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93e3992d | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2004 - 2008, 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 | |
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 | UINTN\r | |
75 | UnicodeToAscii (\r | |
76 | IN CHAR16 *UStr,\r | |
77 | IN UINTN Length,\r | |
78 | OUT CHAR8 *AStr\r | |
79 | )\r | |
80 | /*++\r | |
81 | Routine Description:\r | |
82 | \r | |
83 | change a Unicode string t ASCII string\r | |
84 | \r | |
85 | Arguments:\r | |
86 | \r | |
87 | UStr - Unicode string\r | |
88 | Lenght - most possible length of AStr\r | |
89 | AStr - ASCII string to pass out\r | |
90 | \r | |
91 | Returns:\r | |
92 | \r | |
93 | Actuall length\r | |
94 | \r | |
95 | --*/\r | |
96 | {\r | |
97 | UINTN Index;\r | |
98 | \r | |
99 | //\r | |
100 | // just buffer copy, not character copy\r | |
101 | //\r | |
102 | for (Index = 0; Index < Length; Index++) {\r | |
103 | *AStr++ = (CHAR8) *UStr++;\r | |
104 | }\r | |
105 | \r | |
106 | return Index;\r | |
107 | }\r | |
108 | \r | |
109 | VOID\r | |
110 | BdsBuildLegacyDevNameString (\r | |
111 | IN BBS_TABLE *CurBBSEntry,\r | |
112 | IN UINTN Index,\r | |
113 | IN UINTN BufSize,\r | |
114 | OUT CHAR16 *BootString\r | |
115 | )\r | |
116 | {\r | |
117 | CHAR16 *Fmt;\r | |
118 | CHAR16 *Type;\r | |
119 | UINT8 *StringDesc;\r | |
120 | CHAR16 temp[80];\r | |
121 | \r | |
122 | switch (Index) {\r | |
123 | //\r | |
124 | // Primary Master\r | |
125 | //\r | |
126 | case 1:\r | |
127 | Fmt = L"Primary Master %s";\r | |
128 | break;\r | |
129 | \r | |
130 | //\r | |
131 | // Primary Slave\r | |
132 | //\r | |
133 | case 2:\r | |
134 | Fmt = L"Primary Slave %s";\r | |
135 | break;\r | |
136 | \r | |
137 | //\r | |
138 | // Secondary Master\r | |
139 | //\r | |
140 | case 3:\r | |
141 | Fmt = L"Secondary Master %s";\r | |
142 | break;\r | |
143 | \r | |
144 | //\r | |
145 | // Secondary Slave\r | |
146 | //\r | |
147 | case 4:\r | |
148 | Fmt = L"Secondary Slave %s";\r | |
149 | break;\r | |
150 | \r | |
151 | default:\r | |
152 | Fmt = L"%s";\r | |
153 | break;\r | |
154 | }\r | |
155 | \r | |
156 | switch (CurBBSEntry->DeviceType) {\r | |
157 | case BBS_FLOPPY:\r | |
158 | Type = L"Floppy";\r | |
159 | break;\r | |
160 | \r | |
161 | case BBS_HARDDISK:\r | |
162 | Type = L"Harddisk";\r | |
163 | break;\r | |
164 | \r | |
165 | case BBS_CDROM:\r | |
166 | Type = L"CDROM";\r | |
167 | break;\r | |
168 | \r | |
169 | case BBS_PCMCIA:\r | |
170 | Type = L"PCMCIAe";\r | |
171 | break;\r | |
172 | \r | |
173 | case BBS_USB:\r | |
174 | Type = L"USB";\r | |
175 | break;\r | |
176 | \r | |
177 | case BBS_EMBED_NETWORK:\r | |
178 | Type = L"Network";\r | |
179 | break;\r | |
180 | \r | |
181 | case BBS_BEV_DEVICE:\r | |
182 | Type = L"BEVe";\r | |
183 | break;\r | |
184 | \r | |
185 | case BBS_UNKNOWN:\r | |
186 | default:\r | |
187 | Type = L"Unknown";\r | |
188 | break;\r | |
189 | }\r | |
190 | //\r | |
191 | // If current BBS entry has its description then use it.\r | |
192 | //\r | |
193 | StringDesc = (UINT8 *) (UINTN) ((CurBBSEntry->DescStringSegment << 4) + CurBBSEntry->DescStringOffset);\r | |
194 | if (NULL != StringDesc) {\r | |
195 | //\r | |
196 | // Only get fisrt 32 characters, this is suggested by BBS spec\r | |
197 | //\r | |
198 | AsciiToUnicodeSize (StringDesc, 32, temp);\r | |
199 | Fmt = L"%s";\r | |
200 | Type = temp;\r | |
201 | }\r | |
202 | \r | |
203 | //\r | |
204 | // BbsTable 16 entries are for onboard IDE.\r | |
205 | // Set description string for SATA harddisks, Harddisk 0 ~ Harddisk 11\r | |
206 | //\r | |
207 | if (Index >= 5 && Index <= 16 && CurBBSEntry->DeviceType == BBS_HARDDISK) {\r | |
208 | Fmt = L"%s %d";\r | |
209 | UnicodeSPrint (BootString, BufSize, Fmt, Type, Index - 5);\r | |
210 | } else {\r | |
211 | UnicodeSPrint (BootString, BufSize, Fmt, Type);\r | |
212 | }\r | |
213 | }\r | |
214 | \r | |
215 | EFI_STATUS\r | |
216 | BdsCreateLegacyBootOption (\r | |
217 | IN BBS_TABLE *CurrentBbsEntry,\r | |
218 | IN EFI_DEVICE_PATH_PROTOCOL *CurrentBbsDevPath,\r | |
219 | IN UINTN Index,\r | |
220 | IN OUT UINT16 **BootOrderList,\r | |
221 | IN OUT UINTN *BootOrderListSize\r | |
222 | )\r | |
223 | /*++\r | |
224 | \r | |
225 | Routine Description:\r | |
226 | \r | |
227 | Create a legacy boot option for the specified entry of\r | |
228 | BBS table, save it as variable, and append it to the boot\r | |
229 | order list.\r | |
230 | \r | |
231 | Arguments:\r | |
232 | \r | |
233 | CurrentBbsEntry - Pointer to current BBS table.\r | |
234 | CurrentBbsDevPath - Pointer to the Device Path Protocol instance of BBS\r | |
235 | Index - Index of the specified entry in BBS table.\r | |
236 | BootOrderList - On input, the original boot order list.\r | |
237 | On output, the new boot order list attached with the\r | |
238 | created node.\r | |
239 | BootOrderListSize - On input, the original size of boot order list.\r | |
240 | - On output, the size of new boot order list.\r | |
241 | \r | |
242 | Returns:\r | |
243 | \r | |
244 | EFI_SUCCESS - Boot Option successfully created.\r | |
245 | EFI_OUT_OF_RESOURCES - Fail to allocate necessary memory.\r | |
246 | Other - Error occurs while setting variable.\r | |
247 | \r | |
248 | --*/\r | |
249 | {\r | |
250 | EFI_STATUS Status;\r | |
251 | UINT16 CurrentBootOptionNo;\r | |
252 | UINT16 BootString[10];\r | |
253 | UINT16 BootDesc[100];\r | |
254 | CHAR8 HelpString[100];\r | |
255 | UINT16 *NewBootOrderList;\r | |
256 | UINTN BufferSize;\r | |
257 | UINTN StringLen;\r | |
258 | VOID *Buffer;\r | |
259 | UINT8 *Ptr;\r | |
260 | UINT16 CurrentBbsDevPathSize;\r | |
261 | UINTN BootOrderIndex;\r | |
262 | UINTN BootOrderLastIndex;\r | |
263 | UINTN ArrayIndex;\r | |
264 | BOOLEAN IndexNotFound;\r | |
265 | BBS_BBS_DEVICE_PATH *NewBbsDevPathNode;\r | |
266 | \r | |
267 | if (NULL == (*BootOrderList)) {\r | |
268 | CurrentBootOptionNo = 0;\r | |
269 | } else {\r | |
270 | for (ArrayIndex = 0; ArrayIndex < (UINTN) (*BootOrderListSize / sizeof (UINT16)); ArrayIndex++) {\r | |
271 | IndexNotFound = TRUE;\r | |
272 | for (BootOrderIndex = 0; BootOrderIndex < (UINTN) (*BootOrderListSize / sizeof (UINT16)); BootOrderIndex++) {\r | |
273 | if ((*BootOrderList)[BootOrderIndex] == ArrayIndex) {\r | |
274 | IndexNotFound = FALSE;\r | |
275 | break;\r | |
276 | }\r | |
277 | }\r | |
278 | \r | |
279 | if (!IndexNotFound) {\r | |
280 | continue;\r | |
281 | } else {\r | |
282 | break;\r | |
283 | }\r | |
284 | }\r | |
285 | \r | |
286 | CurrentBootOptionNo = (UINT16) ArrayIndex;\r | |
287 | }\r | |
288 | \r | |
289 | UnicodeSPrint (\r | |
290 | BootString,\r | |
291 | sizeof (BootString),\r | |
292 | L"Boot%04x",\r | |
293 | CurrentBootOptionNo\r | |
294 | );\r | |
295 | \r | |
296 | BdsBuildLegacyDevNameString (CurrentBbsEntry, Index, sizeof (BootDesc), BootDesc);\r | |
297 | \r | |
298 | //\r | |
299 | // Create new BBS device path node with description string\r | |
300 | //\r | |
301 | UnicodeToAscii (BootDesc, StrSize (BootDesc), HelpString);\r | |
302 | StringLen = AsciiStrLen (HelpString);\r | |
303 | NewBbsDevPathNode = EfiAllocateZeroPool (sizeof (BBS_BBS_DEVICE_PATH) + StringLen);\r | |
304 | if (NewBbsDevPathNode == NULL) {\r | |
305 | return EFI_OUT_OF_RESOURCES;\r | |
306 | }\r | |
307 | CopyMem (NewBbsDevPathNode, CurrentBbsDevPath, sizeof (BBS_BBS_DEVICE_PATH));\r | |
308 | CopyMem (NewBbsDevPathNode->String, HelpString, StringLen + 1);\r | |
309 | SetDevicePathNodeLength (&(NewBbsDevPathNode->Header), sizeof (BBS_BBS_DEVICE_PATH) + StringLen);\r | |
310 | \r | |
311 | //\r | |
312 | // Create entire new CurrentBbsDevPath with end node\r | |
313 | //\r | |
314 | CurrentBbsDevPath = AppendDevicePathNode (\r | |
315 | EndDevicePath,\r | |
316 | (EFI_DEVICE_PATH_PROTOCOL *) NewBbsDevPathNode\r | |
317 | );\r | |
318 | if (CurrentBbsDevPath == NULL) {\r | |
319 | FreePool (NewBbsDevPathNode);\r | |
320 | return EFI_OUT_OF_RESOURCES;\r | |
321 | }\r | |
322 | \r | |
323 | CurrentBbsDevPathSize = (UINT16) (GetDevicePathSize (CurrentBbsDevPath));\r | |
324 | \r | |
325 | BufferSize = sizeof (UINT32) +\r | |
326 | sizeof (UINT16) +\r | |
327 | StrSize (BootDesc) +\r | |
328 | CurrentBbsDevPathSize +\r | |
329 | sizeof (BBS_TABLE) +\r | |
330 | sizeof (UINT16);\r | |
331 | \r | |
332 | Buffer = EfiAllocateZeroPool (BufferSize);\r | |
333 | if (Buffer == NULL) {\r | |
334 | FreePool (NewBbsDevPathNode);\r | |
335 | FreePool (CurrentBbsDevPath);\r | |
336 | return EFI_OUT_OF_RESOURCES;\r | |
337 | }\r | |
338 | \r | |
339 | Ptr = (UINT8 *) Buffer;\r | |
340 | \r | |
341 | *((UINT32 *) Ptr) = LOAD_OPTION_ACTIVE;\r | |
342 | Ptr += sizeof (UINT32);\r | |
343 | \r | |
344 | *((UINT16 *) Ptr) = CurrentBbsDevPathSize;\r | |
345 | Ptr += sizeof (UINT16);\r | |
346 | \r | |
347 | CopyMem (\r | |
348 | Ptr,\r | |
349 | BootDesc,\r | |
350 | StrSize (BootDesc)\r | |
351 | );\r | |
352 | Ptr += StrSize (BootDesc);\r | |
353 | \r | |
354 | CopyMem (\r | |
355 | Ptr,\r | |
356 | CurrentBbsDevPath,\r | |
357 | CurrentBbsDevPathSize\r | |
358 | );\r | |
359 | Ptr += CurrentBbsDevPathSize;\r | |
360 | \r | |
361 | CopyMem (\r | |
362 | Ptr,\r | |
363 | CurrentBbsEntry,\r | |
364 | sizeof (BBS_TABLE)\r | |
365 | );\r | |
366 | \r | |
367 | Ptr += sizeof (BBS_TABLE);\r | |
368 | *((UINT16 *) Ptr) = (UINT16) Index;\r | |
369 | \r | |
370 | Status = gRT->SetVariable (\r | |
371 | BootString,\r | |
372 | &gEfiGlobalVariableGuid,\r | |
373 | VAR_FLAG,\r | |
374 | BufferSize,\r | |
375 | Buffer\r | |
376 | );\r | |
377 | \r | |
378 | SafeFreePool (Buffer);\r | |
379 | Buffer = NULL;\r | |
380 | \r | |
381 | NewBootOrderList = EfiAllocateZeroPool (*BootOrderListSize + sizeof (UINT16));\r | |
382 | if (NULL == NewBootOrderList) {\r | |
383 | FreePool (NewBbsDevPathNode);\r | |
384 | FreePool (CurrentBbsDevPath);\r | |
385 | return EFI_OUT_OF_RESOURCES;\r | |
386 | }\r | |
387 | \r | |
388 | if (NULL != *BootOrderList) {\r | |
389 | CopyMem (NewBootOrderList, *BootOrderList, *BootOrderListSize);\r | |
390 | }\r | |
391 | \r | |
392 | SafeFreePool (*BootOrderList);\r | |
393 | \r | |
394 | BootOrderLastIndex = (UINTN) (*BootOrderListSize / sizeof (UINT16));\r | |
395 | NewBootOrderList[BootOrderLastIndex] = CurrentBootOptionNo;\r | |
396 | *BootOrderListSize += sizeof (UINT16);\r | |
397 | *BootOrderList = NewBootOrderList;\r | |
398 | \r | |
399 | FreePool (NewBbsDevPathNode);\r | |
400 | FreePool (CurrentBbsDevPath);\r | |
401 | return Status;\r | |
402 | }\r | |
403 | \r | |
404 | BOOLEAN\r | |
405 | BdsIsLegacyBootOption (\r | |
406 | IN UINT8 *BootOptionVar,\r | |
407 | OUT BBS_TABLE **BbsEntry,\r | |
408 | OUT UINT16 *BbsIndex\r | |
409 | )\r | |
410 | {\r | |
411 | UINT8 *Ptr;\r | |
412 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
413 | BOOLEAN Ret;\r | |
414 | UINT16 DevPathLen;\r | |
415 | \r | |
416 | Ptr = BootOptionVar;\r | |
417 | Ptr += sizeof (UINT32);\r | |
418 | DevPathLen = *(UINT16 *) Ptr;\r | |
419 | Ptr += sizeof (UINT16);\r | |
420 | Ptr += StrSize ((UINT16 *) Ptr);\r | |
421 | DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;\r | |
422 | if ((BBS_DEVICE_PATH == DevicePath->Type) && (BBS_BBS_DP == DevicePath->SubType)) {\r | |
423 | Ptr += DevPathLen;\r | |
424 | *BbsEntry = (BBS_TABLE *) Ptr;\r | |
425 | Ptr += sizeof (BBS_TABLE);\r | |
426 | *BbsIndex = *(UINT16 *) Ptr;\r | |
427 | Ret = TRUE;\r | |
428 | } else {\r | |
429 | *BbsEntry = NULL;\r | |
430 | Ret = FALSE;\r | |
431 | }\r | |
432 | \r | |
433 | return Ret;\r | |
434 | }\r | |
435 | \r | |
436 | EFI_STATUS\r | |
437 | BdsDeleteBootOption (\r | |
438 | IN UINTN OptionNumber,\r | |
439 | IN OUT UINT16 *BootOrder,\r | |
440 | IN OUT UINTN *BootOrderSize\r | |
441 | )\r | |
442 | {\r | |
443 | UINT16 BootOption[100];\r | |
444 | UINTN Index;\r | |
445 | EFI_STATUS Status;\r | |
446 | UINTN Index2Del;\r | |
447 | \r | |
448 | Status = EFI_SUCCESS;\r | |
449 | Index2Del = 0;\r | |
450 | \r | |
451 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", OptionNumber);\r | |
452 | Status = EfiLibDeleteVariable (BootOption, &gEfiGlobalVariableGuid);\r | |
453 | //\r | |
454 | // adjust boot order array\r | |
455 | //\r | |
456 | for (Index = 0; Index < *BootOrderSize / sizeof (UINT16); Index++) {\r | |
457 | if (BootOrder[Index] == OptionNumber) {\r | |
458 | Index2Del = Index;\r | |
459 | break;\r | |
460 | }\r | |
461 | }\r | |
462 | \r | |
463 | if (Index != *BootOrderSize / sizeof (UINT16)) {\r | |
464 | for (Index = 0; Index < *BootOrderSize / sizeof (UINT16) - 1; Index++) {\r | |
465 | if (Index >= Index2Del) {\r | |
466 | BootOrder[Index] = BootOrder[Index + 1];\r | |
467 | }\r | |
468 | }\r | |
469 | \r | |
470 | *BootOrderSize -= sizeof (UINT16);\r | |
471 | }\r | |
472 | \r | |
473 | return Status;\r | |
474 | \r | |
475 | }\r | |
476 | \r | |
477 | EFI_STATUS\r | |
478 | BdsDeleteAllInvalidLegacyBootOptions (\r | |
479 | VOID\r | |
480 | )\r | |
481 | /*++\r | |
482 | \r | |
483 | Routine Description:\r | |
484 | \r | |
485 | Delete all the invalid legacy boot options.\r | |
486 | \r | |
487 | Arguments:\r | |
488 | \r | |
489 | None.\r | |
490 | \r | |
491 | Returns:\r | |
492 | \r | |
493 | EFI_SUCCESS - All invalide legacy boot options are deleted.\r | |
494 | EFI_OUT_OF_RESOURCES - Fail to allocate necessary memory.\r | |
495 | EFI_NOT_FOUND - Fail to retrive variable of boot order.\r | |
496 | Other - Error occurs while setting variable or locating\r | |
497 | protocol.\r | |
498 | \r | |
499 | --*/\r | |
500 | {\r | |
501 | UINT16 *BootOrder;\r | |
502 | UINT8 *BootOptionVar;\r | |
503 | UINTN BootOrderSize;\r | |
504 | UINTN BootOptionSize;\r | |
505 | EFI_STATUS Status;\r | |
506 | UINT16 HddCount;\r | |
507 | UINT16 BbsCount;\r | |
508 | HDD_INFO *LocalHddInfo;\r | |
509 | BBS_TABLE *LocalBbsTable;\r | |
510 | BBS_TABLE *BbsEntry;\r | |
511 | UINT16 BbsIndex;\r | |
512 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
513 | UINTN Index;\r | |
514 | UINT16 BootOption[10];\r | |
515 | UINT16 BootDesc[100];\r | |
516 | BOOLEAN DescStringMatch;\r | |
517 | \r | |
518 | Status = EFI_SUCCESS;\r | |
519 | BootOrder = NULL;\r | |
520 | BootOrderSize = 0;\r | |
521 | HddCount = 0;\r | |
522 | BbsCount = 0;\r | |
523 | LocalHddInfo = NULL;\r | |
524 | LocalBbsTable = NULL;\r | |
525 | BbsEntry = NULL;\r | |
526 | \r | |
527 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, (VOID **) &LegacyBios);\r | |
528 | if (EFI_ERROR (Status)) {\r | |
529 | return Status;\r | |
530 | }\r | |
531 | \r | |
532 | LegacyBios->GetBbsInfo (\r | |
533 | LegacyBios,\r | |
534 | &HddCount,\r | |
535 | &LocalHddInfo,\r | |
536 | &BbsCount,\r | |
537 | &LocalBbsTable\r | |
538 | );\r | |
539 | \r | |
540 | BootOrder = BdsLibGetVariableAndSize (\r | |
541 | L"BootOrder",\r | |
542 | &gEfiGlobalVariableGuid,\r | |
543 | &BootOrderSize\r | |
544 | );\r | |
545 | if (NULL == BootOrder) {\r | |
546 | return EFI_NOT_FOUND;\r | |
547 | }\r | |
548 | \r | |
549 | Index = 0;\r | |
550 | while (Index < BootOrderSize / sizeof (UINT16)) {\r | |
551 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r | |
552 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
553 | BootOption,\r | |
554 | &gEfiGlobalVariableGuid,\r | |
555 | &BootOptionSize\r | |
556 | );\r | |
557 | if (NULL == BootOptionVar) {\r | |
558 | SafeFreePool (BootOrder);\r | |
559 | return EFI_OUT_OF_RESOURCES;\r | |
560 | }\r | |
561 | \r | |
562 | if (!BdsIsLegacyBootOption (BootOptionVar, &BbsEntry, &BbsIndex)) {\r | |
563 | SafeFreePool (BootOptionVar);\r | |
564 | Index++;\r | |
565 | continue;\r | |
566 | }\r | |
567 | \r | |
568 | //\r | |
569 | // Check if BBS Description String is changed\r | |
570 | //\r | |
571 | DescStringMatch = FALSE;\r | |
572 | \r | |
573 | BdsBuildLegacyDevNameString (\r | |
574 | &LocalBbsTable[BbsIndex],\r | |
575 | BbsIndex,\r | |
576 | sizeof(BootDesc),\r | |
577 | BootDesc\r | |
578 | );\r | |
579 | \r | |
580 | if (StrCmp (BootDesc, (UINT16*)(BootOptionVar + sizeof (UINT32) + sizeof (UINT16))) == 0) {\r | |
581 | DescStringMatch = TRUE;\r | |
582 | }\r | |
583 | \r | |
584 | if (!((LocalBbsTable[BbsIndex].BootPriority == BBS_IGNORE_ENTRY) ||\r | |
585 | (LocalBbsTable[BbsIndex].BootPriority == BBS_DO_NOT_BOOT_FROM)) &&\r | |
586 | (LocalBbsTable[BbsIndex].DeviceType == BbsEntry->DeviceType) &&\r | |
587 | DescStringMatch) {\r | |
588 | Index++;\r | |
589 | continue;\r | |
590 | }\r | |
591 | \r | |
592 | SafeFreePool (BootOptionVar);\r | |
593 | //\r | |
594 | // should delete\r | |
595 | //\r | |
596 | BdsDeleteBootOption (\r | |
597 | BootOrder[Index],\r | |
598 | BootOrder,\r | |
599 | &BootOrderSize\r | |
600 | );\r | |
601 | }\r | |
602 | \r | |
603 | if (BootOrderSize) {\r | |
604 | Status = gRT->SetVariable (\r | |
605 | L"BootOrder",\r | |
606 | &gEfiGlobalVariableGuid,\r | |
607 | VAR_FLAG,\r | |
608 | BootOrderSize,\r | |
609 | BootOrder\r | |
610 | );\r | |
611 | } else {\r | |
612 | EfiLibDeleteVariable (L"BootOrder", &gEfiGlobalVariableGuid);\r | |
613 | }\r | |
614 | \r | |
615 | SafeFreePool (BootOrder);\r | |
616 | \r | |
617 | return Status;\r | |
618 | }\r | |
619 | \r | |
620 | BOOLEAN\r | |
621 | BdsFindLegacyBootOptionByDevType (\r | |
622 | IN UINT16 *BootOrder,\r | |
623 | IN UINTN BootOptionNum,\r | |
624 | IN UINT16 DevType,\r | |
625 | OUT UINT32 *Attribute,\r | |
626 | OUT UINT16 *BbsIndex,\r | |
627 | OUT UINTN *OptionNumber\r | |
628 | )\r | |
629 | {\r | |
630 | UINTN Index;\r | |
631 | UINTN BootOrderIndex;\r | |
632 | UINT16 BootOption[100];\r | |
633 | UINTN BootOptionSize;\r | |
634 | UINT8 *BootOptionVar;\r | |
635 | BBS_TABLE *BbsEntry;\r | |
636 | BOOLEAN Found;\r | |
637 | \r | |
638 | BbsEntry = NULL;\r | |
639 | Found = FALSE;\r | |
640 | \r | |
641 | if (NULL == BootOrder) {\r | |
642 | return Found;\r | |
643 | }\r | |
644 | \r | |
645 | for (BootOrderIndex = 0; BootOrderIndex < BootOptionNum; BootOrderIndex++) {\r | |
646 | Index = (UINTN) BootOrder[BootOrderIndex];\r | |
647 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", Index);\r | |
648 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
649 | BootOption,\r | |
650 | &gEfiGlobalVariableGuid,\r | |
651 | &BootOptionSize\r | |
652 | );\r | |
653 | if (NULL == BootOptionVar) {\r | |
654 | continue;\r | |
655 | }\r | |
656 | \r | |
657 | if (!BdsIsLegacyBootOption (BootOptionVar, &BbsEntry, BbsIndex)) {\r | |
658 | SafeFreePool (BootOptionVar);\r | |
659 | continue;\r | |
660 | }\r | |
661 | \r | |
662 | if (BbsEntry->DeviceType != DevType) {\r | |
663 | SafeFreePool (BootOptionVar);\r | |
664 | continue;\r | |
665 | }\r | |
666 | \r | |
667 | *Attribute = *(UINT32 *) BootOptionVar;\r | |
668 | *OptionNumber = Index;\r | |
669 | Found = TRUE;\r | |
670 | SafeFreePool (BootOptionVar);\r | |
671 | break;\r | |
672 | }\r | |
673 | \r | |
674 | return Found;\r | |
675 | }\r | |
676 | \r | |
677 | EFI_STATUS\r | |
678 | BdsCreateOneLegacyBootOption (\r | |
679 | IN BBS_TABLE *BbsItem,\r | |
680 | IN UINTN Index,\r | |
681 | IN OUT UINT16 **BootOrderList,\r | |
682 | IN OUT UINTN *BootOrderListSize\r | |
683 | )\r | |
684 | {\r | |
685 | BBS_BBS_DEVICE_PATH BbsDevPathNode;\r | |
686 | EFI_STATUS Status;\r | |
687 | EFI_DEVICE_PATH_PROTOCOL *DevPath;\r | |
688 | \r | |
689 | DevPath = NULL;\r | |
690 | \r | |
691 | BbsDevPathNode.Header.Type = BBS_DEVICE_PATH;\r | |
692 | BbsDevPathNode.Header.SubType = BBS_BBS_DP;\r | |
693 | SetDevicePathNodeLength (&BbsDevPathNode.Header, sizeof (BBS_BBS_DEVICE_PATH));\r | |
694 | BbsDevPathNode.DeviceType = BbsItem->DeviceType;\r | |
695 | CopyMem (&BbsDevPathNode.StatusFlag, &BbsItem->StatusFlags, sizeof (UINT16));\r | |
696 | \r | |
697 | DevPath = AppendDevicePathNode (\r | |
698 | EndDevicePath,\r | |
699 | (EFI_DEVICE_PATH_PROTOCOL *) &BbsDevPathNode\r | |
700 | );\r | |
701 | if (NULL == DevPath) {\r | |
702 | return EFI_OUT_OF_RESOURCES;\r | |
703 | }\r | |
704 | \r | |
705 | Status = BdsCreateLegacyBootOption (\r | |
706 | BbsItem,\r | |
707 | DevPath,\r | |
708 | Index,\r | |
709 | BootOrderList,\r | |
710 | BootOrderListSize\r | |
711 | );\r | |
712 | BbsItem->BootPriority = 0x00;\r | |
713 | \r | |
714 | FreePool (DevPath);\r | |
715 | \r | |
716 | return Status;\r | |
717 | }\r | |
718 | \r | |
719 | EFI_STATUS\r | |
720 | BdsAddNonExistingLegacyBootOptions (\r | |
721 | VOID\r | |
722 | )\r | |
723 | /*++\r | |
724 | \r | |
725 | Routine Description:\r | |
726 | \r | |
727 | Add the legacy boot options from BBS table if they do not exist.\r | |
728 | \r | |
729 | Arguments:\r | |
730 | \r | |
731 | None.\r | |
732 | \r | |
733 | Returns:\r | |
734 | \r | |
735 | EFI_SUCCESS - The boot options are added successfully or they are already in boot options.\r | |
736 | others - An error occurred when creating legacy boot options.\r | |
737 | \r | |
738 | --*/\r | |
739 | {\r | |
740 | UINT16 *BootOrder;\r | |
741 | UINTN BootOrderSize;\r | |
742 | EFI_STATUS Status;\r | |
743 | UINT16 HddCount;\r | |
744 | UINT16 BbsCount;\r | |
745 | HDD_INFO *LocalHddInfo;\r | |
746 | BBS_TABLE *LocalBbsTable;\r | |
747 | UINT16 BbsIndex;\r | |
748 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
749 | UINTN Index;\r | |
750 | UINT32 Attribute;\r | |
751 | UINTN OptionNumber;\r | |
752 | BOOLEAN Ret;\r | |
753 | \r | |
754 | BootOrder = NULL;\r | |
755 | HddCount = 0;\r | |
756 | BbsCount = 0;\r | |
757 | LocalHddInfo = NULL;\r | |
758 | LocalBbsTable = NULL;\r | |
759 | \r | |
760 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, (VOID **) &LegacyBios);\r | |
761 | if (EFI_ERROR (Status)) {\r | |
762 | return Status;\r | |
763 | }\r | |
764 | \r | |
765 | LegacyBios->GetBbsInfo (\r | |
766 | LegacyBios,\r | |
767 | &HddCount,\r | |
768 | &LocalHddInfo,\r | |
769 | &BbsCount,\r | |
770 | &LocalBbsTable\r | |
771 | );\r | |
772 | \r | |
773 | BootOrder = BdsLibGetVariableAndSize (\r | |
774 | L"BootOrder",\r | |
775 | &gEfiGlobalVariableGuid,\r | |
776 | &BootOrderSize\r | |
777 | );\r | |
778 | if (NULL == BootOrder) {\r | |
779 | BootOrderSize = 0;\r | |
780 | }\r | |
781 | \r | |
782 | for (Index = 0; Index < BbsCount; Index++) {\r | |
783 | if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||\r | |
784 | (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM)\r | |
785 | ) {\r | |
786 | continue;\r | |
787 | }\r | |
788 | \r | |
789 | Ret = BdsFindLegacyBootOptionByDevType (\r | |
790 | BootOrder,\r | |
791 | BootOrderSize / sizeof (UINT16),\r | |
792 | LocalBbsTable[Index].DeviceType,\r | |
793 | &Attribute,\r | |
794 | &BbsIndex,\r | |
795 | &OptionNumber\r | |
796 | );\r | |
797 | if (Ret) {\r | |
798 | continue;\r | |
799 | }\r | |
800 | \r | |
801 | //\r | |
802 | // Not found such type of legacy device in boot options or we found but it's disabled\r | |
803 | // so we have to create one and put it to the tail of boot order list\r | |
804 | //\r | |
805 | Status = BdsCreateOneLegacyBootOption (\r | |
806 | &LocalBbsTable[Index],\r | |
807 | Index,\r | |
808 | &BootOrder,\r | |
809 | &BootOrderSize\r | |
810 | );\r | |
811 | if (EFI_ERROR (Status)) {\r | |
812 | break;\r | |
813 | }\r | |
814 | }\r | |
815 | \r | |
816 | if (BootOrderSize > 0) {\r | |
817 | Status = gRT->SetVariable (\r | |
818 | L"BootOrder",\r | |
819 | &gEfiGlobalVariableGuid,\r | |
820 | VAR_FLAG,\r | |
821 | BootOrderSize,\r | |
822 | BootOrder\r | |
823 | );\r | |
824 | } else {\r | |
825 | EfiLibDeleteVariable (L"BootOrder", &gEfiGlobalVariableGuid);\r | |
826 | }\r | |
827 | \r | |
828 | if (BootOrder != NULL) {\r | |
829 | SafeFreePool (BootOrder);\r | |
830 | }\r | |
831 | \r | |
832 | return Status;\r | |
833 | }\r | |
834 | \r | |
835 | UINT16 *\r | |
836 | BdsFillDevOrderBuf (\r | |
837 | IN BBS_TABLE *BbsTable,\r | |
838 | IN BBS_TYPE BbsType,\r | |
839 | IN UINTN BbsCount,\r | |
840 | IN UINT16 *Buf\r | |
841 | )\r | |
842 | {\r | |
843 | UINTN Index;\r | |
844 | \r | |
845 | for (Index = 0; Index < BbsCount; Index++) {\r | |
846 | if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {\r | |
847 | continue;\r | |
848 | }\r | |
849 | \r | |
850 | if (BbsTable[Index].DeviceType != BbsType) {\r | |
851 | continue;\r | |
852 | }\r | |
853 | \r | |
854 | *Buf = (UINT16) (Index & 0xFF);\r | |
855 | Buf++;\r | |
856 | }\r | |
857 | \r | |
858 | return Buf;\r | |
859 | }\r | |
860 | \r | |
861 | EFI_STATUS\r | |
862 | BdsCreateDevOrder (\r | |
863 | IN BBS_TABLE *BbsTable,\r | |
864 | IN UINT16 BbsCount\r | |
865 | )\r | |
866 | {\r | |
867 | UINTN Index;\r | |
868 | UINTN FDCount;\r | |
869 | UINTN HDCount;\r | |
870 | UINTN CDCount;\r | |
871 | UINTN NETCount;\r | |
872 | UINTN BEVCount;\r | |
873 | UINTN TotalSize;\r | |
874 | UINTN HeaderSize;\r | |
875 | UINT8 *DevOrder;\r | |
876 | UINT8 *Ptr;\r | |
877 | EFI_STATUS Status;\r | |
878 | \r | |
879 | FDCount = 0;\r | |
880 | HDCount = 0;\r | |
881 | CDCount = 0;\r | |
882 | NETCount = 0;\r | |
883 | BEVCount = 0;\r | |
884 | TotalSize = 0;\r | |
885 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r | |
886 | DevOrder = NULL;\r | |
887 | Ptr = NULL;\r | |
888 | Status = EFI_SUCCESS;\r | |
889 | \r | |
890 | for (Index = 0; Index < BbsCount; Index++) {\r | |
891 | if (BbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) {\r | |
892 | continue;\r | |
893 | }\r | |
894 | \r | |
895 | switch (BbsTable[Index].DeviceType) {\r | |
896 | case BBS_FLOPPY:\r | |
897 | FDCount++;\r | |
898 | break;\r | |
899 | \r | |
900 | case BBS_HARDDISK:\r | |
901 | HDCount++;\r | |
902 | break;\r | |
903 | \r | |
904 | case BBS_CDROM:\r | |
905 | CDCount++;\r | |
906 | break;\r | |
907 | \r | |
908 | case BBS_EMBED_NETWORK:\r | |
909 | NETCount++;\r | |
910 | break;\r | |
911 | \r | |
912 | case BBS_BEV_DEVICE:\r | |
913 | BEVCount++;\r | |
914 | break;\r | |
915 | \r | |
916 | default:\r | |
917 | break;\r | |
918 | }\r | |
919 | }\r | |
920 | \r | |
921 | TotalSize += (HeaderSize + sizeof (UINT16) * FDCount);\r | |
922 | TotalSize += (HeaderSize + sizeof (UINT16) * HDCount);\r | |
923 | TotalSize += (HeaderSize + sizeof (UINT16) * CDCount);\r | |
924 | TotalSize += (HeaderSize + sizeof (UINT16) * NETCount);\r | |
925 | TotalSize += (HeaderSize + sizeof (UINT16) * BEVCount);\r | |
926 | \r | |
927 | DevOrder = EfiAllocateZeroPool (TotalSize);\r | |
928 | if (NULL == DevOrder) {\r | |
929 | return EFI_OUT_OF_RESOURCES;\r | |
930 | }\r | |
931 | \r | |
932 | Ptr = DevOrder;\r | |
933 | \r | |
934 | *((BBS_TYPE *) Ptr) = BBS_FLOPPY;\r | |
935 | Ptr += sizeof (BBS_TYPE);\r | |
936 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));\r | |
937 | Ptr += sizeof (UINT16);\r | |
938 | if (FDCount) {\r | |
939 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_FLOPPY, BbsCount, (UINT16 *) Ptr);\r | |
940 | }\r | |
941 | \r | |
942 | *((BBS_TYPE *) Ptr) = BBS_HARDDISK;\r | |
943 | Ptr += sizeof (BBS_TYPE);\r | |
944 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r | |
945 | Ptr += sizeof (UINT16);\r | |
946 | if (HDCount) {\r | |
947 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_HARDDISK, BbsCount, (UINT16 *) Ptr);\r | |
948 | }\r | |
949 | \r | |
950 | *((BBS_TYPE *) Ptr) = BBS_CDROM;\r | |
951 | Ptr += sizeof (BBS_TYPE);\r | |
952 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r | |
953 | Ptr += sizeof (UINT16);\r | |
954 | if (CDCount) {\r | |
955 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_CDROM, BbsCount, (UINT16 *) Ptr);\r | |
956 | }\r | |
957 | \r | |
958 | *((BBS_TYPE *) Ptr) = BBS_EMBED_NETWORK;\r | |
959 | Ptr += sizeof (BBS_TYPE);\r | |
960 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r | |
961 | Ptr += sizeof (UINT16);\r | |
962 | if (NETCount) {\r | |
963 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_EMBED_NETWORK, BbsCount, (UINT16 *) Ptr);\r | |
964 | }\r | |
965 | \r | |
966 | *((BBS_TYPE *) Ptr) = BBS_BEV_DEVICE;\r | |
967 | Ptr += sizeof (BBS_TYPE);\r | |
968 | *((UINT16 *) Ptr) = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r | |
969 | Ptr += sizeof (UINT16);\r | |
970 | if (BEVCount) {\r | |
971 | Ptr = (UINT8 *) BdsFillDevOrderBuf (BbsTable, BBS_BEV_DEVICE, BbsCount, (UINT16 *) Ptr);\r | |
972 | }\r | |
973 | \r | |
974 | Status = gRT->SetVariable (\r | |
975 | VarLegacyDevOrder,\r | |
976 | &EfiLegacyDevOrderGuid,\r | |
977 | VAR_FLAG,\r | |
978 | TotalSize,\r | |
979 | DevOrder\r | |
980 | );\r | |
981 | SafeFreePool (DevOrder);\r | |
982 | \r | |
983 | return Status;\r | |
984 | }\r | |
985 | \r | |
986 | EFI_STATUS\r | |
987 | BdsUpdateLegacyDevOrder (\r | |
988 | VOID\r | |
989 | )\r | |
990 | /*++\r | |
991 | Format of LegacyDevOrder variable:\r | |
992 | |-----------------------------------------------------------------------------------------------------------------\r | |
993 | | BBS_FLOPPY | Length | Index0 | Index1 | ... | BBS_HARDDISK | Length | Index0 | Index1 | ... | BBS_CDROM | Length | Index0 | ...\r | |
994 | |-----------------------------------------------------------------------------------------------------------------\r | |
995 | \r | |
996 | Length is a 16 bit integer, it indicates how many Indexes follows, including the size of itself.\r | |
997 | Index# is a 16 bit integer, the low byte of it stands for the index in BBS table\r | |
998 | the high byte of it only have two value 0 and 0xFF, 0xFF means this device has been\r | |
999 | disabled by user.\r | |
1000 | --*/\r | |
1001 | {\r | |
1002 | UINT8 *DevOrder;\r | |
1003 | UINT8 *NewDevOrder;\r | |
1004 | UINTN DevOrderSize;\r | |
1005 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1006 | EFI_STATUS Status;\r | |
1007 | UINT16 HddCount;\r | |
1008 | UINT16 BbsCount;\r | |
1009 | HDD_INFO *LocalHddInfo;\r | |
1010 | BBS_TABLE *LocalBbsTable;\r | |
1011 | UINTN Index;\r | |
1012 | UINTN Index2;\r | |
1013 | UINTN *Idx;\r | |
1014 | UINTN FDCount;\r | |
1015 | UINTN HDCount;\r | |
1016 | UINTN CDCount;\r | |
1017 | UINTN NETCount;\r | |
1018 | UINTN BEVCount;\r | |
1019 | UINTN TotalSize;\r | |
1020 | UINTN HeaderSize;\r | |
1021 | UINT8 *Ptr;\r | |
1022 | UINT8 *NewPtr;\r | |
1023 | UINT16 *NewFDPtr;\r | |
1024 | UINT16 *NewHDPtr;\r | |
1025 | UINT16 *NewCDPtr;\r | |
1026 | UINT16 *NewNETPtr;\r | |
1027 | UINT16 *NewBEVPtr;\r | |
1028 | UINT16 *NewDevPtr;\r | |
1029 | UINT16 Length;\r | |
1030 | UINT16 tmp;\r | |
1031 | UINTN FDIndex;\r | |
1032 | UINTN HDIndex;\r | |
1033 | UINTN CDIndex;\r | |
1034 | UINTN NETIndex;\r | |
1035 | UINTN BEVIndex;\r | |
1036 | \r | |
1037 | LocalHddInfo = NULL;\r | |
1038 | LocalBbsTable = NULL;\r | |
1039 | Idx = NULL;\r | |
1040 | FDCount = 0;\r | |
1041 | HDCount = 0;\r | |
1042 | CDCount = 0;\r | |
1043 | NETCount = 0;\r | |
1044 | BEVCount = 0;\r | |
1045 | TotalSize = 0;\r | |
1046 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r | |
1047 | FDIndex = 0;\r | |
1048 | HDIndex = 0;\r | |
1049 | CDIndex = 0;\r | |
1050 | NETIndex = 0;\r | |
1051 | BEVIndex = 0;\r | |
1052 | NewDevPtr = NULL;\r | |
1053 | \r | |
1054 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, (VOID **) &LegacyBios);\r | |
1055 | if (EFI_ERROR (Status)) {\r | |
1056 | return Status;\r | |
1057 | }\r | |
1058 | \r | |
1059 | LegacyBios->GetBbsInfo (\r | |
1060 | LegacyBios,\r | |
1061 | &HddCount,\r | |
1062 | &LocalHddInfo,\r | |
1063 | &BbsCount,\r | |
1064 | &LocalBbsTable\r | |
1065 | );\r | |
1066 | \r | |
1067 | DevOrder = (UINT8 *) BdsLibGetVariableAndSize (\r | |
1068 | VarLegacyDevOrder,\r | |
1069 | &EfiLegacyDevOrderGuid,\r | |
1070 | &DevOrderSize\r | |
1071 | );\r | |
1072 | if (NULL == DevOrder) {\r | |
1073 | return BdsCreateDevOrder (LocalBbsTable, BbsCount);\r | |
1074 | }\r | |
1075 | //\r | |
1076 | // First we figure out how many boot devices with same device type respectively\r | |
1077 | //\r | |
1078 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1079 | if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||\r | |
1080 | (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM)\r | |
1081 | ) {\r | |
1082 | continue;\r | |
1083 | }\r | |
1084 | \r | |
1085 | switch (LocalBbsTable[Index].DeviceType) {\r | |
1086 | case BBS_FLOPPY:\r | |
1087 | FDCount++;\r | |
1088 | break;\r | |
1089 | \r | |
1090 | case BBS_HARDDISK:\r | |
1091 | HDCount++;\r | |
1092 | break;\r | |
1093 | \r | |
1094 | case BBS_CDROM:\r | |
1095 | CDCount++;\r | |
1096 | break;\r | |
1097 | \r | |
1098 | case BBS_EMBED_NETWORK:\r | |
1099 | NETCount++;\r | |
1100 | break;\r | |
1101 | \r | |
1102 | case BBS_BEV_DEVICE:\r | |
1103 | BEVCount++;\r | |
1104 | break;\r | |
1105 | \r | |
1106 | default:\r | |
1107 | break;\r | |
1108 | }\r | |
1109 | }\r | |
1110 | \r | |
1111 | TotalSize += (HeaderSize + FDCount * sizeof (UINT16));\r | |
1112 | TotalSize += (HeaderSize + HDCount * sizeof (UINT16));\r | |
1113 | TotalSize += (HeaderSize + CDCount * sizeof (UINT16));\r | |
1114 | TotalSize += (HeaderSize + NETCount * sizeof (UINT16));\r | |
1115 | TotalSize += (HeaderSize + BEVCount * sizeof (UINT16));\r | |
1116 | \r | |
1117 | NewDevOrder = EfiAllocateZeroPool (TotalSize);\r | |
1118 | if (NULL == NewDevOrder) {\r | |
1119 | return EFI_OUT_OF_RESOURCES;\r | |
1120 | }\r | |
1121 | \r | |
1122 | NewFDPtr = (UINT16 *) (NewDevOrder + HeaderSize);\r | |
1123 | NewHDPtr = (UINT16 *) ((UINT8 *) NewFDPtr + FDCount * sizeof (UINT16) + HeaderSize);\r | |
1124 | NewCDPtr = (UINT16 *) ((UINT8 *) NewHDPtr + HDCount * sizeof (UINT16) + HeaderSize);\r | |
1125 | NewNETPtr = (UINT16 *) ((UINT8 *) NewCDPtr + CDCount * sizeof (UINT16) + HeaderSize);\r | |
1126 | NewBEVPtr = (UINT16 *) ((UINT8 *) NewNETPtr + NETCount * sizeof (UINT16) + HeaderSize);\r | |
1127 | \r | |
1128 | //\r | |
1129 | // copy FD\r | |
1130 | //\r | |
1131 | Ptr = DevOrder;\r | |
1132 | NewPtr = NewDevOrder;\r | |
1133 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r | |
1134 | Ptr += sizeof (BBS_TYPE);\r | |
1135 | NewPtr += sizeof (BBS_TYPE);\r | |
1136 | Length = *((UINT16 *) Ptr);\r | |
1137 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));\r | |
1138 | Ptr += sizeof (UINT16);\r | |
1139 | \r | |
1140 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r | |
1141 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r | |
1142 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r | |
1143 | LocalBbsTable[*Ptr].DeviceType != BBS_FLOPPY\r | |
1144 | ) {\r | |
1145 | Ptr += sizeof (UINT16);\r | |
1146 | continue;\r | |
1147 | }\r | |
1148 | \r | |
1149 | NewFDPtr[FDIndex] = *(UINT16 *) Ptr;\r | |
1150 | FDIndex++;\r | |
1151 | Ptr += sizeof (UINT16);\r | |
1152 | }\r | |
1153 | //\r | |
1154 | // copy HD\r | |
1155 | //\r | |
1156 | NewPtr = (UINT8 *) NewHDPtr - HeaderSize;\r | |
1157 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r | |
1158 | Ptr += sizeof (BBS_TYPE);\r | |
1159 | NewPtr += sizeof (BBS_TYPE);\r | |
1160 | Length = *((UINT16 *) Ptr);\r | |
1161 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r | |
1162 | Ptr += sizeof (UINT16);\r | |
1163 | \r | |
1164 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r | |
1165 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r | |
1166 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r | |
1167 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r | |
1168 | LocalBbsTable[*Ptr].DeviceType != BBS_HARDDISK\r | |
1169 | ) {\r | |
1170 | Ptr += sizeof (UINT16);\r | |
1171 | continue;\r | |
1172 | }\r | |
1173 | \r | |
1174 | NewHDPtr[HDIndex] = *(UINT16 *) Ptr;\r | |
1175 | HDIndex++;\r | |
1176 | Ptr += sizeof (UINT16);\r | |
1177 | }\r | |
1178 | //\r | |
1179 | // copy CD\r | |
1180 | //\r | |
1181 | NewPtr = (UINT8 *) NewCDPtr - HeaderSize;\r | |
1182 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r | |
1183 | Ptr += sizeof (BBS_TYPE);\r | |
1184 | NewPtr += sizeof (BBS_TYPE);\r | |
1185 | Length = *((UINT16 *) Ptr);\r | |
1186 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r | |
1187 | Ptr += sizeof (UINT16);\r | |
1188 | \r | |
1189 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r | |
1190 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r | |
1191 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r | |
1192 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r | |
1193 | LocalBbsTable[*Ptr].DeviceType != BBS_CDROM\r | |
1194 | ) {\r | |
1195 | Ptr += sizeof (UINT16);\r | |
1196 | continue;\r | |
1197 | }\r | |
1198 | \r | |
1199 | NewCDPtr[CDIndex] = *(UINT16 *) Ptr;\r | |
1200 | CDIndex++;\r | |
1201 | Ptr += sizeof (UINT16);\r | |
1202 | }\r | |
1203 | //\r | |
1204 | // copy NET\r | |
1205 | //\r | |
1206 | NewPtr = (UINT8 *) NewNETPtr - HeaderSize;\r | |
1207 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r | |
1208 | Ptr += sizeof (BBS_TYPE);\r | |
1209 | NewPtr += sizeof (BBS_TYPE);\r | |
1210 | Length = *((UINT16 *) Ptr);\r | |
1211 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r | |
1212 | Ptr += sizeof (UINT16);\r | |
1213 | \r | |
1214 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r | |
1215 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r | |
1216 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r | |
1217 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r | |
1218 | LocalBbsTable[*Ptr].DeviceType != BBS_EMBED_NETWORK\r | |
1219 | ) {\r | |
1220 | Ptr += sizeof (UINT16);\r | |
1221 | continue;\r | |
1222 | }\r | |
1223 | \r | |
1224 | NewNETPtr[NETIndex] = *(UINT16 *) Ptr;\r | |
1225 | NETIndex++;\r | |
1226 | Ptr += sizeof (UINT16);\r | |
1227 | }\r | |
1228 | //\r | |
1229 | // copy BEV\r | |
1230 | //\r | |
1231 | NewPtr = (UINT8 *) NewBEVPtr - HeaderSize;\r | |
1232 | *((BBS_TYPE *) NewPtr) = *((BBS_TYPE *) Ptr);\r | |
1233 | Ptr += sizeof (BBS_TYPE);\r | |
1234 | NewPtr += sizeof (BBS_TYPE);\r | |
1235 | Length = *((UINT16 *) Ptr);\r | |
1236 | *((UINT16 *) NewPtr) = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r | |
1237 | Ptr += sizeof (UINT16);\r | |
1238 | \r | |
1239 | for (Index = 0; Index < Length / sizeof (UINT16) - 1; Index++) {\r | |
1240 | if (LocalBbsTable[*Ptr].BootPriority == BBS_IGNORE_ENTRY ||\r | |
1241 | LocalBbsTable[*Ptr].BootPriority == BBS_DO_NOT_BOOT_FROM ||\r | |
1242 | LocalBbsTable[*Ptr].BootPriority == BBS_LOWEST_PRIORITY ||\r | |
1243 | LocalBbsTable[*Ptr].DeviceType != BBS_BEV_DEVICE\r | |
1244 | ) {\r | |
1245 | Ptr += sizeof (UINT16);\r | |
1246 | continue;\r | |
1247 | }\r | |
1248 | \r | |
1249 | NewBEVPtr[BEVIndex] = *(UINT16 *) Ptr;\r | |
1250 | BEVIndex++;\r | |
1251 | Ptr += sizeof (UINT16);\r | |
1252 | }\r | |
1253 | \r | |
1254 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1255 | if ((LocalBbsTable[Index].BootPriority == BBS_IGNORE_ENTRY) ||\r | |
1256 | (LocalBbsTable[Index].BootPriority == BBS_DO_NOT_BOOT_FROM)\r | |
1257 | ) {\r | |
1258 | continue;\r | |
1259 | }\r | |
1260 | \r | |
1261 | switch (LocalBbsTable[Index].DeviceType) {\r | |
1262 | case BBS_FLOPPY:\r | |
1263 | Idx = &FDIndex;\r | |
1264 | NewDevPtr = NewFDPtr;\r | |
1265 | break;\r | |
1266 | \r | |
1267 | case BBS_HARDDISK:\r | |
1268 | Idx = &HDIndex;\r | |
1269 | NewDevPtr = NewHDPtr;\r | |
1270 | break;\r | |
1271 | \r | |
1272 | case BBS_CDROM:\r | |
1273 | Idx = &CDIndex;\r | |
1274 | NewDevPtr = NewCDPtr;\r | |
1275 | break;\r | |
1276 | \r | |
1277 | case BBS_EMBED_NETWORK:\r | |
1278 | Idx = &NETIndex;\r | |
1279 | NewDevPtr = NewNETPtr;\r | |
1280 | break;\r | |
1281 | \r | |
1282 | case BBS_BEV_DEVICE:\r | |
1283 | Idx = &BEVIndex;\r | |
1284 | NewDevPtr = NewBEVPtr;\r | |
1285 | break;\r | |
1286 | \r | |
1287 | default:\r | |
1288 | Idx = NULL;\r | |
1289 | break;\r | |
1290 | }\r | |
1291 | //\r | |
1292 | // at this point we have copied those valid indexes to new buffer\r | |
1293 | // and we should check if there is any new appeared boot device\r | |
1294 | //\r | |
1295 | if (Idx) {\r | |
1296 | for (Index2 = 0; Index2 < *Idx; Index2++) {\r | |
1297 | if ((NewDevPtr[Index2] & 0xFF) == (UINT16) Index) {\r | |
1298 | break;\r | |
1299 | }\r | |
1300 | }\r | |
1301 | \r | |
1302 | if (Index2 == *Idx) {\r | |
1303 | //\r | |
1304 | // Index2 == *Idx means we didn't find Index\r | |
1305 | // so Index is a new appeared device's index in BBS table\r | |
1306 | // save it.\r | |
1307 | //\r | |
1308 | NewDevPtr[*Idx] = (UINT16) (Index & 0xFF);\r | |
1309 | (*Idx)++;\r | |
1310 | }\r | |
1311 | }\r | |
1312 | }\r | |
1313 | \r | |
1314 | if (FDCount) {\r | |
1315 | //\r | |
1316 | // Just to make sure that disabled indexes are all at the end of the array\r | |
1317 | //\r | |
1318 | for (Index = 0; Index < FDIndex - 1; Index++) {\r | |
1319 | if (0xFF00 != (NewFDPtr[Index] & 0xFF00)) {\r | |
1320 | continue;\r | |
1321 | }\r | |
1322 | \r | |
1323 | for (Index2 = Index + 1; Index2 < FDIndex; Index2++) {\r | |
1324 | if (0 == (NewFDPtr[Index2] & 0xFF00)) {\r | |
1325 | tmp = NewFDPtr[Index];\r | |
1326 | NewFDPtr[Index] = NewFDPtr[Index2];\r | |
1327 | NewFDPtr[Index2] = tmp;\r | |
1328 | break;\r | |
1329 | }\r | |
1330 | }\r | |
1331 | }\r | |
1332 | }\r | |
1333 | \r | |
1334 | if (HDCount) {\r | |
1335 | //\r | |
1336 | // Just to make sure that disabled indexes are all at the end of the array\r | |
1337 | //\r | |
1338 | for (Index = 0; Index < HDIndex - 1; Index++) {\r | |
1339 | if (0xFF00 != (NewHDPtr[Index] & 0xFF00)) {\r | |
1340 | continue;\r | |
1341 | }\r | |
1342 | \r | |
1343 | for (Index2 = Index + 1; Index2 < HDIndex; Index2++) {\r | |
1344 | if (0 == (NewHDPtr[Index2] & 0xFF00)) {\r | |
1345 | tmp = NewHDPtr[Index];\r | |
1346 | NewHDPtr[Index] = NewHDPtr[Index2];\r | |
1347 | NewHDPtr[Index2] = tmp;\r | |
1348 | break;\r | |
1349 | }\r | |
1350 | }\r | |
1351 | }\r | |
1352 | }\r | |
1353 | \r | |
1354 | if (CDCount) {\r | |
1355 | //\r | |
1356 | // Just to make sure that disabled indexes are all at the end of the array\r | |
1357 | //\r | |
1358 | for (Index = 0; Index < CDIndex - 1; Index++) {\r | |
1359 | if (0xFF00 != (NewCDPtr[Index] & 0xFF00)) {\r | |
1360 | continue;\r | |
1361 | }\r | |
1362 | \r | |
1363 | for (Index2 = Index + 1; Index2 < CDIndex; Index2++) {\r | |
1364 | if (0 == (NewCDPtr[Index2] & 0xFF00)) {\r | |
1365 | tmp = NewCDPtr[Index];\r | |
1366 | NewCDPtr[Index] = NewCDPtr[Index2];\r | |
1367 | NewCDPtr[Index2] = tmp;\r | |
1368 | break;\r | |
1369 | }\r | |
1370 | }\r | |
1371 | }\r | |
1372 | }\r | |
1373 | \r | |
1374 | if (NETCount) {\r | |
1375 | //\r | |
1376 | // Just to make sure that disabled indexes are all at the end of the array\r | |
1377 | //\r | |
1378 | for (Index = 0; Index < NETIndex - 1; Index++) {\r | |
1379 | if (0xFF00 != (NewNETPtr[Index] & 0xFF00)) {\r | |
1380 | continue;\r | |
1381 | }\r | |
1382 | \r | |
1383 | for (Index2 = Index + 1; Index2 < NETIndex; Index2++) {\r | |
1384 | if (0 == (NewNETPtr[Index2] & 0xFF00)) {\r | |
1385 | tmp = NewNETPtr[Index];\r | |
1386 | NewNETPtr[Index] = NewNETPtr[Index2];\r | |
1387 | NewNETPtr[Index2] = tmp;\r | |
1388 | break;\r | |
1389 | }\r | |
1390 | }\r | |
1391 | }\r | |
1392 | }\r | |
1393 | \r | |
1394 | if (BEVCount) {\r | |
1395 | //\r | |
1396 | // Just to make sure that disabled indexes are all at the end of the array\r | |
1397 | //\r | |
1398 | for (Index = 0; Index < BEVIndex - 1; Index++) {\r | |
1399 | if (0xFF00 != (NewBEVPtr[Index] & 0xFF00)) {\r | |
1400 | continue;\r | |
1401 | }\r | |
1402 | \r | |
1403 | for (Index2 = Index + 1; Index2 < BEVIndex; Index2++) {\r | |
1404 | if (0 == (NewBEVPtr[Index2] & 0xFF00)) {\r | |
1405 | tmp = NewBEVPtr[Index];\r | |
1406 | NewBEVPtr[Index] = NewBEVPtr[Index2];\r | |
1407 | NewBEVPtr[Index2] = tmp;\r | |
1408 | break;\r | |
1409 | }\r | |
1410 | }\r | |
1411 | }\r | |
1412 | }\r | |
1413 | \r | |
1414 | SafeFreePool (DevOrder);\r | |
1415 | \r | |
1416 | Status = gRT->SetVariable (\r | |
1417 | VarLegacyDevOrder,\r | |
1418 | &EfiLegacyDevOrderGuid,\r | |
1419 | VAR_FLAG,\r | |
1420 | TotalSize,\r | |
1421 | NewDevOrder\r | |
1422 | );\r | |
1423 | SafeFreePool (NewDevOrder);\r | |
1424 | \r | |
1425 | return Status;\r | |
1426 | }\r | |
1427 | \r | |
1428 | EFI_STATUS\r | |
1429 | BdsSetBootPriority4SameTypeDev (\r | |
1430 | IN UINT16 DeviceType,\r | |
1431 | IN OUT BBS_TABLE *LocalBbsTable,\r | |
1432 | IN OUT UINT16 *Priority\r | |
1433 | )\r | |
1434 | /*++\r | |
1435 | DeviceType - BBS_FLOPPY, BBS_HARDDISK, BBS_CDROM and so on\r | |
1436 | LocalBbsTable - BBS table instance\r | |
1437 | Priority - As input arg, it is the start point of boot priority, as output arg, it is the start point of boot\r | |
1438 | priority can be used next time.\r | |
1439 | --*/\r | |
1440 | {\r | |
1441 | UINT8 *DevOrder;\r | |
1442 | \r | |
1443 | UINT8 *OrigBuffer;\r | |
1444 | UINT16 *DevIndex;\r | |
1445 | UINTN DevOrderSize;\r | |
1446 | UINTN DevCount;\r | |
1447 | UINTN Index;\r | |
1448 | \r | |
1449 | DevOrder = BdsLibGetVariableAndSize (\r | |
1450 | VarLegacyDevOrder,\r | |
1451 | &EfiLegacyDevOrderGuid,\r | |
1452 | &DevOrderSize\r | |
1453 | );\r | |
1454 | if (NULL == DevOrder) {\r | |
1455 | return EFI_OUT_OF_RESOURCES;\r | |
1456 | }\r | |
1457 | \r | |
1458 | OrigBuffer = DevOrder;\r | |
1459 | while (DevOrder < OrigBuffer + DevOrderSize) {\r | |
1460 | if (DeviceType == * (BBS_TYPE *) DevOrder) {\r | |
1461 | break;\r | |
1462 | }\r | |
1463 | \r | |
1464 | DevOrder += sizeof (BBS_TYPE);\r | |
1465 | DevOrder += *(UINT16 *) DevOrder;\r | |
1466 | }\r | |
1467 | \r | |
1468 | if (DevOrder >= OrigBuffer + DevOrderSize) {\r | |
1469 | SafeFreePool (OrigBuffer);\r | |
1470 | return EFI_NOT_FOUND;\r | |
1471 | }\r | |
1472 | \r | |
1473 | DevOrder += sizeof (BBS_TYPE);\r | |
1474 | DevCount = (*((UINT16 *) DevOrder) - sizeof (UINT16)) / sizeof (UINT16);\r | |
1475 | DevIndex = (UINT16 *) (DevOrder + sizeof (UINT16));\r | |
1476 | //\r | |
1477 | // If the high byte of the DevIndex is 0xFF, it indicates that this device has been disabled.\r | |
1478 | //\r | |
1479 | for (Index = 0; Index < DevCount; Index++) {\r | |
1480 | if ((DevIndex[Index] & 0xFF00) == 0xFF00) {\r | |
1481 | //\r | |
1482 | // LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = BBS_DISABLED_ENTRY;\r | |
1483 | //\r | |
1484 | } else {\r | |
1485 | LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = *Priority;\r | |
1486 | (*Priority)++;\r | |
1487 | }\r | |
1488 | }\r | |
1489 | \r | |
1490 | SafeFreePool (OrigBuffer);\r | |
1491 | return EFI_SUCCESS;\r | |
1492 | }\r | |
1493 | \r | |
1494 | VOID\r | |
1495 | PrintBbsTable (\r | |
1496 | IN BBS_TABLE *LocalBbsTable\r | |
1497 | )\r | |
1498 | {\r | |
1499 | UINT16 Idx;\r | |
1500 | \r | |
1501 | DEBUG ((DEBUG_ERROR, "\n"));\r | |
1502 | DEBUG ((DEBUG_ERROR, " NO Prio bb/dd/ff cl/sc Type Stat segm:offs\n"));\r | |
1503 | DEBUG ((DEBUG_ERROR, "=============================================\n"));\r | |
1504 | for (Idx = 0; Idx < MAX_BBS_ENTRIES; Idx++) {\r | |
1505 | if ((LocalBbsTable[Idx].BootPriority == BBS_IGNORE_ENTRY) ||\r | |
1506 | (LocalBbsTable[Idx].BootPriority == BBS_DO_NOT_BOOT_FROM) ||\r | |
1507 | (LocalBbsTable[Idx].BootPriority == BBS_LOWEST_PRIORITY)\r | |
1508 | ) {\r | |
1509 | continue;\r | |
1510 | }\r | |
1511 | \r | |
1512 | DEBUG (\r | |
1513 | (DEBUG_ERROR,\r | |
1514 | " %02x: %04x %02x/%02x/%02x %02x/02%x %04x %04x %04x:%04x\n",\r | |
1515 | (UINTN) Idx,\r | |
1516 | (UINTN) LocalBbsTable[Idx].BootPriority,\r | |
1517 | (UINTN) LocalBbsTable[Idx].Bus,\r | |
1518 | (UINTN) LocalBbsTable[Idx].Device,\r | |
1519 | (UINTN) LocalBbsTable[Idx].Function,\r | |
1520 | (UINTN) LocalBbsTable[Idx].Class,\r | |
1521 | (UINTN) LocalBbsTable[Idx].SubClass,\r | |
1522 | (UINTN) LocalBbsTable[Idx].DeviceType,\r | |
1523 | (UINTN) * (UINT16 *) &LocalBbsTable[Idx].StatusFlags,\r | |
1524 | (UINTN) LocalBbsTable[Idx].BootHandlerSegment,\r | |
1525 | (UINTN) LocalBbsTable[Idx].BootHandlerOffset,\r | |
1526 | (UINTN) ((LocalBbsTable[Idx].MfgStringSegment << 4) + LocalBbsTable[Idx].MfgStringOffset),\r | |
1527 | (UINTN) ((LocalBbsTable[Idx].DescStringSegment << 4) + LocalBbsTable[Idx].DescStringOffset))\r | |
1528 | );\r | |
1529 | }\r | |
1530 | \r | |
1531 | DEBUG ((DEBUG_ERROR, "\n"));\r | |
1532 | }\r | |
1533 | \r | |
1534 | EFI_STATUS\r | |
1535 | BdsRefreshBbsTableForBoot (\r | |
1536 | IN BDS_COMMON_OPTION *Entry\r | |
1537 | )\r | |
1538 | {\r | |
1539 | EFI_STATUS Status;\r | |
1540 | UINT16 HddCount;\r | |
1541 | UINT16 BbsCount;\r | |
1542 | HDD_INFO *LocalHddInfo;\r | |
1543 | BBS_TABLE *LocalBbsTable;\r | |
1544 | UINT16 DevType;\r | |
1545 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1546 | UINTN Index;\r | |
1547 | UINT16 Priority;\r | |
1548 | UINT16 *BootOrder;\r | |
1549 | UINTN BootOrderSize;\r | |
1550 | UINT8 *BootOptionVar;\r | |
1551 | UINTN BootOptionSize;\r | |
1552 | UINT16 BootOption[100];\r | |
1553 | UINT8 *Ptr;\r | |
1554 | UINT16 DevPathLen;\r | |
1555 | EFI_DEVICE_PATH_PROTOCOL *DevPath;\r | |
1556 | \r | |
1557 | HddCount = 0;\r | |
1558 | BbsCount = 0;\r | |
1559 | LocalHddInfo = NULL;\r | |
1560 | LocalBbsTable = NULL;\r | |
1561 | DevType = BBS_UNKNOWN;\r | |
1562 | \r | |
1563 | Status = EfiLibLocateProtocol (&gEfiLegacyBiosProtocolGuid, (VOID **) &LegacyBios);\r | |
1564 | if (EFI_ERROR (Status)) {\r | |
1565 | return Status;\r | |
1566 | }\r | |
1567 | \r | |
1568 | LegacyBios->GetBbsInfo (\r | |
1569 | LegacyBios,\r | |
1570 | &HddCount,\r | |
1571 | &LocalHddInfo,\r | |
1572 | &BbsCount,\r | |
1573 | &LocalBbsTable\r | |
1574 | );\r | |
1575 | //\r | |
1576 | // First, set all the present devices' boot priority to BBS_UNPRIORITIZED_ENTRY\r | |
1577 | // We will set them according to the settings setup by user\r | |
1578 | //\r | |
1579 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1580 | if (!((BBS_IGNORE_ENTRY == LocalBbsTable[Index].BootPriority) ||\r | |
1581 | (BBS_DO_NOT_BOOT_FROM == LocalBbsTable[Index].BootPriority) ||\r | |
1582 | (BBS_LOWEST_PRIORITY == LocalBbsTable[Index].BootPriority))) {\r | |
1583 | LocalBbsTable[Index].BootPriority = BBS_UNPRIORITIZED_ENTRY;\r | |
1584 | }\r | |
1585 | }\r | |
1586 | //\r | |
1587 | // boot priority always starts at 0\r | |
1588 | //\r | |
1589 | Priority = 0;\r | |
1590 | if (Entry->LoadOptionsSize == sizeof (BBS_TABLE) + sizeof (UINT16)) {\r | |
1591 | //\r | |
1592 | // If Entry stands for a legacy boot option, we prioritize the devices with the same type first.\r | |
1593 | //\r | |
1594 | DevType = ((BBS_TABLE *) Entry->LoadOptions)->DeviceType;\r | |
1595 | Status = BdsSetBootPriority4SameTypeDev (\r | |
1596 | DevType,\r | |
1597 | LocalBbsTable,\r | |
1598 | &Priority\r | |
1599 | );\r | |
1600 | if (EFI_ERROR (Status)) {\r | |
1601 | return Status;\r | |
1602 | }\r | |
1603 | }\r | |
1604 | //\r | |
1605 | // we have to set the boot priority for other BBS entries with different device types\r | |
1606 | //\r | |
1607 | BootOrder = (UINT16 *) BdsLibGetVariableAndSize (\r | |
1608 | L"BootOrder",\r | |
1609 | &gEfiGlobalVariableGuid,\r | |
1610 | &BootOrderSize\r | |
1611 | );\r | |
1612 | for (Index = 0; BootOrder && Index < BootOrderSize / sizeof (UINT16); Index++) {\r | |
1613 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r | |
1614 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
1615 | BootOption,\r | |
1616 | &gEfiGlobalVariableGuid,\r | |
1617 | &BootOptionSize\r | |
1618 | );\r | |
1619 | if (NULL == BootOptionVar) {\r | |
1620 | continue;\r | |
1621 | }\r | |
1622 | \r | |
1623 | Ptr = BootOptionVar;\r | |
1624 | \r | |
1625 | Ptr += sizeof (UINT32);\r | |
1626 | DevPathLen = *(UINT16 *) Ptr;\r | |
1627 | Ptr += sizeof (UINT16);\r | |
1628 | Ptr += StrSize ((UINT16 *) Ptr);\r | |
1629 | DevPath = (EFI_DEVICE_PATH_PROTOCOL *) Ptr;\r | |
1630 | if (BBS_DEVICE_PATH != DevPath->Type || BBS_BBS_DP != DevPath->SubType) {\r | |
1631 | SafeFreePool (BootOptionVar);\r | |
1632 | continue;\r | |
1633 | }\r | |
1634 | \r | |
1635 | Ptr += DevPathLen;\r | |
1636 | if (DevType == ((BBS_TABLE *) Ptr)->DeviceType) {\r | |
1637 | //\r | |
1638 | // We don't want to process twice for a device type\r | |
1639 | //\r | |
1640 | SafeFreePool (BootOptionVar);\r | |
1641 | continue;\r | |
1642 | }\r | |
1643 | \r | |
1644 | Status = BdsSetBootPriority4SameTypeDev (\r | |
1645 | ((BBS_TABLE *) Ptr)->DeviceType,\r | |
1646 | LocalBbsTable,\r | |
1647 | &Priority\r | |
1648 | );\r | |
1649 | SafeFreePool (BootOptionVar);\r | |
1650 | if (EFI_ERROR (Status)) {\r | |
1651 | break;\r | |
1652 | }\r | |
1653 | }\r | |
1654 | \r | |
1655 | if (BootOrder) {\r | |
1656 | SafeFreePool (BootOrder);\r | |
1657 | }\r | |
1658 | //\r | |
1659 | // For debug\r | |
1660 | //\r | |
1661 | PrintBbsTable (LocalBbsTable);\r | |
1662 | \r | |
1663 | return Status;\r | |
1664 | }\r |