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878ddf1f | 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 | PlDebugSupport.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | IPF specific debug support functions\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | //\r | |
25 | // Master EFI header file\r | |
26 | //\r | |
27 | #include "Tiano.h"\r | |
28 | \r | |
29 | //\r | |
30 | // Common library header files\r | |
31 | //\r | |
32 | #include "EfiDriverLib.h"\r | |
33 | \r | |
34 | //\r | |
35 | // Produced protocols\r | |
36 | //\r | |
37 | #include EFI_PROTOCOL_DEFINITION (DebugSupport)\r | |
38 | \r | |
39 | //\r | |
40 | // private header files\r | |
41 | //\r | |
42 | #include "plDebugSupport.h"\r | |
43 | \r | |
44 | typedef struct {\r | |
45 | UINT64 low;\r | |
46 | UINT64 high;\r | |
47 | } BUNDLE;\r | |
48 | \r | |
49 | //\r | |
50 | // number of bundles to swap in ivt\r | |
51 | //\r | |
52 | #define NUM_BUNDLES_IN_STUB 5\r | |
53 | #define NUM_IVT_ENTRIES 64\r | |
54 | \r | |
55 | typedef struct {\r | |
56 | BUNDLE OrigBundles[NUM_BUNDLES_IN_STUB];\r | |
57 | VOID (*RegisteredCallback) ();\r | |
58 | } IVT_ENTRY;\r | |
59 | \r | |
60 | STATIC\r | |
61 | EFI_STATUS\r | |
62 | ManageIvtEntryTable (\r | |
63 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
64 | IN BUNDLE NewBundles[4],\r | |
65 | IN VOID (*NewCallback) ()\r | |
66 | );\r | |
67 | \r | |
68 | STATIC\r | |
69 | VOID\r | |
70 | HookEntry (\r | |
71 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
72 | IN BUNDLE NewBundles[4],\r | |
73 | IN VOID (*NewCallback) ()\r | |
74 | );\r | |
75 | \r | |
76 | STATIC\r | |
77 | VOID\r | |
78 | UnhookEntry (\r | |
79 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
80 | );\r | |
81 | \r | |
82 | STATIC\r | |
83 | VOID\r | |
84 | ChainExternalInterrupt (\r | |
85 | IN VOID (*NewCallback) ()\r | |
86 | );\r | |
87 | \r | |
88 | STATIC\r | |
89 | VOID\r | |
90 | UnchainExternalInterrupt (\r | |
91 | VOID\r | |
92 | );\r | |
93 | \r | |
94 | STATIC\r | |
95 | VOID\r | |
96 | GetHandlerEntryPoint (\r | |
97 | UINTN HandlerIndex,\r | |
98 | VOID **EntryPoint\r | |
99 | );\r | |
100 | \r | |
101 | IVT_ENTRY IvtEntryTable[NUM_IVT_ENTRIES];\r | |
102 | \r | |
103 | //\r | |
104 | // IPF context record is overallocated by 512 bytes to guarantee a 512 byte alignment exists\r | |
105 | // within the buffer and still have a large enough buffer to hold a whole IPF context record.\r | |
106 | //\r | |
107 | UINT8 IpfContextBuf[sizeof (EFI_SYSTEM_CONTEXT_IPF) + 512];\r | |
108 | \r | |
109 | //\r | |
110 | // The PatchSaveBuffer is used to store the original bundles from the IVT where it is patched\r | |
111 | // with the common handler.\r | |
112 | //\r | |
113 | UINT8 PatchSaveBuffer[0x400];\r | |
114 | UINTN ExternalInterruptCount;\r | |
115 | \r | |
116 | EFI_STATUS\r | |
117 | plInitializeDebugSupportDriver (\r | |
118 | VOID\r | |
119 | )\r | |
120 | /*++\r | |
121 | \r | |
122 | Routine Description:\r | |
123 | IPF specific DebugSupport driver initialization. Must be public because it's\r | |
124 | referenced from DebugSupport.c\r | |
125 | \r | |
126 | Arguments:\r | |
127 | \r | |
128 | Returns:\r | |
129 | \r | |
130 | EFI_SUCCESS\r | |
131 | \r | |
132 | --*/\r | |
133 | {\r | |
134 | gBS->SetMem (IvtEntryTable, sizeof (IvtEntryTable), 0);\r | |
135 | ExternalInterruptCount = 0;\r | |
136 | return EFI_SUCCESS;\r | |
137 | }\r | |
138 | \r | |
139 | EFI_STATUS\r | |
140 | EFIAPI\r | |
141 | plUnloadDebugSupportDriver (\r | |
142 | IN EFI_HANDLE ImageHandle\r | |
143 | )\r | |
144 | /*++\r | |
145 | \r | |
146 | Routine Description:\r | |
147 | Unload handler that is called during UnloadImage() - deallocates pool memory\r | |
148 | used by the driver. Must be public because it's referenced from DebugSuport.c\r | |
149 | \r | |
150 | Arguments:\r | |
151 | IN EFI_HANDLE ImageHandle\r | |
152 | \r | |
153 | Returns:\r | |
154 | \r | |
155 | EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.\r | |
156 | \r | |
157 | --*/\r | |
158 | // TODO: ImageHandle - add argument and description to function comment\r | |
159 | {\r | |
160 | EFI_EXCEPTION_TYPE ExceptionType;\r | |
161 | \r | |
162 | for (ExceptionType = 0; ExceptionType < NUM_IVT_ENTRIES; ExceptionType++) {\r | |
163 | ManageIvtEntryTable (ExceptionType, NULL, NULL);\r | |
164 | }\r | |
165 | \r | |
166 | return EFI_SUCCESS;\r | |
167 | }\r | |
168 | \r | |
169 | VOID\r | |
170 | CommonHandler (\r | |
171 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
172 | IN EFI_SYSTEM_CONTEXT Context\r | |
173 | )\r | |
174 | /*++\r | |
175 | \r | |
176 | Routine Description:\r | |
177 | C routine that is called for all registered exceptions. This is the main\r | |
178 | exception dispatcher. Must be public because it's referenced from AsmFuncs.s.\r | |
179 | \r | |
180 | Arguments:\r | |
181 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
182 | IN EFI_SYSTEM_CONTEXT Context\r | |
183 | \r | |
184 | Returns:\r | |
185 | \r | |
186 | Nothing\r | |
187 | \r | |
188 | --*/\r | |
189 | // TODO: ExceptionType - add argument and description to function comment\r | |
190 | // TODO: Context - add argument and description to function comment\r | |
191 | {\r | |
192 | static BOOLEAN InHandler = FALSE;\r | |
193 | \r | |
194 | DEBUG_CODE (\r | |
195 | if (InHandler) {\r | |
196 | EfiDebugPrint (EFI_D_GENERIC, "ERROR: Re-entered debugger!\n"\r | |
197 | " ExceptionType == %X\n"\r | |
198 | " Context == %X\n"\r | |
199 | " Context.SystemContextIpf->CrIip == %X\n"\r | |
200 | " Context.SystemContextIpf->CrIpsr == %X\n"\r | |
201 | " InHandler == %X\n",\r | |
202 | ExceptionType, \r | |
203 | Context, \r | |
204 | Context.SystemContextIpf->CrIip,\r | |
205 | Context.SystemContextIpf->CrIpsr,\r | |
206 | InHandler);\r | |
207 | }\r | |
208 | )\r | |
209 | ASSERT (!InHandler);\r | |
210 | InHandler = TRUE;\r | |
211 | if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {\r | |
212 | if (ExceptionType != EXCEPT_IPF_EXTERNAL_INTERRUPT) {\r | |
213 | IvtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, Context.SystemContextIpf);\r | |
214 | } else {\r | |
215 | IvtEntryTable[ExceptionType].RegisteredCallback (Context.SystemContextIpf);\r | |
216 | }\r | |
217 | } else {\r | |
218 | ASSERT (0);\r | |
219 | }\r | |
220 | \r | |
221 | InHandler = FALSE;\r | |
222 | }\r | |
223 | \r | |
224 | STATIC\r | |
225 | VOID\r | |
226 | GetHandlerEntryPoint (\r | |
227 | UINTN HandlerIndex,\r | |
228 | VOID **EntryPoint\r | |
229 | )\r | |
230 | /*++\r | |
231 | \r | |
232 | Routine Description:\r | |
233 | Given an integer number, return the physical address of the entry point in the IFT\r | |
234 | \r | |
235 | Arguments:\r | |
236 | UINTN HandlerIndex, \r | |
237 | VOID ** EntryPoint\r | |
238 | \r | |
239 | Returns:\r | |
240 | \r | |
241 | Nothing\r | |
242 | \r | |
243 | --*/\r | |
244 | // TODO: HandlerIndex - add argument and description to function comment\r | |
245 | // TODO: EntryPoint - add argument and description to function comment\r | |
246 | {\r | |
247 | UINT8 *TempPtr;\r | |
248 | \r | |
249 | //\r | |
250 | // get base address of IVT\r | |
251 | //\r | |
252 | TempPtr = GetIva ();\r | |
253 | \r | |
254 | if (HandlerIndex < 20) {\r | |
255 | //\r | |
256 | // first 20 provide 64 bundles per vector\r | |
257 | //\r | |
258 | TempPtr += 0x400 * HandlerIndex;\r | |
259 | } else {\r | |
260 | //\r | |
261 | // the rest provide 16 bundles per vector\r | |
262 | //\r | |
263 | TempPtr += 0x5000 + 0x100 * (HandlerIndex - 20);\r | |
264 | }\r | |
265 | \r | |
266 | *EntryPoint = (VOID *) TempPtr;\r | |
267 | }\r | |
268 | \r | |
269 | STATIC\r | |
270 | EFI_STATUS\r | |
271 | ManageIvtEntryTable (\r | |
272 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
273 | IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],\r | |
274 | IN VOID (*NewCallback) ()\r | |
275 | )\r | |
276 | /*++\r | |
277 | \r | |
278 | Routine Description:\r | |
279 | This is the worker function that installs and removes all handlers\r | |
280 | \r | |
281 | Arguments:\r | |
282 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
283 | IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],\r | |
284 | IN VOID (*NewCallback) ()\r | |
285 | \r | |
286 | Returns:\r | |
287 | \r | |
288 | EFI_STATUS - any return other than EFI_SUCCESS indicates the request was not\r | |
289 | satisfied.\r | |
290 | \r | |
291 | --*/\r | |
292 | // TODO: ExceptionType - add argument and description to function comment\r | |
293 | // TODO: ] - add argument and description to function comment\r | |
294 | // TODO: ) - add argument and description to function comment\r | |
295 | // TODO: EFI_ALREADY_STARTED - add return value to function comment\r | |
296 | {\r | |
297 | BUNDLE *B0Ptr;\r | |
298 | UINT64 InterruptFlags;\r | |
299 | EFI_TPL OldTpl;\r | |
300 | \r | |
301 | //\r | |
302 | // Get address of bundle 0\r | |
303 | //\r | |
304 | GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);\r | |
305 | \r | |
306 | if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {\r | |
307 | //\r | |
308 | // we've already installed to this vector\r | |
309 | //\r | |
310 | if (NewCallback != NULL) {\r | |
311 | //\r | |
312 | // if the input handler is non-null, error\r | |
313 | //\r | |
314 | return EFI_ALREADY_STARTED;\r | |
315 | } else {\r | |
316 | //\r | |
317 | // else remove the previously installed handler\r | |
318 | //\r | |
319 | OldTpl = gBS->RaiseTPL (EFI_TPL_HIGH_LEVEL);\r | |
320 | InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);\r | |
321 | if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {\r | |
322 | UnchainExternalInterrupt ();\r | |
323 | } else {\r | |
324 | UnhookEntry (ExceptionType);\r | |
325 | }\r | |
326 | \r | |
327 | ProgramInterruptFlags (InterruptFlags);\r | |
328 | gBS->RestoreTPL (OldTpl);\r | |
329 | //\r | |
330 | // re-init IvtEntryTable\r | |
331 | //\r | |
332 | gBS->SetMem (&IvtEntryTable[ExceptionType], sizeof (IVT_ENTRY), 0);\r | |
333 | }\r | |
334 | } else {\r | |
335 | //\r | |
336 | // no user handler installed on this vector\r | |
337 | //\r | |
338 | if (NewCallback != NULL) {\r | |
339 | OldTpl = gBS->RaiseTPL (EFI_TPL_HIGH_LEVEL);\r | |
340 | InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);\r | |
341 | if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {\r | |
342 | ChainExternalInterrupt (NewCallback);\r | |
343 | } else {\r | |
344 | HookEntry (ExceptionType, NewBundles, NewCallback);\r | |
345 | }\r | |
346 | \r | |
347 | ProgramInterruptFlags (InterruptFlags);\r | |
348 | gBS->RestoreTPL (OldTpl);\r | |
349 | }\r | |
350 | }\r | |
351 | \r | |
352 | return EFI_SUCCESS;\r | |
353 | }\r | |
354 | \r | |
355 | STATIC\r | |
356 | VOID\r | |
357 | HookEntry (\r | |
358 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
359 | IN BUNDLE NewBundles[4],\r | |
360 | IN VOID (*NewCallback) ()\r | |
361 | )\r | |
362 | /*++\r | |
363 | \r | |
364 | Routine Description:\r | |
365 | Saves original IVT contents and inserts a few new bundles which are fixed up\r | |
366 | to store the ExceptionType and then call the common handler.\r | |
367 | \r | |
368 | Arguments:\r | |
369 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
370 | IN BUNDLE NewBundles[4],\r | |
371 | IN VOID (*NewCallback) ()\r | |
372 | \r | |
373 | Returns:\r | |
374 | \r | |
375 | Nothing\r | |
376 | \r | |
377 | --*/\r | |
378 | // TODO: ExceptionType - add argument and description to function comment\r | |
379 | // TODO: ] - add argument and description to function comment\r | |
380 | // TODO: ) - add argument and description to function comment\r | |
381 | {\r | |
382 | BUNDLE *FixupBundle;\r | |
383 | BUNDLE *B0Ptr;\r | |
384 | \r | |
385 | //\r | |
386 | // Get address of bundle 0\r | |
387 | //\r | |
388 | GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);\r | |
389 | \r | |
390 | //\r | |
391 | // copy original bundles from IVT to IvtEntryTable so we can restore them later\r | |
392 | //\r | |
393 | gBS->CopyMem (\r | |
394 | IvtEntryTable[ExceptionType].OrigBundles,\r | |
395 | B0Ptr,\r | |
396 | sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB\r | |
397 | );\r | |
398 | //\r | |
399 | // insert new B0\r | |
400 | //\r | |
401 | gBS->CopyMem (B0Ptr, NewBundles, sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB);\r | |
402 | \r | |
403 | //\r | |
404 | // fixup IVT entry so it stores its index and whether or not to chain...\r | |
405 | //\r | |
406 | FixupBundle = B0Ptr + 2;\r | |
407 | FixupBundle->high |= ExceptionType << 36;\r | |
408 | \r | |
409 | InstructionCacheFlush (B0Ptr, 5);\r | |
410 | IvtEntryTable[ExceptionType].RegisteredCallback = NewCallback;\r | |
411 | }\r | |
412 | \r | |
413 | STATIC\r | |
414 | VOID\r | |
415 | UnhookEntry (\r | |
416 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
417 | )\r | |
418 | /*++\r | |
419 | \r | |
420 | Routine Description:\r | |
421 | Restores original IVT contents when unregistering a callback function\r | |
422 | \r | |
423 | Arguments:\r | |
424 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
425 | \r | |
426 | Returns:\r | |
427 | \r | |
428 | Nothing\r | |
429 | \r | |
430 | --*/\r | |
431 | // TODO: ExceptionType - add argument and description to function comment\r | |
432 | {\r | |
433 | BUNDLE *B0Ptr;\r | |
434 | \r | |
435 | //\r | |
436 | // Get address of bundle 0\r | |
437 | //\r | |
438 | GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);\r | |
439 | //\r | |
440 | // restore original bundles in IVT\r | |
441 | //\r | |
442 | gBS->CopyMem (\r | |
443 | B0Ptr,\r | |
444 | IvtEntryTable[ExceptionType].OrigBundles,\r | |
445 | sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB\r | |
446 | );\r | |
447 | InstructionCacheFlush (B0Ptr, 5);\r | |
448 | }\r | |
449 | \r | |
450 | STATIC\r | |
451 | VOID\r | |
452 | ChainExternalInterrupt (\r | |
453 | IN VOID (*NewCallback) ()\r | |
454 | )\r | |
455 | /*++\r | |
456 | \r | |
457 | Routine Description:\r | |
458 | Sets up cache flush and calls assembly function to chain external interrupt.\r | |
459 | Records new callback in IvtEntryTable.\r | |
460 | \r | |
461 | Arguments:\r | |
462 | IN VOID (*NewCallback) ()\r | |
463 | \r | |
464 | Returns:\r | |
465 | \r | |
466 | Nothing\r | |
467 | \r | |
468 | --*/\r | |
469 | // TODO: ) - add argument and description to function comment\r | |
470 | {\r | |
471 | VOID *Start;\r | |
472 | \r | |
473 | Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);\r | |
474 | IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NewCallback;\r | |
475 | ChainHandler ();\r | |
476 | InstructionCacheFlush (Start, 0x400);\r | |
477 | }\r | |
478 | \r | |
479 | STATIC\r | |
480 | VOID\r | |
481 | UnchainExternalInterrupt (\r | |
482 | VOID\r | |
483 | )\r | |
484 | /*++\r | |
485 | \r | |
486 | Routine Description:\r | |
487 | Sets up cache flush and calls assembly function to restore external interrupt.\r | |
488 | Removes registered callback from IvtEntryTable.\r | |
489 | \r | |
490 | Arguments:\r | |
491 | Nothing\r | |
492 | \r | |
493 | Returns:\r | |
494 | \r | |
495 | Nothing\r | |
496 | \r | |
497 | --*/\r | |
498 | {\r | |
499 | VOID *Start;\r | |
500 | \r | |
501 | Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);\r | |
502 | UnchainHandler ();\r | |
503 | InstructionCacheFlush (Start, 0x400);\r | |
504 | IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NULL;\r | |
505 | }\r | |
506 | \r | |
507 | //\r | |
508 | // The rest of the functions in this file are all member functions for the\r | |
509 | // DebugSupport protocol\r | |
510 | //\r | |
511 | \r | |
512 | EFI_STATUS\r | |
513 | EFIAPI\r | |
514 | GetMaximumProcessorIndex (\r | |
515 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
516 | OUT UINTN *MaxProcessorIndex\r | |
517 | )\r | |
518 | /*++\r | |
519 | \r | |
520 | Routine Description: This is a DebugSupport protocol member function. Hard\r | |
521 | coded to support only 1 processor for now.\r | |
522 | \r | |
523 | Arguments:\r | |
524 | \r | |
525 | Returns: Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0\r | |
526 | \r | |
527 | --*/\r | |
528 | // TODO: This - add argument and description to function comment\r | |
529 | // TODO: MaxProcessorIndex - add argument and description to function comment\r | |
530 | {\r | |
531 | *MaxProcessorIndex = 0;\r | |
532 | return (EFI_SUCCESS);\r | |
533 | }\r | |
534 | \r | |
535 | EFI_STATUS\r | |
536 | EFIAPI\r | |
537 | RegisterPeriodicCallback (\r | |
538 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
539 | IN UINTN ProcessorIndex,\r | |
540 | IN EFI_PERIODIC_CALLBACK NewPeriodicCallback\r | |
541 | )\r | |
542 | /*++\r | |
543 | \r | |
544 | Routine Description:\r | |
545 | DebugSupport protocol member function\r | |
546 | \r | |
547 | Arguments:\r | |
548 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
549 | IN UINTN ProcessorIndex,\r | |
550 | IN EFI_PERIODIC_CALLBACK NewPeriodicCallback\r | |
551 | \r | |
552 | Returns:\r | |
553 | \r | |
554 | EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.\r | |
555 | \r | |
556 | --*/\r | |
557 | // TODO: This - add argument and description to function comment\r | |
558 | // TODO: ProcessorIndex - add argument and description to function comment\r | |
559 | // TODO: NewPeriodicCallback - add argument and description to function comment\r | |
560 | {\r | |
561 | return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, NewPeriodicCallback);\r | |
562 | }\r | |
563 | \r | |
564 | EFI_STATUS\r | |
565 | EFIAPI\r | |
566 | RegisterExceptionCallback (\r | |
567 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
568 | IN UINTN ProcessorIndex,\r | |
569 | IN EFI_EXCEPTION_CALLBACK NewCallback,\r | |
570 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
571 | )\r | |
572 | /*++\r | |
573 | \r | |
574 | Routine Description:\r | |
575 | DebugSupport protocol member function\r | |
576 | \r | |
577 | Arguments:\r | |
578 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
579 | IN EFI_EXCEPTION_CALLBACK NewCallback,\r | |
580 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
581 | \r | |
582 | Returns:\r | |
583 | \r | |
584 | EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.\r | |
585 | \r | |
586 | --*/\r | |
587 | // TODO: This - add argument and description to function comment\r | |
588 | // TODO: ProcessorIndex - add argument and description to function comment\r | |
589 | // TODO: NewCallback - add argument and description to function comment\r | |
590 | // TODO: ExceptionType - add argument and description to function comment\r | |
591 | {\r | |
592 | return ManageIvtEntryTable (\r | |
593 | ExceptionType,\r | |
594 | (BUNDLE *) ((EFI_PLABEL *) HookStub)->EntryPoint,\r | |
595 | NewCallback\r | |
596 | );\r | |
597 | }\r | |
598 | \r | |
599 | EFI_STATUS\r | |
600 | EFIAPI\r | |
601 | InvalidateInstructionCache (\r | |
602 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
603 | IN UINTN ProcessorIndex,\r | |
604 | IN VOID *Start,\r | |
605 | IN UINTN Length\r | |
606 | )\r | |
607 | /*++\r | |
608 | \r | |
609 | Routine Description:\r | |
610 | DebugSupport protocol member function. Calls assembly routine to flush cache.\r | |
611 | \r | |
612 | Arguments:\r | |
613 | \r | |
614 | Returns:\r | |
615 | EFI_SUCCESS\r | |
616 | \r | |
617 | --*/\r | |
618 | // TODO: This - add argument and description to function comment\r | |
619 | // TODO: ProcessorIndex - add argument and description to function comment\r | |
620 | // TODO: Start - add argument and description to function comment\r | |
621 | // TODO: Length - add argument and description to function comment\r | |
622 | {\r | |
623 | InstructionCacheFlush (Start, Length);\r | |
624 | return (EFI_SUCCESS);\r | |
625 | }\r |