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c69dd9df | 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 | Cpu.c\r | |
14 | \r | |
15 | Abstract:\r | |
16 | \r | |
17 | --*/\r | |
18 | \r | |
19 | #include "CpuDxe.h"\r | |
20 | \r | |
21 | //\r | |
22 | // Global Variables\r | |
23 | //\r | |
24 | \r | |
25 | BOOLEAN mInterruptState = FALSE;\r | |
26 | extern UINT32 mExceptionCodeSize;\r | |
27 | UINTN mTimerVector = 0;\r | |
28 | volatile EFI_CPU_INTERRUPT_HANDLER mTimerHandler = NULL;\r | |
29 | EFI_LEGACY_8259_PROTOCOL *gLegacy8259 = NULL;\r | |
23833b2c | 30 | THUNK_CONTEXT mThunkContext;\r |
31 | #define EFI_CPU_EFLAGS_IF 0x200\r | |
c69dd9df | 32 | \r |
23833b2c | 33 | VOID\r |
34 | InitializeBiosIntCaller (\r | |
35 | VOID\r | |
36 | );\r | |
37 | \r | |
38 | BOOLEAN\r | |
39 | EFIAPI\r | |
40 | LegacyBiosInt86 (\r | |
41 | IN UINT8 BiosInt,\r | |
42 | IN EFI_IA32_REGISTER_SET *Regs\r | |
43 | );\r | |
44 | \r | |
c69dd9df | 45 | //\r |
46 | // The Cpu Architectural Protocol that this Driver produces\r | |
47 | //\r | |
48 | EFI_HANDLE mHandle = NULL;\r | |
49 | EFI_CPU_ARCH_PROTOCOL mCpu = {\r | |
50 | CpuFlushCpuDataCache,\r | |
51 | CpuEnableInterrupt,\r | |
52 | CpuDisableInterrupt,\r | |
53 | CpuGetInterruptState,\r | |
54 | CpuInit,\r | |
55 | CpuRegisterInterruptHandler,\r | |
56 | CpuGetTimerValue,\r | |
57 | CpuSetMemoryAttributes,\r | |
58 | 1, // NumberOfTimers\r | |
59 | 4, // DmaBufferAlignment\r | |
60 | };\r | |
61 | \r | |
62 | EFI_STATUS\r | |
63 | EFIAPI\r | |
64 | CpuFlushCpuDataCache (\r | |
65 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
66 | IN EFI_PHYSICAL_ADDRESS Start,\r | |
67 | IN UINT64 Length,\r | |
68 | IN EFI_CPU_FLUSH_TYPE FlushType\r | |
69 | )\r | |
70 | /*++\r | |
71 | \r | |
72 | Routine Description:\r | |
73 | Flush CPU data cache. If the instruction cache is fully coherent\r | |
74 | with all DMA operations then function can just return EFI_SUCCESS.\r | |
75 | \r | |
76 | Arguments:\r | |
77 | This - Protocol instance structure\r | |
78 | Start - Physical address to start flushing from.\r | |
79 | Length - Number of bytes to flush. Round up to chipset \r | |
80 | granularity.\r | |
81 | FlushType - Specifies the type of flush operation to perform.\r | |
82 | \r | |
83 | Returns: \r | |
84 | \r | |
85 | EFI_SUCCESS - If cache was flushed\r | |
86 | EFI_UNSUPPORTED - If flush type is not supported.\r | |
87 | EFI_DEVICE_ERROR - If requested range could not be flushed.\r | |
88 | \r | |
89 | --*/\r | |
90 | {\r | |
91 | if (FlushType == EfiCpuFlushTypeWriteBackInvalidate) {\r | |
92 | AsmWbinvd ();\r | |
93 | return EFI_SUCCESS;\r | |
94 | } else if (FlushType == EfiCpuFlushTypeInvalidate) {\r | |
95 | AsmInvd ();\r | |
96 | return EFI_SUCCESS;\r | |
97 | } else {\r | |
98 | return EFI_UNSUPPORTED;\r | |
99 | }\r | |
100 | }\r | |
101 | \r | |
102 | \r | |
103 | EFI_STATUS\r | |
104 | EFIAPI\r | |
105 | CpuEnableInterrupt (\r | |
106 | IN EFI_CPU_ARCH_PROTOCOL *This\r | |
107 | )\r | |
108 | /*++\r | |
109 | \r | |
110 | Routine Description:\r | |
111 | Enables CPU interrupts.\r | |
112 | \r | |
113 | Arguments:\r | |
114 | This - Protocol instance structure\r | |
115 | \r | |
116 | Returns: \r | |
117 | EFI_SUCCESS - If interrupts were enabled in the CPU\r | |
118 | EFI_DEVICE_ERROR - If interrupts could not be enabled on the CPU.\r | |
119 | \r | |
120 | --*/\r | |
121 | {\r | |
122 | EnableInterrupts (); \r | |
123 | \r | |
124 | mInterruptState = TRUE;\r | |
125 | return EFI_SUCCESS;\r | |
126 | }\r | |
127 | \r | |
128 | \r | |
129 | EFI_STATUS\r | |
130 | EFIAPI\r | |
131 | CpuDisableInterrupt (\r | |
132 | IN EFI_CPU_ARCH_PROTOCOL *This\r | |
133 | )\r | |
134 | /*++\r | |
135 | \r | |
136 | Routine Description:\r | |
137 | Disables CPU interrupts.\r | |
138 | \r | |
139 | Arguments:\r | |
140 | This - Protocol instance structure\r | |
141 | \r | |
142 | Returns: \r | |
143 | EFI_SUCCESS - If interrupts were disabled in the CPU.\r | |
144 | EFI_DEVICE_ERROR - If interrupts could not be disabled on the CPU.\r | |
145 | \r | |
146 | --*/\r | |
147 | {\r | |
148 | DisableInterrupts ();\r | |
149 | \r | |
150 | mInterruptState = FALSE;\r | |
151 | return EFI_SUCCESS;\r | |
152 | }\r | |
153 | \r | |
154 | \r | |
155 | EFI_STATUS\r | |
156 | EFIAPI\r | |
157 | CpuGetInterruptState (\r | |
158 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
159 | OUT BOOLEAN *State\r | |
160 | )\r | |
161 | /*++\r | |
162 | \r | |
163 | Routine Description:\r | |
164 | Return the state of interrupts.\r | |
165 | \r | |
166 | Arguments:\r | |
167 | This - Protocol instance structure\r | |
168 | State - Pointer to the CPU's current interrupt state\r | |
169 | \r | |
170 | Returns: \r | |
171 | EFI_SUCCESS - If interrupts were disabled in the CPU.\r | |
172 | EFI_INVALID_PARAMETER - State is NULL.\r | |
173 | \r | |
174 | --*/\r | |
175 | {\r | |
176 | if (State == NULL) {\r | |
177 | return EFI_INVALID_PARAMETER;\r | |
178 | }\r | |
179 | \r | |
180 | *State = mInterruptState;\r | |
181 | return EFI_SUCCESS;\r | |
182 | }\r | |
183 | \r | |
184 | \r | |
185 | EFI_STATUS\r | |
186 | EFIAPI\r | |
187 | CpuInit (\r | |
188 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
189 | IN EFI_CPU_INIT_TYPE InitType\r | |
190 | )\r | |
191 | \r | |
192 | /*++\r | |
193 | \r | |
194 | Routine Description:\r | |
195 | Generates an INIT to the CPU\r | |
196 | \r | |
197 | Arguments:\r | |
198 | This - Protocol instance structure\r | |
199 | InitType - Type of CPU INIT to perform\r | |
200 | \r | |
201 | Returns: \r | |
202 | EFI_SUCCESS - If CPU INIT occurred. This value should never be\r | |
203 | seen.\r | |
204 | EFI_DEVICE_ERROR - If CPU INIT failed.\r | |
205 | EFI_NOT_SUPPORTED - Requested type of CPU INIT not supported.\r | |
206 | \r | |
207 | --*/\r | |
208 | {\r | |
209 | return EFI_UNSUPPORTED;\r | |
210 | }\r | |
211 | \r | |
212 | \r | |
213 | EFI_STATUS\r | |
214 | EFIAPI\r | |
215 | CpuRegisterInterruptHandler (\r | |
216 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
217 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
218 | IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler\r | |
219 | )\r | |
220 | /*++\r | |
221 | \r | |
222 | Routine Description:\r | |
223 | Registers a function to be called from the CPU interrupt handler.\r | |
224 | \r | |
225 | Arguments:\r | |
226 | This - Protocol instance structure\r | |
227 | InterruptType - Defines which interrupt to hook. IA-32 valid range\r | |
228 | is 0x00 through 0xFF\r | |
229 | InterruptHandler - A pointer to a function of type \r | |
230 | EFI_CPU_INTERRUPT_HANDLER that is called when a\r | |
231 | processor interrupt occurs. A null pointer\r | |
232 | is an error condition.\r | |
233 | \r | |
234 | Returns: \r | |
235 | EFI_SUCCESS - If handler installed or uninstalled.\r | |
236 | EFI_ALREADY_STARTED - InterruptHandler is not NULL, and a handler for \r | |
237 | InterruptType was previously installed\r | |
238 | EFI_INVALID_PARAMETER - InterruptHandler is NULL, and a handler for \r | |
239 | InterruptType was not previously installed.\r | |
240 | EFI_UNSUPPORTED - The interrupt specified by InterruptType is not\r | |
241 | supported.\r | |
242 | \r | |
243 | --*/\r | |
244 | {\r | |
245 | if ((InterruptType < 0) || (InterruptType >= INTERRUPT_VECTOR_NUMBER)) {\r | |
246 | return EFI_UNSUPPORTED;\r | |
247 | }\r | |
248 | if ((UINTN)(UINT32)InterruptType != mTimerVector) {\r | |
249 | return EFI_UNSUPPORTED;\r | |
250 | }\r | |
251 | if ((mTimerHandler == NULL) && (InterruptHandler == NULL)) {\r | |
252 | return EFI_INVALID_PARAMETER;\r | |
253 | } else if ((mTimerHandler != NULL) && (InterruptHandler != NULL)) {\r | |
254 | return EFI_ALREADY_STARTED;\r | |
255 | }\r | |
256 | mTimerHandler = InterruptHandler;\r | |
257 | return EFI_SUCCESS;\r | |
258 | }\r | |
259 | \r | |
260 | EFI_STATUS\r | |
261 | EFIAPI\r | |
262 | CpuGetTimerValue (\r | |
263 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
264 | IN UINT32 TimerIndex,\r | |
265 | OUT UINT64 *TimerValue,\r | |
266 | OUT UINT64 *TimerPeriod OPTIONAL\r | |
267 | )\r | |
268 | /*++\r | |
269 | \r | |
270 | Routine Description:\r | |
271 | Returns a timer value from one of the CPU's internal timers. There is no\r | |
272 | inherent time interval between ticks but is a function of the CPU \r | |
273 | frequency.\r | |
274 | \r | |
275 | Arguments:\r | |
276 | This - Protocol instance structure\r | |
277 | TimerIndex - Specifies which CPU timer ie requested\r | |
278 | TimerValue - Pointer to the returned timer value\r | |
279 | TimerPeriod - \r | |
280 | \r | |
281 | Returns: \r | |
282 | EFI_SUCCESS - If the CPU timer count was returned.\r | |
283 | EFI_UNSUPPORTED - If the CPU does not have any readable timers\r | |
284 | EFI_DEVICE_ERROR - If an error occurred reading the timer.\r | |
285 | EFI_INVALID_PARAMETER - TimerIndex is not valid\r | |
286 | \r | |
287 | --*/\r | |
288 | { \r | |
289 | if (TimerValue == NULL) {\r | |
290 | return EFI_INVALID_PARAMETER;\r | |
291 | }\r | |
292 | \r | |
293 | if (TimerIndex == 0) {\r | |
294 | *TimerValue = AsmReadTsc ();\r | |
295 | if (TimerPeriod != NULL) {\r | |
296 | //\r | |
297 | // BugBug: Hard coded. Don't know how to do this generically\r | |
298 | //\r | |
299 | *TimerPeriod = 1000000000;\r | |
300 | }\r | |
301 | return EFI_SUCCESS;\r | |
302 | }\r | |
303 | return EFI_INVALID_PARAMETER;\r | |
304 | }\r | |
305 | \r | |
306 | EFI_STATUS\r | |
307 | EFIAPI\r | |
308 | CpuSetMemoryAttributes (\r | |
309 | IN EFI_CPU_ARCH_PROTOCOL *This,\r | |
310 | IN EFI_PHYSICAL_ADDRESS BaseAddress,\r | |
311 | IN UINT64 Length,\r | |
312 | IN UINT64 Attributes\r | |
313 | )\r | |
314 | /*++\r | |
315 | \r | |
316 | Routine Description:\r | |
317 | Set memory cacheability attributes for given range of memeory\r | |
318 | \r | |
319 | Arguments:\r | |
320 | This - Protocol instance structure\r | |
321 | BaseAddress - Specifies the start address of the memory range\r | |
322 | Length - Specifies the length of the memory range\r | |
323 | Attributes - The memory cacheability for the memory range\r | |
324 | \r | |
325 | Returns: \r | |
326 | EFI_SUCCESS - If the cacheability of that memory range is set successfully\r | |
327 | EFI_UNSUPPORTED - If the desired operation cannot be done\r | |
328 | EFI_INVALID_PARAMETER - The input parameter is not correct, such as Length = 0\r | |
329 | \r | |
330 | --*/\r | |
331 | {\r | |
332 | return EFI_UNSUPPORTED;\r | |
333 | }\r | |
334 | \r | |
335 | #if CPU_EXCEPTION_DEBUG_OUTPUT\r | |
c69dd9df | 336 | VOID\r |
337 | DumpExceptionDataDebugOut (\r | |
338 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
339 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
340 | )\r | |
341 | {\r | |
342 | UINT32 ErrorCodeFlag;\r | |
343 | \r | |
344 | ErrorCodeFlag = 0x00027d00;\r | |
345 | \r | |
346 | #ifdef EFI32\r | |
347 | DEBUG ((\r | |
348 | EFI_D_ERROR,\r | |
349 | "!!!! IA32 Exception Type - %08x !!!!\n",\r | |
350 | InterruptType\r | |
351 | ));\r | |
352 | DEBUG ((\r | |
353 | EFI_D_ERROR,\r | |
354 | "EIP - %08x, CS - %08x, EFLAGS - %08x\n",\r | |
355 | SystemContext.SystemContextIa32->Eip,\r | |
356 | SystemContext.SystemContextIa32->Cs,\r | |
357 | SystemContext.SystemContextIa32->Eflags\r | |
358 | ));\r | |
359 | if (ErrorCodeFlag & (1 << InterruptType)) {\r | |
360 | DEBUG ((\r | |
361 | EFI_D_ERROR,\r | |
362 | "ExceptionData - %08x\n",\r | |
363 | SystemContext.SystemContextIa32->ExceptionData\r | |
364 | ));\r | |
365 | }\r | |
366 | DEBUG ((\r | |
367 | EFI_D_ERROR,\r | |
368 | "EAX - %08x, ECX - %08x, EDX - %08x, EBX - %08x\n",\r | |
369 | SystemContext.SystemContextIa32->Eax,\r | |
370 | SystemContext.SystemContextIa32->Ecx,\r | |
371 | SystemContext.SystemContextIa32->Edx,\r | |
372 | SystemContext.SystemContextIa32->Ebx\r | |
373 | ));\r | |
374 | DEBUG ((\r | |
375 | EFI_D_ERROR,\r | |
376 | "ESP - %08x, EBP - %08x, ESI - %08x, EDI - %08x\n",\r | |
377 | SystemContext.SystemContextIa32->Esp,\r | |
378 | SystemContext.SystemContextIa32->Ebp,\r | |
379 | SystemContext.SystemContextIa32->Esi,\r | |
380 | SystemContext.SystemContextIa32->Edi\r | |
381 | ));\r | |
382 | DEBUG ((\r | |
383 | EFI_D_ERROR,\r | |
384 | "DS - %08x, ES - %08x, FS - %08x, GS - %08x, SS - %08x\n",\r | |
385 | SystemContext.SystemContextIa32->Ds,\r | |
386 | SystemContext.SystemContextIa32->Es,\r | |
387 | SystemContext.SystemContextIa32->Fs,\r | |
388 | SystemContext.SystemContextIa32->Gs,\r | |
389 | SystemContext.SystemContextIa32->Ss\r | |
390 | ));\r | |
391 | DEBUG ((\r | |
392 | EFI_D_ERROR,\r | |
393 | "GDTR - %08x %08x, IDTR - %08x %08x\n",\r | |
394 | SystemContext.SystemContextIa32->Gdtr[0],\r | |
395 | SystemContext.SystemContextIa32->Gdtr[1],\r | |
396 | SystemContext.SystemContextIa32->Idtr[0],\r | |
397 | SystemContext.SystemContextIa32->Idtr[1]\r | |
398 | ));\r | |
399 | DEBUG ((\r | |
400 | EFI_D_ERROR,\r | |
401 | "LDTR - %08x, TR - %08x\n",\r | |
402 | SystemContext.SystemContextIa32->Ldtr,\r | |
403 | SystemContext.SystemContextIa32->Tr\r | |
404 | ));\r | |
405 | DEBUG ((\r | |
406 | EFI_D_ERROR,\r | |
407 | "CR0 - %08x, CR2 - %08x, CR3 - %08x, CR4 - %08x\n",\r | |
408 | SystemContext.SystemContextIa32->Cr0,\r | |
409 | SystemContext.SystemContextIa32->Cr2,\r | |
410 | SystemContext.SystemContextIa32->Cr3,\r | |
411 | SystemContext.SystemContextIa32->Cr4\r | |
412 | ));\r | |
413 | DEBUG ((\r | |
414 | EFI_D_ERROR,\r | |
415 | "DR0 - %08x, DR1 - %08x, DR2 - %08x, DR3 - %08x\n",\r | |
416 | SystemContext.SystemContextIa32->Dr0,\r | |
417 | SystemContext.SystemContextIa32->Dr1,\r | |
418 | SystemContext.SystemContextIa32->Dr2,\r | |
419 | SystemContext.SystemContextIa32->Dr3\r | |
420 | ));\r | |
421 | DEBUG ((\r | |
422 | EFI_D_ERROR,\r | |
423 | "DR6 - %08x, DR7 - %08x\n",\r | |
424 | SystemContext.SystemContextIa32->Dr6,\r | |
425 | SystemContext.SystemContextIa32->Dr7\r | |
426 | ));\r | |
427 | #else\r | |
428 | DEBUG ((\r | |
429 | EFI_D_ERROR,\r | |
430 | "!!!! X64 Exception Type - %016lx !!!!\n",\r | |
431 | (UINT64)InterruptType\r | |
432 | ));\r | |
433 | DEBUG ((\r | |
434 | EFI_D_ERROR,\r | |
435 | "RIP - %016lx, CS - %016lx, RFLAGS - %016lx\n",\r | |
436 | SystemContext.SystemContextX64->Rip,\r | |
437 | SystemContext.SystemContextX64->Cs,\r | |
438 | SystemContext.SystemContextX64->Rflags\r | |
439 | ));\r | |
440 | if (ErrorCodeFlag & (1 << InterruptType)) {\r | |
441 | DEBUG ((\r | |
442 | EFI_D_ERROR,\r | |
443 | "ExceptionData - %016lx\n",\r | |
444 | SystemContext.SystemContextX64->ExceptionData\r | |
445 | ));\r | |
446 | }\r | |
447 | DEBUG ((\r | |
448 | EFI_D_ERROR,\r | |
449 | "RAX - %016lx, RCX - %016lx, RDX - %016lx\n",\r | |
450 | SystemContext.SystemContextX64->Rax,\r | |
451 | SystemContext.SystemContextX64->Rcx,\r | |
452 | SystemContext.SystemContextX64->Rdx\r | |
453 | ));\r | |
454 | DEBUG ((\r | |
455 | EFI_D_ERROR,\r | |
456 | "RBX - %016lx, RSP - %016lx, RBP - %016lx\n",\r | |
457 | SystemContext.SystemContextX64->Rbx,\r | |
458 | SystemContext.SystemContextX64->Rsp,\r | |
459 | SystemContext.SystemContextX64->Rbp\r | |
460 | ));\r | |
461 | DEBUG ((\r | |
462 | EFI_D_ERROR,\r | |
463 | "RSI - %016lx, RDI - %016lx\n",\r | |
464 | SystemContext.SystemContextX64->Rsi,\r | |
465 | SystemContext.SystemContextX64->Rdi\r | |
466 | ));\r | |
467 | DEBUG ((\r | |
468 | EFI_D_ERROR,\r | |
469 | "R8 - %016lx, R9 - %016lx, R10 - %016lx\n",\r | |
470 | SystemContext.SystemContextX64->R8,\r | |
471 | SystemContext.SystemContextX64->R9,\r | |
472 | SystemContext.SystemContextX64->R10\r | |
473 | ));\r | |
474 | DEBUG ((\r | |
475 | EFI_D_ERROR,\r | |
476 | "R11 - %016lx, R12 - %016lx, R13 - %016lx\n",\r | |
477 | SystemContext.SystemContextX64->R11,\r | |
478 | SystemContext.SystemContextX64->R12,\r | |
479 | SystemContext.SystemContextX64->R13\r | |
480 | ));\r | |
481 | DEBUG ((\r | |
482 | EFI_D_ERROR,\r | |
483 | "R14 - %016lx, R15 - %016lx\n",\r | |
484 | SystemContext.SystemContextX64->R14,\r | |
485 | SystemContext.SystemContextX64->R15\r | |
486 | ));\r | |
487 | DEBUG ((\r | |
488 | EFI_D_ERROR,\r | |
489 | "DS - %016lx, ES - %016lx, FS - %016lx\n",\r | |
490 | SystemContext.SystemContextX64->Ds,\r | |
491 | SystemContext.SystemContextX64->Es,\r | |
492 | SystemContext.SystemContextX64->Fs\r | |
493 | ));\r | |
494 | DEBUG ((\r | |
495 | EFI_D_ERROR,\r | |
496 | "GS - %016lx, SS - %016lx\n",\r | |
497 | SystemContext.SystemContextX64->Gs,\r | |
498 | SystemContext.SystemContextX64->Ss\r | |
499 | ));\r | |
500 | DEBUG ((\r | |
501 | EFI_D_ERROR,\r | |
502 | "GDTR - %016lx %016lx, LDTR - %016lx\n",\r | |
503 | SystemContext.SystemContextX64->Gdtr[0],\r | |
504 | SystemContext.SystemContextX64->Gdtr[1],\r | |
505 | SystemContext.SystemContextX64->Ldtr\r | |
506 | ));\r | |
507 | DEBUG ((\r | |
508 | EFI_D_ERROR,\r | |
509 | "IDTR - %016lx %016lx, TR - %016lx\n",\r | |
510 | SystemContext.SystemContextX64->Idtr[0],\r | |
511 | SystemContext.SystemContextX64->Idtr[1],\r | |
512 | SystemContext.SystemContextX64->Tr\r | |
513 | ));\r | |
514 | DEBUG ((\r | |
515 | EFI_D_ERROR,\r | |
516 | "CR0 - %016lx, CR2 - %016lx, CR3 - %016lx\n",\r | |
517 | SystemContext.SystemContextX64->Cr0,\r | |
518 | SystemContext.SystemContextX64->Cr2,\r | |
519 | SystemContext.SystemContextX64->Cr3\r | |
520 | ));\r | |
521 | DEBUG ((\r | |
522 | EFI_D_ERROR,\r | |
523 | "CR4 - %016lx, CR8 - %016lx\n",\r | |
524 | SystemContext.SystemContextX64->Cr4,\r | |
525 | SystemContext.SystemContextX64->Cr8\r | |
526 | ));\r | |
527 | DEBUG ((\r | |
528 | EFI_D_ERROR,\r | |
529 | "DR0 - %016lx, DR1 - %016lx, DR2 - %016lx\n",\r | |
530 | SystemContext.SystemContextX64->Dr0,\r | |
531 | SystemContext.SystemContextX64->Dr1,\r | |
532 | SystemContext.SystemContextX64->Dr2\r | |
533 | ));\r | |
534 | DEBUG ((\r | |
535 | EFI_D_ERROR,\r | |
536 | "DR3 - %016lx, DR6 - %016lx, DR7 - %016lx\n",\r | |
537 | SystemContext.SystemContextX64->Dr3,\r | |
538 | SystemContext.SystemContextX64->Dr6,\r | |
539 | SystemContext.SystemContextX64->Dr7\r | |
540 | ));\r | |
541 | #endif\r | |
542 | return ;\r | |
543 | }\r | |
544 | #endif\r | |
545 | \r | |
c69dd9df | 546 | UINTN\r |
547 | SPrint (\r | |
548 | IN OUT CHAR16 *Buffer,\r | |
549 | IN CONST CHAR16 *Format,\r | |
550 | ...\r | |
551 | )\r | |
552 | {\r | |
553 | VA_LIST Marker;\r | |
554 | UINTN Index;\r | |
555 | UINTN Flags;\r | |
556 | UINTN Width;\r | |
557 | UINT64 Value;\r | |
558 | \r | |
559 | VA_START (Marker, Format);\r | |
560 | \r | |
561 | //\r | |
562 | // Process the format string. Stop if Buffer is over run.\r | |
563 | //\r | |
564 | \r | |
565 | for (Index = 0; *Format != 0; Format++) {\r | |
566 | if (*Format != L'%') {\r | |
567 | Buffer[Index++] = *Format;\r | |
568 | } else {\r | |
569 | \r | |
570 | //\r | |
571 | // Now it's time to parse what follows after %\r | |
572 | // Support: % [ 0 width ] [ l ] x\r | |
573 | // width - fill 0, to ensure the width of x will be "width"\r | |
574 | // l - UINT64 instead of UINT32\r | |
575 | //\r | |
576 | Width = 0;\r | |
577 | Flags = 0;\r | |
578 | Format ++;\r | |
579 | \r | |
580 | if (*Format == L'0') {\r | |
581 | Flags |= PREFIX_ZERO;\r | |
582 | do {\r | |
583 | Width += Width * 10 + (*Format - L'0');\r | |
584 | Format ++;\r | |
585 | } while (*Format >= L'1' && *Format <= L'9');\r | |
586 | }\r | |
587 | \r | |
588 | if (*Format == L'l') {\r | |
589 | Flags |= LONG_TYPE;\r | |
590 | Format ++;\r | |
591 | }\r | |
592 | \r | |
593 | \r | |
594 | switch (*Format) {\r | |
595 | case 'X':\r | |
596 | Flags |= PREFIX_ZERO;\r | |
597 | Width = sizeof (UINT64) * 2;\r | |
598 | //\r | |
599 | // break skiped on purpose\r | |
600 | //\r | |
601 | case 'x':\r | |
602 | if ((Flags & LONG_TYPE) == LONG_TYPE) {\r | |
603 | Value = VA_ARG (Marker, UINT64);\r | |
604 | } else {\r | |
605 | Value = VA_ARG (Marker, UINTN);\r | |
606 | }\r | |
607 | \r | |
608 | UnicodeValueToString (Buffer+Index, Flags, Value, Width);\r | |
609 | \r | |
610 | for ( ; Buffer[Index] != L'\0'; Index ++) {\r | |
611 | }\r | |
612 | \r | |
613 | break;\r | |
614 | \r | |
615 | default:\r | |
616 | //\r | |
617 | // if the type is unknown print it to the screen\r | |
618 | //\r | |
619 | Buffer[Index++] = *Format;\r | |
620 | }\r | |
621 | } \r | |
622 | }\r | |
623 | Buffer[Index++] = '\0'; \r | |
624 | \r | |
625 | VA_END (Marker);\r | |
626 | return Index;\r | |
627 | }\r | |
628 | \r | |
c69dd9df | 629 | VOID\r |
630 | DumpExceptionDataVgaOut (\r | |
631 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
632 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
633 | )\r | |
634 | {\r | |
635 | UINTN COLUMN_MAX;\r | |
636 | UINTN ROW_MAX;\r | |
637 | UINT32 ErrorCodeFlag;\r | |
638 | CHAR16 *VideoBufferBase;\r | |
639 | CHAR16 *VideoBuffer;\r | |
640 | UINTN Index;\r | |
641 | \r | |
642 | COLUMN_MAX = 80;\r | |
643 | ROW_MAX = 25;\r | |
644 | ErrorCodeFlag = 0x00027d00;\r | |
645 | VideoBufferBase = (CHAR16 *) (UINTN) 0xb8000;\r | |
646 | VideoBuffer = (CHAR16 *) (UINTN) 0xb8000;\r | |
647 | \r | |
648 | #ifdef EFI32\r | |
649 | SPrint (\r | |
650 | VideoBuffer, \r | |
651 | L"!!!! IA32 Exception Type - %08x !!!!",\r | |
652 | InterruptType\r | |
653 | );\r | |
654 | VideoBuffer += COLUMN_MAX;\r | |
655 | SPrint (\r | |
656 | VideoBuffer, \r | |
657 | L"EIP - %08x, CS - %08x, EFLAGS - %08x",\r | |
658 | SystemContext.SystemContextIa32->Eip,\r | |
659 | SystemContext.SystemContextIa32->Cs,\r | |
660 | SystemContext.SystemContextIa32->Eflags\r | |
661 | );\r | |
662 | VideoBuffer += COLUMN_MAX;\r | |
663 | if (ErrorCodeFlag & (1 << InterruptType)) {\r | |
664 | SPrint (\r | |
665 | VideoBuffer,\r | |
666 | L"ExceptionData - %08x",\r | |
667 | SystemContext.SystemContextIa32->ExceptionData\r | |
668 | );\r | |
669 | VideoBuffer += COLUMN_MAX;\r | |
670 | }\r | |
671 | SPrint (\r | |
672 | VideoBuffer,\r | |
673 | L"EAX - %08x, ECX - %08x, EDX - %08x, EBX - %08x",\r | |
674 | SystemContext.SystemContextIa32->Eax,\r | |
675 | SystemContext.SystemContextIa32->Ecx,\r | |
676 | SystemContext.SystemContextIa32->Edx,\r | |
677 | SystemContext.SystemContextIa32->Ebx\r | |
678 | );\r | |
679 | VideoBuffer += COLUMN_MAX;\r | |
680 | \r | |
681 | SPrint (\r | |
682 | VideoBuffer,\r | |
683 | L"ESP - %08x, EBP - %08x, ESI - %08x, EDI - %08x",\r | |
684 | SystemContext.SystemContextIa32->Esp,\r | |
685 | SystemContext.SystemContextIa32->Ebp,\r | |
686 | SystemContext.SystemContextIa32->Esi,\r | |
687 | SystemContext.SystemContextIa32->Edi\r | |
688 | );\r | |
689 | VideoBuffer += COLUMN_MAX;\r | |
690 | \r | |
691 | SPrint (\r | |
692 | VideoBuffer,\r | |
693 | L"DS - %08x, ES - %08x, FS - %08x, GS - %08x, SS - %08x",\r | |
694 | SystemContext.SystemContextIa32->Ds,\r | |
695 | SystemContext.SystemContextIa32->Es,\r | |
696 | SystemContext.SystemContextIa32->Fs,\r | |
697 | SystemContext.SystemContextIa32->Gs,\r | |
698 | SystemContext.SystemContextIa32->Ss\r | |
699 | );\r | |
700 | VideoBuffer += COLUMN_MAX;\r | |
701 | \r | |
702 | SPrint (\r | |
703 | VideoBuffer,\r | |
704 | L"GDTR - %08x %08x, IDTR - %08x %08x",\r | |
705 | SystemContext.SystemContextIa32->Gdtr[0],\r | |
706 | SystemContext.SystemContextIa32->Gdtr[1],\r | |
707 | SystemContext.SystemContextIa32->Idtr[0],\r | |
708 | SystemContext.SystemContextIa32->Idtr[1]\r | |
709 | );\r | |
710 | VideoBuffer += COLUMN_MAX;\r | |
711 | \r | |
712 | SPrint (\r | |
713 | VideoBuffer,\r | |
714 | L"LDTR - %08x, TR - %08x",\r | |
715 | SystemContext.SystemContextIa32->Ldtr,\r | |
716 | SystemContext.SystemContextIa32->Tr\r | |
717 | );\r | |
718 | VideoBuffer += COLUMN_MAX;\r | |
719 | \r | |
720 | SPrint (\r | |
721 | VideoBuffer,\r | |
722 | L"CR0 - %08x, CR2 - %08x, CR3 - %08x, CR4 - %08x",\r | |
723 | SystemContext.SystemContextIa32->Cr0,\r | |
724 | SystemContext.SystemContextIa32->Cr2,\r | |
725 | SystemContext.SystemContextIa32->Cr3,\r | |
726 | SystemContext.SystemContextIa32->Cr4\r | |
727 | );\r | |
728 | VideoBuffer += COLUMN_MAX;\r | |
729 | \r | |
730 | SPrint (\r | |
731 | VideoBuffer,\r | |
732 | L"DR0 - %08x, DR1 - %08x, DR2 - %08x, DR3 - %08x",\r | |
733 | SystemContext.SystemContextIa32->Dr0,\r | |
734 | SystemContext.SystemContextIa32->Dr1,\r | |
735 | SystemContext.SystemContextIa32->Dr2,\r | |
736 | SystemContext.SystemContextIa32->Dr3\r | |
737 | );\r | |
738 | VideoBuffer += COLUMN_MAX;\r | |
739 | \r | |
740 | SPrint (\r | |
741 | VideoBuffer,\r | |
742 | L"DR6 - %08x, DR7 - %08x",\r | |
743 | SystemContext.SystemContextIa32->Dr6,\r | |
744 | SystemContext.SystemContextIa32->Dr7\r | |
745 | );\r | |
746 | VideoBuffer += COLUMN_MAX;\r | |
747 | #else\r | |
748 | SPrint (\r | |
749 | VideoBuffer,\r | |
750 | L"!!!! X64 Exception Type - %016lx !!!!",\r | |
751 | (UINT64)InterruptType\r | |
752 | );\r | |
753 | VideoBuffer += COLUMN_MAX;\r | |
754 | \r | |
755 | SPrint (\r | |
756 | VideoBuffer,\r | |
757 | L"RIP - %016lx, CS - %016lx, RFLAGS - %016lx",\r | |
758 | SystemContext.SystemContextX64->Rip,\r | |
759 | SystemContext.SystemContextX64->Cs,\r | |
760 | SystemContext.SystemContextX64->Rflags\r | |
761 | );\r | |
762 | VideoBuffer += COLUMN_MAX;\r | |
763 | \r | |
764 | if (ErrorCodeFlag & (1 << InterruptType)) {\r | |
765 | SPrint (\r | |
766 | VideoBuffer,\r | |
767 | L"ExceptionData - %016lx",\r | |
768 | SystemContext.SystemContextX64->ExceptionData\r | |
769 | );\r | |
770 | VideoBuffer += COLUMN_MAX;\r | |
771 | }\r | |
772 | \r | |
773 | SPrint (\r | |
774 | VideoBuffer,\r | |
775 | L"RAX - %016lx, RCX - %016lx, RDX - %016lx",\r | |
776 | SystemContext.SystemContextX64->Rax,\r | |
777 | SystemContext.SystemContextX64->Rcx,\r | |
778 | SystemContext.SystemContextX64->Rdx\r | |
779 | );\r | |
780 | VideoBuffer += COLUMN_MAX;\r | |
781 | \r | |
782 | SPrint (\r | |
783 | VideoBuffer,\r | |
784 | L"RBX - %016lx, RSP - %016lx, RBP - %016lx",\r | |
785 | SystemContext.SystemContextX64->Rbx,\r | |
786 | SystemContext.SystemContextX64->Rsp,\r | |
787 | SystemContext.SystemContextX64->Rbp\r | |
788 | );\r | |
789 | VideoBuffer += COLUMN_MAX;\r | |
790 | \r | |
791 | SPrint (\r | |
792 | VideoBuffer,\r | |
793 | L"RSI - %016lx, RDI - %016lx",\r | |
794 | SystemContext.SystemContextX64->Rsi,\r | |
795 | SystemContext.SystemContextX64->Rdi\r | |
796 | );\r | |
797 | VideoBuffer += COLUMN_MAX;\r | |
798 | \r | |
799 | SPrint (\r | |
800 | VideoBuffer,\r | |
801 | L"R8 - %016lx, R9 - %016lx, R10 - %016lx",\r | |
802 | SystemContext.SystemContextX64->R8,\r | |
803 | SystemContext.SystemContextX64->R9,\r | |
804 | SystemContext.SystemContextX64->R10\r | |
805 | );\r | |
806 | VideoBuffer += COLUMN_MAX;\r | |
807 | \r | |
808 | SPrint (\r | |
809 | VideoBuffer,\r | |
810 | L"R11 - %016lx, R12 - %016lx, R13 - %016lx",\r | |
811 | SystemContext.SystemContextX64->R11,\r | |
812 | SystemContext.SystemContextX64->R12,\r | |
813 | SystemContext.SystemContextX64->R13\r | |
814 | );\r | |
815 | VideoBuffer += COLUMN_MAX;\r | |
816 | \r | |
817 | SPrint (\r | |
818 | VideoBuffer,\r | |
819 | L"R14 - %016lx, R15 - %016lx",\r | |
820 | SystemContext.SystemContextX64->R14,\r | |
821 | SystemContext.SystemContextX64->R15\r | |
822 | );\r | |
823 | VideoBuffer += COLUMN_MAX;\r | |
824 | \r | |
825 | SPrint (\r | |
826 | VideoBuffer,\r | |
827 | L"DS - %016lx, ES - %016lx, FS - %016lx",\r | |
828 | SystemContext.SystemContextX64->Ds,\r | |
829 | SystemContext.SystemContextX64->Es,\r | |
830 | SystemContext.SystemContextX64->Fs\r | |
831 | );\r | |
832 | VideoBuffer += COLUMN_MAX;\r | |
833 | \r | |
834 | SPrint (\r | |
835 | VideoBuffer,\r | |
836 | L"GS - %016lx, SS - %016lx",\r | |
837 | SystemContext.SystemContextX64->Gs,\r | |
838 | SystemContext.SystemContextX64->Ss\r | |
839 | );\r | |
840 | VideoBuffer += COLUMN_MAX;\r | |
841 | \r | |
842 | SPrint (\r | |
843 | VideoBuffer,\r | |
844 | L"GDTR - %016lx %016lx, LDTR - %016lx",\r | |
845 | SystemContext.SystemContextX64->Gdtr[0],\r | |
846 | SystemContext.SystemContextX64->Gdtr[1],\r | |
847 | SystemContext.SystemContextX64->Ldtr\r | |
848 | );\r | |
849 | VideoBuffer += COLUMN_MAX;\r | |
850 | \r | |
851 | SPrint (\r | |
852 | VideoBuffer,\r | |
853 | L"IDTR - %016lx %016lx, TR - %016lx",\r | |
854 | SystemContext.SystemContextX64->Idtr[0],\r | |
855 | SystemContext.SystemContextX64->Idtr[1],\r | |
856 | SystemContext.SystemContextX64->Tr\r | |
857 | );\r | |
858 | VideoBuffer += COLUMN_MAX;\r | |
859 | \r | |
860 | SPrint (\r | |
861 | VideoBuffer,\r | |
862 | L"CR0 - %016lx, CR2 - %016lx, CR3 - %016lx",\r | |
863 | SystemContext.SystemContextX64->Cr0,\r | |
864 | SystemContext.SystemContextX64->Cr2,\r | |
865 | SystemContext.SystemContextX64->Cr3\r | |
866 | );\r | |
867 | VideoBuffer += COLUMN_MAX;\r | |
868 | \r | |
869 | SPrint (\r | |
870 | VideoBuffer,\r | |
871 | L"CR4 - %016lx, CR8 - %016lx",\r | |
872 | SystemContext.SystemContextX64->Cr4,\r | |
873 | SystemContext.SystemContextX64->Cr8\r | |
874 | );\r | |
875 | VideoBuffer += COLUMN_MAX;\r | |
876 | \r | |
877 | SPrint (\r | |
878 | VideoBuffer,\r | |
879 | L"DR0 - %016lx, DR1 - %016lx, DR2 - %016lx",\r | |
880 | SystemContext.SystemContextX64->Dr0,\r | |
881 | SystemContext.SystemContextX64->Dr1,\r | |
882 | SystemContext.SystemContextX64->Dr2\r | |
883 | );\r | |
884 | VideoBuffer += COLUMN_MAX;\r | |
885 | \r | |
886 | SPrint (\r | |
887 | VideoBuffer,\r | |
888 | L"DR3 - %016lx, DR6 - %016lx, DR7 - %016lx",\r | |
889 | SystemContext.SystemContextX64->Dr3,\r | |
890 | SystemContext.SystemContextX64->Dr6,\r | |
891 | SystemContext.SystemContextX64->Dr7\r | |
892 | );\r | |
893 | VideoBuffer += COLUMN_MAX;\r | |
894 | #endif\r | |
895 | \r | |
896 | for (Index = 0; Index < COLUMN_MAX * ROW_MAX; Index ++) {\r | |
897 | if (Index > (UINTN)(VideoBuffer - VideoBufferBase)) {\r | |
898 | VideoBufferBase[Index] = 0x0c20;\r | |
899 | } else {\r | |
900 | VideoBufferBase[Index] |= 0x0c00;\r | |
901 | }\r | |
902 | }\r | |
903 | \r | |
904 | return ;\r | |
905 | }\r | |
906 | \r | |
907 | #if CPU_EXCEPTION_VGA_SWITCH\r | |
c69dd9df | 908 | UINT16\r |
909 | SwitchVideoMode (\r | |
910 | UINT16 NewVideoMode\r | |
911 | )\r | |
912 | /*++\r | |
913 | Description\r | |
914 | Switch Video Mode from current mode to new mode, and return the old mode.\r | |
915 | Use Thuink\r | |
916 | \r | |
917 | Arguments\r | |
918 | NewVideoMode - new video mode want to set\r | |
919 | \r | |
920 | Return\r | |
921 | UINT16 - (UINT16) -1 indicates failure\r | |
922 | Other value indicates the old mode, which can be used for restore later\r | |
923 | \r | |
924 | --*/\r | |
925 | {\r | |
926 | EFI_STATUS Status;\r | |
927 | EFI_LEGACY_BIOS_THUNK_PROTOCOL *LegacyBios;\r | |
928 | EFI_IA32_REGISTER_SET Regs;\r | |
929 | UINT16 OriginalVideoMode = (UINT16) -1;\r | |
930 | \r | |
c69dd9df | 931 | \r |
932 | //\r | |
933 | // VESA SuperVGA BIOS - GET CURRENT VIDEO MODE\r | |
934 | // AX = 4F03h\r | |
935 | // Return:AL = 4Fh if function supported\r | |
936 | // AH = status 00h successful\r | |
937 | // BX = video mode (see #0082,#0083)\r | |
938 | //\r | |
939 | gBS->SetMem (&Regs, sizeof (Regs), 0);\r | |
940 | Regs.X.AX = 0x4F03;\r | |
23833b2c | 941 | LegacyBiosInt86 (0x10, &Regs);\r |
c69dd9df | 942 | if (Regs.X.AX == 0x004F) {\r |
943 | OriginalVideoMode = Regs.X.BX;\r | |
944 | } else {\r | |
945 | //\r | |
946 | // VIDEO - GET CURRENT VIDEO MODE\r | |
947 | // AH = 0Fh\r | |
948 | // Return:AH = number of character columns\r | |
949 | // AL = display mode (see #0009 at AH=00h)\r | |
950 | // BH = active page (see AH=05h)\r | |
951 | //\r | |
952 | gBS->SetMem (&Regs, sizeof (Regs), 0);\r | |
953 | Regs.H.AH = 0x0F;\r | |
23833b2c | 954 | LegacyBiosInt86 (0x10, &Regs);\r |
c69dd9df | 955 | OriginalVideoMode = Regs.H.AL;\r |
956 | }\r | |
957 | \r | |
958 | //\r | |
959 | // Set new video mode\r | |
960 | //\r | |
961 | if (NewVideoMode < 0x100) {\r | |
962 | //\r | |
963 | // Set the 80x25 Text VGA Mode: Assume successful always\r | |
964 | //\r | |
965 | // VIDEO - SET VIDEO MODE\r | |
966 | // AH = 00h\r | |
967 | // AL = desired video mode (see #0009)\r | |
968 | // Return:AL = video mode flag (Phoenix, AMI BIOS)\r | |
969 | // 20h mode > 7\r | |
970 | // 30h modes 0-5 and 7\r | |
971 | // 3Fh mode 6\r | |
972 | // AL = CRT controller mode byte (Phoenix 386 BIOS v1.10)\r | |
973 | //\r | |
974 | gBS->SetMem (&Regs, sizeof (Regs), 0);\r | |
975 | Regs.H.AH = 0x00;\r | |
976 | Regs.H.AL = (UINT8) NewVideoMode;\r | |
23833b2c | 977 | LegacyBiosInt86 (0x10, &Regs);\r |
c69dd9df | 978 | \r |
979 | //\r | |
980 | // VIDEO - TEXT-MODE CHARGEN - LOAD ROM 8x16 CHARACTER SET (VGA)\r | |
981 | // AX = 1114h\r | |
982 | // BL = block to load\r | |
983 | // Return:Nothing\r | |
984 | //\r | |
985 | gBS->SetMem (&Regs, sizeof (Regs), 0);\r | |
986 | Regs.H.AH = 0x11;\r | |
987 | Regs.H.AL = 0x14;\r | |
988 | Regs.H.BL = 0;\r | |
23833b2c | 989 | LegacyBiosInt86 (0x10, &Regs);\r |
c69dd9df | 990 | } else {\r |
991 | //\r | |
992 | // VESA SuperVGA BIOS - SET SuperVGA VIDEO MODE\r | |
993 | // AX = 4F02h\r | |
994 | // BX = mode (see #0082,#0083)\r | |
995 | // bit 15 set means don't clear video memory\r | |
996 | // bit 14 set means enable linear framebuffer mode (VBE v2.0+)\r | |
997 | // Return:AL = 4Fh if function supported\r | |
998 | // AH = status\r | |
999 | // 00h successful\r | |
1000 | // 01h failed\r | |
1001 | //\r | |
1002 | gBS->SetMem (&Regs, sizeof (Regs), 0);\r | |
1003 | Regs.X.AX = 0x4F02;\r | |
1004 | Regs.X.BX = NewVideoMode;\r | |
23833b2c | 1005 | LegacyBiosInt86 (0x10, &Regs);\r |
c69dd9df | 1006 | if (Regs.X.AX != 0x004F) {\r |
1007 | DEBUG ((EFI_D_ERROR, "SORRY: Cannot set to video mode: 0x%04X!\n", NewVideoMode));\r | |
1008 | return (UINT16) -1;\r | |
1009 | }\r | |
1010 | }\r | |
1011 | \r | |
1012 | return OriginalVideoMode;\r | |
1013 | }\r | |
1014 | #endif\r | |
1015 | \r | |
1016 | VOID\r | |
1017 | ExceptionHandler (\r | |
1018 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
1019 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
1020 | )\r | |
1021 | {\r | |
1022 | #if CPU_EXCEPTION_VGA_SWITCH\r | |
1023 | UINT16 VideoMode;\r | |
1024 | #endif\r | |
1025 | \r | |
1026 | #if CPU_EXCEPTION_DEBUG_OUTPUT\r | |
1027 | DumpExceptionDataDebugOut (InterruptType, SystemContext);\r | |
1028 | #endif\r | |
1029 | \r | |
1030 | #if CPU_EXCEPTION_VGA_SWITCH\r | |
1031 | //\r | |
1032 | // Switch to text mode for RED-SCREEN output\r | |
1033 | //\r | |
1034 | VideoMode = SwitchVideoMode (0x83);\r | |
1035 | if (VideoMode == (UINT16) -1) {\r | |
1036 | DEBUG ((EFI_D_ERROR, "Video Mode Unknown!\n"));\r | |
1037 | }\r | |
1038 | #endif\r | |
1039 | \r | |
1040 | DumpExceptionDataVgaOut (InterruptType, SystemContext);\r | |
1041 | \r | |
1042 | //\r | |
1043 | // Use this macro to hang so that the compiler does not optimize out\r | |
1044 | // the following RET instructions. This allows us to return if we\r | |
1045 | // have a debugger attached.\r | |
1046 | //\r | |
1047 | CpuDeadLoop ();\r | |
1048 | \r | |
1049 | #if CPU_EXCEPTION_VGA_SWITCH\r | |
1050 | //\r | |
1051 | // Switch back to the old video mode\r | |
1052 | //\r | |
1053 | if (VideoMode != (UINT16)-1) {\r | |
1054 | SwitchVideoMode (VideoMode);\r | |
1055 | }\r | |
1056 | #endif\r | |
1057 | \r | |
1058 | return ;\r | |
1059 | }\r | |
1060 | \r | |
1061 | VOID\r | |
1062 | TimerHandler (\r | |
1063 | IN EFI_EXCEPTION_TYPE InterruptType,\r | |
1064 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
1065 | )\r | |
1066 | {\r | |
1067 | if (mTimerHandler != NULL) {\r | |
1068 | mTimerHandler (InterruptType, SystemContext);\r | |
1069 | }\r | |
1070 | }\r | |
1071 | \r | |
1072 | EFI_STATUS\r | |
1073 | EFIAPI\r | |
1074 | InitializeCpu (\r | |
1075 | IN EFI_HANDLE ImageHandle,\r | |
1076 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
1077 | )\r | |
1078 | /*++\r | |
1079 | \r | |
1080 | Routine Description:\r | |
1081 | Initialize the state information for the CPU Architectural Protocol\r | |
1082 | \r | |
1083 | Arguments:\r | |
1084 | ImageHandle of the loaded driver\r | |
1085 | Pointer to the System Table\r | |
1086 | \r | |
1087 | Returns:\r | |
1088 | EFI_SUCCESS - thread can be successfully created\r | |
1089 | EFI_OUT_OF_RESOURCES - cannot allocate protocol data structure\r | |
1090 | EFI_DEVICE_ERROR - cannot create the thread\r | |
1091 | \r | |
1092 | --*/\r | |
1093 | {\r | |
1094 | EFI_STATUS Status;\r | |
1095 | EFI_8259_IRQ Irq;\r | |
1096 | UINT32 InterruptVector;\r | |
1097 | \r | |
1098 | //\r | |
1099 | // Find the Legacy8259 protocol.\r | |
1100 | //\r | |
1101 | Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **) &gLegacy8259);\r | |
1102 | ASSERT_EFI_ERROR (Status);\r | |
1103 | \r | |
1104 | //\r | |
1105 | // Get the interrupt vector number corresponding to IRQ0 from the 8259 driver\r | |
1106 | //\r | |
1107 | Status = gLegacy8259->GetVector (gLegacy8259, Efi8259Irq0, (UINT8 *) &mTimerVector);\r | |
1108 | ASSERT_EFI_ERROR (Status);\r | |
1109 | \r | |
1110 | //\r | |
1111 | // Reload GDT, IDT\r | |
1112 | //\r | |
1113 | InitDescriptor ();\r | |
1114 | \r | |
1115 | //\r | |
1116 | // Install Exception Handler (0x00 ~ 0x1F)\r | |
1117 | //\r | |
1118 | for (InterruptVector = 0; InterruptVector < 0x20; InterruptVector++) {\r | |
1119 | InstallInterruptHandler (\r | |
1120 | InterruptVector,\r | |
1121 | (VOID (*)(VOID))(UINTN)((UINTN)SystemExceptionHandler + mExceptionCodeSize * InterruptVector)\r | |
1122 | );\r | |
1123 | }\r | |
1124 | \r | |
1125 | //\r | |
1126 | // Install Timer Handler\r | |
1127 | //\r | |
1128 | InstallInterruptHandler (mTimerVector, SystemTimerHandler);\r | |
1129 | \r | |
1130 | //\r | |
1131 | // BUGBUG: We add all other interrupt vector\r | |
1132 | //\r | |
1133 | for (Irq = Efi8259Irq1; Irq <= Efi8259Irq15; Irq++) {\r | |
1134 | InterruptVector = 0;\r | |
1135 | Status = gLegacy8259->GetVector (gLegacy8259, Irq, (UINT8 *) &InterruptVector);\r | |
1136 | ASSERT_EFI_ERROR (Status);\r | |
1137 | InstallInterruptHandler (InterruptVector, SystemTimerHandler);\r | |
1138 | }\r | |
1139 | \r | |
23833b2c | 1140 | InitializeBiosIntCaller();\r |
1141 | \r | |
c69dd9df | 1142 | //\r |
1143 | // Install CPU Architectural Protocol and the thunk protocol\r | |
1144 | //\r | |
1145 | mHandle = NULL;\r | |
1146 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
1147 | &mHandle,\r | |
1148 | &gEfiCpuArchProtocolGuid,\r | |
1149 | &mCpu,\r | |
1150 | NULL\r | |
1151 | );\r | |
1152 | ASSERT_EFI_ERROR (Status);\r | |
1153 | \r | |
1154 | return EFI_SUCCESS;\r | |
1155 | }\r | |
1156 | \r | |
23833b2c | 1157 | VOID\r |
1158 | InitializeBiosIntCaller (\r | |
1159 | VOID\r | |
1160 | )\r | |
1161 | {\r | |
1162 | EFI_STATUS Status;\r | |
1163 | UINT32 RealModeBufferSize;\r | |
1164 | UINT32 ExtraStackSize;\r | |
1165 | EFI_PHYSICAL_ADDRESS LegacyRegionBase;\r | |
1166 | \r | |
1167 | //\r | |
1168 | // Get LegacyRegion\r | |
1169 | //\r | |
1170 | AsmGetThunk16Properties (&RealModeBufferSize, &ExtraStackSize);\r | |
1171 | \r | |
1172 | LegacyRegionBase = 0x100000;\r | |
1173 | Status = gBS->AllocatePages (\r | |
1174 | AllocateMaxAddress,\r | |
1175 | EfiACPIMemoryNVS,\r | |
1176 | EFI_SIZE_TO_PAGES(RealModeBufferSize + ExtraStackSize + 200),\r | |
1177 | &LegacyRegionBase\r | |
1178 | );\r | |
1179 | ASSERT_EFI_ERROR (Status);\r | |
1180 | \r | |
1181 | mThunkContext.RealModeBuffer = (VOID*)(UINTN)LegacyRegionBase;\r | |
1182 | mThunkContext.RealModeBufferSize = EFI_PAGES_TO_SIZE (RealModeBufferSize);\r | |
1183 | mThunkContext.ThunkAttributes = 3;\r | |
1184 | AsmPrepareThunk16(&mThunkContext);\r | |
1185 | \r | |
1186 | }\r | |
1187 | \r | |
1188 | BOOLEAN\r | |
1189 | EFIAPI\r | |
1190 | LegacyBiosInt86 (\r | |
1191 | IN UINT8 BiosInt,\r | |
1192 | IN EFI_IA32_REGISTER_SET *Regs\r | |
1193 | )\r | |
1194 | {\r | |
1195 | UINTN Status;\r | |
1196 | UINTN Eflags;\r | |
1197 | IA32_REGISTER_SET ThunkRegSet;\r | |
1198 | BOOLEAN Ret;\r | |
1199 | UINT16 *Stack16;\r | |
1200 | \r | |
1201 | Regs->X.Flags.Reserved1 = 1;\r | |
1202 | Regs->X.Flags.Reserved2 = 0;\r | |
1203 | Regs->X.Flags.Reserved3 = 0;\r | |
1204 | Regs->X.Flags.Reserved4 = 0;\r | |
1205 | Regs->X.Flags.IOPL = 3;\r | |
1206 | Regs->X.Flags.NT = 0;\r | |
1207 | Regs->X.Flags.IF = 1;\r | |
1208 | Regs->X.Flags.TF = 0;\r | |
1209 | Regs->X.Flags.CF = 0;\r | |
1210 | \r | |
1211 | ZeroMem (&ThunkRegSet, sizeof (ThunkRegSet));\r | |
1212 | ThunkRegSet.E.EDI = Regs->E.EDI;\r | |
1213 | ThunkRegSet.E.ESI = Regs->E.ESI;\r | |
1214 | ThunkRegSet.E.EBP = Regs->E.EBP;\r | |
1215 | ThunkRegSet.E.EBX = Regs->E.EBX;\r | |
1216 | ThunkRegSet.E.EDX = Regs->E.EDX;\r | |
1217 | ThunkRegSet.E.ECX = Regs->E.ECX;\r | |
1218 | ThunkRegSet.E.EAX = Regs->E.EAX;\r | |
1219 | ThunkRegSet.E.DS = Regs->E.DS;\r | |
1220 | ThunkRegSet.E.ES = Regs->E.ES;\r | |
1221 | \r | |
1222 | CopyMem (&(ThunkRegSet.E.EFLAGS), &(Regs->E.EFlags), sizeof (UINT32));\r | |
1223 | \r | |
1224 | //\r | |
1225 | // The call to Legacy16 is a critical section to EFI\r | |
1226 | //\r | |
1227 | Eflags = AsmReadEflags ();\r | |
1228 | if ((Eflags | EFI_CPU_EFLAGS_IF) != 0) {\r | |
1229 | DisableInterrupts ();\r | |
1230 | }\r | |
1231 | \r | |
1232 | //\r | |
1233 | // Set Legacy16 state. 0x08, 0x70 is legacy 8259 vector bases.\r | |
1234 | //\r | |
1235 | Status = gLegacy8259->SetMode (gLegacy8259, Efi8259LegacyMode, NULL, NULL);\r | |
1236 | ASSERT_EFI_ERROR (Status);\r | |
1237 | \r | |
1238 | Stack16 = (UINT16 *)((UINT8 *) mThunkContext.RealModeBuffer + mThunkContext.RealModeBufferSize - sizeof (UINT16));\r | |
1239 | Stack16 -= sizeof (ThunkRegSet.E.EFLAGS) / sizeof (UINT16);\r | |
1240 | CopyMem (Stack16, &ThunkRegSet.E.EFLAGS, sizeof (ThunkRegSet.E.EFLAGS));\r | |
1241 | \r | |
1242 | ThunkRegSet.E.SS = (UINT16) (((UINTN) Stack16 >> 16) << 12);\r | |
1243 | ThunkRegSet.E.ESP = (UINT16) (UINTN) Stack16;\r | |
1244 | ThunkRegSet.E.Eip = (UINT16)((UINT32 *)NULL)[BiosInt];\r | |
1245 | ThunkRegSet.E.CS = (UINT16)(((UINT32 *)NULL)[BiosInt] >> 16);\r | |
1246 | mThunkContext.RealModeState = &ThunkRegSet;\r | |
1247 | AsmThunk16 (&mThunkContext);\r | |
1248 | \r | |
1249 | //\r | |
1250 | // Restore protected mode interrupt state\r | |
1251 | //\r | |
1252 | Status = gLegacy8259->SetMode (gLegacy8259, Efi8259ProtectedMode, NULL, NULL);\r | |
1253 | ASSERT_EFI_ERROR (Status);\r | |
1254 | \r | |
1255 | //\r | |
1256 | // End critical section\r | |
1257 | //\r | |
1258 | if ((Eflags | EFI_CPU_EFLAGS_IF) != 0) {\r | |
1259 | EnableInterrupts ();\r | |
1260 | }\r | |
1261 | \r | |
1262 | Regs->E.EDI = ThunkRegSet.E.EDI; \r | |
1263 | Regs->E.ESI = ThunkRegSet.E.ESI; \r | |
1264 | Regs->E.EBP = ThunkRegSet.E.EBP; \r | |
1265 | Regs->E.EBX = ThunkRegSet.E.EBX; \r | |
1266 | Regs->E.EDX = ThunkRegSet.E.EDX; \r | |
1267 | Regs->E.ECX = ThunkRegSet.E.ECX; \r | |
1268 | Regs->E.EAX = ThunkRegSet.E.EAX;\r | |
1269 | Regs->E.SS = ThunkRegSet.E.SS;\r | |
1270 | Regs->E.CS = ThunkRegSet.E.CS; \r | |
1271 | Regs->E.DS = ThunkRegSet.E.DS; \r | |
1272 | Regs->E.ES = ThunkRegSet.E.ES;\r | |
1273 | \r | |
1274 | CopyMem (&(Regs->E.EFlags), &(ThunkRegSet.E.EFLAGS), sizeof (UINT32));\r | |
1275 | \r | |
1276 | Ret = (BOOLEAN) (Regs->E.EFlags.CF == 1);\r | |
1277 | \r | |
1278 | return Ret;\r | |
1279 | }\r |