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acd32208 CZ |
1 | /** @file\r |
2 | Esrt management module.\r | |
3 | \r | |
d1102dba | 4 | Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
acd32208 CZ |
6 | \r |
7 | **/\r | |
8 | #include "EsrtImpl.h"\r | |
9 | \r | |
10 | \r | |
11 | //\r | |
12 | // Module globals.\r | |
13 | //\r | |
14 | \r | |
15 | ESRT_PRIVATE_DATA mPrivate;\r | |
16 | \r | |
d1102dba | 17 | ESRT_MANAGEMENT_PROTOCOL mEsrtManagementProtocolTemplate = {\r |
acd32208 CZ |
18 | EsrtDxeGetEsrtEntry,\r |
19 | EsrtDxeUpdateEsrtEntry,\r | |
20 | EsrtDxeRegisterEsrtEntry,\r | |
21 | EsrtDxeUnRegisterEsrtEntry,\r | |
22 | EsrtDxeSyncFmp,\r | |
23 | EsrtDxeLockEsrtRepository\r | |
24 | };\r | |
25 | \r | |
26 | /**\r | |
d1102dba LG |
27 | Get ESRT entry from ESRT Cache by FwClass Guid\r |
28 | \r | |
29 | @param[in] FwClass FwClass of Esrt entry to get\r | |
30 | @param[in, out] Entry Esrt entry returned\r | |
acd32208 | 31 | \r |
acd32208 CZ |
32 | @retval EFI_SUCCESS The variable saving this Esrt Entry exists.\r |
33 | @retval EF_NOT_FOUND No correct variable found.\r | |
34 | @retval EFI_WRITE_PROTECTED ESRT Cache repository is locked\r | |
35 | \r | |
36 | **/\r | |
37 | EFI_STATUS\r | |
38 | EFIAPI\r | |
39 | EsrtDxeGetEsrtEntry(\r | |
40 | IN EFI_GUID *FwClass,\r | |
41 | IN OUT EFI_SYSTEM_RESOURCE_ENTRY *Entry\r | |
42 | )\r | |
43 | {\r | |
44 | EFI_STATUS Status;\r | |
45 | \r | |
46 | if (FwClass == NULL || Entry == NULL) {\r | |
47 | return EFI_INVALID_PARAMETER;\r | |
48 | }\r | |
49 | \r | |
50 | Status = EfiAcquireLockOrFail (&mPrivate.NonFmpLock);\r | |
51 | if (EFI_ERROR (Status)) {\r | |
52 | return Status;\r | |
53 | }\r | |
54 | \r | |
55 | //\r | |
56 | // Find in Non-FMP Cached Esrt Repository\r | |
57 | //\r | |
58 | Status = GetEsrtEntry(\r | |
59 | FwClass,\r | |
60 | ESRT_FROM_NONFMP,\r | |
61 | Entry\r | |
62 | );\r | |
63 | \r | |
64 | EfiReleaseLock(&mPrivate.NonFmpLock);\r | |
65 | \r | |
66 | if (EFI_ERROR(Status)) {\r | |
67 | Status = EfiAcquireLockOrFail (&mPrivate.FmpLock);\r | |
68 | if (EFI_ERROR (Status)) {\r | |
69 | return Status;\r | |
70 | }\r | |
71 | \r | |
72 | //\r | |
73 | // Find in FMP Cached Esrt NV Variable\r | |
74 | //\r | |
75 | Status = GetEsrtEntry(\r | |
76 | FwClass,\r | |
77 | ESRT_FROM_FMP,\r | |
78 | Entry\r | |
79 | );\r | |
80 | \r | |
81 | EfiReleaseLock(&mPrivate.FmpLock);\r | |
82 | }\r | |
83 | \r | |
84 | return Status;\r | |
85 | }\r | |
86 | \r | |
87 | /**\r | |
88 | Update one ESRT entry in ESRT Cache.\r | |
89 | \r | |
90 | @param[in] Entry Esrt entry to be updated\r | |
d1102dba | 91 | \r |
acd32208 CZ |
92 | @retval EFI_SUCCESS Successfully update an ESRT entry in cache.\r |
93 | @retval EFI_INVALID_PARAMETER Entry does't exist in ESRT Cache\r | |
94 | @retval EFI_WRITE_PROTECTED ESRT Cache repositoy is locked\r | |
95 | \r | |
96 | **/\r | |
97 | EFI_STATUS\r | |
98 | EFIAPI\r | |
99 | EsrtDxeUpdateEsrtEntry(\r | |
100 | IN EFI_SYSTEM_RESOURCE_ENTRY *Entry\r | |
101 | )\r | |
102 | {\r | |
103 | EFI_STATUS Status;\r | |
d1102dba | 104 | \r |
acd32208 CZ |
105 | if (Entry == NULL) {\r |
106 | return EFI_INVALID_PARAMETER;\r | |
107 | }\r | |
108 | \r | |
109 | Status = EfiAcquireLockOrFail (&mPrivate.FmpLock);\r | |
110 | if (EFI_ERROR (Status)) {\r | |
111 | return Status;\r | |
112 | }\r | |
113 | \r | |
114 | Status = UpdateEsrtEntry(Entry, ESRT_FROM_FMP);\r | |
115 | \r | |
116 | if (!EFI_ERROR(Status)) {\r | |
117 | EfiReleaseLock(&mPrivate.FmpLock);\r | |
118 | return Status;\r | |
119 | }\r | |
120 | EfiReleaseLock(&mPrivate.FmpLock);\r | |
121 | \r | |
122 | \r | |
123 | Status = EfiAcquireLockOrFail (&mPrivate.NonFmpLock);\r | |
124 | if (EFI_ERROR (Status)) {\r | |
125 | return Status;\r | |
126 | }\r | |
127 | \r | |
128 | Status = UpdateEsrtEntry(Entry, ESRT_FROM_NONFMP);\r | |
129 | \r | |
130 | EfiReleaseLock(&mPrivate.NonFmpLock);\r | |
131 | \r | |
132 | return Status;\r | |
133 | }\r | |
134 | \r | |
135 | /**\r | |
d1102dba | 136 | Non-FMP instance to unregister Esrt Entry from ESRT Cache.\r |
acd32208 | 137 | \r |
d1102dba LG |
138 | @param[in] FwClass FwClass of Esrt entry to Unregister\r |
139 | \r | |
140 | @retval EFI_SUCCESS Insert all entries Successfully\r | |
acd32208 CZ |
141 | @retval EFI_NOT_FOUND Entry of FwClass does not exsit\r |
142 | \r | |
143 | **/\r | |
144 | EFI_STATUS\r | |
145 | EFIAPI\r | |
146 | EsrtDxeUnRegisterEsrtEntry(\r | |
147 | IN EFI_GUID *FwClass\r | |
148 | )\r | |
149 | {\r | |
d1102dba | 150 | EFI_STATUS Status;\r |
acd32208 CZ |
151 | \r |
152 | if (FwClass == NULL) {\r | |
153 | return EFI_INVALID_PARAMETER;\r | |
154 | }\r | |
155 | \r | |
156 | Status = EfiAcquireLockOrFail (&mPrivate.NonFmpLock);\r | |
157 | if (EFI_ERROR (Status)) {\r | |
158 | return Status;\r | |
159 | }\r | |
160 | \r | |
161 | Status = DeleteEsrtEntry(FwClass, ESRT_FROM_NONFMP);\r | |
162 | \r | |
163 | EfiReleaseLock(&mPrivate.NonFmpLock);\r | |
164 | \r | |
165 | return Status;\r | |
166 | }\r | |
167 | \r | |
168 | /**\r | |
169 | Non-FMP instance to register one ESRT entry into ESRT Cache.\r | |
170 | \r | |
171 | @param[in] Entry Esrt entry to be set\r | |
172 | \r | |
173 | @retval EFI_SUCCESS Successfully set a variable.\r | |
174 | @retval EFI_INVALID_PARAMETER ESRT Entry is already exist\r | |
175 | @retval EFI_OUT_OF_RESOURCES Non-FMP ESRT repository is full\r | |
176 | \r | |
177 | **/\r | |
178 | EFI_STATUS\r | |
179 | EFIAPI\r | |
180 | EsrtDxeRegisterEsrtEntry(\r | |
181 | IN EFI_SYSTEM_RESOURCE_ENTRY *Entry\r | |
182 | )\r | |
183 | {\r | |
184 | EFI_STATUS Status;\r | |
185 | EFI_SYSTEM_RESOURCE_ENTRY EsrtEntryTmp;\r | |
186 | \r | |
187 | if (Entry == NULL) {\r | |
188 | return EFI_INVALID_PARAMETER;\r | |
189 | }\r | |
190 | \r | |
191 | Status = EfiAcquireLockOrFail (&mPrivate.NonFmpLock);\r | |
192 | if (EFI_ERROR (Status)) {\r | |
193 | return Status;\r | |
194 | }\r | |
195 | \r | |
196 | Status = GetEsrtEntry(\r | |
197 | &Entry->FwClass,\r | |
198 | ESRT_FROM_NONFMP,\r | |
199 | &EsrtEntryTmp\r | |
200 | );\r | |
201 | \r | |
202 | if (Status == EFI_NOT_FOUND) {\r | |
203 | Status = InsertEsrtEntry(Entry, ESRT_FROM_NONFMP);\r | |
204 | }\r | |
205 | \r | |
206 | EfiReleaseLock(&mPrivate.NonFmpLock);\r | |
207 | \r | |
208 | return Status;\r | |
209 | }\r | |
210 | \r | |
211 | /**\r | |
212 | This function syn up Cached ESRT with data from FMP instances\r | |
213 | Function should be called after Connect All in order to locate all FMP protocols\r | |
a3ac2587 | 214 | installed.\r |
acd32208 CZ |
215 | \r |
216 | @retval EFI_SUCCESS Successfully sync cache repository from FMP instances\r | |
217 | @retval EFI_NOT_FOUND No FMP Instance are found\r | |
218 | @retval EFI_OUT_OF_RESOURCES Resource allocaton fail\r | |
219 | \r | |
220 | **/\r | |
221 | EFI_STATUS\r | |
222 | EFIAPI\r | |
223 | EsrtDxeSyncFmp(\r | |
224 | VOID\r | |
d1102dba | 225 | )\r |
acd32208 CZ |
226 | {\r |
227 | EFI_STATUS Status;\r | |
228 | UINTN Index1;\r | |
229 | UINTN Index2;\r | |
230 | UINTN Index3;\r | |
231 | EFI_HANDLE *HandleBuffer;\r | |
232 | EFI_FIRMWARE_MANAGEMENT_PROTOCOL **FmpBuf;\r | |
233 | UINTN NumberOfHandles;\r | |
234 | UINTN *DescriptorSizeBuf;\r | |
d1102dba LG |
235 | EFI_FIRMWARE_IMAGE_DESCRIPTOR **FmpImageInfoBuf;\r |
236 | EFI_FIRMWARE_IMAGE_DESCRIPTOR *TempFmpImageInfo;\r | |
acd32208 CZ |
237 | UINT8 *FmpImageInfoCountBuf;\r |
238 | UINT32 *FmpImageInfoDescriptorVerBuf;\r | |
239 | UINTN ImageInfoSize;\r | |
240 | UINT32 PackageVersion;\r | |
241 | CHAR16 *PackageVersionName;\r | |
242 | EFI_SYSTEM_RESOURCE_ENTRY *EsrtRepositoryNew;\r | |
243 | UINTN EntryNumNew;\r | |
244 | \r | |
245 | NumberOfHandles = 0;\r | |
246 | EntryNumNew = 0;\r | |
247 | FmpBuf = NULL;\r | |
248 | HandleBuffer = NULL;\r | |
249 | FmpImageInfoBuf = NULL;\r | |
250 | FmpImageInfoCountBuf = NULL;\r | |
251 | PackageVersionName = NULL;\r | |
252 | DescriptorSizeBuf = NULL;\r | |
253 | FmpImageInfoDescriptorVerBuf = NULL;\r | |
254 | EsrtRepositoryNew = NULL;\r | |
255 | \r | |
256 | //\r | |
257 | // Get image information from all FMP protocol\r | |
258 | //\r | |
259 | Status = gBS->LocateHandleBuffer (\r | |
260 | ByProtocol,\r | |
261 | &gEfiFirmwareManagementProtocolGuid,\r | |
262 | NULL,\r | |
263 | &NumberOfHandles,\r | |
264 | &HandleBuffer\r | |
265 | );\r | |
266 | \r | |
d1102dba LG |
267 | \r |
268 | if (Status == EFI_NOT_FOUND) {\r | |
acd32208 CZ |
269 | EntryNumNew = 0;\r |
270 | goto UPDATE_REPOSITORY;\r | |
d1102dba | 271 | } else if (EFI_ERROR(Status)){\r |
acd32208 CZ |
272 | goto END;\r |
273 | }\r | |
274 | \r | |
275 | //\r | |
276 | // Allocate buffer to hold new FMP ESRT Cache repository\r | |
277 | //\r | |
278 | EsrtRepositoryNew = AllocateZeroPool(PcdGet32(PcdMaxFmpEsrtCacheNum) * sizeof(EFI_SYSTEM_RESOURCE_ENTRY));\r | |
279 | if (EsrtRepositoryNew == NULL) {\r | |
280 | Status = EFI_OUT_OF_RESOURCES;\r | |
281 | goto END;\r | |
282 | }\r | |
283 | \r | |
284 | FmpBuf = AllocatePool(sizeof(EFI_FIRMWARE_MANAGEMENT_PROTOCOL *) * NumberOfHandles);\r | |
285 | if (FmpBuf == NULL) {\r | |
286 | Status = EFI_OUT_OF_RESOURCES;\r | |
287 | goto END;\r | |
288 | }\r | |
289 | \r | |
290 | FmpImageInfoBuf = AllocateZeroPool(sizeof(EFI_FIRMWARE_IMAGE_DESCRIPTOR *) * NumberOfHandles);\r | |
291 | if (FmpImageInfoBuf == NULL) {\r | |
d1102dba | 292 | Status = EFI_OUT_OF_RESOURCES;\r |
acd32208 CZ |
293 | goto END;\r |
294 | }\r | |
295 | \r | |
296 | FmpImageInfoCountBuf = AllocateZeroPool(sizeof(UINT8) * NumberOfHandles);\r | |
297 | if (FmpImageInfoCountBuf == NULL) {\r | |
298 | Status = EFI_OUT_OF_RESOURCES;\r | |
299 | goto END;\r | |
300 | }\r | |
301 | \r | |
302 | DescriptorSizeBuf = AllocateZeroPool(sizeof(UINTN) * NumberOfHandles);\r | |
303 | if (DescriptorSizeBuf == NULL) {\r | |
304 | Status = EFI_OUT_OF_RESOURCES;\r | |
305 | goto END;\r | |
306 | }\r | |
307 | \r | |
308 | FmpImageInfoDescriptorVerBuf = AllocateZeroPool(sizeof(UINT32) * NumberOfHandles);\r | |
309 | if (FmpImageInfoDescriptorVerBuf == NULL) {\r | |
310 | Status = EFI_OUT_OF_RESOURCES;\r | |
311 | goto END;\r | |
312 | }\r | |
313 | \r | |
314 | //\r | |
315 | // Get all FmpImageInfo Descriptor into FmpImageInfoBuf\r | |
316 | //\r | |
317 | for (Index1 = 0; Index1 < NumberOfHandles; Index1++){\r | |
318 | Status = gBS->HandleProtocol(\r | |
319 | HandleBuffer[Index1],\r | |
320 | &gEfiFirmwareManagementProtocolGuid,\r | |
321 | (VOID **)&FmpBuf[Index1]\r | |
322 | );\r | |
323 | \r | |
324 | if (EFI_ERROR(Status)) {\r | |
325 | continue;\r | |
326 | }\r | |
327 | \r | |
328 | ImageInfoSize = 0;\r | |
329 | Status = FmpBuf[Index1]->GetImageInfo (\r | |
330 | FmpBuf[Index1],\r | |
331 | &ImageInfoSize,\r | |
332 | NULL,\r | |
333 | NULL,\r | |
334 | NULL,\r | |
335 | NULL,\r | |
336 | NULL,\r | |
337 | NULL\r | |
338 | );\r | |
339 | \r | |
340 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
341 | FmpImageInfoBuf[Index1] = AllocateZeroPool(ImageInfoSize);\r | |
342 | if (FmpImageInfoBuf[Index1] == NULL) {\r | |
343 | Status = EFI_OUT_OF_RESOURCES;\r | |
344 | goto END;\r | |
345 | }\r | |
346 | } else {\r | |
347 | continue;\r | |
348 | }\r | |
349 | \r | |
350 | PackageVersionName = NULL;\r | |
351 | Status = FmpBuf[Index1]->GetImageInfo (\r | |
352 | FmpBuf[Index1],\r | |
353 | &ImageInfoSize,\r | |
354 | FmpImageInfoBuf[Index1],\r | |
355 | &FmpImageInfoDescriptorVerBuf[Index1],\r | |
356 | &FmpImageInfoCountBuf[Index1],\r | |
357 | &DescriptorSizeBuf[Index1],\r | |
358 | &PackageVersion,\r | |
359 | &PackageVersionName\r | |
360 | );\r | |
361 | \r | |
362 | //\r | |
363 | // If FMP GetInformation interface failed, skip this resource\r | |
364 | //\r | |
365 | if (EFI_ERROR(Status)){\r | |
366 | FmpImageInfoCountBuf[Index1] = 0;\r | |
367 | continue;\r | |
368 | }\r | |
369 | \r | |
370 | if (PackageVersionName != NULL) {\r | |
371 | FreePool(PackageVersionName);\r | |
372 | }\r | |
373 | }\r | |
374 | \r | |
375 | //\r | |
376 | // Create new FMP cache repository based on FmpImageInfoBuf\r | |
d1102dba | 377 | //\r |
acd32208 CZ |
378 | for (Index2 = 0; Index2 < NumberOfHandles; Index2++){\r |
379 | TempFmpImageInfo = FmpImageInfoBuf[Index2];\r | |
380 | for (Index3 = 0; Index3 < FmpImageInfoCountBuf[Index2]; Index3++){\r | |
d1102dba | 381 | if ((TempFmpImageInfo->AttributesSupported & IMAGE_ATTRIBUTE_IN_USE) != 0\r |
acd32208 CZ |
382 | && (TempFmpImageInfo->AttributesSetting & IMAGE_ATTRIBUTE_IN_USE) != 0){\r |
383 | //\r | |
d1102dba | 384 | // Always put the first smallest version of Image info into ESRT cache\r |
acd32208 CZ |
385 | //\r |
386 | for(Index1 = 0; Index1 < EntryNumNew; Index1++) {\r | |
387 | if (CompareGuid(&EsrtRepositoryNew[Index1].FwClass, &TempFmpImageInfo->ImageTypeId)) {\r | |
388 | if(EsrtRepositoryNew[Index1].FwVersion > TempFmpImageInfo->Version) {\r | |
389 | SetEsrtEntryFromFmpInfo(&EsrtRepositoryNew[Index1], TempFmpImageInfo, FmpImageInfoDescriptorVerBuf[Index2]);\r | |
390 | }\r | |
391 | break;\r | |
392 | }\r | |
393 | }\r | |
394 | //\r | |
395 | // New ImageTypeId can't be found in EsrtRepositoryNew. Create a new one\r | |
396 | //\r | |
397 | if (Index1 == EntryNumNew){\r | |
398 | SetEsrtEntryFromFmpInfo(&EsrtRepositoryNew[EntryNumNew], TempFmpImageInfo, FmpImageInfoDescriptorVerBuf[Index2]);\r | |
d1102dba | 399 | EntryNumNew++;\r |
acd32208 CZ |
400 | if (EntryNumNew >= PcdGet32(PcdMaxFmpEsrtCacheNum)) {\r |
401 | break;\r | |
402 | }\r | |
403 | }\r | |
404 | }\r | |
405 | \r | |
406 | //\r | |
407 | // Use DescriptorSize to move ImageInfo Pointer to stay compatible with different ImageInfo version\r | |
408 | //\r | |
409 | TempFmpImageInfo = (EFI_FIRMWARE_IMAGE_DESCRIPTOR *)((UINT8 *)TempFmpImageInfo + DescriptorSizeBuf[Index2]);\r | |
410 | }\r | |
411 | }\r | |
412 | \r | |
413 | UPDATE_REPOSITORY:\r | |
414 | \r | |
415 | Status = EfiAcquireLockOrFail (&mPrivate.FmpLock);\r | |
416 | if (EFI_ERROR (Status)) {\r | |
417 | return Status;\r | |
418 | }\r | |
419 | \r | |
420 | Status = gRT->SetVariable(\r | |
421 | EFI_ESRT_FMP_VARIABLE_NAME,\r | |
422 | &gEfiCallerIdGuid,\r | |
423 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
424 | EntryNumNew * sizeof(EFI_SYSTEM_RESOURCE_ENTRY),\r | |
425 | EsrtRepositoryNew\r | |
426 | );\r | |
427 | \r | |
428 | EfiReleaseLock(&mPrivate.FmpLock);\r | |
429 | \r | |
430 | END:\r | |
431 | if (EsrtRepositoryNew != NULL) {\r | |
432 | FreePool(EsrtRepositoryNew);\r | |
433 | }\r | |
434 | \r | |
435 | if (HandleBuffer != NULL) {\r | |
436 | FreePool(HandleBuffer);\r | |
437 | }\r | |
438 | \r | |
439 | if (FmpBuf != NULL) {\r | |
440 | FreePool(FmpBuf);\r | |
441 | }\r | |
442 | \r | |
443 | if (FmpImageInfoCountBuf != NULL) {\r | |
444 | FreePool(FmpImageInfoCountBuf);\r | |
445 | }\r | |
446 | \r | |
447 | if (DescriptorSizeBuf != NULL) {\r | |
448 | FreePool(DescriptorSizeBuf);\r | |
449 | }\r | |
450 | \r | |
451 | if (FmpImageInfoDescriptorVerBuf != NULL) {\r | |
452 | FreePool(FmpImageInfoDescriptorVerBuf);\r | |
453 | }\r | |
454 | \r | |
455 | if (FmpImageInfoBuf != NULL) {\r | |
456 | for (Index1 = 0; Index1 < NumberOfHandles; Index1++){\r | |
457 | if (FmpImageInfoBuf[Index1] != NULL) {\r | |
458 | FreePool(FmpImageInfoBuf[Index1]);\r | |
459 | }\r | |
460 | }\r | |
461 | FreePool(FmpImageInfoBuf);\r | |
462 | }\r | |
463 | \r | |
464 | return Status;\r | |
465 | }\r | |
466 | \r | |
467 | /**\r | |
d1102dba | 468 | This function locks up Esrt repository to be readonly. It should be called\r |
acd32208 CZ |
469 | before gEfiEndOfDxeEventGroupGuid event signaled\r |
470 | \r | |
d1102dba | 471 | @retval EFI_SUCCESS Locks up FMP Non-FMP repository successfully\r |
acd32208 CZ |
472 | \r |
473 | **/\r | |
474 | EFI_STATUS\r | |
475 | EFIAPI\r | |
476 | EsrtDxeLockEsrtRepository(\r | |
477 | VOID\r | |
478 | )\r | |
479 | {\r | |
480 | EFI_STATUS Status;\r | |
481 | EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r | |
482 | //\r | |
483 | // Mark ACPI_GLOBAL_VARIABLE variable to read-only if the Variable Lock protocol exists\r | |
484 | //\r | |
485 | Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);\r | |
486 | if (!EFI_ERROR (Status)) {\r | |
487 | Status = VariableLock->RequestToLock (VariableLock, EFI_ESRT_FMP_VARIABLE_NAME, &gEfiCallerIdGuid);\r | |
87000d77 | 488 | DEBUG((DEBUG_INFO, "EsrtDxe Lock EsrtFmp Variable Status 0x%x", Status));\r |
acd32208 CZ |
489 | \r |
490 | Status = VariableLock->RequestToLock (VariableLock, EFI_ESRT_NONFMP_VARIABLE_NAME, &gEfiCallerIdGuid);\r | |
87000d77 | 491 | DEBUG((DEBUG_INFO, "EsrtDxe Lock EsrtNonFmp Variable Status 0x%x", Status));\r |
acd32208 CZ |
492 | }\r |
493 | \r | |
494 | return Status;\r | |
495 | }\r | |
496 | \r | |
497 | /**\r | |
498 | Notify function for event group EFI_EVENT_GROUP_READY_TO_BOOT. This is used to\r | |
499 | install the Esrt Table into system configuration table\r | |
500 | \r | |
501 | @param[in] Event The Event that is being processed.\r | |
502 | @param[in] Context The Event Context.\r | |
503 | \r | |
504 | **/\r | |
505 | VOID\r | |
506 | EFIAPI\r | |
507 | EsrtReadyToBootEventNotify (\r | |
508 | IN EFI_EVENT Event,\r | |
509 | IN VOID *Context\r | |
510 | )\r | |
d1102dba | 511 | {\r |
acd32208 CZ |
512 | EFI_STATUS Status;\r |
513 | EFI_SYSTEM_RESOURCE_TABLE *EsrtTable;\r | |
514 | EFI_SYSTEM_RESOURCE_ENTRY *FmpEsrtRepository;\r | |
515 | EFI_SYSTEM_RESOURCE_ENTRY *NonFmpEsrtRepository;\r | |
516 | UINTN FmpRepositorySize;\r | |
517 | UINTN NonFmpRepositorySize;\r | |
d1102dba | 518 | \r |
acd32208 CZ |
519 | \r |
520 | FmpEsrtRepository = NULL;\r | |
521 | NonFmpEsrtRepository = NULL;\r | |
522 | FmpRepositorySize = 0;\r | |
523 | NonFmpRepositorySize = 0;\r | |
524 | \r | |
525 | Status = EfiAcquireLockOrFail (&mPrivate.NonFmpLock);\r | |
526 | if (EFI_ERROR (Status)) {\r | |
527 | return;\r | |
528 | }\r | |
529 | \r | |
530 | Status = GetVariable2 (\r | |
531 | EFI_ESRT_NONFMP_VARIABLE_NAME,\r | |
532 | &gEfiCallerIdGuid,\r | |
533 | (VOID **) &NonFmpEsrtRepository,\r | |
534 | &NonFmpRepositorySize\r | |
535 | );\r | |
536 | \r | |
537 | if (EFI_ERROR(Status)) {\r | |
538 | NonFmpRepositorySize = 0;\r | |
539 | }\r | |
540 | \r | |
541 | if (NonFmpRepositorySize % sizeof(EFI_SYSTEM_RESOURCE_ENTRY) != 0) {\r | |
87000d77 | 542 | DEBUG((DEBUG_ERROR, "NonFmp Repository Corrupt. Need to rebuild NonFmp Repository.\n"));\r |
acd32208 CZ |
543 | NonFmpRepositorySize = 0;\r |
544 | }\r | |
545 | \r | |
546 | EfiReleaseLock(&mPrivate.NonFmpLock);\r | |
547 | \r | |
548 | Status = EfiAcquireLockOrFail (&mPrivate.FmpLock);\r | |
549 | Status = GetVariable2 (\r | |
550 | EFI_ESRT_FMP_VARIABLE_NAME,\r | |
551 | &gEfiCallerIdGuid,\r | |
552 | (VOID **) &FmpEsrtRepository,\r | |
553 | &FmpRepositorySize\r | |
554 | );\r | |
555 | \r | |
556 | if (EFI_ERROR(Status)) {\r | |
557 | FmpRepositorySize = 0;\r | |
558 | }\r | |
559 | \r | |
560 | if (FmpRepositorySize % sizeof(EFI_SYSTEM_RESOURCE_ENTRY) != 0) {\r | |
87000d77 | 561 | DEBUG((DEBUG_ERROR, "Fmp Repository Corrupt. Need to rebuild Fmp Repository.\n"));\r |
acd32208 CZ |
562 | FmpRepositorySize = 0;\r |
563 | }\r | |
564 | \r | |
565 | EfiReleaseLock(&mPrivate.FmpLock);\r | |
566 | \r | |
567 | //\r | |
568 | // Skip ESRT table publish if no ESRT entry exists\r | |
569 | //\r | |
570 | if (NonFmpRepositorySize + FmpRepositorySize == 0) {\r | |
571 | goto EXIT;\r | |
572 | }\r | |
573 | \r | |
574 | EsrtTable = AllocatePool(sizeof(EFI_SYSTEM_RESOURCE_TABLE) + NonFmpRepositorySize + FmpRepositorySize);\r | |
575 | if (EsrtTable == NULL) {\r | |
87000d77 | 576 | DEBUG ((DEBUG_ERROR, "Esrt table memory allocation failure\n"));\r |
acd32208 CZ |
577 | goto EXIT;\r |
578 | }\r | |
579 | \r | |
d1102dba LG |
580 | EsrtTable->FwResourceVersion = EFI_SYSTEM_RESOURCE_TABLE_FIRMWARE_RESOURCE_VERSION;\r |
581 | EsrtTable->FwResourceCount = (UINT32)((NonFmpRepositorySize + FmpRepositorySize) / sizeof(EFI_SYSTEM_RESOURCE_ENTRY));\r | |
acd32208 CZ |
582 | EsrtTable->FwResourceCountMax = PcdGet32(PcdMaxNonFmpEsrtCacheNum) + PcdGet32(PcdMaxFmpEsrtCacheNum);\r |
583 | \r | |
a3ac2587 CZ |
584 | if (NonFmpRepositorySize != 0 && NonFmpEsrtRepository != NULL) {\r |
585 | CopyMem(EsrtTable + 1, NonFmpEsrtRepository, NonFmpRepositorySize);\r | |
586 | }\r | |
587 | \r | |
588 | if (FmpRepositorySize != 0 && FmpEsrtRepository != NULL) {\r | |
589 | CopyMem((UINT8 *)(EsrtTable + 1) + NonFmpRepositorySize, FmpEsrtRepository, FmpRepositorySize);\r | |
590 | }\r | |
acd32208 CZ |
591 | \r |
592 | //\r | |
593 | // Publish Esrt to system config table\r | |
594 | //\r | |
595 | Status = gBS->InstallConfigurationTable (&gEfiSystemResourceTableGuid, EsrtTable);\r | |
596 | \r | |
597 | //\r | |
598 | // Only one successful install\r | |
599 | //\r | |
600 | gBS->CloseEvent(Event);\r | |
601 | \r | |
602 | EXIT:\r | |
603 | \r | |
604 | if (FmpEsrtRepository != NULL) {\r | |
605 | FreePool(FmpEsrtRepository);\r | |
606 | }\r | |
607 | \r | |
608 | if (NonFmpEsrtRepository != NULL) {\r | |
609 | FreePool(NonFmpEsrtRepository);\r | |
610 | }\r | |
611 | }\r | |
612 | \r | |
a3ac2587 | 613 | /**\r |
d1102dba | 614 | The module Entry Point of the Esrt DXE driver that manages cached ESRT repository\r |
a3ac2587 | 615 | & publishes ESRT table\r |
acd32208 | 616 | \r |
a3ac2587 CZ |
617 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r |
618 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
619 | \r | |
620 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
621 | @retval Other Some error occurs when executing this entry point.\r | |
622 | \r | |
623 | **/\r | |
acd32208 CZ |
624 | EFI_STATUS\r |
625 | EFIAPI\r | |
626 | EsrtDxeEntryPoint (\r | |
627 | IN EFI_HANDLE ImageHandle,\r | |
628 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
629 | )\r | |
d1102dba | 630 | {\r |
acd32208 CZ |
631 | EFI_STATUS Status;\r |
632 | \r | |
633 | EfiInitializeLock (&mPrivate.FmpLock, TPL_CALLBACK);\r | |
634 | EfiInitializeLock (&mPrivate.NonFmpLock, TPL_CALLBACK);\r | |
635 | \r | |
636 | //\r | |
637 | // Install Esrt management Protocol\r | |
638 | //\r | |
639 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
640 | &mPrivate.Handle,\r | |
641 | &gEsrtManagementProtocolGuid,\r | |
642 | &mEsrtManagementProtocolTemplate,\r | |
643 | NULL\r | |
644 | );\r | |
645 | ASSERT_EFI_ERROR (Status);\r | |
646 | \r | |
647 | //\r | |
648 | // Register notify function to install Esrt Table on ReadyToBoot Event.\r | |
649 | //\r | |
650 | Status = gBS->CreateEventEx (\r | |
651 | EVT_NOTIFY_SIGNAL,\r | |
652 | TPL_CALLBACK,\r | |
653 | EsrtReadyToBootEventNotify,\r | |
654 | NULL,\r | |
655 | &gEfiEventReadyToBootGuid,\r | |
656 | &mPrivate.Event\r | |
657 | );\r | |
658 | ASSERT_EFI_ERROR (Status);\r | |
659 | \r | |
660 | return EFI_SUCCESS;\r | |
661 | }\r |