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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 | |
3d7decbc | 82 | BOOLEAN\r |
83 | IsBootOptionValidNVVarialbe (\r | |
84 | IN BDS_COMMON_OPTION *OptionToCheck\r | |
85 | )\r | |
86 | {\r | |
87 | LIST_ENTRY TempList;\r | |
88 | BDS_COMMON_OPTION *BootOption;\r | |
89 | BOOLEAN Valid;\r | |
90 | CHAR16 OptionName[20];\r | |
91 | \r | |
92 | Valid = FALSE;\r | |
93 | \r | |
94 | InitializeListHead (&TempList);\r | |
95 | UnicodeSPrint (OptionName, sizeof (OptionName), L"Boot%04x", OptionToCheck->BootCurrent);\r | |
5c08e117 | 96 | \r |
3d7decbc | 97 | BootOption = BdsLibVariableToOption (&TempList, OptionName);\r |
98 | if (BootOption == NULL) {\r | |
99 | return FALSE;\r | |
100 | }\r | |
101 | \r | |
102 | //\r | |
103 | // If the Boot Option Number and Device Path matches, OptionToCheck matches a \r | |
104 | // valid EFI NV Boot####.\r | |
105 | //\r | |
106 | if ((OptionToCheck->BootCurrent == BootOption->BootCurrent) &&\r | |
107 | (CompareMem (OptionToCheck->DevicePath, BootOption->DevicePath, GetDevicePathSize (OptionToCheck->DevicePath)) == 0))\r | |
108 | {\r | |
109 | Valid = TRUE;\r | |
110 | }\r | |
111 | \r | |
112 | FreePool (BootOption);\r | |
113 | \r | |
114 | return Valid;\r | |
115 | }\r | |
5c08e117 | 116 | /**\r |
117 | Process the boot option follow the UEFI specification and\r | |
118 | special treat the legacy boot option with BBS_DEVICE_PATH.\r | |
119 | \r | |
120 | @param Option The boot option need to be processed\r | |
121 | @param DevicePath The device path which describe where to load the\r | |
122 | boot image or the legacy BBS device path to boot\r | |
123 | the legacy OS\r | |
124 | @param ExitDataSize The size of exit data.\r | |
125 | @param ExitData Data returned when Boot image failed.\r | |
126 | \r | |
127 | @retval EFI_SUCCESS Boot from the input boot option successfully.\r | |
128 | @retval EFI_NOT_FOUND If the Device Path is not found in the system\r | |
129 | \r | |
130 | **/\r | |
131 | EFI_STATUS\r | |
132 | EFIAPI\r | |
133 | BdsLibBootViaBootOption (\r | |
134 | IN BDS_COMMON_OPTION *Option,\r | |
135 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
136 | OUT UINTN *ExitDataSize,\r | |
137 | OUT CHAR16 **ExitData OPTIONAL\r | |
138 | )\r | |
139 | {\r | |
140 | EFI_STATUS Status;\r | |
141 | EFI_HANDLE Handle;\r | |
142 | EFI_HANDLE ImageHandle;\r | |
143 | EFI_DEVICE_PATH_PROTOCOL *FilePath;\r | |
144 | EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;\r | |
145 | EFI_DEVICE_PATH_PROTOCOL *WorkingDevicePath;\r | |
146 | EFI_ACPI_S3_SAVE_PROTOCOL *AcpiS3Save;\r | |
147 | LIST_ENTRY TempBootLists;\r | |
07d97279 | 148 | EFI_SECURITY_ARCH_PROTOCOL *SecurityProtocol;\r |
5c08e117 | 149 | \r |
150 | //\r | |
151 | // Record the performance data for End of BDS\r | |
152 | //\r | |
6055758f | 153 | PERF_END (0, "BDS", NULL, 0);\r |
5c08e117 | 154 | \r |
155 | *ExitDataSize = 0;\r | |
156 | *ExitData = NULL;\r | |
157 | \r | |
158 | //\r | |
159 | // Notes: put EFI64 ROM Shadow Solution\r | |
160 | //\r | |
161 | EFI64_SHADOW_ALL_LEGACY_ROM ();\r | |
162 | \r | |
163 | //\r | |
164 | // Notes: this code can be remove after the s3 script table\r | |
165 | // hook on the event EVT_SIGNAL_READY_TO_BOOT or\r | |
166 | // EVT_SIGNAL_LEGACY_BOOT\r | |
167 | //\r | |
168 | Status = gBS->LocateProtocol (&gEfiAcpiS3SaveProtocolGuid, NULL, (VOID **) &AcpiS3Save);\r | |
169 | if (!EFI_ERROR (Status)) {\r | |
170 | AcpiS3Save->S3Save (AcpiS3Save, NULL);\r | |
171 | }\r | |
172 | //\r | |
173 | // If it's Device Path that starts with a hard drive path, append it with the front part to compose a\r | |
174 | // full device path\r | |
175 | //\r | |
176 | WorkingDevicePath = NULL;\r | |
177 | if ((DevicePathType (DevicePath) == MEDIA_DEVICE_PATH) &&\r | |
178 | (DevicePathSubType (DevicePath) == MEDIA_HARDDRIVE_DP)) {\r | |
179 | WorkingDevicePath = BdsExpandPartitionPartialDevicePathToFull (\r | |
180 | (HARDDRIVE_DEVICE_PATH *)DevicePath\r | |
181 | );\r | |
182 | if (WorkingDevicePath != NULL) {\r | |
183 | DevicePath = WorkingDevicePath;\r | |
184 | }\r | |
185 | }\r | |
186 | //\r | |
187 | // Signal the EVT_SIGNAL_READY_TO_BOOT event\r | |
188 | //\r | |
189 | EfiSignalEventReadyToBoot();\r | |
190 | \r | |
191 | \r | |
192 | //\r | |
193 | // Set Boot Current\r | |
194 | //\r | |
3d7decbc | 195 | if (IsBootOptionValidNVVarialbe (Option)) {\r |
196 | //\r | |
197 | // For a temporary boot (i.e. a boot by selected a EFI Shell using "Boot From File"), Boot Current is actually not valid.\r | |
198 | // In this case, "BootCurrent" is not created.\r | |
199 | // Only create the BootCurrent variable when it points to a valid Boot#### variable.\r | |
200 | //\r | |
201 | gRT->SetVariable (\r | |
202 | L"BootCurrent",\r | |
203 | &gEfiGlobalVariableGuid,\r | |
204 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
205 | sizeof (UINT16),\r | |
206 | &Option->BootCurrent\r | |
207 | );\r | |
208 | }\r | |
5c08e117 | 209 | \r |
210 | ASSERT (Option->DevicePath != NULL);\r | |
211 | if ((DevicePathType (Option->DevicePath) == BBS_DEVICE_PATH) &&\r | |
212 | (DevicePathSubType (Option->DevicePath) == BBS_BBS_DP)\r | |
213 | ) {\r | |
214 | //\r | |
215 | // Check to see if we should legacy BOOT. If yes then do the legacy boot\r | |
216 | //\r | |
217 | return BdsLibDoLegacyBoot (Option);\r | |
218 | }\r | |
219 | \r | |
220 | //\r | |
221 | // If the boot option point to Internal FV shell, make sure it is valid\r | |
222 | //\r | |
d46f3632 | 223 | Status = BdsLibUpdateFvFileDevicePath (&DevicePath, PcdGetPtr(PcdShellFile));\r |
5c08e117 | 224 | if (!EFI_ERROR(Status)) {\r |
225 | if (Option->DevicePath != NULL) {\r | |
226 | FreePool(Option->DevicePath);\r | |
227 | }\r | |
228 | Option->DevicePath = AllocateZeroPool (GetDevicePathSize (DevicePath));\r | |
229 | ASSERT(Option->DevicePath != NULL);\r | |
230 | CopyMem (Option->DevicePath, DevicePath, GetDevicePathSize (DevicePath));\r | |
231 | //\r | |
232 | // Update the shell boot option\r | |
233 | //\r | |
234 | InitializeListHead (&TempBootLists);\r | |
235 | BdsLibRegisterNewOption (&TempBootLists, DevicePath, L"EFI Internal Shell", L"BootOrder");\r | |
236 | \r | |
237 | //\r | |
238 | // free the temporary device path created by BdsLibUpdateFvFileDevicePath()\r | |
239 | //\r | |
240 | FreePool (DevicePath); \r | |
241 | DevicePath = Option->DevicePath;\r | |
242 | }\r | |
243 | \r | |
07d97279 LG |
244 | //\r |
245 | // Measure GPT Table by SAP protocol.\r | |
246 | //\r | |
247 | Status = gBS->LocateProtocol (\r | |
248 | &gEfiSecurityArchProtocolGuid,\r | |
249 | NULL,\r | |
454b8ca8 | 250 | (VOID**) &SecurityProtocol\r |
07d97279 LG |
251 | );\r |
252 | if (!EFI_ERROR (Status)) {\r | |
253 | Status = SecurityProtocol->FileAuthenticationState (SecurityProtocol, 0, DevicePath);\r | |
254 | }\r | |
255 | \r | |
5c08e117 | 256 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Booting %S\n", Option->Description));\r |
257 | \r | |
258 | Status = gBS->LoadImage (\r | |
259 | TRUE,\r | |
260 | mBdsImageHandle,\r | |
261 | DevicePath,\r | |
262 | NULL,\r | |
263 | 0,\r | |
264 | &ImageHandle\r | |
265 | );\r | |
266 | \r | |
267 | //\r | |
268 | // If we didn't find an image directly, we need to try as if it is a removable device boot opotion\r | |
269 | // and load the image according to the default boot behavior for removable device.\r | |
270 | //\r | |
271 | if (EFI_ERROR (Status)) {\r | |
272 | //\r | |
273 | // check if there is a bootable removable media could be found in this device path ,\r | |
274 | // and get the bootable media handle\r | |
275 | //\r | |
276 | Handle = BdsLibGetBootableHandle(DevicePath);\r | |
277 | if (Handle == NULL) {\r | |
278 | goto Done;\r | |
279 | }\r | |
280 | //\r | |
281 | // Load the default boot file \EFI\BOOT\boot{machinename}.EFI from removable Media\r | |
282 | // machinename is ia32, ia64, x64, ...\r | |
283 | //\r | |
c62dbf31 | 284 | FilePath = FileDevicePath (Handle, EFI_REMOVABLE_MEDIA_FILE_NAME);\r |
5c08e117 | 285 | if (FilePath != NULL) {\r |
286 | Status = gBS->LoadImage (\r | |
287 | TRUE,\r | |
288 | mBdsImageHandle,\r | |
289 | FilePath,\r | |
290 | NULL,\r | |
291 | 0,\r | |
292 | &ImageHandle\r | |
293 | );\r | |
294 | if (EFI_ERROR (Status)) {\r | |
295 | //\r | |
296 | // The DevicePath failed, and it's not a valid\r | |
297 | // removable media device.\r | |
298 | //\r | |
299 | goto Done;\r | |
300 | }\r | |
301 | }\r | |
302 | }\r | |
303 | \r | |
304 | if (EFI_ERROR (Status)) {\r | |
305 | //\r | |
306 | // It there is any error from the Boot attempt exit now.\r | |
307 | //\r | |
308 | goto Done;\r | |
309 | }\r | |
310 | //\r | |
311 | // Provide the image with it's load options\r | |
312 | //\r | |
313 | Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &ImageInfo);\r | |
314 | ASSERT_EFI_ERROR (Status);\r | |
315 | \r | |
316 | if (Option->LoadOptionsSize != 0) {\r | |
317 | ImageInfo->LoadOptionsSize = Option->LoadOptionsSize;\r | |
318 | ImageInfo->LoadOptions = Option->LoadOptions;\r | |
319 | }\r | |
320 | //\r | |
321 | // Before calling the image, enable the Watchdog Timer for\r | |
322 | // the 5 Minute period\r | |
323 | //\r | |
324 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
325 | \r | |
326 | Status = gBS->StartImage (ImageHandle, ExitDataSize, ExitData);\r | |
327 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Image Return Status = %r\n", Status));\r | |
328 | \r | |
329 | //\r | |
330 | // Clear the Watchdog Timer after the image returns\r | |
331 | //\r | |
332 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
333 | \r | |
334 | Done:\r | |
335 | //\r | |
336 | // Clear Boot Current\r | |
337 | //\r | |
338 | gRT->SetVariable (\r | |
339 | L"BootCurrent",\r | |
340 | &gEfiGlobalVariableGuid,\r | |
341 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
342 | 0,\r | |
343 | &Option->BootCurrent\r | |
344 | );\r | |
345 | \r | |
346 | return Status;\r | |
347 | }\r | |
348 | \r | |
349 | \r | |
350 | /**\r | |
351 | Expand a device path that starts with a hard drive media device path node to be a\r | |
352 | full device path that includes the full hardware path to the device. We need\r | |
353 | to do this so it can be booted. As an optimization the front match (the part point\r | |
354 | to the partition node. E.g. ACPI() /PCI()/ATA()/Partition() ) is saved in a variable\r | |
355 | so a connect all is not required on every boot. All successful history device path\r | |
356 | which point to partition node (the front part) will be saved.\r | |
357 | \r | |
358 | @param HardDriveDevicePath EFI Device Path to boot, if it starts with a hard\r | |
359 | drive media device path.\r | |
360 | @return A Pointer to the full device path or NULL if a valid Hard Drive devic path\r | |
361 | cannot be found.\r | |
362 | \r | |
363 | **/\r | |
364 | EFI_DEVICE_PATH_PROTOCOL *\r | |
365 | EFIAPI\r | |
366 | BdsExpandPartitionPartialDevicePathToFull (\r | |
367 | IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath\r | |
368 | )\r | |
369 | {\r | |
370 | EFI_STATUS Status;\r | |
371 | UINTN BlockIoHandleCount;\r | |
372 | EFI_HANDLE *BlockIoBuffer;\r | |
373 | EFI_DEVICE_PATH_PROTOCOL *FullDevicePath;\r | |
374 | EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath;\r | |
375 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
376 | UINTN Index;\r | |
377 | UINTN InstanceNum;\r | |
378 | EFI_DEVICE_PATH_PROTOCOL *CachedDevicePath;\r | |
379 | EFI_DEVICE_PATH_PROTOCOL *TempNewDevicePath;\r | |
380 | UINTN CachedDevicePathSize;\r | |
381 | BOOLEAN DeviceExist;\r | |
382 | BOOLEAN NeedAdjust;\r | |
383 | EFI_DEVICE_PATH_PROTOCOL *Instance;\r | |
384 | UINTN Size;\r | |
385 | \r | |
386 | FullDevicePath = NULL;\r | |
387 | //\r | |
388 | // Check if there is prestore 'HDDP' variable.\r | |
389 | // If exist, search the front path which point to partition node in the variable instants.\r | |
390 | // If fail to find or 'HDDP' not exist, reconnect all and search in all system\r | |
391 | //\r | |
392 | CachedDevicePath = BdsLibGetVariableAndSize (\r | |
393 | L"HDDP",\r | |
394 | &mHdBootVariablePrivateGuid,\r | |
395 | &CachedDevicePathSize\r | |
396 | );\r | |
397 | \r | |
398 | if (CachedDevicePath != NULL) {\r | |
399 | TempNewDevicePath = CachedDevicePath;\r | |
400 | DeviceExist = FALSE;\r | |
401 | NeedAdjust = FALSE;\r | |
402 | do {\r | |
403 | //\r | |
404 | // Check every instance of the variable\r | |
405 | // First, check whether the instance contain the partition node, which is needed for distinguishing multi\r | |
406 | // partial partition boot option. Second, check whether the instance could be connected.\r | |
407 | //\r | |
408 | Instance = GetNextDevicePathInstance (&TempNewDevicePath, &Size);\r | |
409 | if (MatchPartitionDevicePathNode (Instance, HardDriveDevicePath)) {\r | |
410 | //\r | |
411 | // Connect the device path instance, the device path point to hard drive media device path node\r | |
412 | // e.g. ACPI() /PCI()/ATA()/Partition()\r | |
413 | //\r | |
414 | Status = BdsLibConnectDevicePath (Instance);\r | |
415 | if (!EFI_ERROR (Status)) {\r | |
416 | DeviceExist = TRUE;\r | |
417 | break;\r | |
418 | }\r | |
419 | }\r | |
420 | //\r | |
421 | // Come here means the first instance is not matched\r | |
422 | //\r | |
423 | NeedAdjust = TRUE;\r | |
424 | FreePool(Instance);\r | |
425 | } while (TempNewDevicePath != NULL);\r | |
426 | \r | |
427 | if (DeviceExist) {\r | |
428 | //\r | |
429 | // Find the matched device path.\r | |
430 | // Append the file path information from the boot option and return the fully expanded device path.\r | |
431 | //\r | |
432 | DevicePath = NextDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *) HardDriveDevicePath);\r | |
433 | FullDevicePath = AppendDevicePath (Instance, DevicePath);\r | |
434 | \r | |
435 | //\r | |
436 | // Adjust the 'HDDP' instances sequence if the matched one is not first one.\r | |
437 | //\r | |
438 | if (NeedAdjust) {\r | |
439 | //\r | |
440 | // First delete the matched instance.\r | |
441 | //\r | |
442 | TempNewDevicePath = CachedDevicePath;\r | |
443 | CachedDevicePath = BdsLibDelPartMatchInstance (CachedDevicePath, Instance );\r | |
444 | FreePool (TempNewDevicePath);\r | |
445 | \r | |
446 | //\r | |
447 | // Second, append the remaining path after the matched instance\r | |
448 | //\r | |
449 | TempNewDevicePath = CachedDevicePath;\r | |
450 | CachedDevicePath = AppendDevicePathInstance (Instance, CachedDevicePath );\r | |
451 | FreePool (TempNewDevicePath);\r | |
452 | //\r | |
453 | // Save the matching Device Path so we don't need to do a connect all next time\r | |
454 | //\r | |
455 | Status = gRT->SetVariable (\r | |
456 | L"HDDP",\r | |
457 | &mHdBootVariablePrivateGuid,\r | |
458 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
459 | GetDevicePathSize (CachedDevicePath),\r | |
460 | CachedDevicePath\r | |
461 | );\r | |
462 | }\r | |
463 | \r | |
464 | FreePool (Instance);\r | |
465 | FreePool (CachedDevicePath);\r | |
466 | return FullDevicePath;\r | |
467 | }\r | |
468 | }\r | |
469 | \r | |
470 | //\r | |
471 | // If we get here we fail to find or 'HDDP' not exist, and now we need\r | |
472 | // to search all devices in the system for a matched partition\r | |
473 | //\r | |
474 | BdsLibConnectAllDriversToAllControllers ();\r | |
475 | Status = gBS->LocateHandleBuffer (ByProtocol, &gEfiBlockIoProtocolGuid, NULL, &BlockIoHandleCount, &BlockIoBuffer);\r | |
476 | if (EFI_ERROR (Status) || BlockIoHandleCount == 0 || BlockIoBuffer == NULL) {\r | |
477 | //\r | |
478 | // If there was an error or there are no device handles that support\r | |
479 | // the BLOCK_IO Protocol, then return.\r | |
480 | //\r | |
481 | return NULL;\r | |
482 | }\r | |
483 | //\r | |
484 | // Loop through all the device handles that support the BLOCK_IO Protocol\r | |
485 | //\r | |
486 | for (Index = 0; Index < BlockIoHandleCount; Index++) {\r | |
487 | \r | |
488 | Status = gBS->HandleProtocol (BlockIoBuffer[Index], &gEfiDevicePathProtocolGuid, (VOID *) &BlockIoDevicePath);\r | |
489 | if (EFI_ERROR (Status) || BlockIoDevicePath == NULL) {\r | |
490 | continue;\r | |
491 | }\r | |
492 | \r | |
493 | if (MatchPartitionDevicePathNode (BlockIoDevicePath, HardDriveDevicePath)) {\r | |
494 | //\r | |
495 | // Find the matched partition device path\r | |
496 | //\r | |
497 | DevicePath = NextDevicePathNode ((EFI_DEVICE_PATH_PROTOCOL *) HardDriveDevicePath);\r | |
498 | FullDevicePath = AppendDevicePath (BlockIoDevicePath, DevicePath);\r | |
499 | \r | |
500 | //\r | |
501 | // Save the matched partition device path in 'HDDP' variable\r | |
502 | //\r | |
503 | if (CachedDevicePath != NULL) {\r | |
504 | //\r | |
505 | // Save the matched partition device path as first instance of 'HDDP' variable\r | |
506 | //\r | |
507 | if (BdsLibMatchDevicePaths (CachedDevicePath, BlockIoDevicePath)) {\r | |
508 | TempNewDevicePath = CachedDevicePath;\r | |
509 | CachedDevicePath = BdsLibDelPartMatchInstance (CachedDevicePath, BlockIoDevicePath);\r | |
510 | FreePool(TempNewDevicePath);\r | |
511 | \r | |
512 | TempNewDevicePath = CachedDevicePath;\r | |
513 | CachedDevicePath = AppendDevicePathInstance (BlockIoDevicePath, CachedDevicePath);\r | |
514 | FreePool(TempNewDevicePath);\r | |
515 | } else {\r | |
516 | TempNewDevicePath = CachedDevicePath;\r | |
517 | CachedDevicePath = AppendDevicePathInstance (BlockIoDevicePath, CachedDevicePath);\r | |
518 | FreePool(TempNewDevicePath);\r | |
519 | }\r | |
520 | //\r | |
521 | // Here limit the device path instance number to 12, which is max number for a system support 3 IDE controller\r | |
522 | // If the user try to boot many OS in different HDs or partitions, in theory, the 'HDDP' variable maybe become larger and larger.\r | |
523 | //\r | |
524 | InstanceNum = 0;\r | |
525 | ASSERT (CachedDevicePath != NULL);\r | |
526 | TempNewDevicePath = CachedDevicePath;\r | |
527 | while (!IsDevicePathEnd (TempNewDevicePath)) {\r | |
528 | TempNewDevicePath = NextDevicePathNode (TempNewDevicePath);\r | |
529 | //\r | |
530 | // Parse one instance\r | |
531 | //\r | |
532 | while (!IsDevicePathEndType (TempNewDevicePath)) {\r | |
533 | TempNewDevicePath = NextDevicePathNode (TempNewDevicePath);\r | |
534 | }\r | |
535 | InstanceNum++;\r | |
536 | //\r | |
537 | // If the CachedDevicePath variable contain too much instance, only remain 12 instances.\r | |
538 | //\r | |
539 | if (InstanceNum >= 12) {\r | |
540 | SetDevicePathEndNode (TempNewDevicePath);\r | |
541 | break;\r | |
542 | }\r | |
543 | }\r | |
544 | } else {\r | |
545 | CachedDevicePath = DuplicateDevicePath (BlockIoDevicePath);\r | |
546 | }\r | |
547 | \r | |
548 | //\r | |
549 | // Save the matching Device Path so we don't need to do a connect all next time\r | |
550 | //\r | |
551 | Status = gRT->SetVariable (\r | |
552 | L"HDDP",\r | |
553 | &mHdBootVariablePrivateGuid,\r | |
554 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
555 | GetDevicePathSize (CachedDevicePath),\r | |
556 | CachedDevicePath\r | |
557 | );\r | |
558 | \r | |
559 | break;\r | |
560 | }\r | |
561 | }\r | |
562 | \r | |
563 | FreePool (CachedDevicePath);\r | |
564 | if (BlockIoBuffer != NULL) {\r | |
565 | FreePool (BlockIoBuffer);\r | |
566 | }\r | |
567 | return FullDevicePath;\r | |
568 | }\r | |
569 | \r | |
570 | /**\r | |
571 | Check whether there is a instance in BlockIoDevicePath, which contain multi device path\r | |
572 | instances, has the same partition node with HardDriveDevicePath device path\r | |
573 | \r | |
574 | @param BlockIoDevicePath Multi device path instances which need to check\r | |
575 | @param HardDriveDevicePath A device path which starts with a hard drive media\r | |
576 | device path.\r | |
577 | \r | |
578 | @retval TRUE There is a matched device path instance.\r | |
579 | @retval FALSE There is no matched device path instance.\r | |
580 | \r | |
581 | **/\r | |
582 | BOOLEAN\r | |
583 | EFIAPI\r | |
584 | MatchPartitionDevicePathNode (\r | |
585 | IN EFI_DEVICE_PATH_PROTOCOL *BlockIoDevicePath,\r | |
586 | IN HARDDRIVE_DEVICE_PATH *HardDriveDevicePath\r | |
587 | )\r | |
588 | {\r | |
589 | HARDDRIVE_DEVICE_PATH *TmpHdPath;\r | |
590 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
591 | BOOLEAN Match;\r | |
592 | EFI_DEVICE_PATH_PROTOCOL *BlockIoHdDevicePathNode;\r | |
593 | \r | |
594 | if ((BlockIoDevicePath == NULL) || (HardDriveDevicePath == NULL)) {\r | |
595 | return FALSE;\r | |
596 | }\r | |
597 | \r | |
598 | //\r | |
599 | // Make PreviousDevicePath == the device path node before the end node\r | |
600 | //\r | |
601 | DevicePath = BlockIoDevicePath;\r | |
602 | BlockIoHdDevicePathNode = NULL;\r | |
603 | \r | |
604 | //\r | |
605 | // find the partition device path node\r | |
606 | //\r | |
607 | while (!IsDevicePathEnd (DevicePath)) {\r | |
608 | if ((DevicePathType (DevicePath) == MEDIA_DEVICE_PATH) &&\r | |
609 | (DevicePathSubType (DevicePath) == MEDIA_HARDDRIVE_DP)\r | |
610 | ) {\r | |
611 | BlockIoHdDevicePathNode = DevicePath;\r | |
612 | break;\r | |
613 | }\r | |
614 | \r | |
615 | DevicePath = NextDevicePathNode (DevicePath);\r | |
616 | }\r | |
617 | \r | |
618 | if (BlockIoHdDevicePathNode == NULL) {\r | |
619 | return FALSE;\r | |
620 | }\r | |
621 | //\r | |
622 | // See if the harddrive device path in blockio matches the orig Hard Drive Node\r | |
623 | //\r | |
624 | TmpHdPath = (HARDDRIVE_DEVICE_PATH *) BlockIoHdDevicePathNode;\r | |
625 | Match = FALSE;\r | |
626 | \r | |
627 | //\r | |
628 | // Check for the match\r | |
629 | //\r | |
630 | if ((TmpHdPath->MBRType == HardDriveDevicePath->MBRType) &&\r | |
631 | (TmpHdPath->SignatureType == HardDriveDevicePath->SignatureType)) {\r | |
632 | switch (TmpHdPath->SignatureType) {\r | |
633 | case SIGNATURE_TYPE_GUID:\r | |
634 | Match = CompareGuid ((EFI_GUID *)TmpHdPath->Signature, (EFI_GUID *)HardDriveDevicePath->Signature);\r | |
635 | break;\r | |
636 | case SIGNATURE_TYPE_MBR:\r | |
637 | Match = (BOOLEAN)(*((UINT32 *)(&(TmpHdPath->Signature[0]))) == ReadUnaligned32((UINT32 *)(&(HardDriveDevicePath->Signature[0]))));\r | |
638 | break;\r | |
639 | default:\r | |
640 | Match = FALSE;\r | |
641 | break;\r | |
642 | }\r | |
643 | }\r | |
644 | \r | |
645 | return Match;\r | |
646 | }\r | |
647 | \r | |
648 | /**\r | |
649 | Delete the boot option associated with the handle passed in.\r | |
650 | \r | |
651 | @param Handle The handle which present the device path to create\r | |
652 | boot option\r | |
653 | \r | |
654 | @retval EFI_SUCCESS Delete the boot option success\r | |
655 | @retval EFI_NOT_FOUND If the Device Path is not found in the system\r | |
656 | @retval EFI_OUT_OF_RESOURCES Lack of memory resource\r | |
657 | @retval Other Error return value from SetVariable()\r | |
658 | \r | |
659 | **/\r | |
660 | EFI_STATUS\r | |
661 | BdsLibDeleteOptionFromHandle (\r | |
662 | IN EFI_HANDLE Handle\r | |
663 | )\r | |
664 | {\r | |
665 | UINT16 *BootOrder;\r | |
666 | UINT8 *BootOptionVar;\r | |
667 | UINTN BootOrderSize;\r | |
668 | UINTN BootOptionSize;\r | |
669 | EFI_STATUS Status;\r | |
670 | UINTN Index;\r | |
671 | UINT16 BootOption[BOOT_OPTION_MAX_CHAR];\r | |
672 | UINTN DevicePathSize;\r | |
673 | UINTN OptionDevicePathSize;\r | |
674 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
675 | EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;\r | |
676 | UINT8 *TempPtr;\r | |
677 | \r | |
678 | Status = EFI_SUCCESS;\r | |
679 | BootOrder = NULL;\r | |
680 | BootOrderSize = 0;\r | |
681 | \r | |
682 | //\r | |
683 | // Check "BootOrder" variable, if no, means there is no any boot order.\r | |
684 | //\r | |
685 | BootOrder = BdsLibGetVariableAndSize (\r | |
686 | L"BootOrder",\r | |
687 | &gEfiGlobalVariableGuid,\r | |
688 | &BootOrderSize\r | |
689 | );\r | |
690 | if (BootOrder == NULL) {\r | |
691 | return EFI_NOT_FOUND;\r | |
692 | }\r | |
693 | \r | |
694 | //\r | |
695 | // Convert device handle to device path protocol instance\r | |
696 | //\r | |
697 | DevicePath = DevicePathFromHandle (Handle);\r | |
698 | if (DevicePath == NULL) {\r | |
699 | return EFI_NOT_FOUND;\r | |
700 | }\r | |
701 | DevicePathSize = GetDevicePathSize (DevicePath);\r | |
702 | \r | |
703 | //\r | |
704 | // Loop all boot order variable and find the matching device path\r | |
705 | //\r | |
706 | Index = 0;\r | |
707 | while (Index < BootOrderSize / sizeof (UINT16)) {\r | |
708 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r | |
709 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
710 | BootOption,\r | |
711 | &gEfiGlobalVariableGuid,\r | |
712 | &BootOptionSize\r | |
713 | );\r | |
714 | \r | |
715 | if (BootOptionVar == NULL) {\r | |
716 | FreePool (BootOrder);\r | |
717 | return EFI_OUT_OF_RESOURCES;\r | |
718 | }\r | |
719 | \r | |
720 | TempPtr = BootOptionVar;\r | |
721 | TempPtr += sizeof (UINT32) + sizeof (UINT16);\r | |
722 | TempPtr += StrSize ((CHAR16 *) TempPtr);\r | |
723 | OptionDevicePath = (EFI_DEVICE_PATH_PROTOCOL *) TempPtr;\r | |
724 | OptionDevicePathSize = GetDevicePathSize (OptionDevicePath);\r | |
725 | \r | |
726 | //\r | |
727 | // Check whether the device path match\r | |
728 | //\r | |
729 | if ((OptionDevicePathSize == DevicePathSize) &&\r | |
730 | (CompareMem (DevicePath, OptionDevicePath, DevicePathSize) == 0)) {\r | |
731 | BdsDeleteBootOption (BootOrder[Index], BootOrder, &BootOrderSize);\r | |
732 | FreePool (BootOptionVar);\r | |
733 | break;\r | |
734 | }\r | |
735 | \r | |
736 | FreePool (BootOptionVar);\r | |
737 | Index++;\r | |
738 | }\r | |
739 | \r | |
740 | //\r | |
741 | // Adjust number of boot option for "BootOrder" variable.\r | |
742 | //\r | |
743 | Status = gRT->SetVariable (\r | |
744 | L"BootOrder",\r | |
745 | &gEfiGlobalVariableGuid,\r | |
746 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
747 | BootOrderSize,\r | |
748 | BootOrder\r | |
749 | );\r | |
750 | \r | |
751 | FreePool (BootOrder);\r | |
752 | \r | |
753 | return Status;\r | |
754 | }\r | |
755 | \r | |
756 | \r | |
757 | /**\r | |
3384a9bc | 758 | Delete all invalid EFI boot options.\r |
5c08e117 | 759 | \r |
760 | @retval EFI_SUCCESS Delete all invalid boot option success\r | |
761 | @retval EFI_NOT_FOUND Variable "BootOrder" is not found\r | |
762 | @retval EFI_OUT_OF_RESOURCES Lack of memory resource\r | |
763 | @retval Other Error return value from SetVariable()\r | |
764 | \r | |
765 | **/\r | |
766 | EFI_STATUS\r | |
767 | BdsDeleteAllInvalidEfiBootOption (\r | |
768 | VOID\r | |
769 | )\r | |
770 | {\r | |
771 | UINT16 *BootOrder;\r | |
772 | UINT8 *BootOptionVar;\r | |
773 | UINTN BootOrderSize;\r | |
774 | UINTN BootOptionSize;\r | |
775 | EFI_STATUS Status;\r | |
776 | UINTN Index;\r | |
777 | UINTN Index2;\r | |
778 | UINT16 BootOption[BOOT_OPTION_MAX_CHAR];\r | |
779 | EFI_DEVICE_PATH_PROTOCOL *OptionDevicePath;\r | |
780 | UINT8 *TempPtr;\r | |
3384a9bc | 781 | CHAR16 *Description;\r |
5c08e117 | 782 | \r |
783 | Status = EFI_SUCCESS;\r | |
784 | BootOrder = NULL;\r | |
785 | BootOrderSize = 0;\r | |
786 | \r | |
787 | //\r | |
788 | // Check "BootOrder" variable firstly, this variable hold the number of boot options\r | |
789 | //\r | |
790 | BootOrder = BdsLibGetVariableAndSize (\r | |
791 | L"BootOrder",\r | |
792 | &gEfiGlobalVariableGuid,\r | |
793 | &BootOrderSize\r | |
794 | );\r | |
795 | if (NULL == BootOrder) {\r | |
796 | return EFI_NOT_FOUND;\r | |
797 | }\r | |
798 | \r | |
799 | Index = 0;\r | |
800 | while (Index < BootOrderSize / sizeof (UINT16)) {\r | |
801 | UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", BootOrder[Index]);\r | |
802 | BootOptionVar = BdsLibGetVariableAndSize (\r | |
803 | BootOption,\r | |
804 | &gEfiGlobalVariableGuid,\r | |
805 | &BootOptionSize\r | |
806 | );\r | |
807 | if (NULL == BootOptionVar) {\r | |
808 | FreePool (BootOrder);\r | |
809 | return EFI_OUT_OF_RESOURCES;\r | |
810 | }\r | |
811 | \r | |
812 | TempPtr = BootOptionVar;\r | |
813 | TempPtr += sizeof (UINT32) + sizeof (UINT16);\r | |
3384a9bc | 814 | Description = (CHAR16 *) TempPtr;\r |
5c08e117 | 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 | |
3384a9bc | 828 | if (!BdsLibIsValidEFIBootOptDevicePathExt (OptionDevicePath, FALSE, Description)) {\r |
5c08e117 | 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 | |
3384a9bc | 874 | For EFI boot option, BDS separate them as six types:\r |
875 | 1. Network - The boot option points to the SimpleNetworkProtocol device. \r | |
876 | Bds will try to automatically create this type boot option when enumerate.\r | |
877 | 2. Shell - The boot option points to internal flash shell. \r | |
878 | Bds will try to automatically create this type boot option when enumerate.\r | |
879 | 3. Removable BlockIo - The boot option only points to the removable media\r | |
880 | device, like USB flash disk, DVD, Floppy etc.\r | |
881 | These device should contain a *removable* blockIo\r | |
882 | protocol in their device handle.\r | |
883 | Bds will try to automatically create this type boot option \r | |
884 | when enumerate.\r | |
885 | 4. Fixed BlockIo - The boot option only points to a Fixed blockIo device, \r | |
886 | like HardDisk.\r | |
887 | These device should contain a *fixed* blockIo\r | |
888 | protocol in their device handle.\r | |
889 | BDS will skip fixed blockIo devices, and NOT\r | |
890 | automatically create boot option for them. But BDS \r | |
891 | will help to delete those fixed blockIo boot option, \r | |
892 | whose description rule conflict with other auto-created\r | |
893 | boot options.\r | |
894 | 5. Non-BlockIo Simplefile - The boot option points to a device whose handle \r | |
895 | has SimpleFileSystem Protocol, but has no blockio\r | |
896 | protocol. These devices do not offer blockIo\r | |
897 | protocol, but BDS still can get the \r | |
898 | \EFI\BOOT\boot{machinename}.EFI by SimpleFileSystem\r | |
899 | Protocol.\r | |
900 | 6. File - The boot option points to a file. These boot options are usually \r | |
901 | created by user manually or OS loader. BDS will not delete or modify\r | |
902 | these boot options. \r | |
903 | \r | |
904 | This function will enumerate all possible boot device in the system, and\r | |
905 | automatically create boot options for Network, Shell, Removable BlockIo, \r | |
906 | and Non-BlockIo Simplefile devices.\r | |
8d3b5aff | 907 | It will only execute once of every boot.\r |
3384a9bc | 908 | \r |
5c08e117 | 909 | @param BdsBootOptionList The header of the link list which indexed all\r |
910 | current boot options\r | |
911 | \r | |
912 | @retval EFI_SUCCESS Finished all the boot device enumerate and create\r | |
913 | the boot option base on that boot device\r | |
914 | \r | |
e83c9064 | 915 | @retval EFI_OUT_OF_RESOURCES Failed to enumerate the boot device and create the boot option list\r |
5c08e117 | 916 | **/\r |
917 | EFI_STATUS\r | |
918 | EFIAPI\r | |
919 | BdsLibEnumerateAllBootOption (\r | |
920 | IN OUT LIST_ENTRY *BdsBootOptionList\r | |
921 | )\r | |
922 | {\r | |
923 | EFI_STATUS Status;\r | |
924 | UINT16 FloppyNumber;\r | |
925 | UINT16 CdromNumber;\r | |
926 | UINT16 UsbNumber;\r | |
927 | UINT16 MiscNumber;\r | |
8d3b5aff | 928 | UINT16 ScsiNumber;\r |
5c08e117 | 929 | UINT16 NonBlockNumber;\r |
930 | UINTN NumberBlockIoHandles;\r | |
931 | EFI_HANDLE *BlockIoHandles;\r | |
932 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
933 | UINTN Index;\r | |
934 | UINTN NumberSimpleNetworkHandles;\r | |
935 | EFI_HANDLE *SimpleNetworkHandles;\r | |
936 | UINTN FvHandleCount;\r | |
937 | EFI_HANDLE *FvHandleBuffer;\r | |
938 | EFI_FV_FILETYPE Type;\r | |
939 | UINTN Size;\r | |
940 | EFI_FV_FILE_ATTRIBUTES Attributes;\r | |
941 | UINT32 AuthenticationStatus;\r | |
8d3b5aff | 942 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r |
943 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
5c08e117 | 944 | UINTN DevicePathType;\r |
945 | CHAR16 Buffer[40];\r | |
946 | EFI_HANDLE *FileSystemHandles;\r | |
947 | UINTN NumberFileSystemHandles;\r | |
948 | BOOLEAN NeedDelete;\r | |
949 | EFI_IMAGE_DOS_HEADER DosHeader;\r | |
950 | EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;\r | |
951 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
952 | \r | |
953 | FloppyNumber = 0;\r | |
954 | CdromNumber = 0;\r | |
955 | UsbNumber = 0;\r | |
956 | MiscNumber = 0;\r | |
8d3b5aff | 957 | ScsiNumber = 0;\r |
5c08e117 | 958 | ZeroMem (Buffer, sizeof (Buffer));\r |
959 | \r | |
960 | //\r | |
961 | // If the boot device enumerate happened, just get the boot\r | |
962 | // device from the boot order variable\r | |
963 | //\r | |
964 | if (mEnumBootDevice) {\r | |
e83c9064 LG |
965 | Status = BdsLibBuildOptionFromVar (BdsBootOptionList, L"BootOrder");\r |
966 | return Status;\r | |
5c08e117 | 967 | }\r |
968 | \r | |
969 | //\r | |
970 | // Notes: this dirty code is to get the legacy boot option from the\r | |
971 | // BBS table and create to variable as the EFI boot option, it should\r | |
972 | // be removed after the CSM can provide legacy boot option directly\r | |
973 | //\r | |
974 | REFRESH_LEGACY_BOOT_OPTIONS;\r | |
975 | \r | |
976 | //\r | |
977 | // Delete invalid boot option\r | |
978 | //\r | |
979 | BdsDeleteAllInvalidEfiBootOption ();\r | |
980 | \r | |
981 | //\r | |
982 | // Parse removable media\r | |
983 | //\r | |
984 | gBS->LocateHandleBuffer (\r | |
985 | ByProtocol,\r | |
986 | &gEfiBlockIoProtocolGuid,\r | |
987 | NULL,\r | |
988 | &NumberBlockIoHandles,\r | |
989 | &BlockIoHandles\r | |
990 | );\r | |
991 | \r | |
992 | for (Index = 0; Index < NumberBlockIoHandles; Index++) {\r | |
993 | Status = gBS->HandleProtocol (\r | |
994 | BlockIoHandles[Index],\r | |
995 | &gEfiBlockIoProtocolGuid,\r | |
996 | (VOID **) &BlkIo\r | |
997 | );\r | |
998 | if (!EFI_ERROR (Status)) {\r | |
999 | if (!BlkIo->Media->RemovableMedia) {\r | |
1000 | //\r | |
1001 | // skip the non-removable block devices\r | |
1002 | //\r | |
1003 | continue;\r | |
1004 | }\r | |
1005 | }\r | |
1006 | DevicePath = DevicePathFromHandle (BlockIoHandles[Index]);\r | |
1007 | DevicePathType = BdsGetBootTypeFromDevicePath (DevicePath);\r | |
1008 | \r | |
1009 | switch (DevicePathType) {\r | |
1010 | case BDS_EFI_ACPI_FLOPPY_BOOT:\r | |
429cac9c | 1011 | UnicodeSPrint (Buffer, sizeof (Buffer), L"%d", FloppyNumber); \r |
5c08e117 | 1012 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r |
1013 | FloppyNumber++;\r | |
1014 | break;\r | |
3384a9bc | 1015 | \r |
1016 | //\r | |
1017 | // Assume a removable SATA device should be the DVD/CD device\r | |
1018 | //\r | |
5c08e117 | 1019 | case BDS_EFI_MESSAGE_ATAPI_BOOT:\r |
3384a9bc | 1020 | case BDS_EFI_MESSAGE_SATA_BOOT:\r |
429cac9c | 1021 | UnicodeSPrint (Buffer, sizeof (Buffer), L"%d", CdromNumber);\r |
5c08e117 | 1022 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r |
1023 | CdromNumber++;\r | |
1024 | break;\r | |
1025 | \r | |
1026 | case BDS_EFI_MESSAGE_USB_DEVICE_BOOT:\r | |
429cac9c | 1027 | UnicodeSPrint (Buffer, sizeof (Buffer), L"%d", UsbNumber);\r |
5c08e117 | 1028 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer);\r |
1029 | UsbNumber++;\r | |
1030 | break;\r | |
1031 | \r | |
1032 | case BDS_EFI_MESSAGE_SCSI_BOOT:\r | |
429cac9c | 1033 | UnicodeSPrint (Buffer, sizeof (Buffer), L"%d", ScsiNumber);\r |
8d3b5aff | 1034 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer); \r |
1035 | ScsiNumber++;\r | |
5c08e117 | 1036 | break;\r |
1037 | \r | |
1038 | case BDS_EFI_MESSAGE_MISC_BOOT:\r | |
429cac9c | 1039 | UnicodeSPrint (Buffer, sizeof (Buffer), L"%d", MiscNumber);\r |
8d3b5aff | 1040 | BdsLibBuildOptionFromHandle (BlockIoHandles[Index], BdsBootOptionList, Buffer); \r |
5c08e117 | 1041 | MiscNumber++;\r |
1042 | break;\r | |
1043 | \r | |
1044 | default:\r | |
1045 | break;\r | |
1046 | }\r | |
1047 | }\r | |
1048 | \r | |
1049 | if (NumberBlockIoHandles != 0) {\r | |
1050 | FreePool (BlockIoHandles);\r | |
1051 | }\r | |
1052 | \r | |
1053 | //\r | |
1054 | // If there is simple file protocol which does not consume block Io protocol, create a boot option for it here.\r | |
1055 | //\r | |
1056 | NonBlockNumber = 0;\r | |
1057 | gBS->LocateHandleBuffer (\r | |
1058 | ByProtocol,\r | |
1059 | &gEfiSimpleFileSystemProtocolGuid,\r | |
1060 | NULL,\r | |
1061 | &NumberFileSystemHandles,\r | |
1062 | &FileSystemHandles\r | |
1063 | );\r | |
1064 | for (Index = 0; Index < NumberFileSystemHandles; Index++) {\r | |
1065 | Status = gBS->HandleProtocol (\r | |
1066 | FileSystemHandles[Index],\r | |
1067 | &gEfiBlockIoProtocolGuid,\r | |
1068 | (VOID **) &BlkIo\r | |
1069 | );\r | |
1070 | if (!EFI_ERROR (Status)) {\r | |
1071 | //\r | |
1072 | // Skip if the file system handle supports a BlkIo protocol,\r | |
1073 | //\r | |
1074 | continue;\r | |
1075 | }\r | |
1076 | \r | |
1077 | //\r | |
1078 | // Do the removable Media thing. \EFI\BOOT\boot{machinename}.EFI\r | |
1079 | // machinename is ia32, ia64, x64, ...\r | |
1080 | //\r | |
1081 | Hdr.Union = &HdrData;\r | |
1082 | NeedDelete = TRUE;\r | |
1083 | Status = BdsLibGetImageHeader (\r | |
1084 | FileSystemHandles[Index],\r | |
c62dbf31 | 1085 | EFI_REMOVABLE_MEDIA_FILE_NAME,\r |
5c08e117 | 1086 | &DosHeader,\r |
1087 | Hdr\r | |
1088 | );\r | |
1089 | if (!EFI_ERROR (Status) &&\r | |
1090 | EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Hdr.Pe32->FileHeader.Machine) &&\r | |
1091 | Hdr.Pe32->OptionalHeader.Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {\r | |
1092 | NeedDelete = FALSE;\r | |
1093 | }\r | |
1094 | \r | |
1095 | if (NeedDelete) {\r | |
1096 | //\r | |
1097 | // No such file or the file is not a EFI application, delete this boot option\r | |
1098 | //\r | |
1099 | BdsLibDeleteOptionFromHandle (FileSystemHandles[Index]);\r | |
1100 | } else {\r | |
429cac9c | 1101 | UnicodeSPrint (Buffer, sizeof (Buffer), L"EFI Non-Block Boot Device %d", NonBlockNumber);\r |
5c08e117 | 1102 | BdsLibBuildOptionFromHandle (FileSystemHandles[Index], BdsBootOptionList, Buffer);\r |
1103 | NonBlockNumber++;\r | |
1104 | }\r | |
1105 | }\r | |
1106 | \r | |
1107 | if (NumberFileSystemHandles != 0) {\r | |
1108 | FreePool (FileSystemHandles);\r | |
1109 | }\r | |
1110 | \r | |
1111 | //\r | |
1112 | // Parse Network Boot Device\r | |
1113 | //\r | |
1114 | gBS->LocateHandleBuffer (\r | |
1115 | ByProtocol,\r | |
1116 | &gEfiSimpleNetworkProtocolGuid,\r | |
1117 | NULL,\r | |
1118 | &NumberSimpleNetworkHandles,\r | |
1119 | &SimpleNetworkHandles\r | |
1120 | );\r | |
8d3b5aff | 1121 | \r |
5c08e117 | 1122 | for (Index = 0; Index < NumberSimpleNetworkHandles; Index++) {\r |
429cac9c | 1123 | UnicodeSPrint (Buffer, sizeof (Buffer), L"%d", Index);\r |
5c08e117 | 1124 | BdsLibBuildOptionFromHandle (SimpleNetworkHandles[Index], BdsBootOptionList, Buffer);\r |
1125 | }\r | |
1126 | \r | |
1127 | if (NumberSimpleNetworkHandles != 0) {\r | |
1128 | FreePool (SimpleNetworkHandles);\r | |
1129 | }\r | |
1130 | \r | |
1131 | //\r | |
1132 | // Check if we have on flash shell\r | |
1133 | //\r | |
1134 | gBS->LocateHandleBuffer (\r | |
1135 | ByProtocol,\r | |
1136 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1137 | NULL,\r | |
1138 | &FvHandleCount,\r | |
1139 | &FvHandleBuffer\r | |
1140 | );\r | |
1141 | for (Index = 0; Index < FvHandleCount; Index++) {\r | |
5c08e117 | 1142 | gBS->HandleProtocol (\r |
1143 | FvHandleBuffer[Index],\r | |
1144 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1145 | (VOID **) &Fv\r | |
1146 | );\r | |
1147 | \r | |
1148 | Status = Fv->ReadFile (\r | |
1149 | Fv,\r | |
d46f3632 | 1150 | PcdGetPtr(PcdShellFile),\r |
5c08e117 | 1151 | NULL,\r |
1152 | &Size,\r | |
1153 | &Type,\r | |
1154 | &Attributes,\r | |
1155 | &AuthenticationStatus\r | |
1156 | );\r | |
1157 | if (EFI_ERROR (Status)) {\r | |
1158 | //\r | |
1159 | // Skip if no shell file in the FV\r | |
1160 | //\r | |
1161 | continue;\r | |
1162 | }\r | |
1163 | //\r | |
1164 | // Build the shell boot option\r | |
1165 | //\r | |
1166 | BdsLibBuildOptionFromShell (FvHandleBuffer[Index], BdsBootOptionList);\r | |
1167 | }\r | |
1168 | \r | |
1169 | if (FvHandleCount != 0) {\r | |
1170 | FreePool (FvHandleBuffer);\r | |
1171 | }\r | |
1172 | //\r | |
1173 | // Make sure every boot only have one time\r | |
1174 | // boot device enumerate\r | |
1175 | //\r | |
e83c9064 | 1176 | Status = BdsLibBuildOptionFromVar (BdsBootOptionList, L"BootOrder");\r |
5c08e117 | 1177 | mEnumBootDevice = TRUE;\r |
1178 | \r | |
e83c9064 | 1179 | return Status;\r |
5c08e117 | 1180 | }\r |
1181 | \r | |
1182 | /**\r | |
1183 | Build the boot option with the handle parsed in\r | |
1184 | \r | |
1185 | @param Handle The handle which present the device path to create\r | |
1186 | boot option\r | |
1187 | @param BdsBootOptionList The header of the link list which indexed all\r | |
1188 | current boot options\r | |
1189 | @param String The description of the boot option.\r | |
1190 | \r | |
1191 | **/\r | |
1192 | VOID\r | |
1193 | EFIAPI\r | |
1194 | BdsLibBuildOptionFromHandle (\r | |
1195 | IN EFI_HANDLE Handle,\r | |
1196 | IN LIST_ENTRY *BdsBootOptionList,\r | |
1197 | IN CHAR16 *String\r | |
1198 | )\r | |
1199 | {\r | |
1200 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
429cac9c | 1201 | \r |
8d3b5aff | 1202 | DevicePath = DevicePathFromHandle (Handle);\r |
5c08e117 | 1203 | \r |
1204 | //\r | |
1205 | // Create and register new boot option\r | |
1206 | //\r | |
1207 | BdsLibRegisterNewOption (BdsBootOptionList, DevicePath, String, L"BootOrder");\r | |
1208 | }\r | |
1209 | \r | |
1210 | \r | |
1211 | /**\r | |
1212 | Build the on flash shell boot option with the handle parsed in.\r | |
1213 | \r | |
1214 | @param Handle The handle which present the device path to create\r | |
1215 | on flash shell boot option\r | |
1216 | @param BdsBootOptionList The header of the link list which indexed all\r | |
1217 | current boot options\r | |
1218 | \r | |
1219 | **/\r | |
1220 | VOID\r | |
1221 | EFIAPI\r | |
1222 | BdsLibBuildOptionFromShell (\r | |
1223 | IN EFI_HANDLE Handle,\r | |
1224 | IN OUT LIST_ENTRY *BdsBootOptionList\r | |
1225 | )\r | |
1226 | {\r | |
1227 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
1228 | MEDIA_FW_VOL_FILEPATH_DEVICE_PATH ShellNode;\r | |
1229 | \r | |
1230 | DevicePath = DevicePathFromHandle (Handle);\r | |
1231 | \r | |
1232 | //\r | |
1233 | // Build the shell device path\r | |
1234 | //\r | |
d46f3632 | 1235 | EfiInitializeFwVolDevicepathNode (&ShellNode, PcdGetPtr(PcdShellFile));\r |
5c08e117 | 1236 | \r |
1237 | DevicePath = AppendDevicePathNode (DevicePath, (EFI_DEVICE_PATH_PROTOCOL *) &ShellNode);\r | |
1238 | \r | |
1239 | //\r | |
1240 | // Create and register the shell boot option\r | |
1241 | //\r | |
1242 | BdsLibRegisterNewOption (BdsBootOptionList, DevicePath, L"EFI Internal Shell", L"BootOrder");\r | |
1243 | \r | |
1244 | }\r | |
1245 | \r | |
1246 | /**\r | |
1247 | Boot from the UEFI spec defined "BootNext" variable.\r | |
1248 | \r | |
1249 | **/\r | |
1250 | VOID\r | |
1251 | EFIAPI\r | |
1252 | BdsLibBootNext (\r | |
1253 | VOID\r | |
1254 | )\r | |
1255 | {\r | |
1256 | UINT16 *BootNext;\r | |
1257 | UINTN BootNextSize;\r | |
1258 | CHAR16 Buffer[20];\r | |
1259 | BDS_COMMON_OPTION *BootOption;\r | |
1260 | LIST_ENTRY TempList;\r | |
1261 | UINTN ExitDataSize;\r | |
1262 | CHAR16 *ExitData;\r | |
1263 | \r | |
1264 | //\r | |
1265 | // Init the boot option name buffer and temp link list\r | |
1266 | //\r | |
1267 | InitializeListHead (&TempList);\r | |
1268 | ZeroMem (Buffer, sizeof (Buffer));\r | |
1269 | \r | |
1270 | BootNext = BdsLibGetVariableAndSize (\r | |
1271 | L"BootNext",\r | |
1272 | &gEfiGlobalVariableGuid,\r | |
1273 | &BootNextSize\r | |
1274 | );\r | |
1275 | \r | |
1276 | //\r | |
1277 | // Clear the boot next variable first\r | |
1278 | //\r | |
1279 | if (BootNext != NULL) {\r | |
1280 | gRT->SetVariable (\r | |
1281 | L"BootNext",\r | |
1282 | &gEfiGlobalVariableGuid,\r | |
1283 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
1284 | 0,\r | |
1285 | BootNext\r | |
1286 | );\r | |
1287 | \r | |
1288 | //\r | |
1289 | // Start to build the boot option and try to boot\r | |
1290 | //\r | |
1291 | UnicodeSPrint (Buffer, sizeof (Buffer), L"Boot%04x", *BootNext);\r | |
1292 | BootOption = BdsLibVariableToOption (&TempList, Buffer);\r | |
1293 | ASSERT (BootOption != NULL);\r | |
1294 | BdsLibConnectDevicePath (BootOption->DevicePath);\r | |
1295 | BdsLibBootViaBootOption (BootOption, BootOption->DevicePath, &ExitDataSize, &ExitData);\r | |
1296 | }\r | |
1297 | \r | |
1298 | }\r | |
1299 | \r | |
1300 | /**\r | |
1301 | Return the bootable media handle.\r | |
1302 | First, check the device is connected\r | |
1303 | Second, check whether the device path point to a device which support SimpleFileSystemProtocol,\r | |
1304 | Third, detect the the default boot file in the Media, and return the removable Media handle.\r | |
1305 | \r | |
e83c9064 | 1306 | @param DevicePath Device Path to a bootable device\r |
5c08e117 | 1307 | \r |
e83c9064 | 1308 | @return The bootable media handle. If the media on the DevicePath is not bootable, NULL will return.\r |
5c08e117 | 1309 | \r |
1310 | **/\r | |
1311 | EFI_HANDLE\r | |
1312 | EFIAPI\r | |
1313 | BdsLibGetBootableHandle (\r | |
1314 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1315 | )\r | |
1316 | {\r | |
1317 | EFI_STATUS Status;\r | |
1318 | EFI_DEVICE_PATH_PROTOCOL *UpdatedDevicePath;\r | |
1319 | EFI_DEVICE_PATH_PROTOCOL *DupDevicePath;\r | |
1320 | EFI_HANDLE Handle;\r | |
1321 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
1322 | VOID *Buffer;\r | |
1323 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1324 | UINTN Size;\r | |
1325 | UINTN TempSize;\r | |
1326 | EFI_HANDLE ReturnHandle;\r | |
1327 | EFI_HANDLE *SimpleFileSystemHandles;\r | |
1328 | \r | |
1329 | UINTN NumberSimpleFileSystemHandles;\r | |
1330 | UINTN Index;\r | |
1331 | EFI_IMAGE_DOS_HEADER DosHeader;\r | |
1332 | EFI_IMAGE_OPTIONAL_HEADER_UNION HdrData;\r | |
1333 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
1334 | \r | |
1335 | UpdatedDevicePath = DevicePath;\r | |
1336 | \r | |
1337 | //\r | |
1338 | // Check whether the device is connected\r | |
1339 | //\r | |
1340 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1341 | if (EFI_ERROR (Status)) {\r | |
1342 | //\r | |
1343 | // Skip the case that the boot option point to a simple file protocol which does not consume block Io protocol,\r | |
1344 | //\r | |
1345 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1346 | if (EFI_ERROR (Status)) {\r | |
1347 | //\r | |
1348 | // Fail to find the proper BlockIo and simple file protocol, maybe because device not present, we need to connect it firstly\r | |
1349 | //\r | |
1350 | UpdatedDevicePath = DevicePath;\r | |
1351 | Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1352 | gBS->ConnectController (Handle, NULL, NULL, TRUE);\r | |
1353 | }\r | |
1354 | } else {\r | |
1355 | //\r | |
1356 | // Get BlockIo protocol and check removable attribute\r | |
1357 | //\r | |
1358 | Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **)&BlockIo);\r | |
1359 | //\r | |
1360 | // Issue a dummy read to the device to check for media change.\r | |
1361 | // When the removable media is changed, any Block IO read/write will\r | |
1362 | // cause the BlockIo protocol be reinstalled and EFI_MEDIA_CHANGED is\r | |
1363 | // returned. After the Block IO protocol is reinstalled, subsequent\r | |
1364 | // Block IO read/write will success.\r | |
1365 | //\r | |
1366 | Buffer = AllocatePool (BlockIo->Media->BlockSize);\r | |
1367 | if (Buffer != NULL) {\r | |
1368 | BlockIo->ReadBlocks (\r | |
1369 | BlockIo,\r | |
1370 | BlockIo->Media->MediaId,\r | |
1371 | 0,\r | |
1372 | BlockIo->Media->BlockSize,\r | |
1373 | Buffer\r | |
1374 | );\r | |
1375 | FreePool(Buffer);\r | |
1376 | }\r | |
1377 | }\r | |
1378 | \r | |
1379 | //\r | |
1380 | // Detect the the default boot file from removable Media\r | |
1381 | //\r | |
1382 | \r | |
1383 | //\r | |
1384 | // 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 | |
1385 | // Try to locate the USB node device path first, if fail then use its previous PCI node to search\r | |
1386 | //\r | |
1387 | DupDevicePath = DuplicateDevicePath (DevicePath);\r | |
1388 | ASSERT (DupDevicePath != NULL);\r | |
1389 | \r | |
1390 | UpdatedDevicePath = DupDevicePath;\r | |
1391 | Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1392 | //\r | |
1393 | // 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 | |
1394 | // Acpi()/Pci()/Usb() --> Acpi()/Pci()\r | |
1395 | //\r | |
1396 | if ((DevicePathType (UpdatedDevicePath) == MESSAGING_DEVICE_PATH) &&\r | |
1397 | (DevicePathSubType (UpdatedDevicePath) == MSG_USB_DP)) {\r | |
1398 | //\r | |
1399 | // Remove the usb node, let the device path only point to PCI node\r | |
1400 | //\r | |
1401 | SetDevicePathEndNode (UpdatedDevicePath);\r | |
1402 | UpdatedDevicePath = DupDevicePath;\r | |
1403 | } else {\r | |
1404 | UpdatedDevicePath = DevicePath;\r | |
1405 | }\r | |
1406 | \r | |
1407 | //\r | |
1408 | // Get the device path size of boot option\r | |
1409 | //\r | |
1410 | Size = GetDevicePathSize(UpdatedDevicePath) - sizeof (EFI_DEVICE_PATH_PROTOCOL); // minus the end node\r | |
1411 | ReturnHandle = NULL;\r | |
1412 | gBS->LocateHandleBuffer (\r | |
1413 | ByProtocol,\r | |
1414 | &gEfiSimpleFileSystemProtocolGuid,\r | |
1415 | NULL,\r | |
1416 | &NumberSimpleFileSystemHandles,\r | |
1417 | &SimpleFileSystemHandles\r | |
1418 | );\r | |
1419 | for (Index = 0; Index < NumberSimpleFileSystemHandles; Index++) {\r | |
1420 | //\r | |
1421 | // Get the device path size of SimpleFileSystem handle\r | |
1422 | //\r | |
1423 | TempDevicePath = DevicePathFromHandle (SimpleFileSystemHandles[Index]);\r | |
1424 | TempSize = GetDevicePathSize (TempDevicePath)- sizeof (EFI_DEVICE_PATH_PROTOCOL); // minus the end node\r | |
1425 | //\r | |
1426 | // Check whether the device path of boot option is part of the SimpleFileSystem handle's device path\r | |
1427 | //\r | |
1428 | if (Size <= TempSize && CompareMem (TempDevicePath, UpdatedDevicePath, Size)==0) {\r | |
1429 | //\r | |
1430 | // Load the default boot file \EFI\BOOT\boot{machinename}.EFI from removable Media\r | |
1431 | // machinename is ia32, ia64, x64, ...\r | |
1432 | //\r | |
1433 | Hdr.Union = &HdrData;\r | |
1434 | Status = BdsLibGetImageHeader (\r | |
1435 | SimpleFileSystemHandles[Index],\r | |
c62dbf31 | 1436 | EFI_REMOVABLE_MEDIA_FILE_NAME,\r |
5c08e117 | 1437 | &DosHeader,\r |
1438 | Hdr\r | |
1439 | );\r | |
1440 | if (!EFI_ERROR (Status) &&\r | |
1441 | EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Hdr.Pe32->FileHeader.Machine) &&\r | |
1442 | Hdr.Pe32->OptionalHeader.Subsystem == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {\r | |
1443 | ReturnHandle = SimpleFileSystemHandles[Index];\r | |
1444 | break;\r | |
1445 | }\r | |
1446 | }\r | |
1447 | }\r | |
1448 | \r | |
1449 | FreePool(DupDevicePath);\r | |
1450 | \r | |
1451 | if (SimpleFileSystemHandles != NULL) {\r | |
1452 | FreePool(SimpleFileSystemHandles);\r | |
1453 | }\r | |
1454 | \r | |
1455 | return ReturnHandle;\r | |
1456 | }\r | |
1457 | \r | |
1458 | /**\r | |
1459 | Check to see if the network cable is plugged in. If the DevicePath is not\r | |
1460 | connected it will be connected.\r | |
1461 | \r | |
1462 | @param DevicePath Device Path to check\r | |
1463 | \r | |
1464 | @retval TRUE DevicePath points to an Network that is connected\r | |
1465 | @retval FALSE DevicePath does not point to a bootable network\r | |
1466 | \r | |
1467 | **/\r | |
1468 | BOOLEAN\r | |
1469 | BdsLibNetworkBootWithMediaPresent (\r | |
1470 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1471 | )\r | |
1472 | {\r | |
1473 | EFI_STATUS Status;\r | |
1474 | EFI_DEVICE_PATH_PROTOCOL *UpdatedDevicePath;\r | |
1475 | EFI_HANDLE Handle;\r | |
1476 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
1477 | BOOLEAN MediaPresent;\r | |
1478 | \r | |
1479 | MediaPresent = FALSE;\r | |
1480 | \r | |
1481 | UpdatedDevicePath = DevicePath;\r | |
1482 | Status = gBS->LocateDevicePath (&gEfiSimpleNetworkProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1483 | if (EFI_ERROR (Status)) {\r | |
1484 | //\r | |
1485 | // Device not present so see if we need to connect it\r | |
1486 | //\r | |
1487 | Status = BdsLibConnectDevicePath (DevicePath);\r | |
1488 | if (!EFI_ERROR (Status)) {\r | |
1489 | //\r | |
1490 | // This one should work after we did the connect\r | |
1491 | //\r | |
1492 | Status = gBS->LocateDevicePath (&gEfiSimpleNetworkProtocolGuid, &UpdatedDevicePath, &Handle);\r | |
1493 | }\r | |
1494 | }\r | |
1495 | \r | |
1496 | if (!EFI_ERROR (Status)) {\r | |
1497 | Status = gBS->HandleProtocol (Handle, &gEfiSimpleNetworkProtocolGuid, (VOID **)&Snp);\r | |
1498 | if (!EFI_ERROR (Status)) {\r | |
1499 | if (Snp->Mode->MediaPresentSupported) {\r | |
1500 | if (Snp->Mode->State == EfiSimpleNetworkInitialized) {\r | |
1501 | //\r | |
1502 | // In case some one else is using the SNP check to see if it's connected\r | |
1503 | //\r | |
1504 | MediaPresent = Snp->Mode->MediaPresent;\r | |
1505 | } else {\r | |
1506 | //\r | |
1507 | // No one is using SNP so we need to Start and Initialize so\r | |
1508 | // MediaPresent will be valid.\r | |
1509 | //\r | |
1510 | Status = Snp->Start (Snp);\r | |
1511 | if (!EFI_ERROR (Status)) {\r | |
1512 | Status = Snp->Initialize (Snp, 0, 0);\r | |
1513 | if (!EFI_ERROR (Status)) {\r | |
1514 | MediaPresent = Snp->Mode->MediaPresent;\r | |
1515 | Snp->Shutdown (Snp);\r | |
1516 | }\r | |
1517 | Snp->Stop (Snp);\r | |
1518 | }\r | |
1519 | }\r | |
1520 | } else {\r | |
1521 | MediaPresent = TRUE;\r | |
1522 | }\r | |
1523 | }\r | |
1524 | }\r | |
1525 | \r | |
1526 | return MediaPresent;\r | |
1527 | }\r | |
1528 | \r | |
1529 | /**\r | |
1530 | For a bootable Device path, return its boot type.\r | |
1531 | \r | |
1532 | @param DevicePath The bootable device Path to check\r | |
1533 | \r | |
11c5022d | 1534 | @retval BDS_EFI_MEDIA_HD_BOOT If given device path contains MEDIA_DEVICE_PATH type device path node \r |
1535 | which subtype is MEDIA_HARDDRIVE_DP\r | |
1536 | @retval BDS_EFI_MEDIA_CDROM_BOOT If given device path contains MEDIA_DEVICE_PATH type device path node\r | |
1537 | which subtype is MEDIA_CDROM_DP\r | |
1538 | @retval BDS_EFI_ACPI_FLOPPY_BOOT If given device path contains ACPI_DEVICE_PATH type device path node\r | |
1539 | which HID is floppy device.\r | |
1540 | @retval BDS_EFI_MESSAGE_ATAPI_BOOT If given device path contains MESSAGING_DEVICE_PATH type device path node\r | |
1541 | and its last device path node's subtype is MSG_ATAPI_DP.\r | |
1542 | @retval BDS_EFI_MESSAGE_SCSI_BOOT If given device path contains MESSAGING_DEVICE_PATH type device path node\r | |
1543 | and its last device path node's subtype is MSG_SCSI_DP.\r | |
1544 | @retval BDS_EFI_MESSAGE_USB_DEVICE_BOOT If given device path contains MESSAGING_DEVICE_PATH type device path node\r | |
1545 | and its last device path node's subtype is MSG_USB_DP.\r | |
5c08e117 | 1546 | @retval BDS_EFI_MESSAGE_MISC_BOOT If the device path not contains any media device path node, and\r |
11c5022d | 1547 | its last device path node point to a message device path node.\r |
1548 | @retval BDS_LEGACY_BBS_BOOT If given device path contains BBS_DEVICE_PATH type device path node.\r | |
5c08e117 | 1549 | @retval BDS_EFI_UNSUPPORT An EFI Removable BlockIO device path not point to a media and message device, \r |
1550 | \r | |
1551 | **/\r | |
1552 | UINT32\r | |
1553 | EFIAPI\r | |
1554 | BdsGetBootTypeFromDevicePath (\r | |
1555 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
1556 | )\r | |
1557 | {\r | |
1558 | ACPI_HID_DEVICE_PATH *Acpi;\r | |
1559 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1560 | EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;\r | |
1561 | \r | |
1562 | \r | |
1563 | if (NULL == DevicePath) {\r | |
1564 | return BDS_EFI_UNSUPPORT;\r | |
1565 | }\r | |
1566 | \r | |
1567 | TempDevicePath = DevicePath;\r | |
1568 | \r | |
1569 | while (!IsDevicePathEndType (TempDevicePath)) {\r | |
1570 | switch (DevicePathType (TempDevicePath)) {\r | |
1571 | case BBS_DEVICE_PATH:\r | |
1572 | return BDS_LEGACY_BBS_BOOT;\r | |
1573 | case MEDIA_DEVICE_PATH:\r | |
1574 | if (DevicePathSubType (TempDevicePath) == MEDIA_HARDDRIVE_DP) {\r | |
1575 | return BDS_EFI_MEDIA_HD_BOOT;\r | |
1576 | } else if (DevicePathSubType (TempDevicePath) == MEDIA_CDROM_DP) {\r | |
1577 | return BDS_EFI_MEDIA_CDROM_BOOT;\r | |
429cac9c | 1578 | } \r |
5c08e117 | 1579 | break;\r |
1580 | case ACPI_DEVICE_PATH:\r | |
1581 | Acpi = (ACPI_HID_DEVICE_PATH *) TempDevicePath;\r | |
1582 | if (EISA_ID_TO_NUM (Acpi->HID) == 0x0604) {\r | |
1583 | return BDS_EFI_ACPI_FLOPPY_BOOT;\r | |
1584 | }\r | |
1585 | break;\r | |
1586 | case MESSAGING_DEVICE_PATH:\r | |
1587 | //\r | |
1588 | // Get the last device path node\r | |
1589 | //\r | |
1590 | LastDeviceNode = NextDevicePathNode (TempDevicePath);\r | |
1591 | if (DevicePathSubType(LastDeviceNode) == MSG_DEVICE_LOGICAL_UNIT_DP) {\r | |
1592 | //\r | |
1593 | // if the next node type is Device Logical Unit, which specify the Logical Unit Number (LUN),\r | |
1594 | // skit it\r | |
1595 | //\r | |
1596 | LastDeviceNode = NextDevicePathNode (LastDeviceNode);\r | |
1597 | }\r | |
1598 | //\r | |
1599 | // if the device path not only point to driver device, it is not a messaging device path,\r | |
1600 | //\r | |
1601 | if (!IsDevicePathEndType (LastDeviceNode)) {\r | |
1602 | break; \r | |
1603 | }\r | |
1604 | \r | |
1605 | if (DevicePathSubType(TempDevicePath) == MSG_ATAPI_DP) {\r | |
1606 | return BDS_EFI_MESSAGE_ATAPI_BOOT;\r | |
1607 | } else if (DevicePathSubType(TempDevicePath) == MSG_USB_DP) {\r | |
1608 | return BDS_EFI_MESSAGE_USB_DEVICE_BOOT;\r | |
1609 | } else if (DevicePathSubType(TempDevicePath) == MSG_SCSI_DP) {\r | |
1610 | return BDS_EFI_MESSAGE_SCSI_BOOT;\r | |
3384a9bc | 1611 | } else if (DevicePathSubType(TempDevicePath) == MSG_SATA_DP) {\r |
1612 | return BDS_EFI_MESSAGE_SATA_BOOT;\r | |
429cac9c | 1613 | } else if (DevicePathSubType(TempDevicePath) == MSG_MAC_ADDR_DP) {\r |
1614 | return BDS_EFI_MESSAGE_MAC_BOOT;\r | |
5c08e117 | 1615 | }\r |
1616 | return BDS_EFI_MESSAGE_MISC_BOOT;\r | |
1617 | default:\r | |
1618 | break;\r | |
1619 | }\r | |
1620 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
1621 | }\r | |
1622 | \r | |
1623 | return BDS_EFI_UNSUPPORT;\r | |
1624 | }\r | |
1625 | \r | |
1626 | /**\r | |
1627 | Check whether the Device path in a boot option point to a valid bootable device,\r | |
1628 | And if CheckMedia is true, check the device is ready to boot now.\r | |
1629 | \r | |
1630 | @param DevPath the Device path in a boot option\r | |
1631 | @param CheckMedia if true, check the device is ready to boot now.\r | |
1632 | \r | |
1633 | @retval TRUE the Device path is valid\r | |
1634 | @retval FALSE the Device path is invalid .\r | |
1635 | \r | |
1636 | **/\r | |
1637 | BOOLEAN\r | |
1638 | EFIAPI\r | |
1639 | BdsLibIsValidEFIBootOptDevicePath (\r | |
1640 | IN EFI_DEVICE_PATH_PROTOCOL *DevPath,\r | |
1641 | IN BOOLEAN CheckMedia\r | |
1642 | )\r | |
3384a9bc | 1643 | {\r |
1644 | return BdsLibIsValidEFIBootOptDevicePathExt (DevPath, CheckMedia, NULL);\r | |
1645 | }\r | |
1646 | \r | |
1647 | /**\r | |
1648 | Check whether the Device path in a boot option point to a valid bootable device,\r | |
1649 | And if CheckMedia is true, check the device is ready to boot now.\r | |
1650 | If Description is not NULL and the device path point to a fixed BlockIo\r | |
1651 | device, check the description whether conflict with other auto-created\r | |
1652 | boot options.\r | |
1653 | \r | |
1654 | @param DevPath the Device path in a boot option\r | |
1655 | @param CheckMedia if true, check the device is ready to boot now.\r | |
1656 | @param Description the description in a boot option\r | |
1657 | \r | |
1658 | @retval TRUE the Device path is valid\r | |
1659 | @retval FALSE the Device path is invalid .\r | |
1660 | \r | |
1661 | **/\r | |
1662 | BOOLEAN\r | |
1663 | EFIAPI\r | |
1664 | BdsLibIsValidEFIBootOptDevicePathExt (\r | |
1665 | IN EFI_DEVICE_PATH_PROTOCOL *DevPath,\r | |
1666 | IN BOOLEAN CheckMedia,\r | |
1667 | IN CHAR16 *Description\r | |
1668 | )\r | |
5c08e117 | 1669 | {\r |
1670 | EFI_STATUS Status;\r | |
1671 | EFI_HANDLE Handle;\r | |
1672 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1673 | EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;\r | |
1674 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
1675 | \r | |
1676 | TempDevicePath = DevPath;\r | |
1677 | LastDeviceNode = DevPath;\r | |
1678 | \r | |
1679 | //\r | |
1680 | // Check if it's a valid boot option for network boot device\r | |
1681 | // Only check if there is SimpleNetworkProtocol installed. If yes, that means\r | |
1682 | // there is the network card there.\r | |
1683 | //\r | |
1684 | Status = gBS->LocateDevicePath (\r | |
1685 | &gEfiSimpleNetworkProtocolGuid,\r | |
1686 | &TempDevicePath,\r | |
1687 | &Handle\r | |
1688 | );\r | |
1689 | if (EFI_ERROR (Status)) {\r | |
1690 | //\r | |
1691 | // Device not present so see if we need to connect it\r | |
1692 | //\r | |
1693 | TempDevicePath = DevPath;\r | |
1694 | BdsLibConnectDevicePath (TempDevicePath);\r | |
1695 | Status = gBS->LocateDevicePath (\r | |
1696 | &gEfiSimpleNetworkProtocolGuid,\r | |
1697 | &TempDevicePath,\r | |
1698 | &Handle\r | |
1699 | );\r | |
1700 | }\r | |
1701 | \r | |
1702 | if (!EFI_ERROR (Status)) {\r | |
1703 | if (CheckMedia) {\r | |
1704 | //\r | |
1705 | // Test if it is ready to boot now\r | |
1706 | //\r | |
1707 | if (BdsLibNetworkBootWithMediaPresent(DevPath)) {\r | |
1708 | return TRUE;\r | |
1709 | }\r | |
1710 | } else {\r | |
1711 | return TRUE;\r | |
1712 | }\r | |
1713 | }\r | |
1714 | \r | |
1715 | //\r | |
1716 | // If the boot option point to a file, it is a valid EFI boot option,\r | |
1717 | // and assume it is ready to boot now\r | |
1718 | //\r | |
1719 | while (!IsDevicePathEnd (TempDevicePath)) {\r | |
1720 | LastDeviceNode = TempDevicePath;\r | |
1721 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
1722 | }\r | |
1723 | if ((DevicePathType (LastDeviceNode) == MEDIA_DEVICE_PATH) &&\r | |
1724 | (DevicePathSubType (LastDeviceNode) == MEDIA_FILEPATH_DP)) {\r | |
1725 | return TRUE;\r | |
1726 | }\r | |
1727 | \r | |
1728 | //\r | |
1729 | // Check if it's a valid boot option for internal Shell\r | |
1730 | //\r | |
1731 | if (EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) LastDeviceNode) != NULL) {\r | |
1732 | //\r | |
1733 | // If the boot option point to Internal FV shell, make sure it is valid\r | |
1734 | //\r | |
1735 | TempDevicePath = DevPath; \r | |
d46f3632 | 1736 | Status = BdsLibUpdateFvFileDevicePath (&TempDevicePath, PcdGetPtr(PcdShellFile));\r |
5c08e117 | 1737 | if (Status == EFI_ALREADY_STARTED) {\r |
1738 | return TRUE;\r | |
1739 | } else {\r | |
1740 | if (Status == EFI_SUCCESS) {\r | |
1741 | FreePool (TempDevicePath); \r | |
1742 | }\r | |
1743 | return FALSE;\r | |
1744 | }\r | |
1745 | }\r | |
1746 | \r | |
1747 | //\r | |
3384a9bc | 1748 | // If the boot option point to a blockIO device:\r |
8d3b5aff | 1749 | // if it is a removable blockIo device, it is valid.\r |
1750 | // if it is a fixed blockIo device, check its description confliction. \r | |
5c08e117 | 1751 | //\r |
1752 | TempDevicePath = DevPath;\r | |
1753 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &TempDevicePath, &Handle);\r | |
1754 | if (EFI_ERROR (Status)) {\r | |
1755 | //\r | |
1756 | // Device not present so see if we need to connect it\r | |
1757 | //\r | |
1758 | Status = BdsLibConnectDevicePath (DevPath);\r | |
1759 | if (!EFI_ERROR (Status)) {\r | |
1760 | //\r | |
1761 | // Try again to get the Block Io protocol after we did the connect\r | |
1762 | //\r | |
1763 | TempDevicePath = DevPath;\r | |
1764 | Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &TempDevicePath, &Handle);\r | |
1765 | }\r | |
1766 | }\r | |
1767 | \r | |
1768 | if (!EFI_ERROR (Status)) {\r | |
1769 | Status = gBS->HandleProtocol (Handle, &gEfiBlockIoProtocolGuid, (VOID **)&BlockIo);\r | |
1770 | if (!EFI_ERROR (Status)) {\r | |
1771 | if (CheckMedia) {\r | |
1772 | //\r | |
1773 | // Test if it is ready to boot now\r | |
1774 | //\r | |
1775 | if (BdsLibGetBootableHandle (DevPath) != NULL) {\r | |
1776 | return TRUE;\r | |
1777 | }\r | |
1778 | } else {\r | |
1779 | return TRUE;\r | |
1780 | }\r | |
1781 | }\r | |
1782 | } else {\r | |
1783 | //\r | |
1784 | // 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 | |
1785 | //\r | |
1786 | Status = gBS->LocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &TempDevicePath, &Handle);\r | |
1787 | if (!EFI_ERROR (Status)) {\r | |
1788 | if (CheckMedia) {\r | |
1789 | //\r | |
1790 | // Test if it is ready to boot now\r | |
1791 | //\r | |
1792 | if (BdsLibGetBootableHandle (DevPath) != NULL) {\r | |
1793 | return TRUE;\r | |
1794 | }\r | |
1795 | } else {\r | |
1796 | return TRUE;\r | |
1797 | }\r | |
1798 | }\r | |
1799 | }\r | |
1800 | \r | |
1801 | return FALSE;\r | |
1802 | }\r | |
1803 | \r | |
1804 | \r | |
1805 | /**\r | |
1806 | According to a file guild, check a Fv file device path is valid. If it is invalid,\r | |
1807 | try to return the valid device path.\r | |
1808 | FV address maybe changes for memory layout adjust from time to time, use this function\r | |
1809 | could promise the Fv file device path is right.\r | |
1810 | \r | |
1811 | @param DevicePath on input, the Fv file device path need to check on\r | |
1812 | output, the updated valid Fv file device path\r | |
1813 | @param FileGuid the Fv file guild\r | |
1814 | \r | |
1815 | @retval EFI_INVALID_PARAMETER the input DevicePath or FileGuid is invalid\r | |
1816 | parameter\r | |
1817 | @retval EFI_UNSUPPORTED the input DevicePath does not contain Fv file\r | |
1818 | guild at all\r | |
1819 | @retval EFI_ALREADY_STARTED the input DevicePath has pointed to Fv file, it is\r | |
1820 | valid\r | |
1821 | @retval EFI_SUCCESS has successfully updated the invalid DevicePath,\r | |
1822 | and return the updated device path in DevicePath\r | |
1823 | \r | |
1824 | **/\r | |
1825 | EFI_STATUS\r | |
1826 | EFIAPI\r | |
1827 | BdsLibUpdateFvFileDevicePath (\r | |
1828 | IN OUT EFI_DEVICE_PATH_PROTOCOL ** DevicePath,\r | |
1829 | IN EFI_GUID *FileGuid\r | |
1830 | )\r | |
1831 | {\r | |
1832 | EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;\r | |
1833 | EFI_DEVICE_PATH_PROTOCOL *LastDeviceNode;\r | |
1834 | EFI_STATUS Status;\r | |
1835 | EFI_GUID *GuidPoint;\r | |
1836 | UINTN Index;\r | |
1837 | UINTN FvHandleCount;\r | |
1838 | EFI_HANDLE *FvHandleBuffer;\r | |
1839 | EFI_FV_FILETYPE Type;\r | |
1840 | UINTN Size;\r | |
1841 | EFI_FV_FILE_ATTRIBUTES Attributes;\r | |
1842 | UINT32 AuthenticationStatus;\r | |
1843 | BOOLEAN FindFvFile;\r | |
1844 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
1845 | EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;\r | |
1846 | MEDIA_FW_VOL_FILEPATH_DEVICE_PATH FvFileNode;\r | |
1847 | EFI_HANDLE FoundFvHandle;\r | |
1848 | EFI_DEVICE_PATH_PROTOCOL *NewDevicePath;\r | |
1849 | \r | |
1850 | if ((DevicePath == NULL) || (*DevicePath == NULL)) {\r | |
1851 | return EFI_INVALID_PARAMETER;\r | |
1852 | }\r | |
1853 | if (FileGuid == NULL) {\r | |
1854 | return EFI_INVALID_PARAMETER;\r | |
1855 | }\r | |
1856 | \r | |
1857 | //\r | |
1858 | // Check whether the device path point to the default the input Fv file\r | |
1859 | //\r | |
1860 | TempDevicePath = *DevicePath;\r | |
1861 | LastDeviceNode = TempDevicePath;\r | |
1862 | while (!IsDevicePathEnd (TempDevicePath)) {\r | |
1863 | LastDeviceNode = TempDevicePath;\r | |
1864 | TempDevicePath = NextDevicePathNode (TempDevicePath);\r | |
1865 | }\r | |
1866 | GuidPoint = EfiGetNameGuidFromFwVolDevicePathNode (\r | |
1867 | (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) LastDeviceNode\r | |
1868 | );\r | |
1869 | if (GuidPoint == NULL) {\r | |
1870 | //\r | |
1871 | // if this option does not points to a Fv file, just return EFI_UNSUPPORTED\r | |
1872 | //\r | |
1873 | return EFI_UNSUPPORTED;\r | |
1874 | }\r | |
1875 | if (!CompareGuid (GuidPoint, FileGuid)) {\r | |
1876 | //\r | |
1877 | // If the Fv file is not the input file guid, just return EFI_UNSUPPORTED\r | |
1878 | //\r | |
1879 | return EFI_UNSUPPORTED;\r | |
1880 | }\r | |
1881 | \r | |
1882 | //\r | |
1883 | // Check whether the input Fv file device path is valid\r | |
1884 | //\r | |
1885 | TempDevicePath = *DevicePath;\r | |
1886 | FoundFvHandle = NULL;\r | |
1887 | Status = gBS->LocateDevicePath (\r | |
1888 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1889 | &TempDevicePath,\r | |
1890 | &FoundFvHandle\r | |
1891 | );\r | |
1892 | if (!EFI_ERROR (Status)) {\r | |
1893 | Status = gBS->HandleProtocol (\r | |
1894 | FoundFvHandle,\r | |
1895 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1896 | (VOID **) &Fv\r | |
1897 | );\r | |
1898 | if (!EFI_ERROR (Status)) {\r | |
1899 | //\r | |
1900 | // Set FV ReadFile Buffer as NULL, only need to check whether input Fv file exist there\r | |
1901 | //\r | |
1902 | Status = Fv->ReadFile (\r | |
1903 | Fv,\r | |
1904 | FileGuid,\r | |
1905 | NULL,\r | |
1906 | &Size,\r | |
1907 | &Type,\r | |
1908 | &Attributes,\r | |
1909 | &AuthenticationStatus\r | |
1910 | );\r | |
1911 | if (!EFI_ERROR (Status)) {\r | |
1912 | return EFI_ALREADY_STARTED;\r | |
1913 | }\r | |
1914 | }\r | |
1915 | }\r | |
1916 | \r | |
1917 | //\r | |
1918 | // Look for the input wanted FV file in current FV\r | |
1919 | // First, try to look for in Bds own FV. Bds and input wanted FV file usually are in the same FV\r | |
1920 | //\r | |
1921 | FindFvFile = FALSE;\r | |
1922 | FoundFvHandle = NULL;\r | |
1923 | Status = gBS->HandleProtocol (\r | |
1924 | mBdsImageHandle,\r | |
1925 | &gEfiLoadedImageProtocolGuid,\r | |
1926 | (VOID **) &LoadedImage\r | |
1927 | );\r | |
1928 | if (!EFI_ERROR (Status)) {\r | |
1929 | Status = gBS->HandleProtocol (\r | |
1930 | LoadedImage->DeviceHandle,\r | |
1931 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1932 | (VOID **) &Fv\r | |
1933 | );\r | |
1934 | if (!EFI_ERROR (Status)) {\r | |
1935 | Status = Fv->ReadFile (\r | |
1936 | Fv,\r | |
1937 | FileGuid,\r | |
1938 | NULL,\r | |
1939 | &Size,\r | |
1940 | &Type,\r | |
1941 | &Attributes,\r | |
1942 | &AuthenticationStatus\r | |
1943 | );\r | |
1944 | if (!EFI_ERROR (Status)) {\r | |
1945 | FindFvFile = TRUE;\r | |
1946 | FoundFvHandle = LoadedImage->DeviceHandle;\r | |
1947 | }\r | |
1948 | }\r | |
1949 | }\r | |
1950 | //\r | |
1951 | // Second, if fail to find, try to enumerate all FV\r | |
1952 | //\r | |
1953 | if (!FindFvFile) {\r | |
1954 | FvHandleBuffer = NULL;\r | |
1955 | gBS->LocateHandleBuffer (\r | |
1956 | ByProtocol,\r | |
1957 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1958 | NULL,\r | |
1959 | &FvHandleCount,\r | |
1960 | &FvHandleBuffer\r | |
1961 | );\r | |
1962 | for (Index = 0; Index < FvHandleCount; Index++) {\r | |
1963 | gBS->HandleProtocol (\r | |
1964 | FvHandleBuffer[Index],\r | |
1965 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
1966 | (VOID **) &Fv\r | |
1967 | );\r | |
1968 | \r | |
1969 | Status = Fv->ReadFile (\r | |
1970 | Fv,\r | |
1971 | FileGuid,\r | |
1972 | NULL,\r | |
1973 | &Size,\r | |
1974 | &Type,\r | |
1975 | &Attributes,\r | |
1976 | &AuthenticationStatus\r | |
1977 | );\r | |
1978 | if (EFI_ERROR (Status)) {\r | |
1979 | //\r | |
1980 | // Skip if input Fv file not in the FV\r | |
1981 | //\r | |
1982 | continue;\r | |
1983 | }\r | |
1984 | FindFvFile = TRUE;\r | |
1985 | FoundFvHandle = FvHandleBuffer[Index];\r | |
1986 | break;\r | |
1987 | }\r | |
1988 | \r | |
1989 | if (FvHandleBuffer != NULL) {\r | |
1990 | FreePool (FvHandleBuffer); \r | |
1991 | }\r | |
1992 | }\r | |
1993 | \r | |
1994 | if (FindFvFile) {\r | |
1995 | //\r | |
1996 | // Build the shell device path\r | |
1997 | //\r | |
1998 | NewDevicePath = DevicePathFromHandle (FoundFvHandle);\r | |
1999 | EfiInitializeFwVolDevicepathNode (&FvFileNode, FileGuid);\r | |
2000 | NewDevicePath = AppendDevicePathNode (NewDevicePath, (EFI_DEVICE_PATH_PROTOCOL *) &FvFileNode);\r | |
2001 | *DevicePath = NewDevicePath;\r | |
2002 | return EFI_SUCCESS;\r | |
2003 | }\r | |
2004 | return EFI_NOT_FOUND;\r | |
2005 | }\r |