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