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5c08e117 | 1 | /** @file\r |
2 | BDS Lib functions which relate with create or process the boot option.\r | |
3 | \r | |
4 | Copyright (c) 2004 - 2008, Intel Corporation. <BR>\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "InternalBdsLib.h"\r | |
16 | \r | |
17 | BOOLEAN mEnumBootDevice = FALSE;\r | |
18 | \r | |
19 | ///\r | |
20 | /// This GUID is used for an EFI Variable that stores the front device pathes\r | |
21 | /// for a partial device path that starts with the HD node.\r | |
22 | ///\r | |
23 | EFI_GUID mHdBootVariablePrivateGuid = { 0xfab7e9e1, 0x39dd, 0x4f2b, { 0x84, 0x8, 0xe2, 0xe, 0x90, 0x6c, 0xb6, 0xde } };\r | |
24 | \r | |
25 | \r | |
26 | \r | |
27 | /**\r | |
28 | Boot the legacy system with the boot option\r | |
29 | \r | |
30 | @param Option The legacy boot option which have BBS device path\r | |
31 | \r | |
32 | @retval EFI_UNSUPPORTED There is no legacybios protocol, do not support\r | |
33 | legacy boot.\r | |
34 | @retval EFI_STATUS Return the status of LegacyBios->LegacyBoot ().\r | |
35 | \r | |
36 | **/\r | |
37 | EFI_STATUS\r | |
38 | BdsLibDoLegacyBoot (\r | |
39 | IN BDS_COMMON_OPTION *Option\r | |
40 | )\r | |
41 | {\r | |
42 | EFI_STATUS Status;\r | |
43 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
44 | \r | |
45 | Status = gBS->LocateProtocol (&gEfiLegacyBiosProtocolGuid, NULL, (VOID **) &LegacyBios);\r | |
46 | if (EFI_ERROR (Status)) {\r | |
47 | //\r | |
48 | // If no LegacyBios protocol we do not support legacy boot\r | |
49 | //\r | |
50 | return EFI_UNSUPPORTED;\r | |
51 | }\r | |
52 | //\r | |
53 | // Notes: if we separate the int 19, then we don't need to refresh BBS\r | |
54 | //\r | |
55 | BdsRefreshBbsTableForBoot (Option);\r | |
56 | \r | |
57 | //\r | |
58 | // Write boot to OS performance data to a file\r | |
59 | //\r | |
60 | PERF_CODE (\r | |
61 | WriteBootToOsPerformanceData ();\r | |
62 | );\r | |
63 | \r | |
64 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Legacy Boot: %S\n", Option->Description));\r | |
65 | return LegacyBios->LegacyBoot (\r | |
66 | LegacyBios,\r | |
67 | (BBS_BBS_DEVICE_PATH *) Option->DevicePath,\r | |
68 | Option->LoadOptionsSize,\r | |
69 | Option->LoadOptions\r | |
70 | );\r | |
71 | }\r | |
72 | \r | |
3d7decbc | 73 | /**\r |
74 | Internal function to check if the input boot option is a valid EFI NV Boot####.\r | |
75 | \r | |
76 | @param OptionToCheck Boot option to be checked.\r | |
77 | \r | |
78 | @retval TRUE This boot option matches a valid EFI NV Boot####.\r | |
79 | @retval FALSE If not.\r | |
80 | \r | |
81 | **/\r | |
82 | \r | |
83 | BOOLEAN\r | |
84 | IsBootOptionValidNVVarialbe (\r | |
85 | IN BDS_COMMON_OPTION *OptionToCheck\r | |
86 | )\r | |
87 | {\r | |
88 | LIST_ENTRY TempList;\r | |
89 | BDS_COMMON_OPTION *BootOption;\r | |
90 | BOOLEAN Valid;\r | |
91 | CHAR16 OptionName[20];\r | |
92 | \r | |
93 | Valid = FALSE;\r | |
94 | \r | |
95 | InitializeListHead (&TempList);\r | |
96 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", OptionToCheck->BootCurrent);\r | |
5c08e117 | 97 | \r |
3d7decbc | 98 | BootOption = BdsLibVariableToOption (&TempList, OptionName);\r |
99 | if (BootOption == NULL) {\r | |
100 | return FALSE;\r | |
101 | }\r | |
102 | \r | |
103 | //\r | |
104 | // If the Boot Option Number and Device Path matches, OptionToCheck matches a \r | |
105 | // valid EFI NV Boot####.\r | |
106 | //\r | |
107 | if ((OptionToCheck->BootCurrent == BootOption->BootCurrent) &&\r | |
108 | (CompareMem (OptionToCheck->DevicePath, BootOption->DevicePath, GetDevicePathSize (OptionToCheck->DevicePath)) == 0))\r | |
109 | {\r | |
110 | Valid = TRUE;\r | |
111 | }\r | |
112 | \r | |
113 | FreePool (BootOption);\r | |
114 | \r | |
115 | return Valid;\r | |
116 | }\r | |
5c08e117 | 117 | /**\r |
118 | Process the boot option follow the UEFI specification and\r | |
119 | special treat the legacy boot option with BBS_DEVICE_PATH.\r | |
120 | \r | |
121 | @param Option The boot option need to be processed\r | |
122 | @param DevicePath The device path which describe where to load the\r | |
123 | boot image or the legacy BBS device path to boot\r | |
124 | the legacy OS\r | |
125 | @param ExitDataSize The size of exit data.\r | |
126 | @param ExitData Data returned when Boot image failed.\r | |
127 | \r | |
128 | @retval EFI_SUCCESS Boot from the input boot option successfully.\r | |
129 | @retval EFI_NOT_FOUND If the Device Path is not found in the system\r | |
130 | \r | |
131 | **/\r | |
132 | EFI_STATUS\r | |
133 | EFIAPI\r | |
134 | BdsLibBootViaBootOption (\r | |
135 | IN BDS_COMMON_OPTION *Option,\r | |
136 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
137 | OUT UINTN *ExitDataSize,\r | |
138 | OUT CHAR16 **ExitData OPTIONAL\r | |
139 | )\r | |
140 | {\r | |
141 | EFI_STATUS Status;\r | |
142 | EFI_HANDLE Handle;\r | |
143 | EFI_HANDLE ImageHandle;\r | |
144 | EFI_DEVICE_PATH_PROTOCOL *FilePath;\r | |
145 | EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;\r | |
146 | EFI_DEVICE_PATH_PROTOCOL *WorkingDevicePath;\r | |
147 | EFI_ACPI_S3_SAVE_PROTOCOL *AcpiS3Save;\r | |
148 | LIST_ENTRY TempBootLists;\r | |
07d97279 | 149 | EFI_SECURITY_ARCH_PROTOCOL *SecurityProtocol;\r |
5c08e117 | 150 | \r |
151 | //\r | |
152 | // Record the performance data for End of BDS\r | |
153 | //\r | |
6055758f | 154 | PERF_END (0, "BDS", NULL, 0);\r |
5c08e117 | 155 | \r |
156 | *ExitDataSize = 0;\r | |
157 | *ExitData = NULL;\r | |
158 | \r | |
159 | //\r | |
160 | // Notes: put EFI64 ROM Shadow Solution\r | |
161 | //\r | |
162 | EFI64_SHADOW_ALL_LEGACY_ROM ();\r | |
163 | \r | |
164 | //\r | |
165 | // Notes: this code can be remove after the s3 script table\r | |
166 | // hook on the event EVT_SIGNAL_READY_TO_BOOT or\r | |
167 | // EVT_SIGNAL_LEGACY_BOOT\r | |
168 | //\r | |
169 | Status = gBS->LocateProtocol (&gEfiAcpiS3SaveProtocolGuid, NULL, (VOID **) &AcpiS3Save);\r | |
170 | if (!EFI_ERROR (Status)) {\r | |
171 | AcpiS3Save->S3Save (AcpiS3Save, NULL);\r | |
172 | }\r | |
173 | //\r | |
174 | // If it's Device Path that starts with a hard drive path, append it with the front part to compose a\r | |
175 | // full device path\r | |
176 | //\r | |
177 | WorkingDevicePath = NULL;\r | |
178 | if ((DevicePathType (DevicePath) == MEDIA_DEVICE_PATH) &&\r | |
179 | (DevicePathSubType (DevicePath) == MEDIA_HARDDRIVE_DP)) {\r | |
180 | WorkingDevicePath = BdsExpandPartitionPartialDevicePathToFull (\r | |
181 | (HARDDRIVE_DEVICE_PATH *)DevicePath\r | |
182 | );\r | |
183 | if (WorkingDevicePath != NULL) {\r | |
184 | DevicePath = WorkingDevicePath;\r | |
185 | }\r | |
186 | }\r | |
187 | //\r | |
188 | // Signal the EVT_SIGNAL_READY_TO_BOOT event\r | |
189 | //\r | |
190 | EfiSignalEventReadyToBoot();\r | |
191 | \r | |
192 | \r | |
193 | //\r | |
194 | // Set Boot Current\r | |
195 | //\r | |
3d7decbc | 196 | if (IsBootOptionValidNVVarialbe (Option)) {\r |
197 | //\r | |
198 | // For a temporary boot (i.e. a boot by selected a EFI Shell using "Boot From File"), Boot Current is actually not valid.\r | |
199 | // In this case, "BootCurrent" is not created.\r | |
200 | // Only create the BootCurrent variable when it points to a valid Boot#### variable.\r | |
201 | //\r | |
202 | gRT->SetVariable (\r | |
203 | L"BootCurrent",\r | |
204 | &gEfiGlobalVariableGuid,\r | |
205 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
206 | sizeof (UINT16),\r | |
207 | &Option->BootCurrent\r | |
208 | );\r | |
209 | }\r | |
5c08e117 | 210 | \r |
211 | ASSERT (Option->DevicePath != NULL);\r | |
212 | if ((DevicePathType (Option->DevicePath) == BBS_DEVICE_PATH) &&\r | |
213 | (DevicePathSubType (Option->DevicePath) == BBS_BBS_DP)\r | |
214 | ) {\r | |
215 | //\r | |
216 | // Check to see if we should legacy BOOT. If yes then do the legacy boot\r | |
217 | //\r | |
218 | return BdsLibDoLegacyBoot (Option);\r | |
219 | }\r | |
220 | \r | |
221 | //\r | |
222 | // If the boot option point to Internal FV shell, make sure it is valid\r | |
223 | //\r | |
224 | Status = BdsLibUpdateFvFileDevicePath (&DevicePath, &gEfiShellFileGuid);\r | |
225 | if (!EFI_ERROR(Status)) {\r | |
226 | if (Option->DevicePath != NULL) {\r | |
227 | FreePool(Option->DevicePath);\r | |
228 | }\r | |
229 | Option->DevicePath = AllocateZeroPool (GetDevicePathSize (DevicePath));\r | |
230 | ASSERT(Option->DevicePath != NULL);\r | |
231 | CopyMem (Option->DevicePath, DevicePath, GetDevicePathSize (DevicePath));\r | |
232 | //\r | |
233 | // Update the shell boot option\r | |
234 | //\r | |
235 | InitializeListHead (&TempBootLists);\r | |
236 | BdsLibRegisterNewOption (&TempBootLists, DevicePath, L"EFI Internal Shell", L"BootOrder");\r | |
237 | \r | |
238 | //\r | |
239 | // free the temporary device path created by BdsLibUpdateFvFileDevicePath()\r | |
240 | //\r | |
241 | FreePool (DevicePath); \r | |
242 | DevicePath = Option->DevicePath;\r | |
243 | }\r | |
244 | \r | |
07d97279 LG |
245 | //\r |
246 | // Measure GPT Table by SAP protocol.\r | |
247 | //\r | |
248 | Status = gBS->LocateProtocol (\r | |
249 | &gEfiSecurityArchProtocolGuid,\r | |
250 | NULL,\r | |
454b8ca8 | 251 | (VOID**) &SecurityProtocol\r |
07d97279 LG |
252 | );\r |
253 | if (!EFI_ERROR (Status)) {\r | |
254 | Status = SecurityProtocol->FileAuthenticationState (SecurityProtocol, 0, DevicePath);\r | |
255 | }\r | |
256 | \r | |
5c08e117 | 257 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Booting %S\n", Option->Description));\r |
258 | \r | |
259 | Status = gBS->LoadImage (\r | |
260 | TRUE,\r | |
261 | mBdsImageHandle,\r | |
262 | DevicePath,\r | |
263 | NULL,\r | |
264 | 0,\r | |
265 | &ImageHandle\r | |
266 | );\r | |
267 | \r | |
268 | //\r | |
269 | // If we didn't find an image directly, we need to try as if it is a removable device boot opotion\r | |
270 | // and load the image according to the default boot behavior for removable device.\r | |
271 | //\r | |
272 | if (EFI_ERROR (Status)) {\r | |
273 | //\r | |
274 | // check if there is a bootable removable media could be found in this device path ,\r | |
275 | // and get the bootable media handle\r | |
276 | //\r | |
277 | Handle = BdsLibGetBootableHandle(DevicePath);\r | |
278 | if (Handle == NULL) {\r | |
279 | goto Done;\r | |
280 | }\r | |
281 | //\r | |
282 | // Load the default boot file \EFI\BOOT\boot{machinename}.EFI from removable Media\r | |
283 | // machinename is ia32, ia64, x64, ...\r | |
284 | //\r | |
c62dbf31 | 285 | FilePath = FileDevicePath (Handle, EFI_REMOVABLE_MEDIA_FILE_NAME);\r |
5c08e117 | 286 | if (FilePath != NULL) {\r |
287 | Status = gBS->LoadImage (\r | |
288 | TRUE,\r | |
289 | mBdsImageHandle,\r | |
290 | FilePath,\r | |
291 | NULL,\r | |
292 | 0,\r | |
293 | &ImageHandle\r | |
294 | );\r | |
295 | if (EFI_ERROR (Status)) {\r | |
296 | //\r | |
297 | // The DevicePath failed, and it's not a valid\r | |
298 | // removable media device.\r | |
299 | //\r | |
300 | goto Done;\r | |
301 | }\r | |
302 | }\r | |
303 | }\r | |
304 | \r | |
305 | if (EFI_ERROR (Status)) {\r | |
306 | //\r | |
307 | // It there is any error from the Boot attempt exit now.\r | |
308 | //\r | |
309 | goto Done;\r | |
310 | }\r | |
311 | //\r | |
312 | // Provide the image with it's load options\r | |
313 | //\r | |
314 | Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &ImageInfo);\r | |
315 | ASSERT_EFI_ERROR (Status);\r | |
316 | \r | |
317 | if (Option->LoadOptionsSize != 0) {\r | |
318 | ImageInfo->LoadOptionsSize = Option->LoadOptionsSize;\r | |
319 | ImageInfo->LoadOptions = Option->LoadOptions;\r | |
320 | }\r | |
321 | //\r | |
322 | // Before calling the image, enable the Watchdog Timer for\r | |
323 | // the 5 Minute period\r | |
324 | //\r | |
325 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
326 | \r | |
327 | Status = gBS->StartImage (ImageHandle, ExitDataSize, ExitData);\r | |
328 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Image Return Status = %r\n", Status));\r | |
329 | \r | |
330 | //\r | |
331 | // Clear the Watchdog Timer after the image returns\r | |
332 | //\r | |
333 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
334 | \r | |
335 | Done:\r | |
336 | //\r | |
337 | // Clear Boot Current\r | |
338 | //\r | |
339 | gRT->SetVariable (\r | |
340 | L"BootCurrent",\r | |
341 | &gEfiGlobalVariableGuid,\r | |
342 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
343 | 0,\r | |
344 | &Option->BootCurrent\r | |
345 | );\r | |
346 | \r | |
347 | return Status;\r | |
348 | }\r | |
349 | \r | |
350 | \r | |
351 | /**\r | |
352 | Expand a device path that starts with a hard drive media device path node to be a\r | |
353 | full device path that includes the full hardware path to the device. We need\r | |
354 | to do this so it can be booted. As an optimization the front match (the part point\r | |
355 | to the partition node. E.g. ACPI() /PCI()/ATA()/Partition() ) is saved in a variable\r | |
356 | so a connect all is not required on every boot. All successful history device path\r | |
357 | which point to partition node (the front part) will be saved.\r | |
358 | \r | |
359 | @param HardDriveDevicePath EFI Device Path to boot, if it starts with a hard\r | |
360 | drive media device path.\r | |
361 | @return A Pointer to the full device path or NULL if a valid Hard Drive devic path\r | |
362 | cannot be found.\r | |
363 | \r | |
364 | **/\r | |
365 | EFI_DEVICE_PATH_PROTOCOL *\r | |
366 | EFIAPI\r | |
367 | BdsExpandPartitionPartialDevicePathToFull (\r | |
368 | IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath\r | |
369 | )\r | |
370 | {\r | |
371 | EFI_STATUS Status;\r | |
372 | UINTN BlockIoHandleCount;\r | |
373 | EFI_HANDLE *BlockIoBuffer;\r | |
374 | EFI_DEVICE_PATH_PROTOCOL *FullDevicePath;\r | |
375 | EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath;\r | |
376 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
377 | UINTN Index;\r | |
378 | UINTN InstanceNum;\r | |
379 | EFI_DEVICE_PATH_PROTOCOL *CachedDevicePath;\r | |
380 | EFI_DEVICE_PATH_PROTOCOL *TempNewDevicePath;\r | |
381 | UINTN CachedDevicePathSize;\r | |
382 | BOOLEAN DeviceExist;\r | |
383 | BOOLEAN NeedAdjust;\r | |
384 | EFI_DEVICE_PATH_PROTOCOL *Instance;\r | |
385 | UINTN Size;\r | |
386 | \r | |
387 | FullDevicePath = NULL;\r | |
388 | //\r | |
389 | // Check if there is prestore 'HDDP' variable.\r | |
390 | // If exist, search the front path which point to partition node in the variable instants.\r | |
391 | // If fail to find or 'HDDP' not exist, reconnect all and search in all system\r | |
392 | //\r | |
393 | CachedDevicePath = BdsLibGetVariableAndSize (\r | |
394 | L"HDDP",\r | |
395 | &mHdBootVariablePrivateGuid,\r | |
396 | &CachedDevicePathSize\r | |
397 | );\r | |
398 | \r | |
399 | if (CachedDevicePath != NULL) {\r | |
400 | TempNewDevicePath = CachedDevicePath;\r | |
401 | DeviceExist = FALSE;\r | |
402 | NeedAdjust = FALSE;\r | |
403 | do {\r | |
404 | //\r | |
405 | // Check every instance of the variable\r | |
406 | // First, check whether the instance contain the partition node, which is needed for distinguishing multi\r | |
407 | // partial partition boot option. Second, check whether the instance could be connected.\r | |
408 | //\r | |
409 | Instance = GetNextDevicePathInstance (&TempNewDevicePath, &Size);\r | |
410 | if (MatchPartitionDevicePathNode (Instance, HardDriveDevicePath)) {\r | |
411 | //\r | |
412 | // Connect the device path instance, the device path point to hard drive media device path node\r | |
413 | // e.g. ACPI() /PCI()/ATA()/Partition()\r | |
414 | //\r | |
415 | Status = BdsLibConnectDevicePath (Instance);\r | |
416 | if (!EFI_ERROR (Status)) {\r | |
417 | DeviceExist = TRUE;\r | |
418 | break;\r | |
419 | }\r | |
420 | }\r | |
421 | //\r | |
422 | // Come here means the first instance is not matched\r | |
423 | //\r | |
424 | NeedAdjust = TRUE;\r | |
425 | FreePool(Instance);\r | |
426 | } while (TempNewDevicePath != NULL);\r | |
427 | \r | |
428 | if (DeviceExist) {\r | |
429 | //\r | |
430 | // Find the matched device path.\r | |
431 | // Append the file path information from the boot option and return the fully expanded device path.\r | |
432 | //\r | |
433 | DevicePath = NextDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *) HardDriveDevicePath);\r | |
434 | FullDevicePath = AppendDevicePath (Instance, DevicePath);\r | |
435 | \r | |
436 | //\r | |
437 | // Adjust the 'HDDP' instances sequence if the matched one is not first one.\r | |
438 | //\r | |
439 | if (NeedAdjust) {\r | |
440 | //\r | |
441 | // First delete the matched instance.\r | |
442 | //\r | |
443 | TempNewDevicePath = CachedDevicePath;\r | |
444 | CachedDevicePath = BdsLibDelPartMatchInstance (CachedDevicePath, Instance );\r | |
445 | FreePool (TempNewDevicePath);\r | |
446 | \r | |
447 | //\r | |
448 | // Second, append the remaining path after the matched instance\r | |
449 | //\r | |
450 | TempNewDevicePath = CachedDevicePath;\r | |
451 | CachedDevicePath = AppendDevicePathInstance (Instance, CachedDevicePath );\r | |
452 | FreePool (TempNewDevicePath);\r | |
453 | //\r | |
454 | // Save the matching Device Path so we don't need to do a connect all next time\r | |
455 | //\r | |
456 | Status = gRT->SetVariable (\r | |
457 | L"HDDP",\r | |
458 | &mHdBootVariablePrivateGuid,\r | |
459 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
460 | GetDevicePathSize (CachedDevicePath),\r | |
461 | CachedDevicePath\r | |
462 | );\r | |
463 | }\r | |
464 | \r | |
465 | FreePool (Instance);\r | |
466 | FreePool (CachedDevicePath);\r | |
467 | return FullDevicePath;\r | |
468 | }\r | |
469 | }\r | |
470 | \r | |
471 | //\r | |
472 | // If we get here we fail to find or 'HDDP' not exist, and now we need\r | |
473 | // to search all devices in the system for a matched partition\r | |
474 | //\r | |
475 | BdsLibConnectAllDriversToAllControllers ();\r | |
476 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiBlockIoProtocolGuid, NULL, &BlockIoHandleCount, &BlockIoBuffer);\r | |
477 | if (EFI_ERROR (Status) || BlockIoHandleCount == 0 || BlockIoBuffer == NULL) {\r | |
478 | //\r | |
479 | // If there was an error or there are no device handles that support\r | |
480 | // the BLOCK_IO Protocol, then return.\r | |
481 | //\r | |
482 | return NULL;\r | |
483 | }\r | |
484 | //\r | |
485 | // Loop through all the device handles that support the BLOCK_IO Protocol\r | |
486 | //\r | |
487 | for (Index = 0; Index < BlockIoHandleCount; Index++) {\r | |
488 | \r | |
489 | Status = gBS->HandleProtocol (BlockIoBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID *) &BlockIoDevicePath);\r | |
490 | if (EFI_ERROR (Status) || BlockIoDevicePath == NULL) {\r | |
491 | continue;\r | |
492 | }\r | |
493 | \r | |
494 | if (MatchPartitionDevicePathNode (BlockIoDevicePath, HardDriveDevicePath)) {\r | |
495 | //\r | |
496 | // Find the matched partition device path\r | |
497 | //\r | |
498 | DevicePath = NextDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *) HardDriveDevicePath);\r | |
499 | FullDevicePath = AppendDevicePath (BlockIoDevicePath, DevicePath);\r | |
500 | \r | |
501 | //\r | |
502 | // Save the matched partition device path in 'HDDP' variable\r | |
503 | //\r | |
504 | if (CachedDevicePath != NULL) {\r | |
505 | //\r | |
506 | // Save the matched partition device path as first instance of 'HDDP' variable\r | |
507 | //\r | |
508 | if (BdsLibMatchDevicePaths (CachedDevicePath, BlockIoDevicePath)) {\r | |
509 | TempNewDevicePath = CachedDevicePath;\r | |
510 | CachedDevicePath = BdsLibDelPartMatchInstance (CachedDevicePath, BlockIoDevicePath);\r | |
511 | FreePool(TempNewDevicePath);\r | |
512 | \r | |
513 | TempNewDevicePath = CachedDevicePath;\r | |
514 | CachedDevicePath = AppendDevicePathInstance (BlockIoDevicePath, CachedDevicePath);\r | |
515 | FreePool(TempNewDevicePath);\r | |
516 | } else {\r | |
517 | TempNewDevicePath = CachedDevicePath;\r | |
518 | CachedDevicePath = AppendDevicePathInstance (BlockIoDevicePath, CachedDevicePath);\r | |
519 | FreePool(TempNewDevicePath);\r | |
520 | }\r | |
521 | //\r | |
522 | // Here limit the device path instance number to 12, which is max number for a system support 3 IDE controller\r | |
523 | // If the user try to boot many OS in different HDs or partitions, in theory, the 'HDDP' variable maybe become larger and larger.\r | |
524 | //\r | |
525 | InstanceNum = 0;\r | |
526 | ASSERT (CachedDevicePath != NULL);\r | |
527 | TempNewDevicePath = CachedDevicePath;\r | |
528 | while (!IsDevicePathEnd (TempNewDevicePath)) {\r | |
529 | TempNewDevicePath = NextDevicePathNode (TempNewDevicePath);\r | |
530 | //\r | |
531 | // Parse one instance\r | |
532 | //\r | |
533 | while (!IsDevicePathEndType (TempNewDevicePath)) {\r | |
534 | TempNewDevicePath = NextDevicePathNode (TempNewDevicePath);\r | |
535 | }\r | |
536 | InstanceNum++;\r | |
537 | //\r | |
538 | // If the CachedDevicePath variable contain too much instance, only remain 12 instances.\r | |
539 | //\r | |
540 | if (InstanceNum >= 12) {\r | |
541 | SetDevicePathEndNode (TempNewDevicePath);\r | |
542 | break;\r | |
543 | }\r | |
544 | }\r | |
545 | } else {\r | |
546 | CachedDevicePath = DuplicateDevicePath (BlockIoDevicePath);\r | |
547 | }\r | |
548 | \r | |
549 | //\r | |
550 | // Save the matching Device Path so we don't need to do a connect all next time\r | |
551 | //\r | |
552 | Status = gRT->SetVariable (\r | |
553 | L"HDDP",\r | |
554 | &mHdBootVariablePrivateGuid,\r | |
555 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
556 | GetDevicePathSize (CachedDevicePath),\r | |
557 | CachedDevicePath\r | |
558 | );\r | |
559 | \r | |
560 | break;\r | |
561 | }\r | |
562 | }\r | |
563 | \r | |
564 | FreePool (CachedDevicePath);\r | |
565 | if (BlockIoBuffer != NULL) {\r | |
566 | FreePool (BlockIoBuffer);\r | |
567 | }\r | |
568 | return FullDevicePath;\r | |
569 | }\r | |
570 | \r | |
571 | /**\r | |
572 | Check whether there is a instance in BlockIoDevicePath, which contain multi device path\r | |
573 | instances, has the same partition node with HardDriveDevicePath device path\r | |
574 | \r | |
575 | @param BlockIoDevicePath Multi device path instances which need to check\r | |
576 | @param HardDriveDevicePath A device path which starts with a hard drive media\r | |
577 | device path.\r | |
578 | \r | |
579 | @retval TRUE There is a matched device path instance.\r | |
580 | @retval FALSE There is no matched device path instance.\r | |
581 | \r | |
582 | **/\r | |
583 | BOOLEAN\r | |
584 | EFIAPI\r | |
585 | MatchPartitionDevicePathNode (\r | |
586 | IN EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath,\r | |
587 | IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath\r | |
588 | )\r | |
589 | {\r | |
590 | HARDDRIVE_DEVICE_PATH *TmpHdPath;\r | |
591 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
592 | BOOLEAN Match;\r | |
593 | EFI_DEVICE_PATH_PROTOCOL *BlockIoHdDevicePathNode;\r | |
594 | \r | |
595 | if ((BlockIoDevicePath == NULL) || (HardDriveDevicePath == NULL)) {\r | |
596 | return FALSE;\r | |
597 | }\r | |
598 | \r | |
599 | //\r | |
600 | // Make PreviousDevicePath == the device path node before the end node\r | |
601 | //\r | |
602 | DevicePath = BlockIoDevicePath;\r | |
603 | BlockIoHdDevicePathNode = NULL;\r | |
604 | \r | |
605 | //\r | |
606 | // find the partition device path node\r | |
607 | //\r | |
608 | while (!IsDevicePathEnd (DevicePath)) {\r | |
609 | if ((DevicePathType (DevicePath) == MEDIA_DEVICE_PATH) &&\r | |
610 | (DevicePathSubType (DevicePath) == MEDIA_HARDDRIVE_DP)\r | |
611 | ) {\r | |
612 | BlockIoHdDevicePathNode = DevicePath;\r | |
613 | break;\r | |
614 | }\r | |
615 | \r | |
616 | DevicePath = NextDevicePathNode (DevicePath);\r | |
617 | }\r | |
618 | \r | |
619 | if (BlockIoHdDevicePathNode == NULL) {\r | |
620 | return FALSE;\r | |
621 | }\r | |
622 | //\r | |
623 | // See if the harddrive device path in blockio matches the orig Hard Drive Node\r | |
624 | //\r | |
625 | TmpHdPath = (HARDDRIVE_DEVICE_PATH *) BlockIoHdDevicePathNode;\r | |
626 | Match = FALSE;\r | |
627 | \r | |
628 | //\r | |
629 | // Check for the match\r | |
630 | //\r | |
631 | if ((TmpHdPath->MBRType == HardDriveDevicePath->MBRType) &&\r | |
632 | (TmpHdPath->SignatureType == HardDriveDevicePath->SignatureType)) {\r | |
633 | switch (TmpHdPath->SignatureType) {\r | |
634 | case SIGNATURE_TYPE_GUID:\r | |
635 | Match = CompareGuid ((EFI_GUID *)TmpHdPath->Signature, (EFI_GUID *)HardDriveDevicePath->Signature);\r | |
636 | break;\r | |
637 | case SIGNATURE_TYPE_MBR:\r | |
638 | Match = (BOOLEAN)(*((UINT32 *)(&(TmpHdPath->Signature[0]))) == ReadUnaligned32((UINT32 *)(&(HardDriveDevicePath->Signature[0]))));\r | |
639 | break;\r | |
640 | default:\r | |
641 | Match = FALSE;\r | |
642 | break;\r | |
643 | }\r | |
644 | }\r | |
645 | \r | |
646 | return Match;\r | |
647 | }\r | |
648 | \r | |
649 | /**\r | |
650 | Delete the boot option associated with the handle passed in.\r | |
651 | \r | |
652 | @param Handle The handle which present the device path to create\r | |
653 | boot option\r | |
654 | \r | |
655 | @retval EFI_SUCCESS Delete the boot option success\r | |
656 | @retval EFI_NOT_FOUND If the Device Path is not found in the system\r | |
657 | @retval EFI_OUT_OF_RESOURCES Lack of memory resource\r | |
658 | @retval Other Error return value from SetVariable()\r | |
659 | \r | |
660 | **/\r | |
661 | EFI_STATUS\r | |
662 | BdsLibDeleteOptionFromHandle (\r | |
663 | IN EFI_HANDLE Handle\r | |
664 | )\r | |
665 | {\r | |
666 | UINT16 *BootOrder;\r | |
667 | UINT8 *BootOptionVar;\r | |
668 | UINTN BootOrderSize;\r | |
669 | UINTN BootOptionSize;\r | |
670 | EFI_STATUS Status;\r | |
671 | UINTN Index;\r | |
672 | UINT16 BootOption[BOOT_OPTION_MAX_CHAR];\r | |
673 | UINTN DevicePathSize;\r | |
674 | UINTN OptionDevicePathSize;\r | |
675 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
676 | EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;\r | |
677 | UINT8 *TempPtr;\r | |
678 | \r | |
679 | Status = EFI_SUCCESS;\r | |
680 | BootOrder = NULL;\r | |
681 | BootOrderSize = 0;\r | |
682 | \r | |
683 | //\r | |
684 | // Check "BootOrder" variable, if no, means there is no any boot order.\r | |
685 | //\r | |
686 | BootOrder = BdsLibGetVariableAndSize (\r | |
687 | L"BootOrder",\r | |
688 | &gEfiGlobalVariableGuid,\r | |
689 | &BootOrderSize\r | |
690 | );\r | |
691 | if (BootOrder == NULL) {\r | |
692 | return EFI_NOT_FOUND;\r | |
693 | }\r | |
694 | \r | |
695 | //\r | |
696 | // Convert device handle to device path protocol instance\r | |
697 | //\r | |
698 | DevicePath = DevicePathFromHandle (Handle);\r | |
699 | if (DevicePath == NULL) {\r | |
700 | return EFI_NOT_FOUND;\r | |
701 | }\r | |
702 | DevicePathSize = GetDevicePathSize (DevicePath);\r | |
703 | \r | |
704 | //\r | |
705 | // Loop all boot order variable and find the matching device path\r | |
706 | //\r | |
707 | Index = 0;\r | |
708 | while (Index < BootOrderSize / sizeof (UINT16)) {\r | |
709 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r | |
710 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
711 | BootOption,\r | |
712 | &gEfiGlobalVariableGuid,\r | |
713 | &BootOptionSize\r | |
714 | );\r | |
715 | \r | |
716 | if (BootOptionVar == NULL) {\r | |
717 | FreePool (BootOrder);\r | |
718 | return EFI_OUT_OF_RESOURCES;\r | |
719 | }\r | |
720 | \r | |
721 | TempPtr = BootOptionVar;\r | |
722 | TempPtr += sizeof (UINT32) + sizeof (UINT16);\r | |
723 | TempPtr += StrSize ((CHAR16 *) TempPtr);\r | |
724 | OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;\r | |
725 | OptionDevicePathSize = GetDevicePathSize (OptionDevicePath);\r | |
726 | \r | |
727 | //\r | |
728 | // Check whether the device path match\r | |
729 | //\r | |
730 | if ((OptionDevicePathSize == DevicePathSize) &&\r | |
731 | (CompareMem (DevicePath, OptionDevicePath, DevicePathSize) == 0)) {\r | |
732 | BdsDeleteBootOption (BootOrder[Index], BootOrder, &BootOrderSize);\r | |
733 | FreePool (BootOptionVar);\r | |
734 | break;\r | |
735 | }\r | |
736 | \r | |
737 | FreePool (BootOptionVar);\r | |
738 | Index++;\r | |
739 | }\r | |
740 | \r | |
741 | //\r | |
742 | // Adjust number of boot option for "BootOrder" variable.\r | |
743 | //\r | |
744 | Status = gRT->SetVariable (\r | |
745 | L"BootOrder",\r | |
746 | &gEfiGlobalVariableGuid,\r | |
747 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
748 | BootOrderSize,\r | |
749 | BootOrder\r | |
750 | );\r | |
751 | \r | |
752 | FreePool (BootOrder);\r | |
753 | \r | |
754 | return Status;\r | |
755 | }\r | |
756 | \r | |
757 | \r | |
758 | /**\r | |
759 | Delete all invalid EFI boot options. The probable invalid boot option could\r | |
760 | be Removable media or Network boot device.\r | |
761 | \r | |
762 | @retval EFI_SUCCESS Delete all invalid boot option success\r | |
763 | @retval EFI_NOT_FOUND Variable "BootOrder" is not found\r | |
764 | @retval EFI_OUT_OF_RESOURCES Lack of memory resource\r | |
765 | @retval Other Error return value from SetVariable()\r | |
766 | \r | |
767 | **/\r | |
768 | EFI_STATUS\r | |
769 | BdsDeleteAllInvalidEfiBootOption (\r | |
770 | VOID\r | |
771 | )\r | |
772 | {\r | |
773 | UINT16 *BootOrder;\r | |
774 | UINT8 *BootOptionVar;\r | |
775 | UINTN BootOrderSize;\r | |
776 | UINTN BootOptionSize;\r | |
777 | EFI_STATUS Status;\r | |
778 | UINTN Index;\r | |
779 | UINTN Index2;\r | |
780 | UINT16 BootOption[BOOT_OPTION_MAX_CHAR];\r | |
781 | EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;\r | |
782 | UINT8 *TempPtr;\r | |
783 | \r | |
784 | Status = EFI_SUCCESS;\r | |
785 | BootOrder = NULL;\r | |
786 | BootOrderSize = 0;\r | |
787 | \r | |
788 | //\r | |
789 | // Check "BootOrder" variable firstly, this variable hold the number of boot options\r | |
790 | //\r | |
791 | BootOrder = BdsLibGetVariableAndSize (\r | |
792 | L"BootOrder",\r | |
793 | &gEfiGlobalVariableGuid,\r | |
794 | &BootOrderSize\r | |
795 | );\r | |
796 | if (NULL == BootOrder) {\r | |
797 | return EFI_NOT_FOUND;\r | |
798 | }\r | |
799 | \r | |
800 | Index = 0;\r | |
801 | while (Index < BootOrderSize / sizeof (UINT16)) {\r | |
802 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r | |
803 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
804 | BootOption,\r | |
805 | &gEfiGlobalVariableGuid,\r | |
806 | &BootOptionSize\r | |
807 | );\r | |
808 | if (NULL == BootOptionVar) {\r | |
809 | FreePool (BootOrder);\r | |
810 | return EFI_OUT_OF_RESOURCES;\r | |
811 | }\r | |
812 | \r | |
813 | TempPtr = BootOptionVar;\r | |
814 | TempPtr += sizeof (UINT32) + sizeof (UINT16);\r | |
815 | TempPtr += StrSize ((CHAR16 *) TempPtr);\r | |
816 | OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;\r | |
817 | \r | |
818 | //\r | |
819 | // Skip legacy boot option (BBS boot device)\r | |
820 | //\r | |
821 | if ((DevicePathType (OptionDevicePath) == BBS_DEVICE_PATH) &&\r | |
822 | (DevicePathSubType (OptionDevicePath) == BBS_BBS_DP)) {\r | |
823 | FreePool (BootOptionVar);\r | |
824 | Index++;\r | |
825 | continue;\r | |
826 | }\r | |
827 | \r | |
828 | if (!BdsLibIsValidEFIBootOptDevicePath (OptionDevicePath, FALSE)) {\r | |
829 | //\r | |
830 | // Delete this invalid boot option "Boot####"\r | |
831 | //\r | |
832 | Status = gRT->SetVariable (\r | |
833 | BootOption,\r | |
834 | &gEfiGlobalVariableGuid,\r | |
835 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
836 | 0,\r | |
837 | NULL\r | |
838 | );\r | |
839 | //\r | |
840 | // Mark this boot option in boot order as deleted\r | |
841 | //\r | |
842 | BootOrder[Index] = 0xffff;\r | |
843 | }\r | |
844 | \r | |
845 | FreePool (BootOptionVar);\r | |
846 | Index++;\r | |
847 | }\r | |
848 | \r | |
849 | //\r | |
850 | // Adjust boot order array\r | |
851 | //\r | |
852 | Index2 = 0;\r | |
853 | for (Index = 0; Index < BootOrderSize / sizeof (UINT16); Index++) {\r | |
854 | if (BootOrder[Index] != 0xffff) {\r | |
855 | BootOrder[Index2] = BootOrder[Index];\r | |
856 | Index2 ++;\r | |
857 | }\r | |
858 | }\r | |
859 | Status = gRT->SetVariable (\r | |
860 | L"BootOrder",\r | |
861 | &gEfiGlobalVariableGuid,\r | |
862 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
863 | Index2 * sizeof (UINT16),\r | |
864 | BootOrder\r | |
865 | );\r | |
866 | \r | |
867 | FreePool (BootOrder);\r | |
868 | \r | |
869 | return Status;\r | |
870 | }\r | |
871 | \r | |
872 | \r | |
873 | /**\r | |
874 | This function will enumerate all possible boot device in the system,\r | |
875 | it will only execute once of every boot.\r | |
876 | \r | |
877 | @param BdsBootOptionList The header of the link list which indexed all\r | |
878 | current boot options\r | |
879 | \r | |
880 | @retval EFI_SUCCESS Finished all the boot device enumerate and create\r | |
881 | the boot option base on that boot device\r | |
882 | \r | |
883 | **/\r | |
884 | EFI_STATUS\r | |
885 | EFIAPI\r | |
886 | BdsLibEnumerateAllBootOption (\r | |
887 | IN OUT LIST_ENTRY *BdsBootOptionList\r | |
888 | )\r | |
889 | {\r | |
890 | EFI_STATUS Status;\r | |
891 | UINT16 FloppyNumber;\r | |
892 | UINT16 CdromNumber;\r | |
893 | UINT16 UsbNumber;\r | |
894 | UINT16 MiscNumber;\r | |
895 | UINT16 NonBlockNumber;\r | |
896 | UINTN NumberBlockIoHandles;\r | |
897 | EFI_HANDLE *BlockIoHandles;\r | |
898 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
899 | UINTN Index;\r | |
900 | UINTN NumberSimpleNetworkHandles;\r | |
901 | EFI_HANDLE *SimpleNetworkHandles;\r | |
902 | UINTN FvHandleCount;\r | |
903 | EFI_HANDLE *FvHandleBuffer;\r | |
904 | EFI_FV_FILETYPE Type;\r | |
905 | UINTN Size;\r | |
906 | EFI_FV_FILE_ATTRIBUTES Attributes;\r | |
907 | UINT32 AuthenticationStatus;\r | |
908 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r | |
909 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
910 | UINTN DevicePathType;\r | |
911 | CHAR16 Buffer[40];\r | |
912 | EFI_HANDLE *FileSystemHandles;\r | |
913 | UINTN NumberFileSystemHandles;\r | |
914 | BOOLEAN NeedDelete;\r | |
915 | EFI_IMAGE_DOS_HEADER DosHeader;\r | |
916 | EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;\r | |
917 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
918 | \r | |
919 | FloppyNumber = 0;\r | |
920 | CdromNumber = 0;\r | |
921 | UsbNumber = 0;\r | |
922 | MiscNumber = 0;\r | |
923 | ZeroMem (Buffer, sizeof (Buffer));\r | |
924 | \r | |
925 | //\r | |
926 | // If the boot device enumerate happened, just get the boot\r | |
927 | // device from the boot order variable\r | |
928 | //\r | |
929 | if (mEnumBootDevice) {\r | |
930 | BdsLibBuildOptionFromVar (BdsBootOptionList, L"BootOrder");\r | |
931 | return EFI_SUCCESS;\r | |
932 | }\r | |
933 | \r | |
934 | //\r | |
935 | // Notes: this dirty code is to get the legacy boot option from the\r | |
936 | // BBS table and create to variable as the EFI boot option, it should\r | |
937 | // be removed after the CSM can provide legacy boot option directly\r | |
938 | //\r | |
939 | REFRESH_LEGACY_BOOT_OPTIONS;\r | |
940 | \r | |
941 | //\r | |
942 | // Delete invalid boot option\r | |
943 | //\r | |
944 | BdsDeleteAllInvalidEfiBootOption ();\r | |
945 | \r | |
946 | //\r | |
947 | // Parse removable media\r | |
948 | //\r | |
949 | gBS->LocateHandleBuffer (\r | |
950 | ByProtocol,\r | |
951 | &gEfiBlockIoProtocolGuid,\r | |
952 | NULL,\r | |
953 | &NumberBlockIoHandles,\r | |
954 | &BlockIoHandles\r | |
955 | );\r | |
956 | \r | |
957 | for (Index = 0; Index < NumberBlockIoHandles; Index++) {\r | |
958 | Status = gBS->HandleProtocol (\r | |
959 | BlockIoHandles[Index],\r | |
960 | &gEfiBlockIoProtocolGuid,\r | |
961 | (VOID **) &BlkIo\r | |
962 | );\r | |
963 | if (!EFI_ERROR (Status)) {\r | |
964 | if (!BlkIo->Media->RemovableMedia) {\r | |
965 | //\r | |
966 | // skip the non-removable block devices\r | |
967 | //\r | |
968 | continue;\r | |
969 | }\r | |
970 | }\r | |
971 | DevicePath = DevicePathFromHandle (BlockIoHandles[Index]);\r | |
972 | DevicePathType = BdsGetBootTypeFromDevicePath (DevicePath);\r | |
973 | \r | |
974 | switch (DevicePathType) {\r | |
975 | case BDS_EFI_ACPI_FLOPPY_BOOT:\r | |
976 | if (FloppyNumber == 0) {\r | |
977 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Floppy");\r | |
978 | } else {\r | |
979 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Floppy %d", FloppyNumber);\r | |
980 | }\r | |
981 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r | |
982 | FloppyNumber++;\r | |
983 | break;\r | |
984 | \r | |
985 | case BDS_EFI_MESSAGE_ATAPI_BOOT:\r | |
986 | if (CdromNumber == 0) {\r | |
987 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI DVD/CDROM");\r | |
988 | } else {\r | |
989 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI DVD/CDROM %d", CdromNumber);\r | |
990 | }\r | |
991 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r | |
992 | CdromNumber++;\r | |
993 | break;\r | |
994 | \r | |
995 | case BDS_EFI_MESSAGE_USB_DEVICE_BOOT:\r | |
996 | if (UsbNumber == 0) {\r | |
997 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI USB Device");\r | |
998 | } else {\r | |
999 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI USB Device %d", UsbNumber);\r | |
1000 | }\r | |
1001 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r | |
1002 | UsbNumber++;\r | |
1003 | break;\r | |
1004 | \r | |
1005 | case BDS_EFI_MESSAGE_SCSI_BOOT:\r | |
1006 | if (UsbNumber == 0) {\r | |
1007 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI SCSI Device");\r | |
1008 | } else {\r | |
1009 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI SCSI Device %d", UsbNumber);\r | |
1010 | }\r | |
1011 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r | |
1012 | UsbNumber++;\r | |
1013 | break;\r | |
1014 | \r | |
1015 | case BDS_EFI_MESSAGE_MISC_BOOT:\r | |
1016 | if (MiscNumber == 0) {\r | |
1017 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Misc Device");\r | |
1018 | } else {\r | |
1019 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Misc Device %d", MiscNumber);\r | |
1020 | }\r | |
1021 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r | |
1022 | MiscNumber++;\r | |
1023 | break;\r | |
1024 | \r | |
1025 | default:\r | |
1026 | break;\r | |
1027 | }\r | |
1028 | }\r | |
1029 | \r | |
1030 | if (NumberBlockIoHandles != 0) {\r | |
1031 | FreePool (BlockIoHandles);\r | |
1032 | }\r | |
1033 | \r | |
1034 | //\r | |
1035 | // If there is simple file protocol which does not consume block Io protocol, create a boot option for it here.\r | |
1036 | //\r | |
1037 | NonBlockNumber = 0;\r | |
1038 | gBS->LocateHandleBuffer (\r | |
1039 | ByProtocol,\r | |
1040 | &gEfiSimpleFileSystemProtocolGuid,\r | |
1041 | NULL,\r | |
1042 | &NumberFileSystemHandles,\r | |
1043 | &FileSystemHandles\r | |
1044 | );\r | |
1045 | for (Index = 0; Index < NumberFileSystemHandles; Index++) {\r | |
1046 | Status = gBS->HandleProtocol (\r | |
1047 | FileSystemHandles[Index],\r | |
1048 | &gEfiBlockIoProtocolGuid,\r | |
1049 | (VOID **) &BlkIo\r | |
1050 | );\r | |
1051 | if (!EFI_ERROR (Status)) {\r | |
1052 | //\r | |
1053 | // Skip if the file system handle supports a BlkIo protocol,\r | |
1054 | //\r | |
1055 | continue;\r | |
1056 | }\r | |
1057 | \r | |
1058 | //\r | |
1059 | // Do the removable Media thing. \EFI\BOOT\boot{machinename}.EFI\r | |
1060 | // machinename is ia32, ia64, x64, ...\r | |
1061 | //\r | |
1062 | Hdr.Union = &HdrData;\r | |
1063 | NeedDelete = TRUE;\r | |
1064 | Status = BdsLibGetImageHeader (\r | |
1065 | FileSystemHandles[Index],\r | |
c62dbf31 | 1066 | EFI_REMOVABLE_MEDIA_FILE_NAME,\r |
5c08e117 | 1067 | &DosHeader,\r |
1068 | Hdr\r | |
1069 | );\r | |
1070 | if (!EFI_ERROR (Status) &&\r | |
1071 | EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Hdr.Pe32->FileHeader.Machine) &&\r | |
1072 | Hdr.Pe32->OptionalHeader.Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {\r | |
1073 | NeedDelete = FALSE;\r | |
1074 | }\r | |
1075 | \r | |
1076 | if (NeedDelete) {\r | |
1077 | //\r | |
1078 | // No such file or the file is not a EFI application, delete this boot option\r | |
1079 | //\r | |
1080 | BdsLibDeleteOptionFromHandle (FileSystemHandles[Index]);\r | |
1081 | } else {\r | |
1082 | if (NonBlockNumber == 0) {\r | |
1083 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Non-Block Boot Device");\r | |
1084 | } else {\r | |
1085 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Non-Block Boot Device %d", NonBlockNumber);\r | |
1086 | }\r | |
1087 | BdsLibBuildOptionFromHandle (FileSystemHandles[Index], BdsBootOptionList, Buffer);\r | |
1088 | NonBlockNumber++;\r | |
1089 | }\r | |
1090 | }\r | |
1091 | \r | |
1092 | if (NumberFileSystemHandles != 0) {\r | |
1093 | FreePool (FileSystemHandles);\r | |
1094 | }\r | |
1095 | \r | |
1096 | //\r | |
1097 | // Parse Network Boot Device\r | |
1098 | //\r | |
1099 | gBS->LocateHandleBuffer (\r | |
1100 | ByProtocol,\r | |
1101 | &gEfiSimpleNetworkProtocolGuid,\r | |
1102 | NULL,\r | |
1103 | &NumberSimpleNetworkHandles,\r | |
1104 | &SimpleNetworkHandles\r | |
1105 | );\r | |
1106 | for (Index = 0; Index < NumberSimpleNetworkHandles; Index++) {\r | |
1107 | if (Index == 0) {\r | |
1108 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Network");\r | |
1109 | } else {\r | |
1110 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Network %d", Index);\r | |
1111 | }\r | |
1112 | BdsLibBuildOptionFromHandle (SimpleNetworkHandles[Index], BdsBootOptionList, Buffer);\r | |
1113 | }\r | |
1114 | \r | |
1115 | if (NumberSimpleNetworkHandles != 0) {\r | |
1116 | FreePool (SimpleNetworkHandles);\r | |
1117 | }\r | |
1118 | \r | |
1119 | //\r | |
1120 | // Check if we have on flash shell\r | |
1121 | //\r | |
1122 | gBS->LocateHandleBuffer (\r | |
1123 | ByProtocol,\r | |
1124 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1125 | NULL,\r | |
1126 | &FvHandleCount,\r | |
1127 | &FvHandleBuffer\r | |
1128 | );\r | |
1129 | for (Index = 0; Index < FvHandleCount; Index++) {\r | |
5c08e117 | 1130 | gBS->HandleProtocol (\r |
1131 | FvHandleBuffer[Index],\r | |
1132 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1133 | (VOID **) &Fv\r | |
1134 | );\r | |
1135 | \r | |
1136 | Status = Fv->ReadFile (\r | |
1137 | Fv,\r | |
1138 | &gEfiShellFileGuid,\r | |
1139 | NULL,\r | |
1140 | &Size,\r | |
1141 | &Type,\r | |
1142 | &Attributes,\r | |
1143 | &AuthenticationStatus\r | |
1144 | );\r | |
1145 | if (EFI_ERROR (Status)) {\r | |
1146 | //\r | |
1147 | // Skip if no shell file in the FV\r | |
1148 | //\r | |
1149 | continue;\r | |
1150 | }\r | |
1151 | //\r | |
1152 | // Build the shell boot option\r | |
1153 | //\r | |
1154 | BdsLibBuildOptionFromShell (FvHandleBuffer[Index], BdsBootOptionList);\r | |
1155 | }\r | |
1156 | \r | |
1157 | if (FvHandleCount != 0) {\r | |
1158 | FreePool (FvHandleBuffer);\r | |
1159 | }\r | |
1160 | //\r | |
1161 | // Make sure every boot only have one time\r | |
1162 | // boot device enumerate\r | |
1163 | //\r | |
1164 | BdsLibBuildOptionFromVar (BdsBootOptionList, L"BootOrder");\r | |
1165 | mEnumBootDevice = TRUE;\r | |
1166 | \r | |
1167 | return EFI_SUCCESS;\r | |
1168 | }\r | |
1169 | \r | |
1170 | /**\r | |
1171 | Build the boot option with the handle parsed in\r | |
1172 | \r | |
1173 | @param Handle The handle which present the device path to create\r | |
1174 | boot option\r | |
1175 | @param BdsBootOptionList The header of the link list which indexed all\r | |
1176 | current boot options\r | |
1177 | @param String The description of the boot option.\r | |
1178 | \r | |
1179 | **/\r | |
1180 | VOID\r | |
1181 | EFIAPI\r | |
1182 | BdsLibBuildOptionFromHandle (\r | |
1183 | IN EFI_HANDLE Handle,\r | |
1184 | IN LIST_ENTRY *BdsBootOptionList,\r | |
1185 | IN CHAR16 *String\r | |
1186 | )\r | |
1187 | {\r | |
1188 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
1189 | \r | |
1190 | DevicePath = DevicePathFromHandle (Handle);\r | |
1191 | \r | |
1192 | //\r | |
1193 | // Create and register new boot option\r | |
1194 | //\r | |
1195 | BdsLibRegisterNewOption (BdsBootOptionList, DevicePath, String, L"BootOrder");\r | |
1196 | }\r | |
1197 | \r | |
1198 | \r | |
1199 | /**\r | |
1200 | Build the on flash shell boot option with the handle parsed in.\r | |
1201 | \r | |
1202 | @param Handle The handle which present the device path to create\r | |
1203 | on flash shell boot option\r | |
1204 | @param BdsBootOptionList The header of the link list which indexed all\r | |
1205 | current boot options\r | |
1206 | \r | |
1207 | **/\r | |
1208 | VOID\r | |
1209 | EFIAPI\r | |
1210 | BdsLibBuildOptionFromShell (\r | |
1211 | IN EFI_HANDLE Handle,\r | |
1212 | IN OUT LIST_ENTRY *BdsBootOptionList\r | |
1213 | )\r | |
1214 | {\r | |
1215 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
1216 | MEDIA_FW_VOL_FILEPATH_DEVICE_PATH ShellNode;\r | |
1217 | \r | |
1218 | DevicePath = DevicePathFromHandle (Handle);\r | |
1219 | \r | |
1220 | //\r | |
1221 | // Build the shell device path\r | |
1222 | //\r | |
1223 | EfiInitializeFwVolDevicepathNode (&ShellNode, &gEfiShellFileGuid);\r | |
1224 | \r | |
1225 | DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *) &ShellNode);\r | |
1226 | \r | |
1227 | //\r | |
1228 | // Create and register the shell boot option\r | |
1229 | //\r | |
1230 | BdsLibRegisterNewOption (BdsBootOptionList, DevicePath, L"EFI Internal Shell", L"BootOrder");\r | |
1231 | \r | |
1232 | }\r | |
1233 | \r | |
1234 | /**\r | |
1235 | Boot from the UEFI spec defined "BootNext" variable.\r | |
1236 | \r | |
1237 | **/\r | |
1238 | VOID\r | |
1239 | EFIAPI\r | |
1240 | BdsLibBootNext (\r | |
1241 | VOID\r | |
1242 | )\r | |
1243 | {\r | |
1244 | UINT16 *BootNext;\r | |
1245 | UINTN BootNextSize;\r | |
1246 | CHAR16 Buffer[20];\r | |
1247 | BDS_COMMON_OPTION *BootOption;\r | |
1248 | LIST_ENTRY TempList;\r | |
1249 | UINTN ExitDataSize;\r | |
1250 | CHAR16 *ExitData;\r | |
1251 | \r | |
1252 | //\r | |
1253 | // Init the boot option name buffer and temp link list\r | |
1254 | //\r | |
1255 | InitializeListHead (&TempList);\r | |
1256 | ZeroMem (Buffer, sizeof (Buffer));\r | |
1257 | \r | |
1258 | BootNext = BdsLibGetVariableAndSize (\r | |
1259 | L"BootNext",\r | |
1260 | &gEfiGlobalVariableGuid,\r | |
1261 | &BootNextSize\r | |
1262 | );\r | |
1263 | \r | |
1264 | //\r | |
1265 | // Clear the boot next variable first\r | |
1266 | //\r | |
1267 | if (BootNext != NULL) {\r | |
1268 | gRT->SetVariable (\r | |
1269 | L"BootNext",\r | |
1270 | &gEfiGlobalVariableGuid,\r | |
1271 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
1272 | 0,\r | |
1273 | BootNext\r | |
1274 | );\r | |
1275 | \r | |
1276 | //\r | |
1277 | // Start to build the boot option and try to boot\r | |
1278 | //\r | |
1279 | UnicodeSPrint (Buffer, sizeof (Buffer), L"Boot%04x", *BootNext);\r | |
1280 | BootOption = BdsLibVariableToOption (&TempList, Buffer);\r | |
1281 | ASSERT (BootOption != NULL);\r | |
1282 | BdsLibConnectDevicePath (BootOption->DevicePath);\r | |
1283 | BdsLibBootViaBootOption (BootOption, BootOption->DevicePath, &ExitDataSize, &ExitData);\r | |
1284 | }\r | |
1285 | \r | |
1286 | }\r | |
1287 | \r | |
1288 | /**\r | |
1289 | Return the bootable media handle.\r | |
1290 | First, check the device is connected\r | |
1291 | Second, check whether the device path point to a device which support SimpleFileSystemProtocol,\r | |
1292 | Third, detect the the default boot file in the Media, and return the removable Media handle.\r | |
1293 | \r | |
1294 | @param DevicePath Device Path to a bootable device\r | |
1295 | \r | |
1296 | @retval NULL The media on the DevicePath is not bootable\r | |
1297 | \r | |
1298 | **/\r | |
1299 | EFI_HANDLE\r | |
1300 | EFIAPI\r | |
1301 | BdsLibGetBootableHandle (\r | |
1302 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1303 | )\r | |
1304 | {\r | |
1305 | EFI_STATUS Status;\r | |
1306 | EFI_DEVICE_PATH_PROTOCOL *UpdatedDevicePath;\r | |
1307 | EFI_DEVICE_PATH_PROTOCOL *DupDevicePath;\r | |
1308 | EFI_HANDLE Handle;\r | |
1309 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
1310 | VOID *Buffer;\r | |
1311 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1312 | UINTN Size;\r | |
1313 | UINTN TempSize;\r | |
1314 | EFI_HANDLE ReturnHandle;\r | |
1315 | EFI_HANDLE *SimpleFileSystemHandles;\r | |
1316 | \r | |
1317 | UINTN NumberSimpleFileSystemHandles;\r | |
1318 | UINTN Index;\r | |
1319 | EFI_IMAGE_DOS_HEADER DosHeader;\r | |
1320 | EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;\r | |
1321 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
1322 | \r | |
1323 | UpdatedDevicePath = DevicePath;\r | |
1324 | \r | |
1325 | //\r | |
1326 | // Check whether the device is connected\r | |
1327 | //\r | |
1328 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1329 | if (EFI_ERROR (Status)) {\r | |
1330 | //\r | |
1331 | // Skip the case that the boot option point to a simple file protocol which does not consume block Io protocol,\r | |
1332 | //\r | |
1333 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1334 | if (EFI_ERROR (Status)) {\r | |
1335 | //\r | |
1336 | // Fail to find the proper BlockIo and simple file protocol, maybe because device not present, we need to connect it firstly\r | |
1337 | //\r | |
1338 | UpdatedDevicePath = DevicePath;\r | |
1339 | Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1340 | gBS->ConnectController (Handle, NULL, NULL, TRUE);\r | |
1341 | }\r | |
1342 | } else {\r | |
1343 | //\r | |
1344 | // Get BlockIo protocol and check removable attribute\r | |
1345 | //\r | |
1346 | Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **)&BlockIo);\r | |
1347 | //\r | |
1348 | // Issue a dummy read to the device to check for media change.\r | |
1349 | // When the removable media is changed, any Block IO read/write will\r | |
1350 | // cause the BlockIo protocol be reinstalled and EFI_MEDIA_CHANGED is\r | |
1351 | // returned. After the Block IO protocol is reinstalled, subsequent\r | |
1352 | // Block IO read/write will success.\r | |
1353 | //\r | |
1354 | Buffer = AllocatePool (BlockIo->Media->BlockSize);\r | |
1355 | if (Buffer != NULL) {\r | |
1356 | BlockIo->ReadBlocks (\r | |
1357 | BlockIo,\r | |
1358 | BlockIo->Media->MediaId,\r | |
1359 | 0,\r | |
1360 | BlockIo->Media->BlockSize,\r | |
1361 | Buffer\r | |
1362 | );\r | |
1363 | FreePool(Buffer);\r | |
1364 | }\r | |
1365 | }\r | |
1366 | \r | |
1367 | //\r | |
1368 | // Detect the the default boot file from removable Media\r | |
1369 | //\r | |
1370 | \r | |
1371 | //\r | |
1372 | // If fail to get bootable handle specified by a USB boot option, the BDS should try to find other bootable device in the same USB bus\r | |
1373 | // Try to locate the USB node device path first, if fail then use its previous PCI node to search\r | |
1374 | //\r | |
1375 | DupDevicePath = DuplicateDevicePath (DevicePath);\r | |
1376 | ASSERT (DupDevicePath != NULL);\r | |
1377 | \r | |
1378 | UpdatedDevicePath = DupDevicePath;\r | |
1379 | Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1380 | //\r | |
1381 | // if the resulting device path point to a usb node, and the usb node is a dummy node, should only let device path only point to the previous Pci node\r | |
1382 | // Acpi()/Pci()/Usb() --> Acpi()/Pci()\r | |
1383 | //\r | |
1384 | if ((DevicePathType (UpdatedDevicePath) == MESSAGING_DEVICE_PATH) &&\r | |
1385 | (DevicePathSubType (UpdatedDevicePath) == MSG_USB_DP)) {\r | |
1386 | //\r | |
1387 | // Remove the usb node, let the device path only point to PCI node\r | |
1388 | //\r | |
1389 | SetDevicePathEndNode (UpdatedDevicePath);\r | |
1390 | UpdatedDevicePath = DupDevicePath;\r | |
1391 | } else {\r | |
1392 | UpdatedDevicePath = DevicePath;\r | |
1393 | }\r | |
1394 | \r | |
1395 | //\r | |
1396 | // Get the device path size of boot option\r | |
1397 | //\r | |
1398 | Size = GetDevicePathSize(UpdatedDevicePath) - sizeof (EFI_DEVICE_PATH_PROTOCOL); // minus the end node\r | |
1399 | ReturnHandle = NULL;\r | |
1400 | gBS->LocateHandleBuffer (\r | |
1401 | ByProtocol,\r | |
1402 | &gEfiSimpleFileSystemProtocolGuid,\r | |
1403 | NULL,\r | |
1404 | &NumberSimpleFileSystemHandles,\r | |
1405 | &SimpleFileSystemHandles\r | |
1406 | );\r | |
1407 | for (Index = 0; Index < NumberSimpleFileSystemHandles; Index++) {\r | |
1408 | //\r | |
1409 | // Get the device path size of SimpleFileSystem handle\r | |
1410 | //\r | |
1411 | TempDevicePath = DevicePathFromHandle (SimpleFileSystemHandles[Index]);\r | |
1412 | TempSize = GetDevicePathSize (TempDevicePath)- sizeof (EFI_DEVICE_PATH_PROTOCOL); // minus the end node\r | |
1413 | //\r | |
1414 | // Check whether the device path of boot option is part of the SimpleFileSystem handle's device path\r | |
1415 | //\r | |
1416 | if (Size <= TempSize && CompareMem (TempDevicePath, UpdatedDevicePath, Size)==0) {\r | |
1417 | //\r | |
1418 | // Load the default boot file \EFI\BOOT\boot{machinename}.EFI from removable Media\r | |
1419 | // machinename is ia32, ia64, x64, ...\r | |
1420 | //\r | |
1421 | Hdr.Union = &HdrData;\r | |
1422 | Status = BdsLibGetImageHeader (\r | |
1423 | SimpleFileSystemHandles[Index],\r | |
c62dbf31 | 1424 | EFI_REMOVABLE_MEDIA_FILE_NAME,\r |
5c08e117 | 1425 | &DosHeader,\r |
1426 | Hdr\r | |
1427 | );\r | |
1428 | if (!EFI_ERROR (Status) &&\r | |
1429 | EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Hdr.Pe32->FileHeader.Machine) &&\r | |
1430 | Hdr.Pe32->OptionalHeader.Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {\r | |
1431 | ReturnHandle = SimpleFileSystemHandles[Index];\r | |
1432 | break;\r | |
1433 | }\r | |
1434 | }\r | |
1435 | }\r | |
1436 | \r | |
1437 | FreePool(DupDevicePath);\r | |
1438 | \r | |
1439 | if (SimpleFileSystemHandles != NULL) {\r | |
1440 | FreePool(SimpleFileSystemHandles);\r | |
1441 | }\r | |
1442 | \r | |
1443 | return ReturnHandle;\r | |
1444 | }\r | |
1445 | \r | |
1446 | /**\r | |
1447 | Check to see if the network cable is plugged in. If the DevicePath is not\r | |
1448 | connected it will be connected.\r | |
1449 | \r | |
1450 | @param DevicePath Device Path to check\r | |
1451 | \r | |
1452 | @retval TRUE DevicePath points to an Network that is connected\r | |
1453 | @retval FALSE DevicePath does not point to a bootable network\r | |
1454 | \r | |
1455 | **/\r | |
1456 | BOOLEAN\r | |
1457 | BdsLibNetworkBootWithMediaPresent (\r | |
1458 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1459 | )\r | |
1460 | {\r | |
1461 | EFI_STATUS Status;\r | |
1462 | EFI_DEVICE_PATH_PROTOCOL *UpdatedDevicePath;\r | |
1463 | EFI_HANDLE Handle;\r | |
1464 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
1465 | BOOLEAN MediaPresent;\r | |
1466 | \r | |
1467 | MediaPresent = FALSE;\r | |
1468 | \r | |
1469 | UpdatedDevicePath = DevicePath;\r | |
1470 | Status = gBS->LocateDevicePath (&gEfiSimpleNetworkProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1471 | if (EFI_ERROR (Status)) {\r | |
1472 | //\r | |
1473 | // Device not present so see if we need to connect it\r | |
1474 | //\r | |
1475 | Status = BdsLibConnectDevicePath (DevicePath);\r | |
1476 | if (!EFI_ERROR (Status)) {\r | |
1477 | //\r | |
1478 | // This one should work after we did the connect\r | |
1479 | //\r | |
1480 | Status = gBS->LocateDevicePath (&gEfiSimpleNetworkProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1481 | }\r | |
1482 | }\r | |
1483 | \r | |
1484 | if (!EFI_ERROR (Status)) {\r | |
1485 | Status = gBS->HandleProtocol (Handle, &gEfiSimpleNetworkProtocolGuid, (VOID **)&Snp);\r | |
1486 | if (!EFI_ERROR (Status)) {\r | |
1487 | if (Snp->Mode->MediaPresentSupported) {\r | |
1488 | if (Snp->Mode->State == EfiSimpleNetworkInitialized) {\r | |
1489 | //\r | |
1490 | // In case some one else is using the SNP check to see if it's connected\r | |
1491 | //\r | |
1492 | MediaPresent = Snp->Mode->MediaPresent;\r | |
1493 | } else {\r | |
1494 | //\r | |
1495 | // No one is using SNP so we need to Start and Initialize so\r | |
1496 | // MediaPresent will be valid.\r | |
1497 | //\r | |
1498 | Status = Snp->Start (Snp);\r | |
1499 | if (!EFI_ERROR (Status)) {\r | |
1500 | Status = Snp->Initialize (Snp, 0, 0);\r | |
1501 | if (!EFI_ERROR (Status)) {\r | |
1502 | MediaPresent = Snp->Mode->MediaPresent;\r | |
1503 | Snp->Shutdown (Snp);\r | |
1504 | }\r | |
1505 | Snp->Stop (Snp);\r | |
1506 | }\r | |
1507 | }\r | |
1508 | } else {\r | |
1509 | MediaPresent = TRUE;\r | |
1510 | }\r | |
1511 | }\r | |
1512 | }\r | |
1513 | \r | |
1514 | return MediaPresent;\r | |
1515 | }\r | |
1516 | \r | |
1517 | /**\r | |
1518 | For a bootable Device path, return its boot type.\r | |
1519 | \r | |
1520 | @param DevicePath The bootable device Path to check\r | |
1521 | \r | |
1522 | @retval BDS_EFI_MEDIA_HD_BOOT If the device path contains any media device path node, it is media boot type\r | |
1523 | For the floppy node, handle it as media node\r | |
1524 | @retval BDS_EFI_MEDIA_CDROM_BOOT If the device path contains any media device path node, it is media boot type\r | |
1525 | For the floppy node, handle it as media node\r | |
1526 | @retval BDS_EFI_ACPI_FLOPPY_BOOT If the device path contains any media device path node, it is media boot type\r | |
1527 | For the floppy node, handle it as media node\r | |
1528 | @retval BDS_EFI_MESSAGE_ATAPI_BOOT If the device path not contains any media device path node, and\r | |
1529 | its last device path node point to a message device path node, it is\r | |
1530 | \r | |
1531 | @retval BDS_EFI_MESSAGE_SCSI_BOOT If the device path not contains any media device path node, and\r | |
1532 | its last device path node point to a message device path node, it is\r | |
1533 | @retval BDS_EFI_MESSAGE_USB_DEVICE_BOOT If the device path not contains any media device path node, and\r | |
1534 | its last device path node point to a message device path node, it is\r | |
1535 | @retval BDS_EFI_MESSAGE_MISC_BOOT If the device path not contains any media device path node, and\r | |
1536 | its last device path node point to a message device path node, it is\r | |
1537 | @retval BDS_LEGACY_BBS_BOOT Legacy boot type\r | |
1538 | @retval BDS_EFI_UNSUPPORT An EFI Removable BlockIO device path not point to a media and message device, \r | |
1539 | \r | |
1540 | **/\r | |
1541 | UINT32\r | |
1542 | EFIAPI\r | |
1543 | BdsGetBootTypeFromDevicePath (\r | |
1544 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1545 | )\r | |
1546 | {\r | |
1547 | ACPI_HID_DEVICE_PATH *Acpi;\r | |
1548 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1549 | EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;\r | |
1550 | \r | |
1551 | \r | |
1552 | if (NULL == DevicePath) {\r | |
1553 | return BDS_EFI_UNSUPPORT;\r | |
1554 | }\r | |
1555 | \r | |
1556 | TempDevicePath = DevicePath;\r | |
1557 | \r | |
1558 | while (!IsDevicePathEndType (TempDevicePath)) {\r | |
1559 | switch (DevicePathType (TempDevicePath)) {\r | |
1560 | case BBS_DEVICE_PATH:\r | |
1561 | return BDS_LEGACY_BBS_BOOT;\r | |
1562 | case MEDIA_DEVICE_PATH:\r | |
1563 | if (DevicePathSubType (TempDevicePath) == MEDIA_HARDDRIVE_DP) {\r | |
1564 | return BDS_EFI_MEDIA_HD_BOOT;\r | |
1565 | } else if (DevicePathSubType (TempDevicePath) == MEDIA_CDROM_DP) {\r | |
1566 | return BDS_EFI_MEDIA_CDROM_BOOT;\r | |
1567 | }\r | |
1568 | break;\r | |
1569 | case ACPI_DEVICE_PATH:\r | |
1570 | Acpi = (ACPI_HID_DEVICE_PATH *) TempDevicePath;\r | |
1571 | if (EISA_ID_TO_NUM (Acpi->HID) == 0x0604) {\r | |
1572 | return BDS_EFI_ACPI_FLOPPY_BOOT;\r | |
1573 | }\r | |
1574 | break;\r | |
1575 | case MESSAGING_DEVICE_PATH:\r | |
1576 | //\r | |
1577 | // Get the last device path node\r | |
1578 | //\r | |
1579 | LastDeviceNode = NextDevicePathNode (TempDevicePath);\r | |
1580 | if (DevicePathSubType(LastDeviceNode) == MSG_DEVICE_LOGICAL_UNIT_DP) {\r | |
1581 | //\r | |
1582 | // if the next node type is Device Logical Unit, which specify the Logical Unit Number (LUN),\r | |
1583 | // skit it\r | |
1584 | //\r | |
1585 | LastDeviceNode = NextDevicePathNode (LastDeviceNode);\r | |
1586 | }\r | |
1587 | //\r | |
1588 | // if the device path not only point to driver device, it is not a messaging device path,\r | |
1589 | //\r | |
1590 | if (!IsDevicePathEndType (LastDeviceNode)) {\r | |
1591 | break; \r | |
1592 | }\r | |
1593 | \r | |
1594 | if (DevicePathSubType(TempDevicePath) == MSG_ATAPI_DP) {\r | |
1595 | return BDS_EFI_MESSAGE_ATAPI_BOOT;\r | |
1596 | } else if (DevicePathSubType(TempDevicePath) == MSG_USB_DP) {\r | |
1597 | return BDS_EFI_MESSAGE_USB_DEVICE_BOOT;\r | |
1598 | } else if (DevicePathSubType(TempDevicePath) == MSG_SCSI_DP) {\r | |
1599 | return BDS_EFI_MESSAGE_SCSI_BOOT;\r | |
1600 | }\r | |
1601 | return BDS_EFI_MESSAGE_MISC_BOOT;\r | |
1602 | default:\r | |
1603 | break;\r | |
1604 | }\r | |
1605 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
1606 | }\r | |
1607 | \r | |
1608 | return BDS_EFI_UNSUPPORT;\r | |
1609 | }\r | |
1610 | \r | |
1611 | /**\r | |
1612 | Check whether the Device path in a boot option point to a valid bootable device,\r | |
1613 | And if CheckMedia is true, check the device is ready to boot now.\r | |
1614 | \r | |
1615 | @param DevPath the Device path in a boot option\r | |
1616 | @param CheckMedia if true, check the device is ready to boot now.\r | |
1617 | \r | |
1618 | @retval TRUE the Device path is valid\r | |
1619 | @retval FALSE the Device path is invalid .\r | |
1620 | \r | |
1621 | **/\r | |
1622 | BOOLEAN\r | |
1623 | EFIAPI\r | |
1624 | BdsLibIsValidEFIBootOptDevicePath (\r | |
1625 | IN EFI_DEVICE_PATH_PROTOCOL *DevPath,\r | |
1626 | IN BOOLEAN CheckMedia\r | |
1627 | )\r | |
1628 | {\r | |
1629 | EFI_STATUS Status;\r | |
1630 | EFI_HANDLE Handle;\r | |
1631 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1632 | EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;\r | |
1633 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
1634 | \r | |
1635 | TempDevicePath = DevPath;\r | |
1636 | LastDeviceNode = DevPath;\r | |
1637 | \r | |
1638 | //\r | |
1639 | // Check if it's a valid boot option for network boot device\r | |
1640 | // Only check if there is SimpleNetworkProtocol installed. If yes, that means\r | |
1641 | // there is the network card there.\r | |
1642 | //\r | |
1643 | Status = gBS->LocateDevicePath (\r | |
1644 | &gEfiSimpleNetworkProtocolGuid,\r | |
1645 | &TempDevicePath,\r | |
1646 | &Handle\r | |
1647 | );\r | |
1648 | if (EFI_ERROR (Status)) {\r | |
1649 | //\r | |
1650 | // Device not present so see if we need to connect it\r | |
1651 | //\r | |
1652 | TempDevicePath = DevPath;\r | |
1653 | BdsLibConnectDevicePath (TempDevicePath);\r | |
1654 | Status = gBS->LocateDevicePath (\r | |
1655 | &gEfiSimpleNetworkProtocolGuid,\r | |
1656 | &TempDevicePath,\r | |
1657 | &Handle\r | |
1658 | );\r | |
1659 | }\r | |
1660 | \r | |
1661 | if (!EFI_ERROR (Status)) {\r | |
1662 | if (CheckMedia) {\r | |
1663 | //\r | |
1664 | // Test if it is ready to boot now\r | |
1665 | //\r | |
1666 | if (BdsLibNetworkBootWithMediaPresent(DevPath)) {\r | |
1667 | return TRUE;\r | |
1668 | }\r | |
1669 | } else {\r | |
1670 | return TRUE;\r | |
1671 | }\r | |
1672 | }\r | |
1673 | \r | |
1674 | //\r | |
1675 | // If the boot option point to a file, it is a valid EFI boot option,\r | |
1676 | // and assume it is ready to boot now\r | |
1677 | //\r | |
1678 | while (!IsDevicePathEnd (TempDevicePath)) {\r | |
1679 | LastDeviceNode = TempDevicePath;\r | |
1680 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
1681 | }\r | |
1682 | if ((DevicePathType (LastDeviceNode) == MEDIA_DEVICE_PATH) &&\r | |
1683 | (DevicePathSubType (LastDeviceNode) == MEDIA_FILEPATH_DP)) {\r | |
1684 | return TRUE;\r | |
1685 | }\r | |
1686 | \r | |
1687 | //\r | |
1688 | // Check if it's a valid boot option for internal Shell\r | |
1689 | //\r | |
1690 | if (EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) LastDeviceNode) != NULL) {\r | |
1691 | //\r | |
1692 | // If the boot option point to Internal FV shell, make sure it is valid\r | |
1693 | //\r | |
1694 | TempDevicePath = DevPath; \r | |
1695 | Status = BdsLibUpdateFvFileDevicePath (&TempDevicePath, &gEfiShellFileGuid);\r | |
1696 | if (Status == EFI_ALREADY_STARTED) {\r | |
1697 | return TRUE;\r | |
1698 | } else {\r | |
1699 | if (Status == EFI_SUCCESS) {\r | |
1700 | FreePool (TempDevicePath); \r | |
1701 | }\r | |
1702 | return FALSE;\r | |
1703 | }\r | |
1704 | }\r | |
1705 | \r | |
1706 | //\r | |
1707 | // If the boot option point to a blockIO device, no matter whether or not it is a removeable device, it is a valid EFI boot option\r | |
1708 | //\r | |
1709 | TempDevicePath = DevPath;\r | |
1710 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &TempDevicePath, &Handle);\r | |
1711 | if (EFI_ERROR (Status)) {\r | |
1712 | //\r | |
1713 | // Device not present so see if we need to connect it\r | |
1714 | //\r | |
1715 | Status = BdsLibConnectDevicePath (DevPath);\r | |
1716 | if (!EFI_ERROR (Status)) {\r | |
1717 | //\r | |
1718 | // Try again to get the Block Io protocol after we did the connect\r | |
1719 | //\r | |
1720 | TempDevicePath = DevPath;\r | |
1721 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &TempDevicePath, &Handle);\r | |
1722 | }\r | |
1723 | }\r | |
1724 | \r | |
1725 | if (!EFI_ERROR (Status)) {\r | |
1726 | Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **)&BlockIo);\r | |
1727 | if (!EFI_ERROR (Status)) {\r | |
1728 | if (CheckMedia) {\r | |
1729 | //\r | |
1730 | // Test if it is ready to boot now\r | |
1731 | //\r | |
1732 | if (BdsLibGetBootableHandle (DevPath) != NULL) {\r | |
1733 | return TRUE;\r | |
1734 | }\r | |
1735 | } else {\r | |
1736 | return TRUE;\r | |
1737 | }\r | |
1738 | }\r | |
1739 | } else {\r | |
1740 | //\r | |
1741 | // if the boot option point to a simple file protocol which does not consume block Io protocol, it is also a valid EFI boot option,\r | |
1742 | //\r | |
1743 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &TempDevicePath, &Handle);\r | |
1744 | if (!EFI_ERROR (Status)) {\r | |
1745 | if (CheckMedia) {\r | |
1746 | //\r | |
1747 | // Test if it is ready to boot now\r | |
1748 | //\r | |
1749 | if (BdsLibGetBootableHandle (DevPath) != NULL) {\r | |
1750 | return TRUE;\r | |
1751 | }\r | |
1752 | } else {\r | |
1753 | return TRUE;\r | |
1754 | }\r | |
1755 | }\r | |
1756 | }\r | |
1757 | \r | |
1758 | return FALSE;\r | |
1759 | }\r | |
1760 | \r | |
1761 | \r | |
1762 | /**\r | |
1763 | According to a file guild, check a Fv file device path is valid. If it is invalid,\r | |
1764 | try to return the valid device path.\r | |
1765 | FV address maybe changes for memory layout adjust from time to time, use this function\r | |
1766 | could promise the Fv file device path is right.\r | |
1767 | \r | |
1768 | @param DevicePath on input, the Fv file device path need to check on\r | |
1769 | output, the updated valid Fv file device path\r | |
1770 | @param FileGuid the Fv file guild\r | |
1771 | \r | |
1772 | @retval EFI_INVALID_PARAMETER the input DevicePath or FileGuid is invalid\r | |
1773 | parameter\r | |
1774 | @retval EFI_UNSUPPORTED the input DevicePath does not contain Fv file\r | |
1775 | guild at all\r | |
1776 | @retval EFI_ALREADY_STARTED the input DevicePath has pointed to Fv file, it is\r | |
1777 | valid\r | |
1778 | @retval EFI_SUCCESS has successfully updated the invalid DevicePath,\r | |
1779 | and return the updated device path in DevicePath\r | |
1780 | \r | |
1781 | **/\r | |
1782 | EFI_STATUS\r | |
1783 | EFIAPI\r | |
1784 | BdsLibUpdateFvFileDevicePath (\r | |
1785 | IN OUT EFI_DEVICE_PATH_PROTOCOL ** DevicePath,\r | |
1786 | IN EFI_GUID *FileGuid\r | |
1787 | )\r | |
1788 | {\r | |
1789 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1790 | EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;\r | |
1791 | EFI_STATUS Status;\r | |
1792 | EFI_GUID *GuidPoint;\r | |
1793 | UINTN Index;\r | |
1794 | UINTN FvHandleCount;\r | |
1795 | EFI_HANDLE *FvHandleBuffer;\r | |
1796 | EFI_FV_FILETYPE Type;\r | |
1797 | UINTN Size;\r | |
1798 | EFI_FV_FILE_ATTRIBUTES Attributes;\r | |
1799 | UINT32 AuthenticationStatus;\r | |
1800 | BOOLEAN FindFvFile;\r | |
1801 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
1802 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r | |
1803 | MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FvFileNode;\r | |
1804 | EFI_HANDLE FoundFvHandle;\r | |
1805 | EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;\r | |
1806 | \r | |
1807 | if ((DevicePath == NULL) || (*DevicePath == NULL)) {\r | |
1808 | return EFI_INVALID_PARAMETER;\r | |
1809 | }\r | |
1810 | if (FileGuid == NULL) {\r | |
1811 | return EFI_INVALID_PARAMETER;\r | |
1812 | }\r | |
1813 | \r | |
1814 | //\r | |
1815 | // Check whether the device path point to the default the input Fv file\r | |
1816 | //\r | |
1817 | TempDevicePath = *DevicePath;\r | |
1818 | LastDeviceNode = TempDevicePath;\r | |
1819 | while (!IsDevicePathEnd (TempDevicePath)) {\r | |
1820 | LastDeviceNode = TempDevicePath;\r | |
1821 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
1822 | }\r | |
1823 | GuidPoint = EfiGetNameGuidFromFwVolDevicePathNode (\r | |
1824 | (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) LastDeviceNode\r | |
1825 | );\r | |
1826 | if (GuidPoint == NULL) {\r | |
1827 | //\r | |
1828 | // if this option does not points to a Fv file, just return EFI_UNSUPPORTED\r | |
1829 | //\r | |
1830 | return EFI_UNSUPPORTED;\r | |
1831 | }\r | |
1832 | if (!CompareGuid (GuidPoint, FileGuid)) {\r | |
1833 | //\r | |
1834 | // If the Fv file is not the input file guid, just return EFI_UNSUPPORTED\r | |
1835 | //\r | |
1836 | return EFI_UNSUPPORTED;\r | |
1837 | }\r | |
1838 | \r | |
1839 | //\r | |
1840 | // Check whether the input Fv file device path is valid\r | |
1841 | //\r | |
1842 | TempDevicePath = *DevicePath;\r | |
1843 | FoundFvHandle = NULL;\r | |
1844 | Status = gBS->LocateDevicePath (\r | |
1845 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1846 | &TempDevicePath,\r | |
1847 | &FoundFvHandle\r | |
1848 | );\r | |
1849 | if (!EFI_ERROR (Status)) {\r | |
1850 | Status = gBS->HandleProtocol (\r | |
1851 | FoundFvHandle,\r | |
1852 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1853 | (VOID **) &Fv\r | |
1854 | );\r | |
1855 | if (!EFI_ERROR (Status)) {\r | |
1856 | //\r | |
1857 | // Set FV ReadFile Buffer as NULL, only need to check whether input Fv file exist there\r | |
1858 | //\r | |
1859 | Status = Fv->ReadFile (\r | |
1860 | Fv,\r | |
1861 | FileGuid,\r | |
1862 | NULL,\r | |
1863 | &Size,\r | |
1864 | &Type,\r | |
1865 | &Attributes,\r | |
1866 | &AuthenticationStatus\r | |
1867 | );\r | |
1868 | if (!EFI_ERROR (Status)) {\r | |
1869 | return EFI_ALREADY_STARTED;\r | |
1870 | }\r | |
1871 | }\r | |
1872 | }\r | |
1873 | \r | |
1874 | //\r | |
1875 | // Look for the input wanted FV file in current FV\r | |
1876 | // First, try to look for in Bds own FV. Bds and input wanted FV file usually are in the same FV\r | |
1877 | //\r | |
1878 | FindFvFile = FALSE;\r | |
1879 | FoundFvHandle = NULL;\r | |
1880 | Status = gBS->HandleProtocol (\r | |
1881 | mBdsImageHandle,\r | |
1882 | &gEfiLoadedImageProtocolGuid,\r | |
1883 | (VOID **) &LoadedImage\r | |
1884 | );\r | |
1885 | if (!EFI_ERROR (Status)) {\r | |
1886 | Status = gBS->HandleProtocol (\r | |
1887 | LoadedImage->DeviceHandle,\r | |
1888 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1889 | (VOID **) &Fv\r | |
1890 | );\r | |
1891 | if (!EFI_ERROR (Status)) {\r | |
1892 | Status = Fv->ReadFile (\r | |
1893 | Fv,\r | |
1894 | FileGuid,\r | |
1895 | NULL,\r | |
1896 | &Size,\r | |
1897 | &Type,\r | |
1898 | &Attributes,\r | |
1899 | &AuthenticationStatus\r | |
1900 | );\r | |
1901 | if (!EFI_ERROR (Status)) {\r | |
1902 | FindFvFile = TRUE;\r | |
1903 | FoundFvHandle = LoadedImage->DeviceHandle;\r | |
1904 | }\r | |
1905 | }\r | |
1906 | }\r | |
1907 | //\r | |
1908 | // Second, if fail to find, try to enumerate all FV\r | |
1909 | //\r | |
1910 | if (!FindFvFile) {\r | |
1911 | FvHandleBuffer = NULL;\r | |
1912 | gBS->LocateHandleBuffer (\r | |
1913 | ByProtocol,\r | |
1914 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1915 | NULL,\r | |
1916 | &FvHandleCount,\r | |
1917 | &FvHandleBuffer\r | |
1918 | );\r | |
1919 | for (Index = 0; Index < FvHandleCount; Index++) {\r | |
1920 | gBS->HandleProtocol (\r | |
1921 | FvHandleBuffer[Index],\r | |
1922 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1923 | (VOID **) &Fv\r | |
1924 | );\r | |
1925 | \r | |
1926 | Status = Fv->ReadFile (\r | |
1927 | Fv,\r | |
1928 | FileGuid,\r | |
1929 | NULL,\r | |
1930 | &Size,\r | |
1931 | &Type,\r | |
1932 | &Attributes,\r | |
1933 | &AuthenticationStatus\r | |
1934 | );\r | |
1935 | if (EFI_ERROR (Status)) {\r | |
1936 | //\r | |
1937 | // Skip if input Fv file not in the FV\r | |
1938 | //\r | |
1939 | continue;\r | |
1940 | }\r | |
1941 | FindFvFile = TRUE;\r | |
1942 | FoundFvHandle = FvHandleBuffer[Index];\r | |
1943 | break;\r | |
1944 | }\r | |
1945 | \r | |
1946 | if (FvHandleBuffer != NULL) {\r | |
1947 | FreePool (FvHandleBuffer); \r | |
1948 | }\r | |
1949 | }\r | |
1950 | \r | |
1951 | if (FindFvFile) {\r | |
1952 | //\r | |
1953 | // Build the shell device path\r | |
1954 | //\r | |
1955 | NewDevicePath = DevicePathFromHandle (FoundFvHandle);\r | |
1956 | EfiInitializeFwVolDevicepathNode (&FvFileNode, FileGuid);\r | |
1957 | NewDevicePath = AppendDevicePathNode (NewDevicePath, (EFI_DEVICE_PATH_PROTOCOL *) &FvFileNode);\r | |
1958 | *DevicePath = NewDevicePath;\r | |
1959 | return EFI_SUCCESS;\r | |
1960 | }\r | |
1961 | return EFI_NOT_FOUND;\r | |
1962 | }\r |