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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 |
d1102dba | 5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
80408db0 | 7 | \r |
80408db0 | 8 | **/\r |
80408db0 | 9 | \r |
10 | #include "Service.h"\r | |
11 | \r | |
96d6d004 SZ |
12 | /**\r |
13 | Get Local Token Number by Token Number.\r | |
14 | \r | |
15 | @param[in] Database PCD database.\r | |
16 | @param[in] TokenNumber The PCD token number.\r | |
17 | \r | |
18 | @return Local Token Number.\r | |
19 | **/\r | |
20 | UINT32\r | |
21 | GetLocalTokenNumber (\r | |
22 | IN PEI_PCD_DATABASE *Database,\r | |
23 | IN UINTN TokenNumber\r | |
24 | )\r | |
25 | {\r | |
26 | UINT32 LocalTokenNumber;\r | |
96d6d004 SZ |
27 | \r |
28 | //\r | |
29 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
30 | // We have to decrement TokenNumber by 1 to make it usable\r | |
31 | // as the array index.\r | |
32 | //\r | |
33 | TokenNumber--;\r | |
34 | \r | |
35 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + TokenNumber);\r | |
36 | \r | |
96d6d004 SZ |
37 | return LocalTokenNumber;\r |
38 | }\r | |
39 | \r | |
40 | /**\r | |
41 | Get PCD type by Local Token Number.\r | |
42 | \r | |
43 | @param[in] LocalTokenNumber The PCD local token number.\r | |
44 | \r | |
45 | @return PCD type.\r | |
46 | **/\r | |
47 | EFI_PCD_TYPE\r | |
48 | GetPcdType (\r | |
49 | IN UINT32 LocalTokenNumber\r | |
50 | )\r | |
51 | {\r | |
52 | switch (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) {\r | |
53 | case PCD_DATUM_TYPE_POINTER:\r | |
54 | return EFI_PCD_TYPE_PTR;\r | |
55 | case PCD_DATUM_TYPE_UINT8:\r | |
b5bd21b0 | 56 | if ((LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) == PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r |
96d6d004 SZ |
57 | return EFI_PCD_TYPE_BOOL;\r |
58 | } else {\r | |
59 | return EFI_PCD_TYPE_8;\r | |
60 | }\r | |
61 | case PCD_DATUM_TYPE_UINT16:\r | |
62 | return EFI_PCD_TYPE_16;\r | |
63 | case PCD_DATUM_TYPE_UINT32:\r | |
64 | return EFI_PCD_TYPE_32;\r | |
65 | case PCD_DATUM_TYPE_UINT64:\r | |
66 | return EFI_PCD_TYPE_64;\r | |
67 | default:\r | |
68 | ASSERT (FALSE);\r | |
69 | return EFI_PCD_TYPE_8;\r | |
70 | }\r | |
71 | }\r | |
72 | \r | |
73 | /**\r | |
74 | Get PCD name.\r | |
75 | \r | |
76 | @param[in] OnlyTokenSpaceName If TRUE, only need to get the TokenSpaceCName.\r | |
77 | If FALSE, need to get the full PCD name.\r | |
78 | @param[in] Database PCD database.\r | |
79 | @param[in] TokenNumber The PCD token number.\r | |
80 | \r | |
81 | @return The TokenSpaceCName or full PCD name.\r | |
82 | **/\r | |
83 | CHAR8 *\r | |
84 | GetPcdName (\r | |
85 | IN BOOLEAN OnlyTokenSpaceName,\r | |
86 | IN PEI_PCD_DATABASE *Database,\r | |
87 | IN UINTN TokenNumber\r | |
88 | )\r | |
89 | {\r | |
90 | UINT8 *StringTable;\r | |
e85e284e | 91 | UINTN NameSize;\r |
96d6d004 SZ |
92 | PCD_NAME_INDEX *PcdNameIndex;\r |
93 | CHAR8 *TokenSpaceName;\r | |
94 | CHAR8 *PcdName;\r | |
95 | CHAR8 *Name;\r | |
96 | \r | |
85d0b97d | 97 | //\r |
d1102dba | 98 | // Return NULL when PCD name table is absent.\r |
85d0b97d SZ |
99 | //\r |
100 | if (Database->PcdNameTableOffset == 0) {\r | |
101 | return NULL;\r | |
102 | }\r | |
103 | \r | |
96d6d004 SZ |
104 | //\r |
105 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
106 | // We have to decrement TokenNumber by 1 to make it usable\r | |
107 | // as the array index.\r | |
108 | //\r | |
109 | TokenNumber--;\r | |
110 | \r | |
111 | StringTable = (UINT8 *) Database + Database->StringTableOffset;\r | |
112 | \r | |
113 | //\r | |
114 | // Get the PCD name index.\r | |
115 | //\r | |
116 | PcdNameIndex = (PCD_NAME_INDEX *)((UINT8 *) Database + Database->PcdNameTableOffset) + TokenNumber;\r | |
117 | TokenSpaceName = (CHAR8 *)&StringTable[PcdNameIndex->TokenSpaceCNameIndex];\r | |
118 | PcdName = (CHAR8 *)&StringTable[PcdNameIndex->PcdCNameIndex];\r | |
119 | \r | |
120 | if (OnlyTokenSpaceName) {\r | |
121 | //\r | |
122 | // Only need to get the TokenSpaceCName.\r | |
123 | //\r | |
124 | Name = AllocateCopyPool (AsciiStrSize (TokenSpaceName), TokenSpaceName);\r | |
125 | } else {\r | |
126 | //\r | |
127 | // Need to get the full PCD name.\r | |
128 | //\r | |
e85e284e QS |
129 | NameSize = AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName);\r |
130 | Name = AllocateZeroPool (NameSize);\r | |
f47fc1cb | 131 | ASSERT (Name != NULL);\r |
96d6d004 SZ |
132 | //\r |
133 | // Catenate TokenSpaceCName and PcdCName with a '.' to form the full PCD name.\r | |
134 | //\r | |
e85e284e | 135 | AsciiStrCatS (Name, NameSize, TokenSpaceName);\r |
96d6d004 | 136 | Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r |
d1102dba | 137 | AsciiStrCatS (Name, NameSize, PcdName);\r |
96d6d004 SZ |
138 | }\r |
139 | \r | |
140 | return Name;\r | |
141 | }\r | |
142 | \r | |
143 | /**\r | |
144 | Retrieve additional information associated with a PCD token.\r | |
145 | \r | |
146 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
147 | human readable name that is associated with the token.\r | |
148 | \r | |
149 | @param[in] Database PCD database.\r | |
150 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
151 | @param[in] TokenNumber The PCD token number.\r | |
152 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
d1102dba | 153 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r |
96d6d004 SZ |
154 | \r |
155 | @retval EFI_SUCCESS The PCD information was returned successfully\r | |
156 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
157 | **/\r | |
158 | EFI_STATUS\r | |
159 | ExGetPcdInfo (\r | |
160 | IN PEI_PCD_DATABASE *Database,\r | |
161 | IN CONST EFI_GUID *Guid,\r | |
162 | IN UINTN TokenNumber,\r | |
163 | OUT EFI_PCD_INFO *PcdInfo\r | |
164 | )\r | |
165 | {\r | |
166 | UINTN GuidTableIdx;\r | |
167 | EFI_GUID *MatchGuid;\r | |
168 | EFI_GUID *GuidTable;\r | |
169 | DYNAMICEX_MAPPING *ExMapTable;\r | |
170 | UINTN Index;\r | |
171 | UINT32 LocalTokenNumber;\r | |
172 | \r | |
173 | GuidTable = (EFI_GUID *)((UINT8 *)Database + Database->GuidTableOffset);\r | |
174 | MatchGuid = ScanGuid (GuidTable, Database->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
175 | \r | |
176 | if (MatchGuid == NULL) {\r | |
177 | return EFI_NOT_FOUND;\r | |
178 | }\r | |
179 | \r | |
180 | GuidTableIdx = MatchGuid - GuidTable;\r | |
181 | \r | |
182 | ExMapTable = (DYNAMICEX_MAPPING *)((UINT8 *)Database + Database->ExMapTableOffset);\r | |
183 | \r | |
184 | //\r | |
185 | // Find the PCD by GuidTableIdx and ExTokenNumber in ExMapTable.\r | |
186 | //\r | |
187 | for (Index = 0; Index < Database->ExTokenCount; Index++) {\r | |
188 | if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) {\r | |
189 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
190 | //\r | |
191 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
192 | // PcdSize to 0 and PcdName to the null-terminated ASCII string\r | |
193 | // associated with the token's namespace Guid.\r | |
194 | //\r | |
195 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
196 | PcdInfo->PcdSize = 0;\r | |
197 | //\r | |
198 | // Here use one representative in the token space to get the TokenSpaceCName.\r | |
d1102dba | 199 | //\r |
96d6d004 SZ |
200 | PcdInfo->PcdName = GetPcdName (TRUE, Database, ExMapTable[Index].TokenNumber);\r |
201 | return EFI_SUCCESS;\r | |
202 | } else if (ExMapTable[Index].ExTokenNumber == TokenNumber) {\r | |
203 | PcdInfo->PcdSize = PeiPcdGetSize (ExMapTable[Index].TokenNumber);\r | |
204 | LocalTokenNumber = GetLocalTokenNumber (Database, ExMapTable[Index].TokenNumber);\r | |
205 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
206 | PcdInfo->PcdName = GetPcdName (FALSE, Database, ExMapTable[Index].TokenNumber);\r | |
207 | return EFI_SUCCESS;\r | |
208 | }\r | |
209 | }\r | |
210 | }\r | |
211 | \r | |
212 | return EFI_NOT_FOUND;\r | |
213 | }\r | |
214 | \r | |
215 | /**\r | |
216 | Retrieve additional information associated with a PCD token.\r | |
217 | \r | |
218 | This includes information such as the type of value the TokenNumber is associated with as well as possible\r | |
219 | human readable name that is associated with the token.\r | |
220 | \r | |
221 | @param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r | |
222 | @param[in] TokenNumber The PCD token number.\r | |
223 | @param[out] PcdInfo The returned information associated with the requested TokenNumber.\r | |
224 | The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r | |
225 | \r | |
226 | @retval EFI_SUCCESS The PCD information was returned successfully.\r | |
227 | @retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r | |
228 | **/\r | |
229 | EFI_STATUS\r | |
230 | PeiGetPcdInfo (\r | |
231 | IN CONST EFI_GUID *Guid,\r | |
232 | IN UINTN TokenNumber,\r | |
233 | OUT EFI_PCD_INFO *PcdInfo\r | |
234 | )\r | |
235 | {\r | |
236 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
237 | BOOLEAN PeiExMapTableEmpty;\r | |
238 | UINTN PeiNexTokenNumber;\r | |
239 | UINT32 LocalTokenNumber;\r | |
240 | \r | |
96d6d004 SZ |
241 | ASSERT (PcdInfo != NULL);\r |
242 | \r | |
243 | PeiPcdDb = GetPcdDatabase ();\r | |
244 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r | |
245 | \r | |
246 | if (PeiPcdDb->ExTokenCount == 0) {\r | |
247 | PeiExMapTableEmpty = TRUE;\r | |
248 | } else {\r | |
249 | PeiExMapTableEmpty = FALSE;\r | |
250 | }\r | |
251 | \r | |
252 | if (Guid == NULL) {\r | |
253 | if (TokenNumber > PeiNexTokenNumber) {\r | |
254 | return EFI_NOT_FOUND;\r | |
255 | } else if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r | |
256 | //\r | |
257 | // TokenNumber is 0, follow spec to set PcdType to EFI_PCD_TYPE_8,\r | |
258 | // PcdSize to 0 and PcdName to NULL for default Token Space.\r | |
259 | //\r | |
260 | PcdInfo->PcdType = EFI_PCD_TYPE_8;\r | |
261 | PcdInfo->PcdSize = 0;\r | |
262 | PcdInfo->PcdName = NULL;\r | |
263 | } else {\r | |
264 | PcdInfo->PcdSize = PeiPcdGetSize (TokenNumber);\r | |
265 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber);\r | |
266 | PcdInfo->PcdType = GetPcdType (LocalTokenNumber);\r | |
267 | PcdInfo->PcdName = GetPcdName (FALSE, PeiPcdDb, TokenNumber);\r | |
268 | }\r | |
269 | return EFI_SUCCESS;\r | |
270 | } else {\r | |
271 | if (PeiExMapTableEmpty) {\r | |
272 | return EFI_NOT_FOUND;\r | |
273 | }\r | |
274 | return ExGetPcdInfo (\r | |
275 | PeiPcdDb,\r | |
276 | Guid,\r | |
277 | TokenNumber,\r | |
278 | PcdInfo\r | |
279 | );\r | |
280 | }\r | |
281 | }\r | |
282 | \r | |
80408db0 | 283 | /**\r |
284 | The function registers the CallBackOnSet fucntion\r | |
285 | according to TokenNumber and EFI_GUID space.\r | |
286 | \r | |
fc547e08 | 287 | @param ExTokenNumber The token number.\r |
80408db0 | 288 | @param Guid The GUID space.\r |
289 | @param CallBackFunction The Callback function to be registered.\r | |
290 | @param Register To register or unregister the callback function.\r | |
291 | \r | |
292 | @retval EFI_SUCCESS If the Callback function is registered.\r | |
293 | @retval EFI_NOT_FOUND If the PCD Entry is not found according to Token Number and GUID space.\r | |
294 | @retval EFI_OUT_OF_RESOURCES If the callback function can't be registered because there is not free\r | |
295 | slot left in the CallbackFnTable.\r | |
8ec8bed4 | 296 | @retval EFI_INVALID_PARAMETER If the callback function want to be de-registered can not be found.\r |
fc547e08 | 297 | **/\r |
80408db0 | 298 | EFI_STATUS\r |
299 | PeiRegisterCallBackWorker (\r | |
300 | IN UINTN ExTokenNumber,\r | |
301 | IN CONST EFI_GUID *Guid, OPTIONAL\r | |
302 | IN PCD_PPI_CALLBACK CallBackFunction,\r | |
303 | IN BOOLEAN Register\r | |
304 | )\r | |
305 | {\r | |
306 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
307 | PCD_PPI_CALLBACK *CallbackTable;\r | |
308 | PCD_PPI_CALLBACK Compare;\r | |
309 | PCD_PPI_CALLBACK Assign;\r | |
310 | UINT32 LocalTokenNumber;\r | |
419db80b BF |
311 | UINT32 LocalTokenCount;\r |
312 | UINTN PeiNexTokenNumber;\r | |
80408db0 | 313 | UINTN TokenNumber;\r |
314 | UINTN Idx;\r | |
419db80b BF |
315 | PEI_PCD_DATABASE *PeiPcdDb;\r |
316 | \r | |
317 | PeiPcdDb = GetPcdDatabase();\r | |
318 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
319 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r | |
80408db0 | 320 | \r |
321 | if (Guid == NULL) {\r | |
322 | TokenNumber = ExTokenNumber;\r | |
80408db0 | 323 | //\r |
324 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
325 | // We have to decrement TokenNumber by 1 to make it usable\r | |
326 | // as the array index.\r | |
327 | //\r | |
328 | TokenNumber--;\r | |
419db80b | 329 | ASSERT (TokenNumber + 1 < (PeiNexTokenNumber + 1));\r |
80408db0 | 330 | } else {\r |
331 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 332 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
333 | return EFI_NOT_FOUND;\r | |
334 | }\r | |
80408db0 | 335 | //\r |
336 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
337 | // We have to decrement TokenNumber by 1 to make it usable\r | |
338 | // as the array index.\r | |
339 | //\r | |
340 | TokenNumber--;\r | |
341 | // EBC compiler is very choosy. It may report warning about comparison\r | |
d1102dba | 342 | // between UINTN and 0 . So we add 1 in each size of the\r |
80408db0 | 343 | // comparison.\r |
419db80b | 344 | ASSERT ((TokenNumber + 1) < (LocalTokenCount + 1));\r |
80408db0 | 345 | }\r |
346 | \r | |
347 | \r | |
419db80b | 348 | LocalTokenNumber = *((UINT32 *)((UINT8 *)PeiPcdDb + PeiPcdDb->LocalTokenNumberTableOffset) + TokenNumber);\r |
80408db0 | 349 | \r |
350 | //\r | |
351 | // We don't support SET for HII and VPD type PCD entry in PEI phase.\r | |
352 | // So we will assert if any register callback for such PCD entry.\r | |
353 | //\r | |
354 | ASSERT ((LocalTokenNumber & PCD_TYPE_HII) == 0);\r | |
355 | ASSERT ((LocalTokenNumber & PCD_TYPE_VPD) == 0);\r | |
356 | \r | |
96cb78a1 | 357 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 358 | ASSERT (GuidHob != NULL);\r |
d1102dba | 359 | \r |
80408db0 | 360 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r |
188e4e84 | 361 | CallbackTable = CallbackTable + (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 362 | \r |
363 | Compare = Register? NULL: CallBackFunction;\r | |
364 | Assign = Register? CallBackFunction: NULL;\r | |
365 | \r | |
366 | \r | |
188e4e84 | 367 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 368 | if (CallbackTable[Idx] == Compare) {\r |
369 | CallbackTable[Idx] = Assign;\r | |
370 | return EFI_SUCCESS;\r | |
371 | }\r | |
372 | }\r | |
373 | \r | |
8ec8bed4 | 374 | return Register? EFI_OUT_OF_RESOURCES : EFI_INVALID_PARAMETER;\r |
80408db0 | 375 | \r |
376 | }\r | |
377 | \r | |
419db80b BF |
378 | \r |
379 | /**\r | |
d1102dba | 380 | Find the Pcd database.\r |
419db80b BF |
381 | \r |
382 | @param FileHandle Handle of the file the external PCD database binary located.\r | |
383 | \r | |
384 | @retval The base address of external PCD database binary.\r | |
385 | @retval NULL Return NULL if not find.\r | |
386 | **/\r | |
387 | VOID *\r | |
388 | LocateExPcdBinary (\r | |
389 | IN EFI_PEI_FILE_HANDLE FileHandle\r | |
390 | )\r | |
391 | {\r | |
392 | EFI_STATUS Status;\r | |
393 | VOID *PcdDb;\r | |
394 | \r | |
395 | PcdDb = NULL;\r | |
396 | \r | |
397 | ASSERT (FileHandle != NULL);\r | |
398 | \r | |
399 | Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb);\r | |
400 | ASSERT_EFI_ERROR (Status);\r | |
401 | \r | |
402 | //\r | |
403 | // Check the first bytes (Header Signature Guid) and build version.\r | |
404 | //\r | |
405 | if (!CompareGuid (PcdDb, &gPcdDataBaseSignatureGuid) ||\r | |
406 | (((PEI_PCD_DATABASE *) PcdDb)->BuildVersion != PCD_SERVICE_PEIM_VERSION)) {\r | |
407 | ASSERT (FALSE);\r | |
408 | }\r | |
409 | return PcdDb;\r | |
410 | }\r | |
411 | \r | |
412 | \r | |
80408db0 | 413 | /**\r |
414 | The function builds the PCD database.\r | |
419db80b BF |
415 | \r |
416 | @param FileHandle Handle of the file the external PCD database binary located.\r | |
417 | \r | |
96d6d004 | 418 | @return Pointer to PCD database.\r |
fc547e08 | 419 | **/\r |
96d6d004 | 420 | PEI_PCD_DATABASE *\r |
80408db0 | 421 | BuildPcdDatabase (\r |
419db80b | 422 | IN EFI_PEI_FILE_HANDLE FileHandle\r |
80408db0 | 423 | )\r |
424 | {\r | |
419db80b BF |
425 | PEI_PCD_DATABASE *Database;\r |
426 | PEI_PCD_DATABASE *PeiPcdDbBinary;\r | |
427 | VOID *CallbackFnTable;\r | |
428 | UINTN SizeOfCallbackFnTable;\r | |
429 | \r | |
430 | //\r | |
431 | // Locate the external PCD database binary for one section of current FFS\r | |
432 | //\r | |
433 | PeiPcdDbBinary = LocateExPcdBinary (FileHandle);\r | |
80408db0 | 434 | \r |
419db80b BF |
435 | ASSERT(PeiPcdDbBinary != NULL);\r |
436 | \r | |
437 | Database = BuildGuidHob (&gPcdDataBaseHobGuid, PeiPcdDbBinary->Length + PeiPcdDbBinary->UninitDataBaseSize);\r | |
438 | \r | |
439 | ZeroMem (Database, PeiPcdDbBinary->Length + PeiPcdDbBinary->UninitDataBaseSize);\r | |
80408db0 | 440 | \r |
441 | //\r | |
419db80b | 442 | // PeiPcdDbBinary is smaller than Database\r |
80408db0 | 443 | //\r |
419db80b | 444 | CopyMem (Database, PeiPcdDbBinary, PeiPcdDbBinary->Length);\r |
80408db0 | 445 | \r |
419db80b | 446 | SizeOfCallbackFnTable = Database->LocalTokenCount * sizeof (PCD_PPI_CALLBACK) * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry);\r |
80408db0 | 447 | \r |
96cb78a1 | 448 | CallbackFnTable = BuildGuidHob (&gEfiCallerIdGuid, SizeOfCallbackFnTable);\r |
d1102dba | 449 | \r |
80408db0 | 450 | ZeroMem (CallbackFnTable, SizeOfCallbackFnTable);\r |
96d6d004 SZ |
451 | \r |
452 | return Database;\r | |
80408db0 | 453 | }\r |
454 | \r | |
80408db0 | 455 | /**\r |
456 | The function is provided by PCD PEIM and PCD DXE driver to\r | |
457 | do the work of reading a HII variable from variable service.\r | |
458 | \r | |
459 | @param VariableGuid The Variable GUID.\r | |
460 | @param VariableName The Variable Name.\r | |
461 | @param VariableData The output data.\r | |
462 | @param VariableSize The size of the variable.\r | |
463 | \r | |
464 | @retval EFI_SUCCESS Operation successful.\r | |
465 | @retval EFI_NOT_FOUND Variablel not found.\r | |
fc547e08 | 466 | **/\r |
80408db0 | 467 | EFI_STATUS\r |
468 | GetHiiVariable (\r | |
469 | IN CONST EFI_GUID *VariableGuid,\r | |
470 | IN UINT16 *VariableName,\r | |
471 | OUT VOID **VariableData,\r | |
472 | OUT UINTN *VariableSize\r | |
473 | )\r | |
474 | {\r | |
475 | UINTN Size;\r | |
476 | EFI_STATUS Status;\r | |
477 | VOID *Buffer;\r | |
97a079ed | 478 | EFI_PEI_READ_ONLY_VARIABLE2_PPI *VariablePpi;\r |
80408db0 | 479 | \r |
97a079ed | 480 | Status = PeiServicesLocatePpi (&gEfiPeiReadOnlyVariable2PpiGuid, 0, NULL, (VOID **) &VariablePpi);\r |
80408db0 | 481 | ASSERT_EFI_ERROR (Status);\r |
482 | \r | |
483 | Size = 0;\r | |
97a079ed A |
484 | Status = VariablePpi->GetVariable (\r |
485 | VariablePpi,\r | |
80408db0 | 486 | VariableName,\r |
487 | (EFI_GUID *) VariableGuid,\r | |
488 | NULL,\r | |
489 | &Size,\r | |
490 | NULL\r | |
97a079ed | 491 | );\r |
80408db0 | 492 | \r |
e5618791 | 493 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
80408db0 | 494 | Status = PeiServicesAllocatePool (Size, &Buffer);\r |
495 | ASSERT_EFI_ERROR (Status);\r | |
496 | \r | |
97a079ed A |
497 | Status = VariablePpi->GetVariable (\r |
498 | VariablePpi,\r | |
80408db0 | 499 | (UINT16 *) VariableName,\r |
500 | (EFI_GUID *) VariableGuid,\r | |
501 | NULL,\r | |
502 | &Size,\r | |
503 | Buffer\r | |
504 | );\r | |
505 | ASSERT_EFI_ERROR (Status);\r | |
506 | \r | |
507 | *VariableSize = Size;\r | |
508 | *VariableData = Buffer;\r | |
509 | \r | |
510 | return EFI_SUCCESS;\r | |
e5618791 | 511 | }\r |
80408db0 | 512 | \r |
fc547e08 | 513 | return EFI_NOT_FOUND;\r |
80408db0 | 514 | }\r |
515 | \r | |
fc547e08 | 516 | /**\r |
d1102dba | 517 | Invoke the callback function when dynamic PCD entry was set, if this PCD entry\r |
fc547e08 | 518 | has registered callback function.\r |
80408db0 | 519 | \r |
fc547e08 | 520 | @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r |
521 | type PCD.\r | |
522 | @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type\r | |
523 | PCD.\r | |
524 | @param TokenNumber PCD token number generated by build tools.\r | |
525 | @param Data Value want to be set for this PCD entry\r | |
526 | @param Size The size of value\r | |
80408db0 | 527 | \r |
fc547e08 | 528 | **/\r |
80408db0 | 529 | VOID\r |
530 | InvokeCallbackOnSet (\r | |
531 | UINTN ExTokenNumber,\r | |
532 | CONST EFI_GUID *Guid, OPTIONAL\r | |
533 | UINTN TokenNumber,\r | |
534 | VOID *Data,\r | |
535 | UINTN Size\r | |
536 | )\r | |
537 | {\r | |
538 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
539 | PCD_PPI_CALLBACK *CallbackTable;\r | |
540 | UINTN Idx;\r | |
419db80b BF |
541 | PEI_PCD_DATABASE *PeiPcdDb;\r |
542 | UINT32 LocalTokenCount;\r | |
80408db0 | 543 | \r |
544 | //\r | |
545 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
546 | // We have to decrement TokenNumber by 1 to make it usable\r | |
547 | // as the array index.\r | |
548 | //\r | |
549 | TokenNumber--;\r | |
419db80b BF |
550 | \r |
551 | PeiPcdDb = GetPcdDatabase ();\r | |
552 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
553 | \r | |
80408db0 | 554 | if (Guid == NULL) {\r |
555 | // EBC compiler is very choosy. It may report warning about comparison\r | |
d1102dba | 556 | // between UINTN and 0 . So we add 1 in each size of the\r |
80408db0 | 557 | // comparison.\r |
419db80b | 558 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 559 | }\r |
560 | \r | |
96cb78a1 | 561 | GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r |
80408db0 | 562 | ASSERT (GuidHob != NULL);\r |
d1102dba | 563 | \r |
80408db0 | 564 | CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r |
565 | \r | |
188e4e84 | 566 | CallbackTable += (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r |
80408db0 | 567 | \r |
188e4e84 | 568 | for (Idx = 0; Idx < PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry); Idx++) {\r |
80408db0 | 569 | if (CallbackTable[Idx] != NULL) {\r |
570 | CallbackTable[Idx] (Guid,\r | |
736c5dd5 | 571 | (Guid == NULL) ? (TokenNumber + 1) : ExTokenNumber,\r |
80408db0 | 572 | Data,\r |
573 | Size\r | |
574 | );\r | |
575 | }\r | |
576 | }\r | |
80408db0 | 577 | }\r |
578 | \r | |
fc547e08 | 579 | /**\r |
580 | Wrapper function for setting non-pointer type value for a PCD entry.\r | |
581 | \r | |
582 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
583 | @param Data Value want to be set for PCD entry\r | |
584 | @param Size Size of value.\r | |
80408db0 | 585 | \r |
fc547e08 | 586 | @return status of SetWorker.\r |
80408db0 | 587 | \r |
fc547e08 | 588 | **/\r |
80408db0 | 589 | EFI_STATUS\r |
590 | SetValueWorker (\r | |
591 | IN UINTN TokenNumber,\r | |
592 | IN VOID *Data,\r | |
593 | IN UINTN Size\r | |
594 | )\r | |
595 | {\r | |
596 | return SetWorker (TokenNumber, Data, &Size, FALSE);\r | |
597 | }\r | |
598 | \r | |
fc547e08 | 599 | /**\r |
600 | Set value for an PCD entry\r | |
601 | \r | |
602 | @param TokenNumber Pcd token number autogenerated by build tools.\r | |
603 | @param Data Value want to be set for PCD entry\r | |
604 | @param Size Size of value.\r | |
605 | @param PtrType If TRUE, the type of PCD entry's value is Pointer.\r | |
606 | If False, the type of PCD entry's value is not Pointer.\r | |
607 | \r | |
608 | @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set.\r | |
609 | @retval EFI_INVALID_PARAMETER If Size can not be set to size table.\r | |
149fb6d6 | 610 | @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.\r |
fc547e08 | 611 | @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r |
612 | range of UINT8, UINT16, UINT32, UINT64\r | |
d1102dba | 613 | @retval EFI_NOT_FOUND Can not find the PCD type according to token number.\r |
fc547e08 | 614 | **/\r |
80408db0 | 615 | EFI_STATUS\r |
616 | SetWorker (\r | |
617 | IN UINTN TokenNumber,\r | |
fc547e08 | 618 | IN VOID *Data,\r |
80408db0 | 619 | IN OUT UINTN *Size,\r |
620 | IN BOOLEAN PtrType\r | |
621 | )\r | |
622 | {\r | |
623 | UINT32 LocalTokenNumber;\r | |
419db80b | 624 | UINTN PeiNexTokenNumber;\r |
80408db0 | 625 | PEI_PCD_DATABASE *PeiPcdDb;\r |
6cfc7292 | 626 | STRING_HEAD StringTableIdx;\r |
80408db0 | 627 | UINTN Offset;\r |
628 | VOID *InternalData;\r | |
629 | UINTN MaxSize;\r | |
419db80b | 630 | UINT32 LocalTokenCount;\r |
80408db0 | 631 | \r |
f806dd27 | 632 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 633 | return EFI_UNSUPPORTED;\r |
634 | }\r | |
d1102dba | 635 | \r |
80408db0 | 636 | //\r |
637 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
638 | // We have to decrement TokenNumber by 1 to make it usable\r | |
639 | // as the array index.\r | |
640 | //\r | |
641 | TokenNumber--;\r | |
419db80b BF |
642 | PeiPcdDb = GetPcdDatabase ();\r |
643 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
80408db0 | 644 | \r |
645 | // EBC compiler is very choosy. It may report warning about comparison\r | |
d1102dba | 646 | // between UINTN and 0 . So we add 1 in each size of the\r |
80408db0 | 647 | // comparison.\r |
419db80b | 648 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 649 | \r |
8ec8bed4 | 650 | if (PtrType) {\r |
64894410 LG |
651 | //\r |
652 | // Get MaxSize first, then check new size with max buffer size.\r | |
653 | //\r | |
654 | GetPtrTypeSize (TokenNumber, &MaxSize, PeiPcdDb);\r | |
655 | if (*Size > MaxSize) {\r | |
cb40609c | 656 | *Size = MaxSize;\r |
8ec8bed4 | 657 | return EFI_INVALID_PARAMETER;\r |
658 | }\r | |
659 | } else {\r | |
660 | if (*Size != PeiPcdGetSize (TokenNumber + 1)) {\r | |
661 | return EFI_INVALID_PARAMETER;\r | |
662 | }\r | |
80408db0 | 663 | }\r |
664 | \r | |
665 | //\r | |
666 | // We only invoke the callback function for Dynamic Type PCD Entry.\r | |
667 | // For Dynamic EX PCD entry, we have invoked the callback function for Dynamic EX\r | |
668 | // type PCD entry in ExSetWorker.\r | |
669 | //\r | |
419db80b BF |
670 | PeiNexTokenNumber = PeiPcdDb->LocalTokenCount - PeiPcdDb->ExTokenCount;\r |
671 | if (TokenNumber + 1 < PeiNexTokenNumber + 1) {\r | |
80408db0 | 672 | InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size);\r |
673 | }\r | |
674 | \r | |
96d6d004 | 675 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber + 1);\r |
80408db0 | 676 | \r |
677 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
678 | InternalData = (VOID *) ((UINT8 *) PeiPcdDb + Offset);\r | |
d1102dba | 679 | \r |
80408db0 | 680 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r |
681 | case PCD_TYPE_VPD:\r | |
682 | case PCD_TYPE_HII:\r | |
6ac15f7c | 683 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 684 | {\r |
685 | ASSERT (FALSE);\r | |
686 | return EFI_INVALID_PARAMETER;\r | |
687 | }\r | |
688 | \r | |
689 | case PCD_TYPE_STRING:\r | |
690 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
6cfc7292 | 691 | StringTableIdx = *((STRING_HEAD *)InternalData);\r |
419db80b | 692 | CopyMem ((UINT8 *)PeiPcdDb + PeiPcdDb->StringTableOffset + StringTableIdx, Data, *Size);\r |
80408db0 | 693 | return EFI_SUCCESS;\r |
694 | } else {\r | |
695 | return EFI_INVALID_PARAMETER;\r | |
696 | }\r | |
697 | \r | |
698 | case PCD_TYPE_DATA:\r | |
699 | {\r | |
700 | if (PtrType) {\r | |
701 | if (SetPtrTypeSize (TokenNumber, Size, PeiPcdDb)) {\r | |
702 | CopyMem (InternalData, Data, *Size);\r | |
703 | return EFI_SUCCESS;\r | |
704 | } else {\r | |
705 | return EFI_INVALID_PARAMETER;\r | |
706 | }\r | |
707 | }\r | |
708 | \r | |
709 | switch (*Size) {\r | |
710 | case sizeof(UINT8):\r | |
711 | *((UINT8 *) InternalData) = *((UINT8 *) Data);\r | |
712 | return EFI_SUCCESS;\r | |
713 | \r | |
714 | case sizeof(UINT16):\r | |
715 | *((UINT16 *) InternalData) = *((UINT16 *) Data);\r | |
716 | return EFI_SUCCESS;\r | |
717 | \r | |
718 | case sizeof(UINT32):\r | |
719 | *((UINT32 *) InternalData) = *((UINT32 *) Data);\r | |
720 | return EFI_SUCCESS;\r | |
721 | \r | |
722 | case sizeof(UINT64):\r | |
723 | *((UINT64 *) InternalData) = *((UINT64 *) Data);\r | |
724 | return EFI_SUCCESS;\r | |
725 | \r | |
726 | default:\r | |
727 | ASSERT (FALSE);\r | |
728 | return EFI_NOT_FOUND;\r | |
729 | }\r | |
730 | }\r | |
d1102dba | 731 | \r |
80408db0 | 732 | }\r |
733 | \r | |
734 | ASSERT (FALSE);\r | |
735 | return EFI_NOT_FOUND;\r | |
736 | \r | |
737 | }\r | |
738 | \r | |
fc547e08 | 739 | /**\r |
740 | Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD.\r | |
80408db0 | 741 | \r |
fc547e08 | 742 | @param ExTokenNumber Token number for dynamic-ex PCD.\r |
743 | @param Guid Token space guid for dynamic-ex PCD.\r | |
744 | @param Data Value want to be set.\r | |
745 | @param SetSize The size of value.\r | |
80408db0 | 746 | \r |
fc547e08 | 747 | @return status of ExSetWorker().\r |
748 | \r | |
749 | **/\r | |
80408db0 | 750 | EFI_STATUS\r |
751 | ExSetValueWorker (\r | |
752 | IN UINTN ExTokenNumber,\r | |
753 | IN CONST EFI_GUID *Guid,\r | |
754 | IN VOID *Data,\r | |
755 | IN UINTN Size\r | |
756 | )\r | |
757 | {\r | |
758 | return ExSetWorker (ExTokenNumber, Guid, Data, &Size, FALSE);\r | |
759 | }\r | |
760 | \r | |
fc547e08 | 761 | /**\r |
419db80b | 762 | Set value for a dynamic-ex PCD entry.\r |
d1102dba LG |
763 | \r |
764 | This routine find the local token number according to dynamic-ex PCD's token\r | |
fc547e08 | 765 | space guid and token number firstly, and invoke callback function if this PCD\r |
766 | entry registered callback function. Finally, invoken general SetWorker to set\r | |
767 | PCD value.\r | |
d1102dba | 768 | \r |
fc547e08 | 769 | @param ExTokenNumber Dynamic-ex PCD token number.\r |
770 | @param Guid Token space guid for dynamic-ex PCD.\r | |
771 | @param Data PCD value want to be set\r | |
772 | @param SetSize Size of value.\r | |
773 | @param PtrType If TRUE, this PCD entry is pointer type.\r | |
774 | If FALSE, this PCD entry is not pointer type.\r | |
80408db0 | 775 | \r |
fc547e08 | 776 | @return status of SetWorker().\r |
80408db0 | 777 | \r |
fc547e08 | 778 | **/\r |
80408db0 | 779 | EFI_STATUS\r |
780 | ExSetWorker (\r | |
781 | IN UINTN ExTokenNumber,\r | |
782 | IN CONST EFI_GUID *Guid,\r | |
783 | IN VOID *Data,\r | |
784 | IN OUT UINTN *Size,\r | |
785 | IN BOOLEAN PtrType\r | |
786 | )\r | |
787 | {\r | |
788 | UINTN TokenNumber;\r | |
789 | \r | |
f806dd27 | 790 | if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r |
80408db0 | 791 | return EFI_UNSUPPORTED;\r |
792 | }\r | |
793 | \r | |
794 | TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);\r | |
86714ccd | 795 | if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r |
796 | return EFI_NOT_FOUND;\r | |
797 | }\r | |
d1102dba | 798 | \r |
80408db0 | 799 | InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, *Size);\r |
800 | \r | |
801 | return SetWorker (TokenNumber, Data, Size, PtrType);\r | |
802 | \r | |
803 | }\r | |
804 | \r | |
fc547e08 | 805 | /**\r |
806 | Wrapper function for get PCD value for dynamic-ex PCD.\r | |
80408db0 | 807 | \r |
fc547e08 | 808 | @param Guid Token space guid for dynamic-ex PCD.\r |
809 | @param ExTokenNumber Token number for dyanmic-ex PCD.\r | |
810 | @param GetSize The size of dynamic-ex PCD value.\r | |
80408db0 | 811 | \r |
fc547e08 | 812 | @return PCD entry in PCD database.\r |
80408db0 | 813 | \r |
fc547e08 | 814 | **/\r |
80408db0 | 815 | VOID *\r |
816 | ExGetWorker (\r | |
817 | IN CONST EFI_GUID *Guid,\r | |
818 | IN UINTN ExTokenNumber,\r | |
819 | IN UINTN GetSize\r | |
820 | )\r | |
d1102dba | 821 | {\r |
80408db0 | 822 | return GetWorker (GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);\r |
823 | }\r | |
824 | \r | |
fc547e08 | 825 | /**\r |
826 | Get the PCD entry pointer in PCD database.\r | |
d1102dba | 827 | \r |
fc547e08 | 828 | This routine will visit PCD database to find the PCD entry according to given\r |
d1102dba LG |
829 | token number. The given token number is autogened by build tools and it will be\r |
830 | translated to local token number. Local token number contains PCD's type and\r | |
fc547e08 | 831 | offset of PCD entry in PCD database.\r |
80408db0 | 832 | \r |
fc547e08 | 833 | @param TokenNumber Token's number, it is autogened by build tools\r |
834 | @param GetSize The size of token's value\r | |
80408db0 | 835 | \r |
fc547e08 | 836 | @return PCD entry pointer in PCD database\r |
80408db0 | 837 | \r |
fc547e08 | 838 | **/\r |
80408db0 | 839 | VOID *\r |
840 | GetWorker (\r | |
fc547e08 | 841 | IN UINTN TokenNumber,\r |
842 | IN UINTN GetSize\r | |
80408db0 | 843 | )\r |
844 | {\r | |
845 | UINT32 Offset;\r | |
846 | EFI_GUID *Guid;\r | |
847 | UINT16 *Name;\r | |
848 | VARIABLE_HEAD *VariableHead;\r | |
849 | EFI_STATUS Status;\r | |
850 | UINTN DataSize;\r | |
851 | VOID *Data;\r | |
d0965169 | 852 | UINT8 *StringTable;\r |
6cfc7292 | 853 | STRING_HEAD StringTableIdx;\r |
80408db0 | 854 | PEI_PCD_DATABASE *PeiPcdDb;\r |
855 | UINT32 LocalTokenNumber;\r | |
419db80b | 856 | UINT32 LocalTokenCount;\r |
553e8669 | 857 | UINT8 *VaraiableDefaultBuffer;\r |
534efca0 | 858 | UINTN VpdBaseAddress;\r |
80408db0 | 859 | \r |
860 | //\r | |
861 | // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r | |
862 | // We have to decrement TokenNumber by 1 to make it usable\r | |
863 | // as the array index.\r | |
864 | //\r | |
865 | TokenNumber--;\r | |
866 | \r | |
419db80b BF |
867 | PeiPcdDb = GetPcdDatabase ();\r |
868 | LocalTokenCount = PeiPcdDb->LocalTokenCount;\r | |
869 | \r | |
80408db0 | 870 | // EBC compiler is very choosy. It may report warning about comparison\r |
d1102dba | 871 | // between UINTN and 0 . So we add 1 in each size of the\r |
80408db0 | 872 | // comparison.\r |
419db80b | 873 | ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r |
80408db0 | 874 | \r |
875 | ASSERT ((GetSize == PeiPcdGetSize(TokenNumber + 1)) || (GetSize == 0));\r | |
876 | \r | |
96d6d004 | 877 | LocalTokenNumber = GetLocalTokenNumber (PeiPcdDb, TokenNumber + 1);\r |
80408db0 | 878 | \r |
879 | Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r | |
419db80b BF |
880 | StringTable = (UINT8 *)PeiPcdDb + PeiPcdDb->StringTableOffset;\r |
881 | \r | |
80408db0 | 882 | switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r |
883 | case PCD_TYPE_VPD:\r | |
884 | {\r | |
885 | VPD_HEAD *VpdHead;\r | |
886 | VpdHead = (VPD_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
534efca0 LG |
887 | \r |
888 | //\r | |
889 | // PcdVpdBaseAddress64 is DynamicEx PCD only. So, PeiPcdGet64Ex() is used to get its value.\r | |
890 | //\r | |
891 | VpdBaseAddress = (UINTN) PeiPcdGet64Ex (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdVpdBaseAddress64));\r | |
892 | if (VpdBaseAddress == 0) {\r | |
893 | //\r | |
894 | // PcdVpdBaseAddress64 is not set, get value from PcdVpdBaseAddress.\r | |
895 | //\r | |
896 | VpdBaseAddress = (UINTN) PcdGet32 (PcdVpdBaseAddress);\r | |
897 | }\r | |
898 | ASSERT (VpdBaseAddress != 0);\r | |
899 | return (VOID *)(VpdBaseAddress + VpdHead->Offset);\r | |
80408db0 | 900 | }\r |
d1102dba | 901 | \r |
6ac15f7c | 902 | case PCD_TYPE_HII|PCD_TYPE_STRING:\r |
80408db0 | 903 | case PCD_TYPE_HII:\r |
904 | {\r | |
905 | VariableHead = (VARIABLE_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r | |
d1102dba | 906 | \r |
419db80b | 907 | Guid = (EFI_GUID *) ((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset) + VariableHead->GuidTableIndex;\r |
d0965169 | 908 | Name = (UINT16*)&StringTable[VariableHead->StringIndex];\r |
80408db0 | 909 | \r |
553e8669 | 910 | if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r |
80408db0 | 911 | //\r |
d1102dba | 912 | // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of\r |
553e8669 | 913 | // string array in string table.\r |
80408db0 | 914 | //\r |
d1102dba | 915 | VaraiableDefaultBuffer = (UINT8 *) &StringTable[*(STRING_HEAD*)((UINT8*) PeiPcdDb + VariableHead->DefaultValueOffset)];\r |
553e8669 SZ |
916 | } else {\r |
917 | VaraiableDefaultBuffer = (UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset;\r | |
918 | }\r | |
919 | Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r | |
920 | if ((Status == EFI_SUCCESS) && (DataSize >= (VariableHead->Offset + GetSize))) {\r | |
921 | if (GetSize == 0) {\r | |
922 | //\r | |
923 | // It is a pointer type. So get the MaxSize reserved for\r | |
924 | // this PCD entry.\r | |
925 | //\r | |
926 | GetPtrTypeSize (TokenNumber, &GetSize, PeiPcdDb);\r | |
927 | if (GetSize > (DataSize - VariableHead->Offset)) {\r | |
928 | //\r | |
929 | // Use actual valid size.\r | |
930 | //\r | |
931 | GetSize = DataSize - VariableHead->Offset;\r | |
932 | }\r | |
6ac15f7c | 933 | }\r |
553e8669 SZ |
934 | //\r |
935 | // If the operation is successful, we copy the data\r | |
936 | // to the default value buffer in the PCD Database.\r | |
937 | //\r | |
938 | CopyMem (VaraiableDefaultBuffer, (UINT8 *) Data + VariableHead->Offset, GetSize);\r | |
80408db0 | 939 | }\r |
553e8669 | 940 | return (VOID *) VaraiableDefaultBuffer;\r |
80408db0 | 941 | }\r |
942 | \r | |
943 | case PCD_TYPE_DATA:\r | |
944 | return (VOID *) ((UINT8 *)PeiPcdDb + Offset);\r | |
945 | \r | |
946 | case PCD_TYPE_STRING:\r | |
6cfc7292 | 947 | StringTableIdx = * (STRING_HEAD*) ((UINT8 *) PeiPcdDb + Offset);\r |
80408db0 | 948 | return (VOID *) (&StringTable[StringTableIdx]);\r |
949 | \r | |
950 | default:\r | |
951 | ASSERT (FALSE);\r | |
952 | break;\r | |
d1102dba | 953 | \r |
80408db0 | 954 | }\r |
955 | \r | |
956 | ASSERT (FALSE);\r | |
d1102dba | 957 | \r |
80408db0 | 958 | return NULL;\r |
d1102dba | 959 | \r |
80408db0 | 960 | }\r |
961 | \r | |
fc547e08 | 962 | /**\r |
419db80b | 963 | Get Token Number according to dynamic-ex PCD's {token space guid:token number}\r |
fc547e08 | 964 | \r |
965 | A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r | |
966 | in DEC file. PCD database maintain a mapping table that translate pair of {token\r | |
419db80b | 967 | space guid: token number} to Token Number.\r |
d1102dba | 968 | \r |
fc547e08 | 969 | @param Guid Token space guid for dynamic-ex PCD entry.\r |
419db80b | 970 | @param ExTokenNumber Dynamic-ex PCD token number.\r |
80408db0 | 971 | \r |
419db80b | 972 | @return Token Number for dynamic-ex PCD.\r |
80408db0 | 973 | \r |
fc547e08 | 974 | **/\r |
d1102dba | 975 | UINTN\r |
80408db0 | 976 | GetExPcdTokenNumber (\r |
977 | IN CONST EFI_GUID *Guid,\r | |
978 | IN UINTN ExTokenNumber\r | |
979 | )\r | |
980 | {\r | |
fc547e08 | 981 | UINT32 Index;\r |
80408db0 | 982 | DYNAMICEX_MAPPING *ExMap;\r |
983 | EFI_GUID *GuidTable;\r | |
984 | EFI_GUID *MatchGuid;\r | |
985 | UINTN MatchGuidIdx;\r | |
986 | PEI_PCD_DATABASE *PeiPcdDb;\r | |
987 | \r | |
988 | PeiPcdDb = GetPcdDatabase();\r | |
80408db0 | 989 | \r |
419db80b BF |
990 | ExMap = (DYNAMICEX_MAPPING *)((UINT8 *)PeiPcdDb + PeiPcdDb->ExMapTableOffset);\r |
991 | GuidTable = (EFI_GUID *)((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset);\r | |
992 | \r | |
993 | MatchGuid = ScanGuid (GuidTable, PeiPcdDb->GuidTableCount * sizeof(EFI_GUID), Guid);\r | |
80408db0 | 994 | //\r |
995 | // We need to ASSERT here. If GUID can't be found in GuidTable, this is a\r | |
996 | // error in the BUILD system.\r | |
997 | //\r | |
998 | ASSERT (MatchGuid != NULL);\r | |
d1102dba | 999 | \r |
80408db0 | 1000 | MatchGuidIdx = MatchGuid - GuidTable;\r |
d1102dba | 1001 | \r |
419db80b | 1002 | for (Index = 0; Index < PeiPcdDb->ExTokenCount; Index++) {\r |
d1102dba | 1003 | if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r |
fc547e08 | 1004 | (MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r |
419db80b | 1005 | return ExMap[Index].TokenNumber;\r |
80408db0 | 1006 | }\r |
1007 | }\r | |
d1102dba | 1008 | \r |
86714ccd | 1009 | return PCD_INVALID_TOKEN_NUMBER;\r |
80408db0 | 1010 | }\r |
1011 | \r | |
fc547e08 | 1012 | /**\r |
1013 | Get PCD database from GUID HOB in PEI phase.\r | |
80408db0 | 1014 | \r |
fc547e08 | 1015 | @return Pointer to PCD database.\r |
80408db0 | 1016 | \r |
fc547e08 | 1017 | **/\r |
80408db0 | 1018 | PEI_PCD_DATABASE *\r |
1019 | GetPcdDatabase (\r | |
1020 | VOID\r | |
1021 | )\r | |
1022 | {\r | |
1023 | EFI_HOB_GUID_TYPE *GuidHob;\r | |
1024 | \r | |
1025 | GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r | |
1026 | ASSERT (GuidHob != NULL);\r | |
d1102dba | 1027 | \r |
80408db0 | 1028 | return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r |
1029 | }\r | |
1030 | \r | |
fc547e08 | 1031 | /**\r |
1032 | Get index of PCD entry in size table.\r | |
1033 | \r | |
1034 | @param LocalTokenNumberTableIdx Index of this PCD in local token number table.\r | |
1035 | @param Database Pointer to PCD database in PEI phase.\r | |
80408db0 | 1036 | \r |
fc547e08 | 1037 | @return index of PCD entry in size table.\r |
80408db0 | 1038 | \r |
fc547e08 | 1039 | **/\r |
80408db0 | 1040 | UINTN\r |
1041 | GetSizeTableIndex (\r | |
1042 | IN UINTN LocalTokenNumberTableIdx,\r | |
1043 | IN PEI_PCD_DATABASE *Database\r | |
1044 | )\r | |
1045 | {\r | |
fc547e08 | 1046 | UINTN Index;\r |
419db80b | 1047 | UINTN SizeTableIdx;\r |
80408db0 | 1048 | UINTN LocalTokenNumber;\r |
7c736265 | 1049 | \r |
80408db0 | 1050 | SizeTableIdx = 0;\r |
1051 | \r | |
419db80b BF |
1052 | for (Index = 0; Index < LocalTokenNumberTableIdx; Index++) {\r |
1053 | LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + Index);\r | |
80408db0 | 1054 | \r |
1055 | if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r | |
1056 | //\r | |
d1102dba | 1057 | // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type\r |
80408db0 | 1058 | // PCD entry.\r |
1059 | //\r | |
fc547e08 | 1060 | if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r |
80408db0 | 1061 | //\r |
419db80b | 1062 | // We have only two entry for VPD enabled PCD entry:\r |
80408db0 | 1063 | // 1) MAX Size.\r |
419db80b BF |
1064 | // 2) Current Size\r |
1065 | // Current size is equal to MAX size.\r | |
80408db0 | 1066 | //\r |
419db80b | 1067 | SizeTableIdx += 2;\r |
80408db0 | 1068 | } else {\r |
80408db0 | 1069 | //\r |
1070 | // We have only two entry for Non-Sku enabled PCD entry:\r | |
1071 | // 1) MAX SIZE\r | |
1072 | // 2) Current Size\r | |
1073 | //\r | |
1074 | SizeTableIdx += 2;\r | |
80408db0 | 1075 | }\r |
1076 | }\r | |
1077 | \r | |
1078 | }\r | |
1079 | \r | |
1080 | return SizeTableIdx;\r | |
1081 | }\r |