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Remove unnecessary use of FixedPcdxxx() functions and [FixedPcd] INF sections. These...
[mirror_edk2.git] / MdeModulePkg / Universal / PCD / Dxe / Service.c
1 /** @file
2 Help functions used by PCD DXE driver.
3
4 Copyright (c) 2006 - 2010, Intel Corporation
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "Service.h"
16
17 PCD_DATABASE * mPcdDatabase;
18
19 LIST_ENTRY *mCallbackFnTable;
20
21 /**
22 Get the PCD entry pointer in PCD database.
23
24 This routine will visit PCD database to find the PCD entry according to given
25 token number. The given token number is autogened by build tools and it will be
26 translated to local token number. Local token number contains PCD's type and
27 offset of PCD entry in PCD database.
28
29 @param TokenNumber Token's number, it is autogened by build tools
30 @param GetSize The size of token's value
31
32 @return PCD entry pointer in PCD database
33
34 **/
35 VOID *
36 GetWorker (
37 IN UINTN TokenNumber,
38 IN UINTN GetSize
39 )
40 {
41 UINT32 *LocalTokenNumberTable;
42 EFI_GUID *GuidTable;
43 UINT8 *StringTable;
44 EFI_GUID *Guid;
45 UINT16 *Name;
46 VARIABLE_HEAD *VariableHead;
47 UINT8 *VaraiableDefaultBuffer;
48 UINT8 *Data;
49 VPD_HEAD *VpdHead;
50 UINT8 *PcdDb;
51 VOID *RetPtr;
52 UINTN MaxSize;
53 UINTN TmpTokenNumber;
54 UINTN DataSize;
55 EFI_STATUS Status;
56 UINT32 LocalTokenNumber;
57 UINT32 Offset;
58 UINT16 StringTableIdx;
59 BOOLEAN IsPeiDb;
60
61 //
62 // Aquire lock to prevent reentrance from TPL_CALLBACK level
63 //
64 EfiAcquireLock (&mPcdDatabaseLock);
65
66 RetPtr = NULL;
67 //
68 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.
69 // We have to decrement TokenNumber by 1 to make it usable
70 // as the array index.
71 //
72 TokenNumber--;
73
74 TmpTokenNumber = TokenNumber;
75
76 //
77 // PCD_TOTAL_TOKEN_NUMBER is a auto-generated constant.
78 // It could be zero. EBC compiler is very choosy. It may
79 // report warning. So we add 1 in each size of the
80 // comparison.
81 //
82 ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);
83
84 ASSERT ((GetSize == DxePcdGetSize (TokenNumber + 1)) || (GetSize == 0));
85
86 // EBC compiler is very choosy. It may report warning about comparison
87 // between UINTN and 0 . So we add 1 in each size of the
88 // comparison.
89 IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1) ? TRUE : FALSE);
90
91 LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable :
92 mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
93
94 TokenNumber = IsPeiDb ? TokenNumber :
95 TokenNumber - PEI_LOCAL_TOKEN_NUMBER;
96
97 LocalTokenNumber = LocalTokenNumberTable[TokenNumber];
98
99 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {
100 if (GetSize == 0) {
101 GetPtrTypeSize (TmpTokenNumber, &MaxSize);
102 } else {
103 MaxSize = GetSize;
104 }
105 LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb);
106 }
107
108 PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb);
109
110 if (IsPeiDb) {
111 StringTable = (UINT8 *) (&mPcdDatabase->PeiDb.Init.StringTable[0]);
112 } else {
113 StringTable = (UINT8 *) (&mPcdDatabase->DxeDb.Init.StringTable[0]);
114 }
115
116
117 Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;
118
119 switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {
120 case PCD_TYPE_VPD:
121 VpdHead = (VPD_HEAD *) ((UINT8 *) PcdDb + Offset);
122 RetPtr = (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);
123 break;
124
125 case PCD_TYPE_HII:
126 if (IsPeiDb) {
127 GuidTable = (EFI_GUID *) (&mPcdDatabase->PeiDb.Init.GuidTable[0]);
128 } else {
129 GuidTable = (EFI_GUID *) (&mPcdDatabase->DxeDb.Init.GuidTable[0]);
130 }
131
132 VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);
133
134 Guid = GuidTable + VariableHead->GuidTableIndex;
135 Name = (UINT16*)(StringTable + VariableHead->StringIndex);
136 VaraiableDefaultBuffer = (UINT8 *) PcdDb + VariableHead->DefaultValueOffset;
137
138 Status = GetHiiVariable (Guid, Name, &Data, &DataSize);
139 if (Status == EFI_SUCCESS) {
140 if (GetSize == 0) {
141 //
142 // It is a pointer type. So get the MaxSize reserved for
143 // this PCD entry.
144 //
145 GetPtrTypeSize (TmpTokenNumber, &GetSize);
146 }
147 CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize);
148 FreePool (Data);
149 }
150 //
151 // If the operation is successful, we copy the data
152 // to the default value buffer in the PCD Database.
153 // So that we can free the Data allocated in GetHiiVariable.
154 //
155 //
156 // If the operation is not successful,
157 // Return 1) either the default value specified by Platform Integrator
158 // 2) Or the value Set by a PCD set operation.
159 //
160 RetPtr = (VOID *) VaraiableDefaultBuffer;
161 break;
162
163 case PCD_TYPE_STRING:
164 StringTableIdx = *(UINT16*)((UINT8 *) PcdDb + Offset);
165 RetPtr = (VOID *) (StringTable + StringTableIdx);
166 break;
167
168 case PCD_TYPE_DATA:
169 RetPtr = (VOID *) ((UINT8 *) PcdDb + Offset);
170 break;
171
172 default:
173 ASSERT (FALSE);
174 break;
175
176 }
177
178 EfiReleaseLock (&mPcdDatabaseLock);
179
180 return RetPtr;
181
182 }
183
184 /**
185 Register the callback function for a PCD entry.
186
187 This routine will register a callback function to a PCD entry by given token number
188 and token space guid.
189
190 @param TokenNumber PCD token's number, it is autogened by build tools.
191 @param Guid PCD token space's guid,
192 if not NULL, this PCD is dynamicEx type PCD.
193 @param CallBackFunction Callback function pointer
194
195 @return EFI_SUCCESS Always success for registering callback function.
196
197 **/
198 EFI_STATUS
199 DxeRegisterCallBackWorker (
200 IN UINTN TokenNumber,
201 IN CONST EFI_GUID *Guid, OPTIONAL
202 IN PCD_PROTOCOL_CALLBACK CallBackFunction
203 )
204 {
205 CALLBACK_FN_ENTRY *FnTableEntry;
206 LIST_ENTRY *ListHead;
207 LIST_ENTRY *ListNode;
208
209 if (Guid != NULL) {
210 TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);
211 }
212
213 //
214 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.
215 // We have to decrement TokenNumber by 1 to make it usable
216 // as the array index.
217 //
218 TokenNumber--;
219
220 ListHead = &mCallbackFnTable[TokenNumber];
221 ListNode = GetFirstNode (ListHead);
222
223 while (ListNode != ListHead) {
224 FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);
225
226 if (FnTableEntry->CallbackFn == CallBackFunction) {
227 //
228 // We only allow a Callback function to be register once
229 // for a TokenNumber. So just return EFI_SUCCESS
230 //
231 return EFI_SUCCESS;
232 }
233 ListNode = GetNextNode (ListHead, ListNode);
234 }
235
236 FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY));
237 ASSERT (FnTableEntry != NULL);
238
239 FnTableEntry->CallbackFn = CallBackFunction;
240 InsertTailList (ListHead, &FnTableEntry->Node);
241
242 return EFI_SUCCESS;
243 }
244
245 /**
246 UnRegister the callback function for a PCD entry.
247
248 This routine will unregister a callback function to a PCD entry by given token number
249 and token space guid.
250
251 @param TokenNumber PCD token's number, it is autogened by build tools.
252 @param Guid PCD token space's guid.
253 if not NULL, this PCD is dynamicEx type PCD.
254 @param CallBackFunction Callback function pointer
255
256 @retval EFI_SUCCESS Callback function is success to be unregister.
257 @retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number.
258 **/
259 EFI_STATUS
260 DxeUnRegisterCallBackWorker (
261 IN UINTN TokenNumber,
262 IN CONST EFI_GUID *Guid, OPTIONAL
263 IN PCD_PROTOCOL_CALLBACK CallBackFunction
264 )
265 {
266 CALLBACK_FN_ENTRY *FnTableEntry;
267 LIST_ENTRY *ListHead;
268 LIST_ENTRY *ListNode;
269
270 if (Guid != NULL) {
271 TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);
272 }
273
274 //
275 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.
276 // We have to decrement TokenNumber by 1 to make it usable
277 // as the array index.
278 //
279 TokenNumber--;
280
281 ListHead = &mCallbackFnTable[TokenNumber];
282 ListNode = GetFirstNode (ListHead);
283
284 while (ListNode != ListHead) {
285 FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);
286
287 if (FnTableEntry->CallbackFn == CallBackFunction) {
288 //
289 // We only allow a Callback function to be register once
290 // for a TokenNumber. So we can safely remove the Node from
291 // the Link List and return EFI_SUCCESS.
292 //
293 RemoveEntryList (ListNode);
294 FreePool (FnTableEntry);
295
296 return EFI_SUCCESS;
297 }
298 ListNode = GetNextNode (ListHead, ListNode);
299 }
300
301 return EFI_INVALID_PARAMETER;
302 }
303
304 /**
305 Get next token number in given token space.
306
307 This routine is used for dynamicEx type PCD. It will firstly scan token space
308 table to get token space according to given token space guid. Then scan given
309 token number in found token space, if found, then return next token number in
310 this token space.
311
312 @param Guid Token space guid. Next token number will be scaned in
313 this token space.
314 @param TokenNumber Token number.
315 If PCD_INVALID_TOKEN_NUMBER, return first token number in
316 token space table.
317 If not PCD_INVALID_TOKEN_NUMBER, return next token number
318 in token space table.
319 @param GuidTable Token space guid table. It will be used for scan token space
320 by given token space guid.
321 @param SizeOfGuidTable The size of guid table.
322 @param ExMapTable DynamicEx token number mapping table.
323 @param SizeOfExMapTable The size of dynamicEx token number mapping table.
324
325 @retval EFI_NOT_FOUND Can not given token space or token number.
326 @retval EFI_SUCCESS Success to get next token number.
327
328 **/
329 EFI_STATUS
330 ExGetNextTokeNumber (
331 IN CONST EFI_GUID *Guid,
332 IN OUT UINTN *TokenNumber,
333 IN EFI_GUID *GuidTable,
334 IN UINTN SizeOfGuidTable,
335 IN DYNAMICEX_MAPPING *ExMapTable,
336 IN UINTN SizeOfExMapTable
337 )
338 {
339 EFI_GUID *MatchGuid;
340 UINTN Index;
341 UINTN GuidTableIdx;
342 BOOLEAN Found;
343
344 //
345 // Scan token space guid
346 //
347 MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid);
348 if (MatchGuid == NULL) {
349 return EFI_NOT_FOUND;
350 }
351
352 //
353 // Find the token space table in dynamicEx mapping table.
354 //
355 Found = FALSE;
356 GuidTableIdx = MatchGuid - GuidTable;
357 for (Index = 0; Index < SizeOfExMapTable; Index++) {
358 if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {
359 Found = TRUE;
360 break;
361 }
362 }
363
364 if (Found) {
365 //
366 // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first
367 // token number in found token space.
368 //
369 if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {
370 *TokenNumber = ExMapTable[Index].ExTokenNumber;
371 return EFI_SUCCESS;
372 }
373
374 for ( ; Index < SizeOfExMapTable; Index++) {
375 if (ExMapTable[Index].ExTokenNumber == *TokenNumber) {
376 Index ++;
377 if (Index == SizeOfExMapTable) {
378 //
379 // Exceed the length of ExMap Table
380 //
381 *TokenNumber = PCD_INVALID_TOKEN_NUMBER;
382 return EFI_SUCCESS;
383 } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {
384 //
385 // Found the next match
386 //
387 *TokenNumber = ExMapTable[Index].ExTokenNumber;
388 return EFI_SUCCESS;
389 } else {
390 //
391 // Guid has been changed. It is the next Token Space Guid.
392 // We should flag no more TokenNumber.
393 //
394 *TokenNumber = PCD_INVALID_TOKEN_NUMBER;
395 return EFI_SUCCESS;
396 }
397 }
398 }
399 }
400
401 return EFI_NOT_FOUND;
402 }
403
404
405 /**
406 Initialize the PCD database in DXE phase.
407
408 PCD database in DXE phase also contains PCD database in PEI phase which is copied
409 from GUID Hob.
410
411 **/
412 VOID
413 BuildPcdDxeDataBase (
414 VOID
415 )
416 {
417 PEI_PCD_DATABASE *PeiDatabase;
418 EFI_HOB_GUID_TYPE *GuidHob;
419 UINTN Index;
420
421 mPcdDatabase = AllocateZeroPool (sizeof(PCD_DATABASE));
422 ASSERT (mPcdDatabase != NULL);
423
424 GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);
425 if (GuidHob != NULL) {
426
427 //
428 // We will copy over the PEI phase's PCD Database.
429 //
430 // If no PEIMs use dynamic Pcd Entry, the Pcd Service PEIM
431 // should not be included at all. So the GuidHob could
432 // be NULL. If it is NULL, we just copy over the DXE Default
433 // Value to PCD Database.
434 //
435
436 PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);
437 //
438 // Copy PCD Entries refereneced in PEI phase to PCD DATABASE
439 //
440 CopyMem (&mPcdDatabase->PeiDb, PeiDatabase, sizeof (PEI_PCD_DATABASE));
441 }
442
443 //
444 // Copy PCD Entries with default value to PCD DATABASE
445 //
446 CopyMem (&mPcdDatabase->DxeDb.Init, &gDXEPcdDbInit, sizeof(DXE_PCD_DATABASE_INIT));
447
448
449 //
450 // Initialized the Callback Function Table
451 //
452
453 mCallbackFnTable = AllocateZeroPool (PCD_TOTAL_TOKEN_NUMBER * sizeof (LIST_ENTRY));
454 ASSERT(mCallbackFnTable != NULL);
455
456 // EBC compiler is very choosy. It may report warning about comparison
457 // between UINTN and 0 . So we add 1 in each size of the
458 // comparison.
459 for (Index = 0; Index + 1 < PCD_TOTAL_TOKEN_NUMBER + 1; Index++) {
460 InitializeListHead (&mCallbackFnTable[Index]);
461 }
462 }
463
464 /**
465 Get Variable which contains HII type PCD entry.
466
467 @param VariableGuid Variable's guid
468 @param VariableName Variable's unicode name string
469 @param VariableData Variable's data pointer,
470 @param VariableSize Variable's size.
471
472 @return the status of gRT->GetVariable
473 **/
474 EFI_STATUS
475 GetHiiVariable (
476 IN EFI_GUID *VariableGuid,
477 IN UINT16 *VariableName,
478 OUT UINT8 **VariableData,
479 OUT UINTN *VariableSize
480 )
481 {
482 UINTN Size;
483 EFI_STATUS Status;
484 UINT8 *Buffer;
485
486 Size = 0;
487 Buffer = NULL;
488
489 //
490 // Firstly get the real size of HII variable
491 //
492 Status = gRT->GetVariable (
493 (UINT16 *)VariableName,
494 VariableGuid,
495 NULL,
496 &Size,
497 Buffer
498 );
499
500 //
501 // Allocate buffer to hold whole variable data according to variable size.
502 //
503 if (Status == EFI_BUFFER_TOO_SMALL) {
504 Buffer = (UINT8 *) AllocatePool (Size);
505
506 ASSERT (Buffer != NULL);
507
508 Status = gRT->GetVariable (
509 VariableName,
510 VariableGuid,
511 NULL,
512 &Size,
513 Buffer
514 );
515
516 ASSERT (Status == EFI_SUCCESS);
517 *VariableData = Buffer;
518 *VariableSize = Size;
519 }
520
521 return Status;
522 }
523
524 /**
525 Find the local token number according to system SKU ID.
526
527 @param LocalTokenNumber PCD token number
528 @param Size The size of PCD entry.
529 @param IsPeiDb If TRUE, the PCD entry is initialized in PEI phase.
530 If False, the PCD entry is initialized in DXE phase.
531
532 @return Token number according to system SKU ID.
533
534 **/
535 UINT32
536 GetSkuEnabledTokenNumber (
537 UINT32 LocalTokenNumber,
538 UINTN Size,
539 BOOLEAN IsPeiDb
540 )
541 {
542 SKU_HEAD *SkuHead;
543 SKU_ID *SkuIdTable;
544 INTN Index;
545 UINT8 *Value;
546 SKU_ID *PhaseSkuIdTable;
547 UINT8 *PcdDb;
548
549 ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);
550
551 PcdDb = IsPeiDb ? (UINT8 *) &mPcdDatabase->PeiDb : (UINT8 *) &mPcdDatabase->DxeDb;
552
553 SkuHead = (SKU_HEAD *) (PcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));
554 Value = (UINT8 *) (PcdDb + SkuHead->SkuDataStartOffset);
555
556 PhaseSkuIdTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.SkuIdTable :
557 mPcdDatabase->DxeDb.Init.SkuIdTable;
558
559 SkuIdTable = &PhaseSkuIdTable[SkuHead->SkuIdTableOffset];
560
561 //
562 // Find the current system's SKU ID entry in SKU ID table.
563 //
564 for (Index = 0; Index < SkuIdTable[0]; Index++) {
565 if (mPcdDatabase->PeiDb.Init.SystemSkuId == SkuIdTable[Index + 1]) {
566 break;
567 }
568 }
569 ASSERT (Index < SkuIdTable[0]);
570
571 switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {
572 case PCD_TYPE_VPD:
573 Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);
574 return (UINT32) ((Value - PcdDb) | PCD_TYPE_VPD);
575
576 case PCD_TYPE_HII:
577 Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);
578 return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII);
579
580 case PCD_TYPE_STRING:
581 Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);
582 return (UINT32) ((Value - PcdDb) | PCD_TYPE_STRING);
583
584 case PCD_TYPE_DATA:
585 Value += Size * Index;
586 return (UINT32) (Value - PcdDb);
587
588 default:
589 ASSERT (FALSE);
590 }
591
592 ASSERT (FALSE);
593
594 return 0;
595
596 }
597
598 /**
599 Invoke the callback function when dynamic PCD entry was set, if this PCD entry
600 has registered callback function.
601
602 @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx
603 type PCD.
604 @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type
605 PCD.
606 @param TokenNumber PCD token number generated by build tools.
607 @param Data Value want to be set for this PCD entry
608 @param Size The size of value
609
610 **/
611 VOID
612 InvokeCallbackOnSet (
613 UINT32 ExTokenNumber,
614 CONST EFI_GUID *Guid, OPTIONAL
615 UINTN TokenNumber,
616 VOID *Data,
617 UINTN Size
618 )
619 {
620 CALLBACK_FN_ENTRY *FnTableEntry;
621 LIST_ENTRY *ListHead;
622 LIST_ENTRY *ListNode;
623
624 //
625 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.
626 // We have to decrement TokenNumber by 1 to make it usable
627 // as the array index.
628 //
629 TokenNumber--;
630
631 ListHead = &mCallbackFnTable[TokenNumber];
632 ListNode = GetFirstNode (ListHead);
633
634 while (ListNode != ListHead) {
635 FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);
636
637 FnTableEntry->CallbackFn(Guid,
638 (Guid == NULL) ? TokenNumber : ExTokenNumber,
639 Data,
640 Size);
641
642 ListNode = GetNextNode (ListHead, ListNode);
643 }
644
645 return;
646 }
647
648
649 /**
650 Wrapper function for setting non-pointer type value for a PCD entry.
651
652 @param TokenNumber Pcd token number autogenerated by build tools.
653 @param Data Value want to be set for PCD entry
654 @param Size Size of value.
655
656 @return status of SetWorker.
657
658 **/
659 EFI_STATUS
660 SetValueWorker (
661 IN UINTN TokenNumber,
662 IN VOID *Data,
663 IN UINTN Size
664 )
665 {
666 return SetWorker (TokenNumber, Data, &Size, FALSE);
667 }
668
669
670 /**
671 Set value for an PCD entry
672
673 @param TokenNumber Pcd token number autogenerated by build tools.
674 @param Data Value want to be set for PCD entry
675 @param Size Size of value.
676 @param PtrType If TRUE, the type of PCD entry's value is Pointer.
677 If False, the type of PCD entry's value is not Pointer.
678
679 @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.
680 @retval EFI_INVALID_PARAMETER If Size can not be set to size table.
681 @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.
682 @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in
683 range of UINT8, UINT16, UINT32, UINT64
684 @retval EFI_NOT_FOUND Can not find the PCD type according to token number.
685 **/
686 EFI_STATUS
687 SetWorker (
688 IN UINTN TokenNumber,
689 IN VOID *Data,
690 IN OUT UINTN *Size,
691 IN BOOLEAN PtrType
692 )
693 {
694 UINT32 *LocalTokenNumberTable;
695 BOOLEAN IsPeiDb;
696 UINT32 LocalTokenNumber;
697 EFI_GUID *GuidTable;
698 UINT8 *StringTable;
699 EFI_GUID *Guid;
700 UINT16 *Name;
701 UINTN VariableOffset;
702 VOID *InternalData;
703 VARIABLE_HEAD *VariableHead;
704 UINTN Offset;
705 UINT8 *PcdDb;
706 EFI_STATUS Status;
707 UINTN MaxSize;
708 UINTN TmpTokenNumber;
709
710 //
711 // Aquire lock to prevent reentrance from TPL_CALLBACK level
712 //
713 EfiAcquireLock (&mPcdDatabaseLock);
714
715 //
716 // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.
717 // We have to decrement TokenNumber by 1 to make it usable
718 // as the array index.
719 //
720 TokenNumber--;
721
722 TmpTokenNumber = TokenNumber;
723
724 //
725 // EBC compiler is very choosy. It may report warning about comparison
726 // between UINTN and 0 . So we add 1 in each size of the
727 // comparison.
728 //
729 ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);
730
731 if ((!PtrType) && (*Size != DxePcdGetSize (TokenNumber + 1))) {
732 return EFI_INVALID_PARAMETER;
733 }
734
735 //
736 // EBC compiler is very choosy. It may report warning about comparison
737 // between UINTN and 0 . So we add 1 in each size of the
738 // comparison.
739 //
740 IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1) ? TRUE : FALSE);
741
742 LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable :
743 mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
744
745 //
746 // EBC compiler is very choosy. It may report warning about comparison
747 // between UINTN and 0 . So we add 1 in each size of the
748 // comparison.
749 //
750 if ((TokenNumber + 1 < PEI_NEX_TOKEN_NUMBER + 1) ||
751 (TokenNumber + 1 >= PEI_LOCAL_TOKEN_NUMBER + 1 || TokenNumber + 1 < (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER + 1))) {
752 InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);
753 }
754
755 TokenNumber = IsPeiDb ? TokenNumber
756 : TokenNumber - PEI_LOCAL_TOKEN_NUMBER;
757
758 LocalTokenNumber = LocalTokenNumberTable[TokenNumber];
759
760 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {
761 if (PtrType) {
762 GetPtrTypeSize (TmpTokenNumber, &MaxSize);
763 } else {
764 MaxSize = *Size;
765 }
766 LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb);
767 }
768
769 Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;
770
771 PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb);
772
773 if (IsPeiDb) {
774 StringTable = (UINT8 *) (&mPcdDatabase->PeiDb.Init.StringTable[0]);
775 } else {
776 StringTable = (UINT8 *) (&mPcdDatabase->DxeDb.Init.StringTable[0]);
777 }
778
779
780 InternalData = PcdDb + Offset;
781
782 switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {
783 case PCD_TYPE_VPD:
784 ASSERT (FALSE);
785 Status = EFI_INVALID_PARAMETER;
786 break;
787
788 case PCD_TYPE_STRING:
789 if (SetPtrTypeSize (TmpTokenNumber, Size)) {
790 CopyMem (StringTable + *((UINT16 *)InternalData), Data, *Size);
791 Status = EFI_SUCCESS;
792 } else {
793 Status = EFI_INVALID_PARAMETER;
794 }
795 break;
796
797 case PCD_TYPE_HII:
798 if (PtrType) {
799 if (!SetPtrTypeSize (TmpTokenNumber, Size)) {
800 Status = EFI_INVALID_PARAMETER;
801 break;
802 }
803 }
804
805 if (IsPeiDb) {
806 GuidTable = (EFI_GUID *) (&mPcdDatabase->PeiDb.Init.GuidTable[0]);
807 } else {
808 GuidTable = (EFI_GUID *) (&mPcdDatabase->DxeDb.Init.GuidTable[0]);
809 }
810
811 VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);
812
813 Guid = GuidTable + VariableHead->GuidTableIndex;
814 Name = (UINT16*) (StringTable + VariableHead->StringIndex);
815 VariableOffset = VariableHead->Offset;
816
817 Status = SetHiiVariable (Guid, Name, Data, *Size, VariableOffset);
818
819 if (EFI_NOT_FOUND == Status) {
820 CopyMem (PcdDb + VariableHead->DefaultValueOffset, Data, *Size);
821 Status = EFI_SUCCESS;
822 }
823 break;
824
825 case PCD_TYPE_DATA:
826 if (PtrType) {
827 if (SetPtrTypeSize (TmpTokenNumber, Size)) {
828 CopyMem (InternalData, Data, *Size);
829 Status = EFI_SUCCESS;
830 } else {
831 Status = EFI_INVALID_PARAMETER;
832 }
833 break;
834 }
835
836 Status = EFI_SUCCESS;
837 switch (*Size) {
838 case sizeof(UINT8):
839 *((UINT8 *) InternalData) = *((UINT8 *) Data);
840 break;
841
842 case sizeof(UINT16):
843 *((UINT16 *) InternalData) = *((UINT16 *) Data);
844 break;
845
846 case sizeof(UINT32):
847 *((UINT32 *) InternalData) = *((UINT32 *) Data);
848 break;
849
850 case sizeof(UINT64):
851 *((UINT64 *) InternalData) = *((UINT64 *) Data);
852 break;
853
854 default:
855 ASSERT (FALSE);
856 Status = EFI_NOT_FOUND;
857 break;
858 }
859 break;
860
861 default:
862 ASSERT (FALSE);
863 Status = EFI_NOT_FOUND;
864 break;
865 }
866
867 EfiReleaseLock (&mPcdDatabaseLock);
868
869 return Status;
870 }
871
872 /**
873 Wrapper function for get PCD value for dynamic-ex PCD.
874
875 @param Guid Token space guid for dynamic-ex PCD.
876 @param ExTokenNumber Token number for dynamic-ex PCD.
877 @param GetSize The size of dynamic-ex PCD value.
878
879 @return PCD entry in PCD database.
880
881 **/
882 VOID *
883 ExGetWorker (
884 IN CONST EFI_GUID *Guid,
885 IN UINTN ExTokenNumber,
886 IN UINTN GetSize
887 )
888 {
889 return GetWorker(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber), GetSize);
890 }
891
892 /**
893 Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.
894
895 @param ExTokenNumber Token number for dynamic-ex PCD.
896 @param Guid Token space guid for dynamic-ex PCD.
897 @param Data Value want to be set.
898 @param SetSize The size of value.
899
900 @return status of ExSetWorker().
901
902 **/
903 EFI_STATUS
904 ExSetValueWorker (
905 IN UINTN ExTokenNumber,
906 IN CONST EFI_GUID *Guid,
907 IN VOID *Data,
908 IN UINTN SetSize
909 )
910 {
911 return ExSetWorker (ExTokenNumber, Guid, Data, &SetSize, FALSE);
912 }
913
914 /**
915 Set value for a dynamic PCD entry.
916
917 This routine find the local token number according to dynamic-ex PCD's token
918 space guid and token number firstly, and invoke callback function if this PCD
919 entry registered callback function. Finally, invoken general SetWorker to set
920 PCD value.
921
922 @param ExTokenNumber Dynamic-ex PCD token number.
923 @param Guid Token space guid for dynamic-ex PCD.
924 @param Data PCD value want to be set
925 @param SetSize Size of value.
926 @param PtrType If TRUE, this PCD entry is pointer type.
927 If FALSE, this PCD entry is not pointer type.
928
929 @return status of SetWorker().
930
931 **/
932 EFI_STATUS
933 ExSetWorker (
934 IN UINTN ExTokenNumber,
935 IN CONST EFI_GUID *Guid,
936 IN VOID *Data,
937 IN OUT UINTN *SetSize,
938 IN BOOLEAN PtrType
939 )
940 {
941 UINTN TokenNumber;
942
943 TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber);
944
945 InvokeCallbackOnSet ((UINT32) ExTokenNumber, Guid, TokenNumber, Data, *SetSize);
946
947 return SetWorker (TokenNumber, Data, SetSize, PtrType);
948
949 }
950
951 /**
952 Set value for HII-type PCD.
953
954 A HII-type PCD's value is stored in a variable. Setting/Getting the value of
955 HII-type PCD is to visit this variable.
956
957 @param VariableGuid Guid of variable which stored value of a HII-type PCD.
958 @param VariableName Unicode name of variable which stored value of a HII-type PCD.
959 @param Data Value want to be set.
960 @param DataSize Size of value
961 @param Offset Value offset of HII-type PCD in variable.
962
963 @return status of GetVariable()/SetVariable().
964
965 **/
966 EFI_STATUS
967 SetHiiVariable (
968 IN EFI_GUID *VariableGuid,
969 IN UINT16 *VariableName,
970 IN CONST VOID *Data,
971 IN UINTN DataSize,
972 IN UINTN Offset
973 )
974 {
975 UINTN Size;
976 VOID *Buffer;
977 EFI_STATUS Status;
978 UINT32 Attribute;
979 UINTN SetSize;
980
981 Size = 0;
982 SetSize = 0;
983
984 //
985 // Try to get original variable size information.
986 //
987 Status = gRT->GetVariable (
988 (UINT16 *)VariableName,
989 VariableGuid,
990 NULL,
991 &Size,
992 NULL
993 );
994
995 if (Status == EFI_BUFFER_TOO_SMALL) {
996 //
997 // Patch new PCD's value to offset in given HII variable.
998 //
999 if (Size >= (DataSize + Offset)) {
1000 SetSize = Size;
1001 } else {
1002 SetSize = DataSize + Offset;
1003 }
1004 Buffer = AllocatePool (SetSize);
1005 ASSERT (Buffer != NULL);
1006
1007 Status = gRT->GetVariable (
1008 VariableName,
1009 VariableGuid,
1010 &Attribute,
1011 &Size,
1012 Buffer
1013 );
1014
1015 ASSERT_EFI_ERROR (Status);
1016
1017 CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);
1018
1019 Status = gRT->SetVariable (
1020 VariableName,
1021 VariableGuid,
1022 Attribute,
1023 SetSize,
1024 Buffer
1025 );
1026
1027 FreePool (Buffer);
1028 return Status;
1029 } else if (Status == EFI_NOT_FOUND) {
1030 //
1031 // If variable does not exist, a new variable need to be created.
1032 //
1033
1034 Size = Offset + DataSize;
1035
1036 Buffer = AllocateZeroPool (Size);
1037 ASSERT (Buffer != NULL);
1038
1039 CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);
1040
1041 Status = gRT->SetVariable (
1042 VariableName,
1043 VariableGuid,
1044 EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
1045 Size,
1046 Buffer
1047 );
1048
1049 FreePool (Buffer);
1050 return Status;
1051 }
1052
1053 //
1054 // If we drop to here, the value is failed to be written in to variable area
1055 // So, we will save the data in the PCD Database's volatile area.
1056 //
1057 return Status;
1058 }
1059
1060 /**
1061 Get local token number according to dynamic-ex PCD's {token space guid:token number}
1062
1063 A dynamic-ex type PCD, developer must provide pair of token space guid: token number
1064 in DEC file. PCD database maintain a mapping table that translate pair of {token
1065 space guid: token number} to local token number.
1066
1067 @param Guid Token space guid for dynamic-ex PCD entry.
1068 @param ExTokenNumber Dynamic-ex PCD token number.
1069
1070 @return local token number for dynamic-ex PCD.
1071
1072 **/
1073 UINTN
1074 GetExPcdTokenNumber (
1075 IN CONST EFI_GUID *Guid,
1076 IN UINT32 ExTokenNumber
1077 )
1078 {
1079 UINT32 Index;
1080 DYNAMICEX_MAPPING *ExMap;
1081 EFI_GUID *GuidTable;
1082 EFI_GUID *MatchGuid;
1083 UINTN MatchGuidIdx;
1084
1085 if (!PEI_DATABASE_EMPTY) {
1086 ExMap = mPcdDatabase->PeiDb.Init.ExMapTable;
1087 GuidTable = mPcdDatabase->PeiDb.Init.GuidTable;
1088
1089 MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->PeiDb.Init.GuidTable), Guid);
1090
1091 if (MatchGuid != NULL) {
1092
1093 MatchGuidIdx = MatchGuid - GuidTable;
1094
1095 for (Index = 0; Index < PEI_EXMAPPING_TABLE_SIZE; Index++) {
1096 if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&
1097 (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {
1098 return ExMap[Index].LocalTokenNumber;
1099 }
1100 }
1101 }
1102 }
1103
1104 ExMap = mPcdDatabase->DxeDb.Init.ExMapTable;
1105 GuidTable = mPcdDatabase->DxeDb.Init.GuidTable;
1106
1107 MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->DxeDb.Init.GuidTable), Guid);
1108 //
1109 // We need to ASSERT here. If GUID can't be found in GuidTable, this is a
1110 // error in the BUILD system.
1111 //
1112 ASSERT (MatchGuid != NULL);
1113
1114 MatchGuidIdx = MatchGuid - GuidTable;
1115
1116 for (Index = 0; Index < DXE_EXMAPPING_TABLE_SIZE; Index++) {
1117 if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&
1118 (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {
1119 return ExMap[Index].LocalTokenNumber;
1120 }
1121 }
1122
1123 ASSERT (FALSE);
1124
1125 return 0;
1126 }
1127
1128 /**
1129 Get SKU ID table from PCD database.
1130
1131 @param LocalTokenNumberTableIdx Index of local token number in token number table.
1132 @param IsPeiPcd If TRUE,
1133
1134 @return Pointer to SKU ID array table
1135
1136 **/
1137 SKU_ID *
1138 GetSkuIdArray (
1139 IN UINTN LocalTokenNumberTableIdx,
1140 IN BOOLEAN IsPeiPcd
1141 )
1142 {
1143 SKU_HEAD *SkuHead;
1144 UINTN LocalTokenNumber;
1145 UINT8 *Database;
1146
1147 if (IsPeiPcd) {
1148 LocalTokenNumber = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable[LocalTokenNumberTableIdx];
1149 Database = (UINT8 *) &mPcdDatabase->PeiDb;
1150 } else {
1151 LocalTokenNumber = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable[LocalTokenNumberTableIdx - PEI_LOCAL_TOKEN_NUMBER];
1152 Database = (UINT8 *) &mPcdDatabase->DxeDb;
1153 }
1154
1155 ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);
1156
1157 SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));
1158
1159 return (SKU_ID *) (Database + SkuHead->SkuIdTableOffset);
1160
1161 }
1162
1163 /**
1164 Wrapper function of getting index of PCD entry in size table.
1165
1166 @param LocalTokenNumberTableIdx Index of this PCD in local token number table.
1167 @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,
1168 If FALSE, the pcd entry is initialized in DXE phase.
1169
1170 @return index of PCD entry in size table.
1171 **/
1172 UINTN
1173 GetSizeTableIndex (
1174 IN UINTN LocalTokenNumberTableIdx,
1175 IN BOOLEAN IsPeiDb
1176 )
1177 {
1178 UINT32 *LocalTokenNumberTable;
1179 UINTN LocalTokenNumber;
1180 UINTN Index;
1181 UINTN SizeTableIdx;
1182 SKU_ID *SkuIdTable;
1183
1184 if (IsPeiDb) {
1185 LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable;
1186 } else {
1187 LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
1188 }
1189
1190 SizeTableIdx = 0;
1191
1192 for (Index = 0; Index < LocalTokenNumberTableIdx; Index ++) {
1193 LocalTokenNumber = LocalTokenNumberTable[Index];
1194
1195 if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {
1196 //
1197 // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type
1198 // PCD entry.
1199 //
1200 if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {
1201 //
1202 // We have only one entry for VPD enabled PCD entry:
1203 // 1) MAX Size.
1204 // We consider current size is equal to MAX size.
1205 //
1206 SizeTableIdx++;
1207 } else {
1208 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
1209 //
1210 // We have only two entry for Non-Sku enabled PCD entry:
1211 // 1) MAX SIZE
1212 // 2) Current Size
1213 //
1214 SizeTableIdx += 2;
1215 } else {
1216 //
1217 // We have these entry for SKU enabled PCD entry
1218 // 1) MAX SIZE
1219 // 2) Current Size for each SKU_ID (It is equal to MaxSku).
1220 //
1221 SkuIdTable = GetSkuIdArray (Index, IsPeiDb);
1222 SizeTableIdx += (UINTN)*SkuIdTable + 1;
1223 }
1224 }
1225 }
1226
1227 }
1228
1229 return SizeTableIdx;
1230 }
1231
1232 /**
1233 Get size of POINTER type PCD value.
1234
1235 @param LocalTokenNumberTableIdx Index of local token number in local token number table.
1236 @param MaxSize Maxmium size of POINTER type PCD value.
1237
1238 @return size of POINTER type PCD value.
1239
1240 **/
1241 UINTN
1242 GetPtrTypeSize (
1243 IN UINTN LocalTokenNumberTableIdx,
1244 OUT UINTN *MaxSize
1245 )
1246 {
1247 INTN SizeTableIdx;
1248 UINTN LocalTokenNumber;
1249 SKU_ID *SkuIdTable;
1250 SIZE_INFO *SizeTable;
1251 UINTN Index;
1252 BOOLEAN IsPeiDb;
1253 UINT32 *LocalTokenNumberTable;
1254
1255 // EBC compiler is very choosy. It may report warning about comparison
1256 // between UINTN and 0 . So we add 1 in each size of the
1257 // comparison.
1258 IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);
1259
1260
1261 if (IsPeiDb) {
1262 LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable;
1263 SizeTable = mPcdDatabase->PeiDb.Init.SizeTable;
1264 } else {
1265 LocalTokenNumberTableIdx -= PEI_LOCAL_TOKEN_NUMBER;
1266 LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
1267 SizeTable = mPcdDatabase->DxeDb.Init.SizeTable;
1268 }
1269
1270 LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];
1271
1272 ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);
1273
1274 SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);
1275
1276 *MaxSize = SizeTable[SizeTableIdx];
1277 //
1278 // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type
1279 // PCD entry.
1280 //
1281 if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {
1282 //
1283 // We have only one entry for VPD enabled PCD entry:
1284 // 1) MAX Size.
1285 // We consider current size is equal to MAX size.
1286 //
1287 return *MaxSize;
1288 } else {
1289 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
1290 //
1291 // We have only two entry for Non-Sku enabled PCD entry:
1292 // 1) MAX SIZE
1293 // 2) Current Size
1294 //
1295 return SizeTable[SizeTableIdx + 1];
1296 } else {
1297 //
1298 // We have these entry for SKU enabled PCD entry
1299 // 1) MAX SIZE
1300 // 2) Current Size for each SKU_ID (It is equal to MaxSku).
1301 //
1302 SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);
1303 for (Index = 0; Index < SkuIdTable[0]; Index++) {
1304 if (SkuIdTable[1 + Index] == mPcdDatabase->PeiDb.Init.SystemSkuId) {
1305 return SizeTable[SizeTableIdx + 1 + Index];
1306 }
1307 }
1308 return SizeTable[SizeTableIdx + 1];
1309 }
1310 }
1311 }
1312
1313 /**
1314 Set size of POINTER type PCD value. The size should not exceed the maximum size
1315 of this PCD value.
1316
1317 @param LocalTokenNumberTableIdx Index of local token number in local token number table.
1318 @param CurrentSize Size of POINTER type PCD value.
1319
1320 @retval TRUE Success to set size of PCD value.
1321 @retval FALSE Fail to set size of PCD value.
1322 **/
1323 BOOLEAN
1324 SetPtrTypeSize (
1325 IN UINTN LocalTokenNumberTableIdx,
1326 IN OUT UINTN *CurrentSize
1327 )
1328 {
1329 INTN SizeTableIdx;
1330 UINTN LocalTokenNumber;
1331 SKU_ID *SkuIdTable;
1332 SIZE_INFO *SizeTable;
1333 UINTN Index;
1334 UINTN MaxSize;
1335 BOOLEAN IsPeiDb;
1336 UINT32 *LocalTokenNumberTable;
1337
1338 //
1339 // EBC compiler is very choosy. It may report warning about comparison
1340 // between UINTN and 0 . So we add 1 in each size of the
1341 // comparison.
1342 //
1343 IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);
1344
1345 if (IsPeiDb) {
1346 LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable;
1347 SizeTable = mPcdDatabase->PeiDb.Init.SizeTable;
1348 } else {
1349 LocalTokenNumberTableIdx -= PEI_LOCAL_TOKEN_NUMBER;
1350 LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;
1351 SizeTable = mPcdDatabase->DxeDb.Init.SizeTable;
1352 }
1353
1354 LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];
1355
1356 ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);
1357
1358 SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);
1359
1360 MaxSize = SizeTable[SizeTableIdx];
1361 //
1362 // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type
1363 // PCD entry.
1364 //
1365 if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {
1366 //
1367 // We shouldn't come here as we don't support SET for VPD
1368 //
1369 ASSERT (FALSE);
1370 return FALSE;
1371 } else {
1372 if ((*CurrentSize > MaxSize) ||
1373 (*CurrentSize == MAX_ADDRESS)) {
1374 *CurrentSize = MaxSize;
1375 return FALSE;
1376 }
1377
1378 if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
1379 //
1380 // We have only two entry for Non-Sku enabled PCD entry:
1381 // 1) MAX SIZE
1382 // 2) Current Size
1383 //
1384 SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
1385 return TRUE;
1386 } else {
1387 //
1388 // We have these entry for SKU enabled PCD entry
1389 // 1) MAX SIZE
1390 // 2) Current Size for each SKU_ID (It is equal to MaxSku).
1391 //
1392 SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);
1393 for (Index = 0; Index < SkuIdTable[0]; Index++) {
1394 if (SkuIdTable[1 + Index] == mPcdDatabase->PeiDb.Init.SystemSkuId) {
1395 SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize;
1396 return TRUE;
1397 }
1398 }
1399 SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
1400 return TRUE;
1401 }
1402 }
1403 }
EFI Development Kit II mirror for PVE