VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR3/VMMGuruMeditation.cpp@ 73471

Last change on this file since 73471 was 73471, checked in by vboxsync, 6 years ago

VMM,DBGF: Improved unwinding of ring-0 assertion stacks, making the new unwind info stuff deal correctly with ring-0 pointers and such. bugref:3897
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1/* $Id: VMMGuruMeditation.cpp 73471 2018-08-03 12:11:07Z vboxsync $ */
2/** @file
3 * VMM - The Virtual Machine Monitor, Guru Meditation Code.
4 */
5
6/*
7 * Copyright (C) 2006-2017 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#define LOG_GROUP LOG_GROUP_VMM
23#include <VBox/vmm/vmm.h>
24#include <VBox/vmm/pdmapi.h>
25#include <VBox/vmm/pdmcritsect.h>
26#include <VBox/vmm/trpm.h>
27#include <VBox/vmm/dbgf.h>
28#include "VMMInternal.h"
29#include <VBox/vmm/vm.h>
30#include <VBox/vmm/mm.h>
31#include <VBox/vmm/iom.h>
32#include <VBox/vmm/em.h>
33
34#include <VBox/err.h>
35#include <VBox/param.h>
36#include <VBox/version.h>
37#include <VBox/vmm/hm.h>
38#include <iprt/assert.h>
39#include <iprt/dbg.h>
40#include <iprt/time.h>
41#include <iprt/stream.h>
42#include <iprt/string.h>
43#include <iprt/stdarg.h>
44
45
46/*********************************************************************************************************************************
47* Structures and Typedefs *
48*********************************************************************************************************************************/
49/**
50 * Structure to pass to DBGFR3Info() and for doing all other
51 * output during fatal dump.
52 */
53typedef struct VMMR3FATALDUMPINFOHLP
54{
55 /** The helper core. */
56 DBGFINFOHLP Core;
57 /** The release logger instance. */
58 PRTLOGGER pRelLogger;
59 /** The saved release logger flags. */
60 uint32_t fRelLoggerFlags;
61 /** The logger instance. */
62 PRTLOGGER pLogger;
63 /** The saved logger flags. */
64 uint32_t fLoggerFlags;
65 /** The saved logger destination flags. */
66 uint32_t fLoggerDestFlags;
67 /** Whether to output to stderr or not. */
68 bool fStdErr;
69 /** Whether we're still recording the summary or not. */
70 bool fRecSummary;
71 /** Buffer for the summary. */
72 char szSummary[4096 - 2];
73 /** The current summary offset. */
74 size_t offSummary;
75 /** Standard error buffer. */
76 char achStdErrBuf[4096 - 8];
77 /** Standard error buffer offset. */
78 size_t offStdErrBuf;
79} VMMR3FATALDUMPINFOHLP, *PVMMR3FATALDUMPINFOHLP;
80/** Pointer to a VMMR3FATALDUMPINFOHLP structure. */
81typedef const VMMR3FATALDUMPINFOHLP *PCVMMR3FATALDUMPINFOHLP;
82
83
84/**
85 * Flushes the content of achStdErrBuf, setting offStdErrBuf to zero.
86 *
87 * @param pHlp The instance to flush.
88 */
89static void vmmR3FatalDumpInfoHlpFlushStdErr(PVMMR3FATALDUMPINFOHLP pHlp)
90{
91 size_t cch = pHlp->offStdErrBuf;
92 if (cch)
93 {
94 RTStrmWrite(g_pStdErr, pHlp->achStdErrBuf, cch);
95 pHlp->offStdErrBuf = 0;
96 }
97}
98
99/**
100 * @callback_method_impl{FNRTSTROUTPUT, For buffering stderr output.}
101 */
102static DECLCALLBACK(size_t) vmmR3FatalDumpInfoHlp_BufferedStdErrOutput(void *pvArg, const char *pachChars, size_t cbChars)
103{
104 PVMMR3FATALDUMPINFOHLP pHlp = (PVMMR3FATALDUMPINFOHLP)pvArg;
105 if (cbChars)
106 {
107 size_t offBuf = pHlp->offStdErrBuf;
108 if (cbChars < sizeof(pHlp->achStdErrBuf) - offBuf)
109 { /* likely */ }
110 else
111 {
112 vmmR3FatalDumpInfoHlpFlushStdErr(pHlp);
113 if (cbChars < sizeof(pHlp->achStdErrBuf))
114 offBuf = 0;
115 else
116 {
117 RTStrmWrite(g_pStdErr, pachChars, cbChars);
118 return cbChars;
119 }
120 }
121 memcpy(&pHlp->achStdErrBuf[offBuf], pachChars, cbChars);
122 pHlp->offStdErrBuf = offBuf + cbChars;
123 }
124 return cbChars;
125}
126
127
128/**
129 * Print formatted string.
130 *
131 * @param pHlp Pointer to this structure.
132 * @param pszFormat The format string.
133 * @param ... Arguments.
134 */
135static DECLCALLBACK(void) vmmR3FatalDumpInfoHlp_pfnPrintf(PCDBGFINFOHLP pHlp, const char *pszFormat, ...)
136{
137 va_list args;
138 va_start(args, pszFormat);
139 pHlp->pfnPrintfV(pHlp, pszFormat, args);
140 va_end(args);
141}
142
143/**
144 * Print formatted string.
145 *
146 * @param pHlp Pointer to this structure.
147 * @param pszFormat The format string.
148 * @param args Argument list.
149 */
150static DECLCALLBACK(void) vmmR3FatalDumpInfoHlp_pfnPrintfV(PCDBGFINFOHLP pHlp, const char *pszFormat, va_list args)
151{
152 PVMMR3FATALDUMPINFOHLP pMyHlp = (PVMMR3FATALDUMPINFOHLP)pHlp;
153
154 if (pMyHlp->pRelLogger)
155 {
156 va_list args2;
157 va_copy(args2, args);
158 RTLogLoggerV(pMyHlp->pRelLogger, pszFormat, args2);
159 va_end(args2);
160 }
161 if (pMyHlp->pLogger)
162 {
163 va_list args2;
164 va_copy(args2, args);
165 RTLogLoggerV(pMyHlp->pLogger, pszFormat, args);
166 va_end(args2);
167 }
168 if (pMyHlp->fStdErr)
169 {
170 va_list args2;
171 va_copy(args2, args);
172 RTStrFormatV(vmmR3FatalDumpInfoHlp_BufferedStdErrOutput, pMyHlp, NULL, NULL, pszFormat, args2);
173 //RTStrmPrintfV(g_pStdErr, pszFormat, args2);
174 va_end(args2);
175 }
176 if (pMyHlp->fRecSummary)
177 {
178 size_t cchLeft = sizeof(pMyHlp->szSummary) - pMyHlp->offSummary;
179 if (cchLeft > 1)
180 {
181 va_list args2;
182 va_copy(args2, args);
183 size_t cch = RTStrPrintfV(&pMyHlp->szSummary[pMyHlp->offSummary], cchLeft, pszFormat, args);
184 va_end(args2);
185 Assert(cch <= cchLeft);
186 pMyHlp->offSummary += cch;
187 }
188 }
189}
190
191
192/**
193 * Initializes the fatal dump output helper.
194 *
195 * @param pHlp The structure to initialize.
196 */
197static void vmmR3FatalDumpInfoHlpInit(PVMMR3FATALDUMPINFOHLP pHlp)
198{
199 RT_BZERO(pHlp, sizeof(*pHlp));
200
201 pHlp->Core.pfnPrintf = vmmR3FatalDumpInfoHlp_pfnPrintf;
202 pHlp->Core.pfnPrintfV = vmmR3FatalDumpInfoHlp_pfnPrintfV;
203
204 /*
205 * The loggers.
206 */
207 pHlp->pRelLogger = RTLogRelGetDefaultInstance();
208#ifdef LOG_ENABLED
209 pHlp->pLogger = RTLogDefaultInstance();
210#else
211 if (pHlp->pRelLogger)
212 pHlp->pLogger = RTLogGetDefaultInstance();
213 else
214 pHlp->pLogger = RTLogDefaultInstance();
215#endif
216
217 if (pHlp->pRelLogger)
218 {
219 pHlp->fRelLoggerFlags = pHlp->pRelLogger->fFlags;
220 pHlp->pRelLogger->fFlags &= ~RTLOGFLAGS_DISABLED;
221 pHlp->pRelLogger->fFlags |= RTLOGFLAGS_BUFFERED;
222 }
223
224 if (pHlp->pLogger)
225 {
226 pHlp->fLoggerFlags = pHlp->pLogger->fFlags;
227 pHlp->fLoggerDestFlags = pHlp->pLogger->fDestFlags;
228 pHlp->pLogger->fFlags &= ~RTLOGFLAGS_DISABLED;
229 pHlp->pLogger->fFlags |= RTLOGFLAGS_BUFFERED;
230#ifndef DEBUG_sandervl
231 pHlp->pLogger->fDestFlags |= RTLOGDEST_DEBUGGER;
232#endif
233 }
234
235 /*
236 * Check if we need write to stderr.
237 */
238 pHlp->fStdErr = (!pHlp->pRelLogger || !(pHlp->pRelLogger->fDestFlags & (RTLOGDEST_STDOUT | RTLOGDEST_STDERR)))
239 && (!pHlp->pLogger || !(pHlp->pLogger->fDestFlags & (RTLOGDEST_STDOUT | RTLOGDEST_STDERR)));
240#ifdef DEBUG_sandervl
241 pHlp->fStdErr = false; /* takes too long to display here */
242#endif
243 pHlp->offStdErrBuf = 0;
244
245 /*
246 * Init the summary recording.
247 */
248 pHlp->fRecSummary = true;
249 pHlp->offSummary = 0;
250 pHlp->szSummary[0] = '\0';
251}
252
253
254/**
255 * Deletes the fatal dump output helper.
256 *
257 * @param pHlp The structure to delete.
258 */
259static void vmmR3FatalDumpInfoHlpDelete(PVMMR3FATALDUMPINFOHLP pHlp)
260{
261 if (pHlp->pRelLogger)
262 {
263 RTLogFlush(pHlp->pRelLogger);
264 pHlp->pRelLogger->fFlags = pHlp->fRelLoggerFlags;
265 }
266
267 if (pHlp->pLogger)
268 {
269 RTLogFlush(pHlp->pLogger);
270 pHlp->pLogger->fFlags = pHlp->fLoggerFlags;
271 pHlp->pLogger->fDestFlags = pHlp->fLoggerDestFlags;
272 }
273
274 if (pHlp->fStdErr)
275 vmmR3FatalDumpInfoHlpFlushStdErr(pHlp);
276}
277
278
279/**
280 * Dumps the VM state on a fatal error.
281 *
282 * @param pVM The cross context VM structure.
283 * @param pVCpu The cross context virtual CPU structure.
284 * @param rcErr VBox status code.
285 */
286VMMR3DECL(void) VMMR3FatalDump(PVM pVM, PVMCPU pVCpu, int rcErr)
287{
288 /*
289 * Create our output helper and sync it with the log settings.
290 * This helper will be used for all the output.
291 */
292 VMMR3FATALDUMPINFOHLP Hlp;
293 PCDBGFINFOHLP pHlp = &Hlp.Core;
294 vmmR3FatalDumpInfoHlpInit(&Hlp);
295
296 /* Release owned locks to make sure other VCPUs can continue in case they were waiting for one. */
297 PDMR3CritSectLeaveAll(pVM);
298
299 /*
300 * Header.
301 */
302 pHlp->pfnPrintf(pHlp,
303 "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n"
304 "!!\n"
305 "!! VCPU%u: Guru Meditation %d (%Rrc)\n"
306 "!!\n",
307 pVCpu->idCpu, rcErr, rcErr);
308
309 /*
310 * Continue according to context.
311 */
312 bool fDoneHyper = false;
313 bool fDoneImport = false;
314 switch (rcErr)
315 {
316 /*
317 * Hypervisor errors.
318 */
319 case VERR_VMM_RING0_ASSERTION:
320 case VINF_EM_DBG_HYPER_ASSERTION:
321 case VERR_VMM_RING3_CALL_DISABLED:
322 {
323 const char *pszMsg1 = VMMR3GetRZAssertMsg1(pVM);
324 while (pszMsg1 && *pszMsg1 == '\n')
325 pszMsg1++;
326 const char *pszMsg2 = VMMR3GetRZAssertMsg2(pVM);
327 while (pszMsg2 && *pszMsg2 == '\n')
328 pszMsg2++;
329 pHlp->pfnPrintf(pHlp,
330 "%s"
331 "%s",
332 pszMsg1,
333 pszMsg2);
334 if ( !pszMsg2
335 || !*pszMsg2
336 || strchr(pszMsg2, '\0')[-1] != '\n')
337 pHlp->pfnPrintf(pHlp, "\n");
338 }
339 RT_FALL_THRU();
340 case VERR_TRPM_DONT_PANIC:
341 case VERR_TRPM_PANIC:
342 case VINF_EM_RAW_STALE_SELECTOR:
343 case VINF_EM_RAW_IRET_TRAP:
344 case VINF_EM_DBG_HYPER_BREAKPOINT:
345 case VINF_EM_DBG_HYPER_STEPPED:
346 case VINF_EM_TRIPLE_FAULT:
347 case VERR_VMM_HYPER_CR3_MISMATCH:
348 {
349 /*
350 * Active trap? This is only of partial interest when in hardware
351 * assisted virtualization mode, thus the different messages.
352 */
353 uint32_t uEIP = CPUMGetHyperEIP(pVCpu);
354 TRPMEVENT enmType;
355 uint8_t u8TrapNo = 0xce;
356 RTGCUINT uErrorCode = 0xdeadface;
357 RTGCUINTPTR uCR2 = 0xdeadface;
358 uint8_t cbInstr = UINT8_MAX;
359 int rc2 = TRPMQueryTrapAll(pVCpu, &u8TrapNo, &enmType, &uErrorCode, &uCR2, &cbInstr);
360 if (VM_IS_RAW_MODE_ENABLED(pVM))
361 {
362 if (RT_SUCCESS(rc2))
363 pHlp->pfnPrintf(pHlp,
364 "!! TRAP=%02x ERRCD=%RGv CR2=%RGv EIP=%RX32 Type=%d cbInstr=%02x\n",
365 u8TrapNo, uErrorCode, uCR2, uEIP, enmType, cbInstr);
366 else
367 pHlp->pfnPrintf(pHlp,
368 "!! EIP=%RX32 NOTRAP\n",
369 uEIP);
370 }
371 else if (RT_SUCCESS(rc2))
372 pHlp->pfnPrintf(pHlp,
373 "!! ACTIVE TRAP=%02x ERRCD=%RGv CR2=%RGv PC=%RGr Type=%d cbInstr=%02x (Guest!)\n",
374 u8TrapNo, uErrorCode, uCR2, CPUMGetGuestRIP(pVCpu), enmType, cbInstr);
375
376 /*
377 * Dump the relevant hypervisor registers and stack.
378 */
379 if (!VM_IS_RAW_MODE_ENABLED(pVM))
380 {
381 if ( rcErr == VERR_VMM_RING0_ASSERTION /* fInRing3Call has already been cleared here. */
382 || pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
383 {
384 /* Dump the jmpbuf. */
385 pHlp->pfnPrintf(pHlp,
386 "!!\n"
387 "!! CallRing3JmpBuf:\n"
388 "!!\n");
389 pHlp->pfnPrintf(pHlp,
390 "SavedEsp=%RHv SavedEbp=%RHv SpResume=%RHv SpCheck=%RHv\n",
391 pVCpu->vmm.s.CallRing3JmpBufR0.SavedEsp,
392 pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp,
393 pVCpu->vmm.s.CallRing3JmpBufR0.SpResume,
394 pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck);
395 pHlp->pfnPrintf(pHlp,
396 "pvSavedStack=%RHv cbSavedStack=%#x fInRing3Call=%RTbool\n",
397 pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack,
398 pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack,
399 pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call);
400 pHlp->pfnPrintf(pHlp,
401 "cbUsedMax=%#x cbUsedAvg=%#x cbUsedTotal=%#llx cUsedTotal=%#llx\n",
402 pVCpu->vmm.s.CallRing3JmpBufR0.cbUsedMax,
403 pVCpu->vmm.s.CallRing3JmpBufR0.cbUsedAvg,
404 pVCpu->vmm.s.CallRing3JmpBufR0.cbUsedTotal,
405 pVCpu->vmm.s.CallRing3JmpBufR0.cUsedTotal);
406
407 /* Dump the resume register frame on the stack. */
408 PRTHCUINTPTR pBP;
409#ifdef VMM_R0_SWITCH_STACK
410 pBP = (PRTHCUINTPTR)&pVCpu->vmm.s.pbEMTStackR3[ pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp
411 - MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3)];
412#else
413 pBP = (PRTHCUINTPTR)&pVCpu->vmm.s.pbEMTStackR3[ pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack
414 - pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck
415 + pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp];
416#endif
417#if HC_ARCH_BITS == 32
418 pHlp->pfnPrintf(pHlp,
419 "eax=volatile ebx=%08x ecx=volatile edx=volatile esi=%08x edi=%08x\n"
420 "eip=%08x esp=%08x ebp=%08x efl=%08x\n"
421 ,
422 pBP[-3], pBP[-2], pBP[-1],
423 pBP[1], pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp - 8, pBP[0], pBP[-4]);
424#else
425# ifdef RT_OS_WINDOWS
426 pHlp->pfnPrintf(pHlp,
427 "rax=volatile rbx=%016RX64 rcx=volatile rdx=volatile\n"
428 "rsi=%016RX64 rdi=%016RX64 r8=volatile r9=volatile \n"
429 "r10=volatile r11=volatile r12=%016RX64 r13=%016RX64\n"
430 "r14=%016RX64 r15=%016RX64\n"
431 "rip=%016RX64 rsp=%016RX64 rbp=%016RX64 rfl=%08RX64\n"
432 ,
433 pBP[-7],
434 pBP[-6], pBP[-5],
435 pBP[-4], pBP[-3],
436 pBP[-2], pBP[-1],
437 pBP[1], pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp - 16, pBP[0], pBP[-8]);
438# else
439 pHlp->pfnPrintf(pHlp,
440 "rax=volatile rbx=%016RX64 rcx=volatile rdx=volatile\n"
441 "rsi=volatile rdi=volatile r8=volatile r9=volatile \n"
442 "r10=volatile r11=volatile r12=%016RX64 r13=%016RX64\n"
443 "r14=%016RX64 r15=%016RX64\n"
444 "rip=%016RX64 rsp=%016RX64 rbp=%016RX64 rflags=%08RX64\n"
445 ,
446 pBP[-5],
447 pBP[-4], pBP[-3],
448 pBP[-2], pBP[-1],
449 pBP[1], pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp - 16, pBP[0], pBP[-6]);
450# endif
451#endif
452
453 /* Callstack. */
454 DBGFADDRESS AddrPc, AddrBp, AddrSp;
455 PCDBGFSTACKFRAME pFirstFrame;
456 rc2 = DBGFR3StackWalkBeginEx(pVM->pUVM, pVCpu->idCpu, DBGFCODETYPE_RING0,
457 DBGFR3AddrFromHostR0(&AddrBp, pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp),
458 DBGFR3AddrFromHostR0(&AddrSp, pVCpu->vmm.s.CallRing3JmpBufR0.SpResume),
459 DBGFR3AddrFromHostR0(&AddrPc, pVCpu->vmm.s.CallRing3JmpBufR0.SavedEipForUnwind),
460 RTDBGRETURNTYPE_INVALID, &pFirstFrame);
461 if (RT_SUCCESS(rc2))
462 {
463 pHlp->pfnPrintf(pHlp,
464 "!!\n"
465 "!! Call Stack:\n"
466 "!!\n");
467#if HC_ARCH_BITS == 32
468 pHlp->pfnPrintf(pHlp, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP Symbol [line]\n");
469#else
470 pHlp->pfnPrintf(pHlp, "RBP Ret RBP Ret RIP RIP Symbol [line]\n");
471#endif
472 for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
473 pFrame;
474 pFrame = DBGFR3StackWalkNext(pFrame))
475 {
476#if HC_ARCH_BITS == 32
477 pHlp->pfnPrintf(pHlp,
478 "%RHv %RHv %04RX32:%RHv %RHv %RHv %RHv %RHv",
479 (RTHCUINTPTR)pFrame->AddrFrame.off,
480 (RTHCUINTPTR)pFrame->AddrReturnFrame.off,
481 (RTHCUINTPTR)pFrame->AddrReturnPC.Sel,
482 (RTHCUINTPTR)pFrame->AddrReturnPC.off,
483 pFrame->Args.au32[0],
484 pFrame->Args.au32[1],
485 pFrame->Args.au32[2],
486 pFrame->Args.au32[3]);
487 pHlp->pfnPrintf(pHlp, " %RTsel:%08RHv", pFrame->AddrPC.Sel, pFrame->AddrPC.off);
488#else
489 pHlp->pfnPrintf(pHlp,
490 "%RHv %RHv %RHv %RHv",
491 (RTHCUINTPTR)pFrame->AddrFrame.off,
492 (RTHCUINTPTR)pFrame->AddrReturnFrame.off,
493 (RTHCUINTPTR)pFrame->AddrReturnPC.off,
494 (RTHCUINTPTR)pFrame->AddrPC.off);
495#endif
496 if (pFrame->pSymPC)
497 {
498 RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value;
499 if (offDisp > 0)
500 pHlp->pfnPrintf(pHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
501 else if (offDisp < 0)
502 pHlp->pfnPrintf(pHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
503 else
504 pHlp->pfnPrintf(pHlp, " %s", pFrame->pSymPC->szName);
505 }
506 if (pFrame->pLinePC)
507 pHlp->pfnPrintf(pHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
508 pHlp->pfnPrintf(pHlp, "\n");
509 }
510 DBGFR3StackWalkEnd(pFirstFrame);
511 }
512
513 /* Symbols on the stack. */
514#ifdef VMM_R0_SWITCH_STACK
515 uint32_t const iLast = VMM_STACK_SIZE / sizeof(uintptr_t);
516 uint32_t iAddr = (uint32_t)( pVCpu->vmm.s.CallRing3JmpBufR0.SavedEsp
517 - MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3)) / sizeof(uintptr_t);
518 if (iAddr > iLast)
519 iAddr = 0;
520#else
521 uint32_t const iLast = RT_MIN(pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack, VMM_STACK_SIZE)
522 / sizeof(uintptr_t);
523 uint32_t iAddr = 0;
524#endif
525 pHlp->pfnPrintf(pHlp,
526 "!!\n"
527 "!! Addresses on the stack (iAddr=%#x, iLast=%#x)\n"
528 "!!\n",
529 iAddr, iLast);
530 uintptr_t const *paAddr = (uintptr_t const *)pVCpu->vmm.s.pbEMTStackR3;
531 while (iAddr < iLast)
532 {
533 uintptr_t const uAddr = paAddr[iAddr];
534 if (uAddr > X86_PAGE_SIZE)
535 {
536 DBGFADDRESS Addr;
537 DBGFR3AddrFromFlat(pVM->pUVM, &Addr, uAddr);
538 RTGCINTPTR offDisp = 0;
539 PRTDBGSYMBOL pSym = DBGFR3AsSymbolByAddrA(pVM->pUVM, DBGF_AS_R0, &Addr,
540 RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL | RTDBGSYMADDR_FLAGS_SKIP_ABS_IN_DEFERRED,
541 &offDisp, NULL);
542 RTGCINTPTR offLineDisp;
543 PRTDBGLINE pLine = DBGFR3AsLineByAddrA(pVM->pUVM, DBGF_AS_R0, &Addr, &offLineDisp, NULL);
544 if (pLine || pSym)
545 {
546 pHlp->pfnPrintf(pHlp, "%#06x: %p =>", iAddr * sizeof(uintptr_t), uAddr);
547 if (pSym)
548 pHlp->pfnPrintf(pHlp, " %s + %#x", pSym->szName, (intptr_t)offDisp);
549 if (pLine)
550 pHlp->pfnPrintf(pHlp, " [%s:%u + %#x]\n", pLine->szFilename, pLine->uLineNo, offLineDisp);
551 else
552 pHlp->pfnPrintf(pHlp, "\n");
553 RTDbgSymbolFree(pSym);
554 RTDbgLineFree(pLine);
555 }
556 }
557 iAddr++;
558 }
559
560 /* raw stack */
561 Hlp.fRecSummary = false;
562 pHlp->pfnPrintf(pHlp,
563 "!!\n"
564 "!! Raw stack (mind the direction).\n"
565 "!! pbEMTStackR0=%RHv pbEMTStackBottomR0=%RHv VMM_STACK_SIZE=%#x\n"
566 "!! pbEmtStackR3=%p\n"
567 "!!\n"
568 "%.*Rhxd\n",
569 MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3),
570 MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3) + VMM_STACK_SIZE,
571 VMM_STACK_SIZE,
572 pVCpu->vmm.s.pbEMTStackR3,
573 VMM_STACK_SIZE, pVCpu->vmm.s.pbEMTStackR3);
574 }
575 else
576 {
577 pHlp->pfnPrintf(pHlp,
578 "!! Skipping ring-0 registers and stack, rcErr=%Rrc\n", rcErr);
579 }
580 }
581 else
582 {
583 /*
584 * Try figure out where eip is.
585 */
586 /* core code? */
587 if (uEIP - (RTGCUINTPTR)pVM->vmm.s.pvCoreCodeRC < pVM->vmm.s.cbCoreCode)
588 pHlp->pfnPrintf(pHlp,
589 "!! EIP is in CoreCode, offset %#x\n",
590 uEIP - (RTGCUINTPTR)pVM->vmm.s.pvCoreCodeRC);
591 else
592 { /* ask PDM */ /** @todo ask DBGFR3Sym later? */
593 char szModName[64];
594 RTRCPTR RCPtrMod;
595 char szNearSym1[260];
596 RTRCPTR RCPtrNearSym1;
597 char szNearSym2[260];
598 RTRCPTR RCPtrNearSym2;
599 int rc = PDMR3LdrQueryRCModFromPC(pVM, uEIP,
600 &szModName[0], sizeof(szModName), &RCPtrMod,
601 &szNearSym1[0], sizeof(szNearSym1), &RCPtrNearSym1,
602 &szNearSym2[0], sizeof(szNearSym2), &RCPtrNearSym2);
603 if (RT_SUCCESS(rc))
604 pHlp->pfnPrintf(pHlp,
605 "!! EIP in %s (%RRv) at rva %x near symbols:\n"
606 "!! %RRv rva %RRv off %08x %s\n"
607 "!! %RRv rva %RRv off -%08x %s\n",
608 szModName, RCPtrMod, (unsigned)(uEIP - RCPtrMod),
609 RCPtrNearSym1, RCPtrNearSym1 - RCPtrMod, (unsigned)(uEIP - RCPtrNearSym1), szNearSym1,
610 RCPtrNearSym2, RCPtrNearSym2 - RCPtrMod, (unsigned)(RCPtrNearSym2 - uEIP), szNearSym2);
611 else
612 pHlp->pfnPrintf(pHlp,
613 "!! EIP is not in any code known to VMM!\n");
614 }
615
616 /* Disassemble the instruction. */
617 char szInstr[256];
618 rc2 = DBGFR3DisasInstrEx(pVM->pUVM, pVCpu->idCpu, 0, 0,
619 DBGF_DISAS_FLAGS_CURRENT_HYPER | DBGF_DISAS_FLAGS_DEFAULT_MODE,
620 &szInstr[0], sizeof(szInstr), NULL);
621 if (RT_SUCCESS(rc2))
622 pHlp->pfnPrintf(pHlp,
623 "!! %s\n", szInstr);
624
625 /* Dump the hypervisor cpu state. */
626 pHlp->pfnPrintf(pHlp,
627 "!!\n"
628 "!!\n"
629 "!!\n");
630 rc2 = DBGFR3Info(pVM->pUVM, "cpumhyper", "verbose", pHlp);
631 fDoneHyper = true;
632
633 /* Callstack. */
634 PCDBGFSTACKFRAME pFirstFrame;
635 rc2 = DBGFR3StackWalkBegin(pVM->pUVM, pVCpu->idCpu, DBGFCODETYPE_HYPER, &pFirstFrame);
636 if (RT_SUCCESS(rc2))
637 {
638 pHlp->pfnPrintf(pHlp,
639 "!!\n"
640 "!! Call Stack:\n"
641 "!!\n"
642 "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP Symbol [line]\n");
643 for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
644 pFrame;
645 pFrame = DBGFR3StackWalkNext(pFrame))
646 {
647 pHlp->pfnPrintf(pHlp,
648 "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
649 (uint32_t)pFrame->AddrFrame.off,
650 (uint32_t)pFrame->AddrReturnFrame.off,
651 (uint32_t)pFrame->AddrReturnPC.Sel,
652 (uint32_t)pFrame->AddrReturnPC.off,
653 pFrame->Args.au32[0],
654 pFrame->Args.au32[1],
655 pFrame->Args.au32[2],
656 pFrame->Args.au32[3]);
657 pHlp->pfnPrintf(pHlp, " %RTsel:%08RGv", pFrame->AddrPC.Sel, pFrame->AddrPC.off);
658 if (pFrame->pSymPC)
659 {
660 RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value;
661 if (offDisp > 0)
662 pHlp->pfnPrintf(pHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
663 else if (offDisp < 0)
664 pHlp->pfnPrintf(pHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
665 else
666 pHlp->pfnPrintf(pHlp, " %s", pFrame->pSymPC->szName);
667 }
668 if (pFrame->pLinePC)
669 pHlp->pfnPrintf(pHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
670 pHlp->pfnPrintf(pHlp, "\n");
671 }
672 DBGFR3StackWalkEnd(pFirstFrame);
673 }
674
675 /* raw stack */
676 Hlp.fRecSummary = false;
677 pHlp->pfnPrintf(pHlp,
678 "!!\n"
679 "!! Raw stack (mind the direction). pbEMTStackRC=%RRv pbEMTStackBottomRC=%RRv\n"
680 "!!\n"
681 "%.*Rhxd\n",
682 pVCpu->vmm.s.pbEMTStackRC, pVCpu->vmm.s.pbEMTStackBottomRC,
683 VMM_STACK_SIZE, pVCpu->vmm.s.pbEMTStackR3);
684 } /* !HMIsEnabled */
685 break;
686 }
687
688 case VERR_IEM_INSTR_NOT_IMPLEMENTED:
689 case VERR_IEM_ASPECT_NOT_IMPLEMENTED:
690 case VERR_PATM_IPE_TRAP_IN_PATCH_CODE:
691 case VERR_EM_GUEST_CPU_HANG:
692 {
693 CPUMImportGuestStateOnDemand(pVCpu, CPUMCTX_EXTRN_ABSOLUTELY_ALL);
694 fDoneImport = true;
695
696 DBGFR3Info(pVM->pUVM, "cpumguest", NULL, pHlp);
697 DBGFR3Info(pVM->pUVM, "cpumguestinstr", NULL, pHlp);
698 DBGFR3Info(pVM->pUVM, "cpumguesthwvirt", NULL, pHlp);
699 break;
700 }
701
702 default:
703 {
704 break;
705 }
706
707 } /* switch (rcErr) */
708 Hlp.fRecSummary = false;
709
710
711 /*
712 * Generic info dumper loop.
713 */
714 if (!fDoneImport)
715 CPUMImportGuestStateOnDemand(pVCpu, CPUMCTX_EXTRN_ABSOLUTELY_ALL);
716 static struct
717 {
718 const char *pszInfo;
719 const char *pszArgs;
720 } const aInfo[] =
721 {
722 { "mappings", NULL },
723 { "hma", NULL },
724 { "cpumguest", "verbose" },
725 { "cpumguesthwvirt", "verbose" },
726 { "cpumguestinstr", "verbose" },
727 { "cpumhyper", "verbose" },
728 { "cpumhost", "verbose" },
729 { "mode", "all" },
730 { "cpuid", "verbose" },
731 { "handlers", "phys virt hyper stats" },
732 { "timers", NULL },
733 { "activetimers", NULL },
734 };
735 for (unsigned i = 0; i < RT_ELEMENTS(aInfo); i++)
736 {
737 if (fDoneHyper && !strcmp(aInfo[i].pszInfo, "cpumhyper"))
738 continue;
739 pHlp->pfnPrintf(pHlp,
740 "!!\n"
741 "!! {%s, %s}\n"
742 "!!\n",
743 aInfo[i].pszInfo, aInfo[i].pszArgs);
744 DBGFR3Info(pVM->pUVM, aInfo[i].pszInfo, aInfo[i].pszArgs, pHlp);
745 }
746
747 /* All other info items */
748 DBGFR3InfoMulti(pVM,
749 "*",
750 "mappings|hma|cpum|cpumguest|cpumguesthwvirt|cpumguestinstr|cpumhyper|cpumhost|mode|cpuid"
751 "|pgmpd|pgmcr3|timers|activetimers|handlers|help|exithistory",
752 "!!\n"
753 "!! {%s}\n"
754 "!!\n",
755 pHlp);
756
757
758 /* done */
759 pHlp->pfnPrintf(pHlp,
760 "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
761
762
763 /*
764 * Repeat the summary to stderr so we don't have to scroll half a mile up.
765 */
766 vmmR3FatalDumpInfoHlpFlushStdErr(&Hlp);
767 if (Hlp.szSummary[0])
768 RTStrmPrintf(g_pStdErr,
769 "%s"
770 "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n",
771 Hlp.szSummary);
772
773 /*
774 * Delete the output instance (flushing and restoring of flags).
775 */
776 vmmR3FatalDumpInfoHlpDelete(&Hlp);
777}
778
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