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3cbfba02 DW |
1 | /** @file\r |
2 | Firmware Volume Block Driver for Lakeport Platform.\r | |
3 | \r | |
4 | Firmware volume block driver for FWH or SPI device.\r | |
5 | It depends on which Flash Device Library to be linked with this driver.\r | |
6 | \r | |
7 | Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
8 | \r\r | |
9dc8036d MK |
9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
10 | \r | |
3cbfba02 DW |
11 | \r\r |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "FvbService.h"\r | |
16 | \r | |
17 | //\r | |
18 | // Global variable for this FVB driver which contains\r | |
19 | // the private data of all firmware volume block instances.\r | |
20 | //\r | |
21 | FWB_GLOBAL mFvbModuleGlobal;\r | |
22 | \r | |
23 | //\r | |
24 | // This platform driver knows there are 3 FVs on\r | |
25 | // FD, which are FvRecovery, FvMain and FvNvStorage.\r | |
26 | //\r | |
27 | UINT32 mPlatformFvBaseAddress[] = {\r | |
28 | FixedPcdGet32(PcdFlashNvStorageVariableBase),\r | |
29 | };\r | |
30 | \r | |
31 | FV_MEMMAP_DEVICE_PATH mFvMemmapDevicePathTemplate = {\r | |
32 | {\r | |
33 | {\r | |
34 | HARDWARE_DEVICE_PATH,\r | |
35 | HW_MEMMAP_DP,\r | |
36 | {\r | |
37 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),\r | |
38 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH) >> 8)\r | |
39 | }\r | |
40 | },\r | |
41 | EfiMemoryMappedIO,\r | |
42 | (EFI_PHYSICAL_ADDRESS) 0,\r | |
43 | (EFI_PHYSICAL_ADDRESS) 0,\r | |
44 | },\r | |
45 | {\r | |
46 | END_DEVICE_PATH_TYPE,\r | |
47 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
48 | {\r | |
49 | END_DEVICE_PATH_LENGTH,\r | |
50 | 0\r | |
51 | }\r | |
52 | }\r | |
53 | };\r | |
54 | \r | |
55 | FV_PIWG_DEVICE_PATH mFvPIWGDevicePathTemplate = {\r | |
56 | {\r | |
57 | {\r | |
58 | MEDIA_DEVICE_PATH,\r | |
59 | MEDIA_PIWG_FW_VOL_DP,\r | |
60 | {\r | |
61 | (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH)),\r | |
62 | (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH) >> 8)\r | |
63 | }\r | |
64 | },\r | |
65 | { 0 }\r | |
66 | },\r | |
67 | {\r | |
68 | END_DEVICE_PATH_TYPE,\r | |
69 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
70 | {\r | |
71 | END_DEVICE_PATH_LENGTH,\r | |
72 | 0\r | |
73 | }\r | |
74 | }\r | |
75 | };\r | |
76 | \r | |
77 | //\r | |
78 | // Template structure used when installing FVB protocol.\r | |
79 | //\r | |
80 | EFI_FW_VOL_BLOCK_DEVICE mFvbDeviceTemplate = {\r | |
81 | FVB_DEVICE_SIGNATURE,\r | |
82 | NULL,\r | |
83 | 0, // Instance\r | |
84 | {\r | |
85 | FvbProtocolGetAttributes,\r | |
86 | FvbProtocolSetAttributes,\r | |
87 | FvbProtocolGetPhysicalAddress,\r | |
88 | FvbProtocolGetBlockSize,\r | |
89 | FvbProtocolRead,\r | |
90 | FvbProtocolWrite,\r | |
91 | FvbProtocolEraseBlocks,\r | |
92 | NULL\r | |
93 | } // FwVolBlockInstance\r | |
94 | };\r | |
95 | \r | |
96 | \r | |
97 | /**\r | |
98 | Get the pointer to EFI_FW_VOL_INSTANCE from the buffer pointed\r | |
99 | by mFvbModuleGlobal.FvInstance based on a index.\r | |
100 | Each EFI_FW_VOL_INSTANCE is with variable length as\r | |
101 | we have a block map at the end of the EFI_FIRMWARE_VOLUME_HEADER.\r | |
102 | \r | |
103 | @param[in] Instance The index of the EFI_FW_VOL_INSTANCE.\r | |
104 | \r | |
105 | @return A pointer to EFI_FW_VOL_INSTANCE.\r | |
106 | \r | |
107 | **/\r | |
108 | EFI_FW_VOL_INSTANCE *\r | |
109 | GetFvbInstance (\r | |
110 | IN UINTN Instance\r | |
111 | )\r | |
112 | {\r | |
113 | EFI_FW_VOL_INSTANCE *FwhRecord;\r | |
114 | \r | |
115 | if ( Instance >= mFvbModuleGlobal.NumFv ) {\r | |
116 | ASSERT_EFI_ERROR (EFI_INVALID_PARAMETER);\r | |
117 | return NULL;\r | |
118 | }\r | |
119 | \r | |
120 | //\r | |
121 | // Find the right instance of the FVB private data.\r | |
122 | //\r | |
123 | FwhRecord = mFvbModuleGlobal.FvInstance;\r | |
124 | while ( Instance > 0 ) {\r | |
125 | FwhRecord = (EFI_FW_VOL_INSTANCE *) ((UINTN)((UINT8 *)FwhRecord) +\r | |
126 | FwhRecord->VolumeHeader.HeaderLength +\r | |
127 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER)));\r | |
128 | Instance --;\r | |
129 | }\r | |
130 | \r | |
131 | return FwhRecord;\r | |
132 | \r | |
133 | }\r | |
134 | \r | |
135 | \r | |
136 | /**\r | |
137 | Get the EFI_FVB_ATTRIBUTES_2 of a FV.\r | |
138 | \r | |
139 | @param[in] The index of the EFI_FW_VOL_INSTANCE.\r | |
140 | \r | |
141 | @return EFI_FVB_ATTRIBUTES_2 of the FV identified by Instance.\r | |
142 | \r | |
143 | **/\r | |
144 | STATIC\r | |
145 | EFI_FVB_ATTRIBUTES_2\r | |
146 | FvbGetVolumeAttributes (\r | |
147 | IN UINTN Instance\r | |
148 | )\r | |
149 | {\r | |
150 | EFI_FW_VOL_INSTANCE * FwInstance = NULL;\r | |
151 | FwInstance = GetFvbInstance(Instance);\r | |
ba53301f | 152 | ASSERT (FwInstance != NULL);\r |
3cbfba02 DW |
153 | \r |
154 | if ( FwInstance != NULL ) {\r | |
155 | return FwInstance->VolumeHeader.Attributes;\r | |
156 | } else {\r | |
157 | return 0;\r | |
158 | }\r | |
159 | }\r | |
160 | \r | |
161 | \r | |
162 | /**\r | |
163 | Retrieves the starting address of an LBA in an FV. It also\r | |
164 | return a few other attribut of the FV.\r | |
165 | \r | |
166 | @param[in] Instance The index of the EFI_FW_VOL_INSTANCE.\r | |
167 | @param[in] Lba The logical block address.\r | |
168 | @param[out] LbaAddress On output, contains the physical starting address\r | |
169 | of the Lba.\r | |
170 | @param[out] LbaLength On output, contains the length of the block.\r | |
171 | @param[out] NumOfBlocks A pointer to a caller allocated UINTN in which the\r | |
172 | number of consecutive blocks starting with Lba is\r | |
173 | returned. All blocks in this range have a size of\r | |
174 | BlockSize.\r | |
175 | \r | |
176 | @retval EFI_SUCCESS Successfully returns.\r | |
177 | @retval EFI_INVALID_PARAMETER Instance not found.\r | |
178 | \r | |
179 | **/\r | |
180 | STATIC\r | |
181 | EFI_STATUS\r | |
182 | FvbGetLbaAddress (\r | |
183 | IN UINTN Instance,\r | |
184 | IN EFI_LBA Lba,\r | |
185 | OUT UINTN *LbaAddress,\r | |
186 | OUT UINTN *LbaLength,\r | |
187 | OUT UINTN *NumOfBlocks\r | |
188 | )\r | |
189 | {\r | |
190 | UINT32 NumBlocks = 0;\r | |
191 | UINT32 BlockLength = 0;\r | |
192 | UINTN Offset;\r | |
193 | EFI_LBA StartLba;\r | |
194 | EFI_LBA NextLba;\r | |
195 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
196 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap = NULL;\r | |
197 | \r | |
198 | //\r | |
199 | // Find the right instance of the FVB private data.\r | |
200 | //\r | |
201 | FwhInstance = GetFvbInstance (Instance);\r | |
202 | \r | |
203 | StartLba = 0;\r | |
204 | Offset = 0;\r | |
205 | BlockMap = &(FwhInstance->VolumeHeader.BlockMap[0]);\r | |
ba53301f | 206 | ASSERT (BlockMap != NULL);\r |
3cbfba02 DW |
207 | \r |
208 | //\r | |
209 | // Parse the blockmap of the FV to find which map entry the Lba belongs to.\r | |
210 | //\r | |
211 | while (TRUE) {\r | |
212 | if ( BlockMap != NULL) {\r | |
213 | NumBlocks = BlockMap->NumBlocks;\r | |
214 | BlockLength = BlockMap->Length;\r | |
215 | }\r | |
216 | \r | |
217 | if ( NumBlocks == 0 || BlockLength == 0) {\r | |
218 | return EFI_INVALID_PARAMETER;\r | |
219 | }\r | |
220 | \r | |
221 | NextLba = StartLba + NumBlocks;\r | |
222 | \r | |
223 | //\r | |
224 | // The map entry found.\r | |
225 | //\r | |
226 | if (Lba >= StartLba && Lba < NextLba) {\r | |
227 | Offset = Offset + (UINTN)MultU64x32((Lba - StartLba), BlockLength);\r | |
228 | if ( LbaAddress && FwhInstance ) {\r | |
229 | *LbaAddress = FwhInstance->FvBase + Offset;\r | |
230 | }\r | |
231 | \r | |
232 | if (LbaLength ) {\r | |
233 | *LbaLength = BlockLength;\r | |
234 | }\r | |
235 | \r | |
236 | if (NumOfBlocks ) {\r | |
237 | *NumOfBlocks = (UINTN)(NextLba - Lba);\r | |
238 | }\r | |
239 | return EFI_SUCCESS;\r | |
240 | }\r | |
241 | \r | |
242 | StartLba = NextLba;\r | |
243 | Offset = Offset + NumBlocks * BlockLength;\r | |
244 | BlockMap++;\r | |
245 | }\r | |
246 | }\r | |
247 | \r | |
248 | \r | |
249 | /**\r | |
250 | Reads specified number of bytes into a buffer from the specified block.\r | |
251 | \r | |
252 | @param[in] Instance The FV instance to be read from.\r | |
253 | @param[in] Lba The logical block address to be read from.\r | |
254 | @param[in] BlockOffset Offset into the block at which to begin reading.\r | |
255 | @param[in] NumBytes Pointer that on input contains the total size of\r | |
256 | the buffer. On output, it contains the total number\r | |
257 | of bytes read.\r | |
258 | @param[in] Buffer Pointer to a caller allocated buffer that will be\r | |
259 | used to hold the data read.\r | |
260 | \r | |
261 | \r | |
262 | @retval EFI_SUCCESS The firmware volume was read successfully and\r | |
263 | contents are in Buffer.\r | |
264 | @retval EFI_BAD_BUFFER_SIZE Read attempted across a LBA boundary. On output,\r | |
265 | NumBytes contains the total number of bytes returned\r | |
266 | in Buffer.\r | |
267 | @retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state.\r | |
268 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and\r | |
269 | could not be read.\r | |
270 | @retval EFI_INVALID_PARAMETER Instance not found, or NumBytes, Buffer are NULL.\r | |
271 | \r | |
272 | **/\r | |
273 | STATIC\r | |
274 | EFI_STATUS\r | |
275 | FvbReadBlock (\r | |
276 | IN UINTN Instance,\r | |
277 | IN EFI_LBA Lba,\r | |
278 | IN UINTN BlockOffset,\r | |
279 | IN OUT UINTN *NumBytes,\r | |
280 | IN UINT8 *Buffer\r | |
281 | )\r | |
282 | {\r | |
283 | EFI_FVB_ATTRIBUTES_2 Attributes;\r | |
284 | UINTN LbaAddress;\r | |
285 | UINTN LbaLength;\r | |
286 | EFI_STATUS Status;\r | |
287 | \r | |
288 | if ( (NumBytes == NULL) || (Buffer == NULL)) {\r | |
289 | return (EFI_INVALID_PARAMETER);\r | |
290 | }\r | |
291 | if (*NumBytes == 0) {\r | |
292 | return (EFI_INVALID_PARAMETER);\r | |
293 | }\r | |
294 | \r | |
295 | Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaLength, NULL);\r | |
296 | if (EFI_ERROR(Status)) {\r | |
297 | return Status;\r | |
298 | }\r | |
299 | \r | |
300 | Attributes = FvbGetVolumeAttributes (Instance);\r | |
301 | \r | |
302 | if ( (Attributes & EFI_FVB2_READ_STATUS) == 0) {\r | |
303 | return (EFI_ACCESS_DENIED);\r | |
304 | }\r | |
305 | \r | |
306 | if (BlockOffset > LbaLength) {\r | |
307 | return (EFI_INVALID_PARAMETER);\r | |
308 | }\r | |
309 | \r | |
310 | if (LbaLength < ( *NumBytes + BlockOffset ) ) {\r | |
311 | *NumBytes = (UINT32) (LbaLength - BlockOffset);\r | |
312 | Status = EFI_BAD_BUFFER_SIZE;\r | |
313 | }\r | |
314 | \r | |
315 | LibFvbFlashDeviceRead (LbaAddress + BlockOffset, NumBytes, Buffer);\r | |
316 | \r | |
317 | return Status;\r | |
318 | }\r | |
319 | \r | |
320 | \r | |
321 | /**\r | |
322 | Writes specified number of bytes from the input buffer to the block.\r | |
323 | \r | |
324 | @param[in] Instance The FV instance to be written to.\r | |
325 | @param[in] Lba The starting logical block index to write to.\r | |
326 | @param[in] BlockOffset Offset into the block at which to begin writing.\r | |
327 | @param[in] NumBytes Pointer that on input contains the total size of\r | |
328 | the buffer. On output, it contains the total number\r | |
329 | of bytes actually written.\r | |
330 | @param[in] Buffer Pointer to a caller allocated buffer that contains\r | |
331 | the source for the write.\r | |
332 | @retval EFI_SUCCESS The firmware volume was written successfully.\r | |
333 | @retval EFI_BAD_BUFFER_SIZE Write attempted across a LBA boundary. On output,\r | |
334 | NumBytes contains the total number of bytes\r | |
335 | actually writte.\r | |
336 | @retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state.\r | |
337 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and\r | |
338 | could not be written.\r | |
339 | @retval EFI_INVALID_PARAMETER Instance not found, or NumBytes, Buffer are NULL.\r | |
340 | \r | |
341 | **/\r | |
342 | EFI_STATUS\r | |
343 | FvbWriteBlock (\r | |
344 | IN UINTN Instance,\r | |
345 | IN EFI_LBA Lba,\r | |
346 | IN UINTN BlockOffset,\r | |
347 | IN OUT UINTN *NumBytes,\r | |
348 | IN UINT8 *Buffer\r | |
349 | )\r | |
350 | {\r | |
351 | EFI_FVB_ATTRIBUTES_2 Attributes;\r | |
352 | UINTN LbaAddress;\r | |
353 | UINTN LbaLength;\r | |
3cbfba02 DW |
354 | EFI_STATUS Status;\r |
355 | EFI_STATUS Status1;\r | |
356 | \r | |
3cbfba02 DW |
357 | if ( (NumBytes == NULL) || (Buffer == NULL)) {\r |
358 | return (EFI_INVALID_PARAMETER);\r | |
359 | }\r | |
360 | if (*NumBytes == 0) {\r | |
361 | return (EFI_INVALID_PARAMETER);\r | |
362 | }\r | |
363 | \r | |
364 | Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaLength, NULL);\r | |
365 | if (EFI_ERROR(Status)) {\r | |
366 | return Status;\r | |
367 | }\r | |
368 | \r | |
369 | //\r | |
370 | // Check if the FV is write enabled.\r | |
371 | //\r | |
372 | Attributes = FvbGetVolumeAttributes (Instance);\r | |
373 | if ( (Attributes & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
374 | return (EFI_ACCESS_DENIED);\r | |
375 | }\r | |
376 | \r | |
377 | //\r | |
378 | // Perform boundary checks and adjust NumBytes.\r | |
379 | //\r | |
380 | if (BlockOffset > LbaLength) {\r | |
381 | return (EFI_INVALID_PARAMETER);\r | |
382 | }\r | |
383 | \r | |
384 | if ( LbaLength < ( *NumBytes + BlockOffset ) ) {\r | |
385 | DEBUG ((EFI_D_ERROR,\r | |
386 | "FvWriteBlock: Reducing Numbytes from 0x%x to 0x%x\n",\r | |
387 | *NumBytes,\r | |
388 | (UINT32)(LbaLength-BlockOffset))\r | |
389 | );\r | |
390 | *NumBytes = (UINT32) (LbaLength - BlockOffset);\r | |
391 | Status = EFI_BAD_BUFFER_SIZE;\r | |
392 | }\r | |
393 | \r | |
394 | LibFvbFlashDeviceBlockLock (LbaAddress, LbaLength, FALSE);\r | |
395 | \r | |
396 | Status1 = LibFvbFlashDeviceWrite (LbaAddress + BlockOffset, NumBytes, Buffer);\r | |
397 | \r | |
398 | LibFvbFlashDeviceBlockLock (LbaAddress, LbaLength, TRUE);\r | |
399 | WriteBackInvalidateDataCacheRange ((VOID *) (LbaAddress + BlockOffset), *NumBytes);\r | |
400 | \r | |
401 | if ( EFI_ERROR (Status1) ) {\r | |
402 | return Status1;\r | |
403 | }\r | |
404 | \r | |
405 | return Status;\r | |
406 | }\r | |
407 | \r | |
408 | \r | |
409 | /**\r | |
410 | Erases and initializes a firmware volume block.\r | |
411 | \r | |
412 | @param[in] Instance The FV instance to be erased.\r | |
413 | @param[in] Lba The logical block index to be erased.\r | |
414 | \r | |
415 | @retval EFI_SUCCESS The erase request was successfully completed.\r | |
416 | @retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state.\r | |
417 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and\r | |
418 | could not be written. Firmware device may have been\r | |
419 | partially erased.\r | |
420 | @retval EFI_INVALID_PARAMETER Instance not found.\r | |
421 | \r | |
422 | **/\r | |
423 | EFI_STATUS\r | |
424 | FvbEraseBlock (\r | |
425 | IN UINTN Instance,\r | |
426 | IN EFI_LBA Lba\r | |
427 | )\r | |
428 | {\r | |
429 | EFI_FVB_ATTRIBUTES_2 Attributes;\r | |
430 | UINTN LbaAddress;\r | |
3cbfba02 DW |
431 | UINTN LbaLength;\r |
432 | EFI_STATUS Status;\r | |
433 | \r | |
3cbfba02 DW |
434 | //\r |
435 | // Check if the FV is write enabled.\r | |
436 | //\r | |
437 | Attributes = FvbGetVolumeAttributes (Instance);\r | |
438 | \r | |
439 | if( (Attributes & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
440 | return (EFI_ACCESS_DENIED);\r | |
441 | }\r | |
442 | \r | |
443 | //\r | |
444 | // Get the starting address of the block for erase.\r | |
445 | //\r | |
446 | Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaLength, NULL);\r | |
447 | if (EFI_ERROR(Status)) {\r | |
448 | return Status;\r | |
449 | }\r | |
450 | \r | |
451 | LibFvbFlashDeviceBlockLock (LbaAddress, LbaLength, FALSE);\r | |
452 | \r | |
453 | Status = LibFvbFlashDeviceBlockErase (LbaAddress, LbaLength);\r | |
454 | \r | |
455 | LibFvbFlashDeviceBlockLock (LbaAddress, LbaLength, TRUE);\r | |
456 | \r | |
457 | WriteBackInvalidateDataCacheRange ((VOID *) LbaAddress, LbaLength);\r | |
458 | \r | |
459 | return Status;\r | |
460 | }\r | |
461 | \r | |
462 | \r | |
463 | /**\r | |
464 | Modifies the current settings of the firmware volume according to the\r | |
465 | input parameter, and returns the new setting of the volume.\r | |
466 | \r | |
467 | @param[in] Instance The FV instance whose attributes is going to be\r | |
468 | modified.\r | |
469 | @param[in] Attributes On input, it is a pointer to EFI_FVB_ATTRIBUTES_2\r | |
470 | containing the desired firmware volume settings.\r | |
471 | On successful return, it contains the new settings\r | |
472 | of the firmware volume.\r | |
473 | \r | |
474 | @retval EFI_SUCCESS Successfully returns.\r | |
475 | @retval EFI_ACCESS_DENIED The volume setting is locked and cannot be modified.\r | |
476 | @retval EFI_INVALID_PARAMETER Instance not found, or The attributes requested are\r | |
477 | in conflict with the capabilities as declared in the\r | |
478 | firmware volume header.\r | |
479 | \r | |
480 | **/\r | |
481 | STATIC\r | |
482 | EFI_STATUS\r | |
483 | FvbSetVolumeAttributes (\r | |
484 | IN UINTN Instance,\r | |
485 | IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
486 | )\r | |
487 | {\r | |
488 | EFI_FW_VOL_INSTANCE *FwhInstance = NULL;\r | |
489 | EFI_FVB_ATTRIBUTES_2 OldAttributes = 0;\r | |
490 | EFI_FVB_ATTRIBUTES_2 *AttribPtr = NULL;\r | |
491 | EFI_FVB_ATTRIBUTES_2 UnchangedAttributes;\r | |
492 | UINT32 Capabilities;\r | |
493 | UINT32 OldStatus, NewStatus;\r | |
494 | \r | |
495 | //\r | |
496 | // Find the right instance of the FVB private data.\r | |
497 | //\r | |
498 | FwhInstance = GetFvbInstance (Instance);\r | |
499 | \r | |
500 | AttribPtr = (EFI_FVB_ATTRIBUTES_2 *) & (FwhInstance->VolumeHeader.Attributes);\r | |
ba53301f | 501 | ASSERT (AttribPtr != NULL);\r |
3cbfba02 DW |
502 | \r |
503 | if ( AttribPtr != NULL) {\r | |
504 | OldAttributes = *AttribPtr;\r | |
505 | }\r | |
506 | \r | |
507 | Capabilities = OldAttributes & EFI_FVB2_CAPABILITIES;\r | |
508 | OldStatus = OldAttributes & EFI_FVB2_STATUS;\r | |
509 | NewStatus = *Attributes & EFI_FVB2_STATUS;\r | |
510 | \r | |
511 | UnchangedAttributes = EFI_FVB2_READ_DISABLED_CAP | \\r | |
512 | EFI_FVB2_READ_ENABLED_CAP | \\r | |
513 | EFI_FVB2_WRITE_DISABLED_CAP | \\r | |
514 | EFI_FVB2_WRITE_ENABLED_CAP | \\r | |
515 | EFI_FVB2_LOCK_CAP | \\r | |
516 | EFI_FVB2_STICKY_WRITE | \\r | |
517 | EFI_FVB2_MEMORY_MAPPED | \\r | |
518 | EFI_FVB2_ERASE_POLARITY | \\r | |
519 | EFI_FVB2_READ_LOCK_CAP | \\r | |
520 | EFI_FVB2_WRITE_LOCK_CAP | \\r | |
521 | EFI_FVB2_ALIGNMENT;\r | |
522 | \r | |
523 | //\r | |
524 | // Some attributes of FV is read only can *not* be set.\r | |
525 | //\r | |
526 | if ((OldAttributes & UnchangedAttributes) ^ (*Attributes & UnchangedAttributes)) {\r | |
527 | return EFI_INVALID_PARAMETER;\r | |
528 | }\r | |
529 | \r | |
530 | //\r | |
531 | // If firmware volume is locked, no status bit can be updated.\r | |
532 | //\r | |
533 | if ( OldAttributes & EFI_FVB2_LOCK_STATUS ) {\r | |
534 | if ( OldStatus ^ NewStatus ) {\r | |
535 | return EFI_ACCESS_DENIED;\r | |
536 | }\r | |
537 | }\r | |
538 | \r | |
539 | //\r | |
540 | // Test read disable.\r | |
541 | //\r | |
542 | if ((Capabilities & EFI_FVB2_READ_DISABLED_CAP) == 0) {\r | |
543 | if ((NewStatus & EFI_FVB2_READ_STATUS) == 0) {\r | |
544 | return EFI_INVALID_PARAMETER;\r | |
545 | }\r | |
546 | }\r | |
547 | \r | |
548 | //\r | |
549 | // Test read enable.\r | |
550 | //\r | |
551 | if ((Capabilities & EFI_FVB2_READ_ENABLED_CAP) == 0) {\r | |
552 | if (NewStatus & EFI_FVB2_READ_STATUS) {\r | |
553 | return EFI_INVALID_PARAMETER;\r | |
554 | }\r | |
555 | }\r | |
556 | \r | |
557 | //\r | |
558 | // Test write disable.\r | |
559 | //\r | |
560 | if ((Capabilities & EFI_FVB2_WRITE_DISABLED_CAP) == 0) {\r | |
561 | if ((NewStatus & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
562 | return EFI_INVALID_PARAMETER;\r | |
563 | }\r | |
564 | }\r | |
565 | \r | |
566 | //\r | |
567 | // Test write enable.\r | |
568 | //\r | |
569 | if ((Capabilities & EFI_FVB2_WRITE_ENABLED_CAP) == 0) {\r | |
570 | if (NewStatus & EFI_FVB2_WRITE_STATUS) {\r | |
571 | return EFI_INVALID_PARAMETER;\r | |
572 | }\r | |
573 | }\r | |
574 | \r | |
575 | //\r | |
576 | // Test lock.\r | |
577 | //\r | |
578 | if ((Capabilities & EFI_FVB2_LOCK_CAP) == 0) {\r | |
579 | if (NewStatus & EFI_FVB2_LOCK_STATUS) {\r | |
580 | return EFI_INVALID_PARAMETER;\r | |
581 | }\r | |
582 | }\r | |
583 | \r | |
584 | *AttribPtr = (*AttribPtr) & (0xFFFFFFFF & (~EFI_FVB2_STATUS));\r | |
585 | *AttribPtr = (*AttribPtr) | NewStatus;\r | |
586 | *Attributes = *AttribPtr;\r | |
587 | \r | |
588 | return EFI_SUCCESS;\r | |
589 | }\r | |
590 | \r | |
591 | //\r | |
592 | // FVB protocol APIs.\r | |
593 | //\r | |
594 | /**\r | |
595 | Retrieves the physical address of the device.\r | |
596 | \r | |
597 | @param[in] This A pointer to EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL.\r | |
598 | @param[out] Address Output buffer containing the address.\r | |
599 | \r | |
600 | retval EFI_SUCCESS The function always return successfully.\r | |
601 | \r | |
602 | **/\r | |
603 | EFI_STATUS\r | |
604 | EFIAPI\r | |
605 | FvbProtocolGetPhysicalAddress (\r | |
606 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
607 | OUT EFI_PHYSICAL_ADDRESS *Address\r | |
608 | )\r | |
609 | {\r | |
610 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
611 | EFI_FW_VOL_INSTANCE *FvInstance;\r | |
612 | \r | |
613 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
614 | FvInstance = GetFvbInstance(FvbDevice->Instance);\r | |
615 | \r | |
616 | if (FvInstance != NULL) {\r | |
617 | *Address = FvInstance->FvBase;\r | |
618 | }\r | |
619 | \r | |
620 | return EFI_SUCCESS;\r | |
621 | }\r | |
622 | \r | |
623 | \r | |
624 | /**\r | |
625 | Retrieve the size of a logical block.\r | |
626 | \r | |
627 | @param[in] This Calling context.\r | |
628 | @param[in] Lba Indicates which block to return the size for.\r | |
629 | @param[out] BlockSize A pointer to a caller allocated UINTN in which\r | |
630 | the size of the block is returned.\r | |
631 | @param[out] NumOfBlocks A pointer to a caller allocated UINTN in which the\r | |
632 | number of consecutive blocks starting with Lba is\r | |
633 | returned. All blocks in this range have a size of\r | |
634 | BlockSize.\r | |
635 | \r | |
636 | @retval EFI_SUCCESS The function always return successfully.\r | |
637 | \r | |
638 | **/\r | |
639 | EFI_STATUS\r | |
640 | EFIAPI\r | |
641 | FvbProtocolGetBlockSize (\r | |
642 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
643 | IN EFI_LBA Lba,\r | |
644 | OUT UINTN *BlockSize,\r | |
645 | OUT UINTN *NumOfBlocks\r | |
646 | )\r | |
647 | {\r | |
648 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
649 | \r | |
650 | DEBUG((EFI_D_INFO,\r | |
651 | "FvbProtocolGetBlockSize: Lba: 0x%lx BlockSize: 0x%x NumOfBlocks: 0x%x\n",\r | |
652 | Lba,\r | |
653 | BlockSize,\r | |
654 | NumOfBlocks)\r | |
655 | );\r | |
656 | \r | |
657 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
658 | \r | |
659 | return FvbGetLbaAddress (\r | |
660 | FvbDevice->Instance,\r | |
661 | Lba,\r | |
662 | NULL,\r | |
663 | BlockSize,\r | |
664 | NumOfBlocks\r | |
665 | );\r | |
666 | }\r | |
667 | \r | |
668 | \r | |
669 | /**\r | |
670 | Retrieves Volume attributes. No polarity translations are done.\r | |
671 | \r | |
672 | @param[in] This Calling context.\r | |
673 | @param[out] Attributes Output buffer which contains attributes.\r | |
674 | \r | |
675 | @retval EFI_SUCCESS The function always return successfully.\r | |
676 | \r | |
677 | **/\r | |
678 | EFI_STATUS\r | |
679 | EFIAPI\r | |
680 | FvbProtocolGetAttributes (\r | |
681 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
682 | OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
683 | )\r | |
684 | {\r | |
685 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
686 | \r | |
687 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
688 | \r | |
689 | *Attributes = FvbGetVolumeAttributes (FvbDevice->Instance);\r | |
690 | \r | |
691 | DEBUG ((EFI_D_INFO,\r | |
692 | "FvbProtocolGetAttributes: This: 0x%x Attributes: 0x%x\n",\r | |
693 | This,\r | |
694 | *Attributes)\r | |
695 | );\r | |
696 | \r | |
697 | return EFI_SUCCESS;\r | |
698 | }\r | |
699 | \r | |
700 | \r | |
701 | /**\r | |
702 | Sets Volume attributes. No polarity translations are done.\r | |
703 | \r | |
704 | @param[in] This Calling context.\r | |
705 | @param[out] Attributes Output buffer which contains attributes.\r | |
706 | \r | |
707 | @retval EFI_SUCCESS The function always return successfully.\r | |
708 | \r | |
709 | **/\r | |
710 | EFI_STATUS\r | |
711 | EFIAPI\r | |
712 | FvbProtocolSetAttributes (\r | |
713 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
714 | IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
715 | )\r | |
716 | {\r | |
717 | EFI_STATUS Status;\r | |
718 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
719 | \r | |
720 | DEBUG((EFI_D_INFO,\r | |
721 | "FvbProtocolSetAttributes: Before SET - This: 0x%x Attributes: 0x%x\n",\r | |
722 | This,\r | |
723 | *Attributes)\r | |
724 | );\r | |
725 | \r | |
726 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
727 | \r | |
728 | Status = FvbSetVolumeAttributes (FvbDevice->Instance, Attributes);\r | |
729 | \r | |
730 | DEBUG((EFI_D_INFO,\r | |
731 | "FvbProtocolSetAttributes: After SET - This: 0x%x Attributes: 0x%x\n",\r | |
732 | This,\r | |
733 | *Attributes)\r | |
734 | );\r | |
735 | \r | |
736 | return Status;\r | |
737 | }\r | |
738 | \r | |
739 | \r | |
740 | /**\r | |
741 | The EraseBlock() function erases one or more blocks as denoted by the\r | |
742 | variable argument list. The entire parameter list of blocks must be verified\r | |
743 | prior to erasing any blocks. If a block is requested that does not exist\r | |
744 | within the associated firmware volume (it has a larger index than the last\r | |
745 | block of the firmware volume), the EraseBlock() function must return\r | |
746 | EFI_INVALID_PARAMETER without modifying the contents of the firmware volume.\r | |
747 | \r | |
748 | @param[in] This Calling context.\r | |
749 | @param[in] ... Starting LBA followed by Number of Lba to erase.\r | |
750 | a -1 to terminate the list.\r | |
751 | \r | |
752 | @retval EFI_SUCCESS The erase request was successfully completed.\r | |
753 | @retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state.\r | |
754 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and\r | |
755 | could not be written. Firmware device may have been\r | |
756 | partially erased.\r | |
757 | \r | |
758 | **/\r | |
759 | EFI_STATUS\r | |
760 | EFIAPI\r | |
761 | FvbProtocolEraseBlocks (\r | |
762 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
763 | ...\r | |
764 | )\r | |
765 | {\r | |
766 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
767 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
768 | UINTN NumOfBlocks = 0;\r | |
769 | VA_LIST args;\r | |
770 | EFI_LBA StartingLba;\r | |
771 | UINTN NumOfLba;\r | |
772 | EFI_STATUS Status;\r | |
773 | \r | |
774 | DEBUG((EFI_D_INFO, "FvbProtocolEraseBlocks: \n"));\r | |
775 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
776 | \r | |
777 | FwhInstance = GetFvbInstance (FvbDevice->Instance);\r | |
778 | \r | |
779 | if (FwhInstance != NULL) {\r | |
780 | NumOfBlocks = FwhInstance->NumOfBlocks;\r | |
781 | }\r | |
782 | \r | |
783 | VA_START (args, This);\r | |
784 | \r | |
785 | do {\r | |
786 | StartingLba = VA_ARG (args, EFI_LBA);\r | |
787 | if ( StartingLba == EFI_LBA_LIST_TERMINATOR ) {\r | |
788 | break;\r | |
789 | }\r | |
790 | \r | |
aff463c8 | 791 | NumOfLba = VA_ARG (args, UINTN);\r |
3cbfba02 DW |
792 | \r |
793 | //\r | |
794 | // Check input parameters.\r | |
795 | //\r | |
796 | if (NumOfLba == 0) {\r | |
797 | VA_END (args);\r | |
798 | return EFI_INVALID_PARAMETER;\r | |
799 | }\r | |
800 | \r | |
801 | if ( ( StartingLba + NumOfLba ) > NumOfBlocks ) {\r | |
802 | return EFI_INVALID_PARAMETER;\r | |
803 | }\r | |
804 | } while ( 1 );\r | |
805 | \r | |
806 | VA_END (args);\r | |
807 | \r | |
808 | VA_START (args, This);\r | |
809 | do {\r | |
810 | StartingLba = VA_ARG (args, EFI_LBA);\r | |
811 | if (StartingLba == EFI_LBA_LIST_TERMINATOR) {\r | |
812 | break;\r | |
813 | }\r | |
814 | \r | |
aff463c8 | 815 | NumOfLba = VA_ARG (args, UINTN);\r |
3cbfba02 DW |
816 | \r |
817 | while ( NumOfLba > 0 ) {\r | |
818 | Status = FvbEraseBlock (FvbDevice->Instance, StartingLba);\r | |
819 | if ( EFI_ERROR(Status)) {\r | |
820 | VA_END (args);\r | |
821 | return Status;\r | |
822 | }\r | |
823 | StartingLba ++;\r | |
824 | NumOfLba --;\r | |
825 | }\r | |
826 | \r | |
827 | } while ( 1 );\r | |
828 | \r | |
829 | VA_END (args);\r | |
830 | \r | |
831 | return EFI_SUCCESS;\r | |
832 | }\r | |
833 | \r | |
834 | \r | |
835 | /**\r | |
836 | Writes data beginning at Lba:Offset from FV. The write terminates either\r | |
837 | when *NumBytes of data have been written, or when a block boundary is\r | |
838 | reached. *NumBytes is updated to reflect the actual number of bytes\r | |
839 | written. The write opertion does not include erase. This routine will\r | |
840 | attempt to write only the specified bytes. If the writes do not stick,\r | |
841 | it will return an error.\r | |
842 | \r | |
843 | @param[in] This Calling context.\r | |
844 | @param[in] Lba Block in which to begin write.\r | |
845 | @param[in] Offset Offset in the block at which to begin write.\r | |
846 | @param[in,out] NumBytes On input, indicates the requested write size. On\r | |
847 | output, indicates the actual number of bytes written\r | |
848 | @param[in] Buffer Buffer containing source data for the write.\r | |
849 | \r | |
850 | @retval EFI_SUCCESS The firmware volume was written successfully.\r | |
851 | @retval EFI_BAD_BUFFER_SIZE Write attempted across a LBA boundary. On output,\r | |
852 | NumBytes contains the total number of bytes\r | |
853 | actually written.\r | |
854 | @retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state.\r | |
855 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and\r | |
856 | could not be written.\r | |
857 | @retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL.\r | |
858 | \r | |
859 | **/\r | |
860 | EFI_STATUS\r | |
861 | EFIAPI\r | |
862 | FvbProtocolWrite (\r | |
863 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
864 | IN EFI_LBA Lba,\r | |
865 | IN UINTN Offset,\r | |
866 | IN OUT UINTN *NumBytes,\r | |
867 | IN UINT8 *Buffer\r | |
868 | )\r | |
869 | {\r | |
870 | \r | |
871 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
872 | \r | |
873 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
874 | \r | |
875 | DEBUG((EFI_D_INFO,\r | |
876 | "FvbProtocolWrite: Lba: 0x%lx Offset: 0x%x NumBytes: 0x%x, Buffer: 0x%x\n",\r | |
877 | Lba,\r | |
878 | Offset,\r | |
879 | *NumBytes,\r | |
880 | Buffer)\r | |
881 | );\r | |
882 | \r | |
883 | return FvbWriteBlock (FvbDevice->Instance, Lba, Offset, NumBytes, Buffer);\r | |
884 | }\r | |
885 | \r | |
886 | \r | |
887 | /**\r | |
888 | Reads data beginning at Lba:Offset from FV. The Read terminates either\r | |
889 | when *NumBytes of data have been read, or when a block boundary is\r | |
890 | reached. *NumBytes is updated to reflect the actual number of bytes\r | |
891 | written. The write opertion does not include erase. This routine will\r | |
892 | attempt to write only the specified bytes. If the writes do not stick,\r | |
893 | it will return an error.\r | |
894 | \r | |
895 | @param[in] This Calling context.\r | |
896 | @param[in] Lba Block in which to begin write.\r | |
897 | @param[in] Offset Offset in the block at which to begin write\r | |
898 | @param[in,out] NumBytes On input, indicates the requested write size. On\r | |
899 | output, indicates the actual number of bytes written.\r | |
900 | @param[in] Buffer Buffer containing source data for the write.\r | |
901 | \r | |
902 | \r | |
903 | Returns:\r | |
904 | @retval EFI_SUCCESS The firmware volume was read successfully and\r | |
905 | contents are in Buffer.\r | |
906 | @retval EFI_BAD_BUFFER_SIZE Read attempted across a LBA boundary. On output,\r | |
907 | NumBytes contains the total number of bytes returned\r | |
908 | in Buffer.\r | |
909 | @retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state\r | |
910 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and\r | |
911 | could not be read.\r | |
912 | @retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL.\r | |
913 | \r | |
914 | **/\r | |
915 | EFI_STATUS\r | |
916 | EFIAPI\r | |
917 | FvbProtocolRead (\r | |
918 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
919 | IN EFI_LBA Lba,\r | |
920 | IN UINTN Offset,\r | |
921 | IN OUT UINTN *NumBytes,\r | |
922 | OUT UINT8 *Buffer\r | |
923 | )\r | |
924 | {\r | |
925 | \r | |
926 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
927 | EFI_STATUS Status;\r | |
928 | \r | |
929 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
930 | Status = FvbReadBlock (FvbDevice->Instance, Lba, Offset, NumBytes, Buffer);\r | |
931 | DEBUG((EFI_D_INFO,\r | |
932 | "FvbProtocolRead: Lba: 0x%lx Offset: 0x%x NumBytes: 0x%x, Buffer: 0x%x\n",\r | |
933 | Lba,\r | |
934 | Offset,\r | |
935 | *NumBytes,\r | |
936 | Buffer)\r | |
937 | );\r | |
938 | \r | |
939 | return Status;\r | |
940 | }\r | |
941 | \r | |
942 | \r | |
943 | /**\r | |
944 | Check the integrity of firmware volume header.\r | |
945 | \r | |
946 | @param[in] FwVolHeader A pointer to a firmware volume header.\r | |
947 | \r | |
948 | @retval TRUE The firmware volume is consistent.\r | |
949 | @retval FALSE The firmware volume has corrupted.\r | |
950 | \r | |
951 | **/\r | |
952 | BOOLEAN\r | |
953 | IsFvHeaderValid (\r | |
954 | IN EFI_PHYSICAL_ADDRESS FvBase,\r | |
955 | IN CONST EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r | |
956 | )\r | |
957 | {\r | |
958 | if (FvBase == PcdGet32(PcdFlashNvStorageVariableBase)) {\r | |
959 | if (CompareMem (&FwVolHeader->FileSystemGuid, &gEfiSystemNvDataFvGuid, sizeof(EFI_GUID)) != 0 ) {\r | |
960 | return FALSE;\r | |
961 | }\r | |
962 | } else {\r | |
963 | if (CompareMem (&FwVolHeader->FileSystemGuid, &gEfiFirmwareFileSystem2Guid, sizeof(EFI_GUID)) != 0 ) {\r | |
964 | return FALSE;\r | |
965 | }\r | |
966 | }\r | |
967 | if ( (FwVolHeader->Revision != EFI_FVH_REVISION) ||\r | |
968 | (FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||\r | |
969 | (FwVolHeader->FvLength == ((UINTN) -1)) ||\r | |
970 | ((FwVolHeader->HeaderLength & 0x01 ) !=0) ) {\r | |
971 | return FALSE;\r | |
972 | }\r | |
973 | \r | |
974 | if (CalculateCheckSum16 ((UINT16 *) FwVolHeader, FwVolHeader->HeaderLength) != 0) {\r | |
975 | return FALSE;\r | |
976 | }\r | |
977 | \r | |
978 | return TRUE;\r | |
979 | }\r | |
980 | \r | |
981 | \r | |
982 | /**\r | |
983 | The function does the necessary initialization work for\r | |
984 | Firmware Volume Block Driver.\r | |
985 | \r | |
986 | @retval EFI_SUCCESS This funtion always return EFI_SUCCESS.\r | |
987 | It will ASSERT on errors.\r | |
988 | \r | |
989 | **/\r | |
990 | EFI_STATUS\r | |
991 | FvbInitialize (\r | |
992 | VOID\r | |
993 | )\r | |
994 | {\r | |
995 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
996 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
997 | EFI_FIRMWARE_VOLUME_HEADER *FvHeader;\r | |
998 | EFI_FV_BLOCK_MAP_ENTRY *PtrBlockMapEntry;\r | |
999 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
1000 | EFI_STATUS Status;\r | |
1001 | UINTN BufferSize;\r | |
1002 | UINTN TmpHeaderLength;\r | |
1003 | UINTN Idx;\r | |
1004 | UINT32 MaxLbaSize;\r | |
3cbfba02 DW |
1005 | \r |
1006 | //\r | |
1007 | // Calculate the total size for all firmware volume block instances.\r | |
1008 | //\r | |
1009 | BufferSize = 0;\r | |
1010 | for (Idx = 0; Idx < 1; Idx++) {\r | |
1011 | FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) mPlatformFvBaseAddress[Idx];\r | |
1012 | BufferSize += (FvHeader->HeaderLength +\r | |
1013 | sizeof (EFI_FW_VOL_INSTANCE) -\r | |
1014 | sizeof (EFI_FIRMWARE_VOLUME_HEADER)\r | |
1015 | );\r | |
1016 | }\r | |
1017 | \r | |
1018 | mFvbModuleGlobal.FvInstance = (EFI_FW_VOL_INSTANCE *) AllocateRuntimeZeroPool (BufferSize);\r | |
1019 | ASSERT (NULL != mFvbModuleGlobal.FvInstance);\r | |
1020 | \r | |
1021 | \r | |
1022 | MaxLbaSize = 0;\r | |
1023 | FwhInstance = mFvbModuleGlobal.FvInstance;\r | |
1024 | mFvbModuleGlobal.NumFv = 0;\r | |
1025 | \r | |
1026 | for (Idx = 0; Idx < 1; Idx++) {\r | |
1027 | BaseAddress = mPlatformFvBaseAddress[Idx];\r | |
1028 | FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) BaseAddress;\r | |
1029 | \r | |
1030 | if (!IsFvHeaderValid (BaseAddress, FwVolHeader)) {\r | |
3cbfba02 DW |
1031 | //\r |
1032 | // If not valid, get FvbInfo from the information carried in\r | |
1033 | // FVB driver.\r | |
1034 | //\r | |
1035 | DEBUG ((EFI_D_ERROR, "Fvb: FV header @ 0x%lx invalid\n", BaseAddress));\r | |
1036 | Status = GetFvbInfo (BaseAddress, &FwVolHeader);\r | |
1037 | ASSERT_EFI_ERROR(Status);\r | |
1038 | //\r | |
1039 | // Write back a healthy FV header.\r | |
1040 | //\r | |
1041 | DEBUG ((EFI_D_ERROR, "FwBlockService.c: Writing back healthy FV header\n"));\r | |
1042 | LibFvbFlashDeviceBlockLock ((UINTN)BaseAddress, FwVolHeader->BlockMap->Length, FALSE);\r | |
1043 | \r | |
1044 | Status = LibFvbFlashDeviceBlockErase ((UINTN)BaseAddress, FwVolHeader->BlockMap->Length);\r | |
1045 | \r | |
1046 | TmpHeaderLength = (UINTN) FwVolHeader->HeaderLength;\r | |
1047 | Status = LibFvbFlashDeviceWrite (\r | |
1048 | (UINTN)BaseAddress,\r | |
1049 | &TmpHeaderLength,\r | |
1050 | (UINT8 *) FwVolHeader\r | |
1051 | );\r | |
1052 | \r | |
1053 | LibFvbFlashDeviceBlockLock ((UINTN)BaseAddress, FwVolHeader->BlockMap->Length, TRUE);\r | |
1054 | \r | |
1055 | WriteBackInvalidateDataCacheRange (\r | |
1056 | (VOID *) (UINTN) BaseAddress,\r | |
1057 | FwVolHeader->BlockMap->Length\r | |
1058 | );\r | |
1059 | \r | |
1060 | }\r | |
1061 | \r | |
1062 | CopyMem (&(FwhInstance->VolumeHeader), FwVolHeader, FwVolHeader->HeaderLength);\r | |
1063 | \r | |
1064 | FwVolHeader = &(FwhInstance->VolumeHeader);\r | |
1065 | FwhInstance->FvBase = (UINTN)BaseAddress;\r | |
1066 | \r | |
1067 | //\r | |
1068 | // Process the block map for each FV.\r | |
1069 | //\r | |
1070 | FwhInstance->NumOfBlocks = 0;\r | |
1071 | for (PtrBlockMapEntry = FwVolHeader->BlockMap; PtrBlockMapEntry->NumBlocks != 0; PtrBlockMapEntry++) {\r | |
1072 | //\r | |
1073 | // Get the maximum size of a block.\r | |
1074 | //\r | |
1075 | if (MaxLbaSize < PtrBlockMapEntry->Length) {\r | |
1076 | MaxLbaSize = PtrBlockMapEntry->Length;\r | |
1077 | }\r | |
1078 | FwhInstance->NumOfBlocks += PtrBlockMapEntry->NumBlocks;\r | |
1079 | }\r | |
1080 | \r | |
1081 | //\r | |
1082 | // Add a FVB Protocol Instance.\r | |
1083 | //\r | |
1084 | mFvbModuleGlobal.NumFv++;\r | |
1085 | InstallFvbProtocol (FwhInstance, mFvbModuleGlobal.NumFv - 1);\r | |
1086 | \r | |
1087 | //\r | |
1088 | // Move on to the next FwhInstance.\r | |
1089 | //\r | |
1090 | FwhInstance = (EFI_FW_VOL_INSTANCE *) ((UINTN)((UINT8 *)FwhInstance) +\r | |
1091 | FwVolHeader->HeaderLength +\r | |
1092 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER)));\r | |
1093 | \r | |
1094 | }\r | |
1095 | \r | |
1096 | return EFI_SUCCESS;\r | |
1097 | }\r | |
1098 | \r |