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1 | /** @file\r |
2 | \r | |
0c5d4079 | 3 | Copyright (c) 2013-2016 Intel Corporation.\r |
b303605e MK |
4 | \r |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "FwBlockService.h"\r | |
17 | \r | |
18 | ESAL_FWB_GLOBAL *mFvbModuleGlobal;\r | |
b303605e MK |
19 | \r |
20 | EFI_FW_VOL_BLOCK_DEVICE mFvbDeviceTemplate = {\r | |
21 | FVB_DEVICE_SIGNATURE, // Signature\r | |
22 | //\r | |
23 | // FV_DEVICE_PATH FvDevicePath\r | |
24 | //\r | |
25 | {\r | |
26 | {\r | |
27 | {\r | |
28 | HARDWARE_DEVICE_PATH,\r | |
29 | HW_MEMMAP_DP,\r | |
30 | {\r | |
31 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),\r | |
32 | (UINT8)(sizeof (MEMMAP_DEVICE_PATH) >> 8)\r | |
33 | }\r | |
34 | },\r | |
35 | EfiMemoryMappedIO,\r | |
36 | (EFI_PHYSICAL_ADDRESS) 0,\r | |
37 | (EFI_PHYSICAL_ADDRESS) 0\r | |
38 | },\r | |
39 | {\r | |
40 | END_DEVICE_PATH_TYPE,\r | |
41 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
42 | {\r | |
43 | END_DEVICE_PATH_LENGTH,\r | |
44 | 0\r | |
45 | }\r | |
46 | }\r | |
47 | },\r | |
48 | //\r | |
49 | // UEFI_FV_DEVICE_PATH UefiFvDevicePath\r | |
50 | //\r | |
51 | {\r | |
52 | {\r | |
53 | {\r | |
54 | MEDIA_DEVICE_PATH,\r | |
55 | MEDIA_PIWG_FW_VOL_DP,\r | |
56 | {\r | |
57 | (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH)),\r | |
58 | (UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH) >> 8)\r | |
59 | }\r | |
60 | },\r | |
61 | { 0 }\r | |
62 | },\r | |
63 | {\r | |
64 | END_DEVICE_PATH_TYPE,\r | |
65 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
66 | {\r | |
67 | END_DEVICE_PATH_LENGTH,\r | |
68 | 0\r | |
69 | }\r | |
70 | }\r | |
71 | },\r | |
72 | 0, // Instance\r | |
73 | //\r | |
74 | // EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FwVolBlockInstance\r | |
75 | //\r | |
76 | {\r | |
77 | FvbProtocolGetAttributes,\r | |
78 | FvbProtocolSetAttributes,\r | |
79 | FvbProtocolGetPhysicalAddress,\r | |
80 | FvbProtocolGetBlockSize,\r | |
81 | FvbProtocolRead,\r | |
82 | FvbProtocolWrite,\r | |
83 | FvbProtocolEraseBlocks,\r | |
84 | NULL\r | |
85 | }\r | |
86 | };\r | |
87 | \r | |
88 | UINT32 mInSmmMode = 0;\r | |
89 | EFI_SMM_SYSTEM_TABLE2* mSmst = NULL;\r | |
90 | \r | |
91 | VOID\r | |
92 | PublishFlashDeviceInfo (\r | |
93 | IN SPI_INIT_TABLE *Found\r | |
94 | )\r | |
95 | /*++\r | |
96 | \r | |
97 | Routine Description:\r | |
98 | \r | |
99 | Publish info on found flash device to other drivers via PcdSpiFlashDeviceSize.\r | |
100 | \r | |
101 | Arguments:\r | |
102 | Found - Pointer to entry in mSpiInitTable for found flash part.\r | |
103 | \r | |
104 | Returns:\r | |
105 | None\r | |
106 | \r | |
107 | --*/\r | |
108 | {\r | |
109 | EFI_STATUS Status;\r | |
110 | \r | |
111 | //\r | |
112 | // Publish Byte Size of found flash device.\r | |
113 | //\r | |
114 | Status = PcdSet32S (PcdSpiFlashDeviceSize, (UINT32)(Found->BiosStartOffset + Found->BiosSize));\r | |
115 | ASSERT_EFI_ERROR (Status);\r | |
116 | }\r | |
117 | \r | |
118 | VOID\r | |
119 | FvbVirtualddressChangeEvent (\r | |
120 | IN EFI_EVENT Event,\r | |
121 | IN VOID *Context\r | |
122 | )\r | |
123 | /*++\r | |
124 | \r | |
125 | Routine Description:\r | |
126 | \r | |
127 | Fixup internal data so that EFI and SAL can be call in virtual mode.\r | |
128 | Call the passed in Child Notify event and convert the mFvbModuleGlobal\r | |
129 | date items to there virtual address.\r | |
130 | \r | |
131 | mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] - Physical copy of instance data\r | |
132 | mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] - Virtual pointer to common\r | |
133 | instance data.\r | |
134 | \r | |
135 | Arguments:\r | |
136 | \r | |
137 | (Standard EFI notify event - EFI_EVENT_NOTIFY)\r | |
138 | \r | |
139 | Returns:\r | |
140 | \r | |
141 | None\r | |
142 | \r | |
143 | --*/\r | |
144 | {\r | |
145 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
146 | UINTN Index;\r | |
147 | \r | |
148 | gRT->ConvertPointer (EFI_INTERNAL_POINTER, (VOID **) &mFvbModuleGlobal->FvInstance[FVB_VIRTUAL]);\r | |
149 | \r | |
150 | //\r | |
151 | // Convert the base address of all the instances\r | |
152 | //\r | |
153 | Index = 0;\r | |
154 | FwhInstance = mFvbModuleGlobal->FvInstance[FVB_PHYSICAL];\r | |
155 | while (Index < mFvbModuleGlobal->NumFv) {\r | |
156 | \r | |
157 | gRT->ConvertPointer (EFI_INTERNAL_POINTER, (VOID **) &FwhInstance->FvBase[FVB_VIRTUAL]);\r | |
158 | //\r | |
159 | // SpiWrite and SpiErase always use Physical Address instead of\r | |
160 | // Virtual Address, even in Runtime. So we need not convert pointer\r | |
161 | // for FvWriteBase[FVB_VIRTUAL]\r | |
162 | //\r | |
163 | // EfiConvertPointer (0, (VOID **) &FwhInstance->FvWriteBase[FVB_VIRTUAL]);\r | |
164 | //\r | |
165 | FwhInstance = (EFI_FW_VOL_INSTANCE *)\r | |
166 | (\r | |
167 | (UINTN) ((UINT8 *) FwhInstance) + FwhInstance->VolumeHeader.HeaderLength +\r | |
168 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))\r | |
169 | );\r | |
170 | Index++;\r | |
171 | }\r | |
172 | \r | |
173 | gRT->ConvertPointer (EFI_INTERNAL_POINTER, (VOID **) &mFvbModuleGlobal->FvbScratchSpace[FVB_VIRTUAL]);\r | |
174 | //\r | |
175 | // Convert SPI_PROTOCOL instance for runtime\r | |
176 | //\r | |
177 | gRT->ConvertPointer (EFI_INTERNAL_POINTER, (VOID **) &mFvbModuleGlobal->SpiProtocol);\r | |
178 | gRT->ConvertPointer (EFI_INTERNAL_POINTER, (VOID **) &mFvbModuleGlobal);\r | |
179 | }\r | |
180 | \r | |
181 | VOID\r | |
182 | FvbMemWrite8 (\r | |
183 | IN UINT64 Dest,\r | |
184 | IN UINT8 Byte\r | |
185 | )\r | |
186 | {\r | |
187 | MmioWrite8 ((UINTN)Dest, Byte);\r | |
188 | \r | |
189 | return ;\r | |
190 | }\r | |
191 | \r | |
192 | EFI_STATUS\r | |
193 | GetFvbInstance (\r | |
194 | IN UINTN Instance,\r | |
195 | IN ESAL_FWB_GLOBAL *Global,\r | |
196 | OUT EFI_FW_VOL_INSTANCE **FwhInstance,\r | |
197 | IN BOOLEAN Virtual\r | |
198 | )\r | |
199 | /*++\r | |
200 | \r | |
201 | Routine Description:\r | |
202 | Retrieves the physical address of a memory mapped FV\r | |
203 | \r | |
204 | Arguments:\r | |
205 | Instance - The FV instance whose base address is going to be\r | |
206 | returned\r | |
207 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
208 | instance data\r | |
209 | FwhInstance - The EFI_FW_VOL_INSTANCE fimrware instance structure\r | |
210 | Virtual - Whether CPU is in virtual or physical mode\r | |
211 | \r | |
212 | Returns:\r | |
213 | EFI_SUCCESS - Successfully returns\r | |
214 | EFI_INVALID_PARAMETER - Instance not found\r | |
215 | \r | |
216 | --*/\r | |
217 | {\r | |
218 | EFI_FW_VOL_INSTANCE *FwhRecord;\r | |
219 | \r | |
220 | if (Instance >= Global->NumFv) {\r | |
221 | return EFI_INVALID_PARAMETER;\r | |
222 | }\r | |
223 | //\r | |
224 | // Find the right instance of the FVB private data\r | |
225 | //\r | |
226 | FwhRecord = Global->FvInstance[Virtual];\r | |
227 | while (Instance > 0) {\r | |
228 | FwhRecord = (EFI_FW_VOL_INSTANCE *)\r | |
229 | (\r | |
230 | (UINTN) ((UINT8 *) FwhRecord) + FwhRecord->VolumeHeader.HeaderLength +\r | |
231 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))\r | |
232 | );\r | |
233 | Instance--;\r | |
234 | }\r | |
235 | \r | |
236 | *FwhInstance = FwhRecord;\r | |
237 | \r | |
238 | return EFI_SUCCESS;\r | |
239 | }\r | |
240 | \r | |
241 | EFI_STATUS\r | |
242 | FvbGetPhysicalAddress (\r | |
243 | IN UINTN Instance,\r | |
244 | OUT EFI_PHYSICAL_ADDRESS *Address,\r | |
245 | IN ESAL_FWB_GLOBAL *Global,\r | |
246 | IN BOOLEAN Virtual\r | |
247 | )\r | |
248 | /*++\r | |
249 | \r | |
250 | Routine Description:\r | |
251 | Retrieves the physical address of a memory mapped FV\r | |
252 | \r | |
253 | Arguments:\r | |
254 | Instance - The FV instance whose base address is going to be\r | |
255 | returned\r | |
256 | Address - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS\r | |
257 | that on successful return, contains the base address\r | |
258 | of the firmware volume.\r | |
259 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
260 | instance data\r | |
261 | Virtual - Whether CPU is in virtual or physical mode\r | |
262 | \r | |
263 | Returns:\r | |
264 | EFI_SUCCESS - Successfully returns\r | |
265 | EFI_INVALID_PARAMETER - Instance not found\r | |
266 | \r | |
267 | --*/\r | |
268 | {\r | |
269 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
270 | EFI_STATUS Status;\r | |
271 | \r | |
272 | FwhInstance = NULL;\r | |
273 | \r | |
274 | //\r | |
275 | // Find the right instance of the FVB private data\r | |
276 | //\r | |
277 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
278 | ASSERT_EFI_ERROR (Status);\r | |
279 | *Address = FwhInstance->FvBase[Virtual];\r | |
280 | \r | |
281 | return EFI_SUCCESS;\r | |
282 | }\r | |
283 | \r | |
284 | EFI_STATUS\r | |
285 | FvbGetVolumeAttributes (\r | |
286 | IN UINTN Instance,\r | |
287 | OUT EFI_FVB_ATTRIBUTES_2 *Attributes,\r | |
288 | IN ESAL_FWB_GLOBAL *Global,\r | |
289 | IN BOOLEAN Virtual\r | |
290 | )\r | |
291 | /*++\r | |
292 | \r | |
293 | Routine Description:\r | |
294 | Retrieves attributes, insures positive polarity of attribute bits, returns\r | |
295 | resulting attributes in output parameter\r | |
296 | \r | |
297 | Arguments:\r | |
298 | Instance - The FV instance whose attributes is going to be\r | |
299 | returned\r | |
300 | Attributes - Output buffer which contains attributes\r | |
301 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
302 | instance data\r | |
303 | Virtual - Whether CPU is in virtual or physical mode\r | |
304 | \r | |
305 | Returns:\r | |
306 | EFI_SUCCESS - Successfully returns\r | |
307 | EFI_INVALID_PARAMETER - Instance not found\r | |
308 | \r | |
309 | --*/\r | |
310 | {\r | |
311 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
312 | EFI_STATUS Status;\r | |
313 | \r | |
314 | FwhInstance = NULL;\r | |
315 | \r | |
316 | //\r | |
317 | // Find the right instance of the FVB private data\r | |
318 | //\r | |
319 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
320 | ASSERT_EFI_ERROR (Status);\r | |
321 | *Attributes = FwhInstance->VolumeHeader.Attributes;\r | |
322 | \r | |
323 | return EFI_SUCCESS;\r | |
324 | }\r | |
325 | \r | |
326 | EFI_STATUS\r | |
327 | FvbGetLbaAddress (\r | |
328 | IN UINTN Instance,\r | |
329 | IN EFI_LBA Lba,\r | |
330 | OUT UINTN *LbaAddress,\r | |
331 | OUT UINTN *LbaWriteAddress,\r | |
332 | OUT UINTN *LbaLength,\r | |
333 | OUT UINTN *NumOfBlocks,\r | |
334 | IN ESAL_FWB_GLOBAL *Global,\r | |
335 | IN BOOLEAN Virtual\r | |
336 | )\r | |
337 | /*++\r | |
338 | \r | |
339 | Routine Description:\r | |
340 | Retrieves the starting address of an LBA in an FV\r | |
341 | \r | |
342 | Arguments:\r | |
343 | Instance - The FV instance which the Lba belongs to\r | |
344 | Lba - The logical block address\r | |
345 | LbaAddress - On output, contains the physical starting address\r | |
346 | of the Lba\r | |
347 | LbaWriteAddress - On output, contains the physical starting address\r | |
348 | of the Lba for writing\r | |
349 | LbaLength - On output, contains the length of the block\r | |
350 | NumOfBlocks - A pointer to a caller allocated UINTN in which the\r | |
351 | number of consecutive blocks starting with Lba is\r | |
352 | returned. All blocks in this range have a size of\r | |
353 | BlockSize\r | |
354 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
355 | instance data\r | |
356 | Virtual - Whether CPU is in virtual or physical mode\r | |
357 | \r | |
358 | Returns:\r | |
359 | EFI_SUCCESS - Successfully returns\r | |
360 | EFI_INVALID_PARAMETER - Instance not found\r | |
361 | \r | |
362 | --*/\r | |
363 | {\r | |
364 | UINT32 NumBlocks;\r | |
365 | UINT32 BlockLength;\r | |
366 | UINTN Offset;\r | |
367 | EFI_LBA StartLba;\r | |
368 | EFI_LBA NextLba;\r | |
369 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
370 | EFI_FV_BLOCK_MAP_ENTRY *BlockMap;\r | |
371 | EFI_STATUS Status;\r | |
372 | \r | |
373 | FwhInstance = NULL;\r | |
374 | \r | |
375 | //\r | |
376 | // Find the right instance of the FVB private data\r | |
377 | //\r | |
378 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
379 | ASSERT_EFI_ERROR (Status);\r | |
380 | \r | |
381 | StartLba = 0;\r | |
382 | Offset = 0;\r | |
383 | BlockMap = &(FwhInstance->VolumeHeader.BlockMap[0]);\r | |
384 | \r | |
385 | //\r | |
386 | // Parse the blockmap of the FV to find which map entry the Lba belongs to\r | |
387 | //\r | |
388 | while (TRUE) {\r | |
389 | NumBlocks = BlockMap->NumBlocks;\r | |
390 | BlockLength = BlockMap->Length;\r | |
391 | \r | |
392 | if ((NumBlocks == 0) || (BlockLength == 0)) {\r | |
393 | return EFI_INVALID_PARAMETER;\r | |
394 | }\r | |
395 | \r | |
396 | NextLba = StartLba + NumBlocks;\r | |
397 | \r | |
398 | //\r | |
399 | // The map entry found\r | |
400 | //\r | |
401 | if (Lba >= StartLba && Lba < NextLba) {\r | |
402 | Offset = Offset + (UINTN) MultU64x32 ((Lba - StartLba), BlockLength);\r | |
403 | if (LbaAddress) {\r | |
404 | *LbaAddress = FwhInstance->FvBase[Virtual] + Offset;\r | |
405 | }\r | |
406 | \r | |
407 | if (LbaWriteAddress) {\r | |
408 | *LbaWriteAddress = FwhInstance->FvWriteBase[Virtual] + Offset;\r | |
409 | }\r | |
410 | \r | |
411 | if (LbaLength) {\r | |
412 | *LbaLength = BlockLength;\r | |
413 | }\r | |
414 | \r | |
415 | if (NumOfBlocks) {\r | |
416 | *NumOfBlocks = (UINTN) (NextLba - Lba);\r | |
417 | }\r | |
418 | \r | |
419 | return EFI_SUCCESS;\r | |
420 | }\r | |
421 | \r | |
422 | StartLba = NextLba;\r | |
423 | Offset = Offset + NumBlocks * BlockLength;\r | |
424 | BlockMap++;\r | |
425 | }\r | |
426 | }\r | |
427 | \r | |
428 | EFI_STATUS\r | |
429 | FvbReadBlock (\r | |
430 | IN UINTN Instance,\r | |
431 | IN EFI_LBA Lba,\r | |
432 | IN UINTN BlockOffset,\r | |
433 | IN OUT UINTN *NumBytes,\r | |
434 | IN UINT8 *Buffer,\r | |
435 | IN ESAL_FWB_GLOBAL *Global,\r | |
436 | IN BOOLEAN Virtual\r | |
437 | )\r | |
438 | /*++\r | |
439 | \r | |
440 | Routine Description:\r | |
441 | Reads specified number of bytes into a buffer from the specified block\r | |
442 | \r | |
443 | Arguments:\r | |
444 | Instance - The FV instance to be read from\r | |
445 | Lba - The logical block address to be read from\r | |
446 | BlockOffset - Offset into the block at which to begin reading\r | |
447 | NumBytes - Pointer that on input contains the total size of\r | |
448 | the buffer. On output, it contains the total number\r | |
449 | of bytes read\r | |
450 | Buffer - Pointer to a caller allocated buffer that will be\r | |
451 | used to hold the data read\r | |
452 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
453 | instance data\r | |
454 | Virtual - Whether CPU is in virtual or physical mode\r | |
455 | \r | |
456 | Returns:\r | |
457 | EFI_SUCCESS - The firmware volume was read successfully and\r | |
458 | contents are in Buffer\r | |
459 | EFI_BAD_BUFFER_SIZE - Read attempted across a LBA boundary. On output,\r | |
460 | NumBytes contains the total number of bytes returned\r | |
461 | in Buffer\r | |
462 | EFI_ACCESS_DENIED - The firmware volume is in the ReadDisabled state\r | |
463 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
464 | could not be read\r | |
465 | EFI_INVALID_PARAMETER - Instance not found, or NumBytes, Buffer are NULL\r | |
466 | \r | |
467 | --*/\r | |
468 | {\r | |
469 | EFI_FVB_ATTRIBUTES_2 Attributes;\r | |
470 | UINTN LbaAddress;\r | |
471 | UINTN LbaLength;\r | |
472 | EFI_STATUS Status;\r | |
473 | \r | |
474 | //\r | |
475 | // Check for invalid conditions\r | |
476 | //\r | |
477 | if ((NumBytes == NULL) || (Buffer == NULL)) {\r | |
478 | return EFI_INVALID_PARAMETER;\r | |
479 | }\r | |
480 | \r | |
481 | if (*NumBytes == 0) {\r | |
482 | return EFI_INVALID_PARAMETER;\r | |
483 | }\r | |
484 | \r | |
485 | Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, NULL, &LbaLength, NULL, Global, Virtual);\r | |
486 | if (EFI_ERROR (Status)) {\r | |
487 | return Status;\r | |
488 | }\r | |
489 | //\r | |
490 | // Check if the FV is read enabled\r | |
491 | //\r | |
492 | FvbGetVolumeAttributes (Instance, &Attributes, Global, Virtual);\r | |
493 | \r | |
494 | if ((Attributes & EFI_FVB2_READ_STATUS) == 0) {\r | |
495 | return EFI_ACCESS_DENIED;\r | |
496 | }\r | |
497 | //\r | |
498 | // Perform boundary checks and adjust NumBytes\r | |
499 | //\r | |
500 | if (BlockOffset > LbaLength) {\r | |
501 | return EFI_INVALID_PARAMETER;\r | |
502 | }\r | |
503 | \r | |
504 | if (LbaLength < (*NumBytes + BlockOffset)) {\r | |
505 | *NumBytes = (UINT32) (LbaLength - BlockOffset);\r | |
506 | Status = EFI_BAD_BUFFER_SIZE;\r | |
507 | }\r | |
508 | \r | |
509 | MmioReadBuffer8 (LbaAddress + BlockOffset, (UINTN) *NumBytes, Buffer);\r | |
510 | \r | |
511 | return Status;\r | |
512 | }\r | |
513 | \r | |
514 | EFI_STATUS\r | |
515 | FlashFdWrite (\r | |
516 | IN UINTN WriteAddress,\r | |
517 | IN UINTN Address,\r | |
518 | IN OUT UINTN *NumBytes,\r | |
519 | IN UINT8 *Buffer,\r | |
520 | IN UINTN LbaLength\r | |
521 | )\r | |
522 | /*++\r | |
523 | \r | |
524 | Routine Description:\r | |
525 | Writes specified number of bytes from the input buffer to the address\r | |
526 | \r | |
527 | Arguments:\r | |
528 | \r | |
529 | Returns:\r | |
530 | \r | |
531 | --*/\r | |
532 | {\r | |
533 | EFI_STATUS Status;\r | |
534 | \r | |
535 | Status = EFI_SUCCESS;\r | |
536 | \r | |
537 | //\r | |
538 | // TODO: Suggested that this code be "critical section"\r | |
539 | //\r | |
540 | WriteAddress -= ( PcdGet32 (PcdFlashAreaBaseAddress) );\r | |
541 | if (mInSmmMode == 0) { // !(EfiInManagementInterrupt ())) {\r | |
542 | Status = mFvbModuleGlobal->SpiProtocol->Execute (\r | |
543 | mFvbModuleGlobal->SpiProtocol,\r | |
544 | SPI_OPCODE_WRITE_INDEX, // OpcodeIndex\r | |
545 | 0, // PrefixOpcodeIndex\r | |
546 | TRUE, // DataCycle\r | |
547 | TRUE, // Atomic\r | |
548 | TRUE, // ShiftOut\r | |
549 | WriteAddress, // Address\r | |
550 | (UINT32) (*NumBytes), // Data Number\r | |
551 | Buffer,\r | |
552 | EnumSpiRegionBios\r | |
553 | );\r | |
554 | \r | |
555 | } else {\r | |
556 | Status = mFvbModuleGlobal->SmmSpiProtocol->Execute (\r | |
557 | mFvbModuleGlobal->SmmSpiProtocol,\r | |
558 | SPI_OPCODE_WRITE_INDEX, // OpcodeIndex\r | |
559 | 0, // PrefixOpcodeIndex\r | |
560 | TRUE, // DataCycle\r | |
561 | TRUE, // Atomic\r | |
562 | TRUE, // ShiftOut\r | |
563 | WriteAddress, // Address\r | |
564 | (UINT32) (*NumBytes), // Data Number\r | |
565 | Buffer,\r | |
566 | EnumSpiRegionBios\r | |
567 | );\r | |
568 | }\r | |
569 | \r | |
570 | AsmWbinvd ();\r | |
571 | \r | |
572 | return Status;\r | |
573 | }\r | |
574 | \r | |
575 | EFI_STATUS\r | |
576 | FlashFdErase (\r | |
577 | IN UINTN WriteAddress,\r | |
578 | IN UINTN Address,\r | |
579 | IN UINTN LbaLength\r | |
580 | )\r | |
581 | /*++\r | |
582 | \r | |
583 | Routine Description:\r | |
584 | Erase a certain block from address LbaWriteAddress\r | |
585 | \r | |
586 | Arguments:\r | |
587 | \r | |
588 | Returns:\r | |
589 | \r | |
590 | --*/\r | |
591 | {\r | |
592 | EFI_STATUS Status;\r | |
b303605e MK |
593 | \r |
594 | WriteAddress -= (PcdGet32 (PcdFlashAreaBaseAddress));\r | |
595 | if (mInSmmMode == 0 ) { // !(EfiInManagementInterrupt ())) {\r | |
596 | Status = mFvbModuleGlobal->SpiProtocol->Execute (\r | |
597 | mFvbModuleGlobal->SpiProtocol,\r | |
598 | SPI_OPCODE_ERASE_INDEX, // OpcodeIndex\r | |
599 | 0, // PrefixOpcodeIndex\r | |
600 | FALSE, // DataCycle\r | |
601 | TRUE, // Atomic\r | |
602 | FALSE, // ShiftOut\r | |
603 | WriteAddress, // Address\r | |
604 | 0, // Data Number\r | |
605 | NULL,\r | |
606 | EnumSpiRegionBios // SPI_REGION_TYPE\r | |
607 | );\r | |
608 | } else {\r | |
609 | Status = mFvbModuleGlobal->SmmSpiProtocol->Execute (\r | |
610 | mFvbModuleGlobal->SmmSpiProtocol,\r | |
611 | SPI_OPCODE_ERASE_INDEX, // OpcodeIndex\r | |
612 | 0, // PrefixOpcodeIndex\r | |
613 | FALSE, // DataCycle\r | |
614 | TRUE, // Atomic\r | |
615 | FALSE, // ShiftOut\r | |
616 | WriteAddress, // Address\r | |
617 | 0, // Data Number\r | |
618 | NULL,\r | |
619 | EnumSpiRegionBios // SPI_REGION_TYPE\r | |
620 | );\r | |
621 | }\r | |
622 | \r | |
623 | AsmWbinvd ();\r | |
624 | \r | |
625 | return Status;\r | |
626 | }\r | |
627 | \r | |
628 | EFI_STATUS\r | |
629 | FvbWriteBlock (\r | |
630 | IN UINTN Instance,\r | |
631 | IN EFI_LBA Lba,\r | |
632 | IN UINTN BlockOffset,\r | |
633 | IN OUT UINTN *NumBytes,\r | |
634 | IN UINT8 *Buffer,\r | |
635 | IN ESAL_FWB_GLOBAL *Global,\r | |
636 | IN BOOLEAN Virtual\r | |
637 | )\r | |
638 | /*++\r | |
639 | \r | |
640 | Routine Description:\r | |
641 | Writes specified number of bytes from the input buffer to the block\r | |
642 | \r | |
643 | Arguments:\r | |
644 | Instance - The FV instance to be written to\r | |
645 | Lba - The starting logical block index to write to\r | |
646 | BlockOffset - Offset into the block at which to begin writing\r | |
647 | NumBytes - Pointer that on input contains the total size of\r | |
648 | the buffer. On output, it contains the total number\r | |
649 | of bytes actually written\r | |
650 | Buffer - Pointer to a caller allocated buffer that contains\r | |
651 | the source for the write\r | |
652 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
653 | instance data\r | |
654 | Virtual - Whether CPU is in virtual or physical mode\r | |
655 | \r | |
656 | Returns:\r | |
657 | EFI_SUCCESS - The firmware volume was written successfully\r | |
658 | EFI_BAD_BUFFER_SIZE - Write attempted across a LBA boundary. On output,\r | |
659 | NumBytes contains the total number of bytes\r | |
660 | actually written\r | |
661 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
662 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
663 | could not be written\r | |
664 | EFI_INVALID_PARAMETER - Instance not found, or NumBytes, Buffer are NULL\r | |
665 | \r | |
666 | --*/\r | |
667 | {\r | |
668 | EFI_FVB_ATTRIBUTES_2 Attributes;\r | |
669 | UINTN LbaAddress;\r | |
670 | UINTN LbaWriteAddress;\r | |
671 | UINTN LbaLength;\r | |
672 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
673 | EFI_STATUS Status;\r | |
674 | EFI_STATUS ReturnStatus;\r | |
675 | \r | |
676 | FwhInstance = NULL;\r | |
677 | \r | |
678 | //\r | |
679 | // Find the right instance of the FVB private data\r | |
680 | //\r | |
681 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
682 | ASSERT_EFI_ERROR (Status);\r | |
683 | \r | |
684 | //\r | |
685 | // Writes are enabled in the init routine itself\r | |
686 | //\r | |
687 | if (!FwhInstance->WriteEnabled) {\r | |
688 | return EFI_ACCESS_DENIED;\r | |
689 | }\r | |
690 | //\r | |
691 | // Check for invalid conditions\r | |
692 | //\r | |
693 | if ((NumBytes == NULL) || (Buffer == NULL)) {\r | |
694 | return EFI_INVALID_PARAMETER;\r | |
695 | }\r | |
696 | \r | |
697 | if (*NumBytes == 0) {\r | |
698 | return EFI_INVALID_PARAMETER;\r | |
699 | }\r | |
700 | \r | |
701 | Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaWriteAddress, &LbaLength, NULL, Global, Virtual);\r | |
702 | if (EFI_ERROR (Status)) {\r | |
703 | return Status;\r | |
704 | }\r | |
705 | //\r | |
706 | // Check if the FV is write enabled\r | |
707 | //\r | |
708 | FvbGetVolumeAttributes (Instance, &Attributes, Global, Virtual);\r | |
709 | \r | |
710 | if ((Attributes & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
711 | return EFI_ACCESS_DENIED;\r | |
712 | }\r | |
713 | //\r | |
714 | // Perform boundary checks and adjust NumBytes\r | |
715 | //\r | |
716 | if (BlockOffset > LbaLength) {\r | |
717 | return EFI_INVALID_PARAMETER;\r | |
718 | }\r | |
719 | \r | |
720 | if (LbaLength < (*NumBytes + BlockOffset)) {\r | |
721 | *NumBytes = (UINT32) (LbaLength - BlockOffset);\r | |
722 | Status = EFI_BAD_BUFFER_SIZE;\r | |
723 | }\r | |
724 | \r | |
725 | ReturnStatus = FlashFdWrite (\r | |
726 | LbaWriteAddress + BlockOffset,\r | |
727 | LbaAddress,\r | |
728 | NumBytes,\r | |
729 | Buffer,\r | |
730 | LbaLength\r | |
731 | );\r | |
732 | if (EFI_ERROR (ReturnStatus)) {\r | |
733 | return ReturnStatus;\r | |
734 | }\r | |
735 | \r | |
736 | return Status;\r | |
737 | }\r | |
738 | \r | |
739 | EFI_STATUS\r | |
740 | FvbEraseBlock (\r | |
741 | IN UINTN Instance,\r | |
742 | IN EFI_LBA Lba,\r | |
743 | IN ESAL_FWB_GLOBAL *Global,\r | |
744 | IN BOOLEAN Virtual\r | |
745 | )\r | |
746 | /*++\r | |
747 | \r | |
748 | Routine Description:\r | |
749 | Erases and initializes a firmware volume block\r | |
750 | \r | |
751 | Arguments:\r | |
752 | Instance - The FV instance to be erased\r | |
753 | Lba - The logical block index to be erased\r | |
754 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
755 | instance data\r | |
756 | Virtual - Whether CPU is in virtual or physical mode\r | |
757 | \r | |
758 | Returns:\r | |
759 | EFI_SUCCESS - The erase request was successfully completed\r | |
760 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
761 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
762 | could not be written. Firmware device may have been\r | |
763 | partially erased\r | |
764 | EFI_INVALID_PARAMETER - Instance not found\r | |
765 | \r | |
766 | --*/\r | |
767 | {\r | |
768 | \r | |
769 | EFI_FVB_ATTRIBUTES_2 Attributes;\r | |
770 | UINTN LbaAddress;\r | |
771 | UINTN LbaWriteAddress;\r | |
772 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
773 | UINTN LbaLength;\r | |
774 | EFI_STATUS Status;\r | |
775 | UINTN SectorNum;\r | |
776 | UINTN Index;\r | |
777 | \r | |
778 | FwhInstance = NULL;\r | |
779 | \r | |
780 | //\r | |
781 | // Find the right instance of the FVB private data\r | |
782 | //\r | |
783 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
784 | ASSERT_EFI_ERROR (Status);\r | |
785 | \r | |
786 | //\r | |
787 | // Writes are enabled in the init routine itself\r | |
788 | //\r | |
789 | if (!FwhInstance->WriteEnabled) {\r | |
790 | return EFI_ACCESS_DENIED;\r | |
791 | }\r | |
792 | //\r | |
793 | // Check if the FV is write enabled\r | |
794 | //\r | |
795 | FvbGetVolumeAttributes (Instance, &Attributes, Global, Virtual);\r | |
796 | \r | |
797 | if ((Attributes & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
798 | return EFI_ACCESS_DENIED;\r | |
799 | }\r | |
800 | //\r | |
801 | // Get the starting address of the block for erase. For debug reasons,\r | |
802 | // LbaWriteAddress may not be the same as LbaAddress.\r | |
803 | //\r | |
804 | Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaWriteAddress, &LbaLength, NULL, Global, Virtual);\r | |
805 | if (EFI_ERROR (Status)) {\r | |
806 | return Status;\r | |
807 | }\r | |
808 | \r | |
809 | SectorNum = LbaLength / SPI_ERASE_SECTOR_SIZE;\r | |
810 | for (Index = 0; Index < SectorNum; Index++){\r | |
811 | Status = FlashFdErase (\r | |
812 | LbaWriteAddress + Index * SPI_ERASE_SECTOR_SIZE,\r | |
813 | LbaAddress,\r | |
814 | SPI_ERASE_SECTOR_SIZE\r | |
815 | );\r | |
816 | if (Status != EFI_SUCCESS){\r | |
817 | break;\r | |
818 | }\r | |
819 | }\r | |
820 | \r | |
821 | return Status;\r | |
822 | }\r | |
823 | \r | |
824 | EFI_STATUS\r | |
825 | FvbEraseCustomBlockRange (\r | |
826 | IN UINTN Instance,\r | |
827 | IN EFI_LBA StartLba,\r | |
828 | IN UINTN OffsetStartLba,\r | |
829 | IN EFI_LBA LastLba,\r | |
830 | IN UINTN OffsetLastLba,\r | |
831 | IN ESAL_FWB_GLOBAL *Global,\r | |
832 | IN BOOLEAN Virtual\r | |
833 | )\r | |
834 | /*++\r | |
835 | \r | |
836 | Routine Description:\r | |
837 | Erases and initializes a specified range of a firmware volume\r | |
838 | \r | |
839 | Arguments:\r | |
840 | Instance - The FV instance to be erased\r | |
841 | StartLba - The starting logical block index to be erased\r | |
842 | OffsetStartLba - Offset into the starting block at which to\r | |
843 | begin erasing\r | |
844 | LastLba - The last logical block index to be erased\r | |
845 | OffsetStartLba - Offset into the last block at which to end erasing\r | |
846 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
847 | instance data\r | |
848 | Virtual - Whether CPU is in virtual or physical mode\r | |
849 | \r | |
850 | Returns:\r | |
851 | EFI_SUCCESS - The firmware volume was erased successfully\r | |
852 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
853 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
854 | could not be written. Firmware device may have been\r | |
855 | partially erased\r | |
856 | EFI_INVALID_PARAMETER - Instance not found\r | |
857 | \r | |
858 | --*/\r | |
859 | {\r | |
860 | EFI_LBA Index;\r | |
861 | UINTN LbaSize;\r | |
862 | UINTN ScratchLbaSizeData;\r | |
863 | \r | |
864 | //\r | |
865 | // First LBA.\r | |
866 | //\r | |
867 | FvbGetLbaAddress (Instance, StartLba, NULL, NULL, &LbaSize, NULL, Global, Virtual);\r | |
868 | \r | |
869 | //\r | |
870 | // Use the scratch space as the intermediate buffer to transfer data\r | |
871 | // Back up the first LBA in scratch space.\r | |
872 | //\r | |
873 | FvbReadBlock (Instance, StartLba, 0, &LbaSize, Global->FvbScratchSpace[Virtual], Global, Virtual);\r | |
874 | \r | |
875 | //\r | |
876 | // erase now\r | |
877 | //\r | |
878 | FvbEraseBlock (Instance, StartLba, Global, Virtual);\r | |
879 | ScratchLbaSizeData = OffsetStartLba;\r | |
880 | \r | |
881 | //\r | |
882 | // write the data back to the first block\r | |
883 | //\r | |
884 | if (ScratchLbaSizeData > 0) {\r | |
885 | FvbWriteBlock (Instance, StartLba, 0, &ScratchLbaSizeData, Global->FvbScratchSpace[Virtual], Global, Virtual);\r | |
886 | }\r | |
887 | //\r | |
888 | // Middle LBAs\r | |
889 | //\r | |
890 | if (LastLba > (StartLba + 1)) {\r | |
891 | for (Index = (StartLba + 1); Index <= (LastLba - 1); Index++) {\r | |
892 | FvbEraseBlock (Instance, Index, Global, Virtual);\r | |
893 | }\r | |
894 | }\r | |
895 | //\r | |
896 | // Last LBAs, the same as first LBAs\r | |
897 | //\r | |
898 | if (LastLba > StartLba) {\r | |
899 | FvbGetLbaAddress (Instance, LastLba, NULL, NULL, &LbaSize, NULL, Global, Virtual);\r | |
900 | FvbReadBlock (Instance, LastLba, 0, &LbaSize, Global->FvbScratchSpace[Virtual], Global, Virtual);\r | |
901 | FvbEraseBlock (Instance, LastLba, Global, Virtual);\r | |
902 | }\r | |
903 | \r | |
904 | ScratchLbaSizeData = LbaSize - (OffsetStartLba + 1);\r | |
905 | \r | |
906 | return FvbWriteBlock (\r | |
907 | Instance,\r | |
908 | LastLba,\r | |
909 | (OffsetLastLba + 1),\r | |
910 | &ScratchLbaSizeData,\r | |
911 | Global->FvbScratchSpace[Virtual],\r | |
912 | Global,\r | |
913 | Virtual\r | |
914 | );\r | |
915 | }\r | |
916 | \r | |
917 | EFI_STATUS\r | |
918 | FvbSetVolumeAttributes (\r | |
919 | IN UINTN Instance,\r | |
920 | IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes,\r | |
921 | IN ESAL_FWB_GLOBAL *Global,\r | |
922 | IN BOOLEAN Virtual\r | |
923 | )\r | |
924 | /*++\r | |
925 | \r | |
926 | Routine Description:\r | |
927 | Modifies the current settings of the firmware volume according to the\r | |
928 | input parameter, and returns the new setting of the volume\r | |
929 | \r | |
930 | Arguments:\r | |
931 | Instance - The FV instance whose attributes is going to be\r | |
932 | modified\r | |
933 | Attributes - On input, it is a pointer to EFI_FVB_ATTRIBUTES_2\r | |
934 | containing the desired firmware volume settings.\r | |
935 | On successful return, it contains the new settings\r | |
936 | of the firmware volume\r | |
937 | Global - Pointer to ESAL_FWB_GLOBAL that contains all\r | |
938 | instance data\r | |
939 | Virtual - Whether CPU is in virtual or physical mode\r | |
940 | \r | |
941 | Returns:\r | |
942 | EFI_SUCCESS - Successfully returns\r | |
943 | EFI_ACCESS_DENIED - The volume setting is locked and cannot be modified\r | |
944 | EFI_INVALID_PARAMETER - Instance not found, or The attributes requested are\r | |
945 | in conflict with the capabilities as declared in the\r | |
946 | firmware volume header\r | |
947 | \r | |
948 | --*/\r | |
949 | {\r | |
950 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
951 | EFI_FVB_ATTRIBUTES_2 OldAttributes;\r | |
952 | EFI_FVB_ATTRIBUTES_2 *AttribPtr;\r | |
953 | UINT32 Capabilities;\r | |
954 | UINT32 OldStatus;\r | |
955 | UINT32 NewStatus;\r | |
956 | EFI_STATUS Status;\r | |
957 | \r | |
958 | FwhInstance = NULL;\r | |
959 | \r | |
960 | //\r | |
961 | // Find the right instance of the FVB private data\r | |
962 | //\r | |
963 | Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);\r | |
964 | ASSERT_EFI_ERROR (Status);\r | |
965 | \r | |
966 | AttribPtr = (EFI_FVB_ATTRIBUTES_2 *) &(FwhInstance->VolumeHeader.Attributes);\r | |
967 | OldAttributes = *AttribPtr;\r | |
968 | Capabilities = OldAttributes & EFI_FVB2_CAPABILITIES;\r | |
969 | OldStatus = OldAttributes & EFI_FVB2_STATUS;\r | |
970 | NewStatus = *Attributes & EFI_FVB2_STATUS;\r | |
971 | \r | |
972 | //\r | |
973 | // If firmware volume is locked, no status bit can be updated\r | |
974 | //\r | |
975 | if (OldAttributes & EFI_FVB2_LOCK_STATUS) {\r | |
976 | if (OldStatus ^ NewStatus) {\r | |
977 | return EFI_ACCESS_DENIED;\r | |
978 | }\r | |
979 | }\r | |
980 | //\r | |
981 | // Test read disable\r | |
982 | //\r | |
983 | if ((Capabilities & EFI_FVB2_READ_DISABLED_CAP) == 0) {\r | |
984 | if ((NewStatus & EFI_FVB2_READ_STATUS) == 0) {\r | |
985 | return EFI_INVALID_PARAMETER;\r | |
986 | }\r | |
987 | }\r | |
988 | //\r | |
989 | // Test read enable\r | |
990 | //\r | |
991 | if ((Capabilities & EFI_FVB2_READ_ENABLED_CAP) == 0) {\r | |
992 | if (NewStatus & EFI_FVB2_READ_STATUS) {\r | |
993 | return EFI_INVALID_PARAMETER;\r | |
994 | }\r | |
995 | }\r | |
996 | //\r | |
997 | // Test write disable\r | |
998 | //\r | |
999 | if ((Capabilities & EFI_FVB2_WRITE_DISABLED_CAP) == 0) {\r | |
1000 | if ((NewStatus & EFI_FVB2_WRITE_STATUS) == 0) {\r | |
1001 | return EFI_INVALID_PARAMETER;\r | |
1002 | }\r | |
1003 | }\r | |
1004 | //\r | |
1005 | // Test write enable\r | |
1006 | //\r | |
1007 | if ((Capabilities & EFI_FVB2_WRITE_ENABLED_CAP) == 0) {\r | |
1008 | if (NewStatus & EFI_FVB2_WRITE_STATUS) {\r | |
1009 | return EFI_INVALID_PARAMETER;\r | |
1010 | }\r | |
1011 | }\r | |
1012 | //\r | |
1013 | // Test lock\r | |
1014 | //\r | |
1015 | if ((Capabilities & EFI_FVB2_LOCK_CAP) == 0) {\r | |
1016 | if (NewStatus & EFI_FVB2_LOCK_STATUS) {\r | |
1017 | return EFI_INVALID_PARAMETER;\r | |
1018 | }\r | |
1019 | }\r | |
1020 | \r | |
1021 | *AttribPtr = (*AttribPtr) & (0xFFFFFFFF & (~EFI_FVB2_STATUS));\r | |
1022 | *AttribPtr = (*AttribPtr) | NewStatus;\r | |
1023 | *Attributes = *AttribPtr;\r | |
1024 | \r | |
1025 | return EFI_SUCCESS;\r | |
1026 | }\r | |
1027 | //\r | |
1028 | // FVB protocol APIs\r | |
1029 | //\r | |
1030 | EFI_STATUS\r | |
1031 | EFIAPI\r | |
1032 | FvbProtocolGetPhysicalAddress (\r | |
1033 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1034 | OUT EFI_PHYSICAL_ADDRESS *Address\r | |
1035 | )\r | |
1036 | /*++\r | |
1037 | \r | |
1038 | Routine Description:\r | |
1039 | \r | |
1040 | Retrieves the physical address of the device.\r | |
1041 | \r | |
1042 | Arguments:\r | |
1043 | \r | |
1044 | This - Calling context\r | |
1045 | Address - Output buffer containing the address.\r | |
1046 | \r | |
1047 | Returns:\r | |
1048 | \r | |
1049 | Returns:\r | |
1050 | EFI_SUCCESS - Successfully returns\r | |
1051 | \r | |
1052 | --*/\r | |
1053 | {\r | |
1054 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1055 | \r | |
1056 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1057 | \r | |
1058 | return FvbGetPhysicalAddress (FvbDevice->Instance, Address, mFvbModuleGlobal, EfiGoneVirtual ());\r | |
1059 | }\r | |
1060 | \r | |
1061 | EFI_STATUS\r | |
1062 | FvbProtocolGetBlockSize (\r | |
1063 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1064 | IN EFI_LBA Lba,\r | |
1065 | OUT UINTN *BlockSize,\r | |
1066 | OUT UINTN *NumOfBlocks\r | |
1067 | )\r | |
1068 | /*++\r | |
1069 | \r | |
1070 | Routine Description:\r | |
1071 | Retrieve the size of a logical block\r | |
1072 | \r | |
1073 | Arguments:\r | |
1074 | This - Calling context\r | |
1075 | Lba - Indicates which block to return the size for.\r | |
1076 | BlockSize - A pointer to a caller allocated UINTN in which\r | |
1077 | the size of the block is returned\r | |
1078 | NumOfBlocks - a pointer to a caller allocated UINTN in which the\r | |
1079 | number of consecutive blocks starting with Lba is\r | |
1080 | returned. All blocks in this range have a size of\r | |
1081 | BlockSize\r | |
1082 | \r | |
1083 | Returns:\r | |
1084 | EFI_SUCCESS - The firmware volume was read successfully and\r | |
1085 | contents are in Buffer\r | |
1086 | \r | |
1087 | --*/\r | |
1088 | {\r | |
1089 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1090 | \r | |
1091 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1092 | \r | |
1093 | return FvbGetLbaAddress (\r | |
1094 | FvbDevice->Instance,\r | |
1095 | Lba,\r | |
1096 | NULL,\r | |
1097 | NULL,\r | |
1098 | BlockSize,\r | |
1099 | NumOfBlocks,\r | |
1100 | mFvbModuleGlobal,\r | |
1101 | EfiGoneVirtual ()\r | |
1102 | );\r | |
1103 | }\r | |
1104 | \r | |
1105 | EFI_STATUS\r | |
1106 | EFIAPI\r | |
1107 | FvbProtocolGetAttributes (\r | |
1108 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1109 | OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
1110 | )\r | |
1111 | /*++\r | |
1112 | \r | |
1113 | Routine Description:\r | |
1114 | Retrieves Volume attributes. No polarity translations are done.\r | |
1115 | \r | |
1116 | Arguments:\r | |
1117 | This - Calling context\r | |
1118 | Attributes - output buffer which contains attributes\r | |
1119 | \r | |
1120 | Returns:\r | |
1121 | EFI_SUCCESS - Successfully returns\r | |
1122 | \r | |
1123 | --*/\r | |
1124 | {\r | |
1125 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1126 | \r | |
1127 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1128 | \r | |
1129 | return FvbGetVolumeAttributes (FvbDevice->Instance, Attributes, mFvbModuleGlobal, EfiGoneVirtual ());\r | |
1130 | }\r | |
1131 | \r | |
1132 | EFI_STATUS\r | |
1133 | EFIAPI\r | |
1134 | FvbProtocolSetAttributes (\r | |
1135 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1136 | IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes\r | |
1137 | )\r | |
1138 | /*++\r | |
1139 | \r | |
1140 | Routine Description:\r | |
1141 | Sets Volume attributes. No polarity translations are done.\r | |
1142 | \r | |
1143 | Arguments:\r | |
1144 | This - Calling context\r | |
1145 | Attributes - output buffer which contains attributes\r | |
1146 | \r | |
1147 | Returns:\r | |
1148 | EFI_SUCCESS - Successfully returns\r | |
1149 | \r | |
1150 | --*/\r | |
1151 | {\r | |
1152 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1153 | \r | |
1154 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1155 | \r | |
1156 | return FvbSetVolumeAttributes (FvbDevice->Instance, Attributes, mFvbModuleGlobal, EfiGoneVirtual ());\r | |
1157 | }\r | |
1158 | \r | |
1159 | EFI_STATUS\r | |
1160 | EFIAPI\r | |
1161 | FvbProtocolEraseBlocks (\r | |
1162 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1163 | ...\r | |
1164 | )\r | |
1165 | /*++\r | |
1166 | \r | |
1167 | Routine Description:\r | |
1168 | \r | |
1169 | The EraseBlock() function erases one or more blocks as denoted by the\r | |
1170 | variable argument list. The entire parameter list of blocks must be verified\r | |
1171 | prior to erasing any blocks. If a block is requested that does not exist\r | |
1172 | within the associated firmware volume (it has a larger index than the last\r | |
1173 | block of the firmware volume), the EraseBlock() function must return\r | |
1174 | EFI_INVALID_PARAMETER without modifying the contents of the firmware volume.\r | |
1175 | \r | |
1176 | Arguments:\r | |
1177 | This - Calling context\r | |
1178 | ... - Starting LBA followed by Number of Lba to erase.\r | |
1179 | a -1 to terminate the list.\r | |
1180 | \r | |
1181 | Returns:\r | |
1182 | EFI_SUCCESS - The erase request was successfully completed\r | |
1183 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
1184 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
1185 | could not be written. Firmware device may have been\r | |
1186 | partially erased\r | |
1187 | \r | |
1188 | --*/\r | |
1189 | {\r | |
1190 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1191 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
1192 | UINTN NumOfBlocks;\r | |
1193 | VA_LIST args;\r | |
1194 | EFI_LBA StartingLba;\r | |
1195 | UINTN NumOfLba;\r | |
1196 | EFI_STATUS Status;\r | |
1197 | \r | |
1198 | FwhInstance = NULL;\r | |
1199 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1200 | \r | |
1201 | Status = GetFvbInstance (FvbDevice->Instance, mFvbModuleGlobal, &FwhInstance, EfiGoneVirtual ());\r | |
1202 | ASSERT_EFI_ERROR (Status);\r | |
1203 | \r | |
1204 | NumOfBlocks = FwhInstance->NumOfBlocks;\r | |
1205 | \r | |
1206 | VA_START (args, This);\r | |
1207 | \r | |
1208 | do {\r | |
1209 | StartingLba = VA_ARG (args, EFI_LBA);\r | |
1210 | if (StartingLba == EFI_LBA_LIST_TERMINATOR) {\r | |
1211 | break;\r | |
1212 | }\r | |
1213 | \r | |
b9036ebe | 1214 | NumOfLba = VA_ARG (args, UINTN);\r |
b303605e MK |
1215 | \r |
1216 | //\r | |
1217 | // Check input parameters\r | |
1218 | //\r | |
1219 | if (NumOfLba == 0) {\r | |
1220 | VA_END (args);\r | |
1221 | return EFI_INVALID_PARAMETER;\r | |
1222 | }\r | |
1223 | \r | |
1224 | if ((StartingLba + NumOfLba) > NumOfBlocks) {\r | |
1225 | return EFI_INVALID_PARAMETER;\r | |
1226 | }\r | |
1227 | } while (TRUE);\r | |
1228 | \r | |
1229 | VA_END (args);\r | |
1230 | \r | |
1231 | VA_START (args, This);\r | |
1232 | do {\r | |
1233 | StartingLba = VA_ARG (args, EFI_LBA);\r | |
1234 | if (StartingLba == EFI_LBA_LIST_TERMINATOR) {\r | |
1235 | break;\r | |
1236 | }\r | |
1237 | \r | |
b9036ebe | 1238 | NumOfLba = VA_ARG (args, UINTN);\r |
b303605e MK |
1239 | \r |
1240 | while (NumOfLba > 0) {\r | |
1241 | Status = FvbEraseBlock (FvbDevice->Instance, StartingLba, mFvbModuleGlobal, EfiGoneVirtual ());\r | |
1242 | if (EFI_ERROR (Status)) {\r | |
1243 | VA_END (args);\r | |
1244 | return Status;\r | |
1245 | }\r | |
1246 | \r | |
1247 | StartingLba++;\r | |
1248 | NumOfLba--;\r | |
1249 | }\r | |
1250 | \r | |
1251 | } while (TRUE);\r | |
1252 | \r | |
1253 | VA_END (args);\r | |
1254 | \r | |
1255 | return EFI_SUCCESS;\r | |
1256 | }\r | |
1257 | \r | |
1258 | EFI_STATUS\r | |
1259 | EFIAPI\r | |
1260 | FvbProtocolWrite (\r | |
1261 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1262 | IN EFI_LBA Lba,\r | |
1263 | IN UINTN Offset,\r | |
1264 | IN OUT UINTN *NumBytes,\r | |
1265 | IN UINT8 *Buffer\r | |
1266 | )\r | |
1267 | /*++\r | |
1268 | \r | |
1269 | Routine Description:\r | |
1270 | \r | |
1271 | Writes data beginning at Lba:Offset from FV. The write terminates either\r | |
1272 | when *NumBytes of data have been written, or when a block boundary is\r | |
1273 | reached. *NumBytes is updated to reflect the actual number of bytes\r | |
1274 | written. The write opertion does not include erase. This routine will\r | |
1275 | attempt to write only the specified bytes. If the writes do not stick,\r | |
1276 | it will return an error.\r | |
1277 | \r | |
1278 | Arguments:\r | |
1279 | This - Calling context\r | |
1280 | Lba - Block in which to begin write\r | |
1281 | Offset - Offset in the block at which to begin write\r | |
1282 | NumBytes - On input, indicates the requested write size. On\r | |
1283 | output, indicates the actual number of bytes written\r | |
1284 | Buffer - Buffer containing source data for the write.\r | |
1285 | \r | |
1286 | Returns:\r | |
1287 | EFI_SUCCESS - The firmware volume was written successfully\r | |
1288 | EFI_BAD_BUFFER_SIZE - Write attempted across a LBA boundary. On output,\r | |
1289 | NumBytes contains the total number of bytes\r | |
1290 | actually written\r | |
1291 | EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state\r | |
1292 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
1293 | could not be written\r | |
1294 | EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL\r | |
1295 | \r | |
1296 | --*/\r | |
1297 | {\r | |
1298 | \r | |
1299 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1300 | \r | |
1301 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1302 | \r | |
1303 | return FvbWriteBlock (FvbDevice->Instance, Lba, Offset, NumBytes, Buffer, mFvbModuleGlobal, EfiGoneVirtual ());\r | |
1304 | }\r | |
1305 | \r | |
1306 | EFI_STATUS\r | |
1307 | EFIAPI\r | |
1308 | FvbProtocolRead (\r | |
1309 | IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,\r | |
1310 | IN EFI_LBA Lba,\r | |
1311 | IN UINTN Offset,\r | |
1312 | IN OUT UINTN *NumBytes,\r | |
1313 | IN UINT8 *Buffer\r | |
1314 | )\r | |
1315 | /*++\r | |
1316 | \r | |
1317 | Routine Description:\r | |
1318 | \r | |
1319 | Reads data beginning at Lba:Offset from FV. The Read terminates either\r | |
1320 | when *NumBytes of data have been read, or when a block boundary is\r | |
1321 | reached. *NumBytes is updated to reflect the actual number of bytes\r | |
1322 | written. The write opertion does not include erase. This routine will\r | |
1323 | attempt to write only the specified bytes. If the writes do not stick,\r | |
1324 | it will return an error.\r | |
1325 | \r | |
1326 | Arguments:\r | |
1327 | This - Calling context\r | |
1328 | Lba - Block in which to begin Read\r | |
1329 | Offset - Offset in the block at which to begin Read\r | |
1330 | NumBytes - On input, indicates the requested write size. On\r | |
1331 | output, indicates the actual number of bytes Read\r | |
1332 | Buffer - Buffer containing source data for the Read.\r | |
1333 | \r | |
1334 | Returns:\r | |
1335 | EFI_SUCCESS - The firmware volume was read successfully and\r | |
1336 | contents are in Buffer\r | |
1337 | EFI_BAD_BUFFER_SIZE - Read attempted across a LBA boundary. On output,\r | |
1338 | NumBytes contains the total number of bytes returned\r | |
1339 | in Buffer\r | |
1340 | EFI_ACCESS_DENIED - The firmware volume is in the ReadDisabled state\r | |
1341 | EFI_DEVICE_ERROR - The block device is not functioning correctly and\r | |
1342 | could not be read\r | |
1343 | EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL\r | |
1344 | \r | |
1345 | --*/\r | |
1346 | {\r | |
1347 | \r | |
1348 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1349 | EFI_STATUS Status;\r | |
1350 | \r | |
1351 | FvbDevice = FVB_DEVICE_FROM_THIS (This);\r | |
1352 | Status = FvbReadBlock (FvbDevice->Instance, Lba, Offset, NumBytes, Buffer, mFvbModuleGlobal, EfiGoneVirtual ());\r | |
1353 | \r | |
1354 | return Status;\r | |
1355 | }\r | |
1356 | \r | |
1357 | EFI_STATUS\r | |
1358 | ValidateFvHeader (\r | |
1359 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r | |
1360 | )\r | |
1361 | /*++\r | |
1362 | \r | |
1363 | Routine Description:\r | |
1364 | Check the integrity of firmware volume header\r | |
1365 | \r | |
1366 | Arguments:\r | |
1367 | FwVolHeader - A pointer to a firmware volume header\r | |
1368 | \r | |
1369 | Returns:\r | |
1370 | EFI_SUCCESS - The firmware volume is consistent\r | |
1371 | EFI_NOT_FOUND - The firmware volume has corrupted. So it is not an FV\r | |
1372 | \r | |
1373 | --*/\r | |
1374 | {\r | |
1375 | UINT16 *Ptr;\r | |
1376 | UINT16 HeaderLength;\r | |
1377 | UINT16 Checksum;\r | |
1378 | \r | |
1379 | //\r | |
1380 | // Verify the header revision, header signature, length\r | |
1381 | // Length of FvBlock cannot be 2**64-1\r | |
1382 | // HeaderLength cannot be an odd number\r | |
1383 | //\r | |
1384 | #ifndef R864_BUILD\r | |
1385 | if (((FwVolHeader->Revision != EFI_FVH_REVISION) && (FwVolHeader->Revision != EFI_FVH_REVISION)) ||\r | |
1386 | #else\r | |
1387 | if ((FwVolHeader->Revision != EFI_FVH_REVISION) ||\r | |
1388 | #endif\r | |
1389 | (FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||\r | |
1390 | (FwVolHeader->FvLength == ((UINTN) -1)) ||\r | |
1391 | ((FwVolHeader->HeaderLength & 0x01) != 0)\r | |
1392 | ) {\r | |
1393 | return EFI_NOT_FOUND;\r | |
1394 | }\r | |
1395 | //\r | |
1396 | // Verify the header checksum\r | |
1397 | //\r | |
1398 | HeaderLength = (UINT16) (FwVolHeader->HeaderLength / 2);\r | |
1399 | Ptr = (UINT16 *) FwVolHeader;\r | |
1400 | Checksum = 0;\r | |
1401 | while (HeaderLength > 0) {\r | |
1402 | Checksum = Checksum + (*Ptr);\r | |
1403 | Ptr++;\r | |
1404 | HeaderLength--;\r | |
1405 | }\r | |
1406 | \r | |
1407 | if (Checksum != 0) {\r | |
1408 | return EFI_NOT_FOUND;\r | |
1409 | }\r | |
1410 | \r | |
1411 | return EFI_SUCCESS;\r | |
1412 | }\r | |
1413 | \r | |
1414 | EFI_STATUS\r | |
1415 | GetFvbHeader (\r | |
1416 | VOID **HobList,\r | |
1417 | OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader,\r | |
1418 | OUT EFI_PHYSICAL_ADDRESS *BaseAddress,\r | |
1419 | OUT BOOLEAN *WriteBack\r | |
1420 | )\r | |
1421 | {\r | |
1422 | EFI_STATUS Status;\r | |
1423 | \r | |
1424 | Status = EFI_SUCCESS;\r | |
1425 | *WriteBack = FALSE;\r | |
1426 | \r | |
1427 | if (*FwVolHeader == NULL) {\r | |
1428 | *BaseAddress = PcdGet32 (PcdFlashFvRecoveryBase);\r | |
1429 | } else if (*FwVolHeader == (VOID *)(UINTN)PcdGet32 (PcdFlashFvRecoveryBase)) {\r | |
1430 | *BaseAddress = PcdGet32 (PcdFlashFvMainBase);\r | |
1431 | } else if (*FwVolHeader == (VOID *)(UINTN)PcdGet32 (PcdFlashFvMainBase)) {\r | |
1432 | *BaseAddress = PcdGet32 (PcdFlashNvStorageVariableBase);\r | |
1433 | } else {\r | |
1434 | return EFI_NOT_FOUND;\r | |
1435 | }\r | |
1436 | \r | |
1437 | DEBUG((EFI_D_INFO, "Fvb base : %08x\n",*BaseAddress));\r | |
1438 | \r | |
1439 | *FwVolHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) (*BaseAddress);\r | |
1440 | Status = ValidateFvHeader (*FwVolHeader);\r | |
1441 | if (EFI_ERROR (Status)) {\r | |
1442 | //\r | |
1443 | // Get FvbInfo\r | |
1444 | //\r | |
1445 | *WriteBack = TRUE;\r | |
1446 | \r | |
1447 | Status = GetFvbInfo (*BaseAddress, FwVolHeader);\r | |
1448 | DEBUG(( DEBUG_ERROR, "Through GetFvbInfo: %08x!\n",*BaseAddress));\r | |
1449 | \r | |
1450 | ASSERT_EFI_ERROR (Status);\r | |
1451 | }\r | |
1452 | \r | |
1453 | return EFI_SUCCESS;\r | |
1454 | }\r | |
1455 | \r | |
1456 | \r | |
1457 | EFI_STATUS\r | |
1458 | SmmSpiInit (\r | |
1459 | VOID\r | |
1460 | )\r | |
1461 | {\r | |
1462 | UINT8 SpiStatus;\r | |
1463 | UINT8 FlashIndex;\r | |
1464 | UINT8 FlashID[3];\r | |
1465 | EFI_STATUS Status;\r | |
1466 | \r | |
1467 | //\r | |
1468 | // Obtain a handle for ICH SPI Protocol\r | |
1469 | //\r | |
1470 | ASSERT(mSmst != NULL);\r | |
1471 | if (mFvbModuleGlobal->SmmSpiProtocol == NULL){\r | |
1472 | Status = mSmst->SmmLocateProtocol (&gEfiSmmSpiProtocolGuid, NULL, (VOID **) &mFvbModuleGlobal->SmmSpiProtocol);\r | |
1473 | ASSERT_EFI_ERROR(Status);\r | |
1474 | }\r | |
1475 | //\r | |
1476 | // attempt to identify flash part and initialize spi table\r | |
1477 | //\r | |
1478 | for (FlashIndex = 0; FlashIndex < EnumSpiFlashMax; FlashIndex++) {\r | |
1479 | Status = mFvbModuleGlobal->SmmSpiProtocol->Init (\r | |
1480 | mFvbModuleGlobal->SmmSpiProtocol,\r | |
1481 | &(mSpiInitTable[FlashIndex])\r | |
1482 | );\r | |
1483 | if (!EFI_ERROR (Status)) {\r | |
1484 | //\r | |
1485 | // read vendor/device IDs to check if flash device is supported\r | |
1486 | //\r | |
1487 | Status = mFvbModuleGlobal->SmmSpiProtocol->Execute (\r | |
1488 | mFvbModuleGlobal->SmmSpiProtocol,\r | |
1489 | SPI_OPCODE_JEDEC_ID_INDEX,\r | |
1490 | SPI_WREN_INDEX,\r | |
1491 | TRUE,\r | |
1492 | FALSE,\r | |
1493 | FALSE,\r | |
1494 | 0,\r | |
1495 | 3,\r | |
1496 | FlashID,\r | |
1497 | EnumSpiRegionAll\r | |
1498 | );\r | |
1499 | if (!EFI_ERROR (Status)) {\r | |
1500 | if (((FlashID[0] == mSpiInitTable[FlashIndex].VendorId) &&\r | |
1501 | (FlashID[2] == mSpiInitTable[FlashIndex].DeviceId1)) ||\r | |
1502 | ((FlashID[0] == SPI_AT26DF321_ID1) &&\r | |
1503 | (FlashID[0] == mSpiInitTable[FlashIndex].VendorId) &&\r | |
1504 | (FlashID[1] == mSpiInitTable[FlashIndex].DeviceId0))) {\r | |
1505 | //\r | |
1506 | // Supported SPI device found\r | |
1507 | //\r | |
1508 | DEBUG (\r | |
1509 | ((EFI_D_INFO),\r | |
1510 | "Smm Mode: Supported SPI Flash device found, Vendor Id: 0x%02x, Device ID: 0x%02x%02x!\n",\r | |
1511 | FlashID[0],\r | |
1512 | FlashID[1],\r | |
1513 | FlashID[2])\r | |
1514 | );\r | |
1515 | break;\r | |
1516 | }\r | |
1517 | }\r | |
1518 | }\r | |
1519 | }\r | |
1520 | \r | |
1521 | if (FlashIndex >= EnumSpiFlashMax) {\r | |
1522 | Status = EFI_UNSUPPORTED;\r | |
1523 | DEBUG (\r | |
1524 | (EFI_D_ERROR,\r | |
1525 | "ERROR - Unknown SPI Flash Device, Vendor Id: 0x%02x, Device ID: 0x%02x%02x!\n",\r | |
1526 | FlashID[0],\r | |
1527 | FlashID[1],\r | |
1528 | FlashID[2])\r | |
1529 | );\r | |
1530 | ASSERT_EFI_ERROR (Status);\r | |
1531 | }\r | |
1532 | \r | |
1533 | SpiStatus = 0;\r | |
1534 | Status = mFvbModuleGlobal->SmmSpiProtocol->Execute (\r | |
1535 | mFvbModuleGlobal->SmmSpiProtocol,\r | |
1536 | SPI_OPCODE_WRITE_S_INDEX, // OpcodeIndex\r | |
1537 | 1, // PrefixOpcodeIndex\r | |
1538 | TRUE, // DataCycle\r | |
1539 | TRUE, // Atomic\r | |
1540 | TRUE, // ShiftOut\r | |
1541 | 0, // Address\r | |
1542 | 1, // Data Number\r | |
1543 | &SpiStatus,\r | |
1544 | EnumSpiRegionAll // SPI_REGION_TYPE\r | |
1545 | );\r | |
1546 | return Status;\r | |
1547 | }\r | |
1548 | \r | |
1549 | EFI_STATUS\r | |
1550 | SmmSpiNotificationFunction (\r | |
1551 | IN CONST EFI_GUID *Protocol,\r | |
1552 | IN VOID *Interface,\r | |
1553 | IN EFI_HANDLE Handle\r | |
1554 | )\r | |
1555 | {\r | |
1556 | return SmmSpiInit();\r | |
1557 | }\r | |
1558 | \r | |
1559 | \r | |
1560 | VOID\r | |
1561 | EFIAPI\r | |
1562 | GetFullDriverPath (\r | |
1563 | IN EFI_HANDLE ImageHandle,\r | |
1564 | IN EFI_SYSTEM_TABLE *SystemTable,\r | |
1565 | OUT EFI_DEVICE_PATH_PROTOCOL **CompleteFilePath\r | |
1566 | )\r | |
1567 | /*++\r | |
1568 | \r | |
1569 | Routine Description:\r | |
1570 | \r | |
1571 | Function is used to get the full device path for this driver.\r | |
1572 | \r | |
1573 | Arguments:\r | |
1574 | \r | |
1575 | ImageHandle - The loaded image handle of this driver.\r | |
1576 | SystemTable - The pointer of system table.\r | |
1577 | CompleteFilePath - The pointer of returned full file path\r | |
1578 | \r | |
1579 | Returns:\r | |
1580 | \r | |
1581 | none\r | |
1582 | \r | |
1583 | --*/\r | |
1584 | {\r | |
1585 | EFI_STATUS Status;\r | |
1586 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
1587 | EFI_DEVICE_PATH_PROTOCOL *ImageDevicePath;\r | |
1588 | \r | |
1589 | \r | |
1590 | Status = gBS->HandleProtocol (\r | |
1591 | ImageHandle,\r | |
1592 | &gEfiLoadedImageProtocolGuid,\r | |
1593 | (VOID **) &LoadedImage\r | |
1594 | );\r | |
1595 | ASSERT_EFI_ERROR (Status);\r | |
1596 | \r | |
1597 | Status = gBS->HandleProtocol (\r | |
1598 | LoadedImage->DeviceHandle,\r | |
1599 | &gEfiDevicePathProtocolGuid,\r | |
1600 | (VOID *) &ImageDevicePath\r | |
1601 | );\r | |
1602 | ASSERT_EFI_ERROR (Status);\r | |
1603 | \r | |
1604 | *CompleteFilePath = AppendDevicePath (\r | |
1605 | ImageDevicePath,\r | |
1606 | LoadedImage->FilePath\r | |
1607 | );\r | |
1608 | \r | |
1609 | return ;\r | |
1610 | }\r | |
1611 | \r | |
1612 | \r | |
1613 | \r | |
1614 | EFI_STATUS\r | |
1615 | FvbInitialize (\r | |
1616 | IN EFI_HANDLE ImageHandle,\r | |
1617 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1618 | )\r | |
1619 | /*++\r | |
1620 | \r | |
1621 | Routine Description:\r | |
1622 | This function does common initialization for FVB services\r | |
1623 | \r | |
1624 | Arguments:\r | |
1625 | \r | |
1626 | Returns:\r | |
1627 | \r | |
1628 | --*/\r | |
1629 | {\r | |
1630 | EFI_STATUS Status;\r | |
1631 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
1632 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
1633 | EFI_FIRMWARE_VOLUME_HEADER *TempFwVolHeader;\r | |
1634 | VOID *HobList;\r | |
1635 | VOID *FirmwareVolumeHobList;\r | |
1636 | UINT32 BufferSize;\r | |
1637 | EFI_FV_BLOCK_MAP_ENTRY *PtrBlockMapEntry;\r | |
b303605e MK |
1638 | BOOLEAN WriteEnabled;\r |
1639 | BOOLEAN WriteLocked;\r | |
1640 | EFI_HANDLE FwbHandle;\r | |
1641 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
1642 | EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *OldFwbInterface;\r | |
1643 | EFI_DEVICE_PATH_PROTOCOL *FwbDevicePath;\r | |
1644 | EFI_DEVICE_PATH_PROTOCOL *TempFwbDevicePath;\r | |
1645 | UINT32 MaxLbaSize;\r | |
1646 | EFI_PHYSICAL_ADDRESS BaseAddress;\r | |
1647 | BOOLEAN WriteBack;\r | |
1648 | UINTN NumOfBlocks;\r | |
1649 | UINTN HeaderLength;\r | |
1650 | UINT8 SpiStatus;\r | |
1651 | UINT8 FlashIndex;\r | |
1652 | UINT8 FlashID[3];\r | |
1653 | EFI_DEVICE_PATH_PROTOCOL *CompleteFilePath;\r | |
1654 | UINT8 PrefixOpcodeIndex;\r | |
1655 | BOOLEAN InSmm;\r | |
1656 | EFI_SMM_BASE2_PROTOCOL *mSmmBase2;\r | |
1657 | EFI_HANDLE Handle;\r | |
1658 | \r | |
1659 | VOID *Registration;\r | |
1660 | EFI_EVENT Event;\r | |
1661 | \r | |
1662 | CompleteFilePath = NULL;\r | |
1663 | GetFullDriverPath (ImageHandle, SystemTable, &CompleteFilePath);\r | |
1664 | \r | |
1665 | Status = EfiGetSystemConfigurationTable (&gEfiHobListGuid, &HobList);\r | |
1666 | \r | |
1667 | //\r | |
1668 | // No FV HOBs found\r | |
1669 | //\r | |
1670 | ASSERT_EFI_ERROR (Status);\r | |
1671 | \r | |
1672 | \r | |
1673 | //\r | |
1674 | // Allocate runtime services data for global variable, which contains\r | |
1675 | // the private data of all firmware volume block instances\r | |
1676 | //\r | |
1677 | mFvbModuleGlobal = (ESAL_FWB_GLOBAL *)AllocateRuntimeZeroPool(sizeof (ESAL_FWB_GLOBAL ));\r | |
1678 | ASSERT(mFvbModuleGlobal);\r | |
1679 | mSmmBase2 = NULL;\r | |
1680 | Status = gBS->LocateProtocol (\r | |
1681 | &gEfiSmmBase2ProtocolGuid,\r | |
1682 | NULL,\r | |
1683 | (VOID **) &mSmmBase2\r | |
1684 | );\r | |
1685 | \r | |
1686 | if (mSmmBase2 == NULL) {\r | |
1687 | InSmm = FALSE;\r | |
1688 | } else {\r | |
1689 | mSmmBase2->InSmm (mSmmBase2, &InSmm);\r | |
1690 | mSmmBase2->GetSmstLocation (mSmmBase2, &mSmst);\r | |
1691 | \r | |
1692 | }\r | |
1693 | \r | |
1694 | if (!InSmm) {\r | |
1695 | mInSmmMode = 0;\r | |
1696 | //\r | |
1697 | // Obtain a handle for ICH SPI Protocol\r | |
1698 | //\r | |
1699 | Status = gBS->LocateProtocol (&gEfiSpiProtocolGuid, NULL, (VOID **) &mFvbModuleGlobal->SpiProtocol);\r | |
1700 | ASSERT_EFI_ERROR (Status);\r | |
1701 | \r | |
1702 | //\r | |
1703 | // attempt to identify flash part and initialize spi table\r | |
1704 | //\r | |
1705 | for (FlashIndex = 0; FlashIndex < EnumSpiFlashMax; FlashIndex++) {\r | |
1706 | Status = mFvbModuleGlobal->SpiProtocol->Init (\r | |
1707 | mFvbModuleGlobal->SpiProtocol,\r | |
1708 | &(mSpiInitTable[FlashIndex])\r | |
1709 | );\r | |
1710 | if (!EFI_ERROR (Status)) {\r | |
1711 | //\r | |
1712 | // read vendor/device IDs to check if flash device is supported\r | |
1713 | //\r | |
1714 | Status = mFvbModuleGlobal->SpiProtocol->Execute (\r | |
1715 | mFvbModuleGlobal->SpiProtocol,\r | |
1716 | SPI_OPCODE_JEDEC_ID_INDEX,\r | |
1717 | SPI_WREN_INDEX,\r | |
1718 | TRUE,\r | |
1719 | FALSE,\r | |
1720 | FALSE,\r | |
1721 | 0,\r | |
1722 | 3,\r | |
1723 | FlashID,\r | |
1724 | EnumSpiRegionAll\r | |
1725 | );\r | |
1726 | if (!EFI_ERROR (Status)) {\r | |
1727 | if (((FlashID[0] == mSpiInitTable[FlashIndex].VendorId) &&\r | |
1728 | (FlashID[2] == mSpiInitTable[FlashIndex].DeviceId1)) ||\r | |
1729 | ((FlashID[0] == SPI_AT26DF321_ID1) &&\r | |
1730 | (FlashID[0] == mSpiInitTable[FlashIndex].VendorId) &&\r | |
1731 | (FlashID[1] == mSpiInitTable[FlashIndex].DeviceId0))) {\r | |
1732 | //\r | |
1733 | // Supported SPI device found\r | |
1734 | //\r | |
1735 | DEBUG (\r | |
1736 | ((EFI_D_INFO),\r | |
1737 | "Supported SPI Flash device found, Vendor Id: 0x%02x, Device ID: 0x%02x%02x!\n",\r | |
1738 | FlashID[0],\r | |
1739 | FlashID[1],\r | |
1740 | FlashID[2])\r | |
1741 | );\r | |
1742 | \r | |
1743 | PublishFlashDeviceInfo (&mSpiInitTable[FlashIndex]);\r | |
1744 | break;\r | |
1745 | }\r | |
1746 | }\r | |
1747 | }\r | |
1748 | }\r | |
1749 | \r | |
1750 | if (FlashIndex >= EnumSpiFlashMax) {\r | |
1751 | Status = EFI_UNSUPPORTED;\r | |
1752 | DEBUG (\r | |
1753 | (DEBUG_ERROR,\r | |
1754 | "ERROR - Unknown SPI Flash Device, Vendor Id: 0x%02x, Device ID: 0x%02x%02x!\n",\r | |
1755 | FlashID[0],\r | |
1756 | FlashID[1],\r | |
1757 | FlashID[2])\r | |
1758 | );\r | |
1759 | ASSERT_EFI_ERROR (Status);\r | |
1760 | }\r | |
1761 | \r | |
1762 | //\r | |
1763 | // Unlock all regions by writing to status register\r | |
1764 | // This could be SPI device specific, need to follow the datasheet\r | |
1765 | // To write to Write Status Register the Spi PrefixOpcode needs to be:\r | |
1766 | // 0 for Atmel parts\r | |
1767 | // 0 for Intel parts\r | |
1768 | // 0 for Macronix parts\r | |
1769 | // 0 for Winbond parts\r | |
1770 | // 1 for SST parts\r | |
1771 | SpiStatus = 0;\r | |
1772 | if (FlashID[0] == SPI_SST25VF016B_ID1) {\r | |
1773 | PrefixOpcodeIndex = 1;\r | |
1774 | } else {\r | |
1775 | PrefixOpcodeIndex = 0;\r | |
1776 | }\r | |
1777 | Status = mFvbModuleGlobal->SpiProtocol->Execute (\r | |
1778 | mFvbModuleGlobal->SpiProtocol,\r | |
1779 | SPI_OPCODE_WRITE_S_INDEX, // OpcodeIndex\r | |
1780 | PrefixOpcodeIndex, // PrefixOpcodeIndex\r | |
1781 | TRUE, // DataCycle\r | |
1782 | TRUE, // Atomic\r | |
1783 | TRUE, // ShiftOut\r | |
1784 | 0, // Address\r | |
1785 | 1, // Data Number\r | |
1786 | &SpiStatus,\r | |
1787 | EnumSpiRegionAll // SPI_REGION_TYPE\r | |
1788 | );\r | |
1789 | \r | |
1790 | \r | |
1791 | } else {\r | |
1792 | mInSmmMode = 1;\r | |
1793 | \r | |
1794 | Status = mSmst->SmmLocateProtocol (&gEfiSmmSpiProtocolGuid, NULL, (VOID **) &mFvbModuleGlobal->SmmSpiProtocol);\r | |
1795 | if (EFI_ERROR(Status)) {\r | |
1796 | Registration = NULL;\r | |
1797 | Status = mSmst->SmmRegisterProtocolNotify (\r | |
1798 | &gEfiSmmSpiProtocolGuid,\r | |
1799 | SmmSpiNotificationFunction,\r | |
1800 | &Registration\r | |
1801 | );\r | |
1802 | } else {\r | |
1803 | Status = SmmSpiInit();\r | |
1804 | }\r | |
1805 | \r | |
1806 | }\r | |
1807 | \r | |
1808 | //\r | |
1809 | // Calculate the total size for all firmware volume block instances\r | |
1810 | //\r | |
1811 | BufferSize = 0;\r | |
1812 | FirmwareVolumeHobList = HobList;\r | |
1813 | FwVolHeader = NULL;\r | |
1814 | do {\r | |
1815 | Status = GetFvbHeader (&FirmwareVolumeHobList, &FwVolHeader, &BaseAddress, &WriteBack);\r | |
1816 | if (EFI_ERROR (Status)) {\r | |
1817 | break;\r | |
1818 | }\r | |
1819 | \r | |
1820 | if (FwVolHeader) {\r | |
1821 | BufferSize += (FwVolHeader->HeaderLength + sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER));\r | |
1822 | }\r | |
1823 | } while (TRUE);\r | |
1824 | \r | |
1825 | //\r | |
1826 | // Only need to allocate once. There is only one copy of physical memory for\r | |
1827 | // the private data of each FV instance. But in virtual mode or in physical\r | |
1828 | // mode, the address of the the physical memory may be different.\r | |
1829 | //\r | |
1830 | mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] = (EFI_FW_VOL_INSTANCE *) AllocateRuntimeZeroPool (BufferSize);\r | |
1831 | ASSERT(mFvbModuleGlobal->FvInstance[FVB_PHYSICAL]);\r | |
1832 | //\r | |
1833 | // Make a virtual copy of the FvInstance pointer.\r | |
1834 | //\r | |
1835 | FwhInstance = mFvbModuleGlobal->FvInstance[FVB_PHYSICAL];\r | |
1836 | mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] = FwhInstance;\r | |
1837 | \r | |
1838 | mFvbModuleGlobal->NumFv = 0;\r | |
1839 | FirmwareVolumeHobList = HobList;\r | |
1840 | TempFwVolHeader = NULL;\r | |
1841 | \r | |
1842 | MaxLbaSize = 0;\r | |
1843 | \r | |
1844 | //\r | |
1845 | // Fill in the private data of each firmware volume block instance\r | |
1846 | //\r | |
1847 | // Foreach Fv HOB in the FirmwareVolumeHobList, loop\r | |
1848 | //\r | |
1849 | do {\r | |
1850 | Status = GetFvbHeader (&FirmwareVolumeHobList, &TempFwVolHeader, &BaseAddress, &WriteBack);\r | |
1851 | if (EFI_ERROR (Status)) {\r | |
1852 | break;\r | |
1853 | }\r | |
1854 | FwVolHeader = TempFwVolHeader;\r | |
1855 | \r | |
1856 | if (!FwVolHeader) {\r | |
1857 | continue;\r | |
1858 | }\r | |
1859 | \r | |
1860 | \r | |
1861 | CopyMem ((UINTN *) &(FwhInstance->VolumeHeader), (UINTN *) FwVolHeader, FwVolHeader->HeaderLength);\r | |
1862 | FwVolHeader = &(FwhInstance->VolumeHeader);\r | |
1863 | \r | |
1864 | FwhInstance->FvBase[FVB_PHYSICAL] = (UINTN) BaseAddress;\r | |
1865 | FwhInstance->FvBase[FVB_VIRTUAL] = (UINTN) BaseAddress;\r | |
1866 | \r | |
1867 | //\r | |
1868 | // FwhInstance->FvWriteBase may not be the same as FwhInstance->FvBase\r | |
1869 | //\r | |
1870 | FwhInstance->FvWriteBase[FVB_PHYSICAL] = (UINTN) BaseAddress;\r | |
1871 | WriteEnabled = TRUE;\r | |
1872 | \r | |
1873 | //\r | |
1874 | // Every pointer should have a virtual copy.\r | |
1875 | //\r | |
1876 | FwhInstance->FvWriteBase[FVB_VIRTUAL] = FwhInstance->FvWriteBase[FVB_PHYSICAL];\r | |
1877 | \r | |
1878 | FwhInstance->WriteEnabled = WriteEnabled;\r | |
1879 | EfiInitializeLock (&(FwhInstance->FvbDevLock), TPL_HIGH_LEVEL);\r | |
1880 | \r | |
b303605e MK |
1881 | NumOfBlocks = 0;\r |
1882 | WriteLocked = FALSE;\r | |
1883 | \r | |
1884 | if (WriteEnabled) {\r | |
1885 | for (PtrBlockMapEntry = FwVolHeader->BlockMap; PtrBlockMapEntry->NumBlocks != 0; PtrBlockMapEntry++) {\r | |
1886 | //\r | |
1887 | // Get the maximum size of a block. The size will be used to allocate\r | |
1888 | // buffer for Scratch space, the intermediate buffer for FVB extension\r | |
1889 | // protocol\r | |
1890 | //\r | |
1891 | if (MaxLbaSize < PtrBlockMapEntry->Length) {\r | |
1892 | MaxLbaSize = PtrBlockMapEntry->Length;\r | |
1893 | }\r | |
1894 | \r | |
1895 | NumOfBlocks = NumOfBlocks + PtrBlockMapEntry->NumBlocks;\r | |
1896 | }\r | |
1897 | //\r | |
1898 | // Write back a healthy FV header\r | |
1899 | //\r | |
1900 | if (WriteBack && (!WriteLocked)) {\r | |
1901 | \r | |
1902 | Status = FlashFdErase (\r | |
1903 | (UINTN) FwhInstance->FvWriteBase[0],\r | |
1904 | (UINTN) BaseAddress,\r | |
1905 | FwVolHeader->BlockMap->Length\r | |
1906 | );\r | |
1907 | \r | |
1908 | HeaderLength = (UINTN) FwVolHeader->HeaderLength;\r | |
1909 | Status = FlashFdWrite (\r | |
1910 | (UINTN) FwhInstance->FvWriteBase[0],\r | |
1911 | (UINTN) BaseAddress,\r | |
1912 | &HeaderLength,\r | |
1913 | (UINT8 *) FwVolHeader,\r | |
1914 | FwVolHeader->BlockMap->Length\r | |
1915 | );\r | |
1916 | \r | |
1917 | }\r | |
1918 | }\r | |
1919 | //\r | |
1920 | // The total number of blocks in the FV.\r | |
1921 | //\r | |
1922 | FwhInstance->NumOfBlocks = NumOfBlocks;\r | |
1923 | \r | |
1924 | //\r | |
1925 | // If the FV is write locked, set the appropriate attributes\r | |
1926 | //\r | |
1927 | if (WriteLocked) {\r | |
1928 | //\r | |
1929 | // write disabled\r | |
1930 | //\r | |
1931 | FwhInstance->VolumeHeader.Attributes &= ~EFI_FVB2_WRITE_STATUS;\r | |
1932 | //\r | |
1933 | // lock enabled\r | |
1934 | //\r | |
1935 | FwhInstance->VolumeHeader.Attributes |= EFI_FVB2_LOCK_STATUS;\r | |
1936 | }\r | |
1937 | \r | |
1938 | //\r | |
1939 | // Allocate and initialize FVB Device in a runtime data buffer\r | |
1940 | //\r | |
1941 | FvbDevice = AllocateRuntimeCopyPool (sizeof (EFI_FW_VOL_BLOCK_DEVICE), &mFvbDeviceTemplate);\r | |
1942 | ASSERT (FvbDevice);\r | |
1943 | \r | |
1944 | FvbDevice->Instance = mFvbModuleGlobal->NumFv;\r | |
1945 | mFvbModuleGlobal->NumFv++;\r | |
1946 | \r | |
1947 | //\r | |
1948 | // FV does not contains extension header, then produce MEMMAP_DEVICE_PATH\r | |
1949 | //\r | |
1950 | if (FwVolHeader->ExtHeaderOffset == 0) {\r | |
1951 | FvbDevice->FvDevicePath.MemMapDevPath.StartingAddress = BaseAddress;\r | |
1952 | FvbDevice->FvDevicePath.MemMapDevPath.EndingAddress = BaseAddress + (FwVolHeader->FvLength - 1);\r | |
1953 | FwbDevicePath = (EFI_DEVICE_PATH_PROTOCOL *)&FvbDevice->FvDevicePath;\r | |
1954 | } else {\r | |
1955 | CopyGuid (\r | |
1956 | &FvbDevice->UefiFvDevicePath.FvDevPath.FvName,\r | |
1957 | (EFI_GUID *)(UINTN)(BaseAddress + FwVolHeader->ExtHeaderOffset)\r | |
1958 | );\r | |
1959 | FwbDevicePath = (EFI_DEVICE_PATH_PROTOCOL *)&FvbDevice->UefiFvDevicePath;\r | |
1960 | }\r | |
1961 | \r | |
1962 | if (!InSmm) {\r | |
1963 | //\r | |
1964 | // Find a handle with a matching device path that has supports FW Block protocol\r | |
1965 | //\r | |
1966 | TempFwbDevicePath = FwbDevicePath;\r | |
1967 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolumeBlockProtocolGuid, &TempFwbDevicePath, &FwbHandle);\r | |
1968 | if (EFI_ERROR (Status)) {\r | |
1969 | //\r | |
1970 | // LocateDevicePath fails so install a new interface and device path\r | |
1971 | //\r | |
1972 | FwbHandle = NULL;\r | |
1973 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1974 | &FwbHandle,\r | |
1975 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
1976 | &FvbDevice->FwVolBlockInstance,\r | |
1977 | &gEfiDevicePathProtocolGuid,\r | |
1978 | FwbDevicePath,\r | |
1979 | NULL\r | |
1980 | );\r | |
1981 | ASSERT_EFI_ERROR (Status);\r | |
1982 | } else if (EfiIsDevicePathEnd (TempFwbDevicePath)) {\r | |
1983 | //\r | |
1984 | // Device already exists, so reinstall the FVB protocol\r | |
1985 | //\r | |
1986 | Status = gBS->HandleProtocol (\r | |
1987 | FwbHandle,\r | |
1988 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
1989 | (VOID **) &OldFwbInterface\r | |
1990 | );\r | |
1991 | ASSERT_EFI_ERROR (Status);\r | |
1992 | \r | |
1993 | Status = gBS->ReinstallProtocolInterface (\r | |
1994 | FwbHandle,\r | |
1995 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
1996 | OldFwbInterface,\r | |
1997 | &FvbDevice->FwVolBlockInstance\r | |
1998 | );\r | |
1999 | ASSERT_EFI_ERROR (Status);\r | |
2000 | \r | |
2001 | } else {\r | |
2002 | //\r | |
2003 | // There was a FVB protocol on an End Device Path node\r | |
2004 | //\r | |
2005 | ASSERT (FALSE);\r | |
2006 | }\r | |
2007 | } else {\r | |
2008 | FwbHandle = NULL;\r | |
2009 | Status = mSmst->SmmInstallProtocolInterface (\r | |
2010 | &FwbHandle,\r | |
2011 | &gEfiSmmFirmwareVolumeBlockProtocolGuid,\r | |
2012 | EFI_NATIVE_INTERFACE,\r | |
2013 | &FvbDevice->FwVolBlockInstance\r | |
2014 | );\r | |
2015 | ASSERT_EFI_ERROR (Status);\r | |
2016 | }\r | |
2017 | \r | |
2018 | FwhInstance = (EFI_FW_VOL_INSTANCE *)\r | |
2019 | (\r | |
2020 | (UINTN) ((UINT8 *) FwhInstance) + FwVolHeader->HeaderLength +\r | |
2021 | (sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))\r | |
2022 | );\r | |
2023 | } while (TRUE);\r | |
2024 | \r | |
2025 | //\r | |
2026 | // Allocate for scratch space, an intermediate buffer for FVB extention\r | |
2027 | //\r | |
2028 | \r | |
2029 | mFvbModuleGlobal->FvbScratchSpace[FVB_PHYSICAL] = AllocateRuntimeZeroPool (MaxLbaSize);\r | |
2030 | \r | |
2031 | ASSERT (mFvbModuleGlobal->FvbScratchSpace[FVB_PHYSICAL]);\r | |
2032 | \r | |
2033 | mFvbModuleGlobal->FvbScratchSpace[FVB_VIRTUAL] = mFvbModuleGlobal->FvbScratchSpace[FVB_PHYSICAL];\r | |
2034 | \r | |
2035 | if (!InSmm) {\r | |
2036 | Status = gBS->CreateEventEx (\r | |
2037 | EVT_NOTIFY_SIGNAL,\r | |
2038 | TPL_NOTIFY,\r | |
2039 | FvbVirtualddressChangeEvent,\r | |
2040 | NULL,\r | |
2041 | &gEfiEventVirtualAddressChangeGuid,\r | |
2042 | &Event\r | |
2043 | );\r | |
2044 | ASSERT_EFI_ERROR (Status);\r | |
2045 | } else {\r | |
2046 | //\r | |
2047 | // Inform other platform drivers that SPI device discovered and\r | |
2048 | // SPI interface ready for use.\r | |
2049 | //\r | |
2050 | Handle = NULL;\r | |
2051 | Status = gBS->InstallProtocolInterface (\r | |
2052 | &Handle,\r | |
2053 | &gEfiSmmSpiReadyProtocolGuid,\r | |
2054 | EFI_NATIVE_INTERFACE,\r | |
2055 | NULL\r | |
2056 | );\r | |
2057 | }\r | |
2058 | return EFI_SUCCESS;\r | |
2059 | }\r |