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