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b522c77b HW |
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 | |
6 | Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
8 | \r | |
9 | **/\r | |
10 | \r | |
11 | #include "InternalLegacyBm.h"\r | |
12 | \r | |
13 | #define LEGACY_BM_BOOT_DESCRIPTION_LENGTH 32\r | |
14 | \r | |
15 | /**\r | |
16 | Initialize legacy boot manager library by call EfiBootManagerRegisterLegacyBootSupport\r | |
17 | function to export two function pointer.\r | |
18 | \r | |
19 | @param ImageHandle The image handle.\r | |
20 | @param SystemTable The system table.\r | |
21 | \r | |
22 | @retval EFI_SUCCESS The legacy boot manager library is initialized correctly.\r | |
23 | @return Other value if failed to initialize the legacy boot manager library.\r | |
24 | **/\r | |
25 | EFI_STATUS\r | |
26 | EFIAPI\r | |
27 | LegacyBootManagerLibConstructor (\r | |
28 | IN EFI_HANDLE ImageHandle,\r | |
29 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
30 | )\r | |
31 | {\r | |
32 | EfiBootManagerRegisterLegacyBootSupport (\r | |
33 | LegacyBmRefreshAllBootOption,\r | |
34 | LegacyBmBoot\r | |
35 | );\r | |
36 | return EFI_SUCCESS;\r | |
37 | }\r | |
38 | \r | |
39 | /**\r | |
40 | Get the device type from the input legacy device path.\r | |
41 | \r | |
42 | @param DevicePath The legacy device path.\r | |
43 | \r | |
44 | @retval The legacy device type.\r | |
45 | **/\r | |
46 | UINT16\r | |
47 | LegacyBmDeviceType (\r | |
48 | EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
49 | )\r | |
50 | {\r | |
51 | ASSERT ((DevicePathType (DevicePath) == BBS_DEVICE_PATH) &&\r | |
52 | (DevicePathSubType (DevicePath) == BBS_BBS_DP));\r | |
53 | return ((BBS_BBS_DEVICE_PATH *) DevicePath)->DeviceType;\r | |
54 | }\r | |
55 | \r | |
56 | /**\r | |
57 | Validate the BbsEntry base on the Boot Priority info in the BbsEntry.\r | |
58 | \r | |
59 | @param BbsEntry The input bbs entry info.\r | |
60 | \r | |
61 | @retval TRUE The BbsEntry is valid.\r | |
62 | @retval FALSE The BbsEntry is invalid.\r | |
63 | **/\r | |
64 | BOOLEAN\r | |
65 | LegacyBmValidBbsEntry (\r | |
66 | IN BBS_TABLE *BbsEntry\r | |
67 | )\r | |
68 | {\r | |
69 | switch (BbsEntry->BootPriority) {\r | |
70 | case BBS_IGNORE_ENTRY:\r | |
71 | case BBS_DO_NOT_BOOT_FROM:\r | |
72 | case BBS_LOWEST_PRIORITY:\r | |
73 | return FALSE;\r | |
74 | default:\r | |
75 | return TRUE;\r | |
76 | }\r | |
77 | }\r | |
78 | \r | |
79 | /**\r | |
80 | Build Legacy Device Name String according.\r | |
81 | \r | |
82 | @param CurBBSEntry BBS Table.\r | |
83 | @param Index Index.\r | |
84 | @param BufSize The buffer size.\r | |
85 | @param BootString The output string.\r | |
86 | \r | |
87 | **/\r | |
88 | VOID\r | |
89 | LegacyBmBuildLegacyDevNameString (\r | |
90 | IN BBS_TABLE *CurBBSEntry,\r | |
91 | IN UINTN Index,\r | |
92 | IN UINTN BufSize,\r | |
93 | OUT CHAR16 *BootString\r | |
94 | )\r | |
95 | {\r | |
96 | CHAR16 *Fmt;\r | |
97 | CHAR16 *Type;\r | |
98 | CHAR8 *StringDesc;\r | |
99 | CHAR8 StringBufferA[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
100 | CHAR16 StringBufferU[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
101 | \r | |
102 | switch (Index) {\r | |
103 | //\r | |
104 | // Primary Master\r | |
105 | //\r | |
106 | case 1:\r | |
107 | Fmt = L"Primary Master %s";\r | |
108 | break;\r | |
109 | \r | |
110 | //\r | |
111 | // Primary Slave\r | |
112 | //\r | |
113 | case 2:\r | |
114 | Fmt = L"Primary Slave %s";\r | |
115 | break;\r | |
116 | \r | |
117 | //\r | |
118 | // Secondary Master\r | |
119 | //\r | |
120 | case 3:\r | |
121 | Fmt = L"Secondary Master %s";\r | |
122 | break;\r | |
123 | \r | |
124 | //\r | |
125 | // Secondary Slave\r | |
126 | //\r | |
127 | case 4:\r | |
128 | Fmt = L"Secondary Slave %s";\r | |
129 | break;\r | |
130 | \r | |
131 | default:\r | |
132 | Fmt = L"%s";\r | |
133 | break;\r | |
134 | }\r | |
135 | \r | |
136 | switch (CurBBSEntry->DeviceType) {\r | |
137 | case BBS_FLOPPY:\r | |
138 | Type = L"Floppy";\r | |
139 | break;\r | |
140 | \r | |
141 | case BBS_HARDDISK:\r | |
142 | Type = L"Harddisk";\r | |
143 | break;\r | |
144 | \r | |
145 | case BBS_CDROM:\r | |
146 | Type = L"CDROM";\r | |
147 | break;\r | |
148 | \r | |
149 | case BBS_PCMCIA:\r | |
150 | Type = L"PCMCIAe";\r | |
151 | break;\r | |
152 | \r | |
153 | case BBS_USB:\r | |
154 | Type = L"USB";\r | |
155 | break;\r | |
156 | \r | |
157 | case BBS_EMBED_NETWORK:\r | |
158 | Type = L"Network";\r | |
159 | break;\r | |
160 | \r | |
161 | case BBS_BEV_DEVICE:\r | |
162 | Type = L"BEVe";\r | |
163 | break;\r | |
164 | \r | |
165 | case BBS_UNKNOWN:\r | |
166 | default:\r | |
167 | Type = L"Unknown";\r | |
168 | break;\r | |
169 | }\r | |
170 | //\r | |
171 | // If current BBS entry has its description then use it.\r | |
172 | //\r | |
173 | StringDesc = (CHAR8 *) (((UINTN) CurBBSEntry->DescStringSegment << 4) + CurBBSEntry->DescStringOffset);\r | |
174 | if (NULL != StringDesc) {\r | |
175 | //\r | |
48cf40b8 | 176 | // Only get first 32 characters, this is suggested by BBS spec\r |
b522c77b HW |
177 | //\r |
178 | CopyMem (StringBufferA, StringDesc, LEGACY_BM_BOOT_DESCRIPTION_LENGTH);\r | |
179 | StringBufferA[LEGACY_BM_BOOT_DESCRIPTION_LENGTH] = 0;\r | |
180 | AsciiStrToUnicodeStrS (StringBufferA, StringBufferU, ARRAY_SIZE (StringBufferU));\r | |
181 | Fmt = L"%s";\r | |
182 | Type = StringBufferU;\r | |
183 | }\r | |
184 | \r | |
185 | //\r | |
186 | // BbsTable 16 entries are for onboard IDE.\r | |
187 | // Set description string for SATA harddisks, Harddisk 0 ~ Harddisk 11\r | |
188 | //\r | |
189 | if (Index >= 5 && Index <= 16 && (CurBBSEntry->DeviceType == BBS_HARDDISK || CurBBSEntry->DeviceType == BBS_CDROM)) {\r | |
190 | Fmt = L"%s %d";\r | |
191 | UnicodeSPrint (BootString, BufSize, Fmt, Type, Index - 5);\r | |
192 | } else {\r | |
193 | UnicodeSPrint (BootString, BufSize, Fmt, Type);\r | |
194 | }\r | |
195 | }\r | |
196 | \r | |
197 | /**\r | |
198 | Get the Bbs index for the input boot option.\r | |
199 | \r | |
200 | @param BootOption The input boot option info.\r | |
201 | @param BbsTable The input Bbs table.\r | |
202 | @param BbsCount The input total bbs entry number.\r | |
203 | @param BbsIndexUsed The array shows how many BBS table indexs have been used.\r | |
204 | \r | |
205 | @retval The index for the input boot option.\r | |
206 | **/\r | |
207 | UINT16\r | |
208 | LegacyBmFuzzyMatch (\r | |
209 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption,\r | |
210 | BBS_TABLE *BbsTable,\r | |
211 | UINT16 BbsCount,\r | |
212 | BOOLEAN *BbsIndexUsed\r | |
213 | )\r | |
214 | {\r | |
215 | UINT16 Index;\r | |
216 | LEGACY_BM_BOOT_OPTION_BBS_DATA *BbsData;\r | |
217 | CHAR16 Description[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
218 | \r | |
219 | BbsData = (LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption->OptionalData;\r | |
220 | \r | |
221 | //\r | |
222 | // Directly check the BBS index stored in BootOption\r | |
223 | //\r | |
224 | if ((BbsData->BbsIndex < BbsCount) &&\r | |
225 | (LegacyBmDeviceType (BootOption->FilePath) == BbsTable[BbsData->BbsIndex].DeviceType)) {\r | |
226 | LegacyBmBuildLegacyDevNameString (\r | |
227 | &BbsTable[BbsData->BbsIndex],\r | |
228 | BbsData->BbsIndex,\r | |
229 | sizeof (Description),\r | |
230 | Description\r | |
231 | );\r | |
232 | if ((StrCmp (Description, BootOption->Description) == 0) && !BbsIndexUsed[BbsData->BbsIndex]) {\r | |
233 | //\r | |
234 | // If devices with the same description string are connected,\r | |
235 | // the BbsIndex of the first device is returned for the other device also.\r | |
236 | // So, check if the BbsIndex is already being used, before assigning the BbsIndex.\r | |
237 | //\r | |
238 | BbsIndexUsed[BbsData->BbsIndex] = TRUE;\r | |
239 | return BbsData->BbsIndex;\r | |
240 | }\r | |
241 | }\r | |
242 | \r | |
243 | //\r | |
244 | // BBS table could be changed (entry removed/moved)\r | |
245 | // find the correct BBS index\r | |
246 | //\r | |
247 | for (Index = 0; Index < BbsCount; Index++) {\r | |
248 | if (!LegacyBmValidBbsEntry (&BbsTable[Index]) ||\r | |
249 | (BbsTable[Index].DeviceType != LegacyBmDeviceType (BootOption->FilePath))) {\r | |
250 | continue;\r | |
251 | }\r | |
252 | \r | |
253 | LegacyBmBuildLegacyDevNameString (\r | |
254 | &BbsTable[Index],\r | |
255 | Index,\r | |
256 | sizeof (Description),\r | |
257 | Description\r | |
258 | );\r | |
259 | if ((StrCmp (Description, BootOption->Description) == 0) && !BbsIndexUsed[Index]) {\r | |
260 | //\r | |
261 | // If devices with the same description string are connected,\r | |
262 | // the BbsIndex of the first device is assigned for the other device also.\r | |
263 | // So, check if the BbsIndex is already being used, before assigning the corrected BbsIndex.\r | |
264 | //\r | |
265 | break;\r | |
266 | }\r | |
267 | }\r | |
268 | \r | |
269 | //\r | |
270 | // Add the corrected BbsIndex in the UsedBbsIndex Buffer\r | |
271 | //\r | |
272 | if (Index != BbsCount) {\r | |
273 | BbsIndexUsed[Index] = TRUE;\r | |
274 | }\r | |
275 | \r | |
276 | return Index;\r | |
277 | }\r | |
278 | \r | |
279 | /**\r | |
280 | \r | |
281 | Update legacy device order base on the input info.\r | |
282 | \r | |
283 | @param LegacyDevOrder Legacy device order data buffer.\r | |
284 | @param LegacyDevOrderSize Legacy device order data buffer size.\r | |
285 | @param DeviceType Device type which need to check.\r | |
286 | @param OldBbsIndex Old Bds Index.\r | |
287 | @param NewBbsIndex New Bds Index, if it is -1,means remove this option.\r | |
288 | \r | |
289 | **/\r | |
290 | VOID\r | |
291 | LegacyBmUpdateBbsIndex (\r | |
292 | LEGACY_DEV_ORDER_ENTRY *LegacyDevOrder,\r | |
293 | UINTN *LegacyDevOrderSize,\r | |
294 | UINT16 DeviceType,\r | |
295 | UINT16 OldBbsIndex,\r | |
296 | UINT16 NewBbsIndex // Delete entry if -1\r | |
297 | )\r | |
298 | {\r | |
299 | LEGACY_DEV_ORDER_ENTRY *Entry;\r | |
300 | UINTN Index;\r | |
301 | \r | |
302 | ASSERT (((LegacyDevOrder == NULL) && (*LegacyDevOrderSize == 0)) ||\r | |
303 | ((LegacyDevOrder != NULL) && (*LegacyDevOrderSize != 0))\r | |
304 | );\r | |
305 | \r | |
306 | for (Entry = LegacyDevOrder;\r | |
307 | Entry < (LEGACY_DEV_ORDER_ENTRY *) ((UINT8 *) LegacyDevOrder + *LegacyDevOrderSize);\r | |
308 | Entry = (LEGACY_DEV_ORDER_ENTRY *) ((UINTN) Entry + sizeof (BBS_TYPE) + Entry->Length)\r | |
309 | ) {\r | |
310 | if (Entry->BbsType == DeviceType) {\r | |
311 | for (Index = 0; Index < Entry->Length / sizeof (UINT16) - 1; Index++) {\r | |
312 | if (Entry->Data[Index] == OldBbsIndex) {\r | |
313 | if (NewBbsIndex == (UINT16) -1) {\r | |
314 | //\r | |
315 | // Delete the old entry\r | |
316 | //\r | |
317 | CopyMem (\r | |
318 | &Entry->Data[Index],\r | |
319 | &Entry->Data[Index + 1],\r | |
320 | (UINT8 *) LegacyDevOrder + *LegacyDevOrderSize - (UINT8 *) &Entry->Data[Index + 1]\r | |
321 | );\r | |
322 | Entry->Length -= sizeof (UINT16);\r | |
323 | *LegacyDevOrderSize -= sizeof(UINT16);\r | |
324 | } else {\r | |
325 | Entry->Data[Index] = NewBbsIndex;\r | |
326 | }\r | |
327 | break;\r | |
328 | }\r | |
329 | }\r | |
330 | break;\r | |
331 | }\r | |
332 | }\r | |
333 | }\r | |
334 | \r | |
335 | /**\r | |
336 | Delete all the legacy boot options.\r | |
337 | \r | |
338 | @retval EFI_SUCCESS All legacy boot options are deleted.\r | |
339 | **/\r | |
340 | EFI_STATUS\r | |
341 | LegacyBmDeleteAllBootOptions (\r | |
342 | VOID\r | |
343 | )\r | |
344 | {\r | |
345 | EFI_STATUS Status;\r | |
346 | UINTN Index;\r | |
347 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption;\r | |
348 | UINTN BootOptionCount;\r | |
349 | \r | |
350 | BootOption = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
351 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
352 | if ((DevicePathType (BootOption[Index].FilePath) == BBS_DEVICE_PATH) &&\r | |
353 | (DevicePathSubType (BootOption[Index].FilePath) == BBS_BBS_DP)) {\r | |
354 | Status = EfiBootManagerDeleteLoadOptionVariable (BootOption[Index].OptionNumber, BootOption[Index].OptionType);\r | |
355 | //\r | |
356 | // Deleting variable with current variable implementation shouldn't fail.\r | |
357 | //\r | |
358 | ASSERT_EFI_ERROR (Status);\r | |
359 | }\r | |
360 | }\r | |
361 | \r | |
362 | Status = gRT->SetVariable (\r | |
363 | VAR_LEGACY_DEV_ORDER,\r | |
364 | &gEfiLegacyDevOrderVariableGuid,\r | |
365 | 0,\r | |
366 | 0,\r | |
367 | NULL\r | |
368 | );\r | |
369 | //\r | |
370 | // Deleting variable with current variable implementation shouldn't fail.\r | |
371 | //\r | |
372 | ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_FOUND);\r | |
373 | \r | |
374 | return EFI_SUCCESS;\r | |
375 | }\r | |
376 | \r | |
377 | \r | |
378 | /**\r | |
379 | Delete all the invalid legacy boot options.\r | |
380 | \r | |
48cf40b8 | 381 | @retval EFI_SUCCESS All invalid legacy boot options are deleted.\r |
b522c77b | 382 | @retval EFI_OUT_OF_RESOURCES Fail to allocate necessary memory.\r |
48cf40b8 | 383 | @retval EFI_NOT_FOUND Fail to retrieve variable of boot order.\r |
b522c77b HW |
384 | **/\r |
385 | EFI_STATUS\r | |
386 | LegacyBmDeleteAllInvalidBootOptions (\r | |
387 | VOID\r | |
388 | )\r | |
389 | {\r | |
390 | EFI_STATUS Status;\r | |
391 | UINT16 HddCount;\r | |
392 | UINT16 BbsCount;\r | |
393 | HDD_INFO *HddInfo;\r | |
394 | BBS_TABLE *BbsTable;\r | |
395 | UINT16 BbsIndex;\r | |
396 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
397 | UINTN Index;\r | |
398 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption;\r | |
399 | UINTN BootOptionCount;\r | |
400 | LEGACY_DEV_ORDER_ENTRY *LegacyDevOrder;\r | |
401 | UINTN LegacyDevOrderSize;\r | |
402 | BOOLEAN *BbsIndexUsed;\r | |
403 | \r | |
404 | HddCount = 0;\r | |
405 | BbsCount = 0;\r | |
406 | HddInfo = NULL;\r | |
407 | BbsTable = NULL;\r | |
408 | \r | |
409 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
410 | if (EFI_ERROR (Status)) {\r | |
411 | return Status;\r | |
412 | }\r | |
413 | \r | |
414 | Status = LegacyBios->GetBbsInfo (\r | |
415 | LegacyBios,\r | |
416 | &HddCount,\r | |
417 | &HddInfo,\r | |
418 | &BbsCount,\r | |
419 | &BbsTable\r | |
420 | );\r | |
421 | if (EFI_ERROR (Status)) {\r | |
422 | return Status;\r | |
423 | }\r | |
424 | \r | |
425 | GetVariable2 (VAR_LEGACY_DEV_ORDER, &gEfiLegacyDevOrderVariableGuid, (VOID **) &LegacyDevOrder, &LegacyDevOrderSize);\r | |
426 | \r | |
427 | BootOption = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
428 | \r | |
429 | BbsIndexUsed = AllocateZeroPool (BbsCount * sizeof (BOOLEAN));\r | |
430 | ASSERT (BbsIndexUsed != NULL);\r | |
431 | \r | |
432 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
433 | //\r | |
434 | // Skip non legacy boot option\r | |
435 | //\r | |
436 | if ((DevicePathType (BootOption[Index].FilePath) != BBS_DEVICE_PATH) ||\r | |
437 | (DevicePathSubType (BootOption[Index].FilePath) != BBS_BBS_DP)) {\r | |
438 | continue;\r | |
439 | }\r | |
440 | \r | |
441 | BbsIndex = LegacyBmFuzzyMatch (&BootOption[Index], BbsTable, BbsCount, BbsIndexUsed);\r | |
442 | if (BbsIndex == BbsCount) {\r | |
443 | DEBUG ((EFI_D_INFO, "[LegacyBds] Delete Boot Option Boot%04x: %s\n", (UINTN) BootOption[Index].OptionNumber, BootOption[Index].Description));\r | |
444 | //\r | |
445 | // Delete entry from LegacyDevOrder\r | |
446 | //\r | |
447 | LegacyBmUpdateBbsIndex (\r | |
448 | LegacyDevOrder,\r | |
449 | &LegacyDevOrderSize,\r | |
450 | LegacyBmDeviceType (BootOption[Index].FilePath),\r | |
451 | ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex,\r | |
452 | (UINT16) -1\r | |
453 | );\r | |
454 | EfiBootManagerDeleteLoadOptionVariable (BootOption[Index].OptionNumber, BootOption[Index].OptionType);\r | |
455 | } else {\r | |
456 | if (((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex != BbsIndex) {\r | |
457 | DEBUG ((EFI_D_INFO, "[LegacyBds] Update Boot Option Boot%04x: %s Bbs0x%04x->Bbs0x%04x\n", (UINTN) BootOption[Index].OptionNumber, BootOption[Index].Description,\r | |
458 | (UINTN) ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex, (UINTN) BbsIndex));\r | |
459 | //\r | |
460 | // Update the BBS index in LegacyDevOrder\r | |
461 | //\r | |
462 | LegacyBmUpdateBbsIndex (\r | |
463 | LegacyDevOrder,\r | |
464 | &LegacyDevOrderSize,\r | |
465 | LegacyBmDeviceType (BootOption[Index].FilePath),\r | |
466 | ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex,\r | |
467 | BbsIndex\r | |
468 | );\r | |
469 | \r | |
470 | //\r | |
471 | // Update the OptionalData in the Boot#### variable\r | |
472 | //\r | |
473 | ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption[Index].OptionalData)->BbsIndex = BbsIndex;\r | |
474 | EfiBootManagerLoadOptionToVariable (&BootOption[Index]);\r | |
475 | }\r | |
476 | }\r | |
477 | }\r | |
478 | EfiBootManagerFreeLoadOptions (BootOption, BootOptionCount);\r | |
479 | \r | |
480 | if (LegacyDevOrder != NULL) {\r | |
481 | Status = gRT->SetVariable (\r | |
482 | VAR_LEGACY_DEV_ORDER,\r | |
483 | &gEfiLegacyDevOrderVariableGuid,\r | |
484 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
485 | LegacyDevOrderSize,\r | |
486 | LegacyDevOrder\r | |
487 | );\r | |
488 | //\r | |
489 | // Shrink variable with current variable implementation shouldn't fail.\r | |
490 | //\r | |
491 | ASSERT_EFI_ERROR (Status);\r | |
492 | \r | |
493 | FreePool (LegacyDevOrder);\r | |
494 | }\r | |
495 | FreePool(BbsIndexUsed);\r | |
496 | return Status;\r | |
497 | }\r | |
498 | \r | |
499 | /**\r | |
500 | Create legacy boot option.\r | |
501 | \r | |
48cf40b8 | 502 | @param BootOption Pointer to the boot option which will be crated.\r |
b522c77b HW |
503 | @param BbsEntry The input bbs entry info.\r |
504 | @param BbsIndex The BBS index.\r | |
505 | \r | |
506 | @retval EFI_SUCCESS Create legacy boot option successfully.\r | |
507 | @retval EFI_INVALID_PARAMETER Invalid input parameter.\r | |
508 | \r | |
509 | **/\r | |
510 | EFI_STATUS\r | |
511 | LegacyBmCreateLegacyBootOption (\r | |
512 | IN OUT EFI_BOOT_MANAGER_LOAD_OPTION *BootOption,\r | |
513 | IN BBS_TABLE *BbsEntry,\r | |
514 | IN UINT16 BbsIndex\r | |
515 | )\r | |
516 | {\r | |
517 | EFI_STATUS Status;\r | |
518 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
519 | CHAR16 Description[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
520 | CHAR8 HelpString[LEGACY_BM_BOOT_DESCRIPTION_LENGTH + 1];\r | |
521 | UINTN StringLen;\r | |
522 | LEGACY_BM_BOOT_OPTION_BBS_DATA *OptionalData;\r | |
523 | BBS_BBS_DEVICE_PATH *BbsNode;\r | |
524 | \r | |
525 | if ((BootOption == NULL) || (BbsEntry == NULL)) {\r | |
526 | return EFI_INVALID_PARAMETER;\r | |
527 | }\r | |
528 | \r | |
529 | LegacyBmBuildLegacyDevNameString (BbsEntry, BbsIndex, sizeof (Description), Description);\r | |
530 | \r | |
531 | //\r | |
532 | // Create the BBS device path with description string\r | |
533 | //\r | |
534 | UnicodeStrToAsciiStrS (Description, HelpString, sizeof (HelpString));\r | |
535 | StringLen = AsciiStrLen (HelpString);\r | |
536 | DevicePath = AllocatePool (sizeof (BBS_BBS_DEVICE_PATH) + StringLen + END_DEVICE_PATH_LENGTH);\r | |
537 | ASSERT (DevicePath != NULL);\r | |
538 | \r | |
539 | BbsNode = (BBS_BBS_DEVICE_PATH *) DevicePath;\r | |
540 | SetDevicePathNodeLength (BbsNode, sizeof (BBS_BBS_DEVICE_PATH) + StringLen);\r | |
541 | BbsNode->Header.Type = BBS_DEVICE_PATH;\r | |
542 | BbsNode->Header.SubType = BBS_BBS_DP;\r | |
543 | BbsNode->DeviceType = BbsEntry->DeviceType;\r | |
544 | CopyMem (&BbsNode->StatusFlag, &BbsEntry->StatusFlags, sizeof (BBS_STATUS_FLAGS));\r | |
545 | CopyMem (BbsNode->String, HelpString, StringLen + 1);\r | |
546 | \r | |
547 | SetDevicePathEndNode (NextDevicePathNode (BbsNode));\r | |
548 | \r | |
549 | //\r | |
550 | // Create the OptionalData\r | |
551 | //\r | |
552 | OptionalData = AllocatePool (sizeof (LEGACY_BM_BOOT_OPTION_BBS_DATA));\r | |
553 | ASSERT (OptionalData != NULL);\r | |
554 | OptionalData->BbsIndex = BbsIndex;\r | |
555 | \r | |
556 | //\r | |
557 | // Create the BootOption\r | |
558 | //\r | |
559 | Status = EfiBootManagerInitializeLoadOption (\r | |
560 | BootOption,\r | |
561 | LoadOptionNumberUnassigned,\r | |
562 | LoadOptionTypeBoot,\r | |
563 | LOAD_OPTION_ACTIVE,\r | |
564 | Description,\r | |
565 | DevicePath,\r | |
566 | (UINT8 *) OptionalData,\r | |
567 | sizeof (LEGACY_BM_BOOT_OPTION_BBS_DATA)\r | |
568 | );\r | |
569 | FreePool (DevicePath);\r | |
570 | FreePool (OptionalData);\r | |
571 | \r | |
572 | return Status;\r | |
573 | }\r | |
574 | \r | |
575 | /**\r | |
576 | Fill the device order buffer.\r | |
577 | \r | |
578 | @param BbsTable The BBS table.\r | |
579 | @param BbsType The BBS Type.\r | |
580 | @param BbsCount The BBS Count.\r | |
581 | @param Buf device order buffer.\r | |
582 | \r | |
583 | @return The device order buffer.\r | |
584 | \r | |
585 | **/\r | |
586 | UINT16 *\r | |
587 | LegacyBmFillDevOrderBuf (\r | |
588 | IN BBS_TABLE *BbsTable,\r | |
589 | IN BBS_TYPE BbsType,\r | |
590 | IN UINTN BbsCount,\r | |
591 | OUT UINT16 *Buf\r | |
592 | )\r | |
593 | {\r | |
594 | UINTN Index;\r | |
595 | \r | |
596 | for (Index = 0; Index < BbsCount; Index++) {\r | |
597 | if (!LegacyBmValidBbsEntry (&BbsTable[Index])) {\r | |
598 | continue;\r | |
599 | }\r | |
600 | \r | |
601 | if (BbsTable[Index].DeviceType != BbsType) {\r | |
602 | continue;\r | |
603 | }\r | |
604 | \r | |
605 | *Buf = (UINT16) (Index & 0xFF);\r | |
606 | Buf++;\r | |
607 | }\r | |
608 | \r | |
609 | return Buf;\r | |
610 | }\r | |
611 | \r | |
612 | /**\r | |
613 | Create the device order buffer.\r | |
614 | \r | |
615 | @param BbsTable The BBS table.\r | |
616 | @param BbsCount The BBS Count.\r | |
617 | \r | |
48cf40b8 | 618 | @retval EFI_SUCCESS The buffer is created and the EFI variable named\r |
b522c77b HW |
619 | VAR_LEGACY_DEV_ORDER and EfiLegacyDevOrderGuid is\r |
620 | set correctly.\r | |
48cf40b8 | 621 | @retval EFI_OUT_OF_RESOURCES Memory or storage is not enough.\r |
b522c77b HW |
622 | @retval EFI_DEVICE_ERROR Fail to add the device order into EFI variable fail\r |
623 | because of hardware error.\r | |
624 | **/\r | |
625 | EFI_STATUS\r | |
626 | LegacyBmCreateDevOrder (\r | |
627 | IN BBS_TABLE *BbsTable,\r | |
628 | IN UINT16 BbsCount\r | |
629 | )\r | |
630 | {\r | |
631 | UINTN Index;\r | |
632 | UINTN FDCount;\r | |
633 | UINTN HDCount;\r | |
634 | UINTN CDCount;\r | |
635 | UINTN NETCount;\r | |
636 | UINTN BEVCount;\r | |
637 | UINTN TotalSize;\r | |
638 | UINTN HeaderSize;\r | |
639 | LEGACY_DEV_ORDER_ENTRY *DevOrder;\r | |
640 | LEGACY_DEV_ORDER_ENTRY *DevOrderPtr;\r | |
641 | EFI_STATUS Status;\r | |
642 | \r | |
643 | FDCount = 0;\r | |
644 | HDCount = 0;\r | |
645 | CDCount = 0;\r | |
646 | NETCount = 0;\r | |
647 | BEVCount = 0;\r | |
648 | TotalSize = 0;\r | |
649 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r | |
650 | DevOrder = NULL;\r | |
651 | Status = EFI_SUCCESS;\r | |
652 | \r | |
653 | //\r | |
654 | // Count all boot devices\r | |
655 | //\r | |
656 | for (Index = 0; Index < BbsCount; Index++) {\r | |
657 | if (!LegacyBmValidBbsEntry (&BbsTable[Index])) {\r | |
658 | continue;\r | |
659 | }\r | |
660 | \r | |
661 | switch (BbsTable[Index].DeviceType) {\r | |
662 | case BBS_FLOPPY:\r | |
663 | FDCount++;\r | |
664 | break;\r | |
665 | \r | |
666 | case BBS_HARDDISK:\r | |
667 | HDCount++;\r | |
668 | break;\r | |
669 | \r | |
670 | case BBS_CDROM:\r | |
671 | CDCount++;\r | |
672 | break;\r | |
673 | \r | |
674 | case BBS_EMBED_NETWORK:\r | |
675 | NETCount++;\r | |
676 | break;\r | |
677 | \r | |
678 | case BBS_BEV_DEVICE:\r | |
679 | BEVCount++;\r | |
680 | break;\r | |
681 | \r | |
682 | default:\r | |
683 | break;\r | |
684 | }\r | |
685 | }\r | |
686 | \r | |
687 | TotalSize += (HeaderSize + sizeof (UINT16) * FDCount);\r | |
688 | TotalSize += (HeaderSize + sizeof (UINT16) * HDCount);\r | |
689 | TotalSize += (HeaderSize + sizeof (UINT16) * CDCount);\r | |
690 | TotalSize += (HeaderSize + sizeof (UINT16) * NETCount);\r | |
691 | TotalSize += (HeaderSize + sizeof (UINT16) * BEVCount);\r | |
692 | \r | |
693 | //\r | |
694 | // Create buffer to hold all boot device order\r | |
695 | //\r | |
696 | DevOrder = AllocateZeroPool (TotalSize);\r | |
697 | if (NULL == DevOrder) {\r | |
698 | return EFI_OUT_OF_RESOURCES;\r | |
699 | }\r | |
700 | DevOrderPtr = DevOrder;\r | |
701 | \r | |
702 | DevOrderPtr->BbsType = BBS_FLOPPY;\r | |
703 | DevOrderPtr->Length = (UINT16) (sizeof (DevOrderPtr->Length) + FDCount * sizeof (UINT16));\r | |
704 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_FLOPPY, BbsCount, DevOrderPtr->Data);\r | |
705 | \r | |
706 | DevOrderPtr->BbsType = BBS_HARDDISK;\r | |
707 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r | |
708 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_HARDDISK, BbsCount, DevOrderPtr->Data);\r | |
709 | \r | |
710 | DevOrderPtr->BbsType = BBS_CDROM;\r | |
711 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r | |
712 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_CDROM, BbsCount, DevOrderPtr->Data);\r | |
713 | \r | |
714 | DevOrderPtr->BbsType = BBS_EMBED_NETWORK;\r | |
715 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r | |
716 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_EMBED_NETWORK, BbsCount, DevOrderPtr->Data);\r | |
717 | \r | |
718 | DevOrderPtr->BbsType = BBS_BEV_DEVICE;\r | |
719 | DevOrderPtr->Length = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r | |
720 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) LegacyBmFillDevOrderBuf (BbsTable, BBS_BEV_DEVICE, BbsCount, DevOrderPtr->Data);\r | |
721 | \r | |
722 | ASSERT (TotalSize == ((UINTN) DevOrderPtr - (UINTN) DevOrder));\r | |
723 | \r | |
724 | //\r | |
725 | // Save device order for legacy boot device to variable.\r | |
726 | //\r | |
727 | Status = gRT->SetVariable (\r | |
728 | VAR_LEGACY_DEV_ORDER,\r | |
729 | &gEfiLegacyDevOrderVariableGuid,\r | |
730 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
731 | TotalSize,\r | |
732 | DevOrder\r | |
733 | );\r | |
734 | FreePool (DevOrder);\r | |
735 | \r | |
736 | return Status;\r | |
737 | }\r | |
738 | \r | |
739 | /**\r | |
740 | Add the legacy boot devices from BBS table into\r | |
741 | the legacy device boot order.\r | |
742 | \r | |
743 | @retval EFI_SUCCESS The boot devices are added successfully.\r | |
744 | @retval EFI_NOT_FOUND The legacy boot devices are not found.\r | |
48cf40b8 | 745 | @retval EFI_OUT_OF_RESOURCES Memory or storage is not enough.\r |
b522c77b HW |
746 | @retval EFI_DEVICE_ERROR Fail to add the legacy device boot order into EFI variable\r |
747 | because of hardware error.\r | |
748 | **/\r | |
749 | EFI_STATUS\r | |
750 | LegacyBmUpdateDevOrder (\r | |
751 | VOID\r | |
752 | )\r | |
753 | {\r | |
754 | LEGACY_DEV_ORDER_ENTRY *DevOrder;\r | |
755 | LEGACY_DEV_ORDER_ENTRY *NewDevOrder;\r | |
756 | LEGACY_DEV_ORDER_ENTRY *Ptr;\r | |
757 | LEGACY_DEV_ORDER_ENTRY *NewPtr;\r | |
758 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
759 | EFI_STATUS Status;\r | |
760 | UINT16 HddCount;\r | |
761 | UINT16 BbsCount;\r | |
762 | HDD_INFO *LocalHddInfo;\r | |
763 | BBS_TABLE *LocalBbsTable;\r | |
764 | UINTN Index;\r | |
765 | UINTN Index2;\r | |
766 | UINTN *Idx;\r | |
767 | UINTN FDCount;\r | |
768 | UINTN HDCount;\r | |
769 | UINTN CDCount;\r | |
770 | UINTN NETCount;\r | |
771 | UINTN BEVCount;\r | |
772 | UINTN TotalSize;\r | |
773 | UINTN HeaderSize;\r | |
774 | UINT16 *NewFDPtr;\r | |
775 | UINT16 *NewHDPtr;\r | |
776 | UINT16 *NewCDPtr;\r | |
777 | UINT16 *NewNETPtr;\r | |
778 | UINT16 *NewBEVPtr;\r | |
779 | UINT16 *NewDevPtr;\r | |
780 | UINTN FDIndex;\r | |
781 | UINTN HDIndex;\r | |
782 | UINTN CDIndex;\r | |
783 | UINTN NETIndex;\r | |
784 | UINTN BEVIndex;\r | |
785 | \r | |
786 | Idx = NULL;\r | |
787 | FDCount = 0;\r | |
788 | HDCount = 0;\r | |
789 | CDCount = 0;\r | |
790 | NETCount = 0;\r | |
791 | BEVCount = 0;\r | |
792 | TotalSize = 0;\r | |
793 | HeaderSize = sizeof (BBS_TYPE) + sizeof (UINT16);\r | |
794 | FDIndex = 0;\r | |
795 | HDIndex = 0;\r | |
796 | CDIndex = 0;\r | |
797 | NETIndex = 0;\r | |
798 | BEVIndex = 0;\r | |
799 | NewDevPtr = NULL;\r | |
800 | \r | |
801 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
802 | if (EFI_ERROR (Status)) {\r | |
803 | return Status;\r | |
804 | }\r | |
805 | \r | |
806 | Status = LegacyBios->GetBbsInfo (\r | |
807 | LegacyBios,\r | |
808 | &HddCount,\r | |
809 | &LocalHddInfo,\r | |
810 | &BbsCount,\r | |
811 | &LocalBbsTable\r | |
812 | );\r | |
813 | if (EFI_ERROR (Status)) {\r | |
814 | return Status;\r | |
815 | }\r | |
816 | \r | |
817 | GetVariable2 (VAR_LEGACY_DEV_ORDER, &gEfiLegacyDevOrderVariableGuid, (VOID **) &DevOrder, NULL);\r | |
818 | if (NULL == DevOrder) {\r | |
819 | return LegacyBmCreateDevOrder (LocalBbsTable, BbsCount);\r | |
820 | }\r | |
821 | //\r | |
822 | // First we figure out how many boot devices with same device type respectively\r | |
823 | //\r | |
824 | for (Index = 0; Index < BbsCount; Index++) {\r | |
825 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
826 | continue;\r | |
827 | }\r | |
828 | \r | |
829 | switch (LocalBbsTable[Index].DeviceType) {\r | |
830 | case BBS_FLOPPY:\r | |
831 | FDCount++;\r | |
832 | break;\r | |
833 | \r | |
834 | case BBS_HARDDISK:\r | |
835 | HDCount++;\r | |
836 | break;\r | |
837 | \r | |
838 | case BBS_CDROM:\r | |
839 | CDCount++;\r | |
840 | break;\r | |
841 | \r | |
842 | case BBS_EMBED_NETWORK:\r | |
843 | NETCount++;\r | |
844 | break;\r | |
845 | \r | |
846 | case BBS_BEV_DEVICE:\r | |
847 | BEVCount++;\r | |
848 | break;\r | |
849 | \r | |
850 | default:\r | |
851 | break;\r | |
852 | }\r | |
853 | }\r | |
854 | \r | |
855 | TotalSize += (HeaderSize + FDCount * sizeof (UINT16));\r | |
856 | TotalSize += (HeaderSize + HDCount * sizeof (UINT16));\r | |
857 | TotalSize += (HeaderSize + CDCount * sizeof (UINT16));\r | |
858 | TotalSize += (HeaderSize + NETCount * sizeof (UINT16));\r | |
859 | TotalSize += (HeaderSize + BEVCount * sizeof (UINT16));\r | |
860 | \r | |
861 | NewDevOrder = AllocateZeroPool (TotalSize);\r | |
862 | if (NULL == NewDevOrder) {\r | |
863 | return EFI_OUT_OF_RESOURCES;\r | |
864 | }\r | |
865 | \r | |
866 | //\r | |
867 | // copy FD\r | |
868 | //\r | |
869 | Ptr = DevOrder;\r | |
870 | NewPtr = NewDevOrder;\r | |
871 | NewPtr->BbsType = Ptr->BbsType;\r | |
872 | NewPtr->Length = (UINT16) (sizeof (UINT16) + FDCount * sizeof (UINT16));\r | |
873 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
874 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
875 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_FLOPPY\r | |
876 | ) {\r | |
877 | continue;\r | |
878 | }\r | |
879 | \r | |
880 | NewPtr->Data[FDIndex] = Ptr->Data[Index];\r | |
881 | FDIndex++;\r | |
882 | }\r | |
883 | NewFDPtr = NewPtr->Data;\r | |
884 | \r | |
885 | //\r | |
886 | // copy HD\r | |
887 | //\r | |
888 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
889 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
890 | NewPtr->BbsType = Ptr->BbsType;\r | |
891 | NewPtr->Length = (UINT16) (sizeof (UINT16) + HDCount * sizeof (UINT16));\r | |
892 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
893 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
894 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_HARDDISK\r | |
895 | ) {\r | |
896 | continue;\r | |
897 | }\r | |
898 | \r | |
899 | NewPtr->Data[HDIndex] = Ptr->Data[Index];\r | |
900 | HDIndex++;\r | |
901 | }\r | |
902 | NewHDPtr = NewPtr->Data;\r | |
903 | \r | |
904 | //\r | |
905 | // copy CD\r | |
906 | //\r | |
907 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
908 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
909 | NewPtr->BbsType = Ptr->BbsType;\r | |
910 | NewPtr->Length = (UINT16) (sizeof (UINT16) + CDCount * sizeof (UINT16));\r | |
911 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
912 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
913 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_CDROM\r | |
914 | ) {\r | |
915 | continue;\r | |
916 | }\r | |
917 | \r | |
918 | NewPtr->Data[CDIndex] = Ptr->Data[Index];\r | |
919 | CDIndex++;\r | |
920 | }\r | |
921 | NewCDPtr = NewPtr->Data;\r | |
922 | \r | |
923 | //\r | |
924 | // copy NET\r | |
925 | //\r | |
926 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
927 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
928 | NewPtr->BbsType = Ptr->BbsType;\r | |
929 | NewPtr->Length = (UINT16) (sizeof (UINT16) + NETCount * sizeof (UINT16));\r | |
930 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
931 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
932 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_EMBED_NETWORK\r | |
933 | ) {\r | |
934 | continue;\r | |
935 | }\r | |
936 | \r | |
937 | NewPtr->Data[NETIndex] = Ptr->Data[Index];\r | |
938 | NETIndex++;\r | |
939 | }\r | |
940 | NewNETPtr = NewPtr->Data;\r | |
941 | \r | |
942 | //\r | |
943 | // copy BEV\r | |
944 | //\r | |
945 | Ptr = (LEGACY_DEV_ORDER_ENTRY *) (&Ptr->Data[Ptr->Length / sizeof (UINT16) - 1]);\r | |
946 | NewPtr = (LEGACY_DEV_ORDER_ENTRY *) (&NewPtr->Data[NewPtr->Length / sizeof (UINT16) -1]);\r | |
947 | NewPtr->BbsType = Ptr->BbsType;\r | |
948 | NewPtr->Length = (UINT16) (sizeof (UINT16) + BEVCount * sizeof (UINT16));\r | |
949 | for (Index = 0; Index < Ptr->Length / sizeof (UINT16) - 1; Index++) {\r | |
950 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Ptr->Data[Index] & 0xFF]) ||\r | |
951 | LocalBbsTable[Ptr->Data[Index] & 0xFF].DeviceType != BBS_BEV_DEVICE\r | |
952 | ) {\r | |
953 | continue;\r | |
954 | }\r | |
955 | \r | |
956 | NewPtr->Data[BEVIndex] = Ptr->Data[Index];\r | |
957 | BEVIndex++;\r | |
958 | }\r | |
959 | NewBEVPtr = NewPtr->Data;\r | |
960 | \r | |
961 | for (Index = 0; Index < BbsCount; Index++) {\r | |
962 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
963 | continue;\r | |
964 | }\r | |
965 | \r | |
966 | switch (LocalBbsTable[Index].DeviceType) {\r | |
967 | case BBS_FLOPPY:\r | |
968 | Idx = &FDIndex;\r | |
969 | NewDevPtr = NewFDPtr;\r | |
970 | break;\r | |
971 | \r | |
972 | case BBS_HARDDISK:\r | |
973 | Idx = &HDIndex;\r | |
974 | NewDevPtr = NewHDPtr;\r | |
975 | break;\r | |
976 | \r | |
977 | case BBS_CDROM:\r | |
978 | Idx = &CDIndex;\r | |
979 | NewDevPtr = NewCDPtr;\r | |
980 | break;\r | |
981 | \r | |
982 | case BBS_EMBED_NETWORK:\r | |
983 | Idx = &NETIndex;\r | |
984 | NewDevPtr = NewNETPtr;\r | |
985 | break;\r | |
986 | \r | |
987 | case BBS_BEV_DEVICE:\r | |
988 | Idx = &BEVIndex;\r | |
989 | NewDevPtr = NewBEVPtr;\r | |
990 | break;\r | |
991 | \r | |
992 | default:\r | |
993 | Idx = NULL;\r | |
994 | break;\r | |
995 | }\r | |
996 | //\r | |
997 | // at this point we have copied those valid indexes to new buffer\r | |
998 | // and we should check if there is any new appeared boot device\r | |
999 | //\r | |
1000 | if (Idx != NULL) {\r | |
1001 | for (Index2 = 0; Index2 < *Idx; Index2++) {\r | |
1002 | if ((NewDevPtr[Index2] & 0xFF) == (UINT16) Index) {\r | |
1003 | break;\r | |
1004 | }\r | |
1005 | }\r | |
1006 | \r | |
1007 | if (Index2 == *Idx) {\r | |
1008 | //\r | |
1009 | // Index2 == *Idx means we didn't find Index\r | |
1010 | // so Index is a new appeared device's index in BBS table\r | |
1011 | // insert it before disabled indexes.\r | |
1012 | //\r | |
1013 | for (Index2 = 0; Index2 < *Idx; Index2++) {\r | |
1014 | if ((NewDevPtr[Index2] & 0xFF00) == 0xFF00) {\r | |
1015 | break;\r | |
1016 | }\r | |
1017 | }\r | |
1018 | CopyMem (&NewDevPtr[Index2 + 1], &NewDevPtr[Index2], (*Idx - Index2) * sizeof (UINT16));\r | |
1019 | NewDevPtr[Index2] = (UINT16) (Index & 0xFF);\r | |
1020 | (*Idx)++;\r | |
1021 | }\r | |
1022 | }\r | |
1023 | }\r | |
1024 | \r | |
1025 | FreePool (DevOrder);\r | |
1026 | \r | |
1027 | Status = gRT->SetVariable (\r | |
1028 | VAR_LEGACY_DEV_ORDER,\r | |
1029 | &gEfiLegacyDevOrderVariableGuid,\r | |
1030 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
1031 | TotalSize,\r | |
1032 | NewDevOrder\r | |
1033 | );\r | |
1034 | FreePool (NewDevOrder);\r | |
1035 | \r | |
1036 | return Status;\r | |
1037 | }\r | |
1038 | \r | |
1039 | /**\r | |
1040 | Set Boot Priority for specified device type.\r | |
1041 | \r | |
1042 | @param DeviceType The device type.\r | |
1043 | @param BbsIndex The BBS index to set the highest priority. Ignore when -1.\r | |
1044 | @param LocalBbsTable The BBS table.\r | |
48cf40b8 | 1045 | @param Priority The priority table.\r |
b522c77b HW |
1046 | \r |
1047 | @retval EFI_SUCCESS The function completes successfully.\r | |
1048 | @retval EFI_NOT_FOUND Failed to find device.\r | |
1049 | @retval EFI_OUT_OF_RESOURCES Failed to get the efi variable of device order.\r | |
1050 | \r | |
1051 | **/\r | |
1052 | EFI_STATUS\r | |
1053 | LegacyBmSetPriorityForSameTypeDev (\r | |
1054 | IN UINT16 DeviceType,\r | |
1055 | IN UINTN BbsIndex,\r | |
1056 | IN OUT BBS_TABLE *LocalBbsTable,\r | |
1057 | IN OUT UINT16 *Priority\r | |
1058 | )\r | |
1059 | {\r | |
1060 | LEGACY_DEV_ORDER_ENTRY *DevOrder;\r | |
1061 | LEGACY_DEV_ORDER_ENTRY *DevOrderPtr;\r | |
1062 | UINTN DevOrderSize;\r | |
1063 | UINTN Index;\r | |
1064 | \r | |
1065 | GetVariable2 (VAR_LEGACY_DEV_ORDER, &gEfiLegacyDevOrderVariableGuid, (VOID **) &DevOrder, &DevOrderSize);\r | |
1066 | if (NULL == DevOrder) {\r | |
1067 | return EFI_OUT_OF_RESOURCES;\r | |
1068 | }\r | |
1069 | \r | |
1070 | DevOrderPtr = DevOrder;\r | |
1071 | while ((UINT8 *) DevOrderPtr < (UINT8 *) DevOrder + DevOrderSize) {\r | |
1072 | if (DevOrderPtr->BbsType == DeviceType) {\r | |
1073 | break;\r | |
1074 | }\r | |
1075 | \r | |
1076 | DevOrderPtr = (LEGACY_DEV_ORDER_ENTRY *) ((UINTN) DevOrderPtr + sizeof (BBS_TYPE) + DevOrderPtr->Length);\r | |
1077 | }\r | |
1078 | \r | |
1079 | if ((UINT8 *) DevOrderPtr >= (UINT8 *) DevOrder + DevOrderSize) {\r | |
1080 | FreePool (DevOrder);\r | |
1081 | return EFI_NOT_FOUND;\r | |
1082 | }\r | |
1083 | \r | |
1084 | if (BbsIndex != (UINTN) -1) {\r | |
1085 | //\r | |
1086 | // In case the BBS entry isn't valid because devices were plugged or removed.\r | |
1087 | //\r | |
1088 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[BbsIndex]) || (LocalBbsTable[BbsIndex].DeviceType != DeviceType)) {\r | |
1089 | FreePool (DevOrder);\r | |
1090 | return EFI_NOT_FOUND;\r | |
1091 | }\r | |
1092 | LocalBbsTable[BbsIndex].BootPriority = *Priority;\r | |
1093 | (*Priority)++;\r | |
1094 | }\r | |
1095 | //\r | |
1096 | // If the high byte of the DevIndex is 0xFF, it indicates that this device has been disabled.\r | |
1097 | //\r | |
1098 | for (Index = 0; Index < DevOrderPtr->Length / sizeof (UINT16) - 1; Index++) {\r | |
1099 | if ((DevOrderPtr->Data[Index] & 0xFF00) == 0xFF00) {\r | |
1100 | //\r | |
1101 | // LocalBbsTable[DevIndex[Index] & 0xFF].BootPriority = BBS_DISABLED_ENTRY;\r | |
1102 | //\r | |
1103 | } else if (DevOrderPtr->Data[Index] != BbsIndex) {\r | |
1104 | LocalBbsTable[DevOrderPtr->Data[Index]].BootPriority = *Priority;\r | |
1105 | (*Priority)++;\r | |
1106 | }\r | |
1107 | }\r | |
1108 | \r | |
1109 | FreePool (DevOrder);\r | |
1110 | return EFI_SUCCESS;\r | |
1111 | }\r | |
1112 | \r | |
1113 | /**\r | |
1114 | Print the BBS Table.\r | |
1115 | \r | |
1116 | @param LocalBbsTable The BBS table.\r | |
1117 | @param BbsCount The count of entry in BBS table.\r | |
1118 | **/\r | |
1119 | VOID\r | |
1120 | LegacyBmPrintBbsTable (\r | |
1121 | IN BBS_TABLE *LocalBbsTable,\r | |
1122 | IN UINT16 BbsCount\r | |
1123 | )\r | |
1124 | {\r | |
1125 | UINT16 Index;\r | |
1126 | \r | |
1127 | DEBUG ((DEBUG_INFO, "\n"));\r | |
1128 | DEBUG ((DEBUG_INFO, " NO Prio bb/dd/ff cl/sc Type Stat segm:offs\n"));\r | |
1129 | DEBUG ((DEBUG_INFO, "=============================================\n"));\r | |
1130 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1131 | if (!LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
1132 | continue;\r | |
1133 | }\r | |
1134 | \r | |
1135 | DEBUG (\r | |
1136 | (DEBUG_INFO,\r | |
1137 | " %02x: %04x %02x/%02x/%02x %02x/%02x %04x %04x %04x:%04x\n",\r | |
1138 | (UINTN) Index,\r | |
1139 | (UINTN) LocalBbsTable[Index].BootPriority,\r | |
1140 | (UINTN) LocalBbsTable[Index].Bus,\r | |
1141 | (UINTN) LocalBbsTable[Index].Device,\r | |
1142 | (UINTN) LocalBbsTable[Index].Function,\r | |
1143 | (UINTN) LocalBbsTable[Index].Class,\r | |
1144 | (UINTN) LocalBbsTable[Index].SubClass,\r | |
1145 | (UINTN) LocalBbsTable[Index].DeviceType,\r | |
1146 | (UINTN) * (UINT16 *) &LocalBbsTable[Index].StatusFlags,\r | |
1147 | (UINTN) LocalBbsTable[Index].BootHandlerSegment,\r | |
1148 | (UINTN) LocalBbsTable[Index].BootHandlerOffset,\r | |
1149 | (UINTN) ((LocalBbsTable[Index].MfgStringSegment << 4) + LocalBbsTable[Index].MfgStringOffset),\r | |
1150 | (UINTN) ((LocalBbsTable[Index].DescStringSegment << 4) + LocalBbsTable[Index].DescStringOffset))\r | |
1151 | );\r | |
1152 | }\r | |
1153 | \r | |
1154 | DEBUG ((DEBUG_INFO, "\n"));\r | |
1155 | }\r | |
1156 | \r | |
1157 | /**\r | |
1158 | Set the boot priority for BBS entries based on boot option entry and boot order.\r | |
1159 | \r | |
1160 | @param BootOption The boot option is to be checked for refresh BBS table.\r | |
1161 | \r | |
1162 | @retval EFI_SUCCESS The boot priority for BBS entries is refreshed successfully.\r | |
1163 | @retval EFI_NOT_FOUND BBS entries can't be found.\r | |
1164 | @retval EFI_OUT_OF_RESOURCES Failed to get the legacy device boot order.\r | |
1165 | **/\r | |
1166 | EFI_STATUS\r | |
1167 | LegacyBmRefreshBbsTableForBoot (\r | |
1168 | IN EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
1169 | )\r | |
1170 | {\r | |
1171 | EFI_STATUS Status;\r | |
1172 | UINT16 BbsIndex;\r | |
1173 | UINT16 HddCount;\r | |
1174 | UINT16 BbsCount;\r | |
1175 | HDD_INFO *LocalHddInfo;\r | |
1176 | BBS_TABLE *LocalBbsTable;\r | |
1177 | UINT16 DevType;\r | |
1178 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1179 | UINTN Index;\r | |
1180 | UINT16 Priority;\r | |
1181 | UINT16 *DeviceType;\r | |
1182 | UINTN DeviceTypeCount;\r | |
1183 | UINTN DeviceTypeIndex;\r | |
1184 | EFI_BOOT_MANAGER_LOAD_OPTION *Option;\r | |
1185 | UINTN OptionCount;\r | |
1186 | \r | |
1187 | HddCount = 0;\r | |
1188 | BbsCount = 0;\r | |
1189 | LocalHddInfo = NULL;\r | |
1190 | LocalBbsTable = NULL;\r | |
1191 | DevType = BBS_UNKNOWN;\r | |
1192 | \r | |
1193 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1194 | if (EFI_ERROR (Status)) {\r | |
1195 | return Status;\r | |
1196 | }\r | |
1197 | \r | |
1198 | Status = LegacyBios->GetBbsInfo (\r | |
1199 | LegacyBios,\r | |
1200 | &HddCount,\r | |
1201 | &LocalHddInfo,\r | |
1202 | &BbsCount,\r | |
1203 | &LocalBbsTable\r | |
1204 | );\r | |
1205 | if (EFI_ERROR (Status)) {\r | |
1206 | return Status;\r | |
1207 | }\r | |
1208 | \r | |
1209 | //\r | |
1210 | // First, set all the present devices' boot priority to BBS_UNPRIORITIZED_ENTRY\r | |
1211 | // We will set them according to the settings setup by user\r | |
1212 | //\r | |
1213 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1214 | if (LegacyBmValidBbsEntry (&LocalBbsTable[Index])) {\r | |
1215 | LocalBbsTable[Index].BootPriority = BBS_UNPRIORITIZED_ENTRY;\r | |
1216 | }\r | |
1217 | }\r | |
1218 | //\r | |
1219 | // boot priority always starts at 0\r | |
1220 | //\r | |
1221 | Priority = 0;\r | |
1222 | if ((DevicePathType (BootOption->FilePath) == BBS_DEVICE_PATH) &&\r | |
1223 | (DevicePathSubType (BootOption->FilePath) == BBS_BBS_DP)) {\r | |
1224 | //\r | |
1225 | // If BootOption stands for a legacy boot option, we prioritize the devices with the same type first.\r | |
1226 | //\r | |
1227 | DevType = LegacyBmDeviceType (BootOption->FilePath);\r | |
1228 | BbsIndex = ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOption->OptionalData)->BbsIndex;\r | |
1229 | Status = LegacyBmSetPriorityForSameTypeDev (\r | |
1230 | DevType,\r | |
1231 | BbsIndex,\r | |
1232 | LocalBbsTable,\r | |
1233 | &Priority\r | |
1234 | );\r | |
1235 | if (EFI_ERROR (Status)) {\r | |
1236 | return Status;\r | |
1237 | }\r | |
1238 | }\r | |
1239 | //\r | |
1240 | // we have to set the boot priority for other BBS entries with different device types\r | |
1241 | //\r | |
1242 | Option = EfiBootManagerGetLoadOptions (&OptionCount, LoadOptionTypeBoot);\r | |
1243 | DeviceType = AllocatePool (sizeof (UINT16) * OptionCount);\r | |
1244 | ASSERT (DeviceType != NULL);\r | |
1245 | DeviceType[0] = DevType;\r | |
1246 | DeviceTypeCount = 1;\r | |
1247 | for (Index = 0; Index < OptionCount; Index++) {\r | |
1248 | if ((DevicePathType (Option[Index].FilePath) != BBS_DEVICE_PATH) ||\r | |
1249 | (DevicePathSubType (Option[Index].FilePath) != BBS_BBS_DP)) {\r | |
1250 | continue;\r | |
1251 | }\r | |
1252 | \r | |
1253 | DevType = LegacyBmDeviceType (Option[Index].FilePath);\r | |
1254 | for (DeviceTypeIndex = 0; DeviceTypeIndex < DeviceTypeCount; DeviceTypeIndex++) {\r | |
1255 | if (DeviceType[DeviceTypeIndex] == DevType) {\r | |
1256 | break;\r | |
1257 | }\r | |
1258 | }\r | |
1259 | if (DeviceTypeIndex < DeviceTypeCount) {\r | |
1260 | //\r | |
1261 | // We don't want to process twice for a device type\r | |
1262 | //\r | |
1263 | continue;\r | |
1264 | }\r | |
1265 | \r | |
1266 | DeviceType[DeviceTypeCount] = DevType;\r | |
1267 | DeviceTypeCount++;\r | |
1268 | \r | |
1269 | Status = LegacyBmSetPriorityForSameTypeDev (\r | |
1270 | DevType,\r | |
1271 | (UINTN) -1,\r | |
1272 | LocalBbsTable,\r | |
1273 | &Priority\r | |
1274 | );\r | |
1275 | }\r | |
1276 | EfiBootManagerFreeLoadOptions (Option, OptionCount);\r | |
1277 | \r | |
1278 | DEBUG_CODE_BEGIN();\r | |
1279 | LegacyBmPrintBbsTable (LocalBbsTable, BbsCount);\r | |
1280 | DEBUG_CODE_END();\r | |
1281 | \r | |
1282 | return Status;\r | |
1283 | }\r | |
1284 | \r | |
1285 | \r | |
1286 | /**\r | |
1287 | Boot the legacy system with the boot option.\r | |
1288 | \r | |
1289 | @param BootOption The legacy boot option which have BBS device path\r | |
1290 | On return, BootOption->Status contains the boot status.\r | |
1291 | EFI_UNSUPPORTED There is no legacybios protocol, do not support\r | |
1292 | legacy boot.\r | |
1293 | EFI_STATUS The status of LegacyBios->LegacyBoot ().\r | |
1294 | **/\r | |
1295 | VOID\r | |
1296 | EFIAPI\r | |
1297 | LegacyBmBoot (\r | |
1298 | IN EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
1299 | )\r | |
1300 | {\r | |
1301 | EFI_STATUS Status;\r | |
1302 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1303 | \r | |
1304 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1305 | if (EFI_ERROR (Status)) {\r | |
1306 | //\r | |
1307 | // If no LegacyBios protocol we do not support legacy boot\r | |
1308 | //\r | |
1309 | BootOption->Status = EFI_UNSUPPORTED;\r | |
1310 | return;\r | |
1311 | }\r | |
1312 | //\r | |
1313 | // Notes: if we separate the int 19, then we don't need to refresh BBS\r | |
1314 | //\r | |
1315 | Status = LegacyBmRefreshBbsTableForBoot (BootOption);\r | |
1316 | if (EFI_ERROR (Status)) {\r | |
1317 | BootOption->Status = Status;\r | |
1318 | return;\r | |
1319 | }\r | |
1320 | \r | |
1321 | BootOption->Status = LegacyBios->LegacyBoot (\r | |
1322 | LegacyBios,\r | |
1323 | (BBS_BBS_DEVICE_PATH *) BootOption->FilePath,\r | |
1324 | BootOption->OptionalDataSize,\r | |
1325 | BootOption->OptionalData\r | |
1326 | );\r | |
1327 | }\r | |
1328 | \r | |
1329 | /**\r | |
1330 | This function enumerates all the legacy boot options.\r | |
1331 | \r | |
1332 | @param BootOptionCount Return the legacy boot option count.\r | |
1333 | \r | |
1334 | @retval Pointer to the legacy boot option buffer.\r | |
1335 | **/\r | |
1336 | EFI_BOOT_MANAGER_LOAD_OPTION *\r | |
1337 | LegacyBmEnumerateAllBootOptions (\r | |
1338 | UINTN *BootOptionCount\r | |
1339 | )\r | |
1340 | {\r | |
1341 | EFI_STATUS Status;\r | |
1342 | UINT16 HddCount;\r | |
1343 | UINT16 BbsCount;\r | |
1344 | HDD_INFO *HddInfo;\r | |
1345 | BBS_TABLE *BbsTable;\r | |
1346 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1347 | UINT16 Index;\r | |
1348 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
1349 | \r | |
1350 | ASSERT (BootOptionCount != NULL);\r | |
1351 | \r | |
1352 | BootOptions = NULL;\r | |
1353 | *BootOptionCount = 0;\r | |
1354 | BbsCount = 0;\r | |
1355 | \r | |
1356 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1357 | if (EFI_ERROR (Status)) {\r | |
1358 | return NULL;\r | |
1359 | }\r | |
1360 | \r | |
1361 | Status = LegacyBios->GetBbsInfo (\r | |
1362 | LegacyBios,\r | |
1363 | &HddCount,\r | |
1364 | &HddInfo,\r | |
1365 | &BbsCount,\r | |
1366 | &BbsTable\r | |
1367 | );\r | |
1368 | if (EFI_ERROR (Status)) {\r | |
1369 | return NULL;\r | |
1370 | }\r | |
1371 | \r | |
1372 | for (Index = 0; Index < BbsCount; Index++) {\r | |
1373 | if (!LegacyBmValidBbsEntry (&BbsTable[Index])) {\r | |
1374 | continue;\r | |
1375 | }\r | |
1376 | \r | |
1377 | BootOptions = ReallocatePool (\r | |
1378 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
1379 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
1380 | BootOptions\r | |
1381 | );\r | |
1382 | ASSERT (BootOptions != NULL);\r | |
1383 | \r | |
1384 | Status = LegacyBmCreateLegacyBootOption (&BootOptions[(*BootOptionCount)++], &BbsTable[Index], Index);\r | |
1385 | ASSERT_EFI_ERROR (Status);\r | |
1386 | }\r | |
1387 | \r | |
1388 | return BootOptions;\r | |
1389 | }\r | |
1390 | \r | |
1391 | /**\r | |
1392 | Return the index of the boot option in the boot option array.\r | |
1393 | \r | |
1394 | The function compares the Description, FilePath, OptionalData.\r | |
1395 | \r | |
1396 | @param Key The input boot option which is compared with.\r | |
1397 | @param Array The input boot option array.\r | |
1398 | @param Count The count of the input boot options.\r | |
1399 | \r | |
1400 | @retval The index of the input boot option in the array.\r | |
1401 | \r | |
1402 | **/\r | |
1403 | INTN\r | |
1404 | LegacyBmFindBootOption (\r | |
1405 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Key,\r | |
1406 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Array,\r | |
1407 | IN UINTN Count\r | |
1408 | )\r | |
1409 | {\r | |
1410 | UINTN Index;\r | |
1411 | \r | |
1412 | for (Index = 0; Index < Count; Index++) {\r | |
1413 | if ((StrCmp (Key->Description, Array[Index].Description) == 0) &&\r | |
1414 | (CompareMem (Key->FilePath, Array[Index].FilePath, GetDevicePathSize (Key->FilePath)) == 0) &&\r | |
1415 | (Key->OptionalDataSize == Array[Index].OptionalDataSize) &&\r | |
1416 | (CompareMem (Key->OptionalData, Array[Index].OptionalData, Key->OptionalDataSize) == 0)) {\r | |
1417 | return (INTN) Index;\r | |
1418 | }\r | |
1419 | }\r | |
1420 | \r | |
1421 | return -1;\r | |
1422 | }\r | |
1423 | \r | |
1424 | /**\r | |
1425 | Refresh all legacy boot options.\r | |
1426 | \r | |
1427 | **/\r | |
1428 | VOID\r | |
1429 | EFIAPI\r | |
1430 | LegacyBmRefreshAllBootOption (\r | |
1431 | VOID\r | |
1432 | )\r | |
1433 | {\r | |
1434 | EFI_STATUS Status;\r | |
1435 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
1436 | UINTN RootBridgeHandleCount;\r | |
1437 | EFI_HANDLE *RootBridgeHandleBuffer;\r | |
1438 | UINTN HandleCount;\r | |
1439 | EFI_HANDLE *HandleBuffer;\r | |
1440 | UINTN RootBridgeIndex;\r | |
1441 | UINTN Index;\r | |
1442 | UINTN Flags;\r | |
1443 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
1444 | UINTN BootOptionCount;\r | |
1445 | EFI_BOOT_MANAGER_LOAD_OPTION *ExistingBootOptions;\r | |
1446 | UINTN ExistingBootOptionCount;\r | |
1447 | \r | |
1448 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
1449 | if (EFI_ERROR (Status)) {\r | |
1450 | LegacyBmDeleteAllBootOptions ();\r | |
1451 | return;\r | |
1452 | }\r | |
1453 | PERF_START (NULL, "LegacyBootOptionEnum", "BDS", 0);\r | |
1454 | \r | |
1455 | //\r | |
1456 | // Before enumerating the legacy boot option, we need to dispatch all the legacy option roms\r | |
1457 | // to ensure the GetBbsInfo() counts all the legacy devices.\r | |
1458 | //\r | |
1459 | gBS->LocateHandleBuffer (\r | |
1460 | ByProtocol,\r | |
1461 | &gEfiPciRootBridgeIoProtocolGuid,\r | |
1462 | NULL,\r | |
1463 | &RootBridgeHandleCount,\r | |
1464 | &RootBridgeHandleBuffer\r | |
1465 | );\r | |
1466 | for (RootBridgeIndex = 0; RootBridgeIndex < RootBridgeHandleCount; RootBridgeIndex++) {\r | |
1467 | gBS->ConnectController (RootBridgeHandleBuffer[RootBridgeIndex], NULL, NULL, FALSE);\r | |
1468 | gBS->LocateHandleBuffer (\r | |
1469 | ByProtocol,\r | |
1470 | &gEfiPciIoProtocolGuid,\r | |
1471 | NULL,\r | |
1472 | &HandleCount,\r | |
1473 | &HandleBuffer\r | |
1474 | );\r | |
1475 | for (Index = 0; Index < HandleCount; Index++) {\r | |
1476 | //\r | |
1477 | // Start the thunk driver so that the legacy option rom gets dispatched.\r | |
1478 | // Note: We don't directly call InstallPciRom because some thunk drivers\r | |
1479 | // (e.g. BlockIo thunk driver) depend on the immediate result after dispatching\r | |
1480 | //\r | |
1481 | Status = LegacyBios->CheckPciRom (\r | |
1482 | LegacyBios,\r | |
1483 | HandleBuffer[Index],\r | |
1484 | NULL,\r | |
1485 | NULL,\r | |
1486 | &Flags\r | |
1487 | );\r | |
1488 | if (!EFI_ERROR (Status)) {\r | |
1489 | gBS->ConnectController (HandleBuffer[Index], NULL, NULL, FALSE);\r | |
1490 | }\r | |
1491 | }\r | |
1492 | }\r | |
1493 | \r | |
1494 | //\r | |
1495 | // Same algorithm pattern as the EfiBootManagerRefreshAllBootOption\r | |
1496 | // Firstly delete the invalid legacy boot options,\r | |
48cf40b8 | 1497 | // then enumerate and save the newly appeared legacy boot options\r |
b522c77b HW |
1498 | // the last step is legacy boot option special action to refresh the LegacyDevOrder variable\r |
1499 | //\r | |
1500 | LegacyBmDeleteAllInvalidBootOptions ();\r | |
1501 | \r | |
1502 | ExistingBootOptions = EfiBootManagerGetLoadOptions (&ExistingBootOptionCount, LoadOptionTypeBoot);\r | |
1503 | BootOptions = LegacyBmEnumerateAllBootOptions (&BootOptionCount);\r | |
1504 | \r | |
1505 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
1506 | if (LegacyBmFindBootOption (&BootOptions[Index], ExistingBootOptions, ExistingBootOptionCount) == -1) {\r | |
1507 | Status = EfiBootManagerAddLoadOptionVariable (&BootOptions[Index], (UINTN) -1);\r | |
1508 | DEBUG ((\r | |
1509 | EFI_D_INFO, "[LegacyBds] New Boot Option: Boot%04x Bbs0x%04x %s %r\n",\r | |
1510 | (UINTN) BootOptions[Index].OptionNumber,\r | |
1511 | (UINTN) ((LEGACY_BM_BOOT_OPTION_BBS_DATA *) BootOptions[Index].OptionalData)->BbsIndex,\r | |
1512 | BootOptions[Index].Description,\r | |
1513 | Status\r | |
1514 | ));\r | |
1515 | //\r | |
1516 | // Continue upon failure to add boot option.\r | |
1517 | //\r | |
1518 | }\r | |
1519 | }\r | |
1520 | \r | |
1521 | EfiBootManagerFreeLoadOptions (ExistingBootOptions, ExistingBootOptionCount);\r | |
1522 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
1523 | \r | |
1524 | //\r | |
1525 | // Failure to create LegacyDevOrder variable only impacts the boot order.\r | |
1526 | //\r | |
1527 | LegacyBmUpdateDevOrder ();\r | |
1528 | \r | |
1529 | PERF_END (NULL, "LegacyBootOptionEnum", "BDS", 0);\r | |
1530 | }\r |