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