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b2824a8e | 1 | /** @file\r |
2 | Functions in this file will program the image into flash area.\r | |
3 | \r | |
4 | Copyright (c) 2002 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions\r | |
8 | of the BSD License which accompanies this distribution. The\r | |
9 | 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 | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "UpdateDriver.h"\r | |
18 | \r | |
19 | /**\r | |
20 | Write a block size data into flash.\r | |
21 | \r | |
22 | @param FvbProtocol Pointer to FVB protocol.\r | |
23 | @param Lba Logic block index to be updated.\r | |
24 | @param BlockSize Block size\r | |
25 | @param Buffer Buffer data to be written.\r | |
26 | \r | |
27 | @retval EFI_SUCCESS Write data successfully.\r | |
28 | @retval other errors Write data failed.\r | |
29 | \r | |
30 | **/\r | |
31 | EFI_STATUS\r | |
32 | UpdateOneBlock (\r | |
33 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
34 | IN EFI_LBA Lba,\r | |
35 | IN UINTN BlockSize,\r | |
36 | IN UINT8 *Buffer\r | |
37 | )\r | |
38 | {\r | |
39 | EFI_STATUS Status;\r | |
40 | UINTN Size;\r | |
41 | \r | |
42 | //\r | |
43 | // First erase the block\r | |
44 | //\r | |
45 | Status = FvbProtocol->EraseBlocks (\r | |
46 | FvbProtocol,\r | |
47 | Lba, // Lba\r | |
48 | 1, // NumOfBlocks\r | |
49 | EFI_LBA_LIST_TERMINATOR\r | |
50 | );\r | |
51 | if (EFI_ERROR (Status)) {\r | |
52 | return Status;\r | |
53 | }\r | |
54 | \r | |
55 | //\r | |
56 | // Write the block\r | |
57 | //\r | |
58 | Size = BlockSize;\r | |
59 | Status = FvbProtocol->Write (\r | |
60 | FvbProtocol,\r | |
61 | Lba, // Lba\r | |
62 | 0, // Offset\r | |
63 | &Size, // Size\r | |
64 | Buffer // Buffer\r | |
65 | );\r | |
66 | if ((EFI_ERROR (Status)) || (Size != BlockSize)) {\r | |
67 | return Status;\r | |
68 | }\r | |
69 | \r | |
70 | return EFI_SUCCESS;\r | |
71 | }\r | |
72 | \r | |
73 | /**\r | |
74 | Write buffer data in a flash block.\r | |
75 | \r | |
76 | @param FvbProtocol Pointer to FVB protocol.\r | |
77 | @param Lba Logic block index to be updated.\r | |
78 | @param Offset The offset within the block.\r | |
79 | @param Length Size of buffer to be updated.\r | |
80 | @param BlockSize Block size.\r | |
81 | @param Buffer Buffer data to be updated.\r | |
82 | \r | |
83 | @retval EFI_SUCCESS Write data successfully.\r | |
84 | @retval other errors Write data failed.\r | |
85 | \r | |
86 | **/\r | |
87 | EFI_STATUS\r | |
88 | UpdateBufferInOneBlock (\r | |
89 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
90 | IN EFI_LBA Lba,\r | |
91 | IN UINTN Offset,\r | |
92 | IN UINTN Length,\r | |
93 | IN UINTN BlockSize,\r | |
94 | IN UINT8 *Buffer\r | |
95 | )\r | |
96 | {\r | |
97 | EFI_STATUS Status;\r | |
98 | UINTN Size;\r | |
99 | UINT8 *ReservedBuffer;\r | |
100 | \r | |
101 | //\r | |
102 | // If we are going to update a whole block\r | |
103 | //\r | |
104 | if ((Offset == 0) && (Length == BlockSize)) {\r | |
105 | Status = UpdateOneBlock (\r | |
106 | FvbProtocol,\r | |
107 | Lba,\r | |
108 | BlockSize,\r | |
109 | Buffer\r | |
110 | );\r | |
111 | return Status;\r | |
112 | }\r | |
113 | \r | |
114 | //\r | |
115 | // If it is not a full block update, we need to coalesce data in\r | |
116 | // the block that is not going to be updated and new data together.\r | |
117 | //\r | |
118 | \r | |
119 | //\r | |
120 | // Allocate a reserved buffer to make up the final buffer for update\r | |
121 | //\r | |
122 | ReservedBuffer = NULL;\r | |
123 | ReservedBuffer = AllocatePool (BlockSize);\r | |
124 | if (ReservedBuffer == NULL) {\r | |
125 | return EFI_OUT_OF_RESOURCES;\r | |
126 | }\r | |
127 | //\r | |
128 | // First get the original content of the block\r | |
129 | //\r | |
130 | Size = BlockSize;\r | |
131 | Status = FvbProtocol->Read (\r | |
132 | FvbProtocol,\r | |
133 | Lba,\r | |
134 | 0,\r | |
135 | &Size,\r | |
136 | ReservedBuffer\r | |
137 | );\r | |
138 | if ((EFI_ERROR (Status)) || (Size != BlockSize)) {\r | |
139 | FreePool (ReservedBuffer);\r | |
140 | return Status;\r | |
141 | }\r | |
142 | \r | |
143 | //\r | |
144 | // Overwrite the reserved buffer with new content\r | |
145 | //\r | |
146 | CopyMem (ReservedBuffer + Offset, Buffer, Length);\r | |
147 | \r | |
148 | Status = UpdateOneBlock (\r | |
149 | FvbProtocol,\r | |
150 | Lba,\r | |
151 | BlockSize,\r | |
152 | ReservedBuffer\r | |
153 | );\r | |
154 | \r | |
155 | FreePool (ReservedBuffer);\r | |
156 | \r | |
157 | return Status;\r | |
158 | }\r | |
159 | \r | |
160 | /**\r | |
161 | Get the last write log, and check the status of last write.\r | |
162 | If not complete, restart will be taken.\r | |
163 | \r | |
164 | @param FvbHandle Handle of FVB protocol.\r | |
165 | @param FtwProtocol FTW protocol instance.\r | |
166 | @param ConfigData Config data on updating driver.\r | |
167 | @param PrivateDataSize bytes from the private data\r | |
168 | stored for this write.\r | |
169 | @param PrivateData A pointer to a buffer. The function will copy.\r | |
170 | @param Lba The logical block address of the last write.\r | |
171 | @param Offset The offset within the block of the last write.\r | |
172 | @param Length The length of the last write.\r | |
173 | @param Pending A Boolean value with TRUE indicating\r | |
174 | that the write was completed.\r | |
175 | \r | |
176 | @retval EFI_OUT_OF_RESOURCES No enough memory is allocated.\r | |
177 | @retval EFI_ABORTED The FTW work space is damaged.\r | |
178 | @retval EFI_NOT_FOUND The last write is not done by this driver.\r | |
179 | @retval EFI_SUCCESS Last write log is got.\r | |
180 | \r | |
181 | **/\r | |
182 | EFI_STATUS\r | |
183 | RetrieveLastWrite (\r | |
184 | IN EFI_HANDLE FvbHandle,\r | |
185 | IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol,\r | |
186 | IN UPDATE_CONFIG_DATA *ConfigData,\r | |
187 | IN UINTN PrivateDataSize,\r | |
188 | IN OUT UPDATE_PRIVATE_DATA *PrivateData,\r | |
189 | IN OUT EFI_LBA *Lba,\r | |
190 | IN OUT UINTN *Offset,\r | |
191 | IN OUT UINTN *Length,\r | |
192 | IN OUT BOOLEAN *Pending\r | |
193 | )\r | |
194 | {\r | |
195 | EFI_STATUS Status;\r | |
196 | EFI_GUID CallerId;\r | |
197 | UINTN PrivateBufferSize;\r | |
198 | BOOLEAN Complete;\r | |
199 | VOID *PrivateDataBuffer;\r | |
200 | \r | |
201 | //\r | |
202 | // Get the last write\r | |
203 | //\r | |
204 | *Pending = FALSE;\r | |
205 | PrivateBufferSize = PrivateDataSize;\r | |
206 | PrivateDataBuffer = NULL;\r | |
207 | Status = FtwProtocol->GetLastWrite (\r | |
208 | FtwProtocol,\r | |
209 | &CallerId,\r | |
210 | Lba,\r | |
211 | Offset,\r | |
212 | Length,\r | |
213 | &PrivateBufferSize,\r | |
214 | PrivateData,\r | |
215 | &Complete\r | |
216 | );\r | |
217 | if (EFI_ERROR (Status)) {\r | |
218 | //\r | |
219 | // If there is no incompleted record, return success.\r | |
220 | //\r | |
221 | if ((Status == EFI_NOT_FOUND) && Complete) {\r | |
222 | return EFI_SUCCESS;\r | |
223 | } else if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
224 | //\r | |
225 | // If buffer too small, reallocate buffer and call getlastwrite again\r | |
226 | //\r | |
227 | PrivateDataBuffer = AllocatePool (PrivateBufferSize);\r | |
228 | \r | |
229 | if (PrivateDataBuffer == NULL) {\r | |
230 | return EFI_OUT_OF_RESOURCES;\r | |
231 | }\r | |
232 | \r | |
233 | Status = FtwProtocol->GetLastWrite (\r | |
234 | FtwProtocol,\r | |
235 | &CallerId,\r | |
236 | Lba,\r | |
237 | Offset,\r | |
238 | Length,\r | |
239 | &PrivateBufferSize,\r | |
240 | PrivateDataBuffer,\r | |
241 | &Complete\r | |
242 | );\r | |
243 | if (EFI_ERROR (Status)) {\r | |
244 | FreePool ( PrivateDataBuffer);\r | |
245 | return EFI_ABORTED;\r | |
246 | } else {\r | |
247 | CopyMem (PrivateData, PrivateDataBuffer, PrivateDataSize);\r | |
248 | FreePool (PrivateDataBuffer);\r | |
249 | PrivateDataBuffer = NULL;\r | |
250 | }\r | |
251 | } else {\r | |
252 | return EFI_ABORTED;\r | |
253 | }\r | |
254 | }\r | |
255 | \r | |
256 | *Pending = TRUE;\r | |
257 | \r | |
258 | //\r | |
259 | // If the caller is not the update driver, then return.\r | |
260 | // The update driver cannot continue to perform the update\r | |
261 | //\r | |
262 | if (CompareMem (&CallerId, &gEfiCallerIdGuid, sizeof (EFI_GUID)) != 0) {\r | |
263 | return EFI_NOT_FOUND;\r | |
264 | }\r | |
265 | \r | |
266 | //\r | |
267 | // Check the private data and see if it is the one I need.\r | |
268 | //\r | |
269 | if (CompareMem (&(PrivateData->FileGuid), &(ConfigData->FileGuid), sizeof(EFI_GUID)) != 0) {\r | |
270 | return EFI_NOT_FOUND;\r | |
271 | }\r | |
272 | \r | |
273 | //\r | |
274 | // If the caller is the update driver and complete is not true, then restart().\r | |
275 | //\r | |
276 | if (!Complete) {\r | |
277 | //\r | |
278 | // Re-start the update\r | |
279 | //\r | |
280 | Status = FtwProtocol->Restart (\r | |
281 | FtwProtocol,\r | |
282 | FvbHandle\r | |
283 | );\r | |
284 | //\r | |
285 | // If restart() error, then abort().\r | |
286 | //\r | |
287 | if (EFI_ERROR (Status)) {\r | |
288 | FtwProtocol->Abort (FtwProtocol);\r | |
289 | //\r | |
290 | // Now set Pending as FALSE as this record has been cleared\r | |
291 | //\r | |
292 | *Pending = FALSE;\r | |
293 | return EFI_SUCCESS;\r | |
294 | }\r | |
295 | \r | |
296 | }\r | |
297 | \r | |
298 | return Status;\r | |
299 | }\r | |
300 | \r | |
301 | /**\r | |
302 | Update the whole FV image in fault tolerant write method.\r | |
303 | \r | |
304 | @param FvbHandle Handle of FVB protocol for the updated flash range.\r | |
305 | @param FvbProtocol FVB protocol.\r | |
306 | @param BlockMap Block array to specify flash area.\r | |
307 | @param ConfigData Config data on updating driver.\r | |
308 | @param ImageBuffer Image buffer to be updated.\r | |
309 | @param ImageSize Image size.\r | |
310 | \r | |
311 | @retval EFI_SUCCESS FV image is writed into flash.\r | |
312 | @retval EFI_INVALID_PARAMETER Config data is not valid.\r | |
313 | @retval EFI_NOT_FOUND FTW protocol doesn't exist.\r | |
314 | @retval EFI_OUT_OF_RESOURCES No enough backup space.\r | |
315 | @retval EFI_ABORTED Error happen when update FV.\r | |
316 | \r | |
317 | **/\r | |
318 | EFI_STATUS\r | |
319 | FaultTolerantUpdateOnWholeFv (\r | |
320 | IN EFI_HANDLE FvbHandle,\r | |
321 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
322 | IN EFI_FV_BLOCK_MAP_ENTRY *BlockMap,\r | |
323 | IN UPDATE_CONFIG_DATA *ConfigData,\r | |
324 | IN UINT8 *ImageBuffer,\r | |
325 | IN UINTN ImageSize\r | |
326 | )\r | |
327 | {\r | |
328 | EFI_STATUS Status;\r | |
329 | EFI_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol;\r | |
330 | UINTN MaxBlockSize;\r | |
331 | UINTN FtwMaxBlockSize;\r | |
332 | BOOLEAN Pending;\r | |
333 | UPDATE_PRIVATE_DATA PrivateData;\r | |
334 | EFI_LBA PendingLba;\r | |
335 | EFI_LBA Lba;\r | |
336 | UINTN PendingOffset;\r | |
337 | UINTN Offset;\r | |
338 | UINTN PendingLength;\r | |
339 | UINTN Length;\r | |
340 | EFI_FV_BLOCK_MAP_ENTRY *PtrMap;\r | |
341 | UINTN NumOfBlocks;\r | |
342 | UINTN Index;\r | |
343 | UINT8 *UpdateBuffer;\r | |
344 | \r | |
345 | if ((ConfigData->UpdateType != UpdateWholeFV)\r | |
346 | || (!ConfigData->FaultTolerant)) {\r | |
347 | return EFI_INVALID_PARAMETER;\r | |
348 | }\r | |
349 | \r | |
350 | //\r | |
351 | // Get the FTW protocol\r | |
352 | //\r | |
353 | Status = gBS->LocateProtocol (\r | |
354 | &gEfiFaultTolerantWriteProtocolGuid,\r | |
355 | NULL,\r | |
356 | (VOID **) &FtwProtocol\r | |
357 | );\r | |
358 | if (EFI_ERROR (Status)) {\r | |
359 | return EFI_NOT_FOUND;\r | |
360 | }\r | |
361 | \r | |
362 | //\r | |
363 | // Get the maximum block size of the FV, and number of blocks\r | |
364 | // NumOfBlocks will be the NumOfUdpates.\r | |
365 | //\r | |
366 | MaxBlockSize = 0;\r | |
367 | NumOfBlocks = 0;\r | |
368 | PtrMap = BlockMap;\r | |
369 | while (TRUE) {\r | |
370 | if ((PtrMap->NumBlocks == 0) || (PtrMap->Length == 0)) {\r | |
371 | break;\r | |
372 | }\r | |
373 | if (MaxBlockSize < PtrMap->Length) {\r | |
374 | MaxBlockSize = PtrMap->Length;\r | |
375 | }\r | |
376 | NumOfBlocks = NumOfBlocks + PtrMap->NumBlocks;\r | |
377 | PtrMap++;\r | |
378 | }\r | |
379 | \r | |
380 | FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);\r | |
381 | //\r | |
382 | // Not enough backup space. return directly\r | |
383 | //\r | |
384 | if (FtwMaxBlockSize < MaxBlockSize) {\r | |
385 | return EFI_OUT_OF_RESOURCES;\r | |
386 | }\r | |
387 | \r | |
388 | PendingLba = 0;\r | |
389 | PendingOffset = 0;\r | |
390 | PendingLength = 0;\r | |
391 | Pending = FALSE;\r | |
392 | \r | |
393 | //\r | |
394 | // Fault Tolerant Write can only support actual fault tolerance if the write\r | |
395 | // is a reclaim operation, which means the data buffer (new and old) are\r | |
396 | // acutally both stored in flash. But for component update write, the data\r | |
397 | // are now in memory. So we cannot actually recover the data after power\r | |
398 | // failure.\r | |
399 | //\r | |
400 | Status = RetrieveLastWrite (\r | |
401 | FvbHandle,\r | |
402 | FtwProtocol,\r | |
403 | ConfigData,\r | |
404 | sizeof (UPDATE_PRIVATE_DATA),\r | |
405 | &PrivateData,\r | |
406 | &PendingLba,\r | |
407 | &PendingOffset,\r | |
408 | &PendingLength,\r | |
409 | &Pending\r | |
410 | );\r | |
411 | \r | |
412 | if (Pending && (Status == EFI_NOT_FOUND)) {\r | |
413 | //\r | |
414 | // Cannot continue with the write operation\r | |
415 | //\r | |
416 | return EFI_ABORTED;\r | |
417 | }\r | |
418 | \r | |
419 | if (EFI_ERROR(Status)) {\r | |
420 | return EFI_ABORTED;\r | |
421 | }\r | |
422 | \r | |
423 | //\r | |
424 | // Currently we start from the pending write if there is any. But as we\r | |
425 | // are going to update a whole FV, we can just abort last write and start\r | |
426 | // from the very begining.\r | |
427 | //\r | |
428 | if (!Pending) {\r | |
429 | //\r | |
430 | // Now allocte the update private data in FTW. If there is pending\r | |
431 | // write, it has already been allocated and no need to allocate here.\r | |
432 | //\r | |
433 | Status = FtwProtocol->Allocate (\r | |
434 | FtwProtocol,\r | |
435 | &gEfiCallerIdGuid,\r | |
436 | sizeof (UPDATE_PRIVATE_DATA),\r | |
437 | NumOfBlocks\r | |
438 | );\r | |
439 | if (EFI_ERROR (Status)) {\r | |
440 | return Status;\r | |
441 | }\r | |
442 | }\r | |
443 | \r | |
444 | //\r | |
445 | // Perform the update now. If there are pending writes, we need to\r | |
446 | // start from the pending write instead of the very beginning.\r | |
447 | //\r | |
448 | PtrMap = BlockMap;\r | |
449 | Lba = 0;\r | |
450 | Offset = 0;\r | |
451 | UpdateBuffer = ImageBuffer;\r | |
452 | CopyMem (\r | |
453 | (VOID *) &PrivateData.FileGuid,\r | |
454 | (VOID *) &ConfigData->FileGuid,\r | |
455 | sizeof (EFI_GUID)\r | |
456 | );\r | |
457 | \r | |
458 | while (TRUE) {\r | |
459 | if ((PtrMap->NumBlocks == 0) || (PtrMap->Length == 0)) {\r | |
460 | break;\r | |
461 | }\r | |
462 | Length = (UINTN)PtrMap->Length;\r | |
463 | for (Index = 0; Index < PtrMap->NumBlocks; Index++) {\r | |
464 | \r | |
465 | //\r | |
466 | // Add an extra check here to see if the pending record is correct\r | |
467 | //\r | |
468 | if (Pending && (Lba == PendingLba)) {\r | |
469 | if ((PendingOffset != Offset) || (PendingLength != Length)) {\r | |
470 | //\r | |
471 | // Error.\r | |
472 | //\r | |
473 | Status = EFI_ABORTED;\r | |
474 | break;\r | |
475 | }\r | |
476 | }\r | |
477 | \r | |
478 | if ((!Pending) || (Lba >= PendingLba)) {\r | |
479 | Status = FtwProtocol->Write (\r | |
480 | FtwProtocol,\r | |
481 | Lba, // Lba\r | |
482 | Offset, // Offset\r | |
483 | Length, // Size\r | |
484 | &PrivateData, // Private Data\r | |
485 | FvbHandle, // FVB handle\r | |
486 | UpdateBuffer // Buffer\r | |
487 | );\r | |
488 | }\r | |
489 | \r | |
490 | if (EFI_ERROR (Status)) {\r | |
491 | break;\r | |
492 | }\r | |
493 | Lba++;\r | |
494 | UpdateBuffer = (UINT8 *) ((UINTN)UpdateBuffer + Length);\r | |
495 | }\r | |
496 | \r | |
497 | if (EFI_ERROR (Status)) {\r | |
498 | break;\r | |
499 | }\r | |
500 | PtrMap++;\r | |
501 | }\r | |
502 | \r | |
503 | return Status;\r | |
504 | \r | |
505 | }\r | |
506 | \r | |
507 | /**\r | |
508 | Directly update the whole FV image without fault tolerant write method.\r | |
509 | \r | |
510 | @param FvbHandle Handle of FVB protocol for the updated flash range.\r | |
511 | @param FvbProtocol FVB protocol.\r | |
512 | @param BlockMap Block array to specify flash area.\r | |
513 | @param ConfigData Config data on updating driver.\r | |
514 | @param ImageBuffer Image buffer to be updated.\r | |
515 | @param ImageSize Image size.\r | |
516 | \r | |
517 | @retval EFI_SUCCESS FV image is writed into flash.\r | |
518 | @retval EFI_INVALID_PARAMETER Config data is not valid.\r | |
519 | @retval EFI_ABORTED Error happen when update FV.\r | |
520 | \r | |
521 | **/\r | |
522 | EFI_STATUS\r | |
523 | NonFaultTolerantUpdateOnWholeFv (\r | |
524 | IN EFI_HANDLE FvbHandle,\r | |
525 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
526 | IN EFI_FV_BLOCK_MAP_ENTRY *BlockMap,\r | |
527 | IN UPDATE_CONFIG_DATA *ConfigData,\r | |
528 | IN UINT8 *ImageBuffer,\r | |
529 | IN UINTN ImageSize\r | |
530 | )\r | |
531 | {\r | |
532 | EFI_STATUS Status;\r | |
533 | EFI_FV_BLOCK_MAP_ENTRY *PtrMap;\r | |
534 | UINTN Index;\r | |
535 | EFI_LBA UpdateLba;\r | |
536 | UINT8 *UpdateBuffer;\r | |
537 | UINTN UpdateSize;\r | |
538 | \r | |
539 | if ((ConfigData->UpdateType != UpdateWholeFV )\r | |
540 | || (ConfigData->FaultTolerant)) {\r | |
541 | return EFI_INVALID_PARAMETER;\r | |
542 | }\r | |
543 | \r | |
544 | Status = EFI_SUCCESS;\r | |
545 | PtrMap = BlockMap;\r | |
546 | UpdateLba = 0;\r | |
547 | UpdateBuffer = ImageBuffer;\r | |
548 | \r | |
549 | //\r | |
550 | // Perform the update now\r | |
551 | //\r | |
552 | while (TRUE) {\r | |
553 | if ((PtrMap->NumBlocks == 0) || (PtrMap->Length == 0)) {\r | |
554 | break;\r | |
555 | }\r | |
556 | UpdateSize = (UINTN)PtrMap->Length;\r | |
557 | for (Index = 0; Index < PtrMap->NumBlocks; Index++) {\r | |
558 | Status = UpdateOneBlock (\r | |
559 | FvbProtocol,\r | |
560 | UpdateLba,\r | |
561 | UpdateSize,\r | |
562 | UpdateBuffer\r | |
563 | );\r | |
564 | if (EFI_ERROR (Status)) {\r | |
565 | break;\r | |
566 | }\r | |
567 | \r | |
568 | UpdateLba++;\r | |
569 | UpdateBuffer = (UINT8 *) ((UINTN)UpdateBuffer + UpdateSize);\r | |
570 | }\r | |
571 | \r | |
572 | if (EFI_ERROR (Status)) {\r | |
573 | break;\r | |
574 | }\r | |
575 | PtrMap++;\r | |
576 | }\r | |
577 | \r | |
578 | return Status;\r | |
579 | }\r | |
580 | \r | |
581 | /**\r | |
582 | Update the whole FV image, and reinsall FVB protocol for the updated FV image.\r | |
583 | \r | |
584 | @param FvbHandle Handle of FVB protocol for the updated flash range.\r | |
585 | @param FvbProtocol FVB protocol.\r | |
586 | @param ConfigData Config data on updating driver.\r | |
587 | @param ImageBuffer Image buffer to be updated.\r | |
588 | @param ImageSize Image size.\r | |
589 | \r | |
590 | @retval EFI_INVALID_PARAMETER Update type is not UpdateWholeFV.\r | |
591 | Or Image size is not same to the size of whole FV.\r | |
592 | @retval EFI_OUT_OF_RESOURCES No enoug memory is allocated.\r | |
593 | @retval EFI_SUCCESS FV image is updated, and its FVB protocol is reinstalled.\r | |
594 | \r | |
595 | **/\r | |
596 | EFI_STATUS\r | |
597 | PerformUpdateOnWholeFv (\r | |
598 | IN EFI_HANDLE FvbHandle,\r | |
599 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
600 | IN UPDATE_CONFIG_DATA *ConfigData,\r | |
601 | IN UINT8 *ImageBuffer,\r | |
602 | IN UINTN ImageSize\r | |
603 | )\r | |
604 | {\r | |
605 | EFI_STATUS Status;\r | |
606 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
607 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r | |
608 | CHAR16 *TmpStr;\r | |
609 | \r | |
610 | if (ConfigData->UpdateType != UpdateWholeFV) {\r | |
611 | return EFI_INVALID_PARAMETER;\r | |
612 | }\r | |
613 | \r | |
614 | //\r | |
615 | // Get the header of the firmware volume\r | |
616 | //\r | |
617 | FwVolHeader = NULL;\r | |
618 | FwVolHeader = AllocatePool (((EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) (ConfigData->BaseAddress)))->HeaderLength);\r | |
619 | if (FwVolHeader == NULL) {\r | |
620 | return EFI_OUT_OF_RESOURCES;\r | |
621 | }\r | |
622 | CopyMem (\r | |
623 | FwVolHeader,\r | |
624 | (VOID *) ((UINTN) (ConfigData->BaseAddress)),\r | |
625 | ((EFI_FIRMWARE_VOLUME_HEADER *) ((UINTN) (ConfigData->BaseAddress)))->HeaderLength\r | |
626 | );\r | |
627 | \r | |
628 | //\r | |
629 | // Check if ImageSize is the same as the size of the whole FV\r | |
630 | //\r | |
631 | if ((UINT64)ImageSize != FwVolHeader->FvLength) {\r | |
632 | FreePool (FwVolHeader);\r | |
633 | return EFI_INVALID_PARAMETER;\r | |
634 | }\r | |
635 | \r | |
636 | //\r | |
637 | // Print on screen\r | |
638 | //\r | |
639 | TmpStr = HiiGetString (gHiiHandle, STRING_TOKEN(UPDATE_FIRMWARE_VOLUME), NULL);\r | |
640 | if (TmpStr != NULL) {\r | |
641 | Print (TmpStr, ConfigData->BaseAddress, (FwVolHeader->FvLength + ConfigData->BaseAddress));\r | |
642 | FreePool (TmpStr);\r | |
643 | }\r | |
644 | \r | |
645 | DEBUG ((EFI_D_UPDATE, "UpdateDriver: updating whole FV from %08LX to %08LX\n",\r | |
646 | ConfigData->BaseAddress, (FwVolHeader->FvLength + ConfigData->BaseAddress)));\r | |
647 | \r | |
648 | //\r | |
649 | // Get the block map of the firmware volume\r | |
650 | //\r | |
651 | BlockMap = &(FwVolHeader->BlockMap[0]);\r | |
652 | \r | |
653 | //\r | |
654 | // It is about the same if we are going to fault tolerantly update\r | |
655 | // a certain FV in our current design. But we divide non-fault tolerant\r | |
656 | // and fault tolerant udpate here for better maintenance as fault\r | |
657 | // tolerance may change and may be done more wisely if we have space.\r | |
658 | //\r | |
659 | if (ConfigData->FaultTolerant) {\r | |
660 | Status = FaultTolerantUpdateOnWholeFv (\r | |
661 | FvbHandle,\r | |
662 | FvbProtocol,\r | |
663 | BlockMap,\r | |
664 | ConfigData,\r | |
665 | ImageBuffer,\r | |
666 | ImageSize\r | |
667 | );\r | |
668 | } else {\r | |
669 | Status = NonFaultTolerantUpdateOnWholeFv (\r | |
670 | FvbHandle,\r | |
671 | FvbProtocol,\r | |
672 | BlockMap,\r | |
673 | ConfigData,\r | |
674 | ImageBuffer,\r | |
675 | ImageSize\r | |
676 | );\r | |
677 | }\r | |
678 | \r | |
679 | FreePool (FwVolHeader);\r | |
680 | \r | |
681 | if (EFI_ERROR (Status)) {\r | |
682 | return Status;\r | |
683 | }\r | |
684 | \r | |
685 | //\r | |
686 | // As the whole FV has been replaced, the FV driver shall re-parse the\r | |
687 | // firmware volume. So re-install FVB protocol here\r | |
688 | //\r | |
689 | Status = gBS->ReinstallProtocolInterface (\r | |
690 | FvbHandle,\r | |
691 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
692 | FvbProtocol,\r | |
693 | FvbProtocol\r | |
694 | );\r | |
695 | \r | |
696 | return Status;\r | |
697 | }\r | |
698 | \r | |
699 | /**\r | |
700 | Update certain file in the FV.\r | |
701 | \r | |
702 | @param FvbHandle Handle of FVB protocol for the updated flash range.\r | |
703 | @param FvbProtocol FVB protocol.\r | |
704 | @param ConfigData Config data on updating driver.\r | |
705 | @param ImageBuffer Image buffer to be updated.\r | |
706 | @param ImageSize Image size.\r | |
707 | @param FileType FFS file type.\r | |
708 | @param FileAttributes FFS file attribute\r | |
709 | \r | |
710 | @retval EFI_INVALID_PARAMETER Update type is not UpdateFvFile.\r | |
711 | Or Image size is not same to the size of whole FV.\r | |
712 | @retval EFI_UNSUPPORTED PEIM FFS is unsupported to be updated.\r | |
713 | @retval EFI_SUCCESS The FFS file is added into FV.\r | |
714 | \r | |
715 | **/\r | |
716 | EFI_STATUS\r | |
717 | PerformUpdateOnFvFile (\r | |
718 | IN EFI_HANDLE FvbHandle,\r | |
719 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
720 | IN UPDATE_CONFIG_DATA *ConfigData,\r | |
721 | IN UINT8 *ImageBuffer,\r | |
722 | IN UINTN ImageSize,\r | |
723 | IN EFI_FV_FILETYPE FileType,\r | |
724 | IN EFI_FV_FILE_ATTRIBUTES FileAttributes\r | |
725 | )\r | |
726 | {\r | |
727 | EFI_STATUS Status;\r | |
728 | EFI_FIRMWARE_VOLUME2_PROTOCOL *FwVolProtocol;\r | |
729 | EFI_FV_WRITE_FILE_DATA FileData;\r | |
730 | CHAR16 *TmpStr;\r | |
731 | \r | |
732 | if (ConfigData->UpdateType != UpdateFvFile) {\r | |
733 | return EFI_INVALID_PARAMETER;\r | |
734 | }\r | |
735 | \r | |
736 | //\r | |
737 | // Print on screen\r | |
738 | //\r | |
739 | TmpStr = HiiGetString (gHiiHandle, STRING_TOKEN(UPDATE_FIRMWARE_VOLUME_FILE), NULL);\r | |
740 | if (TmpStr != NULL) {\r | |
741 | Print (TmpStr, &(ConfigData->FileGuid));\r | |
742 | FreePool (TmpStr);\r | |
743 | }\r | |
744 | \r | |
745 | DEBUG ((EFI_D_UPDATE, "UpdateDriver: updating file: %g\n",\r | |
746 | &(ConfigData->FileGuid)));\r | |
747 | \r | |
748 | //\r | |
749 | // Get Firmware volume protocol on this FVB protocol\r | |
750 | //\r | |
751 | Status = gBS->HandleProtocol (\r | |
752 | FvbHandle,\r | |
753 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
754 | (VOID **) &FwVolProtocol\r | |
755 | );\r | |
756 | if (EFI_ERROR (Status)) {\r | |
757 | return Status;\r | |
758 | }\r | |
759 | \r | |
760 | //\r | |
761 | // If it is a PEIM, we need first to rebase it before committing\r | |
762 | // the write to target\r | |
763 | //\r | |
764 | if ((FileType == EFI_FV_FILETYPE_PEI_CORE) || (FileType == EFI_FV_FILETYPE_PEIM )\r | |
765 | || (FileType == EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER)) {\r | |
766 | return EFI_UNSUPPORTED;\r | |
767 | }\r | |
768 | \r | |
769 | FileData.NameGuid = &(ConfigData->FileGuid);\r | |
770 | FileData.Type = FileType;\r | |
771 | FileData.FileAttributes = FileAttributes;\r | |
772 | FileData.Buffer = ImageBuffer;\r | |
773 | FileData.BufferSize = (UINT32) ImageSize;\r | |
774 | \r | |
775 | Status = FwVolProtocol->WriteFile (\r | |
776 | FwVolProtocol,\r | |
777 | 1, // NumberOfFiles\r | |
778 | (EFI_FV_WRITE_POLICY)ConfigData->FaultTolerant,\r | |
779 | &FileData\r | |
780 | );\r | |
781 | return Status;\r | |
782 | }\r | |
783 | \r | |
784 | /**\r | |
785 | Update the buffer into flash area in fault tolerant write method.\r | |
786 | \r | |
787 | @param ImageBuffer Image buffer to be updated.\r | |
788 | @param SizeLeft Size of the image buffer.\r | |
789 | @param UpdatedSize Size of the updated buffer.\r | |
790 | @param ConfigData Config data on updating driver.\r | |
791 | @param FlashAddress Flash address to be updated as start address.\r | |
792 | @param FvbProtocol FVB protocol.\r | |
793 | @param FvbHandle Handle of FVB protocol for the updated flash range.\r | |
794 | \r | |
795 | @retval EFI_SUCCESS Buffer data is updated into flash.\r | |
796 | @retval EFI_INVALID_PARAMETER Base flash address is not in FVB flash area.\r | |
797 | @retval EFI_NOT_FOUND FTW protocol doesn't exist.\r | |
798 | @retval EFI_OUT_OF_RESOURCES No enough backup space.\r | |
799 | @retval EFI_ABORTED Error happen when update flash area.\r | |
800 | \r | |
801 | **/\r | |
802 | EFI_STATUS\r | |
803 | FaultTolerantUpdateOnPartFv (\r | |
804 | IN UINT8 *ImageBuffer,\r | |
805 | IN UINTN SizeLeft,\r | |
806 | IN OUT UINTN *UpdatedSize,\r | |
807 | IN UPDATE_CONFIG_DATA *ConfigData,\r | |
808 | IN EFI_PHYSICAL_ADDRESS FlashAddress,\r | |
809 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
810 | IN EFI_HANDLE FvbHandle\r | |
811 | )\r | |
812 | {\r | |
813 | EFI_STATUS Status;\r | |
814 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
815 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeaderTmp;\r | |
816 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
817 | EFI_PHYSICAL_ADDRESS FvBase;\r | |
818 | EFI_PHYSICAL_ADDRESS NextBlock;\r | |
819 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r | |
820 | EFI_FV_BLOCK_MAP_ENTRY *PtrMap;\r | |
821 | UINTN NumOfUpdates;\r | |
822 | UINTN TotalSize;\r | |
823 | EFI_PHYSICAL_ADDRESS StartAddress;\r | |
824 | EFI_FAULT_TOLERANT_WRITE_PROTOCOL *FtwProtocol;\r | |
825 | UINTN MaxBlockSize;\r | |
826 | UINTN FtwMaxBlockSize;\r | |
827 | BOOLEAN Pending;\r | |
828 | UPDATE_PRIVATE_DATA PrivateData;\r | |
829 | EFI_LBA PendingLba;\r | |
830 | EFI_LBA Lba;\r | |
831 | UINTN BlockSize;\r | |
832 | UINTN PendingOffset;\r | |
833 | UINTN Offset;\r | |
834 | UINTN PendingLength;\r | |
835 | UINTN Length;\r | |
836 | UINTN Index;\r | |
837 | UINT8 *Image;\r | |
838 | \r | |
839 | //\r | |
840 | // Get the block map to update the block one by one\r | |
841 | //\r | |
842 | Status = FvbProtocol->GetPhysicalAddress (\r | |
843 | FvbProtocol,\r | |
844 | &FvBase\r | |
845 | );\r | |
846 | if (EFI_ERROR (Status)) {\r | |
847 | return Status;\r | |
848 | }\r | |
849 | \r | |
850 | FwVolHeaderTmp = (EFI_FIRMWARE_VOLUME_HEADER *)(UINTN)FvBase;\r | |
851 | if ((FlashAddress < FvBase) || (FlashAddress > (FvBase + FwVolHeaderTmp->FvLength))) {\r | |
852 | return EFI_INVALID_PARAMETER;\r | |
853 | }\r | |
854 | \r | |
855 | FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *)AllocateCopyPool (\r | |
856 | FwVolHeaderTmp->HeaderLength,\r | |
857 | FwVolHeaderTmp\r | |
858 | );\r | |
859 | if (FwVolHeader == NULL) {\r | |
860 | return EFI_OUT_OF_RESOURCES;\r | |
861 | }\r | |
862 | \r | |
863 | //\r | |
864 | // For fault tolerant write, we have to know how many blocks we need to\r | |
865 | // update. So we will calculate number of updates and max block size first\r | |
866 | //\r | |
867 | NumOfUpdates = 0;\r | |
868 | MaxBlockSize = 0;\r | |
869 | TotalSize = SizeLeft;\r | |
870 | StartAddress = FlashAddress;\r | |
871 | BaseAddress = FvBase;\r | |
872 | BlockMap = &(FwVolHeader->BlockMap[0]);\r | |
873 | PtrMap = BlockMap;\r | |
874 | \r | |
875 | while (TotalSize > 0) {\r | |
876 | if ((PtrMap->NumBlocks == 0) || (PtrMap->Length == 0)) {\r | |
877 | break;\r | |
878 | }\r | |
879 | \r | |
880 | BlockSize = PtrMap->Length;\r | |
881 | for (Index = 0; Index < PtrMap->NumBlocks; Index++) {\r | |
882 | NextBlock = BaseAddress + BlockSize;\r | |
883 | //\r | |
884 | // Check if this block need to be updated\r | |
885 | //\r | |
886 | if ((StartAddress >= BaseAddress) && (StartAddress < NextBlock)) {\r | |
887 | //\r | |
888 | // Get the maximum block size\r | |
889 | //\r | |
890 | if (MaxBlockSize < BlockSize) {\r | |
891 | MaxBlockSize = BlockSize;\r | |
892 | }\r | |
893 | \r | |
894 | //\r | |
895 | // This block shall be udpated. So increment number of updates\r | |
896 | //\r | |
897 | NumOfUpdates++;\r | |
898 | Offset = (UINTN) (StartAddress - BaseAddress);\r | |
899 | Length = TotalSize;\r | |
900 | if ((Length + Offset ) > BlockSize) {\r | |
901 | Length = BlockSize - Offset;\r | |
902 | }\r | |
903 | \r | |
904 | StartAddress = StartAddress + Length;\r | |
905 | TotalSize = TotalSize - Length;\r | |
906 | if (TotalSize <= 0) {\r | |
907 | break;\r | |
908 | }\r | |
909 | }\r | |
910 | BaseAddress = NextBlock;\r | |
911 | }\r | |
912 | PtrMap++;\r | |
913 | }\r | |
914 | \r | |
915 | //\r | |
916 | // Get the FTW protocol\r | |
917 | //\r | |
918 | Status = gBS->LocateProtocol (\r | |
919 | &gEfiFaultTolerantWriteProtocolGuid,\r | |
920 | NULL,\r | |
921 | (VOID **) &FtwProtocol\r | |
922 | );\r | |
923 | if (EFI_ERROR (Status)) {\r | |
924 | FreePool (FwVolHeader);\r | |
925 | return EFI_NOT_FOUND;\r | |
926 | }\r | |
927 | \r | |
928 | FtwProtocol->GetMaxBlockSize (FtwProtocol, &FtwMaxBlockSize);\r | |
929 | \r | |
930 | //\r | |
931 | // Not enough backup space. return directly\r | |
932 | //\r | |
933 | if (FtwMaxBlockSize < MaxBlockSize) {\r | |
934 | FreePool (FwVolHeader);\r | |
935 | return EFI_OUT_OF_RESOURCES;\r | |
936 | }\r | |
937 | \r | |
938 | PendingLba = 0;\r | |
939 | PendingOffset = 0;\r | |
940 | PendingLength = 0;\r | |
941 | Pending = FALSE;\r | |
942 | \r | |
943 | //\r | |
944 | // Fault Tolerant Write can only support actual fault tolerance if the write\r | |
945 | // is a reclaim operation, which means the data buffer (new and old) are\r | |
946 | // acutally both stored in flash. But for component update write, the data\r | |
947 | // are now in memory. So we cannot actually recover the data after power\r | |
948 | // failure.\r | |
949 | //\r | |
950 | Status = RetrieveLastWrite (\r | |
951 | FvbHandle,\r | |
952 | FtwProtocol,\r | |
953 | ConfigData,\r | |
954 | sizeof (UPDATE_PRIVATE_DATA),\r | |
955 | &PrivateData,\r | |
956 | &PendingLba,\r | |
957 | &PendingOffset,\r | |
958 | &PendingLength,\r | |
959 | &Pending\r | |
960 | );\r | |
961 | if (Pending && (Status == EFI_NOT_FOUND)) {\r | |
962 | //\r | |
963 | // I'm not the owner of the pending fault tolerant write record\r | |
964 | // Cannot continue with the write operation\r | |
965 | //\r | |
966 | FreePool (FwVolHeader);\r | |
967 | return EFI_ABORTED;\r | |
968 | }\r | |
969 | \r | |
970 | if (EFI_ERROR(Status)) {\r | |
971 | FreePool (FwVolHeader);\r | |
972 | return EFI_ABORTED;\r | |
973 | }\r | |
974 | \r | |
975 | //\r | |
976 | // Currently we start from the pending write if there is any. But if the\r | |
977 | // caller is exactly the same, and the new data is already a in memory, (it\r | |
978 | // cannot be stored in flash in last write,) we can just abort last write\r | |
979 | // and start from the very begining.\r | |
980 | //\r | |
981 | if (!Pending) {\r | |
982 | //\r | |
983 | // Now allocte the update private data in FTW. If there is pending\r | |
984 | // write, it has already been allocated and no need to allocate here.\r | |
985 | //\r | |
986 | Status = FtwProtocol->Allocate (\r | |
987 | FtwProtocol,\r | |
988 | &gEfiCallerIdGuid,\r | |
989 | sizeof (UPDATE_PRIVATE_DATA),\r | |
990 | NumOfUpdates\r | |
991 | );\r | |
992 | if (EFI_ERROR (Status)) {\r | |
993 | FreePool (FwVolHeader);\r | |
994 | return Status;\r | |
995 | }\r | |
996 | }\r | |
997 | \r | |
998 | //\r | |
999 | // Perform the update now. If there are pending writes, we need to\r | |
1000 | // start from the pending write instead of the very beginning.\r | |
1001 | //\r | |
1002 | TotalSize = SizeLeft;\r | |
1003 | Lba = 0;\r | |
1004 | StartAddress = FlashAddress;\r | |
1005 | BaseAddress = FvBase;\r | |
1006 | PtrMap = BlockMap;\r | |
1007 | Image = ImageBuffer;\r | |
1008 | CopyMem (\r | |
1009 | (VOID *) &PrivateData.FileGuid,\r | |
1010 | (VOID *) &ConfigData->FileGuid,\r | |
1011 | sizeof (EFI_GUID)\r | |
1012 | );\r | |
1013 | \r | |
1014 | while (TotalSize > 0) {\r | |
1015 | if ((PtrMap->NumBlocks == 0) || (PtrMap->Length == 0)) {\r | |
1016 | break;\r | |
1017 | }\r | |
1018 | \r | |
1019 | BlockSize = (UINTN)PtrMap->Length;\r | |
1020 | for (Index = 0; Index < PtrMap->NumBlocks; Index++) {\r | |
1021 | NextBlock = BaseAddress + BlockSize;\r | |
1022 | if ((StartAddress >= BaseAddress) && (StartAddress < NextBlock)) {\r | |
1023 | //\r | |
1024 | // So we need to update this block\r | |
1025 | //\r | |
1026 | Offset = (UINTN) (StartAddress - BaseAddress);\r | |
1027 | Length = TotalSize;\r | |
1028 | if ((Length + Offset ) > BlockSize) {\r | |
1029 | Length = BlockSize - Offset;\r | |
1030 | }\r | |
1031 | \r | |
1032 | //\r | |
1033 | // Add an extra check here to see if the pending record is correct\r | |
1034 | //\r | |
1035 | if (Pending && (Lba == PendingLba)) {\r | |
1036 | if ((PendingOffset != Offset) || (PendingLength != Length)) {\r | |
1037 | //\r | |
1038 | // Error.\r | |
1039 | //\r | |
1040 | Status = EFI_ABORTED;\r | |
1041 | break;\r | |
1042 | }\r | |
1043 | }\r | |
1044 | \r | |
1045 | if ((!Pending) || (Lba >= PendingLba)) {\r | |
1046 | DEBUG ((EFI_D_UPDATE, "Update Flash area from %08LX to %08LX\n", StartAddress, (UINT64)StartAddress + Length));\r | |
1047 | Status = FtwProtocol->Write (\r | |
1048 | FtwProtocol,\r | |
1049 | Lba, // Lba\r | |
1050 | Offset, // Offset\r | |
1051 | Length, // Size\r | |
1052 | &PrivateData, // Private Data\r | |
1053 | FvbHandle, // FVB handle\r | |
1054 | Image // Buffer\r | |
1055 | );\r | |
1056 | if (EFI_ERROR (Status)) {\r | |
1057 | break;\r | |
1058 | }\r | |
1059 | }\r | |
1060 | \r | |
1061 | //\r | |
1062 | // Now increment StartAddress, ImageBuffer and decrease the\r | |
1063 | // left size to prepare for the next block update.\r | |
1064 | //\r | |
1065 | StartAddress = StartAddress + Length;\r | |
1066 | Image = Image + Length;\r | |
1067 | TotalSize = TotalSize - Length;\r | |
1068 | if (TotalSize <= 0) {\r | |
1069 | break;\r | |
1070 | }\r | |
1071 | }\r | |
1072 | BaseAddress = NextBlock;\r | |
1073 | Lba++;\r | |
1074 | }\r | |
1075 | \r | |
1076 | if (EFI_ERROR (Status)) {\r | |
1077 | break;\r | |
1078 | }\r | |
1079 | PtrMap++;\r | |
1080 | }\r | |
1081 | \r | |
1082 | FreePool (FwVolHeader);\r | |
1083 | \r | |
1084 | *UpdatedSize = SizeLeft - TotalSize;\r | |
1085 | \r | |
1086 | return EFI_SUCCESS;\r | |
1087 | }\r | |
1088 | \r | |
1089 | /**\r | |
1090 | Directly update the buffer into flash area without fault tolerant write method.\r | |
1091 | \r | |
1092 | @param ImageBuffer Image buffer to be updated.\r | |
1093 | @param SizeLeft Size of the image buffer.\r | |
1094 | @param UpdatedSize Size of the updated buffer.\r | |
1095 | @param FlashAddress Flash address to be updated as start address.\r | |
1096 | @param FvbProtocol FVB protocol.\r | |
1097 | @param FvbHandle Handle of FVB protocol for the updated flash range.\r | |
1098 | \r | |
1099 | @retval EFI_SUCCESS Buffer data is updated into flash.\r | |
1100 | @retval EFI_INVALID_PARAMETER Base flash address is not in FVB flash area.\r | |
1101 | @retval EFI_OUT_OF_RESOURCES No enough backup space.\r | |
1102 | \r | |
1103 | **/\r | |
1104 | EFI_STATUS\r | |
1105 | NonFaultTolerantUpdateOnPartFv (\r | |
1106 | IN UINT8 *ImageBuffer,\r | |
1107 | IN UINTN SizeLeft,\r | |
1108 | IN OUT UINTN *UpdatedSize,\r | |
1109 | IN EFI_PHYSICAL_ADDRESS FlashAddress,\r | |
1110 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol,\r | |
1111 | IN EFI_HANDLE FvbHandle\r | |
1112 | )\r | |
1113 | {\r | |
1114 | EFI_STATUS Status;\r | |
1115 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
1116 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeaderTmp;\r | |
1117 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
1118 | EFI_PHYSICAL_ADDRESS NextBlock;\r | |
1119 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r | |
1120 | UINTN Index;\r | |
1121 | UINTN TotalSize;\r | |
1122 | UINTN BlockSize;\r | |
1123 | EFI_LBA Lba;\r | |
1124 | UINTN Offset;\r | |
1125 | UINTN Length;\r | |
1126 | UINT8 *Image;\r | |
1127 | \r | |
1128 | //\r | |
1129 | // Get the block map to update the block one by one\r | |
1130 | //\r | |
1131 | Status = FvbProtocol->GetPhysicalAddress (\r | |
1132 | FvbProtocol,\r | |
1133 | &BaseAddress\r | |
1134 | );\r | |
1135 | if (EFI_ERROR (Status)) {\r | |
1136 | return Status;\r | |
1137 | }\r | |
1138 | \r | |
1139 | FwVolHeaderTmp = (EFI_FIRMWARE_VOLUME_HEADER *)(UINTN)BaseAddress;\r | |
1140 | if ((FlashAddress < BaseAddress) || (FlashAddress > ( BaseAddress + FwVolHeaderTmp->FvLength ))) {\r | |
1141 | return EFI_INVALID_PARAMETER;\r | |
1142 | }\r | |
1143 | \r | |
1144 | FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *)AllocateCopyPool (\r | |
1145 | FwVolHeaderTmp->HeaderLength,\r | |
1146 | FwVolHeaderTmp\r | |
1147 | );\r | |
1148 | if (FwVolHeader == NULL) {\r | |
1149 | return EFI_OUT_OF_RESOURCES;\r | |
1150 | }\r | |
1151 | \r | |
1152 | Image = ImageBuffer;\r | |
1153 | TotalSize = SizeLeft;\r | |
1154 | BlockMap = &(FwVolHeader->BlockMap[0]);\r | |
1155 | Lba = 0;\r | |
1156 | \r | |
1157 | while (TotalSize > 0) {\r | |
1158 | if ((BlockMap->NumBlocks == 0) || (BlockMap->Length == 0)) {\r | |
1159 | break;\r | |
1160 | }\r | |
1161 | \r | |
1162 | BlockSize = BlockMap->Length;\r | |
1163 | for (Index = 0 ; Index < BlockMap->NumBlocks ; Index++) {\r | |
1164 | NextBlock = BaseAddress + BlockSize;\r | |
1165 | if ((FlashAddress >= BaseAddress) && (FlashAddress < NextBlock)) {\r | |
1166 | //\r | |
1167 | // So we need to update this block\r | |
1168 | //\r | |
1169 | Offset = (UINTN) FlashAddress - (UINTN) BaseAddress;\r | |
1170 | Length = TotalSize;\r | |
1171 | if ((Length + Offset ) > BlockSize) {\r | |
1172 | Length = BlockSize - Offset;\r | |
1173 | }\r | |
1174 | \r | |
1175 | DEBUG ((EFI_D_UPDATE, "Update Flash area from %08LX to %08LX\n", FlashAddress, (UINT64)FlashAddress + Length));\r | |
1176 | //\r | |
1177 | // Update the block\r | |
1178 | //\r | |
1179 | Status = UpdateBufferInOneBlock (\r | |
1180 | FvbProtocol,\r | |
1181 | Lba,\r | |
1182 | Offset,\r | |
1183 | Length,\r | |
1184 | BlockSize,\r | |
1185 | Image\r | |
1186 | );\r | |
1187 | if (EFI_ERROR (Status)) {\r | |
1188 | FreePool (FwVolHeader);\r | |
1189 | return Status;\r | |
1190 | }\r | |
1191 | \r | |
1192 | //\r | |
1193 | // Now increment FlashAddress, ImageBuffer and decrease the\r | |
1194 | // left size to prepare for the next block update.\r | |
1195 | //\r | |
1196 | FlashAddress = FlashAddress + Length;\r | |
1197 | Image = Image + Length;\r | |
1198 | TotalSize = TotalSize - Length;\r | |
1199 | if (TotalSize <= 0) {\r | |
1200 | break;\r | |
1201 | }\r | |
1202 | }\r | |
1203 | BaseAddress = NextBlock;\r | |
1204 | Lba++;\r | |
1205 | }\r | |
1206 | \r | |
1207 | if (EFI_ERROR (Status)) {\r | |
1208 | break;\r | |
1209 | }\r | |
1210 | BlockMap++;\r | |
1211 | }\r | |
1212 | \r | |
1213 | FreePool (FwVolHeader);\r | |
1214 | \r | |
1215 | *UpdatedSize = SizeLeft - TotalSize;\r | |
1216 | \r | |
1217 | return EFI_SUCCESS;\r | |
1218 | }\r |