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