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1 | /*++\r | |
2 | \r | |
3 | Copyright (c) 2006, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
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 | Cpu.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Unix Emulation Architectural Protocol Driver as defined in Tiano.\r | |
19 | This CPU module abstracts the interrupt subsystem of a platform and\r | |
20 | the CPU-specific setjump/long pair. Other services are not implemented\r | |
21 | in this driver.\r | |
22 | \r | |
23 | --*/\r | |
24 | \r | |
25 | #include "CpuDriver.h"\r | |
26 | \r | |
27 | #define EFI_CPU_DATA_MAXIMUM_LENGTH 0x100\r | |
28 | \r | |
29 | EFI_STATUS\r | |
30 | EFIAPI\r | |
31 | InitializeCpu (\r | |
32 | IN EFI_HANDLE ImageHandle,\r | |
33 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
34 | );\r | |
35 | \r | |
36 | VOID\r | |
37 | EFIAPI\r | |
38 | UnixIoProtocolNotifyFunction (\r | |
39 | IN EFI_EVENT Event,\r | |
40 | IN VOID *Context\r | |
41 | );\r | |
42 | \r | |
43 | typedef union {\r | |
44 | EFI_CPU_DATA_RECORD *DataRecord;\r | |
45 | UINT8 *Raw;\r | |
46 | } EFI_CPU_DATA_RECORD_BUFFER;\r | |
47 | \r | |
48 | EFI_SUBCLASS_TYPE1_HEADER mCpuDataRecordHeader = {\r | |
49 | EFI_PROCESSOR_SUBCLASS_VERSION, // Version\r | |
50 | sizeof (EFI_SUBCLASS_TYPE1_HEADER), // Header Size\r | |
51 | 0, // Instance, Initialize later\r | |
52 | EFI_SUBCLASS_INSTANCE_NON_APPLICABLE, // SubInstance\r | |
53 | 0 // RecordType, Initialize later\r | |
54 | };\r | |
55 | \r | |
56 | //\r | |
57 | // Service routines for the driver\r | |
58 | //\r | |
59 | STATIC\r | |
60 | EFI_STATUS\r | |
61 | EFIAPI\r | |
62 | UnixFlushCpuDataCache (\r | |
63 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
64 | IN EFI_PHYSICAL_ADDRESS Start,\r | |
65 | IN UINT64 Length,\r | |
66 | IN EFI_CPU_FLUSH_TYPE FlushType\r | |
67 | )\r | |
68 | /*++\r | |
69 | \r | |
70 | Routine Description:\r | |
71 | \r | |
72 | This routine would provide support for flushing the CPU data cache.\r | |
73 | In the case of UNIX emulation environment, this flushing is not necessary and\r | |
74 | is thus not implemented.\r | |
75 | \r | |
76 | Arguments:\r | |
77 | \r | |
78 | Pointer to CPU Architectural Protocol interface\r | |
79 | Start adddress in memory to flush\r | |
80 | Length of memory to flush\r | |
81 | Flush type\r | |
82 | \r | |
83 | Returns:\r | |
84 | \r | |
85 | Status\r | |
86 | EFI_SUCCESS\r | |
87 | \r | |
88 | --*/\r | |
89 | // TODO: This - add argument and description to function comment\r | |
90 | // TODO: FlushType - add argument and description to function comment\r | |
91 | // TODO: EFI_UNSUPPORTED - add return value to function comment\r | |
92 | {\r | |
93 | if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {\r | |
94 | //\r | |
95 | // Only WB flush is supported. We actually need do nothing on UNIX emulator\r | |
96 | // environment. Classify this to follow EFI spec\r | |
97 | //\r | |
98 | return EFI_SUCCESS;\r | |
99 | }\r | |
100 | //\r | |
101 | // Other flush types are not supported by UNIX emulator\r | |
102 | //\r | |
103 | return EFI_UNSUPPORTED;\r | |
104 | }\r | |
105 | \r | |
106 | STATIC\r | |
107 | EFI_STATUS\r | |
108 | EFIAPI\r | |
109 | UnixEnableInterrupt (\r | |
110 | IN EFI_CPU_ARCH_PROTOCOL *This\r | |
111 | )\r | |
112 | /*++\r | |
113 | \r | |
114 | Routine Description:\r | |
115 | \r | |
116 | This routine provides support for emulation of the interrupt enable of the\r | |
117 | the system. For our purposes, CPU enable is just a BOOLEAN that the Timer \r | |
118 | Architectural Protocol observes in order to defer behaviour while in its\r | |
119 | emulated interrupt, or timer tick.\r | |
120 | \r | |
121 | Arguments:\r | |
122 | \r | |
123 | Pointer to CPU Architectural Protocol interface\r | |
124 | \r | |
125 | Returns:\r | |
126 | \r | |
127 | Status\r | |
128 | EFI_SUCCESS\r | |
129 | \r | |
130 | --*/\r | |
131 | // TODO: This - add argument and description to function comment\r | |
132 | {\r | |
133 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
134 | \r | |
135 | Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r | |
136 | Private->InterruptState = TRUE;\r | |
137 | return EFI_SUCCESS;\r | |
138 | }\r | |
139 | \r | |
140 | STATIC\r | |
141 | EFI_STATUS\r | |
142 | EFIAPI\r | |
143 | UnixDisableInterrupt (\r | |
144 | IN EFI_CPU_ARCH_PROTOCOL *This\r | |
145 | )\r | |
146 | /*++\r | |
147 | \r | |
148 | Routine Description:\r | |
149 | \r | |
150 | This routine provides support for emulation of the interrupt disable of the\r | |
151 | the system. For our purposes, CPU enable is just a BOOLEAN that the Timer \r | |
152 | Architectural Protocol observes in order to defer behaviour while in its\r | |
153 | emulated interrupt, or timer tick.\r | |
154 | \r | |
155 | Arguments:\r | |
156 | \r | |
157 | Pointer to CPU Architectural Protocol interface\r | |
158 | \r | |
159 | Returns:\r | |
160 | \r | |
161 | Status\r | |
162 | EFI_SUCCESS\r | |
163 | \r | |
164 | --*/\r | |
165 | // TODO: This - add argument and description to function comment\r | |
166 | {\r | |
167 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
168 | \r | |
169 | Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r | |
170 | Private->InterruptState = FALSE;\r | |
171 | return EFI_SUCCESS;\r | |
172 | }\r | |
173 | \r | |
174 | STATIC\r | |
175 | EFI_STATUS\r | |
176 | EFIAPI\r | |
177 | UnixGetInterruptState (\r | |
178 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
179 | OUT BOOLEAN *State\r | |
180 | )\r | |
181 | /*++\r | |
182 | \r | |
183 | Routine Description:\r | |
184 | \r | |
185 | This routine provides support for emulation of the interrupt disable of the\r | |
186 | the system. For our purposes, CPU enable is just a BOOLEAN that the Timer \r | |
187 | Architectural Protocol observes in order to defer behaviour while in its\r | |
188 | emulated interrupt, or timer tick.\r | |
189 | \r | |
190 | Arguments:\r | |
191 | \r | |
192 | Pointer to CPU Architectural Protocol interface\r | |
193 | \r | |
194 | Returns:\r | |
195 | \r | |
196 | Status\r | |
197 | EFI_SUCCESS\r | |
198 | \r | |
199 | --*/\r | |
200 | // TODO: This - add argument and description to function comment\r | |
201 | // TODO: State - add argument and description to function comment\r | |
202 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
203 | {\r | |
204 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
205 | \r | |
206 | if (State == NULL) {\r | |
207 | return EFI_INVALID_PARAMETER;\r | |
208 | }\r | |
209 | \r | |
210 | Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r | |
211 | *State = Private->InterruptState;\r | |
212 | return EFI_SUCCESS;\r | |
213 | }\r | |
214 | \r | |
215 | STATIC\r | |
216 | EFI_STATUS\r | |
217 | EFIAPI\r | |
218 | UnixInit (\r | |
219 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
220 | IN EFI_CPU_INIT_TYPE InitType\r | |
221 | )\r | |
222 | /*++\r | |
223 | \r | |
224 | Routine Description:\r | |
225 | \r | |
226 | This routine would support generation of a CPU INIT. At \r | |
227 | present, this code does not provide emulation. \r | |
228 | \r | |
229 | Arguments:\r | |
230 | \r | |
231 | Pointer to CPU Architectural Protocol interface\r | |
232 | INIT Type\r | |
233 | \r | |
234 | Returns:\r | |
235 | \r | |
236 | Status\r | |
237 | EFI_UNSUPPORTED - not yet implemented\r | |
238 | \r | |
239 | --*/\r | |
240 | // TODO: This - add argument and description to function comment\r | |
241 | // TODO: InitType - add argument and description to function comment\r | |
242 | {\r | |
243 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
244 | \r | |
245 | Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r | |
246 | return EFI_UNSUPPORTED;\r | |
247 | }\r | |
248 | \r | |
249 | STATIC\r | |
250 | EFI_STATUS\r | |
251 | EFIAPI\r | |
252 | UnixRegisterInterruptHandler (\r | |
253 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
254 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
255 | IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler\r | |
256 | )\r | |
257 | /*++\r | |
258 | \r | |
259 | Routine Description:\r | |
260 | \r | |
261 | This routine would support registration of an interrupt handler. At \r | |
262 | present, this code does not provide emulation. \r | |
263 | \r | |
264 | Arguments:\r | |
265 | \r | |
266 | Pointer to CPU Architectural Protocol interface\r | |
267 | Pointer to interrupt handlers\r | |
268 | Interrupt type\r | |
269 | \r | |
270 | Returns:\r | |
271 | \r | |
272 | Status\r | |
273 | EFI_UNSUPPORTED - not yet implemented\r | |
274 | \r | |
275 | --*/\r | |
276 | // TODO: This - add argument and description to function comment\r | |
277 | // TODO: InterruptType - add argument and description to function comment\r | |
278 | // TODO: InterruptHandler - add argument and description to function comment\r | |
279 | {\r | |
280 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
281 | \r | |
282 | //\r | |
283 | // Do parameter checking for EFI spec conformance\r | |
284 | //\r | |
285 | if (InterruptType < 0 || InterruptType > 0xff) {\r | |
286 | return EFI_UNSUPPORTED;\r | |
287 | }\r | |
288 | //\r | |
289 | // Do nothing for Nt32 emulation\r | |
290 | //\r | |
291 | Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r | |
292 | return EFI_UNSUPPORTED;\r | |
293 | }\r | |
294 | \r | |
295 | STATIC\r | |
296 | EFI_STATUS\r | |
297 | EFIAPI\r | |
298 | UnixGetTimerValue (\r | |
299 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
300 | IN UINT32 TimerIndex,\r | |
301 | OUT UINT64 *TimerValue,\r | |
302 | OUT UINT64 *TimerPeriod OPTIONAL\r | |
303 | )\r | |
304 | /*++\r | |
305 | \r | |
306 | Routine Description:\r | |
307 | \r | |
308 | This routine would support querying of an on-CPU timer. At present, \r | |
309 | this code does not provide timer emulation. \r | |
310 | \r | |
311 | Arguments:\r | |
312 | \r | |
313 | This - Pointer to CPU Architectural Protocol interface\r | |
314 | TimerIndex - Index of given CPU timer\r | |
315 | TimerValue - Output of the timer\r | |
316 | TimerPeriod - Output of the timer period\r | |
317 | \r | |
318 | Returns:\r | |
319 | \r | |
320 | EFI_UNSUPPORTED - not yet implemented\r | |
321 | EFI_INVALID_PARAMETER - TimeValue is NULL\r | |
322 | \r | |
323 | --*/\r | |
324 | {\r | |
325 | if (TimerValue == NULL) {\r | |
326 | return EFI_INVALID_PARAMETER;\r | |
327 | }\r | |
328 | \r | |
329 | //\r | |
330 | // No timer supported\r | |
331 | //\r | |
332 | return EFI_UNSUPPORTED;\r | |
333 | }\r | |
334 | \r | |
335 | STATIC\r | |
336 | EFI_STATUS\r | |
337 | EFIAPI\r | |
338 | UnixSetMemoryAttributes (\r | |
339 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
340 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
341 | IN UINT64 Length,\r | |
342 | IN UINT64 Attributes\r | |
343 | )\r | |
344 | /*++\r | |
345 | \r | |
346 | Routine Description:\r | |
347 | \r | |
348 | This routine would support querying of an on-CPU timer. At present, \r | |
349 | this code does not provide timer emulation. \r | |
350 | \r | |
351 | Arguments:\r | |
352 | \r | |
353 | Pointer to CPU Architectural Protocol interface\r | |
354 | Start address of memory region\r | |
355 | The size in bytes of the memory region\r | |
356 | The bit mask of attributes to set for the memory region\r | |
357 | \r | |
358 | Returns:\r | |
359 | \r | |
360 | Status\r | |
361 | EFI_UNSUPPORTED - not yet implemented\r | |
362 | \r | |
363 | --*/\r | |
364 | // TODO: This - add argument and description to function comment\r | |
365 | // TODO: BaseAddress - add argument and description to function comment\r | |
366 | // TODO: Length - add argument and description to function comment\r | |
367 | // TODO: Attributes - add argument and description to function comment\r | |
368 | // TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
369 | {\r | |
370 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
371 | \r | |
372 | //\r | |
373 | // Check for invalid parameter for Spec conformance\r | |
374 | //\r | |
375 | if (Length == 0) {\r | |
376 | return EFI_INVALID_PARAMETER;\r | |
377 | }\r | |
378 | \r | |
379 | //\r | |
380 | // Do nothing for Nt32 emulation\r | |
381 | //\r | |
382 | Private = CPU_ARCH_PROTOCOL_PRIVATE_DATA_FROM_THIS (This);\r | |
383 | return EFI_UNSUPPORTED;\r | |
384 | }\r | |
385 | \r | |
386 | \r | |
387 | EFI_STATUS\r | |
388 | EFIAPI\r | |
389 | InitializeCpu (\r | |
390 | IN EFI_HANDLE ImageHandle,\r | |
391 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
392 | )\r | |
393 | /*++\r | |
394 | \r | |
395 | Routine Description:\r | |
396 | \r | |
397 | Initialize the state information for the CPU Architectural Protocol\r | |
398 | \r | |
399 | Arguments:\r | |
400 | \r | |
401 | ImageHandle of the loaded driver\r | |
402 | Pointer to the System Table\r | |
403 | \r | |
404 | Returns:\r | |
405 | \r | |
406 | Status\r | |
407 | \r | |
408 | EFI_SUCCESS - protocol instance can be published \r | |
409 | EFI_OUT_OF_RESOURCES - cannot allocate protocol data structure\r | |
410 | EFI_DEVICE_ERROR - cannot create the thread\r | |
411 | \r | |
412 | --*/\r | |
413 | // TODO: SystemTable - add argument and description to function comment\r | |
414 | {\r | |
415 | EFI_STATUS Status;\r | |
416 | EFI_EVENT Event;\r | |
417 | CPU_ARCH_PROTOCOL_PRIVATE *Private;\r | |
418 | VOID *Registration;\r | |
419 | \r | |
420 | Status = gBS->AllocatePool (\r | |
421 | EfiBootServicesData,\r | |
422 | sizeof (CPU_ARCH_PROTOCOL_PRIVATE),\r | |
423 | (VOID **)&Private\r | |
424 | );\r | |
425 | ASSERT_EFI_ERROR (Status);\r | |
426 | \r | |
427 | Private->Signature = CPU_ARCH_PROT_PRIVATE_SIGNATURE;\r | |
428 | Private->Cpu.FlushDataCache = UnixFlushCpuDataCache;\r | |
429 | Private->Cpu.EnableInterrupt = UnixEnableInterrupt;\r | |
430 | Private->Cpu.DisableInterrupt = UnixDisableInterrupt;\r | |
431 | Private->Cpu.GetInterruptState = UnixGetInterruptState;\r | |
432 | Private->Cpu.Init = UnixInit;\r | |
433 | Private->Cpu.RegisterInterruptHandler = UnixRegisterInterruptHandler;\r | |
434 | Private->Cpu.GetTimerValue = UnixGetTimerValue;\r | |
435 | Private->Cpu.SetMemoryAttributes = UnixSetMemoryAttributes;\r | |
436 | \r | |
437 | Private->Cpu.NumberOfTimers = 0;\r | |
438 | Private->Cpu.DmaBufferAlignment = 4;\r | |
439 | \r | |
440 | Private->InterruptState = TRUE;\r | |
441 | \r | |
442 | Private->CpuIo.Mem.Read = CpuMemoryServiceRead;\r | |
443 | Private->CpuIo.Mem.Write = CpuMemoryServiceWrite;\r | |
444 | Private->CpuIo.Io.Read = CpuIoServiceRead;\r | |
445 | Private->CpuIo.Io.Write = CpuIoServiceWrite;\r | |
446 | \r | |
447 | \r | |
448 | Private->Handle = NULL;\r | |
449 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
450 | &Private->Handle,\r | |
451 | &gEfiCpuArchProtocolGuid, &Private->Cpu,\r | |
452 | &gEfiCpuIoProtocolGuid, &Private->CpuIo,\r | |
453 | NULL\r | |
454 | );\r | |
455 | ASSERT_EFI_ERROR (Status);\r | |
456 | \r | |
457 | //\r | |
458 | // Install notify function to store processor data to HII database and data hub.\r | |
459 | //\r | |
460 | Status = gBS->CreateEvent (\r | |
461 | EFI_EVENT_NOTIFY_SIGNAL,\r | |
462 | EFI_TPL_CALLBACK,\r | |
463 | UnixIoProtocolNotifyFunction,\r | |
464 | ImageHandle,\r | |
465 | &Event\r | |
466 | );\r | |
467 | ASSERT (!EFI_ERROR (Status));\r | |
468 | \r | |
469 | Status = gBS->RegisterProtocolNotify (\r | |
470 | &gEfiUnixIoProtocolGuid,\r | |
471 | Event,\r | |
472 | &Registration\r | |
473 | );\r | |
474 | ASSERT (!EFI_ERROR (Status));\r | |
475 | \r | |
476 | //\r | |
477 | // Should be at EFI_D_INFO, but lets us now things are running\r | |
478 | //\r | |
479 | DEBUG ((EFI_D_ERROR, "CPU Architectural Protocol Loaded\n"));\r | |
480 | \r | |
481 | \r | |
482 | \r | |
483 | return Status;\r | |
484 | }\r | |
485 | \r | |
486 | UINTN\r | |
487 | Atoi (\r | |
488 | UINT16 *String\r | |
489 | )\r | |
490 | /*++\r | |
491 | \r | |
492 | Routine Description:\r | |
493 | Convert a unicode string to a UINTN\r | |
494 | \r | |
495 | Arguments:\r | |
496 | String - Unicode string.\r | |
497 | \r | |
498 | Returns: \r | |
499 | UINTN of the number represented by String. \r | |
500 | \r | |
501 | --*/\r | |
502 | {\r | |
503 | UINTN Number;\r | |
504 | UINT16 *Str;\r | |
505 | \r | |
506 | //\r | |
507 | // skip preceeding white space\r | |
508 | //\r | |
509 | Str = String;\r | |
510 | while ((*Str) && (*Str == ' ' || *Str == '"')) {\r | |
511 | Str++;\r | |
512 | }\r | |
513 | //\r | |
514 | // Convert ot a Number\r | |
515 | //\r | |
516 | Number = 0;\r | |
517 | while (*Str != '\0') {\r | |
518 | if ((*Str >= '0') && (*Str <= '9')) {\r | |
519 | Number = (Number * 10) +*Str - '0';\r | |
520 | } else {\r | |
521 | break;\r | |
522 | }\r | |
523 | \r | |
524 | Str++;\r | |
525 | }\r | |
526 | \r | |
527 | return Number;\r | |
528 | }\r | |
529 | \r | |
530 | VOID\r | |
531 | EFIAPI\r | |
532 | UnixIoProtocolNotifyFunction (\r | |
533 | IN EFI_EVENT Event,\r | |
534 | IN VOID *Context\r | |
535 | )\r | |
536 | /*++\r | |
537 | \r | |
538 | Routine Description:\r | |
539 | This function will log processor version and frequency data to data hub.\r | |
540 | \r | |
541 | Arguments:\r | |
542 | Event - Event whose notification function is being invoked.\r | |
543 | Context - Pointer to the notification function's context.\r | |
544 | \r | |
545 | Returns:\r | |
546 | None.\r | |
547 | \r | |
548 | --*/\r | |
549 | {\r | |
550 | EFI_STATUS Status;\r | |
551 | EFI_CPU_DATA_RECORD_BUFFER RecordBuffer;\r | |
552 | EFI_DATA_RECORD_HEADER *Record;\r | |
553 | EFI_SUBCLASS_TYPE1_HEADER *DataHeader;\r | |
554 | UINT32 HeaderSize;\r | |
555 | UINT32 TotalSize;\r | |
556 | UINTN HandleCount;\r | |
557 | UINTN HandleIndex;\r | |
558 | UINT64 MonotonicCount;\r | |
559 | BOOLEAN RecordFound;\r | |
560 | EFI_HANDLE *HandleBuffer;\r | |
561 | EFI_UNIX_IO_PROTOCOL *UnixIo;\r | |
562 | EFI_DATA_HUB_PROTOCOL *DataHub;\r | |
563 | EFI_HII_PROTOCOL *Hii;\r | |
564 | EFI_HII_HANDLE StringHandle;\r | |
565 | EFI_HII_PACKAGES *PackageList;\r | |
566 | STRING_REF Token;\r | |
567 | \r | |
568 | DataHub = NULL;\r | |
569 | Token = 0;\r | |
570 | MonotonicCount = 0;\r | |
571 | RecordFound = FALSE;\r | |
572 | \r | |
573 | //\r | |
574 | // Retrieve the list of all handles from the handle database\r | |
575 | //\r | |
576 | Status = gBS->LocateHandleBuffer (\r | |
577 | AllHandles,\r | |
578 | &gEfiUnixIoProtocolGuid,\r | |
579 | NULL,\r | |
580 | &HandleCount,\r | |
581 | &HandleBuffer\r | |
582 | );\r | |
583 | if (EFI_ERROR (Status)) {\r | |
584 | return ;\r | |
585 | }\r | |
586 | //\r | |
587 | // Locate HII protocol\r | |
588 | //\r | |
589 | Status = gBS->LocateProtocol (&gEfiHiiProtocolGuid, NULL, (VOID **)&Hii);\r | |
590 | if (EFI_ERROR (Status)) {\r | |
591 | return ;\r | |
592 | }\r | |
593 | //\r | |
594 | // Locate DataHub protocol.\r | |
595 | //\r | |
596 | Status = gBS->LocateProtocol (&gEfiDataHubProtocolGuid, NULL, (VOID **)&DataHub);\r | |
597 | if (EFI_ERROR (Status)) {\r | |
598 | return ;\r | |
599 | }\r | |
600 | //\r | |
601 | // Initialize data record header\r | |
602 | //\r | |
603 | mCpuDataRecordHeader.Instance = 1;\r | |
604 | HeaderSize = sizeof (EFI_SUBCLASS_TYPE1_HEADER);\r | |
605 | \r | |
606 | RecordBuffer.Raw = AllocatePool (HeaderSize + EFI_CPU_DATA_MAXIMUM_LENGTH);\r | |
607 | if (RecordBuffer.Raw == NULL) {\r | |
608 | return ;\r | |
609 | }\r | |
610 | \r | |
611 | CopyMem (RecordBuffer.Raw, &mCpuDataRecordHeader, HeaderSize);\r | |
612 | \r | |
613 | //\r | |
614 | // Search the Handle array to find the CPU model and speed information\r | |
615 | //\r | |
616 | for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {\r | |
617 | Status = gBS->OpenProtocol (\r | |
618 | HandleBuffer[HandleIndex],\r | |
619 | &gEfiUnixIoProtocolGuid,\r | |
620 | (VOID **)&UnixIo,\r | |
621 | Context,\r | |
622 | NULL,\r | |
623 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
624 | );\r | |
625 | if (EFI_ERROR (Status)) {\r | |
626 | continue;\r | |
627 | }\r | |
628 | \r | |
629 | if ((UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) &&\r | |
630 | CompareGuid (UnixIo->TypeGuid, &gEfiUnixCPUModelGuid)\r | |
631 | ) {\r | |
632 | //\r | |
633 | // Check if this record has been stored in data hub\r | |
634 | //\r | |
635 | do {\r | |
636 | Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);\r | |
637 | if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {\r | |
638 | DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);\r | |
639 | if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&\r | |
640 | (DataHeader->RecordType == ProcessorVersionRecordType)\r | |
641 | ) {\r | |
642 | RecordFound = TRUE;\r | |
643 | }\r | |
644 | }\r | |
645 | } while (MonotonicCount != 0);\r | |
646 | \r | |
647 | if (RecordFound) {\r | |
648 | RecordFound = FALSE;\r | |
649 | continue;\r | |
650 | }\r | |
651 | //\r | |
652 | // Initialize strings to HII database\r | |
653 | //\r | |
654 | PackageList = PreparePackages (1, &gEfiProcessorProducerGuid, STRING_ARRAY_NAME);\r | |
655 | \r | |
656 | Status = Hii->NewPack (Hii, PackageList, &StringHandle);\r | |
657 | ASSERT (!EFI_ERROR (Status));\r | |
658 | \r | |
659 | gBS->FreePool (PackageList);\r | |
660 | \r | |
661 | //\r | |
662 | // Store processor version data record to data hub\r | |
663 | //\r | |
664 | Status = Hii->NewString (Hii, NULL, StringHandle, &Token, UnixIo->EnvString);\r | |
665 | ASSERT (!EFI_ERROR (Status));\r | |
666 | \r | |
667 | RecordBuffer.DataRecord->DataRecordHeader.RecordType = ProcessorVersionRecordType;\r | |
668 | RecordBuffer.DataRecord->VariableRecord.ProcessorVersion = Token;\r | |
669 | TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_VERSION_DATA);\r | |
670 | \r | |
671 | Status = DataHub->LogData (\r | |
672 | DataHub,\r | |
673 | &gEfiProcessorSubClassGuid,\r | |
674 | &gEfiProcessorProducerGuid,\r | |
675 | EFI_DATA_RECORD_CLASS_DATA,\r | |
676 | RecordBuffer.Raw,\r | |
677 | TotalSize\r | |
678 | );\r | |
679 | }\r | |
680 | \r | |
681 | if ((UnixIo->UnixThunk->Signature == EFI_UNIX_THUNK_PROTOCOL_SIGNATURE) &&\r | |
682 | CompareGuid (UnixIo->TypeGuid, &gEfiUnixCPUSpeedGuid)\r | |
683 | ) {\r | |
684 | //\r | |
685 | // Check if this record has been stored in data hub\r | |
686 | //\r | |
687 | do {\r | |
688 | Status = DataHub->GetNextRecord (DataHub, &MonotonicCount, NULL, &Record);\r | |
689 | if (Record->DataRecordClass == EFI_DATA_RECORD_CLASS_DATA) {\r | |
690 | DataHeader = (EFI_SUBCLASS_TYPE1_HEADER *) (Record + 1);\r | |
691 | if (CompareGuid (&Record->DataRecordGuid, &gEfiProcessorSubClassGuid) &&\r | |
692 | (DataHeader->RecordType == ProcessorCoreFrequencyRecordType)\r | |
693 | ) {\r | |
694 | RecordFound = TRUE;\r | |
695 | }\r | |
696 | }\r | |
697 | } while (MonotonicCount != 0);\r | |
698 | \r | |
699 | if (RecordFound) {\r | |
700 | RecordFound = FALSE;\r | |
701 | continue;\r | |
702 | }\r | |
703 | //\r | |
704 | // Store CPU frequency data record to data hub\r | |
705 | //\r | |
706 | RecordBuffer.DataRecord->DataRecordHeader.RecordType = ProcessorCoreFrequencyRecordType;\r | |
707 | RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Value = (UINT16) Atoi (UnixIo->EnvString);\r | |
708 | RecordBuffer.DataRecord->VariableRecord.ProcessorCoreFrequency.Exponent = 6;\r | |
709 | TotalSize = HeaderSize + sizeof (EFI_PROCESSOR_CORE_FREQUENCY_DATA);\r | |
710 | \r | |
711 | Status = DataHub->LogData (\r | |
712 | DataHub,\r | |
713 | &gEfiProcessorSubClassGuid,\r | |
714 | &gEfiProcessorProducerGuid,\r | |
715 | EFI_DATA_RECORD_CLASS_DATA,\r | |
716 | RecordBuffer.Raw,\r | |
717 | TotalSize\r | |
718 | );\r | |
719 | \r | |
720 | gBS->FreePool (RecordBuffer.Raw);\r | |
721 | }\r | |
722 | \r | |
723 | gBS->CloseProtocol (\r | |
724 | HandleBuffer[HandleIndex],\r | |
725 | &gEfiUnixIoProtocolGuid,\r | |
726 | Context,\r | |
727 | NULL\r | |
728 | );\r | |
729 | }\r | |
730 | }\r |