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80408db0 | 1 | /** @file\r |
5944a83b LG |
2 | The driver internal functions are implmented here.\r |
3 | They build Pei PCD database, and provide access service to PCD database.\r | |
80408db0 | 4 | \r |
16f69227 | 5 | Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 6 | This program and the accompanying materials\r |
80408db0 | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
80408db0 | 14 | **/\r |
80408db0 | 15 | \r |
16 | #include "Service.h"\r | |
17 | \r | |
96d6d004 SZ |
18 | /**\r |
19 | Get Local Token Number by Token Number.\r | |
20 | \r | |
21 | @param[in] Database PCD database.\r | |
22 | @param[in] TokenNumber The PCD token number.\r | |
23 | \r | |
24 | @return Local Token Number.\r | |
25 | **/\r | |
26 | UINT32\r | |
27 | GetLocalTokenNumber (\r | |
28 | IN PEI_PCD_DATABASE *Database,\r | |
29 | IN UINTN TokenNumber\r | |
30 | )\r | |
31 | {\r | |
32 | UINT32 LocalTokenNumber;\r | |
96d6d004 SZ |
33 | \r |
34 | //\r | |
35 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
36 | // We have to decrement TokenNumber by 1 to make it usable\r | |
37 | // as the array index.\r | |
38 | //\r | |
39 | TokenNumber--;\r | |
40 | \r | |
41 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + TokenNumber);\r | |
42 | \r | |
96d6d004 SZ |
43 | return LocalTokenNumber;\r |
44 | }\r | |
45 | \r | |
46 | /**\r | |
47 | Get PCD type by Local Token Number.\r | |
48 | \r | |
49 | @param[in] LocalTokenNumber The PCD local token number.\r | |
50 | \r | |
51 | @return PCD type.\r | |
52 | **/\r | |
53 | EFI_PCD_TYPE\r | |
54 | GetPcdType (\r | |
55 | IN UINT32 LocalTokenNumber\r | |
56 | )\r | |
57 | {\r | |
58 | switch (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) {\r | |
59 | case PCD_DATUM_TYPE_POINTER:\r | |
60 | return EFI_PCD_TYPE_PTR;\r | |
61 | case PCD_DATUM_TYPE_UINT8:\r | |
b5bd21b0 | 62 | if ((LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) == PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r |
96d6d004 SZ |
63 | return EFI_PCD_TYPE_BOOL;\r |
64 | } else {\r | |
65 | return EFI_PCD_TYPE_8;\r | |
66 | }\r | |
67 | case PCD_DATUM_TYPE_UINT16:\r | |
68 | return EFI_PCD_TYPE_16;\r | |
69 | case PCD_DATUM_TYPE_UINT32:\r | |
70 | return EFI_PCD_TYPE_32;\r | |
71 | case PCD_DATUM_TYPE_UINT64:\r | |
72 | return EFI_PCD_TYPE_64;\r | |
73 | default:\r | |
74 | ASSERT (FALSE);\r | |
75 | return EFI_PCD_TYPE_8;\r | |
76 | }\r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | Get PCD name.\r | |
81 | \r | |
82 | @param[in] OnlyTokenSpaceName If TRUE, only need to get the TokenSpaceCName.\r | |
83 | If FALSE, need to get the full PCD name.\r | |
84 | @param[in] Database PCD database.\r | |
85 | @param[in] TokenNumber The PCD token number.\r | |
86 | \r | |
87 | @return The TokenSpaceCName or full PCD name.\r | |
88 | **/\r | |
89 | CHAR8 *\r | |
90 | GetPcdName (\r | |
91 | IN BOOLEAN OnlyTokenSpaceName,\r | |
92 | IN PEI_PCD_DATABASE *Database,\r | |
93 | IN UINTN TokenNumber\r | |
94 | )\r | |
95 | {\r | |
96 | UINT8 *StringTable;\r | |
e85e284e | 97 | UINTN NameSize;\r |
96d6d004 SZ |
98 | PCD_NAME_INDEX *PcdNameIndex;\r |
99 | CHAR8 *TokenSpaceName;\r | |
100 | CHAR8 *PcdName;\r | |
101 | CHAR8 *Name;\r | |
102 | \r | |
85d0b97d SZ |
103 | //\r |
104 | // Return NULL when PCD name table is absent. \r | |
105 | //\r | |
106 | if (Database->PcdNameTableOffset == 0) {\r | |
107 | return NULL;\r | |
108 | }\r | |
109 | \r | |
96d6d004 SZ |
110 | //\r |
111 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
112 | // We have to decrement TokenNumber by 1 to make it usable\r | |
113 | // as the array index.\r | |
114 | //\r | |
115 | TokenNumber--;\r | |
116 | \r | |
117 | StringTable = (UINT8 *) Database + Database->StringTableOffset;\r | |
118 | \r | |
119 | //\r | |
120 | // Get the PCD name index.\r | |
121 | //\r | |
122 | PcdNameIndex = (PCD_NAME_INDEX *)((UINT8 *) Database + Database->PcdNameTableOffset) + TokenNumber;\r | |
123 | TokenSpaceName = (CHAR8 *)&StringTable[PcdNameIndex->TokenSpaceCNameIndex];\r | |
124 | PcdName = (CHAR8 *)&StringTable[PcdNameIndex->PcdCNameIndex];\r | |
125 | \r | |
126 | if (OnlyTokenSpaceName) {\r | |
127 | //\r | |
128 | // Only need to get the TokenSpaceCName.\r | |
129 | //\r | |
130 | Name = AllocateCopyPool (AsciiStrSize (TokenSpaceName), TokenSpaceName);\r | |
131 | } else {\r | |
132 | //\r | |
133 | // Need to get the full PCD name.\r | |
134 | //\r | |
e85e284e QS |
135 | NameSize = AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName);\r |
136 | Name = AllocateZeroPool (NameSize);\r | |
f47fc1cb | 137 | ASSERT (Name != NULL);\r |
96d6d004 SZ |
138 | //\r |
139 | // Catenate TokenSpaceCName and PcdCName with a '.' to form the full PCD name.\r | |
140 | //\r | |
e85e284e | 141 | AsciiStrCatS (Name, NameSize, TokenSpaceName);\r |
96d6d004 | 142 | Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r |
e85e284e | 143 | AsciiStrCatS (Name, NameSize, PcdName); \r |
96d6d004 SZ |
144 | }\r |
145 | \r | |
146 | return Name;\r | |
147 | }\r | |
148 | \r | |
149 | /**\r | |
150 | Retrieve additional information associated with a PCD token.\r | |
151 | \r | |
152 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
153 | human readable name that is associated with the token.\r | |
154 | \r | |
155 | @param[in] Database PCD database.\r | |
156 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
157 | @param[in] TokenNumber The PCD token number.\r | |
158 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
159 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. \r | |
160 | \r | |
161 | @retval EFI_SUCCESS The PCD information was returned successfully\r | |
162 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
163 | **/\r | |
164 | EFI_STATUS\r | |
165 | ExGetPcdInfo (\r | |
166 | IN PEI_PCD_DATABASE *Database,\r | |
167 | IN CONST EFI_GUID *Guid,\r | |
168 | IN UINTN TokenNumber,\r | |
169 | OUT EFI_PCD_INFO *PcdInfo\r | |
170 | )\r | |
171 | {\r | |
172 | UINTN GuidTableIdx;\r | |
173 | EFI_GUID *MatchGuid;\r | |
174 | EFI_GUID *GuidTable;\r | |
175 | DYNAMICEX_MAPPING *ExMapTable;\r | |
176 | UINTN Index;\r | |
177 | UINT32 LocalTokenNumber;\r | |
178 | \r | |
179 | GuidTable = (EFI_GUID *)((UINT8 *)Database + Database->GuidTableOffset);\r | |
180 | MatchGuid = ScanGuid (GuidTable, Database->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
181 | \r | |
182 | if (MatchGuid == NULL) {\r | |
183 | return EFI_NOT_FOUND;\r | |
184 | }\r | |
185 | \r | |
186 | GuidTableIdx = MatchGuid - GuidTable;\r | |
187 | \r | |
188 | ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)Database + Database->ExMapTableOffset);\r | |
189 | \r | |
190 | //\r | |
191 | // Find the PCD by GuidTableIdx and ExTokenNumber in ExMapTable.\r | |
192 | //\r | |
193 | for (Index = 0; Index < Database->ExTokenCount; Index++) {\r | |
194 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
195 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
196 | //\r | |
197 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
198 | // PcdSize to 0 and PcdName to the null-terminated ASCII string\r | |
199 | // associated with the token's namespace Guid.\r | |
200 | //\r | |
201 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
202 | PcdInfo->PcdSize = 0;\r | |
203 | //\r | |
204 | // Here use one representative in the token space to get the TokenSpaceCName.\r | |
205 | // \r | |
206 | PcdInfo->PcdName = GetPcdName (TRUE, Database, ExMapTable[Index].TokenNumber);\r | |
207 | return EFI_SUCCESS;\r | |
208 | } else if (ExMapTable[Index].ExTokenNumber == TokenNumber) {\r | |
209 | PcdInfo->PcdSize = PeiPcdGetSize (ExMapTable[Index].TokenNumber);\r | |
210 | LocalTokenNumber = GetLocalTokenNumber (Database, ExMapTable[Index].TokenNumber);\r | |
211 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
212 | PcdInfo->PcdName = GetPcdName (FALSE, Database, ExMapTable[Index].TokenNumber);\r | |
213 | return EFI_SUCCESS;\r | |
214 | }\r | |
215 | }\r | |
216 | }\r | |
217 | \r | |
218 | return EFI_NOT_FOUND;\r | |
219 | }\r | |
220 | \r | |
221 | /**\r | |
222 | Retrieve additional information associated with a PCD token.\r | |
223 | \r | |
224 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
225 | human readable name that is associated with the token.\r | |
226 | \r | |
227 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
228 | @param[in] TokenNumber The PCD token number.\r | |
229 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
230 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r | |
231 | \r | |
232 | @retval EFI_SUCCESS The PCD information was returned successfully.\r | |
233 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
234 | **/\r | |
235 | EFI_STATUS\r | |
236 | PeiGetPcdInfo (\r | |
237 | IN CONST EFI_GUID *Guid,\r | |
238 | IN UINTN TokenNumber,\r | |
239 | OUT EFI_PCD_INFO *PcdInfo\r | |
240 | )\r | |
241 | {\r | |
242 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
243 | BOOLEAN PeiExMapTableEmpty;\r | |
244 | UINTN PeiNexTokenNumber;\r | |
245 | UINT32 LocalTokenNumber;\r | |
246 | \r | |
96d6d004 SZ |
247 | ASSERT (PcdInfo != NULL);\r |
248 | \r | |
249 | PeiPcdDb = GetPcdDatabase ();\r | |
250 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r | |
251 | \r | |
252 | if (PeiPcdDb->ExTokenCount == 0) {\r | |
253 | PeiExMapTableEmpty = TRUE;\r | |
254 | } else {\r | |
255 | PeiExMapTableEmpty = FALSE;\r | |
256 | }\r | |
257 | \r | |
258 | if (Guid == NULL) {\r | |
259 | if (TokenNumber > PeiNexTokenNumber) {\r | |
260 | return EFI_NOT_FOUND;\r | |
261 | } else if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
262 | //\r | |
263 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
264 | // PcdSize to 0 and PcdName to NULL for default Token Space.\r | |
265 | //\r | |
266 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
267 | PcdInfo->PcdSize = 0;\r | |
268 | PcdInfo->PcdName = NULL;\r | |
269 | } else {\r | |
270 | PcdInfo->PcdSize = PeiPcdGetSize (TokenNumber);\r | |
271 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber);\r | |
272 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
273 | PcdInfo->PcdName = GetPcdName (FALSE, PeiPcdDb, TokenNumber);\r | |
274 | }\r | |
275 | return EFI_SUCCESS;\r | |
276 | } else {\r | |
277 | if (PeiExMapTableEmpty) {\r | |
278 | return EFI_NOT_FOUND;\r | |
279 | }\r | |
280 | return ExGetPcdInfo (\r | |
281 | PeiPcdDb,\r | |
282 | Guid,\r | |
283 | TokenNumber,\r | |
284 | PcdInfo\r | |
285 | );\r | |
286 | }\r | |
287 | }\r | |
288 | \r | |
80408db0 | 289 | /**\r |
290 | The function registers the CallBackOnSet fucntion\r | |
291 | according to TokenNumber and EFI_GUID space.\r | |
292 | \r | |
fc547e08 | 293 | @param ExTokenNumber The token number.\r |
80408db0 | 294 | @param Guid The GUID space.\r |
295 | @param CallBackFunction The Callback function to be registered.\r | |
296 | @param Register To register or unregister the callback function.\r | |
297 | \r | |
298 | @retval EFI_SUCCESS If the Callback function is registered.\r | |
299 | @retval EFI_NOT_FOUND If the PCD Entry is not found according to Token Number and GUID space.\r | |
300 | @retval EFI_OUT_OF_RESOURCES If the callback function can't be registered because there is not free\r | |
301 | slot left in the CallbackFnTable.\r | |
8ec8bed4 | 302 | @retval EFI_INVALID_PARAMETER If the callback function want to be de-registered can not be found.\r |
fc547e08 | 303 | **/\r |
80408db0 | 304 | EFI_STATUS\r |
305 | PeiRegisterCallBackWorker (\r | |
306 | IN UINTN ExTokenNumber,\r | |
307 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
308 | IN PCD_PPI_CALLBACK CallBackFunction,\r | |
309 | IN BOOLEAN Register\r | |
310 | )\r | |
311 | {\r | |
312 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
313 | PCD_PPI_CALLBACK *CallbackTable;\r | |
314 | PCD_PPI_CALLBACK Compare;\r | |
315 | PCD_PPI_CALLBACK Assign;\r | |
316 | UINT32 LocalTokenNumber;\r | |
419db80b BF |
317 | UINT32 LocalTokenCount;\r |
318 | UINTN PeiNexTokenNumber;\r | |
80408db0 | 319 | UINTN TokenNumber;\r |
320 | UINTN Idx;\r | |
419db80b BF |
321 | PEI_PCD_DATABASE *PeiPcdDb;\r |
322 | \r | |
323 | PeiPcdDb = GetPcdDatabase();\r | |
324 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
325 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r | |
80408db0 | 326 | \r |
327 | if (Guid == NULL) {\r | |
328 | TokenNumber = ExTokenNumber;\r | |
80408db0 | 329 | //\r |
330 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
331 | // We have to decrement TokenNumber by 1 to make it usable\r | |
332 | // as the array index.\r | |
333 | //\r | |
334 | TokenNumber--;\r | |
419db80b | 335 | ASSERT (TokenNumber + 1 < (PeiNexTokenNumber + 1));\r |
80408db0 | 336 | } else {\r |
337 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 338 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
339 | return EFI_NOT_FOUND;\r | |
340 | }\r | |
80408db0 | 341 | //\r |
342 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
343 | // We have to decrement TokenNumber by 1 to make it usable\r | |
344 | // as the array index.\r | |
345 | //\r | |
346 | TokenNumber--;\r | |
347 | // EBC compiler is very choosy. It may report warning about comparison\r | |
348 | // between UINTN and 0 . So we add 1 in each size of the \r | |
349 | // comparison.\r | |
419db80b | 350 | ASSERT ((TokenNumber + 1) < (LocalTokenCount + 1));\r |
80408db0 | 351 | }\r |
352 | \r | |
353 | \r | |
419db80b | 354 | LocalTokenNumber = *((UINT32 *)((UINT8 *)PeiPcdDb + PeiPcdDb->LocalTokenNumberTableOffset) + TokenNumber);\r |
80408db0 | 355 | \r |
356 | //\r | |
357 | // We don't support SET for HII and VPD type PCD entry in PEI phase.\r | |
358 | // So we will assert if any register callback for such PCD entry.\r | |
359 | //\r | |
360 | ASSERT ((LocalTokenNumber & PCD_TYPE_HII) == 0);\r | |
361 | ASSERT ((LocalTokenNumber & PCD_TYPE_VPD) == 0);\r | |
362 | \r | |
96cb78a1 | 363 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 364 | ASSERT (GuidHob != NULL);\r |
365 | \r | |
366 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
188e4e84 | 367 | CallbackTable = CallbackTable + (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 368 | \r |
369 | Compare = Register? NULL: CallBackFunction;\r | |
370 | Assign = Register? CallBackFunction: NULL;\r | |
371 | \r | |
372 | \r | |
188e4e84 | 373 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 374 | if (CallbackTable[Idx] == Compare) {\r |
375 | CallbackTable[Idx] = Assign;\r | |
376 | return EFI_SUCCESS;\r | |
377 | }\r | |
378 | }\r | |
379 | \r | |
8ec8bed4 | 380 | return Register? EFI_OUT_OF_RESOURCES : EFI_INVALID_PARAMETER;\r |
80408db0 | 381 | \r |
382 | }\r | |
383 | \r | |
419db80b BF |
384 | \r |
385 | /**\r | |
386 | Find the Pcd database. \r | |
387 | \r | |
388 | @param FileHandle Handle of the file the external PCD database binary located.\r | |
389 | \r | |
390 | @retval The base address of external PCD database binary.\r | |
391 | @retval NULL Return NULL if not find.\r | |
392 | **/\r | |
393 | VOID *\r | |
394 | LocateExPcdBinary (\r | |
395 | IN EFI_PEI_FILE_HANDLE FileHandle\r | |
396 | )\r | |
397 | {\r | |
398 | EFI_STATUS Status;\r | |
399 | VOID *PcdDb;\r | |
400 | \r | |
401 | PcdDb = NULL;\r | |
402 | \r | |
403 | ASSERT (FileHandle != NULL);\r | |
404 | \r | |
405 | Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb);\r | |
406 | ASSERT_EFI_ERROR (Status);\r | |
407 | \r | |
408 | //\r | |
409 | // Check the first bytes (Header Signature Guid) and build version.\r | |
410 | //\r | |
411 | if (!CompareGuid (PcdDb, &gPcdDataBaseSignatureGuid) ||\r | |
412 | (((PEI_PCD_DATABASE *) PcdDb)->BuildVersion != PCD_SERVICE_PEIM_VERSION)) {\r | |
413 | ASSERT (FALSE);\r | |
414 | }\r | |
415 | return PcdDb;\r | |
416 | }\r | |
417 | \r | |
418 | \r | |
80408db0 | 419 | /**\r |
420 | The function builds the PCD database.\r | |
419db80b BF |
421 | \r |
422 | @param FileHandle Handle of the file the external PCD database binary located.\r | |
423 | \r | |
96d6d004 | 424 | @return Pointer to PCD database.\r |
fc547e08 | 425 | **/\r |
96d6d004 | 426 | PEI_PCD_DATABASE *\r |
80408db0 | 427 | BuildPcdDatabase (\r |
419db80b | 428 | IN EFI_PEI_FILE_HANDLE FileHandle\r |
80408db0 | 429 | )\r |
430 | {\r | |
419db80b BF |
431 | PEI_PCD_DATABASE *Database;\r |
432 | PEI_PCD_DATABASE *PeiPcdDbBinary;\r | |
433 | VOID *CallbackFnTable;\r | |
434 | UINTN SizeOfCallbackFnTable;\r | |
435 | \r | |
436 | //\r | |
437 | // Locate the external PCD database binary for one section of current FFS\r | |
438 | //\r | |
439 | PeiPcdDbBinary = LocateExPcdBinary (FileHandle);\r | |
80408db0 | 440 | \r |
419db80b BF |
441 | ASSERT(PeiPcdDbBinary != NULL);\r |
442 | \r | |
443 | Database = BuildGuidHob (&gPcdDataBaseHobGuid, PeiPcdDbBinary->Length + PeiPcdDbBinary->UninitDataBaseSize);\r | |
444 | \r | |
445 | ZeroMem (Database, PeiPcdDbBinary->Length + PeiPcdDbBinary->UninitDataBaseSize);\r | |
80408db0 | 446 | \r |
447 | //\r | |
419db80b | 448 | // PeiPcdDbBinary is smaller than Database\r |
80408db0 | 449 | //\r |
419db80b | 450 | CopyMem (Database, PeiPcdDbBinary, PeiPcdDbBinary->Length);\r |
80408db0 | 451 | \r |
419db80b | 452 | SizeOfCallbackFnTable = Database->LocalTokenCount * sizeof (PCD_PPI_CALLBACK) * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry);\r |
80408db0 | 453 | \r |
96cb78a1 | 454 | CallbackFnTable = BuildGuidHob (&gEfiCallerIdGuid, SizeOfCallbackFnTable);\r |
80408db0 | 455 | \r |
456 | ZeroMem (CallbackFnTable, SizeOfCallbackFnTable);\r | |
96d6d004 SZ |
457 | \r |
458 | return Database;\r | |
80408db0 | 459 | }\r |
460 | \r | |
80408db0 | 461 | /**\r |
462 | The function is provided by PCD PEIM and PCD DXE driver to\r | |
463 | do the work of reading a HII variable from variable service.\r | |
464 | \r | |
465 | @param VariableGuid The Variable GUID.\r | |
466 | @param VariableName The Variable Name.\r | |
467 | @param VariableData The output data.\r | |
468 | @param VariableSize The size of the variable.\r | |
469 | \r | |
470 | @retval EFI_SUCCESS Operation successful.\r | |
471 | @retval EFI_NOT_FOUND Variablel not found.\r | |
fc547e08 | 472 | **/\r |
80408db0 | 473 | EFI_STATUS\r |
474 | GetHiiVariable (\r | |
475 | IN CONST EFI_GUID *VariableGuid,\r | |
476 | IN UINT16 *VariableName,\r | |
477 | OUT VOID **VariableData,\r | |
478 | OUT UINTN *VariableSize\r | |
479 | )\r | |
480 | {\r | |
481 | UINTN Size;\r | |
482 | EFI_STATUS Status;\r | |
483 | VOID *Buffer;\r | |
97a079ed | 484 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariablePpi;\r |
80408db0 | 485 | \r |
97a079ed | 486 | Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **) &VariablePpi);\r |
80408db0 | 487 | ASSERT_EFI_ERROR (Status);\r |
488 | \r | |
489 | Size = 0;\r | |
97a079ed A |
490 | Status = VariablePpi->GetVariable (\r |
491 | VariablePpi,\r | |
80408db0 | 492 | VariableName,\r |
493 | (EFI_GUID *) VariableGuid,\r | |
494 | NULL,\r | |
495 | &Size,\r | |
496 | NULL\r | |
97a079ed | 497 | );\r |
80408db0 | 498 | \r |
e5618791 | 499 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
80408db0 | 500 | Status = PeiServicesAllocatePool (Size, &Buffer);\r |
501 | ASSERT_EFI_ERROR (Status);\r | |
502 | \r | |
97a079ed A |
503 | Status = VariablePpi->GetVariable (\r |
504 | VariablePpi,\r | |
80408db0 | 505 | (UINT16 *) VariableName,\r |
506 | (EFI_GUID *) VariableGuid,\r | |
507 | NULL,\r | |
508 | &Size,\r | |
509 | Buffer\r | |
510 | );\r | |
511 | ASSERT_EFI_ERROR (Status);\r | |
512 | \r | |
513 | *VariableSize = Size;\r | |
514 | *VariableData = Buffer;\r | |
515 | \r | |
516 | return EFI_SUCCESS;\r | |
e5618791 | 517 | }\r |
80408db0 | 518 | \r |
fc547e08 | 519 | return EFI_NOT_FOUND;\r |
80408db0 | 520 | }\r |
521 | \r | |
fc547e08 | 522 | /**\r |
523 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r | |
524 | has registered callback function.\r | |
80408db0 | 525 | \r |
fc547e08 | 526 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r |
527 | type PCD.\r | |
528 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
529 | PCD.\r | |
530 | @param TokenNumber PCD token number generated by build tools.\r | |
531 | @param Data Value want to be set for this PCD entry\r | |
532 | @param Size The size of value\r | |
80408db0 | 533 | \r |
fc547e08 | 534 | **/\r |
80408db0 | 535 | VOID\r |
536 | InvokeCallbackOnSet (\r | |
537 | UINTN ExTokenNumber,\r | |
538 | CONST EFI_GUID *Guid, OPTIONAL\r | |
539 | UINTN TokenNumber,\r | |
540 | VOID *Data,\r | |
541 | UINTN Size\r | |
542 | )\r | |
543 | {\r | |
544 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
545 | PCD_PPI_CALLBACK *CallbackTable;\r | |
546 | UINTN Idx;\r | |
419db80b BF |
547 | PEI_PCD_DATABASE *PeiPcdDb;\r |
548 | UINT32 LocalTokenCount;\r | |
80408db0 | 549 | \r |
550 | //\r | |
551 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
552 | // We have to decrement TokenNumber by 1 to make it usable\r | |
553 | // as the array index.\r | |
554 | //\r | |
555 | TokenNumber--;\r | |
419db80b BF |
556 | \r |
557 | PeiPcdDb = GetPcdDatabase ();\r | |
558 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
559 | \r | |
80408db0 | 560 | if (Guid == NULL) {\r |
561 | // EBC compiler is very choosy. It may report warning about comparison\r | |
562 | // between UINTN and 0 . So we add 1 in each size of the \r | |
563 | // comparison.\r | |
419db80b | 564 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 565 | }\r |
566 | \r | |
96cb78a1 | 567 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 568 | ASSERT (GuidHob != NULL);\r |
569 | \r | |
570 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r | |
571 | \r | |
188e4e84 | 572 | CallbackTable += (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 573 | \r |
188e4e84 | 574 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 575 | if (CallbackTable[Idx] != NULL) {\r |
576 | CallbackTable[Idx] (Guid,\r | |
736c5dd5 | 577 | (Guid == NULL) ? (TokenNumber + 1) : ExTokenNumber,\r |
80408db0 | 578 | Data,\r |
579 | Size\r | |
580 | );\r | |
581 | }\r | |
582 | }\r | |
80408db0 | 583 | }\r |
584 | \r | |
fc547e08 | 585 | /**\r |
586 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
587 | \r | |
588 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
589 | @param Data Value want to be set for PCD entry\r | |
590 | @param Size Size of value.\r | |
80408db0 | 591 | \r |
fc547e08 | 592 | @return status of SetWorker.\r |
80408db0 | 593 | \r |
fc547e08 | 594 | **/\r |
80408db0 | 595 | EFI_STATUS\r |
596 | SetValueWorker (\r | |
597 | IN UINTN TokenNumber,\r | |
598 | IN VOID *Data,\r | |
599 | IN UINTN Size\r | |
600 | )\r | |
601 | {\r | |
602 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
603 | }\r | |
604 | \r | |
fc547e08 | 605 | /**\r |
606 | Set value for an PCD entry\r | |
607 | \r | |
608 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
609 | @param Data Value want to be set for PCD entry\r | |
610 | @param Size Size of value.\r | |
611 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
612 | If False, the type of PCD entry's value is not Pointer.\r | |
613 | \r | |
614 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
615 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
149fb6d6 | 616 | @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.\r |
fc547e08 | 617 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r |
618 | range of UINT8, UINT16, UINT32, UINT64\r | |
619 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r | |
620 | **/\r | |
80408db0 | 621 | EFI_STATUS\r |
622 | SetWorker (\r | |
623 | IN UINTN TokenNumber,\r | |
fc547e08 | 624 | IN VOID *Data,\r |
80408db0 | 625 | IN OUT UINTN *Size,\r |
626 | IN BOOLEAN PtrType\r | |
627 | )\r | |
628 | {\r | |
629 | UINT32 LocalTokenNumber;\r | |
419db80b | 630 | UINTN PeiNexTokenNumber;\r |
80408db0 | 631 | PEI_PCD_DATABASE *PeiPcdDb;\r |
6cfc7292 | 632 | STRING_HEAD StringTableIdx;\r |
80408db0 | 633 | UINTN Offset;\r |
634 | VOID *InternalData;\r | |
635 | UINTN MaxSize;\r | |
419db80b | 636 | UINT32 LocalTokenCount;\r |
80408db0 | 637 | \r |
f806dd27 | 638 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 639 | return EFI_UNSUPPORTED;\r |
640 | }\r | |
641 | \r | |
642 | //\r | |
643 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
644 | // We have to decrement TokenNumber by 1 to make it usable\r | |
645 | // as the array index.\r | |
646 | //\r | |
647 | TokenNumber--;\r | |
419db80b BF |
648 | PeiPcdDb = GetPcdDatabase ();\r |
649 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
80408db0 | 650 | \r |
651 | // EBC compiler is very choosy. It may report warning about comparison\r | |
652 | // between UINTN and 0 . So we add 1 in each size of the \r | |
653 | // comparison.\r | |
419db80b | 654 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 655 | \r |
8ec8bed4 | 656 | if (PtrType) {\r |
64894410 LG |
657 | //\r |
658 | // Get MaxSize first, then check new size with max buffer size.\r | |
659 | //\r | |
660 | GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r | |
661 | if (*Size > MaxSize) {\r | |
cb40609c | 662 | *Size = MaxSize;\r |
8ec8bed4 | 663 | return EFI_INVALID_PARAMETER;\r |
664 | }\r | |
665 | } else {\r | |
666 | if (*Size != PeiPcdGetSize (TokenNumber + 1)) {\r | |
667 | return EFI_INVALID_PARAMETER;\r | |
668 | }\r | |
80408db0 | 669 | }\r |
670 | \r | |
671 | //\r | |
672 | // We only invoke the callback function for Dynamic Type PCD Entry.\r | |
673 | // For Dynamic EX PCD entry, we have invoked the callback function for Dynamic EX\r | |
674 | // type PCD entry in ExSetWorker.\r | |
675 | //\r | |
419db80b BF |
676 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r |
677 | if (TokenNumber + 1 < PeiNexTokenNumber + 1) {\r | |
80408db0 | 678 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r |
679 | }\r | |
680 | \r | |
96d6d004 | 681 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber + 1);\r |
80408db0 | 682 | \r |
683 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
684 | InternalData = (VOID *) ((UINT8 *) PeiPcdDb + Offset);\r | |
685 | \r | |
686 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r | |
687 | case PCD_TYPE_VPD:\r | |
688 | case PCD_TYPE_HII:\r | |
6ac15f7c | 689 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 690 | {\r |
691 | ASSERT (FALSE);\r | |
692 | return EFI_INVALID_PARAMETER;\r | |
693 | }\r | |
694 | \r | |
695 | case PCD_TYPE_STRING:\r | |
696 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
6cfc7292 | 697 | StringTableIdx = *((STRING_HEAD *)InternalData);\r |
419db80b | 698 | CopyMem ((UINT8 *)PeiPcdDb + PeiPcdDb->StringTableOffset + StringTableIdx, Data, *Size);\r |
80408db0 | 699 | return EFI_SUCCESS;\r |
700 | } else {\r | |
701 | return EFI_INVALID_PARAMETER;\r | |
702 | }\r | |
703 | \r | |
704 | case PCD_TYPE_DATA:\r | |
705 | {\r | |
706 | if (PtrType) {\r | |
707 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
708 | CopyMem (InternalData, Data, *Size);\r | |
709 | return EFI_SUCCESS;\r | |
710 | } else {\r | |
711 | return EFI_INVALID_PARAMETER;\r | |
712 | }\r | |
713 | }\r | |
714 | \r | |
715 | switch (*Size) {\r | |
716 | case sizeof(UINT8):\r | |
717 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
718 | return EFI_SUCCESS;\r | |
719 | \r | |
720 | case sizeof(UINT16):\r | |
721 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
722 | return EFI_SUCCESS;\r | |
723 | \r | |
724 | case sizeof(UINT32):\r | |
725 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
726 | return EFI_SUCCESS;\r | |
727 | \r | |
728 | case sizeof(UINT64):\r | |
729 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
730 | return EFI_SUCCESS;\r | |
731 | \r | |
732 | default:\r | |
733 | ASSERT (FALSE);\r | |
734 | return EFI_NOT_FOUND;\r | |
735 | }\r | |
736 | }\r | |
737 | \r | |
738 | }\r | |
739 | \r | |
740 | ASSERT (FALSE);\r | |
741 | return EFI_NOT_FOUND;\r | |
742 | \r | |
743 | }\r | |
744 | \r | |
fc547e08 | 745 | /**\r |
746 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
80408db0 | 747 | \r |
fc547e08 | 748 | @param ExTokenNumber Token number for dynamic-ex PCD.\r |
749 | @param Guid Token space guid for dynamic-ex PCD.\r | |
750 | @param Data Value want to be set.\r | |
751 | @param SetSize The size of value.\r | |
80408db0 | 752 | \r |
fc547e08 | 753 | @return status of ExSetWorker().\r |
754 | \r | |
755 | **/\r | |
80408db0 | 756 | EFI_STATUS\r |
757 | ExSetValueWorker (\r | |
758 | IN UINTN ExTokenNumber,\r | |
759 | IN CONST EFI_GUID *Guid,\r | |
760 | IN VOID *Data,\r | |
761 | IN UINTN Size\r | |
762 | )\r | |
763 | {\r | |
764 | return ExSetWorker (ExTokenNumber, Guid, Data, &Size, FALSE);\r | |
765 | }\r | |
766 | \r | |
fc547e08 | 767 | /**\r |
419db80b | 768 | Set value for a dynamic-ex PCD entry.\r |
fc547e08 | 769 | \r |
770 | This routine find the local token number according to dynamic-ex PCD's token \r | |
771 | space guid and token number firstly, and invoke callback function if this PCD\r | |
772 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
773 | PCD value.\r | |
774 | \r | |
775 | @param ExTokenNumber Dynamic-ex PCD token number.\r | |
776 | @param Guid Token space guid for dynamic-ex PCD.\r | |
777 | @param Data PCD value want to be set\r | |
778 | @param SetSize Size of value.\r | |
779 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
780 | If FALSE, this PCD entry is not pointer type.\r | |
80408db0 | 781 | \r |
fc547e08 | 782 | @return status of SetWorker().\r |
80408db0 | 783 | \r |
fc547e08 | 784 | **/\r |
80408db0 | 785 | EFI_STATUS\r |
786 | ExSetWorker (\r | |
787 | IN UINTN ExTokenNumber,\r | |
788 | IN CONST EFI_GUID *Guid,\r | |
789 | IN VOID *Data,\r | |
790 | IN OUT UINTN *Size,\r | |
791 | IN BOOLEAN PtrType\r | |
792 | )\r | |
793 | {\r | |
794 | UINTN TokenNumber;\r | |
795 | \r | |
f806dd27 | 796 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 797 | return EFI_UNSUPPORTED;\r |
798 | }\r | |
799 | \r | |
800 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 801 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
802 | return EFI_NOT_FOUND;\r | |
803 | }\r | |
804 | \r | |
80408db0 | 805 | InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, *Size);\r |
806 | \r | |
807 | return SetWorker (TokenNumber, Data, Size, PtrType);\r | |
808 | \r | |
809 | }\r | |
810 | \r | |
fc547e08 | 811 | /**\r |
812 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
80408db0 | 813 | \r |
fc547e08 | 814 | @param Guid Token space guid for dynamic-ex PCD.\r |
815 | @param ExTokenNumber Token number for dyanmic-ex PCD.\r | |
816 | @param GetSize The size of dynamic-ex PCD value.\r | |
80408db0 | 817 | \r |
fc547e08 | 818 | @return PCD entry in PCD database.\r |
80408db0 | 819 | \r |
fc547e08 | 820 | **/\r |
80408db0 | 821 | VOID *\r |
822 | ExGetWorker (\r | |
823 | IN CONST EFI_GUID *Guid,\r | |
824 | IN UINTN ExTokenNumber,\r | |
825 | IN UINTN GetSize\r | |
826 | )\r | |
f806dd27 | 827 | { \r |
80408db0 | 828 | return GetWorker (GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);\r |
829 | }\r | |
830 | \r | |
fc547e08 | 831 | /**\r |
832 | Get the PCD entry pointer in PCD database.\r | |
833 | \r | |
834 | This routine will visit PCD database to find the PCD entry according to given\r | |
835 | token number. The given token number is autogened by build tools and it will be \r | |
836 | translated to local token number. Local token number contains PCD's type and \r | |
837 | offset of PCD entry in PCD database.\r | |
80408db0 | 838 | \r |
fc547e08 | 839 | @param TokenNumber Token's number, it is autogened by build tools\r |
840 | @param GetSize The size of token's value\r | |
80408db0 | 841 | \r |
fc547e08 | 842 | @return PCD entry pointer in PCD database\r |
80408db0 | 843 | \r |
fc547e08 | 844 | **/\r |
80408db0 | 845 | VOID *\r |
846 | GetWorker (\r | |
fc547e08 | 847 | IN UINTN TokenNumber,\r |
848 | IN UINTN GetSize\r | |
80408db0 | 849 | )\r |
850 | {\r | |
851 | UINT32 Offset;\r | |
852 | EFI_GUID *Guid;\r | |
853 | UINT16 *Name;\r | |
854 | VARIABLE_HEAD *VariableHead;\r | |
855 | EFI_STATUS Status;\r | |
856 | UINTN DataSize;\r | |
857 | VOID *Data;\r | |
d0965169 | 858 | UINT8 *StringTable;\r |
6cfc7292 | 859 | STRING_HEAD StringTableIdx;\r |
80408db0 | 860 | PEI_PCD_DATABASE *PeiPcdDb;\r |
861 | UINT32 LocalTokenNumber;\r | |
419db80b | 862 | UINT32 LocalTokenCount;\r |
553e8669 | 863 | UINT8 *VaraiableDefaultBuffer;\r |
80408db0 | 864 | \r |
865 | //\r | |
866 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
867 | // We have to decrement TokenNumber by 1 to make it usable\r | |
868 | // as the array index.\r | |
869 | //\r | |
870 | TokenNumber--;\r | |
871 | \r | |
419db80b BF |
872 | PeiPcdDb = GetPcdDatabase ();\r |
873 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
874 | \r | |
80408db0 | 875 | // EBC compiler is very choosy. It may report warning about comparison\r |
876 | // between UINTN and 0 . So we add 1 in each size of the \r | |
877 | // comparison.\r | |
419db80b | 878 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 879 | \r |
880 | ASSERT ((GetSize == PeiPcdGetSize(TokenNumber + 1)) || (GetSize == 0));\r | |
881 | \r | |
96d6d004 | 882 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber + 1);\r |
80408db0 | 883 | \r |
884 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
419db80b BF |
885 | StringTable = (UINT8 *)PeiPcdDb + PeiPcdDb->StringTableOffset;\r |
886 | \r | |
80408db0 | 887 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r |
888 | case PCD_TYPE_VPD:\r | |
889 | {\r | |
890 | VPD_HEAD *VpdHead;\r | |
891 | VpdHead = (VPD_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
16f69227 | 892 | return (VOID *) ((UINTN) PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r |
80408db0 | 893 | }\r |
894 | \r | |
6ac15f7c | 895 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 896 | case PCD_TYPE_HII:\r |
897 | {\r | |
898 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
899 | \r | |
419db80b | 900 | Guid = (EFI_GUID *) ((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset) + VariableHead->GuidTableIndex;\r |
d0965169 | 901 | Name = (UINT16*)&StringTable[VariableHead->StringIndex];\r |
80408db0 | 902 | \r |
553e8669 | 903 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r |
80408db0 | 904 | //\r |
553e8669 SZ |
905 | // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of \r |
906 | // string array in string table.\r | |
80408db0 | 907 | //\r |
553e8669 SZ |
908 | VaraiableDefaultBuffer = (UINT8 *) &StringTable[*(STRING_HEAD*)((UINT8*) PeiPcdDb + VariableHead->DefaultValueOffset)]; \r |
909 | } else {\r | |
910 | VaraiableDefaultBuffer = (UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset;\r | |
911 | }\r | |
912 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
913 | if ((Status == EFI_SUCCESS) && (DataSize >= (VariableHead->Offset + GetSize))) {\r | |
914 | if (GetSize == 0) {\r | |
915 | //\r | |
916 | // It is a pointer type. So get the MaxSize reserved for\r | |
917 | // this PCD entry.\r | |
918 | //\r | |
919 | GetPtrTypeSize (TokenNumber, &GetSize, PeiPcdDb);\r | |
920 | if (GetSize > (DataSize - VariableHead->Offset)) {\r | |
921 | //\r | |
922 | // Use actual valid size.\r | |
923 | //\r | |
924 | GetSize = DataSize - VariableHead->Offset;\r | |
925 | }\r | |
6ac15f7c | 926 | }\r |
553e8669 SZ |
927 | //\r |
928 | // If the operation is successful, we copy the data\r | |
929 | // to the default value buffer in the PCD Database.\r | |
930 | //\r | |
931 | CopyMem (VaraiableDefaultBuffer, (UINT8 *) Data + VariableHead->Offset, GetSize);\r | |
80408db0 | 932 | }\r |
553e8669 | 933 | return (VOID *) VaraiableDefaultBuffer;\r |
80408db0 | 934 | }\r |
935 | \r | |
936 | case PCD_TYPE_DATA:\r | |
937 | return (VOID *) ((UINT8 *)PeiPcdDb + Offset);\r | |
938 | \r | |
939 | case PCD_TYPE_STRING:\r | |
6cfc7292 | 940 | StringTableIdx = * (STRING_HEAD*) ((UINT8 *) PeiPcdDb + Offset);\r |
80408db0 | 941 | return (VOID *) (&StringTable[StringTableIdx]);\r |
942 | \r | |
943 | default:\r | |
944 | ASSERT (FALSE);\r | |
945 | break;\r | |
946 | \r | |
947 | }\r | |
948 | \r | |
949 | ASSERT (FALSE);\r | |
950 | \r | |
951 | return NULL;\r | |
952 | \r | |
953 | }\r | |
954 | \r | |
fc547e08 | 955 | /**\r |
419db80b | 956 | Get Token Number according to dynamic-ex PCD's {token space guid:token number}\r |
fc547e08 | 957 | \r |
958 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r | |
959 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
419db80b | 960 | space guid: token number} to Token Number.\r |
fc547e08 | 961 | \r |
962 | @param Guid Token space guid for dynamic-ex PCD entry.\r | |
419db80b | 963 | @param ExTokenNumber Dynamic-ex PCD token number.\r |
80408db0 | 964 | \r |
419db80b | 965 | @return Token Number for dynamic-ex PCD.\r |
80408db0 | 966 | \r |
fc547e08 | 967 | **/\r |
80408db0 | 968 | UINTN \r |
969 | GetExPcdTokenNumber (\r | |
970 | IN CONST EFI_GUID *Guid,\r | |
971 | IN UINTN ExTokenNumber\r | |
972 | )\r | |
973 | {\r | |
fc547e08 | 974 | UINT32 Index;\r |
80408db0 | 975 | DYNAMICEX_MAPPING *ExMap;\r |
976 | EFI_GUID *GuidTable;\r | |
977 | EFI_GUID *MatchGuid;\r | |
978 | UINTN MatchGuidIdx;\r | |
979 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
980 | \r | |
981 | PeiPcdDb = GetPcdDatabase();\r | |
80408db0 | 982 | \r |
419db80b BF |
983 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)PeiPcdDb + PeiPcdDb->ExMapTableOffset);\r |
984 | GuidTable = (EFI_GUID *)((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset);\r | |
985 | \r | |
986 | MatchGuid = ScanGuid (GuidTable, PeiPcdDb->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
80408db0 | 987 | //\r |
988 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
989 | // error in the BUILD system.\r | |
990 | //\r | |
991 | ASSERT (MatchGuid != NULL);\r | |
992 | \r | |
993 | MatchGuidIdx = MatchGuid - GuidTable;\r | |
994 | \r | |
419db80b | 995 | for (Index = 0; Index < PeiPcdDb->ExTokenCount; Index++) {\r |
fc547e08 | 996 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) && \r |
997 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r | |
419db80b | 998 | return ExMap[Index].TokenNumber;\r |
80408db0 | 999 | }\r |
1000 | }\r | |
1001 | \r | |
86714ccd | 1002 | return PCD_INVALID_TOKEN_NUMBER;\r |
80408db0 | 1003 | }\r |
1004 | \r | |
fc547e08 | 1005 | /**\r |
1006 | Get PCD database from GUID HOB in PEI phase.\r | |
80408db0 | 1007 | \r |
fc547e08 | 1008 | @return Pointer to PCD database.\r |
80408db0 | 1009 | \r |
fc547e08 | 1010 | **/\r |
80408db0 | 1011 | PEI_PCD_DATABASE *\r |
1012 | GetPcdDatabase (\r | |
1013 | VOID\r | |
1014 | )\r | |
1015 | {\r | |
1016 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
1017 | \r | |
1018 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
1019 | ASSERT (GuidHob != NULL);\r | |
1020 | \r | |
1021 | return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r | |
1022 | }\r | |
1023 | \r | |
fc547e08 | 1024 | /**\r |
1025 | Get index of PCD entry in size table.\r | |
1026 | \r | |
1027 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1028 | @param Database Pointer to PCD database in PEI phase.\r | |
80408db0 | 1029 | \r |
fc547e08 | 1030 | @return index of PCD entry in size table.\r |
80408db0 | 1031 | \r |
fc547e08 | 1032 | **/\r |
80408db0 | 1033 | UINTN\r |
1034 | GetSizeTableIndex (\r | |
1035 | IN UINTN LocalTokenNumberTableIdx,\r | |
1036 | IN PEI_PCD_DATABASE *Database\r | |
1037 | )\r | |
1038 | {\r | |
fc547e08 | 1039 | UINTN Index;\r |
419db80b | 1040 | UINTN SizeTableIdx;\r |
80408db0 | 1041 | UINTN LocalTokenNumber;\r |
7c736265 | 1042 | \r |
80408db0 | 1043 | SizeTableIdx = 0;\r |
1044 | \r | |
419db80b BF |
1045 | for (Index = 0; Index < LocalTokenNumberTableIdx; Index++) {\r |
1046 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + Index);\r | |
80408db0 | 1047 | \r |
1048 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
1049 | //\r | |
1050 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r | |
1051 | // PCD entry.\r | |
1052 | //\r | |
fc547e08 | 1053 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 1054 | //\r |
419db80b | 1055 | // We have only two entry for VPD enabled PCD entry:\r |
80408db0 | 1056 | // 1) MAX Size.\r |
419db80b BF |
1057 | // 2) Current Size\r |
1058 | // Current size is equal to MAX size.\r | |
80408db0 | 1059 | //\r |
419db80b | 1060 | SizeTableIdx += 2;\r |
80408db0 | 1061 | } else {\r |
80408db0 | 1062 | //\r |
1063 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1064 | // 1) MAX SIZE\r | |
1065 | // 2) Current Size\r | |
1066 | //\r | |
1067 | SizeTableIdx += 2;\r | |
80408db0 | 1068 | }\r |
1069 | }\r | |
1070 | \r | |
1071 | }\r | |
1072 | \r | |
1073 | return SizeTableIdx;\r | |
1074 | }\r |