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1 | /** @file\r | |
2 | Help functions used by PCD DXE driver.\r | |
3 | \r | |
4 | Copyright (c) 2014, Hewlett-Packard Development Company, L.P.<BR>\r | |
5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
6 | (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r | |
7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
8 | \r | |
9 | **/\r | |
10 | \r | |
11 | #include "Service.h"\r | |
12 | #include <Library/DxeServicesLib.h>\r | |
13 | \r | |
14 | PCD_DATABASE mPcdDatabase;\r | |
15 | \r | |
16 | UINT32 mPcdTotalTokenCount;\r | |
17 | UINT32 mPeiLocalTokenCount;\r | |
18 | UINT32 mDxeLocalTokenCount;\r | |
19 | UINT32 mPeiNexTokenCount;\r | |
20 | UINT32 mDxeNexTokenCount;\r | |
21 | UINT32 mPeiExMapppingTableSize;\r | |
22 | UINT32 mDxeExMapppingTableSize;\r | |
23 | UINT32 mPeiGuidTableSize;\r | |
24 | UINT32 mDxeGuidTableSize;\r | |
25 | \r | |
26 | BOOLEAN mPeiExMapTableEmpty;\r | |
27 | BOOLEAN mDxeExMapTableEmpty;\r | |
28 | BOOLEAN mPeiDatabaseEmpty;\r | |
29 | \r | |
30 | LIST_ENTRY *mCallbackFnTable;\r | |
31 | EFI_GUID **TmpTokenSpaceBuffer;\r | |
32 | UINTN TmpTokenSpaceBufferCount;\r | |
33 | \r | |
34 | UINTN mPeiPcdDbSize = 0;\r | |
35 | PEI_PCD_DATABASE *mPeiPcdDbBinary = NULL;\r | |
36 | UINTN mDxePcdDbSize = 0;\r | |
37 | DXE_PCD_DATABASE *mDxePcdDbBinary = NULL;\r | |
38 | \r | |
39 | /**\r | |
40 | Get Local Token Number by Token Number.\r | |
41 | \r | |
42 | @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
43 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
44 | @param[in] TokenNumber The PCD token number.\r | |
45 | \r | |
46 | @return Local Token Number.\r | |
47 | **/\r | |
48 | UINT32\r | |
49 | GetLocalTokenNumber (\r | |
50 | IN BOOLEAN IsPeiDb,\r | |
51 | IN UINTN TokenNumber\r | |
52 | )\r | |
53 | {\r | |
54 | UINT32 *LocalTokenNumberTable;\r | |
55 | \r | |
56 | //\r | |
57 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
58 | // We have to decrement TokenNumber by 1 to make it usable\r | |
59 | // as the array index.\r | |
60 | //\r | |
61 | TokenNumber--;\r | |
62 | \r | |
63 | LocalTokenNumberTable = IsPeiDb ? (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset) :\r | |
64 | (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
65 | TokenNumber = IsPeiDb ? TokenNumber : TokenNumber - mPeiLocalTokenCount;\r | |
66 | \r | |
67 | return LocalTokenNumberTable[TokenNumber];\r | |
68 | }\r | |
69 | \r | |
70 | /**\r | |
71 | Get PCD type by Local Token Number.\r | |
72 | \r | |
73 | @param[in] LocalTokenNumber The PCD local token number.\r | |
74 | \r | |
75 | @return PCD type.\r | |
76 | **/\r | |
77 | EFI_PCD_TYPE\r | |
78 | GetPcdType (\r | |
79 | IN UINT32 LocalTokenNumber\r | |
80 | )\r | |
81 | {\r | |
82 | switch (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) {\r | |
83 | case PCD_DATUM_TYPE_POINTER:\r | |
84 | return EFI_PCD_TYPE_PTR;\r | |
85 | case PCD_DATUM_TYPE_UINT8:\r | |
86 | if ((LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) == PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r | |
87 | return EFI_PCD_TYPE_BOOL;\r | |
88 | } else {\r | |
89 | return EFI_PCD_TYPE_8;\r | |
90 | }\r | |
91 | case PCD_DATUM_TYPE_UINT16:\r | |
92 | return EFI_PCD_TYPE_16;\r | |
93 | case PCD_DATUM_TYPE_UINT32:\r | |
94 | return EFI_PCD_TYPE_32;\r | |
95 | case PCD_DATUM_TYPE_UINT64:\r | |
96 | return EFI_PCD_TYPE_64;\r | |
97 | default:\r | |
98 | ASSERT (FALSE);\r | |
99 | return EFI_PCD_TYPE_8;\r | |
100 | }\r | |
101 | }\r | |
102 | \r | |
103 | /**\r | |
104 | Get PCD name.\r | |
105 | \r | |
106 | @param[in] OnlyTokenSpaceName If TRUE, only need to get the TokenSpaceCName.\r | |
107 | If FALSE, need to get the full PCD name.\r | |
108 | @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
109 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
110 | @param[in] TokenNumber The PCD token number.\r | |
111 | \r | |
112 | @return The TokenSpaceCName or full PCD name.\r | |
113 | **/\r | |
114 | CHAR8 *\r | |
115 | GetPcdName (\r | |
116 | IN BOOLEAN OnlyTokenSpaceName,\r | |
117 | IN BOOLEAN IsPeiDb,\r | |
118 | IN UINTN TokenNumber\r | |
119 | )\r | |
120 | {\r | |
121 | PCD_DATABASE_INIT *Database;\r | |
122 | UINT8 *StringTable;\r | |
123 | UINTN NameSize;\r | |
124 | PCD_NAME_INDEX *PcdNameIndex;\r | |
125 | CHAR8 *TokenSpaceName;\r | |
126 | CHAR8 *PcdName;\r | |
127 | CHAR8 *Name;\r | |
128 | \r | |
129 | //\r | |
130 | // Return NULL when PCD name table is absent.\r | |
131 | //\r | |
132 | if (IsPeiDb) {\r | |
133 | if (mPcdDatabase.PeiDb->PcdNameTableOffset == 0) {\r | |
134 | return NULL;\r | |
135 | }\r | |
136 | } else {\r | |
137 | if (mPcdDatabase.DxeDb->PcdNameTableOffset == 0) {\r | |
138 | return NULL;\r | |
139 | }\r | |
140 | }\r | |
141 | \r | |
142 | //\r | |
143 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
144 | // We have to decrement TokenNumber by 1 to make it usable\r | |
145 | // as the array index.\r | |
146 | //\r | |
147 | TokenNumber--;\r | |
148 | \r | |
149 | Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r | |
150 | TokenNumber = IsPeiDb ? TokenNumber : TokenNumber - mPeiLocalTokenCount;\r | |
151 | \r | |
152 | StringTable = (UINT8 *) Database + Database->StringTableOffset;\r | |
153 | \r | |
154 | //\r | |
155 | // Get the PCD name index.\r | |
156 | //\r | |
157 | PcdNameIndex = (PCD_NAME_INDEX *)((UINT8 *) Database + Database->PcdNameTableOffset) + TokenNumber;\r | |
158 | TokenSpaceName = (CHAR8 *)&StringTable[PcdNameIndex->TokenSpaceCNameIndex];\r | |
159 | PcdName = (CHAR8 *)&StringTable[PcdNameIndex->PcdCNameIndex];\r | |
160 | \r | |
161 | if (OnlyTokenSpaceName) {\r | |
162 | //\r | |
163 | // Only need to get the TokenSpaceCName.\r | |
164 | //\r | |
165 | Name = AllocateCopyPool (AsciiStrSize (TokenSpaceName), TokenSpaceName);\r | |
166 | } else {\r | |
167 | //\r | |
168 | // Need to get the full PCD name.\r | |
169 | //\r | |
170 | NameSize = AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName);\r | |
171 | Name = AllocateZeroPool (NameSize);\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 | AsciiStrCatS (Name, NameSize, TokenSpaceName);\r | |
177 | Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r | |
178 | AsciiStrCatS (Name, NameSize, 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 | |
200 | EFI_STATUS\r | |
201 | ExGetPcdInfo (\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 | |
274 | EFI_STATUS\r | |
275 | DxeGetPcdInfo (\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 | |
361 | VOID *\r | |
362 | GetWorker (\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 | ASSERT (mVpdBaseAddress != 0);\r | |
433 | RetPtr = (VOID *) (mVpdBaseAddress + VpdHead->Offset);\r | |
434 | \r | |
435 | break;\r | |
436 | \r | |
437 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r | |
438 | case PCD_TYPE_HII:\r | |
439 | if (IsPeiDb) {\r | |
440 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r | |
441 | } else {\r | |
442 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r | |
443 | }\r | |
444 | \r | |
445 | VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r | |
446 | Guid = GuidTable + VariableHead->GuidTableIndex;\r | |
447 | Name = (UINT16*)(StringTable + VariableHead->StringIndex);\r | |
448 | \r | |
449 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r | |
450 | //\r | |
451 | // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of\r | |
452 | // string array in string table.\r | |
453 | //\r | |
454 | StringTableIdx = *(STRING_HEAD*)((UINT8 *) PcdDb + VariableHead->DefaultValueOffset);\r | |
455 | VaraiableDefaultBuffer = (UINT8 *) (StringTable + StringTableIdx);\r | |
456 | } else {\r | |
457 | VaraiableDefaultBuffer = (UINT8 *) PcdDb + VariableHead->DefaultValueOffset;\r | |
458 | }\r | |
459 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
460 | if (Status == EFI_SUCCESS) {\r | |
461 | if (DataSize >= (VariableHead->Offset + GetSize)) {\r | |
462 | if (GetSize == 0) {\r | |
463 | //\r | |
464 | // It is a pointer type. So get the MaxSize reserved for\r | |
465 | // this PCD entry.\r | |
466 | //\r | |
467 | GetPtrTypeSize (TmpTokenNumber, &GetSize);\r | |
468 | if (GetSize > (DataSize - VariableHead->Offset)) {\r | |
469 | //\r | |
470 | // Use actual valid size.\r | |
471 | //\r | |
472 | GetSize = DataSize - VariableHead->Offset;\r | |
473 | }\r | |
474 | }\r | |
475 | //\r | |
476 | // If the operation is successful, we copy the data\r | |
477 | // to the default value buffer in the PCD Database.\r | |
478 | // So that we can free the Data allocated in GetHiiVariable.\r | |
479 | //\r | |
480 | CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize);\r | |
481 | }\r | |
482 | FreePool (Data);\r | |
483 | }\r | |
484 | RetPtr = (VOID *) VaraiableDefaultBuffer;\r | |
485 | break;\r | |
486 | \r | |
487 | case PCD_TYPE_STRING:\r | |
488 | StringTableIdx = *(STRING_HEAD*)((UINT8 *) PcdDb + Offset);\r | |
489 | RetPtr = (VOID *) (StringTable + StringTableIdx);\r | |
490 | break;\r | |
491 | \r | |
492 | case PCD_TYPE_DATA:\r | |
493 | RetPtr = (VOID *) ((UINT8 *) PcdDb + Offset);\r | |
494 | break;\r | |
495 | \r | |
496 | default:\r | |
497 | ASSERT (FALSE);\r | |
498 | break;\r | |
499 | \r | |
500 | }\r | |
501 | \r | |
502 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
503 | \r | |
504 | return RetPtr;\r | |
505 | \r | |
506 | }\r | |
507 | \r | |
508 | /**\r | |
509 | Register the callback function for a PCD entry.\r | |
510 | \r | |
511 | This routine will register a callback function to a PCD entry by given token number\r | |
512 | and token space guid.\r | |
513 | \r | |
514 | @param TokenNumber PCD token's number, it is autogened by build tools.\r | |
515 | @param Guid PCD token space's guid,\r | |
516 | if not NULL, this PCD is dynamicEx type PCD.\r | |
517 | @param CallBackFunction Callback function pointer\r | |
518 | \r | |
519 | @return EFI_SUCCESS Always success for registering callback function.\r | |
520 | \r | |
521 | **/\r | |
522 | EFI_STATUS\r | |
523 | DxeRegisterCallBackWorker (\r | |
524 | IN UINTN TokenNumber,\r | |
525 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
526 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r | |
527 | )\r | |
528 | {\r | |
529 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
530 | LIST_ENTRY *ListHead;\r | |
531 | LIST_ENTRY *ListNode;\r | |
532 | \r | |
533 | if (Guid != NULL) {\r | |
534 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r | |
535 | }\r | |
536 | \r | |
537 | //\r | |
538 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
539 | // We have to decrement TokenNumber by 1 to make it usable\r | |
540 | // as the array index of mCallbackFnTable[].\r | |
541 | //\r | |
542 | ListHead = &mCallbackFnTable[TokenNumber - 1];\r | |
543 | ListNode = GetFirstNode (ListHead);\r | |
544 | \r | |
545 | while (ListNode != ListHead) {\r | |
546 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
547 | \r | |
548 | if (FnTableEntry->CallbackFn == CallBackFunction) {\r | |
549 | //\r | |
550 | // We only allow a Callback function to be register once\r | |
551 | // for a TokenNumber. So just return EFI_SUCCESS\r | |
552 | //\r | |
553 | return EFI_SUCCESS;\r | |
554 | }\r | |
555 | ListNode = GetNextNode (ListHead, ListNode);\r | |
556 | }\r | |
557 | \r | |
558 | FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY));\r | |
559 | ASSERT (FnTableEntry != NULL);\r | |
560 | \r | |
561 | FnTableEntry->CallbackFn = CallBackFunction;\r | |
562 | InsertTailList (ListHead, &FnTableEntry->Node);\r | |
563 | \r | |
564 | return EFI_SUCCESS;\r | |
565 | }\r | |
566 | \r | |
567 | /**\r | |
568 | UnRegister the callback function for a PCD entry.\r | |
569 | \r | |
570 | This routine will unregister a callback function to a PCD entry by given token number\r | |
571 | and token space guid.\r | |
572 | \r | |
573 | @param TokenNumber PCD token's number, it is autogened by build tools.\r | |
574 | @param Guid PCD token space's guid.\r | |
575 | if not NULL, this PCD is dynamicEx type PCD.\r | |
576 | @param CallBackFunction Callback function pointer\r | |
577 | \r | |
578 | @retval EFI_SUCCESS Callback function is success to be unregister.\r | |
579 | @retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number.\r | |
580 | **/\r | |
581 | EFI_STATUS\r | |
582 | DxeUnRegisterCallBackWorker (\r | |
583 | IN UINTN TokenNumber,\r | |
584 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
585 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r | |
586 | )\r | |
587 | {\r | |
588 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
589 | LIST_ENTRY *ListHead;\r | |
590 | LIST_ENTRY *ListNode;\r | |
591 | \r | |
592 | if (Guid != NULL) {\r | |
593 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r | |
594 | }\r | |
595 | \r | |
596 | //\r | |
597 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
598 | // We have to decrement TokenNumber by 1 to make it usable\r | |
599 | // as the array index of mCallbackFnTable[].\r | |
600 | //\r | |
601 | ListHead = &mCallbackFnTable[TokenNumber - 1];\r | |
602 | ListNode = GetFirstNode (ListHead);\r | |
603 | \r | |
604 | while (ListNode != ListHead) {\r | |
605 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
606 | \r | |
607 | if (FnTableEntry->CallbackFn == CallBackFunction) {\r | |
608 | //\r | |
609 | // We only allow a Callback function to be register once\r | |
610 | // for a TokenNumber. So we can safely remove the Node from\r | |
611 | // the Link List and return EFI_SUCCESS.\r | |
612 | //\r | |
613 | RemoveEntryList (ListNode);\r | |
614 | FreePool (FnTableEntry);\r | |
615 | \r | |
616 | return EFI_SUCCESS;\r | |
617 | }\r | |
618 | ListNode = GetNextNode (ListHead, ListNode);\r | |
619 | }\r | |
620 | \r | |
621 | return EFI_INVALID_PARAMETER;\r | |
622 | }\r | |
623 | \r | |
624 | /**\r | |
625 | Get next token number in given token space.\r | |
626 | \r | |
627 | This routine is used for dynamicEx type PCD. It will firstly scan token space\r | |
628 | table to get token space according to given token space guid. Then scan given\r | |
629 | token number in found token space, if found, then return next token number in\r | |
630 | this token space.\r | |
631 | \r | |
632 | @param Guid Token space guid. Next token number will be scaned in\r | |
633 | this token space.\r | |
634 | @param TokenNumber Token number.\r | |
635 | If PCD_INVALID_TOKEN_NUMBER, return first token number in\r | |
636 | token space table.\r | |
637 | If not PCD_INVALID_TOKEN_NUMBER, return next token number\r | |
638 | in token space table.\r | |
639 | @param GuidTable Token space guid table. It will be used for scan token space\r | |
640 | by given token space guid.\r | |
641 | @param SizeOfGuidTable The size of guid table.\r | |
642 | @param ExMapTable DynamicEx token number mapping table.\r | |
643 | @param SizeOfExMapTable The size of dynamicEx token number mapping table.\r | |
644 | \r | |
645 | @retval EFI_NOT_FOUND Can not given token space or token number.\r | |
646 | @retval EFI_SUCCESS Success to get next token number.\r | |
647 | \r | |
648 | **/\r | |
649 | EFI_STATUS\r | |
650 | ExGetNextTokeNumber (\r | |
651 | IN CONST EFI_GUID *Guid,\r | |
652 | IN OUT UINTN *TokenNumber,\r | |
653 | IN EFI_GUID *GuidTable,\r | |
654 | IN UINTN SizeOfGuidTable,\r | |
655 | IN DYNAMICEX_MAPPING *ExMapTable,\r | |
656 | IN UINTN SizeOfExMapTable\r | |
657 | )\r | |
658 | {\r | |
659 | EFI_GUID *MatchGuid;\r | |
660 | UINTN Index;\r | |
661 | UINTN GuidTableIdx;\r | |
662 | BOOLEAN Found;\r | |
663 | UINTN ExMapTableCount;\r | |
664 | \r | |
665 | //\r | |
666 | // Scan token space guid\r | |
667 | //\r | |
668 | MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid);\r | |
669 | if (MatchGuid == NULL) {\r | |
670 | return EFI_NOT_FOUND;\r | |
671 | }\r | |
672 | \r | |
673 | //\r | |
674 | // Find the token space table in dynamicEx mapping table.\r | |
675 | //\r | |
676 | Found = FALSE;\r | |
677 | GuidTableIdx = MatchGuid - GuidTable;\r | |
678 | ExMapTableCount = SizeOfExMapTable / sizeof(ExMapTable[0]);\r | |
679 | for (Index = 0; Index < ExMapTableCount; Index++) {\r | |
680 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
681 | Found = TRUE;\r | |
682 | break;\r | |
683 | }\r | |
684 | }\r | |
685 | \r | |
686 | if (Found) {\r | |
687 | //\r | |
688 | // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first\r | |
689 | // token number in found token space.\r | |
690 | //\r | |
691 | if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
692 | *TokenNumber = ExMapTable[Index].ExTokenNumber;\r | |
693 | return EFI_SUCCESS;\r | |
694 | }\r | |
695 | \r | |
696 | for ( ; Index < ExMapTableCount; Index++) {\r | |
697 | if ((ExMapTable[Index].ExTokenNumber == *TokenNumber) && (ExMapTable[Index].ExGuidIndex == GuidTableIdx)) {\r | |
698 | break;\r | |
699 | }\r | |
700 | }\r | |
701 | \r | |
702 | while (Index < ExMapTableCount) {\r | |
703 | Index++;\r | |
704 | if (Index == ExMapTableCount) {\r | |
705 | //\r | |
706 | // Exceed the length of ExMap Table\r | |
707 | //\r | |
708 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r | |
709 | return EFI_NOT_FOUND;\r | |
710 | } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
711 | //\r | |
712 | // Found the next match\r | |
713 | //\r | |
714 | *TokenNumber = ExMapTable[Index].ExTokenNumber;\r | |
715 | return EFI_SUCCESS;\r | |
716 | }\r | |
717 | }\r | |
718 | }\r | |
719 | \r | |
720 | return EFI_NOT_FOUND;\r | |
721 | }\r | |
722 | \r | |
723 | /**\r | |
724 | Find the PCD database.\r | |
725 | \r | |
726 | @retval The base address of external PCD database binary.\r | |
727 | @retval NULL Return NULL if not find.\r | |
728 | **/\r | |
729 | DXE_PCD_DATABASE *\r | |
730 | LocateExPcdBinary (\r | |
731 | VOID\r | |
732 | )\r | |
733 | {\r | |
734 | EFI_STATUS Status;\r | |
735 | \r | |
736 | //\r | |
737 | // Search the External Pcd database from one section of current FFS,\r | |
738 | // and read it to memory\r | |
739 | //\r | |
740 | Status = GetSectionFromFfs (\r | |
741 | EFI_SECTION_RAW,\r | |
742 | 0,\r | |
743 | (VOID **) &mDxePcdDbBinary,\r | |
744 | &mDxePcdDbSize\r | |
745 | );\r | |
746 | ASSERT_EFI_ERROR (Status);\r | |
747 | \r | |
748 | //\r | |
749 | // Check the first bytes (Header Signature Guid) and build version.\r | |
750 | //\r | |
751 | if (!CompareGuid ((VOID *)mDxePcdDbBinary, &gPcdDataBaseSignatureGuid) ||\r | |
752 | (mDxePcdDbBinary->BuildVersion != PCD_SERVICE_DXE_VERSION)) {\r | |
753 | ASSERT (FALSE);\r | |
754 | }\r | |
755 | \r | |
756 | return mDxePcdDbBinary;\r | |
757 | }\r | |
758 | \r | |
759 | /**\r | |
760 | Update PCD database base on current SkuId\r | |
761 | \r | |
762 | @param SkuId Current SkuId\r | |
763 | @param IsPeiDb Whether to update PEI PCD database.\r | |
764 | \r | |
765 | @retval EFI_SUCCESS Update PCD database successfully.\r | |
766 | @retval EFI_NOT_FOUND Not found PCD database for current SkuId.\r | |
767 | **/\r | |
768 | EFI_STATUS\r | |
769 | UpdatePcdDatabase (\r | |
770 | IN SKU_ID SkuId,\r | |
771 | IN BOOLEAN IsPeiDb\r | |
772 | )\r | |
773 | {\r | |
774 | UINTN Index;\r | |
775 | PCD_DATABASE_SKU_DELTA *SkuDelta;\r | |
776 | PCD_DATA_DELTA *SkuDeltaData;\r | |
777 | \r | |
778 | if (IsPeiDb && mPeiPcdDbBinary != NULL) {\r | |
779 | //\r | |
780 | // Find the delta data for PEI DB\r | |
781 | //\r | |
782 | Index = (mPcdDatabase.PeiDb->Length + 7) & (~7);\r | |
783 | SkuDelta = NULL;\r | |
784 | while (Index < mPeiPcdDbSize) {\r | |
785 | SkuDelta = (PCD_DATABASE_SKU_DELTA *) ((UINT8 *) mPeiPcdDbBinary + Index);\r | |
786 | if (SkuDelta->SkuId == SkuId && SkuDelta->SkuIdCompared == 0) {\r | |
787 | break;\r | |
788 | }\r | |
789 | Index = (Index + SkuDelta->Length + 7) & (~7);\r | |
790 | }\r | |
791 | \r | |
792 | //\r | |
793 | // Patch the delta data into current PCD database\r | |
794 | //\r | |
795 | if (Index < mPeiPcdDbSize && SkuDelta != NULL) {\r | |
796 | SkuDeltaData = (PCD_DATA_DELTA *) (SkuDelta + 1);\r | |
797 | while ((UINT8 *) SkuDeltaData < (UINT8 *) SkuDelta + SkuDelta->Length) {\r | |
798 | *((UINT8 *) mPcdDatabase.PeiDb + SkuDeltaData->Offset) = (UINT8) SkuDeltaData->Value;\r | |
799 | SkuDeltaData ++;\r | |
800 | }\r | |
801 | } else {\r | |
802 | return EFI_NOT_FOUND;\r | |
803 | }\r | |
804 | }\r | |
805 | \r | |
806 | //\r | |
807 | // Find the delta data for DXE DB\r | |
808 | //\r | |
809 | Index = (mPcdDatabase.DxeDb->Length + 7) & (~7);\r | |
810 | SkuDelta = NULL;\r | |
811 | while (Index < mDxePcdDbSize) {\r | |
812 | SkuDelta = (PCD_DATABASE_SKU_DELTA *) ((UINT8 *) mDxePcdDbBinary + Index);\r | |
813 | if (SkuDelta->SkuId == SkuId && SkuDelta->SkuIdCompared == 0) {\r | |
814 | break;\r | |
815 | }\r | |
816 | Index = (Index + SkuDelta->Length + 7) & (~7);\r | |
817 | }\r | |
818 | \r | |
819 | //\r | |
820 | // Patch the delta data into current PCD database\r | |
821 | //\r | |
822 | if (Index < mDxePcdDbSize && SkuDelta != NULL) {\r | |
823 | SkuDeltaData = (PCD_DATA_DELTA *) (SkuDelta + 1);\r | |
824 | while ((UINT8 *) SkuDeltaData < (UINT8 *) SkuDelta + SkuDelta->Length) {\r | |
825 | *((UINT8 *) mPcdDatabase.DxeDb + SkuDeltaData->Offset) = (UINT8) SkuDeltaData->Value;\r | |
826 | SkuDeltaData ++;\r | |
827 | }\r | |
828 | return EFI_SUCCESS;\r | |
829 | }\r | |
830 | \r | |
831 | return EFI_NOT_FOUND;\r | |
832 | }\r | |
833 | \r | |
834 | /**\r | |
835 | Initialize the PCD database in DXE phase.\r | |
836 | \r | |
837 | PCD database in DXE phase also contains PCD database in PEI phase which is copied\r | |
838 | from GUID Hob.\r | |
839 | \r | |
840 | **/\r | |
841 | VOID\r | |
842 | BuildPcdDxeDataBase (\r | |
843 | VOID\r | |
844 | )\r | |
845 | {\r | |
846 | PEI_PCD_DATABASE *PeiDatabase;\r | |
847 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
848 | UINTN Index;\r | |
849 | UINT32 PcdDxeDbLen;\r | |
850 | VOID *PcdDxeDb;\r | |
851 | EFI_STATUS Status;\r | |
852 | \r | |
853 | //\r | |
854 | // Assign PCD Entries with default value to PCD DATABASE\r | |
855 | //\r | |
856 | mPcdDatabase.DxeDb = LocateExPcdBinary ();\r | |
857 | ASSERT(mPcdDatabase.DxeDb != NULL);\r | |
858 | PcdDxeDbLen = mPcdDatabase.DxeDb->Length + mPcdDatabase.DxeDb->UninitDataBaseSize;\r | |
859 | PcdDxeDb = AllocateZeroPool (PcdDxeDbLen);\r | |
860 | ASSERT (PcdDxeDb != NULL);\r | |
861 | CopyMem (PcdDxeDb, mPcdDatabase.DxeDb, mPcdDatabase.DxeDb->Length);\r | |
862 | mPcdDatabase.DxeDb = PcdDxeDb;\r | |
863 | \r | |
864 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
865 | if (GuidHob != NULL) {\r | |
866 | \r | |
867 | //\r | |
868 | // If no PEIMs use dynamic Pcd Entry, the Pcd Service PEIM\r | |
869 | // should not be included at all. So the GuidHob could\r | |
870 | // be NULL. If it is NULL, we just copy over the DXE Default\r | |
871 | // Value to PCD Database.\r | |
872 | //\r | |
873 | PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
874 | \r | |
875 | //\r | |
876 | // Get next one that stores full PEI data\r | |
877 | //\r | |
878 | GuidHob = GetNextGuidHob (&gPcdDataBaseHobGuid, GET_NEXT_HOB (GuidHob));\r | |
879 | if (GuidHob != NULL) {\r | |
880 | mPeiPcdDbBinary = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
881 | mPeiPcdDbSize = (UINTN) GET_GUID_HOB_DATA_SIZE (GuidHob);\r | |
882 | }\r | |
883 | \r | |
884 | //\r | |
885 | // Assign PCD Entries refereneced in PEI phase to PCD DATABASE\r | |
886 | //\r | |
887 | mPcdDatabase.PeiDb = PeiDatabase;\r | |
888 | //\r | |
889 | // Inherit the SystemSkuId from PEI phase.\r | |
890 | //\r | |
891 | if (mPcdDatabase.PeiDb->SystemSkuId != 0) {\r | |
892 | Status = UpdatePcdDatabase (mPcdDatabase.PeiDb->SystemSkuId, FALSE);\r | |
893 | ASSERT_EFI_ERROR (Status);\r | |
894 | }\r | |
895 | mPcdDatabase.DxeDb->SystemSkuId = mPcdDatabase.PeiDb->SystemSkuId;\r | |
896 | } else {\r | |
897 | mPcdDatabase.PeiDb = AllocateZeroPool (sizeof (PEI_PCD_DATABASE));\r | |
898 | ASSERT(mPcdDatabase.PeiDb != NULL);\r | |
899 | }\r | |
900 | \r | |
901 | //\r | |
902 | // Initialized the external PCD database local variables\r | |
903 | //\r | |
904 | mPeiLocalTokenCount = mPcdDatabase.PeiDb->LocalTokenCount;\r | |
905 | mDxeLocalTokenCount = mPcdDatabase.DxeDb->LocalTokenCount;\r | |
906 | \r | |
907 | mPeiExMapppingTableSize = mPcdDatabase.PeiDb->ExTokenCount * sizeof (DYNAMICEX_MAPPING);\r | |
908 | mDxeExMapppingTableSize = mPcdDatabase.DxeDb->ExTokenCount * sizeof (DYNAMICEX_MAPPING);\r | |
909 | mPeiGuidTableSize = mPcdDatabase.PeiDb->GuidTableCount * sizeof(GUID);\r | |
910 | mDxeGuidTableSize = mPcdDatabase.DxeDb->GuidTableCount * sizeof (GUID);\r | |
911 | \r | |
912 | mPcdTotalTokenCount = mPeiLocalTokenCount + mDxeLocalTokenCount;\r | |
913 | mPeiNexTokenCount = mPeiLocalTokenCount - mPcdDatabase.PeiDb->ExTokenCount;\r | |
914 | mDxeNexTokenCount = mDxeLocalTokenCount - mPcdDatabase.DxeDb->ExTokenCount;\r | |
915 | \r | |
916 | mPeiExMapTableEmpty = (mPcdDatabase.PeiDb->ExTokenCount == 0) ? TRUE : FALSE;\r | |
917 | mDxeExMapTableEmpty = (mPcdDatabase.DxeDb->ExTokenCount == 0) ? TRUE : FALSE;\r | |
918 | mPeiDatabaseEmpty = (mPeiLocalTokenCount == 0) ? TRUE : FALSE;\r | |
919 | \r | |
920 | TmpTokenSpaceBufferCount = mPcdDatabase.PeiDb->ExTokenCount + mPcdDatabase.DxeDb->ExTokenCount;\r | |
921 | TmpTokenSpaceBuffer = (EFI_GUID **)AllocateZeroPool(TmpTokenSpaceBufferCount * sizeof (EFI_GUID *));\r | |
922 | \r | |
923 | //\r | |
924 | // Initialized the Callback Function Table\r | |
925 | //\r | |
926 | mCallbackFnTable = AllocateZeroPool (mPcdTotalTokenCount * sizeof (LIST_ENTRY));\r | |
927 | ASSERT(mCallbackFnTable != NULL);\r | |
928 | \r | |
929 | //\r | |
930 | // EBC compiler is very choosy. It may report warning about comparison\r | |
931 | // between UINTN and 0 . So we add 1 in each size of the\r | |
932 | // comparison.\r | |
933 | //\r | |
934 | for (Index = 0; Index + 1 < mPcdTotalTokenCount + 1; Index++) {\r | |
935 | InitializeListHead (&mCallbackFnTable[Index]);\r | |
936 | }\r | |
937 | }\r | |
938 | \r | |
939 | /**\r | |
940 | Get Variable which contains HII type PCD entry.\r | |
941 | \r | |
942 | @param VariableGuid Variable's guid\r | |
943 | @param VariableName Variable's unicode name string\r | |
944 | @param VariableData Variable's data pointer,\r | |
945 | @param VariableSize Variable's size.\r | |
946 | \r | |
947 | @return the status of gRT->GetVariable\r | |
948 | **/\r | |
949 | EFI_STATUS\r | |
950 | GetHiiVariable (\r | |
951 | IN EFI_GUID *VariableGuid,\r | |
952 | IN UINT16 *VariableName,\r | |
953 | OUT UINT8 **VariableData,\r | |
954 | OUT UINTN *VariableSize\r | |
955 | )\r | |
956 | {\r | |
957 | UINTN Size;\r | |
958 | EFI_STATUS Status;\r | |
959 | UINT8 *Buffer;\r | |
960 | \r | |
961 | Size = 0;\r | |
962 | Buffer = NULL;\r | |
963 | \r | |
964 | //\r | |
965 | // Firstly get the real size of HII variable\r | |
966 | //\r | |
967 | Status = gRT->GetVariable (\r | |
968 | (UINT16 *)VariableName,\r | |
969 | VariableGuid,\r | |
970 | NULL,\r | |
971 | &Size,\r | |
972 | Buffer\r | |
973 | );\r | |
974 | \r | |
975 | //\r | |
976 | // Allocate buffer to hold whole variable data according to variable size.\r | |
977 | //\r | |
978 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
979 | Buffer = (UINT8 *) AllocatePool (Size);\r | |
980 | \r | |
981 | ASSERT (Buffer != NULL);\r | |
982 | \r | |
983 | Status = gRT->GetVariable (\r | |
984 | VariableName,\r | |
985 | VariableGuid,\r | |
986 | NULL,\r | |
987 | &Size,\r | |
988 | Buffer\r | |
989 | );\r | |
990 | \r | |
991 | ASSERT (Status == EFI_SUCCESS);\r | |
992 | *VariableData = Buffer;\r | |
993 | *VariableSize = Size;\r | |
994 | } else {\r | |
995 | //\r | |
996 | // Use Default Data only when variable is not found.\r | |
997 | // For other error status, correct data can't be got, and trig ASSERT().\r | |
998 | //\r | |
999 | ASSERT (Status == EFI_NOT_FOUND);\r | |
1000 | }\r | |
1001 | \r | |
1002 | return Status;\r | |
1003 | }\r | |
1004 | \r | |
1005 | /**\r | |
1006 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry\r | |
1007 | has registered callback function.\r | |
1008 | \r | |
1009 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r | |
1010 | type PCD.\r | |
1011 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
1012 | PCD.\r | |
1013 | @param TokenNumber PCD token number generated by build tools.\r | |
1014 | @param Data Value want to be set for this PCD entry\r | |
1015 | @param Size The size of value\r | |
1016 | \r | |
1017 | **/\r | |
1018 | VOID\r | |
1019 | InvokeCallbackOnSet (\r | |
1020 | UINT32 ExTokenNumber,\r | |
1021 | CONST EFI_GUID *Guid, OPTIONAL\r | |
1022 | UINTN TokenNumber,\r | |
1023 | VOID *Data,\r | |
1024 | UINTN Size\r | |
1025 | )\r | |
1026 | {\r | |
1027 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
1028 | LIST_ENTRY *ListHead;\r | |
1029 | LIST_ENTRY *ListNode;\r | |
1030 | \r | |
1031 | //\r | |
1032 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
1033 | // We have to decrement TokenNumber by 1 to make it usable\r | |
1034 | // as the array index of mCallbackFnTable[].\r | |
1035 | //\r | |
1036 | ListHead = &mCallbackFnTable[TokenNumber - 1];\r | |
1037 | ListNode = GetFirstNode (ListHead);\r | |
1038 | \r | |
1039 | while (ListNode != ListHead) {\r | |
1040 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE (ListNode, CALLBACK_FN_ENTRY, Node);\r | |
1041 | \r | |
1042 | FnTableEntry->CallbackFn(Guid,\r | |
1043 | (Guid == NULL) ? TokenNumber : ExTokenNumber,\r | |
1044 | Data,\r | |
1045 | Size);\r | |
1046 | \r | |
1047 | ListNode = GetNextNode (ListHead, ListNode);\r | |
1048 | }\r | |
1049 | \r | |
1050 | return;\r | |
1051 | }\r | |
1052 | \r | |
1053 | \r | |
1054 | /**\r | |
1055 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
1056 | \r | |
1057 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
1058 | @param Data Value want to be set for PCD entry\r | |
1059 | @param Size Size of value.\r | |
1060 | \r | |
1061 | @return status of SetWorker.\r | |
1062 | \r | |
1063 | **/\r | |
1064 | EFI_STATUS\r | |
1065 | SetValueWorker (\r | |
1066 | IN UINTN TokenNumber,\r | |
1067 | IN VOID *Data,\r | |
1068 | IN UINTN Size\r | |
1069 | )\r | |
1070 | {\r | |
1071 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
1072 | }\r | |
1073 | \r | |
1074 | \r | |
1075 | /**\r | |
1076 | Set value for an PCD entry\r | |
1077 | \r | |
1078 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
1079 | @param Data Value want to be set for PCD entry\r | |
1080 | @param Size Size of value.\r | |
1081 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
1082 | If False, the type of PCD entry's value is not Pointer.\r | |
1083 | \r | |
1084 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
1085 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
1086 | @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.\r | |
1087 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r | |
1088 | range of UINT8, UINT16, UINT32, UINT64\r | |
1089 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number.\r | |
1090 | **/\r | |
1091 | EFI_STATUS\r | |
1092 | SetWorker (\r | |
1093 | IN UINTN TokenNumber,\r | |
1094 | IN VOID *Data,\r | |
1095 | IN OUT UINTN *Size,\r | |
1096 | IN BOOLEAN PtrType\r | |
1097 | )\r | |
1098 | {\r | |
1099 | BOOLEAN IsPeiDb;\r | |
1100 | UINT32 LocalTokenNumber;\r | |
1101 | EFI_GUID *GuidTable;\r | |
1102 | UINT8 *StringTable;\r | |
1103 | EFI_GUID *Guid;\r | |
1104 | UINT16 *Name;\r | |
1105 | UINTN VariableOffset;\r | |
1106 | UINT32 Attributes;\r | |
1107 | VOID *InternalData;\r | |
1108 | VARIABLE_HEAD *VariableHead;\r | |
1109 | UINTN Offset;\r | |
1110 | UINT8 *PcdDb;\r | |
1111 | EFI_STATUS Status;\r | |
1112 | UINTN MaxSize;\r | |
1113 | UINTN TmpTokenNumber;\r | |
1114 | \r | |
1115 | //\r | |
1116 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
1117 | // We have to decrement TokenNumber by 1 to make it usable\r | |
1118 | // as the array index.\r | |
1119 | //\r | |
1120 | TokenNumber--;\r | |
1121 | \r | |
1122 | TmpTokenNumber = TokenNumber;\r | |
1123 | \r | |
1124 | //\r | |
1125 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1126 | // between UINTN and 0 . So we add 1 in each size of the\r | |
1127 | // comparison.\r | |
1128 | //\r | |
1129 | ASSERT (TokenNumber + 1 < mPcdTotalTokenCount + 1);\r | |
1130 | \r | |
1131 | if (PtrType) {\r | |
1132 | //\r | |
1133 | // Get MaxSize first, then check new size with max buffer size.\r | |
1134 | //\r | |
1135 | GetPtrTypeSize (TokenNumber, &MaxSize);\r | |
1136 | if (*Size > MaxSize) {\r | |
1137 | *Size = MaxSize;\r | |
1138 | return EFI_INVALID_PARAMETER;\r | |
1139 | }\r | |
1140 | } else {\r | |
1141 | if (*Size != DxePcdGetSize (TokenNumber + 1)) {\r | |
1142 | return EFI_INVALID_PARAMETER;\r | |
1143 | }\r | |
1144 | }\r | |
1145 | \r | |
1146 | //\r | |
1147 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1148 | // between UINTN and 0 . So we add 1 in each size of the\r | |
1149 | // comparison.\r | |
1150 | //\r | |
1151 | if ((TokenNumber + 1 < mPeiNexTokenCount + 1) ||\r | |
1152 | (TokenNumber + 1 >= mPeiLocalTokenCount + 1 && TokenNumber + 1 < (mPeiLocalTokenCount + mDxeNexTokenCount + 1))) {\r | |
1153 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r | |
1154 | }\r | |
1155 | \r | |
1156 | //\r | |
1157 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
1158 | //\r | |
1159 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
1160 | \r | |
1161 | //\r | |
1162 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1163 | // between UINTN and 0 . So we add 1 in each size of the\r | |
1164 | // comparison.\r | |
1165 | //\r | |
1166 | IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < mPeiLocalTokenCount + 1) ? TRUE : FALSE);\r | |
1167 | \r | |
1168 | LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber + 1);\r | |
1169 | \r | |
1170 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
1171 | \r | |
1172 | PcdDb = IsPeiDb ? ((UINT8 *) mPcdDatabase.PeiDb) : ((UINT8 *) mPcdDatabase.DxeDb);\r | |
1173 | \r | |
1174 | if (IsPeiDb) {\r | |
1175 | StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->StringTableOffset);\r | |
1176 | } else {\r | |
1177 | StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->StringTableOffset);\r | |
1178 | }\r | |
1179 | \r | |
1180 | \r | |
1181 | InternalData = PcdDb + Offset;\r | |
1182 | \r | |
1183 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
1184 | case PCD_TYPE_VPD:\r | |
1185 | ASSERT (FALSE);\r | |
1186 | Status = EFI_INVALID_PARAMETER;\r | |
1187 | break;\r | |
1188 | \r | |
1189 | case PCD_TYPE_STRING:\r | |
1190 | if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
1191 | CopyMem (StringTable + *((STRING_HEAD *)InternalData), Data, *Size);\r | |
1192 | Status = EFI_SUCCESS;\r | |
1193 | } else {\r | |
1194 | Status = EFI_INVALID_PARAMETER;\r | |
1195 | }\r | |
1196 | break;\r | |
1197 | \r | |
1198 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r | |
1199 | case PCD_TYPE_HII:\r | |
1200 | if (PtrType) {\r | |
1201 | if (!SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
1202 | Status = EFI_INVALID_PARAMETER;\r | |
1203 | break;\r | |
1204 | }\r | |
1205 | }\r | |
1206 | \r | |
1207 | if (IsPeiDb) {\r | |
1208 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r | |
1209 | } else {\r | |
1210 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r | |
1211 | }\r | |
1212 | \r | |
1213 | VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r | |
1214 | \r | |
1215 | Guid = GuidTable + VariableHead->GuidTableIndex;\r | |
1216 | Name = (UINT16*) (StringTable + VariableHead->StringIndex);\r | |
1217 | VariableOffset = VariableHead->Offset;\r | |
1218 | Attributes = VariableHead->Attributes;\r | |
1219 | Status = SetHiiVariable (Guid, Name, Attributes, Data, *Size, VariableOffset);\r | |
1220 | break;\r | |
1221 | \r | |
1222 | case PCD_TYPE_DATA:\r | |
1223 | if (PtrType) {\r | |
1224 | if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
1225 | CopyMem (InternalData, Data, *Size);\r | |
1226 | Status = EFI_SUCCESS;\r | |
1227 | } else {\r | |
1228 | Status = EFI_INVALID_PARAMETER;\r | |
1229 | }\r | |
1230 | break;\r | |
1231 | }\r | |
1232 | \r | |
1233 | Status = EFI_SUCCESS;\r | |
1234 | switch (*Size) {\r | |
1235 | case sizeof(UINT8):\r | |
1236 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
1237 | break;\r | |
1238 | \r | |
1239 | case sizeof(UINT16):\r | |
1240 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
1241 | break;\r | |
1242 | \r | |
1243 | case sizeof(UINT32):\r | |
1244 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
1245 | break;\r | |
1246 | \r | |
1247 | case sizeof(UINT64):\r | |
1248 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
1249 | break;\r | |
1250 | \r | |
1251 | default:\r | |
1252 | ASSERT (FALSE);\r | |
1253 | Status = EFI_NOT_FOUND;\r | |
1254 | break;\r | |
1255 | }\r | |
1256 | break;\r | |
1257 | \r | |
1258 | default:\r | |
1259 | ASSERT (FALSE);\r | |
1260 | Status = EFI_NOT_FOUND;\r | |
1261 | break;\r | |
1262 | }\r | |
1263 | \r | |
1264 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
1265 | \r | |
1266 | return Status;\r | |
1267 | }\r | |
1268 | \r | |
1269 | /**\r | |
1270 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
1271 | \r | |
1272 | @param Guid Token space guid for dynamic-ex PCD.\r | |
1273 | @param ExTokenNumber Token number for dynamic-ex PCD.\r | |
1274 | @param GetSize The size of dynamic-ex PCD value.\r | |
1275 | \r | |
1276 | @return PCD entry in PCD database.\r | |
1277 | \r | |
1278 | **/\r | |
1279 | VOID *\r | |
1280 | ExGetWorker (\r | |
1281 | IN CONST EFI_GUID *Guid,\r | |
1282 | IN UINTN ExTokenNumber,\r | |
1283 | IN UINTN GetSize\r | |
1284 | )\r | |
1285 | {\r | |
1286 | return GetWorker(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber), GetSize);\r | |
1287 | }\r | |
1288 | \r | |
1289 | /**\r | |
1290 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
1291 | \r | |
1292 | @param ExTokenNumber Token number for dynamic-ex PCD.\r | |
1293 | @param Guid Token space guid for dynamic-ex PCD.\r | |
1294 | @param Data Value want to be set.\r | |
1295 | @param SetSize The size of value.\r | |
1296 | \r | |
1297 | @return status of ExSetWorker().\r | |
1298 | \r | |
1299 | **/\r | |
1300 | EFI_STATUS\r | |
1301 | ExSetValueWorker (\r | |
1302 | IN UINTN ExTokenNumber,\r | |
1303 | IN CONST EFI_GUID *Guid,\r | |
1304 | IN VOID *Data,\r | |
1305 | IN UINTN SetSize\r | |
1306 | )\r | |
1307 | {\r | |
1308 | return ExSetWorker (ExTokenNumber, Guid, Data, &SetSize, FALSE);\r | |
1309 | }\r | |
1310 | \r | |
1311 | /**\r | |
1312 | Set value for a dynamic-ex PCD entry.\r | |
1313 | \r | |
1314 | This routine find the local token number according to dynamic-ex PCD's token\r | |
1315 | space guid and token number firstly, and invoke callback function if this PCD\r | |
1316 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
1317 | PCD value.\r | |
1318 | \r | |
1319 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
1320 | @param Guid Token space guid for dynamic-ex PCD.\r | |
1321 | @param Data PCD value want to be set\r | |
1322 | @param SetSize Size of value.\r | |
1323 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
1324 | If FALSE, this PCD entry is not pointer type.\r | |
1325 | \r | |
1326 | @return status of SetWorker().\r | |
1327 | \r | |
1328 | **/\r | |
1329 | EFI_STATUS\r | |
1330 | ExSetWorker (\r | |
1331 | IN UINTN ExTokenNumber,\r | |
1332 | IN CONST EFI_GUID *Guid,\r | |
1333 | IN VOID *Data,\r | |
1334 | IN OUT UINTN *SetSize,\r | |
1335 | IN BOOLEAN PtrType\r | |
1336 | )\r | |
1337 | {\r | |
1338 | UINTN TokenNumber;\r | |
1339 | \r | |
1340 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber);\r | |
1341 | \r | |
1342 | InvokeCallbackOnSet ((UINT32) ExTokenNumber, Guid, TokenNumber, Data, *SetSize);\r | |
1343 | \r | |
1344 | return SetWorker (TokenNumber, Data, SetSize, PtrType);\r | |
1345 | \r | |
1346 | }\r | |
1347 | \r | |
1348 | /**\r | |
1349 | Get variable size and data from HII-type PCDs.\r | |
1350 | \r | |
1351 | @param[in] VariableGuid Guid of variable which stored value of a HII-type PCD.\r | |
1352 | @param[in] VariableName Unicode name of variable which stored value of a HII-type PCD.\r | |
1353 | @param[out] VariableSize Pointer to variable size got from HII-type PCDs.\r | |
1354 | @param[out] VariableData Pointer to variable data got from HII-type PCDs.\r | |
1355 | \r | |
1356 | **/\r | |
1357 | VOID\r | |
1358 | GetVariableSizeAndDataFromHiiPcd (\r | |
1359 | IN EFI_GUID *VariableGuid,\r | |
1360 | IN UINT16 *VariableName,\r | |
1361 | OUT UINTN *VariableSize,\r | |
1362 | OUT VOID *VariableData OPTIONAL\r | |
1363 | )\r | |
1364 | {\r | |
1365 | BOOLEAN IsPeiDb;\r | |
1366 | PCD_DATABASE_INIT *Database;\r | |
1367 | UINTN TokenNumber;\r | |
1368 | UINT32 LocalTokenNumber;\r | |
1369 | UINTN Offset;\r | |
1370 | EFI_GUID *GuidTable;\r | |
1371 | UINT8 *StringTable;\r | |
1372 | VARIABLE_HEAD *VariableHead;\r | |
1373 | EFI_GUID *Guid;\r | |
1374 | UINT16 *Name;\r | |
1375 | UINTN PcdDataSize;\r | |
1376 | UINTN Size;\r | |
1377 | UINT8 *VaraiableDefaultBuffer;\r | |
1378 | STRING_HEAD StringTableIdx;\r | |
1379 | \r | |
1380 | *VariableSize = 0;\r | |
1381 | \r | |
1382 | //\r | |
1383 | // Go through PCD database to find out DynamicHii PCDs.\r | |
1384 | //\r | |
1385 | for (TokenNumber = 1; TokenNumber <= mPcdTotalTokenCount; TokenNumber++) {\r | |
1386 | IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < mPeiLocalTokenCount + 1) ? TRUE : FALSE);\r | |
1387 | Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r | |
1388 | LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber);\r | |
1389 | if ((LocalTokenNumber & PCD_TYPE_HII) != 0) {\r | |
1390 | //\r | |
1391 | // Get the Variable Guid and Name pointer.\r | |
1392 | //\r | |
1393 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
1394 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *) Database + Offset);\r | |
1395 | StringTable = (UINT8 *) ((UINT8 *) Database + Database->StringTableOffset);\r | |
1396 | GuidTable = (EFI_GUID *) ((UINT8 *) Database + Database->GuidTableOffset);\r | |
1397 | Guid = GuidTable + VariableHead->GuidTableIndex;\r | |
1398 | Name = (UINT16*) (StringTable + VariableHead->StringIndex);\r | |
1399 | if (CompareGuid (VariableGuid, Guid) && (StrCmp (VariableName, Name) == 0)) {\r | |
1400 | //\r | |
1401 | // It is the matched DynamicHii PCD.\r | |
1402 | //\r | |
1403 | PcdDataSize = DxePcdGetSize (TokenNumber);\r | |
1404 | Size = VariableHead->Offset + PcdDataSize;\r | |
1405 | if (Size > *VariableSize) {\r | |
1406 | *VariableSize = Size;\r | |
1407 | }\r | |
1408 | if (VariableData != NULL) {\r | |
1409 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r | |
1410 | //\r | |
1411 | // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of\r | |
1412 | // string array in string table.\r | |
1413 | //\r | |
1414 | StringTableIdx = *(STRING_HEAD *) ((UINT8 *) Database + VariableHead->DefaultValueOffset);\r | |
1415 | VaraiableDefaultBuffer = (UINT8 *) (StringTable + StringTableIdx);\r | |
1416 | } else {\r | |
1417 | VaraiableDefaultBuffer = (UINT8 *) Database + VariableHead->DefaultValueOffset;\r | |
1418 | }\r | |
1419 | CopyMem ((UINT8 *) VariableData + VariableHead->Offset, VaraiableDefaultBuffer, PcdDataSize);\r | |
1420 | }\r | |
1421 | }\r | |
1422 | }\r | |
1423 | }\r | |
1424 | }\r | |
1425 | \r | |
1426 | /**\r | |
1427 | Set value for HII-type PCD.\r | |
1428 | \r | |
1429 | A HII-type PCD's value is stored in a variable. Setting/Getting the value of\r | |
1430 | HII-type PCD is to visit this variable.\r | |
1431 | \r | |
1432 | @param VariableGuid Guid of variable which stored value of a HII-type PCD.\r | |
1433 | @param VariableName Unicode name of variable which stored value of a HII-type PCD.\r | |
1434 | @param SetAttributes Attributes bitmask to set for the variable.\r | |
1435 | @param Data Value want to be set.\r | |
1436 | @param DataSize Size of value\r | |
1437 | @param Offset Value offset of HII-type PCD in variable.\r | |
1438 | \r | |
1439 | @return status of GetVariable()/SetVariable().\r | |
1440 | \r | |
1441 | **/\r | |
1442 | EFI_STATUS\r | |
1443 | SetHiiVariable (\r | |
1444 | IN EFI_GUID *VariableGuid,\r | |
1445 | IN UINT16 *VariableName,\r | |
1446 | IN UINT32 SetAttributes,\r | |
1447 | IN CONST VOID *Data,\r | |
1448 | IN UINTN DataSize,\r | |
1449 | IN UINTN Offset\r | |
1450 | )\r | |
1451 | {\r | |
1452 | UINTN Size;\r | |
1453 | VOID *Buffer;\r | |
1454 | EFI_STATUS Status;\r | |
1455 | UINT32 Attribute;\r | |
1456 | UINTN SetSize;\r | |
1457 | \r | |
1458 | Size = 0;\r | |
1459 | SetSize = 0;\r | |
1460 | \r | |
1461 | //\r | |
1462 | // Try to get original variable size information.\r | |
1463 | //\r | |
1464 | Status = gRT->GetVariable (\r | |
1465 | (UINT16 *)VariableName,\r | |
1466 | VariableGuid,\r | |
1467 | NULL,\r | |
1468 | &Size,\r | |
1469 | NULL\r | |
1470 | );\r | |
1471 | \r | |
1472 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
1473 | //\r | |
1474 | // Patch new PCD's value to offset in given HII variable.\r | |
1475 | //\r | |
1476 | if (Size >= (DataSize + Offset)) {\r | |
1477 | SetSize = Size;\r | |
1478 | } else {\r | |
1479 | SetSize = DataSize + Offset;\r | |
1480 | }\r | |
1481 | Buffer = AllocatePool (SetSize);\r | |
1482 | ASSERT (Buffer != NULL);\r | |
1483 | \r | |
1484 | Status = gRT->GetVariable (\r | |
1485 | VariableName,\r | |
1486 | VariableGuid,\r | |
1487 | &Attribute,\r | |
1488 | &Size,\r | |
1489 | Buffer\r | |
1490 | );\r | |
1491 | \r | |
1492 | ASSERT_EFI_ERROR (Status);\r | |
1493 | \r | |
1494 | CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r | |
1495 | \r | |
1496 | if (SetAttributes == 0) {\r | |
1497 | SetAttributes = Attribute;\r | |
1498 | }\r | |
1499 | \r | |
1500 | Status = gRT->SetVariable (\r | |
1501 | VariableName,\r | |
1502 | VariableGuid,\r | |
1503 | SetAttributes,\r | |
1504 | SetSize,\r | |
1505 | Buffer\r | |
1506 | );\r | |
1507 | \r | |
1508 | FreePool (Buffer);\r | |
1509 | return Status;\r | |
1510 | } else if (Status == EFI_NOT_FOUND) {\r | |
1511 | //\r | |
1512 | // If variable does not exist, a new variable need to be created.\r | |
1513 | //\r | |
1514 | \r | |
1515 | //\r | |
1516 | // Get size, allocate buffer and get data.\r | |
1517 | //\r | |
1518 | GetVariableSizeAndDataFromHiiPcd (VariableGuid, VariableName, &Size, NULL);\r | |
1519 | Buffer = AllocateZeroPool (Size);\r | |
1520 | ASSERT (Buffer != NULL);\r | |
1521 | GetVariableSizeAndDataFromHiiPcd (VariableGuid, VariableName, &Size, Buffer);\r | |
1522 | \r | |
1523 | //\r | |
1524 | // Update buffer.\r | |
1525 | //\r | |
1526 | CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r | |
1527 | \r | |
1528 | if (SetAttributes == 0) {\r | |
1529 | SetAttributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE;\r | |
1530 | }\r | |
1531 | \r | |
1532 | Status = gRT->SetVariable (\r | |
1533 | VariableName,\r | |
1534 | VariableGuid,\r | |
1535 | SetAttributes,\r | |
1536 | Size,\r | |
1537 | Buffer\r | |
1538 | );\r | |
1539 | \r | |
1540 | FreePool (Buffer);\r | |
1541 | return Status;\r | |
1542 | }\r | |
1543 | \r | |
1544 | //\r | |
1545 | // If we drop to here, the value is failed to be written in to variable area.\r | |
1546 | //\r | |
1547 | return Status;\r | |
1548 | }\r | |
1549 | \r | |
1550 | /**\r | |
1551 | Get Token Number according to dynamic-ex PCD's {token space guid:token number}\r | |
1552 | \r | |
1553 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r | |
1554 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
1555 | space guid: token number} to Token Number.\r | |
1556 | \r | |
1557 | @param Guid Token space guid for dynamic-ex PCD entry.\r | |
1558 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
1559 | \r | |
1560 | @return Token Number for dynamic-ex PCD.\r | |
1561 | \r | |
1562 | **/\r | |
1563 | UINTN\r | |
1564 | GetExPcdTokenNumber (\r | |
1565 | IN CONST EFI_GUID *Guid,\r | |
1566 | IN UINT32 ExTokenNumber\r | |
1567 | )\r | |
1568 | {\r | |
1569 | UINT32 Index;\r | |
1570 | DYNAMICEX_MAPPING *ExMap;\r | |
1571 | EFI_GUID *GuidTable;\r | |
1572 | EFI_GUID *MatchGuid;\r | |
1573 | UINTN MatchGuidIdx;\r | |
1574 | \r | |
1575 | if (!mPeiDatabaseEmpty) {\r | |
1576 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->ExMapTableOffset);\r | |
1577 | GuidTable = (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r | |
1578 | \r | |
1579 | MatchGuid = ScanGuid (GuidTable, mPeiGuidTableSize, Guid);\r | |
1580 | \r | |
1581 | if (MatchGuid != NULL) {\r | |
1582 | \r | |
1583 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1584 | \r | |
1585 | for (Index = 0; Index < mPcdDatabase.PeiDb->ExTokenCount; Index++) {\r | |
1586 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r | |
1587 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
1588 | return ExMap[Index].TokenNumber;\r | |
1589 | }\r | |
1590 | }\r | |
1591 | }\r | |
1592 | }\r | |
1593 | \r | |
1594 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->ExMapTableOffset);\r | |
1595 | GuidTable = (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r | |
1596 | \r | |
1597 | MatchGuid = ScanGuid (GuidTable, mDxeGuidTableSize, Guid);\r | |
1598 | //\r | |
1599 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
1600 | // error in the BUILD system.\r | |
1601 | //\r | |
1602 | ASSERT (MatchGuid != NULL);\r | |
1603 | \r | |
1604 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1605 | \r | |
1606 | for (Index = 0; Index < mPcdDatabase.DxeDb->ExTokenCount; Index++) {\r | |
1607 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r | |
1608 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
1609 | return ExMap[Index].TokenNumber;\r | |
1610 | }\r | |
1611 | }\r | |
1612 | \r | |
1613 | ASSERT (FALSE);\r | |
1614 | \r | |
1615 | return 0;\r | |
1616 | }\r | |
1617 | \r | |
1618 | /**\r | |
1619 | Wrapper function of getting index of PCD entry in size table.\r | |
1620 | \r | |
1621 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1622 | @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
1623 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
1624 | \r | |
1625 | @return index of PCD entry in size table.\r | |
1626 | **/\r | |
1627 | UINTN\r | |
1628 | GetSizeTableIndex (\r | |
1629 | IN UINTN LocalTokenNumberTableIdx,\r | |
1630 | IN BOOLEAN IsPeiDb\r | |
1631 | )\r | |
1632 | {\r | |
1633 | UINT32 *LocalTokenNumberTable;\r | |
1634 | UINTN LocalTokenNumber;\r | |
1635 | UINTN Index;\r | |
1636 | UINTN SizeTableIdx;\r | |
1637 | \r | |
1638 | if (IsPeiDb) {\r | |
1639 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r | |
1640 | } else {\r | |
1641 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
1642 | }\r | |
1643 | \r | |
1644 | SizeTableIdx = 0;\r | |
1645 | \r | |
1646 | for (Index = 0; Index < LocalTokenNumberTableIdx; Index ++) {\r | |
1647 | LocalTokenNumber = LocalTokenNumberTable[Index];\r | |
1648 | \r | |
1649 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
1650 | //\r | |
1651 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type\r | |
1652 | // PCD entry.\r | |
1653 | //\r | |
1654 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r | |
1655 | //\r | |
1656 | // We have only two entry for VPD enabled PCD entry:\r | |
1657 | // 1) MAX Size.\r | |
1658 | // 2) Current Size\r | |
1659 | // Current size is equal to MAX size.\r | |
1660 | //\r | |
1661 | SizeTableIdx += 2;\r | |
1662 | } else {\r | |
1663 | //\r | |
1664 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1665 | // 1) MAX SIZE\r | |
1666 | // 2) Current Size\r | |
1667 | //\r | |
1668 | SizeTableIdx += 2;\r | |
1669 | }\r | |
1670 | }\r | |
1671 | \r | |
1672 | }\r | |
1673 | \r | |
1674 | return SizeTableIdx;\r | |
1675 | }\r | |
1676 | \r | |
1677 | /**\r | |
1678 | Get size of POINTER type PCD value.\r | |
1679 | \r | |
1680 | @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r | |
1681 | @param MaxSize Maxmium size of POINTER type PCD value.\r | |
1682 | \r | |
1683 | @return size of POINTER type PCD value.\r | |
1684 | \r | |
1685 | **/\r | |
1686 | UINTN\r | |
1687 | GetPtrTypeSize (\r | |
1688 | IN UINTN LocalTokenNumberTableIdx,\r | |
1689 | OUT UINTN *MaxSize\r | |
1690 | )\r | |
1691 | {\r | |
1692 | INTN SizeTableIdx;\r | |
1693 | UINTN LocalTokenNumber;\r | |
1694 | SIZE_INFO *SizeTable;\r | |
1695 | BOOLEAN IsPeiDb;\r | |
1696 | UINT32 *LocalTokenNumberTable;\r | |
1697 | \r | |
1698 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1699 | // between UINTN and 0 . So we add 1 in each size of the\r | |
1700 | // comparison.\r | |
1701 | IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < mPeiLocalTokenCount + 1);\r | |
1702 | \r | |
1703 | \r | |
1704 | if (IsPeiDb) {\r | |
1705 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r | |
1706 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->SizeTableOffset);\r | |
1707 | } else {\r | |
1708 | LocalTokenNumberTableIdx -= mPeiLocalTokenCount;\r | |
1709 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
1710 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SizeTableOffset);\r | |
1711 | }\r | |
1712 | \r | |
1713 | LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1714 | \r | |
1715 | ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r | |
1716 | \r | |
1717 | SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1718 | \r | |
1719 | *MaxSize = SizeTable[SizeTableIdx];\r | |
1720 | //\r | |
1721 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type\r | |
1722 | // PCD entry.\r | |
1723 | //\r | |
1724 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r | |
1725 | //\r | |
1726 | // We have only two entry for VPD enabled PCD entry:\r | |
1727 | // 1) MAX Size.\r | |
1728 | // 2) Current Size\r | |
1729 | // We consider current size is equal to MAX size.\r | |
1730 | //\r | |
1731 | return *MaxSize;\r | |
1732 | } else {\r | |
1733 | //\r | |
1734 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1735 | // 1) MAX SIZE\r | |
1736 | // 2) Current Size\r | |
1737 | //\r | |
1738 | return SizeTable[SizeTableIdx + 1];\r | |
1739 | }\r | |
1740 | }\r | |
1741 | \r | |
1742 | /**\r | |
1743 | Set size of POINTER type PCD value. The size should not exceed the maximum size\r | |
1744 | of this PCD value.\r | |
1745 | \r | |
1746 | @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r | |
1747 | @param CurrentSize Size of POINTER type PCD value.\r | |
1748 | \r | |
1749 | @retval TRUE Success to set size of PCD value.\r | |
1750 | @retval FALSE Fail to set size of PCD value.\r | |
1751 | **/\r | |
1752 | BOOLEAN\r | |
1753 | SetPtrTypeSize (\r | |
1754 | IN UINTN LocalTokenNumberTableIdx,\r | |
1755 | IN OUT UINTN *CurrentSize\r | |
1756 | )\r | |
1757 | {\r | |
1758 | INTN SizeTableIdx;\r | |
1759 | UINTN LocalTokenNumber;\r | |
1760 | SIZE_INFO *SizeTable;\r | |
1761 | UINTN MaxSize;\r | |
1762 | BOOLEAN IsPeiDb;\r | |
1763 | UINT32 *LocalTokenNumberTable;\r | |
1764 | \r | |
1765 | //\r | |
1766 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1767 | // between UINTN and 0 . So we add 1 in each size of the\r | |
1768 | // comparison.\r | |
1769 | //\r | |
1770 | IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < mPeiLocalTokenCount + 1);\r | |
1771 | \r | |
1772 | if (IsPeiDb) {\r | |
1773 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r | |
1774 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->SizeTableOffset);\r | |
1775 | } else {\r | |
1776 | LocalTokenNumberTableIdx -= mPeiLocalTokenCount;\r | |
1777 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
1778 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SizeTableOffset);\r | |
1779 | }\r | |
1780 | \r | |
1781 | LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1782 | \r | |
1783 | ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r | |
1784 | \r | |
1785 | SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1786 | \r | |
1787 | MaxSize = SizeTable[SizeTableIdx];\r | |
1788 | //\r | |
1789 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type\r | |
1790 | // PCD entry.\r | |
1791 | //\r | |
1792 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r | |
1793 | //\r | |
1794 | // We shouldn't come here as we don't support SET for VPD\r | |
1795 | //\r | |
1796 | ASSERT (FALSE);\r | |
1797 | return FALSE;\r | |
1798 | } else {\r | |
1799 | if ((*CurrentSize > MaxSize) ||\r | |
1800 | (*CurrentSize == MAX_ADDRESS)) {\r | |
1801 | *CurrentSize = MaxSize;\r | |
1802 | return FALSE;\r | |
1803 | }\r | |
1804 | \r | |
1805 | //\r | |
1806 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1807 | // 1) MAX SIZE\r | |
1808 | // 2) Current Size\r | |
1809 | //\r | |
1810 | SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r | |
1811 | return TRUE;\r | |
1812 | }\r | |
1813 | }\r | |
1814 | \r | |
1815 | /**\r | |
1816 | VariableLock DynamicHiiPcd.\r | |
1817 | \r | |
1818 | @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
1819 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
1820 | @param[in] VariableLock Pointer to VariableLockProtocol.\r | |
1821 | \r | |
1822 | **/\r | |
1823 | VOID\r | |
1824 | VariableLockDynamicHiiPcd (\r | |
1825 | IN BOOLEAN IsPeiDb,\r | |
1826 | IN EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock\r | |
1827 | )\r | |
1828 | {\r | |
1829 | EFI_STATUS Status;\r | |
1830 | PCD_DATABASE_INIT *Database;\r | |
1831 | UINT32 LocalTokenCount;\r | |
1832 | UINTN TokenNumber;\r | |
1833 | UINT32 LocalTokenNumber;\r | |
1834 | UINTN Offset;\r | |
1835 | EFI_GUID *GuidTable;\r | |
1836 | UINT8 *StringTable;\r | |
1837 | VARIABLE_HEAD *VariableHead;\r | |
1838 | EFI_GUID *Guid;\r | |
1839 | UINT16 *Name;\r | |
1840 | \r | |
1841 | Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r | |
1842 | LocalTokenCount = IsPeiDb ? mPeiLocalTokenCount: mDxeLocalTokenCount;\r | |
1843 | \r | |
1844 | //\r | |
1845 | // Go through PCD database to find out DynamicHii PCDs.\r | |
1846 | //\r | |
1847 | for (TokenNumber = 1; TokenNumber <= LocalTokenCount; TokenNumber++) {\r | |
1848 | if (IsPeiDb) {\r | |
1849 | LocalTokenNumber = GetLocalTokenNumber (TRUE, TokenNumber);\r | |
1850 | } else {\r | |
1851 | LocalTokenNumber = GetLocalTokenNumber (FALSE, TokenNumber + mPeiLocalTokenCount);\r | |
1852 | }\r | |
1853 | if ((LocalTokenNumber & PCD_TYPE_HII) != 0) {\r | |
1854 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
1855 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *) Database + Offset);\r | |
1856 | //\r | |
1857 | // Why not to set property by VarCheckProtocol with Attributes and Property directly here?\r | |
1858 | // It is because that set property by VarCheckProtocol will indicate the variable to\r | |
1859 | // be a system variable, but the unknown max size of the variable is dangerous to\r | |
1860 | // the system variable region.\r | |
1861 | //\r | |
1862 | if ((VariableHead->Property & VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY) != 0) {\r | |
1863 | //\r | |
1864 | // DynamicHii PCD with RO property set in *.dsc.\r | |
1865 | //\r | |
1866 | StringTable = (UINT8 *) ((UINT8 *) Database + Database->StringTableOffset);\r | |
1867 | GuidTable = (EFI_GUID *) ((UINT8 *) Database + Database->GuidTableOffset);\r | |
1868 | Guid = GuidTable + VariableHead->GuidTableIndex;\r | |
1869 | Name = (UINT16*) (StringTable + VariableHead->StringIndex);\r | |
1870 | Status = VariableLock->RequestToLock (VariableLock, Name, Guid);\r | |
1871 | ASSERT_EFI_ERROR (Status);\r | |
1872 | }\r | |
1873 | }\r | |
1874 | }\r | |
1875 | }\r | |
1876 | \r | |
1877 | /**\r | |
1878 | VariableLockProtocol callback\r | |
1879 | to lock the variables referenced by DynamicHii PCDs with RO property set in *.dsc.\r | |
1880 | \r | |
1881 | @param[in] Event Event whose notification function is being invoked.\r | |
1882 | @param[in] Context Pointer to the notification function's context.\r | |
1883 | \r | |
1884 | **/\r | |
1885 | VOID\r | |
1886 | EFIAPI\r | |
1887 | VariableLockCallBack (\r | |
1888 | IN EFI_EVENT Event,\r | |
1889 | IN VOID *Context\r | |
1890 | )\r | |
1891 | {\r | |
1892 | EFI_STATUS Status;\r | |
1893 | EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r | |
1894 | \r | |
1895 | Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);\r | |
1896 | if (!EFI_ERROR (Status)) {\r | |
1897 | VariableLockDynamicHiiPcd (TRUE, VariableLock);\r | |
1898 | VariableLockDynamicHiiPcd (FALSE, VariableLock);\r | |
1899 | }\r | |
1900 | }\r | |
1901 | \r |