]>
Commit | Line | Data |
---|---|---|
80408db0 | 1 | /** @file\r |
2ab6330e | 2 | Help functions used by PCD DXE driver.\r |
80408db0 | 3 | \r |
4 | Copyright (c) 2006 - 2007, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
80408db0 | 13 | **/\r |
80408db0 | 14 | \r |
15 | #include "Service.h"\r | |
16 | \r | |
80408db0 | 17 | PCD_DATABASE * mPcdDatabase;\r |
18 | \r | |
19 | LIST_ENTRY *mCallbackFnTable;\r | |
20 | \r | |
2ab6330e | 21 | /**\r |
22 | Get the PCD entry pointer in PCD database.\r | |
23 | \r | |
24 | This routine will visit PCD database to find the PCD entry according to given\r | |
25 | token number. The given token number is autogened by build tools and it will be \r | |
26 | translated to local token number. Local token number contains PCD's type and \r | |
27 | offset of PCD entry in PCD database.\r | |
28 | \r | |
29 | @param TokenNumber Token's number, it is autogened by build tools\r | |
30 | @param GetSize The size of token's value\r | |
31 | \r | |
32 | @return PCD entry pointer in PCD database\r | |
33 | \r | |
34 | **/\r | |
80408db0 | 35 | VOID *\r |
36 | GetWorker (\r | |
2ab6330e | 37 | IN UINTN TokenNumber,\r |
38 | IN UINTN GetSize\r | |
80408db0 | 39 | )\r |
40 | {\r | |
41 | UINT32 *LocalTokenNumberTable;\r | |
42 | EFI_GUID *GuidTable;\r | |
43 | UINT16 *StringTable;\r | |
44 | EFI_GUID *Guid;\r | |
45 | UINT16 *Name;\r | |
46 | VARIABLE_HEAD *VariableHead;\r | |
47 | UINT8 *VaraiableDefaultBuffer;\r | |
48 | UINT8 *Data;\r | |
49 | VPD_HEAD *VpdHead;\r | |
50 | UINT8 *PcdDb;\r | |
51 | VOID *RetPtr;\r | |
52 | UINTN MaxSize;\r | |
53 | UINTN TmpTokenNumber;\r | |
54 | UINTN DataSize;\r | |
55 | EFI_STATUS Status;\r | |
56 | UINT32 LocalTokenNumber;\r | |
57 | UINT32 Offset;\r | |
58 | UINT16 StringTableIdx; \r | |
59 | BOOLEAN IsPeiDb;\r | |
60 | \r | |
61 | //\r | |
62 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
63 | //\r | |
64 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
65 | \r | |
66 | RetPtr = NULL;\r | |
67 | //\r | |
68 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
69 | // We have to decrement TokenNumber by 1 to make it usable\r | |
70 | // as the array index.\r | |
71 | //\r | |
72 | TokenNumber--;\r | |
73 | \r | |
74 | TmpTokenNumber = TokenNumber;\r | |
75 | \r | |
76 | //\r | |
77 | // PCD_TOTAL_TOKEN_NUMBER is a auto-generated constant.\r | |
78 | // It could be zero. EBC compiler is very choosy. It may\r | |
79 | // report warning. So we add 1 in each size of the \r | |
80 | // comparison.\r | |
81 | //\r | |
82 | ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);\r | |
83 | \r | |
84 | ASSERT ((GetSize == DxePcdGetSize (TokenNumber + 1)) || (GetSize == 0));\r | |
85 | \r | |
86 | // EBC compiler is very choosy. It may report warning about comparison\r | |
87 | // between UINTN and 0 . So we add 1 in each size of the \r | |
88 | // comparison.\r | |
89 | IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1) ? TRUE : FALSE);\r | |
90 | \r | |
91 | LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable : \r | |
92 | mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r | |
93 | \r | |
94 | TokenNumber = IsPeiDb ? TokenNumber :\r | |
95 | TokenNumber - PEI_LOCAL_TOKEN_NUMBER;\r | |
96 | \r | |
97 | LocalTokenNumber = LocalTokenNumberTable[TokenNumber];\r | |
98 | \r | |
99 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
100 | if (GetSize == 0) {\r | |
101 | GetPtrTypeSize (TmpTokenNumber, &MaxSize);\r | |
102 | } else {\r | |
103 | MaxSize = GetSize;\r | |
104 | }\r | |
105 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb);\r | |
106 | }\r | |
107 | \r | |
108 | PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb);\r | |
109 | StringTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.StringTable :\r | |
110 | mPcdDatabase->DxeDb.Init.StringTable;\r | |
111 | \r | |
112 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
113 | \r | |
114 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
115 | case PCD_TYPE_VPD:\r | |
116 | VpdHead = (VPD_HEAD *) ((UINT8 *) PcdDb + Offset);\r | |
117 | RetPtr = (VOID *) (UINTN) (FixedPcdGet32(PcdVpdBaseAddress) + VpdHead->Offset);\r | |
118 | break;\r | |
119 | \r | |
120 | case PCD_TYPE_HII:\r | |
121 | GuidTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.GuidTable :\r | |
122 | mPcdDatabase->DxeDb.Init.GuidTable;\r | |
123 | \r | |
124 | VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r | |
125 | \r | |
126 | Guid = &(GuidTable[VariableHead->GuidTableIndex]);\r | |
127 | Name = &(StringTable[VariableHead->StringIndex]);\r | |
128 | VaraiableDefaultBuffer = (UINT8 *) PcdDb + VariableHead->DefaultValueOffset;\r | |
129 | \r | |
130 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
131 | if (Status == EFI_SUCCESS) {\r | |
132 | if (GetSize == 0) {\r | |
133 | //\r | |
134 | // It is a pointer type. So get the MaxSize reserved for\r | |
135 | // this PCD entry.\r | |
136 | //\r | |
137 | GetPtrTypeSize (TmpTokenNumber, &GetSize);\r | |
138 | }\r | |
139 | CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize);\r | |
140 | FreePool (Data);\r | |
141 | }\r | |
142 | //\r | |
143 | // If the operation is successful, we copy the data\r | |
144 | // to the default value buffer in the PCD Database.\r | |
145 | // So that we can free the Data allocated in GetHiiVariable.\r | |
146 | //\r | |
147 | //\r | |
148 | // If the operation is not successful, \r | |
149 | // Return 1) either the default value specified by Platform Integrator \r | |
150 | // 2) Or the value Set by a PCD set operation.\r | |
151 | //\r | |
152 | RetPtr = (VOID *) VaraiableDefaultBuffer;\r | |
153 | break;\r | |
154 | \r | |
155 | case PCD_TYPE_STRING:\r | |
156 | StringTableIdx = (UINT16) *((UINT8 *) PcdDb + Offset);\r | |
157 | RetPtr = (VOID *) &StringTable[StringTableIdx];\r | |
158 | break;\r | |
159 | \r | |
160 | case PCD_TYPE_DATA:\r | |
161 | RetPtr = (VOID *) ((UINT8 *) PcdDb + Offset);\r | |
162 | break;\r | |
163 | \r | |
164 | default:\r | |
165 | ASSERT (FALSE);\r | |
166 | break;\r | |
167 | \r | |
168 | }\r | |
169 | \r | |
170 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
171 | \r | |
172 | return RetPtr;\r | |
173 | \r | |
174 | }\r | |
175 | \r | |
2ab6330e | 176 | /**\r |
177 | Register the callback function for a PCD entry.\r | |
178 | \r | |
179 | This routine will register a callback function to a PCD entry by given token number\r | |
180 | and token space guid.\r | |
181 | \r | |
182 | @param TokenNumber PCD token's number, it is autogened by build tools.\r | |
183 | @param Guid PCD token space's guid, \r | |
184 | if not NULL, this PCD is dynamicEx type PCD.\r | |
185 | @param CallBackFunction Callback function pointer\r | |
80408db0 | 186 | \r |
2ab6330e | 187 | @return EFI_SUCCESS Always success for registering callback function.\r |
80408db0 | 188 | \r |
2ab6330e | 189 | **/\r |
80408db0 | 190 | EFI_STATUS\r |
191 | DxeRegisterCallBackWorker (\r | |
192 | IN UINTN TokenNumber,\r | |
2ab6330e | 193 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
80408db0 | 194 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r |
195 | )\r | |
196 | {\r | |
197 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
198 | LIST_ENTRY *ListHead;\r | |
199 | LIST_ENTRY *ListNode;\r | |
200 | \r | |
201 | if (Guid != NULL) {\r | |
202 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r | |
203 | }\r | |
204 | \r | |
205 | //\r | |
206 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
207 | // We have to decrement TokenNumber by 1 to make it usable\r | |
208 | // as the array index.\r | |
209 | //\r | |
210 | TokenNumber--;\r | |
211 | \r | |
212 | ListHead = &mCallbackFnTable[TokenNumber];\r | |
213 | ListNode = GetFirstNode (ListHead);\r | |
214 | \r | |
215 | while (ListNode != ListHead) {\r | |
216 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
217 | \r | |
218 | if (FnTableEntry->CallbackFn == CallBackFunction) {\r | |
219 | //\r | |
220 | // We only allow a Callback function to be register once\r | |
221 | // for a TokenNumber. So just return EFI_SUCCESS\r | |
222 | //\r | |
223 | return EFI_SUCCESS;\r | |
224 | }\r | |
225 | ListNode = GetNextNode (ListHead, ListNode);\r | |
226 | }\r | |
227 | \r | |
228 | FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY));\r | |
229 | ASSERT (FnTableEntry != NULL);\r | |
230 | \r | |
231 | FnTableEntry->CallbackFn = CallBackFunction;\r | |
232 | InsertTailList (ListHead, &FnTableEntry->Node);\r | |
233 | \r | |
234 | return EFI_SUCCESS;\r | |
235 | }\r | |
236 | \r | |
2ab6330e | 237 | /**\r |
238 | UnRegister the callback function for a PCD entry.\r | |
80408db0 | 239 | \r |
2ab6330e | 240 | This routine will unregister a callback function to a PCD entry by given token number\r |
241 | and token space guid.\r | |
80408db0 | 242 | \r |
2ab6330e | 243 | @param TokenNumber PCD token's number, it is autogened by build tools.\r |
244 | @param Guid PCD token space's guid.\r | |
245 | if not NULL, this PCD is dynamicEx type PCD.\r | |
246 | @param CallBackFunction Callback function pointer\r | |
80408db0 | 247 | \r |
2ab6330e | 248 | @retval EFI_SUCCESS Callback function is success to be unregister.\r |
249 | @retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number.\r | |
250 | **/\r | |
80408db0 | 251 | EFI_STATUS\r |
252 | DxeUnRegisterCallBackWorker (\r | |
253 | IN UINTN TokenNumber,\r | |
2ab6330e | 254 | IN CONST EFI_GUID *Guid, OPTIONAL\r |
80408db0 | 255 | IN PCD_PROTOCOL_CALLBACK CallBackFunction\r |
256 | )\r | |
257 | {\r | |
258 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
259 | LIST_ENTRY *ListHead;\r | |
260 | LIST_ENTRY *ListNode;\r | |
261 | \r | |
262 | if (Guid != NULL) {\r | |
263 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber);\r | |
264 | }\r | |
265 | \r | |
266 | //\r | |
267 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
268 | // We have to decrement TokenNumber by 1 to make it usable\r | |
269 | // as the array index.\r | |
270 | //\r | |
271 | TokenNumber--;\r | |
272 | \r | |
273 | ListHead = &mCallbackFnTable[TokenNumber];\r | |
274 | ListNode = GetFirstNode (ListHead);\r | |
275 | \r | |
276 | while (ListNode != ListHead) {\r | |
277 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
278 | \r | |
279 | if (FnTableEntry->CallbackFn == CallBackFunction) {\r | |
280 | //\r | |
281 | // We only allow a Callback function to be register once\r | |
282 | // for a TokenNumber. So we can safely remove the Node from\r | |
283 | // the Link List and return EFI_SUCCESS.\r | |
284 | //\r | |
285 | RemoveEntryList (ListNode);\r | |
286 | FreePool (FnTableEntry);\r | |
287 | \r | |
288 | return EFI_SUCCESS;\r | |
289 | }\r | |
290 | ListNode = GetNextNode (ListHead, ListNode);\r | |
291 | }\r | |
292 | \r | |
293 | return EFI_INVALID_PARAMETER;\r | |
294 | }\r | |
295 | \r | |
2ab6330e | 296 | /**\r |
297 | Get next token number in given token space.\r | |
298 | \r | |
299 | This routine is used for dynamicEx type PCD. It will firstly scan token space\r | |
300 | table to get token space according to given token space guid. Then scan given \r | |
301 | token number in found token space, if found, then return next token number in \r | |
302 | this token space.\r | |
303 | \r | |
304 | @param Guid Token space guid. Next token number will be scaned in \r | |
305 | this token space.\r | |
306 | @param TokenNumber Token number. \r | |
307 | If PCD_INVALID_TOKEN_NUMBER, return first token number in \r | |
308 | token space table.\r | |
309 | If not PCD_INVALID_TOKEN_NUMBER, return next token number\r | |
310 | in token space table.\r | |
311 | @param GuidTable Token space guid table. It will be used for scan token space\r | |
312 | by given token space guid.\r | |
313 | @param SizeOfGuidTable The size of guid table.\r | |
314 | @param ExMapTable DynamicEx token number mapping table.\r | |
315 | @param SizeOfExMapTable The size of dynamicEx token number mapping table.\r | |
316 | \r | |
317 | @retval EFI_NOT_FOUND Can not given token space or token number.\r | |
318 | @retval EFI_SUCCESS Success to get next token number.\r | |
80408db0 | 319 | \r |
2ab6330e | 320 | **/\r |
80408db0 | 321 | EFI_STATUS\r |
322 | ExGetNextTokeNumber (\r | |
323 | IN CONST EFI_GUID *Guid,\r | |
324 | IN OUT UINTN *TokenNumber,\r | |
325 | IN EFI_GUID *GuidTable,\r | |
326 | IN UINTN SizeOfGuidTable,\r | |
327 | IN DYNAMICEX_MAPPING *ExMapTable,\r | |
328 | IN UINTN SizeOfExMapTable\r | |
329 | )\r | |
330 | {\r | |
331 | EFI_GUID *MatchGuid;\r | |
2ab6330e | 332 | UINTN Index;\r |
80408db0 | 333 | UINTN GuidTableIdx;\r |
334 | BOOLEAN Found;\r | |
335 | \r | |
2ab6330e | 336 | //\r |
337 | // Scan token space guid \r | |
338 | // \r | |
80408db0 | 339 | MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid);\r |
340 | if (MatchGuid == NULL) {\r | |
341 | return EFI_NOT_FOUND;\r | |
342 | }\r | |
343 | \r | |
2ab6330e | 344 | //\r |
345 | // Find the token space table in dynamicEx mapping table.\r | |
346 | //\r | |
80408db0 | 347 | Found = FALSE;\r |
348 | GuidTableIdx = MatchGuid - GuidTable;\r | |
2ab6330e | 349 | for (Index = 0; Index < SizeOfExMapTable; Index++) {\r |
350 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
80408db0 | 351 | Found = TRUE;\r |
352 | break;\r | |
353 | }\r | |
354 | }\r | |
355 | \r | |
356 | if (Found) {\r | |
2ab6330e | 357 | //\r |
358 | // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first\r | |
359 | // token number in found token space.\r | |
360 | //\r | |
80408db0 | 361 | if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
2ab6330e | 362 | *TokenNumber = ExMapTable[Index].ExTokenNumber;\r |
80408db0 | 363 | return EFI_SUCCESS;\r |
364 | }\r | |
365 | \r | |
2ab6330e | 366 | for ( ; Index < SizeOfExMapTable; Index++) {\r |
367 | if (ExMapTable[Index].ExTokenNumber == *TokenNumber) {\r | |
368 | Index ++;\r | |
369 | if (Index == SizeOfExMapTable) {\r | |
80408db0 | 370 | //\r |
371 | // Exceed the length of ExMap Table\r | |
372 | //\r | |
373 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r | |
374 | return EFI_SUCCESS;\r | |
2ab6330e | 375 | } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r |
80408db0 | 376 | //\r |
377 | // Found the next match\r | |
378 | //\r | |
2ab6330e | 379 | *TokenNumber = ExMapTable[Index].ExTokenNumber;\r |
80408db0 | 380 | return EFI_SUCCESS;\r |
381 | } else {\r | |
382 | //\r | |
383 | // Guid has been changed. It is the next Token Space Guid.\r | |
384 | // We should flag no more TokenNumber.\r | |
385 | //\r | |
386 | *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r | |
387 | return EFI_SUCCESS;\r | |
388 | }\r | |
389 | }\r | |
390 | }\r | |
391 | }\r | |
392 | \r | |
393 | return EFI_NOT_FOUND;\r | |
394 | }\r | |
80408db0 | 395 | \r |
396 | \r | |
2ab6330e | 397 | /**\r |
398 | Initialize the PCD database in DXE phase.\r | |
399 | \r | |
400 | PCD database in DXE phase also contains PCD database in PEI phase which is copied\r | |
401 | from GUID Hob.\r | |
80408db0 | 402 | \r |
2ab6330e | 403 | **/\r |
80408db0 | 404 | VOID\r |
405 | BuildPcdDxeDataBase (\r | |
406 | VOID\r | |
407 | )\r | |
408 | {\r | |
409 | PEI_PCD_DATABASE *PeiDatabase;\r | |
410 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
2ab6330e | 411 | UINTN Index;\r |
80408db0 | 412 | \r |
413 | mPcdDatabase = AllocateZeroPool (sizeof(PCD_DATABASE));\r | |
414 | ASSERT (mPcdDatabase != NULL);\r | |
415 | \r | |
416 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
417 | if (GuidHob != NULL) {\r | |
418 | \r | |
419 | //\r | |
420 | // We will copy over the PEI phase's PCD Database.\r | |
421 | // \r | |
422 | // If no PEIMs use dynamic Pcd Entry, the Pcd Service PEIM\r | |
423 | // should not be included at all. So the GuidHob could\r | |
424 | // be NULL. If it is NULL, we just copy over the DXE Default\r | |
425 | // Value to PCD Database.\r | |
426 | //\r | |
427 | \r | |
428 | PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
429 | //\r | |
430 | // Copy PCD Entries refereneced in PEI phase to PCD DATABASE\r | |
431 | //\r | |
432 | CopyMem (&mPcdDatabase->PeiDb, PeiDatabase, sizeof (PEI_PCD_DATABASE));\r | |
433 | }\r | |
434 | \r | |
435 | //\r | |
436 | // Copy PCD Entries with default value to PCD DATABASE\r | |
437 | //\r | |
438 | CopyMem (&mPcdDatabase->DxeDb.Init, &gDXEPcdDbInit, sizeof(DXE_PCD_DATABASE_INIT));\r | |
439 | \r | |
440 | \r | |
441 | //\r | |
442 | // Initialized the Callback Function Table\r | |
443 | //\r | |
444 | \r | |
445 | mCallbackFnTable = AllocateZeroPool (PCD_TOTAL_TOKEN_NUMBER * sizeof (LIST_ENTRY));\r | |
446 | \r | |
447 | // EBC compiler is very choosy. It may report warning about comparison\r | |
448 | // between UINTN and 0 . So we add 1 in each size of the \r | |
449 | // comparison.\r | |
2ab6330e | 450 | for (Index = 0; Index + 1 < PCD_TOTAL_TOKEN_NUMBER + 1; Index++) {\r |
451 | InitializeListHead (&mCallbackFnTable[Index]);\r | |
80408db0 | 452 | }\r |
80408db0 | 453 | }\r |
454 | \r | |
2ab6330e | 455 | /**\r |
456 | Get Variable which contains HII type PCD entry.\r | |
80408db0 | 457 | \r |
2ab6330e | 458 | @param VariableGuid Variable's guid\r |
459 | @param VariableName Variable's unicode name string\r | |
460 | @param VariableData Variable's data pointer, \r | |
461 | @param VariableSize Variable's size.\r | |
80408db0 | 462 | \r |
2ab6330e | 463 | @return the status of gRT->GetVariable\r |
464 | **/\r | |
80408db0 | 465 | EFI_STATUS\r |
466 | GetHiiVariable (\r | |
467 | IN EFI_GUID *VariableGuid,\r | |
468 | IN UINT16 *VariableName,\r | |
469 | OUT UINT8 **VariableData,\r | |
470 | OUT UINTN *VariableSize\r | |
471 | )\r | |
472 | {\r | |
473 | UINTN Size;\r | |
474 | EFI_STATUS Status;\r | |
475 | UINT8 *Buffer;\r | |
476 | \r | |
477 | Size = 0;\r | |
478 | Buffer = NULL;\r | |
479 | \r | |
2ab6330e | 480 | //\r |
481 | // Firstly get the real size of HII variable\r | |
482 | //\r | |
80408db0 | 483 | Status = gRT->GetVariable (\r |
484 | (UINT16 *)VariableName,\r | |
485 | VariableGuid,\r | |
486 | NULL,\r | |
487 | &Size,\r | |
488 | Buffer\r | |
489 | );\r | |
490 | \r | |
2ab6330e | 491 | //\r |
492 | // Allocate buffer to hold whole variable data according to variable size.\r | |
493 | //\r | |
80408db0 | 494 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
495 | Buffer = (UINT8 *) AllocatePool (Size);\r | |
496 | \r | |
497 | ASSERT (Buffer != NULL);\r | |
498 | \r | |
499 | Status = gRT->GetVariable (\r | |
500 | VariableName,\r | |
501 | VariableGuid,\r | |
502 | NULL,\r | |
503 | &Size,\r | |
504 | Buffer\r | |
505 | );\r | |
506 | \r | |
507 | ASSERT (Status == EFI_SUCCESS);\r | |
508 | *VariableData = Buffer;\r | |
509 | *VariableSize = Size;\r | |
510 | }\r | |
511 | \r | |
512 | return Status;\r | |
513 | }\r | |
514 | \r | |
2ab6330e | 515 | /**\r |
516 | Find the local token number according to system SKU ID.\r | |
517 | \r | |
518 | @param LocalTokenNumber PCD token number\r | |
519 | @param Size The size of PCD entry.\r | |
520 | @param IsPeiDb If TRUE, the PCD entry is initialized in PEI phase.\r | |
521 | If False, the PCD entry is initialized in DXE phase.\r | |
522 | \r | |
523 | @return Token number according to system SKU ID.\r | |
80408db0 | 524 | \r |
2ab6330e | 525 | **/\r |
80408db0 | 526 | UINT32\r |
527 | GetSkuEnabledTokenNumber (\r | |
528 | UINT32 LocalTokenNumber,\r | |
529 | UINTN Size,\r | |
530 | BOOLEAN IsPeiDb\r | |
531 | ) \r | |
532 | {\r | |
533 | SKU_HEAD *SkuHead;\r | |
534 | SKU_ID *SkuIdTable;\r | |
2ab6330e | 535 | INTN Index;\r |
80408db0 | 536 | UINT8 *Value;\r |
537 | SKU_ID *PhaseSkuIdTable;\r | |
538 | UINT8 *PcdDb;\r | |
539 | \r | |
540 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r | |
541 | \r | |
542 | PcdDb = IsPeiDb ? (UINT8 *) &mPcdDatabase->PeiDb : (UINT8 *) &mPcdDatabase->DxeDb;\r | |
543 | \r | |
544 | SkuHead = (SKU_HEAD *) (PcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
545 | Value = (UINT8 *) (PcdDb + SkuHead->SkuDataStartOffset); \r | |
546 | \r | |
547 | PhaseSkuIdTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.SkuIdTable :\r | |
548 | mPcdDatabase->DxeDb.Init.SkuIdTable;\r | |
549 | \r | |
550 | SkuIdTable = &PhaseSkuIdTable[SkuHead->SkuIdTableOffset];\r | |
551 | \r | |
2ab6330e | 552 | //\r |
553 | // Find the current system's SKU ID entry in SKU ID table.\r | |
554 | //\r | |
555 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r | |
556 | if (mPcdDatabase->PeiDb.Init.SystemSkuId == SkuIdTable[Index + 1]) {\r | |
80408db0 | 557 | break;\r |
558 | }\r | |
559 | }\r | |
2ab6330e | 560 | ASSERT (Index < SkuIdTable[0]);\r |
80408db0 | 561 | \r |
562 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
563 | case PCD_TYPE_VPD:\r | |
2ab6330e | 564 | Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);\r |
80408db0 | 565 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_VPD);\r |
566 | \r | |
567 | case PCD_TYPE_HII:\r | |
2ab6330e | 568 | Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r |
80408db0 | 569 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII);\r |
570 | \r | |
571 | case PCD_TYPE_STRING:\r | |
2ab6330e | 572 | Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);\r |
80408db0 | 573 | return (UINT32) ((Value - PcdDb) | PCD_TYPE_STRING);\r |
574 | \r | |
575 | case PCD_TYPE_DATA:\r | |
2ab6330e | 576 | Value += Size * Index;\r |
80408db0 | 577 | return (UINT32) (Value - PcdDb);\r |
578 | \r | |
579 | default:\r | |
580 | ASSERT (FALSE);\r | |
581 | }\r | |
582 | \r | |
583 | ASSERT (FALSE);\r | |
584 | \r | |
585 | return 0;\r | |
586 | \r | |
587 | }\r | |
588 | \r | |
2ab6330e | 589 | /**\r |
590 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r | |
591 | has registered callback function.\r | |
80408db0 | 592 | \r |
2ab6330e | 593 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r |
594 | type PCD.\r | |
595 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
596 | PCD.\r | |
597 | @param TokenNumber PCD token number generated by build tools.\r | |
598 | @param Data Value want to be set for this PCD entry\r | |
599 | @param Size The size of value\r | |
80408db0 | 600 | \r |
2ab6330e | 601 | **/\r |
80408db0 | 602 | VOID\r |
603 | InvokeCallbackOnSet (\r | |
604 | UINT32 ExTokenNumber,\r | |
605 | CONST EFI_GUID *Guid, OPTIONAL\r | |
606 | UINTN TokenNumber,\r | |
607 | VOID *Data,\r | |
608 | UINTN Size\r | |
609 | )\r | |
610 | {\r | |
611 | CALLBACK_FN_ENTRY *FnTableEntry;\r | |
612 | LIST_ENTRY *ListHead;\r | |
613 | LIST_ENTRY *ListNode;\r | |
614 | \r | |
615 | //\r | |
616 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
617 | // We have to decrement TokenNumber by 1 to make it usable\r | |
618 | // as the array index.\r | |
619 | //\r | |
620 | TokenNumber--;\r | |
621 | \r | |
622 | ListHead = &mCallbackFnTable[TokenNumber];\r | |
623 | ListNode = GetFirstNode (ListHead);\r | |
624 | \r | |
625 | while (ListNode != ListHead) {\r | |
626 | FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node);\r | |
627 | \r | |
628 | FnTableEntry->CallbackFn(Guid, \r | |
629 | (Guid == NULL) ? TokenNumber : ExTokenNumber,\r | |
630 | Data,\r | |
631 | Size);\r | |
632 | \r | |
633 | ListNode = GetNextNode (ListHead, ListNode);\r | |
634 | }\r | |
635 | \r | |
636 | return;\r | |
637 | }\r | |
638 | \r | |
639 | \r | |
2ab6330e | 640 | /**\r |
641 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
642 | \r | |
643 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
644 | @param Data Value want to be set for PCD entry\r | |
645 | @param Size Size of value.\r | |
646 | \r | |
647 | @return status of SetWorker.\r | |
648 | \r | |
649 | **/\r | |
80408db0 | 650 | EFI_STATUS\r |
651 | SetValueWorker (\r | |
652 | IN UINTN TokenNumber,\r | |
653 | IN VOID *Data,\r | |
654 | IN UINTN Size\r | |
655 | )\r | |
656 | {\r | |
657 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
658 | }\r | |
659 | \r | |
660 | \r | |
2ab6330e | 661 | /**\r |
662 | Set value for an PCD entry\r | |
663 | \r | |
664 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
665 | @param Data Value want to be set for PCD entry\r | |
666 | @param Size Size of value.\r | |
667 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
668 | If False, the type of PCD entry's value is not Pointer.\r | |
669 | \r | |
670 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
671 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
672 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r | |
673 | range of UINT8, UINT16, UINT32, UINT64\r | |
674 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r | |
675 | **/\r | |
80408db0 | 676 | EFI_STATUS\r |
677 | SetWorker (\r | |
678 | IN UINTN TokenNumber,\r | |
679 | IN VOID *Data,\r | |
680 | IN OUT UINTN *Size,\r | |
681 | IN BOOLEAN PtrType\r | |
682 | )\r | |
683 | {\r | |
684 | UINT32 *LocalTokenNumberTable;\r | |
685 | BOOLEAN IsPeiDb;\r | |
686 | UINT32 LocalTokenNumber;\r | |
687 | EFI_GUID *GuidTable;\r | |
688 | UINT16 *StringTable;\r | |
689 | EFI_GUID *Guid;\r | |
690 | UINT16 *Name;\r | |
691 | UINTN VariableOffset;\r | |
692 | VOID *InternalData;\r | |
693 | VARIABLE_HEAD *VariableHead;\r | |
694 | UINTN Offset;\r | |
695 | UINT8 *PcdDb;\r | |
696 | EFI_STATUS Status;\r | |
697 | UINTN MaxSize;\r | |
698 | UINTN TmpTokenNumber;\r | |
699 | \r | |
700 | //\r | |
701 | // Aquire lock to prevent reentrance from TPL_CALLBACK level\r | |
702 | //\r | |
703 | EfiAcquireLock (&mPcdDatabaseLock);\r | |
704 | \r | |
705 | //\r | |
706 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
707 | // We have to decrement TokenNumber by 1 to make it usable\r | |
708 | // as the array index.\r | |
709 | //\r | |
710 | TokenNumber--;\r | |
711 | \r | |
712 | TmpTokenNumber = TokenNumber;\r | |
713 | \r | |
2ab6330e | 714 | //\r |
80408db0 | 715 | // EBC compiler is very choosy. It may report warning about comparison\r |
716 | // between UINTN and 0 . So we add 1 in each size of the \r | |
717 | // comparison.\r | |
2ab6330e | 718 | //\r |
80408db0 | 719 | ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);\r |
720 | \r | |
721 | if (!PtrType) {\r | |
722 | ASSERT (*Size == DxePcdGetSize (TokenNumber + 1));\r | |
723 | }\r | |
724 | \r | |
2ab6330e | 725 | //\r |
80408db0 | 726 | // EBC compiler is very choosy. It may report warning about comparison\r |
727 | // between UINTN and 0 . So we add 1 in each size of the \r | |
728 | // comparison.\r | |
2ab6330e | 729 | //\r |
80408db0 | 730 | IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1) ? TRUE : FALSE);\r |
731 | \r | |
732 | LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable : \r | |
733 | mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r | |
734 | \r | |
2ab6330e | 735 | //\r |
80408db0 | 736 | // EBC compiler is very choosy. It may report warning about comparison\r |
737 | // between UINTN and 0 . So we add 1 in each size of the \r | |
738 | // comparison.\r | |
2ab6330e | 739 | //\r |
80408db0 | 740 | if ((TokenNumber + 1 < PEI_NEX_TOKEN_NUMBER + 1) ||\r |
741 | (TokenNumber + 1 >= PEI_LOCAL_TOKEN_NUMBER + 1 || TokenNumber + 1 < (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER + 1))) {\r | |
742 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r | |
743 | }\r | |
744 | \r | |
745 | TokenNumber = IsPeiDb ? TokenNumber\r | |
746 | : TokenNumber - PEI_LOCAL_TOKEN_NUMBER;\r | |
747 | \r | |
748 | LocalTokenNumber = LocalTokenNumberTable[TokenNumber];\r | |
749 | \r | |
750 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r | |
751 | if (PtrType) {\r | |
752 | GetPtrTypeSize (TmpTokenNumber, &MaxSize);\r | |
753 | } else {\r | |
754 | MaxSize = *Size;\r | |
755 | }\r | |
756 | LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb);\r | |
757 | }\r | |
758 | \r | |
759 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
760 | \r | |
761 | PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb);\r | |
762 | \r | |
763 | StringTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.StringTable :\r | |
764 | mPcdDatabase->DxeDb.Init.StringTable;\r | |
765 | \r | |
766 | InternalData = PcdDb + Offset;\r | |
767 | \r | |
768 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
769 | case PCD_TYPE_VPD:\r | |
770 | ASSERT (FALSE);\r | |
771 | Status = EFI_INVALID_PARAMETER;\r | |
772 | break;\r | |
773 | \r | |
774 | case PCD_TYPE_STRING:\r | |
775 | if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
776 | CopyMem (&StringTable[*((UINT16 *)InternalData)], Data, *Size);\r | |
777 | Status = EFI_SUCCESS;\r | |
778 | } else {\r | |
779 | Status = EFI_INVALID_PARAMETER;\r | |
780 | }\r | |
781 | break;\r | |
782 | \r | |
783 | case PCD_TYPE_HII:\r | |
784 | if (PtrType) {\r | |
785 | if (!SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
786 | Status = EFI_INVALID_PARAMETER;\r | |
787 | break;\r | |
788 | }\r | |
789 | }\r | |
790 | \r | |
791 | GuidTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.GuidTable :\r | |
792 | mPcdDatabase->DxeDb.Init.GuidTable;\r | |
793 | \r | |
794 | VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset);\r | |
795 | \r | |
796 | Guid = &(GuidTable[VariableHead->GuidTableIndex]);\r | |
797 | Name = &(StringTable[VariableHead->StringIndex]);\r | |
798 | VariableOffset = VariableHead->Offset;\r | |
799 | \r | |
800 | Status = SetHiiVariable (Guid, Name, Data, *Size, VariableOffset);\r | |
801 | \r | |
802 | if (EFI_NOT_FOUND == Status) {\r | |
803 | CopyMem (PcdDb + VariableHead->DefaultValueOffset, Data, *Size);\r | |
804 | Status = EFI_SUCCESS;\r | |
805 | } \r | |
806 | break;\r | |
807 | \r | |
808 | case PCD_TYPE_DATA:\r | |
809 | if (PtrType) {\r | |
810 | if (SetPtrTypeSize (TmpTokenNumber, Size)) {\r | |
811 | CopyMem (InternalData, Data, *Size);\r | |
812 | Status = EFI_SUCCESS;\r | |
813 | } else {\r | |
814 | Status = EFI_INVALID_PARAMETER;\r | |
815 | }\r | |
816 | break;\r | |
817 | }\r | |
818 | \r | |
819 | Status = EFI_SUCCESS;\r | |
820 | switch (*Size) {\r | |
821 | case sizeof(UINT8):\r | |
822 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
823 | break;\r | |
824 | \r | |
825 | case sizeof(UINT16):\r | |
826 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
827 | break;\r | |
828 | \r | |
829 | case sizeof(UINT32):\r | |
830 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
831 | break;\r | |
832 | \r | |
833 | case sizeof(UINT64):\r | |
834 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
835 | break;\r | |
836 | \r | |
837 | default:\r | |
838 | ASSERT (FALSE);\r | |
839 | Status = EFI_NOT_FOUND;\r | |
840 | break;\r | |
841 | }\r | |
842 | break;\r | |
843 | \r | |
844 | default:\r | |
845 | ASSERT (FALSE);\r | |
846 | Status = EFI_NOT_FOUND;\r | |
847 | break;\r | |
848 | }\r | |
849 | \r | |
850 | EfiReleaseLock (&mPcdDatabaseLock);\r | |
851 | \r | |
852 | return Status;\r | |
853 | }\r | |
854 | \r | |
2ab6330e | 855 | /**\r |
856 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
80408db0 | 857 | \r |
2ab6330e | 858 | @param Guid Token space guid for dynamic-ex PCD.\r |
859 | @param ExTokenNumber Token number for dyanmic-ex PCD.\r | |
860 | @param GetSize The size of dynamic-ex PCD value.\r | |
80408db0 | 861 | \r |
2ab6330e | 862 | @return PCD entry in PCD database.\r |
80408db0 | 863 | \r |
2ab6330e | 864 | **/\r |
80408db0 | 865 | VOID *\r |
866 | ExGetWorker (\r | |
867 | IN CONST EFI_GUID *Guid,\r | |
868 | IN UINTN ExTokenNumber,\r | |
869 | IN UINTN GetSize\r | |
870 | ) \r | |
871 | {\r | |
872 | return GetWorker(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber), GetSize);\r | |
873 | }\r | |
874 | \r | |
2ab6330e | 875 | /**\r |
876 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
80408db0 | 877 | \r |
2ab6330e | 878 | @param ExTokenNumber Token number for dynamic-ex PCD.\r |
879 | @param Guid Token space guid for dynamic-ex PCD.\r | |
880 | @param Data Value want to be set.\r | |
881 | @param SetSize The size of value.\r | |
80408db0 | 882 | \r |
2ab6330e | 883 | @return status of ExSetWorker().\r |
80408db0 | 884 | \r |
2ab6330e | 885 | **/\r |
80408db0 | 886 | EFI_STATUS\r |
887 | ExSetValueWorker (\r | |
888 | IN UINTN ExTokenNumber,\r | |
889 | IN CONST EFI_GUID *Guid,\r | |
890 | IN VOID *Data,\r | |
891 | IN UINTN SetSize\r | |
892 | )\r | |
893 | {\r | |
894 | return ExSetWorker (ExTokenNumber, Guid, Data, &SetSize, FALSE);\r | |
895 | }\r | |
896 | \r | |
2ab6330e | 897 | /**\r |
898 | Set value for a dynamic PCD entry.\r | |
899 | \r | |
900 | This routine find the local token number according to dynamic-ex PCD's token \r | |
901 | space guid and token number firstly, and invoke callback function if this PCD\r | |
902 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
903 | PCD value.\r | |
904 | \r | |
905 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
906 | @param Guid Token space guid for dynamic-ex PCD.\r | |
907 | @param Data PCD value want to be set\r | |
908 | @param SetSize Size of value.\r | |
909 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
910 | If FALSE, this PCD entry is not pointer type.\r | |
911 | \r | |
912 | @return status of SetWorker().\r | |
80408db0 | 913 | \r |
2ab6330e | 914 | **/\r |
80408db0 | 915 | EFI_STATUS\r |
916 | ExSetWorker (\r | |
917 | IN UINTN ExTokenNumber,\r | |
918 | IN CONST EFI_GUID *Guid,\r | |
919 | IN VOID *Data,\r | |
920 | IN OUT UINTN *SetSize,\r | |
921 | IN BOOLEAN PtrType\r | |
922 | )\r | |
923 | {\r | |
924 | UINTN TokenNumber;\r | |
925 | \r | |
926 | TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber);\r | |
927 | \r | |
928 | InvokeCallbackOnSet ((UINT32) ExTokenNumber, Guid, TokenNumber, Data, *SetSize);\r | |
929 | \r | |
930 | return SetWorker (TokenNumber, Data, SetSize, PtrType);\r | |
931 | \r | |
932 | }\r | |
933 | \r | |
2ab6330e | 934 | /**\r |
935 | Set value for HII-type PCD.\r | |
80408db0 | 936 | \r |
2ab6330e | 937 | A HII-type PCD's value is stored in a variable. Setting/Getting the value of \r |
938 | HII-type PCD is to visit this variable.\r | |
939 | \r | |
940 | @param VariableGuid Guid of variable which stored value of a HII-type PCD.\r | |
941 | @param VariableName Unicode name of variable which stored value of a HII-type PCD.\r | |
942 | @param Data Value want to be set.\r | |
943 | @param DataSize Size of value\r | |
944 | @param Offset Value offset of HII-type PCD in variable.\r | |
80408db0 | 945 | \r |
2ab6330e | 946 | @return status of GetVariable()/SetVariable().\r |
80408db0 | 947 | \r |
2ab6330e | 948 | **/\r |
80408db0 | 949 | EFI_STATUS\r |
950 | SetHiiVariable (\r | |
951 | IN EFI_GUID *VariableGuid,\r | |
952 | IN UINT16 *VariableName,\r | |
953 | IN CONST VOID *Data,\r | |
954 | IN UINTN DataSize,\r | |
955 | IN UINTN Offset\r | |
956 | )\r | |
957 | {\r | |
958 | UINTN Size;\r | |
959 | VOID *Buffer;\r | |
960 | EFI_STATUS Status;\r | |
961 | UINT32 Attribute;\r | |
962 | \r | |
963 | Size = 0;\r | |
964 | \r | |
965 | Status = gRT->GetVariable (\r | |
966 | (UINT16 *)VariableName,\r | |
967 | VariableGuid,\r | |
968 | NULL,\r | |
969 | &Size,\r | |
970 | NULL\r | |
971 | );\r | |
972 | \r | |
973 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
974 | \r | |
975 | Buffer = AllocatePool (Size);\r | |
976 | \r | |
977 | ASSERT (Buffer != NULL);\r | |
978 | \r | |
979 | Status = gRT->GetVariable (\r | |
980 | VariableName,\r | |
981 | VariableGuid,\r | |
982 | &Attribute,\r | |
983 | &Size,\r | |
984 | Buffer\r | |
985 | );\r | |
986 | \r | |
987 | ASSERT_EFI_ERROR (Status);\r | |
988 | \r | |
989 | CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize);\r | |
990 | \r | |
991 | Status = gRT->SetVariable (\r | |
992 | VariableName,\r | |
993 | VariableGuid,\r | |
994 | Attribute,\r | |
995 | Size,\r | |
996 | Buffer\r | |
997 | );\r | |
998 | \r | |
999 | FreePool (Buffer);\r | |
1000 | return Status;\r | |
1001 | \r | |
1002 | } \r | |
1003 | \r | |
1004 | //\r | |
1005 | // If we drop to here, we don't have a Variable entry in\r | |
1006 | // the variable service yet. So, we will save the data\r | |
1007 | // in the PCD Database's volatile area.\r | |
1008 | //\r | |
1009 | return Status;\r | |
1010 | }\r | |
1011 | \r | |
2ab6330e | 1012 | /**\r |
1013 | Get local token number according to dynamic-ex PCD's {token space guid:token number}\r | |
80408db0 | 1014 | \r |
2ab6330e | 1015 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r |
1016 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
1017 | space guid: token number} to local token number.\r | |
1018 | \r | |
1019 | @param Guid Token space guid for dynamic-ex PCD entry.\r | |
1020 | @param ExTokenNumber EDES_TODO: Add parameter description\r | |
80408db0 | 1021 | \r |
2ab6330e | 1022 | @return local token number for dynamic-ex PCD.\r |
80408db0 | 1023 | \r |
2ab6330e | 1024 | **/\r |
80408db0 | 1025 | UINTN \r |
1026 | GetExPcdTokenNumber (\r | |
1027 | IN CONST EFI_GUID *Guid,\r | |
1028 | IN UINT32 ExTokenNumber\r | |
1029 | )\r | |
1030 | {\r | |
2ab6330e | 1031 | UINT32 Index;\r |
80408db0 | 1032 | DYNAMICEX_MAPPING *ExMap;\r |
1033 | EFI_GUID *GuidTable;\r | |
1034 | EFI_GUID *MatchGuid;\r | |
1035 | UINTN MatchGuidIdx;\r | |
1036 | \r | |
1037 | if (!PEI_DATABASE_EMPTY) {\r | |
1038 | ExMap = mPcdDatabase->PeiDb.Init.ExMapTable;\r | |
1039 | GuidTable = mPcdDatabase->PeiDb.Init.GuidTable;\r | |
1040 | \r | |
1041 | MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->PeiDb.Init.GuidTable), Guid);\r | |
1042 | \r | |
1043 | if (MatchGuid != NULL) {\r | |
1044 | \r | |
1045 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1046 | \r | |
2ab6330e | 1047 | for (Index = 0; Index < PEI_EXMAPPING_TABLE_SIZE; Index++) {\r |
1048 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r | |
1049 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
1050 | return ExMap[Index].LocalTokenNumber;\r | |
80408db0 | 1051 | \r |
1052 | }\r | |
1053 | }\r | |
1054 | }\r | |
1055 | }\r | |
1056 | \r | |
1057 | ExMap = mPcdDatabase->DxeDb.Init.ExMapTable;\r | |
1058 | GuidTable = mPcdDatabase->DxeDb.Init.GuidTable;\r | |
1059 | \r | |
1060 | MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->DxeDb.Init.GuidTable), Guid);\r | |
1061 | //\r | |
1062 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
1063 | // error in the BUILD system.\r | |
1064 | //\r | |
1065 | ASSERT (MatchGuid != NULL);\r | |
1066 | \r | |
1067 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
1068 | \r | |
2ab6330e | 1069 | for (Index = 0; Index < DXE_EXMAPPING_TABLE_SIZE; Index++) {\r |
1070 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r | |
1071 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
1072 | return ExMap[Index].LocalTokenNumber;\r | |
80408db0 | 1073 | }\r |
1074 | }\r | |
1075 | \r | |
1076 | ASSERT (FALSE);\r | |
1077 | \r | |
1078 | return 0;\r | |
1079 | }\r | |
1080 | \r | |
2ab6330e | 1081 | /**\r |
1082 | Get SKU ID tabble from PCD database.\r | |
1083 | \r | |
1084 | @param LocalTokenNumberTableIdx Index of local token number in token number table.\r | |
1085 | @param IsPeiPcd If TRUE, \r | |
80408db0 | 1086 | \r |
2ab6330e | 1087 | @return Pointer to SKU ID array table\r |
1088 | \r | |
1089 | **/\r | |
80408db0 | 1090 | SKU_ID *\r |
1091 | GetSkuIdArray (\r | |
1092 | IN UINTN LocalTokenNumberTableIdx,\r | |
1093 | IN BOOLEAN IsPeiPcd\r | |
1094 | )\r | |
1095 | {\r | |
1096 | SKU_HEAD *SkuHead;\r | |
1097 | UINTN LocalTokenNumber;\r | |
1098 | UINT8 *Database;\r | |
1099 | \r | |
1100 | if (IsPeiPcd) {\r | |
1101 | LocalTokenNumber = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1102 | Database = (UINT8 *) &mPcdDatabase->PeiDb;\r | |
1103 | } else {\r | |
1104 | LocalTokenNumber = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable[LocalTokenNumberTableIdx - PEI_LOCAL_TOKEN_NUMBER];\r | |
1105 | Database = (UINT8 *) &mPcdDatabase->DxeDb;\r | |
1106 | }\r | |
1107 | \r | |
1108 | ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r | |
1109 | \r | |
1110 | SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r | |
1111 | \r | |
1112 | return (SKU_ID *) (Database + SkuHead->SkuIdTableOffset);\r | |
1113 | \r | |
1114 | }\r | |
1115 | \r | |
1116 | \r | |
2ab6330e | 1117 | /**\r |
1118 | Get index of PCD entry in size table.\r | |
1119 | \r | |
1120 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1121 | @param LocalTokenNumberTable Pointer to local token number table in PCD database.\r | |
1122 | @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
1123 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
1124 | \r | |
1125 | @return index of PCD entry in size table.\r | |
1126 | \r | |
1127 | **/\r | |
80408db0 | 1128 | UINTN\r |
1129 | GetSizeTableIndexA (\r | |
1130 | IN UINTN LocalTokenNumberTableIdx,\r | |
1131 | IN UINT32 *LocalTokenNumberTable,\r | |
1132 | IN BOOLEAN IsPeiDb\r | |
1133 | )\r | |
1134 | {\r | |
2ab6330e | 1135 | UINTN Index;\r |
80408db0 | 1136 | UINTN SizeTableIdx;\r |
1137 | UINTN LocalTokenNumber;\r | |
1138 | SKU_ID *SkuIdTable;\r | |
1139 | \r | |
1140 | SizeTableIdx = 0;\r | |
1141 | \r | |
2ab6330e | 1142 | for (Index=0; Index<LocalTokenNumberTableIdx; Index++) {\r |
1143 | LocalTokenNumber = LocalTokenNumberTable[Index];\r | |
80408db0 | 1144 | \r |
1145 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
1146 | //\r | |
1147 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1148 | // PCD entry.\r | |
1149 | //\r | |
2ab6330e | 1150 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 1151 | //\r |
1152 | // We have only one entry for VPD enabled PCD entry:\r | |
1153 | // 1) MAX Size.\r | |
1154 | // We consider current size is equal to MAX size.\r | |
1155 | //\r | |
1156 | SizeTableIdx++;\r | |
1157 | } else {\r | |
1158 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1159 | //\r | |
1160 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1161 | // 1) MAX SIZE\r | |
1162 | // 2) Current Size\r | |
1163 | //\r | |
1164 | SizeTableIdx += 2;\r | |
1165 | } else {\r | |
1166 | //\r | |
1167 | // We have these entry for SKU enabled PCD entry\r | |
1168 | // 1) MAX SIZE\r | |
1169 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1170 | //\r | |
2ab6330e | 1171 | SkuIdTable = GetSkuIdArray (Index, IsPeiDb);\r |
80408db0 | 1172 | SizeTableIdx += (UINTN)*SkuIdTable + 1;\r |
1173 | }\r | |
1174 | }\r | |
1175 | }\r | |
1176 | \r | |
1177 | }\r | |
1178 | \r | |
1179 | return SizeTableIdx;\r | |
1180 | }\r | |
1181 | \r | |
1182 | \r | |
1183 | \r | |
2ab6330e | 1184 | /**\r |
1185 | Wrapper function of getting index of PCD entry in size table.\r | |
1186 | \r | |
1187 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1188 | @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase,\r | |
1189 | If FALSE, the pcd entry is initialized in DXE phase.\r | |
1190 | \r | |
1191 | @return index of PCD entry in size table.\r | |
1192 | **/\r | |
80408db0 | 1193 | UINTN\r |
1194 | GetSizeTableIndex (\r | |
1195 | IN UINTN LocalTokenNumberTableIdx,\r | |
1196 | IN BOOLEAN IsPeiDb\r | |
1197 | )\r | |
1198 | {\r | |
1199 | UINT32 *LocalTokenNumberTable;\r | |
1200 | \r | |
1201 | if (IsPeiDb) {\r | |
1202 | LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable;\r | |
1203 | } else {\r | |
1204 | LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r | |
1205 | }\r | |
1206 | return GetSizeTableIndexA (LocalTokenNumberTableIdx, \r | |
2ab6330e | 1207 | LocalTokenNumberTable,\r |
1208 | IsPeiDb);\r | |
80408db0 | 1209 | }\r |
1210 | \r | |
2ab6330e | 1211 | /**\r |
1212 | Get size of POINTER type PCD value.\r | |
1213 | \r | |
1214 | @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r | |
1215 | @param MaxSize Maxmium size of POINTER type PCD value.\r | |
80408db0 | 1216 | \r |
2ab6330e | 1217 | @return size of POINTER type PCD value.\r |
80408db0 | 1218 | \r |
2ab6330e | 1219 | **/\r |
80408db0 | 1220 | UINTN\r |
1221 | GetPtrTypeSize (\r | |
1222 | IN UINTN LocalTokenNumberTableIdx,\r | |
1223 | OUT UINTN *MaxSize\r | |
1224 | )\r | |
1225 | {\r | |
1226 | INTN SizeTableIdx;\r | |
1227 | UINTN LocalTokenNumber;\r | |
1228 | SKU_ID *SkuIdTable;\r | |
1229 | SIZE_INFO *SizeTable;\r | |
2ab6330e | 1230 | UINTN Index;\r |
80408db0 | 1231 | BOOLEAN IsPeiDb;\r |
1232 | UINT32 *LocalTokenNumberTable;\r | |
1233 | \r | |
1234 | // EBC compiler is very choosy. It may report warning about comparison\r | |
1235 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1236 | // comparison.\r | |
1237 | IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r | |
1238 | \r | |
1239 | \r | |
1240 | if (IsPeiDb) {\r | |
1241 | LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable;\r | |
1242 | SizeTable = mPcdDatabase->PeiDb.Init.SizeTable;\r | |
1243 | } else {\r | |
1244 | LocalTokenNumberTableIdx -= PEI_LOCAL_TOKEN_NUMBER;\r | |
1245 | LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r | |
1246 | SizeTable = mPcdDatabase->DxeDb.Init.SizeTable;\r | |
1247 | }\r | |
1248 | \r | |
1249 | LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1250 | \r | |
1251 | ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r | |
1252 | \r | |
1253 | SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1254 | \r | |
1255 | *MaxSize = SizeTable[SizeTableIdx];\r | |
1256 | //\r | |
1257 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1258 | // PCD entry.\r | |
1259 | //\r | |
2ab6330e | 1260 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 1261 | //\r |
1262 | // We have only one entry for VPD enabled PCD entry:\r | |
1263 | // 1) MAX Size.\r | |
1264 | // We consider current size is equal to MAX size.\r | |
1265 | //\r | |
1266 | return *MaxSize;\r | |
1267 | } else {\r | |
1268 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1269 | //\r | |
1270 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1271 | // 1) MAX SIZE\r | |
1272 | // 2) Current Size\r | |
1273 | //\r | |
1274 | return SizeTable[SizeTableIdx + 1];\r | |
1275 | } else {\r | |
1276 | //\r | |
1277 | // We have these entry for SKU enabled PCD entry\r | |
1278 | // 1) MAX SIZE\r | |
1279 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1280 | //\r | |
1281 | SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);\r | |
2ab6330e | 1282 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r |
1283 | if (SkuIdTable[1 + Index] == mPcdDatabase->PeiDb.Init.SystemSkuId) {\r | |
1284 | return SizeTable[SizeTableIdx + 1 + Index];\r | |
80408db0 | 1285 | }\r |
1286 | }\r | |
1287 | return SizeTable[SizeTableIdx + 1];\r | |
1288 | }\r | |
1289 | }\r | |
1290 | }\r | |
1291 | \r | |
2ab6330e | 1292 | /**\r |
1293 | Set size of POINTER type PCD value. The size should not exceed the maxmium size\r | |
1294 | of this PCD value.\r | |
80408db0 | 1295 | \r |
2ab6330e | 1296 | @param LocalTokenNumberTableIdx Index of local token number in local token number table.\r |
1297 | @param CurrentSize Size of POINTER type PCD value.\r | |
80408db0 | 1298 | \r |
2ab6330e | 1299 | @retval TRUE Success to set size of PCD value.\r |
1300 | @retval FALSE Fail to set size of PCD value.\r | |
1301 | **/\r | |
80408db0 | 1302 | BOOLEAN\r |
1303 | SetPtrTypeSize (\r | |
1304 | IN UINTN LocalTokenNumberTableIdx,\r | |
1305 | IN OUT UINTN *CurrentSize\r | |
1306 | )\r | |
1307 | {\r | |
1308 | INTN SizeTableIdx;\r | |
1309 | UINTN LocalTokenNumber;\r | |
1310 | SKU_ID *SkuIdTable;\r | |
1311 | SIZE_INFO *SizeTable;\r | |
2ab6330e | 1312 | UINTN Index;\r |
80408db0 | 1313 | UINTN MaxSize;\r |
1314 | BOOLEAN IsPeiDb;\r | |
1315 | UINT32 *LocalTokenNumberTable;\r | |
1316 | \r | |
2ab6330e | 1317 | //\r |
80408db0 | 1318 | // EBC compiler is very choosy. It may report warning about comparison\r |
1319 | // between UINTN and 0 . So we add 1 in each size of the \r | |
1320 | // comparison.\r | |
2ab6330e | 1321 | //\r |
80408db0 | 1322 | IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r |
1323 | \r | |
1324 | if (IsPeiDb) {\r | |
1325 | LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable;\r | |
1326 | SizeTable = mPcdDatabase->PeiDb.Init.SizeTable;\r | |
1327 | } else {\r | |
1328 | LocalTokenNumberTableIdx -= PEI_LOCAL_TOKEN_NUMBER;\r | |
1329 | LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r | |
1330 | SizeTable = mPcdDatabase->DxeDb.Init.SizeTable;\r | |
1331 | }\r | |
1332 | \r | |
1333 | LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx];\r | |
1334 | \r | |
1335 | ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER);\r | |
1336 | \r | |
1337 | SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb);\r | |
1338 | \r | |
1339 | MaxSize = SizeTable[SizeTableIdx];\r | |
1340 | //\r | |
1341 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1342 | // PCD entry.\r | |
1343 | //\r | |
2ab6330e | 1344 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 1345 | //\r |
1346 | // We shouldn't come here as we don't support SET for VPD\r | |
1347 | //\r | |
1348 | ASSERT (FALSE);\r | |
1349 | return FALSE;\r | |
1350 | } else {\r | |
1351 | if ((*CurrentSize > MaxSize) ||\r | |
1352 | (*CurrentSize == MAX_ADDRESS)) {\r | |
1353 | *CurrentSize = MaxSize;\r | |
1354 | return FALSE;\r | |
1355 | } \r | |
1356 | \r | |
1357 | if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r | |
1358 | //\r | |
1359 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1360 | // 1) MAX SIZE\r | |
1361 | // 2) Current Size\r | |
1362 | //\r | |
1363 | SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r | |
1364 | return TRUE;\r | |
1365 | } else {\r | |
1366 | //\r | |
1367 | // We have these entry for SKU enabled PCD entry\r | |
1368 | // 1) MAX SIZE\r | |
1369 | // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r | |
1370 | //\r | |
1371 | SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb);\r | |
2ab6330e | 1372 | for (Index = 0; Index < SkuIdTable[0]; Index++) {\r |
1373 | if (SkuIdTable[1 + Index] == mPcdDatabase->PeiDb.Init.SystemSkuId) {\r | |
1374 | SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize;\r | |
80408db0 | 1375 | return TRUE;\r |
1376 | }\r | |
1377 | }\r | |
1378 | SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;\r | |
1379 | return TRUE;\r | |
1380 | }\r | |
1381 | }\r | |
1382 | }\r |