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067ed98a RN |
1 | /** @file\r |
2 | Library functions which relates with booting.\r | |
3 | \r | |
525839ed | 4 | Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>\r |
e58f1ae5 | 5 | (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>\r |
067ed98a RN |
6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "InternalBm.h"\r | |
17 | \r | |
339ae051 RN |
18 | EFI_RAM_DISK_PROTOCOL *mRamDisk = NULL;\r |
19 | \r | |
067ed98a RN |
20 | EFI_BOOT_MANAGER_REFRESH_LEGACY_BOOT_OPTION mBmRefreshLegacyBootOption = NULL;\r |
21 | EFI_BOOT_MANAGER_LEGACY_BOOT mBmLegacyBoot = NULL;\r | |
22 | \r | |
23 | ///\r | |
24 | /// This GUID is used for an EFI Variable that stores the front device pathes\r | |
25 | /// for a partial device path that starts with the HD node.\r | |
26 | ///\r | |
27 | EFI_GUID mBmHardDriveBootVariableGuid = { 0xfab7e9e1, 0x39dd, 0x4f2b, { 0x84, 0x08, 0xe2, 0x0e, 0x90, 0x6c, 0xb6, 0xde } };\r | |
28 | EFI_GUID mBmAutoCreateBootOptionGuid = { 0x8108ac4e, 0x9f11, 0x4d59, { 0x85, 0x0e, 0xe2, 0x1a, 0x52, 0x2c, 0x59, 0xb2 } };\r | |
29 | \r | |
30 | /**\r | |
31 | The function registers the legacy boot support capabilities.\r | |
32 | \r | |
33 | @param RefreshLegacyBootOption The function pointer to create all the legacy boot options.\r | |
34 | @param LegacyBoot The function pointer to boot the legacy boot option.\r | |
35 | **/\r | |
36 | VOID\r | |
37 | EFIAPI\r | |
38 | EfiBootManagerRegisterLegacyBootSupport (\r | |
39 | EFI_BOOT_MANAGER_REFRESH_LEGACY_BOOT_OPTION RefreshLegacyBootOption,\r | |
40 | EFI_BOOT_MANAGER_LEGACY_BOOT LegacyBoot\r | |
41 | )\r | |
42 | {\r | |
43 | mBmRefreshLegacyBootOption = RefreshLegacyBootOption;\r | |
44 | mBmLegacyBoot = LegacyBoot;\r | |
45 | }\r | |
46 | \r | |
404bd442 RN |
47 | /**\r |
48 | Return TRUE when the boot option is auto-created instead of manually added.\r | |
49 | \r | |
50 | @param BootOption Pointer to the boot option to check.\r | |
51 | \r | |
52 | @retval TRUE The boot option is auto-created.\r | |
53 | @retval FALSE The boot option is manually added.\r | |
54 | **/\r | |
55 | BOOLEAN\r | |
56 | BmIsAutoCreateBootOption (\r | |
57 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
58 | )\r | |
59 | {\r | |
60 | if ((BootOption->OptionalDataSize == sizeof (EFI_GUID)) &&\r | |
61 | CompareGuid ((EFI_GUID *) BootOption->OptionalData, &mBmAutoCreateBootOptionGuid)\r | |
62 | ) {\r | |
63 | return TRUE;\r | |
64 | } else {\r | |
65 | return FALSE;\r | |
66 | }\r | |
67 | }\r | |
68 | \r | |
067ed98a RN |
69 | /**\r |
70 | Find the boot option in the NV storage and return the option number.\r | |
71 | \r | |
72 | @param OptionToFind Boot option to be checked.\r | |
73 | \r | |
74 | @return The option number of the found boot option.\r | |
75 | \r | |
76 | **/\r | |
77 | UINTN\r | |
78 | BmFindBootOptionInVariable (\r | |
79 | IN EFI_BOOT_MANAGER_LOAD_OPTION *OptionToFind\r | |
80 | )\r | |
81 | {\r | |
82 | EFI_STATUS Status;\r | |
83 | EFI_BOOT_MANAGER_LOAD_OPTION BootOption;\r | |
84 | UINTN OptionNumber;\r | |
85 | CHAR16 OptionName[BM_OPTION_NAME_LEN];\r | |
86 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
87 | UINTN BootOptionCount;\r | |
88 | UINTN Index;\r | |
89 | \r | |
90 | OptionNumber = LoadOptionNumberUnassigned;\r | |
91 | \r | |
92 | //\r | |
93 | // Try to match the variable exactly if the option number is assigned\r | |
94 | //\r | |
95 | if (OptionToFind->OptionNumber != LoadOptionNumberUnassigned) {\r | |
96 | UnicodeSPrint (\r | |
97 | OptionName, sizeof (OptionName), L"%s%04x",\r | |
98 | mBmLoadOptionName[OptionToFind->OptionType], OptionToFind->OptionNumber\r | |
99 | );\r | |
100 | Status = EfiBootManagerVariableToLoadOption (OptionName, &BootOption);\r | |
101 | \r | |
102 | if (!EFI_ERROR (Status)) {\r | |
103 | ASSERT (OptionToFind->OptionNumber == BootOption.OptionNumber);\r | |
104 | if ((OptionToFind->Attributes == BootOption.Attributes) &&\r | |
105 | (StrCmp (OptionToFind->Description, BootOption.Description) == 0) &&\r | |
106 | (CompareMem (OptionToFind->FilePath, BootOption.FilePath, GetDevicePathSize (OptionToFind->FilePath)) == 0) &&\r | |
107 | (OptionToFind->OptionalDataSize == BootOption.OptionalDataSize) &&\r | |
108 | (CompareMem (OptionToFind->OptionalData, BootOption.OptionalData, OptionToFind->OptionalDataSize) == 0)\r | |
109 | ) {\r | |
110 | OptionNumber = OptionToFind->OptionNumber;\r | |
111 | }\r | |
112 | EfiBootManagerFreeLoadOption (&BootOption);\r | |
113 | }\r | |
114 | }\r | |
115 | \r | |
116 | //\r | |
117 | // The option number assigned is either incorrect or unassigned.\r | |
118 | //\r | |
119 | if (OptionNumber == LoadOptionNumberUnassigned) {\r | |
120 | BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
121 | \r | |
5d3a9896 | 122 | Index = EfiBootManagerFindLoadOption (OptionToFind, BootOptions, BootOptionCount);\r |
067ed98a RN |
123 | if (Index != -1) {\r |
124 | OptionNumber = BootOptions[Index].OptionNumber;\r | |
125 | }\r | |
126 | \r | |
127 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
128 | }\r | |
129 | \r | |
130 | return OptionNumber;\r | |
131 | }\r | |
132 | \r | |
133 | /**\r | |
134 | Get the file buffer using a Memory Mapped Device Path.\r | |
135 | \r | |
136 | FV address may change across reboot. This routine promises the FV file device path is right.\r | |
137 | \r | |
525839ed | 138 | @param FilePath The Memory Mapped Device Path to get the file buffer.\r |
067ed98a RN |
139 | @param FullPath Receive the updated FV Device Path pointint to the file.\r |
140 | @param FileSize Receive the file buffer size.\r | |
141 | \r | |
142 | @return The file buffer.\r | |
143 | **/\r | |
144 | VOID *\r | |
525839ed RN |
145 | BmGetFileBufferByFvFilePath (\r |
146 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
067ed98a RN |
147 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r |
148 | OUT UINTN *FileSize\r | |
149 | )\r | |
150 | {\r | |
151 | EFI_STATUS Status;\r | |
152 | UINTN Index;\r | |
153 | EFI_DEVICE_PATH_PROTOCOL *FvFileNode;\r | |
154 | EFI_HANDLE FvHandle;\r | |
155 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
156 | UINT32 AuthenticationStatus;\r | |
157 | UINTN FvHandleCount;\r | |
158 | EFI_HANDLE *FvHandles;\r | |
159 | EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;\r | |
160 | VOID *FileBuffer;\r | |
525839ed RN |
161 | \r |
162 | //\r | |
163 | // Get the file buffer by using the exactly FilePath.\r | |
164 | //\r | |
165 | FvFileNode = FilePath;\r | |
067ed98a RN |
166 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &FvFileNode, &FvHandle);\r |
167 | if (!EFI_ERROR (Status)) {\r | |
525839ed | 168 | FileBuffer = GetFileBufferByFilePath (TRUE, FilePath, FileSize, &AuthenticationStatus);\r |
067ed98a | 169 | if (FileBuffer != NULL) {\r |
525839ed | 170 | *FullPath = DuplicateDevicePath (FilePath);\r |
067ed98a RN |
171 | }\r |
172 | return FileBuffer;\r | |
173 | }\r | |
174 | \r | |
525839ed RN |
175 | //\r |
176 | // Only wide match other FVs if it's a memory mapped FV file path.\r | |
177 | //\r | |
178 | if ((DevicePathType (FilePath) != HARDWARE_DEVICE_PATH) || (DevicePathSubType (FilePath) != HW_MEMMAP_DP)) {\r | |
179 | return NULL;\r | |
180 | }\r | |
181 | \r | |
182 | FvFileNode = NextDevicePathNode (FilePath);\r | |
067ed98a RN |
183 | \r |
184 | //\r | |
185 | // Firstly find the FV file in current FV\r | |
186 | //\r | |
187 | gBS->HandleProtocol (\r | |
188 | gImageHandle,\r | |
189 | &gEfiLoadedImageProtocolGuid,\r | |
190 | (VOID **) &LoadedImage\r | |
191 | );\r | |
192 | NewDevicePath = AppendDevicePathNode (DevicePathFromHandle (LoadedImage->DeviceHandle), FvFileNode);\r | |
525839ed | 193 | FileBuffer = BmGetFileBufferByFvFilePath (NewDevicePath, FullPath, FileSize);\r |
067ed98a RN |
194 | FreePool (NewDevicePath);\r |
195 | \r | |
196 | if (FileBuffer != NULL) {\r | |
197 | return FileBuffer;\r | |
198 | }\r | |
199 | \r | |
200 | //\r | |
201 | // Secondly find the FV file in all other FVs\r | |
202 | //\r | |
203 | gBS->LocateHandleBuffer (\r | |
204 | ByProtocol,\r | |
205 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
206 | NULL,\r | |
207 | &FvHandleCount,\r | |
208 | &FvHandles\r | |
209 | );\r | |
210 | for (Index = 0; (Index < FvHandleCount) && (FileBuffer == NULL); Index++) {\r | |
211 | if (FvHandles[Index] == LoadedImage->DeviceHandle) {\r | |
212 | //\r | |
213 | // Skip current FV\r | |
214 | //\r | |
215 | continue;\r | |
216 | }\r | |
217 | NewDevicePath = AppendDevicePathNode (DevicePathFromHandle (FvHandles[Index]), FvFileNode);\r | |
525839ed | 218 | FileBuffer = BmGetFileBufferByFvFilePath (NewDevicePath, FullPath, FileSize);\r |
067ed98a RN |
219 | FreePool (NewDevicePath);\r |
220 | }\r | |
221 | \r | |
222 | if (FvHandles != NULL) {\r | |
223 | FreePool (FvHandles);\r | |
224 | }\r | |
225 | return FileBuffer;\r | |
226 | }\r | |
227 | \r | |
228 | /**\r | |
525839ed | 229 | Check if it's a Device Path pointing to FV file.\r |
067ed98a RN |
230 | \r |
231 | The function doesn't garentee the device path points to existing FV file.\r | |
232 | \r | |
233 | @param DevicePath Input device path.\r | |
234 | \r | |
525839ed RN |
235 | @retval TRUE The device path is a FV File Device Path.\r |
236 | @retval FALSE The device path is NOT a FV File Device Path.\r | |
067ed98a RN |
237 | **/\r |
238 | BOOLEAN\r | |
525839ed | 239 | BmIsFvFilePath (\r |
067ed98a RN |
240 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r |
241 | )\r | |
242 | {\r | |
525839ed RN |
243 | EFI_STATUS Status;\r |
244 | EFI_HANDLE Handle;\r | |
245 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
246 | \r | |
247 | Node = DevicePath;\r | |
248 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &Node, &Handle);\r | |
249 | if (!EFI_ERROR (Status)) {\r | |
250 | return TRUE;\r | |
251 | }\r | |
067ed98a RN |
252 | \r |
253 | if ((DevicePathType (DevicePath) == HARDWARE_DEVICE_PATH) && (DevicePathSubType (DevicePath) == HW_MEMMAP_DP)) {\r | |
525839ed RN |
254 | DevicePath = NextDevicePathNode (DevicePath);\r |
255 | if ((DevicePathType (DevicePath) == MEDIA_DEVICE_PATH) && (DevicePathSubType (DevicePath) == MEDIA_PIWG_FW_FILE_DP)) {\r | |
256 | return IsDevicePathEnd (NextDevicePathNode (DevicePath));\r | |
067ed98a RN |
257 | }\r |
258 | }\r | |
067ed98a RN |
259 | return FALSE;\r |
260 | }\r | |
261 | \r | |
262 | /**\r | |
263 | Check whether a USB device match the specified USB Class device path. This\r | |
264 | function follows "Load Option Processing" behavior in UEFI specification.\r | |
265 | \r | |
266 | @param UsbIo USB I/O protocol associated with the USB device.\r | |
267 | @param UsbClass The USB Class device path to match.\r | |
268 | \r | |
269 | @retval TRUE The USB device match the USB Class device path.\r | |
270 | @retval FALSE The USB device does not match the USB Class device path.\r | |
271 | \r | |
272 | **/\r | |
273 | BOOLEAN\r | |
274 | BmMatchUsbClass (\r | |
275 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
276 | IN USB_CLASS_DEVICE_PATH *UsbClass\r | |
277 | )\r | |
278 | {\r | |
279 | EFI_STATUS Status;\r | |
280 | EFI_USB_DEVICE_DESCRIPTOR DevDesc;\r | |
281 | EFI_USB_INTERFACE_DESCRIPTOR IfDesc;\r | |
282 | UINT8 DeviceClass;\r | |
283 | UINT8 DeviceSubClass;\r | |
284 | UINT8 DeviceProtocol;\r | |
285 | \r | |
286 | if ((DevicePathType (UsbClass) != MESSAGING_DEVICE_PATH) ||\r | |
287 | (DevicePathSubType (UsbClass) != MSG_USB_CLASS_DP)){\r | |
288 | return FALSE;\r | |
289 | }\r | |
290 | \r | |
291 | //\r | |
292 | // Check Vendor Id and Product Id.\r | |
293 | //\r | |
294 | Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);\r | |
295 | if (EFI_ERROR (Status)) {\r | |
296 | return FALSE;\r | |
297 | }\r | |
298 | \r | |
299 | if ((UsbClass->VendorId != 0xffff) &&\r | |
300 | (UsbClass->VendorId != DevDesc.IdVendor)) {\r | |
301 | return FALSE;\r | |
302 | }\r | |
303 | \r | |
304 | if ((UsbClass->ProductId != 0xffff) &&\r | |
305 | (UsbClass->ProductId != DevDesc.IdProduct)) {\r | |
306 | return FALSE;\r | |
307 | }\r | |
308 | \r | |
309 | DeviceClass = DevDesc.DeviceClass;\r | |
310 | DeviceSubClass = DevDesc.DeviceSubClass;\r | |
311 | DeviceProtocol = DevDesc.DeviceProtocol;\r | |
312 | if (DeviceClass == 0) {\r | |
313 | //\r | |
314 | // If Class in Device Descriptor is set to 0, use the Class, SubClass and\r | |
315 | // Protocol in Interface Descriptor instead.\r | |
316 | //\r | |
317 | Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);\r | |
318 | if (EFI_ERROR (Status)) {\r | |
319 | return FALSE;\r | |
320 | }\r | |
321 | \r | |
322 | DeviceClass = IfDesc.InterfaceClass;\r | |
323 | DeviceSubClass = IfDesc.InterfaceSubClass;\r | |
324 | DeviceProtocol = IfDesc.InterfaceProtocol;\r | |
325 | }\r | |
326 | \r | |
327 | //\r | |
328 | // Check Class, SubClass and Protocol.\r | |
329 | //\r | |
330 | if ((UsbClass->DeviceClass != 0xff) &&\r | |
331 | (UsbClass->DeviceClass != DeviceClass)) {\r | |
332 | return FALSE;\r | |
333 | }\r | |
334 | \r | |
335 | if ((UsbClass->DeviceSubClass != 0xff) &&\r | |
336 | (UsbClass->DeviceSubClass != DeviceSubClass)) {\r | |
337 | return FALSE;\r | |
338 | }\r | |
339 | \r | |
340 | if ((UsbClass->DeviceProtocol != 0xff) &&\r | |
341 | (UsbClass->DeviceProtocol != DeviceProtocol)) {\r | |
342 | return FALSE;\r | |
343 | }\r | |
344 | \r | |
345 | return TRUE;\r | |
346 | }\r | |
347 | \r | |
067ed98a RN |
348 | /**\r |
349 | Check whether a USB device match the specified USB WWID device path. This\r | |
350 | function follows "Load Option Processing" behavior in UEFI specification.\r | |
351 | \r | |
352 | @param UsbIo USB I/O protocol associated with the USB device.\r | |
353 | @param UsbWwid The USB WWID device path to match.\r | |
354 | \r | |
355 | @retval TRUE The USB device match the USB WWID device path.\r | |
356 | @retval FALSE The USB device does not match the USB WWID device path.\r | |
357 | \r | |
358 | **/\r | |
359 | BOOLEAN\r | |
360 | BmMatchUsbWwid (\r | |
361 | IN EFI_USB_IO_PROTOCOL *UsbIo,\r | |
362 | IN USB_WWID_DEVICE_PATH *UsbWwid\r | |
363 | )\r | |
364 | {\r | |
365 | EFI_STATUS Status;\r | |
366 | EFI_USB_DEVICE_DESCRIPTOR DevDesc;\r | |
367 | EFI_USB_INTERFACE_DESCRIPTOR IfDesc;\r | |
368 | UINT16 *LangIdTable;\r | |
369 | UINT16 TableSize;\r | |
370 | UINT16 Index;\r | |
371 | CHAR16 *CompareStr;\r | |
372 | UINTN CompareLen;\r | |
373 | CHAR16 *SerialNumberStr;\r | |
374 | UINTN Length;\r | |
375 | \r | |
376 | if ((DevicePathType (UsbWwid) != MESSAGING_DEVICE_PATH) ||\r | |
377 | (DevicePathSubType (UsbWwid) != MSG_USB_WWID_DP)) {\r | |
378 | return FALSE;\r | |
379 | }\r | |
380 | \r | |
381 | //\r | |
382 | // Check Vendor Id and Product Id.\r | |
383 | //\r | |
384 | Status = UsbIo->UsbGetDeviceDescriptor (UsbIo, &DevDesc);\r | |
385 | if (EFI_ERROR (Status)) {\r | |
386 | return FALSE;\r | |
387 | }\r | |
388 | if ((DevDesc.IdVendor != UsbWwid->VendorId) ||\r | |
389 | (DevDesc.IdProduct != UsbWwid->ProductId)) {\r | |
390 | return FALSE;\r | |
391 | }\r | |
392 | \r | |
393 | //\r | |
394 | // Check Interface Number.\r | |
395 | //\r | |
396 | Status = UsbIo->UsbGetInterfaceDescriptor (UsbIo, &IfDesc);\r | |
397 | if (EFI_ERROR (Status)) {\r | |
398 | return FALSE;\r | |
399 | }\r | |
400 | if (IfDesc.InterfaceNumber != UsbWwid->InterfaceNumber) {\r | |
401 | return FALSE;\r | |
402 | }\r | |
403 | \r | |
404 | //\r | |
405 | // Check Serial Number.\r | |
406 | //\r | |
407 | if (DevDesc.StrSerialNumber == 0) {\r | |
408 | return FALSE;\r | |
409 | }\r | |
410 | \r | |
411 | //\r | |
412 | // Get all supported languages.\r | |
413 | //\r | |
414 | TableSize = 0;\r | |
415 | LangIdTable = NULL;\r | |
416 | Status = UsbIo->UsbGetSupportedLanguages (UsbIo, &LangIdTable, &TableSize);\r | |
417 | if (EFI_ERROR (Status) || (TableSize == 0) || (LangIdTable == NULL)) {\r | |
418 | return FALSE;\r | |
419 | }\r | |
420 | \r | |
421 | //\r | |
422 | // Serial number in USB WWID device path is the last 64-or-less UTF-16 characters.\r | |
423 | //\r | |
424 | CompareStr = (CHAR16 *) (UINTN) (UsbWwid + 1);\r | |
425 | CompareLen = (DevicePathNodeLength (UsbWwid) - sizeof (USB_WWID_DEVICE_PATH)) / sizeof (CHAR16);\r | |
426 | if (CompareStr[CompareLen - 1] == L'\0') {\r | |
427 | CompareLen--;\r | |
428 | }\r | |
429 | \r | |
430 | //\r | |
431 | // Compare serial number in each supported language.\r | |
432 | //\r | |
433 | for (Index = 0; Index < TableSize / sizeof (UINT16); Index++) {\r | |
434 | SerialNumberStr = NULL;\r | |
435 | Status = UsbIo->UsbGetStringDescriptor (\r | |
436 | UsbIo,\r | |
437 | LangIdTable[Index],\r | |
438 | DevDesc.StrSerialNumber,\r | |
439 | &SerialNumberStr\r | |
440 | );\r | |
441 | if (EFI_ERROR (Status) || (SerialNumberStr == NULL)) {\r | |
442 | continue;\r | |
443 | }\r | |
444 | \r | |
445 | Length = StrLen (SerialNumberStr);\r | |
446 | if ((Length >= CompareLen) &&\r | |
447 | (CompareMem (SerialNumberStr + Length - CompareLen, CompareStr, CompareLen * sizeof (CHAR16)) == 0)) {\r | |
448 | FreePool (SerialNumberStr);\r | |
449 | return TRUE;\r | |
450 | }\r | |
451 | \r | |
452 | FreePool (SerialNumberStr);\r | |
453 | }\r | |
454 | \r | |
455 | return FALSE;\r | |
456 | }\r | |
457 | \r | |
458 | /**\r | |
459 | Find a USB device which match the specified short-form device path start with \r | |
460 | USB Class or USB WWID device path. If ParentDevicePath is NULL, this function\r | |
461 | will search in all USB devices of the platform. If ParentDevicePath is not NULL,\r | |
462 | this function will only search in its child devices.\r | |
463 | \r | |
464 | @param DevicePath The device path that contains USB Class or USB WWID device path.\r | |
465 | @param ParentDevicePathSize The length of the device path before the USB Class or \r | |
466 | USB WWID device path.\r | |
467 | @param UsbIoHandleCount A pointer to the count of the returned USB IO handles.\r | |
468 | \r | |
469 | @retval NULL The matched USB IO handles cannot be found.\r | |
470 | @retval other The matched USB IO handles.\r | |
471 | \r | |
472 | **/\r | |
473 | EFI_HANDLE *\r | |
474 | BmFindUsbDevice (\r | |
475 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
476 | IN UINTN ParentDevicePathSize,\r | |
477 | OUT UINTN *UsbIoHandleCount\r | |
478 | )\r | |
479 | {\r | |
480 | EFI_STATUS Status;\r | |
481 | EFI_HANDLE *UsbIoHandles;\r | |
482 | EFI_DEVICE_PATH_PROTOCOL *UsbIoDevicePath;\r | |
483 | EFI_USB_IO_PROTOCOL *UsbIo;\r | |
484 | UINTN Index;\r | |
067ed98a RN |
485 | BOOLEAN Matched;\r |
486 | \r | |
487 | ASSERT (UsbIoHandleCount != NULL); \r | |
488 | \r | |
489 | //\r | |
490 | // Get all UsbIo Handles.\r | |
491 | //\r | |
492 | Status = gBS->LocateHandleBuffer (\r | |
493 | ByProtocol,\r | |
494 | &gEfiUsbIoProtocolGuid,\r | |
495 | NULL,\r | |
496 | UsbIoHandleCount,\r | |
497 | &UsbIoHandles\r | |
498 | );\r | |
499 | if (EFI_ERROR (Status)) {\r | |
500 | *UsbIoHandleCount = 0;\r | |
501 | UsbIoHandles = NULL;\r | |
502 | }\r | |
503 | \r | |
504 | for (Index = 0; Index < *UsbIoHandleCount; ) {\r | |
505 | //\r | |
506 | // Get the Usb IO interface.\r | |
507 | //\r | |
508 | Status = gBS->HandleProtocol(\r | |
509 | UsbIoHandles[Index],\r | |
510 | &gEfiUsbIoProtocolGuid,\r | |
511 | (VOID **) &UsbIo\r | |
512 | );\r | |
513 | UsbIoDevicePath = DevicePathFromHandle (UsbIoHandles[Index]);\r | |
514 | Matched = FALSE;\r | |
515 | if (!EFI_ERROR (Status) && (UsbIoDevicePath != NULL)) {\r | |
067ed98a RN |
516 | \r |
517 | //\r | |
518 | // Compare starting part of UsbIoHandle's device path with ParentDevicePath.\r | |
519 | //\r | |
520 | if (CompareMem (UsbIoDevicePath, DevicePath, ParentDevicePathSize) == 0) {\r | |
521 | if (BmMatchUsbClass (UsbIo, (USB_CLASS_DEVICE_PATH *) ((UINTN) DevicePath + ParentDevicePathSize)) ||\r | |
522 | BmMatchUsbWwid (UsbIo, (USB_WWID_DEVICE_PATH *) ((UINTN) DevicePath + ParentDevicePathSize))) {\r | |
523 | Matched = TRUE;\r | |
524 | }\r | |
525 | }\r | |
526 | }\r | |
527 | \r | |
528 | if (!Matched) {\r | |
529 | (*UsbIoHandleCount) --;\r | |
530 | CopyMem (&UsbIoHandles[Index], &UsbIoHandles[Index + 1], (*UsbIoHandleCount - Index) * sizeof (EFI_HANDLE));\r | |
531 | } else {\r | |
532 | Index++;\r | |
533 | }\r | |
534 | }\r | |
535 | \r | |
536 | return UsbIoHandles;\r | |
537 | }\r | |
538 | \r | |
539 | /**\r | |
540 | Expand USB Class or USB WWID device path node to be full device path of a USB\r | |
541 | device in platform.\r | |
542 | \r | |
543 | This function support following 4 cases:\r | |
544 | 1) Boot Option device path starts with a USB Class or USB WWID device path,\r | |
545 | and there is no Media FilePath device path in the end.\r | |
546 | In this case, it will follow Removable Media Boot Behavior.\r | |
547 | 2) Boot Option device path starts with a USB Class or USB WWID device path,\r | |
548 | and ended with Media FilePath device path.\r | |
549 | 3) Boot Option device path starts with a full device path to a USB Host Controller,\r | |
550 | contains a USB Class or USB WWID device path node, while not ended with Media\r | |
551 | FilePath device path. In this case, it will follow Removable Media Boot Behavior.\r | |
552 | 4) Boot Option device path starts with a full device path to a USB Host Controller,\r | |
553 | contains a USB Class or USB WWID device path node, and ended with Media\r | |
554 | FilePath device path.\r | |
555 | \r | |
556 | @param FilePath The device path pointing to a load option.\r | |
557 | It could be a short-form device path.\r | |
558 | @param FullPath Return the full device path of the load option after\r | |
559 | short-form device path expanding.\r | |
560 | Caller is responsible to free it.\r | |
561 | @param FileSize Return the load option size.\r | |
562 | @param ShortformNode Pointer to the USB short-form device path node in the FilePath buffer.\r | |
563 | \r | |
564 | @return The load option buffer. Caller is responsible to free the memory.\r | |
565 | **/\r | |
566 | VOID *\r | |
567 | BmExpandUsbDevicePath (\r | |
568 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
569 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
570 | OUT UINTN *FileSize,\r | |
571 | IN EFI_DEVICE_PATH_PROTOCOL *ShortformNode\r | |
572 | )\r | |
573 | {\r | |
574 | UINTN ParentDevicePathSize;\r | |
575 | EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath;\r | |
576 | EFI_DEVICE_PATH_PROTOCOL *FullDevicePath;\r | |
577 | EFI_HANDLE *Handles;\r | |
578 | UINTN HandleCount;\r | |
579 | UINTN Index;\r | |
580 | VOID *FileBuffer;\r | |
581 | \r | |
582 | ParentDevicePathSize = (UINTN) ShortformNode - (UINTN) FilePath;\r | |
583 | RemainingDevicePath = NextDevicePathNode (ShortformNode);\r | |
584 | FileBuffer = NULL;\r | |
585 | Handles = BmFindUsbDevice (FilePath, ParentDevicePathSize, &HandleCount);\r | |
586 | \r | |
587 | for (Index = 0; (Index < HandleCount) && (FileBuffer == NULL); Index++) {\r | |
588 | FullDevicePath = AppendDevicePath (DevicePathFromHandle (Handles[Index]), RemainingDevicePath);\r | |
4ed2440d | 589 | FileBuffer = EfiBootManagerGetLoadOptionBuffer (FullDevicePath, FullPath, FileSize);\r |
067ed98a RN |
590 | FreePool (FullDevicePath);\r |
591 | }\r | |
592 | \r | |
593 | if (Handles != NULL) {\r | |
594 | FreePool (Handles);\r | |
595 | }\r | |
596 | \r | |
597 | return FileBuffer;\r | |
598 | }\r | |
599 | \r | |
ccb66799 RN |
600 | /**\r |
601 | Expand File-path device path node to be full device path in platform.\r | |
602 | \r | |
603 | @param FilePath The device path pointing to a load option.\r | |
604 | It could be a short-form device path.\r | |
605 | @param FullPath Return the full device path of the load option after\r | |
606 | short-form device path expanding.\r | |
607 | Caller is responsible to free it.\r | |
608 | @param FileSize Return the load option size.\r | |
609 | \r | |
610 | @return The load option buffer. Caller is responsible to free the memory.\r | |
611 | **/\r | |
612 | VOID *\r | |
613 | BmExpandFileDevicePath (\r | |
614 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
615 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
616 | OUT UINTN *FileSize\r | |
617 | )\r | |
618 | {\r | |
619 | EFI_STATUS Status;\r | |
620 | UINTN Index;\r | |
621 | UINTN HandleCount;\r | |
622 | EFI_HANDLE *Handles;\r | |
623 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
624 | UINTN MediaType;\r | |
625 | EFI_DEVICE_PATH_PROTOCOL *FullDevicePath;\r | |
626 | VOID *FileBuffer;\r | |
627 | UINT32 AuthenticationStatus;\r | |
628 | \r | |
629 | EfiBootManagerConnectAll ();\r | |
630 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiSimpleFileSystemProtocolGuid, NULL, &HandleCount, &Handles);\r | |
631 | if (EFI_ERROR (Status)) {\r | |
632 | HandleCount = 0;\r | |
633 | Handles = NULL;\r | |
634 | }\r | |
635 | \r | |
636 | //\r | |
637 | // Enumerate all removable media devices followed by all fixed media devices,\r | |
638 | // followed by media devices which don't layer on block io.\r | |
639 | //\r | |
640 | for (MediaType = 0; MediaType < 3; MediaType++) {\r | |
641 | for (Index = 0; Index < HandleCount; Index++) {\r | |
642 | Status = gBS->HandleProtocol (Handles[Index], &gEfiBlockIoProtocolGuid, (VOID *) &BlockIo);\r | |
643 | if (EFI_ERROR (Status)) {\r | |
644 | BlockIo = NULL;\r | |
645 | }\r | |
646 | if ((MediaType == 0 && BlockIo != NULL && BlockIo->Media->RemovableMedia) ||\r | |
647 | (MediaType == 1 && BlockIo != NULL && !BlockIo->Media->RemovableMedia) ||\r | |
648 | (MediaType == 2 && BlockIo == NULL)\r | |
649 | ) {\r | |
650 | FullDevicePath = AppendDevicePath (DevicePathFromHandle (Handles[Index]), FilePath);\r | |
651 | FileBuffer = GetFileBufferByFilePath (TRUE, FullDevicePath, FileSize, &AuthenticationStatus);\r | |
652 | if (FileBuffer != NULL) {\r | |
653 | *FullPath = FullDevicePath;\r | |
654 | FreePool (Handles);\r | |
655 | return FileBuffer;\r | |
656 | }\r | |
657 | FreePool (FullDevicePath);\r | |
658 | }\r | |
659 | }\r | |
660 | }\r | |
661 | \r | |
662 | if (Handles != NULL) {\r | |
663 | FreePool (Handles);\r | |
664 | }\r | |
665 | \r | |
666 | *FullPath = NULL;\r | |
667 | return NULL;\r | |
668 | }\r | |
669 | \r | |
4a285ec1 RN |
670 | /**\r |
671 | Expand URI device path node to be full device path in platform.\r | |
672 | \r | |
673 | @param FilePath The device path pointing to a load option.\r | |
674 | It could be a short-form device path.\r | |
675 | @param FullPath Return the full device path of the load option after\r | |
676 | short-form device path expanding.\r | |
677 | Caller is responsible to free it.\r | |
678 | @param FileSize Return the load option size.\r | |
679 | \r | |
680 | @return The load option buffer. Caller is responsible to free the memory.\r | |
681 | **/\r | |
682 | VOID *\r | |
683 | BmExpandUriDevicePath (\r | |
684 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
685 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
686 | OUT UINTN *FileSize\r | |
687 | )\r | |
688 | {\r | |
689 | EFI_STATUS Status;\r | |
690 | UINTN Index;\r | |
691 | UINTN HandleCount;\r | |
692 | EFI_HANDLE *Handles;\r | |
4a285ec1 RN |
693 | VOID *FileBuffer;\r |
694 | \r | |
695 | EfiBootManagerConnectAll ();\r | |
696 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiLoadFileProtocolGuid, NULL, &HandleCount, &Handles);\r | |
697 | if (EFI_ERROR (Status)) {\r | |
698 | HandleCount = 0;\r | |
699 | Handles = NULL;\r | |
700 | }\r | |
701 | \r | |
54241797 | 702 | FileBuffer = NULL;\r |
4a285ec1 | 703 | for (Index = 0; Index < HandleCount; Index++) {\r |
026ede49 | 704 | FileBuffer = BmGetFileBufferFromLoadFile (Handles[Index], FilePath, FullPath, FileSize);\r |
4a285ec1 | 705 | if (FileBuffer != NULL) {\r |
026ede49 | 706 | break;\r |
4a285ec1 RN |
707 | }\r |
708 | }\r | |
709 | \r | |
710 | if (Handles != NULL) {\r | |
711 | FreePool (Handles);\r | |
712 | }\r | |
713 | \r | |
714 | return FileBuffer;\r | |
715 | }\r | |
716 | \r | |
067ed98a RN |
717 | /**\r |
718 | Save the partition DevicePath to the CachedDevicePath as the first instance.\r | |
719 | \r | |
720 | @param CachedDevicePath The device path cache.\r | |
721 | @param DevicePath The partition device path to be cached.\r | |
722 | **/\r | |
723 | VOID\r | |
724 | BmCachePartitionDevicePath (\r | |
725 | IN OUT EFI_DEVICE_PATH_PROTOCOL **CachedDevicePath,\r | |
726 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
727 | )\r | |
728 | {\r | |
729 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
730 | UINTN Count;\r | |
731 | \r | |
732 | if (BmMatchDevicePaths (*CachedDevicePath, DevicePath)) {\r | |
733 | TempDevicePath = *CachedDevicePath;\r | |
734 | *CachedDevicePath = BmDelPartMatchInstance (*CachedDevicePath, DevicePath);\r | |
735 | FreePool (TempDevicePath);\r | |
736 | }\r | |
737 | \r | |
738 | if (*CachedDevicePath == NULL) {\r | |
739 | *CachedDevicePath = DuplicateDevicePath (DevicePath);\r | |
740 | return;\r | |
741 | }\r | |
742 | \r | |
743 | TempDevicePath = *CachedDevicePath;\r | |
744 | *CachedDevicePath = AppendDevicePathInstance (DevicePath, *CachedDevicePath);\r | |
745 | if (TempDevicePath != NULL) {\r | |
746 | FreePool (TempDevicePath);\r | |
747 | }\r | |
748 | \r | |
749 | //\r | |
750 | // Here limit the device path instance number to 12, which is max number for a system support 3 IDE controller\r | |
751 | // If the user try to boot many OS in different HDs or partitions, in theory, the 'HDDP' variable maybe become larger and larger.\r | |
752 | //\r | |
753 | Count = 0;\r | |
754 | TempDevicePath = *CachedDevicePath;\r | |
755 | while (!IsDevicePathEnd (TempDevicePath)) {\r | |
756 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
757 | //\r | |
758 | // Parse one instance\r | |
759 | //\r | |
760 | while (!IsDevicePathEndType (TempDevicePath)) {\r | |
761 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
762 | }\r | |
763 | Count++;\r | |
764 | //\r | |
765 | // If the CachedDevicePath variable contain too much instance, only remain 12 instances.\r | |
766 | //\r | |
767 | if (Count == 12) {\r | |
768 | SetDevicePathEndNode (TempDevicePath);\r | |
769 | break;\r | |
770 | }\r | |
771 | }\r | |
772 | }\r | |
773 | \r | |
774 | /**\r | |
775 | Expand a device path that starts with a hard drive media device path node to be a\r | |
776 | full device path that includes the full hardware path to the device. We need\r | |
777 | to do this so it can be booted. As an optimization the front match (the part point\r | |
778 | to the partition node. E.g. ACPI() /PCI()/ATA()/Partition() ) is saved in a variable\r | |
779 | so a connect all is not required on every boot. All successful history device path\r | |
780 | which point to partition node (the front part) will be saved.\r | |
781 | \r | |
782 | @param FilePath The device path pointing to a load option.\r | |
783 | It could be a short-form device path.\r | |
784 | @param FullPath Return the full device path of the load option after\r | |
785 | short-form device path expanding.\r | |
786 | Caller is responsible to free it.\r | |
787 | @param FileSize Return the load option size.\r | |
788 | \r | |
789 | @return The load option buffer. Caller is responsible to free the memory.\r | |
790 | **/\r | |
791 | VOID *\r | |
792 | BmExpandPartitionDevicePath (\r | |
793 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r | |
794 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
795 | OUT UINTN *FileSize\r | |
796 | )\r | |
797 | {\r | |
798 | EFI_STATUS Status;\r | |
799 | UINTN BlockIoHandleCount;\r | |
800 | EFI_HANDLE *BlockIoBuffer;\r | |
801 | VOID *FileBuffer;\r | |
802 | EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath;\r | |
803 | UINTN Index;\r | |
804 | EFI_DEVICE_PATH_PROTOCOL *CachedDevicePath;\r | |
805 | EFI_DEVICE_PATH_PROTOCOL *TempNewDevicePath;\r | |
806 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
807 | UINTN CachedDevicePathSize;\r | |
808 | BOOLEAN NeedAdjust;\r | |
809 | EFI_DEVICE_PATH_PROTOCOL *Instance;\r | |
810 | UINTN Size;\r | |
811 | \r | |
812 | FileBuffer = NULL;\r | |
813 | //\r | |
814 | // Check if there is prestore 'HDDP' variable.\r | |
815 | // If exist, search the front path which point to partition node in the variable instants.\r | |
816 | // If fail to find or 'HDDP' not exist, reconnect all and search in all system\r | |
817 | //\r | |
818 | GetVariable2 (L"HDDP", &mBmHardDriveBootVariableGuid, (VOID **) &CachedDevicePath, &CachedDevicePathSize);\r | |
819 | \r | |
820 | //\r | |
821 | // Delete the invalid 'HDDP' variable.\r | |
822 | //\r | |
823 | if ((CachedDevicePath != NULL) && !IsDevicePathValid (CachedDevicePath, CachedDevicePathSize)) {\r | |
824 | FreePool (CachedDevicePath);\r | |
825 | CachedDevicePath = NULL;\r | |
826 | Status = gRT->SetVariable (\r | |
827 | L"HDDP",\r | |
828 | &mBmHardDriveBootVariableGuid,\r | |
829 | 0,\r | |
830 | 0,\r | |
831 | NULL\r | |
832 | );\r | |
833 | ASSERT_EFI_ERROR (Status);\r | |
834 | }\r | |
835 | \r | |
836 | if (CachedDevicePath != NULL) {\r | |
837 | TempNewDevicePath = CachedDevicePath;\r | |
838 | NeedAdjust = FALSE;\r | |
839 | do {\r | |
840 | //\r | |
841 | // Check every instance of the variable\r | |
842 | // First, check whether the instance contain the partition node, which is needed for distinguishing multi\r | |
843 | // partial partition boot option. Second, check whether the instance could be connected.\r | |
844 | //\r | |
845 | Instance = GetNextDevicePathInstance (&TempNewDevicePath, &Size);\r | |
846 | if (BmMatchPartitionDevicePathNode (Instance, (HARDDRIVE_DEVICE_PATH *) FilePath)) {\r | |
847 | //\r | |
848 | // Connect the device path instance, the device path point to hard drive media device path node\r | |
849 | // e.g. ACPI() /PCI()/ATA()/Partition()\r | |
850 | //\r | |
851 | Status = EfiBootManagerConnectDevicePath (Instance, NULL);\r | |
852 | if (!EFI_ERROR (Status)) {\r | |
853 | TempDevicePath = AppendDevicePath (Instance, NextDevicePathNode (FilePath));\r | |
4ed2440d | 854 | FileBuffer = EfiBootManagerGetLoadOptionBuffer (TempDevicePath, FullPath, FileSize);\r |
067ed98a RN |
855 | FreePool (TempDevicePath);\r |
856 | \r | |
857 | if (FileBuffer != NULL) {\r | |
858 | //\r | |
859 | // Adjust the 'HDDP' instances sequence if the matched one is not first one.\r | |
860 | //\r | |
861 | if (NeedAdjust) {\r | |
862 | BmCachePartitionDevicePath (&CachedDevicePath, Instance);\r | |
863 | //\r | |
864 | // Save the matching Device Path so we don't need to do a connect all next time\r | |
865 | // Failing to save only impacts performance next time expanding the short-form device path\r | |
866 | //\r | |
867 | Status = gRT->SetVariable (\r | |
868 | L"HDDP",\r | |
869 | &mBmHardDriveBootVariableGuid,\r | |
870 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
871 | GetDevicePathSize (CachedDevicePath),\r | |
872 | CachedDevicePath\r | |
873 | );\r | |
874 | }\r | |
875 | \r | |
876 | FreePool (Instance);\r | |
877 | FreePool (CachedDevicePath);\r | |
878 | return FileBuffer;\r | |
879 | }\r | |
880 | }\r | |
881 | }\r | |
882 | //\r | |
883 | // Come here means the first instance is not matched\r | |
884 | //\r | |
885 | NeedAdjust = TRUE;\r | |
886 | FreePool(Instance);\r | |
887 | } while (TempNewDevicePath != NULL);\r | |
888 | }\r | |
889 | \r | |
890 | //\r | |
891 | // If we get here we fail to find or 'HDDP' not exist, and now we need\r | |
892 | // to search all devices in the system for a matched partition\r | |
893 | //\r | |
894 | EfiBootManagerConnectAll ();\r | |
895 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiBlockIoProtocolGuid, NULL, &BlockIoHandleCount, &BlockIoBuffer);\r | |
896 | if (EFI_ERROR (Status)) {\r | |
897 | BlockIoHandleCount = 0;\r | |
898 | BlockIoBuffer = NULL;\r | |
899 | }\r | |
900 | //\r | |
901 | // Loop through all the device handles that support the BLOCK_IO Protocol\r | |
902 | //\r | |
903 | for (Index = 0; Index < BlockIoHandleCount; Index++) {\r | |
904 | BlockIoDevicePath = DevicePathFromHandle (BlockIoBuffer[Index]);\r | |
905 | if (BlockIoDevicePath == NULL) {\r | |
906 | continue;\r | |
907 | }\r | |
908 | \r | |
909 | if (BmMatchPartitionDevicePathNode (BlockIoDevicePath, (HARDDRIVE_DEVICE_PATH *) FilePath)) {\r | |
910 | //\r | |
911 | // Find the matched partition device path\r | |
912 | //\r | |
913 | TempDevicePath = AppendDevicePath (BlockIoDevicePath, NextDevicePathNode (FilePath));\r | |
4ed2440d | 914 | FileBuffer = EfiBootManagerGetLoadOptionBuffer (TempDevicePath, FullPath, FileSize);\r |
067ed98a RN |
915 | FreePool (TempDevicePath);\r |
916 | \r | |
917 | if (FileBuffer != NULL) {\r | |
918 | BmCachePartitionDevicePath (&CachedDevicePath, BlockIoDevicePath);\r | |
919 | \r | |
920 | //\r | |
921 | // Save the matching Device Path so we don't need to do a connect all next time\r | |
922 | // Failing to save only impacts performance next time expanding the short-form device path\r | |
923 | //\r | |
924 | Status = gRT->SetVariable (\r | |
925 | L"HDDP",\r | |
926 | &mBmHardDriveBootVariableGuid,\r | |
927 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
928 | GetDevicePathSize (CachedDevicePath),\r | |
929 | CachedDevicePath\r | |
930 | );\r | |
931 | \r | |
932 | break;\r | |
933 | }\r | |
934 | }\r | |
935 | }\r | |
936 | \r | |
937 | if (CachedDevicePath != NULL) {\r | |
938 | FreePool (CachedDevicePath);\r | |
939 | }\r | |
940 | if (BlockIoBuffer != NULL) {\r | |
941 | FreePool (BlockIoBuffer);\r | |
942 | }\r | |
943 | return FileBuffer;\r | |
944 | }\r | |
945 | \r | |
946 | /**\r | |
947 | Expand the media device path which points to a BlockIo or SimpleFileSystem instance\r | |
948 | by appending EFI_REMOVABLE_MEDIA_FILE_NAME.\r | |
949 | \r | |
950 | @param DevicePath The media device path pointing to a BlockIo or SimpleFileSystem instance.\r | |
951 | @param FullPath Return the full device path pointing to the load option.\r | |
952 | @param FileSize Return the size of the load option.\r | |
953 | \r | |
954 | @return The load option buffer.\r | |
955 | **/\r | |
956 | VOID *\r | |
957 | BmExpandMediaDevicePath (\r | |
958 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
959 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
960 | OUT UINTN *FileSize\r | |
961 | )\r | |
962 | {\r | |
963 | EFI_STATUS Status;\r | |
964 | EFI_HANDLE Handle;\r | |
965 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
966 | VOID *Buffer;\r | |
967 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
968 | UINTN Size;\r | |
969 | UINTN TempSize;\r | |
970 | EFI_HANDLE *SimpleFileSystemHandles;\r | |
971 | UINTN NumberSimpleFileSystemHandles;\r | |
972 | UINTN Index;\r | |
973 | VOID *FileBuffer;\r | |
974 | UINT32 AuthenticationStatus;\r | |
975 | \r | |
976 | //\r | |
977 | // Check whether the device is connected\r | |
978 | //\r | |
979 | TempDevicePath = DevicePath;\r | |
980 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &TempDevicePath, &Handle);\r | |
981 | if (!EFI_ERROR (Status)) {\r | |
982 | ASSERT (IsDevicePathEnd (TempDevicePath));\r | |
983 | \r | |
984 | TempDevicePath = FileDevicePath (Handle, EFI_REMOVABLE_MEDIA_FILE_NAME);\r | |
985 | FileBuffer = GetFileBufferByFilePath (TRUE, TempDevicePath, FileSize, &AuthenticationStatus);\r | |
986 | if (FileBuffer == NULL) {\r | |
987 | FreePool (TempDevicePath);\r | |
988 | TempDevicePath = NULL;\r | |
989 | }\r | |
990 | *FullPath = TempDevicePath;\r | |
991 | return FileBuffer;\r | |
992 | }\r | |
993 | \r | |
994 | //\r | |
995 | // For device boot option only pointing to the removable device handle, \r | |
996 | // should make sure all its children handles (its child partion or media handles) are created and connected. \r | |
997 | //\r | |
998 | gBS->ConnectController (Handle, NULL, NULL, TRUE);\r | |
999 | \r | |
1000 | //\r | |
1001 | // Issue a dummy read to the device to check for media change.\r | |
1002 | // When the removable media is changed, any Block IO read/write will\r | |
1003 | // cause the BlockIo protocol be reinstalled and EFI_MEDIA_CHANGED is\r | |
1004 | // returned. After the Block IO protocol is reinstalled, subsequent\r | |
1005 | // Block IO read/write will success.\r | |
1006 | //\r | |
1007 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &TempDevicePath, &Handle);\r | |
1008 | ASSERT_EFI_ERROR (Status);\r | |
1009 | Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **) &BlockIo);\r | |
1010 | ASSERT_EFI_ERROR (Status);\r | |
1011 | Buffer = AllocatePool (BlockIo->Media->BlockSize);\r | |
1012 | if (Buffer != NULL) {\r | |
1013 | BlockIo->ReadBlocks (\r | |
1014 | BlockIo,\r | |
1015 | BlockIo->Media->MediaId,\r | |
1016 | 0,\r | |
1017 | BlockIo->Media->BlockSize,\r | |
1018 | Buffer\r | |
1019 | );\r | |
1020 | FreePool (Buffer);\r | |
1021 | }\r | |
1022 | \r | |
1023 | //\r | |
1024 | // Detect the the default boot file from removable Media\r | |
1025 | //\r | |
1026 | FileBuffer = NULL;\r | |
1027 | *FullPath = NULL;\r | |
1028 | Size = GetDevicePathSize (DevicePath) - END_DEVICE_PATH_LENGTH;\r | |
1029 | gBS->LocateHandleBuffer (\r | |
1030 | ByProtocol,\r | |
1031 | &gEfiSimpleFileSystemProtocolGuid,\r | |
1032 | NULL,\r | |
1033 | &NumberSimpleFileSystemHandles,\r | |
1034 | &SimpleFileSystemHandles\r | |
1035 | );\r | |
1036 | for (Index = 0; Index < NumberSimpleFileSystemHandles; Index++) {\r | |
1037 | //\r | |
1038 | // Get the device path size of SimpleFileSystem handle\r | |
1039 | //\r | |
1040 | TempDevicePath = DevicePathFromHandle (SimpleFileSystemHandles[Index]);\r | |
1041 | TempSize = GetDevicePathSize (TempDevicePath) - END_DEVICE_PATH_LENGTH;\r | |
1042 | //\r | |
1043 | // Check whether the device path of boot option is part of the SimpleFileSystem handle's device path\r | |
1044 | //\r | |
1045 | if ((Size <= TempSize) && (CompareMem (TempDevicePath, DevicePath, Size) == 0)) {\r | |
1046 | TempDevicePath = FileDevicePath (SimpleFileSystemHandles[Index], EFI_REMOVABLE_MEDIA_FILE_NAME);\r | |
1047 | FileBuffer = GetFileBufferByFilePath (TRUE, TempDevicePath, FileSize, &AuthenticationStatus);\r | |
1048 | if (FileBuffer != NULL) {\r | |
1049 | *FullPath = TempDevicePath;\r | |
1050 | break;\r | |
1051 | }\r | |
1052 | FreePool (TempDevicePath);\r | |
1053 | }\r | |
1054 | }\r | |
1055 | \r | |
1056 | if (SimpleFileSystemHandles != NULL) {\r | |
1057 | FreePool (SimpleFileSystemHandles);\r | |
1058 | }\r | |
1059 | \r | |
1060 | return FileBuffer;\r | |
1061 | }\r | |
1062 | \r | |
bf5328f0 RN |
1063 | /**\r |
1064 | Check whether Left and Right are the same without matching the specific\r | |
1065 | device path data in IP device path and URI device path node.\r | |
1066 | \r | |
1067 | @retval TRUE Left and Right are the same.\r | |
1068 | @retval FALSE Left and Right are the different.\r | |
1069 | **/\r | |
1070 | BOOLEAN\r | |
1071 | BmMatchHttpBootDevicePath (\r | |
1072 | IN EFI_DEVICE_PATH_PROTOCOL *Left,\r | |
1073 | IN EFI_DEVICE_PATH_PROTOCOL *Right\r | |
1074 | )\r | |
1075 | {\r | |
1076 | for (; !IsDevicePathEnd (Left) && !IsDevicePathEnd (Right)\r | |
1077 | ; Left = NextDevicePathNode (Left), Right = NextDevicePathNode (Right)\r | |
1078 | ) {\r | |
1079 | if (CompareMem (Left, Right, DevicePathNodeLength (Left)) != 0) {\r | |
1080 | if ((DevicePathType (Left) != MESSAGING_DEVICE_PATH) || (DevicePathType (Right) != MESSAGING_DEVICE_PATH)) {\r | |
1081 | return FALSE;\r | |
1082 | }\r | |
1083 | \r | |
1084 | if (((DevicePathSubType (Left) != MSG_IPv4_DP) || (DevicePathSubType (Right) != MSG_IPv4_DP)) &&\r | |
1085 | ((DevicePathSubType (Left) != MSG_IPv6_DP) || (DevicePathSubType (Right) != MSG_IPv6_DP)) &&\r | |
1086 | ((DevicePathSubType (Left) != MSG_URI_DP) || (DevicePathSubType (Right) != MSG_URI_DP))\r | |
1087 | ) {\r | |
1088 | return FALSE;\r | |
1089 | }\r | |
1090 | }\r | |
1091 | }\r | |
1092 | return (BOOLEAN) (IsDevicePathEnd (Left) && IsDevicePathEnd (Right));\r | |
1093 | }\r | |
1094 | \r | |
f5c12172 RN |
1095 | /**\r |
1096 | Get the file buffer from the file system produced by Load File instance.\r | |
1097 | \r | |
1098 | @param LoadFileHandle The handle of LoadFile instance.\r | |
1099 | @param FullPath Return the full device path pointing to the load option.\r | |
1100 | @param FileSize Return the size of the load option.\r | |
339ae051 | 1101 | @param RamDiskHandle Return the RAM Disk handle.\r |
f5c12172 RN |
1102 | \r |
1103 | @return The load option buffer.\r | |
1104 | **/\r | |
1105 | VOID *\r | |
026ede49 | 1106 | BmGetFileBufferFromLoadFileSystem (\r |
f5c12172 RN |
1107 | IN EFI_HANDLE LoadFileHandle,\r |
1108 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
339ae051 RN |
1109 | OUT UINTN *FileSize,\r |
1110 | OUT EFI_HANDLE *RamDiskHandle\r | |
f5c12172 RN |
1111 | )\r |
1112 | {\r | |
1113 | EFI_STATUS Status;\r | |
1114 | EFI_HANDLE Handle;\r | |
1115 | EFI_HANDLE *Handles;\r | |
1116 | UINTN HandleCount;\r | |
1117 | UINTN Index;\r | |
1118 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
1119 | \r | |
1120 | Status = gBS->LocateHandleBuffer (\r | |
1121 | ByProtocol,\r | |
1122 | &gEfiBlockIoProtocolGuid,\r | |
1123 | NULL,\r | |
1124 | &HandleCount,\r | |
1125 | &Handles\r | |
1126 | );\r | |
1127 | if (EFI_ERROR (Status)) {\r | |
1128 | Handles = NULL;\r | |
1129 | HandleCount = 0;\r | |
1130 | }\r | |
eeab16c8 RN |
1131 | \r |
1132 | Handle = NULL;\r | |
f5c12172 RN |
1133 | for (Index = 0; Index < HandleCount; Index++) {\r |
1134 | Node = DevicePathFromHandle (Handles[Index]);\r | |
1135 | Status = gBS->LocateDevicePath (&gEfiLoadFileProtocolGuid, &Node, &Handle);\r | |
1136 | if (!EFI_ERROR (Status) &&\r | |
1137 | (Handle == LoadFileHandle) &&\r | |
1138 | (DevicePathType (Node) == MEDIA_DEVICE_PATH) && (DevicePathSubType (Node) == MEDIA_RAM_DISK_DP)) {\r | |
1139 | Handle = Handles[Index];\r | |
1140 | break;\r | |
1141 | }\r | |
1142 | }\r | |
1143 | \r | |
1144 | if (Handles != NULL) {\r | |
1145 | FreePool (Handles);\r | |
1146 | }\r | |
1147 | \r | |
339ae051 RN |
1148 | if (Index == HandleCount) {\r |
1149 | Handle = NULL;\r | |
1150 | }\r | |
1151 | \r | |
1152 | *RamDiskHandle = Handle;\r | |
1153 | \r | |
1154 | if (Handle != NULL) {\r | |
f5c12172 RN |
1155 | return BmExpandMediaDevicePath (DevicePathFromHandle (Handle), FullPath, FileSize);\r |
1156 | } else {\r | |
1157 | return NULL;\r | |
1158 | }\r | |
1159 | }\r | |
1160 | \r | |
026ede49 | 1161 | \r |
339ae051 RN |
1162 | /**\r |
1163 | Return the RAM Disk device path created by LoadFile.\r | |
1164 | \r | |
1165 | @param FilePath The source file path.\r | |
1166 | \r | |
1167 | @return Callee-to-free RAM Disk device path\r | |
1168 | **/\r | |
1169 | EFI_DEVICE_PATH_PROTOCOL *\r | |
1170 | BmGetRamDiskDevicePath (\r | |
1171 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r | |
1172 | )\r | |
1173 | {\r | |
1174 | EFI_STATUS Status;\r | |
1175 | EFI_DEVICE_PATH_PROTOCOL *RamDiskDevicePath;\r | |
1176 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
1177 | EFI_HANDLE Handle;\r | |
1178 | \r | |
1179 | Node = FilePath;\r | |
1180 | Status = gBS->LocateDevicePath (&gEfiLoadFileProtocolGuid, &Node, &Handle);\r | |
1181 | if (!EFI_ERROR (Status) &&\r | |
1182 | (DevicePathType (Node) == MEDIA_DEVICE_PATH) &&\r | |
1183 | (DevicePathSubType (Node) == MEDIA_RAM_DISK_DP)\r | |
1184 | ) {\r | |
1185 | \r | |
1186 | //\r | |
1187 | // Construct the device path pointing to RAM Disk\r | |
1188 | //\r | |
1189 | Node = NextDevicePathNode (Node);\r | |
1190 | RamDiskDevicePath = DuplicateDevicePath (FilePath);\r | |
1191 | ASSERT (RamDiskDevicePath != NULL);\r | |
1192 | SetDevicePathEndNode ((VOID *) ((UINTN) RamDiskDevicePath + ((UINTN) Node - (UINTN) FilePath)));\r | |
1193 | return RamDiskDevicePath;\r | |
1194 | }\r | |
1195 | \r | |
1196 | return NULL;\r | |
1197 | }\r | |
1198 | \r | |
1199 | /**\r | |
1200 | Return the buffer and buffer size occupied by the RAM Disk.\r | |
1201 | \r | |
1202 | @param RamDiskDevicePath RAM Disk device path.\r | |
1203 | @param RamDiskSizeInPages Return RAM Disk size in pages.\r | |
1204 | \r | |
1205 | @retval RAM Disk buffer.\r | |
1206 | **/\r | |
1207 | VOID *\r | |
1208 | BmGetRamDiskMemoryInfo (\r | |
1209 | IN EFI_DEVICE_PATH_PROTOCOL *RamDiskDevicePath,\r | |
1210 | OUT UINTN *RamDiskSizeInPages\r | |
1211 | )\r | |
1212 | {\r | |
1213 | \r | |
1214 | EFI_STATUS Status;\r | |
1215 | EFI_HANDLE Handle;\r | |
1216 | UINT64 StartingAddr;\r | |
1217 | UINT64 EndingAddr;\r | |
1218 | \r | |
1219 | ASSERT (RamDiskDevicePath != NULL);\r | |
1220 | \r | |
1221 | *RamDiskSizeInPages = 0;\r | |
1222 | \r | |
1223 | //\r | |
1224 | // Get the buffer occupied by RAM Disk.\r | |
1225 | //\r | |
1226 | Status = gBS->LocateDevicePath (&gEfiLoadFileProtocolGuid, &RamDiskDevicePath, &Handle);\r | |
1227 | ASSERT_EFI_ERROR (Status);\r | |
1228 | ASSERT ((DevicePathType (RamDiskDevicePath) == MEDIA_DEVICE_PATH) &&\r | |
1229 | (DevicePathSubType (RamDiskDevicePath) == MEDIA_RAM_DISK_DP));\r | |
1230 | StartingAddr = ReadUnaligned64 ((UINT64 *) ((MEDIA_RAM_DISK_DEVICE_PATH *) RamDiskDevicePath)->StartingAddr);\r | |
1231 | EndingAddr = ReadUnaligned64 ((UINT64 *) ((MEDIA_RAM_DISK_DEVICE_PATH *) RamDiskDevicePath)->EndingAddr);\r | |
1232 | *RamDiskSizeInPages = EFI_SIZE_TO_PAGES ((UINTN) (EndingAddr - StartingAddr + 1));\r | |
1233 | return (VOID *) (UINTN) StartingAddr;\r | |
1234 | }\r | |
1235 | \r | |
1236 | /**\r | |
1237 | Destroy the RAM Disk.\r | |
1238 | \r | |
1239 | The destroy operation includes to call RamDisk.Unregister to\r | |
1240 | unregister the RAM DISK from RAM DISK driver, free the memory\r | |
1241 | allocated for the RAM Disk.\r | |
1242 | \r | |
1243 | @param RamDiskDevicePath RAM Disk device path.\r | |
1244 | **/\r | |
1245 | VOID\r | |
1246 | BmDestroyRamDisk (\r | |
1247 | IN EFI_DEVICE_PATH_PROTOCOL *RamDiskDevicePath\r | |
1248 | )\r | |
1249 | {\r | |
1250 | EFI_STATUS Status;\r | |
1251 | VOID *RamDiskBuffer;\r | |
1252 | UINTN RamDiskSizeInPages;\r | |
1253 | \r | |
1254 | ASSERT (RamDiskDevicePath != NULL);\r | |
1255 | \r | |
1256 | RamDiskBuffer = BmGetRamDiskMemoryInfo (RamDiskDevicePath, &RamDiskSizeInPages);\r | |
1257 | \r | |
1258 | //\r | |
1259 | // Destroy RAM Disk.\r | |
1260 | //\r | |
1261 | if (mRamDisk == NULL) {\r | |
1262 | Status = gBS->LocateProtocol (&gEfiRamDiskProtocolGuid, NULL, (VOID *) &mRamDisk);\r | |
1263 | ASSERT_EFI_ERROR (Status);\r | |
1264 | }\r | |
1265 | Status = mRamDisk->Unregister (RamDiskDevicePath);\r | |
1266 | ASSERT_EFI_ERROR (Status);\r | |
1267 | FreePages (RamDiskBuffer, RamDiskSizeInPages);\r | |
1268 | }\r | |
1269 | \r | |
026ede49 RN |
1270 | /**\r |
1271 | Get the file buffer from the specified Load File instance.\r | |
1272 | \r | |
1273 | @param LoadFileHandle The specified Load File instance.\r | |
1274 | @param FilePath The file path which will pass to LoadFile().\r | |
1275 | @param FullPath Return the full device path pointing to the load option.\r | |
1276 | @param FileSize Return the size of the load option.\r | |
1277 | \r | |
1278 | @return The load option buffer or NULL if fails.\r | |
1279 | **/\r | |
1280 | VOID *\r | |
1281 | BmGetFileBufferFromLoadFile (\r | |
339ae051 | 1282 | IN EFI_HANDLE LoadFileHandle,\r |
026ede49 RN |
1283 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r |
1284 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
1285 | OUT UINTN *FileSize\r | |
1286 | )\r | |
1287 | {\r | |
1288 | EFI_STATUS Status;\r | |
1289 | EFI_LOAD_FILE_PROTOCOL *LoadFile;\r | |
1290 | VOID *FileBuffer;\r | |
1291 | BOOLEAN LoadFileSystem;\r | |
339ae051 | 1292 | EFI_HANDLE RamDiskHandle;\r |
026ede49 RN |
1293 | UINTN BufferSize;\r |
1294 | \r | |
1295 | *FileSize = 0;\r | |
1296 | \r | |
1297 | Status = gBS->OpenProtocol (\r | |
1298 | LoadFileHandle,\r | |
1299 | &gEfiLoadFileProtocolGuid,\r | |
1300 | (VOID **) &LoadFile,\r | |
1301 | gImageHandle,\r | |
1302 | NULL,\r | |
1303 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
1304 | );\r | |
1305 | ASSERT_EFI_ERROR (Status);\r | |
1306 | \r | |
1307 | FileBuffer = NULL;\r | |
1308 | BufferSize = 0;\r | |
1309 | Status = LoadFile->LoadFile (LoadFile, FilePath, TRUE, &BufferSize, FileBuffer);\r | |
1310 | if ((Status != EFI_WARN_FILE_SYSTEM) && (Status != EFI_BUFFER_TOO_SMALL)) {\r | |
1311 | return NULL;\r | |
1312 | }\r | |
1313 | \r | |
1314 | LoadFileSystem = (BOOLEAN) (Status == EFI_WARN_FILE_SYSTEM);\r | |
1315 | FileBuffer = LoadFileSystem ? AllocateReservedPages (EFI_SIZE_TO_PAGES (BufferSize)) : AllocatePool (BufferSize);\r | |
1316 | if (FileBuffer == NULL) {\r | |
1317 | return NULL;\r | |
1318 | }\r | |
1319 | \r | |
1320 | Status = LoadFile->LoadFile (LoadFile, FilePath, TRUE, &BufferSize, FileBuffer);\r | |
1321 | if (EFI_ERROR (Status)) {\r | |
1322 | if (LoadFileSystem) {\r | |
1323 | FreePages (FileBuffer, EFI_SIZE_TO_PAGES (BufferSize));\r | |
1324 | } else {\r | |
1325 | FreePool (FileBuffer);\r | |
1326 | }\r | |
1327 | return NULL;\r | |
1328 | }\r | |
1329 | \r | |
1330 | if (LoadFileSystem) {\r | |
339ae051 RN |
1331 | FileBuffer = BmGetFileBufferFromLoadFileSystem (LoadFileHandle, FullPath, FileSize, &RamDiskHandle);\r |
1332 | if (FileBuffer == NULL) {\r | |
1333 | //\r | |
1334 | // If there is no bootable executable in the populated\r | |
1335 | //\r | |
1336 | BmDestroyRamDisk (DevicePathFromHandle (RamDiskHandle));\r | |
1337 | }\r | |
026ede49 RN |
1338 | } else {\r |
1339 | *FileSize = BufferSize;\r | |
1340 | *FullPath = DuplicateDevicePath (DevicePathFromHandle (LoadFileHandle));\r | |
1341 | }\r | |
1342 | \r | |
1343 | return FileBuffer;\r | |
1344 | }\r | |
1345 | \r | |
bf5328f0 | 1346 | /**\r |
026ede49 | 1347 | Get the file buffer from all the Load File instances.\r |
bf5328f0 RN |
1348 | \r |
1349 | @param FilePath The media device path pointing to a LoadFile instance.\r | |
1350 | @param FullPath Return the full device path pointing to the load option.\r | |
1351 | @param FileSize Return the size of the load option.\r | |
1352 | \r | |
1353 | @return The load option buffer.\r | |
1354 | **/\r | |
1355 | VOID *\r | |
026ede49 | 1356 | BmGetFileBufferFromLoadFiles (\r |
bf5328f0 RN |
1357 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r |
1358 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
1359 | OUT UINTN *FileSize\r | |
1360 | )\r | |
1361 | {\r | |
1362 | EFI_STATUS Status;\r | |
1363 | EFI_HANDLE Handle;\r | |
bf5328f0 RN |
1364 | EFI_HANDLE *Handles;\r |
1365 | UINTN HandleCount;\r | |
1366 | UINTN Index;\r | |
1367 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
bf5328f0 RN |
1368 | \r |
1369 | //\r | |
1370 | // Get file buffer from load file instance.\r | |
1371 | //\r | |
1372 | Node = FilePath;\r | |
1373 | Status = gBS->LocateDevicePath (&gEfiLoadFileProtocolGuid, &Node, &Handle);\r | |
1374 | if (!EFI_ERROR (Status) && IsDevicePathEnd (Node)) {\r | |
1375 | //\r | |
1376 | // When wide match happens, pass full device path to LoadFile (),\r | |
1377 | // otherwise, pass remaining device path to LoadFile ().\r | |
1378 | //\r | |
1379 | FilePath = Node;\r | |
1380 | } else {\r | |
1381 | Handle = NULL;\r | |
1382 | //\r | |
1383 | // Use wide match algorithm to find one when\r | |
1384 | // cannot find a LoadFile instance to exactly match the FilePath\r | |
1385 | //\r | |
1386 | Status = gBS->LocateHandleBuffer (\r | |
1387 | ByProtocol,\r | |
1388 | &gEfiLoadFileProtocolGuid,\r | |
1389 | NULL,\r | |
1390 | &HandleCount,\r | |
1391 | &Handles\r | |
1392 | );\r | |
1393 | if (EFI_ERROR (Status)) {\r | |
1394 | Handles = NULL;\r | |
1395 | HandleCount = 0;\r | |
1396 | }\r | |
1397 | for (Index = 0; Index < HandleCount; Index++) {\r | |
1398 | if (BmMatchHttpBootDevicePath (DevicePathFromHandle (Handles[Index]), FilePath)) {\r | |
1399 | Handle = Handles[Index];\r | |
1400 | break;\r | |
1401 | }\r | |
1402 | }\r | |
1403 | if (Handles != NULL) {\r | |
1404 | FreePool (Handles);\r | |
1405 | }\r | |
1406 | }\r | |
1407 | \r | |
1408 | if (Handle == NULL) {\r | |
1409 | return NULL;\r | |
1410 | }\r | |
1411 | \r | |
026ede49 | 1412 | return BmGetFileBufferFromLoadFile (Handle, FilePath, FullPath, FileSize);\r |
bf5328f0 RN |
1413 | }\r |
1414 | \r | |
067ed98a RN |
1415 | /**\r |
1416 | Get the load option by its device path.\r | |
1417 | \r | |
1418 | @param FilePath The device path pointing to a load option.\r | |
1419 | It could be a short-form device path.\r | |
1420 | @param FullPath Return the full device path of the load option after\r | |
1421 | short-form device path expanding.\r | |
1422 | Caller is responsible to free it.\r | |
1423 | @param FileSize Return the load option size.\r | |
1424 | \r | |
1425 | @return The load option buffer. Caller is responsible to free the memory.\r | |
1426 | **/\r | |
1427 | VOID *\r | |
4ed2440d RN |
1428 | EFIAPI\r |
1429 | EfiBootManagerGetLoadOptionBuffer (\r | |
067ed98a RN |
1430 | IN EFI_DEVICE_PATH_PROTOCOL *FilePath,\r |
1431 | OUT EFI_DEVICE_PATH_PROTOCOL **FullPath,\r | |
1432 | OUT UINTN *FileSize\r | |
1433 | )\r | |
1434 | {\r | |
1435 | EFI_HANDLE Handle;\r | |
1436 | VOID *FileBuffer;\r | |
1437 | UINT32 AuthenticationStatus;\r | |
1438 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
1439 | EFI_STATUS Status;\r | |
1440 | \r | |
1441 | ASSERT ((FilePath != NULL) && (FullPath != NULL) && (FileSize != NULL));\r | |
1442 | \r | |
1443 | EfiBootManagerConnectDevicePath (FilePath, NULL);\r | |
1444 | \r | |
1445 | *FullPath = NULL;\r | |
1446 | *FileSize = 0;\r | |
1447 | FileBuffer = NULL;\r | |
1448 | \r | |
1449 | //\r | |
1450 | // Boot from media device by adding a default file name \EFI\BOOT\BOOT{machine type short-name}.EFI\r | |
1451 | //\r | |
1452 | Node = FilePath;\r | |
1453 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &Node, &Handle);\r | |
1454 | if (EFI_ERROR (Status)) {\r | |
1455 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &Node, &Handle);\r | |
1456 | }\r | |
1457 | \r | |
1458 | if (!EFI_ERROR (Status) && IsDevicePathEnd (Node)) {\r | |
1459 | return BmExpandMediaDevicePath (FilePath, FullPath, FileSize);\r | |
1460 | }\r | |
1461 | \r | |
1462 | //\r | |
1463 | // Expand the short-form device path to full device path\r | |
1464 | //\r | |
1465 | if ((DevicePathType (FilePath) == MEDIA_DEVICE_PATH) &&\r | |
1466 | (DevicePathSubType (FilePath) == MEDIA_HARDDRIVE_DP)) {\r | |
1467 | //\r | |
1468 | // Expand the Harddrive device path\r | |
1469 | //\r | |
1470 | return BmExpandPartitionDevicePath (FilePath, FullPath, FileSize);\r | |
ccb66799 RN |
1471 | } else if ((DevicePathType (FilePath) == MEDIA_DEVICE_PATH) &&\r |
1472 | (DevicePathSubType (FilePath) == MEDIA_FILEPATH_DP)) {\r | |
1473 | //\r | |
1474 | // Expand the File-path device path\r | |
1475 | //\r | |
1476 | return BmExpandFileDevicePath (FilePath, FullPath, FileSize);\r | |
4a285ec1 RN |
1477 | } else if ((DevicePathType (FilePath) == MESSAGING_DEVICE_PATH) &&\r |
1478 | (DevicePathSubType (FilePath) == MSG_URI_DP)) {\r | |
1479 | //\r | |
1480 | // Expand the URI device path\r | |
1481 | //\r | |
1482 | return BmExpandUriDevicePath (FilePath, FullPath, FileSize);\r | |
067ed98a RN |
1483 | } else {\r |
1484 | for (Node = FilePath; !IsDevicePathEnd (Node); Node = NextDevicePathNode (Node)) {\r | |
1485 | if ((DevicePathType (Node) == MESSAGING_DEVICE_PATH) &&\r | |
1486 | ((DevicePathSubType (Node) == MSG_USB_CLASS_DP) || (DevicePathSubType (Node) == MSG_USB_WWID_DP))) {\r | |
1487 | break;\r | |
1488 | }\r | |
1489 | }\r | |
1490 | \r | |
1491 | if (!IsDevicePathEnd (Node)) {\r | |
1492 | //\r | |
1493 | // Expand the USB WWID/Class device path\r | |
1494 | //\r | |
1495 | FileBuffer = BmExpandUsbDevicePath (FilePath, FullPath, FileSize, Node);\r | |
1496 | if ((FileBuffer == NULL) && (FilePath == Node)) {\r | |
1497 | //\r | |
1498 | // Boot Option device path starts with USB Class or USB WWID device path.\r | |
1499 | // For Boot Option device path which doesn't begin with the USB Class or\r | |
1500 | // USB WWID device path, it's not needed to connect again here.\r | |
1501 | //\r | |
1502 | BmConnectUsbShortFormDevicePath (FilePath);\r | |
1503 | FileBuffer = BmExpandUsbDevicePath (FilePath, FullPath, FileSize, Node);\r | |
1504 | }\r | |
1505 | return FileBuffer;\r | |
1506 | }\r | |
1507 | }\r | |
1508 | \r | |
1509 | //\r | |
525839ed | 1510 | // Get file buffer from FV file path.\r |
067ed98a | 1511 | //\r |
525839ed RN |
1512 | if (BmIsFvFilePath (FilePath)) {\r |
1513 | return BmGetFileBufferByFvFilePath (FilePath, FullPath, FileSize);\r | |
067ed98a RN |
1514 | }\r |
1515 | \r | |
1516 | //\r | |
bf5328f0 | 1517 | // Get file buffer from simple file system.\r |
067ed98a | 1518 | //\r |
de6c0eff | 1519 | Node = FilePath;\r |
bf5328f0 RN |
1520 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &Node, &Handle);\r |
1521 | if (!EFI_ERROR (Status)) {\r | |
1522 | FileBuffer = GetFileBufferByFilePath (TRUE, FilePath, FileSize, &AuthenticationStatus);\r | |
1523 | if (FileBuffer != NULL) {\r | |
de6c0eff | 1524 | *FullPath = DuplicateDevicePath (FilePath);\r |
de6c0eff | 1525 | }\r |
bf5328f0 | 1526 | return FileBuffer;\r |
067ed98a RN |
1527 | }\r |
1528 | \r | |
026ede49 | 1529 | return BmGetFileBufferFromLoadFiles (FilePath, FullPath, FileSize);\r |
067ed98a RN |
1530 | }\r |
1531 | \r | |
1532 | /**\r | |
1533 | Attempt to boot the EFI boot option. This routine sets L"BootCurent" and\r | |
1534 | also signals the EFI ready to boot event. If the device path for the option\r | |
1535 | starts with a BBS device path a legacy boot is attempted via the registered \r | |
1536 | gLegacyBoot function. Short form device paths are also supported via this \r | |
1537 | rountine. A device path starting with MEDIA_HARDDRIVE_DP, MSG_USB_WWID_DP,\r | |
1538 | MSG_USB_CLASS_DP gets expaned out to find the first device that matches.\r | |
1539 | If the BootOption Device Path fails the removable media boot algorithm \r | |
1540 | is attempted (\EFI\BOOTIA32.EFI, \EFI\BOOTX64.EFI,... only one file type \r | |
1541 | is tried per processor type)\r | |
1542 | \r | |
1543 | @param BootOption Boot Option to try and boot.\r | |
1544 | On return, BootOption->Status contains the boot status.\r | |
1545 | EFI_SUCCESS BootOption was booted\r | |
1546 | EFI_UNSUPPORTED A BBS device path was found with no valid callback\r | |
1547 | registered via EfiBootManagerInitialize().\r | |
1548 | EFI_NOT_FOUND The BootOption was not found on the system\r | |
1549 | !EFI_SUCCESS BootOption failed with this error status\r | |
1550 | \r | |
1551 | **/\r | |
1552 | VOID\r | |
1553 | EFIAPI\r | |
1554 | EfiBootManagerBoot (\r | |
1555 | IN EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
1556 | )\r | |
1557 | {\r | |
1558 | EFI_STATUS Status;\r | |
1559 | EFI_HANDLE ImageHandle;\r | |
1560 | EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;\r | |
1561 | UINT16 Uint16;\r | |
1562 | UINTN OptionNumber;\r | |
1563 | UINTN OriginalOptionNumber;\r | |
1564 | EFI_DEVICE_PATH_PROTOCOL *FilePath;\r | |
1565 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
339ae051 | 1566 | EFI_DEVICE_PATH_PROTOCOL *RamDiskDevicePath;\r |
067ed98a RN |
1567 | EFI_HANDLE FvHandle;\r |
1568 | VOID *FileBuffer;\r | |
1569 | UINTN FileSize;\r | |
1570 | EFI_BOOT_LOGO_PROTOCOL *BootLogo;\r | |
1571 | EFI_EVENT LegacyBootEvent;\r | |
024bdafc | 1572 | UINTN RamDiskSizeInPages;\r |
067ed98a RN |
1573 | \r |
1574 | if (BootOption == NULL) {\r | |
1575 | return;\r | |
1576 | }\r | |
1577 | \r | |
1578 | if (BootOption->FilePath == NULL || BootOption->OptionType != LoadOptionTypeBoot) {\r | |
1579 | BootOption->Status = EFI_INVALID_PARAMETER;\r | |
1580 | return;\r | |
1581 | }\r | |
1582 | \r | |
1583 | //\r | |
1584 | // 1. Create Boot#### for a temporary boot if there is no match Boot#### (i.e. a boot by selected a EFI Shell using "Boot From File")\r | |
1585 | //\r | |
1586 | OptionNumber = BmFindBootOptionInVariable (BootOption);\r | |
1587 | if (OptionNumber == LoadOptionNumberUnassigned) {\r | |
1588 | Status = BmGetFreeOptionNumber (LoadOptionTypeBoot, &Uint16);\r | |
1589 | if (!EFI_ERROR (Status)) {\r | |
1590 | //\r | |
1591 | // Save the BootOption->OptionNumber to restore later\r | |
1592 | //\r | |
1593 | OptionNumber = Uint16;\r | |
1594 | OriginalOptionNumber = BootOption->OptionNumber;\r | |
1595 | BootOption->OptionNumber = OptionNumber;\r | |
1596 | Status = EfiBootManagerLoadOptionToVariable (BootOption);\r | |
1597 | BootOption->OptionNumber = OriginalOptionNumber;\r | |
1598 | }\r | |
1599 | \r | |
1600 | if (EFI_ERROR (Status)) {\r | |
1601 | DEBUG ((EFI_D_ERROR, "[Bds] Failed to create Boot#### for a temporary boot - %r!\n", Status));\r | |
1602 | BootOption->Status = Status;\r | |
1603 | return ;\r | |
1604 | }\r | |
1605 | }\r | |
1606 | \r | |
1607 | //\r | |
1608 | // 2. Set BootCurrent\r | |
1609 | //\r | |
1610 | Uint16 = (UINT16) OptionNumber;\r | |
1611 | BmSetVariableAndReportStatusCodeOnError (\r | |
1612 | L"BootCurrent",\r | |
1613 | &gEfiGlobalVariableGuid,\r | |
1614 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
1615 | sizeof (UINT16),\r | |
1616 | &Uint16\r | |
1617 | );\r | |
1618 | \r | |
1619 | //\r | |
1620 | // 3. Signal the EVT_SIGNAL_READY_TO_BOOT event when we are about to load and execute\r | |
1621 | // the boot option.\r | |
1622 | //\r | |
1623 | Node = BootOption->FilePath;\r | |
1624 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &Node, &FvHandle);\r | |
1625 | if (!EFI_ERROR (Status) && CompareGuid (\r | |
1626 | EfiGetNameGuidFromFwVolDevicePathNode ((CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) Node),\r | |
1627 | PcdGetPtr (PcdBootManagerMenuFile)\r | |
1628 | )) {\r | |
1629 | DEBUG ((EFI_D_INFO, "[Bds] Booting Boot Manager Menu.\n"));\r | |
1630 | BmStopHotkeyService (NULL, NULL);\r | |
1631 | } else {\r | |
1632 | EfiSignalEventReadyToBoot();\r | |
1633 | //\r | |
1634 | // Report Status Code to indicate ReadyToBoot was signalled\r | |
1635 | //\r | |
1636 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_READY_TO_BOOT_EVENT));\r | |
1637 | //\r | |
1638 | // 4. Repair system through DriverHealth protocol\r | |
1639 | //\r | |
1640 | BmRepairAllControllers ();\r | |
1641 | }\r | |
1642 | \r | |
1643 | PERF_START_EX (gImageHandle, "BdsAttempt", NULL, 0, (UINT32) OptionNumber);\r | |
1644 | \r | |
1645 | //\r | |
1646 | // 5. Load EFI boot option to ImageHandle\r | |
1647 | //\r | |
339ae051 RN |
1648 | ImageHandle = NULL;\r |
1649 | RamDiskDevicePath = NULL;\r | |
067ed98a RN |
1650 | if (DevicePathType (BootOption->FilePath) != BBS_DEVICE_PATH) {\r |
1651 | Status = EFI_NOT_FOUND;\r | |
4ed2440d | 1652 | FileBuffer = EfiBootManagerGetLoadOptionBuffer (BootOption->FilePath, &FilePath, &FileSize);\r |
339ae051 RN |
1653 | if (FileBuffer != NULL) {\r |
1654 | RamDiskDevicePath = BmGetRamDiskDevicePath (FilePath);\r | |
1655 | }\r | |
067ed98a RN |
1656 | DEBUG_CODE (\r |
1657 | if (FileBuffer != NULL && CompareMem (BootOption->FilePath, FilePath, GetDevicePathSize (FilePath)) != 0) {\r | |
1658 | DEBUG ((EFI_D_INFO, "[Bds] DevicePath expand: "));\r | |
1659 | BmPrintDp (BootOption->FilePath);\r | |
1660 | DEBUG ((EFI_D_INFO, " -> "));\r | |
1661 | BmPrintDp (FilePath);\r | |
1662 | DEBUG ((EFI_D_INFO, "\n"));\r | |
1663 | }\r | |
1664 | );\r | |
1665 | if (BmIsLoadOptionPeHeaderValid (BootOption->OptionType, FileBuffer, FileSize)) {\r | |
1666 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, PcdGet32 (PcdProgressCodeOsLoaderLoad));\r | |
1667 | Status = gBS->LoadImage (\r | |
1668 | TRUE,\r | |
1669 | gImageHandle,\r | |
1670 | FilePath,\r | |
1671 | FileBuffer,\r | |
1672 | FileSize,\r | |
1673 | &ImageHandle\r | |
1674 | );\r | |
1675 | }\r | |
1676 | if (FileBuffer != NULL) {\r | |
1677 | FreePool (FileBuffer);\r | |
1678 | }\r | |
1679 | if (FilePath != NULL) {\r | |
1680 | FreePool (FilePath);\r | |
1681 | }\r | |
1682 | \r | |
1683 | if (EFI_ERROR (Status)) {\r | |
1684 | //\r | |
1685 | // Report Status Code to indicate that the failure to load boot option\r | |
1686 | //\r | |
1687 | REPORT_STATUS_CODE (\r | |
1688 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
1689 | (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_EC_BOOT_OPTION_LOAD_ERROR)\r | |
1690 | );\r | |
1691 | BootOption->Status = Status;\r | |
339ae051 RN |
1692 | //\r |
1693 | // Destroy the RAM disk\r | |
1694 | //\r | |
1695 | if (RamDiskDevicePath != NULL) {\r | |
1696 | BmDestroyRamDisk (RamDiskDevicePath);\r | |
1697 | FreePool (RamDiskDevicePath);\r | |
1698 | }\r | |
067ed98a RN |
1699 | return;\r |
1700 | }\r | |
1701 | }\r | |
1702 | \r | |
1703 | //\r | |
1704 | // 6. Adjust the different type memory page number just before booting\r | |
1705 | // and save the updated info into the variable for next boot to use\r | |
1706 | //\r | |
b1bb6f59 RN |
1707 | if (RamDiskDevicePath == NULL) {\r |
1708 | RamDiskSizeInPages = 0;\r | |
1709 | } else {\r | |
1710 | BmGetRamDiskMemoryInfo (RamDiskDevicePath, &RamDiskSizeInPages);\r | |
1711 | }\r | |
665b26ba | 1712 | BmSetMemoryTypeInformationVariable (\r |
024bdafc RN |
1713 | (BOOLEAN) ((BootOption->Attributes & LOAD_OPTION_CATEGORY) == LOAD_OPTION_CATEGORY_BOOT),\r |
1714 | RamDiskSizeInPages\r | |
665b26ba | 1715 | );\r |
067ed98a RN |
1716 | \r |
1717 | DEBUG_CODE_BEGIN();\r | |
1718 | if (BootOption->Description == NULL) {\r | |
1719 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "[Bds]Booting from unknown device path\n"));\r | |
1720 | } else {\r | |
1721 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "[Bds]Booting %s\n", BootOption->Description));\r | |
1722 | }\r | |
1723 | DEBUG_CODE_END();\r | |
1724 | \r | |
1725 | //\r | |
1726 | // Check to see if we should legacy BOOT. If yes then do the legacy boot\r | |
1727 | // Write boot to OS performance data for Legacy boot\r | |
1728 | //\r | |
1729 | if ((DevicePathType (BootOption->FilePath) == BBS_DEVICE_PATH) && (DevicePathSubType (BootOption->FilePath) == BBS_BBS_DP)) {\r | |
1730 | if (mBmLegacyBoot != NULL) {\r | |
1731 | //\r | |
1732 | // Write boot to OS performance data for legacy boot.\r | |
1733 | //\r | |
1734 | PERF_CODE (\r | |
1735 | //\r | |
1736 | // Create an event to be signalled when Legacy Boot occurs to write performance data.\r | |
1737 | //\r | |
1738 | Status = EfiCreateEventLegacyBootEx(\r | |
1739 | TPL_NOTIFY,\r | |
1740 | BmWriteBootToOsPerformanceData,\r | |
1741 | NULL, \r | |
1742 | &LegacyBootEvent\r | |
1743 | );\r | |
1744 | ASSERT_EFI_ERROR (Status);\r | |
1745 | );\r | |
1746 | \r | |
1747 | mBmLegacyBoot (BootOption);\r | |
1748 | } else {\r | |
1749 | BootOption->Status = EFI_UNSUPPORTED;\r | |
1750 | }\r | |
1751 | \r | |
1752 | PERF_END_EX (gImageHandle, "BdsAttempt", NULL, 0, (UINT32) OptionNumber);\r | |
1753 | return;\r | |
1754 | }\r | |
1755 | \r | |
1756 | //\r | |
1757 | // Provide the image with its load options\r | |
1758 | //\r | |
1759 | Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &ImageInfo);\r | |
1760 | ASSERT_EFI_ERROR (Status);\r | |
1761 | \r | |
404bd442 RN |
1762 | if (!BmIsAutoCreateBootOption (BootOption)) {\r |
1763 | ImageInfo->LoadOptionsSize = BootOption->OptionalDataSize;\r | |
1764 | ImageInfo->LoadOptions = BootOption->OptionalData;\r | |
1765 | }\r | |
067ed98a RN |
1766 | \r |
1767 | //\r | |
1768 | // Clean to NULL because the image is loaded directly from the firmwares boot manager.\r | |
1769 | //\r | |
1770 | ImageInfo->ParentHandle = NULL;\r | |
1771 | \r | |
1772 | //\r | |
1773 | // Before calling the image, enable the Watchdog Timer for 5 minutes period\r | |
1774 | //\r | |
1775 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
1776 | \r | |
1777 | //\r | |
1778 | // Write boot to OS performance data for UEFI boot\r | |
1779 | //\r | |
1780 | PERF_CODE (\r | |
1781 | BmWriteBootToOsPerformanceData (NULL, NULL);\r | |
1782 | );\r | |
1783 | \r | |
1784 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, PcdGet32 (PcdProgressCodeOsLoaderStart));\r | |
1785 | \r | |
1786 | Status = gBS->StartImage (ImageHandle, &BootOption->ExitDataSize, &BootOption->ExitData);\r | |
1787 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Image Return Status = %r\n", Status));\r | |
1788 | BootOption->Status = Status;\r | |
1789 | if (EFI_ERROR (Status)) {\r | |
1790 | //\r | |
1791 | // Report Status Code to indicate that boot failure\r | |
1792 | //\r | |
1793 | REPORT_STATUS_CODE (\r | |
1794 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
1795 | (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_EC_BOOT_OPTION_FAILED)\r | |
1796 | );\r | |
1797 | }\r | |
1798 | PERF_END_EX (gImageHandle, "BdsAttempt", NULL, 0, (UINT32) OptionNumber);\r | |
1799 | \r | |
339ae051 RN |
1800 | //\r |
1801 | // Destroy the RAM disk\r | |
1802 | //\r | |
1803 | if (RamDiskDevicePath != NULL) {\r | |
1804 | BmDestroyRamDisk (RamDiskDevicePath);\r | |
1805 | FreePool (RamDiskDevicePath);\r | |
1806 | }\r | |
1807 | \r | |
067ed98a RN |
1808 | //\r |
1809 | // Clear the Watchdog Timer after the image returns\r | |
1810 | //\r | |
1811 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
1812 | \r | |
1813 | //\r | |
1814 | // Set Logo status invalid after trying one boot option\r | |
1815 | //\r | |
1816 | BootLogo = NULL;\r | |
1817 | Status = gBS->LocateProtocol (&gEfiBootLogoProtocolGuid, NULL, (VOID **) &BootLogo);\r | |
1818 | if (!EFI_ERROR (Status) && (BootLogo != NULL)) {\r | |
1819 | Status = BootLogo->SetBootLogo (BootLogo, NULL, 0, 0, 0, 0);\r | |
1820 | ASSERT_EFI_ERROR (Status);\r | |
1821 | }\r | |
1822 | \r | |
1823 | //\r | |
1824 | // Clear Boot Current\r | |
1825 | //\r | |
1826 | Status = gRT->SetVariable (\r | |
1827 | L"BootCurrent",\r | |
1828 | &gEfiGlobalVariableGuid,\r | |
1829 | 0,\r | |
1830 | 0,\r | |
1831 | NULL\r | |
1832 | );\r | |
1833 | //\r | |
1834 | // Deleting variable with current variable implementation shouldn't fail.\r | |
1835 | // When BootXXXX (e.g.: BootManagerMenu) boots BootYYYY, exiting BootYYYY causes BootCurrent deleted,\r | |
1836 | // exiting BootXXXX causes deleting BootCurrent returns EFI_NOT_FOUND.\r | |
1837 | //\r | |
1838 | ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_FOUND);\r | |
1839 | }\r | |
1840 | \r | |
1841 | /**\r | |
1842 | Check whether there is a instance in BlockIoDevicePath, which contain multi device path\r | |
1843 | instances, has the same partition node with HardDriveDevicePath device path\r | |
1844 | \r | |
1845 | @param BlockIoDevicePath Multi device path instances which need to check\r | |
1846 | @param HardDriveDevicePath A device path which starts with a hard drive media\r | |
1847 | device path.\r | |
1848 | \r | |
1849 | @retval TRUE There is a matched device path instance.\r | |
1850 | @retval FALSE There is no matched device path instance.\r | |
1851 | \r | |
1852 | **/\r | |
1853 | BOOLEAN\r | |
1854 | BmMatchPartitionDevicePathNode (\r | |
1855 | IN EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath,\r | |
1856 | IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath\r | |
1857 | )\r | |
1858 | {\r | |
1859 | HARDDRIVE_DEVICE_PATH *Node;\r | |
1860 | \r | |
1861 | if ((BlockIoDevicePath == NULL) || (HardDriveDevicePath == NULL)) {\r | |
1862 | return FALSE;\r | |
1863 | }\r | |
1864 | \r | |
1865 | //\r | |
1866 | // find the partition device path node\r | |
1867 | //\r | |
1868 | while (!IsDevicePathEnd (BlockIoDevicePath)) {\r | |
1869 | if ((DevicePathType (BlockIoDevicePath) == MEDIA_DEVICE_PATH) &&\r | |
1870 | (DevicePathSubType (BlockIoDevicePath) == MEDIA_HARDDRIVE_DP)\r | |
1871 | ) {\r | |
1872 | break;\r | |
1873 | }\r | |
1874 | \r | |
1875 | BlockIoDevicePath = NextDevicePathNode (BlockIoDevicePath);\r | |
1876 | }\r | |
1877 | \r | |
1878 | if (IsDevicePathEnd (BlockIoDevicePath)) {\r | |
1879 | return FALSE;\r | |
1880 | }\r | |
1881 | \r | |
1882 | //\r | |
1883 | // See if the harddrive device path in blockio matches the orig Hard Drive Node\r | |
1884 | //\r | |
1885 | Node = (HARDDRIVE_DEVICE_PATH *) BlockIoDevicePath;\r | |
1886 | \r | |
1887 | //\r | |
1888 | // Match Signature and PartitionNumber.\r | |
1889 | // Unused bytes in Signature are initiaized with zeros.\r | |
1890 | //\r | |
1891 | return (BOOLEAN) (\r | |
1892 | (Node->PartitionNumber == HardDriveDevicePath->PartitionNumber) &&\r | |
1893 | (Node->MBRType == HardDriveDevicePath->MBRType) &&\r | |
1894 | (Node->SignatureType == HardDriveDevicePath->SignatureType) &&\r | |
1895 | (CompareMem (Node->Signature, HardDriveDevicePath->Signature, sizeof (Node->Signature)) == 0)\r | |
1896 | );\r | |
1897 | }\r | |
1898 | \r | |
1899 | /**\r | |
1900 | Emuerate all possible bootable medias in the following order:\r | |
1901 | 1. Removable BlockIo - The boot option only points to the removable media\r | |
1902 | device, like USB key, DVD, Floppy etc.\r | |
1903 | 2. Fixed BlockIo - The boot option only points to a Fixed blockIo device,\r | |
1904 | like HardDisk.\r | |
1905 | 3. Non-BlockIo SimpleFileSystem - The boot option points to a device supporting\r | |
1906 | SimpleFileSystem Protocol, but not supporting BlockIo\r | |
1907 | protocol.\r | |
1908 | 4. LoadFile - The boot option points to the media supporting \r | |
1909 | LoadFile protocol.\r | |
1910 | Reference: UEFI Spec chapter 3.3 Boot Option Variables Default Boot Behavior\r | |
1911 | \r | |
1912 | @param BootOptionCount Return the boot option count which has been found.\r | |
1913 | \r | |
1914 | @retval Pointer to the boot option array.\r | |
1915 | **/\r | |
1916 | EFI_BOOT_MANAGER_LOAD_OPTION *\r | |
1917 | BmEnumerateBootOptions (\r | |
1918 | UINTN *BootOptionCount\r | |
1919 | )\r | |
1920 | {\r | |
1921 | EFI_STATUS Status;\r | |
1922 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
067ed98a RN |
1923 | UINTN HandleCount;\r |
1924 | EFI_HANDLE *Handles;\r | |
1925 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
1926 | UINTN Removable;\r | |
1927 | UINTN Index;\r | |
f41c71d2 | 1928 | CHAR16 *Description;\r |
067ed98a RN |
1929 | \r |
1930 | ASSERT (BootOptionCount != NULL);\r | |
1931 | \r | |
1932 | *BootOptionCount = 0;\r | |
1933 | BootOptions = NULL;\r | |
1934 | \r | |
1935 | //\r | |
1936 | // Parse removable block io followed by fixed block io\r | |
1937 | //\r | |
1938 | gBS->LocateHandleBuffer (\r | |
1939 | ByProtocol,\r | |
1940 | &gEfiBlockIoProtocolGuid,\r | |
1941 | NULL,\r | |
1942 | &HandleCount,\r | |
1943 | &Handles\r | |
1944 | );\r | |
1945 | \r | |
1946 | for (Removable = 0; Removable < 2; Removable++) {\r | |
1947 | for (Index = 0; Index < HandleCount; Index++) {\r | |
1948 | Status = gBS->HandleProtocol (\r | |
1949 | Handles[Index],\r | |
1950 | &gEfiBlockIoProtocolGuid,\r | |
1951 | (VOID **) &BlkIo\r | |
1952 | );\r | |
1953 | if (EFI_ERROR (Status)) {\r | |
1954 | continue;\r | |
1955 | }\r | |
1956 | \r | |
1957 | //\r | |
1958 | // Skip the logical partitions\r | |
1959 | //\r | |
1960 | if (BlkIo->Media->LogicalPartition) {\r | |
1961 | continue;\r | |
1962 | }\r | |
1963 | \r | |
1964 | //\r | |
1965 | // Skip the fixed block io then the removable block io\r | |
1966 | //\r | |
1967 | if (BlkIo->Media->RemovableMedia == ((Removable == 0) ? FALSE : TRUE)) {\r | |
1968 | continue;\r | |
1969 | }\r | |
1970 | \r | |
f41c71d2 | 1971 | Description = BmGetBootDescription (Handles[Index]);\r |
067ed98a RN |
1972 | BootOptions = ReallocatePool (\r |
1973 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
1974 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
1975 | BootOptions\r | |
1976 | );\r | |
1977 | ASSERT (BootOptions != NULL);\r | |
1978 | \r | |
1979 | Status = EfiBootManagerInitializeLoadOption (\r | |
1980 | &BootOptions[(*BootOptionCount)++],\r | |
1981 | LoadOptionNumberUnassigned,\r | |
1982 | LoadOptionTypeBoot,\r | |
1983 | LOAD_OPTION_ACTIVE,\r | |
f41c71d2 | 1984 | Description,\r |
067ed98a RN |
1985 | DevicePathFromHandle (Handles[Index]),\r |
1986 | NULL,\r | |
1987 | 0\r | |
1988 | );\r | |
1989 | ASSERT_EFI_ERROR (Status);\r | |
1990 | \r | |
f41c71d2 | 1991 | FreePool (Description);\r |
067ed98a RN |
1992 | }\r |
1993 | }\r | |
1994 | \r | |
1995 | if (HandleCount != 0) {\r | |
1996 | FreePool (Handles);\r | |
1997 | }\r | |
1998 | \r | |
1999 | //\r | |
2000 | // Parse simple file system not based on block io\r | |
2001 | //\r | |
067ed98a RN |
2002 | gBS->LocateHandleBuffer (\r |
2003 | ByProtocol,\r | |
2004 | &gEfiSimpleFileSystemProtocolGuid,\r | |
2005 | NULL,\r | |
2006 | &HandleCount,\r | |
2007 | &Handles\r | |
2008 | );\r | |
2009 | for (Index = 0; Index < HandleCount; Index++) {\r | |
2010 | Status = gBS->HandleProtocol (\r | |
2011 | Handles[Index],\r | |
2012 | &gEfiBlockIoProtocolGuid,\r | |
2013 | (VOID **) &BlkIo\r | |
2014 | );\r | |
2015 | if (!EFI_ERROR (Status)) {\r | |
2016 | //\r | |
2017 | // Skip if the file system handle supports a BlkIo protocol, which we've handled in above\r | |
2018 | //\r | |
2019 | continue;\r | |
2020 | }\r | |
f41c71d2 | 2021 | Description = BmGetBootDescription (Handles[Index]);\r |
067ed98a RN |
2022 | BootOptions = ReallocatePool (\r |
2023 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
2024 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
2025 | BootOptions\r | |
2026 | );\r | |
2027 | ASSERT (BootOptions != NULL);\r | |
2028 | \r | |
2029 | Status = EfiBootManagerInitializeLoadOption (\r | |
2030 | &BootOptions[(*BootOptionCount)++],\r | |
2031 | LoadOptionNumberUnassigned,\r | |
2032 | LoadOptionTypeBoot,\r | |
2033 | LOAD_OPTION_ACTIVE,\r | |
2034 | Description,\r | |
2035 | DevicePathFromHandle (Handles[Index]),\r | |
2036 | NULL,\r | |
2037 | 0\r | |
2038 | );\r | |
2039 | ASSERT_EFI_ERROR (Status);\r | |
f41c71d2 | 2040 | FreePool (Description);\r |
067ed98a RN |
2041 | }\r |
2042 | \r | |
2043 | if (HandleCount != 0) {\r | |
2044 | FreePool (Handles);\r | |
2045 | }\r | |
2046 | \r | |
2047 | //\r | |
2048 | // Parse load file, assuming UEFI Network boot option\r | |
2049 | //\r | |
2050 | gBS->LocateHandleBuffer (\r | |
2051 | ByProtocol,\r | |
2052 | &gEfiLoadFileProtocolGuid,\r | |
2053 | NULL,\r | |
2054 | &HandleCount,\r | |
2055 | &Handles\r | |
2056 | );\r | |
2057 | for (Index = 0; Index < HandleCount; Index++) {\r | |
2058 | \r | |
f41c71d2 | 2059 | Description = BmGetBootDescription (Handles[Index]);\r |
067ed98a RN |
2060 | BootOptions = ReallocatePool (\r |
2061 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
2062 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
2063 | BootOptions\r | |
2064 | );\r | |
2065 | ASSERT (BootOptions != NULL);\r | |
2066 | \r | |
2067 | Status = EfiBootManagerInitializeLoadOption (\r | |
2068 | &BootOptions[(*BootOptionCount)++],\r | |
2069 | LoadOptionNumberUnassigned,\r | |
2070 | LoadOptionTypeBoot,\r | |
2071 | LOAD_OPTION_ACTIVE,\r | |
2072 | Description,\r | |
2073 | DevicePathFromHandle (Handles[Index]),\r | |
2074 | NULL,\r | |
2075 | 0\r | |
2076 | );\r | |
2077 | ASSERT_EFI_ERROR (Status);\r | |
f41c71d2 | 2078 | FreePool (Description);\r |
067ed98a RN |
2079 | }\r |
2080 | \r | |
2081 | if (HandleCount != 0) {\r | |
2082 | FreePool (Handles);\r | |
2083 | }\r | |
2084 | \r | |
d948fe96 | 2085 | BmMakeBootOptionDescriptionUnique (BootOptions, *BootOptionCount);\r |
067ed98a RN |
2086 | return BootOptions;\r |
2087 | }\r | |
2088 | \r | |
2089 | /**\r | |
2090 | The function enumerates all boot options, creates them and registers them in the BootOrder variable.\r | |
2091 | **/\r | |
2092 | VOID\r | |
2093 | EFIAPI\r | |
2094 | EfiBootManagerRefreshAllBootOption (\r | |
2095 | VOID\r | |
2096 | )\r | |
2097 | {\r | |
2098 | EFI_STATUS Status;\r | |
2099 | EFI_BOOT_MANAGER_LOAD_OPTION *NvBootOptions;\r | |
2100 | UINTN NvBootOptionCount;\r | |
2101 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
2102 | UINTN BootOptionCount;\r | |
2103 | UINTN Index;\r | |
2104 | \r | |
2105 | //\r | |
2106 | // Optionally refresh the legacy boot option\r | |
2107 | //\r | |
2108 | if (mBmRefreshLegacyBootOption != NULL) {\r | |
2109 | mBmRefreshLegacyBootOption ();\r | |
2110 | }\r | |
2111 | \r | |
2112 | BootOptions = BmEnumerateBootOptions (&BootOptionCount);\r | |
2113 | NvBootOptions = EfiBootManagerGetLoadOptions (&NvBootOptionCount, LoadOptionTypeBoot);\r | |
2114 | \r | |
2115 | //\r | |
2116 | // Mark the boot option as added by BDS by setting OptionalData to a special GUID\r | |
2117 | //\r | |
2118 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
2119 | BootOptions[Index].OptionalData = AllocateCopyPool (sizeof (EFI_GUID), &mBmAutoCreateBootOptionGuid);\r | |
2120 | BootOptions[Index].OptionalDataSize = sizeof (EFI_GUID);\r | |
2121 | }\r | |
2122 | \r | |
2123 | //\r | |
2124 | // Remove invalid EFI boot options from NV\r | |
2125 | //\r | |
2126 | for (Index = 0; Index < NvBootOptionCount; Index++) {\r | |
2127 | if (((DevicePathType (NvBootOptions[Index].FilePath) != BBS_DEVICE_PATH) || \r | |
2128 | (DevicePathSubType (NvBootOptions[Index].FilePath) != BBS_BBS_DP)\r | |
404bd442 | 2129 | ) && BmIsAutoCreateBootOption (&NvBootOptions[Index])\r |
067ed98a RN |
2130 | ) {\r |
2131 | //\r | |
2132 | // Only check those added by BDS\r | |
2133 | // so that the boot options added by end-user or OS installer won't be deleted\r | |
2134 | //\r | |
5d3a9896 | 2135 | if (EfiBootManagerFindLoadOption (&NvBootOptions[Index], BootOptions, BootOptionCount) == (UINTN) -1) {\r |
067ed98a RN |
2136 | Status = EfiBootManagerDeleteLoadOptionVariable (NvBootOptions[Index].OptionNumber, LoadOptionTypeBoot);\r |
2137 | //\r | |
2138 | // Deleting variable with current variable implementation shouldn't fail.\r | |
2139 | //\r | |
2140 | ASSERT_EFI_ERROR (Status);\r | |
2141 | }\r | |
2142 | }\r | |
2143 | }\r | |
2144 | \r | |
2145 | //\r | |
2146 | // Add new EFI boot options to NV\r | |
2147 | //\r | |
2148 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
5d3a9896 | 2149 | if (EfiBootManagerFindLoadOption (&BootOptions[Index], NvBootOptions, NvBootOptionCount) == (UINTN) -1) {\r |
067ed98a RN |
2150 | EfiBootManagerAddLoadOptionVariable (&BootOptions[Index], (UINTN) -1);\r |
2151 | //\r | |
2152 | // Try best to add the boot options so continue upon failure.\r | |
2153 | //\r | |
2154 | }\r | |
2155 | }\r | |
2156 | \r | |
2157 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
2158 | EfiBootManagerFreeLoadOptions (NvBootOptions, NvBootOptionCount);\r | |
2159 | }\r | |
2160 | \r | |
2161 | /**\r | |
e58f1ae5 | 2162 | This function is called to get or create the boot option for the Boot Manager Menu.\r |
067ed98a RN |
2163 | \r |
2164 | The Boot Manager Menu is shown after successfully booting a boot option.\r | |
2165 | Assume the BootManagerMenuFile is in the same FV as the module links to this library.\r | |
2166 | \r | |
2167 | @param BootOption Return the boot option of the Boot Manager Menu\r | |
2168 | \r | |
2169 | @retval EFI_SUCCESS Successfully register the Boot Manager Menu.\r | |
e58f1ae5 SW |
2170 | @retval EFI_NOT_FOUND The Boot Manager Menu cannot be found.\r |
2171 | @retval others Return status of gRT->SetVariable (). BootOption still points\r | |
2172 | to the Boot Manager Menu even the Status is not EFI_SUCCESS\r | |
2173 | and EFI_NOT_FOUND.\r | |
067ed98a RN |
2174 | **/\r |
2175 | EFI_STATUS\r | |
2176 | BmRegisterBootManagerMenu (\r | |
2177 | OUT EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
2178 | )\r | |
2179 | {\r | |
2180 | EFI_STATUS Status;\r | |
2181 | CHAR16 *Description;\r | |
2182 | UINTN DescriptionLength;\r | |
2183 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
2184 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
2185 | MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FileNode;\r | |
e58f1ae5 SW |
2186 | VOID *Data;\r |
2187 | UINTN DataSize;\r | |
067ed98a | 2188 | \r |
e58f1ae5 SW |
2189 | Data = NULL;\r |
2190 | Status = GetSectionFromFv (\r | |
2191 | PcdGetPtr (PcdBootManagerMenuFile),\r | |
2192 | EFI_SECTION_PE32,\r | |
2193 | 0,\r | |
2194 | (VOID **) &Data,\r | |
2195 | &DataSize\r | |
2196 | );\r | |
2197 | if (Data != NULL) {\r | |
2198 | FreePool (Data);\r | |
2199 | }\r | |
2200 | if (EFI_ERROR (Status)) {\r | |
2201 | DEBUG ((EFI_D_WARN, "[Bds]BootManagerMenu FFS section can not be found, skip its boot option registration\n"));\r | |
2202 | return EFI_NOT_FOUND;\r | |
2203 | }\r | |
2204 | \r | |
2205 | //\r | |
2206 | // Get BootManagerMenu application's description from EFI User Interface Section.\r | |
2207 | //\r | |
067ed98a RN |
2208 | Status = GetSectionFromFv (\r |
2209 | PcdGetPtr (PcdBootManagerMenuFile),\r | |
2210 | EFI_SECTION_USER_INTERFACE,\r | |
2211 | 0,\r | |
2212 | (VOID **) &Description,\r | |
2213 | &DescriptionLength\r | |
2214 | );\r | |
2215 | if (EFI_ERROR (Status)) {\r | |
2216 | Description = NULL;\r | |
2217 | }\r | |
2218 | \r | |
2219 | EfiInitializeFwVolDevicepathNode (&FileNode, PcdGetPtr (PcdBootManagerMenuFile));\r | |
2220 | Status = gBS->HandleProtocol (\r | |
2221 | gImageHandle,\r | |
2222 | &gEfiLoadedImageProtocolGuid,\r | |
2223 | (VOID **) &LoadedImage\r | |
2224 | );\r | |
2225 | ASSERT_EFI_ERROR (Status);\r | |
2226 | DevicePath = AppendDevicePathNode (\r | |
2227 | DevicePathFromHandle (LoadedImage->DeviceHandle),\r | |
2228 | (EFI_DEVICE_PATH_PROTOCOL *) &FileNode\r | |
2229 | );\r | |
2230 | ASSERT (DevicePath != NULL);\r | |
2231 | \r | |
2232 | Status = EfiBootManagerInitializeLoadOption (\r | |
2233 | BootOption,\r | |
2234 | LoadOptionNumberUnassigned,\r | |
2235 | LoadOptionTypeBoot,\r | |
2236 | LOAD_OPTION_CATEGORY_APP | LOAD_OPTION_ACTIVE | LOAD_OPTION_HIDDEN,\r | |
2237 | (Description != NULL) ? Description : L"Boot Manager Menu",\r | |
2238 | DevicePath,\r | |
2239 | NULL,\r | |
2240 | 0\r | |
2241 | );\r | |
2242 | ASSERT_EFI_ERROR (Status);\r | |
2243 | FreePool (DevicePath);\r | |
2244 | if (Description != NULL) {\r | |
2245 | FreePool (Description);\r | |
2246 | }\r | |
2247 | \r | |
2248 | DEBUG_CODE (\r | |
2249 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
2250 | UINTN BootOptionCount;\r | |
2251 | \r | |
2252 | BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
5d3a9896 | 2253 | ASSERT (EfiBootManagerFindLoadOption (BootOption, BootOptions, BootOptionCount) == -1);\r |
067ed98a RN |
2254 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r |
2255 | );\r | |
2256 | \r | |
2257 | return EfiBootManagerAddLoadOptionVariable (BootOption, 0);\r | |
2258 | }\r | |
2259 | \r | |
2260 | /**\r | |
2261 | Return the boot option corresponding to the Boot Manager Menu.\r | |
2262 | It may automatically create one if the boot option hasn't been created yet.\r | |
e58f1ae5 | 2263 | \r |
067ed98a RN |
2264 | @param BootOption Return the Boot Manager Menu.\r |
2265 | \r | |
2266 | @retval EFI_SUCCESS The Boot Manager Menu is successfully returned.\r | |
e58f1ae5 SW |
2267 | @retval EFI_NOT_FOUND The Boot Manager Menu cannot be found.\r |
2268 | @retval others Return status of gRT->SetVariable (). BootOption still points\r | |
2269 | to the Boot Manager Menu even the Status is not EFI_SUCCESS\r | |
2270 | and EFI_NOT_FOUND.\r | |
067ed98a RN |
2271 | **/\r |
2272 | EFI_STATUS\r | |
2273 | EFIAPI\r | |
2274 | EfiBootManagerGetBootManagerMenu (\r | |
2275 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOption\r | |
2276 | )\r | |
2277 | {\r | |
2278 | EFI_STATUS Status;\r | |
2279 | UINTN BootOptionCount;\r | |
2280 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
2281 | UINTN Index;\r | |
2282 | EFI_DEVICE_PATH_PROTOCOL *Node;\r | |
2283 | EFI_HANDLE FvHandle;\r | |
2284 | \r | |
2285 | BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
2286 | \r | |
2287 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
2288 | Node = BootOptions[Index].FilePath;\r | |
2289 | Status = gBS->LocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &Node, &FvHandle);\r | |
2290 | if (!EFI_ERROR (Status)) {\r | |
2291 | if (CompareGuid (\r | |
2292 | EfiGetNameGuidFromFwVolDevicePathNode ((CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) Node),\r | |
2293 | PcdGetPtr (PcdBootManagerMenuFile)\r | |
2294 | )\r | |
2295 | ) { \r | |
2296 | Status = EfiBootManagerInitializeLoadOption (\r | |
2297 | BootOption,\r | |
2298 | BootOptions[Index].OptionNumber,\r | |
2299 | BootOptions[Index].OptionType,\r | |
2300 | BootOptions[Index].Attributes,\r | |
2301 | BootOptions[Index].Description,\r | |
2302 | BootOptions[Index].FilePath,\r | |
2303 | BootOptions[Index].OptionalData,\r | |
2304 | BootOptions[Index].OptionalDataSize\r | |
2305 | );\r | |
2306 | ASSERT_EFI_ERROR (Status);\r | |
2307 | break;\r | |
2308 | }\r | |
2309 | }\r | |
2310 | }\r | |
2311 | \r | |
2312 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
2313 | \r | |
2314 | //\r | |
2315 | // Automatically create the Boot#### for Boot Manager Menu when not found.\r | |
2316 | //\r | |
2317 | if (Index == BootOptionCount) {\r | |
2318 | return BmRegisterBootManagerMenu (BootOption);\r | |
2319 | } else {\r | |
2320 | return EFI_SUCCESS;\r | |
2321 | }\r | |
2322 | }\r | |
2323 | \r |