VMMInternal.h@ 87819

Last change on this file since 87819 was 87819, checked in by vboxsync, 4 years ago
VMM: Disabled the EMT yield timer as it is out dated (multi core CPUs) and will be pointless when timers move off the EMTs. bugref:9943
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 21.6 KB

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1	/* $Id: VMMInternal.h 87819 2021-02-20 10:24:03Z vboxsync $ */
2	/** @file
3	* VMM - Internal header file.
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	#ifndef VMM_INCLUDED_SRC_include_VMMInternal_h
19	#define VMM_INCLUDED_SRC_include_VMMInternal_h
20	#ifndef RT_WITHOUT_PRAGMA_ONCE
21	# pragma once
22	#endif
23
24	#include <VBox/cdefs.h>
25	#include <VBox/sup.h>
26	#include <VBox/vmm/stam.h>
27	#include <VBox/vmm/vmm.h>
28	#include <VBox/log.h>
29	#include <iprt/critsect.h>
30
31	#if !defined(IN_VMM_R3) && !defined(IN_VMM_R0) && !defined(IN_VMM_RC)
32	# error "Not in VMM! This is an internal header!"
33	#endif
34	#if HC_ARCH_BITS == 32
35	# error "32-bit hosts are no longer supported. Go back to 6.0 or earlier!"
36	#endif
37
38
39
40	/** @defgroup grp_vmm_int Internals
41	* @ingroup grp_vmm
42	* @internal
43	* @{
44	*/
45
46	/** @def VBOX_WITH_RC_RELEASE_LOGGING
47	* Enables RC release logging. */
48	#define VBOX_WITH_RC_RELEASE_LOGGING
49
50	/** @def VBOX_WITH_R0_LOGGING
51	* Enables Ring-0 logging (non-release).
52	*
53	* Ring-0 logging isn't 100% safe yet (thread id reuse / process exit cleanup),
54	* so you have to sign up here by adding your defined(DEBUG_<userid>) to the
55	* \#if, or by adding VBOX_WITH_R0_LOGGING to your LocalConfig.kmk.
56	*/
57	#if defined(DEBUG_sandervl) \|\| defined(DEBUG_frank) \|\| defined(DEBUG_ramshankar) \|\| defined(DOXYGEN_RUNNING)
58	# define VBOX_WITH_R0_LOGGING
59	#endif
60
61	/** @def VBOX_STRICT_VMM_STACK
62	* Enables VMM stack guard pages to catch stack over- and underruns. */
63	#if defined(VBOX_STRICT) \|\| defined(DOXYGEN_RUNNING)
64	# define VBOX_STRICT_VMM_STACK
65	#endif
66
67
68	/**
69	* The ring-0 logger instance wrapper.
70	*
71	* We need to be able to find the VM handle from the logger instance, so we wrap
72	* it in this structure.
73	*/
74	typedef struct VMMR0LOGGER
75	{
76	/** Pointer to Pointer to the VM. */
77	R0PTRTYPE(PVMCC) pVM;
78	/** Size of the allocated logger instance (Logger). */
79	uint32_t cbLogger;
80	/** Flag indicating whether we've create the logger Ring-0 instance yet. */
81	bool fCreated;
82	/** Flag indicating whether we've disabled flushing (world switch) or not. */
83	bool fFlushingDisabled;
84	/** Flag indicating whether we've registered the instance already. */
85	bool fRegistered;
86	bool a8Alignment;
87	/** The CPU ID. */
88	VMCPUID idCpu;
89	#if HC_ARCH_BITS == 64
90	uint32_t u32Alignment;
91	#endif
92	/** The ring-0 logger instance. This extends beyond the size. */
93	RTLOGGER Logger;
94	} VMMR0LOGGER;
95	/** Pointer to a ring-0 logger instance wrapper. */
96	typedef VMMR0LOGGER *PVMMR0LOGGER;
97
98
99	/**
100	* Jump buffer for the setjmp/longjmp like constructs used to
101	* quickly 'call' back into Ring-3.
102	*/
103	typedef struct VMMR0JMPBUF
104	{
105	/** Traditional jmp_buf stuff
106	* @{ */
107	#if HC_ARCH_BITS == 32
108	uint32_t ebx;
109	uint32_t esi;
110	uint32_t edi;
111	uint32_t ebp;
112	uint32_t esp;
113	uint32_t eip;
114	uint32_t eflags;
115	#endif
116	#if HC_ARCH_BITS == 64
117	uint64_t rbx;
118	# ifdef RT_OS_WINDOWS
119	uint64_t rsi;
120	uint64_t rdi;
121	# endif
122	uint64_t rbp;
123	uint64_t r12;
124	uint64_t r13;
125	uint64_t r14;
126	uint64_t r15;
127	uint64_t rsp;
128	uint64_t rip;
129	# ifdef RT_OS_WINDOWS
130	uint128_t xmm6;
131	uint128_t xmm7;
132	uint128_t xmm8;
133	uint128_t xmm9;
134	uint128_t xmm10;
135	uint128_t xmm11;
136	uint128_t xmm12;
137	uint128_t xmm13;
138	uint128_t xmm14;
139	uint128_t xmm15;
140	# endif
141	uint64_t rflags;
142	#endif
143	/** @} */
144
145	/** Flag that indicates that we've done a ring-3 call. */
146	bool fInRing3Call;
147	/** The number of bytes we've saved. */
148	uint32_t cbSavedStack;
149	/** Pointer to the buffer used to save the stack.
150	* This is assumed to be 8KB. */
151	RTR0PTR pvSavedStack;
152	/** Esp we we match against esp on resume to make sure the stack wasn't relocated. */
153	RTHCUINTREG SpCheck;
154	/** The esp we should resume execution with after the restore. */
155	RTHCUINTREG SpResume;
156	/** ESP/RSP at the time of the jump to ring 3. */
157	RTHCUINTREG SavedEsp;
158	/** EBP/RBP at the time of the jump to ring 3. */
159	RTHCUINTREG SavedEbp;
160	/** EIP/RIP within vmmR0CallRing3LongJmp for assisting unwinding. */
161	RTHCUINTREG SavedEipForUnwind;
162	/** Unwind: The vmmR0CallRing3SetJmp return address value. */
163	RTHCUINTREG UnwindRetPcValue;
164	/** Unwind: The vmmR0CallRing3SetJmp return address stack location. */
165	RTHCUINTREG UnwindRetPcLocation;
166	#if HC_ARCH_BITS == 32
167	/** Alignment padding. */
168	uint32_t uPadding;
169	#endif
170
171	/** Stats: Max amount of stack used. */
172	uint32_t cbUsedMax;
173	/** Stats: Average stack usage. (Avg = cbUsedTotal / cUsedTotal) */
174	uint32_t cbUsedAvg;
175	/** Stats: Total amount of stack used. */
176	uint64_t cbUsedTotal;
177	/** Stats: Number of stack usages. */
178	uint64_t cUsedTotal;
179	} VMMR0JMPBUF;
180	/** Pointer to a ring-0 jump buffer. */
181	typedef VMMR0JMPBUF *PVMMR0JMPBUF;
182
183
184	/**
185	* VMM Data (part of VM)
186	*/
187	typedef struct VMM
188	{
189	/** Whether we should use the periodic preemption timers. */
190	bool fUsePeriodicPreemptionTimers;
191	/** Alignment padding. */
192	bool afPadding0[7];
193
194	#if 0 /* pointless when timers doesn't run on EMT */
195	/** The EMT yield timer. */
196	TMTIMERHANDLE hYieldTimer;
197	/** The period to the next timeout when suspended or stopped.
198	* This is 0 when running. */
199	uint32_t cYieldResumeMillies;
200	/** The EMT yield timer interval (milliseconds). */
201	uint32_t cYieldEveryMillies;
202	/** The timestamp of the previous yield. (nano) */
203	uint64_t u64LastYield;
204	#endif
205
206	/** @name EMT Rendezvous
207	* @{ */
208	/** Semaphore to wait on upon entering ordered execution. */
209	R3PTRTYPE(PRTSEMEVENT) pahEvtRendezvousEnterOrdered;
210	/** Semaphore to wait on upon entering for one-by-one execution. */
211	RTSEMEVENT hEvtRendezvousEnterOneByOne;
212	/** Semaphore to wait on upon entering for all-at-once execution. */
213	RTSEMEVENTMULTI hEvtMulRendezvousEnterAllAtOnce;
214	/** Semaphore to wait on when done. */
215	RTSEMEVENTMULTI hEvtMulRendezvousDone;
216	/** Semaphore the VMMR3EmtRendezvous caller waits on at the end. */
217	RTSEMEVENT hEvtRendezvousDoneCaller;
218	/** Semaphore to wait on upon recursing. */
219	RTSEMEVENTMULTI hEvtMulRendezvousRecursionPush;
220	/** Semaphore to wait on after done with recursion (caller restoring state). */
221	RTSEMEVENTMULTI hEvtMulRendezvousRecursionPop;
222	/** Semaphore the initiator waits on while the EMTs are getting into position
223	* on hEvtMulRendezvousRecursionPush. */
224	RTSEMEVENT hEvtRendezvousRecursionPushCaller;
225	/** Semaphore the initiator waits on while the EMTs sitting on
226	* hEvtMulRendezvousRecursionPop wakes up and leave. */
227	RTSEMEVENT hEvtRendezvousRecursionPopCaller;
228	/** Callback. */
229	R3PTRTYPE(PFNVMMEMTRENDEZVOUS) volatile pfnRendezvous;
230	/** The user argument for the callback. */
231	RTR3PTR volatile pvRendezvousUser;
232	/** Flags. */
233	volatile uint32_t fRendezvousFlags;
234	/** The number of EMTs that has entered. */
235	volatile uint32_t cRendezvousEmtsEntered;
236	/** The number of EMTs that has done their job. */
237	volatile uint32_t cRendezvousEmtsDone;
238	/** The number of EMTs that has returned. */
239	volatile uint32_t cRendezvousEmtsReturned;
240	/** The status code. */
241	volatile int32_t i32RendezvousStatus;
242	/** Spin lock. */
243	volatile uint32_t u32RendezvousLock;
244	/** The recursion depth. */
245	volatile uint32_t cRendezvousRecursions;
246	/** The number of EMTs that have entered the recursion routine. */
247	volatile uint32_t cRendezvousEmtsRecursingPush;
248	/** The number of EMTs that have leaft the recursion routine. */
249	volatile uint32_t cRendezvousEmtsRecursingPop;
250	/** Triggers rendezvous recursion in the other threads. */
251	volatile bool fRendezvousRecursion;
252
253	/** @} */
254
255	/** RTThreadPreemptIsPendingTrusty() result, set by vmmR0InitVM() for
256	* release logging purposes. */
257	bool fIsPreemptPendingApiTrusty : 1;
258	/** The RTThreadPreemptIsPossible() result, set by vmmR0InitVM() for
259	* release logging purposes. */
260	bool fIsPreemptPossible : 1;
261
262	bool afAlignment2[2]; /*< Alignment padding. /
263
264	/** Buffer for storing the standard assertion message for a ring-0 assertion.
265	* Used for saving the assertion message text for the release log and guru
266	* meditation dump. */
267	char szRing0AssertMsg1[512];
268	/** Buffer for storing the custom message for a ring-0 assertion. */
269	char szRing0AssertMsg2[256];
270
271	/** Number of VMMR0_DO_HM_RUN or VMMR0_DO_NEM_RUN calls. */
272	STAMCOUNTER StatRunGC;
273
274	/** Statistics for each of the RC/R0 return codes.
275	* @{ */
276	STAMCOUNTER StatRZRetNormal;
277	STAMCOUNTER StatRZRetInterrupt;
278	STAMCOUNTER StatRZRetInterruptHyper;
279	STAMCOUNTER StatRZRetGuestTrap;
280	STAMCOUNTER StatRZRetRingSwitch;
281	STAMCOUNTER StatRZRetRingSwitchInt;
282	STAMCOUNTER StatRZRetStaleSelector;
283	STAMCOUNTER StatRZRetIRETTrap;
284	STAMCOUNTER StatRZRetEmulate;
285	STAMCOUNTER StatRZRetPatchEmulate;
286	STAMCOUNTER StatRZRetIORead;
287	STAMCOUNTER StatRZRetIOWrite;
288	STAMCOUNTER StatRZRetIOCommitWrite;
289	STAMCOUNTER StatRZRetMMIORead;
290	STAMCOUNTER StatRZRetMMIOWrite;
291	STAMCOUNTER StatRZRetMMIOCommitWrite;
292	STAMCOUNTER StatRZRetMMIOPatchRead;
293	STAMCOUNTER StatRZRetMMIOPatchWrite;
294	STAMCOUNTER StatRZRetMMIOReadWrite;
295	STAMCOUNTER StatRZRetMSRRead;
296	STAMCOUNTER StatRZRetMSRWrite;
297	STAMCOUNTER StatRZRetLDTFault;
298	STAMCOUNTER StatRZRetGDTFault;
299	STAMCOUNTER StatRZRetIDTFault;
300	STAMCOUNTER StatRZRetTSSFault;
301	STAMCOUNTER StatRZRetCSAMTask;
302	STAMCOUNTER StatRZRetSyncCR3;
303	STAMCOUNTER StatRZRetMisc;
304	STAMCOUNTER StatRZRetPatchInt3;
305	STAMCOUNTER StatRZRetPatchPF;
306	STAMCOUNTER StatRZRetPatchGP;
307	STAMCOUNTER StatRZRetPatchIretIRQ;
308	STAMCOUNTER StatRZRetRescheduleREM;
309	STAMCOUNTER StatRZRetToR3Total;
310	STAMCOUNTER StatRZRetToR3FF;
311	STAMCOUNTER StatRZRetToR3Unknown;
312	STAMCOUNTER StatRZRetToR3TMVirt;
313	STAMCOUNTER StatRZRetToR3HandyPages;
314	STAMCOUNTER StatRZRetToR3PDMQueues;
315	STAMCOUNTER StatRZRetToR3Rendezvous;
316	STAMCOUNTER StatRZRetToR3Timer;
317	STAMCOUNTER StatRZRetToR3DMA;
318	STAMCOUNTER StatRZRetToR3CritSect;
319	STAMCOUNTER StatRZRetToR3Iem;
320	STAMCOUNTER StatRZRetToR3Iom;
321	STAMCOUNTER StatRZRetTimerPending;
322	STAMCOUNTER StatRZRetInterruptPending;
323	STAMCOUNTER StatRZRetCallRing3;
324	STAMCOUNTER StatRZRetPATMDuplicateFn;
325	STAMCOUNTER StatRZRetPGMChangeMode;
326	STAMCOUNTER StatRZRetPendingRequest;
327	STAMCOUNTER StatRZRetPGMFlushPending;
328	STAMCOUNTER StatRZRetPatchTPR;
329	STAMCOUNTER StatRZCallPDMCritSectEnter;
330	STAMCOUNTER StatRZCallPDMLock;
331	STAMCOUNTER StatRZCallLogFlush;
332	STAMCOUNTER StatRZCallPGMPoolGrow;
333	STAMCOUNTER StatRZCallPGMMapChunk;
334	STAMCOUNTER StatRZCallPGMAllocHandy;
335	STAMCOUNTER StatRZCallVMSetError;
336	STAMCOUNTER StatRZCallVMSetRuntimeError;
337	STAMCOUNTER StatRZCallPGMLock;
338	/** @} */
339	} VMM;
340	/** Pointer to VMM. */
341	typedef VMM *PVMM;
342
343
344	/**
345	* VMMCPU Data (part of VMCPU)
346	*/
347	typedef struct VMMCPU
348	{
349	/** The last RC/R0 return code. */
350	int32_t iLastGZRc;
351	/** Alignment padding. */
352	uint32_t u32Padding0;
353
354	/** VMM stack, pointer to the top of the stack in R3.
355	* Stack is allocated from the hypervisor heap and is page aligned
356	* and always writable in RC. */
357	R3PTRTYPE(uint8_t *) pbEMTStackR3;
358
359	/** Pointer to the R0 logger instance - R3 Ptr.
360	* This is NULL if logging is disabled. */
361	R3PTRTYPE(PVMMR0LOGGER) pR0LoggerR3;
362	/** Pointer to the R0 logger instance - R0 Ptr.
363	* This is NULL if logging is disabled. */
364	R0PTRTYPE(PVMMR0LOGGER) pR0LoggerR0;
365
366	/** Pointer to the R0 release logger instance - R3 Ptr.
367	* This is NULL if logging is disabled. */
368	R3PTRTYPE(PVMMR0LOGGER) pR0RelLoggerR3;
369	/** Pointer to the R0 release instance - R0 Ptr.
370	* This is NULL if logging is disabled. */
371	R0PTRTYPE(PVMMR0LOGGER) pR0RelLoggerR0;
372
373	/** Thread context switching hook (ring-0). */
374	RTTHREADCTXHOOK hCtxHook;
375
376	/** @name Rendezvous
377	* @{ */
378	/** Whether the EMT is executing a rendezvous right now. For detecting
379	* attempts at recursive rendezvous. */
380	bool volatile fInRendezvous;
381	bool afPadding1[10];
382	/** @} */
383
384	/** Whether we can HLT in VMMR0 rather than having to return to EM.
385	* Updated by vmR3SetHaltMethodU(). */
386	bool fMayHaltInRing0;
387	/** The minimum delta for which we can HLT in ring-0 for.
388	* The deadlines we can calculate are from TM, so, if it's too close
389	* we should just return to ring-3 and run the timer wheel, no point
390	* in spinning in ring-0.
391	* Updated by vmR3SetHaltMethodU(). */
392	uint32_t cNsSpinBlockThreshold;
393	/** Number of ring-0 halts (used for depreciating following values). */
394	uint32_t cR0Halts;
395	/** Number of ring-0 halts succeeding (VINF_SUCCESS) recently. */
396	uint32_t cR0HaltsSucceeded;
397	/** Number of ring-0 halts failing (VINF_EM_HALT) recently. */
398	uint32_t cR0HaltsToRing3;
399	/** Padding */
400	uint32_t u32Padding2;
401
402	/** @name Raw-mode context tracing data.
403	* @{ */
404	SUPDRVTRACERUSRCTX TracerCtx;
405	/** @} */
406
407	/** Alignment padding, making sure u64CallRing3Arg and CallRing3JmpBufR0 are nicely aligned. */
408	uint32_t au32Padding3[1];
409
410	/** @name Call Ring-3
411	* Formerly known as host calls.
412	* @{ */
413	/** The disable counter. */
414	uint32_t cCallRing3Disabled;
415	/** The pending operation. */
416	VMMCALLRING3 enmCallRing3Operation;
417	/** The result of the last operation. */
418	int32_t rcCallRing3;
419	/** The argument to the operation. */
420	uint64_t u64CallRing3Arg;
421	/** The Ring-0 notification callback. */
422	R0PTRTYPE(PFNVMMR0CALLRING3NOTIFICATION) pfnCallRing3CallbackR0;
423	/** The Ring-0 notification callback user argument. */
424	R0PTRTYPE(void *) pvCallRing3CallbackUserR0;
425	/** The Ring-0 jmp buffer.
426	* @remarks The size of this type isn't stable in assembly, so don't put
427	* anything that needs to be accessed from assembly after it. */
428	VMMR0JMPBUF CallRing3JmpBufR0;
429	/** @} */
430
431	STAMPROFILE StatR0HaltBlock;
432	STAMPROFILE StatR0HaltBlockOnTime;
433	STAMPROFILE StatR0HaltBlockOverslept;
434	STAMPROFILE StatR0HaltBlockInsomnia;
435	STAMCOUNTER StatR0HaltExec;
436	STAMCOUNTER StatR0HaltExecFromBlock;
437	STAMCOUNTER StatR0HaltExecFromSpin;
438	STAMCOUNTER StatR0HaltToR3FromSpin;
439	} VMMCPU;
440	AssertCompileMemberAlignment(VMMCPU, TracerCtx, 8);
441	/** Pointer to VMMCPU. */
442	typedef VMMCPU *PVMMCPU;
443
444
445
446	RT_C_DECLS_BEGIN
447
448	int vmmInitFormatTypes(void);
449	void vmmTermFormatTypes(void);
450	uint32_t vmmGetBuildType(void);
451
452	#ifdef IN_RING3
453	int vmmR3SwitcherInit(PVM pVM);
454	void vmmR3SwitcherRelocate(PVM pVM, RTGCINTPTR offDelta);
455	#endif /* IN_RING3 */
456
457	#ifdef IN_RING0
458
459	/**
460	* World switcher assembly routine.
461	* It will call VMMRCEntry().
462	*
463	* @returns return code from VMMRCEntry().
464	* @param pVM The cross context VM structure.
465	* @param uArg See VMMRCEntry().
466	* @internal
467	*/
468	DECLASM(int) vmmR0WorldSwitch(PVM pVM, unsigned uArg);
469
470	/**
471	* Callback function for vmmR0CallRing3SetJmp.
472	*
473	* @returns VBox status code.
474	* @param pVM The cross context VM structure.
475	*/
476	typedef DECLCALLBACKTYPE(int, FNVMMR0SETJMP,(PVMCC pVM, PVMCPUCC pVCpu));
477	/** Pointer to FNVMMR0SETJMP(). */
478	typedef FNVMMR0SETJMP *PFNVMMR0SETJMP;
479
480	/**
481	* The setjmp variant used for calling Ring-3.
482	*
483	* This differs from the normal setjmp in that it will resume VMMRZCallRing3 if we're
484	* in the middle of a ring-3 call. Another differences is the function pointer and
485	* argument. This has to do with resuming code and the stack frame of the caller.
486	*
487	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
488	* @param pJmpBuf The jmp_buf to set.
489	* @param pfn The function to be called when not resuming.
490	* @param pVM The cross context VM structure.
491	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
492	*/
493	DECLASM(int) vmmR0CallRing3SetJmp(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP pfn, PVM pVM, PVMCPU pVCpu);
494
495
496	/**
497	* Callback function for vmmR0CallRing3SetJmp2.
498	*
499	* @returns VBox status code.
500	* @param pvUser The user argument.
501	*/
502	typedef DECLCALLBACKTYPE(int, FNVMMR0SETJMP2,(PGVM pGVM, VMCPUID idCpu));
503	/** Pointer to FNVMMR0SETJMP2(). */
504	typedef FNVMMR0SETJMP2 *PFNVMMR0SETJMP2;
505
506	/**
507	* Same as vmmR0CallRing3SetJmp except for the function signature.
508	*
509	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
510	* @param pJmpBuf The jmp_buf to set.
511	* @param pfn The function to be called when not resuming.
512	* @param pGVM The ring-0 VM structure.
513	* @param idCpu The ID of the calling EMT.
514	*/
515	DECLASM(int) vmmR0CallRing3SetJmp2(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP2 pfn, PGVM pGVM, VMCPUID idCpu);
516
517
518	/**
519	* Callback function for vmmR0CallRing3SetJmpEx.
520	*
521	* @returns VBox status code.
522	* @param pvUser The user argument.
523	*/
524	typedef DECLCALLBACKTYPE(int, FNVMMR0SETJMPEX,(void *pvUser));
525	/** Pointer to FNVMMR0SETJMPEX(). */
526	typedef FNVMMR0SETJMPEX *PFNVMMR0SETJMPEX;
527
528	/**
529	* Same as vmmR0CallRing3SetJmp except for the function signature.
530	*
531	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
532	* @param pJmpBuf The jmp_buf to set.
533	* @param pfn The function to be called when not resuming.
534	* @param pvUser The argument of that function.
535	*/
536	DECLASM(int) vmmR0CallRing3SetJmpEx(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMPEX pfn, void *pvUser);
537
538
539	/**
540	* Worker for VMMRZCallRing3.
541	* This will save the stack and registers.
542	*
543	* @returns rc.
544	* @param pJmpBuf Pointer to the jump buffer.
545	* @param rc The return code.
546	*/
547	DECLASM(int) vmmR0CallRing3LongJmp(PVMMR0JMPBUF pJmpBuf, int rc);
548
549	/**
550	* Internal R0 logger worker: Logger wrapper.
551	*/
552	VMMR0DECL(void) vmmR0LoggerWrapper(const char *pszFormat, ...);
553
554	/**
555	* Internal R0 logger worker: Flush logger.
556	*
557	* @param pLogger The logger instance to flush.
558	* @remark This function must be exported!
559	*/
560	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger);
561
562	/**
563	* Internal R0 logger worker: Custom prefix.
564	*
565	* @returns Number of chars written.
566	*
567	* @param pLogger The logger instance.
568	* @param pchBuf The output buffer.
569	* @param cchBuf The size of the buffer.
570	* @param pvUser User argument (ignored).
571	*/
572	VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser);
573
574	# ifdef VBOX_WITH_TRIPLE_FAULT_HACK
575	int vmmR0TripleFaultHackInit(void);
576	void vmmR0TripleFaultHackTerm(void);
577	# endif
578
579	#endif /* IN_RING0 */
580
581	RT_C_DECLS_END
582
583	/** @} */
584
585	#endif /* !VMM_INCLUDED_SRC_include_VMMInternal_h */

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source: vbox/trunk/src/VBox/VMM/include/VMMInternal.h@ 87819

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