUID *CheckGuid;\r | |
301 | EFI_PEI_PPI_DESCRIPTOR *TempPtr;\r | |
302 | \r | |
58dcdada | 303 | \r |
192f6d4c | 304 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r |
305 | \r | |
306 | //\r | |
307 | // Search the data base for the matching instance of the GUIDed PPI.\r | |
308 | //\r | |
309 | for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r | |
310 | TempPtr = PrivateData->PpiData.PpiListPtrs[Index].Ppi;\r | |
311 | CheckGuid = TempPtr->Guid;\r | |
312 | \r | |
313 | //\r | |
314 | // Don't use CompareGuid function here for performance reasons.\r | |
315 | // Instead we compare the GUID as INT32 at a time and branch\r | |
316 | // on the first failed comparison.\r | |
317 | //\r | |
318 | if ((((INT32 *)Guid)[0] == ((INT32 *)CheckGuid)[0]) &&\r | |
319 | (((INT32 *)Guid)[1] == ((INT32 *)CheckGuid)[1]) &&\r | |
320 | (((INT32 *)Guid)[2] == ((INT32 *)CheckGuid)[2]) &&\r | |
321 | (((INT32 *)Guid)[3] == ((INT32 *)CheckGuid)[3])) {\r | |
322 | if (Instance == 0) {\r | |
323 | \r | |
324 | if (PpiDescriptor != NULL) {\r | |
325 | *PpiDescriptor = TempPtr;\r | |
326 | }\r | |
327 | \r | |
328 | if (Ppi != NULL) {\r | |
329 | *Ppi = TempPtr->Ppi;\r | |
330 | }\r | |
331 | \r | |
332 | \r | |
333 | return EFI_SUCCESS;\r | |
334 | }\r | |
335 | Instance--;\r | |
336 | }\r | |
337 | }\r | |
338 | \r | |
339 | return EFI_NOT_FOUND;\r | |
340 | }\r | |
341 | \r | |
b1f6a7c6 | 342 | /**\r |
192f6d4c | 343 | \r |
0f65cdaa | 344 | This function installs a notification service to be called back when a given \r |
345 | interface is installed or reinstalled. The purpose of the service is to publish \r | |
346 | an interface that other parties can use to call additional PPIs that may materialize later.\r | |
b1f6a7c6 | 347 | \r |
0f65cdaa | 348 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r |
349 | @param NotifyList Pointer to list of Descriptors to notify upon.\r | |
b1f6a7c6 | 350 | \r |
351 | @retval EFI_SUCCESS if successful\r | |
352 | @retval EFI_OUT_OF_RESOURCES if no space in the database\r | |
353 | @retval EFI_INVALID_PARAMETER if not a good decriptor\r | |
354 | \r | |
355 | **/\r | |
192f6d4c | 356 | EFI_STATUS\r |
357 | EFIAPI\r | |
358 | PeiNotifyPpi (\r | |
0c2b5da8 | 359 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
360 | IN CONST EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList\r | |
192f6d4c | 361 | )\r |
192f6d4c | 362 | {\r |
363 | PEI_CORE_INSTANCE *PrivateData;\r | |
364 | INTN Index;\r | |
365 | INTN NotifyIndex;\r | |
366 | INTN LastCallbackNotify;\r | |
367 | EFI_PEI_NOTIFY_DESCRIPTOR *NotifyPtr;\r | |
368 | UINTN NotifyDispatchCount;\r | |
369 | \r | |
370 | \r | |
371 | NotifyDispatchCount = 0;\r | |
372 | \r | |
373 | if (NotifyList == NULL) {\r | |
374 | return EFI_INVALID_PARAMETER;\r | |
375 | }\r | |
376 | \r | |
377 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
378 | \r | |
379 | Index = PrivateData->PpiData.NotifyListEnd;\r | |
380 | LastCallbackNotify = Index;\r | |
381 | \r | |
382 | //\r | |
383 | // This is loop installs all Notify descriptors in the NotifyList. It is\r | |
384 | // terminated by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r | |
385 | // EFI_PEI_NOTIFY_DESCRIPTOR in the list.\r | |
386 | //\r | |
387 | \r | |
388 | for (;;) {\r | |
389 | //\r | |
390 | // Since PpiData is used for NotifyList and InstallList, max resource\r | |
391 | // is reached if the Install reaches the PpiList\r | |
392 | //\r | |
393 | if (Index == PrivateData->PpiData.PpiListEnd - 1) {\r | |
394 | return EFI_OUT_OF_RESOURCES;\r | |
395 | }\r | |
58dcdada | 396 | \r |
192f6d4c | 397 | //\r |
398 | // If some of the PPI data is invalid restore original Notify PPI database value\r | |
399 | //\r | |
400 | if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES) == 0) {\r | |
401 | PrivateData->PpiData.NotifyListEnd = LastCallbackNotify;\r | |
402 | DEBUG((EFI_D_ERROR, "ERROR -> InstallNotify: %g %x\n", NotifyList->Guid, NotifyList->Notify));\r | |
403 | return EFI_INVALID_PARAMETER;\r | |
404 | }\r | |
58dcdada | 405 | \r |
192f6d4c | 406 | if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH) != 0) {\r |
58dcdada | 407 | NotifyDispatchCount ++;\r |
408 | }\r | |
409 | \r | |
410 | PrivateData->PpiData.PpiListPtrs[Index].Notify = (EFI_PEI_NOTIFY_DESCRIPTOR *) NotifyList;\r | |
411 | \r | |
192f6d4c | 412 | PrivateData->PpiData.NotifyListEnd--;\r |
413 | DEBUG((EFI_D_INFO, "Register PPI Notify: %g\n", NotifyList->Guid));\r | |
414 | if ((NotifyList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r | |
415 | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r | |
416 | break;\r | |
417 | }\r | |
418 | //\r | |
419 | // Go the next descriptor. Remember the NotifyList moves down.\r | |
420 | //\r | |
421 | NotifyList++;\r | |
422 | Index--;\r | |
423 | }\r | |
58dcdada | 424 | \r |
192f6d4c | 425 | //\r |
58dcdada | 426 | // If there is Dispatch Notify PPI installed put them on the bottom\r |
192f6d4c | 427 | //\r |
428 | if (NotifyDispatchCount > 0) {\r | |
58dcdada | 429 | for (NotifyIndex = LastCallbackNotify; NotifyIndex > PrivateData->PpiData.NotifyListEnd; NotifyIndex--) {\r |
192f6d4c | 430 | if ((PrivateData->PpiData.PpiListPtrs[NotifyIndex].Notify->Flags & EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH) != 0) {\r |
431 | NotifyPtr = PrivateData->PpiData.PpiListPtrs[NotifyIndex].Notify;\r | |
58dcdada | 432 | \r |
192f6d4c | 433 | for (Index = NotifyIndex; Index < PrivateData->PpiData.DispatchListEnd; Index++){\r |
434 | PrivateData->PpiData.PpiListPtrs[Index].Notify = PrivateData->PpiData.PpiListPtrs[Index + 1].Notify;\r | |
435 | }\r | |
436 | PrivateData->PpiData.PpiListPtrs[Index].Notify = NotifyPtr;\r | |
58dcdada | 437 | PrivateData->PpiData.DispatchListEnd--;\r |
192f6d4c | 438 | }\r |
439 | }\r | |
58dcdada | 440 | \r |
441 | LastCallbackNotify -= NotifyDispatchCount;\r | |
192f6d4c | 442 | }\r |
58dcdada | 443 | \r |
192f6d4c | 444 | //\r |
445 | // Dispatch any callback level notifies for all previously installed PPIs.\r | |
446 | //\r | |
447 | DispatchNotify (\r | |
b0d803fe | 448 | PrivateData,\r |
192f6d4c | 449 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
450 | 0,\r | |
451 | PrivateData->PpiData.PpiListEnd,\r | |
452 | LastCallbackNotify,\r | |
453 | PrivateData->PpiData.NotifyListEnd\r | |
454 | );\r | |
58dcdada | 455 | \r |
192f6d4c | 456 | return EFI_SUCCESS;\r |
457 | }\r | |
458 | \r | |
459 | \r | |
b1f6a7c6 | 460 | /**\r |
192f6d4c | 461 | \r |
462 | Process the Notify List at dispatch level.\r | |
463 | \r | |
b1f6a7c6 | 464 | @param PrivateData PeiCore's private data structure.\r |
192f6d4c | 465 | \r |
b1f6a7c6 | 466 | **/\r |
467 | VOID\r | |
468 | ProcessNotifyList (\r | |
469 | IN PEI_CORE_INSTANCE *PrivateData\r | |
470 | )\r | |
192f6d4c | 471 | {\r |
192f6d4c | 472 | INTN TempValue;\r |
58dcdada | 473 | \r |
192f6d4c | 474 | while (TRUE) {\r |
475 | //\r | |
476 | // Check if the PEIM that was just dispatched resulted in any\r | |
477 | // Notifies getting installed. If so, go process any dispatch\r | |
478 | // level Notifies that match the previouly installed PPIs.\r | |
58dcdada | 479 | // Use "while" instead of "if" since DispatchNotify can modify\r |
192f6d4c | 480 | // DispatchListEnd (with NotifyPpi) so we have to iterate until the same.\r |
481 | //\r | |
482 | while (PrivateData->PpiData.LastDispatchedNotify != PrivateData->PpiData.DispatchListEnd) {\r | |
483 | TempValue = PrivateData->PpiData.DispatchListEnd;\r | |
484 | DispatchNotify (\r | |
b0d803fe | 485 | PrivateData,\r |
192f6d4c | 486 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r |
487 | 0,\r | |
488 | PrivateData->PpiData.LastDispatchedInstall,\r | |
489 | PrivateData->PpiData.LastDispatchedNotify,\r | |
490 | PrivateData->PpiData.DispatchListEnd\r | |
491 | );\r | |
492 | PrivateData->PpiData.LastDispatchedNotify = TempValue;\r | |
493 | }\r | |
58dcdada | 494 | \r |
495 | \r | |
192f6d4c | 496 | //\r |
497 | // Check if the PEIM that was just dispatched resulted in any\r | |
498 | // PPIs getting installed. If so, go process any dispatch\r | |
499 | // level Notifies that match the installed PPIs.\r | |
58dcdada | 500 | // Use "while" instead of "if" since DispatchNotify can modify\r |
192f6d4c | 501 | // PpiListEnd (with InstallPpi) so we have to iterate until the same.\r |
502 | //\r | |
503 | while (PrivateData->PpiData.LastDispatchedInstall != PrivateData->PpiData.PpiListEnd) {\r | |
504 | TempValue = PrivateData->PpiData.PpiListEnd;\r | |
505 | DispatchNotify (\r | |
b0d803fe | 506 | PrivateData,\r |
192f6d4c | 507 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r |
508 | PrivateData->PpiData.LastDispatchedInstall,\r | |
509 | PrivateData->PpiData.PpiListEnd,\r | |
eaf539d0 | 510 | FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1,\r |
192f6d4c | 511 | PrivateData->PpiData.DispatchListEnd\r |
512 | );\r | |
513 | PrivateData->PpiData.LastDispatchedInstall = TempValue;\r | |
514 | }\r | |
58dcdada | 515 | \r |
192f6d4c | 516 | if (PrivateData->PpiData.LastDispatchedNotify == PrivateData->PpiData.DispatchListEnd) {\r |
517 | break;\r | |
518 | }\r | |
58dcdada | 519 | }\r |
192f6d4c | 520 | return;\r |
521 | }\r | |
522 | \r | |
b1f6a7c6 | 523 | /**\r |
524 | \r | |
525 | Dispatch notifications.\r | |
526 | \r | |
527 | @param PrivateData PeiCore's private data structure\r | |
528 | @param NotifyType Type of notify to fire.\r | |
529 | @param InstallStartIndex Install Beginning index.\r | |
530 | @param InstallStopIndex Install Ending index.\r | |
531 | @param NotifyStartIndex Notify Beginning index.\r | |
532 | @param NotifyStopIndex Notify Ending index.\r | |
533 | \r | |
534 | **/\r | |
192f6d4c | 535 | VOID\r |
536 | DispatchNotify (\r | |
b0d803fe | 537 | IN PEI_CORE_INSTANCE *PrivateData,\r |
192f6d4c | 538 | IN UINTN NotifyType,\r |
539 | IN INTN InstallStartIndex,\r | |
540 | IN INTN InstallStopIndex,\r | |
541 | IN INTN NotifyStartIndex,\r | |
542 | IN INTN NotifyStopIndex\r | |
543 | )\r | |
192f6d4c | 544 | {\r |
192f6d4c | 545 | INTN Index1;\r |
546 | INTN Index2;\r | |
547 | EFI_GUID *SearchGuid;\r | |
548 | EFI_GUID *CheckGuid;\r | |
549 | EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor;\r | |
550 | \r | |
192f6d4c | 551 | //\r |
552 | // Remember that Installs moves up and Notifies moves down.\r | |
553 | //\r | |
554 | for (Index1 = NotifyStartIndex; Index1 > NotifyStopIndex; Index1--) {\r | |
555 | NotifyDescriptor = PrivateData->PpiData.PpiListPtrs[Index1].Notify;\r | |
556 | \r | |
557 | CheckGuid = NotifyDescriptor->Guid;\r | |
558 | \r | |
559 | for (Index2 = InstallStartIndex; Index2 < InstallStopIndex; Index2++) {\r | |
560 | SearchGuid = PrivateData->PpiData.PpiListPtrs[Index2].Ppi->Guid;\r | |
561 | //\r | |
562 | // Don't use CompareGuid function here for performance reasons.\r | |
563 | // Instead we compare the GUID as INT32 at a time and branch\r | |
564 | // on the first failed comparison.\r | |
565 | //\r | |
566 | if ((((INT32 *)SearchGuid)[0] == ((INT32 *)CheckGuid)[0]) &&\r | |
567 | (((INT32 *)SearchGuid)[1] == ((INT32 *)CheckGuid)[1]) &&\r | |
568 | (((INT32 *)SearchGuid)[2] == ((INT32 *)CheckGuid)[2]) &&\r | |
569 | (((INT32 *)SearchGuid)[3] == ((INT32 *)CheckGuid)[3])) {\r | |
58dcdada | 570 | DEBUG ((EFI_D_INFO, "Notify: PPI Guid: %g, Peim notify entry point: %x\n",\r |
571 | SearchGuid,\r | |
192f6d4c | 572 | NotifyDescriptor->Notify\r |
573 | ));\r | |
574 | NotifyDescriptor->Notify (\r | |
b0d803fe | 575 | GetPeiServicesTablePointer (),\r |
192f6d4c | 576 | NotifyDescriptor,\r |
577 | (PrivateData->PpiData.PpiListPtrs[Index2].Ppi)->Ppi\r | |
578 | );\r | |
579 | }\r | |
580 | }\r | |
581 | }\r | |
192f6d4c | 582 | }\r |
583 | \r |