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80408db0 | 1 | /** @file\r |
2 | PCD DXE driver\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2007, 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 | |
12 | \r | |
13 | \r | |
14 | Module Name: Pcd.c\r | |
15 | \r | |
16 | **/\r | |
17 | \r | |
80408db0 | 18 | #include "Service.h"\r |
19 | \r | |
20 | EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE(TPL_CALLBACK);\r | |
21 | \r | |
22 | PCD_PROTOCOL mPcdInstance = {\r | |
23 | DxePcdSetSku,\r | |
24 | \r | |
25 | DxePcdGet8,\r | |
26 | DxePcdGet16,\r | |
27 | DxePcdGet32,\r | |
28 | DxePcdGet64,\r | |
29 | DxePcdGetPtr,\r | |
30 | DxePcdGetBool,\r | |
31 | DxePcdGetSize,\r | |
32 | \r | |
33 | DxePcdGet8Ex,\r | |
34 | DxePcdGet16Ex,\r | |
35 | DxePcdGet32Ex,\r | |
36 | DxePcdGet64Ex,\r | |
37 | DxePcdGetPtrEx,\r | |
38 | DxePcdGetBoolEx,\r | |
39 | DxePcdGetSizeEx,\r | |
40 | \r | |
41 | DxePcdSet8,\r | |
42 | DxePcdSet16,\r | |
43 | DxePcdSet32,\r | |
44 | DxePcdSet64,\r | |
45 | DxePcdSetPtr,\r | |
46 | DxePcdSetBool,\r | |
47 | \r | |
48 | DxePcdSet8Ex,\r | |
49 | DxePcdSet16Ex,\r | |
50 | DxePcdSet32Ex,\r | |
51 | DxePcdSet64Ex,\r | |
52 | DxePcdSetPtrEx,\r | |
53 | DxePcdSetBoolEx,\r | |
54 | \r | |
55 | DxeRegisterCallBackOnSet,\r | |
56 | DxeUnRegisterCallBackOnSet,\r | |
57 | DxePcdGetNextToken,\r | |
58 | DxePcdGetNextTokenSpace\r | |
59 | };\r | |
60 | \r | |
61 | \r | |
62 | //\r | |
63 | // Static global to reduce the code size\r | |
64 | //\r | |
65 | static EFI_HANDLE mNewHandle = NULL;\r | |
66 | \r | |
67 | EFI_STATUS\r | |
68 | EFIAPI\r | |
69 | PcdDxeInit (\r | |
70 | IN EFI_HANDLE ImageHandle,\r | |
71 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
72 | )\r | |
73 | {\r | |
74 | EFI_STATUS Status;\r | |
75 | \r | |
76 | //\r | |
77 | // Make sure the Pcd Protocol is not already installed in the system\r | |
78 | //\r | |
79 | \r | |
80 | ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gPcdProtocolGuid);\r | |
81 | \r | |
82 | BuildPcdDxeDataBase ();\r | |
83 | \r | |
84 | Status = gBS->InstallProtocolInterface (\r | |
85 | &mNewHandle,\r | |
86 | &gPcdProtocolGuid,\r | |
87 | EFI_NATIVE_INTERFACE,\r | |
88 | &mPcdInstance\r | |
89 | );\r | |
90 | \r | |
91 | ASSERT_EFI_ERROR (Status);\r | |
92 | \r | |
93 | return EFI_SUCCESS;\r | |
94 | \r | |
95 | }\r | |
96 | \r | |
97 | \r | |
98 | VOID\r | |
99 | EFIAPI\r | |
100 | DxePcdSetSku (\r | |
101 | IN UINTN SkuId\r | |
102 | )\r | |
103 | {\r | |
104 | mPcdDatabase->PeiDb.Init.SystemSkuId = (SKU_ID) SkuId;\r | |
105 | \r | |
106 | return;\r | |
107 | }\r | |
108 | \r | |
109 | \r | |
110 | \r | |
111 | UINT8\r | |
112 | EFIAPI\r | |
113 | DxePcdGet8 (\r | |
114 | IN UINTN TokenNumber\r | |
115 | )\r | |
116 | {\r | |
117 | return *((UINT8 *) GetWorker (TokenNumber, sizeof (UINT8)));\r | |
118 | }\r | |
119 | \r | |
120 | \r | |
121 | \r | |
122 | UINT16\r | |
123 | EFIAPI\r | |
124 | DxePcdGet16 (\r | |
125 | IN UINTN TokenNumber\r | |
126 | )\r | |
127 | {\r | |
128 | return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16)));\r | |
129 | }\r | |
130 | \r | |
131 | \r | |
132 | \r | |
133 | UINT32\r | |
134 | EFIAPI\r | |
135 | DxePcdGet32 (\r | |
136 | IN UINTN TokenNumber\r | |
137 | )\r | |
138 | {\r | |
139 | return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32)));\r | |
140 | }\r | |
141 | \r | |
142 | \r | |
143 | \r | |
144 | UINT64\r | |
145 | EFIAPI\r | |
146 | DxePcdGet64 (\r | |
147 | IN UINTN TokenNumber\r | |
148 | )\r | |
149 | {\r | |
150 | return ReadUnaligned64(GetWorker (TokenNumber, sizeof (UINT64)));\r | |
151 | }\r | |
152 | \r | |
153 | \r | |
154 | \r | |
155 | VOID *\r | |
156 | EFIAPI\r | |
157 | DxePcdGetPtr (\r | |
158 | IN UINTN TokenNumber\r | |
159 | )\r | |
160 | {\r | |
161 | return GetWorker (TokenNumber, 0);\r | |
162 | }\r | |
163 | \r | |
164 | \r | |
165 | \r | |
166 | BOOLEAN\r | |
167 | EFIAPI\r | |
168 | DxePcdGetBool (\r | |
169 | IN UINTN TokenNumber\r | |
170 | )\r | |
171 | {\r | |
172 | return *((BOOLEAN *) GetWorker (TokenNumber, sizeof (BOOLEAN)));\r | |
173 | }\r | |
174 | \r | |
175 | \r | |
176 | \r | |
177 | UINTN\r | |
178 | EFIAPI\r | |
179 | DxePcdGetSize (\r | |
180 | IN UINTN TokenNumber\r | |
181 | )\r | |
182 | {\r | |
183 | UINTN Size;\r | |
184 | UINT32 *LocalTokenNumberTable;\r | |
185 | BOOLEAN IsPeiDb;\r | |
186 | UINTN MaxSize;\r | |
187 | UINTN TmpTokenNumber;\r | |
188 | //\r | |
189 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
190 | // We have to decrement TokenNumber by 1 to make it usable\r | |
191 | // as the array index.\r | |
192 | //\r | |
193 | TokenNumber--;\r | |
194 | \r | |
195 | //\r | |
196 | // Backup the TokenNumber passed in as GetPtrTypeSize need the original TokenNumber\r | |
197 | // \r | |
198 | TmpTokenNumber = TokenNumber;\r | |
199 | \r | |
200 | // EBC compiler is very choosy. It may report warning about comparison\r | |
201 | // between UINTN and 0 . So we add 1 in each size of the \r | |
202 | // comparison.\r | |
203 | ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);\r | |
204 | \r | |
205 | // EBC compiler is very choosy. It may report warning about comparison\r | |
206 | // between UINTN and 0 . So we add 1 in each size of the \r | |
207 | // comparison.\r | |
208 | IsPeiDb = (BOOLEAN) (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
209 | \r | |
210 | TokenNumber = IsPeiDb ? TokenNumber : \r | |
211 | (TokenNumber - PEI_LOCAL_TOKEN_NUMBER);\r | |
212 | \r | |
213 | LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable \r | |
214 | : mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r | |
215 | \r | |
216 | Size = (LocalTokenNumberTable[TokenNumber] & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r | |
217 | \r | |
218 | if (Size == 0) {\r | |
219 | //\r | |
220 | // For pointer type, we need to scan the SIZE_TABLE to get the current size.\r | |
221 | //\r | |
222 | return GetPtrTypeSize (TmpTokenNumber, &MaxSize);\r | |
223 | } else {\r | |
224 | return Size;\r | |
225 | }\r | |
226 | \r | |
227 | }\r | |
228 | \r | |
229 | \r | |
230 | \r | |
231 | UINT8\r | |
232 | EFIAPI\r | |
233 | DxePcdGet8Ex (\r | |
234 | IN CONST EFI_GUID *Guid,\r | |
235 | IN UINTN ExTokenNumber\r | |
236 | )\r | |
237 | {\r | |
238 | return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof(UINT8)));\r | |
239 | }\r | |
240 | \r | |
241 | \r | |
242 | \r | |
243 | UINT16\r | |
244 | EFIAPI\r | |
245 | DxePcdGet16Ex (\r | |
246 | IN CONST EFI_GUID *Guid,\r | |
247 | IN UINTN ExTokenNumber\r | |
248 | )\r | |
249 | {\r | |
250 | return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT16)));\r | |
251 | }\r | |
252 | \r | |
253 | \r | |
254 | \r | |
255 | UINT32\r | |
256 | EFIAPI\r | |
257 | DxePcdGet32Ex (\r | |
258 | IN CONST EFI_GUID *Guid,\r | |
259 | IN UINTN ExTokenNumber\r | |
260 | )\r | |
261 | {\r | |
262 | return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT32)));\r | |
263 | }\r | |
264 | \r | |
265 | \r | |
266 | \r | |
267 | UINT64\r | |
268 | EFIAPI\r | |
269 | DxePcdGet64Ex (\r | |
270 | IN CONST EFI_GUID *Guid,\r | |
271 | IN UINTN ExTokenNumber\r | |
272 | )\r | |
273 | {\r | |
274 | return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT64)));\r | |
275 | }\r | |
276 | \r | |
277 | \r | |
278 | \r | |
279 | VOID *\r | |
280 | EFIAPI\r | |
281 | DxePcdGetPtrEx (\r | |
282 | IN CONST EFI_GUID *Guid,\r | |
283 | IN UINTN ExTokenNumber\r | |
284 | )\r | |
285 | {\r | |
286 | return ExGetWorker (Guid, ExTokenNumber, 0);\r | |
287 | }\r | |
288 | \r | |
289 | \r | |
290 | \r | |
291 | BOOLEAN\r | |
292 | EFIAPI\r | |
293 | DxePcdGetBoolEx (\r | |
294 | IN CONST EFI_GUID *Guid,\r | |
295 | IN UINTN ExTokenNumber\r | |
296 | )\r | |
297 | {\r | |
298 | return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof(BOOLEAN)));\r | |
299 | }\r | |
300 | \r | |
301 | \r | |
302 | \r | |
303 | UINTN\r | |
304 | EFIAPI\r | |
305 | DxePcdGetSizeEx (\r | |
306 | IN CONST EFI_GUID *Guid,\r | |
307 | IN UINTN ExTokenNumber\r | |
308 | )\r | |
309 | {\r | |
310 | return DxePcdGetSize(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber));\r | |
311 | }\r | |
312 | \r | |
313 | \r | |
314 | \r | |
315 | EFI_STATUS\r | |
316 | EFIAPI\r | |
317 | DxePcdSet8 (\r | |
318 | IN UINTN TokenNumber,\r | |
319 | IN UINT8 Value\r | |
320 | )\r | |
321 | {\r | |
322 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r | |
323 | }\r | |
324 | \r | |
325 | \r | |
326 | \r | |
327 | EFI_STATUS\r | |
328 | EFIAPI\r | |
329 | DxePcdSet16 (\r | |
330 | IN UINTN TokenNumber,\r | |
331 | IN UINT16 Value\r | |
332 | )\r | |
333 | {\r | |
334 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r | |
335 | }\r | |
336 | \r | |
337 | \r | |
338 | \r | |
339 | EFI_STATUS\r | |
340 | EFIAPI\r | |
341 | DxePcdSet32 (\r | |
342 | IN UINTN TokenNumber,\r | |
343 | IN UINT32 Value\r | |
344 | )\r | |
345 | {\r | |
346 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r | |
347 | }\r | |
348 | \r | |
349 | \r | |
350 | \r | |
351 | EFI_STATUS\r | |
352 | EFIAPI\r | |
353 | DxePcdSet64 (\r | |
354 | IN UINTN TokenNumber,\r | |
355 | IN UINT64 Value\r | |
356 | )\r | |
357 | {\r | |
358 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r | |
359 | }\r | |
360 | \r | |
361 | \r | |
362 | \r | |
363 | EFI_STATUS\r | |
364 | EFIAPI\r | |
365 | DxePcdSetPtr (\r | |
366 | IN UINTN TokenNumber,\r | |
367 | IN OUT UINTN *SizeOfBuffer,\r | |
368 | IN VOID *Buffer\r | |
369 | )\r | |
370 | {\r | |
371 | return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);\r | |
372 | }\r | |
373 | \r | |
374 | \r | |
375 | \r | |
376 | EFI_STATUS\r | |
377 | EFIAPI\r | |
378 | DxePcdSetBool (\r | |
379 | IN UINTN TokenNumber,\r | |
380 | IN BOOLEAN Value\r | |
381 | )\r | |
382 | {\r | |
383 | return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r | |
384 | }\r | |
385 | \r | |
386 | \r | |
387 | \r | |
388 | EFI_STATUS\r | |
389 | EFIAPI\r | |
390 | DxePcdSet8Ex (\r | |
391 | IN CONST EFI_GUID *Guid,\r | |
392 | IN UINTN ExTokenNumber,\r | |
393 | IN UINT8 Value\r | |
394 | )\r | |
395 | {\r | |
396 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r | |
397 | }\r | |
398 | \r | |
399 | \r | |
400 | \r | |
401 | EFI_STATUS\r | |
402 | EFIAPI\r | |
403 | DxePcdSet16Ex (\r | |
404 | IN CONST EFI_GUID *Guid,\r | |
405 | IN UINTN ExTokenNumber,\r | |
406 | IN UINT16 Value\r | |
407 | )\r | |
408 | {\r | |
409 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r | |
410 | }\r | |
411 | \r | |
412 | \r | |
413 | \r | |
414 | EFI_STATUS\r | |
415 | EFIAPI\r | |
416 | DxePcdSet32Ex (\r | |
417 | IN CONST EFI_GUID *Guid,\r | |
418 | IN UINTN ExTokenNumber,\r | |
419 | IN UINT32 Value\r | |
420 | )\r | |
421 | {\r | |
422 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r | |
423 | }\r | |
424 | \r | |
425 | \r | |
426 | \r | |
427 | EFI_STATUS\r | |
428 | EFIAPI\r | |
429 | DxePcdSet64Ex (\r | |
430 | IN CONST EFI_GUID *Guid,\r | |
431 | IN UINTN ExTokenNumber,\r | |
432 | IN UINT64 Value\r | |
433 | )\r | |
434 | {\r | |
435 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r | |
436 | }\r | |
437 | \r | |
438 | \r | |
439 | \r | |
440 | EFI_STATUS\r | |
441 | EFIAPI\r | |
442 | DxePcdSetPtrEx (\r | |
443 | IN CONST EFI_GUID *Guid,\r | |
444 | IN UINTN ExTokenNumber,\r | |
445 | IN OUT UINTN *SizeOfBuffer,\r | |
446 | IN VOID *Buffer\r | |
447 | )\r | |
448 | {\r | |
449 | return ExSetWorker(ExTokenNumber, Guid, Buffer, SizeOfBuffer, TRUE);\r | |
450 | }\r | |
451 | \r | |
452 | \r | |
453 | \r | |
454 | EFI_STATUS\r | |
455 | EFIAPI\r | |
456 | DxePcdSetBoolEx (\r | |
457 | IN CONST EFI_GUID *Guid,\r | |
458 | IN UINTN ExTokenNumber,\r | |
459 | IN BOOLEAN Value\r | |
460 | )\r | |
461 | {\r | |
462 | return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r | |
463 | }\r | |
464 | \r | |
465 | \r | |
466 | \r | |
467 | \r | |
468 | EFI_STATUS\r | |
469 | EFIAPI\r | |
470 | DxeRegisterCallBackOnSet (\r | |
471 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
472 | IN UINTN TokenNumber,\r | |
473 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r | |
474 | )\r | |
475 | {\r | |
476 | EFI_STATUS Status;\r | |
477 | \r | |
478 | ASSERT (CallBackFunction != NULL);\r | |
479 | \r | |
480 | //\r | |
481 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
482 | //\r | |
483 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
484 | \r | |
485 | Status = DxeRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);\r | |
486 | \r | |
487 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
488 | \r | |
489 | return Status;\r | |
490 | }\r | |
491 | \r | |
492 | \r | |
493 | \r | |
494 | EFI_STATUS\r | |
495 | EFIAPI\r | |
496 | DxeUnRegisterCallBackOnSet (\r | |
497 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
498 | IN UINTN TokenNumber,\r | |
499 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r | |
500 | )\r | |
501 | {\r | |
502 | EFI_STATUS Status;\r | |
503 | \r | |
504 | ASSERT (CallBackFunction != NULL);\r | |
505 | \r | |
506 | //\r | |
507 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
508 | //\r | |
509 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
510 | \r | |
511 | Status = DxeUnRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);\r | |
512 | \r | |
513 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
514 | \r | |
515 | return Status;\r | |
516 | }\r | |
517 | \r | |
518 | \r | |
519 | \r | |
520 | EFI_STATUS\r | |
521 | EFIAPI\r | |
522 | DxePcdGetNextToken (\r | |
523 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
524 | IN OUT UINTN *TokenNumber\r | |
525 | )\r | |
526 | {\r | |
527 | EFI_STATUS Status;\r | |
528 | BOOLEAN PeiExMapTableEmpty;\r | |
529 | BOOLEAN DxeExMapTableEmpty;\r | |
530 | \r | |
531 | if (!FeaturePcdGet (PcdDxePcdDatabaseTraverseEnabled)) {\r | |
532 | return EFI_UNSUPPORTED;\r | |
533 | }\r | |
534 | \r | |
535 | Status = EFI_NOT_FOUND;\r | |
536 | PeiExMapTableEmpty = PEI_EXMAP_TABLE_EMPTY;\r | |
537 | DxeExMapTableEmpty = DXE_EXMAP_TABLE_EMPTY;\r | |
538 | \r | |
539 | //\r | |
540 | // Scan the local token space\r | |
541 | //\r | |
542 | if (Guid == NULL) {\r | |
543 | // EBC compiler is very choosy. It may report warning about comparison\r | |
544 | // between UINTN and 0 . So we add 1 in each size of the \r | |
545 | // comparison.\r | |
546 | if (((*TokenNumber + 1 > PEI_NEX_TOKEN_NUMBER + 1) && (*TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1)) ||\r | |
547 | ((*TokenNumber + 1 > (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER + 1)))) {\r | |
548 | return EFI_NOT_FOUND;\r | |
549 | }\r | |
550 | \r | |
551 | (*TokenNumber)++;\r | |
552 | if ((*TokenNumber + 1 > PEI_NEX_TOKEN_NUMBER + 1) &&\r | |
553 | (*TokenNumber <= PEI_LOCAL_TOKEN_NUMBER)) {\r | |
554 | //\r | |
555 | // The first Non-Ex type Token Number for DXE PCD \r | |
556 | // database is PEI_LOCAL_TOKEN_NUMBER\r | |
557 | //\r | |
558 | *TokenNumber = PEI_LOCAL_TOKEN_NUMBER;\r | |
559 | } else if (*TokenNumber + 1 > DXE_NEX_TOKEN_NUMBER + PEI_LOCAL_TOKEN_NUMBER + 1) {\r | |
560 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r | |
561 | }\r | |
562 | return EFI_SUCCESS;\r | |
563 | }\r | |
564 | \r | |
565 | if (PeiExMapTableEmpty && DxeExMapTableEmpty) {\r | |
566 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r | |
567 | return EFI_NOT_FOUND;\r | |
568 | }\r | |
569 | \r | |
570 | if (!PeiExMapTableEmpty) {\r | |
571 | Status = ExGetNextTokeNumber (\r | |
572 | Guid,\r | |
573 | TokenNumber,\r | |
574 | mPcdDatabase->PeiDb.Init.GuidTable,\r | |
575 | sizeof(mPcdDatabase->PeiDb.Init.GuidTable),\r | |
576 | mPcdDatabase->PeiDb.Init.ExMapTable,\r | |
577 | sizeof(mPcdDatabase->PeiDb.Init.ExMapTable)\r | |
578 | );\r | |
579 | }\r | |
580 | \r | |
581 | if (Status == EFI_SUCCESS) {\r | |
582 | return Status;\r | |
583 | }\r | |
584 | \r | |
585 | if (!DxeExMapTableEmpty) {\r | |
586 | Status = ExGetNextTokeNumber (\r | |
587 | Guid,\r | |
588 | TokenNumber,\r | |
589 | mPcdDatabase->DxeDb.Init.GuidTable,\r | |
590 | sizeof(mPcdDatabase->DxeDb.Init.GuidTable),\r | |
591 | mPcdDatabase->DxeDb.Init.ExMapTable,\r | |
592 | sizeof(mPcdDatabase->DxeDb.Init.ExMapTable)\r | |
593 | );\r | |
594 | }\r | |
595 | \r | |
596 | return Status;\r | |
597 | }\r | |
598 | \r | |
599 | STATIC\r | |
600 | EFI_GUID **\r | |
601 | GetDistinctTokenSpace (\r | |
602 | IN OUT UINTN *ExMapTableSize,\r | |
603 | IN DYNAMICEX_MAPPING *ExMapTable,\r | |
604 | IN EFI_GUID *GuidTable\r | |
605 | )\r | |
606 | {\r | |
607 | EFI_GUID **DistinctTokenSpace;\r | |
608 | UINTN OldGuidIndex;\r | |
609 | UINTN TsIdx;\r | |
610 | UINTN Idx;\r | |
611 | \r | |
612 | \r | |
613 | DistinctTokenSpace = AllocateZeroPool (*ExMapTableSize * sizeof (EFI_GUID *));\r | |
614 | ASSERT (DistinctTokenSpace != NULL);\r | |
615 | \r | |
616 | TsIdx = 0;\r | |
617 | OldGuidIndex = ExMapTable[0].ExGuidIndex;\r | |
618 | DistinctTokenSpace[TsIdx] = &GuidTable[OldGuidIndex];\r | |
619 | for (Idx = 1; Idx < *ExMapTableSize; Idx++) {\r | |
620 | if (ExMapTable[Idx].ExGuidIndex != OldGuidIndex) {\r | |
621 | OldGuidIndex = ExMapTable[Idx].ExGuidIndex;\r | |
622 | DistinctTokenSpace[++TsIdx] = &GuidTable[OldGuidIndex];\r | |
623 | }\r | |
624 | }\r | |
625 | \r | |
626 | //\r | |
627 | // The total number of Distinct Token Space\r | |
628 | // is TsIdx + 1 because we use TsIdx as a index\r | |
629 | // to the DistinctTokenSpace[]\r | |
630 | //\r | |
631 | *ExMapTableSize = TsIdx + 1;\r | |
632 | return DistinctTokenSpace;\r | |
633 | \r | |
634 | }\r | |
635 | \r | |
636 | //\r | |
637 | // Just pre-allocate a memory buffer that is big enough to\r | |
638 | // host all distinct TokenSpace guid in both\r | |
639 | // PEI ExMap and DXE ExMap.\r | |
640 | //\r | |
641 | STATIC EFI_GUID *TmpTokenSpaceBuffer[PEI_EXMAPPING_TABLE_SIZE + DXE_EXMAPPING_TABLE_SIZE] = { 0 };\r | |
642 | \r | |
643 | EFI_STATUS\r | |
644 | EFIAPI\r | |
645 | DxePcdGetNextTokenSpace (\r | |
646 | IN OUT CONST EFI_GUID **Guid\r | |
647 | )\r | |
648 | {\r | |
649 | UINTN Idx;\r | |
650 | UINTN Idx2;\r | |
651 | UINTN Idx3;\r | |
652 | UINTN PeiTokenSpaceTableSize;\r | |
653 | UINTN DxeTokenSpaceTableSize;\r | |
654 | EFI_GUID **PeiTokenSpaceTable;\r | |
655 | EFI_GUID **DxeTokenSpaceTable;\r | |
656 | BOOLEAN Match;\r | |
657 | BOOLEAN PeiExMapTableEmpty;\r | |
658 | BOOLEAN DxeExMapTableEmpty;\r | |
659 | \r | |
660 | if (!FeaturePcdGet (PcdDxePcdDatabaseTraverseEnabled)) {\r | |
661 | return EFI_UNSUPPORTED;\r | |
662 | }\r | |
663 | \r | |
664 | ASSERT (Guid != NULL);\r | |
665 | \r | |
666 | PeiExMapTableEmpty = PEI_EXMAP_TABLE_EMPTY;\r | |
667 | DxeExMapTableEmpty = DXE_EXMAP_TABLE_EMPTY;\r | |
668 | \r | |
669 | if (PeiExMapTableEmpty && DxeExMapTableEmpty) {\r | |
670 | if (*Guid != NULL) {\r | |
671 | return EFI_NOT_FOUND;\r | |
672 | } else {\r | |
673 | return EFI_SUCCESS;\r | |
674 | }\r | |
675 | }\r | |
676 | \r | |
677 | \r | |
678 | if (TmpTokenSpaceBuffer[0] == NULL) {\r | |
679 | PeiTokenSpaceTableSize = 0;\r | |
680 | \r | |
681 | if (!PeiExMapTableEmpty) {\r | |
682 | PeiTokenSpaceTableSize = PEI_EXMAPPING_TABLE_SIZE;\r | |
683 | PeiTokenSpaceTable = GetDistinctTokenSpace (&PeiTokenSpaceTableSize,\r | |
684 | mPcdDatabase->PeiDb.Init.ExMapTable,\r | |
685 | mPcdDatabase->PeiDb.Init.GuidTable\r | |
686 | );\r | |
687 | CopyMem (TmpTokenSpaceBuffer, PeiTokenSpaceTable, sizeof (EFI_GUID*) * PeiTokenSpaceTableSize);\r | |
688 | }\r | |
689 | \r | |
690 | if (!DxeExMapTableEmpty) {\r | |
691 | DxeTokenSpaceTableSize = DXE_EXMAPPING_TABLE_SIZE;\r | |
692 | DxeTokenSpaceTable = GetDistinctTokenSpace (&DxeTokenSpaceTableSize,\r | |
693 | mPcdDatabase->DxeDb.Init.ExMapTable,\r | |
694 | mPcdDatabase->DxeDb.Init.GuidTable\r | |
695 | );\r | |
696 | \r | |
697 | //\r | |
698 | // Make sure EFI_GUID in DxeTokenSpaceTable does not exist in PeiTokenSpaceTable\r | |
699 | //\r | |
700 | for (Idx2 = 0, Idx3 = PeiTokenSpaceTableSize; Idx2 < DxeTokenSpaceTableSize; Idx2++) {\r | |
701 | Match = FALSE;\r | |
702 | for (Idx = 0; Idx < PeiTokenSpaceTableSize; Idx++) {\r | |
703 | if (CompareGuid (TmpTokenSpaceBuffer[Idx], DxeTokenSpaceTable[Idx2])) {\r | |
704 | Match = TRUE;\r | |
705 | break;\r | |
706 | }\r | |
707 | }\r | |
708 | if (!Match) {\r | |
709 | TmpTokenSpaceBuffer[Idx3++] = DxeTokenSpaceTable[Idx2];\r | |
710 | }\r | |
711 | }\r | |
712 | }\r | |
713 | }\r | |
714 | \r | |
715 | if (*Guid == NULL) {\r | |
716 | *Guid = TmpTokenSpaceBuffer[0];\r | |
717 | return EFI_SUCCESS;\r | |
718 | }\r | |
719 | \r | |
720 | for (Idx = 0; Idx < (PEI_EXMAPPING_TABLE_SIZE + DXE_EXMAPPING_TABLE_SIZE); Idx++) {\r | |
721 | if(CompareGuid (*Guid, TmpTokenSpaceBuffer[Idx])) {\r | |
722 | Idx++;\r | |
723 | *Guid = TmpTokenSpaceBuffer[Idx];\r | |
724 | return EFI_SUCCESS;\r | |
725 | }\r | |
726 | }\r | |
727 | \r | |
728 | return EFI_NOT_FOUND;\r | |
729 | \r | |
730 | }\r | |
731 | \r | |
732 | \r |