Commit | Line | Data |
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8f07f895 | 1 | /** @file\r |
e3644786 | 2 | x64 CPU Exception Handler.\r |
8f07f895 | 3 | \r |
0d25074c | 4 | Copyright (c) 2012 - 2019, Intel Corporation. All rights reserved.<BR>\r |
0acd8697 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
8f07f895 | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "CpuExceptionCommon.h"\r | |
10 | \r | |
11 | /**\r | |
e41aad15 JF |
12 | Return address map of exception handler template so that C code can generate\r |
13 | exception tables.\r | |
8f07f895 | 14 | \r |
e41aad15 JF |
15 | @param IdtEntry Pointer to IDT entry to be updated.\r |
16 | @param InterruptHandler IDT handler value.\r | |
8f07f895 | 17 | **/\r |
18 | VOID\r | |
e41aad15 JF |
19 | ArchUpdateIdtEntry (\r |
20 | IN IA32_IDT_GATE_DESCRIPTOR *IdtEntry,\r | |
21 | IN UINTN InterruptHandler\r | |
8f07f895 | 22 | )\r |
23 | {\r | |
e41aad15 JF |
24 | IdtEntry->Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;\r |
25 | IdtEntry->Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);\r | |
dd563742 | 26 | IdtEntry->Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);\r |
e41aad15 JF |
27 | IdtEntry->Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;\r |
28 | }\r | |
29 | \r | |
30 | /**\r | |
31 | Read IDT handler value from IDT entry.\r | |
32 | \r | |
33 | @param IdtEntry Pointer to IDT entry to be read.\r | |
34 | \r | |
35 | **/\r | |
36 | UINTN\r | |
37 | ArchGetIdtHandler (\r | |
38 | IN IA32_IDT_GATE_DESCRIPTOR *IdtEntry\r | |
39 | )\r | |
40 | {\r | |
41 | return IdtEntry->Bits.OffsetLow + (((UINTN) IdtEntry->Bits.OffsetHigh) << 16) +\r | |
42 | (((UINTN) IdtEntry->Bits.OffsetUpper) << 32);\r | |
43 | }\r | |
8f07f895 | 44 | \r |
e41aad15 JF |
45 | /**\r |
46 | Save CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r | |
47 | \r | |
81b21fc2 JF |
48 | @param[in] ExceptionType Exception type.\r |
49 | @param[in] SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
50 | @param[in] ExceptionHandlerData Pointer to exception handler data.\r | |
e41aad15 JF |
51 | **/\r |
52 | VOID\r | |
53 | ArchSaveExceptionContext (\r | |
81b21fc2 JF |
54 | IN UINTN ExceptionType,\r |
55 | IN EFI_SYSTEM_CONTEXT SystemContext,\r | |
56 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
e41aad15 JF |
57 | )\r |
58 | {\r | |
59 | IA32_EFLAGS32 Eflags;\r | |
81b21fc2 JF |
60 | RESERVED_VECTORS_DATA *ReservedVectors;\r |
61 | \r | |
62 | ReservedVectors = ExceptionHandlerData->ReservedVectors;\r | |
8f07f895 | 63 | //\r |
87a9dd0d RN |
64 | // Save Exception context in global variable in first entry of the exception handler.\r |
65 | // So when original exception handler returns to the new exception handler (second entry),\r | |
66 | // the Eflags/Cs/Eip/ExceptionData can be used.\r | |
8f07f895 | 67 | //\r |
81b21fc2 JF |
68 | ReservedVectors[ExceptionType].OldSs = SystemContext.SystemContextX64->Ss;\r |
69 | ReservedVectors[ExceptionType].OldSp = SystemContext.SystemContextX64->Rsp;\r | |
70 | ReservedVectors[ExceptionType].OldFlags = SystemContext.SystemContextX64->Rflags;\r | |
71 | ReservedVectors[ExceptionType].OldCs = SystemContext.SystemContextX64->Cs;\r | |
72 | ReservedVectors[ExceptionType].OldIp = SystemContext.SystemContextX64->Rip;\r | |
73 | ReservedVectors[ExceptionType].ExceptionData = SystemContext.SystemContextX64->ExceptionData;\r | |
8f07f895 | 74 | //\r |
e41aad15 | 75 | // Clear IF flag to avoid old IDT handler enable interrupt by IRET\r |
8f07f895 | 76 | //\r |
e41aad15 | 77 | Eflags.UintN = SystemContext.SystemContextX64->Rflags;\r |
dd563742 | 78 | Eflags.Bits.IF = 0;\r |
e41aad15 JF |
79 | SystemContext.SystemContextX64->Rflags = Eflags.UintN;\r |
80 | //\r | |
87a9dd0d | 81 | // Modify the EIP in stack, then old IDT handler will return to HookAfterStubBegin.\r |
e41aad15 | 82 | //\r |
81b21fc2 | 83 | SystemContext.SystemContextX64->Rip = (UINTN) ReservedVectors[ExceptionType].HookAfterStubHeaderCode;\r |
8f07f895 | 84 | }\r |
85 | \r | |
86 | /**\r | |
e41aad15 | 87 | Restore CPU exception context when handling EFI_VECTOR_HANDOFF_HOOK_AFTER case.\r |
8f07f895 | 88 | \r |
368c54e7 JF |
89 | @param[in] ExceptionType Exception type.\r |
90 | @param[in] SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
91 | @param[in] ExceptionHandlerData Pointer to exception handler data.\r | |
8f07f895 | 92 | **/\r |
93 | VOID\r | |
e41aad15 | 94 | ArchRestoreExceptionContext (\r |
368c54e7 JF |
95 | IN UINTN ExceptionType,\r |
96 | IN EFI_SYSTEM_CONTEXT SystemContext,\r | |
97 | IN EXCEPTION_HANDLER_DATA *ExceptionHandlerData\r | |
e41aad15 JF |
98 | )\r |
99 | {\r | |
368c54e7 JF |
100 | RESERVED_VECTORS_DATA *ReservedVectors;\r |
101 | \r | |
102 | ReservedVectors = ExceptionHandlerData->ReservedVectors;\r | |
103 | SystemContext.SystemContextX64->Ss = ReservedVectors[ExceptionType].OldSs;\r | |
104 | SystemContext.SystemContextX64->Rsp = ReservedVectors[ExceptionType].OldSp;\r | |
105 | SystemContext.SystemContextX64->Rflags = ReservedVectors[ExceptionType].OldFlags;\r | |
106 | SystemContext.SystemContextX64->Cs = ReservedVectors[ExceptionType].OldCs;\r | |
107 | SystemContext.SystemContextX64->Rip = ReservedVectors[ExceptionType].OldIp;\r | |
108 | SystemContext.SystemContextX64->ExceptionData = ReservedVectors[ExceptionType].ExceptionData;\r | |
e41aad15 JF |
109 | }\r |
110 | \r | |
0ff5aa9c JW |
111 | /**\r |
112 | Setup separate stack for given exceptions.\r | |
113 | \r | |
114 | @param[in] StackSwitchData Pointer to data required for setuping up\r | |
115 | stack switch.\r | |
116 | \r | |
117 | @retval EFI_SUCCESS The exceptions have been successfully\r | |
118 | initialized with new stack.\r | |
119 | @retval EFI_INVALID_PARAMETER StackSwitchData contains invalid content.\r | |
120 | \r | |
121 | **/\r | |
122 | EFI_STATUS\r | |
7c4207e9 | 123 | ArchSetupExceptionStack (\r |
0ff5aa9c JW |
124 | IN CPU_EXCEPTION_INIT_DATA *StackSwitchData\r |
125 | )\r | |
126 | {\r | |
127 | IA32_DESCRIPTOR Gdtr;\r | |
128 | IA32_DESCRIPTOR Idtr;\r | |
129 | IA32_IDT_GATE_DESCRIPTOR *IdtTable;\r | |
130 | IA32_TSS_DESCRIPTOR *TssDesc;\r | |
131 | IA32_TASK_STATE_SEGMENT *Tss;\r | |
132 | UINTN StackTop;\r | |
133 | UINTN Index;\r | |
134 | UINTN Vector;\r | |
135 | UINTN TssBase;\r | |
136 | UINTN GdtSize;\r | |
137 | \r | |
138 | if (StackSwitchData == NULL ||\r | |
139 | StackSwitchData->Ia32.Revision != CPU_EXCEPTION_INIT_DATA_REV ||\r | |
140 | StackSwitchData->X64.KnownGoodStackTop == 0 ||\r | |
141 | StackSwitchData->X64.KnownGoodStackSize == 0 ||\r | |
142 | StackSwitchData->X64.StackSwitchExceptions == NULL ||\r | |
143 | StackSwitchData->X64.StackSwitchExceptionNumber == 0 ||\r | |
144 | StackSwitchData->X64.StackSwitchExceptionNumber > CPU_EXCEPTION_NUM ||\r | |
145 | StackSwitchData->X64.GdtTable == NULL ||\r | |
146 | StackSwitchData->X64.IdtTable == NULL ||\r | |
147 | StackSwitchData->X64.ExceptionTssDesc == NULL ||\r | |
148 | StackSwitchData->X64.ExceptionTss == NULL) {\r | |
149 | return EFI_INVALID_PARAMETER;\r | |
150 | }\r | |
151 | \r | |
152 | //\r | |
153 | // The caller is responsible for that the GDT table, no matter the existing\r | |
154 | // one or newly allocated, has enough space to hold descriptors for exception\r | |
155 | // task-state segments.\r | |
156 | //\r | |
157 | if (((UINTN)StackSwitchData->X64.GdtTable & (IA32_GDT_ALIGNMENT - 1)) != 0) {\r | |
158 | return EFI_INVALID_PARAMETER;\r | |
159 | }\r | |
160 | \r | |
161 | if ((UINTN)StackSwitchData->X64.ExceptionTssDesc < (UINTN)(StackSwitchData->X64.GdtTable)) {\r | |
162 | return EFI_INVALID_PARAMETER;\r | |
163 | }\r | |
164 | \r | |
165 | if (((UINTN)StackSwitchData->X64.ExceptionTssDesc + StackSwitchData->X64.ExceptionTssDescSize) >\r | |
166 | ((UINTN)(StackSwitchData->X64.GdtTable) + StackSwitchData->X64.GdtTableSize)) {\r | |
167 | return EFI_INVALID_PARAMETER;\r | |
168 | }\r | |
169 | \r | |
170 | //\r | |
171 | // One task gate descriptor and one task-state segment are needed.\r | |
172 | //\r | |
173 | if (StackSwitchData->X64.ExceptionTssDescSize < sizeof (IA32_TSS_DESCRIPTOR)) {\r | |
174 | return EFI_INVALID_PARAMETER;\r | |
175 | }\r | |
176 | if (StackSwitchData->X64.ExceptionTssSize < sizeof (IA32_TASK_STATE_SEGMENT)) {\r | |
177 | return EFI_INVALID_PARAMETER;\r | |
178 | }\r | |
179 | \r | |
180 | //\r | |
181 | // Interrupt stack table supports only 7 vectors.\r | |
182 | //\r | |
183 | TssDesc = StackSwitchData->X64.ExceptionTssDesc;\r | |
184 | Tss = StackSwitchData->X64.ExceptionTss;\r | |
d69ba6a7 | 185 | if (StackSwitchData->X64.StackSwitchExceptionNumber > ARRAY_SIZE (Tss->IST)) {\r |
0ff5aa9c JW |
186 | return EFI_INVALID_PARAMETER;\r |
187 | }\r | |
188 | \r | |
189 | //\r | |
190 | // Initialize new GDT table and/or IDT table, if any\r | |
191 | //\r | |
192 | AsmReadIdtr (&Idtr);\r | |
193 | AsmReadGdtr (&Gdtr);\r | |
194 | \r | |
195 | GdtSize = (UINTN)TssDesc + sizeof (IA32_TSS_DESCRIPTOR) -\r | |
196 | (UINTN)(StackSwitchData->X64.GdtTable);\r | |
197 | if ((UINTN)StackSwitchData->X64.GdtTable != Gdtr.Base) {\r | |
198 | CopyMem (StackSwitchData->X64.GdtTable, (VOID *)Gdtr.Base, Gdtr.Limit + 1);\r | |
199 | Gdtr.Base = (UINTN)StackSwitchData->X64.GdtTable;\r | |
200 | Gdtr.Limit = (UINT16)GdtSize - 1;\r | |
201 | }\r | |
202 | \r | |
203 | if ((UINTN)StackSwitchData->X64.IdtTable != Idtr.Base) {\r | |
204 | Idtr.Base = (UINTN)StackSwitchData->X64.IdtTable;\r | |
205 | }\r | |
206 | if (StackSwitchData->X64.IdtTableSize > 0) {\r | |
207 | Idtr.Limit = (UINT16)(StackSwitchData->X64.IdtTableSize - 1);\r | |
208 | }\r | |
209 | \r | |
210 | //\r | |
211 | // Fixup current task descriptor. Task-state segment for current task will\r | |
212 | // be filled by processor during task switching.\r | |
213 | //\r | |
214 | TssBase = (UINTN)Tss;\r | |
215 | \r | |
eae7b476 JW |
216 | TssDesc->Uint128.Uint64 = 0;\r |
217 | TssDesc->Uint128.Uint64_1= 0;\r | |
0ff5aa9c JW |
218 | TssDesc->Bits.LimitLow = sizeof(IA32_TASK_STATE_SEGMENT) - 1;\r |
219 | TssDesc->Bits.BaseLow = (UINT16)TssBase;\r | |
220 | TssDesc->Bits.BaseMidl = (UINT8)(TssBase >> 16);\r | |
221 | TssDesc->Bits.Type = IA32_GDT_TYPE_TSS;\r | |
d69ba6a7 | 222 | TssDesc->Bits.P = 1;\r |
0ff5aa9c JW |
223 | TssDesc->Bits.LimitHigh = 0;\r |
224 | TssDesc->Bits.BaseMidh = (UINT8)(TssBase >> 24);\r | |
225 | TssDesc->Bits.BaseHigh = (UINT32)(TssBase >> 32);\r | |
226 | \r | |
227 | //\r | |
228 | // Fixup exception task descriptor and task-state segment\r | |
229 | //\r | |
eae7b476 | 230 | ZeroMem (Tss, sizeof (*Tss));\r |
0ff5aa9c JW |
231 | StackTop = StackSwitchData->X64.KnownGoodStackTop - CPU_STACK_ALIGNMENT;\r |
232 | StackTop = (UINTN)ALIGN_POINTER (StackTop, CPU_STACK_ALIGNMENT);\r | |
233 | IdtTable = StackSwitchData->X64.IdtTable;\r | |
234 | for (Index = 0; Index < StackSwitchData->X64.StackSwitchExceptionNumber; ++Index) {\r | |
235 | //\r | |
236 | // Fixup IST\r | |
237 | //\r | |
d69ba6a7 | 238 | Tss->IST[Index] = StackTop;\r |
0ff5aa9c JW |
239 | StackTop -= StackSwitchData->X64.KnownGoodStackSize;\r |
240 | \r | |
241 | //\r | |
242 | // Set the IST field to enable corresponding IST\r | |
243 | //\r | |
244 | Vector = StackSwitchData->X64.StackSwitchExceptions[Index];\r | |
245 | if (Vector >= CPU_EXCEPTION_NUM ||\r | |
246 | Vector >= (Idtr.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR)) {\r | |
247 | continue;\r | |
248 | }\r | |
249 | IdtTable[Vector].Bits.Reserved_0 = (UINT8)(Index + 1);\r | |
250 | }\r | |
251 | \r | |
252 | //\r | |
253 | // Publish GDT\r | |
254 | //\r | |
255 | AsmWriteGdtr (&Gdtr);\r | |
256 | \r | |
257 | //\r | |
258 | // Load current task\r | |
259 | //\r | |
260 | AsmWriteTr ((UINT16)((UINTN)StackSwitchData->X64.ExceptionTssDesc - Gdtr.Base));\r | |
261 | \r | |
262 | //\r | |
263 | // Publish IDT\r | |
264 | //\r | |
265 | AsmWriteIdtr (&Idtr);\r | |
266 | \r | |
267 | return EFI_SUCCESS;\r | |
268 | }\r | |
269 | \r | |
e41aad15 | 270 | /**\r |
3f25e6ea | 271 | Display CPU information.\r |
e41aad15 JF |
272 | \r |
273 | @param ExceptionType Exception type.\r | |
274 | @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
275 | **/\r | |
276 | VOID\r | |
1b2f7b3e JF |
277 | EFIAPI\r |
278 | DumpCpuContext (\r | |
e41aad15 | 279 | IN EFI_EXCEPTION_TYPE ExceptionType,\r |
8f07f895 | 280 | IN EFI_SYSTEM_CONTEXT SystemContext\r |
281 | )\r | |
282 | {\r | |
8f07f895 | 283 | InternalPrintMessage (\r |
a51ee144 | 284 | "!!!! X64 Exception Type - %02x(%a) CPU Apic ID - %08x !!!!\n",\r |
8f07f895 | 285 | ExceptionType,\r |
a51ee144 | 286 | GetExceptionNameStr (ExceptionType),\r |
8f07f895 | 287 | GetApicId ()\r |
288 | );\r | |
1b2f7b3e JF |
289 | if ((mErrorCodeFlag & (1 << ExceptionType)) != 0) {\r |
290 | InternalPrintMessage (\r | |
291 | "ExceptionData - %016lx",\r | |
292 | SystemContext.SystemContextX64->ExceptionData\r | |
293 | );\r | |
294 | if (ExceptionType == EXCEPT_IA32_PAGE_FAULT) {\r | |
295 | InternalPrintMessage (\r | |
0d25074c | 296 | " I:%x R:%x U:%x W:%x P:%x PK:%x SS:%x SGX:%x",\r |
1b2f7b3e JF |
297 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_ID) != 0,\r |
298 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_RSVD) != 0,\r | |
299 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_US) != 0,\r | |
300 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_WR) != 0,\r | |
301 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_P) != 0,\r | |
302 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_PK) != 0,\r | |
0d25074c | 303 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_SS) != 0,\r |
1b2f7b3e JF |
304 | (SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_SGX) != 0\r |
305 | );\r | |
306 | }\r | |
307 | InternalPrintMessage ("\n");\r | |
308 | }\r | |
8f07f895 | 309 | InternalPrintMessage (\r |
310 | "RIP - %016lx, CS - %016lx, RFLAGS - %016lx\n",\r | |
311 | SystemContext.SystemContextX64->Rip,\r | |
312 | SystemContext.SystemContextX64->Cs,\r | |
313 | SystemContext.SystemContextX64->Rflags\r | |
314 | );\r | |
8f07f895 | 315 | InternalPrintMessage (\r |
316 | "RAX - %016lx, RCX - %016lx, RDX - %016lx\n",\r | |
317 | SystemContext.SystemContextX64->Rax,\r | |
318 | SystemContext.SystemContextX64->Rcx,\r | |
319 | SystemContext.SystemContextX64->Rdx\r | |
320 | );\r | |
321 | InternalPrintMessage (\r | |
322 | "RBX - %016lx, RSP - %016lx, RBP - %016lx\n",\r | |
323 | SystemContext.SystemContextX64->Rbx,\r | |
324 | SystemContext.SystemContextX64->Rsp,\r | |
325 | SystemContext.SystemContextX64->Rbp\r | |
326 | );\r | |
327 | InternalPrintMessage (\r | |
328 | "RSI - %016lx, RDI - %016lx\n",\r | |
329 | SystemContext.SystemContextX64->Rsi,\r | |
330 | SystemContext.SystemContextX64->Rdi\r | |
331 | );\r | |
332 | InternalPrintMessage (\r | |
333 | "R8 - %016lx, R9 - %016lx, R10 - %016lx\n",\r | |
334 | SystemContext.SystemContextX64->R8,\r | |
335 | SystemContext.SystemContextX64->R9,\r | |
336 | SystemContext.SystemContextX64->R10\r | |
337 | );\r | |
338 | InternalPrintMessage (\r | |
339 | "R11 - %016lx, R12 - %016lx, R13 - %016lx\n",\r | |
340 | SystemContext.SystemContextX64->R11,\r | |
341 | SystemContext.SystemContextX64->R12,\r | |
342 | SystemContext.SystemContextX64->R13\r | |
343 | );\r | |
344 | InternalPrintMessage (\r | |
345 | "R14 - %016lx, R15 - %016lx\n",\r | |
346 | SystemContext.SystemContextX64->R14,\r | |
347 | SystemContext.SystemContextX64->R15\r | |
348 | );\r | |
349 | InternalPrintMessage (\r | |
350 | "DS - %016lx, ES - %016lx, FS - %016lx\n",\r | |
351 | SystemContext.SystemContextX64->Ds,\r | |
352 | SystemContext.SystemContextX64->Es,\r | |
353 | SystemContext.SystemContextX64->Fs\r | |
354 | );\r | |
355 | InternalPrintMessage (\r | |
356 | "GS - %016lx, SS - %016lx\n",\r | |
357 | SystemContext.SystemContextX64->Gs,\r | |
358 | SystemContext.SystemContextX64->Ss\r | |
359 | );\r | |
360 | InternalPrintMessage (\r | |
361 | "CR0 - %016lx, CR2 - %016lx, CR3 - %016lx\n",\r | |
362 | SystemContext.SystemContextX64->Cr0,\r | |
363 | SystemContext.SystemContextX64->Cr2,\r | |
364 | SystemContext.SystemContextX64->Cr3\r | |
365 | );\r | |
366 | InternalPrintMessage (\r | |
367 | "CR4 - %016lx, CR8 - %016lx\n",\r | |
368 | SystemContext.SystemContextX64->Cr4,\r | |
369 | SystemContext.SystemContextX64->Cr8\r | |
370 | );\r | |
371 | InternalPrintMessage (\r | |
372 | "DR0 - %016lx, DR1 - %016lx, DR2 - %016lx\n",\r | |
373 | SystemContext.SystemContextX64->Dr0,\r | |
374 | SystemContext.SystemContextX64->Dr1,\r | |
375 | SystemContext.SystemContextX64->Dr2\r | |
376 | );\r | |
377 | InternalPrintMessage (\r | |
378 | "DR3 - %016lx, DR6 - %016lx, DR7 - %016lx\n",\r | |
379 | SystemContext.SystemContextX64->Dr3,\r | |
380 | SystemContext.SystemContextX64->Dr6,\r | |
381 | SystemContext.SystemContextX64->Dr7\r | |
382 | );\r | |
383 | InternalPrintMessage (\r | |
384 | "GDTR - %016lx %016lx, LDTR - %016lx\n",\r | |
385 | SystemContext.SystemContextX64->Gdtr[0],\r | |
386 | SystemContext.SystemContextX64->Gdtr[1],\r | |
387 | SystemContext.SystemContextX64->Ldtr\r | |
388 | );\r | |
389 | InternalPrintMessage (\r | |
390 | "IDTR - %016lx %016lx, TR - %016lx\n",\r | |
391 | SystemContext.SystemContextX64->Idtr[0],\r | |
392 | SystemContext.SystemContextX64->Idtr[1],\r | |
393 | SystemContext.SystemContextX64->Tr\r | |
394 | );\r | |
dd563742 | 395 | InternalPrintMessage (\r |
8f07f895 | 396 | "FXSAVE_STATE - %016lx\n",\r |
397 | &SystemContext.SystemContextX64->FxSaveState\r | |
398 | );\r | |
1b2f7b3e | 399 | }\r |
8f07f895 | 400 | \r |
1b2f7b3e JF |
401 | /**\r |
402 | Display CPU information.\r | |
403 | \r | |
404 | @param ExceptionType Exception type.\r | |
405 | @param SystemContext Pointer to EFI_SYSTEM_CONTEXT.\r | |
406 | **/\r | |
407 | VOID\r | |
408 | DumpImageAndCpuContent (\r | |
409 | IN EFI_EXCEPTION_TYPE ExceptionType,\r | |
410 | IN EFI_SYSTEM_CONTEXT SystemContext\r | |
411 | )\r | |
412 | {\r | |
413 | DumpCpuContext (ExceptionType, SystemContext);\r | |
8f07f895 | 414 | //\r |
1b2f7b3e | 415 | // Dump module image base and module entry point by RIP\r |
8f07f895 | 416 | //\r |
bb207f6c SZ |
417 | if ((ExceptionType == EXCEPT_IA32_PAGE_FAULT) &&\r |
418 | ((SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_ID) != 0)) {\r | |
419 | //\r | |
420 | // The RIP in SystemContext could not be used\r | |
421 | // if it is page fault with I/D set.\r | |
422 | //\r | |
423 | DumpModuleImageInfo ((*(UINTN *)(UINTN)SystemContext.SystemContextX64->Rsp));\r | |
424 | } else {\r | |
425 | DumpModuleImageInfo (SystemContext.SystemContextX64->Rip);\r | |
426 | }\r | |
8f07f895 | 427 | }\r |