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9071550e | 1 | /*++\r |
2 | \r | |
b1f700a8 HT |
3 | Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r |
4 | This program and the accompanying materials\r | |
9071550e | 5 | are licensed and made available under the terms and conditions of the BSD License\r |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | FSVariable.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Provide support functions for variable services.\r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | #include "FSVariable.h"\r | |
23 | \r | |
24 | VARIABLE_STORE_HEADER mStoreHeaderTemplate = {\r | |
439c34f3 | 25 | VARIABLE_STORE_SIGNATURE,\r |
9071550e | 26 | VOLATILE_VARIABLE_STORE_SIZE,\r |
27 | VARIABLE_STORE_FORMATTED,\r | |
28 | VARIABLE_STORE_HEALTHY,\r | |
29 | 0,\r | |
30 | 0\r | |
31 | };\r | |
32 | \r | |
33 | //\r | |
34 | // Don't use module globals after the SetVirtualAddress map is signaled\r | |
35 | //\r | |
36 | VARIABLE_GLOBAL *mGlobal;\r | |
37 | \r | |
a24b4043 | 38 | /**\r |
39 | Update the variable region with Variable information. These are the same \r | |
40 | arguments as the EFI Variable services.\r | |
41 | \r | |
42 | @param[in] VariableName Name of variable\r | |
43 | \r | |
44 | @param[in] VendorGuid Guid of variable\r | |
45 | \r | |
46 | @param[in] Data Variable data\r | |
47 | \r | |
48 | @param[in] DataSize Size of data. 0 means delete\r | |
49 | \r | |
b29a823d | 50 | @param[in] Attributes Attribues of the variable\r |
a24b4043 | 51 | \r |
52 | @param[in] Variable The variable information which is used to keep track of variable usage.\r | |
53 | \r | |
54 | @retval EFI_SUCCESS The update operation is success.\r | |
55 | \r | |
56 | @retval EFI_OUT_OF_RESOURCES Variable region is full, can not write other data into this region.\r | |
57 | \r | |
58 | **/\r | |
59 | EFI_STATUS\r | |
60 | EFIAPI\r | |
61 | UpdateVariable (\r | |
62 | IN CHAR16 *VariableName,\r | |
63 | IN EFI_GUID *VendorGuid,\r | |
64 | IN VOID *Data,\r | |
65 | IN UINTN DataSize,\r | |
66 | IN UINT32 Attributes OPTIONAL,\r | |
67 | IN VARIABLE_POINTER_TRACK *Variable\r | |
68 | );\r | |
69 | \r | |
9071550e | 70 | VOID\r |
71 | EFIAPI\r | |
e56dd2ce | 72 | OnVirtualAddressChangeFsv (\r |
9071550e | 73 | IN EFI_EVENT Event,\r |
74 | IN VOID *Context\r | |
75 | );\r | |
76 | \r | |
9071550e | 77 | VOID\r |
78 | EFIAPI\r | |
79 | OnSimpleFileSystemInstall (\r | |
80 | IN EFI_EVENT Event,\r | |
81 | IN VOID *Context\r | |
82 | );\r | |
83 | \r | |
9071550e | 84 | BOOLEAN\r |
85 | IsValidVariableHeader (\r | |
86 | IN VARIABLE_HEADER *Variable\r | |
87 | )\r | |
88 | /*++\r | |
89 | \r | |
90 | Routine Description:\r | |
91 | \r | |
92 | This code checks if variable header is valid or not.\r | |
93 | \r | |
94 | Arguments:\r | |
95 | Variable Pointer to the Variable Header.\r | |
96 | \r | |
97 | Returns:\r | |
98 | TRUE Variable header is valid.\r | |
99 | FALSE Variable header is not valid.\r | |
100 | \r | |
101 | --*/\r | |
102 | {\r | |
a24b4043 | 103 | if (Variable == NULL || Variable->StartId != VARIABLE_DATA) {\r |
9071550e | 104 | return FALSE;\r |
105 | }\r | |
106 | \r | |
107 | return TRUE;\r | |
108 | }\r | |
109 | \r | |
9071550e | 110 | VARIABLE_STORE_STATUS\r |
111 | GetVariableStoreStatus (\r | |
112 | IN VARIABLE_STORE_HEADER *VarStoreHeader\r | |
113 | )\r | |
114 | /*++\r | |
115 | \r | |
116 | Routine Description:\r | |
117 | \r | |
118 | This code gets the current status of Variable Store.\r | |
119 | \r | |
120 | Arguments:\r | |
121 | \r | |
122 | VarStoreHeader Pointer to the Variable Store Header.\r | |
123 | \r | |
124 | Returns:\r | |
125 | \r | |
126 | EfiRaw Variable store status is raw\r | |
127 | EfiValid Variable store status is valid\r | |
128 | EfiInvalid Variable store status is invalid\r | |
129 | \r | |
130 | --*/\r | |
131 | {\r | |
3709c4cd | 132 | if (CompareGuid (&VarStoreHeader->Signature, &mStoreHeaderTemplate.Signature) &&\r |
9071550e | 133 | (VarStoreHeader->Format == mStoreHeaderTemplate.Format) &&\r |
134 | (VarStoreHeader->State == mStoreHeaderTemplate.State)\r | |
135 | ) {\r | |
136 | return EfiValid;\r | |
3709c4cd | 137 | } else if (((UINT32 *)(&VarStoreHeader->Signature))[0] == VAR_DEFAULT_VALUE_32 &&\r |
138 | ((UINT32 *)(&VarStoreHeader->Signature))[1] == VAR_DEFAULT_VALUE_32 &&\r | |
139 | ((UINT32 *)(&VarStoreHeader->Signature))[2] == VAR_DEFAULT_VALUE_32 &&\r | |
140 | ((UINT32 *)(&VarStoreHeader->Signature))[3] == VAR_DEFAULT_VALUE_32 &&\r | |
141 | VarStoreHeader->Size == VAR_DEFAULT_VALUE_32 &&\r | |
142 | VarStoreHeader->Format == VAR_DEFAULT_VALUE &&\r | |
143 | VarStoreHeader->State == VAR_DEFAULT_VALUE\r | |
9071550e | 144 | ) {\r |
145 | \r | |
146 | return EfiRaw;\r | |
147 | } else {\r | |
148 | return EfiInvalid;\r | |
149 | }\r | |
150 | }\r | |
151 | \r | |
9071550e | 152 | UINT8 *\r |
153 | GetVariableDataPtr (\r | |
154 | IN VARIABLE_HEADER *Variable\r | |
155 | )\r | |
156 | /*++\r | |
157 | \r | |
158 | Routine Description:\r | |
159 | \r | |
160 | This code gets the pointer to the variable data.\r | |
161 | \r | |
162 | Arguments:\r | |
163 | \r | |
164 | Variable Pointer to the Variable Header.\r | |
165 | \r | |
166 | Returns:\r | |
167 | \r | |
168 | UINT8* Pointer to Variable Data\r | |
169 | \r | |
170 | --*/\r | |
171 | {\r | |
172 | //\r | |
173 | // Be careful about pad size for alignment\r | |
174 | //\r | |
175 | return (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (Variable) + Variable->NameSize + GET_PAD_SIZE (Variable->NameSize));\r | |
176 | }\r | |
177 | \r | |
9071550e | 178 | VARIABLE_HEADER *\r |
179 | GetNextVariablePtr (\r | |
180 | IN VARIABLE_HEADER *Variable\r | |
181 | )\r | |
182 | /*++\r | |
183 | \r | |
184 | Routine Description:\r | |
185 | \r | |
186 | This code gets the pointer to the next variable header.\r | |
187 | \r | |
188 | Arguments:\r | |
189 | \r | |
190 | Variable Pointer to the Variable Header.\r | |
191 | \r | |
192 | Returns:\r | |
193 | \r | |
194 | VARIABLE_HEADER* Pointer to next variable header.\r | |
195 | \r | |
196 | --*/\r | |
197 | {\r | |
198 | if (!IsValidVariableHeader (Variable)) {\r | |
199 | return NULL;\r | |
200 | }\r | |
201 | //\r | |
202 | // Be careful about pad size for alignment\r | |
203 | //\r | |
204 | return (VARIABLE_HEADER *) ((UINTN) GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));\r | |
205 | }\r | |
206 | \r | |
9071550e | 207 | VARIABLE_HEADER *\r |
208 | GetEndPointer (\r | |
209 | IN VARIABLE_STORE_HEADER *VarStoreHeader\r | |
210 | )\r | |
211 | /*++\r | |
212 | \r | |
213 | Routine Description:\r | |
214 | \r | |
215 | This code gets the pointer to the last variable memory pointer byte\r | |
216 | \r | |
217 | Arguments:\r | |
218 | \r | |
219 | VarStoreHeader Pointer to the Variable Store Header.\r | |
220 | \r | |
221 | Returns:\r | |
222 | \r | |
223 | VARIABLE_HEADER* Pointer to last unavailable Variable Header\r | |
224 | \r | |
225 | --*/\r | |
226 | {\r | |
227 | //\r | |
228 | // The end of variable store\r | |
229 | //\r | |
230 | return (VARIABLE_HEADER *) ((UINTN) VarStoreHeader + VarStoreHeader->Size);\r | |
231 | }\r | |
232 | \r | |
233 | BOOLEAN\r | |
234 | ExistNewerVariable (\r | |
235 | IN VARIABLE_HEADER *Variable\r | |
236 | )\r | |
237 | /*++\r | |
238 | \r | |
239 | Routine Description:\r | |
240 | \r | |
241 | Check if exist newer variable when doing reclaim\r | |
242 | \r | |
243 | Arguments:\r | |
244 | \r | |
245 | Variable Pointer to start position\r | |
246 | \r | |
247 | Returns:\r | |
248 | \r | |
249 | TRUE - Exists another variable, which is newer than the current one\r | |
250 | FALSE - Doesn't exist another vairable which is newer than the current one\r | |
251 | \r | |
252 | --*/\r | |
253 | {\r | |
254 | VARIABLE_HEADER *NextVariable;\r | |
255 | CHAR16 *VariableName;\r | |
256 | EFI_GUID *VendorGuid;\r | |
257 | \r | |
258 | VendorGuid = &Variable->VendorGuid;\r | |
259 | VariableName = GET_VARIABLE_NAME_PTR(Variable);\r | |
260 | \r | |
261 | NextVariable = GetNextVariablePtr (Variable);\r | |
262 | while (IsValidVariableHeader (NextVariable)) {\r | |
263 | if ((NextVariable->State == VAR_ADDED) || (NextVariable->State == (VAR_ADDED & VAR_IN_DELETED_TRANSITION))) {\r | |
264 | //\r | |
265 | // If match Guid and Name\r | |
266 | //\r | |
267 | if (CompareGuid (VendorGuid, &NextVariable->VendorGuid)) {\r | |
268 | if (CompareMem (VariableName, GET_VARIABLE_NAME_PTR (NextVariable), StrSize (VariableName)) == 0) {\r | |
269 | return TRUE;\r | |
270 | }\r | |
271 | }\r | |
272 | }\r | |
273 | NextVariable = GetNextVariablePtr (NextVariable);\r | |
274 | }\r | |
275 | return FALSE;\r | |
276 | }\r | |
277 | \r | |
9071550e | 278 | EFI_STATUS\r |
279 | Reclaim (\r | |
280 | IN VARIABLE_STORAGE_TYPE StorageType,\r | |
281 | IN VARIABLE_HEADER *CurrentVariable OPTIONAL\r | |
282 | )\r | |
283 | /*++\r | |
284 | \r | |
285 | Routine Description:\r | |
286 | \r | |
287 | Variable store garbage collection and reclaim operation\r | |
288 | \r | |
289 | Arguments:\r | |
290 | \r | |
291 | IsVolatile The variable store is volatile or not,\r | |
292 | if it is non-volatile, need FTW\r | |
293 | CurrentVairable If it is not NULL, it means not to process\r | |
294 | current variable for Reclaim.\r | |
295 | \r | |
296 | Returns:\r | |
297 | \r | |
298 | EFI STATUS\r | |
299 | \r | |
300 | --*/\r | |
301 | {\r | |
302 | VARIABLE_HEADER *Variable;\r | |
303 | VARIABLE_HEADER *NextVariable;\r | |
304 | VARIABLE_STORE_HEADER *VariableStoreHeader;\r | |
305 | UINT8 *ValidBuffer;\r | |
306 | UINTN ValidBufferSize;\r | |
307 | UINTN VariableSize;\r | |
308 | UINT8 *CurrPtr;\r | |
309 | EFI_STATUS Status;\r | |
310 | \r | |
311 | VariableStoreHeader = (VARIABLE_STORE_HEADER *) mGlobal->VariableBase[StorageType];\r | |
312 | \r | |
313 | //\r | |
314 | // Start Pointers for the variable.\r | |
315 | //\r | |
316 | Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1);\r | |
317 | \r | |
a24b4043 | 318 | //\r |
319 | // recaluate the total size of Common/HwErr type variables in non-volatile area.\r | |
320 | //\r | |
321 | if (!StorageType) {\r | |
322 | mGlobal->CommonVariableTotalSize = 0;\r | |
323 | mGlobal->HwErrVariableTotalSize = 0;\r | |
324 | }\r | |
9071550e | 325 | //\r |
326 | // To make the reclaim, here we just allocate a memory that equal to the original memory\r | |
327 | //\r | |
328 | ValidBufferSize = sizeof (VARIABLE_STORE_HEADER) + VariableStoreHeader->Size;\r | |
329 | \r | |
330 | Status = gBS->AllocatePool (\r | |
331 | EfiBootServicesData,\r | |
332 | ValidBufferSize,\r | |
7c04a679 | 333 | (VOID**) &ValidBuffer\r |
9071550e | 334 | );\r |
335 | if (EFI_ERROR (Status)) {\r | |
336 | return Status;\r | |
337 | }\r | |
338 | \r | |
339 | CurrPtr = ValidBuffer;\r | |
340 | \r | |
341 | //\r | |
342 | // Copy variable store header\r | |
343 | //\r | |
344 | CopyMem (CurrPtr, VariableStoreHeader, sizeof (VARIABLE_STORE_HEADER));\r | |
345 | CurrPtr += sizeof (VARIABLE_STORE_HEADER);\r | |
346 | \r | |
347 | //\r | |
348 | // Start Pointers for the variable.\r | |
349 | //\r | |
350 | Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1);\r | |
351 | \r | |
352 | \r | |
353 | ValidBufferSize = sizeof (VARIABLE_STORE_HEADER);\r | |
354 | while (IsValidVariableHeader (Variable)) {\r | |
355 | NextVariable = GetNextVariablePtr (Variable);\r | |
356 | //\r | |
357 | // State VAR_ADDED or VAR_IN_DELETED_TRANSITION are to kept,\r | |
358 | // The CurrentVariable, is also saved, as SetVariable may fail due to lack of space\r | |
359 | //\r | |
360 | if (Variable->State == VAR_ADDED) {\r | |
361 | VariableSize = (UINTN) NextVariable - (UINTN) Variable;\r | |
362 | CopyMem (CurrPtr, (UINT8 *) Variable, VariableSize);\r | |
363 | ValidBufferSize += VariableSize;\r | |
364 | CurrPtr += VariableSize;\r | |
a24b4043 | 365 | if ((!StorageType) && ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {\r |
366 | mGlobal->HwErrVariableTotalSize += VariableSize;\r | |
367 | } else if ((!StorageType) && ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {\r | |
368 | mGlobal->CommonVariableTotalSize += VariableSize;\r | |
369 | }\r | |
9071550e | 370 | } else if (Variable->State == (VAR_ADDED & VAR_IN_DELETED_TRANSITION)) {\r |
371 | //\r | |
372 | // As variables that with the same guid and name may exist in NV due to power failure during SetVariable,\r | |
373 | // we will only save the latest valid one\r | |
374 | //\r | |
375 | if (!ExistNewerVariable(Variable)) {\r | |
376 | VariableSize = (UINTN) NextVariable - (UINTN) Variable;\r | |
377 | CopyMem (CurrPtr, (UINT8 *) Variable, VariableSize);\r | |
378 | //\r | |
379 | // If CurrentVariable == Variable, mark as VAR_IN_DELETED_TRANSITION\r | |
380 | //\r | |
381 | if (Variable != CurrentVariable){\r | |
382 | ((VARIABLE_HEADER *)CurrPtr)->State = VAR_ADDED;\r | |
383 | }\r | |
384 | CurrPtr += VariableSize;\r | |
385 | ValidBufferSize += VariableSize;\r | |
a24b4043 | 386 | if ((!StorageType) && ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {\r |
387 | mGlobal->HwErrVariableTotalSize += VariableSize;\r | |
388 | } else if ((!StorageType) && ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {\r | |
389 | mGlobal->CommonVariableTotalSize += VariableSize;\r | |
390 | }\r | |
9071550e | 391 | }\r |
392 | }\r | |
393 | Variable = NextVariable;\r | |
394 | }\r | |
395 | \r | |
a24b4043 | 396 | mGlobal->LastVariableOffset[StorageType] = ValidBufferSize;\r |
397 | \r | |
9071550e | 398 | //\r |
399 | // TODO: cannot restore to original state, basic FTW needed\r | |
400 | //\r | |
401 | Status = mGlobal->VariableStore[StorageType]->Erase (\r | |
402 | mGlobal->VariableStore[StorageType]\r | |
403 | );\r | |
404 | Status = mGlobal->VariableStore[StorageType]->Write (\r | |
405 | mGlobal->VariableStore[StorageType],\r | |
406 | 0,\r | |
407 | ValidBufferSize,\r | |
408 | ValidBuffer\r | |
409 | );\r | |
410 | \r | |
a24b4043 | 411 | if (EFI_ERROR (Status)) {\r |
412 | //\r | |
413 | // If error, then reset the last variable offset to zero.\r | |
414 | //\r | |
415 | mGlobal->LastVariableOffset[StorageType] = 0;\r | |
416 | };\r | |
9071550e | 417 | \r |
9071550e | 418 | gBS->FreePool (ValidBuffer);\r |
419 | \r | |
420 | return Status;\r | |
421 | }\r | |
422 | \r | |
9071550e | 423 | EFI_STATUS\r |
424 | FindVariable (\r | |
425 | IN CHAR16 *VariableName,\r | |
426 | IN EFI_GUID *VendorGuid,\r | |
427 | OUT VARIABLE_POINTER_TRACK *PtrTrack\r | |
428 | )\r | |
429 | /*++\r | |
430 | \r | |
431 | Routine Description:\r | |
432 | \r | |
433 | This code finds variable in storage blocks (Volatile or Non-Volatile)\r | |
434 | \r | |
435 | Arguments:\r | |
436 | \r | |
437 | VariableName Name of the variable to be found\r | |
438 | VendorGuid Vendor GUID to be found.\r | |
439 | PtrTrack Variable Track Pointer structure that contains\r | |
440 | Variable Information.\r | |
441 | Contains the pointer of Variable header.\r | |
442 | \r | |
443 | Returns:\r | |
444 | \r | |
445 | EFI_INVALID_PARAMETER - Invalid parameter\r | |
446 | EFI_SUCCESS - Find the specified variable\r | |
447 | EFI_NOT_FOUND - Not found\r | |
448 | \r | |
449 | --*/\r | |
450 | {\r | |
451 | VARIABLE_HEADER *Variable;\r | |
452 | VARIABLE_STORE_HEADER *VariableStoreHeader;\r | |
453 | UINTN Index;\r | |
454 | VARIABLE_HEADER *InDeleteVariable;\r | |
455 | UINTN InDeleteIndex;\r | |
456 | VARIABLE_HEADER *InDeleteStartPtr;\r | |
457 | VARIABLE_HEADER *InDeleteEndPtr;\r | |
458 | \r | |
459 | if (VariableName[0] != 0 && VendorGuid == NULL) {\r | |
460 | return EFI_INVALID_PARAMETER;\r | |
461 | }\r | |
462 | \r | |
463 | InDeleteVariable = NULL;\r | |
464 | InDeleteIndex = (UINTN)-1;\r | |
465 | InDeleteStartPtr = NULL;\r | |
466 | InDeleteEndPtr = NULL;\r | |
467 | \r | |
468 | for (Index = 0; Index < MaxType; Index ++) {\r | |
469 | //\r | |
470 | // 0: Non-Volatile, 1: Volatile\r | |
471 | //\r | |
472 | VariableStoreHeader = (VARIABLE_STORE_HEADER *) mGlobal->VariableBase[Index];\r | |
473 | \r | |
474 | //\r | |
475 | // Start Pointers for the variable.\r | |
476 | // Actual Data Pointer where data can be written.\r | |
477 | //\r | |
478 | Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1);\r | |
479 | \r | |
480 | //\r | |
481 | // Find the variable by walk through non-volatile and volatile variable store\r | |
482 | //\r | |
483 | PtrTrack->StartPtr = Variable;\r | |
484 | PtrTrack->EndPtr = GetEndPointer (VariableStoreHeader);\r | |
485 | \r | |
a24b4043 | 486 | while ((Variable < PtrTrack->EndPtr) && IsValidVariableHeader (Variable)) {\r |
9071550e | 487 | if (Variable->State == VAR_ADDED) {\r |
488 | if (!EfiAtRuntime () || (Variable->Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {\r | |
489 | if (VariableName[0] == 0) {\r | |
490 | PtrTrack->CurrPtr = Variable;\r | |
491 | PtrTrack->Type = (VARIABLE_STORAGE_TYPE) Index;\r | |
492 | return EFI_SUCCESS;\r | |
493 | } else {\r | |
494 | if (CompareGuid (VendorGuid, &Variable->VendorGuid)) {\r | |
495 | if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable), StrSize (VariableName))) {\r | |
496 | PtrTrack->CurrPtr = Variable;\r | |
497 | PtrTrack->Type = (VARIABLE_STORAGE_TYPE) Index;\r | |
498 | return EFI_SUCCESS;\r | |
499 | }\r | |
500 | }\r | |
501 | }\r | |
502 | }\r | |
503 | } else if (Variable->State == (VAR_ADDED & VAR_IN_DELETED_TRANSITION)) {\r | |
504 | //\r | |
505 | // VAR_IN_DELETED_TRANSITION should also be checked.\r | |
506 | //\r | |
507 | if (!EfiAtRuntime () || (Variable->Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {\r | |
508 | if (VariableName[0] == 0) {\r | |
509 | InDeleteVariable = Variable;\r | |
510 | InDeleteIndex = Index;\r | |
511 | InDeleteStartPtr = PtrTrack->StartPtr;\r | |
512 | InDeleteEndPtr = PtrTrack->EndPtr;\r | |
513 | } else {\r | |
514 | if (CompareGuid (VendorGuid, &Variable->VendorGuid)) {\r | |
515 | if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable), StrSize (VariableName))) {\r | |
516 | InDeleteVariable = Variable;\r | |
517 | InDeleteIndex = Index;\r | |
518 | InDeleteStartPtr = PtrTrack->StartPtr;\r | |
519 | InDeleteEndPtr = PtrTrack->EndPtr;\r | |
520 | }\r | |
521 | }\r | |
522 | }\r | |
523 | }\r | |
524 | }\r | |
525 | \r | |
526 | Variable = GetNextVariablePtr (Variable);\r | |
527 | }\r | |
528 | //\r | |
529 | // While (...)\r | |
530 | //\r | |
531 | }\r | |
532 | //\r | |
a24b4043 | 533 | // for (...)\r |
534 | //\r | |
535 | \r | |
536 | //\r | |
537 | // if VAR_IN_DELETED_TRANSITION found, and VAR_ADDED not found,\r | |
538 | // we return it.\r | |
539 | //\r | |
540 | if (InDeleteVariable != NULL) {\r | |
541 | PtrTrack->CurrPtr = InDeleteVariable;\r | |
542 | PtrTrack->Type = (VARIABLE_STORAGE_TYPE) InDeleteIndex;\r | |
543 | PtrTrack->StartPtr = InDeleteStartPtr;\r | |
544 | PtrTrack->EndPtr = InDeleteEndPtr;\r | |
545 | return EFI_SUCCESS;\r | |
546 | }\r | |
547 | \r | |
548 | PtrTrack->CurrPtr = NULL;\r | |
549 | return EFI_NOT_FOUND;\r | |
550 | }\r | |
551 | \r | |
552 | /**\r | |
553 | Get index from supported language codes according to language string.\r | |
554 | \r | |
555 | This code is used to get corresponding index in supported language codes. It can handle\r | |
607e91f5 | 556 | RFC4646 and ISO639 language tags.\r |
a24b4043 | 557 | In ISO639 language tags, take 3-characters as a delimitation to find matched string and calculate the index.\r |
607e91f5 | 558 | In RFC4646 language tags, take semicolon as a delimitation to find matched string and calculate the index.\r |
a24b4043 | 559 | \r |
560 | For example:\r | |
561 | SupportedLang = "engfraengfra"\r | |
562 | Lang = "eng"\r | |
563 | Iso639Language = TRUE\r | |
564 | The return value is "0".\r | |
565 | Another example:\r | |
566 | SupportedLang = "en;fr;en-US;fr-FR"\r | |
567 | Lang = "fr-FR"\r | |
568 | Iso639Language = FALSE\r | |
569 | The return value is "3".\r | |
570 | \r | |
571 | @param SupportedLang Platform supported language codes.\r | |
572 | @param Lang Configured language.\r | |
607e91f5 | 573 | @param Iso639Language A bool value to signify if the handler is operated on ISO639 or RFC4646.\r |
a24b4043 | 574 | \r |
575 | @retval the index of language in the language codes.\r | |
576 | \r | |
577 | **/\r | |
578 | UINTN\r | |
a24b4043 | 579 | GetIndexFromSupportedLangCodes(\r |
580 | IN CHAR8 *SupportedLang,\r | |
581 | IN CHAR8 *Lang,\r | |
582 | IN BOOLEAN Iso639Language\r | |
583 | ) \r | |
584 | {\r | |
585 | UINTN Index;\r | |
d7f79118 RN |
586 | UINTN CompareLength;\r |
587 | UINTN LanguageLength;\r | |
a24b4043 | 588 | \r |
a24b4043 | 589 | if (Iso639Language) {\r |
d7f79118 | 590 | CompareLength = ISO_639_2_ENTRY_SIZE;\r |
a24b4043 | 591 | for (Index = 0; Index < AsciiStrLen (SupportedLang); Index += CompareLength) {\r |
592 | if (AsciiStrnCmp (Lang, SupportedLang + Index, CompareLength) == 0) {\r | |
593 | //\r | |
594 | // Successfully find the index of Lang string in SupportedLang string.\r | |
595 | //\r | |
596 | Index = Index / CompareLength;\r | |
597 | return Index;\r | |
598 | }\r | |
599 | }\r | |
600 | ASSERT (FALSE);\r | |
601 | return 0;\r | |
602 | } else {\r | |
603 | //\r | |
607e91f5 | 604 | // Compare RFC4646 language code\r |
a24b4043 | 605 | //\r |
d7f79118 RN |
606 | Index = 0;\r |
607 | for (LanguageLength = 0; Lang[LanguageLength] != '\0'; LanguageLength++);\r | |
608 | \r | |
609 | for (Index = 0; *SupportedLang != '\0'; Index++, SupportedLang += CompareLength) {\r | |
a24b4043 | 610 | //\r |
d7f79118 | 611 | // Skip ';' characters in SupportedLang\r |
a24b4043 | 612 | //\r |
d7f79118 RN |
613 | for (; *SupportedLang != '\0' && *SupportedLang == ';'; SupportedLang++);\r |
614 | //\r | |
615 | // Determine the length of the next language code in SupportedLang\r | |
616 | //\r | |
617 | for (CompareLength = 0; SupportedLang[CompareLength] != '\0' && SupportedLang[CompareLength] != ';'; CompareLength++);\r | |
618 | \r | |
619 | if ((CompareLength == LanguageLength) && \r | |
620 | (AsciiStrnCmp (Lang, SupportedLang, CompareLength) == 0)) {\r | |
a24b4043 | 621 | //\r |
622 | // Successfully find the index of Lang string in SupportedLang string.\r | |
623 | //\r | |
624 | return Index;\r | |
625 | }\r | |
a24b4043 | 626 | }\r |
627 | ASSERT (FALSE);\r | |
628 | return 0;\r | |
629 | }\r | |
630 | }\r | |
631 | \r | |
632 | /**\r | |
633 | Get language string from supported language codes according to index.\r | |
634 | \r | |
635 | This code is used to get corresponding language string in supported language codes. It can handle\r | |
607e91f5 | 636 | RFC4646 and ISO639 language tags.\r |
a24b4043 | 637 | In ISO639 language tags, take 3-characters as a delimitation. Find language string according to the index.\r |
607e91f5 | 638 | In RFC4646 language tags, take semicolon as a delimitation. Find language string according to the index.\r |
a24b4043 | 639 | \r |
640 | For example:\r | |
641 | SupportedLang = "engfraengfra"\r | |
642 | Index = "1"\r | |
643 | Iso639Language = TRUE\r | |
644 | The return value is "fra".\r | |
645 | Another example:\r | |
646 | SupportedLang = "en;fr;en-US;fr-FR"\r | |
647 | Index = "1"\r | |
648 | Iso639Language = FALSE\r | |
649 | The return value is "fr".\r | |
650 | \r | |
651 | @param SupportedLang Platform supported language codes.\r | |
652 | @param Index the index in supported language codes.\r | |
607e91f5 | 653 | @param Iso639Language A bool value to signify if the handler is operated on ISO639 or RFC4646.\r |
a24b4043 | 654 | \r |
655 | @retval the language string in the language codes.\r | |
656 | \r | |
657 | **/\r | |
658 | CHAR8 *\r | |
a24b4043 | 659 | GetLangFromSupportedLangCodes (\r |
660 | IN CHAR8 *SupportedLang,\r | |
661 | IN UINTN Index,\r | |
662 | IN BOOLEAN Iso639Language\r | |
663 | )\r | |
664 | {\r | |
665 | UINTN SubIndex;\r | |
d7f79118 | 666 | UINTN CompareLength;\r |
a24b4043 | 667 | CHAR8 *Supported;\r |
668 | \r | |
669 | SubIndex = 0;\r | |
670 | Supported = SupportedLang;\r | |
671 | if (Iso639Language) {\r | |
672 | //\r | |
673 | // according to the index of Lang string in SupportedLang string to get the language.\r | |
674 | // As this code will be invoked in RUNTIME, therefore there is not memory allocate/free operation.\r | |
675 | // In driver entry, it pre-allocates a runtime attribute memory to accommodate this string.\r | |
676 | //\r | |
d7f79118 RN |
677 | CompareLength = ISO_639_2_ENTRY_SIZE;\r |
678 | mGlobal->Lang[CompareLength] = '\0';\r | |
a24b4043 | 679 | return CopyMem (mGlobal->Lang, SupportedLang + Index * CompareLength, CompareLength);\r |
d7f79118 | 680 | \r |
a24b4043 | 681 | } else {\r |
682 | while (TRUE) {\r | |
683 | //\r | |
684 | // take semicolon as delimitation, sequentially traverse supported language codes.\r | |
685 | //\r | |
686 | for (CompareLength = 0; *Supported != ';' && *Supported != '\0'; CompareLength++) {\r | |
687 | Supported++;\r | |
688 | }\r | |
689 | if ((*Supported == '\0') && (SubIndex != Index)) {\r | |
690 | //\r | |
691 | // Have completed the traverse, but not find corrsponding string.\r | |
692 | // This case is not allowed to happen.\r | |
693 | //\r | |
694 | ASSERT(FALSE);\r | |
695 | return NULL;\r | |
696 | }\r | |
697 | if (SubIndex == Index) {\r | |
698 | //\r | |
699 | // according to the index of Lang string in SupportedLang string to get the language.\r | |
700 | // As this code will be invoked in RUNTIME, therefore there is not memory allocate/free operation.\r | |
701 | // In driver entry, it pre-allocates a runtime attribute memory to accommodate this string.\r | |
702 | //\r | |
d7f79118 | 703 | mGlobal->PlatformLang[CompareLength] = '\0';\r |
a24b4043 | 704 | return CopyMem (mGlobal->PlatformLang, Supported - CompareLength, CompareLength);\r |
705 | }\r | |
706 | SubIndex++;\r | |
462979af RN |
707 | \r |
708 | //\r | |
709 | // Skip ';' characters in Supported\r | |
710 | //\r | |
711 | for (; *Supported != '\0' && *Supported == ';'; Supported++);\r | |
a24b4043 | 712 | }\r |
713 | }\r | |
714 | }\r | |
715 | \r | |
d7f79118 RN |
716 | /**\r |
717 | Returns a pointer to an allocated buffer that contains the best matching language \r | |
718 | from a set of supported languages. \r | |
719 | \r | |
720 | This function supports both ISO 639-2 and RFC 4646 language codes, but language \r | |
721 | code types may not be mixed in a single call to this function. This function\r | |
722 | supports a variable argument list that allows the caller to pass in a prioritized\r | |
723 | list of language codes to test against all the language codes in SupportedLanguages.\r | |
724 | \r | |
725 | If SupportedLanguages is NULL, then ASSERT().\r | |
726 | \r | |
727 | @param[in] SupportedLanguages A pointer to a Null-terminated ASCII string that\r | |
728 | contains a set of language codes in the format \r | |
729 | specified by Iso639Language.\r | |
730 | @param[in] Iso639Language If TRUE, then all language codes are assumed to be\r | |
731 | in ISO 639-2 format. If FALSE, then all language\r | |
732 | codes are assumed to be in RFC 4646 language format\r | |
733 | @param[in] ... A variable argument list that contains pointers to \r | |
734 | Null-terminated ASCII strings that contain one or more\r | |
735 | language codes in the format specified by Iso639Language.\r | |
736 | The first language code from each of these language\r | |
737 | code lists is used to determine if it is an exact or\r | |
738 | close match to any of the language codes in \r | |
739 | SupportedLanguages. Close matches only apply to RFC 4646\r | |
740 | language codes, and the matching algorithm from RFC 4647\r | |
741 | is used to determine if a close match is present. If \r | |
742 | an exact or close match is found, then the matching\r | |
743 | language code from SupportedLanguages is returned. If\r | |
744 | no matches are found, then the next variable argument\r | |
745 | parameter is evaluated. The variable argument list \r | |
746 | is terminated by a NULL.\r | |
747 | \r | |
748 | @retval NULL The best matching language could not be found in SupportedLanguages.\r | |
749 | @retval NULL There are not enough resources available to return the best matching \r | |
750 | language.\r | |
751 | @retval Other A pointer to a Null-terminated ASCII string that is the best matching \r | |
752 | language in SupportedLanguages.\r | |
753 | \r | |
754 | **/\r | |
755 | CHAR8 *\r | |
e1adae60 | 756 | EFIAPI\r |
d7f79118 RN |
757 | VariableGetBestLanguage (\r |
758 | IN CONST CHAR8 *SupportedLanguages, \r | |
759 | IN BOOLEAN Iso639Language,\r | |
760 | ...\r | |
761 | )\r | |
762 | {\r | |
763 | VA_LIST Args;\r | |
764 | CHAR8 *Language;\r | |
765 | UINTN CompareLength;\r | |
766 | UINTN LanguageLength;\r | |
767 | CONST CHAR8 *Supported;\r | |
768 | CHAR8 *Buffer;\r | |
769 | \r | |
770 | ASSERT (SupportedLanguages != NULL);\r | |
771 | \r | |
772 | VA_START (Args, Iso639Language);\r | |
773 | while ((Language = VA_ARG (Args, CHAR8 *)) != NULL) {\r | |
774 | //\r | |
775 | // Default to ISO 639-2 mode\r | |
776 | //\r | |
777 | CompareLength = 3;\r | |
778 | LanguageLength = MIN (3, AsciiStrLen (Language));\r | |
779 | \r | |
780 | //\r | |
781 | // If in RFC 4646 mode, then determine the length of the first RFC 4646 language code in Language\r | |
782 | //\r | |
783 | if (!Iso639Language) {\r | |
784 | for (LanguageLength = 0; Language[LanguageLength] != 0 && Language[LanguageLength] != ';'; LanguageLength++);\r | |
785 | }\r | |
786 | \r | |
787 | //\r | |
788 | // Trim back the length of Language used until it is empty\r | |
789 | //\r | |
790 | while (LanguageLength > 0) {\r | |
791 | //\r | |
792 | // Loop through all language codes in SupportedLanguages\r | |
793 | //\r | |
794 | for (Supported = SupportedLanguages; *Supported != '\0'; Supported += CompareLength) {\r | |
795 | //\r | |
796 | // In RFC 4646 mode, then Loop through all language codes in SupportedLanguages\r | |
797 | //\r | |
798 | if (!Iso639Language) {\r | |
799 | //\r | |
800 | // Skip ';' characters in Supported\r | |
801 | //\r | |
802 | for (; *Supported != '\0' && *Supported == ';'; Supported++);\r | |
803 | //\r | |
804 | // Determine the length of the next language code in Supported\r | |
805 | //\r | |
806 | for (CompareLength = 0; Supported[CompareLength] != 0 && Supported[CompareLength] != ';'; CompareLength++);\r | |
807 | //\r | |
808 | // If Language is longer than the Supported, then skip to the next language\r | |
809 | //\r | |
810 | if (LanguageLength > CompareLength) {\r | |
811 | continue;\r | |
812 | }\r | |
813 | }\r | |
814 | //\r | |
815 | // See if the first LanguageLength characters in Supported match Language\r | |
816 | //\r | |
817 | if (AsciiStrnCmp (Supported, Language, LanguageLength) == 0) {\r | |
818 | VA_END (Args);\r | |
819 | \r | |
820 | Buffer = Iso639Language ? mGlobal->Lang : mGlobal->PlatformLang;\r | |
821 | Buffer[CompareLength] = '\0';\r | |
822 | return CopyMem (Buffer, Supported, CompareLength);\r | |
823 | }\r | |
824 | }\r | |
825 | \r | |
826 | if (Iso639Language) {\r | |
827 | //\r | |
828 | // If ISO 639 mode, then each language can only be tested once\r | |
829 | //\r | |
830 | LanguageLength = 0;\r | |
831 | } else {\r | |
832 | //\r | |
833 | // If RFC 4646 mode, then trim Language from the right to the next '-' character \r | |
834 | //\r | |
835 | for (LanguageLength--; LanguageLength > 0 && Language[LanguageLength] != '-'; LanguageLength--);\r | |
836 | }\r | |
837 | }\r | |
838 | }\r | |
839 | VA_END (Args);\r | |
840 | \r | |
841 | //\r | |
842 | // No matches were found \r | |
843 | //\r | |
844 | return NULL;\r | |
845 | }\r | |
846 | \r | |
a24b4043 | 847 | /**\r |
848 | Hook the operations in PlatformLangCodes, LangCodes, PlatformLang and Lang.\r | |
849 | \r | |
850 | When setting Lang/LangCodes, simultaneously update PlatformLang/PlatformLangCodes.\r | |
851 | \r | |
852 | According to UEFI spec, PlatformLangCodes/LangCodes are only set once in firmware initialization,\r | |
853 | and are read-only. Therefore, in variable driver, only store the original value for other use.\r | |
854 | \r | |
855 | @param[in] VariableName Name of variable\r | |
856 | \r | |
857 | @param[in] Data Variable data\r | |
858 | \r | |
859 | @param[in] DataSize Size of data. 0 means delete\r | |
860 | \r | |
a24b4043 | 861 | **/\r |
d7f79118 | 862 | VOID\r |
a24b4043 | 863 | AutoUpdateLangVariable(\r |
864 | IN CHAR16 *VariableName,\r | |
865 | IN VOID *Data,\r | |
866 | IN UINTN DataSize\r | |
867 | )\r | |
868 | {\r | |
d7f79118 RN |
869 | EFI_STATUS Status;\r |
870 | CHAR8 *BestPlatformLang;\r | |
871 | CHAR8 *BestLang;\r | |
872 | UINTN Index;\r | |
873 | UINT32 Attributes;\r | |
a24b4043 | 874 | VARIABLE_POINTER_TRACK Variable;\r |
d7f79118 | 875 | BOOLEAN SetLanguageCodes;\r |
a24b4043 | 876 | \r |
877 | //\r | |
d7f79118 | 878 | // Don't do updates for delete operation\r |
a24b4043 | 879 | //\r |
d7f79118 RN |
880 | if (DataSize == 0) {\r |
881 | return;\r | |
882 | }\r | |
883 | \r | |
884 | SetLanguageCodes = FALSE;\r | |
a24b4043 | 885 | \r |
886 | if (StrCmp (VariableName, L"PlatformLangCodes") == 0) {\r | |
d7f79118 RN |
887 | //\r |
888 | // PlatformLangCodes is a volatile variable, so it can not be updated at runtime.\r | |
889 | //\r | |
890 | if (EfiAtRuntime ()) {\r | |
891 | return;\r | |
892 | }\r | |
893 | \r | |
894 | SetLanguageCodes = TRUE;\r | |
895 | \r | |
a24b4043 | 896 | //\r |
897 | // According to UEFI spec, PlatformLangCodes is only set once in firmware initialization, and is read-only\r | |
898 | // Therefore, in variable driver, only store the original value for other use.\r | |
899 | //\r | |
d7f79118 RN |
900 | if (mGlobal->PlatformLangCodes != NULL) {\r |
901 | FreePool (mGlobal->PlatformLangCodes);\r | |
902 | }\r | |
903 | mGlobal->PlatformLangCodes = AllocateRuntimeCopyPool (DataSize, Data);\r | |
904 | ASSERT (mGlobal->PlatformLangCodes != NULL);\r | |
905 | \r | |
a24b4043 | 906 | //\r |
d7f79118 RN |
907 | // PlatformLang holds a single language from PlatformLangCodes, \r |
908 | // so the size of PlatformLangCodes is enough for the PlatformLang.\r | |
a24b4043 | 909 | //\r |
d7f79118 RN |
910 | if (mGlobal->PlatformLang != NULL) {\r |
911 | FreePool (mGlobal->PlatformLang);\r | |
912 | }\r | |
913 | mGlobal->PlatformLang = AllocateRuntimePool (DataSize);\r | |
914 | ASSERT (mGlobal->PlatformLang != NULL);\r | |
a24b4043 | 915 | \r |
d7f79118 | 916 | } else if (StrCmp (VariableName, L"LangCodes") == 0) {\r |
a24b4043 | 917 | //\r |
d7f79118 | 918 | // LangCodes is a volatile variable, so it can not be updated at runtime.\r |
a24b4043 | 919 | //\r |
d7f79118 RN |
920 | if (EfiAtRuntime ()) {\r |
921 | return;\r | |
922 | }\r | |
923 | \r | |
924 | SetLanguageCodes = TRUE;\r | |
a24b4043 | 925 | \r |
926 | //\r | |
d7f79118 RN |
927 | // According to UEFI spec, LangCodes is only set once in firmware initialization, and is read-only\r |
928 | // Therefore, in variable driver, only store the original value for other use.\r | |
a24b4043 | 929 | //\r |
d7f79118 RN |
930 | if (mGlobal->LangCodes != NULL) {\r |
931 | FreePool (mGlobal->LangCodes);\r | |
932 | }\r | |
933 | mGlobal->LangCodes = AllocateRuntimeCopyPool (DataSize, Data);\r | |
934 | ASSERT (mGlobal->LangCodes != NULL);\r | |
935 | }\r | |
a24b4043 | 936 | \r |
d7f79118 RN |
937 | if (SetLanguageCodes \r |
938 | && (mGlobal->PlatformLangCodes != NULL)\r | |
939 | && (mGlobal->LangCodes != NULL)) {\r | |
a24b4043 | 940 | //\r |
d7f79118 RN |
941 | // Update Lang if PlatformLang is already set\r |
942 | // Update PlatformLang if Lang is already set\r | |
a24b4043 | 943 | //\r |
d7f79118 RN |
944 | Status = FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable);\r |
945 | if (!EFI_ERROR (Status)) {\r | |
946 | //\r | |
947 | // Update Lang\r | |
948 | //\r | |
949 | VariableName = L"PlatformLang";\r | |
950 | Data = GetVariableDataPtr (Variable.CurrPtr);\r | |
951 | DataSize = Variable.CurrPtr->DataSize;\r | |
952 | } else {\r | |
953 | Status = FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable);\r | |
954 | if (!EFI_ERROR (Status)) {\r | |
955 | //\r | |
956 | // Update PlatformLang\r | |
957 | //\r | |
958 | VariableName = L"Lang";\r | |
959 | Data = GetVariableDataPtr (Variable.CurrPtr);\r | |
960 | DataSize = Variable.CurrPtr->DataSize;\r | |
961 | } else {\r | |
962 | //\r | |
963 | // Neither PlatformLang nor Lang is set, directly return\r | |
964 | //\r | |
965 | return;\r | |
966 | }\r | |
967 | }\r | |
968 | }\r | |
969 | \r | |
970 | //\r | |
971 | // According to UEFI spec, "Lang" and "PlatformLang" is NV|BS|RT attributions.\r | |
972 | //\r | |
973 | Attributes = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;\r | |
a24b4043 | 974 | \r |
d7f79118 | 975 | if (StrCmp (VariableName, L"PlatformLang") == 0) {\r |
a24b4043 | 976 | //\r |
d7f79118 | 977 | // Update Lang when PlatformLangCodes/LangCodes were set.\r |
a24b4043 | 978 | //\r |
d7f79118 RN |
979 | if ((mGlobal->PlatformLangCodes != NULL) && (mGlobal->LangCodes != NULL)) {\r |
980 | //\r | |
981 | // When setting PlatformLang, firstly get most matched language string from supported language codes.\r | |
982 | //\r | |
983 | BestPlatformLang = VariableGetBestLanguage (mGlobal->PlatformLangCodes, FALSE, Data, NULL);\r | |
984 | if (BestPlatformLang != NULL) {\r | |
985 | //\r | |
986 | // Get the corresponding index in language codes.\r | |
987 | //\r | |
988 | Index = GetIndexFromSupportedLangCodes (mGlobal->PlatformLangCodes, BestPlatformLang, FALSE);\r | |
a24b4043 | 989 | \r |
d7f79118 RN |
990 | //\r |
991 | // Get the corresponding ISO639 language tag according to RFC4646 language tag.\r | |
992 | //\r | |
993 | BestLang = GetLangFromSupportedLangCodes (mGlobal->LangCodes, Index, TRUE);\r | |
a24b4043 | 994 | \r |
d7f79118 RN |
995 | //\r |
996 | // Successfully convert PlatformLang to Lang, and set the BestLang value into Lang variable simultaneously.\r | |
997 | //\r | |
998 | FindVariable(L"Lang", &gEfiGlobalVariableGuid, &Variable);\r | |
a24b4043 | 999 | \r |
d7f79118 | 1000 | Status = UpdateVariable (L"Lang", &gEfiGlobalVariableGuid, BestLang, ISO_639_2_ENTRY_SIZE + 1, Attributes, &Variable);\r |
a24b4043 | 1001 | \r |
d7f79118 | 1002 | DEBUG ((EFI_D_INFO, "Variable Driver Auto Update PlatformLang, PlatformLang:%a, Lang:%a\n", BestPlatformLang, BestLang));\r |
a24b4043 | 1003 | \r |
d7f79118 RN |
1004 | ASSERT_EFI_ERROR(Status);\r |
1005 | }\r | |
1006 | }\r | |
a24b4043 | 1007 | \r |
d7f79118 | 1008 | } else if (StrCmp (VariableName, L"Lang") == 0) {\r |
a24b4043 | 1009 | //\r |
d7f79118 | 1010 | // Update PlatformLang when PlatformLangCodes/LangCodes were set.\r |
a24b4043 | 1011 | //\r |
d7f79118 RN |
1012 | if ((mGlobal->PlatformLangCodes != NULL) && (mGlobal->LangCodes != NULL)) {\r |
1013 | //\r | |
1014 | // When setting Lang, firstly get most matched language string from supported language codes.\r | |
1015 | //\r | |
1016 | BestLang = VariableGetBestLanguage (mGlobal->LangCodes, TRUE, Data, NULL);\r | |
1017 | if (BestLang != NULL) {\r | |
1018 | //\r | |
1019 | // Get the corresponding index in language codes.\r | |
1020 | //\r | |
1021 | Index = GetIndexFromSupportedLangCodes (mGlobal->LangCodes, BestLang, TRUE);\r | |
a24b4043 | 1022 | \r |
d7f79118 RN |
1023 | //\r |
1024 | // Get the corresponding RFC4646 language tag according to ISO639 language tag.\r | |
1025 | //\r | |
1026 | BestPlatformLang = GetLangFromSupportedLangCodes (mGlobal->PlatformLangCodes, Index, FALSE);\r | |
1027 | \r | |
1028 | //\r | |
1029 | // Successfully convert Lang to PlatformLang, and set the BestPlatformLang value into PlatformLang variable simultaneously.\r | |
1030 | //\r | |
1031 | FindVariable(L"PlatformLang", &gEfiGlobalVariableGuid, &Variable);\r | |
a24b4043 | 1032 | \r |
d7f79118 RN |
1033 | Status = UpdateVariable (L"PlatformLang", &gEfiGlobalVariableGuid, BestPlatformLang, \r |
1034 | AsciiStrSize (BestPlatformLang), Attributes, &Variable);\r | |
a24b4043 | 1035 | \r |
d7f79118 RN |
1036 | DEBUG ((EFI_D_INFO, "Variable Driver Auto Update Lang, Lang:%a, PlatformLang:%a\n", BestLang, BestPlatformLang));\r |
1037 | ASSERT_EFI_ERROR (Status);\r | |
1038 | }\r | |
1039 | }\r | |
a24b4043 | 1040 | }\r |
a24b4043 | 1041 | }\r |
1042 | \r | |
1043 | /**\r | |
1044 | Update the variable region with Variable information. These are the same \r | |
1045 | arguments as the EFI Variable services.\r | |
1046 | \r | |
1047 | @param[in] VariableName Name of variable\r | |
1048 | \r | |
1049 | @param[in] VendorGuid Guid of variable\r | |
1050 | \r | |
1051 | @param[in] Data Variable data\r | |
1052 | \r | |
1053 | @param[in] DataSize Size of data. 0 means delete\r | |
1054 | \r | |
b29a823d | 1055 | @param[in] Attributes Attribues of the variable\r |
a24b4043 | 1056 | \r |
1057 | @param[in] Variable The variable information which is used to keep track of variable usage.\r | |
1058 | \r | |
1059 | @retval EFI_SUCCESS The update operation is success.\r | |
1060 | \r | |
1061 | @retval EFI_OUT_OF_RESOURCES Variable region is full, can not write other data into this region.\r | |
1062 | \r | |
1063 | **/\r | |
1064 | EFI_STATUS\r | |
1065 | EFIAPI\r | |
1066 | UpdateVariable (\r | |
1067 | IN CHAR16 *VariableName,\r | |
1068 | IN EFI_GUID *VendorGuid,\r | |
1069 | IN VOID *Data,\r | |
1070 | IN UINTN DataSize,\r | |
1071 | IN UINT32 Attributes OPTIONAL,\r | |
1072 | IN VARIABLE_POINTER_TRACK *Variable\r | |
1073 | )\r | |
1074 | {\r | |
1075 | EFI_STATUS Status;\r | |
1076 | VARIABLE_HEADER *NextVariable;\r | |
1077 | UINTN VarNameOffset;\r | |
1078 | UINTN VarDataOffset;\r | |
1079 | UINTN VarNameSize;\r | |
1080 | UINTN VarSize;\r | |
1081 | UINT8 State;\r | |
1082 | BOOLEAN Reclaimed;\r | |
1083 | VARIABLE_STORAGE_TYPE StorageType;\r | |
1084 | \r | |
1085 | Reclaimed = FALSE;\r | |
1086 | \r | |
1087 | if (Variable->CurrPtr != NULL) { \r | |
1088 | //\r | |
1089 | // Update/Delete existing variable\r | |
1090 | //\r | |
1091 | \r | |
1092 | if (EfiAtRuntime ()) { \r | |
1093 | //\r | |
1094 | // If EfiAtRuntime and the variable is Volatile and Runtime Access, \r | |
1095 | // the volatile is ReadOnly, and SetVariable should be aborted and \r | |
1096 | // return EFI_WRITE_PROTECTED.\r | |
1097 | //\r | |
1098 | if (Variable->Type == Volatile) {\r | |
1099 | return EFI_WRITE_PROTECTED;\r | |
1100 | }\r | |
1101 | //\r | |
1102 | // Only variable have NV attribute can be updated/deleted in Runtime\r | |
1103 | //\r | |
1104 | if (!(Variable->CurrPtr->Attributes & EFI_VARIABLE_NON_VOLATILE)) {\r | |
1105 | return EFI_INVALID_PARAMETER; \r | |
1106 | }\r | |
1107 | }\r | |
1108 | \r | |
1109 | //\r | |
1110 | // Setting a data variable with no access, or zero DataSize attributes\r | |
1111 | // specified causes it to be deleted.\r | |
1112 | //\r | |
1113 | if (DataSize == 0 || (Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == 0) {\r | |
1114 | //\r | |
1115 | // Found this variable in storage\r | |
1116 | //\r | |
1117 | State = Variable->CurrPtr->State;\r | |
1118 | State &= VAR_DELETED;\r | |
1119 | \r | |
1120 | Status = mGlobal->VariableStore[Variable->Type]->Write (\r | |
1121 | mGlobal->VariableStore[Variable->Type],\r | |
1122 | VARIABLE_MEMBER_OFFSET (State, (UINTN) Variable->CurrPtr - (UINTN) Variable->StartPtr),\r | |
1123 | sizeof (Variable->CurrPtr->State),\r | |
1124 | &State\r | |
1125 | );\r | |
1126 | //\r | |
1127 | // NOTE: Write operation at least can write data to memory cache\r | |
1128 | // Discard file writing failure here.\r | |
1129 | //\r | |
1130 | return EFI_SUCCESS;\r | |
1131 | }\r | |
1132 | \r | |
1133 | //\r | |
1134 | // Found this variable in storage\r | |
1135 | // If the variable is marked valid and the same data has been passed in\r | |
1136 | // then return to the caller immediately.\r | |
1137 | //\r | |
1138 | if ((Variable->CurrPtr->DataSize == DataSize) &&\r | |
1139 | (CompareMem (Data, GetVariableDataPtr (Variable->CurrPtr), DataSize) == 0)\r | |
1140 | ) {\r | |
1141 | return EFI_SUCCESS;\r | |
1142 | } else if ((Variable->CurrPtr->State == VAR_ADDED) ||\r | |
1143 | (Variable->CurrPtr->State == (VAR_ADDED & VAR_IN_DELETED_TRANSITION))) {\r | |
1144 | //\r | |
1145 | // Mark the old variable as in delete transition\r | |
1146 | //\r | |
1147 | State = Variable->CurrPtr->State;\r | |
1148 | State &= VAR_IN_DELETED_TRANSITION;\r | |
1149 | \r | |
1150 | Status = mGlobal->VariableStore[Variable->Type]->Write (\r | |
1151 | mGlobal->VariableStore[Variable->Type],\r | |
1152 | VARIABLE_MEMBER_OFFSET (State, (UINTN) Variable->CurrPtr - (UINTN) Variable->StartPtr),\r | |
1153 | sizeof (Variable->CurrPtr->State),\r | |
1154 | &State\r | |
1155 | );\r | |
1156 | //\r | |
1157 | // NOTE: Write operation at least can write data to memory cache\r | |
1158 | // Discard file writing failure here.\r | |
1159 | //\r | |
1160 | }\r | |
1161 | } else {\r | |
1162 | //\r | |
1163 | // Create a new variable\r | |
1164 | // \r | |
1165 | \r | |
1166 | //\r | |
1167 | // Make sure we are trying to create a new variable.\r | |
1168 | // Setting a data variable with no access, or zero DataSize attributes means to delete it. \r | |
1169 | //\r | |
1170 | if (DataSize == 0 || (Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == 0) {\r | |
1171 | return EFI_NOT_FOUND;\r | |
1172 | } \r | |
1173 | //\r | |
1174 | // Only variable have NV|RT attribute can be created in Runtime\r | |
1175 | //\r | |
1176 | if (EfiAtRuntime () &&\r | |
1177 | (!(Attributes & EFI_VARIABLE_RUNTIME_ACCESS) || !(Attributes & EFI_VARIABLE_NON_VOLATILE))) {\r | |
1178 | return EFI_INVALID_PARAMETER;\r | |
1179 | } \r | |
1180 | \r | |
1181 | } \r | |
1182 | \r | |
1183 | //\r | |
1184 | // Function part - create a new variable and copy the data.\r | |
1185 | // Both update a variable and create a variable will come here. \r | |
1186 | // We can firstly write all the data in memory, then write them to file\r | |
1187 | // This can reduce the times of write operation\r | |
1188 | //\r | |
1189 | \r | |
1190 | NextVariable = (VARIABLE_HEADER *) mGlobal->Scratch;\r | |
1191 | \r | |
1192 | NextVariable->StartId = VARIABLE_DATA;\r | |
1193 | NextVariable->Attributes = Attributes;\r | |
1194 | NextVariable->State = VAR_ADDED;\r | |
1195 | NextVariable->Reserved = 0;\r | |
1196 | VarNameOffset = sizeof (VARIABLE_HEADER);\r | |
1197 | VarNameSize = StrSize (VariableName);\r | |
1198 | CopyMem (\r | |
1199 | (UINT8 *) ((UINTN) NextVariable + VarNameOffset),\r | |
1200 | VariableName,\r | |
1201 | VarNameSize\r | |
1202 | );\r | |
1203 | VarDataOffset = VarNameOffset + VarNameSize + GET_PAD_SIZE (VarNameSize);\r | |
1204 | CopyMem (\r | |
1205 | (UINT8 *) ((UINTN) NextVariable + VarDataOffset),\r | |
1206 | Data,\r | |
1207 | DataSize\r | |
1208 | );\r | |
1209 | CopyMem (&NextVariable->VendorGuid, VendorGuid, sizeof (EFI_GUID));\r | |
1210 | //\r | |
1211 | // There will be pad bytes after Data, the NextVariable->NameSize and\r | |
1212 | // NextVariable->DataSize should not include pad size so that variable\r | |
1213 | // service can get actual size in GetVariable\r | |
1214 | //\r | |
1215 | NextVariable->NameSize = (UINT32)VarNameSize;\r | |
1216 | NextVariable->DataSize = (UINT32)DataSize;\r | |
1217 | \r | |
1218 | //\r | |
1219 | // The actual size of the variable that stores in storage should\r | |
1220 | // include pad size.\r | |
1221 | // VarDataOffset: offset from begin of current variable header\r | |
1222 | //\r | |
1223 | VarSize = VarDataOffset + DataSize + GET_PAD_SIZE (DataSize);\r | |
1224 | \r | |
1225 | StorageType = (Attributes & EFI_VARIABLE_NON_VOLATILE) ? NonVolatile : Volatile;\r | |
1226 | \r | |
1227 | if ((UINT32) (VarSize + mGlobal->LastVariableOffset[StorageType]) >\r | |
1228 | ((VARIABLE_STORE_HEADER *) mGlobal->VariableBase[StorageType])->Size\r | |
1229 | ) {\r | |
1230 | if ((StorageType == NonVolatile) && EfiAtRuntime ()) {\r | |
1231 | return EFI_OUT_OF_RESOURCES;\r | |
1232 | }\r | |
1233 | //\r | |
1234 | // Perform garbage collection & reclaim operation\r | |
1235 | //\r | |
1236 | Status = Reclaim (StorageType, Variable->CurrPtr);\r | |
1237 | if (EFI_ERROR (Status)) {\r | |
1238 | //\r | |
1239 | // Reclaim error\r | |
1240 | // we cannot restore to original state, fetal error, report to user\r | |
1241 | //\r | |
1242 | DEBUG ((EFI_D_ERROR, "FSVariable: Recalim error (fetal error) - %r\n", Status));\r | |
1243 | return Status;\r | |
1244 | }\r | |
1245 | //\r | |
1246 | // If still no enough space, return out of resources\r | |
1247 | //\r | |
1248 | if ((UINT32) (VarSize + mGlobal->LastVariableOffset[StorageType]) >\r | |
1249 | ((VARIABLE_STORE_HEADER *) mGlobal->VariableBase[StorageType])->Size\r | |
1250 | ) {\r | |
1251 | return EFI_OUT_OF_RESOURCES;\r | |
1252 | }\r | |
1253 | \r | |
1254 | Reclaimed = TRUE;\r | |
1255 | }\r | |
1256 | Status = mGlobal->VariableStore[StorageType]->Write (\r | |
1257 | mGlobal->VariableStore[StorageType],\r | |
1258 | mGlobal->LastVariableOffset[StorageType],\r | |
1259 | VarSize,\r | |
1260 | NextVariable\r | |
1261 | );\r | |
1262 | //\r | |
1263 | // NOTE: Write operation at least can write data to memory cache\r | |
1264 | // Discard file writing failure here.\r | |
9071550e | 1265 | //\r |
a24b4043 | 1266 | mGlobal->LastVariableOffset[StorageType] += VarSize;\r |
1267 | \r | |
1268 | if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != 0) {\r | |
1269 | mGlobal->HwErrVariableTotalSize += VarSize;\r | |
1270 | } else {\r | |
1271 | mGlobal->CommonVariableTotalSize += VarSize;\r | |
1272 | }\r | |
9071550e | 1273 | \r |
1274 | //\r | |
a24b4043 | 1275 | // Mark the old variable as deleted\r |
9071550e | 1276 | //\r |
a24b4043 | 1277 | if (!Reclaimed && !EFI_ERROR (Status) && Variable->CurrPtr != NULL) {\r |
1278 | State = Variable->CurrPtr->State;\r | |
1279 | State &= VAR_DELETED;\r | |
9071550e | 1280 | \r |
a24b4043 | 1281 | Status = mGlobal->VariableStore[StorageType]->Write (\r |
1282 | mGlobal->VariableStore[StorageType],\r | |
1283 | VARIABLE_MEMBER_OFFSET (State, (UINTN) Variable->CurrPtr - (UINTN) Variable->StartPtr),\r | |
1284 | sizeof (Variable->CurrPtr->State),\r | |
1285 | &State\r | |
1286 | );\r | |
1287 | //\r | |
1288 | // NOTE: Write operation at least can write data to memory cache\r | |
1289 | // Discard file writing failure here.\r | |
1290 | //\r | |
1291 | }\r | |
1292 | return EFI_SUCCESS;\r | |
9071550e | 1293 | }\r |
1294 | \r | |
1295 | EFI_STATUS\r | |
1296 | EFIAPI\r | |
3ffa0f1f | 1297 | DuetGetVariable (\r |
9071550e | 1298 | IN CHAR16 *VariableName,\r |
1299 | IN EFI_GUID *VendorGuid,\r | |
1300 | OUT UINT32 *Attributes OPTIONAL,\r | |
1301 | IN OUT UINTN *DataSize,\r | |
1302 | OUT VOID *Data\r | |
1303 | )\r | |
1304 | /*++\r | |
1305 | \r | |
1306 | Routine Description:\r | |
1307 | \r | |
1308 | This code finds variable in storage blocks (Volatile or Non-Volatile)\r | |
1309 | \r | |
1310 | Arguments:\r | |
1311 | \r | |
1312 | VariableName Name of Variable to be found\r | |
1313 | VendorGuid Variable vendor GUID\r | |
1314 | Attributes OPTIONAL Attribute value of the variable found\r | |
1315 | DataSize Size of Data found. If size is less than the\r | |
1316 | data, this value contains the required size.\r | |
1317 | Data Data pointer\r | |
1318 | \r | |
1319 | Returns:\r | |
1320 | \r | |
1321 | EFI STATUS\r | |
1322 | \r | |
1323 | --*/\r | |
1324 | {\r | |
1325 | VARIABLE_POINTER_TRACK Variable;\r | |
1326 | UINTN VarDataSize;\r | |
1327 | EFI_STATUS Status;\r | |
1328 | \r | |
1329 | if (VariableName == NULL || VendorGuid == NULL || DataSize == NULL) {\r | |
1330 | return EFI_INVALID_PARAMETER;\r | |
1331 | }\r | |
1332 | \r | |
1333 | //\r | |
1334 | // Find existing variable\r | |
1335 | //\r | |
1336 | Status = FindVariable (VariableName, VendorGuid, &Variable);\r | |
1337 | \r | |
1338 | if (Variable.CurrPtr == NULL || EFI_ERROR (Status)) {\r | |
1339 | return Status;\r | |
1340 | }\r | |
1341 | //\r | |
1342 | // Get data size\r | |
1343 | //\r | |
1344 | VarDataSize = Variable.CurrPtr->DataSize;\r | |
1345 | if (*DataSize >= VarDataSize) {\r | |
1346 | if (Data == NULL) {\r | |
1347 | return EFI_INVALID_PARAMETER;\r | |
1348 | }\r | |
1349 | CopyMem (Data, GetVariableDataPtr (Variable.CurrPtr), VarDataSize);\r | |
1350 | \r | |
1351 | if (Attributes != NULL) {\r | |
1352 | *Attributes = Variable.CurrPtr->Attributes;\r | |
1353 | }\r | |
1354 | \r | |
1355 | *DataSize = VarDataSize;\r | |
1356 | \r | |
1357 | return EFI_SUCCESS;\r | |
1358 | } else {\r | |
1359 | *DataSize = VarDataSize;\r | |
1360 | return EFI_BUFFER_TOO_SMALL;\r | |
1361 | }\r | |
1362 | }\r | |
1363 | \r | |
1364 | EFI_STATUS\r | |
1365 | EFIAPI\r | |
1366 | GetNextVariableName (\r | |
1367 | IN OUT UINTN *VariableNameSize,\r | |
1368 | IN OUT CHAR16 *VariableName,\r | |
1369 | IN OUT EFI_GUID *VendorGuid\r | |
1370 | )\r | |
1371 | /*++\r | |
1372 | \r | |
1373 | Routine Description:\r | |
1374 | \r | |
1375 | This code Finds the Next available variable\r | |
1376 | \r | |
1377 | Arguments:\r | |
1378 | \r | |
1379 | VariableNameSize Size of the variable\r | |
1380 | VariableName Pointer to variable name\r | |
1381 | VendorGuid Variable Vendor Guid\r | |
1382 | \r | |
1383 | Returns:\r | |
1384 | \r | |
1385 | EFI STATUS\r | |
1386 | \r | |
1387 | --*/\r | |
1388 | {\r | |
1389 | VARIABLE_POINTER_TRACK Variable;\r | |
1390 | UINTN VarNameSize;\r | |
1391 | EFI_STATUS Status;\r | |
1392 | \r | |
1393 | if (VariableNameSize == NULL || VariableName == NULL || VendorGuid == NULL) {\r | |
1394 | return EFI_INVALID_PARAMETER;\r | |
1395 | }\r | |
1396 | \r | |
1397 | Status = FindVariable (VariableName, VendorGuid, &Variable);\r | |
1398 | \r | |
1399 | if (Variable.CurrPtr == NULL || EFI_ERROR (Status)) {\r | |
1400 | return Status;\r | |
1401 | }\r | |
1402 | \r | |
1403 | if (VariableName[0] != 0) {\r | |
1404 | //\r | |
1405 | // If variable name is not NULL, get next variable\r | |
1406 | //\r | |
1407 | Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);\r | |
1408 | }\r | |
1409 | \r | |
1410 | while (TRUE) {\r | |
1411 | //\r | |
1412 | // The order we find variable is: 1). NonVolatile; 2). Volatile\r | |
1413 | // If both volatile and non-volatile variable store are parsed,\r | |
1414 | // return not found\r | |
1415 | //\r | |
1416 | if (Variable.CurrPtr >= Variable.EndPtr || Variable.CurrPtr == NULL) {\r | |
1417 | if (Variable.Type == Volatile) {\r | |
1418 | //\r | |
1419 | // Since we met the end of Volatile storage, we have parsed all the stores.\r | |
1420 | //\r | |
1421 | return EFI_NOT_FOUND;\r | |
1422 | }\r | |
1423 | \r | |
1424 | //\r | |
1425 | // End of NonVolatile, continue to parse Volatile\r | |
1426 | //\r | |
1427 | Variable.Type = Volatile;\r | |
1428 | Variable.StartPtr = (VARIABLE_HEADER *) ((VARIABLE_STORE_HEADER *) mGlobal->VariableBase[Volatile] + 1);\r | |
1429 | Variable.EndPtr = (VARIABLE_HEADER *) GetEndPointer ((VARIABLE_STORE_HEADER *) mGlobal->VariableBase[Volatile]);\r | |
1430 | \r | |
1431 | Variable.CurrPtr = Variable.StartPtr;\r | |
1432 | if (!IsValidVariableHeader (Variable.CurrPtr)) {\r | |
1433 | continue;\r | |
1434 | }\r | |
1435 | }\r | |
1436 | //\r | |
1437 | // Variable is found\r | |
1438 | //\r | |
1439 | if (IsValidVariableHeader (Variable.CurrPtr) &&\r | |
1440 | ((Variable.CurrPtr->State == VAR_ADDED) ||\r | |
1441 | (Variable.CurrPtr->State == (VAR_ADDED & VAR_IN_DELETED_TRANSITION)))) {\r | |
1442 | if (!EfiAtRuntime () || (Variable.CurrPtr->Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {\r | |
1443 | VarNameSize = Variable.CurrPtr->NameSize;\r | |
1444 | if (VarNameSize <= *VariableNameSize) {\r | |
1445 | CopyMem (\r | |
1446 | VariableName,\r | |
1447 | GET_VARIABLE_NAME_PTR (Variable.CurrPtr),\r | |
1448 | VarNameSize\r | |
1449 | );\r | |
1450 | CopyMem (\r | |
1451 | VendorGuid,\r | |
1452 | &Variable.CurrPtr->VendorGuid,\r | |
1453 | sizeof (EFI_GUID)\r | |
1454 | );\r | |
1455 | Status = EFI_SUCCESS;\r | |
1456 | } else {\r | |
1457 | Status = EFI_BUFFER_TOO_SMALL;\r | |
1458 | }\r | |
1459 | \r | |
1460 | *VariableNameSize = VarNameSize;\r | |
1461 | return Status;\r | |
1462 | }\r | |
1463 | }\r | |
1464 | \r | |
1465 | Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);\r | |
1466 | }\r | |
9071550e | 1467 | }\r |
1468 | \r | |
1469 | EFI_STATUS\r | |
1470 | EFIAPI\r | |
1471 | SetVariable (\r | |
1472 | IN CHAR16 *VariableName,\r | |
1473 | IN EFI_GUID *VendorGuid,\r | |
1474 | IN UINT32 Attributes,\r | |
1475 | IN UINTN DataSize,\r | |
1476 | IN VOID *Data\r | |
1477 | )\r | |
1478 | /*++\r | |
1479 | \r | |
1480 | Routine Description:\r | |
1481 | \r | |
1482 | This code sets variable in storage blocks (Volatile or Non-Volatile)\r | |
1483 | \r | |
1484 | Arguments:\r | |
1485 | \r | |
1486 | VariableName Name of Variable to be found\r | |
1487 | VendorGuid Variable vendor GUID\r | |
1488 | Attributes Attribute value of the variable found\r | |
1489 | DataSize Size of Data found. If size is less than the\r | |
1490 | data, this value contains the required size.\r | |
1491 | Data Data pointer\r | |
1492 | \r | |
1493 | Returns:\r | |
1494 | \r | |
1495 | EFI_INVALID_PARAMETER - Invalid parameter\r | |
1496 | EFI_SUCCESS - Set successfully\r | |
1497 | EFI_OUT_OF_RESOURCES - Resource not enough to set variable\r | |
1498 | EFI_NOT_FOUND - Not found\r | |
1499 | EFI_DEVICE_ERROR - Variable can not be saved due to hardware failure\r | |
1500 | EFI_WRITE_PROTECTED - Variable is read-only\r | |
1501 | \r | |
1502 | --*/\r | |
1503 | {\r | |
1504 | VARIABLE_POINTER_TRACK Variable;\r | |
1505 | EFI_STATUS Status;\r | |
a24b4043 | 1506 | \r |
9071550e | 1507 | //\r |
1508 | // Check input parameters\r | |
1509 | // \r | |
9071550e | 1510 | if (VariableName == NULL || VariableName[0] == 0 || VendorGuid == NULL) {\r |
1511 | return EFI_INVALID_PARAMETER;\r | |
1512 | }\r | |
1513 | \r | |
81c5255c | 1514 | if (DataSize != 0 && Data == NULL) {\r |
1515 | return EFI_INVALID_PARAMETER;\r | |
1516 | }\r | |
1517 | \r | |
ff197263 | 1518 | //\r |
1519 | // Not support authenticated variable write yet.\r | |
1520 | //\r | |
1521 | if ((Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS) != 0) {\r | |
1522 | return EFI_INVALID_PARAMETER;\r | |
1523 | }\r | |
1524 | \r | |
9071550e | 1525 | //\r |
1526 | // Make sure if runtime bit is set, boot service bit is set also\r | |
1527 | //\r | |
1528 | if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS) {\r | |
1529 | return EFI_INVALID_PARAMETER;\r | |
1530 | }\r | |
1531 | \r | |
9071550e | 1532 | //\r |
1533 | // The size of the VariableName, including the Unicode Null in bytes plus\r | |
d4577dce | 1534 | // the DataSize is limited to maximum size of PcdGet32 (PcdMaxHardwareErrorVariableSize)\r |
1535 | // bytes for HwErrRec, and PcdGet32 (PcdMaxVariableSize) bytes for the others.\r | |
9071550e | 1536 | //\r |
1537 | if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {\r | |
d4577dce | 1538 | if ((DataSize > PcdGet32(PcdMaxHardwareErrorVariableSize)) || \r |
1539 | (sizeof (VARIABLE_HEADER) + StrSize (VariableName) + DataSize > PcdGet32(PcdMaxHardwareErrorVariableSize))) {\r | |
9071550e | 1540 | return EFI_INVALID_PARAMETER;\r |
a24b4043 | 1541 | }\r |
1542 | //\r | |
1543 | // According to UEFI spec, HARDWARE_ERROR_RECORD variable name convention should be L"HwErrRecXXXX"\r | |
1544 | //\r | |
1545 | if (StrnCmp(VariableName, L"HwErrRec", StrLen(L"HwErrRec")) != 0) {\r | |
1546 | return EFI_INVALID_PARAMETER;\r | |
1547 | }\r | |
9071550e | 1548 | } else {\r |
d4577dce | 1549 | if ((DataSize > PcdGet32(PcdMaxVariableSize)) ||\r |
1550 | (sizeof (VARIABLE_HEADER) + StrSize (VariableName) + DataSize > PcdGet32(PcdMaxVariableSize))) {\r | |
9071550e | 1551 | return EFI_INVALID_PARAMETER;\r |
1552 | } \r | |
1553 | } \r | |
e5653d94 | 1554 | \r |
9071550e | 1555 | //\r |
1556 | // Check whether the input variable is already existed\r | |
1557 | //\r | |
9071550e | 1558 | Status = FindVariable (VariableName, VendorGuid, &Variable);\r |
1559 | \r | |
9071550e | 1560 | //\r |
a24b4043 | 1561 | // Hook the operation of setting PlatformLangCodes/PlatformLang and LangCodes/Lang\r |
9071550e | 1562 | //\r |
a24b4043 | 1563 | AutoUpdateLangVariable (VariableName, Data, DataSize);\r |
9071550e | 1564 | \r |
a24b4043 | 1565 | Status = UpdateVariable (VariableName, VendorGuid, Data, DataSize, Attributes, &Variable);\r |
9071550e | 1566 | \r |
a24b4043 | 1567 | return Status;\r |
9071550e | 1568 | }\r |
1569 | \r | |
9071550e | 1570 | EFI_STATUS\r |
1571 | EFIAPI\r | |
1572 | QueryVariableInfo (\r | |
1573 | IN UINT32 Attributes,\r | |
1574 | OUT UINT64 *MaximumVariableStorageSize,\r | |
1575 | OUT UINT64 *RemainingVariableStorageSize,\r | |
1576 | OUT UINT64 *MaximumVariableSize\r | |
1577 | )\r | |
1578 | /*++\r | |
1579 | \r | |
1580 | Routine Description:\r | |
1581 | \r | |
1582 | This code returns information about the EFI variables.\r | |
1583 | \r | |
1584 | Arguments:\r | |
1585 | \r | |
1586 | Attributes Attributes bitmask to specify the type of variables\r | |
1587 | on which to return information.\r | |
1588 | MaximumVariableStorageSize Pointer to the maximum size of the storage space available\r | |
1589 | for the EFI variables associated with the attributes specified.\r | |
1590 | RemainingVariableStorageSize Pointer to the remaining size of the storage space available\r | |
1591 | for the EFI variables associated with the attributes specified.\r | |
1592 | MaximumVariableSize Pointer to the maximum size of the individual EFI variables\r | |
1593 | associated with the attributes specified.\r | |
1594 | \r | |
1595 | Returns:\r | |
1596 | \r | |
1597 | EFI STATUS\r | |
1598 | EFI_INVALID_PARAMETER - An invalid combination of attribute bits was supplied.\r | |
1599 | EFI_SUCCESS - Query successfully.\r | |
1600 | EFI_UNSUPPORTED - The attribute is not supported on this platform.\r | |
1601 | \r | |
1602 | --*/\r | |
1603 | {\r | |
1604 | VARIABLE_HEADER *Variable;\r | |
1605 | VARIABLE_HEADER *NextVariable;\r | |
1606 | UINT64 VariableSize;\r | |
1607 | VARIABLE_STORE_HEADER *VariableStoreHeader;\r | |
a24b4043 | 1608 | UINT64 CommonVariableTotalSize;\r |
1609 | UINT64 HwErrVariableTotalSize;\r | |
1610 | \r | |
1611 | CommonVariableTotalSize = 0;\r | |
1612 | HwErrVariableTotalSize = 0;\r | |
9071550e | 1613 | \r |
1614 | if(MaximumVariableStorageSize == NULL || RemainingVariableStorageSize == NULL || MaximumVariableSize == NULL || Attributes == 0) {\r | |
1615 | return EFI_INVALID_PARAMETER;\r | |
1616 | }\r | |
1617 | \r | |
9071550e | 1618 | if((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == 0) {\r |
1619 | //\r | |
1620 | // Make sure the Attributes combination is supported by the platform.\r | |
1621 | //\r | |
1622 | return EFI_UNSUPPORTED; \r | |
ff197263 | 1623 | } else if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS) {\r |
9071550e | 1624 | //\r |
1625 | // Make sure if runtime bit is set, boot service bit is set also.\r | |
1626 | //\r | |
1627 | return EFI_INVALID_PARAMETER;\r | |
1628 | } else if (EfiAtRuntime () && !(Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {\r | |
1629 | //\r | |
1630 | // Make sure RT Attribute is set if we are in Runtime phase.\r | |
1631 | //\r | |
1632 | return EFI_INVALID_PARAMETER;\r | |
a24b4043 | 1633 | } else if ((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {\r |
1634 | //\r | |
1635 | // Make sure Hw Attribute is set with NV.\r | |
1636 | //\r | |
1637 | return EFI_INVALID_PARAMETER;\r | |
ff197263 | 1638 | } else if ((Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS) != 0) {\r |
1639 | //\r | |
1640 | // Not support authentiated variable write yet.\r | |
1641 | //\r | |
1642 | return EFI_UNSUPPORTED;\r | |
a24b4043 | 1643 | }\r |
9071550e | 1644 | \r |
1645 | VariableStoreHeader = (VARIABLE_STORE_HEADER *) mGlobal->VariableBase[\r | |
1646 | (Attributes & EFI_VARIABLE_NON_VOLATILE) ? NonVolatile : Volatile\r | |
1647 | ];\r | |
1648 | //\r | |
1649 | // Now let's fill *MaximumVariableStorageSize *RemainingVariableStorageSize\r | |
1650 | // with the storage size (excluding the storage header size).\r | |
1651 | //\r | |
1652 | *MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER);\r | |
9071550e | 1653 | \r |
9071550e | 1654 | //\r |
1655 | // Harware error record variable needs larger size.\r | |
1656 | //\r | |
a24b4043 | 1657 | if ((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {\r |
d4577dce | 1658 | *MaximumVariableStorageSize = PcdGet32(PcdHwErrStorageSize);\r |
1659 | *MaximumVariableSize = PcdGet32(PcdMaxHardwareErrorVariableSize) - sizeof (VARIABLE_HEADER);\r | |
a24b4043 | 1660 | } else {\r |
1661 | if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {\r | |
d4577dce | 1662 | ASSERT (PcdGet32(PcdHwErrStorageSize) < VariableStoreHeader->Size);\r |
1663 | *MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER) - PcdGet32(PcdHwErrStorageSize);\r | |
a24b4043 | 1664 | }\r |
1665 | \r | |
1666 | //\r | |
d4577dce | 1667 | // Let *MaximumVariableSize be PcdGet32(PcdMaxVariableSize) with the exception of the variable header size.\r |
a24b4043 | 1668 | //\r |
d4577dce | 1669 | *MaximumVariableSize = PcdGet32(PcdMaxVariableSize) - sizeof (VARIABLE_HEADER);\r |
9071550e | 1670 | }\r |
9071550e | 1671 | \r |
1672 | //\r | |
1673 | // Point to the starting address of the variables.\r | |
1674 | //\r | |
1675 | Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1);\r | |
1676 | \r | |
1677 | //\r | |
1678 | // Now walk through the related variable store.\r | |
1679 | //\r | |
a24b4043 | 1680 | while ((Variable < GetEndPointer (VariableStoreHeader)) && IsValidVariableHeader (Variable)) {\r |
9071550e | 1681 | NextVariable = GetNextVariablePtr (Variable);\r |
1682 | VariableSize = (UINT64) (UINTN) NextVariable - (UINT64) (UINTN) Variable;\r | |
1683 | \r | |
1684 | if (EfiAtRuntime ()) {\r | |
1685 | //\r | |
1686 | // we don't take the state of the variables in mind\r | |
1687 | // when calculating RemainingVariableStorageSize,\r | |
1688 | // since the space occupied by variables not marked with\r | |
1689 | // VAR_ADDED is not allowed to be reclaimed in Runtime.\r | |
1690 | //\r | |
a24b4043 | 1691 | if ((NextVariable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {\r |
1692 | HwErrVariableTotalSize += VariableSize;\r | |
1693 | } else {\r | |
1694 | CommonVariableTotalSize += VariableSize;\r | |
1695 | }\r | |
9071550e | 1696 | } else {\r |
1697 | //\r | |
1698 | // Only care about Variables with State VAR_ADDED,because\r | |
1699 | // the space not marked as VAR_ADDED is reclaimable now.\r | |
1700 | //\r | |
a24b4043 | 1701 | if ((Variable->State == VAR_ADDED) || (Variable->State == (VAR_ADDED & VAR_IN_DELETED_TRANSITION))) {\r |
1702 | if ((NextVariable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {\r | |
1703 | HwErrVariableTotalSize += VariableSize;\r | |
1704 | } else {\r | |
1705 | CommonVariableTotalSize += VariableSize;\r | |
1706 | }\r | |
9071550e | 1707 | }\r |
1708 | }\r | |
1709 | \r | |
1710 | //\r | |
1711 | // Go to the next one\r | |
1712 | //\r | |
1713 | Variable = NextVariable;\r | |
1714 | }\r | |
1715 | \r | |
a24b4043 | 1716 | if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD){\r |
1717 | *RemainingVariableStorageSize = *MaximumVariableStorageSize - HwErrVariableTotalSize;\r | |
1718 | } else {\r | |
1719 | *RemainingVariableStorageSize = *MaximumVariableStorageSize - CommonVariableTotalSize;\r | |
9071550e | 1720 | }\r |
1721 | \r | |
1722 | return EFI_SUCCESS;\r | |
1723 | }\r | |
9071550e | 1724 | \r |
1725 | EFI_STATUS\r | |
1726 | EFIAPI\r | |
1727 | VariableServiceInitialize (\r | |
1728 | IN EFI_HANDLE ImageHandle,\r | |
1729 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1730 | )\r | |
1731 | /*++\r | |
1732 | \r | |
1733 | Routine Description:\r | |
1734 | This function does initialization for variable services\r | |
1735 | \r | |
1736 | Arguments:\r | |
1737 | \r | |
1738 | ImageHandle - The firmware allocated handle for the EFI image.\r | |
1739 | SystemTable - A pointer to the EFI System Table.\r | |
1740 | \r | |
1741 | Returns:\r | |
1742 | \r | |
1743 | Status code.\r | |
1744 | \r | |
1745 | EFI_NOT_FOUND - Variable store area not found.\r | |
1746 | EFI_SUCCESS - Variable services successfully initialized.\r | |
1747 | \r | |
1748 | --*/\r | |
1749 | {\r | |
1750 | EFI_STATUS Status;\r | |
1751 | EFI_HANDLE NewHandle;\r | |
1752 | VS_DEV *Dev;\r | |
eb16e240 | 1753 | EFI_PEI_HOB_POINTERS GuidHob;\r |
a24b4043 | 1754 | VARIABLE_HEADER *Variable;\r |
9071550e | 1755 | VARIABLE_HEADER *NextVariable;\r |
1756 | VARIABLE_STORE_HEADER *VariableStoreHeader;\r | |
1757 | EFI_FLASH_MAP_FS_ENTRY_DATA *FlashMapEntryData;\r | |
1758 | EFI_FLASH_SUBAREA_ENTRY VariableStoreEntry;\r | |
9071550e | 1759 | UINT64 BaseAddress;\r |
1760 | UINT64 Length;\r | |
1761 | EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;\r | |
1762 | \r | |
1763 | Status = gBS->AllocatePool (\r | |
1764 | EfiRuntimeServicesData,\r | |
1765 | (UINTN) sizeof (VARIABLE_GLOBAL),\r | |
7c04a679 | 1766 | (VOID**) &mGlobal\r |
9071550e | 1767 | );\r |
1768 | if (EFI_ERROR (Status)) {\r | |
1769 | return Status;\r | |
1770 | }\r | |
1771 | \r | |
a24b4043 | 1772 | ZeroMem (mGlobal, (UINTN) sizeof (VARIABLE_GLOBAL));\r |
1773 | \r | |
eb16e240 | 1774 | GuidHob.Raw = GetHobList ();\r |
1775 | FlashMapEntryData = NULL;\r | |
1776 | while ((GuidHob.Raw = GetNextGuidHob (&gEfiFlashMapHobGuid, GuidHob.Raw)) != NULL) {\r | |
1777 | FlashMapEntryData = (EFI_FLASH_MAP_FS_ENTRY_DATA *) GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
9071550e | 1778 | if (FlashMapEntryData->AreaType == EFI_FLASH_AREA_EFI_VARIABLES) {\r |
1779 | break;\r | |
1780 | }\r | |
eb16e240 | 1781 | GuidHob.Raw = GET_NEXT_HOB (GuidHob); \r |
9071550e | 1782 | }\r |
1783 | \r | |
eb16e240 | 1784 | if (FlashMapEntryData == NULL) {\r |
1785 | DEBUG ((EFI_D_ERROR, "FSVariable: Could not find flash area for variable!\n"));\r | |
9071550e | 1786 | Status = EFI_NOT_FOUND;\r |
1787 | return Status;\r | |
1788 | }\r | |
be768885 | 1789 | \r |
394bbc59 | 1790 | CopyMem(\r |
1791 | (VOID*)&VariableStoreEntry,\r | |
1792 | (VOID*)&FlashMapEntryData->Entries[0],\r | |
1793 | sizeof(EFI_FLASH_SUBAREA_ENTRY)\r | |
1794 | );\r | |
9071550e | 1795 | \r |
1796 | //\r | |
1797 | // Mark the variable storage region of the FLASH as RUNTIME\r | |
1798 | //\r | |
1799 | BaseAddress = VariableStoreEntry.Base & (~EFI_PAGE_MASK);\r | |
1800 | Length = VariableStoreEntry.Length + (VariableStoreEntry.Base - BaseAddress);\r | |
1801 | Length = (Length + EFI_PAGE_SIZE - 1) & (~EFI_PAGE_MASK);\r | |
1802 | Status = gDS->GetMemorySpaceDescriptor (BaseAddress, &GcdDescriptor);\r | |
1803 | if (EFI_ERROR (Status)) {\r | |
1804 | Status = EFI_UNSUPPORTED;\r | |
1805 | return Status;\r | |
1806 | }\r | |
1807 | Status = gDS->SetMemorySpaceAttributes (\r | |
1808 | BaseAddress,\r | |
1809 | Length,\r | |
1810 | GcdDescriptor.Attributes | EFI_MEMORY_RUNTIME\r | |
1811 | );\r | |
1812 | if (EFI_ERROR (Status)) {\r | |
1813 | Status = EFI_UNSUPPORTED;\r | |
1814 | return Status;\r | |
1815 | }\r | |
7c04a679 | 1816 | \r |
9071550e | 1817 | Status = FileStorageConstructor (\r |
1818 | &mGlobal->VariableStore[NonVolatile], \r | |
1819 | &mGlobal->GoVirtualChildEvent[NonVolatile],\r | |
1820 | VariableStoreEntry.Base,\r | |
1821 | (UINT32) VariableStoreEntry.Length,\r | |
1822 | FlashMapEntryData->VolumeId,\r | |
1823 | FlashMapEntryData->FilePath\r | |
1824 | );\r | |
1825 | ASSERT_EFI_ERROR (Status);\r | |
1826 | \r | |
1827 | //\r | |
1828 | // Volatile Storage\r | |
1829 | //\r | |
1830 | Status = MemStorageConstructor (\r | |
1831 | &mGlobal->VariableStore[Volatile],\r | |
1832 | &mGlobal->GoVirtualChildEvent[Volatile],\r | |
1833 | VOLATILE_VARIABLE_STORE_SIZE\r | |
1834 | );\r | |
1835 | ASSERT_EFI_ERROR (Status);\r | |
1836 | \r | |
1837 | //\r | |
1838 | // Scratch\r | |
1839 | //\r | |
1840 | Status = gBS->AllocatePool (\r | |
1841 | EfiRuntimeServicesData,\r | |
1842 | VARIABLE_SCRATCH_SIZE,\r | |
1843 | &mGlobal->Scratch\r | |
1844 | );\r | |
1845 | ASSERT_EFI_ERROR (Status);\r | |
1846 | \r | |
1847 | //\r | |
1848 | // 1. NV Storage\r | |
1849 | //\r | |
1850 | Dev = DEV_FROM_THIS (mGlobal->VariableStore[NonVolatile]);\r | |
1851 | VariableStoreHeader = (VARIABLE_STORE_HEADER *) VAR_DATA_PTR (Dev);\r | |
1852 | if (GetVariableStoreStatus (VariableStoreHeader) == EfiValid) {\r | |
1853 | if (~VariableStoreHeader->Size == 0) {\r | |
1854 | VariableStoreHeader->Size = (UINT32) VariableStoreEntry.Length;\r | |
1855 | }\r | |
1856 | }\r | |
1857 | //\r | |
1858 | // Calculate LastVariableOffset\r | |
1859 | //\r | |
a24b4043 | 1860 | Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1);\r |
1861 | while (IsValidVariableHeader (Variable)) {\r | |
1862 | UINTN VariableSize = 0;\r | |
1863 | NextVariable = GetNextVariablePtr (Variable);\r | |
1864 | VariableSize = NextVariable - Variable;\r | |
1865 | if ((NextVariable->Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {\r | |
1866 | mGlobal->HwErrVariableTotalSize += HEADER_ALIGN (VariableSize);\r | |
1867 | } else {\r | |
1868 | mGlobal->CommonVariableTotalSize += HEADER_ALIGN (VariableSize);\r | |
1869 | }\r | |
1870 | Variable = NextVariable;\r | |
9071550e | 1871 | }\r |
a24b4043 | 1872 | \r |
1873 | mGlobal->LastVariableOffset[NonVolatile] = (UINTN) Variable - (UINTN) VariableStoreHeader;\r | |
1874 | mGlobal->VariableBase[NonVolatile] = VariableStoreHeader;\r | |
9071550e | 1875 | \r |
1876 | //\r | |
1877 | // Reclaim if remaining space is too small\r | |
1878 | //\r | |
1879 | if ((VariableStoreHeader->Size - mGlobal->LastVariableOffset[NonVolatile]) < VARIABLE_RECLAIM_THRESHOLD) {\r | |
1880 | Status = Reclaim (NonVolatile, NULL);\r | |
1881 | if (EFI_ERROR (Status)) {\r | |
1882 | //\r | |
1883 | // Reclaim error\r | |
1884 | // we cannot restore to original state\r | |
1885 | //\r | |
a24b4043 | 1886 | DEBUG ((EFI_D_ERROR, "FSVariable: Reclaim error (fatal error) - %r\n", Status));\r |
9071550e | 1887 | ASSERT_EFI_ERROR (Status);\r |
1888 | }\r | |
1889 | }\r | |
1890 | \r | |
1891 | //\r | |
1892 | // 2. Volatile Storage\r | |
1893 | //\r | |
1894 | Dev = DEV_FROM_THIS (mGlobal->VariableStore[Volatile]);\r | |
1895 | VariableStoreHeader = (VARIABLE_STORE_HEADER *) VAR_DATA_PTR (Dev);\r | |
1896 | mGlobal->VariableBase[Volatile] = VAR_DATA_PTR (Dev); \r | |
1897 | mGlobal->LastVariableOffset[Volatile] = sizeof (VARIABLE_STORE_HEADER);\r | |
1898 | //\r | |
1899 | // init store_header & body in memory.\r | |
1900 | //\r | |
1901 | mGlobal->VariableStore[Volatile]->Erase (mGlobal->VariableStore[Volatile]);\r | |
1902 | mGlobal->VariableStore[Volatile]->Write (\r | |
1903 | mGlobal->VariableStore[Volatile],\r | |
1904 | 0,\r | |
1905 | sizeof (VARIABLE_STORE_HEADER),\r | |
1906 | &mStoreHeaderTemplate\r | |
1907 | );\r | |
1908 | \r | |
1909 | \r | |
3ffa0f1f | 1910 | SystemTable->RuntimeServices->GetVariable = DuetGetVariable;\r |
9071550e | 1911 | SystemTable->RuntimeServices->GetNextVariableName = GetNextVariableName;\r |
1912 | SystemTable->RuntimeServices->SetVariable = SetVariable;\r | |
1913 | \r | |
9071550e | 1914 | SystemTable->RuntimeServices->QueryVariableInfo = QueryVariableInfo;\r |
9071550e | 1915 | \r |
1916 | //\r | |
1917 | // Now install the Variable Runtime Architectural Protocol on a new handle\r | |
1918 | //\r | |
1919 | NewHandle = NULL;\r | |
1920 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1921 | &NewHandle,\r | |
1922 | &gEfiVariableArchProtocolGuid,\r | |
1923 | NULL,\r | |
1924 | &gEfiVariableWriteArchProtocolGuid,\r | |
1925 | NULL,\r | |
1926 | NULL\r | |
1927 | );\r | |
1928 | ASSERT_EFI_ERROR (Status);\r | |
1929 | \r | |
1930 | return Status;\r | |
9071550e | 1931 | }\r |
1932 | \r | |
1933 | \r | |
1934 | \r | |
9071550e | 1935 | VOID\r |
1936 | EFIAPI\r | |
e56dd2ce | 1937 | OnVirtualAddressChangeFsv (\r |
9071550e | 1938 | IN EFI_EVENT Event,\r |
1939 | IN VOID *Context\r | |
1940 | )\r | |
1941 | {\r | |
1942 | UINTN Index;\r | |
1943 | \r | |
1944 | for (Index = 0; Index < MaxType; Index++) {\r | |
1945 | mGlobal->GoVirtualChildEvent[Index] (Event, mGlobal->VariableStore[Index]);\r | |
7c04a679 | 1946 | EfiConvertPointer (0, (VOID**) &mGlobal->VariableStore[Index]);\r |
9071550e | 1947 | EfiConvertPointer (0, &mGlobal->VariableBase[Index]);\r |
1948 | }\r | |
d7f79118 RN |
1949 | EfiConvertPointer (0, (VOID **) &mGlobal->PlatformLangCodes);\r |
1950 | EfiConvertPointer (0, (VOID **) &mGlobal->LangCodes);\r | |
1951 | EfiConvertPointer (0, (VOID **) &mGlobal->PlatformLang);\r | |
9071550e | 1952 | EfiConvertPointer (0, &mGlobal->Scratch);\r |
7c04a679 | 1953 | EfiConvertPointer (0, (VOID**) &mGlobal);\r |
9071550e | 1954 | }\r |