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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 LG |
5 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
85e923a5 LG |
13 | \r |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | #include "FaultTolerantWrite.h"\r | |
18 | \r | |
05cfd5f2 | 19 | EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER mWorkingBlockHeader = {ZERO_GUID, 0, 0, 0, 0, {0, 0, 0}, 0};\r |
85e923a5 | 20 | \r |
05cfd5f2 SZ |
21 | /**\r |
22 | Initialize a local work space header.\r | |
85e923a5 | 23 | \r |
05cfd5f2 SZ |
24 | Since Signature and WriteQueueSize have been known, Crc can be calculated out,\r |
25 | then the work space header will be fixed.\r | |
85e923a5 | 26 | **/\r |
05cfd5f2 SZ |
27 | VOID\r |
28 | InitializeLocalWorkSpaceHeader (\r | |
29 | VOID\r | |
85e923a5 LG |
30 | )\r |
31 | {\r | |
85e923a5 | 32 | //\r |
3e02ebb2 | 33 | // Check signature with gEdkiiWorkingBlockSignatureGuid.\r |
85e923a5 | 34 | //\r |
3e02ebb2 | 35 | if (CompareGuid (&gEdkiiWorkingBlockSignatureGuid, &mWorkingBlockHeader.Signature)) {\r |
05cfd5f2 SZ |
36 | //\r |
37 | // The local work space header has been initialized.\r | |
38 | //\r | |
39 | return;\r | |
85e923a5 | 40 | }\r |
05cfd5f2 SZ |
41 | \r |
42 | SetMem (\r | |
43 | &mWorkingBlockHeader,\r | |
44 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r | |
45 | FTW_ERASED_BYTE\r | |
46 | );\r | |
47 | \r | |
85e923a5 | 48 | //\r |
3e02ebb2 | 49 | // Here using gEdkiiWorkingBlockSignatureGuid as the signature.\r |
85e923a5 LG |
50 | //\r |
51 | CopyMem (\r | |
05cfd5f2 | 52 | &mWorkingBlockHeader.Signature,\r |
3e02ebb2 | 53 | &gEdkiiWorkingBlockSignatureGuid,\r |
05cfd5f2 | 54 | sizeof (EFI_GUID)\r |
85e923a5 | 55 | );\r |
16f69227 | 56 | mWorkingBlockHeader.WriteQueueSize = PcdGet32 (PcdFlashNvStorageFtwWorkingSize) - sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER);\r |
85e923a5 LG |
57 | \r |
58 | //\r | |
05cfd5f2 | 59 | // Crc is calculated with all the fields except Crc and STATE, so leave them as FTW_ERASED_BYTE.\r |
85e923a5 | 60 | //\r |
85e923a5 LG |
61 | \r |
62 | //\r | |
63 | // Calculate the Crc of woking block header\r | |
64 | //\r | |
22cedf5b AB |
65 | mWorkingBlockHeader.Crc = FtwCalculateCrc32 (&mWorkingBlockHeader,\r |
66 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));\r | |
05cfd5f2 SZ |
67 | \r |
68 | mWorkingBlockHeader.WorkingBlockValid = FTW_VALID_STATE;\r | |
69 | mWorkingBlockHeader.WorkingBlockInvalid = FTW_INVALID_STATE;\r | |
70 | }\r | |
71 | \r | |
72 | /**\r | |
73 | Check to see if it is a valid work space.\r | |
74 | \r | |
75 | \r | |
76 | @param WorkingHeader Pointer of working block header\r | |
77 | \r | |
78 | @retval TRUE The work space is valid.\r | |
79 | @retval FALSE The work space is invalid.\r | |
80 | \r | |
81 | **/\r | |
82 | BOOLEAN\r | |
83 | IsValidWorkSpace (\r | |
84 | IN EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingHeader\r | |
85 | )\r | |
86 | {\r | |
87 | if (WorkingHeader == NULL) {\r | |
85e923a5 LG |
88 | return FALSE;\r |
89 | }\r | |
90 | \r | |
05cfd5f2 SZ |
91 | if (CompareMem (WorkingHeader, &mWorkingBlockHeader, sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER)) == 0) {\r |
92 | return TRUE;\r | |
85e923a5 LG |
93 | }\r |
94 | \r | |
8a4b2435 | 95 | DEBUG ((EFI_D_INFO, "Ftw: Work block header check mismatch\n"));\r |
05cfd5f2 | 96 | return FALSE;\r |
85e923a5 LG |
97 | }\r |
98 | \r | |
99 | /**\r | |
100 | Initialize a work space when there is no work space.\r | |
101 | \r | |
102 | @param WorkingHeader Pointer of working block header\r | |
103 | \r | |
104 | @retval EFI_SUCCESS The function completed successfully\r | |
105 | @retval EFI_ABORTED The function could not complete successfully.\r | |
106 | \r | |
107 | **/\r | |
108 | EFI_STATUS\r | |
109 | InitWorkSpaceHeader (\r | |
110 | IN EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingHeader\r | |
111 | )\r | |
112 | {\r | |
85e923a5 LG |
113 | if (WorkingHeader == NULL) {\r |
114 | return EFI_INVALID_PARAMETER;\r | |
115 | }\r | |
85e923a5 | 116 | \r |
05cfd5f2 | 117 | CopyMem (WorkingHeader, &mWorkingBlockHeader, sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));\r |
85e923a5 LG |
118 | \r |
119 | return EFI_SUCCESS;\r | |
120 | }\r | |
121 | \r | |
0d3edd9d SZ |
122 | /**\r |
123 | Read work space data from work block or spare block.\r | |
124 | \r | |
0d3edd9d SZ |
125 | @param FvBlock FVB Protocol interface to access the block.\r |
126 | @param BlockSize The size of the block.\r | |
127 | @param Lba Lba of the block.\r | |
128 | @param Offset The offset within the block.\r | |
129 | @param Length The number of bytes to read from the block.\r | |
130 | @param Buffer The data is read.\r | |
131 | \r | |
132 | @retval EFI_SUCCESS The function completed successfully.\r | |
133 | @retval EFI_ABORTED The function could not complete successfully.\r | |
134 | \r | |
135 | **/\r | |
136 | EFI_STATUS\r | |
137 | ReadWorkSpaceData (\r | |
138 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r | |
139 | IN UINTN BlockSize,\r | |
140 | IN EFI_LBA Lba,\r | |
141 | IN UINTN Offset,\r | |
142 | IN UINTN Length,\r | |
143 | OUT UINT8 *Buffer\r | |
144 | )\r | |
145 | {\r | |
146 | EFI_STATUS Status;\r | |
147 | UINT8 *Ptr;\r | |
148 | UINTN MyLength;\r | |
149 | \r | |
150 | //\r | |
151 | // Calculate the real Offset and Lba to write.\r | |
152 | //\r | |
153 | while (Offset >= BlockSize) {\r | |
154 | Offset -= BlockSize;\r | |
155 | Lba++;\r | |
156 | }\r | |
157 | \r | |
158 | Ptr = Buffer;\r | |
159 | while (Length > 0) {\r | |
160 | if ((Offset + Length) > BlockSize) {\r | |
161 | MyLength = BlockSize - Offset;\r | |
162 | } else {\r | |
163 | MyLength = Length;\r | |
164 | }\r | |
165 | \r | |
166 | Status = FvBlock->Read (\r | |
167 | FvBlock,\r | |
168 | Lba,\r | |
169 | Offset,\r | |
170 | &MyLength,\r | |
171 | Ptr\r | |
172 | );\r | |
173 | if (EFI_ERROR (Status)) {\r | |
174 | return EFI_ABORTED;\r | |
175 | }\r | |
176 | Offset = 0;\r | |
177 | Length -= MyLength;\r | |
178 | Ptr += MyLength;\r | |
179 | Lba++;\r | |
180 | }\r | |
181 | \r | |
182 | return EFI_SUCCESS;\r | |
183 | }\r | |
184 | \r | |
185 | /**\r | |
186 | Write work space data to work block.\r | |
187 | \r | |
188 | @param FvBlock FVB Protocol interface to access the block.\r | |
189 | @param BlockSize The size of the block.\r | |
190 | @param Lba Lba of the block.\r | |
191 | @param Offset The offset within the block to place the data.\r | |
192 | @param Length The number of bytes to write to the block.\r | |
193 | @param Buffer The data to write.\r | |
194 | \r | |
195 | @retval EFI_SUCCESS The function completed successfully.\r | |
196 | @retval EFI_ABORTED The function could not complete successfully.\r | |
197 | \r | |
198 | **/\r | |
199 | EFI_STATUS\r | |
200 | WriteWorkSpaceData (\r | |
201 | IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,\r | |
202 | IN UINTN BlockSize,\r | |
203 | IN EFI_LBA Lba,\r | |
204 | IN UINTN Offset,\r | |
205 | IN UINTN Length,\r | |
206 | IN UINT8 *Buffer\r | |
207 | )\r | |
208 | {\r | |
209 | EFI_STATUS Status;\r | |
210 | UINT8 *Ptr;\r | |
211 | UINTN MyLength;\r | |
212 | \r | |
213 | //\r | |
214 | // Calculate the real Offset and Lba to write.\r | |
215 | //\r | |
216 | while (Offset >= BlockSize) {\r | |
217 | Offset -= BlockSize;\r | |
218 | Lba++;\r | |
219 | }\r | |
220 | \r | |
221 | Ptr = Buffer;\r | |
222 | while (Length > 0) {\r | |
223 | if ((Offset + Length) > BlockSize) {\r | |
224 | MyLength = BlockSize - Offset;\r | |
225 | } else {\r | |
226 | MyLength = Length;\r | |
227 | }\r | |
228 | \r | |
229 | Status = FvBlock->Write (\r | |
230 | FvBlock,\r | |
231 | Lba,\r | |
232 | Offset,\r | |
233 | &MyLength,\r | |
234 | Ptr\r | |
235 | );\r | |
236 | if (EFI_ERROR (Status)) {\r | |
237 | return EFI_ABORTED;\r | |
238 | }\r | |
239 | Offset = 0;\r | |
240 | Length -= MyLength;\r | |
241 | Ptr += MyLength;\r | |
242 | Lba++;\r | |
243 | }\r | |
244 | return EFI_SUCCESS;\r | |
245 | }\r | |
246 | \r | |
85e923a5 LG |
247 | /**\r |
248 | Read from working block to refresh the work space in memory.\r | |
249 | \r | |
250 | @param FtwDevice Point to private data of FTW driver\r | |
251 | \r | |
252 | @retval EFI_SUCCESS The function completed successfully\r | |
253 | @retval EFI_ABORTED The function could not complete successfully.\r | |
254 | \r | |
255 | **/\r | |
256 | EFI_STATUS\r | |
257 | WorkSpaceRefresh (\r | |
258 | IN EFI_FTW_DEVICE *FtwDevice\r | |
259 | )\r | |
260 | {\r | |
261 | EFI_STATUS Status;\r | |
d379cbc7 | 262 | UINTN RemainingSpaceSize;\r |
85e923a5 LG |
263 | \r |
264 | //\r | |
265 | // Initialize WorkSpace as FTW_ERASED_BYTE\r | |
266 | //\r | |
267 | SetMem (\r | |
268 | FtwDevice->FtwWorkSpace,\r | |
269 | FtwDevice->FtwWorkSpaceSize,\r | |
270 | FTW_ERASED_BYTE\r | |
271 | );\r | |
272 | \r | |
273 | //\r | |
274 | // Read from working block\r | |
275 | //\r | |
0d3edd9d SZ |
276 | Status = ReadWorkSpaceData (\r |
277 | FtwDevice->FtwFvBlock,\r | |
278 | FtwDevice->WorkBlockSize,\r | |
279 | FtwDevice->FtwWorkSpaceLba,\r | |
280 | FtwDevice->FtwWorkSpaceBase,\r | |
281 | FtwDevice->FtwWorkSpaceSize,\r | |
282 | FtwDevice->FtwWorkSpace\r | |
283 | );\r | |
85e923a5 LG |
284 | if (EFI_ERROR (Status)) {\r |
285 | return EFI_ABORTED;\r | |
286 | }\r | |
287 | //\r | |
288 | // Refresh the FtwLastWriteHeader\r | |
289 | //\r | |
290 | Status = FtwGetLastWriteHeader (\r | |
291 | FtwDevice->FtwWorkSpaceHeader,\r | |
292 | FtwDevice->FtwWorkSpaceSize,\r | |
293 | &FtwDevice->FtwLastWriteHeader\r | |
294 | );\r | |
d379cbc7 SZ |
295 | RemainingSpaceSize = FtwDevice->FtwWorkSpaceSize - ((UINTN) FtwDevice->FtwLastWriteHeader - (UINTN) FtwDevice->FtwWorkSpace);\r |
296 | DEBUG ((EFI_D_INFO, "Ftw: Remaining work space size - %x\n", RemainingSpaceSize));\r | |
297 | //\r | |
298 | // If FtwGetLastWriteHeader() returns error, or the remaining space size is even not enough to contain\r | |
299 | // one EFI_FAULT_TOLERANT_WRITE_HEADER + one EFI_FAULT_TOLERANT_WRITE_RECORD(It will cause that the header\r | |
300 | // pointed by FtwDevice->FtwLastWriteHeader or record pointed by FtwDevice->FtwLastWriteRecord may contain invalid data),\r | |
301 | // it needs to reclaim work space.\r | |
302 | //\r | |
303 | if (EFI_ERROR (Status) || RemainingSpaceSize < sizeof (EFI_FAULT_TOLERANT_WRITE_HEADER) + sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD)) {\r | |
85e923a5 LG |
304 | //\r |
305 | // reclaim work space in working block.\r | |
306 | //\r | |
307 | Status = FtwReclaimWorkSpace (FtwDevice, TRUE);\r | |
308 | if (EFI_ERROR (Status)) {\r | |
309 | DEBUG ((EFI_D_ERROR, "Ftw: Reclaim workspace - %r\n", Status));\r | |
310 | return EFI_ABORTED;\r | |
311 | }\r | |
312 | //\r | |
313 | // Read from working block again\r | |
314 | //\r | |
0d3edd9d SZ |
315 | Status = ReadWorkSpaceData (\r |
316 | FtwDevice->FtwFvBlock,\r | |
317 | FtwDevice->WorkBlockSize,\r | |
318 | FtwDevice->FtwWorkSpaceLba,\r | |
319 | FtwDevice->FtwWorkSpaceBase,\r | |
320 | FtwDevice->FtwWorkSpaceSize,\r | |
321 | FtwDevice->FtwWorkSpace\r | |
322 | );\r | |
85e923a5 LG |
323 | if (EFI_ERROR (Status)) {\r |
324 | return EFI_ABORTED;\r | |
325 | }\r | |
326 | \r | |
327 | Status = FtwGetLastWriteHeader (\r | |
328 | FtwDevice->FtwWorkSpaceHeader,\r | |
329 | FtwDevice->FtwWorkSpaceSize,\r | |
330 | &FtwDevice->FtwLastWriteHeader\r | |
331 | );\r | |
d26c7e82 SZ |
332 | if (EFI_ERROR (Status)) {\r |
333 | return EFI_ABORTED;\r | |
334 | }\r | |
85e923a5 LG |
335 | }\r |
336 | //\r | |
337 | // Refresh the FtwLastWriteRecord\r | |
338 | //\r | |
339 | Status = FtwGetLastWriteRecord (\r | |
340 | FtwDevice->FtwLastWriteHeader,\r | |
341 | &FtwDevice->FtwLastWriteRecord\r | |
342 | );\r | |
343 | if (EFI_ERROR (Status)) {\r | |
344 | return EFI_ABORTED;\r | |
345 | }\r | |
346 | \r | |
347 | return EFI_SUCCESS;\r | |
348 | }\r | |
349 | \r | |
350 | /**\r | |
351 | Reclaim the work space on the working block.\r | |
352 | \r | |
353 | @param FtwDevice Point to private data of FTW driver\r | |
354 | @param PreserveRecord Whether to preserve the working record is needed\r | |
355 | \r | |
356 | @retval EFI_SUCCESS The function completed successfully\r | |
357 | @retval EFI_OUT_OF_RESOURCES Allocate memory error\r | |
358 | @retval EFI_ABORTED The function could not complete successfully\r | |
359 | \r | |
360 | **/\r | |
361 | EFI_STATUS\r | |
362 | FtwReclaimWorkSpace (\r | |
363 | IN EFI_FTW_DEVICE *FtwDevice,\r | |
364 | IN BOOLEAN PreserveRecord\r | |
365 | )\r | |
366 | {\r | |
367 | EFI_STATUS Status;\r | |
368 | UINTN Length;\r | |
369 | EFI_FAULT_TOLERANT_WRITE_HEADER *Header;\r | |
370 | UINT8 *TempBuffer;\r | |
371 | UINTN TempBufferSize;\r | |
372 | UINTN SpareBufferSize;\r | |
373 | UINT8 *SpareBuffer;\r | |
374 | EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingBlockHeader;\r | |
375 | UINTN Index;\r | |
376 | UINT8 *Ptr;\r | |
d26c7e82 | 377 | EFI_LBA WorkSpaceLbaOffset;\r |
85e923a5 | 378 | \r |
9a95972e | 379 | DEBUG ((EFI_D_INFO, "Ftw: start to reclaim work space\n"));\r |
85e923a5 | 380 | \r |
d26c7e82 SZ |
381 | WorkSpaceLbaOffset = FtwDevice->FtwWorkSpaceLba - FtwDevice->FtwWorkBlockLba;\r |
382 | \r | |
85e923a5 LG |
383 | //\r |
384 | // Read all original data from working block to a memory buffer\r | |
385 | //\r | |
0d3edd9d | 386 | TempBufferSize = FtwDevice->NumberOfWorkBlock * FtwDevice->WorkBlockSize;\r |
85e923a5 LG |
387 | TempBuffer = AllocateZeroPool (TempBufferSize);\r |
388 | if (TempBuffer == NULL) {\r | |
389 | return EFI_OUT_OF_RESOURCES;\r | |
390 | }\r | |
391 | \r | |
392 | Ptr = TempBuffer;\r | |
0d3edd9d SZ |
393 | for (Index = 0; Index < FtwDevice->NumberOfWorkBlock; Index += 1) {\r |
394 | Length = FtwDevice->WorkBlockSize;\r | |
85e923a5 LG |
395 | Status = FtwDevice->FtwFvBlock->Read (\r |
396 | FtwDevice->FtwFvBlock,\r | |
397 | FtwDevice->FtwWorkBlockLba + Index,\r | |
398 | 0,\r | |
399 | &Length,\r | |
400 | Ptr\r | |
401 | );\r | |
402 | if (EFI_ERROR (Status)) {\r | |
403 | FreePool (TempBuffer);\r | |
404 | return EFI_ABORTED;\r | |
405 | }\r | |
406 | \r | |
407 | Ptr += Length;\r | |
408 | }\r | |
409 | //\r | |
410 | // Clean up the workspace, remove all the completed records.\r | |
411 | //\r | |
412 | Ptr = TempBuffer +\r | |
0d3edd9d | 413 | (UINTN) WorkSpaceLbaOffset * FtwDevice->WorkBlockSize +\r |
85e923a5 LG |
414 | FtwDevice->FtwWorkSpaceBase;\r |
415 | \r | |
416 | //\r | |
417 | // Clear the content of buffer that will save the new work space data\r | |
418 | //\r | |
419 | SetMem (Ptr, FtwDevice->FtwWorkSpaceSize, FTW_ERASED_BYTE);\r | |
420 | \r | |
421 | //\r | |
422 | // Copy EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER to buffer\r | |
423 | //\r | |
424 | CopyMem (\r | |
425 | Ptr,\r | |
426 | FtwDevice->FtwWorkSpaceHeader,\r | |
427 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER)\r | |
428 | );\r | |
429 | if (PreserveRecord) {\r | |
430 | //\r | |
431 | // Get the last record following the header,\r | |
432 | //\r | |
433 | Status = FtwGetLastWriteHeader (\r | |
434 | FtwDevice->FtwWorkSpaceHeader,\r | |
435 | FtwDevice->FtwWorkSpaceSize,\r | |
436 | &FtwDevice->FtwLastWriteHeader\r | |
437 | );\r | |
438 | Header = FtwDevice->FtwLastWriteHeader;\r | |
8dc8879a | 439 | if (!EFI_ERROR (Status) && (Header != NULL) && (Header->Complete != FTW_VALID_STATE) && (Header->HeaderAllocated == FTW_VALID_STATE)) {\r |
85e923a5 LG |
440 | CopyMem (\r |
441 | Ptr + sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r | |
442 | FtwDevice->FtwLastWriteHeader,\r | |
3e02ebb2 | 443 | FTW_WRITE_TOTAL_SIZE (Header->NumberOfWrites, Header->PrivateDataSize)\r |
85e923a5 LG |
444 | );\r |
445 | }\r | |
446 | }\r | |
447 | \r | |
448 | CopyMem (\r | |
449 | FtwDevice->FtwWorkSpace,\r | |
450 | Ptr,\r | |
451 | FtwDevice->FtwWorkSpaceSize\r | |
452 | );\r | |
453 | \r | |
454 | FtwGetLastWriteHeader (\r | |
455 | FtwDevice->FtwWorkSpaceHeader,\r | |
456 | FtwDevice->FtwWorkSpaceSize,\r | |
457 | &FtwDevice->FtwLastWriteHeader\r | |
458 | );\r | |
459 | \r | |
d26c7e82 SZ |
460 | FtwGetLastWriteRecord (\r |
461 | FtwDevice->FtwLastWriteHeader,\r | |
462 | &FtwDevice->FtwLastWriteRecord\r | |
463 | );\r | |
464 | \r | |
85e923a5 LG |
465 | //\r |
466 | // Set the WorkingBlockValid and WorkingBlockInvalid as INVALID\r | |
467 | //\r | |
d26c7e82 | 468 | WorkingBlockHeader = (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *) (TempBuffer +\r |
0d3edd9d | 469 | (UINTN) WorkSpaceLbaOffset * FtwDevice->WorkBlockSize +\r |
d26c7e82 | 470 | FtwDevice->FtwWorkSpaceBase);\r |
85e923a5 LG |
471 | WorkingBlockHeader->WorkingBlockValid = FTW_INVALID_STATE;\r |
472 | WorkingBlockHeader->WorkingBlockInvalid = FTW_INVALID_STATE;\r | |
473 | \r | |
474 | //\r | |
475 | // Try to keep the content of spare block\r | |
476 | // Save spare block into a spare backup memory buffer (Sparebuffer)\r | |
477 | //\r | |
478 | SpareBufferSize = FtwDevice->SpareAreaLength;\r | |
479 | SpareBuffer = AllocatePool (SpareBufferSize);\r | |
480 | if (SpareBuffer == NULL) {\r | |
481 | FreePool (TempBuffer);\r | |
482 | return EFI_OUT_OF_RESOURCES;\r | |
483 | }\r | |
484 | \r | |
485 | Ptr = SpareBuffer;\r | |
486 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
0d3edd9d | 487 | Length = FtwDevice->SpareBlockSize;\r |
85e923a5 LG |
488 | Status = FtwDevice->FtwBackupFvb->Read (\r |
489 | FtwDevice->FtwBackupFvb,\r | |
490 | FtwDevice->FtwSpareLba + Index,\r | |
491 | 0,\r | |
492 | &Length,\r | |
493 | Ptr\r | |
494 | );\r | |
495 | if (EFI_ERROR (Status)) {\r | |
496 | FreePool (TempBuffer);\r | |
497 | FreePool (SpareBuffer);\r | |
498 | return EFI_ABORTED;\r | |
499 | }\r | |
500 | \r | |
501 | Ptr += Length;\r | |
502 | }\r | |
503 | //\r | |
504 | // Write the memory buffer to spare block\r | |
505 | //\r | |
506 | Status = FtwEraseSpareBlock (FtwDevice);\r | |
de2d7497 SZ |
507 | if (EFI_ERROR (Status)) {\r |
508 | FreePool (TempBuffer);\r | |
509 | FreePool (SpareBuffer);\r | |
510 | return EFI_ABORTED;\r | |
511 | }\r | |
85e923a5 | 512 | Ptr = TempBuffer;\r |
0d3edd9d SZ |
513 | for (Index = 0; TempBufferSize > 0; Index += 1) {\r |
514 | if (TempBufferSize > FtwDevice->SpareBlockSize) {\r | |
515 | Length = FtwDevice->SpareBlockSize;\r | |
516 | } else {\r | |
517 | Length = TempBufferSize;\r | |
518 | }\r | |
85e923a5 LG |
519 | Status = FtwDevice->FtwBackupFvb->Write (\r |
520 | FtwDevice->FtwBackupFvb,\r | |
521 | FtwDevice->FtwSpareLba + Index,\r | |
522 | 0,\r | |
523 | &Length,\r | |
524 | Ptr\r | |
525 | );\r | |
526 | if (EFI_ERROR (Status)) {\r | |
527 | FreePool (TempBuffer);\r | |
528 | FreePool (SpareBuffer);\r | |
529 | return EFI_ABORTED;\r | |
530 | }\r | |
531 | \r | |
532 | Ptr += Length;\r | |
0d3edd9d | 533 | TempBufferSize -= Length;\r |
85e923a5 LG |
534 | }\r |
535 | //\r | |
536 | // Free TempBuffer\r | |
537 | //\r | |
538 | FreePool (TempBuffer);\r | |
539 | \r | |
540 | //\r | |
541 | // Set the WorkingBlockValid in spare block\r | |
542 | //\r | |
543 | Status = FtwUpdateFvState (\r | |
544 | FtwDevice->FtwBackupFvb,\r | |
0d3edd9d SZ |
545 | FtwDevice->SpareBlockSize,\r |
546 | FtwDevice->FtwSpareLba + FtwDevice->FtwWorkSpaceLbaInSpare,\r | |
547 | FtwDevice->FtwWorkSpaceBaseInSpare + sizeof (EFI_GUID) + sizeof (UINT32),\r | |
85e923a5 LG |
548 | WORKING_BLOCK_VALID\r |
549 | );\r | |
550 | if (EFI_ERROR (Status)) {\r | |
551 | FreePool (SpareBuffer);\r | |
552 | return EFI_ABORTED;\r | |
553 | }\r | |
554 | //\r | |
555 | // Before erase the working block, set WorkingBlockInvalid in working block.\r | |
556 | //\r | |
557 | // Offset = OFFSET_OF(EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER,\r | |
558 | // WorkingBlockInvalid);\r | |
559 | //\r | |
560 | Status = FtwUpdateFvState (\r | |
561 | FtwDevice->FtwFvBlock,\r | |
0d3edd9d | 562 | FtwDevice->WorkBlockSize,\r |
85e923a5 LG |
563 | FtwDevice->FtwWorkSpaceLba,\r |
564 | FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r | |
565 | WORKING_BLOCK_INVALID\r | |
566 | );\r | |
567 | if (EFI_ERROR (Status)) {\r | |
568 | FreePool (SpareBuffer);\r | |
569 | return EFI_ABORTED;\r | |
570 | }\r | |
571 | \r | |
572 | FtwDevice->FtwWorkSpaceHeader->WorkingBlockInvalid = FTW_VALID_STATE;\r | |
573 | \r | |
574 | //\r | |
575 | // Write the spare block to working block\r | |
576 | //\r | |
577 | Status = FlushSpareBlockToWorkingBlock (FtwDevice);\r | |
578 | if (EFI_ERROR (Status)) {\r | |
579 | FreePool (SpareBuffer);\r | |
580 | return Status;\r | |
581 | }\r | |
582 | //\r | |
583 | // Restore spare backup buffer into spare block , if no failure happened during FtwWrite.\r | |
584 | //\r | |
585 | Status = FtwEraseSpareBlock (FtwDevice);\r | |
de2d7497 SZ |
586 | if (EFI_ERROR (Status)) {\r |
587 | FreePool (SpareBuffer);\r | |
588 | return EFI_ABORTED;\r | |
589 | }\r | |
85e923a5 LG |
590 | Ptr = SpareBuffer;\r |
591 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
0d3edd9d | 592 | Length = FtwDevice->SpareBlockSize;\r |
85e923a5 LG |
593 | Status = FtwDevice->FtwBackupFvb->Write (\r |
594 | FtwDevice->FtwBackupFvb,\r | |
595 | FtwDevice->FtwSpareLba + Index,\r | |
596 | 0,\r | |
597 | &Length,\r | |
598 | Ptr\r | |
599 | );\r | |
600 | if (EFI_ERROR (Status)) {\r | |
601 | FreePool (SpareBuffer);\r | |
602 | return EFI_ABORTED;\r | |
603 | }\r | |
604 | \r | |
605 | Ptr += Length;\r | |
606 | }\r | |
607 | \r | |
608 | FreePool (SpareBuffer);\r | |
609 | \r | |
9a95972e | 610 | DEBUG ((EFI_D_INFO, "Ftw: reclaim work space successfully\n"));\r |
85e923a5 LG |
611 | \r |
612 | return EFI_SUCCESS;\r | |
613 | }\r |