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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 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "Service.h"\r | |
17 | #include <Library/DxeServicesLib.h>\r | |
18 | \r | |
19 | PCD_DATABASE mPcdDatabase;\r | |
20 | \r | |
21 | UINT32 mPcdTotalTokenCount; \r | |
22 | UINT32 mPeiLocalTokenCount; \r | |
23 | UINT32 mDxeLocalTokenCount; \r | |
24 | UINT32 mPeiNexTokenCount; \r | |
25 | UINT32 mDxeNexTokenCount; \r | |
26 | UINT32 mPeiExMapppingTableSize;\r | |
27 | UINT32 mDxeExMapppingTableSize;\r | |
28 | UINT32 mPeiGuidTableSize;\r | |
29 | UINT32 mDxeGuidTableSize;\r | |
30 | \r | |
31 | BOOLEAN mPeiExMapTableEmpty; \r | |
32 | BOOLEAN mDxeExMapTableEmpty; \r | |
33 | BOOLEAN mPeiDatabaseEmpty;\r | |
34 | \r | |
35 | LIST_ENTRY *mCallbackFnTable;\r | |
36 | EFI_GUID **TmpTokenSpaceBuffer;\r | |
37 | UINTN TmpTokenSpaceBufferCount; \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 | UINTN TmpTokenNumber;\r | |
55 | UINT32 *LocalTokenNumberTable;\r | |
56 | UINT32 LocalTokenNumber;\r | |
57 | UINTN Size;\r | |
58 | UINTN MaxSize;\r | |
59 | \r | |
60 | //\r | |
61 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
62 | // We have to decrement TokenNumber by 1 to make it usable\r | |
63 | // as the array index.\r | |
64 | //\r | |
65 | TokenNumber--;\r | |
66 | \r | |
67 | //\r | |
68 | // Backup the TokenNumber passed in as GetPtrTypeSize need the original TokenNumber\r | |
69 | // \r | |
70 | TmpTokenNumber = TokenNumber;\r | |
71 | \r | |
72 | LocalTokenNumberTable = IsPeiDb ? (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset) : \r | |
73 | (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
74 | TokenNumber = IsPeiDb ? TokenNumber : TokenNumber - mPeiLocalTokenCount;\r | |
75 | \r | |
76 | LocalTokenNumber = LocalTokenNumberTable[TokenNumber];\r | |
77 | \r | |
78 | Size = (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r | |
79 | \r | |
80 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
81 | if (Size == 0) {\r | |
82 | GetPtrTypeSize (TmpTokenNumber, &MaxSize);\r | |
83 | } else {\r | |
84 | MaxSize = Size;\r | |
85 | }\r | |
86 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb);\r | |
87 | }\r | |
88 | \r | |
89 | return LocalTokenNumber;\r | |
90 | }\r | |
91 | \r | |
92 | /**\r | |
93 | Get PCD type by Local Token Number.\r | |
94 | \r | |
95 | @param[in] LocalTokenNumber The PCD local token number.\r | |
96 | \r | |
97 | @return PCD type.\r | |
98 | **/\r | |
99 | EFI_PCD_TYPE\r | |
100 | GetPcdType (\r | |
101 | IN UINT32 LocalTokenNumber\r | |
102 | )\r | |
103 | {\r | |
104 | switch (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) {\r | |
105 | case PCD_DATUM_TYPE_POINTER:\r | |
106 | return EFI_PCD_TYPE_PTR;\r | |
107 | case PCD_DATUM_TYPE_UINT8:\r | |
108 | if ((LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) == PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r | |
109 | return EFI_PCD_TYPE_BOOL;\r | |
110 | } else {\r | |
111 | return EFI_PCD_TYPE_8;\r | |
112 | }\r | |
113 | case PCD_DATUM_TYPE_UINT16:\r | |
114 | return EFI_PCD_TYPE_16;\r | |
115 | case PCD_DATUM_TYPE_UINT32:\r | |
116 | return EFI_PCD_TYPE_32;\r | |
117 | case PCD_DATUM_TYPE_UINT64:\r | |
118 | return EFI_PCD_TYPE_64;\r | |
119 | default:\r | |
120 | ASSERT (FALSE);\r | |
121 | return EFI_PCD_TYPE_8;\r | |
122 | }\r | |
123 | }\r | |
124 | \r | |
125 | /**\r | |
126 | Get PCD name.\r | |
127 | \r | |
128 | @param[in] OnlyTokenSpaceName If TRUE, only need to get the TokenSpaceCName.\r | |
129 | If FALSE, need to get the full PCD name.\r | |
130 | @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
131 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
132 | @param[in] TokenNumber The PCD token number.\r | |
133 | \r | |
134 | @return The TokenSpaceCName or full PCD name.\r | |
135 | **/\r | |
136 | CHAR8 *\r | |
137 | GetPcdName (\r | |
138 | IN BOOLEAN OnlyTokenSpaceName,\r | |
139 | IN BOOLEAN IsPeiDb,\r | |
140 | IN UINTN TokenNumber\r | |
141 | )\r | |
142 | {\r | |
143 | PCD_DATABASE_INIT *Database;\r | |
144 | UINT8 *StringTable;\r | |
145 | PCD_NAME_INDEX *PcdNameIndex;\r | |
146 | CHAR8 *TokenSpaceName;\r | |
147 | CHAR8 *PcdName;\r | |
148 | CHAR8 *Name;\r | |
149 | \r | |
150 | //\r | |
151 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
152 | // We have to decrement TokenNumber by 1 to make it usable\r | |
153 | // as the array index.\r | |
154 | //\r | |
155 | TokenNumber--;\r | |
156 | \r | |
157 | Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r | |
158 | TokenNumber = IsPeiDb ? TokenNumber : TokenNumber - mPeiLocalTokenCount;\r | |
159 | \r | |
160 | StringTable = (UINT8 *) Database + Database->StringTableOffset;\r | |
161 | \r | |
162 | //\r | |
163 | // Get the PCD name index.\r | |
164 | //\r | |
165 | PcdNameIndex = (PCD_NAME_INDEX *)((UINT8 *) Database + Database->PcdNameTableOffset) + TokenNumber;\r | |
166 | TokenSpaceName = (CHAR8 *)&StringTable[PcdNameIndex->TokenSpaceCNameIndex];\r | |
167 | PcdName = (CHAR8 *)&StringTable[PcdNameIndex->PcdCNameIndex];\r | |
168 | \r | |
169 | if (OnlyTokenSpaceName) {\r | |
170 | //\r | |
171 | // Only need to get the TokenSpaceCName.\r | |
172 | //\r | |
173 | Name = AllocateCopyPool (AsciiStrSize (TokenSpaceName), TokenSpaceName);\r | |
174 | } else {\r | |
175 | //\r | |
176 | // Need to get the full PCD name.\r | |
177 | //\r | |
178 | Name = AllocateZeroPool (AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName));\r | |
179 | ASSERT (Name != NULL);\r | |
180 | //\r | |
181 | // Catenate TokenSpaceCName and PcdCName with a '.' to form the full PCD name.\r | |
182 | //\r | |
183 | AsciiStrCat (Name, TokenSpaceName);\r | |
184 | Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r | |
185 | AsciiStrCat (Name, PcdName); \r | |
186 | }\r | |
187 | \r | |
188 | return Name;\r | |
189 | }\r | |
190 | \r | |
191 | /**\r | |
192 | Retrieve additional information associated with a PCD token.\r | |
193 | \r | |
194 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
195 | human readable name that is associated with the token.\r | |
196 | \r | |
197 | @param[in] IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
198 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
199 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
200 | @param[in] TokenNumber The PCD token number.\r | |
201 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
202 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. \r | |
203 | \r | |
204 | @retval EFI_SUCCESS The PCD information was returned successfully\r | |
205 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
206 | **/\r | |
207 | EFI_STATUS\r | |
208 | ExGetPcdInfo (\r | |
209 | IN BOOLEAN IsPeiDb,\r | |
210 | IN CONST EFI_GUID *Guid,\r | |
211 | IN UINTN TokenNumber,\r | |
212 | OUT EFI_PCD_INFO *PcdInfo\r | |
213 | )\r | |
214 | {\r | |
215 | PCD_DATABASE_INIT *Database;\r | |
216 | UINTN GuidTableIdx;\r | |
217 | EFI_GUID *MatchGuid;\r | |
218 | EFI_GUID *GuidTable;\r | |
219 | DYNAMICEX_MAPPING *ExMapTable;\r | |
220 | UINTN Index;\r | |
221 | UINT32 LocalTokenNumber;\r | |
222 | \r | |
223 | Database = IsPeiDb ? mPcdDatabase.PeiDb: mPcdDatabase.DxeDb;\r | |
224 | \r | |
225 | GuidTable = (EFI_GUID *)((UINT8 *)Database + Database->GuidTableOffset);\r | |
226 | MatchGuid = ScanGuid (GuidTable, Database->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
227 | \r | |
228 | if (MatchGuid == NULL) {\r | |
229 | return EFI_NOT_FOUND;\r | |
230 | }\r | |
231 | \r | |
232 | GuidTableIdx = MatchGuid - GuidTable;\r | |
233 | \r | |
234 | ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)Database + Database->ExMapTableOffset);\r | |
235 | \r | |
236 | //\r | |
237 | // Find the PCD by GuidTableIdx and ExTokenNumber in ExMapTable.\r | |
238 | //\r | |
239 | for (Index = 0; Index < Database->ExTokenCount; Index++) {\r | |
240 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
241 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
242 | //\r | |
243 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
244 | // PcdSize to 0 and PcdName to the null-terminated ASCII string\r | |
245 | // associated with the token's namespace Guid.\r | |
246 | //\r | |
247 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
248 | PcdInfo->PcdSize = 0;\r | |
249 | //\r | |
250 | // Here use one representative in the token space to get the TokenSpaceCName.\r | |
251 | // \r | |
252 | PcdInfo->PcdName = GetPcdName (TRUE, IsPeiDb, ExMapTable[Index].TokenNumber);\r | |
253 | return EFI_SUCCESS;\r | |
254 | } else if (ExMapTable[Index].ExTokenNumber == TokenNumber) {\r | |
255 | PcdInfo->PcdSize = DxePcdGetSize (ExMapTable[Index].TokenNumber);\r | |
256 | LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, ExMapTable[Index].TokenNumber);\r | |
257 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
258 | PcdInfo->PcdName = GetPcdName (FALSE, IsPeiDb, ExMapTable[Index].TokenNumber);\r | |
259 | return EFI_SUCCESS;\r | |
260 | }\r | |
261 | }\r | |
262 | }\r | |
263 | \r | |
264 | return EFI_NOT_FOUND;\r | |
265 | }\r | |
266 | \r | |
267 | /**\r | |
268 | Retrieve additional information associated with a PCD token.\r | |
269 | \r | |
270 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
271 | human readable name that is associated with the token.\r | |
272 | \r | |
273 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
274 | @param[in] TokenNumber The PCD token number.\r | |
275 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
276 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r | |
277 | \r | |
278 | @retval EFI_SUCCESS The PCD information was returned successfully.\r | |
279 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
280 | **/\r | |
281 | EFI_STATUS\r | |
282 | DxeGetPcdInfo (\r | |
283 | IN CONST EFI_GUID *Guid,\r | |
284 | IN UINTN TokenNumber,\r | |
285 | OUT EFI_PCD_INFO *PcdInfo\r | |
286 | )\r | |
287 | {\r | |
288 | EFI_STATUS Status;\r | |
289 | BOOLEAN PeiExMapTableEmpty;\r | |
290 | BOOLEAN DxeExMapTableEmpty;\r | |
291 | UINT32 LocalTokenNumber;\r | |
292 | BOOLEAN IsPeiDb;\r | |
293 | \r | |
294 | ASSERT (PcdInfo != NULL);\r | |
295 | \r | |
296 | Status = EFI_NOT_FOUND;\r | |
297 | PeiExMapTableEmpty = mPeiExMapTableEmpty;\r | |
298 | DxeExMapTableEmpty = mDxeExMapTableEmpty;\r | |
299 | \r | |
300 | if (Guid == NULL) {\r | |
301 | if (((TokenNumber + 1 > mPeiNexTokenCount + 1) && (TokenNumber + 1 <= mPeiLocalTokenCount + 1)) ||\r | |
302 | ((TokenNumber + 1 > (mPeiLocalTokenCount + mDxeNexTokenCount + 1)))) {\r | |
303 | return EFI_NOT_FOUND;\r | |
304 | } else if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
305 | //\r | |
306 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
307 | // PcdSize to 0 and PcdName to NULL for default Token Space.\r | |
308 | //\r | |
309 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
310 | PcdInfo->PcdSize = 0;\r | |
311 | PcdInfo->PcdName = NULL;\r | |
312 | } else {\r | |
313 | PcdInfo->PcdSize = DxePcdGetSize (TokenNumber);\r | |
314 | IsPeiDb = FALSE;\r | |
315 | if ((TokenNumber + 1 <= mPeiNexTokenCount + 1)) {\r | |
316 | IsPeiDb = TRUE;\r | |
317 | }\r | |
318 | LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber);\r | |
319 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
320 | PcdInfo->PcdName = GetPcdName (FALSE, IsPeiDb, TokenNumber);\r | |
321 | }\r | |
322 | return EFI_SUCCESS;\r | |
323 | }\r | |
324 | \r | |
325 | if (PeiExMapTableEmpty && DxeExMapTableEmpty) {\r | |
326 | return EFI_NOT_FOUND;\r | |
327 | }\r | |
328 | \r | |
329 | if (!PeiExMapTableEmpty) {\r | |
330 | Status = ExGetPcdInfo (\r | |
331 | TRUE,\r | |
332 | Guid,\r | |
333 | TokenNumber,\r | |
334 | PcdInfo\r | |
335 | );\r | |
336 | }\r | |
337 | \r | |
338 | if (Status == EFI_SUCCESS) {\r | |
339 | return Status;\r | |
340 | }\r | |
341 | \r | |
342 | if (!DxeExMapTableEmpty) {\r | |
343 | Status = ExGetPcdInfo (\r | |
344 | FALSE,\r | |
345 | Guid,\r | |
346 | TokenNumber,\r | |
347 | PcdInfo\r | |
348 | );\r | |
349 | }\r | |
350 | \r | |
351 | return Status;\r | |
352 | }\r | |
353 | \r | |
354 | /**\r | |
355 | Get the PCD entry pointer in PCD database.\r | |
356 | \r | |
357 | This routine will visit PCD database to find the PCD entry according to given\r | |
358 | token number. The given token number is autogened by build tools and it will be \r | |
359 | translated to local token number. Local token number contains PCD's type and \r | |
360 | offset of PCD entry in PCD database.\r | |
361 | \r | |
362 | @param TokenNumber Token's number, it is autogened by build tools\r | |
363 | @param GetSize The size of token's value\r | |
364 | \r | |
365 | @return PCD entry pointer in PCD database\r | |
366 | \r | |
367 | **/\r | |
368 | VOID *\r | |
369 | GetWorker (\r | |
370 | IN UINTN TokenNumber,\r | |
371 | IN UINTN GetSize\r | |
372 | )\r | |
373 | {\r | |
374 | EFI_GUID *GuidTable;\r | |
375 | UINT8 *StringTable;\r | |
376 | EFI_GUID *Guid;\r | |
377 | UINT16 *Name;\r | |
378 | VARIABLE_HEAD *VariableHead;\r | |
379 | UINT8 *VaraiableDefaultBuffer;\r | |
380 | UINT8 *Data;\r | |
381 | VPD_HEAD *VpdHead;\r | |
382 | UINT8 *PcdDb;\r | |
383 | VOID *RetPtr;\r | |
384 | UINTN TmpTokenNumber;\r | |
385 | UINTN DataSize;\r | |
386 | EFI_STATUS Status;\r | |
387 | UINT32 LocalTokenNumber;\r | |
388 | UINT32 Offset;\r | |
389 | STRING_HEAD StringTableIdx; \r | |
390 | BOOLEAN IsPeiDb;\r | |
391 | \r | |
392 | //\r | |
393 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
394 | //\r | |
395 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
396 | \r | |
397 | RetPtr = NULL;\r | |
398 | \r | |
399 | ASSERT (TokenNumber > 0);\r | |
400 | //\r | |
401 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
402 | // We have to decrement TokenNumber by 1 to make it usable\r | |
403 | // as the array index.\r | |
404 | //\r | |
405 | TokenNumber--;\r | |
406 | \r | |
407 | TmpTokenNumber = TokenNumber;\r | |
408 | \r | |
409 | //\r | |
410 | // EBC compiler is very choosy. It may report warning about comparison\r | |
411 | // between UINTN and 0 . So we add 1 in each size of the \r | |
412 | // comparison.\r | |
413 | //\r | |
414 | ASSERT (TokenNumber + 1 < mPcdTotalTokenCount + 1);\r | |
415 | \r | |
416 | ASSERT ((GetSize == DxePcdGetSize (TokenNumber + 1)) || (GetSize == 0));\r | |
417 | \r | |
418 | // EBC compiler is very choosy. It may report warning about comparison\r | |
419 | // between UINTN and 0 . So we add 1 in each size of the \r | |
420 | // comparison.\r | |
421 | IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < mPeiLocalTokenCount + 1) ? TRUE : FALSE);\r | |
422 | \r | |
423 | LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber + 1);\r | |
424 | \r | |
425 | PcdDb = IsPeiDb ? ((UINT8 *) mPcdDatabase.PeiDb) : ((UINT8 *) mPcdDatabase.DxeDb);\r | |
426 | \r | |
427 | if (IsPeiDb) {\r | |
428 | StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->StringTableOffset);\r | |
429 | } else {\r | |
430 | StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->StringTableOffset);\r | |
431 | }\r | |
432 | \r | |
433 | \r | |
434 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
435 | \r | |
436 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
437 | case PCD_TYPE_VPD:\r | |
438 | VpdHead = (VPD_HEAD *) ((UINT8 *) PcdDb + Offset);\r | |
439 | RetPtr = (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r | |
440 | \r | |
441 | break;\r | |
442 | \r | |
443 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r | |
444 | case PCD_TYPE_HII:\r | |
445 | if (IsPeiDb) {\r | |
446 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r | |
447 | } else {\r | |
448 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r | |
449 | }\r | |
450 | \r | |
451 | VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r | |
452 | Guid = GuidTable + VariableHead->GuidTableIndex;\r | |
453 | Name = (UINT16*)(StringTable + VariableHead->StringIndex);\r | |
454 | \r | |
455 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r | |
456 | //\r | |
457 | // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of \r | |
458 | // string array in string table.\r | |
459 | //\r | |
460 | StringTableIdx = *(STRING_HEAD*)((UINT8 *) PcdDb + VariableHead->DefaultValueOffset); \r | |
461 | VaraiableDefaultBuffer = (UINT8 *) (StringTable + StringTableIdx); \r | |
462 | } else {\r | |
463 | VaraiableDefaultBuffer = (UINT8 *) PcdDb + VariableHead->DefaultValueOffset;\r | |
464 | }\r | |
465 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
466 | if (Status == EFI_SUCCESS) {\r | |
467 | if (DataSize >= (VariableHead->Offset + GetSize)) {\r | |
468 | if (GetSize == 0) {\r | |
469 | //\r | |
470 | // It is a pointer type. So get the MaxSize reserved for\r | |
471 | // this PCD entry.\r | |
472 | //\r | |
473 | GetPtrTypeSize (TmpTokenNumber, &GetSize);\r | |
474 | if (GetSize > (DataSize - VariableHead->Offset)) {\r | |
475 | //\r | |
476 | // Use actual valid size.\r | |
477 | //\r | |
478 | GetSize = DataSize - VariableHead->Offset;\r | |
479 | }\r | |
480 | }\r | |
481 | //\r | |
482 | // If the operation is successful, we copy the data\r | |
483 | // to the default value buffer in the PCD Database.\r | |
484 | // So that we can free the Data allocated in GetHiiVariable.\r | |
485 | //\r | |
486 | CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize);\r | |
487 | }\r | |
488 | FreePool (Data);\r | |
489 | }\r | |
490 | RetPtr = (VOID *) VaraiableDefaultBuffer;\r | |
491 | break;\r | |
492 | \r | |
493 | case PCD_TYPE_STRING:\r | |
494 | StringTableIdx = *(STRING_HEAD*)((UINT8 *) PcdDb + Offset);\r | |
495 | RetPtr = (VOID *) (StringTable + StringTableIdx);\r | |
496 | break;\r | |
497 | \r | |
498 | case PCD_TYPE_DATA:\r | |
499 | RetPtr = (VOID *) ((UINT8 *) PcdDb + Offset);\r | |
500 | break;\r | |
501 | \r | |
502 | default:\r | |
503 | ASSERT (FALSE);\r | |
504 | break;\r | |
505 | \r | |
506 | }\r | |
507 | \r | |
508 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
509 | \r | |
510 | return RetPtr;\r | |
511 | \r | |
512 | }\r | |
513 | \r | |
514 | /**\r | |
515 | Register the callback function for a PCD entry.\r | |
516 | \r | |
517 | This routine will register a callback function to a PCD entry by given token number\r | |
518 | and token space guid.\r | |
519 | \r | |
520 | @param TokenNumber PCD token's number, it is autogened by build tools.\r | |
521 | @param Guid PCD token space's guid, \r | |
522 | if not NULL, this PCD is dynamicEx type PCD.\r | |
523 | @param CallBackFunction Callback function pointer\r | |
524 | \r | |
525 | @return EFI_SUCCESS Always success for registering callback function.\r | |
526 | \r | |
527 | **/\r | |
528 | EFI_STATUS\r | |
529 | DxeRegisterCallBackWorker (\r | |
530 | IN UINTN TokenNumber,\r | |
531 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
532 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r | |
533 | )\r | |
534 | {\r | |
535 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
536 | LIST_ENTRY *ListHead;\r | |
537 | LIST_ENTRY *ListNode;\r | |
538 | \r | |
539 | if (Guid != NULL) {\r | |
540 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r | |
541 | }\r | |
542 | \r | |
543 | //\r | |
544 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
545 | // We have to decrement TokenNumber by 1 to make it usable\r | |
546 | // as the array index of mCallbackFnTable[].\r | |
547 | //\r | |
548 | ListHead = &mCallbackFnTable[TokenNumber - 1];\r | |
549 | ListNode = GetFirstNode (ListHead);\r | |
550 | \r | |
551 | while (ListNode != ListHead) {\r | |
552 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
553 | \r | |
554 | if (FnTableEntry->CallbackFn == CallBackFunction) {\r | |
555 | //\r | |
556 | // We only allow a Callback function to be register once\r | |
557 | // for a TokenNumber. So just return EFI_SUCCESS\r | |
558 | //\r | |
559 | return EFI_SUCCESS;\r | |
560 | }\r | |
561 | ListNode = GetNextNode (ListHead, ListNode);\r | |
562 | }\r | |
563 | \r | |
564 | FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY));\r | |
565 | ASSERT (FnTableEntry != NULL);\r | |
566 | \r | |
567 | FnTableEntry->CallbackFn = CallBackFunction;\r | |
568 | InsertTailList (ListHead, &FnTableEntry->Node);\r | |
569 | \r | |
570 | return EFI_SUCCESS;\r | |
571 | }\r | |
572 | \r | |
573 | /**\r | |
574 | UnRegister the callback function for a PCD entry.\r | |
575 | \r | |
576 | This routine will unregister a callback function to a PCD entry by given token number\r | |
577 | and token space guid.\r | |
578 | \r | |
579 | @param TokenNumber PCD token's number, it is autogened by build tools.\r | |
580 | @param Guid PCD token space's guid.\r | |
581 | if not NULL, this PCD is dynamicEx type PCD.\r | |
582 | @param CallBackFunction Callback function pointer\r | |
583 | \r | |
584 | @retval EFI_SUCCESS Callback function is success to be unregister.\r | |
585 | @retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number.\r | |
586 | **/\r | |
587 | EFI_STATUS\r | |
588 | DxeUnRegisterCallBackWorker (\r | |
589 | IN UINTN TokenNumber,\r | |
590 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
591 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r | |
592 | )\r | |
593 | {\r | |
594 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
595 | LIST_ENTRY *ListHead;\r | |
596 | LIST_ENTRY *ListNode;\r | |
597 | \r | |
598 | if (Guid != NULL) {\r | |
599 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r | |
600 | }\r | |
601 | \r | |
602 | //\r | |
603 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
604 | // We have to decrement TokenNumber by 1 to make it usable\r | |
605 | // as the array index of mCallbackFnTable[].\r | |
606 | //\r | |
607 | ListHead = &mCallbackFnTable[TokenNumber - 1];\r | |
608 | ListNode = GetFirstNode (ListHead);\r | |
609 | \r | |
610 | while (ListNode != ListHead) {\r | |
611 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
612 | \r | |
613 | if (FnTableEntry->CallbackFn == CallBackFunction) {\r | |
614 | //\r | |
615 | // We only allow a Callback function to be register once\r | |
616 | // for a TokenNumber. So we can safely remove the Node from\r | |
617 | // the Link List and return EFI_SUCCESS.\r | |
618 | //\r | |
619 | RemoveEntryList (ListNode);\r | |
620 | FreePool (FnTableEntry);\r | |
621 | \r | |
622 | return EFI_SUCCESS;\r | |
623 | }\r | |
624 | ListNode = GetNextNode (ListHead, ListNode);\r | |
625 | }\r | |
626 | \r | |
627 | return EFI_INVALID_PARAMETER;\r | |
628 | }\r | |
629 | \r | |
630 | /**\r | |
631 | Get next token number in given token space.\r | |
632 | \r | |
633 | This routine is used for dynamicEx type PCD. It will firstly scan token space\r | |
634 | table to get token space according to given token space guid. Then scan given \r | |
635 | token number in found token space, if found, then return next token number in \r | |
636 | this token space.\r | |
637 | \r | |
638 | @param Guid Token space guid. Next token number will be scaned in \r | |
639 | this token space.\r | |
640 | @param TokenNumber Token number. \r | |
641 | If PCD_INVALID_TOKEN_NUMBER, return first token number in \r | |
642 | token space table.\r | |
643 | If not PCD_INVALID_TOKEN_NUMBER, return next token number\r | |
644 | in token space table.\r | |
645 | @param GuidTable Token space guid table. It will be used for scan token space\r | |
646 | by given token space guid.\r | |
647 | @param SizeOfGuidTable The size of guid table.\r | |
648 | @param ExMapTable DynamicEx token number mapping table.\r | |
649 | @param SizeOfExMapTable The size of dynamicEx token number mapping table.\r | |
650 | \r | |
651 | @retval EFI_NOT_FOUND Can not given token space or token number.\r | |
652 | @retval EFI_SUCCESS Success to get next token number.\r | |
653 | \r | |
654 | **/\r | |
655 | EFI_STATUS\r | |
656 | ExGetNextTokeNumber (\r | |
657 | IN CONST EFI_GUID *Guid,\r | |
658 | IN OUT UINTN *TokenNumber,\r | |
659 | IN EFI_GUID *GuidTable,\r | |
660 | IN UINTN SizeOfGuidTable,\r | |
661 | IN DYNAMICEX_MAPPING *ExMapTable,\r | |
662 | IN UINTN SizeOfExMapTable\r | |
663 | )\r | |
664 | {\r | |
665 | EFI_GUID *MatchGuid;\r | |
666 | UINTN Index;\r | |
667 | UINTN GuidTableIdx;\r | |
668 | BOOLEAN Found;\r | |
669 | UINTN ExMapTableCount;\r | |
670 | \r | |
671 | //\r | |
672 | // Scan token space guid \r | |
673 | // \r | |
674 | MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid);\r | |
675 | if (MatchGuid == NULL) {\r | |
676 | return EFI_NOT_FOUND;\r | |
677 | }\r | |
678 | \r | |
679 | //\r | |
680 | // Find the token space table in dynamicEx mapping table.\r | |
681 | //\r | |
682 | Found = FALSE;\r | |
683 | GuidTableIdx = MatchGuid - GuidTable;\r | |
684 | ExMapTableCount = SizeOfExMapTable / sizeof(ExMapTable[0]);\r | |
685 | for (Index = 0; Index < ExMapTableCount; Index++) {\r | |
686 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
687 | Found = TRUE;\r | |
688 | break;\r | |
689 | }\r | |
690 | }\r | |
691 | \r | |
692 | if (Found) {\r | |
693 | //\r | |
694 | // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first\r | |
695 | // token number in found token space.\r | |
696 | //\r | |
697 | if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
698 | *TokenNumber = ExMapTable[Index].ExTokenNumber;\r | |
699 | return EFI_SUCCESS;\r | |
700 | }\r | |
701 | \r | |
702 | for ( ; Index < ExMapTableCount; Index++) {\r | |
703 | if (ExMapTable[Index].ExTokenNumber == *TokenNumber) {\r | |
704 | break;\r | |
705 | }\r | |
706 | }\r | |
707 | \r | |
708 | while (Index < ExMapTableCount) {\r | |
709 | Index++;\r | |
710 | if (Index == ExMapTableCount) {\r | |
711 | //\r | |
712 | // Exceed the length of ExMap Table\r | |
713 | //\r | |
714 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r | |
715 | return EFI_NOT_FOUND;\r | |
716 | } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
717 | //\r | |
718 | // Found the next match\r | |
719 | //\r | |
720 | *TokenNumber = ExMapTable[Index].ExTokenNumber;\r | |
721 | return EFI_SUCCESS;\r | |
722 | }\r | |
723 | }\r | |
724 | }\r | |
725 | \r | |
726 | return EFI_NOT_FOUND;\r | |
727 | }\r | |
728 | \r | |
729 | /**\r | |
730 | Find the PCD database.\r | |
731 | \r | |
732 | @retval The base address of external PCD database binary.\r | |
733 | @retval NULL Return NULL if not find.\r | |
734 | **/\r | |
735 | DXE_PCD_DATABASE *\r | |
736 | LocateExPcdBinary (\r | |
737 | VOID\r | |
738 | ) \r | |
739 | {\r | |
740 | DXE_PCD_DATABASE *DxePcdDbBinary;\r | |
741 | UINTN DxePcdDbSize;\r | |
742 | EFI_STATUS Status;\r | |
743 | \r | |
744 | DxePcdDbBinary = NULL;\r | |
745 | //\r | |
746 | // Search the External Pcd database from one section of current FFS, \r | |
747 | // and read it to memory\r | |
748 | //\r | |
749 | Status = GetSectionFromFfs (\r | |
750 | EFI_SECTION_RAW,\r | |
751 | 0,\r | |
752 | (VOID **) &DxePcdDbBinary,\r | |
753 | &DxePcdDbSize\r | |
754 | );\r | |
755 | ASSERT_EFI_ERROR (Status);\r | |
756 | \r | |
757 | //\r | |
758 | // Check the first bytes (Header Signature Guid) and build version.\r | |
759 | //\r | |
760 | if (!CompareGuid ((VOID *)DxePcdDbBinary, &gPcdDataBaseSignatureGuid) ||\r | |
761 | (DxePcdDbBinary->BuildVersion != PCD_SERVICE_DXE_VERSION)) {\r | |
762 | ASSERT (FALSE);\r | |
763 | }\r | |
764 | \r | |
765 | return DxePcdDbBinary;\r | |
766 | }\r | |
767 | \r | |
768 | /**\r | |
769 | Initialize the PCD database in DXE phase.\r | |
770 | \r | |
771 | PCD database in DXE phase also contains PCD database in PEI phase which is copied\r | |
772 | from GUID Hob.\r | |
773 | \r | |
774 | **/\r | |
775 | VOID\r | |
776 | BuildPcdDxeDataBase (\r | |
777 | VOID\r | |
778 | )\r | |
779 | {\r | |
780 | PEI_PCD_DATABASE *PeiDatabase;\r | |
781 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
782 | UINTN Index;\r | |
783 | UINT32 PcdDxeDbLen;\r | |
784 | VOID *PcdDxeDb;\r | |
785 | \r | |
786 | //\r | |
787 | // Assign PCD Entries with default value to PCD DATABASE\r | |
788 | //\r | |
789 | mPcdDatabase.DxeDb = LocateExPcdBinary ();\r | |
790 | ASSERT(mPcdDatabase.DxeDb != NULL);\r | |
791 | PcdDxeDbLen = mPcdDatabase.DxeDb->Length + mPcdDatabase.DxeDb->UninitDataBaseSize;\r | |
792 | PcdDxeDb = AllocateZeroPool (PcdDxeDbLen);\r | |
793 | ASSERT (PcdDxeDb != NULL);\r | |
794 | CopyMem (PcdDxeDb, mPcdDatabase.DxeDb, mPcdDatabase.DxeDb->Length);\r | |
795 | FreePool (mPcdDatabase.DxeDb);\r | |
796 | mPcdDatabase.DxeDb = PcdDxeDb;\r | |
797 | \r | |
798 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
799 | if (GuidHob != NULL) {\r | |
800 | \r | |
801 | // \r | |
802 | // If no PEIMs use dynamic Pcd Entry, the Pcd Service PEIM\r | |
803 | // should not be included at all. So the GuidHob could\r | |
804 | // be NULL. If it is NULL, we just copy over the DXE Default\r | |
805 | // Value to PCD Database.\r | |
806 | //\r | |
807 | \r | |
808 | PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
809 | //\r | |
810 | // Assign PCD Entries refereneced in PEI phase to PCD DATABASE\r | |
811 | //\r | |
812 | mPcdDatabase.PeiDb = PeiDatabase;\r | |
813 | //\r | |
814 | // Inherit the SystemSkuId from PEI phase.\r | |
815 | //\r | |
816 | mPcdDatabase.DxeDb->SystemSkuId = mPcdDatabase.PeiDb->SystemSkuId;\r | |
817 | } else {\r | |
818 | mPcdDatabase.PeiDb = AllocateZeroPool (sizeof (PEI_PCD_DATABASE));\r | |
819 | ASSERT(mPcdDatabase.PeiDb != NULL);\r | |
820 | }\r | |
821 | \r | |
822 | //\r | |
823 | // Initialized the external PCD database local variables\r | |
824 | //\r | |
825 | mPeiLocalTokenCount = mPcdDatabase.PeiDb->LocalTokenCount;\r | |
826 | mDxeLocalTokenCount = mPcdDatabase.DxeDb->LocalTokenCount;\r | |
827 | \r | |
828 | mPeiExMapppingTableSize = mPcdDatabase.PeiDb->ExTokenCount * sizeof (DYNAMICEX_MAPPING);\r | |
829 | mDxeExMapppingTableSize = mPcdDatabase.DxeDb->ExTokenCount * sizeof (DYNAMICEX_MAPPING);\r | |
830 | mPeiGuidTableSize = mPcdDatabase.PeiDb->GuidTableCount * sizeof(GUID);\r | |
831 | mDxeGuidTableSize = mPcdDatabase.DxeDb->GuidTableCount * sizeof (GUID);\r | |
832 | \r | |
833 | mPcdTotalTokenCount = mPeiLocalTokenCount + mDxeLocalTokenCount;\r | |
834 | mPeiNexTokenCount = mPeiLocalTokenCount - mPcdDatabase.PeiDb->ExTokenCount;\r | |
835 | mDxeNexTokenCount = mDxeLocalTokenCount - mPcdDatabase.DxeDb->ExTokenCount; \r | |
836 | \r | |
837 | mPeiExMapTableEmpty = (mPcdDatabase.PeiDb->ExTokenCount == 0) ? TRUE : FALSE;\r | |
838 | mDxeExMapTableEmpty = (mPcdDatabase.DxeDb->ExTokenCount == 0) ? TRUE : FALSE;\r | |
839 | mPeiDatabaseEmpty = (mPeiLocalTokenCount == 0) ? TRUE : FALSE;\r | |
840 | \r | |
841 | TmpTokenSpaceBufferCount = mPcdDatabase.PeiDb->ExTokenCount + mPcdDatabase.DxeDb->ExTokenCount;\r | |
842 | TmpTokenSpaceBuffer = (EFI_GUID **)AllocateZeroPool(TmpTokenSpaceBufferCount * sizeof (EFI_GUID *));\r | |
843 | \r | |
844 | //\r | |
845 | // Initialized the Callback Function Table\r | |
846 | //\r | |
847 | mCallbackFnTable = AllocateZeroPool (mPcdTotalTokenCount * sizeof (LIST_ENTRY));\r | |
848 | ASSERT(mCallbackFnTable != NULL);\r | |
849 | \r | |
850 | //\r | |
851 | // EBC compiler is very choosy. It may report warning about comparison\r | |
852 | // between UINTN and 0 . So we add 1 in each size of the \r | |
853 | // comparison.\r | |
854 | //\r | |
855 | for (Index = 0; Index + 1 < mPcdTotalTokenCount + 1; Index++) {\r | |
856 | InitializeListHead (&mCallbackFnTable[Index]);\r | |
857 | }\r | |
858 | }\r | |
859 | \r | |
860 | /**\r | |
861 | Get Variable which contains HII type PCD entry.\r | |
862 | \r | |
863 | @param VariableGuid Variable's guid\r | |
864 | @param VariableName Variable's unicode name string\r | |
865 | @param VariableData Variable's data pointer, \r | |
866 | @param VariableSize Variable's size.\r | |
867 | \r | |
868 | @return the status of gRT->GetVariable\r | |
869 | **/\r | |
870 | EFI_STATUS\r | |
871 | GetHiiVariable (\r | |
872 | IN EFI_GUID *VariableGuid,\r | |
873 | IN UINT16 *VariableName,\r | |
874 | OUT UINT8 **VariableData,\r | |
875 | OUT UINTN *VariableSize\r | |
876 | )\r | |
877 | {\r | |
878 | UINTN Size;\r | |
879 | EFI_STATUS Status;\r | |
880 | UINT8 *Buffer;\r | |
881 | \r | |
882 | Size = 0;\r | |
883 | Buffer = NULL;\r | |
884 | \r | |
885 | //\r | |
886 | // Firstly get the real size of HII variable\r | |
887 | //\r | |
888 | Status = gRT->GetVariable (\r | |
889 | (UINT16 *)VariableName,\r | |
890 | VariableGuid,\r | |
891 | NULL,\r | |
892 | &Size,\r | |
893 | Buffer\r | |
894 | );\r | |
895 | \r | |
896 | //\r | |
897 | // Allocate buffer to hold whole variable data according to variable size.\r | |
898 | //\r | |
899 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
900 | Buffer = (UINT8 *) AllocatePool (Size);\r | |
901 | \r | |
902 | ASSERT (Buffer != NULL);\r | |
903 | \r | |
904 | Status = gRT->GetVariable (\r | |
905 | VariableName,\r | |
906 | VariableGuid,\r | |
907 | NULL,\r | |
908 | &Size,\r | |
909 | Buffer\r | |
910 | );\r | |
911 | \r | |
912 | ASSERT (Status == EFI_SUCCESS);\r | |
913 | *VariableData = Buffer;\r | |
914 | *VariableSize = Size;\r | |
915 | } else {\r | |
916 | //\r | |
917 | // Use Default Data only when variable is not found. \r | |
918 | // For other error status, correct data can't be got, and trig ASSERT().\r | |
919 | //\r | |
920 | ASSERT (Status == EFI_NOT_FOUND);\r | |
921 | }\r | |
922 | \r | |
923 | return Status;\r | |
924 | }\r | |
925 | \r | |
926 | /**\r | |
927 | Find the local token number according to system SKU ID.\r | |
928 | \r | |
929 | @param LocalTokenNumber PCD token number\r | |
930 | @param Size The size of PCD entry.\r | |
931 | @param IsPeiDb If TRUE, the PCD entry is initialized in PEI phase.\r | |
932 | If False, the PCD entry is initialized in DXE phase.\r | |
933 | \r | |
934 | @return Token number according to system SKU ID.\r | |
935 | \r | |
936 | **/\r | |
937 | UINT32\r | |
938 | GetSkuEnabledTokenNumber (\r | |
939 | UINT32 LocalTokenNumber,\r | |
940 | UINTN Size,\r | |
941 | BOOLEAN IsPeiDb\r | |
942 | ) \r | |
943 | {\r | |
944 | SKU_HEAD *SkuHead;\r | |
945 | SKU_ID *SkuIdTable;\r | |
946 | INTN Index;\r | |
947 | UINT8 *Value;\r | |
948 | UINT8 *PcdDb;\r | |
949 | BOOLEAN FoundSku;\r | |
950 | \r | |
951 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r | |
952 | \r | |
953 | PcdDb = IsPeiDb ? (UINT8 *) mPcdDatabase.PeiDb : (UINT8 *) mPcdDatabase.DxeDb;\r | |
954 | \r | |
955 | SkuHead = (SKU_HEAD *) (PcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
956 | Value = (UINT8 *) (PcdDb + SkuHead->SkuDataStartOffset); \r | |
957 | \r | |
958 | SkuIdTable = (SKU_ID *)(PcdDb + SkuHead->SkuIdTableOffset);\r | |
959 | //\r | |
960 | // Find the current system's SKU ID entry in SKU ID table.\r | |
961 | //\r | |
962 | FoundSku = FALSE;\r | |
963 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r | |
964 | if (mPcdDatabase.DxeDb->SystemSkuId == SkuIdTable[Index + 1]) {\r | |
965 | FoundSku = TRUE;\r | |
966 | break;\r | |
967 | }\r | |
968 | }\r | |
969 | \r | |
970 | //\r | |
971 | // Find the default SKU ID entry in SKU ID table.\r | |
972 | //\r | |
973 | \r | |
974 | if(!FoundSku) {\r | |
975 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r | |
976 | if (0 == SkuIdTable[Index + 1]) {\r | |
977 | break;\r | |
978 | }\r | |
979 | }\r | |
980 | }\r | |
981 | ASSERT (Index < SkuIdTable[0]);\r | |
982 | \r | |
983 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
984 | case PCD_TYPE_VPD:\r | |
985 | Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);\r | |
986 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_VPD);\r | |
987 | \r | |
988 | case PCD_TYPE_HII:\r | |
989 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r | |
990 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII);\r | |
991 | \r | |
992 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r | |
993 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r | |
994 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII | PCD_TYPE_STRING);\r | |
995 | \r | |
996 | case PCD_TYPE_STRING:\r | |
997 | Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);\r | |
998 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_STRING);\r | |
999 | \r | |
1000 | case PCD_TYPE_DATA:\r | |
1001 | Value += Size * Index;\r | |
1002 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_DATA);\r | |
1003 | \r | |
1004 | default:\r | |
1005 | ASSERT (FALSE);\r | |
1006 | }\r | |
1007 | \r | |
1008 | ASSERT (FALSE);\r | |
1009 | \r | |
1010 | return 0;\r | |
1011 | \r | |
1012 | }\r | |
1013 | \r | |
1014 | /**\r | |
1015 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r | |
1016 | has registered callback function.\r | |
1017 | \r | |
1018 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r | |
1019 | type PCD.\r | |
1020 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
1021 | PCD.\r | |
1022 | @param TokenNumber PCD token number generated by build tools.\r | |
1023 | @param Data Value want to be set for this PCD entry\r | |
1024 | @param Size The size of value\r | |
1025 | \r | |
1026 | **/\r | |
1027 | VOID\r | |
1028 | InvokeCallbackOnSet (\r | |
1029 | UINT32 ExTokenNumber,\r | |
1030 | CONST EFI_GUID *Guid, OPTIONAL\r | |
1031 | UINTN TokenNumber,\r | |
1032 | VOID *Data,\r | |
1033 | UINTN Size\r | |
1034 | )\r | |
1035 | {\r | |
1036 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
1037 | LIST_ENTRY *ListHead;\r | |
1038 | LIST_ENTRY *ListNode;\r | |
1039 | \r | |
1040 | //\r | |
1041 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
1042 | // We have to decrement TokenNumber by 1 to make it usable\r | |
1043 | // as the array index of mCallbackFnTable[].\r | |
1044 | //\r | |
1045 | ListHead = &mCallbackFnTable[TokenNumber - 1];\r | |
1046 | ListNode = GetFirstNode (ListHead);\r | |
1047 | \r | |
1048 | while (ListNode != ListHead) {\r | |
1049 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE (ListNode, CALLBACK_FN_ENTRY, Node);\r | |
1050 | \r | |
1051 | FnTableEntry->CallbackFn(Guid, \r | |
1052 | (Guid == NULL) ? TokenNumber : ExTokenNumber,\r | |
1053 | Data,\r | |
1054 | Size);\r | |
1055 | \r | |
1056 | ListNode = GetNextNode (ListHead, ListNode);\r | |
1057 | }\r | |
1058 | \r | |
1059 | return;\r | |
1060 | }\r | |
1061 | \r | |
1062 | \r | |
1063 | /**\r | |
1064 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
1065 | \r | |
1066 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
1067 | @param Data Value want to be set for PCD entry\r | |
1068 | @param Size Size of value.\r | |
1069 | \r | |
1070 | @return status of SetWorker.\r | |
1071 | \r | |
1072 | **/\r | |
1073 | EFI_STATUS\r | |
1074 | SetValueWorker (\r | |
1075 | IN UINTN TokenNumber,\r | |
1076 | IN VOID *Data,\r | |
1077 | IN UINTN Size\r | |
1078 | )\r | |
1079 | {\r | |
1080 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
1081 | }\r | |
1082 | \r | |
1083 | \r | |
1084 | /**\r | |
1085 | Set value for an PCD entry\r | |
1086 | \r | |
1087 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
1088 | @param Data Value want to be set for PCD entry\r | |
1089 | @param Size Size of value.\r | |
1090 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
1091 | If False, the type of PCD entry's value is not Pointer.\r | |
1092 | \r | |
1093 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
1094 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
1095 | @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database. \r | |
1096 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r | |
1097 | range of UINT8, UINT16, UINT32, UINT64\r | |
1098 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r | |
1099 | **/\r | |
1100 | EFI_STATUS\r | |
1101 | SetWorker (\r | |
1102 | IN UINTN TokenNumber,\r | |
1103 | IN VOID *Data,\r | |
1104 | IN OUT UINTN *Size,\r | |
1105 | IN BOOLEAN PtrType\r | |
1106 | )\r | |
1107 | {\r | |
1108 | BOOLEAN IsPeiDb;\r | |
1109 | UINT32 LocalTokenNumber;\r | |
1110 | EFI_GUID *GuidTable;\r | |
1111 | UINT8 *StringTable;\r | |
1112 | EFI_GUID *Guid;\r | |
1113 | UINT16 *Name;\r | |
1114 | UINTN VariableOffset;\r | |
1115 | VOID *InternalData;\r | |
1116 | VARIABLE_HEAD *VariableHead;\r | |
1117 | UINTN Offset;\r | |
1118 | UINT8 *PcdDb;\r | |
1119 | EFI_STATUS Status;\r | |
1120 | UINTN MaxSize;\r | |
1121 | UINTN TmpTokenNumber;\r | |
1122 | \r | |
1123 | //\r | |
1124 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
1125 | // We have to decrement TokenNumber by 1 to make it usable\r | |
1126 | // as the array index.\r | |
1127 | //\r | |
1128 | TokenNumber--;\r | |
1129 | \r | |
1130 | TmpTokenNumber = TokenNumber;\r | |
1131 | \r | |
1132 | //\r | |
1133 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1134 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1135 | // comparison.\r | |
1136 | //\r | |
1137 | ASSERT (TokenNumber + 1 < mPcdTotalTokenCount + 1);\r | |
1138 | \r | |
1139 | if (PtrType) {\r | |
1140 | //\r | |
1141 | // Get MaxSize first, then check new size with max buffer size.\r | |
1142 | //\r | |
1143 | GetPtrTypeSize (TokenNumber, &MaxSize);\r | |
1144 | if (*Size > MaxSize) {\r | |
1145 | *Size = MaxSize;\r | |
1146 | return EFI_INVALID_PARAMETER;\r | |
1147 | }\r | |
1148 | } else {\r | |
1149 | if (*Size != DxePcdGetSize (TokenNumber + 1)) {\r | |
1150 | return EFI_INVALID_PARAMETER;\r | |
1151 | }\r | |
1152 | }\r | |
1153 | \r | |
1154 | //\r | |
1155 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1156 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1157 | // comparison.\r | |
1158 | //\r | |
1159 | if ((TokenNumber + 1 < mPeiNexTokenCount + 1) ||\r | |
1160 | (TokenNumber + 1 >= mPeiLocalTokenCount + 1 && TokenNumber + 1 < (mPeiLocalTokenCount + mDxeNexTokenCount + 1))) {\r | |
1161 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r | |
1162 | }\r | |
1163 | \r | |
1164 | //\r | |
1165 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
1166 | //\r | |
1167 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
1168 | \r | |
1169 | //\r | |
1170 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1171 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1172 | // comparison.\r | |
1173 | //\r | |
1174 | IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < mPeiLocalTokenCount + 1) ? TRUE : FALSE);\r | |
1175 | \r | |
1176 | LocalTokenNumber = GetLocalTokenNumber (IsPeiDb, TokenNumber + 1);\r | |
1177 | \r | |
1178 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
1179 | \r | |
1180 | PcdDb = IsPeiDb ? ((UINT8 *) mPcdDatabase.PeiDb) : ((UINT8 *) mPcdDatabase.DxeDb);\r | |
1181 | \r | |
1182 | if (IsPeiDb) {\r | |
1183 | StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->StringTableOffset);\r | |
1184 | } else {\r | |
1185 | StringTable = (UINT8 *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->StringTableOffset);\r | |
1186 | }\r | |
1187 | \r | |
1188 | \r | |
1189 | InternalData = PcdDb + Offset;\r | |
1190 | \r | |
1191 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
1192 | case PCD_TYPE_VPD:\r | |
1193 | ASSERT (FALSE);\r | |
1194 | Status = EFI_INVALID_PARAMETER;\r | |
1195 | break;\r | |
1196 | \r | |
1197 | case PCD_TYPE_STRING:\r | |
1198 | if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
1199 | CopyMem (StringTable + *((STRING_HEAD *)InternalData), Data, *Size);\r | |
1200 | Status = EFI_SUCCESS;\r | |
1201 | } else {\r | |
1202 | Status = EFI_INVALID_PARAMETER;\r | |
1203 | }\r | |
1204 | break;\r | |
1205 | \r | |
1206 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r | |
1207 | case PCD_TYPE_HII:\r | |
1208 | if (PtrType) {\r | |
1209 | if (!SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
1210 | Status = EFI_INVALID_PARAMETER;\r | |
1211 | break;\r | |
1212 | }\r | |
1213 | }\r | |
1214 | \r | |
1215 | if (IsPeiDb) {\r | |
1216 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r | |
1217 | } else {\r | |
1218 | GuidTable = (EFI_GUID *) ((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r | |
1219 | }\r | |
1220 | \r | |
1221 | VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r | |
1222 | \r | |
1223 | Guid = GuidTable + VariableHead->GuidTableIndex;\r | |
1224 | Name = (UINT16*) (StringTable + VariableHead->StringIndex);\r | |
1225 | VariableOffset = VariableHead->Offset;\r | |
1226 | Status = SetHiiVariable (Guid, Name, Data, *Size, VariableOffset);\r | |
1227 | \r | |
1228 | if (EFI_NOT_FOUND == Status) {\r | |
1229 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r | |
1230 | CopyMem (\r | |
1231 | StringTable + *(STRING_HEAD *)(PcdDb + VariableHead->DefaultValueOffset),\r | |
1232 | Data,\r | |
1233 | *Size\r | |
1234 | );\r | |
1235 | } else {\r | |
1236 | CopyMem (PcdDb + VariableHead->DefaultValueOffset, Data, *Size);\r | |
1237 | } \r | |
1238 | Status = EFI_SUCCESS;\r | |
1239 | }\r | |
1240 | break;\r | |
1241 | \r | |
1242 | case PCD_TYPE_DATA:\r | |
1243 | if (PtrType) {\r | |
1244 | if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
1245 | CopyMem (InternalData, Data, *Size);\r | |
1246 | Status = EFI_SUCCESS;\r | |
1247 | } else {\r | |
1248 | Status = EFI_INVALID_PARAMETER;\r | |
1249 | }\r | |
1250 | break;\r | |
1251 | }\r | |
1252 | \r | |
1253 | Status = EFI_SUCCESS;\r | |
1254 | switch (*Size) {\r | |
1255 | case sizeof(UINT8):\r | |
1256 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
1257 | break;\r | |
1258 | \r | |
1259 | case sizeof(UINT16):\r | |
1260 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
1261 | break;\r | |
1262 | \r | |
1263 | case sizeof(UINT32):\r | |
1264 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
1265 | break;\r | |
1266 | \r | |
1267 | case sizeof(UINT64):\r | |
1268 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
1269 | break;\r | |
1270 | \r | |
1271 | default:\r | |
1272 | ASSERT (FALSE);\r | |
1273 | Status = EFI_NOT_FOUND;\r | |
1274 | break;\r | |
1275 | }\r | |
1276 | break;\r | |
1277 | \r | |
1278 | default:\r | |
1279 | ASSERT (FALSE);\r | |
1280 | Status = EFI_NOT_FOUND;\r | |
1281 | break;\r | |
1282 | }\r | |
1283 | \r | |
1284 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
1285 | \r | |
1286 | return Status;\r | |
1287 | }\r | |
1288 | \r | |
1289 | /**\r | |
1290 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
1291 | \r | |
1292 | @param Guid Token space guid for dynamic-ex PCD.\r | |
1293 | @param ExTokenNumber Token number for dynamic-ex PCD.\r | |
1294 | @param GetSize The size of dynamic-ex PCD value.\r | |
1295 | \r | |
1296 | @return PCD entry in PCD database.\r | |
1297 | \r | |
1298 | **/\r | |
1299 | VOID *\r | |
1300 | ExGetWorker (\r | |
1301 | IN CONST EFI_GUID *Guid,\r | |
1302 | IN UINTN ExTokenNumber,\r | |
1303 | IN UINTN GetSize\r | |
1304 | ) \r | |
1305 | {\r | |
1306 | return GetWorker(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber), GetSize);\r | |
1307 | }\r | |
1308 | \r | |
1309 | /**\r | |
1310 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
1311 | \r | |
1312 | @param ExTokenNumber Token number for dynamic-ex PCD.\r | |
1313 | @param Guid Token space guid for dynamic-ex PCD.\r | |
1314 | @param Data Value want to be set.\r | |
1315 | @param SetSize The size of value.\r | |
1316 | \r | |
1317 | @return status of ExSetWorker().\r | |
1318 | \r | |
1319 | **/\r | |
1320 | EFI_STATUS\r | |
1321 | ExSetValueWorker (\r | |
1322 | IN UINTN ExTokenNumber,\r | |
1323 | IN CONST EFI_GUID *Guid,\r | |
1324 | IN VOID *Data,\r | |
1325 | IN UINTN SetSize\r | |
1326 | )\r | |
1327 | {\r | |
1328 | return ExSetWorker (ExTokenNumber, Guid, Data, &SetSize, FALSE);\r | |
1329 | }\r | |
1330 | \r | |
1331 | /**\r | |
1332 | Set value for a dynamic-ex PCD entry.\r | |
1333 | \r | |
1334 | This routine find the local token number according to dynamic-ex PCD's token \r | |
1335 | space guid and token number firstly, and invoke callback function if this PCD\r | |
1336 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
1337 | PCD value.\r | |
1338 | \r | |
1339 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
1340 | @param Guid Token space guid for dynamic-ex PCD.\r | |
1341 | @param Data PCD value want to be set\r | |
1342 | @param SetSize Size of value.\r | |
1343 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
1344 | If FALSE, this PCD entry is not pointer type.\r | |
1345 | \r | |
1346 | @return status of SetWorker().\r | |
1347 | \r | |
1348 | **/\r | |
1349 | EFI_STATUS\r | |
1350 | ExSetWorker (\r | |
1351 | IN UINTN ExTokenNumber,\r | |
1352 | IN CONST EFI_GUID *Guid,\r | |
1353 | IN VOID *Data,\r | |
1354 | IN OUT UINTN *SetSize,\r | |
1355 | IN BOOLEAN PtrType\r | |
1356 | )\r | |
1357 | {\r | |
1358 | UINTN TokenNumber;\r | |
1359 | \r | |
1360 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber);\r | |
1361 | \r | |
1362 | InvokeCallbackOnSet ((UINT32) ExTokenNumber, Guid, TokenNumber, Data, *SetSize);\r | |
1363 | \r | |
1364 | return SetWorker (TokenNumber, Data, SetSize, PtrType);\r | |
1365 | \r | |
1366 | }\r | |
1367 | \r | |
1368 | /**\r | |
1369 | Set value for HII-type PCD.\r | |
1370 | \r | |
1371 | A HII-type PCD's value is stored in a variable. Setting/Getting the value of \r | |
1372 | HII-type PCD is to visit this variable.\r | |
1373 | \r | |
1374 | @param VariableGuid Guid of variable which stored value of a HII-type PCD.\r | |
1375 | @param VariableName Unicode name of variable which stored value of a HII-type PCD.\r | |
1376 | @param Data Value want to be set.\r | |
1377 | @param DataSize Size of value\r | |
1378 | @param Offset Value offset of HII-type PCD in variable.\r | |
1379 | \r | |
1380 | @return status of GetVariable()/SetVariable().\r | |
1381 | \r | |
1382 | **/\r | |
1383 | EFI_STATUS\r | |
1384 | SetHiiVariable (\r | |
1385 | IN EFI_GUID *VariableGuid,\r | |
1386 | IN UINT16 *VariableName,\r | |
1387 | IN CONST VOID *Data,\r | |
1388 | IN UINTN DataSize,\r | |
1389 | IN UINTN Offset\r | |
1390 | )\r | |
1391 | {\r | |
1392 | UINTN Size;\r | |
1393 | VOID *Buffer;\r | |
1394 | EFI_STATUS Status;\r | |
1395 | UINT32 Attribute;\r | |
1396 | UINTN SetSize;\r | |
1397 | \r | |
1398 | Size = 0;\r | |
1399 | SetSize = 0;\r | |
1400 | \r | |
1401 | //\r | |
1402 | // Try to get original variable size information.\r | |
1403 | //\r | |
1404 | Status = gRT->GetVariable (\r | |
1405 | (UINT16 *)VariableName,\r | |
1406 | VariableGuid,\r | |
1407 | NULL,\r | |
1408 | &Size,\r | |
1409 | NULL\r | |
1410 | );\r | |
1411 | \r | |
1412 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
1413 | //\r | |
1414 | // Patch new PCD's value to offset in given HII variable.\r | |
1415 | //\r | |
1416 | if (Size >= (DataSize + Offset)) {\r | |
1417 | SetSize = Size;\r | |
1418 | } else {\r | |
1419 | SetSize = DataSize + Offset;\r | |
1420 | }\r | |
1421 | Buffer = AllocatePool (SetSize);\r | |
1422 | ASSERT (Buffer != NULL);\r | |
1423 | \r | |
1424 | Status = gRT->GetVariable (\r | |
1425 | VariableName,\r | |
1426 | VariableGuid,\r | |
1427 | &Attribute,\r | |
1428 | &Size,\r | |
1429 | Buffer\r | |
1430 | );\r | |
1431 | \r | |
1432 | ASSERT_EFI_ERROR (Status);\r | |
1433 | \r | |
1434 | CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r | |
1435 | \r | |
1436 | Status = gRT->SetVariable (\r | |
1437 | VariableName,\r | |
1438 | VariableGuid,\r | |
1439 | Attribute,\r | |
1440 | SetSize,\r | |
1441 | Buffer\r | |
1442 | );\r | |
1443 | \r | |
1444 | FreePool (Buffer);\r | |
1445 | return Status;\r | |
1446 | } else if (Status == EFI_NOT_FOUND) {\r | |
1447 | //\r | |
1448 | // If variable does not exist, a new variable need to be created.\r | |
1449 | //\r | |
1450 | \r | |
1451 | Size = Offset + DataSize;\r | |
1452 | \r | |
1453 | Buffer = AllocateZeroPool (Size);\r | |
1454 | ASSERT (Buffer != NULL);\r | |
1455 | \r | |
1456 | CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r | |
1457 | \r | |
1458 | Status = gRT->SetVariable (\r | |
1459 | VariableName,\r | |
1460 | VariableGuid,\r | |
1461 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
1462 | Size,\r | |
1463 | Buffer\r | |
1464 | );\r | |
1465 | \r | |
1466 | FreePool (Buffer);\r | |
1467 | return Status; \r | |
1468 | }\r | |
1469 | \r | |
1470 | //\r | |
1471 | // If we drop to here, the value is failed to be written in to variable area\r | |
1472 | // So, we will save the data in the PCD Database's volatile area.\r | |
1473 | //\r | |
1474 | return Status;\r | |
1475 | }\r | |
1476 | \r | |
1477 | /**\r | |
1478 | Get Token Number according to dynamic-ex PCD's {token space guid:token number}\r | |
1479 | \r | |
1480 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r | |
1481 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
1482 | space guid: token number} to Token Number.\r | |
1483 | \r | |
1484 | @param Guid Token space guid for dynamic-ex PCD entry.\r | |
1485 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
1486 | \r | |
1487 | @return Token Number for dynamic-ex PCD.\r | |
1488 | \r | |
1489 | **/\r | |
1490 | UINTN \r | |
1491 | GetExPcdTokenNumber (\r | |
1492 | IN CONST EFI_GUID *Guid,\r | |
1493 | IN UINT32 ExTokenNumber\r | |
1494 | )\r | |
1495 | {\r | |
1496 | UINT32 Index;\r | |
1497 | DYNAMICEX_MAPPING *ExMap;\r | |
1498 | EFI_GUID *GuidTable;\r | |
1499 | EFI_GUID *MatchGuid;\r | |
1500 | UINTN MatchGuidIdx;\r | |
1501 | \r | |
1502 | if (!mPeiDatabaseEmpty) {\r | |
1503 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->ExMapTableOffset);\r | |
1504 | GuidTable = (EFI_GUID *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->GuidTableOffset);\r | |
1505 | \r | |
1506 | MatchGuid = ScanGuid (GuidTable, mPeiGuidTableSize, Guid);\r | |
1507 | \r | |
1508 | if (MatchGuid != NULL) {\r | |
1509 | \r | |
1510 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1511 | \r | |
1512 | for (Index = 0; Index < mPcdDatabase.PeiDb->ExTokenCount; Index++) {\r | |
1513 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r | |
1514 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
1515 | return ExMap[Index].TokenNumber;\r | |
1516 | }\r | |
1517 | }\r | |
1518 | }\r | |
1519 | }\r | |
1520 | \r | |
1521 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->ExMapTableOffset);\r | |
1522 | GuidTable = (EFI_GUID *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->GuidTableOffset);\r | |
1523 | \r | |
1524 | MatchGuid = ScanGuid (GuidTable, mDxeGuidTableSize, Guid);\r | |
1525 | //\r | |
1526 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
1527 | // error in the BUILD system.\r | |
1528 | //\r | |
1529 | ASSERT (MatchGuid != NULL);\r | |
1530 | \r | |
1531 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1532 | \r | |
1533 | for (Index = 0; Index < mPcdDatabase.DxeDb->ExTokenCount; Index++) {\r | |
1534 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r | |
1535 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
1536 | return ExMap[Index].TokenNumber;\r | |
1537 | }\r | |
1538 | }\r | |
1539 | \r | |
1540 | ASSERT (FALSE);\r | |
1541 | \r | |
1542 | return 0;\r | |
1543 | }\r | |
1544 | \r | |
1545 | /**\r | |
1546 | Get SKU ID table from PCD database.\r | |
1547 | \r | |
1548 | @param LocalTokenNumberTableIdx Index of local token number in token number table.\r | |
1549 | @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
1550 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
1551 | @return Pointer to SKU ID array table\r | |
1552 | \r | |
1553 | **/\r | |
1554 | SKU_ID *\r | |
1555 | GetSkuIdArray (\r | |
1556 | IN UINTN LocalTokenNumberTableIdx,\r | |
1557 | IN BOOLEAN IsPeiDb\r | |
1558 | )\r | |
1559 | {\r | |
1560 | SKU_HEAD *SkuHead;\r | |
1561 | UINTN LocalTokenNumber;\r | |
1562 | UINT8 *Database;\r | |
1563 | \r | |
1564 | if (IsPeiDb) {\r | |
1565 | LocalTokenNumber = *((UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);\r | |
1566 | Database = (UINT8 *) mPcdDatabase.PeiDb;\r | |
1567 | } else {\r | |
1568 | LocalTokenNumber = *((UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);\r | |
1569 | Database = (UINT8 *) mPcdDatabase.DxeDb;\r | |
1570 | }\r | |
1571 | \r | |
1572 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r | |
1573 | \r | |
1574 | SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
1575 | \r | |
1576 | return (SKU_ID *) (Database + SkuHead->SkuIdTableOffset);\r | |
1577 | \r | |
1578 | }\r | |
1579 | \r | |
1580 | /**\r | |
1581 | Wrapper function of getting index of PCD entry in size table.\r | |
1582 | \r | |
1583 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1584 | @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
1585 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
1586 | \r | |
1587 | @return index of PCD entry in size table.\r | |
1588 | **/\r | |
1589 | UINTN\r | |
1590 | GetSizeTableIndex (\r | |
1591 | IN UINTN LocalTokenNumberTableIdx,\r | |
1592 | IN BOOLEAN IsPeiDb\r | |
1593 | )\r | |
1594 | {\r | |
1595 | UINT32 *LocalTokenNumberTable;\r | |
1596 | UINTN LocalTokenNumber;\r | |
1597 | UINTN Index;\r | |
1598 | UINTN SizeTableIdx;\r | |
1599 | SKU_ID *SkuIdTable;\r | |
1600 | \r | |
1601 | if (IsPeiDb) {\r | |
1602 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r | |
1603 | } else {\r | |
1604 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
1605 | }\r | |
1606 | \r | |
1607 | SizeTableIdx = 0;\r | |
1608 | \r | |
1609 | for (Index = 0; Index < LocalTokenNumberTableIdx; Index ++) {\r | |
1610 | LocalTokenNumber = LocalTokenNumberTable[Index];\r | |
1611 | \r | |
1612 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
1613 | //\r | |
1614 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1615 | // PCD entry.\r | |
1616 | //\r | |
1617 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r | |
1618 | //\r | |
1619 | // We have only two entry for VPD enabled PCD entry:\r | |
1620 | // 1) MAX Size.\r | |
1621 | // 2) Current Size\r | |
1622 | // Current size is equal to MAX size.\r | |
1623 | //\r | |
1624 | SizeTableIdx += 2;\r | |
1625 | } else {\r | |
1626 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1627 | //\r | |
1628 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1629 | // 1) MAX SIZE\r | |
1630 | // 2) Current Size\r | |
1631 | //\r | |
1632 | SizeTableIdx += 2;\r | |
1633 | } else {\r | |
1634 | //\r | |
1635 | // We have these entry for SKU enabled PCD entry\r | |
1636 | // 1) MAX SIZE\r | |
1637 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1638 | //\r | |
1639 | SkuIdTable = GetSkuIdArray (Index, IsPeiDb);\r | |
1640 | SizeTableIdx += (UINTN)*SkuIdTable + 1;\r | |
1641 | }\r | |
1642 | }\r | |
1643 | }\r | |
1644 | \r | |
1645 | }\r | |
1646 | \r | |
1647 | return SizeTableIdx; \r | |
1648 | }\r | |
1649 | \r | |
1650 | /**\r | |
1651 | Get size of POINTER type PCD value.\r | |
1652 | \r | |
1653 | @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r | |
1654 | @param MaxSize Maxmium size of POINTER type PCD value.\r | |
1655 | \r | |
1656 | @return size of POINTER type PCD value.\r | |
1657 | \r | |
1658 | **/\r | |
1659 | UINTN\r | |
1660 | GetPtrTypeSize (\r | |
1661 | IN UINTN LocalTokenNumberTableIdx,\r | |
1662 | OUT UINTN *MaxSize\r | |
1663 | )\r | |
1664 | {\r | |
1665 | INTN SizeTableIdx;\r | |
1666 | UINTN LocalTokenNumber;\r | |
1667 | SKU_ID *SkuIdTable;\r | |
1668 | SIZE_INFO *SizeTable;\r | |
1669 | UINTN Index;\r | |
1670 | BOOLEAN IsPeiDb;\r | |
1671 | UINT32 *LocalTokenNumberTable;\r | |
1672 | \r | |
1673 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1674 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1675 | // comparison.\r | |
1676 | IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < mPeiLocalTokenCount + 1);\r | |
1677 | \r | |
1678 | \r | |
1679 | if (IsPeiDb) {\r | |
1680 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r | |
1681 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->SizeTableOffset);\r | |
1682 | } else {\r | |
1683 | LocalTokenNumberTableIdx -= mPeiLocalTokenCount;\r | |
1684 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
1685 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SizeTableOffset);\r | |
1686 | }\r | |
1687 | \r | |
1688 | LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1689 | \r | |
1690 | ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r | |
1691 | \r | |
1692 | SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1693 | \r | |
1694 | *MaxSize = SizeTable[SizeTableIdx];\r | |
1695 | //\r | |
1696 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1697 | // PCD entry.\r | |
1698 | //\r | |
1699 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r | |
1700 | //\r | |
1701 | // We have only two entry for VPD enabled PCD entry:\r | |
1702 | // 1) MAX Size.\r | |
1703 | // 2) Current Size\r | |
1704 | // We consider current size is equal to MAX size.\r | |
1705 | //\r | |
1706 | return *MaxSize;\r | |
1707 | } else {\r | |
1708 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1709 | //\r | |
1710 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1711 | // 1) MAX SIZE\r | |
1712 | // 2) Current Size\r | |
1713 | //\r | |
1714 | return SizeTable[SizeTableIdx + 1];\r | |
1715 | } else {\r | |
1716 | //\r | |
1717 | // We have these entry for SKU enabled PCD entry\r | |
1718 | // 1) MAX SIZE\r | |
1719 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1720 | //\r | |
1721 | SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1722 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r | |
1723 | if (SkuIdTable[1 + Index] == mPcdDatabase.DxeDb->SystemSkuId) {\r | |
1724 | return SizeTable[SizeTableIdx + 1 + Index];\r | |
1725 | }\r | |
1726 | }\r | |
1727 | return SizeTable[SizeTableIdx + 1];\r | |
1728 | }\r | |
1729 | }\r | |
1730 | }\r | |
1731 | \r | |
1732 | /**\r | |
1733 | Set size of POINTER type PCD value. The size should not exceed the maximum size\r | |
1734 | of this PCD value.\r | |
1735 | \r | |
1736 | @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r | |
1737 | @param CurrentSize Size of POINTER type PCD value.\r | |
1738 | \r | |
1739 | @retval TRUE Success to set size of PCD value.\r | |
1740 | @retval FALSE Fail to set size of PCD value.\r | |
1741 | **/\r | |
1742 | BOOLEAN\r | |
1743 | SetPtrTypeSize (\r | |
1744 | IN UINTN LocalTokenNumberTableIdx,\r | |
1745 | IN OUT UINTN *CurrentSize\r | |
1746 | )\r | |
1747 | {\r | |
1748 | INTN SizeTableIdx;\r | |
1749 | UINTN LocalTokenNumber;\r | |
1750 | SKU_ID *SkuIdTable;\r | |
1751 | SIZE_INFO *SizeTable;\r | |
1752 | UINTN Index;\r | |
1753 | UINTN MaxSize;\r | |
1754 | BOOLEAN IsPeiDb;\r | |
1755 | UINT32 *LocalTokenNumberTable;\r | |
1756 | \r | |
1757 | //\r | |
1758 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1759 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1760 | // comparison.\r | |
1761 | //\r | |
1762 | IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < mPeiLocalTokenCount + 1);\r | |
1763 | \r | |
1764 | if (IsPeiDb) {\r | |
1765 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->LocalTokenNumberTableOffset);\r | |
1766 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.PeiDb + mPcdDatabase.PeiDb->SizeTableOffset);\r | |
1767 | } else {\r | |
1768 | LocalTokenNumberTableIdx -= mPeiLocalTokenCount;\r | |
1769 | LocalTokenNumberTable = (UINT32 *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->LocalTokenNumberTableOffset);\r | |
1770 | SizeTable = (SIZE_INFO *)((UINT8 *)mPcdDatabase.DxeDb + mPcdDatabase.DxeDb->SizeTableOffset);\r | |
1771 | }\r | |
1772 | \r | |
1773 | LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1774 | \r | |
1775 | ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r | |
1776 | \r | |
1777 | SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1778 | \r | |
1779 | MaxSize = SizeTable[SizeTableIdx];\r | |
1780 | //\r | |
1781 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1782 | // PCD entry.\r | |
1783 | //\r | |
1784 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r | |
1785 | //\r | |
1786 | // We shouldn't come here as we don't support SET for VPD\r | |
1787 | //\r | |
1788 | ASSERT (FALSE);\r | |
1789 | return FALSE;\r | |
1790 | } else {\r | |
1791 | if ((*CurrentSize > MaxSize) ||\r | |
1792 | (*CurrentSize == MAX_ADDRESS)) {\r | |
1793 | *CurrentSize = MaxSize;\r | |
1794 | return FALSE;\r | |
1795 | } \r | |
1796 | \r | |
1797 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1798 | //\r | |
1799 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1800 | // 1) MAX SIZE\r | |
1801 | // 2) Current Size\r | |
1802 | //\r | |
1803 | SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r | |
1804 | return TRUE;\r | |
1805 | } else {\r | |
1806 | //\r | |
1807 | // We have these entry for SKU enabled PCD entry\r | |
1808 | // 1) MAX SIZE\r | |
1809 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1810 | //\r | |
1811 | SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1812 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r | |
1813 | if (SkuIdTable[1 + Index] == mPcdDatabase.DxeDb->SystemSkuId) {\r | |
1814 | SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize;\r | |
1815 | return TRUE;\r | |
1816 | }\r | |
1817 | }\r | |
1818 | SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r | |
1819 | return TRUE;\r | |
1820 | }\r | |
1821 | }\r | |
1822 | }\r |