bc11b829 |
1 | /*++\r |
2 | \r |
3 | Copyright (c) 2006 - 2007, Intel Corporation\r |
4 | All rights reserved. This program and the accompanying materials\r |
5 | are licensed and made available under the terms and conditions of the BSD License\r |
6 | which accompanies this distribution. The full text of the license may be found at\r |
7 | http://opensource.org/licenses/bsd-license.php\r |
8 | \r |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
11 | \r |
12 | Module Name:\r |
13 | \r |
14 | BBSsupport.c\r |
15 | \r |
16 | Abstract:\r |
17 | \r |
18 | This function deal with the legacy boot option, it create, delete\r |
19 | and manage the legacy boot option, all legacy boot option is getting from\r |
20 | the legacy BBS table.\r |
21 | \r |
22 | --*/\r |
23 | \r |
bc11b829 |
24 | #include "BBSsupport.h"\r |
25 | \r |
26 | EFI_DEVICE_PATH_PROTOCOL EndDevicePath[] = {\r |
27 | END_DEVICE_PATH_TYPE,\r |
28 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r |
29 | END_DEVICE_PATH_LENGTH,\r |
30 | 0\r |
31 | };\r |
32 | \r |
33 | VOID\r |
34 | AsciiToUnicodeSize (\r |
35 | IN UINT8 *a,\r |
36 | IN UINTN Size,\r |
37 | OUT UINT16 *u\r |
38 | )\r |
39 | /*++\r |
40 | \r |
41 | Routine Description:\r |
42 | \r |
43 | Translate the first n characters of an Ascii string to\r |
44 | Unicode characters. The count n is indicated by parameter\r |
45 | Size. If Size is greater than the length of string, then\r |
46 | the entire string is translated.\r |
47 | \r |
48 | Arguments:\r |
49 | \r |
50 | a - Pointer to input Ascii string.\r |
51 | Size - The number of characters to translate.\r |
52 | u - Pointer to output Unicode string buffer.\r |
53 | \r |
54 | Returns:\r |
55 | \r |
56 | None\r |
57 | \r |
58 | --*/\r |
59 | {\r |
60 | UINTN i;\r |
61 | \r |
62 | i = 0;\r |
63 | while (a[i] != 0) {\r |
64 | u[i] = (CHAR16) a[i];\r |
65 | if (i == Size) {\r |
66 | break;\r |
67 | }\r |
68 | \r |
69 | i++;\r |
70 | }\r |
71 | u[i] = 0;\r |
72 | }\r |
73 | \r |
74 | VOID\r |
75 | BdsBuildLegacyDevNameString (\r |
76 | IN BBS_TABLE *CurBBSEntry,\r |
77 | IN UINTN Index,\r |
78 | IN UINTN BufSize,\r |
79 | OUT CHAR16 *BootString\r |
80 | )\r |
81 | {\r |
82 | CHAR16 *Fmt;\r |
83 | CHAR16 *Type;\r |
84 | UINT8 *StringDesc;\r |
85 | CHAR16 temp[80];\r |
86 | \r |
87 | switch (Index) {\r |
88 | //\r |
89 | // Primary Master\r |
90 | //\r |
91 | case 1:\r |
92 | Fmt = L"Primary Master %s";\r |
93 | break;\r |
94 | \r |
95 | //\r |
96 | // Primary Slave\r |
97 | //\r |
98 | case 2:\r |
99 | Fmt = L"Primary Slave %s";\r |
100 | break;\r |
101 | \r |
102 | //\r |
103 | // Secondary Master\r |
104 | //\r |
105 | case 3:\r |
106 | Fmt = L"Secondary Master %s";\r |
107 | break;\r |
108 | \r |
109 | //\r |
110 | // Secondary Slave\r |
111 | //\r |
112 | case 4:\r |
113 | Fmt = L"Secondary Slave %s";\r |
114 | break;\r |
115 | \r |
116 | default:\r |
117 | Fmt = L"%s";\r |
118 | break;\r |
119 | }\r |
120 | \r |
121 | switch (CurBBSEntry->DeviceType) {\r |
122 | case BBS_FLOPPY:\r |
123 | Type = L"Floppy";\r |
124 | break;\r |
125 | \r |
126 | case BBS_HARDDISK:\r |
127 | Type = L"Harddisk";\r |
128 | break;\r |
129 | \r |
130 | case BBS_CDROM:\r |
131 | Type = L"CDROM";\r |
132 | break;\r |
133 | \r |
134 | case BBS_PCMCIA:\r |
135 | Type = L"PCMCIAe";\r |
136 | break;\r |
137 | \r |
138 | case BBS_USB:\r |
139 | Type = L"USB";\r |
140 | break;\r |
141 | \r |
142 | case BBS_EMBED_NETWORK:\r |
143 | Type = L"Network";\r |
144 | break;\r |
145 | \r |
146 | case BBS_BEV_DEVICE:\r |
147 | Type = L"BEVe";\r |
148 | break;\r |
149 | \r |
150 | case BBS_UNKNOWN:\r |
151 | default:\r |
152 | Type = L"Unknown";\r |
153 | break;\r |
154 | }\r |
155 | //\r |
156 | // If current BBS entry has its description then use it.\r |
157 | //\r |
158 | StringDesc = (UINT8 *) (UINTN) ((CurBBSEntry->DescStringSegment << 4) + CurBBSEntry->DescStringOffset);\r |
159 | if (NULL != StringDesc) {\r |
160 | //\r |
161 | // Only get fisrt 32 characters, this is suggested by BBS spec\r |
162 | //\r |
163 | AsciiToUnicodeSize (StringDesc, 32, temp);\r |
164 | Fmt = L"%s";\r |
165 | Type = temp;\r |
166 | }\r |
167 | \r |
168 | UnicodeSPrint (BootString, BufSize, Fmt, Type);\r |
169 | }\r |
170 | \r |
171 | EFI_STATUS\r |
172 | BdsCreateLegacyBootOption (\r |
173 | IN BBS_TABLE *CurrentBbsEntry,\r |
174 | IN EFI_DEVICE_PATH_PROTOCOL *CurrentBbsDevPath,\r |
175 | IN UINTN Index,\r |
176 | IN OUT UINT16 **BootOrderList,\r |
177 | IN OUT UINTN *BootOrderListSize\r |
178 | )\r |
179 | /*++\r |
180 | \r |
181 | Routine Description:\r |
182 | \r |
183 | Create a legacy boot option for the specified entry of\r |
184 | BBS table, save it as variable, and append it to the boot\r |
185 | order list.\r |
186 | \r |
187 | Arguments:\r |
188 | \r |
189 | CurrentBbsEntry - Pointer to current BBS table.\r |
190 | CurrentBbsDevPath - Pointer to the Device Path Protocol instance of BBS\r |
191 | Index - Index of the specified entry in BBS table.\r |
192 | BootOrderList - On input, the original boot order list.\r |
193 | On output, the new boot order list attached with the\r |
194 | created node.\r |
195 | BootOrderListSize - On input, the original size of boot order list.\r |
196 | - On output, the size of new boot order list.\r |
197 | \r |
198 | Returns:\r |
199 | \r |
200 | EFI_SUCCESS - Boot Option successfully created.\r |
201 | EFI_OUT_OF_RESOURCES - Fail to allocate necessary memory.\r |
202 | Other - Error occurs while setting variable.\r |
203 | \r |
204 | --*/\r |
205 | {\r |
206 | EFI_STATUS Status;\r |
207 | UINT16 CurrentBootOptionNo;\r |
208 | UINT16 BootString[10];\r |
209 | UINT16 BootDesc[100];\r |
210 | UINT16 *NewBootOrderList;\r |
211 | UINTN BufferSize;\r |
212 | VOID *Buffer;\r |
213 | UINT8 *Ptr;\r |
214 | UINT16 CurrentBbsDevPathSize;\r |
215 | UINTN BootOrderIndex;\r |
216 | UINTN BootOrderLastIndex;\r |
217 | UINTN ArrayIndex;\r |
218 | BOOLEAN IndexNotFound;\r |
219 | \r |
220 | if (NULL == (*BootOrderList)) {\r |
221 | CurrentBootOptionNo = 0;\r |
222 | } else {\r |
223 | for (ArrayIndex = 0; ArrayIndex < (UINTN) (*BootOrderListSize / sizeof (UINT16)); ArrayIndex++) {\r |
224 | IndexNotFound = TRUE;\r |
225 | for (BootOrderIndex = 0; BootOrderIndex < (UINTN) (*BootOrderListSize / sizeof (UINT16)); BootOrderIndex++) {\r |
226 | if ((*BootOrderList)[BootOrderIndex] == ArrayIndex) {\r |
227 | IndexNotFound = FALSE;\r |
228 | break;\r |
229 | }\r |
230 | }\r |
231 | \r |
232 | if (!IndexNotFound) {\r |
233 | continue;\r |
234 | } else {\r |
235 | break;\r |
236 | }\r |
237 | }\r |
238 | \r |
239 | CurrentBootOptionNo = (UINT16) ArrayIndex;\r |
240 | }\r |
241 | \r |
242 | UnicodeSPrint (\r |
243 | BootString,\r |
244 | sizeof (BootString),\r |
245 | L"Boot%04x",\r |
246 | CurrentBootOptionNo\r |
247 | );\r |
248 | \r |
249 | BdsBuildLegacyDevNameString (CurrentBbsEntry, Index, sizeof (BootDesc), BootDesc);\r |
250 | \r |
251 | CurrentBbsDevPathSize = (UINT16) (GetDevicePathSize (CurrentBbsDevPath));\r |
252 | \r |
253 | BufferSize = sizeof (UINT32) +\r |
254 | sizeof (UINT16) +\r |
255 | StrSize (BootDesc) +\r |
256 | CurrentBbsDevPathSize +\r |
257 | sizeof (BBS_TABLE) +\r |
258 | sizeof (UINT16);\r |
259 | \r |
260 | Buffer = AllocateZeroPool (BufferSize);\r |
261 | if (Buffer == NULL) {\r |
262 | return EFI_OUT_OF_RESOURCES;\r |
263 | }\r |
264 | \r |
265 | Ptr = (UINT8 *) Buffer;\r |
266 | \r |
267 | *((UINT32 *) Ptr) = LOAD_OPTION_ACTIVE;\r |
268 | Ptr += sizeof (UINT32);\r |
269 | \r |
270 | *((UINT16 *) Ptr) = CurrentBbsDevPathSize;\r |
271 | Ptr += sizeof (UINT16);\r |
272 | \r |
273 | CopyMem (\r |
274 | Ptr,\r |
275 | BootDesc,\r |
276 | StrSize (BootDesc)\r |
277 | );\r |
278 | Ptr += StrSize (BootDesc);\r |
279 | \r |
280 | CopyMem (\r |
281 | Ptr,\r |
282 | CurrentBbsDevPath,\r |
283 | CurrentBbsDevPathSize\r |
284 | );\r |
285 | Ptr += CurrentBbsDevPathSize;\r |
286 | \r |
287 | CopyMem (\r |
288 | Ptr,\r |
289 | CurrentBbsEntry,\r |
290 | sizeof (BBS_TABLE)\r |
291 | );\r |
292 | \r |
293 | Ptr += sizeof (BBS_TABLE);\r |
294 | *((UINT16 *) Ptr) = (UINT16) Index;\r |
295 | \r |
296 | Status = gRT->SetVariable (\r |
297 | BootString,\r |
298 | &gEfiGlobalVariableGuid,\r |
299 | VAR_FLAG,\r |
300 | BufferSize,\r |
301 | Buffer\r |
302 | );\r |
303 | \r |
304 | SafeFreePool (Buffer);\r |
305 | Buffer = NULL;\r |
306 | \r |
307 | NewBootOrderList = AllocateZeroPool (*BootOrderListSize + sizeof (UINT16));\r |
308 | if (NULL == NewBootOrderList) {\r |
309 | return EFI_OUT_OF_RESOURCES;\r |
310 | }\r |
311 | \r |
312 | if (NULL != *BootOrderList) {\r |
313 | CopyMem (NewBootOrderList, *BootOrderList, *BootOrderListSize);\r |
314 | }\r |
315 | \r |
316 | SafeFreePool (*BootOrderList);\r |
317 | \r |
318 | BootOrderLastIndex = (UINTN) (*BootOrderListSize / sizeof (UINT16));\r |
319 | NewBootOrderList[BootOrderLastIndex] = CurrentBootOptionNo;\r |
320 | *BootOrderListSize += sizeof (UINT16);\r |
321 | *BootOrderList = NewBootOrderList;\r |
322 | \r |
323 | return Status;\r |
324 | }\r |
325 | \r |
326 | BOOLEAN\r |
327 | BdsIsLegacyBootOption (\r |
328 | IN UINT8 *BootOptionVar,\r |
329 | OUT BBS_TABLE **BbsEntry,\r |
330 | OUT UINT16 *BbsIndex\r |
331 | )\r |
332 | {\r |
333 | UINT8 *Ptr;\r |
334 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r |
335 | BOOLEAN Ret;\r |
336 | UINT16 DevPathLen;\r |
337 | \r |
338 | Ptr = BootOptionVar;\r |
339 | Ptr += sizeof (UINT32);\r |
340 | DevPathLen = *(UINT16 *) Ptr;\r |
341 | Ptr += sizeof (UINT16);\r |
342 | Ptr += StrSize ((UINT16 *) Ptr);\r |
343 | DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;\r |
344 | if ((BBS_DEVICE_PATH == DevicePath->Type) && (BBS_BBS_DP == DevicePath->SubType)) {\r |
345 | Ptr += DevPathLen;\r |
346 | *BbsEntry = (BBS_TABLE *) Ptr;\r |
347 | Ptr += sizeof (BBS_TABLE);\r |
348 | *BbsIndex = *(UINT16 *) Ptr;\r |
349 | Ret = TRUE;\r |
350 | } else {\r |
351 | *BbsEntry = NULL;\r |
352 | Ret = FALSE;\r |
353 | }\r |
354 | \r |
355 | return Ret;\r |
356 | }\r |
357 | \r |
358 | EFI_STATUS\r |
359 | BdsDeleteBootOption (\r |
360 | IN UINTN OptionNumber,\r |
361 | IN OUT UINT16 *BootOrder,\r |
362 | IN OUT UINTN *BootOrderSize\r |
363 | )\r |
364 | {\r |
365 | UINT16 BootOption[100];\r |
366 | UINTN Index;\r |
367 | EFI_STATUS Status;\r |
368 | UINTN Index2Del;\r |
369 | \r |
370 | Status = EFI_SUCCESS;\r |
371 | Index2Del = 0;\r |
372 | \r |
373 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", OptionNumber);\r |
374 | Status = EfiLibDeleteVariable (BootOption, &gEfiGlobalVariableGuid);\r |
375 | //\r |
376 | // adjust boot order array\r |
377 | //\r |
378 | for (Index = 0; Index < *BootOrderSize / sizeof (UINT16); Index++) {\r |
379 | if (BootOrder[Index] == OptionNumber) {\r |
380 | Index2Del = Index;\r |
381 | break;\r |
382 | }\r |
383 | }\r |
384 | \r |
385 | if (Index != *BootOrderSize / sizeof (UINT16)) {\r |
386 | for (Index = 0; Index < *BootOrderSize / sizeof (UINT16) - 1; Index++) {\r |
387 | if (Index >= Index2Del) {\r |
388 | BootOrder[Index] = BootOrder[Index + 1];\r |
389 | }\r |
390 | }\r |
391 | \r |
392 | *BootOrderSize -= sizeof (UINT16);\r |
393 | }\r |
394 | \r |
395 | return Status;\r |
396 | \r |
397 | }\r |
398 | \r |
399 | EFI_STATUS\r |
400 | BdsDeleteAllInvalidLegacyBootOptions (\r |
401 | VOID\r |
402 | )\r |
403 | /*++\r |
404 | \r |
405 | Routine Description:\r |
406 | \r |
407 | Delete all the invalid legacy boot options.\r |
408 | \r |
409 | Arguments:\r |
410 | \r |
411 | None.\r |
412 | \r |
413 | Returns:\r |
414 | \r |
415 | EFI_SUCCESS - All invalide legacy boot options are deleted.\r |
416 | EFI_OUT_OF_RESOURCES - Fail to allocate necessary memory.\r |
417 | EFI_NOT_FOUND - Fail to retrive variable of boot order.\r |
418 | Other - Error occurs while setting variable or locating\r |
419 | protocol.\r |
420 | \r |
421 | --*/\r |
422 | {\r |
423 | UINT16 *BootOrder;\r |
424 | UINT8 *BootOptionVar;\r |
425 | UINTN BootOrderSize;\r |
426 | UINTN BootOptionSize;\r |
427 | EFI_STATUS Status;\r |
428 | UINT16 HddCount;\r |
429 | UINT16 BbsCount;\r |
430 | HDD_INFO *LocalHddInfo;\r |
431 | BBS_TABLE *LocalBbsTable;\r |
432 | BBS_TABLE *BbsEntry;\r |
433 | UINT16 BbsIndex;\r |
434 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r |
435 | UINTN Index;\r |
436 | UINT16 BootOption[10];\r |
437 | UINT16 BootDesc[100];\r |
438 | BOOLEAN DescStringMatch;\r |
439 | \r |
440 | Status = EFI_SUCCESS;\r |
441 | BootOrder = NULL;\r |
442 | BootOrderSize = 0;\r |
443 | HddCount = 0;\r |
444 | BbsCount = 0;\r |
445 | LocalHddInfo = NULL;\r |
446 | LocalBbsTable = NULL;\r |
447 | BbsEntry = NULL;\r |
448 | \r |
449 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);\r |
450 | if (EFI_ERROR (Status)) {\r |
451 | return Status;\r |
452 | }\r |
453 | \r |
454 | LegacyBios->GetBbsInfo (\r |
455 | LegacyBios,\r |
456 | &HddCount,\r |
457 | &LocalHddInfo,\r |
458 | &BbsCount,\r |
459 | &LocalBbsTable\r |
460 | );\r |
461 | \r |
462 | BootOrder = BdsLibGetVariableAndSize (\r |
463 | L"BootOrder",\r |
464 | &gEfiGlobalVariableGuid,\r |
465 | &BootOrderSize\r |
466 | );\r |
467 | if (NULL == BootOrder) {\r |
468 | return EFI_NOT_FOUND;\r |
469 | }\r |
470 | \r |
471 | Index = 0;\r |
472 | while (Index < BootOrderSize / sizeof (UINT16)) {\r |
473 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r |
474 | BootOptionVar = BdsLibGetVariableAndSize (\r |
475 | BootOption,\r |
476 | &gEfiGlobalVariableGuid,\r |
477 | &BootOptionSize\r |
478 | );\r |
479 | if (NULL == BootOptionVar) {\r |
480 | SafeFreePool (BootOrder);\r |
481 | return EFI_OUT_OF_RESOURCES;\r |
482 | }\r |
483 | \r |
484 | if (!BdsIsLegacyBootOption (BootOptionVar, &BbsEntry, &BbsIndex)) {\r |
485 | SafeFreePool (BootOptionVar);\r |
486 | Index++;\r |
487 | continue;\r |
488 | }\r |
489 | \r |
490 | //\r |
491 | // Check if BBS Description String is changed\r |
492 | //\r |
493 | DescStringMatch = FALSE;\r |
494 | \r |
495 | BdsBuildLegacyDevNameString (\r |
496 | &LocalBbsTable[BbsIndex],\r |
497 | BbsIndex,\r |
498 | sizeof(BootDesc),\r |
499 | BootDesc\r |
500 | );\r |
501 | \r |
502 | if (StrCmp (BootDesc, (UINT16*)(BootOptionVar + sizeof (UINT32) + sizeof (UINT16))) == 0) {\r |
503 | DescStringMatch = TRUE;\r |
504 | }\r |
505 | \r |
506 | if (!((LocalBbsTable[BbsIndex].BootPriority == BBS_IGNORE_ENTRY) ||\r |
507 | (LocalBbsTable[BbsIndex].BootPriority == BBS_DO_NOT_BOOT_FROM) ||\r |
508 | (LocalBbsTable[BbsIndex].BootPriority == BBS_LOWEST_PRIORITY)) &&\r |
509 | (LocalBbsTable[BbsIndex].DeviceType == BbsEntry->DeviceType) &&\r |
510 | DescStringMatch) {\r |
511 | Index++;\r |
512 | continue;\r |
513 | }\r |
514 | \r |
515 | SafeFreePool (BootOptionVar);\r |
516 | //\r |
517 | // should delete\r |
518 | //\r |
519 | BdsDeleteBootOption (\r |
520 | BootOrder[Index],\r |
521 | BootOrder,\r |
522 | &BootOrderSize\r |
523 | );\r |
524 | }\r |
525 | \r |
526 | if (BootOrderSize) {\r |
527 | Status = gRT->SetVariable (\r |
528 | L"BootOrder",\r |
529 | &gEfiGlobalVariableGuid,\r |
530 | VAR_FLAG,\r |
531 | BootOrderSize,\r |
532 | BootOrder\r |
533 | );\r |
534 | } else {\r |
535 | EfiLibDeleteVariable (L"BootOrder", &gEfiGlobalVariableGuid);\r |
536 | }\r |
537 | \r |
538 | SafeFreePool (BootOrder);\r |
539 | \r |
540 | return Status;\r |
541 | }\r |
542 | \r |
543 | BOOLEAN\r |
544 | BdsFindLegacyBootOptionByDevType (\r |
545 | IN UINT16 *BootOrder,\r |
546 | IN UINTN BootOptionNum,\r |
547 | IN UINT16 DevType,\r |
548 | OUT UINT32 *Attribute,\r |
549 | OUT UINT16 *BbsIndex,\r |
550 | OUT UINTN *OptionNumber\r |
551 | )\r |
552 | {\r |
553 | UINTN Index;\r |
554 | UINTN BootOrderIndex;\r |
555 | UINT16 BootOption[100];\r |
556 | UINTN BootOptionSize;\r |
557 | UINT8 *BootOptionVar;\r |
558 | BBS_TABLE *BbsEntry;\r |
559 | BOOLEAN Found;\r |
560 | \r |
561 | BbsEntry = NULL;\r |
562 | Found = FALSE;\r |
563 | \r |
564 | if (NULL == BootOrder) {\r |
565 | return Found;\r |
566 | }\r |
567 | \r |
568 | for (BootOrderIndex = 0; BootOrderIndex < BootOptionNum; BootOrderIndex++) {\r |
569 | Index = (UINTN) BootOrder[BootOrderIndex];\r |
570 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", Index);\r |
571 | BootOptionVar = BdsLibGetVariableAndSize (\r |
572 | BootOption,\r |
573 | &gEfiGlobalVariableGuid,\r |
574 | &BootOptionSize\r |
575 | );\r |
576 | if (NULL == BootOptionVar) {\r |
577 | continue;\r |
578 | }\r |
579 | \r |
580 | if (!BdsIsLegacyBootOption (BootOptionVar, &BbsEntry, BbsIndex)) {\r |
581 | SafeFreePool (BootOptionVar);\r |
582 | continue;\r |
583 | }\r |
584 | \r |
585 | if (BbsEntry->DeviceType != DevType) {\r |
586 | SafeFreePool (BootOptionVar);\r |
587 | continue;\r |
588 | }\r |
589 | \r |
590 | *Attribute = *(UINT32 *) BootOptionVar;\r |
591 | *OptionNumber = Index;\r |
592 | Found = TRUE;\r |
593 | SafeFreePool (BootOptionVar);\r |
594 | break;\r |
595 | }\r |
596 | \r |
597 | return Found;\r |
598 | }\r |
599 | \r |
600 | EFI_STATUS\r |
601 | BdsCreateOneLegacyBootOption (\r |
602 | IN BBS_TABLE *BbsItem,\r |
603 | IN UINTN Index,\r |
604 | IN OUT UINT16 **BootOrderList,\r |
605 | IN OUT UINTN *BootOrderListSize\r |
606 | )\r |
607 | {\r |
608 | BBS_BBS_DEVICE_PATH BbsDevPathNode;\r |
609 | EFI_STATUS Status;\r |
610 | EFI_DEVICE_PATH_PROTOCOL *DevPath;\r |
611 | \r |
612 | DevPath = NULL;\r |
613 | \r |
614 | BbsDevPathNode.Header.Type = BBS_DEVICE_PATH;\r |
615 | BbsDevPathNode.Header.SubType = BBS_BBS_DP;\r |
616 | SetDevicePathNodeLength (&BbsDevPathNode.Header, sizeof (BBS_BBS_DEVICE_PATH));\r |
617 | BbsDevPathNode.DeviceType = BbsItem->DeviceType;\r |
618 | CopyMem (&BbsDevPathNode.StatusFlag, &BbsItem->StatusFlags, sizeof (UINT16));\r |
619 | \r |
620 | DevPath = AppendDevicePathNode (\r |
621 | EndDevicePath,\r |
622 | (EFI_DEVICE_PATH_PROTOCOL *) &BbsDevPathNode\r |
623 | );\r |
624 | if (NULL == DevPath) {\r |
625 | return EFI_OUT_OF_RESOURCES;\r |
626 | }\r |
627 | \r |
628 | Status = BdsCreateLegacyBootOption (\r |
629 | BbsItem,\r |
630 | DevPath,\r |
631 | Index,\r |
632 | BootOrderList,\r |
633 | BootOrderListSize\r |
634 | );\r |
635 | BbsItem->BootPriority = 0x00;\r |
636 | \r |
637 | FreePool (DevPath);\r |
638 | \r |
639 | return Status;\r |
640 | }\r |
641 | \r |
642 | EFI_STATUS\r |
643 | BdsAddNonExistingLegacyBootOptions (\r |
644 | VOID\r |
645 | )\r |
646 | /*++\r |
647 | \r |
648 | Routine Description:\r |
649 | \r |
650 | Add the legacy boot options from BBS table if they do not exist.\r |
651 | \r |
652 | Arguments:\r |
653 | \r |
654 | None.\r |
655 | \r |
656 | Returns:\r |
657 | \r |
658 | EFI_SUCCESS - The boot options are added successfully or they are already in boot options.\r |
659 | others - An error occurred when creating legacy boot options.\r |
660 | \r |
661 | --*/\r |
662 | {\r |
663 | UINT16 *BootOrder;\r |
664 | UINTN BootOrderSize;\r |
665 | EFI_STATUS Status;\r |
666 | UINT16 HddCount;\r |
667 | UINT16 BbsCount;\r |
668 | HDD_INFO *LocalHddInfo;\r |
669 | BBS_TABLE *LocalBbsTable;\r |
670 | UINT16 BbsIndex;\r |
671 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r |
672 | UINTN Index;\r |
673 | UINT32 Attribute;\r |
674 | UINTN OptionNumber;\r |
675 | BOOLEAN Ret;\r |
676 | \r |
677 | BootOrder = NULL;\r |
678 | HddCount = 0;\r |
679 | BbsCount = 0;\r |
680 | LocalHddInfo = NULL;\r |
681 | LocalBbsTable = NULL;\r |
682 | \r |
683 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);\r |
684 | if (EFI_ERROR (Status)) {\r |
685 | return Status;\r |
686 | }\r |
687 | \r |
688 | LegacyBios->GetBbsInfo (\r |
689 | LegacyBios,\r |
690 | &HddCount,\r |
691 | &LocalHddInfo,\r |
692 | &BbsCount,\r |
693 | &LocalBbsTable\r |
694 | );\r |
695 | \r |
696 | BootOrder = BdsLibGetVariableAndSize (\r |
697 | L"BootOrder",\r |
698 | &gEfiGlobalVariableGuid,\r |
699 | &BootOrderSize\r |
700 | );\r |
701 | if (NULL == BootOrder) {\r |
702 | BootOrderSize = 0;\r |
703 | }\r |
704 | \r |
705 | for (Index = 0; Index < BbsCount; Index++) {\r |
706 | if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||\r |
707 | (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM)\r |
708 | ) {\r |
709 | continue;\r |
710 | }\r |
711 | \r |
712 | Ret = BdsFindLegacyBootOptionByDevType (\r |
713 | BootOrder,\r |
714 | BootOrderSize / sizeof (UINT16),\r |
715 | LocalBbsTable[Index].DeviceType,\r |
716 | &Attribute,\r |
717 | &BbsIndex,\r |
718 | &OptionNumber\r |
719 | );\r |
720 | if (Ret && (Attribute & LOAD_OPTION_ACTIVE) != 0) {\r |
721 | continue;\r |
722 | }\r |
723 | \r |
724 | if (Ret) {\r |
725 | if (Index != BbsIndex) {\r |
726 | BdsDeleteBootOption (\r |
727 | OptionNumber,\r |
728 | BootOrder,\r |
729 | &BootOrderSize\r |
730 | );\r |
731 | } else {\r |
732 | continue;\r |
733 | }\r |
734 | }\r |
735 | //\r |
736 | // Not found such type of legacy device in boot options or we found but it's disabled\r |
737 | // so we have to create one and put it to the tail of boot order list\r |
738 | //\r |
739 | Status = BdsCreateOneLegacyBootOption (\r |
740 | &LocalBbsTable[Index],\r |
741 | Index,\r |
742 | &BootOrder,\r |
743 | &BootOrderSize\r |
744 | );\r |
745 | if (EFI_ERROR (Status)) {\r |
746 | break;\r |
747 | }\r |
748 | }\r |
749 | \r |
750 | if (BootOrderSize > 0) {\r |
751 | Status = gRT->SetVariable (\r |
752 | L"BootOrder",\r |
753 | &gEfiGlobalVariableGuid,\r |
754 | VAR_FLAG,\r |
755 | BootOrderSize,\r |
756 | BootOrder\r |
757 | );\r |
758 | } else {\r |
759 | EfiLibDeleteVariable (L"BootOrder", &gEfiGlobalVariableGuid);\r |
760 | }\r |
761 | \r |
762 | if (BootOrder != NULL) {\r |
763 | SafeFreePool (BootOrder);\r |
764 | }\r |
765 | \r |
766 | return Status;\r |
767 | }\r |
768 | \r |
769 | UINT16 *\r |
770 | BdsFillDevOrderBuf (\r |
771 | IN BBS_TABLE *BbsTable,\r |
772 | IN BBS_TYPE BbsType,\r |
773 | IN UINTN BbsCount,\r |
774 | IN UINT16 *Buf\r |
775 | )\r |
776 | {\r |
777 | UINTN Index;\r |
778 | \r |
779 | for (Index = 0; Index < BbsCount; Index++) {\r |
780 | if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {\r |
781 | continue;\r |
782 | }\r |
783 | \r |
784 | if (BbsTable[Index].DeviceType != BbsType) {\r |
785 | continue;\r |
786 | }\r |
787 | \r |
788 | *Buf = (UINT16) (Index & 0xFF);\r |
789 | Buf++;\r |
790 | }\r |
791 | \r |
792 | return Buf;\r |
793 | }\r |
794 | \r |
795 | EFI_STATUS\r |
796 | BdsCreateDevOrder (\r |
797 | IN BBS_TABLE *BbsTable,\r |
798 | IN UINT16 BbsCount\r |
799 | )\r |
800 | {\r |
801 | UINTN Index;\r |
802 | UINTN FDCount;\r |
803 | UINTN HDCount;\r |
804 | UINTN CDCount;\r |
805 | UINTN NETCount;\r |
806 | UINTN BEVCount;\r |
807 | UINTN TotalSize;\r |
808 | UINTN HeaderSize;\r |
809 | UINT8 *DevOrder;\r |
810 | UINT8 *Ptr;\r |
811 | EFI_STATUS Status;\r |
812 | \r |
813 | FDCount = 0;\r |
814 | HDCount = 0;\r |
815 | CDCount = 0;\r |
816 | NETCount = 0;\r |
817 | BEVCount = 0;\r |
818 | TotalSize = 0;\r |
819 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r |
820 | DevOrder = NULL;\r |
821 | Ptr = NULL;\r |
822 | Status = EFI_SUCCESS;\r |
823 | \r |
824 | for (Index = 0; Index < BbsCount; Index++) {\r |
825 | if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {\r |
826 | continue;\r |
827 | }\r |
828 | \r |
829 | switch (BbsTable[Index].DeviceType) {\r |
830 | case BBS_FLOPPY:\r |
831 | FDCount++;\r |
832 | break;\r |
833 | \r |
834 | case BBS_HARDDISK:\r |
835 | HDCount++;\r |
836 | break;\r |
837 | \r |
838 | case BBS_CDROM:\r |
839 | CDCount++;\r |
840 | break;\r |
841 | \r |
842 | case BBS_EMBED_NETWORK:\r |
843 | NETCount++;\r |
844 | break;\r |
845 | \r |
846 | case BBS_BEV_DEVICE:\r |
847 | BEVCount++;\r |
848 | break;\r |
849 | \r |
850 | default:\r |
851 | break;\r |
852 | }\r |
853 | }\r |
854 | \r |
855 | TotalSize += (HeaderSize + sizeof (UINT16) * FDCount);\r |
856 | TotalSize += (HeaderSize + sizeof (UINT16) * HDCount);\r |
857 | TotalSize += (HeaderSize + sizeof (UINT16) * CDCount);\r |
858 | TotalSize += (HeaderSize + sizeof (UINT16) * NETCount);\r |
859 | TotalSize += (HeaderSize + sizeof (UINT16) * BEVCount);\r |
860 | \r |
861 | DevOrder = AllocateZeroPool (TotalSize);\r |
862 | if (NULL == DevOrder) {\r |
863 | return EFI_OUT_OF_RESOURCES;\r |
864 | }\r |
865 | \r |
866 | Ptr = DevOrder;\r |
867 | \r |
868 | *((BBS_TYPE *) Ptr) = BBS_FLOPPY;\r |
869 | Ptr += sizeof (BBS_TYPE);\r |
870 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));\r |
871 | Ptr += sizeof (UINT16);\r |
872 | if (FDCount) {\r |
873 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_FLOPPY, BbsCount, (UINT16 *) Ptr);\r |
874 | }\r |
875 | \r |
876 | *((BBS_TYPE *) Ptr) = BBS_HARDDISK;\r |
877 | Ptr += sizeof (BBS_TYPE);\r |
878 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r |
879 | Ptr += sizeof (UINT16);\r |
880 | if (HDCount) {\r |
881 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_HARDDISK, BbsCount, (UINT16 *) Ptr);\r |
882 | }\r |
883 | \r |
884 | *((BBS_TYPE *) Ptr) = BBS_CDROM;\r |
885 | Ptr += sizeof (BBS_TYPE);\r |
886 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r |
887 | Ptr += sizeof (UINT16);\r |
888 | if (CDCount) {\r |
889 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_CDROM, BbsCount, (UINT16 *) Ptr);\r |
890 | }\r |
891 | \r |
892 | *((BBS_TYPE *) Ptr) = BBS_EMBED_NETWORK;\r |
893 | Ptr += sizeof (BBS_TYPE);\r |
894 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r |
895 | Ptr += sizeof (UINT16);\r |
896 | if (NETCount) {\r |
897 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_EMBED_NETWORK, BbsCount, (UINT16 *) Ptr);\r |
898 | }\r |
899 | \r |
900 | *((BBS_TYPE *) Ptr) = BBS_BEV_DEVICE;\r |
901 | Ptr += sizeof (BBS_TYPE);\r |
902 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r |
903 | Ptr += sizeof (UINT16);\r |
904 | if (BEVCount) {\r |
905 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_BEV_DEVICE, BbsCount, (UINT16 *) Ptr);\r |
906 | }\r |
907 | \r |
908 | Status = gRT->SetVariable (\r |
909 | VarLegacyDevOrder,\r |
910 | &EfiLegacyDevOrderGuid,\r |
911 | VAR_FLAG,\r |
912 | TotalSize,\r |
913 | DevOrder\r |
914 | );\r |
915 | SafeFreePool (DevOrder);\r |
916 | \r |
917 | return Status;\r |
918 | }\r |
919 | \r |
920 | EFI_STATUS\r |
921 | BdsUpdateLegacyDevOrder (\r |
922 | VOID\r |
923 | )\r |
924 | /*++\r |
925 | Format of LegacyDevOrder variable:\r |
926 | |-----------------------------------------------------------------------------------------------------------------\r |
927 | | BBS_FLOPPY | Length | Index0 | Index1 | ... | BBS_HARDDISK | Length | Index0 | Index1 | ... | BBS_CDROM | Length | Index0 | ...\r |
928 | |-----------------------------------------------------------------------------------------------------------------\r |
929 | \r |
930 | Length is a 16 bit integer, it indicates how many Indexes follows, including the size of itself.\r |
931 | Index# is a 16 bit integer, the low byte of it stands for the index in BBS table\r |
932 | the high byte of it only have two value 0 and 0xFF, 0xFF means this device has been\r |
933 | disabled by user.\r |
934 | --*/\r |
935 | {\r |
936 | UINT8 *DevOrder;\r |
937 | UINT8 *NewDevOrder;\r |
938 | UINTN DevOrderSize;\r |
939 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r |
940 | EFI_STATUS Status;\r |
941 | UINT16 HddCount;\r |
942 | UINT16 BbsCount;\r |
943 | HDD_INFO *LocalHddInfo;\r |
944 | BBS_TABLE *LocalBbsTable;\r |
945 | UINTN Index;\r |
946 | UINTN Index2;\r |
947 | UINTN *Idx;\r |
948 | UINTN FDCount;\r |
949 | UINTN HDCount;\r |
950 | UINTN CDCount;\r |
951 | UINTN NETCount;\r |
952 | UINTN BEVCount;\r |
953 | UINTN TotalSize;\r |
954 | UINTN HeaderSize;\r |
955 | UINT8 *Ptr;\r |
956 | UINT8 *NewPtr;\r |
957 | UINT16 *NewFDPtr;\r |
958 | UINT16 *NewHDPtr;\r |
959 | UINT16 *NewCDPtr;\r |
960 | UINT16 *NewNETPtr;\r |
961 | UINT16 *NewBEVPtr;\r |
962 | UINT16 *NewDevPtr;\r |
963 | UINT16 Length;\r |
964 | UINT16 tmp;\r |
965 | UINTN FDIndex;\r |
966 | UINTN HDIndex;\r |
967 | UINTN CDIndex;\r |
968 | UINTN NETIndex;\r |
969 | UINTN BEVIndex;\r |
970 | \r |
971 | LocalHddInfo = NULL;\r |
972 | LocalBbsTable = NULL;\r |
973 | Idx = NULL;\r |
974 | FDCount = 0;\r |
975 | HDCount = 0;\r |
976 | CDCount = 0;\r |
977 | NETCount = 0;\r |
978 | BEVCount = 0;\r |
979 | TotalSize = 0;\r |
980 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r |
981 | FDIndex = 0;\r |
982 | HDIndex = 0;\r |
983 | CDIndex = 0;\r |
984 | NETIndex = 0;\r |
985 | BEVIndex = 0;\r |
986 | NewDevPtr = NULL;\r |
987 | \r |
988 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);\r |
989 | if (EFI_ERROR (Status)) {\r |
990 | return Status;\r |
991 | }\r |
992 | \r |
993 | LegacyBios->GetBbsInfo (\r |
994 | LegacyBios,\r |
995 | &HddCount,\r |
996 | &LocalHddInfo,\r |
997 | &BbsCount,\r |
998 | &LocalBbsTable\r |
999 | );\r |
1000 | \r |
1001 | DevOrder = (UINT8 *) BdsLibGetVariableAndSize (\r |
1002 | VarLegacyDevOrder,\r |
1003 | &EfiLegacyDevOrderGuid,\r |
1004 | &DevOrderSize\r |
1005 | );\r |
1006 | if (NULL == DevOrder) {\r |
1007 | return BdsCreateDevOrder (LocalBbsTable, BbsCount);\r |
1008 | }\r |
1009 | //\r |
1010 | // First we figure out how many boot devices with same device type respectively\r |
1011 | //\r |
1012 | for (Index = 0; Index < BbsCount; Index++) {\r |
1013 | if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||\r |
1014 | (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM) ||\r |
1015 | (LocalBbsTable[Index].BootPriority == BBS_LOWEST_PRIORITY)\r |
1016 | ) {\r |
1017 | continue;\r |
1018 | }\r |
1019 | \r |
1020 | switch (LocalBbsTable[Index].DeviceType) {\r |
1021 | case BBS_FLOPPY:\r |
1022 | FDCount++;\r |
1023 | break;\r |
1024 | \r |
1025 | case BBS_HARDDISK:\r |
1026 | HDCount++;\r |
1027 | break;\r |
1028 | \r |
1029 | case BBS_CDROM:\r |
1030 | CDCount++;\r |
1031 | break;\r |
1032 | \r |
1033 | case BBS_EMBED_NETWORK:\r |
1034 | NETCount++;\r |
1035 | break;\r |
1036 | \r |
1037 | case BBS_BEV_DEVICE:\r |
1038 | BEVCount++;\r |
1039 | break;\r |
1040 | \r |
1041 | default:\r |
1042 | break;\r |
1043 | }\r |
1044 | }\r |
1045 | \r |
1046 | TotalSize += (HeaderSize + FDCount * sizeof (UINT16));\r |
1047 | TotalSize += (HeaderSize + HDCount * sizeof (UINT16));\r |
1048 | TotalSize += (HeaderSize + CDCount * sizeof (UINT16));\r |
1049 | TotalSize += (HeaderSize + NETCount * sizeof (UINT16));\r |
1050 | TotalSize += (HeaderSize + BEVCount * sizeof (UINT16));\r |
1051 | \r |
1052 | NewDevOrder = AllocateZeroPool (TotalSize);\r |
1053 | if (NULL == NewDevOrder) {\r |
1054 | return EFI_OUT_OF_RESOURCES;\r |
1055 | }\r |
1056 | \r |
1057 | NewFDPtr = (UINT16 *) (NewDevOrder + HeaderSize);\r |
1058 | NewHDPtr = (UINT16 *) ((UINT8 *) NewFDPtr + FDCount * sizeof (UINT16) + HeaderSize);\r |
1059 | NewCDPtr = (UINT16 *) ((UINT8 *) NewHDPtr + HDCount * sizeof (UINT16) + HeaderSize);\r |
1060 | NewNETPtr = (UINT16 *) ((UINT8 *) NewCDPtr + CDCount * sizeof (UINT16) + HeaderSize);\r |
1061 | NewBEVPtr = (UINT16 *) ((UINT8 *) NewNETPtr + NETCount * sizeof (UINT16) + HeaderSize);\r |
1062 | \r |
1063 | //\r |
1064 | // copy FD\r |
1065 | //\r |
1066 | Ptr = DevOrder;\r |
1067 | NewPtr = NewDevOrder;\r |
1068 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r |
1069 | Ptr += sizeof (BBS_TYPE);\r |
1070 | NewPtr += sizeof (BBS_TYPE);\r |
1071 | Length = *((UINT16 *) Ptr);\r |
1072 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));\r |
1073 | Ptr += sizeof (UINT16);\r |
1074 | \r |
1075 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r |
1076 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r |
1077 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r |
1078 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r |
1079 | LocalBbsTable[*Ptr].DeviceType != BBS_FLOPPY\r |
1080 | ) {\r |
1081 | Ptr += sizeof (UINT16);\r |
1082 | continue;\r |
1083 | }\r |
1084 | \r |
1085 | NewFDPtr[FDIndex] = *(UINT16 *) Ptr;\r |
1086 | FDIndex++;\r |
1087 | Ptr += sizeof (UINT16);\r |
1088 | }\r |
1089 | //\r |
1090 | // copy HD\r |
1091 | //\r |
1092 | NewPtr = (UINT8 *) NewHDPtr - HeaderSize;\r |
1093 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r |
1094 | Ptr += sizeof (BBS_TYPE);\r |
1095 | NewPtr += sizeof (BBS_TYPE);\r |
1096 | Length = *((UINT16 *) Ptr);\r |
1097 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r |
1098 | Ptr += sizeof (UINT16);\r |
1099 | \r |
1100 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r |
1101 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r |
1102 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r |
1103 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r |
1104 | LocalBbsTable[*Ptr].DeviceType != BBS_HARDDISK\r |
1105 | ) {\r |
1106 | Ptr += sizeof (UINT16);\r |
1107 | continue;\r |
1108 | }\r |
1109 | \r |
1110 | NewHDPtr[HDIndex] = *(UINT16 *) Ptr;\r |
1111 | HDIndex++;\r |
1112 | Ptr += sizeof (UINT16);\r |
1113 | }\r |
1114 | //\r |
1115 | // copy CD\r |
1116 | //\r |
1117 | NewPtr = (UINT8 *) NewCDPtr - HeaderSize;\r |
1118 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r |
1119 | Ptr += sizeof (BBS_TYPE);\r |
1120 | NewPtr += sizeof (BBS_TYPE);\r |
1121 | Length = *((UINT16 *) Ptr);\r |
1122 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r |
1123 | Ptr += sizeof (UINT16);\r |
1124 | \r |
1125 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r |
1126 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r |
1127 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r |
1128 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r |
1129 | LocalBbsTable[*Ptr].DeviceType != BBS_CDROM\r |
1130 | ) {\r |
1131 | Ptr += sizeof (UINT16);\r |
1132 | continue;\r |
1133 | }\r |
1134 | \r |
1135 | NewCDPtr[CDIndex] = *(UINT16 *) Ptr;\r |
1136 | CDIndex++;\r |
1137 | Ptr += sizeof (UINT16);\r |
1138 | }\r |
1139 | //\r |
1140 | // copy NET\r |
1141 | //\r |
1142 | NewPtr = (UINT8 *) NewNETPtr - HeaderSize;\r |
1143 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r |
1144 | Ptr += sizeof (BBS_TYPE);\r |
1145 | NewPtr += sizeof (BBS_TYPE);\r |
1146 | Length = *((UINT16 *) Ptr);\r |
1147 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r |
1148 | Ptr += sizeof (UINT16);\r |
1149 | \r |
1150 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r |
1151 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r |
1152 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r |
1153 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r |
1154 | LocalBbsTable[*Ptr].DeviceType != BBS_EMBED_NETWORK\r |
1155 | ) {\r |
1156 | Ptr += sizeof (UINT16);\r |
1157 | continue;\r |
1158 | }\r |
1159 | \r |
1160 | NewNETPtr[NETIndex] = *(UINT16 *) Ptr;\r |
1161 | NETIndex++;\r |
1162 | Ptr += sizeof (UINT16);\r |
1163 | }\r |
1164 | //\r |
1165 | // copy BEV\r |
1166 | //\r |
1167 | NewPtr = (UINT8 *) NewBEVPtr - HeaderSize;\r |
1168 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r |
1169 | Ptr += sizeof (BBS_TYPE);\r |
1170 | NewPtr += sizeof (BBS_TYPE);\r |
1171 | Length = *((UINT16 *) Ptr);\r |
1172 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r |
1173 | Ptr += sizeof (UINT16);\r |
1174 | \r |
1175 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r |
1176 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r |
1177 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r |
1178 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r |
1179 | LocalBbsTable[*Ptr].DeviceType != BBS_BEV_DEVICE\r |
1180 | ) {\r |
1181 | Ptr += sizeof (UINT16);\r |
1182 | continue;\r |
1183 | }\r |
1184 | \r |
1185 | NewBEVPtr[BEVIndex] = *(UINT16 *) Ptr;\r |
1186 | BEVIndex++;\r |
1187 | Ptr += sizeof (UINT16);\r |
1188 | }\r |
1189 | \r |
1190 | for (Index = 0; Index < BbsCount; Index++) {\r |
1191 | if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||\r |
1192 | (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM) ||\r |
1193 | (LocalBbsTable[Index].BootPriority == BBS_LOWEST_PRIORITY)\r |
1194 | ) {\r |
1195 | continue;\r |
1196 | }\r |
1197 | \r |
1198 | switch (LocalBbsTable[Index].DeviceType) {\r |
1199 | case BBS_FLOPPY:\r |
1200 | Idx = &FDIndex;\r |
1201 | NewDevPtr = NewFDPtr;\r |
1202 | break;\r |
1203 | \r |
1204 | case BBS_HARDDISK:\r |
1205 | Idx = &HDIndex;\r |
1206 | NewDevPtr = NewHDPtr;\r |
1207 | break;\r |
1208 | \r |
1209 | case BBS_CDROM:\r |
1210 | Idx = &CDIndex;\r |
1211 | NewDevPtr = NewCDPtr;\r |
1212 | break;\r |
1213 | \r |
1214 | case BBS_EMBED_NETWORK:\r |
1215 | Idx = &NETIndex;\r |
1216 | NewDevPtr = NewNETPtr;\r |
1217 | break;\r |
1218 | \r |
1219 | case BBS_BEV_DEVICE:\r |
1220 | Idx = &BEVIndex;\r |
1221 | NewDevPtr = NewBEVPtr;\r |
1222 | break;\r |
1223 | \r |
1224 | default:\r |
1225 | Idx = NULL;\r |
1226 | break;\r |
1227 | }\r |
1228 | //\r |
1229 | // at this point we have copied those valid indexes to new buffer\r |
1230 | // and we should check if there is any new appeared boot device\r |
1231 | //\r |
1232 | if (Idx) {\r |
1233 | for (Index2 = 0; Index2 < *Idx; Index2++) {\r |
1234 | if ((NewDevPtr[Index2] & 0xFF) == (UINT16) Index) {\r |
1235 | break;\r |
1236 | }\r |
1237 | }\r |
1238 | \r |
1239 | if (Index2 == *Idx) {\r |
1240 | //\r |
1241 | // Index2 == *Idx means we didn't find Index\r |
1242 | // so Index is a new appeared device's index in BBS table\r |
1243 | // save it.\r |
1244 | //\r |
1245 | NewDevPtr[*Idx] = (UINT16) (Index & 0xFF);\r |
1246 | (*Idx)++;\r |
1247 | }\r |
1248 | }\r |
1249 | }\r |
1250 | \r |
1251 | if (FDCount) {\r |
1252 | //\r |
1253 | // Just to make sure that disabled indexes are all at the end of the array\r |
1254 | //\r |
1255 | for (Index = 0; Index < FDIndex - 1; Index++) {\r |
1256 | if (0xFF00 != (NewFDPtr[Index] & 0xFF00)) {\r |
1257 | continue;\r |
1258 | }\r |
1259 | \r |
1260 | for (Index2 = Index + 1; Index2 < FDIndex; Index2++) {\r |
1261 | if (0 == (NewFDPtr[Index2] & 0xFF00)) {\r |
1262 | tmp = NewFDPtr[Index];\r |
1263 | NewFDPtr[Index] = NewFDPtr[Index2];\r |
1264 | NewFDPtr[Index2] = tmp;\r |
1265 | break;\r |
1266 | }\r |
1267 | }\r |
1268 | }\r |
1269 | }\r |
1270 | \r |
1271 | if (HDCount) {\r |
1272 | //\r |
1273 | // Just to make sure that disabled indexes are all at the end of the array\r |
1274 | //\r |
1275 | for (Index = 0; Index < HDIndex - 1; Index++) {\r |
1276 | if (0xFF00 != (NewHDPtr[Index] & 0xFF00)) {\r |
1277 | continue;\r |
1278 | }\r |
1279 | \r |
1280 | for (Index2 = Index + 1; Index2 < HDIndex; Index2++) {\r |
1281 | if (0 == (NewHDPtr[Index2] & 0xFF00)) {\r |
1282 | tmp = NewHDPtr[Index];\r |
1283 | NewHDPtr[Index] = NewHDPtr[Index2];\r |
1284 | NewHDPtr[Index2] = tmp;\r |
1285 | break;\r |
1286 | }\r |
1287 | }\r |
1288 | }\r |
1289 | }\r |
1290 | \r |
1291 | if (CDCount) {\r |
1292 | //\r |
1293 | // Just to make sure that disabled indexes are all at the end of the array\r |
1294 | //\r |
1295 | for (Index = 0; Index < CDIndex - 1; Index++) {\r |
1296 | if (0xFF00 != (NewCDPtr[Index] & 0xFF00)) {\r |
1297 | continue;\r |
1298 | }\r |
1299 | \r |
1300 | for (Index2 = Index + 1; Index2 < CDIndex; Index2++) {\r |
1301 | if (0 == (NewCDPtr[Index2] & 0xFF00)) {\r |
1302 | tmp = NewCDPtr[Index];\r |
1303 | NewCDPtr[Index] = NewCDPtr[Index2];\r |
1304 | NewCDPtr[Index2] = tmp;\r |
1305 | break;\r |
1306 | }\r |
1307 | }\r |
1308 | }\r |
1309 | }\r |
1310 | \r |
1311 | if (NETCount) {\r |
1312 | //\r |
1313 | // Just to make sure that disabled indexes are all at the end of the array\r |
1314 | //\r |
1315 | for (Index = 0; Index < NETIndex - 1; Index++) {\r |
1316 | if (0xFF00 != (NewNETPtr[Index] & 0xFF00)) {\r |
1317 | continue;\r |
1318 | }\r |
1319 | \r |
1320 | for (Index2 = Index + 1; Index2 < NETIndex; Index2++) {\r |
1321 | if (0 == (NewNETPtr[Index2] & 0xFF00)) {\r |
1322 | tmp = NewNETPtr[Index];\r |
1323 | NewNETPtr[Index] = NewNETPtr[Index2];\r |
1324 | NewNETPtr[Index2] = tmp;\r |
1325 | break;\r |
1326 | }\r |
1327 | }\r |
1328 | }\r |
1329 | }\r |
1330 | \r |
1331 | if (BEVCount) {\r |
1332 | //\r |
1333 | // Just to make sure that disabled indexes are all at the end of the array\r |
1334 | //\r |
1335 | for (Index = 0; Index < BEVIndex - 1; Index++) {\r |
1336 | if (0xFF00 != (NewBEVPtr[Index] & 0xFF00)) {\r |
1337 | continue;\r |
1338 | }\r |
1339 | \r |
1340 | for (Index2 = Index + 1; Index2 < BEVIndex; Index2++) {\r |
1341 | if (0 == (NewBEVPtr[Index2] & 0xFF00)) {\r |
1342 | tmp = NewBEVPtr[Index];\r |
1343 | NewBEVPtr[Index] = NewBEVPtr[Index2];\r |
1344 | NewBEVPtr[Index2] = tmp;\r |
1345 | break;\r |
1346 | }\r |
1347 | }\r |
1348 | }\r |
1349 | }\r |
1350 | \r |
1351 | SafeFreePool (DevOrder);\r |
1352 | \r |
1353 | Status = gRT->SetVariable (\r |
1354 | VarLegacyDevOrder,\r |
1355 | &EfiLegacyDevOrderGuid,\r |
1356 | VAR_FLAG,\r |
1357 | TotalSize,\r |
1358 | NewDevOrder\r |
1359 | );\r |
1360 | SafeFreePool (NewDevOrder);\r |
1361 | \r |
1362 | return Status;\r |
1363 | }\r |
1364 | \r |
1365 | EFI_STATUS\r |
1366 | BdsSetBootPriority4SameTypeDev (\r |
1367 | IN UINT16 DeviceType,\r |
1368 | IN OUT BBS_TABLE *LocalBbsTable,\r |
1369 | IN OUT UINT16 *Priority\r |
1370 | )\r |
1371 | /*++\r |
1372 | DeviceType - BBS_FLOPPY, BBS_HARDDISK, BBS_CDROM and so on\r |
1373 | LocalBbsTable - BBS table instance\r |
1374 | Priority - As input arg, it is the start point of boot priority, as output arg, it is the start point of boot\r |
1375 | priority can be used next time.\r |
1376 | --*/\r |
1377 | {\r |
1378 | UINT8 *DevOrder;\r |
1379 | \r |
1380 | UINT8 *OrigBuffer;\r |
1381 | UINT16 *DevIndex;\r |
1382 | UINTN DevOrderSize;\r |
1383 | UINTN DevCount;\r |
1384 | UINTN Index;\r |
1385 | \r |
1386 | DevOrder = BdsLibGetVariableAndSize (\r |
1387 | VarLegacyDevOrder,\r |
1388 | &EfiLegacyDevOrderGuid,\r |
1389 | &DevOrderSize\r |
1390 | );\r |
1391 | if (NULL == DevOrder) {\r |
1392 | return EFI_OUT_OF_RESOURCES;\r |
1393 | }\r |
1394 | \r |
1395 | OrigBuffer = DevOrder;\r |
1396 | while (DevOrder < OrigBuffer + DevOrderSize) {\r |
1397 | if (DeviceType == * (BBS_TYPE *) DevOrder) {\r |
1398 | break;\r |
1399 | }\r |
1400 | \r |
1401 | DevOrder += sizeof (BBS_TYPE);\r |
1402 | DevOrder += *(UINT16 *) DevOrder;\r |
1403 | }\r |
1404 | \r |
1405 | if (DevOrder >= OrigBuffer + DevOrderSize) {\r |
1406 | SafeFreePool (OrigBuffer);\r |
1407 | return EFI_NOT_FOUND;\r |
1408 | }\r |
1409 | \r |
1410 | DevOrder += sizeof (BBS_TYPE);\r |
1411 | DevCount = (*((UINT16 *) DevOrder) - sizeof (UINT16)) / sizeof (UINT16);\r |
1412 | DevIndex = (UINT16 *) (DevOrder + sizeof (UINT16));\r |
1413 | //\r |
1414 | // If the high byte of the DevIndex is 0xFF, it indicates that this device has been disabled.\r |
1415 | //\r |
1416 | for (Index = 0; Index < DevCount; Index++) {\r |
1417 | if ((DevIndex[Index] & 0xFF00) == 0xFF00) {\r |
1418 | //\r |
1419 | // LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = BBS_DISABLED_ENTRY;\r |
1420 | //\r |
1421 | } else {\r |
1422 | LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = *Priority;\r |
1423 | (*Priority)++;\r |
1424 | }\r |
1425 | }\r |
1426 | \r |
1427 | SafeFreePool (OrigBuffer);\r |
1428 | return EFI_SUCCESS;\r |
1429 | }\r |
1430 | \r |
1431 | VOID\r |
1432 | PrintBbsTable (\r |
1433 | IN BBS_TABLE *LocalBbsTable\r |
1434 | )\r |
1435 | {\r |
1436 | UINT16 Idx;\r |
1437 | \r |
1438 | DEBUG ((EFI_D_ERROR, "\n"));\r |
1439 | DEBUG ((EFI_D_ERROR, " NO Prio bb/dd/ff cl/sc Type Stat segm:offs\n"));\r |
1440 | DEBUG ((EFI_D_ERROR, "=============================================\n"));\r |
1441 | for (Idx = 0; Idx < MAX_BBS_ENTRIES; Idx++) {\r |
1442 | if ((LocalBbsTable[Idx].BootPriority == BBS_IGNORE_ENTRY) ||\r |
1443 | (LocalBbsTable[Idx].BootPriority == BBS_DO_NOT_BOOT_FROM) ||\r |
1444 | (LocalBbsTable[Idx].BootPriority == BBS_LOWEST_PRIORITY)\r |
1445 | ) {\r |
1446 | continue;\r |
1447 | }\r |
1448 | \r |
1449 | DEBUG (\r |
1450 | (EFI_D_ERROR,\r |
1451 | " %02x: %04x %02x/%02x/%02x %02x/02%x %04x %04x %04x:%04x\n",\r |
1452 | (UINTN) Idx,\r |
1453 | (UINTN) LocalBbsTable[Idx].BootPriority,\r |
1454 | (UINTN) LocalBbsTable[Idx].Bus,\r |
1455 | (UINTN) LocalBbsTable[Idx].Device,\r |
1456 | (UINTN) LocalBbsTable[Idx].Function,\r |
1457 | (UINTN) LocalBbsTable[Idx].Class,\r |
1458 | (UINTN) LocalBbsTable[Idx].SubClass,\r |
1459 | (UINTN) LocalBbsTable[Idx].DeviceType,\r |
1460 | (UINTN) * (UINT16 *) &LocalBbsTable[Idx].StatusFlags,\r |
1461 | (UINTN) LocalBbsTable[Idx].BootHandlerSegment,\r |
1462 | (UINTN) LocalBbsTable[Idx].BootHandlerOffset,\r |
1463 | (UINTN) ((LocalBbsTable[Idx].MfgStringSegment << 4) + LocalBbsTable[Idx].MfgStringOffset),\r |
1464 | (UINTN) ((LocalBbsTable[Idx].DescStringSegment << 4) + LocalBbsTable[Idx].DescStringOffset))\r |
1465 | );\r |
1466 | }\r |
1467 | \r |
1468 | DEBUG ((EFI_D_ERROR, "\n"));\r |
1469 | }\r |
1470 | \r |
1471 | EFI_STATUS\r |
1472 | BdsRefreshBbsTableForBoot (\r |
1473 | IN BDS_COMMON_OPTION *Entry\r |
1474 | )\r |
1475 | {\r |
1476 | EFI_STATUS Status;\r |
1477 | UINT16 HddCount;\r |
1478 | UINT16 BbsCount;\r |
1479 | HDD_INFO *LocalHddInfo;\r |
1480 | BBS_TABLE *LocalBbsTable;\r |
1481 | UINT16 DevType;\r |
1482 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r |
1483 | UINTN Index;\r |
1484 | UINT16 Priority;\r |
1485 | UINT16 *BootOrder;\r |
1486 | UINTN BootOrderSize;\r |
1487 | UINT8 *BootOptionVar;\r |
1488 | UINTN BootOptionSize;\r |
1489 | UINT16 BootOption[100];\r |
1490 | UINT8 *Ptr;\r |
1491 | UINT16 DevPathLen;\r |
1492 | EFI_DEVICE_PATH_PROTOCOL *DevPath;\r |
1493 | \r |
1494 | HddCount = 0;\r |
1495 | BbsCount = 0;\r |
1496 | LocalHddInfo = NULL;\r |
1497 | LocalBbsTable = NULL;\r |
1498 | DevType = BBS_UNKNOWN;\r |
1499 | \r |
1500 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, &LegacyBios);\r |
1501 | if (EFI_ERROR (Status)) {\r |
1502 | return Status;\r |
1503 | }\r |
1504 | \r |
1505 | LegacyBios->GetBbsInfo (\r |
1506 | LegacyBios,\r |
1507 | &HddCount,\r |
1508 | &LocalHddInfo,\r |
1509 | &BbsCount,\r |
1510 | &LocalBbsTable\r |
1511 | );\r |
1512 | //\r |
1513 | // First, set all the present devices' boot priority to BBS_UNPRIORITIZED_ENTRY\r |
1514 | // We will set them according to the settings setup by user\r |
1515 | //\r |
1516 | for (Index = 0; Index < BbsCount; Index++) {\r |
1517 | if (!((BBS_IGNORE_ENTRY == LocalBbsTable[Index].BootPriority) ||\r |
1518 | (BBS_DO_NOT_BOOT_FROM == LocalBbsTable[Index].BootPriority) ||\r |
1519 | (BBS_LOWEST_PRIORITY == LocalBbsTable[Index].BootPriority))) {\r |
1520 | LocalBbsTable[Index].BootPriority = BBS_UNPRIORITIZED_ENTRY;\r |
1521 | }\r |
1522 | }\r |
1523 | //\r |
1524 | // boot priority always starts at 0\r |
1525 | //\r |
1526 | Priority = 0;\r |
1527 | if (Entry->LoadOptionsSize == sizeof (BBS_TABLE) + sizeof (UINT16)) {\r |
1528 | //\r |
1529 | // If Entry stands for a legacy boot option, we prioritize the devices with the same type first.\r |
1530 | //\r |
1531 | DevType = ((BBS_TABLE *) Entry->LoadOptions)->DeviceType;\r |
1532 | Status = BdsSetBootPriority4SameTypeDev (\r |
1533 | DevType,\r |
1534 | LocalBbsTable,\r |
1535 | &Priority\r |
1536 | );\r |
1537 | if (EFI_ERROR (Status)) {\r |
1538 | return Status;\r |
1539 | }\r |
1540 | }\r |
1541 | //\r |
1542 | // we have to set the boot priority for other BBS entries with different device types\r |
1543 | //\r |
1544 | BootOrder = (UINT16 *) BdsLibGetVariableAndSize (\r |
1545 | L"BootOrder",\r |
1546 | &gEfiGlobalVariableGuid,\r |
1547 | &BootOrderSize\r |
1548 | );\r |
1549 | for (Index = 0; BootOrder && Index < BootOrderSize / sizeof (UINT16); Index++) {\r |
1550 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r |
1551 | BootOptionVar = BdsLibGetVariableAndSize (\r |
1552 | BootOption,\r |
1553 | &gEfiGlobalVariableGuid,\r |
1554 | &BootOptionSize\r |
1555 | );\r |
1556 | if (NULL == BootOptionVar) {\r |
1557 | continue;\r |
1558 | }\r |
1559 | \r |
1560 | Ptr = BootOptionVar;\r |
1561 | \r |
1562 | Ptr += sizeof (UINT32);\r |
1563 | DevPathLen = *(UINT16 *) Ptr;\r |
1564 | Ptr += sizeof (UINT16);\r |
1565 | Ptr += StrSize ((UINT16 *) Ptr);\r |
1566 | DevPath = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;\r |
1567 | if (BBS_DEVICE_PATH != DevPath->Type || BBS_BBS_DP != DevPath->SubType) {\r |
1568 | SafeFreePool (BootOptionVar);\r |
1569 | continue;\r |
1570 | }\r |
1571 | \r |
1572 | Ptr += DevPathLen;\r |
1573 | if (DevType == ((BBS_TABLE *) Ptr)->DeviceType) {\r |
1574 | //\r |
1575 | // We don't want to process twice for a device type\r |
1576 | //\r |
1577 | SafeFreePool (BootOptionVar);\r |
1578 | continue;\r |
1579 | }\r |
1580 | \r |
1581 | Status = BdsSetBootPriority4SameTypeDev (\r |
1582 | ((BBS_TABLE *) Ptr)->DeviceType,\r |
1583 | LocalBbsTable,\r |
1584 | &Priority\r |
1585 | );\r |
1586 | SafeFreePool (BootOptionVar);\r |
1587 | if (EFI_ERROR (Status)) {\r |
1588 | break;\r |
1589 | }\r |
1590 | }\r |
1591 | \r |
1592 | if (BootOrder) {\r |
1593 | SafeFreePool (BootOrder);\r |
1594 | }\r |
1595 | //\r |
1596 | // For debug\r |
1597 | //\r |
1598 | PrintBbsTable (LocalBbsTable);\r |
1599 | \r |
1600 | return Status;\r |
1601 | }\r |