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Commit | Line | Data |
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85e923a5 LG |
1 | /** @file\r |
2 | \r | |
3 | Internal functions to operate Working Block Space.\r | |
4 | \r | |
d1102dba | 5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
85e923a5 LG |
7 | \r |
8 | **/\r | |
9 | \r | |
10 | \r | |
11 | #include "FaultTolerantWrite.h"\r | |
12 | \r | |
05cfd5f2 | 13 | EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER mWorkingBlockHeader = {ZERO_GUID, 0, 0, 0, 0, {0, 0, 0}, 0};\r |
85e923a5 | 14 | \r |
05cfd5f2 SZ |
15 | /**\r |
16 | Initialize a local work space header.\r | |
85e923a5 | 17 | \r |
05cfd5f2 SZ |
18 | Since Signature and WriteQueueSize have been known, Crc can be calculated out,\r |
19 | then the work space header will be fixed.\r | |
85e923a5 | 20 | **/\r |
05cfd5f2 SZ |
21 | VOID\r |
22 | InitializeLocalWorkSpaceHeader (\r | |
23 | VOID\r | |
85e923a5 LG |
24 | )\r |
25 | {\r | |
85e923a5 | 26 | //\r |
3e02ebb2 | 27 | // Check signature with gEdkiiWorkingBlockSignatureGuid.\r |
85e923a5 | 28 | //\r |
3e02ebb2 | 29 | if (CompareGuid (&gEdkiiWorkingBlockSignatureGuid, &mWorkingBlockHeader.Signature)) {\r |
05cfd5f2 SZ |
30 | //\r |
31 | // The local work space header has been initialized.\r | |
32 | //\r | |
33 | return;\r | |
85e923a5 | 34 | }\r |
05cfd5f2 SZ |
35 | \r |
36 | SetMem (\r | |
37 | &mWorkingBlockHeader,\r | |
38 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r | |
39 | FTW_ERASED_BYTE\r | |
40 | );\r | |
41 | \r | |
85e923a5 | 42 | //\r |
3e02ebb2 | 43 | // Here using gEdkiiWorkingBlockSignatureGuid as the signature.\r |
85e923a5 LG |
44 | //\r |
45 | CopyMem (\r | |
05cfd5f2 | 46 | &mWorkingBlockHeader.Signature,\r |
3e02ebb2 | 47 | &gEdkiiWorkingBlockSignatureGuid,\r |
05cfd5f2 | 48 | sizeof (EFI_GUID)\r |
85e923a5 | 49 | );\r |
16f69227 | 50 | mWorkingBlockHeader.WriteQueueSize = PcdGet32 (PcdFlashNvStorageFtwWorkingSize) - sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER);\r |
85e923a5 LG |
51 | \r |
52 | //\r | |
05cfd5f2 | 53 | // Crc is calculated with all the fields except Crc and STATE, so leave them as FTW_ERASED_BYTE.\r |
85e923a5 | 54 | //\r |
85e923a5 LG |
55 | \r |
56 | //\r | |
57 | // Calculate the Crc of woking block header\r | |
58 | //\r | |
22cedf5b AB |
59 | mWorkingBlockHeader.Crc = FtwCalculateCrc32 (&mWorkingBlockHeader,\r |
60 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));\r | |
05cfd5f2 SZ |
61 | \r |
62 | mWorkingBlockHeader.WorkingBlockValid = FTW_VALID_STATE;\r | |
63 | mWorkingBlockHeader.WorkingBlockInvalid = FTW_INVALID_STATE;\r | |
64 | }\r | |
65 | \r | |
66 | /**\r | |
67 | Check to see if it is a valid work space.\r | |
68 | \r | |
69 | \r | |
70 | @param WorkingHeader Pointer of working block header\r | |
71 | \r | |
72 | @retval TRUE The work space is valid.\r | |
73 | @retval FALSE The work space is invalid.\r | |
74 | \r | |
75 | **/\r | |
76 | BOOLEAN\r | |
77 | IsValidWorkSpace (\r | |
78 | IN EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingHeader\r | |
79 | )\r | |
80 | {\r | |
81 | if (WorkingHeader == NULL) {\r | |
85e923a5 LG |
82 | return FALSE;\r |
83 | }\r | |
84 | \r | |
05cfd5f2 SZ |
85 | if (CompareMem (WorkingHeader, &mWorkingBlockHeader, sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER)) == 0) {\r |
86 | return TRUE;\r | |
85e923a5 LG |
87 | }\r |
88 | \r | |
8a4b2435 | 89 | DEBUG ((EFI_D_INFO, "Ftw: Work block header check mismatch\n"));\r |
05cfd5f2 | 90 | return FALSE;\r |
85e923a5 LG |
91 | }\r |
92 | \r | |
93 | /**\r | |
94 | Initialize a work space when there is no work space.\r | |
95 | \r | |
96 | @param WorkingHeader Pointer of working block header\r | |
97 | \r | |
98 | @retval EFI_SUCCESS The function completed successfully\r | |
99 | @retval EFI_ABORTED The function could not complete successfully.\r | |
100 | \r | |
101 | **/\r | |
102 | EFI_STATUS\r | |
103 | InitWorkSpaceHeader (\r | |
104 | IN EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingHeader\r | |
105 | )\r | |
106 | {\r | |
85e923a5 LG |
107 | if (WorkingHeader == NULL) {\r |
108 | return EFI_INVALID_PARAMETER;\r | |
109 | }\r | |
85e923a5 | 110 | \r |
05cfd5f2 | 111 | CopyMem (WorkingHeader, &mWorkingBlockHeader, sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));\r |
85e923a5 LG |
112 | \r |
113 | return EFI_SUCCESS;\r | |
114 | }\r | |
115 | \r | |
0d3edd9d SZ |
116 | /**\r |
117 | Read work space data from work block or spare block.\r | |
118 | \r | |
0d3edd9d SZ |
119 | @param FvBlock FVB Protocol interface to access the block.\r |
120 | @param BlockSize The size of the block.\r | |
121 | @param Lba Lba of the block.\r | |
122 | @param Offset The offset within the block.\r | |
123 | @param Length The number of bytes to read from the block.\r | |
124 | @param Buffer The data is read.\r | |
125 | \r | |
126 | @retval EFI_SUCCESS The function completed successfully.\r | |
127 | @retval EFI_ABORTED The function could not complete successfully.\r | |
128 | \r | |
129 | **/\r | |
130 | EFI_STATUS\r | |
131 | ReadWorkSpaceData (\r | |
132 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r | |
133 | IN UINTN BlockSize,\r | |
134 | IN EFI_LBA Lba,\r | |
135 | IN UINTN Offset,\r | |
136 | IN UINTN Length,\r | |
137 | OUT UINT8 *Buffer\r | |
138 | )\r | |
139 | {\r | |
140 | EFI_STATUS Status;\r | |
141 | UINT8 *Ptr;\r | |
142 | UINTN MyLength;\r | |
143 | \r | |
144 | //\r | |
145 | // Calculate the real Offset and Lba to write.\r | |
146 | //\r | |
147 | while (Offset >= BlockSize) {\r | |
148 | Offset -= BlockSize;\r | |
149 | Lba++;\r | |
150 | }\r | |
151 | \r | |
152 | Ptr = Buffer;\r | |
153 | while (Length > 0) {\r | |
154 | if ((Offset + Length) > BlockSize) {\r | |
155 | MyLength = BlockSize - Offset;\r | |
156 | } else {\r | |
157 | MyLength = Length;\r | |
158 | }\r | |
159 | \r | |
160 | Status = FvBlock->Read (\r | |
161 | FvBlock,\r | |
162 | Lba,\r | |
163 | Offset,\r | |
164 | &MyLength,\r | |
165 | Ptr\r | |
166 | );\r | |
167 | if (EFI_ERROR (Status)) {\r | |
168 | return EFI_ABORTED;\r | |
169 | }\r | |
170 | Offset = 0;\r | |
171 | Length -= MyLength;\r | |
172 | Ptr += MyLength;\r | |
173 | Lba++;\r | |
174 | }\r | |
175 | \r | |
176 | return EFI_SUCCESS;\r | |
177 | }\r | |
178 | \r | |
179 | /**\r | |
180 | Write work space data to work block.\r | |
181 | \r | |
182 | @param FvBlock FVB Protocol interface to access the block.\r | |
183 | @param BlockSize The size of the block.\r | |
184 | @param Lba Lba of the block.\r | |
185 | @param Offset The offset within the block to place the data.\r | |
186 | @param Length The number of bytes to write to the block.\r | |
187 | @param Buffer The data to write.\r | |
188 | \r | |
189 | @retval EFI_SUCCESS The function completed successfully.\r | |
190 | @retval EFI_ABORTED The function could not complete successfully.\r | |
191 | \r | |
192 | **/\r | |
193 | EFI_STATUS\r | |
194 | WriteWorkSpaceData (\r | |
195 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r | |
196 | IN UINTN BlockSize,\r | |
197 | IN EFI_LBA Lba,\r | |
198 | IN UINTN Offset,\r | |
199 | IN UINTN Length,\r | |
200 | IN UINT8 *Buffer\r | |
201 | )\r | |
202 | {\r | |
203 | EFI_STATUS Status;\r | |
204 | UINT8 *Ptr;\r | |
205 | UINTN MyLength;\r | |
206 | \r | |
207 | //\r | |
208 | // Calculate the real Offset and Lba to write.\r | |
209 | //\r | |
210 | while (Offset >= BlockSize) {\r | |
211 | Offset -= BlockSize;\r | |
212 | Lba++;\r | |
213 | }\r | |
214 | \r | |
215 | Ptr = Buffer;\r | |
216 | while (Length > 0) {\r | |
217 | if ((Offset + Length) > BlockSize) {\r | |
218 | MyLength = BlockSize - Offset;\r | |
219 | } else {\r | |
220 | MyLength = Length;\r | |
221 | }\r | |
222 | \r | |
223 | Status = FvBlock->Write (\r | |
224 | FvBlock,\r | |
225 | Lba,\r | |
226 | Offset,\r | |
227 | &MyLength,\r | |
228 | Ptr\r | |
229 | );\r | |
230 | if (EFI_ERROR (Status)) {\r | |
231 | return EFI_ABORTED;\r | |
232 | }\r | |
233 | Offset = 0;\r | |
234 | Length -= MyLength;\r | |
235 | Ptr += MyLength;\r | |
236 | Lba++;\r | |
237 | }\r | |
238 | return EFI_SUCCESS;\r | |
239 | }\r | |
240 | \r | |
85e923a5 LG |
241 | /**\r |
242 | Read from working block to refresh the work space in memory.\r | |
243 | \r | |
244 | @param FtwDevice Point to private data of FTW driver\r | |
245 | \r | |
246 | @retval EFI_SUCCESS The function completed successfully\r | |
247 | @retval EFI_ABORTED The function could not complete successfully.\r | |
248 | \r | |
249 | **/\r | |
250 | EFI_STATUS\r | |
251 | WorkSpaceRefresh (\r | |
252 | IN EFI_FTW_DEVICE *FtwDevice\r | |
253 | )\r | |
254 | {\r | |
255 | EFI_STATUS Status;\r | |
d379cbc7 | 256 | UINTN RemainingSpaceSize;\r |
85e923a5 LG |
257 | \r |
258 | //\r | |
259 | // Initialize WorkSpace as FTW_ERASED_BYTE\r | |
260 | //\r | |
261 | SetMem (\r | |
262 | FtwDevice->FtwWorkSpace,\r | |
263 | FtwDevice->FtwWorkSpaceSize,\r | |
264 | FTW_ERASED_BYTE\r | |
265 | );\r | |
266 | \r | |
267 | //\r | |
268 | // Read from working block\r | |
269 | //\r | |
0d3edd9d SZ |
270 | Status = ReadWorkSpaceData (\r |
271 | FtwDevice->FtwFvBlock,\r | |
272 | FtwDevice->WorkBlockSize,\r | |
273 | FtwDevice->FtwWorkSpaceLba,\r | |
274 | FtwDevice->FtwWorkSpaceBase,\r | |
275 | FtwDevice->FtwWorkSpaceSize,\r | |
276 | FtwDevice->FtwWorkSpace\r | |
277 | );\r | |
85e923a5 LG |
278 | if (EFI_ERROR (Status)) {\r |
279 | return EFI_ABORTED;\r | |
280 | }\r | |
281 | //\r | |
282 | // Refresh the FtwLastWriteHeader\r | |
283 | //\r | |
284 | Status = FtwGetLastWriteHeader (\r | |
285 | FtwDevice->FtwWorkSpaceHeader,\r | |
286 | FtwDevice->FtwWorkSpaceSize,\r | |
287 | &FtwDevice->FtwLastWriteHeader\r | |
288 | );\r | |
d379cbc7 SZ |
289 | RemainingSpaceSize = FtwDevice->FtwWorkSpaceSize - ((UINTN) FtwDevice->FtwLastWriteHeader - (UINTN) FtwDevice->FtwWorkSpace);\r |
290 | DEBUG ((EFI_D_INFO, "Ftw: Remaining work space size - %x\n", RemainingSpaceSize));\r | |
291 | //\r | |
292 | // If FtwGetLastWriteHeader() returns error, or the remaining space size is even not enough to contain\r | |
293 | // one EFI_FAULT_TOLERANT_WRITE_HEADER + one EFI_FAULT_TOLERANT_WRITE_RECORD(It will cause that the header\r | |
294 | // pointed by FtwDevice->FtwLastWriteHeader or record pointed by FtwDevice->FtwLastWriteRecord may contain invalid data),\r | |
295 | // it needs to reclaim work space.\r | |
296 | //\r | |
297 | if (EFI_ERROR (Status) || RemainingSpaceSize < sizeof (EFI_FAULT_TOLERANT_WRITE_HEADER) + sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD)) {\r | |
85e923a5 LG |
298 | //\r |
299 | // reclaim work space in working block.\r | |
300 | //\r | |
301 | Status = FtwReclaimWorkSpace (FtwDevice, TRUE);\r | |
302 | if (EFI_ERROR (Status)) {\r | |
303 | DEBUG ((EFI_D_ERROR, "Ftw: Reclaim workspace - %r\n", Status));\r | |
304 | return EFI_ABORTED;\r | |
305 | }\r | |
306 | //\r | |
307 | // Read from working block again\r | |
308 | //\r | |
0d3edd9d SZ |
309 | Status = ReadWorkSpaceData (\r |
310 | FtwDevice->FtwFvBlock,\r | |
311 | FtwDevice->WorkBlockSize,\r | |
312 | FtwDevice->FtwWorkSpaceLba,\r | |
313 | FtwDevice->FtwWorkSpaceBase,\r | |
314 | FtwDevice->FtwWorkSpaceSize,\r | |
315 | FtwDevice->FtwWorkSpace\r | |
316 | );\r | |
85e923a5 LG |
317 | if (EFI_ERROR (Status)) {\r |
318 | return EFI_ABORTED;\r | |
319 | }\r | |
320 | \r | |
321 | Status = FtwGetLastWriteHeader (\r | |
322 | FtwDevice->FtwWorkSpaceHeader,\r | |
323 | FtwDevice->FtwWorkSpaceSize,\r | |
324 | &FtwDevice->FtwLastWriteHeader\r | |
325 | );\r | |
d26c7e82 SZ |
326 | if (EFI_ERROR (Status)) {\r |
327 | return EFI_ABORTED;\r | |
328 | }\r | |
85e923a5 LG |
329 | }\r |
330 | //\r | |
331 | // Refresh the FtwLastWriteRecord\r | |
332 | //\r | |
333 | Status = FtwGetLastWriteRecord (\r | |
334 | FtwDevice->FtwLastWriteHeader,\r | |
335 | &FtwDevice->FtwLastWriteRecord\r | |
336 | );\r | |
337 | if (EFI_ERROR (Status)) {\r | |
338 | return EFI_ABORTED;\r | |
339 | }\r | |
340 | \r | |
341 | return EFI_SUCCESS;\r | |
342 | }\r | |
343 | \r | |
344 | /**\r | |
345 | Reclaim the work space on the working block.\r | |
346 | \r | |
347 | @param FtwDevice Point to private data of FTW driver\r | |
348 | @param PreserveRecord Whether to preserve the working record is needed\r | |
349 | \r | |
350 | @retval EFI_SUCCESS The function completed successfully\r | |
351 | @retval EFI_OUT_OF_RESOURCES Allocate memory error\r | |
352 | @retval EFI_ABORTED The function could not complete successfully\r | |
353 | \r | |
354 | **/\r | |
355 | EFI_STATUS\r | |
356 | FtwReclaimWorkSpace (\r | |
357 | IN EFI_FTW_DEVICE *FtwDevice,\r | |
358 | IN BOOLEAN PreserveRecord\r | |
359 | )\r | |
360 | {\r | |
361 | EFI_STATUS Status;\r | |
362 | UINTN Length;\r | |
363 | EFI_FAULT_TOLERANT_WRITE_HEADER *Header;\r | |
364 | UINT8 *TempBuffer;\r | |
365 | UINTN TempBufferSize;\r | |
366 | UINTN SpareBufferSize;\r | |
367 | UINT8 *SpareBuffer;\r | |
368 | EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingBlockHeader;\r | |
369 | UINTN Index;\r | |
370 | UINT8 *Ptr;\r | |
d26c7e82 | 371 | EFI_LBA WorkSpaceLbaOffset;\r |
85e923a5 | 372 | \r |
9a95972e | 373 | DEBUG ((EFI_D_INFO, "Ftw: start to reclaim work space\n"));\r |
85e923a5 | 374 | \r |
d26c7e82 SZ |
375 | WorkSpaceLbaOffset = FtwDevice->FtwWorkSpaceLba - FtwDevice->FtwWorkBlockLba;\r |
376 | \r | |
85e923a5 LG |
377 | //\r |
378 | // Read all original data from working block to a memory buffer\r | |
379 | //\r | |
0d3edd9d | 380 | TempBufferSize = FtwDevice->NumberOfWorkBlock * FtwDevice->WorkBlockSize;\r |
85e923a5 LG |
381 | TempBuffer = AllocateZeroPool (TempBufferSize);\r |
382 | if (TempBuffer == NULL) {\r | |
383 | return EFI_OUT_OF_RESOURCES;\r | |
384 | }\r | |
385 | \r | |
386 | Ptr = TempBuffer;\r | |
0d3edd9d SZ |
387 | for (Index = 0; Index < FtwDevice->NumberOfWorkBlock; Index += 1) {\r |
388 | Length = FtwDevice->WorkBlockSize;\r | |
85e923a5 LG |
389 | Status = FtwDevice->FtwFvBlock->Read (\r |
390 | FtwDevice->FtwFvBlock,\r | |
391 | FtwDevice->FtwWorkBlockLba + Index,\r | |
392 | 0,\r | |
393 | &Length,\r | |
394 | Ptr\r | |
395 | );\r | |
396 | if (EFI_ERROR (Status)) {\r | |
397 | FreePool (TempBuffer);\r | |
398 | return EFI_ABORTED;\r | |
399 | }\r | |
400 | \r | |
401 | Ptr += Length;\r | |
402 | }\r | |
403 | //\r | |
404 | // Clean up the workspace, remove all the completed records.\r | |
405 | //\r | |
406 | Ptr = TempBuffer +\r | |
0d3edd9d | 407 | (UINTN) WorkSpaceLbaOffset * FtwDevice->WorkBlockSize +\r |
85e923a5 LG |
408 | FtwDevice->FtwWorkSpaceBase;\r |
409 | \r | |
410 | //\r | |
411 | // Clear the content of buffer that will save the new work space data\r | |
412 | //\r | |
413 | SetMem (Ptr, FtwDevice->FtwWorkSpaceSize, FTW_ERASED_BYTE);\r | |
414 | \r | |
415 | //\r | |
416 | // Copy EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER to buffer\r | |
417 | //\r | |
418 | CopyMem (\r | |
419 | Ptr,\r | |
420 | FtwDevice->FtwWorkSpaceHeader,\r | |
421 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER)\r | |
422 | );\r | |
423 | if (PreserveRecord) {\r | |
424 | //\r | |
425 | // Get the last record following the header,\r | |
426 | //\r | |
427 | Status = FtwGetLastWriteHeader (\r | |
428 | FtwDevice->FtwWorkSpaceHeader,\r | |
429 | FtwDevice->FtwWorkSpaceSize,\r | |
430 | &FtwDevice->FtwLastWriteHeader\r | |
431 | );\r | |
432 | Header = FtwDevice->FtwLastWriteHeader;\r | |
8dc8879a | 433 | if (!EFI_ERROR (Status) && (Header != NULL) && (Header->Complete != FTW_VALID_STATE) && (Header->HeaderAllocated == FTW_VALID_STATE)) {\r |
85e923a5 LG |
434 | CopyMem (\r |
435 | Ptr + sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r | |
436 | FtwDevice->FtwLastWriteHeader,\r | |
3e02ebb2 | 437 | FTW_WRITE_TOTAL_SIZE (Header->NumberOfWrites, Header->PrivateDataSize)\r |
85e923a5 LG |
438 | );\r |
439 | }\r | |
440 | }\r | |
441 | \r | |
442 | CopyMem (\r | |
443 | FtwDevice->FtwWorkSpace,\r | |
444 | Ptr,\r | |
445 | FtwDevice->FtwWorkSpaceSize\r | |
446 | );\r | |
447 | \r | |
448 | FtwGetLastWriteHeader (\r | |
449 | FtwDevice->FtwWorkSpaceHeader,\r | |
450 | FtwDevice->FtwWorkSpaceSize,\r | |
451 | &FtwDevice->FtwLastWriteHeader\r | |
452 | );\r | |
453 | \r | |
d26c7e82 SZ |
454 | FtwGetLastWriteRecord (\r |
455 | FtwDevice->FtwLastWriteHeader,\r | |
456 | &FtwDevice->FtwLastWriteRecord\r | |
457 | );\r | |
458 | \r | |
85e923a5 LG |
459 | //\r |
460 | // Set the WorkingBlockValid and WorkingBlockInvalid as INVALID\r | |
461 | //\r | |
d26c7e82 | 462 | WorkingBlockHeader = (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *) (TempBuffer +\r |
0d3edd9d | 463 | (UINTN) WorkSpaceLbaOffset * FtwDevice->WorkBlockSize +\r |
d26c7e82 | 464 | FtwDevice->FtwWorkSpaceBase);\r |
85e923a5 LG |
465 | WorkingBlockHeader->WorkingBlockValid = FTW_INVALID_STATE;\r |
466 | WorkingBlockHeader->WorkingBlockInvalid = FTW_INVALID_STATE;\r | |
467 | \r | |
468 | //\r | |
469 | // Try to keep the content of spare block\r | |
470 | // Save spare block into a spare backup memory buffer (Sparebuffer)\r | |
471 | //\r | |
472 | SpareBufferSize = FtwDevice->SpareAreaLength;\r | |
473 | SpareBuffer = AllocatePool (SpareBufferSize);\r | |
474 | if (SpareBuffer == NULL) {\r | |
475 | FreePool (TempBuffer);\r | |
476 | return EFI_OUT_OF_RESOURCES;\r | |
477 | }\r | |
478 | \r | |
479 | Ptr = SpareBuffer;\r | |
480 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
0d3edd9d | 481 | Length = FtwDevice->SpareBlockSize;\r |
85e923a5 LG |
482 | Status = FtwDevice->FtwBackupFvb->Read (\r |
483 | FtwDevice->FtwBackupFvb,\r | |
484 | FtwDevice->FtwSpareLba + Index,\r | |
485 | 0,\r | |
486 | &Length,\r | |
487 | Ptr\r | |
488 | );\r | |
489 | if (EFI_ERROR (Status)) {\r | |
490 | FreePool (TempBuffer);\r | |
491 | FreePool (SpareBuffer);\r | |
492 | return EFI_ABORTED;\r | |
493 | }\r | |
494 | \r | |
495 | Ptr += Length;\r | |
496 | }\r | |
497 | //\r | |
498 | // Write the memory buffer to spare block\r | |
499 | //\r | |
500 | Status = FtwEraseSpareBlock (FtwDevice);\r | |
de2d7497 SZ |
501 | if (EFI_ERROR (Status)) {\r |
502 | FreePool (TempBuffer);\r | |
503 | FreePool (SpareBuffer);\r | |
504 | return EFI_ABORTED;\r | |
505 | }\r | |
85e923a5 | 506 | Ptr = TempBuffer;\r |
0d3edd9d SZ |
507 | for (Index = 0; TempBufferSize > 0; Index += 1) {\r |
508 | if (TempBufferSize > FtwDevice->SpareBlockSize) {\r | |
509 | Length = FtwDevice->SpareBlockSize;\r | |
510 | } else {\r | |
511 | Length = TempBufferSize;\r | |
512 | }\r | |
85e923a5 LG |
513 | Status = FtwDevice->FtwBackupFvb->Write (\r |
514 | FtwDevice->FtwBackupFvb,\r | |
515 | FtwDevice->FtwSpareLba + Index,\r | |
516 | 0,\r | |
517 | &Length,\r | |
518 | Ptr\r | |
519 | );\r | |
520 | if (EFI_ERROR (Status)) {\r | |
521 | FreePool (TempBuffer);\r | |
522 | FreePool (SpareBuffer);\r | |
523 | return EFI_ABORTED;\r | |
524 | }\r | |
525 | \r | |
526 | Ptr += Length;\r | |
0d3edd9d | 527 | TempBufferSize -= Length;\r |
85e923a5 LG |
528 | }\r |
529 | //\r | |
530 | // Free TempBuffer\r | |
531 | //\r | |
532 | FreePool (TempBuffer);\r | |
533 | \r | |
534 | //\r | |
535 | // Set the WorkingBlockValid in spare block\r | |
536 | //\r | |
537 | Status = FtwUpdateFvState (\r | |
538 | FtwDevice->FtwBackupFvb,\r | |
0d3edd9d SZ |
539 | FtwDevice->SpareBlockSize,\r |
540 | FtwDevice->FtwSpareLba + FtwDevice->FtwWorkSpaceLbaInSpare,\r | |
541 | FtwDevice->FtwWorkSpaceBaseInSpare + sizeof (EFI_GUID) + sizeof (UINT32),\r | |
85e923a5 LG |
542 | WORKING_BLOCK_VALID\r |
543 | );\r | |
544 | if (EFI_ERROR (Status)) {\r | |
545 | FreePool (SpareBuffer);\r | |
546 | return EFI_ABORTED;\r | |
547 | }\r | |
548 | //\r | |
549 | // Before erase the working block, set WorkingBlockInvalid in working block.\r | |
550 | //\r | |
551 | // Offset = OFFSET_OF(EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER,\r | |
552 | // WorkingBlockInvalid);\r | |
553 | //\r | |
554 | Status = FtwUpdateFvState (\r | |
555 | FtwDevice->FtwFvBlock,\r | |
0d3edd9d | 556 | FtwDevice->WorkBlockSize,\r |
85e923a5 LG |
557 | FtwDevice->FtwWorkSpaceLba,\r |
558 | FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r | |
559 | WORKING_BLOCK_INVALID\r | |
560 | );\r | |
561 | if (EFI_ERROR (Status)) {\r | |
562 | FreePool (SpareBuffer);\r | |
563 | return EFI_ABORTED;\r | |
564 | }\r | |
565 | \r | |
566 | FtwDevice->FtwWorkSpaceHeader->WorkingBlockInvalid = FTW_VALID_STATE;\r | |
567 | \r | |
568 | //\r | |
569 | // Write the spare block to working block\r | |
570 | //\r | |
571 | Status = FlushSpareBlockToWorkingBlock (FtwDevice);\r | |
572 | if (EFI_ERROR (Status)) {\r | |
573 | FreePool (SpareBuffer);\r | |
574 | return Status;\r | |
575 | }\r | |
576 | //\r | |
577 | // Restore spare backup buffer into spare block , if no failure happened during FtwWrite.\r | |
578 | //\r | |
579 | Status = FtwEraseSpareBlock (FtwDevice);\r | |
de2d7497 SZ |
580 | if (EFI_ERROR (Status)) {\r |
581 | FreePool (SpareBuffer);\r | |
582 | return EFI_ABORTED;\r | |
583 | }\r | |
85e923a5 LG |
584 | Ptr = SpareBuffer;\r |
585 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
0d3edd9d | 586 | Length = FtwDevice->SpareBlockSize;\r |
85e923a5 LG |
587 | Status = FtwDevice->FtwBackupFvb->Write (\r |
588 | FtwDevice->FtwBackupFvb,\r | |
589 | FtwDevice->FtwSpareLba + Index,\r | |
590 | 0,\r | |
591 | &Length,\r | |
592 | Ptr\r | |
593 | );\r | |
594 | if (EFI_ERROR (Status)) {\r | |
595 | FreePool (SpareBuffer);\r | |
596 | return EFI_ABORTED;\r | |
597 | }\r | |
598 | \r | |
599 | Ptr += Length;\r | |
600 | }\r | |
601 | \r | |
602 | FreePool (SpareBuffer);\r | |
603 | \r | |
9a95972e | 604 | DEBUG ((EFI_D_INFO, "Ftw: reclaim work space successfully\n"));\r |
85e923a5 LG |
605 | \r |
606 | return EFI_SUCCESS;\r | |
607 | }\r |