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1 | /** @file\r |
2 | This module produce main entry for BDS phase - BdsEntry.\r | |
3 | When this module was dispatched by DxeCore, gEfiBdsArchProtocolGuid will be installed\r | |
4 | which contains interface of BdsEntry.\r | |
5 | After DxeCore finish DXE phase, gEfiBdsArchProtocolGuid->BdsEntry will be invoked\r | |
6 | to enter BDS phase.\r | |
7 | \r | |
8 | Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>\r | |
9 | This program and the accompanying materials\r | |
10 | are licensed and made available under the terms and conditions of the BSD License\r | |
11 | which accompanies this distribution. The full text of the license may be found at\r | |
12 | http://opensource.org/licenses/bsd-license.php\r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | \r | |
17 | **/\r | |
18 | \r | |
19 | #include "Bds.h"\r | |
20 | #include "Language.h"\r | |
21 | #include "HwErrRecSupport.h"\r | |
22 | \r | |
23 | #define SET_BOOT_OPTION_SUPPORT_KEY_COUNT(a, c) { \\r | |
24 | (a) = ((a) & ~EFI_BOOT_OPTION_SUPPORT_COUNT) | (((c) << LowBitSet32 (EFI_BOOT_OPTION_SUPPORT_COUNT)) & EFI_BOOT_OPTION_SUPPORT_COUNT); \\r | |
25 | }\r | |
26 | \r | |
27 | ///\r | |
28 | /// BDS arch protocol instance initial value.\r | |
29 | ///\r | |
30 | EFI_BDS_ARCH_PROTOCOL gBds = {\r | |
31 | BdsEntry\r | |
32 | };\r | |
33 | \r | |
34 | //\r | |
35 | // gConnectConInEvent - Event which is signaled when ConIn connection is required\r | |
36 | //\r | |
37 | EFI_EVENT gConnectConInEvent = NULL;\r | |
38 | \r | |
39 | ///\r | |
40 | /// The read-only variables defined in UEFI Spec.\r | |
41 | ///\r | |
42 | CHAR16 *mReadOnlyVariables[] = {\r | |
43 | EFI_PLATFORM_LANG_CODES_VARIABLE_NAME,\r | |
44 | EFI_LANG_CODES_VARIABLE_NAME,\r | |
45 | EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME,\r | |
46 | EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME,\r | |
47 | EFI_OS_INDICATIONS_SUPPORT_VARIABLE_NAME\r | |
48 | };\r | |
49 | \r | |
50 | CHAR16 mRecoveryBoot[] = L"Recovery Boot";\r | |
51 | /**\r | |
52 | Event to Connect ConIn.\r | |
53 | \r | |
54 | @param Event Event whose notification function is being invoked.\r | |
55 | @param Context Pointer to the notification function's context,\r | |
56 | which is implementation-dependent.\r | |
57 | \r | |
58 | **/\r | |
59 | VOID\r | |
60 | EFIAPI\r | |
61 | BdsDxeOnConnectConInCallBack (\r | |
62 | IN EFI_EVENT Event,\r | |
63 | IN VOID *Context\r | |
64 | )\r | |
65 | {\r | |
66 | EFI_STATUS Status;\r | |
67 | \r | |
68 | //\r | |
69 | // When Osloader call ReadKeyStroke to signal this event\r | |
70 | // no driver dependency is assumed existing. So use a non-dispatch version\r | |
71 | //\r | |
72 | Status = EfiBootManagerConnectConsoleVariable (ConIn);\r | |
73 | if (EFI_ERROR (Status)) {\r | |
74 | //\r | |
75 | // Should not enter this case, if enter, the keyboard will not work.\r | |
76 | // May need platfrom policy to connect keyboard.\r | |
77 | //\r | |
78 | DEBUG ((EFI_D_WARN, "[Bds] ASSERT Connect ConIn failed!!!\n"));\r | |
79 | }\r | |
80 | }\r | |
81 | \r | |
82 | /**\r | |
83 | \r | |
84 | Install Boot Device Selection Protocol\r | |
85 | \r | |
86 | @param ImageHandle The image handle.\r | |
87 | @param SystemTable The system table.\r | |
88 | \r | |
89 | @retval EFI_SUCEESS BDS has finished initializing.\r | |
90 | Return the dispatcher and recall BDS.Entry\r | |
91 | @retval Other Return status from AllocatePool() or gBS->InstallProtocolInterface\r | |
92 | \r | |
93 | **/\r | |
94 | EFI_STATUS\r | |
95 | EFIAPI\r | |
96 | BdsInitialize (\r | |
97 | IN EFI_HANDLE ImageHandle,\r | |
98 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
99 | )\r | |
100 | {\r | |
101 | EFI_STATUS Status;\r | |
102 | EFI_HANDLE Handle;\r | |
103 | //\r | |
104 | // Install protocol interface\r | |
105 | //\r | |
106 | Handle = NULL;\r | |
107 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
108 | &Handle,\r | |
109 | &gEfiBdsArchProtocolGuid, &gBds,\r | |
110 | NULL\r | |
111 | );\r | |
112 | ASSERT_EFI_ERROR (Status);\r | |
113 | \r | |
114 | return Status;\r | |
115 | }\r | |
116 | \r | |
117 | /**\r | |
118 | Emuerate all possible bootable medias in the following order:\r | |
119 | 1. Removable BlockIo - The boot option only points to the removable media\r | |
120 | device, like USB key, DVD, Floppy etc.\r | |
121 | 2. Fixed BlockIo - The boot option only points to a Fixed blockIo device,\r | |
122 | like HardDisk.\r | |
123 | 3. Non-BlockIo SimpleFileSystem - The boot option points to a device supporting\r | |
124 | SimpleFileSystem Protocol, but not supporting BlockIo\r | |
125 | protocol.\r | |
126 | 4. LoadFile - The boot option points to the media supporting \r | |
127 | LoadFile protocol.\r | |
128 | Reference: UEFI Spec chapter 3.3 Boot Option Variables Default Boot Behavior\r | |
129 | \r | |
130 | @param BootOptionCount Return the boot option count which has been found.\r | |
131 | \r | |
132 | @retval Pointer to the boot option array.\r | |
133 | **/\r | |
134 | EFI_BOOT_MANAGER_LOAD_OPTION *\r | |
135 | BdsEnumerateBootOptions (\r | |
136 | UINTN *BootOptionCount\r | |
137 | )\r | |
138 | {\r | |
139 | EFI_STATUS Status;\r | |
140 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
141 | UINT16 NonBlockNumber;\r | |
142 | UINTN HandleCount;\r | |
143 | EFI_HANDLE *Handles;\r | |
144 | EFI_BLOCK_IO_PROTOCOL *BlkIo;\r | |
145 | UINTN Removable;\r | |
146 | UINTN Index;\r | |
147 | \r | |
148 | ASSERT (BootOptionCount != NULL);\r | |
149 | \r | |
150 | *BootOptionCount = 0;\r | |
151 | BootOptions = NULL;\r | |
152 | \r | |
153 | //\r | |
154 | // Parse removable block io followed by fixed block io\r | |
155 | //\r | |
156 | gBS->LocateHandleBuffer (\r | |
157 | ByProtocol,\r | |
158 | &gEfiBlockIoProtocolGuid,\r | |
159 | NULL,\r | |
160 | &HandleCount,\r | |
161 | &Handles\r | |
162 | );\r | |
163 | \r | |
164 | for (Removable = 0; Removable < 2; Removable++) {\r | |
165 | for (Index = 0; Index < HandleCount; Index++) {\r | |
166 | Status = gBS->HandleProtocol (\r | |
167 | Handles[Index],\r | |
168 | &gEfiBlockIoProtocolGuid,\r | |
169 | (VOID **) &BlkIo\r | |
170 | );\r | |
171 | if (EFI_ERROR (Status)) {\r | |
172 | continue;\r | |
173 | }\r | |
174 | \r | |
175 | //\r | |
176 | // Skip the logical partitions\r | |
177 | //\r | |
178 | if (BlkIo->Media->LogicalPartition) {\r | |
179 | continue;\r | |
180 | }\r | |
181 | \r | |
182 | //\r | |
183 | // Skip the fixed block io then the removable block io\r | |
184 | //\r | |
185 | if (BlkIo->Media->RemovableMedia == ((Removable == 0) ? FALSE : TRUE)) {\r | |
186 | continue;\r | |
187 | }\r | |
188 | \r | |
189 | BootOptions = ReallocatePool (\r | |
190 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
191 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
192 | BootOptions\r | |
193 | );\r | |
194 | ASSERT (BootOptions != NULL);\r | |
195 | \r | |
196 | Status = EfiBootManagerInitializeLoadOption (\r | |
197 | &BootOptions[(*BootOptionCount)++],\r | |
198 | LoadOptionNumberUnassigned,\r | |
199 | LoadOptionTypeBoot,\r | |
200 | LOAD_OPTION_ACTIVE,\r | |
201 | mRecoveryBoot,\r | |
202 | DevicePathFromHandle (Handles[Index]),\r | |
203 | NULL,\r | |
204 | 0\r | |
205 | );\r | |
206 | ASSERT_EFI_ERROR (Status);\r | |
207 | }\r | |
208 | }\r | |
209 | \r | |
210 | if (HandleCount != 0) {\r | |
211 | FreePool (Handles);\r | |
212 | }\r | |
213 | \r | |
214 | //\r | |
215 | // Parse simple file system not based on block io\r | |
216 | //\r | |
217 | NonBlockNumber = 0;\r | |
218 | gBS->LocateHandleBuffer (\r | |
219 | ByProtocol,\r | |
220 | &gEfiSimpleFileSystemProtocolGuid,\r | |
221 | NULL,\r | |
222 | &HandleCount,\r | |
223 | &Handles\r | |
224 | );\r | |
225 | for (Index = 0; Index < HandleCount; Index++) {\r | |
226 | Status = gBS->HandleProtocol (\r | |
227 | Handles[Index],\r | |
228 | &gEfiBlockIoProtocolGuid,\r | |
229 | (VOID **) &BlkIo\r | |
230 | );\r | |
231 | if (!EFI_ERROR (Status)) {\r | |
232 | //\r | |
233 | // Skip if the file system handle supports a BlkIo protocol, which we've handled in above\r | |
234 | //\r | |
235 | continue;\r | |
236 | }\r | |
237 | BootOptions = ReallocatePool (\r | |
238 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
239 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
240 | BootOptions\r | |
241 | );\r | |
242 | ASSERT (BootOptions != NULL);\r | |
243 | \r | |
244 | Status = EfiBootManagerInitializeLoadOption (\r | |
245 | &BootOptions[(*BootOptionCount)++],\r | |
246 | LoadOptionNumberUnassigned,\r | |
247 | LoadOptionTypeBoot,\r | |
248 | LOAD_OPTION_ACTIVE,\r | |
249 | mRecoveryBoot,\r | |
250 | DevicePathFromHandle (Handles[Index]),\r | |
251 | NULL,\r | |
252 | 0\r | |
253 | );\r | |
254 | ASSERT_EFI_ERROR (Status);\r | |
255 | }\r | |
256 | \r | |
257 | if (HandleCount != 0) {\r | |
258 | FreePool (Handles);\r | |
259 | }\r | |
260 | \r | |
261 | //\r | |
262 | // Parse load file, assuming UEFI Network boot option\r | |
263 | //\r | |
264 | gBS->LocateHandleBuffer (\r | |
265 | ByProtocol,\r | |
266 | &gEfiLoadFileProtocolGuid,\r | |
267 | NULL,\r | |
268 | &HandleCount,\r | |
269 | &Handles\r | |
270 | );\r | |
271 | for (Index = 0; Index < HandleCount; Index++) {\r | |
272 | \r | |
273 | BootOptions = ReallocatePool (\r | |
274 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount),\r | |
275 | sizeof (EFI_BOOT_MANAGER_LOAD_OPTION) * (*BootOptionCount + 1),\r | |
276 | BootOptions\r | |
277 | );\r | |
278 | ASSERT (BootOptions != NULL);\r | |
279 | \r | |
280 | Status = EfiBootManagerInitializeLoadOption (\r | |
281 | &BootOptions[(*BootOptionCount)++],\r | |
282 | LoadOptionNumberUnassigned,\r | |
283 | LoadOptionTypeBoot,\r | |
284 | LOAD_OPTION_ACTIVE,\r | |
285 | mRecoveryBoot,\r | |
286 | DevicePathFromHandle (Handles[Index]),\r | |
287 | NULL,\r | |
288 | 0\r | |
289 | );\r | |
290 | ASSERT_EFI_ERROR (Status);\r | |
291 | }\r | |
292 | \r | |
293 | if (HandleCount != 0) {\r | |
294 | FreePool (Handles);\r | |
295 | }\r | |
296 | \r | |
297 | return BootOptions;\r | |
298 | }\r | |
299 | \r | |
300 | /**\r | |
301 | Function waits for a given event to fire, or for an optional timeout to expire.\r | |
302 | \r | |
303 | @param Event The event to wait for\r | |
304 | @param Timeout An optional timeout value in 100 ns units.\r | |
305 | \r | |
306 | @retval EFI_SUCCESS Event fired before Timeout expired.\r | |
307 | @retval EFI_TIME_OUT Timout expired before Event fired..\r | |
308 | \r | |
309 | **/\r | |
310 | EFI_STATUS\r | |
311 | BdsWaitForSingleEvent (\r | |
312 | IN EFI_EVENT Event,\r | |
313 | IN UINT64 Timeout OPTIONAL\r | |
314 | )\r | |
315 | {\r | |
316 | UINTN Index;\r | |
317 | EFI_STATUS Status;\r | |
318 | EFI_EVENT TimerEvent;\r | |
319 | EFI_EVENT WaitList[2];\r | |
320 | \r | |
321 | if (Timeout != 0) {\r | |
322 | //\r | |
323 | // Create a timer event\r | |
324 | //\r | |
325 | Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);\r | |
326 | if (!EFI_ERROR (Status)) {\r | |
327 | //\r | |
328 | // Set the timer event\r | |
329 | //\r | |
330 | gBS->SetTimer (\r | |
331 | TimerEvent,\r | |
332 | TimerRelative,\r | |
333 | Timeout\r | |
334 | );\r | |
335 | \r | |
336 | //\r | |
337 | // Wait for the original event or the timer\r | |
338 | //\r | |
339 | WaitList[0] = Event;\r | |
340 | WaitList[1] = TimerEvent;\r | |
341 | Status = gBS->WaitForEvent (2, WaitList, &Index);\r | |
342 | ASSERT_EFI_ERROR (Status);\r | |
343 | gBS->CloseEvent (TimerEvent);\r | |
344 | \r | |
345 | //\r | |
346 | // If the timer expired, change the return to timed out\r | |
347 | //\r | |
348 | if (Index == 1) {\r | |
349 | Status = EFI_TIMEOUT;\r | |
350 | }\r | |
351 | }\r | |
352 | } else {\r | |
353 | //\r | |
354 | // No timeout... just wait on the event\r | |
355 | //\r | |
356 | Status = gBS->WaitForEvent (1, &Event, &Index);\r | |
357 | ASSERT (!EFI_ERROR (Status));\r | |
358 | ASSERT (Index == 0);\r | |
359 | }\r | |
360 | \r | |
361 | return Status;\r | |
362 | }\r | |
363 | \r | |
364 | /**\r | |
365 | The function reads user inputs.\r | |
366 | \r | |
367 | **/\r | |
368 | VOID\r | |
369 | BdsReadKeys (\r | |
370 | VOID\r | |
371 | )\r | |
372 | {\r | |
373 | EFI_STATUS Status;\r | |
374 | EFI_INPUT_KEY Key;\r | |
375 | \r | |
376 | if (PcdGetBool (PcdConInConnectOnDemand)) {\r | |
377 | return;\r | |
378 | }\r | |
379 | \r | |
380 | while (gST->ConIn != NULL) {\r | |
381 | \r | |
382 | Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);\r | |
383 | \r | |
384 | if (EFI_ERROR (Status)) {\r | |
385 | //\r | |
386 | // No more keys.\r | |
387 | //\r | |
388 | break;\r | |
389 | }\r | |
390 | }\r | |
391 | }\r | |
392 | \r | |
393 | /**\r | |
394 | The function waits for the boot manager timeout expires or hotkey is pressed.\r | |
395 | \r | |
396 | It calls PlatformBootManagerWaitCallback each second.\r | |
397 | \r | |
398 | @param HotkeyTriggered Input hotkey event.\r | |
399 | **/\r | |
400 | VOID\r | |
401 | BdsWait (\r | |
402 | IN EFI_EVENT HotkeyTriggered\r | |
403 | )\r | |
404 | {\r | |
405 | EFI_STATUS Status;\r | |
406 | UINT16 TimeoutRemain;\r | |
407 | \r | |
408 | DEBUG ((EFI_D_INFO, "[Bds]BdsWait ...Zzzzzzzzzzzz...\n"));\r | |
409 | \r | |
410 | TimeoutRemain = PcdGet16 (PcdPlatformBootTimeOut);\r | |
411 | while (TimeoutRemain != 0) {\r | |
412 | DEBUG ((EFI_D_INFO, "[Bds]BdsWait(%d)..Zzzz...\n", (UINTN) TimeoutRemain));\r | |
413 | PlatformBootManagerWaitCallback (TimeoutRemain);\r | |
414 | \r | |
415 | BdsReadKeys (); // BUGBUG: Only reading can signal HotkeyTriggered\r | |
416 | // Can be removed after all keyboard drivers invoke callback in timer callback.\r | |
417 | \r | |
418 | if (HotkeyTriggered != NULL) {\r | |
419 | Status = BdsWaitForSingleEvent (HotkeyTriggered, EFI_TIMER_PERIOD_SECONDS (1));\r | |
420 | if (!EFI_ERROR (Status)) {\r | |
421 | break;\r | |
422 | }\r | |
423 | } else {\r | |
424 | gBS->Stall (1000000);\r | |
425 | }\r | |
426 | \r | |
427 | //\r | |
428 | // 0xffff means waiting forever\r | |
429 | // BDS with no hotkey provided and 0xffff as timeout will "hang" in the loop\r | |
430 | //\r | |
431 | if (TimeoutRemain != 0xffff) {\r | |
432 | TimeoutRemain--;\r | |
433 | }\r | |
434 | }\r | |
435 | DEBUG ((EFI_D_INFO, "[Bds]Exit the waiting!\n"));\r | |
436 | }\r | |
437 | \r | |
438 | /**\r | |
439 | Attempt to boot each boot option in the BootOptions array.\r | |
440 | \r | |
441 | @param BootOptions Input boot option array.\r | |
442 | @param BootOptionCount Input boot option count.\r | |
443 | \r | |
444 | @retval TRUE Successfully boot one of the boot options.\r | |
445 | @retval FALSE Failed boot any of the boot options.\r | |
446 | **/\r | |
447 | BOOLEAN\r | |
448 | BootAllBootOptions (\r | |
449 | IN EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions,\r | |
450 | IN UINTN BootOptionCount\r | |
451 | )\r | |
452 | {\r | |
453 | UINTN Index;\r | |
454 | \r | |
455 | //\r | |
456 | // Attempt boot each boot option\r | |
457 | //\r | |
458 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
459 | //\r | |
460 | // According to EFI Specification, if a load option is not marked\r | |
461 | // as LOAD_OPTION_ACTIVE, the boot manager will not automatically\r | |
462 | // load the option.\r | |
463 | //\r | |
464 | if ((BootOptions[Index].Attributes & LOAD_OPTION_ACTIVE) == 0) {\r | |
465 | continue;\r | |
466 | }\r | |
467 | \r | |
468 | //\r | |
469 | // Boot#### load options with LOAD_OPTION_CATEGORY_APP are executables which are not\r | |
470 | // part of the normal boot processing. Boot options with reserved category values will be\r | |
471 | // ignored by the boot manager.\r | |
472 | //\r | |
473 | if ((BootOptions[Index].Attributes & LOAD_OPTION_CATEGORY) != LOAD_OPTION_CATEGORY_BOOT) {\r | |
474 | continue;\r | |
475 | }\r | |
476 | \r | |
477 | //\r | |
478 | // All the driver options should have been processed since\r | |
479 | // now boot will be performed.\r | |
480 | //\r | |
481 | EfiBootManagerBoot (&BootOptions[Index]);\r | |
482 | \r | |
483 | //\r | |
484 | // Successful boot breaks the loop, otherwise tries next boot option\r | |
485 | //\r | |
486 | if (BootOptions[Index].Status == EFI_SUCCESS) {\r | |
487 | break;\r | |
488 | }\r | |
489 | }\r | |
490 | \r | |
491 | return (BOOLEAN) (Index < BootOptionCount);\r | |
492 | }\r | |
493 | \r | |
494 | /**\r | |
495 | This function attempts to boot per the boot order specified by platform policy.\r | |
496 | \r | |
497 | If the boot via Boot#### returns with a status of EFI_SUCCESS the boot manager will stop \r | |
498 | processing the BootOrder variable and present a boot manager menu to the user. If a boot via \r | |
499 | Boot#### returns a status other than EFI_SUCCESS, the boot has failed and the next Boot####\r | |
500 | in the BootOrder variable will be tried until all possibilities are exhausted.\r | |
501 | -- Chapter 3.1.1 Boot Manager Programming, the 4th paragraph\r | |
502 | **/\r | |
503 | VOID\r | |
504 | DefaultBootBehavior (\r | |
505 | VOID\r | |
506 | )\r | |
507 | {\r | |
508 | UINTN BootOptionCount;\r | |
509 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
510 | EFI_BOOT_MANAGER_LOAD_OPTION BootManagerMenu;\r | |
511 | \r | |
512 | EfiBootManagerGetBootManagerMenu (&BootManagerMenu);\r | |
513 | //\r | |
514 | // BootManagerMenu always contains the correct information even the above function returns failure.\r | |
515 | //\r | |
516 | \r | |
517 | BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
518 | \r | |
519 | if (BootAllBootOptions (BootOptions, BootOptionCount)) {\r | |
520 | //\r | |
521 | // Follow generic rule, Call BdsDxeOnConnectConInCallBack to connect ConIn before enter UI\r | |
522 | //\r | |
523 | if (PcdGetBool (PcdConInConnectOnDemand)) {\r | |
524 | BdsDxeOnConnectConInCallBack (NULL, NULL);\r | |
525 | }\r | |
526 | \r | |
527 | //\r | |
528 | // Show the Boot Manager Menu after successful boot\r | |
529 | //\r | |
530 | EfiBootManagerBoot (&BootManagerMenu);\r | |
531 | } else {\r | |
532 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
533 | //\r | |
534 | // Re-scan all EFI boot options in case all the boot#### are deleted or failed to boot\r | |
535 | //\r | |
536 | // If no valid boot options exist, the boot manager will enumerate all removable media\r | |
537 | // devices followed by all fixed media devices. The order within each group is undefined.\r | |
538 | // These new default boot options are not saved to non volatile storage.The boot manger\r | |
539 | // will then attempt toboot from each boot option.\r | |
540 | // -- Chapter 3.3 Boot Manager Programming, the 2nd paragraph\r | |
541 | //\r | |
542 | EfiBootManagerConnectAll ();\r | |
543 | BootOptions = BdsEnumerateBootOptions (&BootOptionCount);\r | |
544 | \r | |
545 | if (!BootAllBootOptions (BootOptions, BootOptionCount)) {\r | |
546 | DEBUG ((EFI_D_ERROR, "[Bds]No bootable device!\n"));\r | |
547 | EfiBootManagerBoot (&BootManagerMenu);\r | |
548 | }\r | |
549 | }\r | |
550 | \r | |
551 | EfiBootManagerFreeLoadOption (&BootManagerMenu);\r | |
552 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
553 | }\r | |
554 | \r | |
555 | /**\r | |
556 | The function will go through the driver option link list, load and start\r | |
557 | every driver the driver option device path point to.\r | |
558 | \r | |
559 | @param DriverOption Input driver option array.\r | |
560 | @param DriverOptionCount Input driver option count.\r | |
561 | \r | |
562 | **/\r | |
563 | VOID\r | |
564 | LoadDrivers (\r | |
565 | IN EFI_BOOT_MANAGER_LOAD_OPTION *DriverOption,\r | |
566 | IN UINTN DriverOptionCount\r | |
567 | )\r | |
568 | {\r | |
569 | EFI_STATUS Status;\r | |
570 | UINTN Index;\r | |
571 | EFI_HANDLE ImageHandle;\r | |
572 | EFI_LOADED_IMAGE_PROTOCOL *ImageInfo;\r | |
573 | BOOLEAN ReconnectAll;\r | |
574 | \r | |
575 | ReconnectAll = FALSE;\r | |
576 | \r | |
577 | //\r | |
578 | // Process the driver option\r | |
579 | //\r | |
580 | for (Index = 0; Index < DriverOptionCount; Index++) {\r | |
581 | //\r | |
582 | // If a load option is not marked as LOAD_OPTION_ACTIVE,\r | |
583 | // the boot manager will not automatically load the option.\r | |
584 | //\r | |
585 | if ((DriverOption[Index].Attributes & LOAD_OPTION_ACTIVE) == 0) {\r | |
586 | continue;\r | |
587 | }\r | |
588 | \r | |
589 | //\r | |
590 | // If a driver load option is marked as LOAD_OPTION_FORCE_RECONNECT,\r | |
591 | // then all of the EFI drivers in the system will be disconnected and\r | |
592 | // reconnected after the last driver load option is processed.\r | |
593 | //\r | |
594 | if ((DriverOption[Index].Attributes & LOAD_OPTION_FORCE_RECONNECT) != 0) {\r | |
595 | ReconnectAll = TRUE;\r | |
596 | }\r | |
597 | \r | |
598 | //\r | |
599 | // Make sure the driver path is connected.\r | |
600 | //\r | |
601 | EfiBootManagerConnectDevicePath (DriverOption[Index].FilePath, NULL);\r | |
602 | \r | |
603 | //\r | |
604 | // Load and start the image that Driver#### describes\r | |
605 | //\r | |
606 | Status = gBS->LoadImage (\r | |
607 | FALSE,\r | |
608 | gImageHandle,\r | |
609 | DriverOption[Index].FilePath,\r | |
610 | NULL,\r | |
611 | 0,\r | |
612 | &ImageHandle\r | |
613 | );\r | |
614 | \r | |
615 | if (!EFI_ERROR (Status)) {\r | |
616 | gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid, (VOID **) &ImageInfo);\r | |
617 | \r | |
618 | //\r | |
619 | // Verify whether this image is a driver, if not,\r | |
620 | // exit it and continue to parse next load option\r | |
621 | //\r | |
622 | if (ImageInfo->ImageCodeType != EfiBootServicesCode && ImageInfo->ImageCodeType != EfiRuntimeServicesCode) {\r | |
623 | gBS->Exit (ImageHandle, EFI_INVALID_PARAMETER, 0, NULL);\r | |
624 | continue;\r | |
625 | }\r | |
626 | \r | |
627 | ImageInfo->LoadOptionsSize = DriverOption[Index].OptionalDataSize;\r | |
628 | ImageInfo->LoadOptions = DriverOption[Index].OptionalData;\r | |
629 | //\r | |
630 | // Before calling the image, enable the Watchdog Timer for\r | |
631 | // the 5 Minute period\r | |
632 | //\r | |
633 | gBS->SetWatchdogTimer (5 * 60, 0x0000, 0x00, NULL);\r | |
634 | \r | |
635 | DriverOption[Index].Status = gBS->StartImage (ImageHandle, &DriverOption[Index].ExitDataSize, &DriverOption[Index].ExitData);\r | |
636 | DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Driver Return Status = %r\n", DriverOption[Index].Status));\r | |
637 | \r | |
638 | //\r | |
639 | // Clear the Watchdog Timer after the image returns\r | |
640 | //\r | |
641 | gBS->SetWatchdogTimer (0x0000, 0x0000, 0x0000, NULL);\r | |
642 | }\r | |
643 | }\r | |
644 | \r | |
645 | //\r | |
646 | // Process the LOAD_OPTION_FORCE_RECONNECT driver option\r | |
647 | //\r | |
648 | if (ReconnectAll) {\r | |
649 | EfiBootManagerDisconnectAll ();\r | |
650 | EfiBootManagerConnectAll ();\r | |
651 | }\r | |
652 | \r | |
653 | }\r | |
654 | \r | |
655 | /**\r | |
656 | \r | |
657 | Validate input console variable data. \r | |
658 | \r | |
659 | If found the device path is not a valid device path, remove the variable.\r | |
660 | \r | |
661 | @param VariableName Input console variable name.\r | |
662 | \r | |
663 | **/\r | |
664 | VOID\r | |
665 | BdsFormalizeConsoleVariable (\r | |
666 | IN CHAR16 *VariableName\r | |
667 | )\r | |
668 | {\r | |
669 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
670 | UINTN VariableSize;\r | |
671 | EFI_STATUS Status;\r | |
672 | \r | |
673 | GetEfiGlobalVariable2 (VariableName, (VOID **) &DevicePath, &VariableSize);\r | |
674 | if ((DevicePath != NULL) && !IsDevicePathValid (DevicePath, VariableSize)) { \r | |
675 | Status = gRT->SetVariable (\r | |
676 | VariableName,\r | |
677 | &gEfiGlobalVariableGuid,\r | |
678 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
679 | 0,\r | |
680 | NULL\r | |
681 | );\r | |
682 | //\r | |
683 | // Deleting variable with current variable implementation shouldn't fail.\r | |
684 | //\r | |
685 | ASSERT_EFI_ERROR (Status);\r | |
686 | }\r | |
687 | \r | |
688 | if (DevicePath != NULL) {\r | |
689 | FreePool (DevicePath);\r | |
690 | }\r | |
691 | }\r | |
692 | \r | |
693 | /**\r | |
694 | Formalize OsIndication related variables. \r | |
695 | \r | |
696 | For OsIndicationsSupported, Create a BS/RT/UINT64 variable to report caps \r | |
697 | Delete OsIndications variable if it is not NV/BS/RT UINT64.\r | |
698 | \r | |
699 | Item 3 is used to solve case when OS corrupts OsIndications. Here simply delete this NV variable.\r | |
700 | \r | |
701 | **/\r | |
702 | VOID \r | |
703 | BdsFormalizeOSIndicationVariable (\r | |
704 | VOID\r | |
705 | )\r | |
706 | {\r | |
707 | EFI_STATUS Status;\r | |
708 | UINT64 OsIndicationSupport;\r | |
709 | UINT64 OsIndication;\r | |
710 | UINTN DataSize;\r | |
711 | UINT32 Attributes;\r | |
712 | \r | |
713 | //\r | |
714 | // OS indicater support variable\r | |
715 | //\r | |
716 | OsIndicationSupport = EFI_OS_INDICATIONS_BOOT_TO_FW_UI;\r | |
717 | Status = gRT->SetVariable (\r | |
718 | L"OsIndicationsSupported",\r | |
719 | &gEfiGlobalVariableGuid,\r | |
720 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
721 | sizeof(UINT64),\r | |
722 | &OsIndicationSupport\r | |
723 | );\r | |
724 | //\r | |
725 | // Platform needs to make sure setting volatile variable before calling 3rd party code shouldn't fail.\r | |
726 | //\r | |
727 | ASSERT_EFI_ERROR (Status);\r | |
728 | \r | |
729 | //\r | |
730 | // If OsIndications is invalid, remove it.\r | |
731 | // Invalid case\r | |
732 | // 1. Data size != UINT64\r | |
733 | // 2. OsIndication value inconsistence\r | |
734 | // 3. OsIndication attribute inconsistence\r | |
735 | //\r | |
736 | OsIndication = 0;\r | |
737 | Attributes = 0;\r | |
738 | DataSize = sizeof(UINT64);\r | |
739 | Status = gRT->GetVariable (\r | |
740 | L"OsIndications",\r | |
741 | &gEfiGlobalVariableGuid,\r | |
742 | &Attributes,\r | |
743 | &DataSize,\r | |
744 | &OsIndication\r | |
745 | );\r | |
746 | if (Status == EFI_NOT_FOUND) {\r | |
747 | return;\r | |
748 | }\r | |
749 | \r | |
750 | if ((DataSize != sizeof (OsIndication)) ||\r | |
751 | ((OsIndication & ~OsIndicationSupport) != 0) ||\r | |
752 | (Attributes != (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE))\r | |
753 | ){\r | |
754 | \r | |
755 | DEBUG ((EFI_D_ERROR, "[Bds] Unformalized OsIndications variable exists. Delete it\n"));\r | |
756 | Status = gRT->SetVariable (\r | |
757 | L"OsIndications",\r | |
758 | &gEfiGlobalVariableGuid,\r | |
759 | 0,\r | |
760 | 0,\r | |
761 | NULL\r | |
762 | );\r | |
763 | //\r | |
764 | // Deleting variable with current variable implementation shouldn't fail.\r | |
765 | //\r | |
766 | ASSERT_EFI_ERROR(Status);\r | |
767 | }\r | |
768 | }\r | |
769 | \r | |
770 | /**\r | |
771 | \r | |
772 | Validate variables. \r | |
773 | \r | |
774 | **/\r | |
775 | VOID \r | |
776 | BdsFormalizeEfiGlobalVariable (\r | |
777 | VOID\r | |
778 | )\r | |
779 | {\r | |
780 | //\r | |
781 | // Validate Console variable.\r | |
782 | //\r | |
783 | BdsFormalizeConsoleVariable (L"ConIn");\r | |
784 | BdsFormalizeConsoleVariable (L"ConOut");\r | |
785 | BdsFormalizeConsoleVariable (L"ErrOut");\r | |
786 | \r | |
787 | //\r | |
788 | // Validate OSIndication related variable.\r | |
789 | //\r | |
790 | BdsFormalizeOSIndicationVariable ();\r | |
791 | }\r | |
792 | \r | |
793 | /**\r | |
794 | \r | |
795 | Allocate a block of memory that will contain performance data to OS.\r | |
796 | \r | |
797 | **/\r | |
798 | VOID\r | |
799 | BdsAllocateMemoryForPerformanceData (\r | |
800 | VOID\r | |
801 | )\r | |
802 | {\r | |
803 | EFI_STATUS Status;\r | |
804 | EFI_PHYSICAL_ADDRESS AcpiLowMemoryBase;\r | |
805 | EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r | |
806 | \r | |
807 | AcpiLowMemoryBase = 0x0FFFFFFFFULL;\r | |
808 | \r | |
809 | //\r | |
810 | // Allocate a block of memory that will contain performance data to OS.\r | |
811 | //\r | |
812 | Status = gBS->AllocatePages (\r | |
813 | AllocateMaxAddress,\r | |
814 | EfiReservedMemoryType,\r | |
815 | EFI_SIZE_TO_PAGES (PERF_DATA_MAX_LENGTH),\r | |
816 | &AcpiLowMemoryBase\r | |
817 | );\r | |
818 | if (!EFI_ERROR (Status)) {\r | |
819 | //\r | |
820 | // Save the pointer to variable for use in S3 resume.\r | |
821 | //\r | |
822 | Status = BdsDxeSetVariableAndReportStatusCodeOnError (\r | |
823 | L"PerfDataMemAddr",\r | |
824 | &gPerformanceProtocolGuid,\r | |
825 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
826 | sizeof (EFI_PHYSICAL_ADDRESS),\r | |
827 | &AcpiLowMemoryBase\r | |
828 | );\r | |
829 | if (EFI_ERROR (Status)) {\r | |
830 | DEBUG ((EFI_D_ERROR, "[Bds] PerfDataMemAddr (%08x) cannot be saved to NV storage.\n", AcpiLowMemoryBase));\r | |
831 | }\r | |
832 | //\r | |
833 | // Mark L"PerfDataMemAddr" variable to read-only if the Variable Lock protocol exists\r | |
834 | // Still lock it even the variable cannot be saved to prevent it's set by 3rd party code.\r | |
835 | //\r | |
836 | Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);\r | |
837 | if (!EFI_ERROR (Status)) {\r | |
838 | Status = VariableLock->RequestToLock (VariableLock, L"PerfDataMemAddr", &gPerformanceProtocolGuid);\r | |
839 | ASSERT_EFI_ERROR (Status);\r | |
840 | }\r | |
841 | }\r | |
842 | }\r | |
843 | \r | |
844 | /**\r | |
845 | \r | |
846 | Service routine for BdsInstance->Entry(). Devices are connected, the\r | |
847 | consoles are initialized, and the boot options are tried.\r | |
848 | \r | |
849 | @param This Protocol Instance structure.\r | |
850 | \r | |
851 | **/\r | |
852 | VOID\r | |
853 | EFIAPI\r | |
854 | BdsEntry (\r | |
855 | IN EFI_BDS_ARCH_PROTOCOL *This\r | |
856 | )\r | |
857 | {\r | |
858 | EFI_BOOT_MANAGER_LOAD_OPTION *DriverOption;\r | |
859 | EFI_BOOT_MANAGER_LOAD_OPTION BootOption;\r | |
860 | UINTN DriverOptionCount;\r | |
861 | CHAR16 *FirmwareVendor;\r | |
862 | EFI_EVENT HotkeyTriggered;\r | |
863 | UINT64 OsIndication;\r | |
864 | UINTN DataSize;\r | |
865 | EFI_STATUS Status;\r | |
866 | UINT32 BootOptionSupport;\r | |
867 | UINT16 BootTimeOut;\r | |
868 | EDKII_VARIABLE_LOCK_PROTOCOL *VariableLock;\r | |
869 | UINTN Index;\r | |
870 | UINT16 *BootNext;\r | |
871 | CHAR16 BootNextVariableName[sizeof ("Boot####")];\r | |
872 | \r | |
873 | HotkeyTriggered = NULL;\r | |
874 | Status = EFI_SUCCESS;\r | |
875 | \r | |
876 | //\r | |
877 | // Insert the performance probe\r | |
878 | //\r | |
879 | PERF_END (NULL, "DXE", NULL, 0);\r | |
880 | PERF_START (NULL, "BDS", NULL, 0);\r | |
881 | DEBUG ((EFI_D_INFO, "[Bds] Entry...\n"));\r | |
882 | \r | |
883 | PERF_CODE (\r | |
884 | BdsAllocateMemoryForPerformanceData ();\r | |
885 | );\r | |
886 | \r | |
887 | //\r | |
888 | // Fill in FirmwareVendor and FirmwareRevision from PCDs\r | |
889 | //\r | |
890 | FirmwareVendor = (CHAR16 *) PcdGetPtr (PcdFirmwareVendor);\r | |
891 | gST->FirmwareVendor = AllocateRuntimeCopyPool (StrSize (FirmwareVendor), FirmwareVendor);\r | |
892 | ASSERT (gST->FirmwareVendor != NULL);\r | |
893 | gST->FirmwareRevision = PcdGet32 (PcdFirmwareRevision);\r | |
894 | \r | |
895 | //\r | |
896 | // Fixup Tasble CRC after we updated Firmware Vendor and Revision\r | |
897 | //\r | |
898 | gST->Hdr.CRC32 = 0;\r | |
899 | gBS->CalculateCrc32 ((VOID *) gST, sizeof (EFI_SYSTEM_TABLE), &gST->Hdr.CRC32);\r | |
900 | \r | |
901 | //\r | |
902 | // Validate Variable.\r | |
903 | //\r | |
904 | BdsFormalizeEfiGlobalVariable ();\r | |
905 | \r | |
906 | //\r | |
907 | // Mark the read-only variables if the Variable Lock protocol exists\r | |
908 | //\r | |
909 | Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **) &VariableLock);\r | |
910 | DEBUG ((EFI_D_INFO, "[BdsDxe] Locate Variable Lock protocol - %r\n", Status));\r | |
911 | if (!EFI_ERROR (Status)) {\r | |
912 | for (Index = 0; Index < sizeof (mReadOnlyVariables) / sizeof (mReadOnlyVariables[0]); Index++) {\r | |
913 | Status = VariableLock->RequestToLock (VariableLock, mReadOnlyVariables[Index], &gEfiGlobalVariableGuid);\r | |
914 | ASSERT_EFI_ERROR (Status);\r | |
915 | }\r | |
916 | }\r | |
917 | \r | |
918 | InitializeHwErrRecSupport ();\r | |
919 | \r | |
920 | //\r | |
921 | // Initialize L"Timeout" EFI global variable.\r | |
922 | //\r | |
923 | BootTimeOut = PcdGet16 (PcdPlatformBootTimeOut);\r | |
924 | if (BootTimeOut != 0xFFFF) {\r | |
925 | //\r | |
926 | // If time out value equal 0xFFFF, no need set to 0xFFFF to variable area because UEFI specification\r | |
927 | // define same behavior between no value or 0xFFFF value for L"Timeout".\r | |
928 | //\r | |
929 | BdsDxeSetVariableAndReportStatusCodeOnError (\r | |
930 | EFI_TIME_OUT_VARIABLE_NAME,\r | |
931 | &gEfiGlobalVariableGuid,\r | |
932 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
933 | sizeof (UINT16),\r | |
934 | &BootTimeOut\r | |
935 | );\r | |
936 | }\r | |
937 | \r | |
938 | //\r | |
939 | // Initialize L"BootOptionSupport" EFI global variable.\r | |
940 | // Lazy-ConIn implictly disables BDS hotkey.\r | |
941 | //\r | |
942 | BootOptionSupport = EFI_BOOT_OPTION_SUPPORT_APP;\r | |
943 | if (!PcdGetBool (PcdConInConnectOnDemand)) {\r | |
944 | BootOptionSupport |= EFI_BOOT_OPTION_SUPPORT_KEY;\r | |
945 | SET_BOOT_OPTION_SUPPORT_KEY_COUNT (BootOptionSupport, 3);\r | |
946 | }\r | |
947 | Status = gRT->SetVariable (\r | |
948 | EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME,\r | |
949 | &gEfiGlobalVariableGuid,\r | |
950 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
951 | sizeof (BootOptionSupport),\r | |
952 | &BootOptionSupport\r | |
953 | );\r | |
954 | //\r | |
955 | // Platform needs to make sure setting volatile variable before calling 3rd party code shouldn't fail.\r | |
956 | //\r | |
957 | ASSERT_EFI_ERROR (Status);\r | |
958 | \r | |
959 | //\r | |
960 | // Cache and remove the "BootNext" NV variable.\r | |
961 | //\r | |
962 | GetEfiGlobalVariable2 (EFI_BOOT_NEXT_VARIABLE_NAME, (VOID **) &BootNext, &DataSize);\r | |
963 | if (DataSize != sizeof (UINT16)) {\r | |
964 | if (BootNext != NULL) {\r | |
965 | FreePool (BootNext);\r | |
966 | }\r | |
967 | BootNext = NULL;\r | |
968 | }\r | |
969 | Status = gRT->SetVariable (\r | |
970 | EFI_BOOT_NEXT_VARIABLE_NAME,\r | |
971 | &gEfiGlobalVariableGuid,\r | |
972 | 0,\r | |
973 | 0,\r | |
974 | NULL\r | |
975 | );\r | |
976 | //\r | |
977 | // Deleting NV variable shouldn't fail unless it doesn't exist.\r | |
978 | //\r | |
979 | ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_FOUND);\r | |
980 | \r | |
981 | //\r | |
982 | // Initialize the platform language variables\r | |
983 | //\r | |
984 | InitializeLanguage (TRUE);\r | |
985 | \r | |
986 | //\r | |
987 | // Report Status Code to indicate connecting drivers will happen\r | |
988 | //\r | |
989 | REPORT_STATUS_CODE (\r | |
990 | EFI_PROGRESS_CODE,\r | |
991 | (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_DXE_BS_PC_BEGIN_CONNECTING_DRIVERS)\r | |
992 | );\r | |
993 | \r | |
994 | //\r | |
995 | // Do the platform init, can be customized by OEM/IBV\r | |
996 | // Possible things that can be done in PlatformBootManagerBeforeConsole:\r | |
997 | // > Update console variable: 1. include hot-plug devices; 2. Clear ConIn and add SOL for AMT\r | |
998 | // > Register new Driver#### or Boot####\r | |
999 | // > Register new Key####: e.g.: F12 \r | |
1000 | // > Signal ReadyToLock event\r | |
1001 | // > Authentication action: 1. connect Auth devices; 2. Identify auto logon user.\r | |
1002 | //\r | |
1003 | PERF_START (NULL, "PlatformBootManagerBeforeConsole", "BDS", 0);\r | |
1004 | PlatformBootManagerBeforeConsole ();\r | |
1005 | PERF_END (NULL, "PlatformBootManagerBeforeConsole", "BDS", 0);\r | |
1006 | \r | |
1007 | //\r | |
1008 | // Initialize hotkey service\r | |
1009 | //\r | |
1010 | EfiBootManagerStartHotkeyService (&HotkeyTriggered);\r | |
1011 | \r | |
1012 | //\r | |
1013 | // Load Driver Options\r | |
1014 | //\r | |
1015 | DriverOption = EfiBootManagerGetLoadOptions (&DriverOptionCount, LoadOptionTypeDriver);\r | |
1016 | LoadDrivers (DriverOption, DriverOptionCount);\r | |
1017 | EfiBootManagerFreeLoadOptions (DriverOption, DriverOptionCount);\r | |
1018 | \r | |
1019 | //\r | |
1020 | // Connect consoles\r | |
1021 | //\r | |
1022 | PERF_START (NULL, "EfiBootManagerConnectAllDefaultConsoles", "BDS", 0);\r | |
1023 | if (PcdGetBool (PcdConInConnectOnDemand)) {\r | |
1024 | EfiBootManagerConnectConsoleVariable (ConOut);\r | |
1025 | EfiBootManagerConnectConsoleVariable (ErrOut);\r | |
1026 | \r | |
1027 | //\r | |
1028 | // Initialize ConnectConIn event\r | |
1029 | //\r | |
1030 | Status = gBS->CreateEventEx (\r | |
1031 | EVT_NOTIFY_SIGNAL,\r | |
1032 | TPL_CALLBACK,\r | |
1033 | BdsDxeOnConnectConInCallBack,\r | |
1034 | NULL,\r | |
1035 | &gConnectConInEventGuid,\r | |
1036 | &gConnectConInEvent\r | |
1037 | );\r | |
1038 | if (EFI_ERROR (Status)) {\r | |
1039 | gConnectConInEvent = NULL;\r | |
1040 | }\r | |
1041 | } else {\r | |
1042 | EfiBootManagerConnectAllDefaultConsoles ();\r | |
1043 | }\r | |
1044 | PERF_END (NULL, "EfiBootManagerConnectAllDefaultConsoles", "BDS", 0);\r | |
1045 | \r | |
1046 | //\r | |
1047 | // Do the platform specific action after the console is ready\r | |
1048 | // Possible things that can be done in PlatformBootManagerAfterConsole:\r | |
1049 | // > Console post action:\r | |
1050 | // > Dynamically switch output mode from 100x31 to 80x25 for certain senarino\r | |
1051 | // > Signal console ready platform customized event\r | |
1052 | // > Run diagnostics like memory testing\r | |
1053 | // > Connect certain devices\r | |
1054 | // > Dispatch aditional option roms\r | |
1055 | // > Special boot: e.g.: USB boot, enter UI\r | |
1056 | // \r | |
1057 | PERF_START (NULL, "PlatformBootManagerAfterConsole", "BDS", 0);\r | |
1058 | PlatformBootManagerAfterConsole ();\r | |
1059 | PERF_END (NULL, "PlatformBootManagerAfterConsole", "BDS", 0);\r | |
1060 | \r | |
1061 | DEBUG_CODE (\r | |
1062 | EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;\r | |
1063 | UINTN BootOptionCount;\r | |
1064 | UINTN Index;\r | |
1065 | \r | |
1066 | BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);\r | |
1067 | DEBUG ((EFI_D_INFO, "[Bds]=============Dumping Boot Options=============\n"));\r | |
1068 | for (Index = 0; Index < BootOptionCount; Index++) {\r | |
1069 | DEBUG ((\r | |
1070 | EFI_D_INFO, "[Bds]Boot%04x: %s \t\t 0x%04x\n",\r | |
1071 | BootOptions[Index].OptionNumber, \r | |
1072 | BootOptions[Index].Description, \r | |
1073 | BootOptions[Index].Attributes\r | |
1074 | ));\r | |
1075 | }\r | |
1076 | DEBUG ((EFI_D_INFO, "[Bds]=============Dumping Boot Options Finished====\n"));\r | |
1077 | EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);\r | |
1078 | );\r | |
1079 | \r | |
1080 | //\r | |
1081 | // Boot to Boot Manager Menu when EFI_OS_INDICATIONS_BOOT_TO_FW_UI is set. Skip HotkeyBoot\r | |
1082 | //\r | |
1083 | DataSize = sizeof (UINT64);\r | |
1084 | Status = gRT->GetVariable (\r | |
1085 | L"OsIndications",\r | |
1086 | &gEfiGlobalVariableGuid,\r | |
1087 | NULL,\r | |
1088 | &DataSize,\r | |
1089 | &OsIndication\r | |
1090 | );\r | |
1091 | if (!EFI_ERROR(Status) && ((OsIndication & EFI_OS_INDICATIONS_BOOT_TO_FW_UI) != 0)) {\r | |
1092 | //\r | |
1093 | // Clear EFI_OS_INDICATIONS_BOOT_TO_FW_UI to acknowledge OS\r | |
1094 | // \r | |
1095 | OsIndication &= ~((UINT64) EFI_OS_INDICATIONS_BOOT_TO_FW_UI);\r | |
1096 | Status = gRT->SetVariable (\r | |
1097 | L"OsIndications",\r | |
1098 | &gEfiGlobalVariableGuid,\r | |
1099 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
1100 | sizeof(UINT64),\r | |
1101 | &OsIndication\r | |
1102 | );\r | |
1103 | //\r | |
1104 | // Changing the content without increasing its size with current variable implementation shouldn't fail.\r | |
1105 | //\r | |
1106 | ASSERT_EFI_ERROR (Status);\r | |
1107 | \r | |
1108 | //\r | |
1109 | // Follow generic rule, Call BdsDxeOnConnectConInCallBack to connect ConIn before enter UI\r | |
1110 | //\r | |
1111 | if (PcdGetBool (PcdConInConnectOnDemand)) {\r | |
1112 | BdsDxeOnConnectConInCallBack (NULL, NULL);\r | |
1113 | }\r | |
1114 | \r | |
1115 | //\r | |
1116 | // Directly boot to Boot Manager Menu.\r | |
1117 | //\r | |
1118 | EfiBootManagerGetBootManagerMenu (&BootOption);\r | |
1119 | EfiBootManagerBoot (&BootOption);\r | |
1120 | EfiBootManagerFreeLoadOption (&BootOption);\r | |
1121 | } else {\r | |
1122 | PERF_START (NULL, "BdsWait", "BDS", 0);\r | |
1123 | BdsWait (HotkeyTriggered);\r | |
1124 | PERF_END (NULL, "BdsWait", "BDS", 0);\r | |
1125 | \r | |
1126 | //\r | |
1127 | // BdsReadKeys() be removed after all keyboard drivers invoke callback in timer callback.\r | |
1128 | //\r | |
1129 | BdsReadKeys ();\r | |
1130 | \r | |
1131 | EfiBootManagerHotkeyBoot ();\r | |
1132 | }\r | |
1133 | \r | |
1134 | //\r | |
1135 | // Boot to "BootNext"\r | |
1136 | //\r | |
1137 | if (BootNext != NULL) {\r | |
1138 | UnicodeSPrint (BootNextVariableName, sizeof (BootNextVariableName), L"Boot%04x", *BootNext);\r | |
1139 | Status = EfiBootManagerVariableToLoadOption (BootNextVariableName, &BootOption);\r | |
1140 | if (!EFI_ERROR (Status)) {\r | |
1141 | EfiBootManagerBoot (&BootOption);\r | |
1142 | EfiBootManagerFreeLoadOption (&BootOption);\r | |
1143 | if (BootOption.Status == EFI_SUCCESS) {\r | |
1144 | //\r | |
1145 | // Boot to Boot Manager Menu upon EFI_SUCCESS\r | |
1146 | //\r | |
1147 | EfiBootManagerGetBootManagerMenu (&BootOption);\r | |
1148 | EfiBootManagerBoot (&BootOption);\r | |
1149 | EfiBootManagerFreeLoadOption (&BootOption);\r | |
1150 | }\r | |
1151 | }\r | |
1152 | }\r | |
1153 | \r | |
1154 | while (TRUE) {\r | |
1155 | //\r | |
1156 | // BDS select the boot device to load OS\r | |
1157 | // Try next upon boot failure\r | |
1158 | // Show Boot Manager Menu upon boot success\r | |
1159 | //\r | |
1160 | DefaultBootBehavior ();\r | |
1161 | }\r | |
1162 | }\r | |
1163 | \r | |
1164 | /**\r | |
1165 | Set the variable and report the error through status code upon failure.\r | |
1166 | \r | |
1167 | @param VariableName A Null-terminated string that is the name of the vendor's variable.\r | |
1168 | Each VariableName is unique for each VendorGuid. VariableName must\r | |
1169 | contain 1 or more characters. If VariableName is an empty string,\r | |
1170 | then EFI_INVALID_PARAMETER is returned.\r | |
1171 | @param VendorGuid A unique identifier for the vendor.\r | |
1172 | @param Attributes Attributes bitmask to set for the variable.\r | |
1173 | @param DataSize The size in bytes of the Data buffer. Unless the EFI_VARIABLE_APPEND_WRITE, \r | |
1174 | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS, or \r | |
1175 | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS attribute is set, a size of zero \r | |
1176 | causes the variable to be deleted. When the EFI_VARIABLE_APPEND_WRITE attribute is \r | |
1177 | set, then a SetVariable() call with a DataSize of zero will not cause any change to \r | |
1178 | the variable value (the timestamp associated with the variable may be updated however \r | |
1179 | even if no new data value is provided,see the description of the \r | |
1180 | EFI_VARIABLE_AUTHENTICATION_2 descriptor below. In this case the DataSize will not \r | |
1181 | be zero since the EFI_VARIABLE_AUTHENTICATION_2 descriptor will be populated). \r | |
1182 | @param Data The contents for the variable.\r | |
1183 | \r | |
1184 | @retval EFI_SUCCESS The firmware has successfully stored the variable and its data as\r | |
1185 | defined by the Attributes.\r | |
1186 | @retval EFI_INVALID_PARAMETER An invalid combination of attribute bits, name, and GUID was supplied, or the\r | |
1187 | DataSize exceeds the maximum allowed.\r | |
1188 | @retval EFI_INVALID_PARAMETER VariableName is an empty string.\r | |
1189 | @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.\r | |
1190 | @retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.\r | |
1191 | @retval EFI_WRITE_PROTECTED The variable in question is read-only.\r | |
1192 | @retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.\r | |
1193 | @retval EFI_SECURITY_VIOLATION The variable could not be written due to EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS \r | |
1194 | or EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACESS being set, but the AuthInfo \r | |
1195 | does NOT pass the validation check carried out by the firmware.\r | |
1196 | \r | |
1197 | @retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.\r | |
1198 | **/\r | |
1199 | EFI_STATUS\r | |
1200 | BdsDxeSetVariableAndReportStatusCodeOnError (\r | |
1201 | IN CHAR16 *VariableName,\r | |
1202 | IN EFI_GUID *VendorGuid,\r | |
1203 | IN UINT32 Attributes,\r | |
1204 | IN UINTN DataSize,\r | |
1205 | IN VOID *Data\r | |
1206 | )\r | |
1207 | {\r | |
1208 | EFI_STATUS Status;\r | |
1209 | EDKII_SET_VARIABLE_STATUS *SetVariableStatus;\r | |
1210 | UINTN NameSize;\r | |
1211 | \r | |
1212 | Status = gRT->SetVariable (\r | |
1213 | VariableName,\r | |
1214 | VendorGuid,\r | |
1215 | Attributes,\r | |
1216 | DataSize,\r | |
1217 | Data\r | |
1218 | );\r | |
1219 | if (EFI_ERROR (Status)) {\r | |
1220 | NameSize = StrSize (VariableName);\r | |
1221 | SetVariableStatus = AllocatePool (sizeof (EDKII_SET_VARIABLE_STATUS) + NameSize + DataSize);\r | |
1222 | if (SetVariableStatus != NULL) {\r | |
1223 | CopyGuid (&SetVariableStatus->Guid, VendorGuid);\r | |
1224 | SetVariableStatus->NameSize = NameSize;\r | |
1225 | SetVariableStatus->DataSize = DataSize;\r | |
1226 | SetVariableStatus->SetStatus = Status;\r | |
1227 | SetVariableStatus->Attributes = Attributes;\r | |
1228 | CopyMem (SetVariableStatus + 1, VariableName, NameSize);\r | |
1229 | CopyMem (((UINT8 *) (SetVariableStatus + 1)) + NameSize, Data, DataSize);\r | |
1230 | \r | |
1231 | REPORT_STATUS_CODE_EX (\r | |
1232 | EFI_ERROR_CODE,\r | |
1233 | PcdGet32 (PcdErrorCodeSetVariable),\r | |
1234 | 0,\r | |
1235 | NULL,\r | |
1236 | &gEdkiiStatusCodeDataTypeVariableGuid,\r | |
1237 | SetVariableStatus,\r | |
1238 | sizeof (EDKII_SET_VARIABLE_STATUS) + NameSize + DataSize\r | |
1239 | );\r | |
1240 | \r | |
1241 | FreePool (SetVariableStatus);\r | |
1242 | }\r | |
1243 | }\r | |
1244 | \r | |
1245 | return Status;\r | |
1246 | }\r |