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Fixes a build issue (build error 'Statement is unreachable').
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1/** @file\r
2 Help functions used by PCD DXE driver.\r
3\r
4Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
5This program and the accompanying materials\r
6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#include "Service.h"\r
16#include <Library/DxeServicesLib.h>\r
17\r
18PCD_DATABASE mPcdDatabase;\r
19\r
20UINT32 mPcdTotalTokenCount; \r
21UINT32 mPeiLocalTokenCount; \r
22UINT32 mDxeLocalTokenCount; \r
23UINT32 mPeiNexTokenCount; \r
24UINT32 mDxeNexTokenCount; \r
25UINT32 mPeiExMapppingTableSize;\r
26UINT32 mDxeExMapppingTableSize;\r
27UINT32 mPeiGuidTableSize;\r
28UINT32 mDxeGuidTableSize;\r
29\r
30BOOLEAN mPeiExMapTableEmpty; \r
31BOOLEAN mDxeExMapTableEmpty; \r
32BOOLEAN mPeiDatabaseEmpty;\r
33\r
34LIST_ENTRY *mCallbackFnTable;\r
35EFI_GUID **TmpTokenSpaceBuffer;\r
36UINTN TmpTokenSpaceBufferCount; \r
37\r
38/**\r
39 Get Local Token Number by Token Number.\r
40\r
41 @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r
42 If FALSE, the pcd entry is initialized in DXE phase.\r
43 @param[in] TokenNumber The PCD token number.\r
44\r
45 @return Local Token Number.\r
46**/\r
47UINT32\r
48GetLocalTokenNumber (\r
49 IN BOOLEAN IsPeiDb,\r
50 IN UINTN TokenNumber\r
51 )\r
52{\r
53 UINT32 *LocalTokenNumberTable;\r
54 UINT32 LocalTokenNumber;\r
55 UINTN Size;\r
56 UINTN MaxSize;\r
57\r
58 //\r
59 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
60 // We have to decrement TokenNumber by 1 to make it usable\r
61 // as the array index.\r
62 //\r
63 TokenNumber--;\r
64\r
65 LocalTokenNumberTable = IsPeiDb ? (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset) : \r
66 (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r
67 TokenNumber = IsPeiDb ? TokenNumber : TokenNumber - mPeiLocalTokenCount;\r
68\r
69 LocalTokenNumber = LocalTokenNumberTable[TokenNumber];\r
70\r
71 Size = (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r
72\r
73 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r
74 if (Size == 0) {\r
75 GetPtrTypeSize (TokenNumber, &MaxSize);\r
76 } else {\r
77 MaxSize = Size;\r
78 }\r
79 LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb);\r
80 }\r
81\r
82 return LocalTokenNumber;\r
83}\r
84\r
85/**\r
86 Get PCD type by Local Token Number.\r
87\r
88 @param[in] LocalTokenNumber The PCD local token number.\r
89\r
90 @return PCD type.\r
91**/\r
92EFI_PCD_TYPE\r
93GetPcdType (\r
94 IN UINT32 LocalTokenNumber\r
95 )\r
96{\r
97 switch (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) {\r
98 case PCD_DATUM_TYPE_POINTER:\r
99 return EFI_PCD_TYPE_PTR;\r
100 case PCD_DATUM_TYPE_UINT8:\r
101 if ((LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) == PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r
102 return EFI_PCD_TYPE_BOOL;\r
103 } else {\r
104 return EFI_PCD_TYPE_8;\r
105 }\r
106 case PCD_DATUM_TYPE_UINT16:\r
107 return EFI_PCD_TYPE_16;\r
108 case PCD_DATUM_TYPE_UINT32:\r
109 return EFI_PCD_TYPE_32;\r
110 case PCD_DATUM_TYPE_UINT64:\r
111 return EFI_PCD_TYPE_64;\r
112 default:\r
113 ASSERT (FALSE);\r
114 return EFI_PCD_TYPE_8;\r
115 }\r
116}\r
117\r
118/**\r
119 Get PCD name.\r
120\r
121 @param[in] OnlyTokenSpaceName If TRUE, only need to get the TokenSpaceCName.\r
122 If FALSE, need to get the full PCD name.\r
123 @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r
124 If FALSE, the pcd entry is initialized in DXE phase.\r
125 @param[in] TokenNumber The PCD token number.\r
126\r
127 @return The TokenSpaceCName or full PCD name.\r
128**/\r
129CHAR8 *\r
130GetPcdName (\r
131 IN BOOLEAN OnlyTokenSpaceName,\r
132 IN BOOLEAN IsPeiDb,\r
133 IN UINTN TokenNumber\r
134 )\r
135{\r
136 PCD_DATABASE_INIT *Database;\r
137 UINT8 *StringTable;\r
138 PCD_NAME_INDEX *PcdNameIndex;\r
139 CHAR8 *TokenSpaceName;\r
140 CHAR8 *PcdName;\r
141 CHAR8 *Name;\r
142\r
143 //\r
144 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
145 // We have to decrement TokenNumber by 1 to make it usable\r
146 // as the array index.\r
147 //\r
148 TokenNumber--;\r
149\r
150 Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r
151 TokenNumber = IsPeiDb ? TokenNumber : TokenNumber - mPeiLocalTokenCount;\r
152\r
153 StringTable = (UINT8 *) Database + Database->StringTableOffset;\r
154\r
155 //\r
156 // Get the PCD name index.\r
157 //\r
158 PcdNameIndex = (PCD_NAME_INDEX *)((UINT8 *) Database + Database->PcdNameTableOffset) + TokenNumber;\r
159 TokenSpaceName = (CHAR8 *)&StringTable[PcdNameIndex->TokenSpaceCNameIndex];\r
160 PcdName = (CHAR8 *)&StringTable[PcdNameIndex->PcdCNameIndex];\r
161\r
162 if (OnlyTokenSpaceName) {\r
163 //\r
164 // Only need to get the TokenSpaceCName.\r
165 //\r
166 Name = AllocateCopyPool (AsciiStrSize (TokenSpaceName), TokenSpaceName);\r
167 } else {\r
168 //\r
169 // Need to get the full PCD name.\r
170 //\r
171 Name = AllocateZeroPool (AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName));\r
172 ASSERT (Name != NULL);\r
173 //\r
174 // Catenate TokenSpaceCName and PcdCName with a '.' to form the full PCD name.\r
175 //\r
176 AsciiStrCat (Name, TokenSpaceName);\r
177 Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r
178 AsciiStrCat (Name, PcdName); \r
179 }\r
180\r
181 return Name;\r
182}\r
183\r
184/**\r
185 Retrieve additional information associated with a PCD token.\r
186\r
187 This includes information such as the type of value the TokenNumber is associated with as well as possible\r
188 human readable name that is associated with the token.\r
189\r
190 @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r
191 If FALSE, the pcd entry is initialized in DXE phase.\r
192 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
193 @param[in] TokenNumber The PCD token number.\r
194 @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r
195 The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. \r
196\r
197 @retval EFI_SUCCESS The PCD information was returned successfully\r
198 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
199**/\r
200EFI_STATUS\r
201ExGetPcdInfo (\r
202 IN BOOLEAN IsPeiDb,\r
203 IN CONST EFI_GUID *Guid,\r
204 IN UINTN TokenNumber,\r
205 OUT EFI_PCD_INFO *PcdInfo\r
206 )\r
207{\r
208 PCD_DATABASE_INIT *Database;\r
209 UINTN GuidTableIdx;\r
210 EFI_GUID *MatchGuid;\r
211 EFI_GUID *GuidTable;\r
212 DYNAMICEX_MAPPING *ExMapTable;\r
213 UINTN Index;\r
214 UINT32 LocalTokenNumber;\r
215\r
216 Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r
217\r
218 GuidTable = (EFI_GUID *)((UINT8 *)Database + Database->GuidTableOffset);\r
219 MatchGuid = ScanGuid (GuidTable, Database->GuidTableCount * sizeof(EFI_GUID), Guid);\r
220\r
221 if (MatchGuid == NULL) {\r
222 return EFI_NOT_FOUND;\r
223 }\r
224\r
225 GuidTableIdx = MatchGuid - GuidTable;\r
226\r
227 ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)Database + Database->ExMapTableOffset);\r
228\r
229 //\r
230 // Find the PCD by GuidTableIdx and ExTokenNumber in ExMapTable.\r
231 //\r
232 for (Index = 0; Index < Database->ExTokenCount; Index++) {\r
233 if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r
234 if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r
235 //\r
236 // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r
237 // PcdSize to 0 and PcdName to the null-terminated ASCII string\r
238 // associated with the token's namespace Guid.\r
239 //\r
240 PcdInfo->PcdType = EFI_PCD_TYPE_8;\r
241 PcdInfo->PcdSize = 0;\r
242 //\r
243 // Here use one representative in the token space to get the TokenSpaceCName.\r
244 // \r
245 PcdInfo->PcdName = GetPcdName (TRUE, IsPeiDb, ExMapTable[Index].TokenNumber);\r
246 return EFI_SUCCESS;\r
247 } else if (ExMapTable[Index].ExTokenNumber == TokenNumber) {\r
248 PcdInfo->PcdSize = DxePcdGetSize (ExMapTable[Index].TokenNumber);\r
249 LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, ExMapTable[Index].TokenNumber);\r
250 PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r
251 PcdInfo->PcdName = GetPcdName (FALSE, IsPeiDb, ExMapTable[Index].TokenNumber);\r
252 return EFI_SUCCESS;\r
253 }\r
254 }\r
255 }\r
256\r
257 return EFI_NOT_FOUND;\r
258}\r
259\r
260/**\r
261 Retrieve additional information associated with a PCD token.\r
262\r
263 This includes information such as the type of value the TokenNumber is associated with as well as possible\r
264 human readable name that is associated with the token.\r
265\r
266 @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
267 @param[in] TokenNumber The PCD token number.\r
268 @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r
269 The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r
270\r
271 @retval EFI_SUCCESS The PCD information was returned successfully.\r
272 @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
273**/\r
274EFI_STATUS\r
275DxeGetPcdInfo (\r
276 IN CONST EFI_GUID *Guid,\r
277 IN UINTN TokenNumber,\r
278 OUT EFI_PCD_INFO *PcdInfo\r
279 )\r
280{\r
281 EFI_STATUS Status;\r
282 BOOLEAN PeiExMapTableEmpty;\r
283 BOOLEAN DxeExMapTableEmpty;\r
284 UINT32 LocalTokenNumber;\r
285 BOOLEAN IsPeiDb;\r
286\r
287 ASSERT (PcdInfo != NULL);\r
288\r
289 Status = EFI_NOT_FOUND;\r
290 PeiExMapTableEmpty = mPeiExMapTableEmpty;\r
291 DxeExMapTableEmpty = mDxeExMapTableEmpty;\r
292\r
293 if (Guid == NULL) {\r
294 if (((TokenNumber + 1 > mPeiNexTokenCount + 1) && (TokenNumber + 1 <= mPeiLocalTokenCount + 1)) ||\r
295 ((TokenNumber + 1 > (mPeiLocalTokenCount + mDxeNexTokenCount + 1)))) {\r
296 return EFI_NOT_FOUND;\r
297 } else if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r
298 //\r
299 // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r
300 // PcdSize to 0 and PcdName to NULL for default Token Space.\r
301 //\r
302 PcdInfo->PcdType = EFI_PCD_TYPE_8;\r
303 PcdInfo->PcdSize = 0;\r
304 PcdInfo->PcdName = NULL;\r
305 } else {\r
306 PcdInfo->PcdSize = DxePcdGetSize (TokenNumber);\r
307 IsPeiDb = FALSE;\r
308 if ((TokenNumber + 1 <= mPeiNexTokenCount + 1)) {\r
309 IsPeiDb = TRUE;\r
310 }\r
311 LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber);\r
312 PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r
313 PcdInfo->PcdName = GetPcdName (FALSE, IsPeiDb, TokenNumber);\r
314 }\r
315 return EFI_SUCCESS;\r
316 }\r
317\r
318 if (PeiExMapTableEmpty && DxeExMapTableEmpty) {\r
319 return EFI_NOT_FOUND;\r
320 }\r
321\r
322 if (!PeiExMapTableEmpty) {\r
323 Status = ExGetPcdInfo (\r
324 TRUE,\r
325 Guid,\r
326 TokenNumber,\r
327 PcdInfo\r
328 );\r
329 }\r
330\r
331 if (Status == EFI_SUCCESS) {\r
332 return Status;\r
333 }\r
334\r
335 if (!DxeExMapTableEmpty) {\r
336 Status = ExGetPcdInfo (\r
337 FALSE,\r
338 Guid,\r
339 TokenNumber,\r
340 PcdInfo\r
341 );\r
342 }\r
343\r
344 return Status;\r
345}\r
346\r
347/**\r
348 Get the PCD entry pointer in PCD database.\r
349 \r
350 This routine will visit PCD database to find the PCD entry according to given\r
351 token number. The given token number is autogened by build tools and it will be \r
352 translated to local token number. Local token number contains PCD's type and \r
353 offset of PCD entry in PCD database.\r
354\r
355 @param TokenNumber Token's number, it is autogened by build tools\r
356 @param GetSize The size of token's value\r
357\r
358 @return PCD entry pointer in PCD database\r
359\r
360**/\r
361VOID *\r
362GetWorker (\r
363 IN UINTN TokenNumber,\r
364 IN UINTN GetSize\r
365 )\r
366{\r
367 EFI_GUID *GuidTable;\r
368 UINT8 *StringTable;\r
369 EFI_GUID *Guid;\r
370 UINT16 *Name;\r
371 VARIABLE_HEAD *VariableHead;\r
372 UINT8 *VaraiableDefaultBuffer;\r
373 UINT8 *Data;\r
374 VPD_HEAD *VpdHead;\r
375 UINT8 *PcdDb;\r
376 VOID *RetPtr;\r
377 UINTN TmpTokenNumber;\r
378 UINTN DataSize;\r
379 EFI_STATUS Status;\r
380 UINT32 LocalTokenNumber;\r
381 UINT32 Offset;\r
382 STRING_HEAD StringTableIdx; \r
383 BOOLEAN IsPeiDb;\r
384\r
385 //\r
386 // Aquire lock to prevent reentrance from TPL_CALLBACK level\r
387 //\r
388 EfiAcquireLock (&mPcdDatabaseLock);\r
389\r
390 RetPtr = NULL;\r
391\r
392 ASSERT (TokenNumber > 0);\r
393 //\r
394 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
395 // We have to decrement TokenNumber by 1 to make it usable\r
396 // as the array index.\r
397 //\r
398 TokenNumber--;\r
399\r
400 TmpTokenNumber = TokenNumber;\r
401\r
402 //\r
403 // EBC compiler is very choosy. It may report warning about comparison\r
404 // between UINTN and 0 . So we add 1 in each size of the \r
405 // comparison.\r
406 //\r
407 ASSERT (TokenNumber + 1 < mPcdTotalTokenCount + 1);\r
408\r
409 ASSERT ((GetSize == DxePcdGetSize (TokenNumber + 1)) || (GetSize == 0));\r
410\r
411 // EBC compiler is very choosy. It may report warning about comparison\r
412 // between UINTN and 0 . So we add 1 in each size of the \r
413 // comparison.\r
414 IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < mPeiLocalTokenCount + 1) ? TRUE : FALSE);\r
415\r
416 LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber + 1);\r
417\r
418 PcdDb = IsPeiDb ? ((UINT8 *) mPcdDatabase.PeiDb) : ((UINT8 *) mPcdDatabase.DxeDb);\r
419 \r
420 if (IsPeiDb) {\r
421 StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->StringTableOffset);\r
422 } else {\r
423 StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->StringTableOffset);\r
424 }\r
425\r
426\r
427 Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r
428\r
429 switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r
430 case PCD_TYPE_VPD:\r
431 VpdHead = (VPD_HEAD *) ((UINT8 *) PcdDb + Offset);\r
432 RetPtr = (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r
433\r
434 break;\r
435\r
436 case PCD_TYPE_HII|PCD_TYPE_STRING:\r
437 case PCD_TYPE_HII:\r
438 if (IsPeiDb) {\r
439 GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r
440 } else {\r
441 GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r
442 }\r
443\r
444 VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r
445 Guid = GuidTable + VariableHead->GuidTableIndex;\r
446 Name = (UINT16*)(StringTable + VariableHead->StringIndex);\r
447\r
448 if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r
449 //\r
450 // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of \r
451 // string array in string table.\r
452 //\r
453 StringTableIdx = *(STRING_HEAD*)((UINT8 *) PcdDb + VariableHead->DefaultValueOffset); \r
454 VaraiableDefaultBuffer = (VOID *) (StringTable + StringTableIdx); \r
455 } else {\r
456 VaraiableDefaultBuffer = (UINT8 *) PcdDb + VariableHead->DefaultValueOffset;\r
457 }\r
458 Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r
459 if (Status == EFI_SUCCESS) {\r
460 if (GetSize == 0) {\r
461 //\r
462 // It is a pointer type. So get the MaxSize reserved for\r
463 // this PCD entry.\r
464 //\r
465 GetPtrTypeSize (TmpTokenNumber, &GetSize);\r
466 }\r
467 //\r
468 // If the operation is successful, we copy the data\r
469 // to the default value buffer in the PCD Database.\r
470 // So that we can free the Data allocated in GetHiiVariable.\r
471 //\r
472 CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize);\r
473 FreePool (Data);\r
474 }\r
475 RetPtr = (VOID *) VaraiableDefaultBuffer;\r
476 break;\r
477\r
478 case PCD_TYPE_STRING:\r
479 StringTableIdx = *(STRING_HEAD*)((UINT8 *) PcdDb + Offset);\r
480 RetPtr = (VOID *) (StringTable + StringTableIdx);\r
481 break;\r
482\r
483 case PCD_TYPE_DATA:\r
484 RetPtr = (VOID *) ((UINT8 *) PcdDb + Offset);\r
485 break;\r
486\r
487 default:\r
488 ASSERT (FALSE);\r
489 break;\r
490 \r
491 }\r
492\r
493 EfiReleaseLock (&mPcdDatabaseLock);\r
494\r
495 return RetPtr;\r
496\r
497}\r
498\r
499/**\r
500 Register the callback function for a PCD entry.\r
501\r
502 This routine will register a callback function to a PCD entry by given token number\r
503 and token space guid.\r
504 \r
505 @param TokenNumber PCD token's number, it is autogened by build tools.\r
506 @param Guid PCD token space's guid, \r
507 if not NULL, this PCD is dynamicEx type PCD.\r
508 @param CallBackFunction Callback function pointer\r
509\r
510 @return EFI_SUCCESS Always success for registering callback function.\r
511\r
512**/\r
513EFI_STATUS\r
514DxeRegisterCallBackWorker (\r
515 IN UINTN TokenNumber,\r
516 IN CONST EFI_GUID *Guid, OPTIONAL\r
517 IN PCD_PROTOCOL_CALLBACK CallBackFunction\r
518)\r
519{\r
520 CALLBACK_FN_ENTRY *FnTableEntry;\r
521 LIST_ENTRY *ListHead;\r
522 LIST_ENTRY *ListNode;\r
523\r
524 if (Guid != NULL) {\r
525 TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r
526 }\r
527\r
528 //\r
529 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
530 // We have to decrement TokenNumber by 1 to make it usable\r
531 // as the array index of mCallbackFnTable[].\r
532 //\r
533 ListHead = &mCallbackFnTable[TokenNumber - 1];\r
534 ListNode = GetFirstNode (ListHead);\r
535\r
536 while (ListNode != ListHead) {\r
537 FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r
538\r
539 if (FnTableEntry->CallbackFn == CallBackFunction) {\r
540 //\r
541 // We only allow a Callback function to be register once\r
542 // for a TokenNumber. So just return EFI_SUCCESS\r
543 //\r
544 return EFI_SUCCESS;\r
545 }\r
546 ListNode = GetNextNode (ListHead, ListNode);\r
547 }\r
548\r
549 FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY));\r
550 ASSERT (FnTableEntry != NULL);\r
551\r
552 FnTableEntry->CallbackFn = CallBackFunction;\r
553 InsertTailList (ListHead, &FnTableEntry->Node);\r
554 \r
555 return EFI_SUCCESS;\r
556}\r
557\r
558/**\r
559 UnRegister the callback function for a PCD entry.\r
560\r
561 This routine will unregister a callback function to a PCD entry by given token number\r
562 and token space guid.\r
563\r
564 @param TokenNumber PCD token's number, it is autogened by build tools.\r
565 @param Guid PCD token space's guid.\r
566 if not NULL, this PCD is dynamicEx type PCD.\r
567 @param CallBackFunction Callback function pointer\r
568\r
569 @retval EFI_SUCCESS Callback function is success to be unregister.\r
570 @retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number.\r
571**/\r
572EFI_STATUS\r
573DxeUnRegisterCallBackWorker (\r
574 IN UINTN TokenNumber,\r
575 IN CONST EFI_GUID *Guid, OPTIONAL\r
576 IN PCD_PROTOCOL_CALLBACK CallBackFunction\r
577)\r
578{\r
579 CALLBACK_FN_ENTRY *FnTableEntry;\r
580 LIST_ENTRY *ListHead;\r
581 LIST_ENTRY *ListNode;\r
582\r
583 if (Guid != NULL) {\r
584 TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r
585 }\r
586\r
587 //\r
588 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
589 // We have to decrement TokenNumber by 1 to make it usable\r
590 // as the array index of mCallbackFnTable[].\r
591 //\r
592 ListHead = &mCallbackFnTable[TokenNumber - 1];\r
593 ListNode = GetFirstNode (ListHead);\r
594\r
595 while (ListNode != ListHead) {\r
596 FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r
597\r
598 if (FnTableEntry->CallbackFn == CallBackFunction) {\r
599 //\r
600 // We only allow a Callback function to be register once\r
601 // for a TokenNumber. So we can safely remove the Node from\r
602 // the Link List and return EFI_SUCCESS.\r
603 //\r
604 RemoveEntryList (ListNode);\r
605 FreePool (FnTableEntry);\r
606 \r
607 return EFI_SUCCESS;\r
608 }\r
609 ListNode = GetNextNode (ListHead, ListNode);\r
610 }\r
611\r
612 return EFI_INVALID_PARAMETER;\r
613}\r
614\r
615/**\r
616 Get next token number in given token space.\r
617 \r
618 This routine is used for dynamicEx type PCD. It will firstly scan token space\r
619 table to get token space according to given token space guid. Then scan given \r
620 token number in found token space, if found, then return next token number in \r
621 this token space.\r
622\r
623 @param Guid Token space guid. Next token number will be scaned in \r
624 this token space.\r
625 @param TokenNumber Token number. \r
626 If PCD_INVALID_TOKEN_NUMBER, return first token number in \r
627 token space table.\r
628 If not PCD_INVALID_TOKEN_NUMBER, return next token number\r
629 in token space table.\r
630 @param GuidTable Token space guid table. It will be used for scan token space\r
631 by given token space guid.\r
632 @param SizeOfGuidTable The size of guid table.\r
633 @param ExMapTable DynamicEx token number mapping table.\r
634 @param SizeOfExMapTable The size of dynamicEx token number mapping table.\r
635\r
636 @retval EFI_NOT_FOUND Can not given token space or token number.\r
637 @retval EFI_SUCCESS Success to get next token number.\r
638\r
639**/\r
640EFI_STATUS\r
641ExGetNextTokeNumber (\r
642 IN CONST EFI_GUID *Guid,\r
643 IN OUT UINTN *TokenNumber,\r
644 IN EFI_GUID *GuidTable,\r
645 IN UINTN SizeOfGuidTable,\r
646 IN DYNAMICEX_MAPPING *ExMapTable,\r
647 IN UINTN SizeOfExMapTable\r
648 )\r
649{\r
650 EFI_GUID *MatchGuid;\r
651 UINTN Index;\r
652 UINTN GuidTableIdx;\r
653 BOOLEAN Found;\r
654 UINTN ExMapTableCount;\r
655\r
656 //\r
657 // Scan token space guid \r
658 // \r
659 MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid);\r
660 if (MatchGuid == NULL) {\r
661 return EFI_NOT_FOUND;\r
662 }\r
663\r
664 //\r
665 // Find the token space table in dynamicEx mapping table.\r
666 //\r
667 Found = FALSE;\r
668 GuidTableIdx = MatchGuid - GuidTable;\r
669 ExMapTableCount = SizeOfExMapTable / sizeof(ExMapTable[0]);\r
670 for (Index = 0; Index < ExMapTableCount; Index++) {\r
671 if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r
672 Found = TRUE;\r
673 break;\r
674 }\r
675 }\r
676\r
677 if (Found) {\r
678 //\r
679 // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first\r
680 // token number in found token space.\r
681 //\r
682 if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r
683 *TokenNumber = ExMapTable[Index].ExTokenNumber;\r
684 return EFI_SUCCESS;\r
685 }\r
686\r
687 for ( ; Index < ExMapTableCount; Index++) {\r
688 if (ExMapTable[Index].ExTokenNumber == *TokenNumber) {\r
689 break;\r
690 }\r
691 }\r
692\r
693 while (Index < ExMapTableCount) {\r
694 Index++;\r
695 if (Index == ExMapTableCount) {\r
696 //\r
697 // Exceed the length of ExMap Table\r
698 //\r
699 *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r
700 return EFI_NOT_FOUND;\r
701 } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r
702 //\r
703 // Found the next match\r
704 //\r
705 *TokenNumber = ExMapTable[Index].ExTokenNumber;\r
706 return EFI_SUCCESS;\r
707 }\r
708 }\r
709 }\r
710\r
711 return EFI_NOT_FOUND;\r
712}\r
713\r
714/**\r
715 Find the PCD database.\r
716\r
717 @retval The base address of external PCD database binary.\r
718 @retval NULL Return NULL if not find.\r
719**/\r
720DXE_PCD_DATABASE *\r
721LocateExPcdBinary (\r
722 VOID\r
723) \r
724{\r
725 DXE_PCD_DATABASE *DxePcdDbBinary;\r
726 UINTN DxePcdDbSize;\r
727 EFI_STATUS Status;\r
728 \r
729 DxePcdDbBinary = NULL;\r
730 //\r
731 // Search the External Pcd database from one section of current FFS, \r
732 // and read it to memory\r
733 //\r
734 Status = GetSectionFromFfs (\r
735 EFI_SECTION_RAW,\r
736 0,\r
737 (VOID **) &DxePcdDbBinary,\r
738 &DxePcdDbSize\r
739 );\r
740 ASSERT_EFI_ERROR (Status);\r
741\r
742 //\r
743 // Check the first bytes (Header Signature Guid) and build version.\r
744 //\r
745 if (!CompareGuid ((VOID *)DxePcdDbBinary, &gPcdDataBaseSignatureGuid) ||\r
746 (DxePcdDbBinary->BuildVersion != PCD_SERVICE_DXE_VERSION)) {\r
747 ASSERT (FALSE);\r
748 }\r
749\r
750 return DxePcdDbBinary;\r
751}\r
752\r
753/**\r
754 Initialize the PCD database in DXE phase.\r
755 \r
756 PCD database in DXE phase also contains PCD database in PEI phase which is copied\r
757 from GUID Hob.\r
758\r
759**/\r
760VOID\r
761BuildPcdDxeDataBase (\r
762 VOID\r
763 )\r
764{\r
765 PEI_PCD_DATABASE *PeiDatabase;\r
766 EFI_HOB_GUID_TYPE *GuidHob;\r
767 UINTN Index;\r
768 UINT32 PcdDxeDbLen;\r
769 VOID *PcdDxeDb;\r
770\r
771 GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r
772 if (GuidHob != NULL) {\r
773\r
774 // \r
775 // If no PEIMs use dynamic Pcd Entry, the Pcd Service PEIM\r
776 // should not be included at all. So the GuidHob could\r
777 // be NULL. If it is NULL, we just copy over the DXE Default\r
778 // Value to PCD Database.\r
779 //\r
780 \r
781 PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r
782 //\r
783 // Assign PCD Entries refereneced in PEI phase to PCD DATABASE\r
784 //\r
785 mPcdDatabase.PeiDb = PeiDatabase;\r
786 }\r
787\r
788 //\r
789 // Assign PCD Entries with default value to PCD DATABASE\r
790 //\r
791 mPcdDatabase.DxeDb = LocateExPcdBinary ();\r
792 ASSERT(mPcdDatabase.DxeDb != NULL);\r
793 PcdDxeDbLen = mPcdDatabase.DxeDb->Length + mPcdDatabase.DxeDb->UninitDataBaseSize;\r
794 PcdDxeDb = AllocateZeroPool (PcdDxeDbLen);\r
795 ASSERT (PcdDxeDb != NULL);\r
796 CopyMem (PcdDxeDb, mPcdDatabase.DxeDb, mPcdDatabase.DxeDb->Length);\r
797 FreePool (mPcdDatabase.DxeDb);\r
798 mPcdDatabase.DxeDb = PcdDxeDb;\r
799\r
800 //\r
801 // Initialized the external PCD database local variables\r
802 //\r
803 mPeiLocalTokenCount = mPcdDatabase.PeiDb->LocalTokenCount;\r
804 mDxeLocalTokenCount = mPcdDatabase.DxeDb->LocalTokenCount;\r
805\r
806 mPeiExMapppingTableSize = mPcdDatabase.PeiDb->ExTokenCount * sizeof (DYNAMICEX_MAPPING);\r
807 mDxeExMapppingTableSize = mPcdDatabase.DxeDb->ExTokenCount * sizeof (DYNAMICEX_MAPPING);\r
808 mPeiGuidTableSize = mPcdDatabase.PeiDb->GuidTableCount * sizeof(GUID);\r
809 mDxeGuidTableSize = mPcdDatabase.DxeDb->GuidTableCount * sizeof (GUID);\r
810\r
811 mPcdTotalTokenCount = mPeiLocalTokenCount + mDxeLocalTokenCount;\r
812 mPeiNexTokenCount = mPeiLocalTokenCount - mPcdDatabase.PeiDb->ExTokenCount;\r
813 mDxeNexTokenCount = mDxeLocalTokenCount - mPcdDatabase.DxeDb->ExTokenCount; \r
814\r
815 mPeiExMapTableEmpty = (mPcdDatabase.PeiDb->ExTokenCount == 0) ? TRUE : FALSE;\r
816 mDxeExMapTableEmpty = (mPcdDatabase.DxeDb->ExTokenCount == 0) ? TRUE : FALSE;\r
817 mPeiDatabaseEmpty = (mPeiLocalTokenCount == 0) ? TRUE : FALSE;\r
818\r
819 TmpTokenSpaceBufferCount = mPcdDatabase.PeiDb->ExTokenCount + mPcdDatabase.DxeDb->ExTokenCount;\r
820 TmpTokenSpaceBuffer = (EFI_GUID **)AllocateZeroPool(TmpTokenSpaceBufferCount * sizeof (EFI_GUID *));\r
821\r
822 //\r
823 // Initialized the Callback Function Table\r
824 //\r
825 mCallbackFnTable = AllocateZeroPool (mPcdTotalTokenCount * sizeof (LIST_ENTRY));\r
826 ASSERT(mCallbackFnTable != NULL);\r
827\r
828 //\r
829 // EBC compiler is very choosy. It may report warning about comparison\r
830 // between UINTN and 0 . So we add 1 in each size of the \r
831 // comparison.\r
832 //\r
833 for (Index = 0; Index + 1 < mPcdTotalTokenCount + 1; Index++) {\r
834 InitializeListHead (&mCallbackFnTable[Index]);\r
835 }\r
836}\r
837\r
838/**\r
839 Get Variable which contains HII type PCD entry.\r
840\r
841 @param VariableGuid Variable's guid\r
842 @param VariableName Variable's unicode name string\r
843 @param VariableData Variable's data pointer, \r
844 @param VariableSize Variable's size.\r
845\r
846 @return the status of gRT->GetVariable\r
847**/\r
848EFI_STATUS\r
849GetHiiVariable (\r
850 IN EFI_GUID *VariableGuid,\r
851 IN UINT16 *VariableName,\r
852 OUT UINT8 **VariableData,\r
853 OUT UINTN *VariableSize\r
854 )\r
855{\r
856 UINTN Size;\r
857 EFI_STATUS Status;\r
858 UINT8 *Buffer;\r
859\r
860 Size = 0;\r
861 Buffer = NULL;\r
862 \r
863 //\r
864 // Firstly get the real size of HII variable\r
865 //\r
866 Status = gRT->GetVariable (\r
867 (UINT16 *)VariableName,\r
868 VariableGuid,\r
869 NULL,\r
870 &Size,\r
871 Buffer\r
872 );\r
873 \r
874 //\r
875 // Allocate buffer to hold whole variable data according to variable size.\r
876 //\r
877 if (Status == EFI_BUFFER_TOO_SMALL) {\r
878 Buffer = (UINT8 *) AllocatePool (Size);\r
879\r
880 ASSERT (Buffer != NULL);\r
881\r
882 Status = gRT->GetVariable (\r
883 VariableName,\r
884 VariableGuid,\r
885 NULL,\r
886 &Size,\r
887 Buffer\r
888 );\r
889\r
890 ASSERT (Status == EFI_SUCCESS);\r
891 *VariableData = Buffer;\r
892 *VariableSize = Size;\r
893 } else {\r
894 //\r
895 // Use Default Data only when variable is not found. \r
896 // For other error status, correct data can't be got, and trig ASSERT().\r
897 //\r
898 ASSERT (Status == EFI_NOT_FOUND);\r
899 }\r
900\r
901 return Status;\r
902}\r
903\r
904/**\r
905 Find the local token number according to system SKU ID.\r
906\r
907 @param LocalTokenNumber PCD token number\r
908 @param Size The size of PCD entry.\r
909 @param IsPeiDb If TRUE, the PCD entry is initialized in PEI phase.\r
910 If False, the PCD entry is initialized in DXE phase.\r
911\r
912 @return Token number according to system SKU ID.\r
913\r
914**/\r
915UINT32\r
916GetSkuEnabledTokenNumber (\r
917 UINT32 LocalTokenNumber,\r
918 UINTN Size,\r
919 BOOLEAN IsPeiDb\r
920 ) \r
921{\r
922 SKU_HEAD *SkuHead;\r
923 SKU_ID *SkuIdTable;\r
924 INTN Index;\r
925 UINT8 *Value;\r
926 UINT8 *PcdDb;\r
927 BOOLEAN FoundSku;\r
928\r
929 ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r
930\r
931 PcdDb = IsPeiDb ? (UINT8 *) mPcdDatabase.PeiDb : (UINT8 *) mPcdDatabase.DxeDb;\r
932\r
933 SkuHead = (SKU_HEAD *) (PcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r
934 Value = (UINT8 *) (PcdDb + SkuHead->SkuDataStartOffset); \r
935\r
936 SkuIdTable = (SKU_ID *)(PcdDb + SkuHead->SkuIdTableOffset);\r
937 //\r
938 // Find the current system's SKU ID entry in SKU ID table.\r
939 //\r
940 FoundSku = FALSE;\r
941 for (Index = 0; Index < SkuIdTable[0]; Index++) {\r
942 if (mPcdDatabase.PeiDb->SystemSkuId == SkuIdTable[Index + 1]) {\r
943 FoundSku = TRUE;\r
944 break;\r
945 }\r
946 }\r
947 \r
948 //\r
949 // Find the default SKU ID entry in SKU ID table.\r
950 //\r
951 \r
952 if(!FoundSku) {\r
953 for (Index = 0; Index < SkuIdTable[0]; Index++) {\r
954 if (0 == SkuIdTable[Index + 1]) {\r
955 break;\r
956 }\r
957 }\r
958 }\r
959 ASSERT (Index < SkuIdTable[0]);\r
960\r
961 switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r
962 case PCD_TYPE_VPD:\r
963 Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);\r
964 return (UINT32) ((Value - PcdDb) | PCD_TYPE_VPD);\r
965\r
966 case PCD_TYPE_HII:\r
967 Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r
968 return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII);\r
969\r
970 case PCD_TYPE_HII|PCD_TYPE_STRING:\r
971 Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r
972 return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII | PCD_TYPE_STRING);\r
973\r
974 case PCD_TYPE_STRING:\r
975 Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);\r
976 return (UINT32) ((Value - PcdDb) | PCD_TYPE_STRING);\r
977 \r
978 case PCD_TYPE_DATA:\r
979 Value += Size * Index;\r
980 return (UINT32) ((Value - PcdDb) | PCD_TYPE_DATA);\r
981\r
982 default:\r
983 ASSERT (FALSE);\r
984 }\r
985\r
986 ASSERT (FALSE);\r
987\r
988 return 0;\r
989 \r
990}\r
991\r
992/**\r
993 Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r
994 has registered callback function.\r
995\r
996 @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r
997 type PCD.\r
998 @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r
999 PCD.\r
1000 @param TokenNumber PCD token number generated by build tools.\r
1001 @param Data Value want to be set for this PCD entry\r
1002 @param Size The size of value\r
1003\r
1004**/\r
1005VOID\r
1006InvokeCallbackOnSet (\r
1007 UINT32 ExTokenNumber,\r
1008 CONST EFI_GUID *Guid, OPTIONAL\r
1009 UINTN TokenNumber,\r
1010 VOID *Data,\r
1011 UINTN Size\r
1012 )\r
1013{\r
1014 CALLBACK_FN_ENTRY *FnTableEntry;\r
1015 LIST_ENTRY *ListHead;\r
1016 LIST_ENTRY *ListNode;\r
1017\r
1018 //\r
1019 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
1020 // We have to decrement TokenNumber by 1 to make it usable\r
1021 // as the array index of mCallbackFnTable[].\r
1022 //\r
1023 ListHead = &mCallbackFnTable[TokenNumber - 1];\r
1024 ListNode = GetFirstNode (ListHead);\r
1025\r
1026 while (ListNode != ListHead) {\r
1027 FnTableEntry = CR_FNENTRY_FROM_LISTNODE (ListNode, CALLBACK_FN_ENTRY, Node);\r
1028\r
1029 FnTableEntry->CallbackFn(Guid, \r
1030 (Guid == NULL) ? TokenNumber : ExTokenNumber,\r
1031 Data,\r
1032 Size);\r
1033 \r
1034 ListNode = GetNextNode (ListHead, ListNode);\r
1035 }\r
1036 \r
1037 return;\r
1038}\r
1039\r
1040\r
1041/**\r
1042 Wrapper function for setting non-pointer type value for a PCD entry.\r
1043\r
1044 @param TokenNumber Pcd token number autogenerated by build tools.\r
1045 @param Data Value want to be set for PCD entry\r
1046 @param Size Size of value.\r
1047\r
1048 @return status of SetWorker.\r
1049\r
1050**/\r
1051EFI_STATUS\r
1052SetValueWorker (\r
1053 IN UINTN TokenNumber,\r
1054 IN VOID *Data,\r
1055 IN UINTN Size\r
1056 )\r
1057{\r
1058 return SetWorker (TokenNumber, Data, &Size, FALSE);\r
1059}\r
1060\r
1061\r
1062/**\r
1063 Set value for an PCD entry\r
1064\r
1065 @param TokenNumber Pcd token number autogenerated by build tools.\r
1066 @param Data Value want to be set for PCD entry\r
1067 @param Size Size of value.\r
1068 @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r
1069 If False, the type of PCD entry's value is not Pointer.\r
1070\r
1071 @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r
1072 @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r
1073 @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database. \r
1074 @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r
1075 range of UINT8, UINT16, UINT32, UINT64\r
1076 @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r
1077**/\r
1078EFI_STATUS\r
1079SetWorker (\r
1080 IN UINTN TokenNumber,\r
1081 IN VOID *Data,\r
1082 IN OUT UINTN *Size,\r
1083 IN BOOLEAN PtrType\r
1084 )\r
1085{\r
1086 BOOLEAN IsPeiDb;\r
1087 UINT32 LocalTokenNumber;\r
1088 EFI_GUID *GuidTable;\r
1089 UINT8 *StringTable;\r
1090 EFI_GUID *Guid;\r
1091 UINT16 *Name;\r
1092 UINTN VariableOffset;\r
1093 VOID *InternalData;\r
1094 VARIABLE_HEAD *VariableHead;\r
1095 UINTN Offset;\r
1096 UINT8 *PcdDb;\r
1097 EFI_STATUS Status;\r
1098 UINTN MaxSize;\r
1099 UINTN TmpTokenNumber;\r
1100\r
1101 //\r
1102 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
1103 // We have to decrement TokenNumber by 1 to make it usable\r
1104 // as the array index.\r
1105 //\r
1106 TokenNumber--;\r
1107\r
1108 TmpTokenNumber = TokenNumber;\r
1109 \r
1110 //\r
1111 // EBC compiler is very choosy. It may report warning about comparison\r
1112 // between UINTN and 0 . So we add 1 in each size of the \r
1113 // comparison.\r
1114 //\r
1115 ASSERT (TokenNumber + 1 < mPcdTotalTokenCount + 1);\r
1116\r
1117 if (PtrType) {\r
1118 //\r
1119 // Get MaxSize first, then check new size with max buffer size.\r
1120 //\r
1121 GetPtrTypeSize (TokenNumber, &MaxSize);\r
1122 if (*Size > MaxSize) {\r
1123 *Size = MaxSize;\r
1124 return EFI_INVALID_PARAMETER;\r
1125 }\r
1126 } else {\r
1127 if (*Size != DxePcdGetSize (TokenNumber + 1)) {\r
1128 return EFI_INVALID_PARAMETER;\r
1129 }\r
1130 }\r
1131\r
1132 //\r
1133 // EBC compiler is very choosy. It may report warning about comparison\r
1134 // between UINTN and 0 . So we add 1 in each size of the \r
1135 // comparison.\r
1136 //\r
1137 if ((TokenNumber + 1 < mPeiNexTokenCount + 1) ||\r
1138 (TokenNumber + 1 >= mPeiLocalTokenCount + 1 && TokenNumber + 1 < (mPeiLocalTokenCount + mDxeNexTokenCount + 1))) {\r
1139 InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r
1140 }\r
1141\r
1142 //\r
1143 // Aquire lock to prevent reentrance from TPL_CALLBACK level\r
1144 //\r
1145 EfiAcquireLock (&mPcdDatabaseLock);\r
1146\r
1147 //\r
1148 // EBC compiler is very choosy. It may report warning about comparison\r
1149 // between UINTN and 0 . So we add 1 in each size of the \r
1150 // comparison.\r
1151 //\r
1152 IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < mPeiLocalTokenCount + 1) ? TRUE : FALSE);\r
1153\r
1154 LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber + 1);\r
1155\r
1156 Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r
1157\r
1158 PcdDb = IsPeiDb ? ((UINT8 *) mPcdDatabase.PeiDb) : ((UINT8 *) mPcdDatabase.DxeDb);\r
1159\r
1160 if (IsPeiDb) {\r
1161 StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->StringTableOffset);\r
1162 } else {\r
1163 StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->StringTableOffset);\r
1164 }\r
1165\r
1166 \r
1167 InternalData = PcdDb + Offset;\r
1168\r
1169 switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r
1170 case PCD_TYPE_VPD:\r
1171 ASSERT (FALSE);\r
1172 Status = EFI_INVALID_PARAMETER;\r
1173 break;\r
1174 \r
1175 case PCD_TYPE_STRING:\r
1176 if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r
1177 CopyMem (StringTable + *((STRING_HEAD *)InternalData), Data, *Size);\r
1178 Status = EFI_SUCCESS;\r
1179 } else {\r
1180 Status = EFI_INVALID_PARAMETER;\r
1181 }\r
1182 break;\r
1183\r
1184 case PCD_TYPE_HII|PCD_TYPE_STRING:\r
1185 case PCD_TYPE_HII:\r
1186 if (PtrType) {\r
1187 if (!SetPtrTypeSize (TmpTokenNumber, Size)) {\r
1188 Status = EFI_INVALID_PARAMETER;\r
1189 break;\r
1190 }\r
1191 }\r
1192\r
1193 if (IsPeiDb) {\r
1194 GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r
1195 } else {\r
1196 GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r
1197 }\r
1198\r
1199 VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r
1200\r
1201 Guid = GuidTable + VariableHead->GuidTableIndex;\r
1202 Name = (UINT16*) (StringTable + VariableHead->StringIndex);\r
1203 VariableOffset = VariableHead->Offset;\r
1204 Status = SetHiiVariable (Guid, Name, Data, *Size, VariableOffset);\r
1205\r
1206 if (EFI_NOT_FOUND == Status) {\r
1207 if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r
1208 CopyMem (\r
1209 StringTable + *(STRING_HEAD *)(PcdDb + VariableHead->DefaultValueOffset),\r
1210 Data,\r
1211 *Size\r
1212 );\r
1213 } else {\r
1214 CopyMem (PcdDb + VariableHead->DefaultValueOffset, Data, *Size);\r
1215 } \r
1216 Status = EFI_SUCCESS;\r
1217 }\r
1218 break;\r
1219 \r
1220 case PCD_TYPE_DATA:\r
1221 if (PtrType) {\r
1222 if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r
1223 CopyMem (InternalData, Data, *Size);\r
1224 Status = EFI_SUCCESS;\r
1225 } else {\r
1226 Status = EFI_INVALID_PARAMETER;\r
1227 }\r
1228 break;\r
1229 }\r
1230\r
1231 Status = EFI_SUCCESS;\r
1232 switch (*Size) {\r
1233 case sizeof(UINT8):\r
1234 *((UINT8 *) InternalData) = *((UINT8 *) Data);\r
1235 break;\r
1236\r
1237 case sizeof(UINT16):\r
1238 *((UINT16 *) InternalData) = *((UINT16 *) Data);\r
1239 break;\r
1240\r
1241 case sizeof(UINT32):\r
1242 *((UINT32 *) InternalData) = *((UINT32 *) Data);\r
1243 break;\r
1244\r
1245 case sizeof(UINT64):\r
1246 *((UINT64 *) InternalData) = *((UINT64 *) Data);\r
1247 break;\r
1248\r
1249 default:\r
1250 ASSERT (FALSE);\r
1251 Status = EFI_NOT_FOUND;\r
1252 break;\r
1253 }\r
1254 break;\r
1255\r
1256 default:\r
1257 ASSERT (FALSE);\r
1258 Status = EFI_NOT_FOUND;\r
1259 break;\r
1260 }\r
1261\r
1262 EfiReleaseLock (&mPcdDatabaseLock);\r
1263 \r
1264 return Status;\r
1265}\r
1266\r
1267/**\r
1268 Wrapper function for get PCD value for dynamic-ex PCD.\r
1269\r
1270 @param Guid Token space guid for dynamic-ex PCD.\r
1271 @param ExTokenNumber Token number for dynamic-ex PCD.\r
1272 @param GetSize The size of dynamic-ex PCD value.\r
1273\r
1274 @return PCD entry in PCD database.\r
1275\r
1276**/\r
1277VOID *\r
1278ExGetWorker (\r
1279 IN CONST EFI_GUID *Guid,\r
1280 IN UINTN ExTokenNumber,\r
1281 IN UINTN GetSize\r
1282 ) \r
1283{\r
1284 return GetWorker(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber), GetSize);\r
1285}\r
1286\r
1287/**\r
1288 Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r
1289\r
1290 @param ExTokenNumber Token number for dynamic-ex PCD.\r
1291 @param Guid Token space guid for dynamic-ex PCD.\r
1292 @param Data Value want to be set.\r
1293 @param SetSize The size of value.\r
1294\r
1295 @return status of ExSetWorker().\r
1296\r
1297**/\r
1298EFI_STATUS\r
1299ExSetValueWorker (\r
1300 IN UINTN ExTokenNumber,\r
1301 IN CONST EFI_GUID *Guid,\r
1302 IN VOID *Data,\r
1303 IN UINTN SetSize\r
1304 )\r
1305{\r
1306 return ExSetWorker (ExTokenNumber, Guid, Data, &SetSize, FALSE);\r
1307}\r
1308\r
1309/**\r
1310 Set value for a dynamic-ex PCD entry.\r
1311 \r
1312 This routine find the local token number according to dynamic-ex PCD's token \r
1313 space guid and token number firstly, and invoke callback function if this PCD\r
1314 entry registered callback function. Finally, invoken general SetWorker to set\r
1315 PCD value.\r
1316 \r
1317 @param ExTokenNumber Dynamic-ex PCD token number.\r
1318 @param Guid Token space guid for dynamic-ex PCD.\r
1319 @param Data PCD value want to be set\r
1320 @param SetSize Size of value.\r
1321 @param PtrType If TRUE, this PCD entry is pointer type.\r
1322 If FALSE, this PCD entry is not pointer type.\r
1323\r
1324 @return status of SetWorker().\r
1325\r
1326**/\r
1327EFI_STATUS\r
1328ExSetWorker (\r
1329 IN UINTN ExTokenNumber,\r
1330 IN CONST EFI_GUID *Guid,\r
1331 IN VOID *Data,\r
1332 IN OUT UINTN *SetSize,\r
1333 IN BOOLEAN PtrType\r
1334 )\r
1335{\r
1336 UINTN TokenNumber;\r
1337 \r
1338 TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber);\r
1339\r
1340 InvokeCallbackOnSet ((UINT32) ExTokenNumber, Guid, TokenNumber, Data, *SetSize);\r
1341\r
1342 return SetWorker (TokenNumber, Data, SetSize, PtrType);\r
1343\r
1344}\r
1345\r
1346/**\r
1347 Set value for HII-type PCD.\r
1348\r
1349 A HII-type PCD's value is stored in a variable. Setting/Getting the value of \r
1350 HII-type PCD is to visit this variable.\r
1351 \r
1352 @param VariableGuid Guid of variable which stored value of a HII-type PCD.\r
1353 @param VariableName Unicode name of variable which stored value of a HII-type PCD.\r
1354 @param Data Value want to be set.\r
1355 @param DataSize Size of value\r
1356 @param Offset Value offset of HII-type PCD in variable.\r
1357\r
1358 @return status of GetVariable()/SetVariable().\r
1359\r
1360**/\r
1361EFI_STATUS\r
1362SetHiiVariable (\r
1363 IN EFI_GUID *VariableGuid,\r
1364 IN UINT16 *VariableName,\r
1365 IN CONST VOID *Data,\r
1366 IN UINTN DataSize,\r
1367 IN UINTN Offset\r
1368 )\r
1369{\r
1370 UINTN Size;\r
1371 VOID *Buffer;\r
1372 EFI_STATUS Status;\r
1373 UINT32 Attribute;\r
1374 UINTN SetSize;\r
1375\r
1376 Size = 0;\r
1377 SetSize = 0;\r
1378\r
1379 //\r
1380 // Try to get original variable size information.\r
1381 //\r
1382 Status = gRT->GetVariable (\r
1383 (UINT16 *)VariableName,\r
1384 VariableGuid,\r
1385 NULL,\r
1386 &Size,\r
1387 NULL\r
1388 );\r
1389 \r
1390 if (Status == EFI_BUFFER_TOO_SMALL) {\r
1391 //\r
1392 // Patch new PCD's value to offset in given HII variable.\r
1393 //\r
1394 if (Size >= (DataSize + Offset)) {\r
1395 SetSize = Size;\r
1396 } else {\r
1397 SetSize = DataSize + Offset;\r
1398 }\r
1399 Buffer = AllocatePool (SetSize);\r
1400 ASSERT (Buffer != NULL);\r
1401\r
1402 Status = gRT->GetVariable (\r
1403 VariableName,\r
1404 VariableGuid,\r
1405 &Attribute,\r
1406 &Size,\r
1407 Buffer\r
1408 );\r
1409 \r
1410 ASSERT_EFI_ERROR (Status);\r
1411\r
1412 CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r
1413\r
1414 Status = gRT->SetVariable (\r
1415 VariableName,\r
1416 VariableGuid,\r
1417 Attribute,\r
1418 SetSize,\r
1419 Buffer\r
1420 );\r
1421\r
1422 FreePool (Buffer);\r
1423 return Status;\r
1424 } else if (Status == EFI_NOT_FOUND) {\r
1425 //\r
1426 // If variable does not exist, a new variable need to be created.\r
1427 //\r
1428 \r
1429 Size = Offset + DataSize;\r
1430 \r
1431 Buffer = AllocateZeroPool (Size);\r
1432 ASSERT (Buffer != NULL);\r
1433 \r
1434 CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r
1435 \r
1436 Status = gRT->SetVariable (\r
1437 VariableName,\r
1438 VariableGuid,\r
1439 EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r
1440 Size,\r
1441 Buffer\r
1442 );\r
1443\r
1444 FreePool (Buffer);\r
1445 return Status; \r
1446 }\r
1447 \r
1448 //\r
1449 // If we drop to here, the value is failed to be written in to variable area\r
1450 // So, we will save the data in the PCD Database's volatile area.\r
1451 //\r
1452 return Status;\r
1453}\r
1454\r
1455/**\r
1456 Get Token Number according to dynamic-ex PCD's {token space guid:token number}\r
1457\r
1458 A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r
1459 in DEC file. PCD database maintain a mapping table that translate pair of {token\r
1460 space guid: token number} to Token Number.\r
1461 \r
1462 @param Guid Token space guid for dynamic-ex PCD entry.\r
1463 @param ExTokenNumber Dynamic-ex PCD token number.\r
1464\r
1465 @return Token Number for dynamic-ex PCD.\r
1466\r
1467**/\r
1468UINTN \r
1469GetExPcdTokenNumber (\r
1470 IN CONST EFI_GUID *Guid,\r
1471 IN UINT32 ExTokenNumber\r
1472 )\r
1473{\r
1474 UINT32 Index;\r
1475 DYNAMICEX_MAPPING *ExMap;\r
1476 EFI_GUID *GuidTable;\r
1477 EFI_GUID *MatchGuid;\r
1478 UINTN MatchGuidIdx;\r
1479\r
1480 if (!mPeiDatabaseEmpty) {\r
1481 ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->ExMapTableOffset);\r
1482 GuidTable = (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r
1483\r
1484 MatchGuid = ScanGuid (GuidTable, mPeiGuidTableSize, Guid);\r
1485\r
1486 if (MatchGuid != NULL) {\r
1487\r
1488 MatchGuidIdx = MatchGuid - GuidTable;\r
1489\r
1490 for (Index = 0; Index < mPeiExMapppingTableSize; Index++) {\r
1491 if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r
1492 (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r
1493 return ExMap[Index].TokenNumber;\r
1494 }\r
1495 }\r
1496 }\r
1497 }\r
1498\r
1499 ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->ExMapTableOffset);\r
1500 GuidTable = (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r
1501\r
1502 MatchGuid = ScanGuid (GuidTable, mDxeGuidTableSize, Guid);\r
1503 //\r
1504 // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r
1505 // error in the BUILD system.\r
1506 //\r
1507 ASSERT (MatchGuid != NULL);\r
1508\r
1509 MatchGuidIdx = MatchGuid - GuidTable;\r
1510\r
1511 for (Index = 0; Index < mDxeExMapppingTableSize; Index++) {\r
1512 if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r
1513 (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r
1514 return ExMap[Index].TokenNumber;\r
1515 }\r
1516 }\r
1517\r
1518 ASSERT (FALSE);\r
1519\r
1520 return 0;\r
1521}\r
1522\r
1523/**\r
1524 Get SKU ID table from PCD database.\r
1525\r
1526 @param LocalTokenNumberTableIdx Index of local token number in token number table.\r
1527 @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r
1528 If FALSE, the pcd entry is initialized in DXE phase.\r
1529 @return Pointer to SKU ID array table\r
1530\r
1531**/\r
1532SKU_ID *\r
1533GetSkuIdArray (\r
1534 IN UINTN LocalTokenNumberTableIdx,\r
1535 IN BOOLEAN IsPeiDb\r
1536 )\r
1537{\r
1538 SKU_HEAD *SkuHead;\r
1539 UINTN LocalTokenNumber;\r
1540 UINT8 *Database;\r
1541\r
1542 if (IsPeiDb) {\r
1543 LocalTokenNumber = *((UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);\r
1544 Database = (UINT8 *) mPcdDatabase.PeiDb;\r
1545 } else {\r
1546 LocalTokenNumber = *((UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);\r
1547 Database = (UINT8 *) mPcdDatabase.DxeDb;\r
1548 }\r
1549\r
1550 ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r
1551\r
1552 SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r
1553\r
1554 return (SKU_ID *) (Database + SkuHead->SkuIdTableOffset);\r
1555 \r
1556}\r
1557\r
1558/**\r
1559 Wrapper function of getting index of PCD entry in size table.\r
1560 \r
1561 @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r
1562 @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r
1563 If FALSE, the pcd entry is initialized in DXE phase.\r
1564\r
1565 @return index of PCD entry in size table.\r
1566**/\r
1567UINTN\r
1568GetSizeTableIndex (\r
1569 IN UINTN LocalTokenNumberTableIdx,\r
1570 IN BOOLEAN IsPeiDb\r
1571 )\r
1572{\r
1573 UINT32 *LocalTokenNumberTable;\r
1574 UINTN LocalTokenNumber;\r
1575 UINTN Index;\r
1576 UINTN SizeTableIdx;\r
1577 SKU_ID *SkuIdTable;\r
1578 \r
1579 if (IsPeiDb) {\r
1580 LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r
1581 } else {\r
1582 LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r
1583 }\r
1584\r
1585 SizeTableIdx = 0;\r
1586\r
1587 for (Index = 0; Index < LocalTokenNumberTableIdx; Index ++) {\r
1588 LocalTokenNumber = LocalTokenNumberTable[Index];\r
1589\r
1590 if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r
1591 //\r
1592 // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r
1593 // PCD entry.\r
1594 //\r
1595 if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r
1596 //\r
1597 // We have only two entry for VPD enabled PCD entry:\r
1598 // 1) MAX Size.\r
1599 // 2) Current Size\r
1600 // Current size is equal to MAX size.\r
1601 //\r
1602 SizeTableIdx += 2;\r
1603 } else {\r
1604 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r
1605 //\r
1606 // We have only two entry for Non-Sku enabled PCD entry:\r
1607 // 1) MAX SIZE\r
1608 // 2) Current Size\r
1609 //\r
1610 SizeTableIdx += 2;\r
1611 } else {\r
1612 //\r
1613 // We have these entry for SKU enabled PCD entry\r
1614 // 1) MAX SIZE\r
1615 // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r
1616 //\r
1617 SkuIdTable = GetSkuIdArray (Index, IsPeiDb);\r
1618 SizeTableIdx += (UINTN)*SkuIdTable + 1;\r
1619 }\r
1620 }\r
1621 }\r
1622\r
1623 }\r
1624\r
1625 return SizeTableIdx; \r
1626}\r
1627\r
1628/**\r
1629 Get size of POINTER type PCD value.\r
1630\r
1631 @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r
1632 @param MaxSize Maxmium size of POINTER type PCD value.\r
1633\r
1634 @return size of POINTER type PCD value.\r
1635\r
1636**/\r
1637UINTN\r
1638GetPtrTypeSize (\r
1639 IN UINTN LocalTokenNumberTableIdx,\r
1640 OUT UINTN *MaxSize\r
1641 )\r
1642{\r
1643 INTN SizeTableIdx;\r
1644 UINTN LocalTokenNumber;\r
1645 SKU_ID *SkuIdTable;\r
1646 SIZE_INFO *SizeTable;\r
1647 UINTN Index;\r
1648 BOOLEAN IsPeiDb;\r
1649 UINT32 *LocalTokenNumberTable;\r
1650\r
1651 // EBC compiler is very choosy. It may report warning about comparison\r
1652 // between UINTN and 0 . So we add 1 in each size of the \r
1653 // comparison.\r
1654 IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < mPeiLocalTokenCount + 1);\r
1655\r
1656\r
1657 if (IsPeiDb) {\r
1658 LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r
1659 SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->SizeTableOffset);\r
1660 } else {\r
1661 LocalTokenNumberTableIdx -= mPeiLocalTokenCount;\r
1662 LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r
1663 SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SizeTableOffset);\r
1664 }\r
1665\r
1666 LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r
1667\r
1668 ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r
1669 \r
1670 SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r
1671\r
1672 *MaxSize = SizeTable[SizeTableIdx];\r
1673 //\r
1674 // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r
1675 // PCD entry.\r
1676 //\r
1677 if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r
1678 //\r
1679 // We have only two entry for VPD enabled PCD entry:\r
1680 // 1) MAX Size.\r
1681 // 2) Current Size\r
1682 // We consider current size is equal to MAX size.\r
1683 //\r
1684 return *MaxSize;\r
1685 } else {\r
1686 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r
1687 //\r
1688 // We have only two entry for Non-Sku enabled PCD entry:\r
1689 // 1) MAX SIZE\r
1690 // 2) Current Size\r
1691 //\r
1692 return SizeTable[SizeTableIdx + 1];\r
1693 } else {\r
1694 //\r
1695 // We have these entry for SKU enabled PCD entry\r
1696 // 1) MAX SIZE\r
1697 // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r
1698 //\r
1699 SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);\r
1700 for (Index = 0; Index < SkuIdTable[0]; Index++) {\r
1701 if (SkuIdTable[1 + Index] == mPcdDatabase.PeiDb->SystemSkuId) {\r
1702 return SizeTable[SizeTableIdx + 1 + Index];\r
1703 }\r
1704 }\r
1705 return SizeTable[SizeTableIdx + 1];\r
1706 }\r
1707 }\r
1708}\r
1709\r
1710/**\r
1711 Set size of POINTER type PCD value. The size should not exceed the maximum size\r
1712 of this PCD value.\r
1713\r
1714 @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r
1715 @param CurrentSize Size of POINTER type PCD value.\r
1716\r
1717 @retval TRUE Success to set size of PCD value.\r
1718 @retval FALSE Fail to set size of PCD value.\r
1719**/\r
1720BOOLEAN\r
1721SetPtrTypeSize (\r
1722 IN UINTN LocalTokenNumberTableIdx,\r
1723 IN OUT UINTN *CurrentSize\r
1724 )\r
1725{\r
1726 INTN SizeTableIdx;\r
1727 UINTN LocalTokenNumber;\r
1728 SKU_ID *SkuIdTable;\r
1729 SIZE_INFO *SizeTable;\r
1730 UINTN Index;\r
1731 UINTN MaxSize;\r
1732 BOOLEAN IsPeiDb;\r
1733 UINT32 *LocalTokenNumberTable;\r
1734\r
1735 //\r
1736 // EBC compiler is very choosy. It may report warning about comparison\r
1737 // between UINTN and 0 . So we add 1 in each size of the \r
1738 // comparison.\r
1739 //\r
1740 IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < mPeiLocalTokenCount + 1);\r
1741\r
1742 if (IsPeiDb) {\r
1743 LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r
1744 SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->SizeTableOffset);\r
1745 } else {\r
1746 LocalTokenNumberTableIdx -= mPeiLocalTokenCount;\r
1747 LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r
1748 SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SizeTableOffset);\r
1749 }\r
1750\r
1751 LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r
1752\r
1753 ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r
1754 \r
1755 SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r
1756\r
1757 MaxSize = SizeTable[SizeTableIdx];\r
1758 //\r
1759 // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r
1760 // PCD entry.\r
1761 //\r
1762 if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r
1763 //\r
1764 // We shouldn't come here as we don't support SET for VPD\r
1765 //\r
1766 ASSERT (FALSE);\r
1767 return FALSE;\r
1768 } else {\r
1769 if ((*CurrentSize > MaxSize) ||\r
1770 (*CurrentSize == MAX_ADDRESS)) {\r
1771 *CurrentSize = MaxSize;\r
1772 return FALSE;\r
1773 } \r
1774 \r
1775 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r
1776 //\r
1777 // We have only two entry for Non-Sku enabled PCD entry:\r
1778 // 1) MAX SIZE\r
1779 // 2) Current Size\r
1780 //\r
1781 SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r
1782 return TRUE;\r
1783 } else {\r
1784 //\r
1785 // We have these entry for SKU enabled PCD entry\r
1786 // 1) MAX SIZE\r
1787 // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r
1788 //\r
1789 SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);\r
1790 for (Index = 0; Index < SkuIdTable[0]; Index++) {\r
1791 if (SkuIdTable[1 + Index] == mPcdDatabase.PeiDb->SystemSkuId) {\r
1792 SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize;\r
1793 return TRUE;\r
1794 }\r
1795 }\r
1796 SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r
1797 return TRUE;\r
1798 }\r
1799 }\r
1800}\r