]>
Commit | Line | Data |
---|---|---|
9e604fe4 | 1 | /** @file\r |
c1f23d63 | 2 | IPF specific debug support functions\r |
3 | \r | |
19b15d63 | 4 | Copyright (c) 2006 - 2008, Intel Corporation \r |
c1f23d63 | 5 | All rights reserved. This program and the accompanying materials \r |
6 | are licensed and made available under the terms and conditions of the BSD License \r | |
7 | which accompanies this distribution. The full text of the license may be found at \r | |
8 | http://opensource.org/licenses/bsd-license.php \r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | //\r | |
16 | // private header files\r | |
17 | //\r | |
e9f9d09a | 18 | #include "PlDebugSupport.h"\r |
c1f23d63 | 19 | \r |
19b15d63 | 20 | BOOLEAN mInHandler = FALSE;\r |
21 | \r | |
c1f23d63 | 22 | typedef struct {\r |
23 | UINT64 low;\r | |
24 | UINT64 high;\r | |
25 | } BUNDLE;\r | |
26 | \r | |
27 | //\r | |
28 | // number of bundles to swap in ivt\r | |
29 | //\r | |
30 | #define NUM_BUNDLES_IN_STUB 5\r | |
31 | #define NUM_IVT_ENTRIES 64\r | |
32 | \r | |
33 | typedef struct {\r | |
34 | BUNDLE OrigBundles[NUM_BUNDLES_IN_STUB];\r | |
35 | VOID (*RegisteredCallback) ();\r | |
36 | } IVT_ENTRY;\r | |
37 | \r | |
aa79b0b3 | 38 | IVT_ENTRY IvtEntryTable[NUM_IVT_ENTRIES];\r |
39 | \r | |
40 | //\r | |
41 | // IPF context record is overallocated by 512 bytes to guarantee a 512 byte alignment exists\r | |
42 | // within the buffer and still have a large enough buffer to hold a whole IPF context record.\r | |
43 | //\r | |
44 | UINT8 IpfContextBuf[sizeof (EFI_SYSTEM_CONTEXT_IPF) + 512];\r | |
45 | \r | |
46 | //\r | |
47 | // The PatchSaveBuffer is used to store the original bundles from the IVT where it is patched\r | |
48 | // with the common handler.\r | |
49 | //\r | |
50 | UINT8 PatchSaveBuffer[0x400];\r | |
51 | UINTN ExternalInterruptCount;\r | |
52 | \r | |
9e604fe4 | 53 | /**\r |
54 | This is the worker function that uninstalls and removes all handlers.\r | |
55 | \r | |
56 | @param ExceptionType Exception Type\r | |
57 | @param NewBundles New Boundles\r | |
58 | @param NewCallback New Callback\r | |
59 | \r | |
60 | @retval EFI_ALEADY_STARTED Ivt already hooked.\r | |
61 | @retval others Indicates the request was not satisfied.\r | |
62 | @retval EFI_SUCCESS Successfully uninstalled.\r | |
63 | \r | |
64 | **/\r | |
c1f23d63 | 65 | EFI_STATUS\r |
66 | ManageIvtEntryTable (\r | |
9e604fe4 | 67 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
c1f23d63 | 68 | IN BUNDLE NewBundles[4],\r |
69 | IN VOID (*NewCallback) ()\r | |
70 | );\r | |
71 | \r | |
9e604fe4 | 72 | /**\r |
73 | Saves original IVT contents and inserts a few new bundles which are fixed up\r | |
74 | to store the ExceptionType and then call the common handler.\r | |
75 | \r | |
76 | @param ExceptionType Exception Type\r | |
77 | @param NewBundles New Boundles\r | |
78 | @param NewCallback New Callback\r | |
79 | \r | |
80 | **/\r | |
c1f23d63 | 81 | VOID\r |
82 | HookEntry (\r | |
9e604fe4 | 83 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
c1f23d63 | 84 | IN BUNDLE NewBundles[4],\r |
85 | IN VOID (*NewCallback) ()\r | |
86 | );\r | |
87 | \r | |
9e604fe4 | 88 | /**\r |
89 | Restores original IVT contents when unregistering a callback function.\r | |
90 | \r | |
91 | @param ExceptionType Exception Type\r | |
92 | \r | |
93 | **/\r | |
c1f23d63 | 94 | VOID\r |
95 | UnhookEntry (\r | |
96 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
97 | );\r | |
98 | \r | |
9e604fe4 | 99 | /**\r |
100 | Sets up cache flush and calls assembly function to chain external interrupt.\r | |
101 | \r | |
102 | Records new callback in IvtEntryTable.\r | |
103 | \r | |
104 | @param NewCallback New Callback.\r | |
105 | \r | |
106 | **/\r | |
c1f23d63 | 107 | VOID\r |
108 | ChainExternalInterrupt (\r | |
109 | IN VOID (*NewCallback) ()\r | |
110 | );\r | |
111 | \r | |
9e604fe4 | 112 | /**\r |
113 | Sets up cache flush and calls assembly function to restore external interrupt.\r | |
114 | Removes registered callback from IvtEntryTable.\r | |
115 | \r | |
116 | **/\r | |
c1f23d63 | 117 | VOID\r |
118 | UnchainExternalInterrupt (\r | |
119 | VOID\r | |
120 | );\r | |
121 | \r | |
9e604fe4 | 122 | /**\r |
123 | Given an integer number, return the physical address of the entry point in the IFT.\r | |
124 | \r | |
125 | @param HandlerIndex Index of the Handler \r | |
126 | @param EntryPoint IFT Entrypoint\r | |
127 | \r | |
128 | **/\r | |
c1f23d63 | 129 | VOID\r |
130 | GetHandlerEntryPoint (\r | |
131 | UINTN HandlerIndex,\r | |
132 | VOID **EntryPoint\r | |
133 | );\r | |
134 | \r | |
c1f23d63 | 135 | \r |
9e604fe4 | 136 | /**\r |
137 | IPF specific DebugSupport driver initialization. \r | |
c1f23d63 | 138 | \r |
9e604fe4 | 139 | Must be public because it's referenced from DebugSupport.c\r |
c1f23d63 | 140 | \r |
9e604fe4 | 141 | @retval EFI_SUCCESS Always.\r |
c1f23d63 | 142 | \r |
9e604fe4 | 143 | **/\r |
144 | EFI_STATUS\r | |
145 | PlInitializeDebugSupportDriver (\r | |
146 | VOID\r | |
147 | )\r | |
c1f23d63 | 148 | {\r |
519f076a | 149 | ZeroMem (IvtEntryTable, sizeof (IvtEntryTable));\r |
c1f23d63 | 150 | ExternalInterruptCount = 0;\r |
151 | return EFI_SUCCESS;\r | |
152 | }\r | |
153 | \r | |
9e604fe4 | 154 | /**\r |
c1f23d63 | 155 | Unload handler that is called during UnloadImage() - deallocates pool memory\r |
156 | used by the driver. Must be public because it's referenced from DebugSuport.c\r | |
157 | \r | |
9e604fe4 | 158 | @param ImageHandle The firmware allocated handle for the EFI image.\r |
c1f23d63 | 159 | \r |
9e604fe4 | 160 | @retval EFI_SUCCESS Always.\r |
c1f23d63 | 161 | \r |
9e604fe4 | 162 | **/\r |
163 | EFI_STATUS\r | |
164 | EFIAPI\r | |
165 | PlUnloadDebugSupportDriver (\r | |
166 | IN EFI_HANDLE ImageHandle\r | |
167 | )\r | |
c1f23d63 | 168 | {\r |
169 | EFI_EXCEPTION_TYPE ExceptionType;\r | |
170 | \r | |
171 | for (ExceptionType = 0; ExceptionType < NUM_IVT_ENTRIES; ExceptionType++) {\r | |
172 | ManageIvtEntryTable (ExceptionType, NULL, NULL);\r | |
173 | }\r | |
174 | \r | |
175 | return EFI_SUCCESS;\r | |
176 | }\r | |
177 | \r | |
9e604fe4 | 178 | /**\r |
179 | C routine that is called for all registered exceptions. This is the main\r | |
180 | exception dispatcher. Must be public because it's referenced from AsmFuncs.s.\r | |
181 | \r | |
182 | @param ExceptionType Exception Type\r | |
183 | @param Context System Context\r | |
184 | **/\r | |
c1f23d63 | 185 | VOID\r |
186 | CommonHandler (\r | |
187 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
188 | IN EFI_SYSTEM_CONTEXT Context\r | |
189 | )\r | |
c1f23d63 | 190 | {\r |
c1f23d63 | 191 | DEBUG_CODE_BEGIN ();\r |
19b15d63 | 192 | if (mInHandler) {\r |
c1f23d63 | 193 | DEBUG ((EFI_D_INFO, "ERROR: Re-entered debugger!\n"\r |
194 | " ExceptionType == %X\n"\r | |
195 | " Context == %X\n"\r | |
196 | " Context.SystemContextIpf->CrIip == %X\n"\r | |
197 | " Context.SystemContextIpf->CrIpsr == %X\n"\r | |
19b15d63 | 198 | " mInHandler == %X\n",\r |
c1f23d63 | 199 | ExceptionType, \r |
200 | Context, \r | |
201 | Context.SystemContextIpf->CrIip,\r | |
202 | Context.SystemContextIpf->CrIpsr,\r | |
19b15d63 | 203 | mInHandler));\r |
c1f23d63 | 204 | }\r |
205 | DEBUG_CODE_END ();\r | |
206 | \r | |
19b15d63 | 207 | ASSERT (!mInHandler);\r |
208 | mInHandler = TRUE;\r | |
c1f23d63 | 209 | if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {\r |
210 | if (ExceptionType != EXCEPT_IPF_EXTERNAL_INTERRUPT) {\r | |
211 | IvtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, Context.SystemContextIpf);\r | |
212 | } else {\r | |
213 | IvtEntryTable[ExceptionType].RegisteredCallback (Context.SystemContextIpf);\r | |
214 | }\r | |
215 | } else {\r | |
216 | ASSERT (0);\r | |
217 | }\r | |
218 | \r | |
19b15d63 | 219 | mInHandler = FALSE;\r |
c1f23d63 | 220 | }\r |
221 | \r | |
9e604fe4 | 222 | /**\r |
223 | Given an integer number, return the physical address of the entry point in the IFT.\r | |
224 | \r | |
225 | @param HandlerIndex Index of the Handler \r | |
226 | @param EntryPoint IFT Entrypoint\r | |
227 | \r | |
228 | **/\r | |
c1f23d63 | 229 | VOID\r |
230 | GetHandlerEntryPoint (\r | |
231 | UINTN HandlerIndex,\r | |
232 | VOID **EntryPoint\r | |
233 | )\r | |
c1f23d63 | 234 | {\r |
235 | UINT8 *TempPtr;\r | |
236 | \r | |
237 | //\r | |
238 | // get base address of IVT\r | |
239 | //\r | |
240 | TempPtr = GetIva ();\r | |
241 | \r | |
242 | if (HandlerIndex < 20) {\r | |
243 | //\r | |
244 | // first 20 provide 64 bundles per vector\r | |
245 | //\r | |
246 | TempPtr += 0x400 * HandlerIndex;\r | |
247 | } else {\r | |
248 | //\r | |
249 | // the rest provide 16 bundles per vector\r | |
250 | //\r | |
251 | TempPtr += 0x5000 + 0x100 * (HandlerIndex - 20);\r | |
252 | }\r | |
253 | \r | |
254 | *EntryPoint = (VOID *) TempPtr;\r | |
255 | }\r | |
256 | \r | |
9e604fe4 | 257 | /**\r |
258 | This is the worker function that uninstalls and removes all handlers.\r | |
259 | \r | |
260 | @param ExceptionType Exception Type\r | |
261 | @param NewBundles New Boundles\r | |
262 | @param NewCallback New Callback\r | |
263 | \r | |
264 | @retval EFI_ALEADY_STARTED Ivt already hooked.\r | |
265 | @retval others Indicates the request was not satisfied.\r | |
266 | @retval EFI_SUCCESS Successfully uninstalled.\r | |
267 | \r | |
268 | **/\r | |
c1f23d63 | 269 | EFI_STATUS\r |
270 | ManageIvtEntryTable (\r | |
9e604fe4 | 271 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
c1f23d63 | 272 | IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],\r |
273 | IN VOID (*NewCallback) ()\r | |
274 | )\r | |
c1f23d63 | 275 | {\r |
276 | BUNDLE *B0Ptr;\r | |
277 | UINT64 InterruptFlags;\r | |
278 | EFI_TPL OldTpl;\r | |
279 | \r | |
280 | //\r | |
281 | // Get address of bundle 0\r | |
282 | //\r | |
283 | GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);\r | |
284 | \r | |
285 | if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {\r | |
286 | //\r | |
287 | // we've already installed to this vector\r | |
288 | //\r | |
289 | if (NewCallback != NULL) {\r | |
290 | //\r | |
291 | // if the input handler is non-null, error\r | |
292 | //\r | |
293 | return EFI_ALREADY_STARTED;\r | |
294 | } else {\r | |
295 | //\r | |
296 | // else remove the previously installed handler\r | |
297 | //\r | |
298 | OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r | |
299 | InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);\r | |
300 | if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {\r | |
301 | UnchainExternalInterrupt ();\r | |
302 | } else {\r | |
303 | UnhookEntry (ExceptionType);\r | |
304 | }\r | |
305 | \r | |
306 | ProgramInterruptFlags (InterruptFlags);\r | |
307 | gBS->RestoreTPL (OldTpl);\r | |
308 | //\r | |
309 | // re-init IvtEntryTable\r | |
310 | //\r | |
519f076a | 311 | ZeroMem (&IvtEntryTable[ExceptionType], sizeof (IVT_ENTRY));\r |
c1f23d63 | 312 | }\r |
313 | } else {\r | |
314 | //\r | |
315 | // no user handler installed on this vector\r | |
316 | //\r | |
317 | if (NewCallback != NULL) {\r | |
318 | OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r | |
319 | InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);\r | |
320 | if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {\r | |
321 | ChainExternalInterrupt (NewCallback);\r | |
322 | } else {\r | |
323 | HookEntry (ExceptionType, NewBundles, NewCallback);\r | |
324 | }\r | |
325 | \r | |
326 | ProgramInterruptFlags (InterruptFlags);\r | |
327 | gBS->RestoreTPL (OldTpl);\r | |
328 | }\r | |
329 | }\r | |
330 | \r | |
331 | return EFI_SUCCESS;\r | |
332 | }\r | |
333 | \r | |
9e604fe4 | 334 | /**\r |
335 | Saves original IVT contents and inserts a few new bundles which are fixed up\r | |
336 | to store the ExceptionType and then call the common handler.\r | |
337 | \r | |
338 | @param ExceptionType Exception Type\r | |
339 | @param NewBundles New Boundles\r | |
340 | @param NewCallback New Callback\r | |
341 | \r | |
342 | **/\r | |
c1f23d63 | 343 | VOID\r |
344 | HookEntry (\r | |
345 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
346 | IN BUNDLE NewBundles[4],\r | |
347 | IN VOID (*NewCallback) ()\r | |
348 | )\r | |
c1f23d63 | 349 | {\r |
350 | BUNDLE *FixupBundle;\r | |
351 | BUNDLE *B0Ptr;\r | |
352 | \r | |
353 | //\r | |
354 | // Get address of bundle 0\r | |
355 | //\r | |
356 | GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);\r | |
357 | \r | |
358 | //\r | |
359 | // copy original bundles from IVT to IvtEntryTable so we can restore them later\r | |
360 | //\r | |
361 | CopyMem (\r | |
362 | IvtEntryTable[ExceptionType].OrigBundles,\r | |
363 | B0Ptr,\r | |
364 | sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB\r | |
365 | );\r | |
366 | //\r | |
367 | // insert new B0\r | |
368 | //\r | |
369 | CopyMem (B0Ptr, NewBundles, sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB);\r | |
370 | \r | |
371 | //\r | |
372 | // fixup IVT entry so it stores its index and whether or not to chain...\r | |
373 | //\r | |
374 | FixupBundle = B0Ptr + 2;\r | |
375 | FixupBundle->high |= ExceptionType << 36;\r | |
376 | \r | |
377 | InstructionCacheFlush (B0Ptr, 5);\r | |
378 | IvtEntryTable[ExceptionType].RegisteredCallback = NewCallback;\r | |
379 | }\r | |
380 | \r | |
9e604fe4 | 381 | /**\r |
382 | Restores original IVT contents when unregistering a callback function.\r | |
383 | \r | |
384 | @param ExceptionType Exception Type\r | |
385 | \r | |
386 | **/\r | |
c1f23d63 | 387 | VOID\r |
388 | UnhookEntry (\r | |
389 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
390 | )\r | |
c1f23d63 | 391 | {\r |
392 | BUNDLE *B0Ptr;\r | |
393 | \r | |
394 | //\r | |
395 | // Get address of bundle 0\r | |
396 | //\r | |
397 | GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);\r | |
398 | //\r | |
399 | // restore original bundles in IVT\r | |
400 | //\r | |
401 | CopyMem (\r | |
402 | B0Ptr,\r | |
403 | IvtEntryTable[ExceptionType].OrigBundles,\r | |
404 | sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB\r | |
405 | );\r | |
406 | InstructionCacheFlush (B0Ptr, 5);\r | |
407 | }\r | |
408 | \r | |
9e604fe4 | 409 | /**\r |
c1f23d63 | 410 | Sets up cache flush and calls assembly function to chain external interrupt.\r |
9e604fe4 | 411 | \r |
c1f23d63 | 412 | Records new callback in IvtEntryTable.\r |
c1f23d63 | 413 | \r |
9e604fe4 | 414 | @param NewCallback New Callback\r |
c1f23d63 | 415 | \r |
9e604fe4 | 416 | **/\r |
417 | VOID\r | |
418 | ChainExternalInterrupt (\r | |
419 | IN VOID (*NewCallback) ()\r | |
420 | )\r | |
c1f23d63 | 421 | {\r |
422 | VOID *Start;\r | |
423 | \r | |
424 | Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);\r | |
425 | IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NewCallback;\r | |
426 | ChainHandler ();\r | |
427 | InstructionCacheFlush (Start, 0x400);\r | |
428 | }\r | |
429 | \r | |
9e604fe4 | 430 | /**\r |
431 | Sets up cache flush and calls assembly function to restore external interrupt.\r | |
432 | Removes registered callback from IvtEntryTable.\r | |
433 | \r | |
434 | **/\r | |
c1f23d63 | 435 | VOID\r |
436 | UnchainExternalInterrupt (\r | |
437 | VOID\r | |
438 | )\r | |
c1f23d63 | 439 | {\r |
440 | VOID *Start;\r | |
441 | \r | |
442 | Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);\r | |
443 | UnchainHandler ();\r | |
444 | InstructionCacheFlush (Start, 0x400);\r | |
445 | IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NULL;\r | |
446 | }\r | |
447 | \r | |
448 | //\r | |
449 | // The rest of the functions in this file are all member functions for the\r | |
450 | // DebugSupport protocol\r | |
451 | //\r | |
452 | \r | |
9e604fe4 | 453 | /**\r |
454 | This is a DebugSupport protocol member function, hard\r | |
455 | coded to support only 1 processor for now.\r | |
456 | \r | |
457 | @param This The DebugSupport instance\r | |
458 | @param MaxProcessorIndex The maximuim supported processor index\r | |
459 | \r | |
460 | @retval EFI_SUCCESS Always returned with **MaxProcessorIndex set to 0.\r | |
461 | \r | |
462 | **/\r | |
c1f23d63 | 463 | EFI_STATUS\r |
464 | EFIAPI\r | |
465 | GetMaximumProcessorIndex (\r | |
466 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
467 | OUT UINTN *MaxProcessorIndex\r | |
468 | )\r | |
c1f23d63 | 469 | {\r |
470 | *MaxProcessorIndex = 0;\r | |
471 | return (EFI_SUCCESS);\r | |
472 | }\r | |
473 | \r | |
9e604fe4 | 474 | /**\r |
475 | DebugSupport protocol member function.\r | |
476 | \r | |
477 | @param This The DebugSupport instance\r | |
478 | @param ProcessorIndex Which processor the callback applies to.\r | |
479 | @param PeriodicCallback Callback function\r | |
480 | \r | |
481 | @retval EFI_SUCCESS Indicates the callback was registered.\r | |
482 | @retval others Callback was not registered.\r | |
483 | \r | |
484 | **/\r | |
c1f23d63 | 485 | EFI_STATUS\r |
486 | EFIAPI\r | |
487 | RegisterPeriodicCallback (\r | |
488 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
489 | IN UINTN ProcessorIndex,\r | |
9e604fe4 | 490 | IN EFI_PERIODIC_CALLBACK PeriodicCallback\r |
c1f23d63 | 491 | )\r |
9e604fe4 | 492 | {\r |
493 | return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, PeriodicCallback);\r | |
494 | }\r | |
c1f23d63 | 495 | \r |
9e604fe4 | 496 | /**\r |
497 | DebugSupport protocol member function.\r | |
c1f23d63 | 498 | \r |
9e604fe4 | 499 | @param This The DebugSupport instance\r |
500 | @param ProcessorIndex Which processor the callback applies to.\r | |
501 | @param NewCallback Callback function\r | |
502 | @param ExceptionType Which exception to hook\r | |
c1f23d63 | 503 | \r |
9e604fe4 | 504 | @retval EFI_SUCCESS Indicates the callback was registered.\r |
505 | @retval others Callback was not registered.\r | |
c1f23d63 | 506 | \r |
9e604fe4 | 507 | **/\r |
c1f23d63 | 508 | EFI_STATUS\r |
509 | EFIAPI\r | |
510 | RegisterExceptionCallback (\r | |
511 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
512 | IN UINTN ProcessorIndex,\r | |
513 | IN EFI_EXCEPTION_CALLBACK NewCallback,\r | |
514 | IN EFI_EXCEPTION_TYPE ExceptionType\r | |
515 | )\r | |
c1f23d63 | 516 | {\r |
517 | return ManageIvtEntryTable (\r | |
518 | ExceptionType,\r | |
519 | (BUNDLE *) ((EFI_PLABEL *) HookStub)->EntryPoint,\r | |
520 | NewCallback\r | |
521 | );\r | |
522 | }\r | |
523 | \r | |
9e604fe4 | 524 | /**\r |
525 | DebugSupport protocol member function. Calls assembly routine to flush cache.\r | |
526 | \r | |
527 | @param This The DebugSupport instance\r | |
528 | @param ProcessorIndex Which processor the callback applies to.\r | |
529 | @param Start Physical base of the memory range to be invalidated\r | |
530 | @param Length mininum number of bytes in instruction cache to invalidate\r | |
531 | \r | |
532 | @retval EFI_SUCCESS Always returned.\r | |
533 | \r | |
534 | **/\r | |
c1f23d63 | 535 | EFI_STATUS\r |
536 | EFIAPI\r | |
537 | InvalidateInstructionCache (\r | |
538 | IN EFI_DEBUG_SUPPORT_PROTOCOL *This,\r | |
539 | IN UINTN ProcessorIndex,\r | |
540 | IN VOID *Start,\r | |
541 | IN UINTN Length\r | |
542 | )\r | |
c1f23d63 | 543 | {\r |
544 | InstructionCacheFlush (Start, Length);\r | |
9e604fe4 | 545 | return EFI_SUCCESS;\r |
c1f23d63 | 546 | }\r |