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30c00a1c | 1 | /** @file\r |
2 | Source file for CD recovery PEIM\r | |
3 | \r | |
4 | Copyright (c) 2006 - 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 "PeiCdExpress.h"\r | |
18 | \r | |
19 | PEI_CD_EXPRESS_PRIVATE_DATA *mPrivateData = NULL;\r | |
20 | \r | |
21 | /**\r | |
22 | Installs the Device Recovery Module PPI, Initialize BlockIo Ppi \r | |
23 | installation notification\r | |
24 | \r | |
25 | @param FileHandle The file handle of the image.\r | |
26 | @param PeiServices General purpose services available to every PEIM.\r | |
27 | \r | |
28 | @retval EFI_SUCCESS The function completed successfully.\r | |
29 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory.\r | |
30 | \r | |
31 | **/\r | |
32 | EFI_STATUS\r | |
33 | EFIAPI\r | |
34 | CdExpressPeimEntry (\r | |
35 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
36 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
37 | )\r | |
38 | {\r | |
39 | EFI_STATUS Status;\r | |
40 | PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;\r | |
41 | \r | |
42 | if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {\r | |
43 | return EFI_SUCCESS;\r | |
44 | }\r | |
45 | \r | |
46 | PrivateData = AllocatePages (EFI_SIZE_TO_PAGES (sizeof (*PrivateData)));\r | |
47 | if (PrivateData == NULL) {\r | |
48 | return EFI_OUT_OF_RESOURCES;\r | |
49 | }\r | |
50 | \r | |
51 | //\r | |
52 | // Initialize Private Data (to zero, as is required by subsequent operations)\r | |
53 | //\r | |
54 | ZeroMem (PrivateData, sizeof (*PrivateData));\r | |
55 | PrivateData->Signature = PEI_CD_EXPRESS_PRIVATE_DATA_SIGNATURE;\r | |
56 | \r | |
57 | PrivateData->BlockBuffer = AllocatePages (EFI_SIZE_TO_PAGES (PEI_CD_BLOCK_SIZE));\r | |
58 | if (PrivateData->BlockBuffer == NULL) {\r | |
59 | return EFI_OUT_OF_RESOURCES;\r | |
60 | }\r | |
61 | \r | |
62 | PrivateData->CapsuleCount = 0;\r | |
63 | Status = UpdateBlocksAndVolumes (PrivateData);\r | |
64 | \r | |
65 | //\r | |
66 | // Installs Ppi\r | |
67 | //\r | |
68 | PrivateData->DeviceRecoveryPpi.GetNumberRecoveryCapsules = GetNumberRecoveryCapsules;\r | |
69 | PrivateData->DeviceRecoveryPpi.GetRecoveryCapsuleInfo = GetRecoveryCapsuleInfo;\r | |
70 | PrivateData->DeviceRecoveryPpi.LoadRecoveryCapsule = LoadRecoveryCapsule;\r | |
71 | \r | |
72 | PrivateData->PpiDescriptor.Flags = (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r | |
73 | PrivateData->PpiDescriptor.Guid = &gEfiPeiDeviceRecoveryModulePpiGuid;\r | |
74 | PrivateData->PpiDescriptor.Ppi = &PrivateData->DeviceRecoveryPpi;\r | |
75 | \r | |
76 | Status = PeiServicesInstallPpi (&PrivateData->PpiDescriptor);\r | |
77 | if (EFI_ERROR (Status)) {\r | |
78 | return EFI_OUT_OF_RESOURCES;\r | |
79 | }\r | |
80 | //\r | |
81 | // PrivateData is allocated now, set it to the module variable\r | |
82 | //\r | |
83 | mPrivateData = PrivateData;\r | |
84 | \r | |
85 | //\r | |
86 | // Installs Block Io Ppi notification function\r | |
87 | //\r | |
88 | PrivateData->NotifyDescriptor.Flags =\r | |
89 | (\r | |
90 | EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK |\r | |
91 | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST\r | |
92 | );\r | |
93 | PrivateData->NotifyDescriptor.Guid = &gEfiPeiVirtualBlockIoPpiGuid;\r | |
94 | PrivateData->NotifyDescriptor.Notify = BlockIoNotifyEntry;\r | |
95 | return PeiServicesNotifyPpi (&PrivateData->NotifyDescriptor);\r | |
96 | \r | |
97 | }\r | |
98 | \r | |
99 | /**\r | |
100 | BlockIo installation notification function. \r | |
101 | \r | |
102 | This function finds out all the current Block IO PPIs in the system and add them\r | |
103 | into private data.\r | |
104 | \r | |
105 | @param PeiServices Indirect reference to the PEI Services Table.\r | |
106 | @param NotifyDescriptor Address of the notification descriptor data structure.\r | |
107 | @param Ppi Address of the PPI that was installed.\r | |
108 | \r | |
109 | @retval EFI_SUCCESS The function completes successfully.\r | |
110 | \r | |
111 | **/\r | |
112 | EFI_STATUS\r | |
113 | EFIAPI\r | |
114 | BlockIoNotifyEntry (\r | |
115 | IN EFI_PEI_SERVICES **PeiServices,\r | |
116 | IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,\r | |
117 | IN VOID *Ppi\r | |
118 | )\r | |
119 | {\r | |
120 | UpdateBlocksAndVolumes (mPrivateData);\r | |
121 | \r | |
122 | return EFI_SUCCESS;\r | |
123 | }\r | |
124 | \r | |
125 | /**\r | |
126 | Finds out all the current Block IO PPIs in the system and add them into private data.\r | |
127 | \r | |
128 | @param PrivateData The private data structure that contains recovery module information.\r | |
129 | \r | |
130 | @retval EFI_SUCCESS The blocks and volumes are updated successfully.\r | |
131 | \r | |
132 | **/\r | |
133 | EFI_STATUS\r | |
134 | UpdateBlocksAndVolumes (\r | |
135 | IN OUT PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData\r | |
136 | )\r | |
137 | {\r | |
138 | EFI_STATUS Status;\r | |
139 | EFI_PEI_PPI_DESCRIPTOR *TempPpiDescriptor;\r | |
140 | UINTN BlockIoPpiInstance;\r | |
141 | EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;\r | |
142 | UINTN NumberBlockDevices;\r | |
143 | UINTN IndexBlockDevice;\r | |
144 | EFI_PEI_BLOCK_IO_MEDIA Media;\r | |
145 | EFI_PEI_SERVICES **PeiServices;\r | |
146 | \r | |
147 | IndexBlockDevice = 0;\r | |
148 | //\r | |
149 | // Find out all Block Io Ppi instances within the system\r | |
150 | // Assuming all device Block Io Peims are dispatched already\r | |
151 | //\r | |
152 | for (BlockIoPpiInstance = 0; BlockIoPpiInstance < PEI_CD_EXPRESS_MAX_BLOCK_IO_PPI; BlockIoPpiInstance++) {\r | |
153 | Status = PeiServicesLocatePpi (\r | |
154 | &gEfiPeiVirtualBlockIoPpiGuid,\r | |
155 | BlockIoPpiInstance,\r | |
156 | &TempPpiDescriptor,\r | |
157 | (VOID **) &BlockIoPpi\r | |
158 | );\r | |
159 | if (EFI_ERROR (Status)) {\r | |
160 | //\r | |
161 | // Done with all Block Io Ppis\r | |
162 | //\r | |
163 | break;\r | |
164 | }\r | |
165 | \r | |
166 | PeiServices = (EFI_PEI_SERVICES **) GetPeiServicesTablePointer ();\r | |
167 | Status = BlockIoPpi->GetNumberOfBlockDevices (\r | |
168 | PeiServices,\r | |
169 | BlockIoPpi,\r | |
170 | &NumberBlockDevices\r | |
171 | );\r | |
172 | if (EFI_ERROR (Status) || (NumberBlockDevices == 0)) {\r | |
173 | continue;\r | |
174 | }\r | |
175 | //\r | |
176 | // Just retrieve the first block, should emulate all blocks.\r | |
177 | //\r | |
178 | for (IndexBlockDevice = 1; IndexBlockDevice <= NumberBlockDevices && PrivateData->CapsuleCount < PEI_CD_EXPRESS_MAX_CAPSULE_NUMBER; IndexBlockDevice ++) {\r | |
179 | Status = BlockIoPpi->GetBlockDeviceMediaInfo (\r | |
180 | PeiServices,\r | |
181 | BlockIoPpi,\r | |
182 | IndexBlockDevice,\r | |
183 | &Media\r | |
184 | );\r | |
185 | if (EFI_ERROR (Status) ||\r | |
186 | !Media.MediaPresent ||\r | |
187 | ((Media.DeviceType != IdeCDROM) && (Media.DeviceType != UsbMassStorage)) ||\r | |
188 | (Media.BlockSize != PEI_CD_BLOCK_SIZE)\r | |
189 | ) {\r | |
190 | continue;\r | |
191 | }\r | |
192 | \r | |
193 | DEBUG ((EFI_D_INFO, "PeiCdExpress DeviceType is %d\n", Media.DeviceType));\r | |
194 | DEBUG ((EFI_D_INFO, "PeiCdExpress MediaPresent is %d\n", Media.MediaPresent));\r | |
195 | DEBUG ((EFI_D_INFO, "PeiCdExpress BlockSize is 0x%x\n", Media.BlockSize));\r | |
196 | DEBUG ((EFI_D_INFO, "PeiCdExpress Status is %d\n", Status));\r | |
197 | \r | |
198 | DEBUG ((EFI_D_INFO, "IndexBlockDevice is %d\n", IndexBlockDevice));\r | |
199 | PrivateData->CapsuleData[PrivateData->CapsuleCount].IndexBlock = IndexBlockDevice; \r | |
200 | PrivateData->CapsuleData[PrivateData->CapsuleCount].BlockIo = BlockIoPpi;\r | |
201 | Status = FindRecoveryCapsules (PrivateData);\r | |
202 | DEBUG ((EFI_D_INFO, "Status is %d\n", Status));\r | |
203 | \r | |
204 | if (EFI_ERROR (Status)) {\r | |
205 | continue;\r | |
206 | }\r | |
207 | \r | |
208 | PrivateData->CapsuleCount++;\r | |
209 | }\r | |
210 | \r | |
211 | }\r | |
212 | \r | |
213 | return EFI_SUCCESS;\r | |
214 | }\r | |
215 | \r | |
216 | /**\r | |
217 | Finds out the recovery capsule in the current volume.\r | |
218 | \r | |
219 | @param PrivateData The private data structure that contains recovery module information.\r | |
220 | \r | |
221 | @retval EFI_SUCCESS The recovery capsule is successfully found in the volume.\r | |
222 | @retval EFI_NOT_FOUND The recovery capsule is not found in the volume.\r | |
223 | \r | |
224 | **/\r | |
225 | EFI_STATUS\r | |
226 | EFIAPI\r | |
227 | FindRecoveryCapsules (\r | |
228 | IN OUT PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData\r | |
229 | )\r | |
230 | {\r | |
231 | EFI_STATUS Status;\r | |
232 | UINTN Lba;\r | |
233 | EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;\r | |
234 | UINTN BufferSize;\r | |
235 | UINT8 *Buffer;\r | |
236 | UINT8 Type;\r | |
237 | UINT8 *StandardID;\r | |
238 | UINT32 RootDirLBA;\r | |
239 | PEI_CD_EXPRESS_DIR_FILE_RECORD *RoorDirRecord;\r | |
240 | UINTN VolumeSpaceSize;\r | |
241 | BOOLEAN StartOfVolume;\r | |
242 | UINTN OriginalLBA;\r | |
243 | UINTN IndexBlockDevice;\r | |
244 | \r | |
245 | Buffer = PrivateData->BlockBuffer;\r | |
246 | BufferSize = PEI_CD_BLOCK_SIZE;\r | |
247 | \r | |
248 | Lba = 16;\r | |
249 | //\r | |
250 | // The volume descriptor starts on Lba 16\r | |
251 | //\r | |
252 | IndexBlockDevice = PrivateData->CapsuleData[PrivateData->CapsuleCount].IndexBlock;\r | |
253 | BlockIoPpi = PrivateData->CapsuleData[PrivateData->CapsuleCount].BlockIo;\r | |
254 | \r | |
255 | VolumeSpaceSize = 0;\r | |
256 | StartOfVolume = TRUE;\r | |
257 | OriginalLBA = 16;\r | |
258 | \r | |
259 | while (TRUE) {\r | |
260 | SetMem (Buffer, BufferSize, 0);\r | |
261 | Status = BlockIoPpi->ReadBlocks (\r | |
262 | PrivateData->PeiServices,\r | |
263 | BlockIoPpi,\r | |
264 | IndexBlockDevice,\r | |
265 | Lba,\r | |
266 | BufferSize,\r | |
267 | Buffer\r | |
268 | );\r | |
269 | if (EFI_ERROR (Status)) {\r | |
270 | return Status;\r | |
271 | }\r | |
272 | \r | |
273 | StandardID = (UINT8 *) (Buffer + PEI_CD_EXPRESS_STANDARD_ID_OFFSET);\r | |
274 | if (!StringCmp (StandardID, (UINT8 *) PEI_CD_STANDARD_ID, PEI_CD_EXPRESS_STANDARD_ID_SIZE, TRUE)) {\r | |
275 | break;\r | |
276 | }\r | |
277 | \r | |
278 | if (StartOfVolume) {\r | |
279 | OriginalLBA = Lba;\r | |
280 | StartOfVolume = FALSE;\r | |
281 | }\r | |
282 | \r | |
283 | Type = *(UINT8 *) (Buffer + PEI_CD_EXPRESS_VOLUME_TYPE_OFFSET);\r | |
284 | if (Type == PEI_CD_EXPRESS_VOLUME_TYPE_TERMINATOR) {\r | |
285 | if (VolumeSpaceSize == 0) {\r | |
286 | break;\r | |
287 | } else {\r | |
288 | Lba = (OriginalLBA + VolumeSpaceSize);\r | |
289 | VolumeSpaceSize = 0;\r | |
290 | StartOfVolume = TRUE;\r | |
291 | continue;\r | |
292 | }\r | |
293 | }\r | |
294 | \r | |
295 | if (Type != PEI_CD_EXPRESS_VOLUME_TYPE_PRIMARY) {\r | |
296 | Lba++;\r | |
297 | continue;\r | |
298 | }\r | |
299 | \r | |
300 | VolumeSpaceSize = *(UINT32 *) (Buffer + PEI_CD_EXPRESS_VOLUME_SPACE_OFFSET);\r | |
301 | \r | |
302 | RoorDirRecord = (PEI_CD_EXPRESS_DIR_FILE_RECORD *) (Buffer + PEI_CD_EXPRESS_ROOT_DIR_RECORD_OFFSET);\r | |
303 | RootDirLBA = RoorDirRecord->LocationOfExtent[0];\r | |
304 | \r | |
305 | Status = RetrieveCapsuleFileFromRoot (PrivateData, BlockIoPpi, IndexBlockDevice, RootDirLBA);\r | |
306 | if (!EFI_ERROR (Status)) {\r | |
307 | //\r | |
308 | // Just look for the first primary descriptor\r | |
309 | //\r | |
310 | return EFI_SUCCESS;\r | |
311 | }\r | |
312 | \r | |
313 | Lba++;\r | |
314 | }\r | |
315 | \r | |
316 | return EFI_NOT_FOUND;\r | |
317 | }\r | |
318 | \r | |
319 | /**\r | |
320 | Retrieves the recovery capsule in root directory of the current volume.\r | |
321 | \r | |
322 | @param PrivateData The private data structure that contains recovery module information.\r | |
323 | @param BlockIoPpi The Block IO PPI used to access the volume.\r | |
324 | @param IndexBlockDevice The index of current block device.\r | |
325 | @param Lba The starting logic block address to retrieve capsule.\r | |
326 | \r | |
327 | @retval EFI_SUCCESS The recovery capsule is successfully found in the volume.\r | |
328 | @retval EFI_NOT_FOUND The recovery capsule is not found in the volume.\r | |
329 | @retval Others \r | |
330 | \r | |
331 | **/\r | |
332 | EFI_STATUS\r | |
333 | EFIAPI\r | |
334 | RetrieveCapsuleFileFromRoot (\r | |
335 | IN OUT PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData,\r | |
336 | IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi,\r | |
337 | IN UINTN IndexBlockDevice,\r | |
338 | IN UINT32 Lba\r | |
339 | )\r | |
340 | {\r | |
341 | EFI_STATUS Status;\r | |
342 | UINTN BufferSize;\r | |
343 | UINT8 *Buffer;\r | |
344 | PEI_CD_EXPRESS_DIR_FILE_RECORD *FileRecord;\r | |
345 | UINTN Index;\r | |
346 | \r | |
347 | Buffer = PrivateData->BlockBuffer;\r | |
348 | BufferSize = PEI_CD_BLOCK_SIZE;\r | |
349 | \r | |
350 | SetMem (Buffer, BufferSize, 0);\r | |
351 | \r | |
352 | Status = BlockIoPpi->ReadBlocks (\r | |
353 | PrivateData->PeiServices,\r | |
354 | BlockIoPpi,\r | |
355 | IndexBlockDevice,\r | |
356 | Lba,\r | |
357 | BufferSize,\r | |
358 | Buffer\r | |
359 | );\r | |
360 | if (EFI_ERROR (Status)) {\r | |
361 | return Status;\r | |
362 | }\r | |
363 | \r | |
364 | while (1) {\r | |
365 | FileRecord = (PEI_CD_EXPRESS_DIR_FILE_RECORD *) Buffer;\r | |
366 | \r | |
367 | if (FileRecord->Length == 0) {\r | |
368 | break;\r | |
369 | }\r | |
370 | //\r | |
371 | // Not intend to check other flag now\r | |
372 | //\r | |
373 | if ((FileRecord->Flag & PEI_CD_EXPRESS_DIR_FILE_REC_FLAG_ISDIR) != 0) {\r | |
374 | Buffer += FileRecord->Length;\r | |
375 | continue;\r | |
376 | }\r | |
377 | \r | |
378 | for (Index = 0; Index < FileRecord->FileIDLength; Index++) {\r | |
379 | if (FileRecord->FileID[Index] == ';') {\r | |
380 | break;\r | |
381 | }\r | |
382 | }\r | |
383 | \r | |
384 | if (Index != (sizeof (PEI_RECOVERY_FILE_NAME) - 1)) {\r | |
385 | Buffer += FileRecord->Length;\r | |
386 | continue;\r | |
387 | }\r | |
388 | \r | |
389 | if (!StringCmp (FileRecord->FileID, (UINT8 *) PEI_RECOVERY_FILE_NAME, sizeof (PEI_RECOVERY_FILE_NAME) - 1, FALSE)) {\r | |
390 | Buffer += FileRecord->Length;\r | |
391 | continue;\r | |
392 | }\r | |
393 | \r | |
394 | PrivateData->CapsuleData[PrivateData->CapsuleCount].CapsuleStartLBA = FileRecord->LocationOfExtent[0];\r | |
395 | PrivateData->CapsuleData[PrivateData->CapsuleCount].CapsuleSize =\r | |
396 | (\r | |
397 | FileRecord->DataLength[0] /\r | |
398 | PEI_CD_BLOCK_SIZE +\r | |
399 | 1\r | |
400 | ) *\r | |
401 | PEI_CD_BLOCK_SIZE;\r | |
402 | \r | |
403 | return EFI_SUCCESS;\r | |
404 | }\r | |
405 | \r | |
406 | return EFI_NOT_FOUND;\r | |
407 | }\r | |
408 | \r | |
409 | /**\r | |
410 | Returns the number of DXE capsules residing on the device.\r | |
411 | \r | |
412 | This function searches for DXE capsules from the associated device and returns\r | |
413 | the number and maximum size in bytes of the capsules discovered. Entry 1 is \r | |
414 | assumed to be the highest load priority and entry N is assumed to be the lowest \r | |
415 | priority.\r | |
416 | \r | |
417 | @param[in] PeiServices General-purpose services that are available \r | |
418 | to every PEIM\r | |
419 | @param[in] This Indicates the EFI_PEI_DEVICE_RECOVERY_MODULE_PPI\r | |
420 | instance.\r | |
421 | @param[out] NumberRecoveryCapsules Pointer to a caller-allocated UINTN. On \r | |
422 | output, *NumberRecoveryCapsules contains \r | |
423 | the number of recovery capsule images \r | |
424 | available for retrieval from this PEIM \r | |
425 | instance.\r | |
426 | \r | |
427 | @retval EFI_SUCCESS One or more capsules were discovered.\r | |
428 | @retval EFI_DEVICE_ERROR A device error occurred.\r | |
429 | @retval EFI_NOT_FOUND A recovery DXE capsule cannot be found.\r | |
430 | \r | |
431 | **/\r | |
432 | EFI_STATUS\r | |
433 | EFIAPI\r | |
434 | GetNumberRecoveryCapsules (\r | |
435 | IN EFI_PEI_SERVICES **PeiServices,\r | |
436 | IN EFI_PEI_DEVICE_RECOVERY_MODULE_PPI *This,\r | |
437 | OUT UINTN *NumberRecoveryCapsules\r | |
438 | )\r | |
439 | {\r | |
440 | PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;\r | |
441 | \r | |
442 | PrivateData = PEI_CD_EXPRESS_PRIVATE_DATA_FROM_THIS (This);\r | |
443 | UpdateBlocksAndVolumes (PrivateData);\r | |
444 | *NumberRecoveryCapsules = PrivateData->CapsuleCount;\r | |
445 | \r | |
446 | if (*NumberRecoveryCapsules == 0) {\r | |
447 | return EFI_NOT_FOUND;\r | |
448 | }\r | |
449 | \r | |
450 | return EFI_SUCCESS;\r | |
451 | }\r | |
452 | \r | |
453 | /**\r | |
454 | Returns the size and type of the requested recovery capsule.\r | |
455 | \r | |
456 | This function gets the size and type of the capsule specified by CapsuleInstance.\r | |
457 | \r | |
458 | @param[in] PeiServices General-purpose services that are available to every PEIM\r | |
459 | @param[in] This Indicates the EFI_PEI_DEVICE_RECOVERY_MODULE_PPI \r | |
460 | instance.\r | |
461 | @param[in] CapsuleInstance Specifies for which capsule instance to retrieve \r | |
462 | the information. This parameter must be between \r | |
463 | one and the value returned by GetNumberRecoveryCapsules() \r | |
464 | in NumberRecoveryCapsules.\r | |
465 | @param[out] Size A pointer to a caller-allocated UINTN in which \r | |
466 | the size of the requested recovery module is \r | |
467 | returned.\r | |
468 | @param[out] CapsuleType A pointer to a caller-allocated EFI_GUID in which \r | |
469 | the type of the requested recovery capsule is \r | |
470 | returned. The semantic meaning of the value \r | |
471 | returned is defined by the implementation.\r | |
472 | \r | |
473 | @retval EFI_SUCCESS One or more capsules were discovered.\r | |
474 | @retval EFI_DEVICE_ERROR A device error occurred.\r | |
475 | @retval EFI_NOT_FOUND A recovery DXE capsule cannot be found.\r | |
476 | \r | |
477 | **/\r | |
478 | EFI_STATUS\r | |
479 | EFIAPI\r | |
480 | GetRecoveryCapsuleInfo (\r | |
481 | IN EFI_PEI_SERVICES **PeiServices,\r | |
482 | IN EFI_PEI_DEVICE_RECOVERY_MODULE_PPI *This,\r | |
483 | IN UINTN CapsuleInstance,\r | |
484 | OUT UINTN *Size,\r | |
485 | OUT EFI_GUID *CapsuleType\r | |
486 | )\r | |
487 | {\r | |
488 | PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;\r | |
489 | UINTN NumberRecoveryCapsules;\r | |
490 | EFI_STATUS Status;\r | |
491 | \r | |
492 | Status = GetNumberRecoveryCapsules (PeiServices, This, &NumberRecoveryCapsules);\r | |
493 | \r | |
494 | if (EFI_ERROR (Status)) {\r | |
495 | return Status;\r | |
496 | }\r | |
497 | \r | |
498 | if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {\r | |
499 | CapsuleInstance = CapsuleInstance + 1;\r | |
500 | }\r | |
501 | \r | |
502 | if ((CapsuleInstance == 0) || (CapsuleInstance > NumberRecoveryCapsules)) {\r | |
503 | return EFI_NOT_FOUND;\r | |
504 | }\r | |
505 | \r | |
506 | PrivateData = PEI_CD_EXPRESS_PRIVATE_DATA_FROM_THIS (This);\r | |
507 | \r | |
508 | *Size = PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleSize;\r | |
509 | CopyMem (\r | |
510 | CapsuleType,\r | |
511 | &gRecoveryOnDataCdGuid,\r | |
512 | sizeof (EFI_GUID)\r | |
513 | );\r | |
514 | \r | |
515 | return EFI_SUCCESS;\r | |
516 | }\r | |
517 | \r | |
518 | /**\r | |
519 | Loads a DXE capsule from some media into memory.\r | |
520 | \r | |
521 | This function, by whatever mechanism, retrieves a DXE capsule from some device\r | |
522 | and loads it into memory. Note that the published interface is device neutral.\r | |
523 | \r | |
524 | @param[in] PeiServices General-purpose services that are available \r | |
525 | to every PEIM\r | |
526 | @param[in] This Indicates the EFI_PEI_DEVICE_RECOVERY_MODULE_PPI\r | |
527 | instance.\r | |
528 | @param[in] CapsuleInstance Specifies which capsule instance to retrieve.\r | |
529 | @param[out] Buffer Specifies a caller-allocated buffer in which \r | |
530 | the requested recovery capsule will be returned.\r | |
531 | \r | |
532 | @retval EFI_SUCCESS The capsule was loaded correctly.\r | |
533 | @retval EFI_DEVICE_ERROR A device error occurred.\r | |
534 | @retval EFI_NOT_FOUND A requested recovery DXE capsule cannot be found.\r | |
535 | \r | |
536 | **/\r | |
537 | EFI_STATUS\r | |
538 | EFIAPI\r | |
539 | LoadRecoveryCapsule (\r | |
540 | IN EFI_PEI_SERVICES **PeiServices,\r | |
541 | IN EFI_PEI_DEVICE_RECOVERY_MODULE_PPI *This,\r | |
542 | IN UINTN CapsuleInstance,\r | |
543 | OUT VOID *Buffer\r | |
544 | )\r | |
545 | {\r | |
546 | EFI_STATUS Status;\r | |
547 | PEI_CD_EXPRESS_PRIVATE_DATA *PrivateData;\r | |
548 | EFI_PEI_RECOVERY_BLOCK_IO_PPI *BlockIoPpi;\r | |
549 | UINTN NumberRecoveryCapsules;\r | |
550 | \r | |
551 | Status = GetNumberRecoveryCapsules (PeiServices, This, &NumberRecoveryCapsules);\r | |
552 | \r | |
553 | if (EFI_ERROR (Status)) {\r | |
554 | return Status;\r | |
555 | }\r | |
556 | \r | |
557 | if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {\r | |
558 | CapsuleInstance = CapsuleInstance + 1;\r | |
559 | }\r | |
560 | \r | |
561 | if ((CapsuleInstance == 0) || (CapsuleInstance > NumberRecoveryCapsules)) {\r | |
562 | return EFI_NOT_FOUND;\r | |
563 | }\r | |
564 | \r | |
565 | PrivateData = PEI_CD_EXPRESS_PRIVATE_DATA_FROM_THIS (This);\r | |
566 | BlockIoPpi = PrivateData->CapsuleData[CapsuleInstance - 1].BlockIo;\r | |
567 | \r | |
568 | Status = BlockIoPpi->ReadBlocks (\r | |
569 | PrivateData->PeiServices,\r | |
570 | BlockIoPpi,\r | |
571 | PrivateData->CapsuleData[CapsuleInstance - 1].IndexBlock,\r | |
572 | PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleStartLBA,\r | |
573 | PrivateData->CapsuleData[CapsuleInstance - 1].CapsuleSize,\r | |
574 | Buffer\r | |
575 | );\r | |
576 | return Status;\r | |
577 | }\r | |
578 | \r | |
579 | /**\r | |
580 | This function compares two ASCII strings in case sensitive/insensitive way.\r | |
581 | \r | |
582 | @param Source1 The first string.\r | |
583 | @param Source2 The second string.\r | |
584 | @param Size The maximum comparison length.\r | |
585 | @param CaseSensitive Flag to indicate whether the comparison is case sensitive.\r | |
586 | \r | |
587 | @retval TRUE The two strings are the same.\r | |
588 | @retval FALSE The two string are not the same.\r | |
589 | \r | |
590 | **/\r | |
591 | BOOLEAN\r | |
592 | StringCmp (\r | |
593 | IN UINT8 *Source1,\r | |
594 | IN UINT8 *Source2,\r | |
595 | IN UINTN Size,\r | |
596 | IN BOOLEAN CaseSensitive\r | |
597 | )\r | |
598 | {\r | |
599 | UINTN Index;\r | |
600 | UINT8 Dif;\r | |
601 | \r | |
602 | for (Index = 0; Index < Size; Index++) {\r | |
603 | if (Source1[Index] == Source2[Index]) {\r | |
604 | continue;\r | |
605 | }\r | |
606 | \r | |
607 | if (!CaseSensitive) {\r | |
608 | Dif = (UINT8) ((Source1[Index] > Source2[Index]) ? (Source1[Index] - Source2[Index]) : (Source2[Index] - Source1[Index]));\r | |
609 | if (Dif == ('a' - 'A')) {\r | |
610 | continue;\r | |
611 | }\r | |
612 | }\r | |
613 | \r | |
614 | return FALSE;\r | |
615 | }\r | |
616 | \r | |
617 | return TRUE;\r | |
618 | }\r |