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3eb9473e | 1 | /*++\r |
2 | \r | |
3e99020d | 3 | Copyright (c) 2005 - 2010, Intel Corporation. All rights reserved.<BR>\r |
4ea9375a | 4 | This program and the accompanying materials \r |
3eb9473e | 5 | are licensed and made available under the terms and conditions of the BSD License \r |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | RuntimeLib.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Light weight lib to support Tiano drivers.\r | |
19 | \r | |
20 | --*/\r | |
21 | \r | |
22 | #include "Tiano.h"\r | |
23 | #include "EfiRuntimeLib.h"\r | |
3e99020d | 24 | #include "PeiHob.h"\r |
3eb9473e | 25 | #include EFI_PROTOCOL_DEFINITION (CpuIo)\r |
26 | #include EFI_PROTOCOL_DEFINITION (FirmwareVolumeBlock)\r | |
27 | #include EFI_GUID_DEFINITION (StatusCodeCallerId)\r | |
3e99020d | 28 | #include EFI_GUID_DEFINITION (Hob)\r |
3eb9473e | 29 | #include EFI_ARCH_PROTOCOL_DEFINITION (StatusCode)\r |
2a6433fe LG |
30 | #include EFI_PROTOCOL_DEFINITION (SmmStatusCode)\r |
31 | #include EFI_PROTOCOL_DEFINITION (SmmBase)\r | |
3eb9473e | 32 | \r |
33 | //\r | |
34 | // Driver Lib Module Globals\r | |
35 | //\r | |
36 | static EFI_RUNTIME_SERVICES *mRT;\r | |
37 | static EFI_EVENT mRuntimeNotifyEvent = NULL;\r | |
38 | static EFI_EVENT mEfiVirtualNotifyEvent = NULL;\r | |
39 | static BOOLEAN mRuntimeLibInitialized = FALSE;\r | |
40 | static BOOLEAN mEfiGoneVirtual = FALSE;\r | |
2a6433fe | 41 | static BOOLEAN mInSmm = FALSE;\r |
3eb9473e | 42 | \r |
43 | //\r | |
44 | // Runtime Global, but you should use the Lib functions\r | |
45 | //\r | |
46 | EFI_CPU_IO_PROTOCOL *gCpuIo;\r | |
47 | BOOLEAN mEfiAtRuntime = FALSE;\r | |
48 | FVB_ENTRY *mFvbEntry;\r | |
2a6433fe | 49 | EFI_SMM_STATUS_CODE_PROTOCOL *gSmmStatusCodeProtocol = NULL;\r |
3eb9473e | 50 | \r |
ce7a12fb | 51 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r |
3e99020d LG |
52 | \r |
53 | EFI_REPORT_STATUS_CODE gReportStatusCode = NULL;\r | |
54 | EFI_EVENT gEfiStatusCodeNotifyEvent = NULL;\r | |
55 | \r | |
56 | VOID\r | |
57 | EFIAPI\r | |
58 | OnStatusCodeInstall (\r | |
59 | IN EFI_EVENT Event,\r | |
60 | IN VOID *Context\r | |
61 | )\r | |
62 | {\r | |
63 | EFI_STATUS Status;\r | |
64 | EFI_STATUS_CODE_PROTOCOL *StatusCode;\r | |
65 | \r | |
66 | Status = gBS->LocateProtocol (&gEfiStatusCodeRuntimeProtocolGuid, NULL, (VOID **) &StatusCode);\r | |
67 | if (!EFI_ERROR (Status)) {\r | |
68 | gReportStatusCode = StatusCode->ReportStatusCode;\r | |
69 | }\r | |
70 | }\r | |
71 | \r | |
72 | EFI_STATUS\r | |
73 | GetPeiProtocol (\r | |
74 | IN EFI_GUID *ProtocolGuid,\r | |
75 | IN VOID **Interface\r | |
76 | )\r | |
77 | /*++\r | |
78 | \r | |
79 | Routine Description:\r | |
80 | \r | |
81 | Searches for a Protocol Interface passed from PEI through a HOB\r | |
82 | \r | |
83 | Arguments:\r | |
84 | \r | |
85 | ProtocolGuid - The Protocol GUID to search for in the HOB List\r | |
86 | \r | |
87 | Interface - A pointer to the interface for the Protocol GUID\r | |
88 | \r | |
89 | Returns:\r | |
90 | \r | |
91 | EFI_SUCCESS - The Protocol GUID was found and its interface is returned in Interface\r | |
92 | \r | |
93 | EFI_NOT_FOUND - The Protocol GUID was not found in the HOB List\r | |
94 | \r | |
95 | --*/\r | |
96 | {\r | |
97 | EFI_STATUS Status;\r | |
98 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
99 | \r | |
100 | //\r | |
101 | // Get Hob list\r | |
102 | //\r | |
103 | Status = EfiLibGetSystemConfigurationTable (&gEfiHobListGuid, (VOID **) &GuidHob.Raw);\r | |
104 | if (EFI_ERROR (Status)) {\r | |
105 | return Status;\r | |
106 | }\r | |
107 | \r | |
108 | for (Status = EFI_NOT_FOUND; EFI_ERROR (Status);) {\r | |
109 | if (END_OF_HOB_LIST (GuidHob)) {\r | |
110 | Status = EFI_NOT_FOUND;\r | |
111 | break;\r | |
112 | }\r | |
113 | \r | |
114 | if (GET_HOB_TYPE (GuidHob) == EFI_HOB_TYPE_GUID_EXTENSION) {\r | |
115 | if (EfiCompareGuid (ProtocolGuid, &GuidHob.Guid->Name)) {\r | |
116 | Status = EFI_SUCCESS;\r | |
117 | *Interface = (VOID *) *(UINTN *) ((UINT8 *) (&GuidHob.Guid->Name) + sizeof (EFI_GUID));\r | |
118 | }\r | |
119 | }\r | |
120 | \r | |
121 | GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r | |
122 | }\r | |
123 | \r | |
124 | return Status;\r | |
125 | }\r | |
126 | \r | |
ce7a12fb | 127 | #endif\r |
3eb9473e | 128 | \r |
129 | EFI_STATUS\r | |
130 | EfiConvertPointer (\r | |
131 | IN UINTN DebugDisposition,\r | |
132 | IN OUT VOID *Address\r | |
133 | )\r | |
134 | /*++\r | |
135 | \r | |
136 | Routine Description:\r | |
137 | \r | |
138 | Determines the new virtual address that is to be used on subsequent memory accesses.\r | |
139 | \r | |
140 | Arguments:\r | |
141 | \r | |
142 | DebugDisposition - Supplies type information for the pointer being converted.\r | |
143 | Address - A pointer to a pointer that is to be fixed to be the value needed\r | |
144 | for the new virtual address mappings being applied.\r | |
145 | \r | |
146 | Returns:\r | |
147 | \r | |
148 | Status code\r | |
149 | \r | |
150 | --*/\r | |
151 | {\r | |
152 | return mRT->ConvertPointer (DebugDisposition, Address);\r | |
153 | }\r | |
154 | \r | |
155 | EFI_STATUS\r | |
156 | EfiConvertInternalPointer (\r | |
157 | IN OUT VOID *Address\r | |
158 | )\r | |
159 | /*++\r | |
160 | \r | |
161 | Routine Description:\r | |
162 | \r | |
163 | Call EfiConvertPointer() to convert internal pointer.\r | |
164 | \r | |
165 | Arguments:\r | |
166 | \r | |
167 | Address - A pointer to a pointer that is to be fixed to be the value needed\r | |
168 | for the new virtual address mappings being applied.\r | |
169 | \r | |
170 | Returns:\r | |
171 | \r | |
172 | Status code\r | |
173 | \r | |
174 | --*/\r | |
175 | {\r | |
176 | return EfiConvertPointer (EFI_INTERNAL_POINTER, Address);\r | |
177 | }\r | |
178 | \r | |
179 | VOID\r | |
180 | EFIAPI\r | |
181 | EfiRuntimeLibFvbVirtualNotifyEvent (\r | |
182 | IN EFI_EVENT Event,\r | |
183 | IN VOID *Context\r | |
184 | )\r | |
185 | /*++\r | |
186 | \r | |
187 | Routine Description:\r | |
188 | \r | |
189 | Convert all pointers in mFvbEntry after ExitBootServices.\r | |
190 | \r | |
191 | Arguments:\r | |
192 | \r | |
193 | Event - The Event that is being processed\r | |
194 | \r | |
195 | Context - Event Context\r | |
196 | \r | |
197 | Returns:\r | |
198 | \r | |
199 | None\r | |
200 | \r | |
201 | --*/\r | |
202 | {\r | |
203 | UINTN Index;\r | |
204 | if (mFvbEntry != NULL) {\r | |
205 | for (Index = 0; Index < MAX_FVB_COUNT; Index++) {\r | |
206 | if (NULL != mFvbEntry[Index].Fvb) {\r | |
207 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->GetBlockSize);\r | |
208 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->GetPhysicalAddress);\r | |
209 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->GetVolumeAttributes);\r | |
210 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->SetVolumeAttributes);\r | |
211 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->Read);\r | |
212 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->Write);\r | |
213 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb->EraseBlocks);\r | |
214 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].Fvb);\r | |
215 | }\r | |
216 | \r | |
217 | if (NULL != mFvbEntry[Index].FvbExtension) {\r | |
218 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].FvbExtension->EraseFvbCustomBlock);\r | |
219 | EfiConvertInternalPointer ((VOID **) &mFvbEntry[Index].FvbExtension);\r | |
220 | }\r | |
221 | }\r | |
222 | \r | |
223 | EfiConvertInternalPointer ((VOID **) &mFvbEntry);\r | |
224 | }\r | |
225 | }\r | |
226 | \r | |
227 | VOID\r | |
228 | EFIAPI\r | |
229 | RuntimeDriverExitBootServices (\r | |
230 | IN EFI_EVENT Event,\r | |
231 | IN VOID *Context\r | |
232 | )\r | |
233 | /*++\r | |
234 | \r | |
235 | Routine Description:\r | |
236 | \r | |
237 | Set AtRuntime flag as TRUE after ExitBootServices\r | |
238 | \r | |
239 | Arguments:\r | |
240 | \r | |
241 | Event - The Event that is being processed\r | |
242 | \r | |
243 | Context - Event Context\r | |
244 | \r | |
245 | Returns: \r | |
246 | \r | |
247 | None\r | |
248 | \r | |
249 | --*/\r | |
250 | {\r | |
251 | mEfiAtRuntime = TRUE;\r | |
252 | }\r | |
253 | \r | |
254 | extern BOOLEAN gEfiFvbInitialized;\r | |
255 | \r | |
256 | VOID\r | |
257 | EFIAPI\r | |
258 | EfiRuntimeLibVirtualNotifyEvent (\r | |
259 | IN EFI_EVENT Event,\r | |
260 | IN VOID *Context\r | |
261 | )\r | |
262 | /*++\r | |
263 | \r | |
264 | Routine Description:\r | |
265 | \r | |
266 | Fixup internal data so that EFI can be call in virtual mode.\r | |
267 | Call the passed in Child Notify event and convert any pointers in \r | |
268 | lib to virtual mode.\r | |
269 | \r | |
270 | Arguments:\r | |
271 | \r | |
272 | Event - The Event that is being processed\r | |
273 | \r | |
274 | Context - Event Context\r | |
275 | \r | |
276 | Returns: \r | |
277 | \r | |
278 | None\r | |
279 | \r | |
280 | --*/\r | |
281 | {\r | |
282 | EFI_EVENT_NOTIFY ChildNotifyEventHandler;\r | |
283 | \r | |
284 | if (Context != NULL) {\r | |
285 | ChildNotifyEventHandler = (EFI_EVENT_NOTIFY) (UINTN) Context;\r | |
286 | ChildNotifyEventHandler (Event, NULL);\r | |
287 | }\r | |
288 | \r | |
289 | if (gEfiFvbInitialized) {\r | |
290 | EfiRuntimeLibFvbVirtualNotifyEvent (Event, Context);\r | |
291 | }\r | |
292 | //\r | |
293 | // Update global for Runtime Services Table and IO\r | |
294 | //\r | |
295 | EfiConvertInternalPointer ((VOID **) &gCpuIo);\r | |
ce7a12fb | 296 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r |
3e99020d LG |
297 | if (gReportStatusCode != NULL) {\r |
298 | EfiConvertInternalPointer ((VOID **) &gReportStatusCode);\r | |
3eb9473e | 299 | }\r |
ce7a12fb | 300 | #endif\r |
3eb9473e | 301 | EfiConvertInternalPointer ((VOID **) &mRT);\r |
302 | \r | |
303 | //\r | |
304 | // Clear out BootService globals\r | |
305 | //\r | |
306 | gBS = NULL;\r | |
307 | gST = NULL;\r | |
308 | mEfiGoneVirtual = TRUE;\r | |
309 | }\r | |
310 | \r | |
311 | EFI_STATUS\r | |
312 | EfiInitializeRuntimeDriverLib (\r | |
313 | IN EFI_HANDLE ImageHandle,\r | |
314 | IN EFI_SYSTEM_TABLE *SystemTable,\r | |
315 | IN EFI_EVENT_NOTIFY GoVirtualChildEvent\r | |
316 | )\r | |
317 | /*++\r | |
318 | \r | |
319 | Routine Description:\r | |
320 | \r | |
321 | Intialize runtime Driver Lib if it has not yet been initialized. \r | |
322 | \r | |
323 | Arguments:\r | |
324 | \r | |
325 | ImageHandle - The firmware allocated handle for the EFI image.\r | |
326 | \r | |
327 | SystemTable - A pointer to the EFI System Table.\r | |
328 | \r | |
329 | GoVirtualChildEvent - Caller can register a virtual notification event.\r | |
330 | \r | |
331 | Returns: \r | |
332 | \r | |
333 | EFI_STATUS always returns EFI_SUCCESS except EFI_ALREADY_STARTED if already started.\r | |
334 | \r | |
335 | --*/\r | |
336 | {\r | |
337 | EFI_STATUS Status;\r | |
3e99020d LG |
338 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r |
339 | VOID *Registration;\r | |
340 | #endif\r | |
3eb9473e | 341 | \r |
342 | if (mRuntimeLibInitialized) {\r | |
343 | return EFI_ALREADY_STARTED;\r | |
344 | }\r | |
345 | \r | |
346 | mRuntimeLibInitialized = TRUE;\r | |
347 | \r | |
348 | gST = SystemTable;\r | |
349 | ASSERT (gST != NULL);\r | |
350 | \r | |
351 | gBS = SystemTable->BootServices;\r | |
352 | ASSERT (gBS != NULL);\r | |
353 | mRT = SystemTable->RuntimeServices;\r | |
354 | ASSERT (mRT != NULL);\r | |
355 | \r | |
356 | Status = EfiLibGetSystemConfigurationTable (&gEfiDxeServicesTableGuid, (VOID **) &gDS);\r | |
357 | ASSERT_EFI_ERROR (Status);\r | |
358 | \r | |
ce7a12fb | 359 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r |
3e99020d LG |
360 | //\r |
361 | // Register EFI_STATUS_CODE_PROTOCOL notify function\r | |
362 | //\r | |
363 | Status = gBS->CreateEvent (\r | |
364 | EFI_EVENT_NOTIFY_SIGNAL,\r | |
365 | EFI_TPL_CALLBACK,\r | |
366 | OnStatusCodeInstall,\r | |
367 | NULL,\r | |
368 | &gEfiStatusCodeNotifyEvent\r | |
369 | );\r | |
370 | ASSERT_EFI_ERROR (Status);\r | |
371 | \r | |
372 | Status = gBS->RegisterProtocolNotify (\r | |
373 | &gEfiStatusCodeRuntimeProtocolGuid,\r | |
374 | gEfiStatusCodeNotifyEvent,\r | |
375 | &Registration\r | |
376 | );\r | |
377 | ASSERT_EFI_ERROR (Status);\r | |
378 | \r | |
379 | gBS->SignalEvent (gEfiStatusCodeNotifyEvent);\r | |
ce7a12fb | 380 | #endif\r |
3eb9473e | 381 | \r |
4b79797e | 382 | Status = gBS->LocateProtocol (&gEfiCpuIoProtocolGuid, NULL, (VOID **) &gCpuIo);\r |
3eb9473e | 383 | if (EFI_ERROR (Status)) {\r |
384 | gCpuIo = NULL;\r | |
385 | }\r | |
386 | \r | |
387 | //\r | |
388 | // Register our ExitBootServices () notify function\r | |
389 | //\r | |
390 | Status = gBS->CreateEvent (\r | |
391 | EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,\r | |
392 | EFI_TPL_NOTIFY,\r | |
393 | RuntimeDriverExitBootServices,\r | |
394 | NULL,\r | |
395 | &mRuntimeNotifyEvent\r | |
396 | );\r | |
397 | ASSERT_EFI_ERROR (Status);\r | |
398 | \r | |
399 | //\r | |
400 | // Register SetVirtualAddressMap () notify function\r | |
401 | //\r | |
402 | Status = gBS->CreateEvent (\r | |
403 | EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,\r | |
404 | EFI_TPL_NOTIFY,\r | |
405 | EfiRuntimeLibVirtualNotifyEvent,\r | |
406 | (VOID *) (UINTN) GoVirtualChildEvent,\r | |
407 | &mEfiVirtualNotifyEvent\r | |
408 | );\r | |
409 | ASSERT_EFI_ERROR (Status);\r | |
410 | \r | |
411 | return EFI_SUCCESS;\r | |
412 | }\r | |
413 | \r | |
414 | EFI_STATUS\r | |
415 | EfiShutdownRuntimeDriverLib (\r | |
416 | VOID\r | |
417 | )\r | |
418 | /*++\r | |
419 | \r | |
420 | Routine Description:\r | |
421 | \r | |
422 | This routine will free some resources which have been allocated in\r | |
423 | EfiInitializeRuntimeDriverLib(). If a runtime driver exits with an error, \r | |
424 | it must call this routine to free the allocated resource before the exiting.\r | |
425 | \r | |
426 | Arguments:\r | |
427 | \r | |
428 | None\r | |
429 | \r | |
430 | Returns: \r | |
431 | \r | |
432 | EFI_SUCCESS - Shotdown the Runtime Driver Lib successfully\r | |
433 | EFI_UNSUPPORTED - Runtime Driver lib was not initialized at all\r | |
434 | \r | |
435 | --*/\r | |
436 | {\r | |
437 | EFI_STATUS Status;\r | |
438 | \r | |
439 | if (!mRuntimeLibInitialized) {\r | |
440 | //\r | |
441 | // You must call EfiInitializeRuntimeDriverLib() first\r | |
442 | //\r | |
443 | return EFI_UNSUPPORTED;\r | |
444 | }\r | |
445 | \r | |
446 | mRuntimeLibInitialized = FALSE;\r | |
447 | \r | |
448 | //\r | |
449 | // Close our ExitBootServices () notify function\r | |
450 | //\r | |
451 | if (mRuntimeNotifyEvent != NULL) {\r | |
452 | Status = gBS->CloseEvent (mRuntimeNotifyEvent);\r | |
453 | ASSERT_EFI_ERROR (Status);\r | |
454 | }\r | |
455 | \r | |
456 | //\r | |
457 | // Close SetVirtualAddressMap () notify function\r | |
458 | //\r | |
459 | if (mEfiVirtualNotifyEvent != NULL) {\r | |
460 | Status = gBS->CloseEvent (mEfiVirtualNotifyEvent);\r | |
461 | ASSERT_EFI_ERROR (Status);\r | |
462 | }\r | |
463 | \r | |
3e99020d LG |
464 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r |
465 | //\r | |
466 | // Close EfiStatusCodeRuntimeProtocol notify function\r | |
467 | //\r | |
468 | if (gEfiStatusCodeNotifyEvent != NULL) {\r | |
469 | Status = gBS->CloseEvent (gEfiStatusCodeNotifyEvent);\r | |
470 | ASSERT_EFI_ERROR (Status);\r | |
471 | }\r | |
472 | #endif\r | |
473 | \r | |
3eb9473e | 474 | return EFI_SUCCESS;\r |
475 | }\r | |
476 | \r | |
477 | EFI_STATUS\r | |
478 | EfiInitializeSmmDriverLib (\r | |
479 | IN EFI_HANDLE ImageHandle,\r | |
480 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
481 | )\r | |
482 | /*++\r | |
483 | \r | |
484 | Routine Description:\r | |
485 | \r | |
486 | Intialize runtime Driver Lib if it has not yet been initialized. \r | |
487 | \r | |
488 | Arguments:\r | |
489 | \r | |
490 | ImageHandle - The firmware allocated handle for the EFI image.\r | |
491 | \r | |
492 | SystemTable - A pointer to the EFI System Table.\r | |
493 | \r | |
494 | Returns: \r | |
495 | \r | |
496 | EFI_STATUS always returns EFI_SUCCESS except EFI_ALREADY_STARTED if already started.\r | |
497 | \r | |
498 | --*/\r | |
499 | {\r | |
2a6433fe LG |
500 | EFI_STATUS Status;\r |
501 | EFI_SMM_BASE_PROTOCOL *SmmBase;\r | |
3eb9473e | 502 | \r |
503 | if (mRuntimeLibInitialized) {\r | |
504 | return EFI_ALREADY_STARTED;\r | |
505 | }\r | |
506 | \r | |
507 | mRuntimeLibInitialized = TRUE;\r | |
508 | \r | |
509 | gST = SystemTable;\r | |
510 | ASSERT (gST != NULL);\r | |
511 | \r | |
512 | gBS = SystemTable->BootServices;\r | |
513 | ASSERT (gBS != NULL);\r | |
514 | mRT = SystemTable->RuntimeServices;\r | |
515 | ASSERT (mRT != NULL);\r | |
516 | \r | |
3e99020d | 517 | //\r |
2a6433fe | 518 | // Check whether it is in SMM mode.\r |
3e99020d | 519 | //\r |
2a6433fe LG |
520 | Status = gBS->LocateProtocol (&gEfiSmmBaseProtocolGuid, NULL, &SmmBase);\r |
521 | if (!EFI_ERROR (Status)) {\r | |
522 | SmmBase->InSmm (SmmBase, &mInSmm);\r | |
523 | }\r | |
3e99020d | 524 | \r |
2a6433fe LG |
525 | //\r |
526 | // Directly locate SmmStatusCode protocol\r | |
527 | //\r | |
528 | Status = gBS->LocateProtocol (&gEfiSmmStatusCodeProtocolGuid, NULL, &gSmmStatusCodeProtocol);\r | |
529 | if (EFI_ERROR (Status)) {\r | |
530 | gSmmStatusCodeProtocol = NULL;\r | |
531 | }\r | |
3eb9473e | 532 | \r |
4b79797e | 533 | Status = gBS->LocateProtocol (&gEfiCpuIoProtocolGuid, NULL, (VOID **) &gCpuIo);\r |
3eb9473e | 534 | if (EFI_ERROR (Status)) {\r |
535 | gCpuIo = NULL;\r | |
536 | }\r | |
537 | \r | |
538 | return EFI_SUCCESS;\r | |
539 | }\r | |
540 | \r | |
541 | BOOLEAN\r | |
542 | EfiAtRuntime (\r | |
543 | VOID\r | |
544 | )\r | |
545 | /*++\r | |
546 | \r | |
547 | Routine Description:\r | |
548 | Return TRUE if ExitBootServices () has been called\r | |
549 | \r | |
550 | Arguments:\r | |
551 | NONE\r | |
552 | \r | |
553 | Returns: \r | |
554 | TRUE - If ExitBootServices () has been called\r | |
555 | \r | |
556 | --*/\r | |
557 | {\r | |
558 | return mEfiAtRuntime;\r | |
559 | }\r | |
560 | \r | |
561 | BOOLEAN\r | |
562 | EfiGoneVirtual (\r | |
563 | VOID\r | |
564 | )\r | |
565 | /*++\r | |
566 | \r | |
567 | Routine Description:\r | |
568 | Return TRUE if SetVirtualAddressMap () has been called\r | |
569 | \r | |
570 | Arguments:\r | |
571 | NONE\r | |
572 | \r | |
573 | Returns: \r | |
574 | TRUE - If SetVirtualAddressMap () has been called\r | |
575 | \r | |
576 | --*/\r | |
577 | {\r | |
578 | return mEfiGoneVirtual;\r | |
579 | }\r | |
580 | //\r | |
581 | // The following functions hide the mRT local global from the call to\r | |
582 | // runtime service in the EFI system table.\r | |
583 | //\r | |
584 | EFI_STATUS\r | |
585 | EfiGetTime (\r | |
586 | OUT EFI_TIME *Time,\r | |
587 | OUT EFI_TIME_CAPABILITIES *Capabilities\r | |
588 | )\r | |
589 | /*++\r | |
590 | \r | |
591 | Routine Description:\r | |
592 | \r | |
593 | Returns the current time and date information, and the time-keeping \r | |
594 | capabilities of the hardware platform.\r | |
595 | \r | |
596 | Arguments:\r | |
597 | \r | |
598 | Time - A pointer to storage to receive a snapshot of the current time.\r | |
fd0d281b | 599 | Capabilities - An optional pointer to a buffer to receive the real time clock device's\r |
3eb9473e | 600 | capabilities.\r |
601 | \r | |
602 | Returns:\r | |
603 | \r | |
604 | Status code\r | |
605 | \r | |
606 | --*/\r | |
607 | {\r | |
608 | return mRT->GetTime (Time, Capabilities);\r | |
609 | }\r | |
610 | \r | |
611 | EFI_STATUS\r | |
612 | EfiSetTime (\r | |
613 | IN EFI_TIME *Time\r | |
614 | )\r | |
615 | /*++\r | |
616 | \r | |
617 | Routine Description:\r | |
618 | \r | |
619 | Sets the current local time and date information.\r | |
620 | \r | |
621 | Arguments:\r | |
622 | \r | |
623 | Time - A pointer to the current time.\r | |
624 | \r | |
625 | Returns:\r | |
626 | \r | |
627 | Status code\r | |
628 | \r | |
629 | --*/\r | |
630 | {\r | |
631 | return mRT->SetTime (Time);\r | |
632 | }\r | |
633 | \r | |
634 | EFI_STATUS\r | |
635 | EfiGetWakeupTime (\r | |
636 | OUT BOOLEAN *Enabled,\r | |
637 | OUT BOOLEAN *Pending,\r | |
638 | OUT EFI_TIME *Time\r | |
639 | )\r | |
640 | /*++\r | |
641 | \r | |
642 | Routine Description:\r | |
643 | \r | |
644 | Returns the current wakeup alarm clock setting.\r | |
645 | \r | |
646 | Arguments:\r | |
647 | \r | |
648 | Enabled - Indicates if the alarm is currently enabled or disabled.\r | |
649 | Pending - Indicates if the alarm signal is pending and requires acknowledgement.\r | |
650 | Time - The current alarm setting.\r | |
651 | \r | |
652 | Returns:\r | |
653 | \r | |
654 | Status code\r | |
655 | \r | |
656 | --*/\r | |
657 | {\r | |
658 | return mRT->GetWakeupTime (Enabled, Pending, Time);\r | |
659 | }\r | |
660 | \r | |
661 | EFI_STATUS\r | |
662 | EfiSetWakeupTime (\r | |
663 | IN BOOLEAN Enable,\r | |
664 | IN EFI_TIME *Time\r | |
665 | )\r | |
666 | /*++\r | |
667 | \r | |
668 | Routine Description:\r | |
669 | \r | |
670 | Sets the system wakeup alarm clock time.\r | |
671 | \r | |
672 | Arguments:\r | |
673 | \r | |
674 | Enable - Enable or disable the wakeup alarm.\r | |
675 | Time - If Enable is TRUE, the time to set the wakeup alarm for.\r | |
676 | If Enable is FALSE, then this parameter is optional, and may be NULL.\r | |
677 | \r | |
678 | Returns:\r | |
679 | \r | |
680 | Status code\r | |
681 | \r | |
682 | --*/\r | |
683 | {\r | |
684 | return mRT->SetWakeupTime (Enable, Time);\r | |
685 | }\r | |
686 | \r | |
687 | EFI_STATUS\r | |
688 | EfiGetVariable (\r | |
689 | IN CHAR16 *VariableName,\r | |
690 | IN EFI_GUID * VendorGuid,\r | |
691 | OUT UINT32 *Attributes OPTIONAL,\r | |
692 | IN OUT UINTN *DataSize,\r | |
693 | OUT VOID *Data\r | |
694 | )\r | |
695 | /*++\r | |
696 | \r | |
697 | Routine Description:\r | |
698 | \r | |
699 | Returns the value of a variable.\r | |
700 | \r | |
701 | Arguments:\r | |
702 | \r | |
703 | VariableName - A Null-terminated Unicode string that is the name of the\r | |
fd0d281b | 704 | vendor's variable.\r |
3eb9473e | 705 | VendorGuid - A unique identifier for the vendor.\r |
706 | Attributes - If not NULL, a pointer to the memory location to return the\r | |
707 | attributes bitmask for the variable.\r | |
708 | DataSize - On input, the size in bytes of the return Data buffer.\r | |
709 | On output the size of data returned in Data.\r | |
710 | Data - The buffer to return the contents of the variable.\r | |
711 | \r | |
712 | Returns:\r | |
713 | \r | |
714 | Status code\r | |
715 | \r | |
716 | --*/\r | |
717 | {\r | |
718 | return mRT->GetVariable (VariableName, VendorGuid, Attributes, DataSize, Data);\r | |
719 | }\r | |
720 | \r | |
721 | EFI_STATUS\r | |
722 | EfiGetNextVariableName (\r | |
723 | IN OUT UINTN *VariableNameSize,\r | |
724 | IN OUT CHAR16 *VariableName,\r | |
725 | IN OUT EFI_GUID *VendorGuid\r | |
726 | )\r | |
727 | /*++\r | |
728 | \r | |
729 | Routine Description:\r | |
730 | \r | |
731 | Enumerates the current variable names.\r | |
732 | \r | |
733 | Arguments:\r | |
734 | \r | |
735 | VariableNameSize - The size of the VariableName buffer.\r | |
736 | VariableName - On input, supplies the last VariableName that was returned\r | |
737 | by GetNextVariableName(). \r | |
738 | On output, returns the Nullterminated Unicode string of the\r | |
739 | current variable.\r | |
740 | VendorGuid - On input, supplies the last VendorGuid that was returned by\r | |
741 | GetNextVariableName(). \r | |
742 | On output, returns the VendorGuid of the current variable.\r | |
743 | \r | |
744 | Returns:\r | |
745 | \r | |
746 | Status code\r | |
747 | \r | |
748 | --*/\r | |
749 | {\r | |
750 | return mRT->GetNextVariableName (VariableNameSize, VariableName, VendorGuid);\r | |
751 | }\r | |
752 | \r | |
753 | EFI_STATUS\r | |
754 | EfiSetVariable (\r | |
755 | IN CHAR16 *VariableName,\r | |
756 | IN EFI_GUID *VendorGuid,\r | |
757 | IN UINT32 Attributes,\r | |
758 | IN UINTN DataSize,\r | |
759 | IN VOID *Data\r | |
760 | )\r | |
761 | /*++\r | |
762 | \r | |
763 | Routine Description:\r | |
764 | \r | |
765 | Sets the value of a variable.\r | |
766 | \r | |
767 | Arguments:\r | |
768 | \r | |
769 | VariableName - A Null-terminated Unicode string that is the name of the\r | |
fd0d281b | 770 | vendor's variable.\r |
3eb9473e | 771 | VendorGuid - A unique identifier for the vendor.\r |
772 | Attributes - Attributes bitmask to set for the variable.\r | |
773 | DataSize - The size in bytes of the Data buffer.\r | |
774 | Data - The contents for the variable.\r | |
775 | \r | |
776 | Returns:\r | |
777 | \r | |
778 | Status code\r | |
779 | \r | |
780 | --*/\r | |
781 | {\r | |
782 | return mRT->SetVariable (VariableName, VendorGuid, Attributes, DataSize, Data);\r | |
783 | }\r | |
784 | \r | |
785 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r | |
786 | \r | |
787 | EFI_STATUS\r | |
788 | EfiQueryVariableInfo (\r | |
789 | IN UINT32 Attributes,\r | |
790 | OUT UINT64 *MaximumVariableStorageSize,\r | |
791 | OUT UINT64 *RemainingVariableStorageSize,\r | |
792 | OUT UINT64 *MaximumVariableSize\r | |
793 | )\r | |
794 | \r | |
795 | /*++\r | |
796 | \r | |
797 | Routine Description:\r | |
798 | \r | |
799 | This code returns information about the EFI variables.\r | |
800 | \r | |
801 | Arguments:\r | |
802 | \r | |
803 | Attributes Attributes bitmask to specify the type of variables \r | |
804 | on which to return information.\r | |
805 | MaximumVariableStorageSize Pointer to the maximum size of the storage space available\r | |
806 | for the EFI variables associated with the attributes specified.\r | |
807 | RemainingVariableStorageSize Pointer to the remaining size of the storage space available \r | |
808 | for the EFI variables associated with the attributes specified.\r | |
809 | MaximumVariableSize Pointer to the maximum size of the individual EFI variables\r | |
810 | associated with the attributes specified.\r | |
811 | \r | |
812 | Returns:\r | |
813 | \r | |
814 | Status code\r | |
815 | \r | |
816 | --*/\r | |
817 | {\r | |
818 | return mRT->QueryVariableInfo (Attributes, MaximumVariableStorageSize, RemainingVariableStorageSize, MaximumVariableSize);\r | |
819 | }\r | |
820 | \r | |
821 | #endif\r | |
822 | \r | |
823 | \r | |
824 | EFI_STATUS\r | |
825 | EfiGetNextHighMonotonicCount (\r | |
826 | OUT UINT32 *HighCount\r | |
827 | )\r | |
828 | /*++\r | |
829 | \r | |
830 | Routine Description:\r | |
831 | \r | |
fd0d281b | 832 | Returns the next high 32 bits of the platform's monotonic counter.\r |
3eb9473e | 833 | \r |
834 | Arguments:\r | |
835 | \r | |
836 | HighCount - Pointer to returned value.\r | |
837 | \r | |
838 | Returns:\r | |
839 | \r | |
840 | Status code\r | |
841 | \r | |
842 | --*/\r | |
843 | {\r | |
844 | return mRT->GetNextHighMonotonicCount (HighCount);\r | |
845 | }\r | |
846 | \r | |
847 | VOID\r | |
848 | EfiResetSystem (\r | |
849 | IN EFI_RESET_TYPE ResetType,\r | |
850 | IN EFI_STATUS ResetStatus,\r | |
851 | IN UINTN DataSize,\r | |
852 | IN CHAR16 *ResetData\r | |
853 | )\r | |
854 | /*++\r | |
855 | \r | |
856 | Routine Description:\r | |
857 | \r | |
858 | Resets the entire platform.\r | |
859 | \r | |
860 | Arguments:\r | |
861 | \r | |
862 | ResetType - The type of reset to perform.\r | |
863 | ResetStatus - The status code for the reset.\r | |
864 | DataSize - The size, in bytes, of ResetData.\r | |
865 | ResetData - A data buffer that includes a Null-terminated Unicode string, optionally\r | |
866 | followed by additional binary data.\r | |
867 | \r | |
868 | Returns:\r | |
869 | \r | |
870 | None\r | |
871 | \r | |
872 | --*/\r | |
873 | {\r | |
874 | mRT->ResetSystem (ResetType, ResetStatus, DataSize, ResetData);\r | |
875 | }\r | |
876 | \r | |
877 | EFI_STATUS\r | |
878 | EfiReportStatusCode (\r | |
879 | IN EFI_STATUS_CODE_TYPE CodeType,\r | |
880 | IN EFI_STATUS_CODE_VALUE Value,\r | |
881 | IN UINT32 Instance,\r | |
3e99020d LG |
882 | IN EFI_GUID *CallerId OPTIONAL,\r |
883 | IN EFI_STATUS_CODE_DATA *Data OPTIONAL \r | |
3eb9473e | 884 | )\r |
885 | /*++\r | |
886 | \r | |
887 | Routine Description:\r | |
888 | \r | |
889 | Status Code reporter\r | |
890 | \r | |
891 | Arguments:\r | |
892 | \r | |
893 | CodeType - Type of Status Code.\r | |
894 | \r | |
895 | Value - Value to output for Status Code.\r | |
896 | \r | |
897 | Instance - Instance Number of this status code.\r | |
898 | \r | |
899 | CallerId - ID of the caller of this status code.\r | |
900 | \r | |
901 | Data - Optional data associated with this status code.\r | |
902 | \r | |
903 | Returns:\r | |
904 | \r | |
905 | Status code\r | |
906 | \r | |
907 | --*/\r | |
908 | {\r | |
3e99020d | 909 | EFI_STATUS Status;\r |
2a6433fe LG |
910 | \r |
911 | if (mInSmm) {\r | |
912 | if (gSmmStatusCodeProtocol == NULL) {\r | |
913 | return EFI_UNSUPPORTED;\r | |
914 | }\r | |
915 | Status = gSmmStatusCodeProtocol->ReportStatusCode (gSmmStatusCodeProtocol, CodeType, Value, Instance, CallerId, Data);\r | |
916 | return Status;\r | |
917 | }\r | |
bdabfae7 | 918 | \r |
3e99020d LG |
919 | #if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r |
920 | if (gReportStatusCode == NULL) {\r | |
921 | //\r | |
922 | // Because we've installed the protocol notification on EfiStatusCodeRuntimeProtocol,\r | |
923 | // running here indicates that the StatusCode driver has not started yet.\r | |
924 | //\r | |
ce7a12fb | 925 | if (EfiAtRuntime ()) {\r |
3e99020d LG |
926 | //\r |
927 | // Running here only when StatusCode driver never starts.\r | |
928 | //\r | |
ce7a12fb | 929 | return EFI_UNSUPPORTED;\r |
930 | }\r | |
3e99020d LG |
931 | \r |
932 | //\r | |
933 | // Try to get the PEI version of ReportStatusCode.\r | |
934 | //\r | |
935 | Status = GetPeiProtocol (&gEfiStatusCodeRuntimeProtocolGuid, (VOID **) &gReportStatusCode);\r | |
2349cf6f | 936 | if (EFI_ERROR (Status) || (gReportStatusCode == NULL)) {\r |
ce7a12fb | 937 | return EFI_UNSUPPORTED;\r |
938 | }\r | |
939 | }\r | |
3e99020d | 940 | Status = gReportStatusCode (CodeType, Value, Instance, CallerId, Data);\r |
ce7a12fb | 941 | #else\r |
942 | if (mRT == NULL) {\r | |
943 | return EFI_UNSUPPORTED;\r | |
944 | }\r | |
945 | //\r | |
946 | // Check whether EFI_RUNTIME_SERVICES has Tiano Extension\r | |
947 | //\r | |
948 | Status = EFI_UNSUPPORTED;\r | |
949 | if (mRT->Hdr.Revision == EFI_SPECIFICATION_VERSION &&\r | |
950 | mRT->Hdr.HeaderSize == sizeof (EFI_RUNTIME_SERVICES) &&\r | |
951 | mRT->ReportStatusCode != NULL) {\r | |
3eb9473e | 952 | Status = mRT->ReportStatusCode (CodeType, Value, Instance, CallerId, Data);\r |
ce7a12fb | 953 | }\r |
3eb9473e | 954 | #endif\r |
955 | return Status;\r | |
956 | }\r |