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1 | /** @file\r |
2 | This function deal with the legacy boot option, it create, delete\r | |
3 | and manage the legacy boot option, all legacy boot option is getting from\r | |
4 | the legacy BBS table.\r | |
5 | \r | |
4ff5fd20 | 6 | Copyright (c) 2011 - 2017, Intel Corporation. All rights reserved.<BR>\r |
9e3f171d RN |
7 | This program and the accompanying materials\r |
8 | are licensed and made available under the terms and conditions of the BSD License\r | |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include "InternalLegacyBm.h"\r | |
18 | \r | |
19 | #define LEGACY_BM_BOOT_DESCRIPTION_LENGTH 32\r | |
20 | \r | |
21 | /**\r | |
22 | Initialize legacy boot manager library by call EfiBootManagerRegisterLegacyBootSupport\r | |
23 | function to export two function pointer.\r | |
24 | \r | |
25 | @param ImageHandle The image handle.\r | |
26 | @param SystemTable The system table.\r | |
27 | \r | |
28 | @retval EFI_SUCCESS The legacy boot manager library is initialized correctly.\r | |
29 | @return Other value if failed to initialize the legacy boot manager library.\r | |
30 | **/\r | |
31 | EFI_STATUS\r | |
32 | EFIAPI\r | |
33 | LegacyBootManagerLibConstructor (\r | |
34 | IN EFI_HANDLE ImageHandle,\r | |
35 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
36 | )\r | |
37 | {\r | |
38 | EfiBootManagerRegisterLegacyBootSupport (\r | |
39 | LegacyBmRefreshAllBootOption,\r | |
40 | LegacyBmBoot\r | |
41 | );\r | |
42 | return EFI_SUCCESS;\r | |
43 | }\r | |
44 | \r | |
45 | /**\r | |
46 | Get the device type from the input legacy device path.\r | |
47 | \r | |
48 | @param DevicePath The legacy device path.\r | |
49 | \r | |
50 | @retval The legacy device type.\r | |
51 | **/\r | |
52 | UINT16\r | |
53 | LegacyBmDeviceType (\r | |
54 | EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
55 | )\r | |
56 | {\r | |
57 | ASSERT ((DevicePathType (DevicePath) == BBS_DEVICE_PATH) &&\r | |
58 | (DevicePathSubType (DevicePath) == BBS_BBS_DP));\r | |
59 | return ((BBS_BBS_DEVICE_PATH *) DevicePath)->DeviceType;\r | |
60 | }\r | |
61 | \r | |
62 | /**\r | |
63 | Validate the BbsEntry base on the Boot Priority info in the BbsEntry.\r | |
64 | \r | |
65 | @param BbsEntry The input bbs entry info.\r | |
66 | \r | |
67 | @retval TRUE The BbsEntry is valid.\r | |
68 | @retval FALSE The BbsEntry is invalid.\r | |
69 | **/\r | |
70 | BOOLEAN\r | |
71 | LegacyBmValidBbsEntry (\r | |
72 | IN BBS_TABLE *BbsEntry\r | |
73 | )\r | |
74 | {\r | |
75 | switch (BbsEntry->BootPriority) {\r | |
76 | case BBS_IGNORE_ENTRY:\r | |
77 | case BBS_DO_NOT_BOOT_FROM:\r | |
78 | case BBS_LOWEST_PRIORITY:\r | |
79 | return FALSE;\r | |
80 | default:\r | |
81 | return TRUE;\r | |
82 | }\r | |
83 | }\r | |
84 | \r | |
85 | /**\r | |
86 | Build Legacy Device Name String according.\r | |
87 | \r | |
88 | @param CurBBSEntry BBS Table.\r | |
89 | @param Index Index.\r | |
90 | @param BufSize The buffer size.\r | |
91 | @param BootString The output string.\r | |
92 | \r | |
93 | **/\r | |
94 | VOID\r | |
95 | LegacyBmBuildLegacyDevNameString (\r | |
96 | IN BBS_TABLE *CurBBSEntry,\r | |
97 | IN UINTN Index,\r | |
98 | IN UINTN BufSize,\r | |
99 | OUT CHAR16 *BootString\r | |
100 | )\r | |
101 | {\r | |
102 | CHAR16 *Fmt;\r | |
103 | CHAR16 *Type;\r | |
104 | CHAR8 *StringDesc;\r | |
105 | CHAR8 StringBufferA[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
106 | CHAR16 StringBufferU[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
107 | \r | |
108 | switch (Index) {\r | |
109 | //\r | |
110 | // Primary Master\r | |
111 | //\r | |
112 | case 1:\r | |
113 | Fmt = L"Primary Master %s";\r | |
114 | break;\r | |
115 | \r | |
116 | //\r | |
117 | // Primary Slave\r | |
118 | //\r | |
119 | case 2:\r | |
120 | Fmt = L"Primary Slave %s";\r | |
121 | break;\r | |
122 | \r | |
123 | //\r | |
124 | // Secondary Master\r | |
125 | //\r | |
126 | case 3:\r | |
127 | Fmt = L"Secondary Master %s";\r | |
128 | break;\r | |
129 | \r | |
130 | //\r | |
131 | // Secondary Slave\r | |
132 | //\r | |
133 | case 4:\r | |
134 | Fmt = L"Secondary Slave %s";\r | |
135 | break;\r | |
136 | \r | |
137 | default:\r | |
138 | Fmt = L"%s";\r | |
139 | break;\r | |
140 | }\r | |
141 | \r | |
142 | switch (CurBBSEntry->DeviceType) {\r | |
143 | case BBS_FLOPPY:\r | |
144 | Type = L"Floppy";\r | |
145 | break;\r | |
146 | \r | |
147 | case BBS_HARDDISK:\r | |
148 | Type = L"Harddisk";\r | |
149 | break;\r | |
150 | \r | |
151 | case BBS_CDROM:\r | |
152 | Type = L"CDROM";\r | |
153 | break;\r | |
154 | \r | |
155 | case BBS_PCMCIA:\r | |
156 | Type = L"PCMCIAe";\r | |
157 | break;\r | |
158 | \r | |
159 | case BBS_USB:\r | |
160 | Type = L"USB";\r | |
161 | break;\r | |
162 | \r | |
163 | case BBS_EMBED_NETWORK:\r | |
164 | Type = L"Network";\r | |
165 | break;\r | |
166 | \r | |
167 | case BBS_BEV_DEVICE:\r | |
168 | Type = L"BEVe";\r | |
169 | break;\r | |
170 | \r | |
171 | case BBS_UNKNOWN:\r | |
172 | default:\r | |
173 | Type = L"Unknown";\r | |
174 | break;\r | |
175 | }\r | |
176 | //\r | |
177 | // If current BBS entry has its description then use it.\r | |
178 | //\r | |
179 | StringDesc = (CHAR8 *) (UINTN) ((CurBBSEntry->DescStringSegment << 4) + CurBBSEntry->DescStringOffset);\r | |
180 | if (NULL != StringDesc) {\r | |
181 | //\r | |
182 | // Only get fisrt 32 characters, this is suggested by BBS spec\r | |
183 | //\r | |
184 | CopyMem (StringBufferA, StringDesc, LEGACY_BM_BOOT_DESCRIPTION_LENGTH);\r | |
185 | StringBufferA[LEGACY_BM_BOOT_DESCRIPTION_LENGTH] = 0;\r | |
80901a24 | 186 | AsciiStrToUnicodeStrS (StringBufferA, StringBufferU, ARRAY_SIZE (StringBufferU));\r |
9e3f171d RN |
187 | Fmt = L"%s";\r |
188 | Type = StringBufferU;\r | |
189 | }\r | |
190 | \r | |
191 | //\r | |
192 | // BbsTable 16 entries are for onboard IDE.\r | |
193 | // Set description string for SATA harddisks, Harddisk 0 ~ Harddisk 11\r | |
194 | //\r | |
195 | if (Index >= 5 && Index <= 16 && (CurBBSEntry->DeviceType == BBS_HARDDISK || CurBBSEntry->DeviceType == BBS_CDROM)) {\r | |
196 | Fmt = L"%s %d";\r | |
197 | UnicodeSPrint (BootString, BufSize, Fmt, Type, Index - 5);\r | |
198 | } else {\r | |
199 | UnicodeSPrint (BootString, BufSize, Fmt, Type);\r | |
200 | }\r | |
201 | }\r | |
202 | \r | |
203 | /**\r | |
204 | Get the Bbs index for the input boot option.\r | |
205 | \r | |
206 | @param BootOption The input boot option info.\r | |
207 | @param BbsTable The input Bbs table.\r | |
208 | @param BbsCount The input total bbs entry number.\r | |
209 | @param BbsIndexUsed The array shows how many BBS table indexs have been used.\r | |
210 | \r | |
211 | @retval The index for the input boot option.\r | |
212 | **/\r | |
213 | UINT16\r | |
214 | LegacyBmFuzzyMatch (\r | |
215 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption,\r | |
216 | BBS_TABLE *BbsTable,\r | |
217 | UINT16 BbsCount,\r | |
218 | BOOLEAN *BbsIndexUsed\r | |
219 | )\r | |
220 | {\r | |
221 | UINT16 Index;\r | |
222 | LEGACY_BM_BOOT_OPTION_BBS_DATA *BbsData;\r | |
223 | CHAR16 Description[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
224 | \r | |
225 | BbsData = (LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption->OptionalData;\r | |
226 | \r | |
227 | //\r | |
228 | // Directly check the BBS index stored in BootOption\r | |
229 | //\r | |
230 | if ((BbsData->BbsIndex < BbsCount) &&\r | |
231 | (LegacyBmDeviceType (BootOption->FilePath) == BbsTable[BbsData->BbsIndex].DeviceType)) {\r | |
232 | LegacyBmBuildLegacyDevNameString (\r | |
233 | &BbsTable[BbsData->BbsIndex],\r | |
234 | BbsData->BbsIndex,\r | |
235 | sizeof (Description),\r | |
236 | Description\r | |
237 | );\r | |
238 | if ((StrCmp (Description, BootOption->Description) == 0) && !BbsIndexUsed[BbsData->BbsIndex]) {\r | |
239 | //\r | |
240 | // If devices with the same description string are connected, \r | |
241 | // the BbsIndex of the first device is returned for the other device also.\r | |
242 | // So, check if the BbsIndex is already being used, before assigning the BbsIndex.\r | |
243 | //\r | |
244 | BbsIndexUsed[BbsData->BbsIndex] = TRUE;\r | |
245 | return BbsData->BbsIndex;\r | |
246 | }\r | |
247 | }\r | |
248 | \r | |
249 | //\r | |
250 | // BBS table could be changed (entry removed/moved)\r | |
251 | // find the correct BBS index\r | |
252 | //\r | |
253 | for (Index = 0; Index < BbsCount; Index++) {\r | |
254 | if (!LegacyBmValidBbsEntry (&BbsTable[Index]) ||\r | |
255 | (BbsTable[Index].DeviceType != LegacyBmDeviceType (BootOption->FilePath))) {\r | |
256 | continue;\r | |
257 | }\r | |
258 | \r | |
259 | LegacyBmBuildLegacyDevNameString (\r | |
260 | &BbsTable[Index],\r | |
261 | Index,\r | |
262 | sizeof (Description),\r | |
263 | Description\r | |
264 | );\r | |
265 | if ((StrCmp (Description, BootOption->Description) == 0) && !BbsIndexUsed[Index]) {\r | |
266 | //\r | |
267 | // If devices with the same description string are connected, \r | |
268 | // the BbsIndex of the first device is assigned for the other device also.\r | |
269 | // So, check if the BbsIndex is already being used, before assigning the corrected BbsIndex.\r | |
270 | //\r | |
271 | break;\r | |
272 | }\r | |
273 | }\r | |
274 | \r | |
275 | //\r | |
276 | // Add the corrected BbsIndex in the UsedBbsIndex Buffer\r | |
277 | //\r | |
278 | if (Index != BbsCount) {\r | |
279 | BbsIndexUsed[Index] = TRUE;\r | |
280 | }\r | |
281 | \r | |
282 | return Index;\r | |
283 | }\r | |
284 | \r | |
285 | /**\r | |
286 | \r | |
287 | Update legacy device order base on the input info.\r | |
288 | \r | |
289 | @param LegacyDevOrder Legacy device order data buffer.\r | |
290 | @param LegacyDevOrderSize Legacy device order data buffer size.\r | |
291 | @param DeviceType Device type which need to check.\r | |
292 | @param OldBbsIndex Old Bds Index.\r | |
293 | @param NewBbsIndex New Bds Index, if it is -1,means remove this option.\r | |
294 | \r | |
295 | **/\r | |
296 | VOID\r | |
297 | LegacyBmUpdateBbsIndex (\r | |
298 | LEGACY_DEV_ORDER_ENTRY *LegacyDevOrder,\r | |
299 | UINTN *LegacyDevOrderSize,\r | |
300 | UINT16 DeviceType,\r | |
301 | UINT16 OldBbsIndex,\r | |
302 | UINT16 NewBbsIndex // Delete entry if -1\r | |
303 | )\r | |
304 | {\r | |
305 | LEGACY_DEV_ORDER_ENTRY *Entry;\r | |
306 | UINTN Index;\r | |
307 | \r | |
308 | ASSERT (((LegacyDevOrder == NULL) && (*LegacyDevOrderSize == 0)) ||\r | |
309 | ((LegacyDevOrder != NULL) && (*LegacyDevOrderSize != 0))\r | |
310 | );\r | |
311 | \r | |
312 | for (Entry = LegacyDevOrder; \r | |
313 | Entry < (LEGACY_DEV_ORDER_ENTRY *) ((UINT8 *) LegacyDevOrder + *LegacyDevOrderSize);\r | |
314 | Entry = (LEGACY_DEV_ORDER_ENTRY *) ((UINTN) Entry + sizeof (BBS_TYPE) + Entry->Length)\r | |
315 | ) {\r | |
316 | if (Entry->BbsType == DeviceType) {\r | |
317 | for (Index = 0; Index < Entry->Length / sizeof (UINT16) - 1; Index++) {\r | |
318 | if (Entry->Data[Index] == OldBbsIndex) {\r | |
319 | if (NewBbsIndex == (UINT16) -1) {\r | |
320 | //\r | |
321 | // Delete the old entry\r | |
322 | //\r | |
323 | CopyMem (\r | |
324 | &Entry->Data[Index], \r | |
325 | &Entry->Data[Index + 1], \r | |
326 | (UINT8 *) LegacyDevOrder + *LegacyDevOrderSize - (UINT8 *) &Entry->Data[Index + 1]\r | |
327 | );\r | |
328 | Entry->Length -= sizeof (UINT16);\r | |
329 | *LegacyDevOrderSize -= sizeof(UINT16);\r | |
330 | } else {\r | |
331 | Entry->Data[Index] = NewBbsIndex;\r | |
332 | }\r | |
333 | break;\r | |
334 | }\r | |
335 | }\r | |
336 | break;\r | |
337 | }\r | |
338 | }\r | |
339 | }\r | |
340 | \r | |
341 | /**\r | |
342 | Delete all the legacy boot options.\r | |
343 | \r | |
344 | @retval EFI_SUCCESS All legacy boot options are deleted.\r | |
345 | **/\r | |
346 | EFI_STATUS\r | |
347 | LegacyBmDeleteAllBootOptions (\r | |
348 | VOID\r | |
349 | )\r | |
350 | {\r | |
351 | EFI_STATUS Status;\r | |
352 | UINTN Index;\r | |
353 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption;\r | |
354 | UINTN BootOptionCount;\r | |
355 | \r | |
356 | BootOption = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
357 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
358 | if ((DevicePathType (BootOption[Index].FilePath) == BBS_DEVICE_PATH) &&\r | |
359 | (DevicePathSubType (BootOption[Index].FilePath) == BBS_BBS_DP)) {\r | |
360 | Status = EfiBootManagerDeleteLoadOptionVariable (BootOption[Index].OptionNumber, BootOption[Index].OptionType);\r | |
361 | //\r | |
362 | // Deleting variable with current variable implementation shouldn't fail.\r | |
363 | //\r | |
364 | ASSERT_EFI_ERROR (Status);\r | |
365 | }\r | |
366 | }\r | |
367 | \r | |
368 | Status = gRT->SetVariable (\r | |
369 | VAR_LEGACY_DEV_ORDER,\r | |
370 | &gEfiLegacyDevOrderVariableGuid,\r | |
371 | 0,\r | |
372 | 0,\r | |
373 | NULL\r | |
374 | );\r | |
375 | //\r | |
376 | // Deleting variable with current variable implementation shouldn't fail.\r | |
377 | //\r | |
378 | ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_FOUND);\r | |
379 | \r | |
380 | return EFI_SUCCESS;\r | |
381 | }\r | |
382 | \r | |
383 | \r | |
384 | /**\r | |
385 | Delete all the invalid legacy boot options.\r | |
386 | \r | |
387 | @retval EFI_SUCCESS All invalide legacy boot options are deleted.\r | |
388 | @retval EFI_OUT_OF_RESOURCES Fail to allocate necessary memory.\r | |
389 | @retval EFI_NOT_FOUND Fail to retrive variable of boot order.\r | |
390 | **/\r | |
391 | EFI_STATUS\r | |
392 | LegacyBmDeleteAllInvalidBootOptions (\r | |
393 | VOID\r | |
394 | )\r | |
395 | {\r | |
396 | EFI_STATUS Status;\r | |
397 | UINT16 HddCount;\r | |
398 | UINT16 BbsCount;\r | |
399 | HDD_INFO *HddInfo;\r | |
400 | BBS_TABLE *BbsTable;\r | |
401 | UINT16 BbsIndex;\r | |
402 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
403 | UINTN Index;\r | |
404 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption;\r | |
405 | UINTN BootOptionCount;\r | |
406 | LEGACY_DEV_ORDER_ENTRY *LegacyDevOrder;\r | |
407 | UINTN LegacyDevOrderSize;\r | |
408 | BOOLEAN *BbsIndexUsed;\r | |
409 | \r | |
410 | HddCount = 0;\r | |
411 | BbsCount = 0;\r | |
412 | HddInfo = NULL;\r | |
413 | BbsTable = NULL;\r | |
414 | \r | |
415 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
416 | if (EFI_ERROR (Status)) {\r | |
417 | return Status;\r | |
418 | }\r | |
419 | \r | |
420 | Status = LegacyBios->GetBbsInfo (\r | |
421 | LegacyBios,\r | |
422 | &HddCount,\r | |
423 | &HddInfo,\r | |
424 | &BbsCount,\r | |
425 | &BbsTable\r | |
426 | );\r | |
427 | if (EFI_ERROR (Status)) {\r | |
428 | return Status;\r | |
429 | }\r | |
430 | \r | |
431 | GetVariable2 (VAR_LEGACY_DEV_ORDER, &gEfiLegacyDevOrderVariableGuid, (VOID **) &LegacyDevOrder, &LegacyDevOrderSize);\r | |
432 | \r | |
433 | BootOption = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
434 | \r | |
435 | BbsIndexUsed = AllocateZeroPool (BbsCount * sizeof (BOOLEAN));\r | |
436 | ASSERT (BbsIndexUsed != NULL);\r | |
437 | \r | |
438 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
439 | //\r | |
440 | // Skip non legacy boot option\r | |
441 | //\r | |
442 | if ((DevicePathType (BootOption[Index].FilePath) != BBS_DEVICE_PATH) ||\r | |
443 | (DevicePathSubType (BootOption[Index].FilePath) != BBS_BBS_DP)) {\r | |
444 | continue;\r | |
445 | }\r | |
446 | \r | |
447 | BbsIndex = LegacyBmFuzzyMatch (&BootOption[Index], BbsTable, BbsCount, BbsIndexUsed);\r | |
448 | if (BbsIndex == BbsCount) {\r | |
449 | DEBUG ((EFI_D_INFO, "[LegacyBds] Delete Boot Option Boot%04x: %s\n", (UINTN) BootOption[Index].OptionNumber, BootOption[Index].Description));\r | |
450 | //\r | |
451 | // Delete entry from LegacyDevOrder\r | |
452 | //\r | |
453 | LegacyBmUpdateBbsIndex (\r | |
454 | LegacyDevOrder,\r | |
455 | &LegacyDevOrderSize,\r | |
456 | LegacyBmDeviceType (BootOption[Index].FilePath),\r | |
457 | ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex,\r | |
458 | (UINT16) -1\r | |
459 | );\r | |
460 | EfiBootManagerDeleteLoadOptionVariable (BootOption[Index].OptionNumber, BootOption[Index].OptionType);\r | |
461 | } else {\r | |
462 | if (((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex != BbsIndex) {\r | |
463 | DEBUG ((EFI_D_INFO, "[LegacyBds] Update Boot Option Boot%04x: %s Bbs0x%04x->Bbs0x%04x\n", (UINTN) BootOption[Index].OptionNumber, BootOption[Index].Description,\r | |
464 | (UINTN) ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex, (UINTN) BbsIndex));\r | |
465 | //\r | |
466 | // Update the BBS index in LegacyDevOrder\r | |
467 | //\r | |
468 | LegacyBmUpdateBbsIndex (\r | |
469 | LegacyDevOrder,\r | |
470 | &LegacyDevOrderSize,\r | |
471 | LegacyBmDeviceType (BootOption[Index].FilePath),\r | |
472 | ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex,\r | |
473 | BbsIndex\r | |
474 | );\r | |
475 | \r | |
476 | //\r | |
477 | // Update the OptionalData in the Boot#### variable\r | |
478 | //\r | |
479 | ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex = BbsIndex;\r | |
480 | EfiBootManagerLoadOptionToVariable (&BootOption[Index]);\r | |
481 | }\r | |
482 | }\r | |
483 | }\r | |
484 | EfiBootManagerFreeLoadOptions (BootOption, BootOptionCount);\r | |
485 | \r | |
486 | if (LegacyDevOrder != NULL) {\r | |
487 | Status = gRT->SetVariable (\r | |
488 | VAR_LEGACY_DEV_ORDER,\r | |
489 | &gEfiLegacyDevOrderVariableGuid,\r | |
490 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
491 | LegacyDevOrderSize,\r | |
492 | LegacyDevOrder\r | |
493 | );\r | |
494 | //\r | |
495 | // Shrink variable with current variable implementation shouldn't fail.\r | |
496 | //\r | |
497 | ASSERT_EFI_ERROR (Status);\r | |
498 | \r | |
499 | FreePool (LegacyDevOrder);\r | |
500 | }\r | |
501 | FreePool(BbsIndexUsed);\r | |
502 | return Status;\r | |
503 | }\r | |
504 | \r | |
505 | /**\r | |
506 | Create legacy boot option.\r | |
507 | \r | |
508 | @param BootOption Ponter to the boot option which will be crated.\r | |
509 | @param BbsEntry The input bbs entry info.\r | |
510 | @param BbsIndex The BBS index.\r | |
511 | \r | |
512 | @retval EFI_SUCCESS Create legacy boot option successfully.\r | |
513 | @retval EFI_INVALID_PARAMETER Invalid input parameter.\r | |
514 | \r | |
515 | **/\r | |
516 | EFI_STATUS\r | |
517 | LegacyBmCreateLegacyBootOption (\r | |
518 | IN OUT EFI_BOOT_MANAGER_LOAD_OPTION *BootOption,\r | |
519 | IN BBS_TABLE *BbsEntry,\r | |
520 | IN UINT16 BbsIndex\r | |
521 | )\r | |
522 | {\r | |
523 | EFI_STATUS Status;\r | |
524 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
525 | CHAR16 Description[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
526 | CHAR8 HelpString[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
527 | UINTN StringLen;\r | |
528 | LEGACY_BM_BOOT_OPTION_BBS_DATA *OptionalData;\r | |
529 | BBS_BBS_DEVICE_PATH *BbsNode;\r | |
530 | \r | |
531 | if ((BootOption == NULL) || (BbsEntry == NULL)) {\r | |
532 | return EFI_INVALID_PARAMETER;\r | |
533 | }\r | |
534 | \r | |
535 | LegacyBmBuildLegacyDevNameString (BbsEntry, BbsIndex, sizeof (Description), Description);\r | |
536 | \r | |
537 | //\r | |
538 | // Create the BBS device path with description string\r | |
539 | //\r | |
9b82facd | 540 | UnicodeStrToAsciiStrS (Description, HelpString, sizeof (HelpString));\r |
9e3f171d RN |
541 | StringLen = AsciiStrLen (HelpString);\r |
542 | DevicePath = AllocatePool (sizeof (BBS_BBS_DEVICE_PATH) + StringLen + END_DEVICE_PATH_LENGTH);\r | |
543 | ASSERT (DevicePath != NULL);\r | |
544 | \r | |
545 | BbsNode = (BBS_BBS_DEVICE_PATH *) DevicePath;\r | |
546 | SetDevicePathNodeLength (BbsNode, sizeof (BBS_BBS_DEVICE_PATH) + StringLen);\r | |
547 | BbsNode->Header.Type = BBS_DEVICE_PATH;\r | |
548 | BbsNode->Header.SubType = BBS_BBS_DP;\r | |
549 | BbsNode->DeviceType = BbsEntry->DeviceType;\r | |
550 | CopyMem (&BbsNode->StatusFlag, &BbsEntry->StatusFlags, sizeof (BBS_STATUS_FLAGS));\r | |
551 | CopyMem (BbsNode->String, HelpString, StringLen + 1);\r | |
552 | \r | |
553 | SetDevicePathEndNode (NextDevicePathNode (BbsNode));\r | |
554 | \r | |
555 | //\r | |
556 | // Create the OptionalData\r | |
557 | //\r | |
558 | OptionalData = AllocatePool (sizeof (LEGACY_BM_BOOT_OPTION_BBS_DATA));\r | |
559 | ASSERT (OptionalData != NULL);\r | |
560 | OptionalData->BbsIndex = BbsIndex;\r | |
561 | \r | |
562 | //\r | |
563 | // Create the BootOption\r | |
564 | //\r | |
565 | Status = EfiBootManagerInitializeLoadOption (\r | |
566 | BootOption,\r | |
567 | LoadOptionNumberUnassigned,\r | |
568 | LoadOptionTypeBoot,\r | |
569 | LOAD_OPTION_ACTIVE,\r | |
570 | Description,\r | |
571 | DevicePath,\r | |
572 | (UINT8 *) OptionalData,\r | |
573 | sizeof (LEGACY_BM_BOOT_OPTION_BBS_DATA)\r | |
574 | );\r | |
575 | FreePool (DevicePath);\r | |
576 | FreePool (OptionalData);\r | |
577 | \r | |
578 | return Status;\r | |
579 | }\r | |
580 | \r | |
581 | /**\r | |
582 | Fill the device order buffer.\r | |
583 | \r | |
584 | @param BbsTable The BBS table.\r | |
585 | @param BbsType The BBS Type.\r | |
586 | @param BbsCount The BBS Count.\r | |
587 | @param Buf device order buffer.\r | |
588 | \r | |
589 | @return The device order buffer.\r | |
590 | \r | |
591 | **/\r | |
592 | UINT16 *\r | |
593 | LegacyBmFillDevOrderBuf (\r | |
594 | IN BBS_TABLE *BbsTable,\r | |
595 | IN BBS_TYPE BbsType,\r | |
596 | IN UINTN BbsCount,\r | |
597 | OUT UINT16 *Buf\r | |
598 | )\r | |
599 | {\r | |
600 | UINTN Index;\r | |
601 | \r | |
602 | for (Index = 0; Index < BbsCount; Index++) {\r | |
603 | if (!LegacyBmValidBbsEntry (&BbsTable[Index])) {\r | |
604 | continue;\r | |
605 | }\r | |
606 | \r | |
607 | if (BbsTable[Index].DeviceType != BbsType) {\r | |
608 | continue;\r | |
609 | }\r | |
610 | \r | |
611 | *Buf = (UINT16) (Index & 0xFF);\r | |
612 | Buf++;\r | |
613 | }\r | |
614 | \r | |
615 | return Buf;\r | |
616 | }\r | |
617 | \r | |
618 | /**\r | |
619 | Create the device order buffer.\r | |
620 | \r | |
621 | @param BbsTable The BBS table.\r | |
622 | @param BbsCount The BBS Count.\r | |
623 | \r | |
624 | @retval EFI_SUCCES The buffer is created and the EFI variable named \r | |
625 | VAR_LEGACY_DEV_ORDER and EfiLegacyDevOrderGuid is\r | |
626 | set correctly.\r | |
627 | @retval EFI_OUT_OF_RESOURCES Memmory or storage is not enough.\r | |
628 | @retval EFI_DEVICE_ERROR Fail to add the device order into EFI variable fail\r | |
629 | because of hardware error.\r | |
630 | **/\r | |
631 | EFI_STATUS\r | |
632 | LegacyBmCreateDevOrder (\r | |
633 | IN BBS_TABLE *BbsTable,\r | |
634 | IN UINT16 BbsCount\r | |
635 | )\r | |
636 | {\r | |
637 | UINTN Index;\r | |
638 | UINTN FDCount;\r | |
639 | UINTN HDCount;\r | |
640 | UINTN CDCount;\r | |
641 | UINTN NETCount;\r | |
642 | UINTN BEVCount;\r | |
643 | UINTN TotalSize;\r | |
644 | UINTN HeaderSize;\r | |
645 | LEGACY_DEV_ORDER_ENTRY *DevOrder;\r | |
646 | LEGACY_DEV_ORDER_ENTRY *DevOrderPtr;\r | |
647 | EFI_STATUS Status;\r | |
648 | \r | |
649 | FDCount = 0;\r | |
650 | HDCount = 0;\r | |
651 | CDCount = 0;\r | |
652 | NETCount = 0;\r | |
653 | BEVCount = 0;\r | |
654 | TotalSize = 0;\r | |
655 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r | |
656 | DevOrder = NULL;\r | |
657 | Status = EFI_SUCCESS;\r | |
658 | \r | |
659 | //\r | |
660 | // Count all boot devices\r | |
661 | //\r | |
662 | for (Index = 0; Index < BbsCount; Index++) {\r | |
663 | if (!LegacyBmValidBbsEntry (&BbsTable[Index])) {\r | |
664 | continue;\r | |
665 | }\r | |
666 | \r | |
667 | switch (BbsTable[Index].DeviceType) {\r | |
668 | case BBS_FLOPPY:\r | |
669 | FDCount++;\r | |
670 | break;\r | |
671 | \r | |
672 | case BBS_HARDDISK:\r | |
673 | HDCount++;\r | |
674 | break;\r | |
675 | \r | |
676 | case BBS_CDROM:\r | |
677 | CDCount++;\r | |
678 | break;\r | |
679 | \r | |
680 | case BBS_EMBED_NETWORK:\r | |
681 | NETCount++;\r | |
682 | break;\r | |
683 | \r | |
684 | case BBS_BEV_DEVICE:\r | |
685 | BEVCount++;\r | |
686 | break;\r | |
687 | \r | |
688 | default:\r | |
689 | break;\r | |
690 | }\r | |
691 | }\r | |
692 | \r | |
693 | TotalSize += (HeaderSize + sizeof (UINT16) * FDCount);\r | |
694 | TotalSize += (HeaderSize + sizeof (UINT16) * HDCount);\r | |
695 | TotalSize += (HeaderSize + sizeof (UINT16) * CDCount);\r | |
696 | TotalSize += (HeaderSize + sizeof (UINT16) * NETCount);\r | |
697 | TotalSize += (HeaderSize + sizeof (UINT16) * BEVCount);\r | |
698 | \r | |
699 | //\r | |
700 | // Create buffer to hold all boot device order\r | |
701 | //\r | |
702 | DevOrder = AllocateZeroPool (TotalSize);\r | |
703 | if (NULL == DevOrder) {\r | |
704 | return EFI_OUT_OF_RESOURCES;\r | |
705 | }\r | |
706 | DevOrderPtr = DevOrder;\r | |
707 | \r | |
708 | DevOrderPtr->BbsType = BBS_FLOPPY;\r | |
709 | DevOrderPtr->Length = (UINT16) (sizeof (DevOrderPtr->Length) + FDCount * sizeof (UINT16));\r | |
710 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_FLOPPY, BbsCount, DevOrderPtr->Data);\r | |
711 | \r | |
712 | DevOrderPtr->BbsType = BBS_HARDDISK;\r | |
713 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r | |
714 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_HARDDISK, BbsCount, DevOrderPtr->Data);\r | |
715 | \r | |
716 | DevOrderPtr->BbsType = BBS_CDROM;\r | |
717 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r | |
718 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_CDROM, BbsCount, DevOrderPtr->Data);\r | |
719 | \r | |
720 | DevOrderPtr->BbsType = BBS_EMBED_NETWORK;\r | |
721 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r | |
722 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_EMBED_NETWORK, BbsCount, DevOrderPtr->Data);\r | |
723 | \r | |
724 | DevOrderPtr->BbsType = BBS_BEV_DEVICE;\r | |
725 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r | |
726 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_BEV_DEVICE, BbsCount, DevOrderPtr->Data);\r | |
727 | \r | |
4ff5fd20 | 728 | ASSERT (TotalSize == ((UINTN) DevOrderPtr - (UINTN) DevOrder));\r |
9e3f171d RN |
729 | \r |
730 | //\r | |
731 | // Save device order for legacy boot device to variable.\r | |
732 | //\r | |
733 | Status = gRT->SetVariable (\r | |
734 | VAR_LEGACY_DEV_ORDER,\r | |
735 | &gEfiLegacyDevOrderVariableGuid,\r | |
736 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
737 | TotalSize,\r | |
738 | DevOrder\r | |
739 | );\r | |
740 | FreePool (DevOrder);\r | |
741 | \r | |
742 | return Status;\r | |
743 | }\r | |
744 | \r | |
745 | /**\r | |
746 | Add the legacy boot devices from BBS table into \r | |
747 | the legacy device boot order.\r | |
748 | \r | |
749 | @retval EFI_SUCCESS The boot devices are added successfully.\r | |
750 | @retval EFI_NOT_FOUND The legacy boot devices are not found.\r | |
751 | @retval EFI_OUT_OF_RESOURCES Memmory or storage is not enough.\r | |
752 | @retval EFI_DEVICE_ERROR Fail to add the legacy device boot order into EFI variable\r | |
753 | because of hardware error.\r | |
754 | **/\r | |
755 | EFI_STATUS\r | |
756 | LegacyBmUpdateDevOrder (\r | |
757 | VOID\r | |
758 | )\r | |
759 | {\r | |
760 | LEGACY_DEV_ORDER_ENTRY *DevOrder;\r | |
761 | LEGACY_DEV_ORDER_ENTRY *NewDevOrder;\r | |
762 | LEGACY_DEV_ORDER_ENTRY *Ptr;\r | |
763 | LEGACY_DEV_ORDER_ENTRY *NewPtr;\r | |
764 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
765 | EFI_STATUS Status;\r | |
766 | UINT16 HddCount;\r | |
767 | UINT16 BbsCount;\r | |
768 | HDD_INFO *LocalHddInfo;\r | |
769 | BBS_TABLE *LocalBbsTable;\r | |
770 | UINTN Index;\r | |
771 | UINTN Index2;\r | |
772 | UINTN *Idx;\r | |
773 | UINTN FDCount;\r | |
774 | UINTN HDCount;\r | |
775 | UINTN CDCount;\r | |
776 | UINTN NETCount;\r | |
777 | UINTN BEVCount;\r | |
778 | UINTN TotalSize;\r | |
779 | UINTN HeaderSize;\r | |
780 | UINT16 *NewFDPtr;\r | |
781 | UINT16 *NewHDPtr;\r | |
782 | UINT16 *NewCDPtr;\r | |
783 | UINT16 *NewNETPtr;\r | |
784 | UINT16 *NewBEVPtr;\r | |
785 | UINT16 *NewDevPtr;\r | |
786 | UINTN FDIndex;\r | |
787 | UINTN HDIndex;\r | |
788 | UINTN CDIndex;\r | |
789 | UINTN NETIndex;\r | |
790 | UINTN BEVIndex;\r | |
791 | \r | |
792 | Idx = NULL;\r | |
793 | FDCount = 0;\r | |
794 | HDCount = 0;\r | |
795 | CDCount = 0;\r | |
796 | NETCount = 0;\r | |
797 | BEVCount = 0;\r | |
798 | TotalSize = 0;\r | |
799 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r | |
800 | FDIndex = 0;\r | |
801 | HDIndex = 0;\r | |
802 | CDIndex = 0;\r | |
803 | NETIndex = 0;\r | |
804 | BEVIndex = 0;\r | |
805 | NewDevPtr = NULL;\r | |
806 | \r | |
807 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
808 | if (EFI_ERROR (Status)) {\r | |
809 | return Status;\r | |
810 | }\r | |
811 | \r | |
812 | Status = LegacyBios->GetBbsInfo (\r | |
813 | LegacyBios,\r | |
814 | &HddCount,\r | |
815 | &LocalHddInfo,\r | |
816 | &BbsCount,\r | |
817 | &LocalBbsTable\r | |
818 | );\r | |
819 | if (EFI_ERROR (Status)) {\r | |
820 | return Status;\r | |
821 | }\r | |
822 | \r | |
823 | GetVariable2 (VAR_LEGACY_DEV_ORDER, &gEfiLegacyDevOrderVariableGuid, (VOID **) &DevOrder, NULL);\r | |
824 | if (NULL == DevOrder) {\r | |
825 | return LegacyBmCreateDevOrder (LocalBbsTable, BbsCount);\r | |
826 | }\r | |
827 | //\r | |
828 | // First we figure out how many boot devices with same device type respectively\r | |
829 | //\r | |
830 | for (Index = 0; Index < BbsCount; Index++) {\r | |
831 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
832 | continue;\r | |
833 | }\r | |
834 | \r | |
835 | switch (LocalBbsTable[Index].DeviceType) {\r | |
836 | case BBS_FLOPPY:\r | |
837 | FDCount++;\r | |
838 | break;\r | |
839 | \r | |
840 | case BBS_HARDDISK:\r | |
841 | HDCount++;\r | |
842 | break;\r | |
843 | \r | |
844 | case BBS_CDROM:\r | |
845 | CDCount++;\r | |
846 | break;\r | |
847 | \r | |
848 | case BBS_EMBED_NETWORK:\r | |
849 | NETCount++;\r | |
850 | break;\r | |
851 | \r | |
852 | case BBS_BEV_DEVICE:\r | |
853 | BEVCount++;\r | |
854 | break;\r | |
855 | \r | |
856 | default:\r | |
857 | break;\r | |
858 | }\r | |
859 | }\r | |
860 | \r | |
861 | TotalSize += (HeaderSize + FDCount * sizeof (UINT16));\r | |
862 | TotalSize += (HeaderSize + HDCount * sizeof (UINT16));\r | |
863 | TotalSize += (HeaderSize + CDCount * sizeof (UINT16));\r | |
864 | TotalSize += (HeaderSize + NETCount * sizeof (UINT16));\r | |
865 | TotalSize += (HeaderSize + BEVCount * sizeof (UINT16));\r | |
866 | \r | |
867 | NewDevOrder = AllocateZeroPool (TotalSize);\r | |
868 | if (NULL == NewDevOrder) {\r | |
869 | return EFI_OUT_OF_RESOURCES;\r | |
870 | }\r | |
871 | \r | |
872 | //\r | |
873 | // copy FD\r | |
874 | //\r | |
875 | Ptr = DevOrder;\r | |
876 | NewPtr = NewDevOrder;\r | |
877 | NewPtr->BbsType = Ptr->BbsType;\r | |
878 | NewPtr->Length = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));\r | |
879 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
880 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
881 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_FLOPPY\r | |
882 | ) {\r | |
883 | continue;\r | |
884 | }\r | |
885 | \r | |
886 | NewPtr->Data[FDIndex] = Ptr->Data[Index];\r | |
887 | FDIndex++;\r | |
888 | }\r | |
889 | NewFDPtr = NewPtr->Data;\r | |
890 | \r | |
891 | //\r | |
892 | // copy HD\r | |
893 | //\r | |
894 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
895 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
896 | NewPtr->BbsType = Ptr->BbsType;\r | |
897 | NewPtr->Length = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r | |
898 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
899 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
900 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_HARDDISK\r | |
901 | ) {\r | |
902 | continue;\r | |
903 | }\r | |
904 | \r | |
905 | NewPtr->Data[HDIndex] = Ptr->Data[Index];\r | |
906 | HDIndex++;\r | |
907 | }\r | |
908 | NewHDPtr = NewPtr->Data;\r | |
909 | \r | |
910 | //\r | |
911 | // copy CD\r | |
912 | //\r | |
913 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
914 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
915 | NewPtr->BbsType = Ptr->BbsType;\r | |
916 | NewPtr->Length = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r | |
917 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
918 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
919 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_CDROM\r | |
920 | ) {\r | |
921 | continue;\r | |
922 | }\r | |
923 | \r | |
924 | NewPtr->Data[CDIndex] = Ptr->Data[Index];\r | |
925 | CDIndex++;\r | |
926 | }\r | |
927 | NewCDPtr = NewPtr->Data;\r | |
928 | \r | |
929 | //\r | |
930 | // copy NET\r | |
931 | //\r | |
932 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
933 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
934 | NewPtr->BbsType = Ptr->BbsType;\r | |
935 | NewPtr->Length = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r | |
936 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
937 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
938 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_EMBED_NETWORK\r | |
939 | ) {\r | |
940 | continue;\r | |
941 | }\r | |
942 | \r | |
943 | NewPtr->Data[NETIndex] = Ptr->Data[Index];\r | |
944 | NETIndex++;\r | |
945 | }\r | |
946 | NewNETPtr = NewPtr->Data;\r | |
947 | \r | |
948 | //\r | |
949 | // copy BEV\r | |
950 | //\r | |
951 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
952 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
953 | NewPtr->BbsType = Ptr->BbsType;\r | |
954 | NewPtr->Length = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r | |
955 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
956 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
957 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_BEV_DEVICE\r | |
958 | ) {\r | |
959 | continue;\r | |
960 | }\r | |
961 | \r | |
962 | NewPtr->Data[BEVIndex] = Ptr->Data[Index];\r | |
963 | BEVIndex++;\r | |
964 | }\r | |
965 | NewBEVPtr = NewPtr->Data;\r | |
966 | \r | |
967 | for (Index = 0; Index < BbsCount; Index++) {\r | |
968 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
969 | continue;\r | |
970 | }\r | |
971 | \r | |
972 | switch (LocalBbsTable[Index].DeviceType) {\r | |
973 | case BBS_FLOPPY:\r | |
974 | Idx = &FDIndex;\r | |
975 | NewDevPtr = NewFDPtr;\r | |
976 | break;\r | |
977 | \r | |
978 | case BBS_HARDDISK:\r | |
979 | Idx = &HDIndex;\r | |
980 | NewDevPtr = NewHDPtr;\r | |
981 | break;\r | |
982 | \r | |
983 | case BBS_CDROM:\r | |
984 | Idx = &CDIndex;\r | |
985 | NewDevPtr = NewCDPtr;\r | |
986 | break;\r | |
987 | \r | |
988 | case BBS_EMBED_NETWORK:\r | |
989 | Idx = &NETIndex;\r | |
990 | NewDevPtr = NewNETPtr;\r | |
991 | break;\r | |
992 | \r | |
993 | case BBS_BEV_DEVICE:\r | |
994 | Idx = &BEVIndex;\r | |
995 | NewDevPtr = NewBEVPtr;\r | |
996 | break;\r | |
997 | \r | |
998 | default:\r | |
999 | Idx = NULL;\r | |
1000 | break;\r | |
1001 | }\r | |
1002 | //\r | |
1003 | // at this point we have copied those valid indexes to new buffer\r | |
1004 | // and we should check if there is any new appeared boot device\r | |
1005 | //\r | |
1006 | if (Idx != NULL) {\r | |
1007 | for (Index2 = 0; Index2 < *Idx; Index2++) {\r | |
1008 | if ((NewDevPtr[Index2] & 0xFF) == (UINT16) Index) {\r | |
1009 | break;\r | |
1010 | }\r | |
1011 | }\r | |
1012 | \r | |
1013 | if (Index2 == *Idx) {\r | |
1014 | //\r | |
1015 | // Index2 == *Idx means we didn't find Index\r | |
1016 | // so Index is a new appeared device's index in BBS table\r | |
1017 | // insert it before disabled indexes.\r | |
1018 | //\r | |
1019 | for (Index2 = 0; Index2 < *Idx; Index2++) {\r | |
1020 | if ((NewDevPtr[Index2] & 0xFF00) == 0xFF00) {\r | |
1021 | break;\r | |
1022 | }\r | |
1023 | }\r | |
1024 | CopyMem (&NewDevPtr[Index2 + 1], &NewDevPtr[Index2], (*Idx - Index2) * sizeof (UINT16));\r | |
1025 | NewDevPtr[Index2] = (UINT16) (Index & 0xFF);\r | |
1026 | (*Idx)++;\r | |
1027 | }\r | |
1028 | }\r | |
1029 | }\r | |
1030 | \r | |
1031 | FreePool (DevOrder);\r | |
1032 | \r | |
1033 | Status = gRT->SetVariable (\r | |
1034 | VAR_LEGACY_DEV_ORDER,\r | |
1035 | &gEfiLegacyDevOrderVariableGuid,\r | |
1036 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
1037 | TotalSize,\r | |
1038 | NewDevOrder\r | |
1039 | );\r | |
1040 | FreePool (NewDevOrder);\r | |
1041 | \r | |
1042 | return Status;\r | |
1043 | }\r | |
1044 | \r | |
1045 | /**\r | |
1046 | Set Boot Priority for specified device type.\r | |
1047 | \r | |
1048 | @param DeviceType The device type.\r | |
1049 | @param BbsIndex The BBS index to set the highest priority. Ignore when -1.\r | |
1050 | @param LocalBbsTable The BBS table.\r | |
1051 | @param Priority The prority table.\r | |
1052 | \r | |
1053 | @retval EFI_SUCCESS The function completes successfully.\r | |
1054 | @retval EFI_NOT_FOUND Failed to find device.\r | |
1055 | @retval EFI_OUT_OF_RESOURCES Failed to get the efi variable of device order.\r | |
1056 | \r | |
1057 | **/\r | |
1058 | EFI_STATUS\r | |
1059 | LegacyBmSetPriorityForSameTypeDev (\r | |
1060 | IN UINT16 DeviceType,\r | |
1061 | IN UINTN BbsIndex,\r | |
1062 | IN OUT BBS_TABLE *LocalBbsTable,\r | |
1063 | IN OUT UINT16 *Priority\r | |
1064 | )\r | |
1065 | {\r | |
1066 | LEGACY_DEV_ORDER_ENTRY *DevOrder;\r | |
1067 | LEGACY_DEV_ORDER_ENTRY *DevOrderPtr;\r | |
1068 | UINTN DevOrderSize;\r | |
1069 | UINTN Index;\r | |
1070 | \r | |
1071 | GetVariable2 (VAR_LEGACY_DEV_ORDER, &gEfiLegacyDevOrderVariableGuid, (VOID **) &DevOrder, &DevOrderSize);\r | |
1072 | if (NULL == DevOrder) {\r | |
1073 | return EFI_OUT_OF_RESOURCES;\r | |
1074 | }\r | |
1075 | \r | |
1076 | DevOrderPtr = DevOrder;\r | |
1077 | while ((UINT8 *) DevOrderPtr < (UINT8 *) DevOrder + DevOrderSize) {\r | |
1078 | if (DevOrderPtr->BbsType == DeviceType) {\r | |
1079 | break;\r | |
1080 | }\r | |
1081 | \r | |
1082 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) ((UINTN) DevOrderPtr + sizeof (BBS_TYPE) + DevOrderPtr->Length);\r | |
1083 | }\r | |
1084 | \r | |
1085 | if ((UINT8 *) DevOrderPtr >= (UINT8 *) DevOrder + DevOrderSize) {\r | |
1086 | FreePool (DevOrder);\r | |
1087 | return EFI_NOT_FOUND;\r | |
1088 | }\r | |
1089 | \r | |
1090 | if (BbsIndex != (UINTN) -1) {\r | |
1091 | //\r | |
1092 | // In case the BBS entry isn't valid because devices were plugged or removed.\r | |
1093 | //\r | |
1094 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[BbsIndex]) || (LocalBbsTable[BbsIndex].DeviceType != DeviceType)) {\r | |
1095 | FreePool (DevOrder);\r | |
1096 | return EFI_NOT_FOUND;\r | |
1097 | }\r | |
1098 | LocalBbsTable[BbsIndex].BootPriority = *Priority;\r | |
1099 | (*Priority)++;\r | |
1100 | }\r | |
1101 | //\r | |
1102 | // If the high byte of the DevIndex is 0xFF, it indicates that this device has been disabled.\r | |
1103 | //\r | |
1104 | for (Index = 0; Index < DevOrderPtr->Length / sizeof (UINT16) - 1; Index++) {\r | |
1105 | if ((DevOrderPtr->Data[Index] & 0xFF00) == 0xFF00) {\r | |
1106 | //\r | |
1107 | // LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = BBS_DISABLED_ENTRY;\r | |
1108 | //\r | |
1109 | } else if (DevOrderPtr->Data[Index] != BbsIndex) {\r | |
1110 | LocalBbsTable[DevOrderPtr->Data[Index]].BootPriority = *Priority;\r | |
1111 | (*Priority)++;\r | |
1112 | }\r | |
1113 | }\r | |
1114 | \r | |
1115 | FreePool (DevOrder);\r | |
1116 | return EFI_SUCCESS;\r | |
1117 | }\r | |
1118 | \r | |
1119 | /**\r | |
1120 | Print the BBS Table.\r | |
1121 | \r | |
1122 | @param LocalBbsTable The BBS table.\r | |
1123 | @param BbsCount The count of entry in BBS table.\r | |
1124 | **/\r | |
1125 | VOID\r | |
1126 | LegacyBmPrintBbsTable (\r | |
1127 | IN BBS_TABLE *LocalBbsTable,\r | |
1128 | IN UINT16 BbsCount\r | |
1129 | )\r | |
1130 | {\r | |
1131 | UINT16 Index;\r | |
1132 | \r | |
1133 | DEBUG ((DEBUG_INFO, "\n"));\r | |
1134 | DEBUG ((DEBUG_INFO, " NO Prio bb/dd/ff cl/sc Type Stat segm:offs\n"));\r | |
1135 | DEBUG ((DEBUG_INFO, "=============================================\n"));\r | |
1136 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1137 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
1138 | continue;\r | |
1139 | }\r | |
1140 | \r | |
1141 | DEBUG (\r | |
1142 | (DEBUG_INFO,\r | |
1143 | " %02x: %04x %02x/%02x/%02x %02x/%02x %04x %04x %04x:%04x\n",\r | |
1144 | (UINTN) Index,\r | |
1145 | (UINTN) LocalBbsTable[Index].BootPriority,\r | |
1146 | (UINTN) LocalBbsTable[Index].Bus,\r | |
1147 | (UINTN) LocalBbsTable[Index].Device,\r | |
1148 | (UINTN) LocalBbsTable[Index].Function,\r | |
1149 | (UINTN) LocalBbsTable[Index].Class,\r | |
1150 | (UINTN) LocalBbsTable[Index].SubClass,\r | |
1151 | (UINTN) LocalBbsTable[Index].DeviceType,\r | |
1152 | (UINTN) * (UINT16 *) &LocalBbsTable[Index].StatusFlags,\r | |
1153 | (UINTN) LocalBbsTable[Index].BootHandlerSegment,\r | |
1154 | (UINTN) LocalBbsTable[Index].BootHandlerOffset,\r | |
1155 | (UINTN) ((LocalBbsTable[Index].MfgStringSegment << 4) + LocalBbsTable[Index].MfgStringOffset),\r | |
1156 | (UINTN) ((LocalBbsTable[Index].DescStringSegment << 4) + LocalBbsTable[Index].DescStringOffset))\r | |
1157 | );\r | |
1158 | }\r | |
1159 | \r | |
1160 | DEBUG ((DEBUG_INFO, "\n"));\r | |
1161 | }\r | |
1162 | \r | |
1163 | /**\r | |
1164 | Set the boot priority for BBS entries based on boot option entry and boot order.\r | |
1165 | \r | |
1166 | @param BootOption The boot option is to be checked for refresh BBS table.\r | |
1167 | \r | |
1168 | @retval EFI_SUCCESS The boot priority for BBS entries is refreshed successfully.\r | |
1169 | @retval EFI_NOT_FOUND BBS entries can't be found.\r | |
1170 | @retval EFI_OUT_OF_RESOURCES Failed to get the legacy device boot order.\r | |
1171 | **/\r | |
1172 | EFI_STATUS\r | |
1173 | LegacyBmRefreshBbsTableForBoot (\r | |
1174 | IN EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
1175 | )\r | |
1176 | {\r | |
1177 | EFI_STATUS Status;\r | |
1178 | UINT16 BbsIndex;\r | |
1179 | UINT16 HddCount;\r | |
1180 | UINT16 BbsCount;\r | |
1181 | HDD_INFO *LocalHddInfo;\r | |
1182 | BBS_TABLE *LocalBbsTable;\r | |
1183 | UINT16 DevType;\r | |
1184 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1185 | UINTN Index;\r | |
1186 | UINT16 Priority;\r | |
1187 | UINT16 *DeviceType;\r | |
1188 | UINTN DeviceTypeCount;\r | |
1189 | UINTN DeviceTypeIndex;\r | |
1190 | EFI_BOOT_MANAGER_LOAD_OPTION *Option;\r | |
1191 | UINTN OptionCount;\r | |
1192 | \r | |
1193 | HddCount = 0;\r | |
1194 | BbsCount = 0;\r | |
1195 | LocalHddInfo = NULL;\r | |
1196 | LocalBbsTable = NULL;\r | |
1197 | DevType = BBS_UNKNOWN;\r | |
1198 | \r | |
1199 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1200 | if (EFI_ERROR (Status)) {\r | |
1201 | return Status;\r | |
1202 | }\r | |
1203 | \r | |
1204 | Status = LegacyBios->GetBbsInfo (\r | |
1205 | LegacyBios,\r | |
1206 | &HddCount,\r | |
1207 | &LocalHddInfo,\r | |
1208 | &BbsCount,\r | |
1209 | &LocalBbsTable\r | |
1210 | );\r | |
1211 | if (EFI_ERROR (Status)) {\r | |
1212 | return Status;\r | |
1213 | }\r | |
1214 | \r | |
1215 | //\r | |
1216 | // First, set all the present devices' boot priority to BBS_UNPRIORITIZED_ENTRY\r | |
1217 | // We will set them according to the settings setup by user\r | |
1218 | //\r | |
1219 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1220 | if (LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
1221 | LocalBbsTable[Index].BootPriority = BBS_UNPRIORITIZED_ENTRY;\r | |
1222 | }\r | |
1223 | }\r | |
1224 | //\r | |
1225 | // boot priority always starts at 0\r | |
1226 | //\r | |
1227 | Priority = 0; \r | |
1228 | if ((DevicePathType (BootOption->FilePath) == BBS_DEVICE_PATH) &&\r | |
1229 | (DevicePathSubType (BootOption->FilePath) == BBS_BBS_DP)) {\r | |
1230 | //\r | |
1231 | // If BootOption stands for a legacy boot option, we prioritize the devices with the same type first.\r | |
1232 | //\r | |
1233 | DevType = LegacyBmDeviceType (BootOption->FilePath);\r | |
1234 | BbsIndex = ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption->OptionalData)->BbsIndex;\r | |
1235 | Status = LegacyBmSetPriorityForSameTypeDev (\r | |
1236 | DevType,\r | |
1237 | BbsIndex,\r | |
1238 | LocalBbsTable,\r | |
1239 | &Priority\r | |
1240 | );\r | |
1241 | if (EFI_ERROR (Status)) {\r | |
1242 | return Status;\r | |
1243 | }\r | |
1244 | }\r | |
1245 | //\r | |
1246 | // we have to set the boot priority for other BBS entries with different device types\r | |
1247 | //\r | |
1248 | Option = EfiBootManagerGetLoadOptions (&OptionCount, LoadOptionTypeBoot);\r | |
1249 | DeviceType = AllocatePool (sizeof (UINT16) * OptionCount);\r | |
1250 | ASSERT (DeviceType != NULL);\r | |
1251 | DeviceType[0] = DevType;\r | |
1252 | DeviceTypeCount = 1;\r | |
1253 | for (Index = 0; Index < OptionCount; Index++) {\r | |
1254 | if ((DevicePathType (Option[Index].FilePath) != BBS_DEVICE_PATH) ||\r | |
1255 | (DevicePathSubType (Option[Index].FilePath) != BBS_BBS_DP)) {\r | |
1256 | continue;\r | |
1257 | }\r | |
1258 | \r | |
1259 | DevType = LegacyBmDeviceType (Option[Index].FilePath);\r | |
1260 | for (DeviceTypeIndex = 0; DeviceTypeIndex < DeviceTypeCount; DeviceTypeIndex++) {\r | |
1261 | if (DeviceType[DeviceTypeIndex] == DevType) {\r | |
1262 | break;\r | |
1263 | }\r | |
1264 | }\r | |
1265 | if (DeviceTypeIndex < DeviceTypeCount) {\r | |
1266 | //\r | |
1267 | // We don't want to process twice for a device type\r | |
1268 | //\r | |
1269 | continue;\r | |
1270 | }\r | |
1271 | \r | |
1272 | DeviceType[DeviceTypeCount] = DevType;\r | |
1273 | DeviceTypeCount++;\r | |
1274 | \r | |
1275 | Status = LegacyBmSetPriorityForSameTypeDev (\r | |
1276 | DevType,\r | |
1277 | (UINTN) -1,\r | |
1278 | LocalBbsTable,\r | |
1279 | &Priority\r | |
1280 | );\r | |
1281 | }\r | |
1282 | EfiBootManagerFreeLoadOptions (Option, OptionCount);\r | |
1283 | \r | |
1284 | DEBUG_CODE_BEGIN();\r | |
1285 | LegacyBmPrintBbsTable (LocalBbsTable, BbsCount);\r | |
1286 | DEBUG_CODE_END();\r | |
1287 | \r | |
1288 | return Status;\r | |
1289 | }\r | |
1290 | \r | |
1291 | \r | |
1292 | /**\r | |
1293 | Boot the legacy system with the boot option.\r | |
1294 | \r | |
1295 | @param BootOption The legacy boot option which have BBS device path\r | |
1296 | On return, BootOption->Status contains the boot status.\r | |
1297 | EFI_UNSUPPORTED There is no legacybios protocol, do not support\r | |
1298 | legacy boot.\r | |
1299 | EFI_STATUS The status of LegacyBios->LegacyBoot ().\r | |
1300 | **/\r | |
1301 | VOID\r | |
1302 | EFIAPI\r | |
1303 | LegacyBmBoot (\r | |
1304 | IN EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
1305 | )\r | |
1306 | {\r | |
1307 | EFI_STATUS Status;\r | |
1308 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1309 | \r | |
1310 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1311 | if (EFI_ERROR (Status)) {\r | |
1312 | //\r | |
1313 | // If no LegacyBios protocol we do not support legacy boot\r | |
1314 | //\r | |
1315 | BootOption->Status = EFI_UNSUPPORTED;\r | |
1316 | return;\r | |
1317 | }\r | |
1318 | //\r | |
1319 | // Notes: if we separate the int 19, then we don't need to refresh BBS\r | |
1320 | //\r | |
1321 | Status = LegacyBmRefreshBbsTableForBoot (BootOption);\r | |
1322 | if (EFI_ERROR (Status)) {\r | |
1323 | BootOption->Status = Status;\r | |
1324 | return;\r | |
1325 | }\r | |
1326 | \r | |
1327 | BootOption->Status = LegacyBios->LegacyBoot (\r | |
1328 | LegacyBios,\r | |
1329 | (BBS_BBS_DEVICE_PATH *) BootOption->FilePath,\r | |
1330 | BootOption->OptionalDataSize,\r | |
1331 | BootOption->OptionalData\r | |
1332 | );\r | |
1333 | }\r | |
1334 | \r | |
1335 | /**\r | |
1336 | This function enumerates all the legacy boot options.\r | |
1337 | \r | |
1338 | @param BootOptionCount Return the legacy boot option count.\r | |
1339 | \r | |
1340 | @retval Pointer to the legacy boot option buffer.\r | |
1341 | **/\r | |
1342 | EFI_BOOT_MANAGER_LOAD_OPTION *\r | |
1343 | LegacyBmEnumerateAllBootOptions (\r | |
1344 | UINTN *BootOptionCount\r | |
1345 | )\r | |
1346 | {\r | |
1347 | EFI_STATUS Status;\r | |
1348 | UINT16 HddCount;\r | |
1349 | UINT16 BbsCount;\r | |
1350 | HDD_INFO *HddInfo;\r | |
1351 | BBS_TABLE *BbsTable;\r | |
1352 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1353 | UINT16 Index;\r | |
1354 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
1355 | \r | |
1356 | ASSERT (BootOptionCount != NULL);\r | |
1357 | \r | |
1358 | BootOptions = NULL;\r | |
1359 | *BootOptionCount = 0;\r | |
1360 | BbsCount = 0;\r | |
1361 | \r | |
1362 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1363 | if (EFI_ERROR (Status)) {\r | |
1364 | return NULL;\r | |
1365 | }\r | |
1366 | \r | |
1367 | Status = LegacyBios->GetBbsInfo (\r | |
1368 | LegacyBios,\r | |
1369 | &HddCount,\r | |
1370 | &HddInfo,\r | |
1371 | &BbsCount,\r | |
1372 | &BbsTable\r | |
1373 | );\r | |
1374 | if (EFI_ERROR (Status)) {\r | |
1375 | return NULL;\r | |
1376 | }\r | |
1377 | \r | |
1378 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1379 | if (!LegacyBmValidBbsEntry (&BbsTable[Index])) {\r | |
1380 | continue;\r | |
1381 | }\r | |
1382 | \r | |
1383 | BootOptions = ReallocatePool (\r | |
1384 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
1385 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
1386 | BootOptions\r | |
1387 | );\r | |
1388 | ASSERT (BootOptions != NULL);\r | |
1389 | \r | |
1390 | Status = LegacyBmCreateLegacyBootOption (&BootOptions[(*BootOptionCount)++], &BbsTable[Index], Index);\r | |
1391 | ASSERT_EFI_ERROR (Status);\r | |
1392 | }\r | |
1393 | \r | |
1394 | return BootOptions;\r | |
1395 | }\r | |
1396 | \r | |
1397 | /**\r | |
1398 | Return the index of the boot option in the boot option array.\r | |
1399 | \r | |
1400 | The function compares the Description, FilePath, OptionalData.\r | |
1401 | \r | |
1402 | @param Key The input boot option which is compared with.\r | |
1403 | @param Array The input boot option array.\r | |
1404 | @param Count The count of the input boot options.\r | |
1405 | \r | |
1406 | @retval The index of the input boot option in the array.\r | |
1407 | \r | |
1408 | **/\r | |
1409 | INTN\r | |
1410 | LegacyBmFindBootOption (\r | |
1411 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Key,\r | |
1412 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Array,\r | |
1413 | IN UINTN Count\r | |
1414 | )\r | |
1415 | {\r | |
1416 | UINTN Index;\r | |
1417 | \r | |
1418 | for (Index = 0; Index < Count; Index++) {\r | |
1419 | if ((StrCmp (Key->Description, Array[Index].Description) == 0) &&\r | |
1420 | (CompareMem (Key->FilePath, Array[Index].FilePath, GetDevicePathSize (Key->FilePath)) == 0) &&\r | |
1421 | (Key->OptionalDataSize == Array[Index].OptionalDataSize) &&\r | |
1422 | (CompareMem (Key->OptionalData, Array[Index].OptionalData, Key->OptionalDataSize) == 0)) {\r | |
1423 | return (INTN) Index;\r | |
1424 | }\r | |
1425 | }\r | |
1426 | \r | |
1427 | return -1;\r | |
1428 | }\r | |
1429 | \r | |
1430 | /**\r | |
1431 | Refresh all legacy boot options.\r | |
1432 | \r | |
1433 | **/\r | |
1434 | VOID\r | |
1435 | EFIAPI\r | |
1436 | LegacyBmRefreshAllBootOption (\r | |
1437 | VOID\r | |
1438 | )\r | |
1439 | {\r | |
1440 | EFI_STATUS Status;\r | |
1441 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1442 | UINTN RootBridgeHandleCount;\r | |
1443 | EFI_HANDLE *RootBridgeHandleBuffer;\r | |
1444 | UINTN HandleCount;\r | |
1445 | EFI_HANDLE *HandleBuffer;\r | |
1446 | UINTN RootBridgeIndex;\r | |
1447 | UINTN Index;\r | |
1448 | UINTN Flags;\r | |
1449 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
1450 | UINTN BootOptionCount;\r | |
1451 | EFI_BOOT_MANAGER_LOAD_OPTION *ExistingBootOptions;\r | |
1452 | UINTN ExistingBootOptionCount;\r | |
1453 | \r | |
1454 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1455 | if (EFI_ERROR (Status)) {\r | |
1456 | LegacyBmDeleteAllBootOptions ();\r | |
1457 | return;\r | |
1458 | }\r | |
1459 | PERF_START (NULL, "LegacyBootOptionEnum", "BDS", 0);\r | |
1460 | \r | |
1461 | //\r | |
1462 | // Before enumerating the legacy boot option, we need to dispatch all the legacy option roms \r | |
1463 | // to ensure the GetBbsInfo() counts all the legacy devices.\r | |
1464 | //\r | |
1465 | gBS->LocateHandleBuffer (\r | |
1466 | ByProtocol,\r | |
1467 | &gEfiPciRootBridgeIoProtocolGuid,\r | |
1468 | NULL,\r | |
1469 | &RootBridgeHandleCount,\r | |
1470 | &RootBridgeHandleBuffer\r | |
1471 | );\r | |
1472 | for (RootBridgeIndex = 0; RootBridgeIndex < RootBridgeHandleCount; RootBridgeIndex++) {\r | |
1473 | gBS->ConnectController (RootBridgeHandleBuffer[RootBridgeIndex], NULL, NULL, FALSE);\r | |
1474 | gBS->LocateHandleBuffer (\r | |
1475 | ByProtocol,\r | |
1476 | &gEfiPciIoProtocolGuid,\r | |
1477 | NULL,\r | |
1478 | &HandleCount,\r | |
1479 | &HandleBuffer\r | |
1480 | );\r | |
1481 | for (Index = 0; Index < HandleCount; Index++) {\r | |
1482 | //\r | |
1483 | // Start the thunk driver so that the legacy option rom gets dispatched.\r | |
1484 | // Note: We don't directly call InstallPciRom because some thunk drivers \r | |
1485 | // (e.g. BlockIo thunk driver) depend on the immediate result after dispatching\r | |
1486 | //\r | |
1487 | Status = LegacyBios->CheckPciRom (\r | |
1488 | LegacyBios,\r | |
1489 | HandleBuffer[Index],\r | |
1490 | NULL,\r | |
1491 | NULL,\r | |
1492 | &Flags\r | |
1493 | );\r | |
1494 | if (!EFI_ERROR (Status)) {\r | |
1495 | gBS->ConnectController (HandleBuffer[Index], NULL, NULL, FALSE);\r | |
1496 | }\r | |
1497 | }\r | |
1498 | }\r | |
1499 | \r | |
1500 | //\r | |
1501 | // Same algorithm pattern as the EfiBootManagerRefreshAllBootOption\r | |
1502 | // Firstly delete the invalid legacy boot options,\r | |
1503 | // then enumreate and save the newly appeared legacy boot options\r | |
1504 | // the last step is legacy boot option special action to refresh the LegacyDevOrder variable\r | |
1505 | //\r | |
1506 | LegacyBmDeleteAllInvalidBootOptions ();\r | |
1507 | \r | |
1508 | ExistingBootOptions = EfiBootManagerGetLoadOptions (&ExistingBootOptionCount, LoadOptionTypeBoot);\r | |
1509 | BootOptions = LegacyBmEnumerateAllBootOptions (&BootOptionCount);\r | |
1510 | \r | |
1511 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
1512 | if (LegacyBmFindBootOption (&BootOptions[Index], ExistingBootOptions, ExistingBootOptionCount) == -1) {\r | |
1513 | Status = EfiBootManagerAddLoadOptionVariable (&BootOptions[Index], (UINTN) -1);\r | |
1514 | DEBUG ((\r | |
1515 | EFI_D_INFO, "[LegacyBds] New Boot Option: Boot%04x Bbs0x%04x %s %r\n",\r | |
1516 | (UINTN) BootOptions[Index].OptionNumber,\r | |
1517 | (UINTN) ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOptions[Index].OptionalData)->BbsIndex,\r | |
1518 | BootOptions[Index].Description,\r | |
1519 | Status\r | |
1520 | ));\r | |
1521 | //\r | |
1522 | // Continue upon failure to add boot option.\r | |
1523 | //\r | |
1524 | }\r | |
1525 | }\r | |
1526 | \r | |
1527 | EfiBootManagerFreeLoadOptions (ExistingBootOptions, ExistingBootOptionCount);\r | |
1528 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
1529 | \r | |
1530 | //\r | |
1531 | // Failure to create LegacyDevOrder variable only impacts the boot order.\r | |
1532 | //\r | |
1533 | LegacyBmUpdateDevOrder ();\r | |
1534 | \r | |
1535 | PERF_END (NULL, "LegacyBootOptionEnum", "BDS", 0);\r | |
1536 | }\r |