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162ed594 | 1 | /** @file\r |
28a00297 | 2 | Firmware File System driver that produce Firmware Volume protocol.\r |
022c6d45 | 3 | Layers on top of Firmware Block protocol to produce a file abstraction\r |
28a00297 | 4 | of FV based files.\r |
23c98c94 | 5 | \r |
6 | Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r | |
7 | All rights reserved. This program and the accompanying materials\r | |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
28a00297 | 14 | \r |
15 | **/\r | |
16 | \r | |
17 | #include <DxeMain.h>\r | |
18 | \r | |
19 | #define KEYSIZE sizeof (UINTN)\r | |
20 | \r | |
21 | //\r | |
22 | // Protocol notify related globals\r | |
23 | //\r | |
24 | VOID *gEfiFwVolBlockNotifyReg;\r | |
25 | EFI_EVENT gEfiFwVolBlockEvent;\r | |
26 | \r | |
27 | FV_DEVICE mFvDevice = {\r | |
0c2b5da8 | 28 | FV2_DEVICE_SIGNATURE,\r |
28a00297 | 29 | NULL,\r |
30 | NULL,\r | |
31 | {\r | |
32 | FvGetVolumeAttributes,\r | |
33 | FvSetVolumeAttributes,\r | |
34 | FvReadFile,\r | |
35 | FvReadFileSection,\r | |
36 | FvWriteFile,\r | |
37 | FvGetNextFile,\r | |
0c2b5da8 | 38 | KEYSIZE,\r |
39 | NULL,\r | |
40 | FvGetVolumeInfo,\r | |
41 | FvSetVolumeInfo\r | |
28a00297 | 42 | },\r |
43 | NULL,\r | |
44 | NULL,\r | |
45 | NULL,\r | |
46 | NULL,\r | |
47 | { NULL, NULL },\r | |
48 | 0\r | |
49 | };\r | |
50 | \r | |
51 | \r | |
52 | //\r | |
53 | // FFS helper functions\r | |
54 | //\r | |
162ed594 | 55 | /**\r |
28a00297 | 56 | given the supplied FW_VOL_BLOCK_PROTOCOL, allocate a buffer for output and\r |
57 | copy the volume header into it.\r | |
58 | \r | |
022c6d45 | 59 | @param Fvb The FW_VOL_BLOCK_PROTOCOL instance from which to\r |
60 | read the volume header\r | |
61 | @param FwVolHeader Pointer to pointer to allocated buffer in which\r | |
62 | the volume header is returned.\r | |
28a00297 | 63 | \r |
022c6d45 | 64 | @retval EFI_OUT_OF_RESOURCES No enough buffer could be allocated.\r |
65 | @retval EFI_SUCCESS Successfully read volume header to the allocated\r | |
162ed594 | 66 | buffer.\r |
28a00297 | 67 | \r |
162ed594 | 68 | **/\r |
69 | EFI_STATUS\r | |
70 | GetFwVolHeader (\r | |
71 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb,\r | |
72 | OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader\r | |
73 | )\r | |
28a00297 | 74 | {\r |
75 | EFI_STATUS Status;\r | |
76 | EFI_FIRMWARE_VOLUME_HEADER TempFvh;\r | |
77 | UINTN FvhLength;\r | |
78 | UINT8 *Buffer;\r | |
79 | \r | |
80 | \r | |
81 | //\r | |
82 | //Determine the real length of FV header\r | |
83 | //\r | |
84 | FvhLength = sizeof (EFI_FIRMWARE_VOLUME_HEADER);\r | |
85 | Status = Fvb->Read (Fvb, 0, 0, &FvhLength, (UINT8 *)&TempFvh);\r | |
86 | \r | |
87 | //\r | |
88 | // Allocate a buffer for the caller\r | |
89 | //\r | |
90 | *FwVolHeader = CoreAllocateBootServicesPool (TempFvh.HeaderLength);\r | |
91 | if (*FwVolHeader == NULL) {\r | |
92 | return EFI_OUT_OF_RESOURCES;\r | |
93 | }\r | |
94 | \r | |
95 | //\r | |
96 | // Copy the standard header into the buffer\r | |
97 | //\r | |
98 | CopyMem (*FwVolHeader, &TempFvh, sizeof (EFI_FIRMWARE_VOLUME_HEADER));\r | |
99 | \r | |
100 | //\r | |
101 | // Read the rest of the header\r | |
102 | //\r | |
103 | FvhLength = TempFvh.HeaderLength - sizeof (EFI_FIRMWARE_VOLUME_HEADER);\r | |
104 | Buffer = (UINT8 *)*FwVolHeader + sizeof (EFI_FIRMWARE_VOLUME_HEADER);\r | |
105 | Status = Fvb->Read (Fvb, 0, sizeof (EFI_FIRMWARE_VOLUME_HEADER), &FvhLength, Buffer);\r | |
106 | if (EFI_ERROR (Status)) {\r | |
107 | //\r | |
108 | // Read failed so free buffer\r | |
109 | //\r | |
110 | CoreFreePool (*FwVolHeader);\r | |
111 | }\r | |
022c6d45 | 112 | \r |
28a00297 | 113 | return Status;\r |
114 | }\r | |
115 | \r | |
116 | \r | |
28a00297 | 117 | \r |
162ed594 | 118 | /**\r |
28a00297 | 119 | Free FvDevice resource when error happens\r |
120 | \r | |
022c6d45 | 121 | @param FvDevice pointer to the FvDevice to be freed.\r |
28a00297 | 122 | \r |
162ed594 | 123 | **/\r |
162ed594 | 124 | VOID\r |
125 | FreeFvDeviceResource (\r | |
126 | IN FV_DEVICE *FvDevice\r | |
127 | )\r | |
28a00297 | 128 | {\r |
129 | FFS_FILE_LIST_ENTRY *FfsFileEntry;\r | |
130 | LIST_ENTRY *NextEntry;\r | |
131 | \r | |
132 | //\r | |
133 | // Free File List Entry\r | |
134 | //\r | |
135 | FfsFileEntry = (FFS_FILE_LIST_ENTRY *)FvDevice->FfsFileListHeader.ForwardLink;\r | |
136 | while (&FfsFileEntry->Link != &FvDevice->FfsFileListHeader) {\r | |
137 | NextEntry = (&FfsFileEntry->Link)->ForwardLink;\r | |
022c6d45 | 138 | \r |
28a00297 | 139 | if (FfsFileEntry->StreamHandle != 0) {\r |
140 | //\r | |
141 | // Close stream and free resources from SEP\r | |
142 | //\r | |
797a9d67 | 143 | CloseSectionStream (FfsFileEntry->StreamHandle);\r |
28a00297 | 144 | }\r |
145 | \r | |
146 | CoreFreePool (FfsFileEntry);\r | |
147 | \r | |
e94a9ff7 | 148 | FfsFileEntry = (FFS_FILE_LIST_ENTRY *) NextEntry;\r |
28a00297 | 149 | }\r |
150 | \r | |
151 | \r | |
152 | //\r | |
153 | // Free the cache\r | |
154 | //\r | |
155 | CoreFreePool (FvDevice->CachedFv);\r | |
156 | \r | |
157 | //\r | |
158 | // Free Volume Header\r | |
159 | //\r | |
160 | CoreFreePool (FvDevice->FwVolHeader);\r | |
161 | \r | |
162 | return;\r | |
163 | }\r | |
164 | \r | |
165 | \r | |
28a00297 | 166 | \r |
162ed594 | 167 | /**\r |
e94a9ff7 | 168 | Check if an FV is consistent and allocate cache for it.\r |
28a00297 | 169 | \r |
022c6d45 | 170 | @param FvDevice A pointer to the FvDevice to be checked.\r |
28a00297 | 171 | \r |
022c6d45 | 172 | @retval EFI_OUT_OF_RESOURCES No enough buffer could be allocated.\r |
173 | @retval EFI_SUCCESS FV is consistent and cache is allocated.\r | |
162ed594 | 174 | @retval EFI_VOLUME_CORRUPTED File system is corrupted.\r |
28a00297 | 175 | \r |
162ed594 | 176 | **/\r |
177 | EFI_STATUS\r | |
178 | FvCheck (\r | |
179 | IN OUT FV_DEVICE *FvDevice\r | |
180 | )\r | |
28a00297 | 181 | {\r |
182 | EFI_STATUS Status;\r | |
183 | EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;\r | |
184 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
185 | EFI_FVB_ATTRIBUTES FvbAttributes;\r | |
186 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r | |
187 | FFS_FILE_LIST_ENTRY *FfsFileEntry;\r | |
188 | EFI_FFS_FILE_HEADER *FfsHeader;\r | |
189 | UINT8 *CacheLocation;\r | |
190 | UINTN LbaOffset;\r | |
191 | UINTN Index;\r | |
192 | EFI_LBA LbaIndex;\r | |
193 | UINTN Size;\r | |
194 | UINTN FileLength;\r | |
195 | EFI_FFS_FILE_STATE FileState;\r | |
196 | UINT8 *TopFvAddress;\r | |
197 | UINTN TestLength;\r | |
198 | \r | |
199 | \r | |
200 | Fvb = FvDevice->Fvb;\r | |
201 | FwVolHeader = FvDevice->FwVolHeader;\r | |
022c6d45 | 202 | \r |
28a00297 | 203 | Status = Fvb->GetAttributes (Fvb, &FvbAttributes);\r |
204 | if (EFI_ERROR (Status)) {\r | |
205 | return Status;\r | |
206 | }\r | |
207 | \r | |
208 | //\r | |
209 | // Size is the size of the FV minus the head. We have already allocated\r | |
210 | // the header to check to make sure the volume is valid\r | |
211 | //\r | |
212 | Size = (UINTN)(FwVolHeader->FvLength - FwVolHeader->HeaderLength);\r | |
213 | FvDevice->CachedFv = CoreAllocateBootServicesPool (Size);\r | |
214 | \r | |
215 | if (FvDevice->CachedFv == NULL) {\r | |
216 | return EFI_OUT_OF_RESOURCES;\r | |
217 | }\r | |
218 | \r | |
219 | //\r | |
220 | // Remember a pointer to the end fo the CachedFv\r | |
221 | //\r | |
222 | FvDevice->EndOfCachedFv = FvDevice->CachedFv + Size;\r | |
223 | \r | |
224 | //\r | |
225 | // Copy FV minus header into memory using the block map we have all ready\r | |
226 | // read into memory.\r | |
227 | //\r | |
228 | BlockMap = FwVolHeader->BlockMap;\r | |
229 | CacheLocation = FvDevice->CachedFv;\r | |
230 | LbaIndex = 0;\r | |
231 | LbaOffset = FwVolHeader->HeaderLength;\r | |
232 | while ((BlockMap->NumBlocks != 0) || (BlockMap->Length != 0)) {\r | |
022c6d45 | 233 | \r |
28a00297 | 234 | for (Index = 0; Index < BlockMap->NumBlocks; Index ++) {\r |
235 | \r | |
236 | Size = BlockMap->Length;\r | |
237 | if (Index == 0) {\r | |
238 | //\r | |
239 | // Cache does not include FV Header\r | |
240 | //\r | |
241 | Size -= LbaOffset;\r | |
242 | }\r | |
243 | Status = Fvb->Read (Fvb,\r | |
e94a9ff7 | 244 | LbaIndex,\r |
245 | LbaOffset,\r | |
246 | &Size,\r | |
247 | CacheLocation\r | |
248 | );\r | |
28a00297 | 249 | //\r |
250 | // Not check EFI_BAD_BUFFER_SIZE, for Size = BlockMap->Length\r | |
251 | //\r | |
252 | if (EFI_ERROR (Status)) {\r | |
253 | goto Done;\r | |
254 | }\r | |
022c6d45 | 255 | \r |
28a00297 | 256 | //\r |
257 | // After we skip Fv Header always read from start of block\r | |
258 | //\r | |
259 | LbaOffset = 0;\r | |
260 | \r | |
261 | LbaIndex++;\r | |
262 | CacheLocation += Size;\r | |
263 | }\r | |
264 | BlockMap++;\r | |
265 | }\r | |
266 | \r | |
267 | //\r | |
268 | // Scan to check the free space & File list\r | |
269 | //\r | |
71f68914 | 270 | if ((FvbAttributes & EFI_FVB2_ERASE_POLARITY) != 0) {\r |
28a00297 | 271 | FvDevice->ErasePolarity = 1;\r |
272 | } else {\r | |
273 | FvDevice->ErasePolarity = 0;\r | |
022c6d45 | 274 | }\r |
28a00297 | 275 | \r |
276 | \r | |
277 | //\r | |
278 | // go through the whole FV cache, check the consistence of the FV.\r | |
279 | // Make a linked list off all the Ffs file headers\r | |
280 | //\r | |
281 | Status = EFI_SUCCESS;\r | |
282 | InitializeListHead (&FvDevice->FfsFileListHeader);\r | |
283 | \r | |
284 | //\r | |
285 | // Build FFS list\r | |
286 | //\r | |
e94a9ff7 | 287 | FfsHeader = (EFI_FFS_FILE_HEADER *) FvDevice->CachedFv;\r |
28a00297 | 288 | TopFvAddress = FvDevice->EndOfCachedFv;\r |
e94a9ff7 | 289 | while ((UINT8 *) FfsHeader < TopFvAddress) {\r |
28a00297 | 290 | \r |
e94a9ff7 | 291 | TestLength = TopFvAddress - ((UINT8 *) FfsHeader);\r |
28a00297 | 292 | if (TestLength > sizeof (EFI_FFS_FILE_HEADER)) {\r |
293 | TestLength = sizeof (EFI_FFS_FILE_HEADER);\r | |
294 | }\r | |
295 | \r | |
296 | if (IsBufferErased (FvDevice->ErasePolarity, FfsHeader, TestLength)) {\r | |
297 | //\r | |
298 | // We have found the free space so we are done!\r | |
299 | //\r | |
300 | goto Done;\r | |
301 | }\r | |
302 | \r | |
303 | if (!IsValidFfsHeader (FvDevice->ErasePolarity, FfsHeader, &FileState)) {\r | |
022c6d45 | 304 | if ((FileState == EFI_FILE_HEADER_INVALID) ||\r |
28a00297 | 305 | (FileState == EFI_FILE_HEADER_CONSTRUCTION)) {\r |
306 | FfsHeader++;\r | |
28a00297 | 307 | continue;\r |
28a00297 | 308 | } else {\r |
309 | //\r | |
310 | // File system is corrputed\r | |
311 | //\r | |
312 | Status = EFI_VOLUME_CORRUPTED;\r | |
313 | goto Done;\r | |
314 | }\r | |
315 | }\r | |
316 | \r | |
317 | if (!IsValidFfsFile (FvDevice->ErasePolarity, FfsHeader)) {\r | |
318 | //\r | |
319 | // File system is corrupted\r | |
320 | //\r | |
321 | Status = EFI_VOLUME_CORRUPTED;\r | |
322 | goto Done;\r | |
323 | }\r | |
324 | \r | |
325 | //\r | |
326 | // Size[3] is a three byte array, read 4 bytes and throw one away\r | |
327 | //\r | |
328 | FileLength = *(UINT32 *)&FfsHeader->Size[0] & 0x00FFFFFF;\r | |
329 | \r | |
330 | FileState = GetFileState (FvDevice->ErasePolarity, FfsHeader);\r | |
022c6d45 | 331 | \r |
28a00297 | 332 | //\r |
333 | // check for non-deleted file\r | |
334 | //\r | |
335 | if (FileState != EFI_FILE_DELETED) {\r | |
336 | //\r | |
337 | // Create a FFS list entry for each non-deleted file\r | |
338 | //\r | |
339 | FfsFileEntry = CoreAllocateZeroBootServicesPool (sizeof (FFS_FILE_LIST_ENTRY));\r | |
340 | if (FfsFileEntry == NULL) {\r | |
341 | Status = EFI_OUT_OF_RESOURCES;\r | |
342 | goto Done;\r | |
343 | }\r | |
022c6d45 | 344 | \r |
28a00297 | 345 | FfsFileEntry->FfsHeader = FfsHeader;\r |
346 | InsertTailList (&FvDevice->FfsFileListHeader, &FfsFileEntry->Link);\r | |
347 | }\r | |
348 | \r | |
349 | FfsHeader = (EFI_FFS_FILE_HEADER *)(((UINT8 *)FfsHeader) + FileLength);\r | |
022c6d45 | 350 | \r |
28a00297 | 351 | //\r |
352 | // Adjust pointer to the next 8-byte aligned boundry.\r | |
353 | //\r | |
354 | FfsHeader = (EFI_FFS_FILE_HEADER *)(((UINTN)FfsHeader + 7) & ~0x07);\r | |
022c6d45 | 355 | \r |
28a00297 | 356 | }\r |
357 | \r | |
358 | Done:\r | |
359 | if (EFI_ERROR (Status)) {\r | |
360 | FreeFvDeviceResource (FvDevice);\r | |
361 | }\r | |
362 | \r | |
363 | return Status;\r | |
364 | }\r | |
365 | \r | |
366 | \r | |
162ed594 | 367 | \r |
368 | /**\r | |
369 | This notification function is invoked when an instance of the\r | |
370 | EFI_FW_VOLUME_BLOCK_PROTOCOL is produced. It layers an instance of the\r | |
371 | EFI_FIRMWARE_VOLUME2_PROTOCOL on the same handle. This is the function where\r | |
372 | the actual initialization of the EFI_FIRMWARE_VOLUME2_PROTOCOL is done.\r | |
373 | \r | |
022c6d45 | 374 | @param Event The event that occured\r |
162ed594 | 375 | @param Context For EFI compatiblity. Not used.\r |
376 | \r | |
377 | **/\r | |
28a00297 | 378 | VOID\r |
379 | EFIAPI\r | |
380 | NotifyFwVolBlock (\r | |
381 | IN EFI_EVENT Event,\r | |
382 | IN VOID *Context\r | |
383 | )\r | |
28a00297 | 384 | {\r |
385 | EFI_HANDLE Handle;\r | |
386 | EFI_STATUS Status;\r | |
387 | UINTN BufferSize;\r | |
388 | EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;\r | |
0c2b5da8 | 389 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r |
28a00297 | 390 | FV_DEVICE *FvDevice;\r |
391 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
392 | //\r | |
393 | // Examine all new handles\r | |
394 | //\r | |
395 | for (;;) {\r | |
396 | //\r | |
397 | // Get the next handle\r | |
398 | //\r | |
399 | BufferSize = sizeof (Handle);\r | |
400 | Status = CoreLocateHandle (\r | |
401 | ByRegisterNotify,\r | |
402 | NULL,\r | |
403 | gEfiFwVolBlockNotifyReg,\r | |
404 | &BufferSize,\r | |
405 | &Handle\r | |
406 | );\r | |
407 | \r | |
408 | //\r | |
409 | // If not found, we're done\r | |
410 | //\r | |
411 | if (EFI_NOT_FOUND == Status) {\r | |
412 | break;\r | |
413 | }\r | |
414 | \r | |
415 | if (EFI_ERROR (Status)) {\r | |
416 | continue;\r | |
417 | }\r | |
022c6d45 | 418 | \r |
28a00297 | 419 | //\r |
420 | // Get the FirmwareVolumeBlock protocol on that handle\r | |
421 | //\r | |
022c6d45 | 422 | Status = CoreHandleProtocol (Handle, &gEfiFirmwareVolumeBlockProtocolGuid, (VOID **)&Fvb);\r |
28a00297 | 423 | ASSERT_EFI_ERROR (Status);\r |
022c6d45 | 424 | \r |
28a00297 | 425 | \r |
426 | //\r | |
427 | // Make sure the Fv Header is O.K.\r | |
428 | //\r | |
429 | Status = GetFwVolHeader (Fvb, &FwVolHeader);\r | |
430 | if (EFI_ERROR (Status)) {\r | |
431 | return;\r | |
432 | }\r | |
433 | \r | |
434 | if (!VerifyFvHeaderChecksum (FwVolHeader)) {\r | |
435 | CoreFreePool (FwVolHeader);\r | |
436 | continue;\r | |
437 | }\r | |
438 | \r | |
439 | \r | |
440 | //\r | |
441 | // Check to see that the file system is indeed formatted in a way we can\r | |
442 | // understand it...\r | |
443 | //\r | |
9767823f | 444 | if (!CompareGuid (&FwVolHeader->FileSystemGuid, &gEfiFirmwareFileSystem2Guid)) {\r |
28a00297 | 445 | continue;\r |
446 | }\r | |
447 | \r | |
448 | //\r | |
449 | // Check if there is an FV protocol already installed in that handle\r | |
450 | //\r | |
0c2b5da8 | 451 | Status = CoreHandleProtocol (Handle, &gEfiFirmwareVolume2ProtocolGuid, (VOID **)&Fv);\r |
28a00297 | 452 | if (!EFI_ERROR (Status)) {\r |
453 | //\r | |
454 | // Update Fv to use a new Fvb\r | |
455 | //\r | |
456 | FvDevice = _CR (Fv, FV_DEVICE, Fv);\r | |
0c2b5da8 | 457 | if (FvDevice->Signature == FV2_DEVICE_SIGNATURE) {\r |
28a00297 | 458 | //\r |
459 | // Only write into our device structure if it's our device structure\r | |
460 | //\r | |
461 | FvDevice->Fvb = Fvb;\r | |
462 | }\r | |
463 | \r | |
464 | } else {\r | |
465 | //\r | |
466 | // No FwVol protocol on the handle so create a new one\r | |
467 | //\r | |
468 | FvDevice = CoreAllocateCopyPool (sizeof (FV_DEVICE), &mFvDevice);\r | |
469 | if (FvDevice == NULL) {\r | |
470 | return;\r | |
471 | }\r | |
022c6d45 | 472 | \r |
e94a9ff7 | 473 | FvDevice->Fvb = Fvb;\r |
474 | FvDevice->Handle = Handle;\r | |
475 | FvDevice->FwVolHeader = FwVolHeader;\r | |
28a00297 | 476 | FvDevice->Fv.ParentHandle = Fvb->ParentHandle;\r |
022c6d45 | 477 | \r |
28a00297 | 478 | //\r |
479 | // Install an New FV protocol on the existing handle\r | |
480 | //\r | |
481 | Status = CoreInstallProtocolInterface (\r | |
482 | &Handle,\r | |
0c2b5da8 | 483 | &gEfiFirmwareVolume2ProtocolGuid,\r |
28a00297 | 484 | EFI_NATIVE_INTERFACE,\r |
485 | &FvDevice->Fv\r | |
486 | );\r | |
487 | ASSERT_EFI_ERROR (Status);\r | |
488 | }\r | |
489 | }\r | |
022c6d45 | 490 | \r |
28a00297 | 491 | return;\r |
492 | }\r | |
493 | \r | |
494 | \r | |
162ed594 | 495 | \r |
496 | /**\r | |
497 | This routine is the driver initialization entry point. It initializes the\r | |
498 | libraries, and registers two notification functions. These notification\r | |
499 | functions are responsible for building the FV stack dynamically.\r | |
500 | \r | |
022c6d45 | 501 | @param ImageHandle The image handle.\r |
502 | @param SystemTable The system table.\r | |
162ed594 | 503 | \r |
504 | @retval EFI_SUCCESS Function successfully returned.\r | |
505 | \r | |
506 | **/\r | |
28a00297 | 507 | EFI_STATUS\r |
508 | EFIAPI\r | |
509 | FwVolDriverInit (\r | |
510 | IN EFI_HANDLE ImageHandle,\r | |
511 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
512 | )\r | |
28a00297 | 513 | {\r |
514 | gEfiFwVolBlockEvent = CoreCreateProtocolNotifyEvent (\r | |
515 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
516 | TPL_CALLBACK,\r | |
517 | NotifyFwVolBlock,\r | |
518 | NULL,\r | |
519 | &gEfiFwVolBlockNotifyReg,\r | |
520 | TRUE\r | |
521 | );\r | |
522 | return EFI_SUCCESS;\r | |
523 | }\r | |
524 | \r | |
162ed594 | 525 | \r |