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1 | /** @file\r | |
2 | Load option library functions which relate with creating and processing load options.\r | |
3 | \r | |
4 | Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>\r | |
5 | (C) Copyright 2015-2018 Hewlett Packard Enterprise Development LP<BR>\r | |
6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
7 | \r | |
8 | **/\r | |
9 | \r | |
10 | #include "InternalBm.h"\r | |
11 | \r | |
12 | #include <Library/VariablePolicyHelperLib.h>\r | |
13 | \r | |
14 | GLOBAL_REMOVE_IF_UNREFERENCED\r | |
15 | CHAR16 *mBmLoadOptionName[] = {\r | |
16 | L"Driver",\r | |
17 | L"SysPrep",\r | |
18 | L"Boot",\r | |
19 | L"PlatformRecovery"\r | |
20 | };\r | |
21 | \r | |
22 | GLOBAL_REMOVE_IF_UNREFERENCED\r | |
23 | CHAR16 *mBmLoadOptionOrderName[] = {\r | |
24 | EFI_DRIVER_ORDER_VARIABLE_NAME,\r | |
25 | EFI_SYS_PREP_ORDER_VARIABLE_NAME,\r | |
26 | EFI_BOOT_ORDER_VARIABLE_NAME,\r | |
27 | NULL // PlatformRecovery#### doesn't have associated *Order variable\r | |
28 | };\r | |
29 | \r | |
30 | /**\r | |
31 | Call Visitor function for each variable in variable storage.\r | |
32 | \r | |
33 | @param Visitor Visitor function.\r | |
34 | @param Context The context passed to Visitor function.\r | |
35 | **/\r | |
36 | VOID\r | |
37 | BmForEachVariable (\r | |
38 | BM_VARIABLE_VISITOR Visitor,\r | |
39 | VOID *Context\r | |
40 | )\r | |
41 | {\r | |
42 | EFI_STATUS Status;\r | |
43 | CHAR16 *Name;\r | |
44 | EFI_GUID Guid;\r | |
45 | UINTN NameSize;\r | |
46 | UINTN NewNameSize;\r | |
47 | \r | |
48 | NameSize = sizeof (CHAR16);\r | |
49 | Name = AllocateZeroPool (NameSize);\r | |
50 | ASSERT (Name != NULL);\r | |
51 | while (TRUE) {\r | |
52 | NewNameSize = NameSize;\r | |
53 | Status = gRT->GetNextVariableName (&NewNameSize, Name, &Guid);\r | |
54 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
55 | Name = ReallocatePool (NameSize, NewNameSize, Name);\r | |
56 | ASSERT (Name != NULL);\r | |
57 | Status = gRT->GetNextVariableName (&NewNameSize, Name, &Guid);\r | |
58 | NameSize = NewNameSize;\r | |
59 | }\r | |
60 | \r | |
61 | if (Status == EFI_NOT_FOUND) {\r | |
62 | break;\r | |
63 | }\r | |
64 | \r | |
65 | ASSERT_EFI_ERROR (Status);\r | |
66 | \r | |
67 | Visitor (Name, &Guid, Context);\r | |
68 | }\r | |
69 | \r | |
70 | FreePool (Name);\r | |
71 | }\r | |
72 | \r | |
73 | /**\r | |
74 | Get the Option Number that wasn't used.\r | |
75 | \r | |
76 | @param LoadOptionType The load option type.\r | |
77 | @param FreeOptionNumber Return the minimal free option number.\r | |
78 | \r | |
79 | @retval EFI_SUCCESS The option number is found and will be returned.\r | |
80 | @retval EFI_OUT_OF_RESOURCES There is no free option number that can be used.\r | |
81 | @retval EFI_INVALID_PARAMETER FreeOptionNumber is NULL\r | |
82 | \r | |
83 | **/\r | |
84 | EFI_STATUS\r | |
85 | BmGetFreeOptionNumber (\r | |
86 | IN EFI_BOOT_MANAGER_LOAD_OPTION_TYPE LoadOptionType,\r | |
87 | OUT UINT16 *FreeOptionNumber\r | |
88 | )\r | |
89 | {\r | |
90 | UINTN OptionNumber;\r | |
91 | UINTN Index;\r | |
92 | UINT16 *OptionOrder;\r | |
93 | UINTN OptionOrderSize;\r | |
94 | UINT16 *BootNext;\r | |
95 | \r | |
96 | ASSERT (FreeOptionNumber != NULL);\r | |
97 | ASSERT (\r | |
98 | LoadOptionType == LoadOptionTypeDriver ||\r | |
99 | LoadOptionType == LoadOptionTypeBoot ||\r | |
100 | LoadOptionType == LoadOptionTypeSysPrep\r | |
101 | );\r | |
102 | \r | |
103 | GetEfiGlobalVariable2 (mBmLoadOptionOrderName[LoadOptionType], (VOID **)&OptionOrder, &OptionOrderSize);\r | |
104 | ASSERT ((OptionOrder != NULL && OptionOrderSize != 0) || (OptionOrder == NULL && OptionOrderSize == 0));\r | |
105 | \r | |
106 | BootNext = NULL;\r | |
107 | if (LoadOptionType == LoadOptionTypeBoot) {\r | |
108 | GetEfiGlobalVariable2 (L"BootNext", (VOID **)&BootNext, NULL);\r | |
109 | }\r | |
110 | \r | |
111 | for (OptionNumber = 0;\r | |
112 | OptionNumber < OptionOrderSize / sizeof (UINT16)\r | |
113 | + ((BootNext != NULL) ? 1 : 0);\r | |
114 | OptionNumber++\r | |
115 | )\r | |
116 | {\r | |
117 | //\r | |
118 | // Search in OptionOrder whether the OptionNumber exists\r | |
119 | //\r | |
120 | for (Index = 0; Index < OptionOrderSize / sizeof (UINT16); Index++) {\r | |
121 | if (OptionNumber == OptionOrder[Index]) {\r | |
122 | break;\r | |
123 | }\r | |
124 | }\r | |
125 | \r | |
126 | //\r | |
127 | // We didn't find it in the ****Order array and it doesn't equal to BootNext\r | |
128 | // Otherwise, OptionNumber equals to OptionOrderSize / sizeof (UINT16) + 1\r | |
129 | //\r | |
130 | if ((Index == OptionOrderSize / sizeof (UINT16)) &&\r | |
131 | ((BootNext == NULL) || (OptionNumber != *BootNext))\r | |
132 | )\r | |
133 | {\r | |
134 | break;\r | |
135 | }\r | |
136 | }\r | |
137 | \r | |
138 | if (OptionOrder != NULL) {\r | |
139 | FreePool (OptionOrder);\r | |
140 | }\r | |
141 | \r | |
142 | if (BootNext != NULL) {\r | |
143 | FreePool (BootNext);\r | |
144 | }\r | |
145 | \r | |
146 | //\r | |
147 | // When BootOrder & BootNext conver all numbers in the range [0 ... 0xffff],\r | |
148 | // OptionNumber equals to 0x10000 which is not valid.\r | |
149 | //\r | |
150 | ASSERT (OptionNumber <= 0x10000);\r | |
151 | if (OptionNumber == 0x10000) {\r | |
152 | return EFI_OUT_OF_RESOURCES;\r | |
153 | } else {\r | |
154 | *FreeOptionNumber = (UINT16)OptionNumber;\r | |
155 | return EFI_SUCCESS;\r | |
156 | }\r | |
157 | }\r | |
158 | \r | |
159 | /**\r | |
160 | Create the Boot####, Driver####, SysPrep####, PlatformRecovery#### variable\r | |
161 | from the load option.\r | |
162 | \r | |
163 | @param LoadOption Pointer to the load option.\r | |
164 | \r | |
165 | @retval EFI_SUCCESS The variable was created.\r | |
166 | @retval Others Error status returned by RT->SetVariable.\r | |
167 | **/\r | |
168 | EFI_STATUS\r | |
169 | EFIAPI\r | |
170 | EfiBootManagerLoadOptionToVariable (\r | |
171 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Option\r | |
172 | )\r | |
173 | {\r | |
174 | EFI_STATUS Status;\r | |
175 | UINTN VariableSize;\r | |
176 | UINT8 *Variable;\r | |
177 | UINT8 *Ptr;\r | |
178 | CHAR16 OptionName[BM_OPTION_NAME_LEN];\r | |
179 | CHAR16 *Description;\r | |
180 | CHAR16 NullChar;\r | |
181 | EDKII_VARIABLE_POLICY_PROTOCOL *VariablePolicy;\r | |
182 | UINT32 VariableAttributes;\r | |
183 | \r | |
184 | if ((Option->OptionNumber == LoadOptionNumberUnassigned) ||\r | |
185 | (Option->FilePath == NULL) ||\r | |
186 | ((UINT32)Option->OptionType >= LoadOptionTypeMax)\r | |
187 | )\r | |
188 | {\r | |
189 | return EFI_INVALID_PARAMETER;\r | |
190 | }\r | |
191 | \r | |
192 | //\r | |
193 | // Convert NULL description to empty description\r | |
194 | //\r | |
195 | NullChar = L'\0';\r | |
196 | Description = Option->Description;\r | |
197 | if (Description == NULL) {\r | |
198 | Description = &NullChar;\r | |
199 | }\r | |
200 | \r | |
201 | /*\r | |
202 | UINT32 Attributes;\r | |
203 | UINT16 FilePathListLength;\r | |
204 | CHAR16 Description[];\r | |
205 | EFI_DEVICE_PATH_PROTOCOL FilePathList[];\r | |
206 | UINT8 OptionalData[];\r | |
207 | TODO: FilePathList[] IS:\r | |
208 | A packed array of UEFI device paths. The first element of the\r | |
209 | array is a device path that describes the device and location of the\r | |
210 | Image for this load option. The FilePathList[0] is specific\r | |
211 | to the device type. Other device paths may optionally exist in the\r | |
212 | FilePathList, but their usage is OSV specific. Each element\r | |
213 | in the array is variable length, and ends at the device path end\r | |
214 | structure.\r | |
215 | */\r | |
216 | VariableSize = sizeof (Option->Attributes)\r | |
217 | + sizeof (UINT16)\r | |
218 | + StrSize (Description)\r | |
219 | + GetDevicePathSize (Option->FilePath)\r | |
220 | + Option->OptionalDataSize;\r | |
221 | \r | |
222 | Variable = AllocatePool (VariableSize);\r | |
223 | ASSERT (Variable != NULL);\r | |
224 | \r | |
225 | Ptr = Variable;\r | |
226 | WriteUnaligned32 ((UINT32 *)Ptr, Option->Attributes);\r | |
227 | Ptr += sizeof (Option->Attributes);\r | |
228 | \r | |
229 | WriteUnaligned16 ((UINT16 *)Ptr, (UINT16)GetDevicePathSize (Option->FilePath));\r | |
230 | Ptr += sizeof (UINT16);\r | |
231 | \r | |
232 | CopyMem (Ptr, Description, StrSize (Description));\r | |
233 | Ptr += StrSize (Description);\r | |
234 | \r | |
235 | CopyMem (Ptr, Option->FilePath, GetDevicePathSize (Option->FilePath));\r | |
236 | Ptr += GetDevicePathSize (Option->FilePath);\r | |
237 | \r | |
238 | CopyMem (Ptr, Option->OptionalData, Option->OptionalDataSize);\r | |
239 | \r | |
240 | UnicodeSPrint (OptionName, sizeof (OptionName), L"%s%04x", mBmLoadOptionName[Option->OptionType], Option->OptionNumber);\r | |
241 | \r | |
242 | VariableAttributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE;\r | |
243 | if (Option->OptionType == LoadOptionTypePlatformRecovery) {\r | |
244 | //\r | |
245 | // Lock the PlatformRecovery####\r | |
246 | //\r | |
247 | Status = gBS->LocateProtocol (&gEdkiiVariablePolicyProtocolGuid, NULL, (VOID **)&VariablePolicy);\r | |
248 | if (!EFI_ERROR (Status)) {\r | |
249 | Status = RegisterBasicVariablePolicy (\r | |
250 | VariablePolicy,\r | |
251 | &gEfiGlobalVariableGuid,\r | |
252 | OptionName,\r | |
253 | VARIABLE_POLICY_NO_MIN_SIZE,\r | |
254 | VARIABLE_POLICY_NO_MAX_SIZE,\r | |
255 | VARIABLE_POLICY_NO_MUST_ATTR,\r | |
256 | VARIABLE_POLICY_NO_CANT_ATTR,\r | |
257 | VARIABLE_POLICY_TYPE_LOCK_NOW\r | |
258 | );\r | |
259 | ASSERT_EFI_ERROR (Status);\r | |
260 | }\r | |
261 | \r | |
262 | VariableAttributes = EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;\r | |
263 | }\r | |
264 | \r | |
265 | Status = gRT->SetVariable (\r | |
266 | OptionName,\r | |
267 | &gEfiGlobalVariableGuid,\r | |
268 | VariableAttributes,\r | |
269 | VariableSize,\r | |
270 | Variable\r | |
271 | );\r | |
272 | FreePool (Variable);\r | |
273 | \r | |
274 | return Status;\r | |
275 | }\r | |
276 | \r | |
277 | /**\r | |
278 | Update order variable .\r | |
279 | \r | |
280 | @param OptionOrderName Order variable name which need to be updated.\r | |
281 | @param OptionNumber Option number for the new option.\r | |
282 | @param Position Position of the new load option to put in the ****Order variable.\r | |
283 | \r | |
284 | @retval EFI_SUCCESS The boot#### or driver#### have been successfully registered.\r | |
285 | @retval EFI_ALREADY_STARTED The option number of Option is being used already.\r | |
286 | @retval EFI_STATUS Return the status of gRT->SetVariable ().\r | |
287 | \r | |
288 | **/\r | |
289 | EFI_STATUS\r | |
290 | BmAddOptionNumberToOrderVariable (\r | |
291 | IN CHAR16 *OptionOrderName,\r | |
292 | IN UINT16 OptionNumber,\r | |
293 | IN UINTN Position\r | |
294 | )\r | |
295 | {\r | |
296 | EFI_STATUS Status;\r | |
297 | UINTN Index;\r | |
298 | UINT16 *OptionOrder;\r | |
299 | UINT16 *NewOptionOrder;\r | |
300 | UINTN OptionOrderSize;\r | |
301 | \r | |
302 | //\r | |
303 | // Update the option order variable\r | |
304 | //\r | |
305 | GetEfiGlobalVariable2 (OptionOrderName, (VOID **)&OptionOrder, &OptionOrderSize);\r | |
306 | ASSERT ((OptionOrder != NULL && OptionOrderSize != 0) || (OptionOrder == NULL && OptionOrderSize == 0));\r | |
307 | \r | |
308 | Status = EFI_SUCCESS;\r | |
309 | for (Index = 0; Index < OptionOrderSize / sizeof (UINT16); Index++) {\r | |
310 | if (OptionOrder[Index] == OptionNumber) {\r | |
311 | Status = EFI_ALREADY_STARTED;\r | |
312 | break;\r | |
313 | }\r | |
314 | }\r | |
315 | \r | |
316 | if (!EFI_ERROR (Status)) {\r | |
317 | Position = MIN (Position, OptionOrderSize / sizeof (UINT16));\r | |
318 | \r | |
319 | NewOptionOrder = AllocatePool (OptionOrderSize + sizeof (UINT16));\r | |
320 | ASSERT (NewOptionOrder != NULL);\r | |
321 | if (OptionOrderSize != 0) {\r | |
322 | CopyMem (NewOptionOrder, OptionOrder, Position * sizeof (UINT16));\r | |
323 | CopyMem (&NewOptionOrder[Position + 1], &OptionOrder[Position], OptionOrderSize - Position * sizeof (UINT16));\r | |
324 | }\r | |
325 | \r | |
326 | NewOptionOrder[Position] = OptionNumber;\r | |
327 | \r | |
328 | Status = gRT->SetVariable (\r | |
329 | OptionOrderName,\r | |
330 | &gEfiGlobalVariableGuid,\r | |
331 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
332 | OptionOrderSize + sizeof (UINT16),\r | |
333 | NewOptionOrder\r | |
334 | );\r | |
335 | FreePool (NewOptionOrder);\r | |
336 | }\r | |
337 | \r | |
338 | if (OptionOrder != NULL) {\r | |
339 | FreePool (OptionOrder);\r | |
340 | }\r | |
341 | \r | |
342 | return Status;\r | |
343 | }\r | |
344 | \r | |
345 | /**\r | |
346 | This function will register the new Boot####, Driver#### or SysPrep#### option.\r | |
347 | After the *#### is updated, the *Order will also be updated.\r | |
348 | \r | |
349 | @param Option Pointer to load option to add. If on input\r | |
350 | Option->OptionNumber is LoadOptionNumberUnassigned,\r | |
351 | then on output Option->OptionNumber is updated to\r | |
352 | the number of the new Boot####,\r | |
353 | Driver#### or SysPrep#### option.\r | |
354 | @param Position Position of the new load option to put in the ****Order variable.\r | |
355 | \r | |
356 | @retval EFI_SUCCESS The *#### have been successfully registered.\r | |
357 | @retval EFI_INVALID_PARAMETER The option number exceeds 0xFFFF.\r | |
358 | @retval EFI_ALREADY_STARTED The option number of Option is being used already.\r | |
359 | Note: this API only adds new load option, no replacement support.\r | |
360 | @retval EFI_OUT_OF_RESOURCES There is no free option number that can be used when the\r | |
361 | option number specified in the Option is LoadOptionNumberUnassigned.\r | |
362 | @return Status codes of gRT->SetVariable ().\r | |
363 | \r | |
364 | **/\r | |
365 | EFI_STATUS\r | |
366 | EFIAPI\r | |
367 | EfiBootManagerAddLoadOptionVariable (\r | |
368 | IN OUT EFI_BOOT_MANAGER_LOAD_OPTION *Option,\r | |
369 | IN UINTN Position\r | |
370 | )\r | |
371 | {\r | |
372 | EFI_STATUS Status;\r | |
373 | UINT16 OptionNumber;\r | |
374 | \r | |
375 | if (Option == NULL) {\r | |
376 | return EFI_INVALID_PARAMETER;\r | |
377 | }\r | |
378 | \r | |
379 | if ((Option->OptionType != LoadOptionTypeDriver) &&\r | |
380 | (Option->OptionType != LoadOptionTypeSysPrep) &&\r | |
381 | (Option->OptionType != LoadOptionTypeBoot)\r | |
382 | )\r | |
383 | {\r | |
384 | return EFI_INVALID_PARAMETER;\r | |
385 | }\r | |
386 | \r | |
387 | //\r | |
388 | // Get the free option number if the option number is unassigned\r | |
389 | //\r | |
390 | if (Option->OptionNumber == LoadOptionNumberUnassigned) {\r | |
391 | Status = BmGetFreeOptionNumber (Option->OptionType, &OptionNumber);\r | |
392 | if (EFI_ERROR (Status)) {\r | |
393 | return Status;\r | |
394 | }\r | |
395 | \r | |
396 | Option->OptionNumber = OptionNumber;\r | |
397 | }\r | |
398 | \r | |
399 | if (Option->OptionNumber >= LoadOptionNumberMax) {\r | |
400 | return EFI_INVALID_PARAMETER;\r | |
401 | }\r | |
402 | \r | |
403 | Status = BmAddOptionNumberToOrderVariable (mBmLoadOptionOrderName[Option->OptionType], (UINT16)Option->OptionNumber, Position);\r | |
404 | if (!EFI_ERROR (Status)) {\r | |
405 | //\r | |
406 | // Save the Boot#### or Driver#### variable\r | |
407 | //\r | |
408 | Status = EfiBootManagerLoadOptionToVariable (Option);\r | |
409 | if (EFI_ERROR (Status)) {\r | |
410 | //\r | |
411 | // Remove the #### from *Order variable when the Driver####/SysPrep####/Boot#### cannot be saved.\r | |
412 | //\r | |
413 | EfiBootManagerDeleteLoadOptionVariable (Option->OptionNumber, Option->OptionType);\r | |
414 | }\r | |
415 | }\r | |
416 | \r | |
417 | return Status;\r | |
418 | }\r | |
419 | \r | |
420 | /**\r | |
421 | Sort the load option. The DriverOrder or BootOrder will be re-created to\r | |
422 | reflect the new order.\r | |
423 | \r | |
424 | @param OptionType Load option type\r | |
425 | @param CompareFunction The comparator\r | |
426 | **/\r | |
427 | VOID\r | |
428 | EFIAPI\r | |
429 | EfiBootManagerSortLoadOptionVariable (\r | |
430 | EFI_BOOT_MANAGER_LOAD_OPTION_TYPE OptionType,\r | |
431 | SORT_COMPARE CompareFunction\r | |
432 | )\r | |
433 | {\r | |
434 | EFI_STATUS Status;\r | |
435 | EFI_BOOT_MANAGER_LOAD_OPTION *LoadOption;\r | |
436 | UINTN LoadOptionCount;\r | |
437 | UINTN Index;\r | |
438 | UINT16 *OptionOrder;\r | |
439 | \r | |
440 | LoadOption = EfiBootManagerGetLoadOptions (&LoadOptionCount, OptionType);\r | |
441 | \r | |
442 | //\r | |
443 | // Insertion sort algorithm\r | |
444 | //\r | |
445 | PerformQuickSort (\r | |
446 | LoadOption,\r | |
447 | LoadOptionCount,\r | |
448 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION),\r | |
449 | CompareFunction\r | |
450 | );\r | |
451 | \r | |
452 | //\r | |
453 | // Create new ****Order variable\r | |
454 | //\r | |
455 | OptionOrder = AllocatePool (LoadOptionCount * sizeof (UINT16));\r | |
456 | ASSERT (OptionOrder != NULL);\r | |
457 | for (Index = 0; Index < LoadOptionCount; Index++) {\r | |
458 | OptionOrder[Index] = (UINT16)LoadOption[Index].OptionNumber;\r | |
459 | }\r | |
460 | \r | |
461 | Status = gRT->SetVariable (\r | |
462 | mBmLoadOptionOrderName[OptionType],\r | |
463 | &gEfiGlobalVariableGuid,\r | |
464 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
465 | LoadOptionCount * sizeof (UINT16),\r | |
466 | OptionOrder\r | |
467 | );\r | |
468 | //\r | |
469 | // Changing the *Order content without increasing its size with current variable implementation shouldn't fail.\r | |
470 | //\r | |
471 | ASSERT_EFI_ERROR (Status);\r | |
472 | \r | |
473 | FreePool (OptionOrder);\r | |
474 | EfiBootManagerFreeLoadOptions (LoadOption, LoadOptionCount);\r | |
475 | }\r | |
476 | \r | |
477 | /**\r | |
478 | Initialize a load option.\r | |
479 | \r | |
480 | @param Option Pointer to the load option to be initialized.\r | |
481 | @param OptionNumber Option number of the load option.\r | |
482 | @param OptionType Type of the load option.\r | |
483 | @param Attributes Attributes of the load option.\r | |
484 | @param Description Description of the load option.\r | |
485 | @param FilePath Device path of the load option.\r | |
486 | @param OptionalData Optional data of the load option.\r | |
487 | @param OptionalDataSize Size of the optional data of the load option.\r | |
488 | \r | |
489 | @retval EFI_SUCCESS The load option was initialized successfully.\r | |
490 | @retval EFI_INVALID_PARAMETER Option, Description or FilePath is NULL.\r | |
491 | **/\r | |
492 | EFI_STATUS\r | |
493 | EFIAPI\r | |
494 | EfiBootManagerInitializeLoadOption (\r | |
495 | IN OUT EFI_BOOT_MANAGER_LOAD_OPTION *Option,\r | |
496 | IN UINTN OptionNumber,\r | |
497 | IN EFI_BOOT_MANAGER_LOAD_OPTION_TYPE OptionType,\r | |
498 | IN UINT32 Attributes,\r | |
499 | IN CHAR16 *Description,\r | |
500 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
501 | IN UINT8 *OptionalData OPTIONAL,\r | |
502 | IN UINT32 OptionalDataSize\r | |
503 | )\r | |
504 | {\r | |
505 | if ((Option == NULL) || (Description == NULL) || (FilePath == NULL)) {\r | |
506 | return EFI_INVALID_PARAMETER;\r | |
507 | }\r | |
508 | \r | |
509 | if (((OptionalData != NULL) && (OptionalDataSize == 0)) ||\r | |
510 | ((OptionalData == NULL) && (OptionalDataSize != 0)))\r | |
511 | {\r | |
512 | return EFI_INVALID_PARAMETER;\r | |
513 | }\r | |
514 | \r | |
515 | if ((UINT32)OptionType >= LoadOptionTypeMax) {\r | |
516 | return EFI_INVALID_PARAMETER;\r | |
517 | }\r | |
518 | \r | |
519 | ZeroMem (Option, sizeof (EFI_BOOT_MANAGER_LOAD_OPTION));\r | |
520 | Option->OptionNumber = OptionNumber;\r | |
521 | Option->OptionType = OptionType;\r | |
522 | Option->Attributes = Attributes;\r | |
523 | Option->Description = AllocateCopyPool (StrSize (Description), Description);\r | |
524 | Option->FilePath = DuplicateDevicePath (FilePath);\r | |
525 | if (OptionalData != NULL) {\r | |
526 | Option->OptionalData = AllocateCopyPool (OptionalDataSize, OptionalData);\r | |
527 | Option->OptionalDataSize = OptionalDataSize;\r | |
528 | }\r | |
529 | \r | |
530 | return EFI_SUCCESS;\r | |
531 | }\r | |
532 | \r | |
533 | /**\r | |
534 | Return the index of the load option in the load option array.\r | |
535 | \r | |
536 | The function consider two load options are equal when the\r | |
537 | OptionType, Attributes, Description, FilePath and OptionalData are equal.\r | |
538 | \r | |
539 | @param Key Pointer to the load option to be found.\r | |
540 | @param Array Pointer to the array of load options to be found.\r | |
541 | @param Count Number of entries in the Array.\r | |
542 | \r | |
543 | @retval -1 Key wasn't found in the Array.\r | |
544 | @retval 0 ~ Count-1 The index of the Key in the Array.\r | |
545 | **/\r | |
546 | INTN\r | |
547 | EFIAPI\r | |
548 | EfiBootManagerFindLoadOption (\r | |
549 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Key,\r | |
550 | IN CONST EFI_BOOT_MANAGER_LOAD_OPTION *Array,\r | |
551 | IN UINTN Count\r | |
552 | )\r | |
553 | {\r | |
554 | UINTN Index;\r | |
555 | \r | |
556 | for (Index = 0; Index < Count; Index++) {\r | |
557 | if ((Key->OptionType == Array[Index].OptionType) &&\r | |
558 | (Key->Attributes == Array[Index].Attributes) &&\r | |
559 | (StrCmp (Key->Description, Array[Index].Description) == 0) &&\r | |
560 | (CompareMem (Key->FilePath, Array[Index].FilePath, GetDevicePathSize (Key->FilePath)) == 0) &&\r | |
561 | (Key->OptionalDataSize == Array[Index].OptionalDataSize) &&\r | |
562 | (CompareMem (Key->OptionalData, Array[Index].OptionalData, Key->OptionalDataSize) == 0))\r | |
563 | {\r | |
564 | return (INTN)Index;\r | |
565 | }\r | |
566 | }\r | |
567 | \r | |
568 | return -1;\r | |
569 | }\r | |
570 | \r | |
571 | /**\r | |
572 | Delete the load option.\r | |
573 | \r | |
574 | @param OptionNumber Indicate the option number of load option\r | |
575 | @param OptionType Indicate the type of load option\r | |
576 | \r | |
577 | @retval EFI_INVALID_PARAMETER OptionType or OptionNumber is invalid.\r | |
578 | @retval EFI_NOT_FOUND The load option cannot be found\r | |
579 | @retval EFI_SUCCESS The load option was deleted\r | |
580 | @retval others Status of RT->SetVariable()\r | |
581 | **/\r | |
582 | EFI_STATUS\r | |
583 | EFIAPI\r | |
584 | EfiBootManagerDeleteLoadOptionVariable (\r | |
585 | IN UINTN OptionNumber,\r | |
586 | IN EFI_BOOT_MANAGER_LOAD_OPTION_TYPE OptionType\r | |
587 | )\r | |
588 | {\r | |
589 | UINT16 *OptionOrder;\r | |
590 | UINTN OptionOrderSize;\r | |
591 | UINTN Index;\r | |
592 | CHAR16 OptionName[BM_OPTION_NAME_LEN];\r | |
593 | \r | |
594 | if (((UINT32)OptionType >= LoadOptionTypeMax) || (OptionNumber >= LoadOptionNumberMax)) {\r | |
595 | return EFI_INVALID_PARAMETER;\r | |
596 | }\r | |
597 | \r | |
598 | if ((OptionType == LoadOptionTypeDriver) || (OptionType == LoadOptionTypeSysPrep) || (OptionType == LoadOptionTypeBoot)) {\r | |
599 | //\r | |
600 | // If the associated *Order exists, firstly remove the reference in *Order for\r | |
601 | // Driver####, SysPrep#### and Boot####.\r | |
602 | //\r | |
603 | GetEfiGlobalVariable2 (mBmLoadOptionOrderName[OptionType], (VOID **)&OptionOrder, &OptionOrderSize);\r | |
604 | ASSERT ((OptionOrder != NULL && OptionOrderSize != 0) || (OptionOrder == NULL && OptionOrderSize == 0));\r | |
605 | \r | |
606 | for (Index = 0; Index < OptionOrderSize / sizeof (UINT16); Index++) {\r | |
607 | if (OptionOrder[Index] == OptionNumber) {\r | |
608 | OptionOrderSize -= sizeof (UINT16);\r | |
609 | CopyMem (&OptionOrder[Index], &OptionOrder[Index + 1], OptionOrderSize - Index * sizeof (UINT16));\r | |
610 | gRT->SetVariable (\r | |
611 | mBmLoadOptionOrderName[OptionType],\r | |
612 | &gEfiGlobalVariableGuid,\r | |
613 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
614 | OptionOrderSize,\r | |
615 | OptionOrder\r | |
616 | );\r | |
617 | break;\r | |
618 | }\r | |
619 | }\r | |
620 | \r | |
621 | if (OptionOrder != NULL) {\r | |
622 | FreePool (OptionOrder);\r | |
623 | }\r | |
624 | }\r | |
625 | \r | |
626 | //\r | |
627 | // Remove the Driver####, SysPrep####, Boot#### or PlatformRecovery#### itself.\r | |
628 | //\r | |
629 | UnicodeSPrint (OptionName, sizeof (OptionName), L"%s%04x", mBmLoadOptionName[OptionType], OptionNumber);\r | |
630 | return gRT->SetVariable (\r | |
631 | OptionName,\r | |
632 | &gEfiGlobalVariableGuid,\r | |
633 | 0,\r | |
634 | 0,\r | |
635 | NULL\r | |
636 | );\r | |
637 | }\r | |
638 | \r | |
639 | /**\r | |
640 | Returns the size of a device path in bytes.\r | |
641 | \r | |
642 | This function returns the size, in bytes, of the device path data structure\r | |
643 | specified by DevicePath including the end of device path node. If DevicePath\r | |
644 | is NULL, then 0 is returned. If the length of the device path is bigger than\r | |
645 | MaxSize, also return 0 to indicate this is an invalidate device path.\r | |
646 | \r | |
647 | @param DevicePath A pointer to a device path data structure.\r | |
648 | @param MaxSize Max valid device path size. If big than this size,\r | |
649 | return error.\r | |
650 | \r | |
651 | @retval 0 An invalid device path.\r | |
652 | @retval Others The size of a device path in bytes.\r | |
653 | \r | |
654 | **/\r | |
655 | UINTN\r | |
656 | BmGetDevicePathSizeEx (\r | |
657 | IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
658 | IN UINTN MaxSize\r | |
659 | )\r | |
660 | {\r | |
661 | UINTN Size;\r | |
662 | UINTN NodeSize;\r | |
663 | \r | |
664 | if (DevicePath == NULL) {\r | |
665 | return 0;\r | |
666 | }\r | |
667 | \r | |
668 | //\r | |
669 | // Search for the end of the device path structure\r | |
670 | //\r | |
671 | Size = 0;\r | |
672 | while (!IsDevicePathEnd (DevicePath)) {\r | |
673 | NodeSize = DevicePathNodeLength (DevicePath);\r | |
674 | if (NodeSize == 0) {\r | |
675 | return 0;\r | |
676 | }\r | |
677 | \r | |
678 | Size += NodeSize;\r | |
679 | if (Size > MaxSize) {\r | |
680 | return 0;\r | |
681 | }\r | |
682 | \r | |
683 | DevicePath = NextDevicePathNode (DevicePath);\r | |
684 | }\r | |
685 | \r | |
686 | Size += DevicePathNodeLength (DevicePath);\r | |
687 | if (Size > MaxSize) {\r | |
688 | return 0;\r | |
689 | }\r | |
690 | \r | |
691 | return Size;\r | |
692 | }\r | |
693 | \r | |
694 | /**\r | |
695 | Returns the length of a Null-terminated Unicode string. If the length is\r | |
696 | bigger than MaxStringLen, return length 0 to indicate that this is an\r | |
697 | invalidate string.\r | |
698 | \r | |
699 | This function returns the number of Unicode characters in the Null-terminated\r | |
700 | Unicode string specified by String.\r | |
701 | \r | |
702 | If String is NULL, then ASSERT().\r | |
703 | If String is not aligned on a 16-bit boundary, then ASSERT().\r | |
704 | \r | |
705 | @param String A pointer to a Null-terminated Unicode string.\r | |
706 | @param MaxStringLen Max string len in this string.\r | |
707 | \r | |
708 | @retval 0 An invalid string.\r | |
709 | @retval Others The length of String.\r | |
710 | \r | |
711 | **/\r | |
712 | UINTN\r | |
713 | BmStrSizeEx (\r | |
714 | IN CONST CHAR16 *String,\r | |
715 | IN UINTN MaxStringLen\r | |
716 | )\r | |
717 | {\r | |
718 | UINTN Length;\r | |
719 | \r | |
720 | ASSERT (String != NULL && MaxStringLen != 0);\r | |
721 | ASSERT (((UINTN)String & BIT0) == 0);\r | |
722 | \r | |
723 | for (Length = 0; *String != L'\0' && MaxStringLen != Length; String++, Length += 2) {\r | |
724 | }\r | |
725 | \r | |
726 | if ((*String != L'\0') && (MaxStringLen == Length)) {\r | |
727 | return 0;\r | |
728 | }\r | |
729 | \r | |
730 | return Length + 2;\r | |
731 | }\r | |
732 | \r | |
733 | /**\r | |
734 | Validate the Boot####, Driver####, SysPrep#### and PlatformRecovery####\r | |
735 | variable (VendorGuid/Name)\r | |
736 | \r | |
737 | @param Variable The variable data.\r | |
738 | @param VariableSize The variable size.\r | |
739 | \r | |
740 | @retval TRUE The variable data is correct.\r | |
741 | @retval FALSE The variable data is corrupted.\r | |
742 | \r | |
743 | **/\r | |
744 | BOOLEAN\r | |
745 | BmValidateOption (\r | |
746 | UINT8 *Variable,\r | |
747 | UINTN VariableSize\r | |
748 | )\r | |
749 | {\r | |
750 | UINT16 FilePathSize;\r | |
751 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
752 | UINTN DescriptionSize;\r | |
753 | \r | |
754 | if (VariableSize <= sizeof (UINT16) + sizeof (UINT32)) {\r | |
755 | return FALSE;\r | |
756 | }\r | |
757 | \r | |
758 | //\r | |
759 | // Skip the option attribute\r | |
760 | //\r | |
761 | Variable += sizeof (UINT32);\r | |
762 | \r | |
763 | //\r | |
764 | // Get the option's device path size\r | |
765 | //\r | |
766 | FilePathSize = ReadUnaligned16 ((UINT16 *)Variable);\r | |
767 | Variable += sizeof (UINT16);\r | |
768 | \r | |
769 | //\r | |
770 | // Get the option's description string size\r | |
771 | //\r | |
772 | DescriptionSize = BmStrSizeEx ((CHAR16 *)Variable, VariableSize - sizeof (UINT16) - sizeof (UINT32));\r | |
773 | Variable += DescriptionSize;\r | |
774 | \r | |
775 | //\r | |
776 | // Get the option's device path\r | |
777 | //\r | |
778 | DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)Variable;\r | |
779 | \r | |
780 | //\r | |
781 | // Validation boot option variable.\r | |
782 | //\r | |
783 | if ((FilePathSize == 0) || (DescriptionSize == 0)) {\r | |
784 | return FALSE;\r | |
785 | }\r | |
786 | \r | |
787 | if (sizeof (UINT32) + sizeof (UINT16) + DescriptionSize + FilePathSize > VariableSize) {\r | |
788 | return FALSE;\r | |
789 | }\r | |
790 | \r | |
791 | return (BOOLEAN)(BmGetDevicePathSizeEx (DevicePath, FilePathSize) != 0);\r | |
792 | }\r | |
793 | \r | |
794 | /**\r | |
795 | Check whether the VariableName is a valid load option variable name\r | |
796 | and return the load option type and option number.\r | |
797 | \r | |
798 | @param VariableName The name of the load option variable.\r | |
799 | @param OptionType Return the load option type.\r | |
800 | @param OptionNumber Return the load option number.\r | |
801 | \r | |
802 | @retval TRUE The variable name is valid; The load option type and\r | |
803 | load option number is returned.\r | |
804 | @retval FALSE The variable name is NOT valid.\r | |
805 | **/\r | |
806 | BOOLEAN\r | |
807 | EFIAPI\r | |
808 | EfiBootManagerIsValidLoadOptionVariableName (\r | |
809 | IN CHAR16 *VariableName,\r | |
810 | OUT EFI_BOOT_MANAGER_LOAD_OPTION_TYPE *OptionType OPTIONAL,\r | |
811 | OUT UINT16 *OptionNumber OPTIONAL\r | |
812 | )\r | |
813 | {\r | |
814 | UINTN VariableNameLen;\r | |
815 | UINTN Index;\r | |
816 | UINTN Uint;\r | |
817 | EFI_BOOT_MANAGER_LOAD_OPTION_TYPE LocalOptionType;\r | |
818 | UINT16 LocalOptionNumber;\r | |
819 | \r | |
820 | if (VariableName == NULL) {\r | |
821 | return FALSE;\r | |
822 | }\r | |
823 | \r | |
824 | VariableNameLen = StrLen (VariableName);\r | |
825 | \r | |
826 | //\r | |
827 | // Return FALSE when the variable name length is too small.\r | |
828 | //\r | |
829 | if (VariableNameLen <= 4) {\r | |
830 | return FALSE;\r | |
831 | }\r | |
832 | \r | |
833 | //\r | |
834 | // Return FALSE when the variable name doesn't start with Driver/SysPrep/Boot/PlatformRecovery.\r | |
835 | //\r | |
836 | for (LocalOptionType = 0; LocalOptionType < ARRAY_SIZE (mBmLoadOptionName); LocalOptionType++) {\r | |
837 | if ((VariableNameLen - 4 == StrLen (mBmLoadOptionName[LocalOptionType])) &&\r | |
838 | (StrnCmp (VariableName, mBmLoadOptionName[LocalOptionType], VariableNameLen - 4) == 0)\r | |
839 | )\r | |
840 | {\r | |
841 | break;\r | |
842 | }\r | |
843 | }\r | |
844 | \r | |
845 | if (LocalOptionType == ARRAY_SIZE (mBmLoadOptionName)) {\r | |
846 | return FALSE;\r | |
847 | }\r | |
848 | \r | |
849 | //\r | |
850 | // Return FALSE when the last four characters are not hex digits.\r | |
851 | //\r | |
852 | LocalOptionNumber = 0;\r | |
853 | for (Index = VariableNameLen - 4; Index < VariableNameLen; Index++) {\r | |
854 | Uint = BmCharToUint (VariableName[Index]);\r | |
855 | if (Uint == -1) {\r | |
856 | break;\r | |
857 | } else {\r | |
858 | LocalOptionNumber = (UINT16)Uint + LocalOptionNumber * 0x10;\r | |
859 | }\r | |
860 | }\r | |
861 | \r | |
862 | if (Index != VariableNameLen) {\r | |
863 | return FALSE;\r | |
864 | }\r | |
865 | \r | |
866 | if (OptionType != NULL) {\r | |
867 | *OptionType = LocalOptionType;\r | |
868 | }\r | |
869 | \r | |
870 | if (OptionNumber != NULL) {\r | |
871 | *OptionNumber = LocalOptionNumber;\r | |
872 | }\r | |
873 | \r | |
874 | return TRUE;\r | |
875 | }\r | |
876 | \r | |
877 | /**\r | |
878 | Build the Boot#### or Driver#### option from the VariableName.\r | |
879 | \r | |
880 | @param VariableName Variable name of the load option\r | |
881 | @param VendorGuid Variable GUID of the load option\r | |
882 | @param Option Return the load option.\r | |
883 | \r | |
884 | @retval EFI_SUCCESS Get the option just been created\r | |
885 | @retval EFI_NOT_FOUND Failed to get the new option\r | |
886 | \r | |
887 | **/\r | |
888 | EFI_STATUS\r | |
889 | EFIAPI\r | |
890 | EfiBootManagerVariableToLoadOptionEx (\r | |
891 | IN CHAR16 *VariableName,\r | |
892 | IN EFI_GUID *VendorGuid,\r | |
893 | IN OUT EFI_BOOT_MANAGER_LOAD_OPTION *Option\r | |
894 | )\r | |
895 | {\r | |
896 | EFI_STATUS Status;\r | |
897 | UINT32 Attribute;\r | |
898 | UINT16 FilePathSize;\r | |
899 | UINT8 *Variable;\r | |
900 | UINT8 *VariablePtr;\r | |
901 | UINTN VariableSize;\r | |
902 | EFI_DEVICE_PATH_PROTOCOL *FilePath;\r | |
903 | UINT8 *OptionalData;\r | |
904 | UINT32 OptionalDataSize;\r | |
905 | CHAR16 *Description;\r | |
906 | EFI_BOOT_MANAGER_LOAD_OPTION_TYPE OptionType;\r | |
907 | UINT16 OptionNumber;\r | |
908 | \r | |
909 | if ((VariableName == NULL) || (Option == NULL)) {\r | |
910 | return EFI_INVALID_PARAMETER;\r | |
911 | }\r | |
912 | \r | |
913 | if (!EfiBootManagerIsValidLoadOptionVariableName (VariableName, &OptionType, &OptionNumber)) {\r | |
914 | return EFI_INVALID_PARAMETER;\r | |
915 | }\r | |
916 | \r | |
917 | //\r | |
918 | // Read the variable\r | |
919 | //\r | |
920 | GetVariable2 (VariableName, VendorGuid, (VOID **)&Variable, &VariableSize);\r | |
921 | if (Variable == NULL) {\r | |
922 | return EFI_NOT_FOUND;\r | |
923 | }\r | |
924 | \r | |
925 | //\r | |
926 | // Validate *#### variable data.\r | |
927 | //\r | |
928 | if (!BmValidateOption (Variable, VariableSize)) {\r | |
929 | FreePool (Variable);\r | |
930 | return EFI_INVALID_PARAMETER;\r | |
931 | }\r | |
932 | \r | |
933 | //\r | |
934 | // Get the option attribute\r | |
935 | //\r | |
936 | VariablePtr = Variable;\r | |
937 | Attribute = ReadUnaligned32 ((UINT32 *)VariablePtr);\r | |
938 | VariablePtr += sizeof (UINT32);\r | |
939 | \r | |
940 | //\r | |
941 | // Get the option's device path size\r | |
942 | //\r | |
943 | FilePathSize = ReadUnaligned16 ((UINT16 *)VariablePtr);\r | |
944 | VariablePtr += sizeof (UINT16);\r | |
945 | \r | |
946 | //\r | |
947 | // Get the option's description string\r | |
948 | //\r | |
949 | Description = (CHAR16 *)VariablePtr;\r | |
950 | \r | |
951 | //\r | |
952 | // Get the option's description string size\r | |
953 | //\r | |
954 | VariablePtr += StrSize ((CHAR16 *)VariablePtr);\r | |
955 | \r | |
956 | //\r | |
957 | // Get the option's device path\r | |
958 | //\r | |
959 | FilePath = (EFI_DEVICE_PATH_PROTOCOL *)VariablePtr;\r | |
960 | VariablePtr += FilePathSize;\r | |
961 | \r | |
962 | OptionalDataSize = (UINT32)(VariableSize - ((UINTN)VariablePtr - (UINTN)Variable));\r | |
963 | if (OptionalDataSize == 0) {\r | |
964 | OptionalData = NULL;\r | |
965 | } else {\r | |
966 | OptionalData = VariablePtr;\r | |
967 | }\r | |
968 | \r | |
969 | Status = EfiBootManagerInitializeLoadOption (\r | |
970 | Option,\r | |
971 | OptionNumber,\r | |
972 | OptionType,\r | |
973 | Attribute,\r | |
974 | Description,\r | |
975 | FilePath,\r | |
976 | OptionalData,\r | |
977 | OptionalDataSize\r | |
978 | );\r | |
979 | ASSERT_EFI_ERROR (Status);\r | |
980 | \r | |
981 | CopyGuid (&Option->VendorGuid, VendorGuid);\r | |
982 | \r | |
983 | FreePool (Variable);\r | |
984 | return Status;\r | |
985 | }\r | |
986 | \r | |
987 | /**\r | |
988 | Build the Boot#### or Driver#### option from the VariableName.\r | |
989 | \r | |
990 | @param VariableName EFI Variable name indicate if it is Boot#### or Driver####\r | |
991 | @param Option Return the Boot#### or Driver#### option.\r | |
992 | \r | |
993 | @retval EFI_SUCCESS Get the option just been created\r | |
994 | @retval EFI_NOT_FOUND Failed to get the new option\r | |
995 | **/\r | |
996 | EFI_STATUS\r | |
997 | EFIAPI\r | |
998 | EfiBootManagerVariableToLoadOption (\r | |
999 | IN CHAR16 *VariableName,\r | |
1000 | IN OUT EFI_BOOT_MANAGER_LOAD_OPTION *Option\r | |
1001 | )\r | |
1002 | {\r | |
1003 | return EfiBootManagerVariableToLoadOptionEx (VariableName, &gEfiGlobalVariableGuid, Option);\r | |
1004 | }\r | |
1005 | \r | |
1006 | typedef struct {\r | |
1007 | EFI_BOOT_MANAGER_LOAD_OPTION_TYPE OptionType;\r | |
1008 | EFI_GUID *Guid;\r | |
1009 | EFI_BOOT_MANAGER_LOAD_OPTION *Options;\r | |
1010 | UINTN OptionCount;\r | |
1011 | } BM_COLLECT_LOAD_OPTIONS_PARAM;\r | |
1012 | \r | |
1013 | /**\r | |
1014 | Visitor function to collect the Platform Recovery load options or OS Recovery\r | |
1015 | load options from NV storage.\r | |
1016 | \r | |
1017 | @param Name Variable name.\r | |
1018 | @param Guid Variable GUID.\r | |
1019 | @param Context The same context passed to BmForEachVariable.\r | |
1020 | **/\r | |
1021 | VOID\r | |
1022 | BmCollectLoadOptions (\r | |
1023 | IN CHAR16 *Name,\r | |
1024 | IN EFI_GUID *Guid,\r | |
1025 | IN VOID *Context\r | |
1026 | )\r | |
1027 | {\r | |
1028 | EFI_STATUS Status;\r | |
1029 | EFI_BOOT_MANAGER_LOAD_OPTION_TYPE OptionType;\r | |
1030 | UINT16 OptionNumber;\r | |
1031 | EFI_BOOT_MANAGER_LOAD_OPTION Option;\r | |
1032 | UINTN Index;\r | |
1033 | BM_COLLECT_LOAD_OPTIONS_PARAM *Param;\r | |
1034 | \r | |
1035 | Param = (BM_COLLECT_LOAD_OPTIONS_PARAM *)Context;\r | |
1036 | \r | |
1037 | if (CompareGuid (Guid, Param->Guid) && (\r | |
1038 | (Param->OptionType == LoadOptionTypePlatformRecovery) &&\r | |
1039 | EfiBootManagerIsValidLoadOptionVariableName (Name, &OptionType, &OptionNumber) &&\r | |
1040 | (OptionType == LoadOptionTypePlatformRecovery)\r | |
1041 | ))\r | |
1042 | {\r | |
1043 | Status = EfiBootManagerVariableToLoadOptionEx (Name, Guid, &Option);\r | |
1044 | if (!EFI_ERROR (Status)) {\r | |
1045 | for (Index = 0; Index < Param->OptionCount; Index++) {\r | |
1046 | if (Param->Options[Index].OptionNumber > Option.OptionNumber) {\r | |
1047 | break;\r | |
1048 | }\r | |
1049 | }\r | |
1050 | \r | |
1051 | Param->Options = ReallocatePool (\r | |
1052 | Param->OptionCount * sizeof (EFI_BOOT_MANAGER_LOAD_OPTION),\r | |
1053 | (Param->OptionCount + 1) * sizeof (EFI_BOOT_MANAGER_LOAD_OPTION),\r | |
1054 | Param->Options\r | |
1055 | );\r | |
1056 | ASSERT (Param->Options != NULL);\r | |
1057 | CopyMem (&Param->Options[Index + 1], &Param->Options[Index], (Param->OptionCount - Index) * sizeof (EFI_BOOT_MANAGER_LOAD_OPTION));\r | |
1058 | CopyMem (&Param->Options[Index], &Option, sizeof (EFI_BOOT_MANAGER_LOAD_OPTION));\r | |
1059 | Param->OptionCount++;\r | |
1060 | }\r | |
1061 | }\r | |
1062 | }\r | |
1063 | \r | |
1064 | /**\r | |
1065 | Returns an array of load options based on the EFI variable\r | |
1066 | L"BootOrder"/L"DriverOrder" and the L"Boot####"/L"Driver####" variables impled by it.\r | |
1067 | #### is the hex value of the UINT16 in each BootOrder/DriverOrder entry.\r | |
1068 | \r | |
1069 | @param LoadOptionCount Returns number of entries in the array.\r | |
1070 | @param LoadOptionType The type of the load option.\r | |
1071 | \r | |
1072 | @retval NULL No load options exist.\r | |
1073 | @retval !NULL Array of load option entries.\r | |
1074 | \r | |
1075 | **/\r | |
1076 | EFI_BOOT_MANAGER_LOAD_OPTION *\r | |
1077 | EFIAPI\r | |
1078 | EfiBootManagerGetLoadOptions (\r | |
1079 | OUT UINTN *OptionCount,\r | |
1080 | IN EFI_BOOT_MANAGER_LOAD_OPTION_TYPE LoadOptionType\r | |
1081 | )\r | |
1082 | {\r | |
1083 | EFI_STATUS Status;\r | |
1084 | UINT16 *OptionOrder;\r | |
1085 | UINTN OptionOrderSize;\r | |
1086 | UINTN Index;\r | |
1087 | UINTN OptionIndex;\r | |
1088 | EFI_BOOT_MANAGER_LOAD_OPTION *Options;\r | |
1089 | CHAR16 OptionName[BM_OPTION_NAME_LEN];\r | |
1090 | UINT16 OptionNumber;\r | |
1091 | BM_COLLECT_LOAD_OPTIONS_PARAM Param;\r | |
1092 | \r | |
1093 | *OptionCount = 0;\r | |
1094 | Options = NULL;\r | |
1095 | \r | |
1096 | if ((LoadOptionType == LoadOptionTypeDriver) || (LoadOptionType == LoadOptionTypeSysPrep) || (LoadOptionType == LoadOptionTypeBoot)) {\r | |
1097 | //\r | |
1098 | // Read the BootOrder, or DriverOrder variable.\r | |
1099 | //\r | |
1100 | GetEfiGlobalVariable2 (mBmLoadOptionOrderName[LoadOptionType], (VOID **)&OptionOrder, &OptionOrderSize);\r | |
1101 | if (OptionOrder == NULL) {\r | |
1102 | return NULL;\r | |
1103 | }\r | |
1104 | \r | |
1105 | *OptionCount = OptionOrderSize / sizeof (UINT16);\r | |
1106 | \r | |
1107 | Options = AllocatePool (*OptionCount * sizeof (EFI_BOOT_MANAGER_LOAD_OPTION));\r | |
1108 | ASSERT (Options != NULL);\r | |
1109 | \r | |
1110 | OptionIndex = 0;\r | |
1111 | for (Index = 0; Index < *OptionCount; Index++) {\r | |
1112 | OptionNumber = OptionOrder[Index];\r | |
1113 | UnicodeSPrint (OptionName, sizeof (OptionName), L"%s%04x", mBmLoadOptionName[LoadOptionType], OptionNumber);\r | |
1114 | \r | |
1115 | Status = EfiBootManagerVariableToLoadOption (OptionName, &Options[OptionIndex]);\r | |
1116 | if (EFI_ERROR (Status)) {\r | |
1117 | DEBUG ((DEBUG_INFO, "[Bds] %s doesn't exist - Update ****Order variable to remove the reference!!", OptionName));\r | |
1118 | EfiBootManagerDeleteLoadOptionVariable (OptionNumber, LoadOptionType);\r | |
1119 | } else {\r | |
1120 | ASSERT (Options[OptionIndex].OptionNumber == OptionNumber);\r | |
1121 | OptionIndex++;\r | |
1122 | }\r | |
1123 | }\r | |
1124 | \r | |
1125 | if (OptionOrder != NULL) {\r | |
1126 | FreePool (OptionOrder);\r | |
1127 | }\r | |
1128 | \r | |
1129 | if (OptionIndex < *OptionCount) {\r | |
1130 | Options = ReallocatePool (*OptionCount * sizeof (EFI_BOOT_MANAGER_LOAD_OPTION), OptionIndex * sizeof (EFI_BOOT_MANAGER_LOAD_OPTION), Options);\r | |
1131 | ASSERT (Options != NULL);\r | |
1132 | *OptionCount = OptionIndex;\r | |
1133 | }\r | |
1134 | } else if (LoadOptionType == LoadOptionTypePlatformRecovery) {\r | |
1135 | Param.OptionType = LoadOptionTypePlatformRecovery;\r | |
1136 | Param.Options = NULL;\r | |
1137 | Param.OptionCount = 0;\r | |
1138 | Param.Guid = &gEfiGlobalVariableGuid;\r | |
1139 | \r | |
1140 | BmForEachVariable (BmCollectLoadOptions, (VOID *)&Param);\r | |
1141 | \r | |
1142 | *OptionCount = Param.OptionCount;\r | |
1143 | Options = Param.Options;\r | |
1144 | }\r | |
1145 | \r | |
1146 | return Options;\r | |
1147 | }\r | |
1148 | \r | |
1149 | /**\r | |
1150 | Free an EFI_BOOT_MANGER_LOAD_OPTION entry that was allocate by the library.\r | |
1151 | \r | |
1152 | @param LoadOption Pointer to boot option to Free.\r | |
1153 | \r | |
1154 | @return EFI_SUCCESS BootOption was freed\r | |
1155 | @return EFI_NOT_FOUND BootOption == NULL\r | |
1156 | \r | |
1157 | **/\r | |
1158 | EFI_STATUS\r | |
1159 | EFIAPI\r | |
1160 | EfiBootManagerFreeLoadOption (\r | |
1161 | IN EFI_BOOT_MANAGER_LOAD_OPTION *LoadOption\r | |
1162 | )\r | |
1163 | {\r | |
1164 | if (LoadOption == NULL) {\r | |
1165 | return EFI_NOT_FOUND;\r | |
1166 | }\r | |
1167 | \r | |
1168 | if (LoadOption->Description != NULL) {\r | |
1169 | FreePool (LoadOption->Description);\r | |
1170 | }\r | |
1171 | \r | |
1172 | if (LoadOption->FilePath != NULL) {\r | |
1173 | FreePool (LoadOption->FilePath);\r | |
1174 | }\r | |
1175 | \r | |
1176 | if (LoadOption->OptionalData != NULL) {\r | |
1177 | FreePool (LoadOption->OptionalData);\r | |
1178 | }\r | |
1179 | \r | |
1180 | return EFI_SUCCESS;\r | |
1181 | }\r | |
1182 | \r | |
1183 | /**\r | |
1184 | Free an EFI_BOOT_MANGER_LOAD_OPTION array that was allocated by\r | |
1185 | EfiBootManagerGetLoadOptions().\r | |
1186 | \r | |
1187 | @param Option Pointer to boot option array to free.\r | |
1188 | @param OptionCount Number of array entries in BootOption\r | |
1189 | \r | |
1190 | @return EFI_SUCCESS BootOption was freed\r | |
1191 | @return EFI_NOT_FOUND BootOption == NULL\r | |
1192 | \r | |
1193 | **/\r | |
1194 | EFI_STATUS\r | |
1195 | EFIAPI\r | |
1196 | EfiBootManagerFreeLoadOptions (\r | |
1197 | IN EFI_BOOT_MANAGER_LOAD_OPTION *Option,\r | |
1198 | IN UINTN OptionCount\r | |
1199 | )\r | |
1200 | {\r | |
1201 | UINTN Index;\r | |
1202 | \r | |
1203 | if (Option == NULL) {\r | |
1204 | return EFI_NOT_FOUND;\r | |
1205 | }\r | |
1206 | \r | |
1207 | for (Index = 0; Index < OptionCount; Index++) {\r | |
1208 | EfiBootManagerFreeLoadOption (&Option[Index]);\r | |
1209 | }\r | |
1210 | \r | |
1211 | FreePool (Option);\r | |
1212 | \r | |
1213 | return EFI_SUCCESS;\r | |
1214 | }\r | |
1215 | \r | |
1216 | /**\r | |
1217 | Return whether the PE header of the load option is valid or not.\r | |
1218 | \r | |
1219 | @param[in] Type The load option type.\r | |
1220 | It's used to check whether the load option is valid.\r | |
1221 | When it's LoadOptionTypeMax, the routine only guarantees\r | |
1222 | the load option is a valid PE image but doesn't guarantee\r | |
1223 | the PE's subsystem type is valid.\r | |
1224 | @param[in] FileBuffer The PE file buffer of the load option.\r | |
1225 | @param[in] FileSize The size of the load option file.\r | |
1226 | \r | |
1227 | @retval TRUE The PE header of the load option is valid.\r | |
1228 | @retval FALSE The PE header of the load option is not valid.\r | |
1229 | **/\r | |
1230 | BOOLEAN\r | |
1231 | BmIsLoadOptionPeHeaderValid (\r | |
1232 | IN EFI_BOOT_MANAGER_LOAD_OPTION_TYPE Type,\r | |
1233 | IN VOID *FileBuffer,\r | |
1234 | IN UINTN FileSize\r | |
1235 | )\r | |
1236 | {\r | |
1237 | EFI_IMAGE_DOS_HEADER *DosHeader;\r | |
1238 | EFI_IMAGE_OPTIONAL_HEADER_UNION *PeHeader;\r | |
1239 | EFI_IMAGE_OPTIONAL_HEADER32 *OptionalHeader;\r | |
1240 | UINT16 Subsystem;\r | |
1241 | \r | |
1242 | if ((FileBuffer == NULL) || (FileSize == 0)) {\r | |
1243 | return FALSE;\r | |
1244 | }\r | |
1245 | \r | |
1246 | //\r | |
1247 | // Read dos header\r | |
1248 | //\r | |
1249 | DosHeader = (EFI_IMAGE_DOS_HEADER *)FileBuffer;\r | |
1250 | if ((FileSize >= sizeof (EFI_IMAGE_DOS_HEADER)) &&\r | |
1251 | (FileSize > DosHeader->e_lfanew) && (DosHeader->e_magic == EFI_IMAGE_DOS_SIGNATURE)\r | |
1252 | )\r | |
1253 | {\r | |
1254 | //\r | |
1255 | // Read and check PE signature\r | |
1256 | //\r | |
1257 | PeHeader = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((UINT8 *)FileBuffer + DosHeader->e_lfanew);\r | |
1258 | if ((FileSize >= DosHeader->e_lfanew + sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION)) &&\r | |
1259 | (PeHeader->Pe32.Signature == EFI_IMAGE_NT_SIGNATURE)\r | |
1260 | )\r | |
1261 | {\r | |
1262 | //\r | |
1263 | // Check PE32 or PE32+ magic, and machine type\r | |
1264 | //\r | |
1265 | OptionalHeader = (EFI_IMAGE_OPTIONAL_HEADER32 *)&PeHeader->Pe32.OptionalHeader;\r | |
1266 | if ((OptionalHeader->Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) ||\r | |
1267 | (OptionalHeader->Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC))\r | |
1268 | {\r | |
1269 | //\r | |
1270 | // Check the Subsystem:\r | |
1271 | // Driver#### must be of type BootServiceDriver or RuntimeDriver\r | |
1272 | // SysPrep####, Boot####, OsRecovery####, PlatformRecovery#### must be of type Application\r | |
1273 | //\r | |
1274 | Subsystem = OptionalHeader->Subsystem;\r | |
1275 | if ((Type == LoadOptionTypeMax) ||\r | |
1276 | ((Type == LoadOptionTypeDriver) && (Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER)) ||\r | |
1277 | ((Type == LoadOptionTypeDriver) && (Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER)) ||\r | |
1278 | ((Type == LoadOptionTypeSysPrep) && (Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION)) ||\r | |
1279 | ((Type == LoadOptionTypeBoot) && (Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION)) ||\r | |
1280 | ((Type == LoadOptionTypePlatformRecovery) && (Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION))\r | |
1281 | )\r | |
1282 | {\r | |
1283 | return TRUE;\r | |
1284 | }\r | |
1285 | }\r | |
1286 | }\r | |
1287 | }\r | |
1288 | \r | |
1289 | return FALSE;\r | |
1290 | }\r | |
1291 | \r | |
1292 | /**\r | |
1293 | Return the next matched load option buffer.\r | |
1294 | The routine keeps calling BmGetNextLoadOptionDevicePath() until a valid\r | |
1295 | load option is read.\r | |
1296 | \r | |
1297 | @param Type The load option type.\r | |
1298 | It's used to check whether the load option is valid.\r | |
1299 | When it's LoadOptionTypeMax, the routine only guarantees\r | |
1300 | the load option is a valid PE image but doesn't guarantee\r | |
1301 | the PE's subsystem type is valid.\r | |
1302 | @param FilePath The device path pointing to a load option.\r | |
1303 | It could be a short-form device path.\r | |
1304 | @param FullPath Return the next full device path of the load option after\r | |
1305 | short-form device path expanding.\r | |
1306 | Caller is responsible to free it.\r | |
1307 | NULL to return the first matched full device path.\r | |
1308 | @param FileSize Return the load option size.\r | |
1309 | \r | |
1310 | @return The load option buffer. Caller is responsible to free the memory.\r | |
1311 | **/\r | |
1312 | VOID *\r | |
1313 | BmGetNextLoadOptionBuffer (\r | |
1314 | IN EFI_BOOT_MANAGER_LOAD_OPTION_TYPE Type,\r | |
1315 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
1316 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
1317 | OUT UINTN *FileSize\r | |
1318 | )\r | |
1319 | {\r | |
1320 | VOID *FileBuffer;\r | |
1321 | EFI_DEVICE_PATH_PROTOCOL *PreFullPath;\r | |
1322 | EFI_DEVICE_PATH_PROTOCOL *CurFullPath;\r | |
1323 | UINTN LocalFileSize;\r | |
1324 | UINT32 AuthenticationStatus;\r | |
1325 | EFI_DEVICE_PATH_PROTOCOL *RamDiskDevicePath;\r | |
1326 | \r | |
1327 | LocalFileSize = 0;\r | |
1328 | FileBuffer = NULL;\r | |
1329 | CurFullPath = *FullPath;\r | |
1330 | do {\r | |
1331 | PreFullPath = CurFullPath;\r | |
1332 | CurFullPath = BmGetNextLoadOptionDevicePath (FilePath, CurFullPath);\r | |
1333 | //\r | |
1334 | // Only free the full path created *inside* this routine\r | |
1335 | //\r | |
1336 | if ((PreFullPath != NULL) && (PreFullPath != *FullPath)) {\r | |
1337 | FreePool (PreFullPath);\r | |
1338 | }\r | |
1339 | \r | |
1340 | if (CurFullPath == NULL) {\r | |
1341 | break;\r | |
1342 | }\r | |
1343 | \r | |
1344 | FileBuffer = GetFileBufferByFilePath (TRUE, CurFullPath, &LocalFileSize, &AuthenticationStatus);\r | |
1345 | if ((FileBuffer != NULL) && !BmIsLoadOptionPeHeaderValid (Type, FileBuffer, LocalFileSize)) {\r | |
1346 | //\r | |
1347 | // Free the RAM disk file system if the load option is invalid.\r | |
1348 | //\r | |
1349 | RamDiskDevicePath = BmGetRamDiskDevicePath (FilePath);\r | |
1350 | if (RamDiskDevicePath != NULL) {\r | |
1351 | BmDestroyRamDisk (RamDiskDevicePath);\r | |
1352 | FreePool (RamDiskDevicePath);\r | |
1353 | }\r | |
1354 | \r | |
1355 | //\r | |
1356 | // Free the invalid load option buffer.\r | |
1357 | //\r | |
1358 | FreePool (FileBuffer);\r | |
1359 | FileBuffer = NULL;\r | |
1360 | }\r | |
1361 | } while (FileBuffer == NULL);\r | |
1362 | \r | |
1363 | if (FileBuffer == NULL) {\r | |
1364 | CurFullPath = NULL;\r | |
1365 | LocalFileSize = 0;\r | |
1366 | }\r | |
1367 | \r | |
1368 | DEBUG ((DEBUG_INFO, "[Bds] Expand "));\r | |
1369 | BmPrintDp (FilePath);\r | |
1370 | DEBUG ((DEBUG_INFO, " -> "));\r | |
1371 | BmPrintDp (CurFullPath);\r | |
1372 | DEBUG ((DEBUG_INFO, "\n"));\r | |
1373 | \r | |
1374 | *FullPath = CurFullPath;\r | |
1375 | *FileSize = LocalFileSize;\r | |
1376 | return FileBuffer;\r | |
1377 | }\r | |
1378 | \r | |
1379 | /**\r | |
1380 | Process (load and execute) the load option.\r | |
1381 | \r | |
1382 | @param LoadOption Pointer to the load option.\r | |
1383 | \r | |
1384 | @retval EFI_INVALID_PARAMETER The load option type is invalid,\r | |
1385 | or the load option file path doesn't point to a valid file.\r | |
1386 | @retval EFI_UNSUPPORTED The load option type is of LoadOptionTypeBoot.\r | |
1387 | @retval EFI_SUCCESS The load option is inactive, or successfully loaded and executed.\r | |
1388 | **/\r | |
1389 | EFI_STATUS\r | |
1390 | EFIAPI\r | |
1391 | EfiBootManagerProcessLoadOption (\r | |
1392 | IN EFI_BOOT_MANAGER_LOAD_OPTION *LoadOption\r | |
1393 | )\r | |
1394 | {\r | |
1395 | EFI_STATUS Status;\r | |
1396 | EFI_DEVICE_PATH_PROTOCOL *PreFullPath;\r | |
1397 | EFI_DEVICE_PATH_PROTOCOL *CurFullPath;\r | |
1398 | EFI_HANDLE ImageHandle;\r | |
1399 | EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;\r | |
1400 | VOID *FileBuffer;\r | |
1401 | UINTN FileSize;\r | |
1402 | \r | |
1403 | if ((UINT32)LoadOption->OptionType >= LoadOptionTypeMax) {\r | |
1404 | return EFI_INVALID_PARAMETER;\r | |
1405 | }\r | |
1406 | \r | |
1407 | if (LoadOption->OptionType == LoadOptionTypeBoot) {\r | |
1408 | return EFI_UNSUPPORTED;\r | |
1409 | }\r | |
1410 | \r | |
1411 | //\r | |
1412 | // If a load option is not marked as LOAD_OPTION_ACTIVE,\r | |
1413 | // the boot manager will not automatically load the option.\r | |
1414 | //\r | |
1415 | if ((LoadOption->Attributes & LOAD_OPTION_ACTIVE) == 0) {\r | |
1416 | return EFI_SUCCESS;\r | |
1417 | }\r | |
1418 | \r | |
1419 | //\r | |
1420 | // Load and start the load option.\r | |
1421 | //\r | |
1422 | DEBUG ((\r | |
1423 | DEBUG_INFO | DEBUG_LOAD,\r | |
1424 | "Process %s%04x (%s) ...\n",\r | |
1425 | mBmLoadOptionName[LoadOption->OptionType],\r | |
1426 | LoadOption->OptionNumber,\r | |
1427 | LoadOption->Description\r | |
1428 | ));\r | |
1429 | ImageHandle = NULL;\r | |
1430 | CurFullPath = NULL;\r | |
1431 | EfiBootManagerConnectDevicePath (LoadOption->FilePath, NULL);\r | |
1432 | \r | |
1433 | //\r | |
1434 | // while() loop is to keep starting next matched load option if the PlatformRecovery#### returns failure status.\r | |
1435 | //\r | |
1436 | while (TRUE) {\r | |
1437 | Status = EFI_INVALID_PARAMETER;\r | |
1438 | PreFullPath = CurFullPath;\r | |
1439 | FileBuffer = BmGetNextLoadOptionBuffer (LoadOption->OptionType, LoadOption->FilePath, &CurFullPath, &FileSize);\r | |
1440 | if (PreFullPath != NULL) {\r | |
1441 | FreePool (PreFullPath);\r | |
1442 | }\r | |
1443 | \r | |
1444 | if (FileBuffer == NULL) {\r | |
1445 | break;\r | |
1446 | }\r | |
1447 | \r | |
1448 | Status = gBS->LoadImage (\r | |
1449 | FALSE,\r | |
1450 | gImageHandle,\r | |
1451 | CurFullPath,\r | |
1452 | FileBuffer,\r | |
1453 | FileSize,\r | |
1454 | &ImageHandle\r | |
1455 | );\r | |
1456 | FreePool (FileBuffer);\r | |
1457 | \r | |
1458 | if (EFI_ERROR (Status)) {\r | |
1459 | //\r | |
1460 | // With EFI_SECURITY_VIOLATION retval, the Image was loaded and an ImageHandle was created\r | |
1461 | // with a valid EFI_LOADED_IMAGE_PROTOCOL, but the image can not be started right now.\r | |
1462 | // If the caller doesn't have the option to defer the execution of an image, we should\r | |
1463 | // unload image for the EFI_SECURITY_VIOLATION to avoid resource leak.\r | |
1464 | //\r | |
1465 | if (Status == EFI_SECURITY_VIOLATION) {\r | |
1466 | gBS->UnloadImage (ImageHandle);\r | |
1467 | }\r | |
1468 | } else {\r | |
1469 | Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **)&ImageInfo);\r | |
1470 | ASSERT_EFI_ERROR (Status);\r | |
1471 | \r | |
1472 | ImageInfo->LoadOptionsSize = LoadOption->OptionalDataSize;\r | |
1473 | ImageInfo->LoadOptions = LoadOption->OptionalData;\r | |
1474 | //\r | |
1475 | // Before calling the image, enable the Watchdog Timer for the 5-minute period\r | |
1476 | //\r | |
1477 | gBS->SetWatchdogTimer (5 * 60, 0, 0, NULL);\r | |
1478 | \r | |
1479 | LoadOption->Status = gBS->StartImage (ImageHandle, &LoadOption->ExitDataSize, &LoadOption->ExitData);\r | |
1480 | DEBUG ((\r | |
1481 | DEBUG_INFO | DEBUG_LOAD,\r | |
1482 | "%s%04x Return Status = %r\n",\r | |
1483 | mBmLoadOptionName[LoadOption->OptionType],\r | |
1484 | LoadOption->OptionNumber,\r | |
1485 | LoadOption->Status\r | |
1486 | ));\r | |
1487 | \r | |
1488 | //\r | |
1489 | // Clear the Watchdog Timer after the image returns\r | |
1490 | //\r | |
1491 | gBS->SetWatchdogTimer (0, 0, 0, NULL);\r | |
1492 | \r | |
1493 | if ((LoadOption->OptionType != LoadOptionTypePlatformRecovery) || (LoadOption->Status == EFI_SUCCESS)) {\r | |
1494 | break;\r | |
1495 | }\r | |
1496 | }\r | |
1497 | }\r | |
1498 | \r | |
1499 | if (CurFullPath != NULL) {\r | |
1500 | FreePool (CurFullPath);\r | |
1501 | }\r | |
1502 | \r | |
1503 | return Status;\r | |
1504 | }\r |