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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 |
192f6d4c | 21 | \r |
b1f6a7c6 | 22 | @param PrivateData Pointer to the PEI Core data.\r |
23 | @param OldCoreData Pointer to old PEI Core data. \r | |
24 | NULL if being run in non-permament memory mode.\r | |
192f6d4c | 25 | \r |
b1f6a7c6 | 26 | **/\r |
192f6d4c | 27 | VOID\r |
28 | InitializePpiServices (\r | |
b0d803fe | 29 | IN PEI_CORE_INSTANCE *PrivateData,\r |
192f6d4c | 30 | IN PEI_CORE_INSTANCE *OldCoreData\r |
31 | )\r | |
192f6d4c | 32 | {\r |
192f6d4c | 33 | if (OldCoreData == NULL) {\r |
eaf539d0 LG |
34 | PrivateData->PpiData.NotifyListEnd = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r |
35 | PrivateData->PpiData.DispatchListEnd = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r | |
36 | PrivateData->PpiData.LastDispatchedNotify = FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1;\r | |
192f6d4c | 37 | }\r |
192f6d4c | 38 | }\r |
39 | \r | |
b1f6a7c6 | 40 | /**\r |
41 | \r | |
42 | Migrate the Hob list from the CAR stack to PEI installed memory.\r | |
43 | \r | |
44 | @param PeiServices The PEI core services table.\r | |
45 | @param OldCheckingBottom The old checking bottom.\r | |
46 | @param OldCheckingTop The old checking top.\r | |
47 | @param NewHandOffHob The new handoff HOB list.\r | |
48 | \r | |
49 | **/\r | |
192f6d4c | 50 | VOID\r |
51 | ConvertPpiPointers (\r | |
0c2b5da8 | 52 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
58dcdada | 53 | IN UINTN OldCheckingBottom,\r |
54 | IN UINTN OldCheckingTop,\r | |
192f6d4c | 55 | IN EFI_HOB_HANDOFF_INFO_TABLE *NewHandOffHob\r |
56 | )\r | |
192f6d4c | 57 | {\r |
58 | PEI_CORE_INSTANCE *PrivateData;\r | |
59 | UINT8 Index;\r | |
60 | PEI_PPI_LIST_POINTERS *PpiPointer;\r | |
61 | UINTN Fixup;\r | |
62 | \r | |
63 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
64 | \r | |
58dcdada | 65 | Fixup = (UINTN)NewHandOffHob - OldCheckingBottom;\r |
66 | \r | |
eaf539d0 | 67 | for (Index = 0; Index < FixedPcdGet32 (PcdPeiCoreMaxPpiSupported); Index++) {\r |
192f6d4c | 68 | if (Index < PrivateData->PpiData.PpiListEnd ||\r |
69 | Index > PrivateData->PpiData.NotifyListEnd) {\r | |
70 | PpiPointer = &PrivateData->PpiData.PpiListPtrs[Index];\r | |
58dcdada | 71 | \r |
72 | if (((UINTN)PpiPointer->Raw < OldCheckingTop) &&\r | |
73 | ((UINTN)PpiPointer->Raw >= OldCheckingBottom)) {\r | |
192f6d4c | 74 | //\r |
75 | // Convert the pointer to the PEIM descriptor from the old HOB heap\r | |
76 | // to the relocated HOB heap.\r | |
77 | //\r | |
78 | PpiPointer->Raw = (VOID *) ((UINTN)PpiPointer->Raw + Fixup);\r | |
79 | \r | |
80 | //\r | |
81 | // Only when the PEIM descriptor is in the old HOB should it be necessary\r | |
82 | // to try to convert the pointers in the PEIM descriptor\r | |
83 | //\r | |
58dcdada | 84 | \r |
85 | if (((UINTN)PpiPointer->Ppi->Guid < OldCheckingTop) &&\r | |
86 | ((UINTN)PpiPointer->Ppi->Guid >= OldCheckingBottom)) {\r | |
192f6d4c | 87 | //\r |
88 | // Convert the pointer to the GUID in the PPI or NOTIFY descriptor\r | |
89 | // from the old HOB heap to the relocated HOB heap.\r | |
90 | //\r | |
91 | PpiPointer->Ppi->Guid = (VOID *) ((UINTN)PpiPointer->Ppi->Guid + Fixup);\r | |
92 | }\r | |
93 | \r | |
94 | //\r | |
95 | // Assume that no code is located in the temporary memory, so the pointer to\r | |
96 | // the notification function in the NOTIFY descriptor needs not be converted.\r | |
97 | //\r | |
98 | if (Index < PrivateData->PpiData.PpiListEnd &&\r | |
58dcdada | 99 | (UINTN)PpiPointer->Ppi->Ppi < OldCheckingTop &&\r |
100 | (UINTN)PpiPointer->Ppi->Ppi >= OldCheckingBottom) {\r | |
192f6d4c | 101 | //\r |
102 | // Convert the pointer to the PPI interface structure in the PPI descriptor\r | |
103 | // from the old HOB heap to the relocated HOB heap.\r | |
104 | //\r | |
58dcdada | 105 | PpiPointer->Ppi->Ppi = (VOID *) ((UINTN)PpiPointer->Ppi->Ppi+ Fixup);\r |
192f6d4c | 106 | }\r |
107 | }\r | |
108 | }\r | |
109 | }\r | |
110 | }\r | |
111 | \r | |
b1f6a7c6 | 112 | /**\r |
192f6d4c | 113 | \r |
b1f6a7c6 | 114 | Install PPI services.\r |
192f6d4c | 115 | \r |
b1f6a7c6 | 116 | @param PeiServices - Pointer to the PEI Service Table\r |
117 | @param PpiList - Pointer to a list of PEI PPI Descriptors.\r | |
118 | \r | |
119 | @retval EFI_SUCCESS - if all PPIs in PpiList are successfully installed.\r | |
120 | @retval EFI_INVALID_PARAMETER - if PpiList is NULL pointer\r | |
121 | @retval EFI_INVALID_PARAMETER - if any PPI in PpiList is not valid\r | |
122 | @retval EFI_OUT_OF_RESOURCES - if there is no more memory resource to install PPI\r | |
123 | \r | |
124 | **/\r | |
192f6d4c | 125 | EFI_STATUS\r |
126 | EFIAPI\r | |
127 | PeiInstallPpi (\r | |
0c2b5da8 | 128 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
129 | IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList\r | |
192f6d4c | 130 | )\r |
192f6d4c | 131 | {\r |
132 | PEI_CORE_INSTANCE *PrivateData;\r | |
133 | INTN Index;\r | |
134 | INTN LastCallbackInstall;\r | |
135 | \r | |
136 | \r | |
137 | if (PpiList == NULL) {\r | |
138 | return EFI_INVALID_PARAMETER;\r | |
139 | }\r | |
140 | \r | |
141 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
142 | \r | |
143 | Index = PrivateData->PpiData.PpiListEnd;\r | |
144 | LastCallbackInstall = Index;\r | |
145 | \r | |
146 | //\r | |
147 | // This is loop installs all PPI descriptors in the PpiList. It is terminated\r | |
148 | // by the EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST being set in the last\r | |
149 | // EFI_PEI_PPI_DESCRIPTOR in the list.\r | |
150 | //\r | |
58dcdada | 151 | \r |
192f6d4c | 152 | for (;;) {\r |
153 | //\r | |
154 | // Since PpiData is used for NotifyList and InstallList, max resource\r | |
155 | // is reached if the Install reaches the NotifyList\r | |
156 | //\r | |
157 | if (Index == PrivateData->PpiData.NotifyListEnd + 1) {\r | |
158 | return EFI_OUT_OF_RESOURCES;\r | |
159 | }\r | |
160 | //\r | |
58dcdada | 161 | // Check if it is a valid PPI.\r |
192f6d4c | 162 | // If not, rollback list to exclude all in this list.\r |
163 | // Try to indicate which item failed.\r | |
164 | //\r | |
165 | if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r | |
166 | PrivateData->PpiData.PpiListEnd = LastCallbackInstall;\r | |
167 | DEBUG((EFI_D_ERROR, "ERROR -> InstallPpi: %g %x\n", PpiList->Guid, PpiList->Ppi));\r | |
168 | return EFI_INVALID_PARAMETER;\r | |
169 | }\r | |
170 | \r | |
58dcdada | 171 | DEBUG((EFI_D_INFO, "Install PPI: %g\n", PpiList->Guid));\r |
172 | PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR*) PpiList;\r | |
192f6d4c | 173 | PrivateData->PpiData.PpiListEnd++;\r |
58dcdada | 174 | \r |
192f6d4c | 175 | //\r |
176 | // Continue until the end of the PPI List.\r | |
177 | //\r | |
58dcdada | 178 | if ((PpiList->Flags & EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) ==\r |
192f6d4c | 179 | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST) {\r |
180 | break;\r | |
181 | }\r | |
182 | PpiList++;\r | |
183 | Index++;\r | |
184 | }\r | |
185 | \r | |
186 | //\r | |
187 | // Dispatch any callback level notifies for newly installed PPIs.\r | |
188 | //\r | |
189 | DispatchNotify (\r | |
b0d803fe | 190 | PrivateData,\r |
192f6d4c | 191 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
192 | LastCallbackInstall,\r | |
193 | PrivateData->PpiData.PpiListEnd,\r | |
58dcdada | 194 | PrivateData->PpiData.DispatchListEnd,\r |
192f6d4c | 195 | PrivateData->PpiData.NotifyListEnd\r |
196 | );\r | |
197 | \r | |
198 | \r | |
199 | return EFI_SUCCESS;\r | |
200 | }\r | |
201 | \r | |
b1f6a7c6 | 202 | /**\r |
203 | \r | |
204 | Re-Install PPI services.\r | |
205 | \r | |
206 | @param PeiServices - Pointer to the PEI Service Table\r | |
207 | @param OldPpi - Pointer to the old PEI PPI Descriptors.\r | |
208 | @param NewPpi - Pointer to the new PEI PPI Descriptors.\r | |
192f6d4c | 209 | \r |
b1f6a7c6 | 210 | @retval EFI_SUCCESS - if the operation was successful\r |
211 | @retval EFI_INVALID_PARAMETER - if OldPpi or NewPpi is NULL\r | |
212 | @retval EFI_INVALID_PARAMETER - if NewPpi is not valid\r | |
213 | @retval EFI_NOT_FOUND - if the PPI was not in the database\r | |
214 | \r | |
215 | **/\r | |
192f6d4c | 216 | EFI_STATUS\r |
217 | EFIAPI\r | |
218 | PeiReInstallPpi (\r | |
0c2b5da8 | 219 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
220 | IN CONST EFI_PEI_PPI_DESCRIPTOR *OldPpi,\r | |
221 | IN CONST EFI_PEI_PPI_DESCRIPTOR *NewPpi\r | |
192f6d4c | 222 | )\r |
192f6d4c | 223 | {\r |
224 | PEI_CORE_INSTANCE *PrivateData;\r | |
225 | INTN Index;\r | |
226 | \r | |
227 | \r | |
228 | if ((OldPpi == NULL) || (NewPpi == NULL)) {\r | |
229 | return EFI_INVALID_PARAMETER;\r | |
230 | }\r | |
231 | \r | |
232 | if ((NewPpi->Flags & EFI_PEI_PPI_DESCRIPTOR_PPI) == 0) {\r | |
233 | return EFI_INVALID_PARAMETER;\r | |
234 | }\r | |
235 | \r | |
236 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r | |
237 | \r | |
238 | //\r | |
239 | // Find the old PPI instance in the database. If we can not find it,\r | |
240 | // return the EFI_NOT_FOUND error.\r | |
241 | //\r | |
242 | for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r | |
243 | if (OldPpi == PrivateData->PpiData.PpiListPtrs[Index].Ppi) {\r | |
244 | break;\r | |
245 | }\r | |
246 | }\r | |
247 | if (Index == PrivateData->PpiData.PpiListEnd) {\r | |
248 | return EFI_NOT_FOUND;\r | |
249 | }\r | |
250 | \r | |
251 | //\r | |
252 | // Remove the old PPI from the database, add the new one.\r | |
58dcdada | 253 | //\r |
192f6d4c | 254 | DEBUG((EFI_D_INFO, "Reinstall PPI: %g\n", NewPpi->Guid));\r |
0c2b5da8 | 255 | PrivateData->PpiData.PpiListPtrs[Index].Ppi = (EFI_PEI_PPI_DESCRIPTOR *) NewPpi;\r |
192f6d4c | 256 | \r |
257 | //\r | |
258 | // Dispatch any callback level notifies for the newly installed PPI.\r | |
259 | //\r | |
260 | DispatchNotify (\r | |
b0d803fe | 261 | PrivateData,\r |
192f6d4c | 262 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK,\r |
263 | Index,\r | |
264 | Index+1,\r | |
58dcdada | 265 | PrivateData->PpiData.DispatchListEnd,\r |
192f6d4c | 266 | PrivateData->PpiData.NotifyListEnd\r |
267 | );\r | |
268 | \r | |
269 | \r | |
270 | return EFI_SUCCESS;\r | |
271 | }\r | |
272 | \r | |
b1f6a7c6 | 273 | /**\r |
274 | \r | |
275 | Locate a given named PPI.\r | |
276 | \r | |
192f6d4c | 277 | \r |
b1f6a7c6 | 278 | @param PeiServices - Pointer to the PEI Service Table\r |
279 | @param Guid - Pointer to GUID of the PPI.\r | |
280 | @param Instance - Instance Number to discover.\r | |
281 | @param PpiDescriptor - Pointer to reference the found descriptor. If not NULL,\r | |
282 | returns a pointer to the descriptor (includes flags, etc)\r | |
283 | @param Ppi - Pointer to reference the found PPI\r | |
284 | \r | |
285 | @retval EFI_SUCCESS if the PPI is in the database\r | |
286 | @retval EFI_NOT_FOUND if the PPI is not in the database\r | |
287 | \r | |
288 | **/\r | |
192f6d4c | 289 | EFI_STATUS\r |
290 | EFIAPI\r | |
291 | PeiLocatePpi (\r | |
0c2b5da8 | 292 | IN CONST EFI_PEI_SERVICES **PeiServices,\r |
293 | IN CONST EFI_GUID *Guid,\r | |
192f6d4c | 294 | IN UINTN Instance,\r |
295 | IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,\r | |
296 | IN OUT VOID **Ppi\r | |
297 | )\r | |
192f6d4c | 298 | {\r |
299 | PEI_CORE_INSTANCE *PrivateData;\r | |
300 | INTN Index;\r | |
301 | EFI_GUID *CheckGuid;\r | |
302 | EFI_PEI_PPI_DESCRIPTOR *TempPtr;\r | |
303 | \r | |
58dcdada | 304 | \r |
192f6d4c | 305 | PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS(PeiServices);\r |
306 | \r | |
307 | //\r | |
308 | // Search the data base for the matching instance of the GUIDed PPI.\r | |
309 | //\r | |
310 | for (Index = 0; Index < PrivateData->PpiData.PpiListEnd; Index++) {\r | |
311 | TempPtr = PrivateData->PpiData.PpiListPtrs[Index].Ppi;\r | |
312 | CheckGuid = TempPtr->Guid;\r | |
313 | \r | |
314 | //\r | |
315 | // Don't use CompareGuid function here for performance reasons.\r | |
316 | // Instead we compare the GUID as INT32 at a time and branch\r | |
317 | // on the first failed comparison.\r | |
318 | //\r | |
319 | if ((((INT32 *)Guid)[0] == ((INT32 *)CheckGuid)[0]) &&\r | |
320 | (((INT32 *)Guid)[1] == ((INT32 *)CheckGuid)[1]) &&\r | |
321 | (((INT32 *)Guid)[2] == ((INT32 *)CheckGuid)[2]) &&\r | |
322 | (((INT32 *)Guid)[3] == ((INT32 *)CheckGuid)[3])) {\r | |
323 | if (Instance == 0) {\r | |
324 | \r | |
325 | if (PpiDescriptor != NULL) {\r | |
326 | *PpiDescriptor = TempPtr;\r | |
327 | }\r | |
328 | \r | |
329 | if (Ppi != NULL) {\r | |
330 | *Ppi = TempPtr->Ppi;\r | |
331 | }\r | |
332 | \r | |
333 | \r | |
334 | return EFI_SUCCESS;\r | |
335 | }\r | |
336 | Instance--;\r | |
337 | }\r | |
338 | }\r | |
339 | \r | |
340 | return EFI_NOT_FOUND;\r | |
341 | }\r | |
342 | \r | |
b1f6a7c6 | 343 | /**\r |
192f6d4c | 344 | \r |
b1f6a7c6 | 345 | Install a notification for a given PPI.\r |
346 | \r | |
347 | \r | |
348 | @param PeiServices - Pointer to the PEI Service Table\r | |
349 | @param NotifyList - Pointer to list of Descriptors to notify upon.\r | |
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 |
456 | \r | |
192f6d4c | 457 | return EFI_SUCCESS;\r |
458 | }\r | |
459 | \r | |
460 | \r | |
b1f6a7c6 | 461 | /**\r |
192f6d4c | 462 | \r |
463 | Process the Notify List at dispatch level.\r | |
464 | \r | |
b1f6a7c6 | 465 | @param PrivateData PeiCore's private data structure.\r |
192f6d4c | 466 | \r |
b1f6a7c6 | 467 | **/\r |
468 | VOID\r | |
469 | ProcessNotifyList (\r | |
470 | IN PEI_CORE_INSTANCE *PrivateData\r | |
471 | )\r | |
192f6d4c | 472 | {\r |
192f6d4c | 473 | INTN TempValue;\r |
58dcdada | 474 | \r |
192f6d4c | 475 | while (TRUE) {\r |
476 | //\r | |
477 | // Check if the PEIM that was just dispatched resulted in any\r | |
478 | // Notifies getting installed. If so, go process any dispatch\r | |
479 | // level Notifies that match the previouly installed PPIs.\r | |
58dcdada | 480 | // Use "while" instead of "if" since DispatchNotify can modify\r |
192f6d4c | 481 | // DispatchListEnd (with NotifyPpi) so we have to iterate until the same.\r |
482 | //\r | |
483 | while (PrivateData->PpiData.LastDispatchedNotify != PrivateData->PpiData.DispatchListEnd) {\r | |
484 | TempValue = PrivateData->PpiData.DispatchListEnd;\r | |
485 | DispatchNotify (\r | |
b0d803fe | 486 | PrivateData,\r |
192f6d4c | 487 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r |
488 | 0,\r | |
489 | PrivateData->PpiData.LastDispatchedInstall,\r | |
490 | PrivateData->PpiData.LastDispatchedNotify,\r | |
491 | PrivateData->PpiData.DispatchListEnd\r | |
492 | );\r | |
493 | PrivateData->PpiData.LastDispatchedNotify = TempValue;\r | |
494 | }\r | |
58dcdada | 495 | \r |
496 | \r | |
192f6d4c | 497 | //\r |
498 | // Check if the PEIM that was just dispatched resulted in any\r | |
499 | // PPIs getting installed. If so, go process any dispatch\r | |
500 | // level Notifies that match the installed PPIs.\r | |
58dcdada | 501 | // Use "while" instead of "if" since DispatchNotify can modify\r |
192f6d4c | 502 | // PpiListEnd (with InstallPpi) so we have to iterate until the same.\r |
503 | //\r | |
504 | while (PrivateData->PpiData.LastDispatchedInstall != PrivateData->PpiData.PpiListEnd) {\r | |
505 | TempValue = PrivateData->PpiData.PpiListEnd;\r | |
506 | DispatchNotify (\r | |
b0d803fe | 507 | PrivateData,\r |
192f6d4c | 508 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH,\r |
509 | PrivateData->PpiData.LastDispatchedInstall,\r | |
510 | PrivateData->PpiData.PpiListEnd,\r | |
eaf539d0 | 511 | FixedPcdGet32 (PcdPeiCoreMaxPpiSupported)-1,\r |
192f6d4c | 512 | PrivateData->PpiData.DispatchListEnd\r |
513 | );\r | |
514 | PrivateData->PpiData.LastDispatchedInstall = TempValue;\r | |
515 | }\r | |
58dcdada | 516 | \r |
192f6d4c | 517 | if (PrivateData->PpiData.LastDispatchedNotify == PrivateData->PpiData.DispatchListEnd) {\r |
518 | break;\r | |
519 | }\r | |
58dcdada | 520 | }\r |
192f6d4c | 521 | return;\r |
522 | }\r | |
523 | \r | |
b1f6a7c6 | 524 | /**\r |
525 | \r | |
526 | Dispatch notifications.\r | |
527 | \r | |
528 | @param PrivateData PeiCore's private data structure\r | |
529 | @param NotifyType Type of notify to fire.\r | |
530 | @param InstallStartIndex Install Beginning index.\r | |
531 | @param InstallStopIndex Install Ending index.\r | |
532 | @param NotifyStartIndex Notify Beginning index.\r | |
533 | @param NotifyStopIndex Notify Ending index.\r | |
534 | \r | |
535 | **/\r | |
192f6d4c | 536 | VOID\r |
537 | DispatchNotify (\r | |
b0d803fe | 538 | IN PEI_CORE_INSTANCE *PrivateData,\r |
192f6d4c | 539 | IN UINTN NotifyType,\r |
540 | IN INTN InstallStartIndex,\r | |
541 | IN INTN InstallStopIndex,\r | |
542 | IN INTN NotifyStartIndex,\r | |
543 | IN INTN NotifyStopIndex\r | |
544 | )\r | |
192f6d4c | 545 | {\r |
192f6d4c | 546 | INTN Index1;\r |
547 | INTN Index2;\r | |
548 | EFI_GUID *SearchGuid;\r | |
549 | EFI_GUID *CheckGuid;\r | |
550 | EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor;\r | |
551 | \r | |
192f6d4c | 552 | //\r |
553 | // Remember that Installs moves up and Notifies moves down.\r | |
554 | //\r | |
555 | for (Index1 = NotifyStartIndex; Index1 > NotifyStopIndex; Index1--) {\r | |
556 | NotifyDescriptor = PrivateData->PpiData.PpiListPtrs[Index1].Notify;\r | |
557 | \r | |
558 | CheckGuid = NotifyDescriptor->Guid;\r | |
559 | \r | |
560 | for (Index2 = InstallStartIndex; Index2 < InstallStopIndex; Index2++) {\r | |
561 | SearchGuid = PrivateData->PpiData.PpiListPtrs[Index2].Ppi->Guid;\r | |
562 | //\r | |
563 | // Don't use CompareGuid function here for performance reasons.\r | |
564 | // Instead we compare the GUID as INT32 at a time and branch\r | |
565 | // on the first failed comparison.\r | |
566 | //\r | |
567 | if ((((INT32 *)SearchGuid)[0] == ((INT32 *)CheckGuid)[0]) &&\r | |
568 | (((INT32 *)SearchGuid)[1] == ((INT32 *)CheckGuid)[1]) &&\r | |
569 | (((INT32 *)SearchGuid)[2] == ((INT32 *)CheckGuid)[2]) &&\r | |
570 | (((INT32 *)SearchGuid)[3] == ((INT32 *)CheckGuid)[3])) {\r | |
58dcdada | 571 | DEBUG ((EFI_D_INFO, "Notify: PPI Guid: %g, Peim notify entry point: %x\n",\r |
572 | SearchGuid,\r | |
192f6d4c | 573 | NotifyDescriptor->Notify\r |
574 | ));\r | |
575 | NotifyDescriptor->Notify (\r | |
b0d803fe | 576 | GetPeiServicesTablePointer (),\r |
192f6d4c | 577 | NotifyDescriptor,\r |
578 | (PrivateData->PpiData.PpiListPtrs[Index2].Ppi)->Ppi\r | |
579 | );\r | |
580 | }\r | |
581 | }\r | |
582 | }\r | |
583 | \r | |
584 | return;\r | |
585 | }\r | |
586 | \r |