VMMGuruMeditation.cpp@ 90189

Last change on this file since 90189 was 90189, checked in by vboxsync, 4 years ago
VMM: Make the setjmp code a bit stricter with when to resume a call. bugref:10064 ticketref:20090 ticketref:20456
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 28.1 KB

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1	/* $Id: VMMGuruMeditation.cpp 90189 2021-07-14 16:39:09Z vboxsync $ */
2	/** @file
3	* VMM - The Virtual Machine Monitor, Guru Meditation Code.
4	*/
5
6	/*
7	* Copyright (C) 2006-2020 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	*/
53	typedef 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. */
81	typedef 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	*/
89	static 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	*/
102	static 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	*/
135	static 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	*/
150	static 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	*/
197	static 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	pHlp->Core.pfnGetOptError = DBGFR3InfoGenricGetOptError;
204
205	/*
206	* The loggers.
207	*/
208	pHlp->pRelLogger = RTLogRelGetDefaultInstance();
209	#ifdef LOG_ENABLED
210	pHlp->pLogger = RTLogDefaultInstance();
211	#else
212	if (pHlp->pRelLogger)
213	pHlp->pLogger = RTLogGetDefaultInstance();
214	else
215	pHlp->pLogger = RTLogDefaultInstance();
216	#endif
217
218	if (pHlp->pRelLogger)
219	{
220	pHlp->fRelLoggerFlags = pHlp->pRelLogger->fFlags;
221	pHlp->pRelLogger->fFlags &= ~RTLOGFLAGS_DISABLED;
222	pHlp->pRelLogger->fFlags \|= RTLOGFLAGS_BUFFERED;
223	}
224
225	if (pHlp->pLogger)
226	{
227	pHlp->fLoggerFlags = pHlp->pLogger->fFlags;
228	pHlp->fLoggerDestFlags = pHlp->pLogger->fDestFlags;
229	pHlp->pLogger->fFlags &= ~RTLOGFLAGS_DISABLED;
230	pHlp->pLogger->fFlags \|= RTLOGFLAGS_BUFFERED;
231	#ifndef DEBUG_sandervl
232	pHlp->pLogger->fDestFlags \|= RTLOGDEST_DEBUGGER;
233	#endif
234	}
235
236	/*
237	* Check if we need write to stderr.
238	*/
239	pHlp->fStdErr = (!pHlp->pRelLogger \|\| !(pHlp->pRelLogger->fDestFlags & (RTLOGDEST_STDOUT \| RTLOGDEST_STDERR)))
240	&& (!pHlp->pLogger \|\| !(pHlp->pLogger->fDestFlags & (RTLOGDEST_STDOUT \| RTLOGDEST_STDERR)));
241	#ifdef DEBUG_sandervl
242	pHlp->fStdErr = false; /* takes too long to display here */
243	#endif
244	pHlp->offStdErrBuf = 0;
245
246	/*
247	* Init the summary recording.
248	*/
249	pHlp->fRecSummary = true;
250	pHlp->offSummary = 0;
251	pHlp->szSummary[0] = '\0';
252	}
253
254
255	/**
256	* Deletes the fatal dump output helper.
257	*
258	* @param pHlp The structure to delete.
259	*/
260	static void vmmR3FatalDumpInfoHlpDelete(PVMMR3FATALDUMPINFOHLP pHlp)
261	{
262	if (pHlp->pRelLogger)
263	{
264	RTLogFlush(pHlp->pRelLogger);
265	pHlp->pRelLogger->fFlags = pHlp->fRelLoggerFlags;
266	}
267
268	if (pHlp->pLogger)
269	{
270	RTLogFlush(pHlp->pLogger);
271	pHlp->pLogger->fFlags = pHlp->fLoggerFlags;
272	pHlp->pLogger->fDestFlags = pHlp->fLoggerDestFlags;
273	}
274
275	if (pHlp->fStdErr)
276	vmmR3FatalDumpInfoHlpFlushStdErr(pHlp);
277	}
278
279
280	/**
281	* Dumps the VM state on a fatal error.
282	*
283	* @param pVM The cross context VM structure.
284	* @param pVCpu The cross context virtual CPU structure.
285	* @param rcErr VBox status code.
286	*/
287	VMMR3DECL(void) VMMR3FatalDump(PVM pVM, PVMCPU pVCpu, int rcErr)
288	{
289	/*
290	* Create our output helper and sync it with the log settings.
291	* This helper will be used for all the output.
292	*/
293	VMMR3FATALDUMPINFOHLP Hlp;
294	PCDBGFINFOHLP pHlp = &Hlp.Core;
295	vmmR3FatalDumpInfoHlpInit(&Hlp);
296
297	/* Release owned locks to make sure other VCPUs can continue in case they were waiting for one. */
298	PDMR3CritSectLeaveAll(pVM);
299
300	/*
301	* Header.
302	*/
303	pHlp->pfnPrintf(pHlp,
304	"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n"
305	"!!\n"
306	"!! VCPU%u: Guru Meditation %d (%Rrc)\n"
307	"!!\n",
308	pVCpu->idCpu, rcErr, rcErr);
309
310	/*
311	* Continue according to context.
312	*/
313	bool fDoneHyper = false;
314	bool fDoneImport = false;
315	switch (rcErr)
316	{
317	/*
318	* Hypervisor errors.
319	*/
320	case VERR_VMM_RING0_ASSERTION:
321	case VINF_EM_DBG_HYPER_ASSERTION:
322	case VERR_VMM_RING3_CALL_DISABLED:
323	case VERR_VMM_WRONG_HM_VMCPU_STATE:
324	case VERR_VMM_CONTEXT_HOOK_STILL_ENABLED:
325	{
326	const char *pszMsg1 = VMMR3GetRZAssertMsg1(pVM);
327	while (pszMsg1 && *pszMsg1 == '\n')
328	pszMsg1++;
329	const char *pszMsg2 = VMMR3GetRZAssertMsg2(pVM);
330	while (pszMsg2 && *pszMsg2 == '\n')
331	pszMsg2++;
332	pHlp->pfnPrintf(pHlp,
333	"%s"
334	"%s",
335	pszMsg1,
336	pszMsg2);
337	if ( !pszMsg2
338	\|\| !*pszMsg2
339	\|\| strchr(pszMsg2, '\0')[-1] != '\n')
340	pHlp->pfnPrintf(pHlp, "\n");
341	}
342	RT_FALL_THRU();
343	case VERR_TRPM_DONT_PANIC:
344	case VERR_TRPM_PANIC:
345	case VINF_EM_RAW_STALE_SELECTOR:
346	case VINF_EM_RAW_IRET_TRAP:
347	case VINF_EM_DBG_HYPER_BREAKPOINT:
348	case VINF_EM_DBG_HYPER_STEPPED:
349	case VINF_EM_TRIPLE_FAULT:
350	case VERR_VMM_HYPER_CR3_MISMATCH:
351	{
352	/*
353	* Active trap? This is only of partial interest when in hardware
354	* assisted virtualization mode, thus the different messages.
355	*/
356	uint32_t uEIP = 0; //CPUMGetHyperEIP(pVCpu);
357	TRPMEVENT enmType;
358	uint8_t u8TrapNo = 0xce;
359	uint32_t uErrorCode = 0xdeadface;
360	RTGCUINTPTR uCR2 = 0xdeadface;
361	uint8_t cbInstr = UINT8_MAX;
362	bool fIcebp = false;
363	int rc2 = TRPMQueryTrapAll(pVCpu, &u8TrapNo, &enmType, &uErrorCode, &uCR2, &cbInstr, &fIcebp);
364	if (VM_IS_RAW_MODE_ENABLED(pVM))
365	{
366	if (RT_SUCCESS(rc2))
367	pHlp->pfnPrintf(pHlp,
368	"!! TRAP=%02x ERRCD=%RX32 CR2=%RGv EIP=%RX32 Type=%d cbInstr=%02x fIcebp=%RTbool\n",
369	u8TrapNo, uErrorCode, uCR2, uEIP, enmType, cbInstr, fIcebp);
370	else
371	pHlp->pfnPrintf(pHlp,
372	"!! EIP=%RX32 NOTRAP\n",
373	uEIP);
374	}
375	else if (RT_SUCCESS(rc2))
376	pHlp->pfnPrintf(pHlp,
377	"!! ACTIVE TRAP=%02x ERRCD=%RX32 CR2=%RGv PC=%RGr Type=%d cbInstr=%02x fIcebp=%RTbool (Guest!)\n",
378	u8TrapNo, uErrorCode, uCR2, CPUMGetGuestRIP(pVCpu), enmType, cbInstr, fIcebp);
379
380	/*
381	* Dump the relevant hypervisor registers and stack.
382	*/
383	if ( rcErr == VERR_VMM_RING0_ASSERTION /* fInRing3Call has already been cleared here. */
384	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
385	{
386	/* Dump the jmpbuf. */
387	pHlp->pfnPrintf(pHlp,
388	"!!\n"
389	"!! CallRing3JmpBuf:\n"
390	"!!\n");
391	pHlp->pfnPrintf(pHlp,
392	"SavedEsp=%RHv SavedEbp=%RHv SpResume=%RHv SpCheck=%RHv\n",
393	pVCpu->vmm.s.CallRing3JmpBufR0.SavedEsp,
394	pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp,
395	pVCpu->vmm.s.CallRing3JmpBufR0.SpResume,
396	pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck);
397	pHlp->pfnPrintf(pHlp,
398	"pvSavedStack=%RHv cbSavedStack=%#x fInRing3Call=%RTbool\n",
399	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack,
400	pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack,
401	pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call);
402	pHlp->pfnPrintf(pHlp,
403	"cbUsedMax=%#x cbUsedAvg=%#x cbUsedTotal=%#llx cUsedTotal=%#llx\n",
404	pVCpu->vmm.s.CallRing3JmpBufR0.cbUsedMax,
405	pVCpu->vmm.s.CallRing3JmpBufR0.cbUsedAvg,
406	pVCpu->vmm.s.CallRing3JmpBufR0.cbUsedTotal,
407	pVCpu->vmm.s.CallRing3JmpBufR0.cUsedTotal);
408	pHlp->pfnPrintf(pHlp,
409	"pfn=%RHv pvUser1=%RHv pvUser2=%RHv\n",
410	pVCpu->vmm.s.CallRing3JmpBufR0.pfn,
411	pVCpu->vmm.s.CallRing3JmpBufR0.pvUser1,
412	pVCpu->vmm.s.CallRing3JmpBufR0.pvUser2);
413
414	/* Dump the resume register frame on the stack. */
415	PRTHCUINTPTR pBP;
416	#ifdef VMM_R0_SWITCH_STACK
417	pBP = (PRTHCUINTPTR)&pVCpu->vmm.s.pbEMTStackR3[ pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp
418	- MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3)];
419	#else
420	pBP = (PRTHCUINTPTR)&pVCpu->vmm.s.pbEMTStackR3[ pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack
421	- pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck
422	+ pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp];
423	#endif
424	#if HC_ARCH_BITS == 32
425	pHlp->pfnPrintf(pHlp,
426	"eax=volatile ebx=%08x ecx=volatile edx=volatile esi=%08x edi=%08x\n"
427	"eip=%08x esp=%08x ebp=%08x efl=%08x\n"
428	,
429	pBP[-3], pBP[-2], pBP[-1],
430	pBP[1], pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp - 8, pBP[0], pBP[-4]);
431	#else
432	# ifdef RT_OS_WINDOWS
433	pHlp->pfnPrintf(pHlp,
434	"rax=volatile rbx=%016RX64 rcx=volatile rdx=volatile\n"
435	"rsi=%016RX64 rdi=%016RX64 r8=volatile r9=volatile \n"
436	"r10=volatile r11=volatile r12=%016RX64 r13=%016RX64\n"
437	"r14=%016RX64 r15=%016RX64\n"
438	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 rfl=%08RX64\n"
439	,
440	pBP[-7],
441	pBP[-6], pBP[-5],
442	pBP[-4], pBP[-3],
443	pBP[-2], pBP[-1],
444	pBP[1], pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp - 16, pBP[0], pBP[-8]);
445	# else
446	pHlp->pfnPrintf(pHlp,
447	"rax=volatile rbx=%016RX64 rcx=volatile rdx=volatile\n"
448	"rsi=volatile rdi=volatile r8=volatile r9=volatile \n"
449	"r10=volatile r11=volatile r12=%016RX64 r13=%016RX64\n"
450	"r14=%016RX64 r15=%016RX64\n"
451	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 rflags=%08RX64\n"
452	,
453	pBP[-5],
454	pBP[-4], pBP[-3],
455	pBP[-2], pBP[-1],
456	pBP[1], pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp - 16, pBP[0], pBP[-6]);
457	# endif
458	#endif
459
460	/* Callstack. */
461	DBGFADDRESS AddrPc, AddrBp, AddrSp;
462	PCDBGFSTACKFRAME pFirstFrame;
463	rc2 = DBGFR3StackWalkBeginEx(pVM->pUVM, pVCpu->idCpu, DBGFCODETYPE_RING0,
464	DBGFR3AddrFromHostR0(&AddrBp, pVCpu->vmm.s.CallRing3JmpBufR0.SavedEbp),
465	DBGFR3AddrFromHostR0(&AddrSp, pVCpu->vmm.s.CallRing3JmpBufR0.SpResume),
466	DBGFR3AddrFromHostR0(&AddrPc, pVCpu->vmm.s.CallRing3JmpBufR0.SavedEipForUnwind),
467	RTDBGRETURNTYPE_INVALID, &pFirstFrame);
468	if (RT_SUCCESS(rc2))
469	{
470	pHlp->pfnPrintf(pHlp,
471	"!!\n"
472	"!! Call Stack:\n"
473	"!!\n");
474	#if HC_ARCH_BITS == 32
475	pHlp->pfnPrintf(pHlp, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP Symbol [line]\n");
476	#else
477	pHlp->pfnPrintf(pHlp, "RBP Ret RBP Ret RIP RIP Symbol [line]\n");
478	#endif
479	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
480	pFrame;
481	pFrame = DBGFR3StackWalkNext(pFrame))
482	{
483	#if HC_ARCH_BITS == 32
484	pHlp->pfnPrintf(pHlp,
485	"%RHv %RHv %04RX32:%RHv %RHv %RHv %RHv %RHv",
486	(RTHCUINTPTR)pFrame->AddrFrame.off,
487	(RTHCUINTPTR)pFrame->AddrReturnFrame.off,
488	(RTHCUINTPTR)pFrame->AddrReturnPC.Sel,
489	(RTHCUINTPTR)pFrame->AddrReturnPC.off,
490	pFrame->Args.au32[0],
491	pFrame->Args.au32[1],
492	pFrame->Args.au32[2],
493	pFrame->Args.au32[3]);
494	pHlp->pfnPrintf(pHlp, " %RTsel:%08RHv", pFrame->AddrPC.Sel, pFrame->AddrPC.off);
495	#else
496	pHlp->pfnPrintf(pHlp,
497	"%RHv %RHv %RHv %RHv",
498	(RTHCUINTPTR)pFrame->AddrFrame.off,
499	(RTHCUINTPTR)pFrame->AddrReturnFrame.off,
500	(RTHCUINTPTR)pFrame->AddrReturnPC.off,
501	(RTHCUINTPTR)pFrame->AddrPC.off);
502	#endif
503	if (pFrame->pSymPC)
504	{
505	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value;
506	if (offDisp > 0)
507	pHlp->pfnPrintf(pHlp, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
508	else if (offDisp < 0)
509	pHlp->pfnPrintf(pHlp, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
510	else
511	pHlp->pfnPrintf(pHlp, " %s", pFrame->pSymPC->szName);
512	}
513	if (pFrame->pLinePC)
514	pHlp->pfnPrintf(pHlp, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
515	pHlp->pfnPrintf(pHlp, "\n");
516	for (uint32_t iReg = 0; iReg < pFrame->cSureRegs; iReg++)
517	{
518	const char *pszName = pFrame->paSureRegs[iReg].pszName;
519	if (!pszName)
520	pszName = DBGFR3RegCpuName(pVM->pUVM, pFrame->paSureRegs[iReg].enmReg,
521	pFrame->paSureRegs[iReg].enmType);
522	char szValue[1024];
523	szValue[0] = '\0';
524	DBGFR3RegFormatValue(szValue, sizeof(szValue), &pFrame->paSureRegs[iReg].Value,
525	pFrame->paSureRegs[iReg].enmType, false);
526	pHlp->pfnPrintf(pHlp, " %-3s=%s\n", pszName, szValue);
527	}
528	}
529	DBGFR3StackWalkEnd(pFirstFrame);
530	}
531
532	/* Symbols on the stack. */
533	#ifdef VMM_R0_SWITCH_STACK
534	uint32_t const iLast = VMM_STACK_SIZE / sizeof(uintptr_t);
535	uint32_t iAddr = (uint32_t)( pVCpu->vmm.s.CallRing3JmpBufR0.SavedEsp
536	- MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3)) / sizeof(uintptr_t);
537	if (iAddr > iLast)
538	iAddr = 0;
539	#else
540	uint32_t const iLast = RT_MIN(pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack, VMM_STACK_SIZE)
541	/ sizeof(uintptr_t);
542	uint32_t iAddr = 0;
543	#endif
544	pHlp->pfnPrintf(pHlp,
545	"!!\n"
546	"!! Addresses on the stack (iAddr=%#x, iLast=%#x)\n"
547	"!!\n",
548	iAddr, iLast);
549	uintptr_t const paAddr = (uintptr_t const )pVCpu->vmm.s.pbEMTStackR3;
550	while (iAddr < iLast)
551	{
552	uintptr_t const uAddr = paAddr[iAddr];
553	if (uAddr > X86_PAGE_SIZE)
554	{
555	DBGFADDRESS Addr;
556	DBGFR3AddrFromFlat(pVM->pUVM, &Addr, uAddr);
557	RTGCINTPTR offDisp = 0;
558	PRTDBGSYMBOL pSym = DBGFR3AsSymbolByAddrA(pVM->pUVM, DBGF_AS_R0, &Addr,
559	RTDBGSYMADDR_FLAGS_LESS_OR_EQUAL \| RTDBGSYMADDR_FLAGS_SKIP_ABS_IN_DEFERRED,
560	&offDisp, NULL);
561	RTGCINTPTR offLineDisp;
562	PRTDBGLINE pLine = DBGFR3AsLineByAddrA(pVM->pUVM, DBGF_AS_R0, &Addr, &offLineDisp, NULL);
563	if (pLine \|\| pSym)
564	{
565	pHlp->pfnPrintf(pHlp, "%#06x: %p =>", iAddr * sizeof(uintptr_t), uAddr);
566	if (pSym)
567	pHlp->pfnPrintf(pHlp, " %s + %#x", pSym->szName, (intptr_t)offDisp);
568	if (pLine)
569	pHlp->pfnPrintf(pHlp, " [%s:%u + %#x]\n", pLine->szFilename, pLine->uLineNo, offLineDisp);
570	else
571	pHlp->pfnPrintf(pHlp, "\n");
572	RTDbgSymbolFree(pSym);
573	RTDbgLineFree(pLine);
574	}
575	}
576	iAddr++;
577	}
578
579	/* raw stack */
580	Hlp.fRecSummary = false;
581	pHlp->pfnPrintf(pHlp,
582	"!!\n"
583	"!! Raw stack (mind the direction).\n"
584	"!! pbEMTStackR0=%RHv pbEMTStackBottomR0=%RHv VMM_STACK_SIZE=%#x\n"
585	"!! pbEmtStackR3=%p\n"
586	"!!\n"
587	"%.*Rhxd\n",
588	MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3),
589	MMHyperCCToR0(pVM, pVCpu->vmm.s.pbEMTStackR3) + VMM_STACK_SIZE,
590	VMM_STACK_SIZE,
591	pVCpu->vmm.s.pbEMTStackR3,
592	VMM_STACK_SIZE, pVCpu->vmm.s.pbEMTStackR3);
593	}
594	else
595	{
596	pHlp->pfnPrintf(pHlp,
597	"!! Skipping ring-0 registers and stack, rcErr=%Rrc\n", rcErr);
598	}
599	break;
600	}
601
602	case VERR_IEM_INSTR_NOT_IMPLEMENTED:
603	case VERR_IEM_ASPECT_NOT_IMPLEMENTED:
604	case VERR_PATM_IPE_TRAP_IN_PATCH_CODE:
605	case VERR_EM_GUEST_CPU_HANG:
606	{
607	CPUMImportGuestStateOnDemand(pVCpu, CPUMCTX_EXTRN_ABSOLUTELY_ALL);
608	fDoneImport = true;
609
610	DBGFR3Info(pVM->pUVM, "cpumguest", NULL, pHlp);
611	DBGFR3Info(pVM->pUVM, "cpumguestinstr", NULL, pHlp);
612	DBGFR3Info(pVM->pUVM, "cpumguesthwvirt", NULL, pHlp);
613	break;
614	}
615
616	/*
617	* For some problems (e.g. VERR_INVALID_STATE in VMMR0.cpp), there could be
618	* additional details in the assertion messages.
619	*/
620	default:
621	{
622	const char *pszMsg1 = VMMR3GetRZAssertMsg1(pVM);
623	while (pszMsg1 && *pszMsg1 == '\n')
624	pszMsg1++;
625	if (pszMsg1 && *pszMsg1 != '\0')
626	pHlp->pfnPrintf(pHlp, "AssertMsg1: %s\n", pszMsg1);
627
628	const char *pszMsg2 = VMMR3GetRZAssertMsg2(pVM);
629	while (pszMsg2 && *pszMsg2 == '\n')
630	pszMsg2++;
631	if (pszMsg2 && *pszMsg2 != '\0')
632	pHlp->pfnPrintf(pHlp, "AssertMsg2: %s\n", pszMsg2);
633	break;
634	}
635
636	} /* switch (rcErr) */
637	Hlp.fRecSummary = false;
638
639
640	/*
641	* Generic info dumper loop.
642	*/
643	if (!fDoneImport)
644	CPUMImportGuestStateOnDemand(pVCpu, CPUMCTX_EXTRN_ABSOLUTELY_ALL);
645	static struct
646	{
647	const char *pszInfo;
648	const char *pszArgs;
649	} const aInfo[] =
650	{
651	{ "mappings", NULL },
652	{ "hma", NULL },
653	{ "cpumguest", "verbose" },
654	{ "cpumguesthwvirt", "verbose" },
655	{ "cpumguestinstr", "verbose" },
656	{ "cpumhyper", "verbose" },
657	{ "cpumhost", "verbose" },
658	{ "mode", "all" },
659	{ "cpuid", "verbose" },
660	{ "handlers", "phys virt hyper stats" },
661	{ "timers", NULL },
662	{ "activetimers", NULL },
663	};
664	for (unsigned i = 0; i < RT_ELEMENTS(aInfo); i++)
665	{
666	if (fDoneHyper && !strcmp(aInfo[i].pszInfo, "cpumhyper"))
667	continue;
668	pHlp->pfnPrintf(pHlp,
669	"!!\n"
670	"!! {%s, %s}\n"
671	"!!\n",
672	aInfo[i].pszInfo, aInfo[i].pszArgs);
673	DBGFR3Info(pVM->pUVM, aInfo[i].pszInfo, aInfo[i].pszArgs, pHlp);
674	}
675
676	/* All other info items */
677	DBGFR3InfoMulti(pVM,
678	"*",
679	"mappings\|hma\|cpum\|cpumguest\|cpumguesthwvirt\|cpumguestinstr\|cpumhyper\|cpumhost\|mode\|cpuid"
680	"\|pgmpd\|pgmcr3\|timers\|activetimers\|handlers\|help\|exithistory",
681	"!!\n"
682	"!! {%s}\n"
683	"!!\n",
684	pHlp);
685
686
687	/* done */
688	pHlp->pfnPrintf(pHlp,
689	"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
690
691
692	/*
693	* Repeat the summary to stderr so we don't have to scroll half a mile up.
694	*/
695	vmmR3FatalDumpInfoHlpFlushStdErr(&Hlp);
696	if (Hlp.szSummary[0])
697	RTStrmPrintf(g_pStdErr,
698	"%s"
699	"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n",
700	Hlp.szSummary);
701
702	/*
703	* Delete the output instance (flushing and restoring of flags).
704	*/
705	vmmR3FatalDumpInfoHlpDelete(&Hlp);
706	}
707

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source: vbox/trunk/src/VBox/VMM/VMMR3/VMMGuruMeditation.cpp@ 90189

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