VMMInternal.h@ 58944

Last change on this file since 58944 was 58123, checked in by vboxsync, 9 years ago
VMM: Made @param pVCpu more uniform and to the point.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 24.3 KB

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1	/* $Id: VMMInternal.h 58123 2015-10-08 18:09:45Z vboxsync $ */
2	/** @file
3	* VMM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 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 ___VMMInternal_h
19	#define ___VMMInternal_h
20
21	#include <VBox/cdefs.h>
22	#include <VBox/sup.h>
23	#include <VBox/vmm/stam.h>
24	#include <VBox/vmm/vmm.h>
25	#include <VBox/log.h>
26	#include <iprt/critsect.h>
27
28	#if !defined(IN_VMM_R3) && !defined(IN_VMM_R0) && !defined(IN_VMM_RC)
29	# error "Not in VMM! This is an internal header!"
30	#endif
31	#if defined(RT_OS_DARWIN) && HC_ARCH_BITS == 32
32	# error "32-bit darwin is no longer supported. Go back to 4.3 or earlier!"
33	#endif
34
35
36
37	/** @defgroup grp_vmm_int Internals
38	* @ingroup grp_vmm
39	* @internal
40	* @{
41	*/
42
43	/** @def VBOX_WITH_RC_RELEASE_LOGGING
44	* Enables RC release logging. */
45	#define VBOX_WITH_RC_RELEASE_LOGGING
46
47	/** @def VBOX_WITH_R0_LOGGING
48	* Enables Ring-0 logging (non-release).
49	*
50	* Ring-0 logging isn't 100% safe yet (thread id reuse / process exit cleanup),
51	* so you have to sign up here by adding your defined(DEBUG_<userid>) to the
52	* \#if, or by adding VBOX_WITH_R0_LOGGING to your LocalConfig.kmk.
53	*/
54	#if defined(DEBUG_sandervl) \|\| defined(DEBUG_frank) \|\| defined(DEBUG_ramshankar) \|\| defined(DOXYGEN_RUNNING)
55	# define VBOX_WITH_R0_LOGGING
56	#endif
57
58	/** @def VBOX_STRICT_VMM_STACK
59	* Enables VMM stack guard pages to catch stack over- and underruns. */
60	#if defined(VBOX_STRICT) \|\| defined(DOXYGEN_RUNNING)
61	# define VBOX_STRICT_VMM_STACK
62	#endif
63
64
65	/**
66	* Converts a VMM pointer into a VM pointer.
67	* @returns Pointer to the VM structure the VMM is part of.
68	* @param pVMM Pointer to VMM instance data.
69	*/
70	#define VMM2VM(pVMM) ( (PVM)((char*)pVMM - pVMM->offVM) )
71
72
73	/**
74	* Switcher function, HC to RC.
75	*
76	* @param pVM The cross context VM structure.
77	* @returns Return code indicating the action to take.
78	*/
79	typedef DECLASMTYPE(int) FNVMMSWITCHERHC(PVM pVM);
80	/** Pointer to switcher function. */
81	typedef FNVMMSWITCHERHC *PFNVMMSWITCHERHC;
82
83	/**
84	* Switcher function, RC to HC.
85	*
86	* @param rc VBox status code.
87	*/
88	typedef DECLASMTYPE(void) FNVMMSWITCHERRC(int rc);
89	/** Pointer to switcher function. */
90	typedef FNVMMSWITCHERRC *PFNVMMSWITCHERRC;
91
92
93	/**
94	* The ring-0 logger instance wrapper.
95	*
96	* We need to be able to find the VM handle from the logger instance, so we wrap
97	* it in this structure.
98	*/
99	typedef struct VMMR0LOGGER
100	{
101	/** Pointer to Pointer to the VM. */
102	R0PTRTYPE(PVM) pVM;
103	/** Size of the allocated logger instance (Logger). */
104	uint32_t cbLogger;
105	/** Flag indicating whether we've create the logger Ring-0 instance yet. */
106	bool fCreated;
107	/** Flag indicating whether we've disabled flushing (world switch) or not. */
108	bool fFlushingDisabled;
109	/** Flag indicating whether we've registered the instance already. */
110	bool fRegistered;
111	bool a8Alignment;
112	/** The CPU ID. */
113	VMCPUID idCpu;
114	#if HC_ARCH_BITS == 64
115	uint32_t u32Alignment;
116	#endif
117	/** The ring-0 logger instance. This extends beyond the size. */
118	RTLOGGER Logger;
119	} VMMR0LOGGER;
120	/** Pointer to a ring-0 logger instance wrapper. */
121	typedef VMMR0LOGGER *PVMMR0LOGGER;
122
123
124	/**
125	* Jump buffer for the setjmp/longjmp like constructs used to
126	* quickly 'call' back into Ring-3.
127	*/
128	typedef struct VMMR0JMPBUF
129	{
130	/** Traditional jmp_buf stuff
131	* @{ */
132	#if HC_ARCH_BITS == 32
133	uint32_t ebx;
134	uint32_t esi;
135	uint32_t edi;
136	uint32_t ebp;
137	uint32_t esp;
138	uint32_t eip;
139	uint32_t eflags;
140	#endif
141	#if HC_ARCH_BITS == 64
142	uint64_t rbx;
143	# ifdef RT_OS_WINDOWS
144	uint64_t rsi;
145	uint64_t rdi;
146	# endif
147	uint64_t rbp;
148	uint64_t r12;
149	uint64_t r13;
150	uint64_t r14;
151	uint64_t r15;
152	uint64_t rsp;
153	uint64_t rip;
154	# ifdef RT_OS_WINDOWS
155	uint128_t xmm6;
156	uint128_t xmm7;
157	uint128_t xmm8;
158	uint128_t xmm9;
159	uint128_t xmm10;
160	uint128_t xmm11;
161	uint128_t xmm12;
162	uint128_t xmm13;
163	uint128_t xmm14;
164	uint128_t xmm15;
165	# endif
166	uint64_t rflags;
167	#endif
168	/** @} */
169
170	/** Flag that indicates that we've done a ring-3 call. */
171	bool fInRing3Call;
172	/** The number of bytes we've saved. */
173	uint32_t cbSavedStack;
174	/** Pointer to the buffer used to save the stack.
175	* This is assumed to be 8KB. */
176	RTR0PTR pvSavedStack;
177	/** Esp we we match against esp on resume to make sure the stack wasn't relocated. */
178	RTHCUINTREG SpCheck;
179	/** The esp we should resume execution with after the restore. */
180	RTHCUINTREG SpResume;
181	/** ESP/RSP at the time of the jump to ring 3. */
182	RTHCUINTREG SavedEsp;
183	/** EBP/RBP at the time of the jump to ring 3. */
184	RTHCUINTREG SavedEbp;
185
186	/** Stats: Max amount of stack used. */
187	uint32_t cbUsedMax;
188	/** Stats: Average stack usage. (Avg = cbUsedTotal / cUsedTotal) */
189	uint32_t cbUsedAvg;
190	/** Stats: Total amount of stack used. */
191	uint64_t cbUsedTotal;
192	/** Stats: Number of stack usages. */
193	uint64_t cUsedTotal;
194	} VMMR0JMPBUF;
195	/** Pointer to a ring-0 jump buffer. */
196	typedef VMMR0JMPBUF *PVMMR0JMPBUF;
197
198
199	/**
200	* VMM Data (part of VM)
201	*/
202	typedef struct VMM
203	{
204	/** Offset to the VM structure.
205	* See VMM2VM(). */
206	RTINT offVM;
207
208	/** @name World Switcher and Related
209	* @{
210	*/
211	/** Size of the core code. */
212	RTUINT cbCoreCode;
213	/** Physical address of core code. */
214	RTHCPHYS HCPhysCoreCode;
215	/** Pointer to core code ring-3 mapping - contiguous memory.
216	* At present this only means the context switcher code. */
217	RTR3PTR pvCoreCodeR3;
218	/** Pointer to core code ring-0 mapping - contiguous memory.
219	* At present this only means the context switcher code. */
220	RTR0PTR pvCoreCodeR0;
221	/** Pointer to core code guest context mapping. */
222	RTRCPTR pvCoreCodeRC;
223	RTRCPTR pRCPadding0; /*< Alignment padding. /
224	#ifdef VBOX_WITH_NMI
225	/** The guest context address of the APIC (host) mapping. */
226	RTRCPTR GCPtrApicBase;
227	RTRCPTR pRCPadding1; /*< Alignment padding. /
228	#endif
229	/** The current switcher.
230	* This will be set before the VMM is fully initialized. */
231	VMMSWITCHER enmSwitcher;
232	/** Array of offsets to the different switchers within the core code. */
233	uint32_t aoffSwitchers[VMMSWITCHER_MAX];
234	uint32_t u32Padding2; /*< Alignment padding. /
235
236	/** Resume Guest Execution. See CPUMGCResumeGuest(). */
237	RTRCPTR pfnCPUMRCResumeGuest;
238	/** Resume Guest Execution in V86 mode. See CPUMGCResumeGuestV86(). */
239	RTRCPTR pfnCPUMRCResumeGuestV86;
240	/** Call Trampoline. See vmmGCCallTrampoline(). */
241	RTRCPTR pfnCallTrampolineRC;
242	/** Guest to host switcher entry point. */
243	RCPTRTYPE(PFNVMMSWITCHERRC) pfnRCToHost;
244	/** Host to guest switcher entry point. */
245	R0PTRTYPE(PFNVMMSWITCHERHC) pfnR0ToRawMode;
246	/** @} */
247
248	/** @name Logging
249	* @{
250	*/
251	/** Size of the allocated logger instance (pRCLoggerRC/pRCLoggerR3). */
252	uint32_t cbRCLogger;
253	/** Pointer to the RC logger instance - RC Ptr.
254	* This is NULL if logging is disabled. */
255	RCPTRTYPE(PRTLOGGERRC) pRCLoggerRC;
256	/** Pointer to the GC logger instance - R3 Ptr.
257	* This is NULL if logging is disabled. */
258	R3PTRTYPE(PRTLOGGERRC) pRCLoggerR3;
259	/** Pointer to the GC release logger instance - R3 Ptr. */
260	R3PTRTYPE(PRTLOGGERRC) pRCRelLoggerR3;
261	/** Pointer to the GC release logger instance - RC Ptr. */
262	RCPTRTYPE(PRTLOGGERRC) pRCRelLoggerRC;
263	/** Size of the allocated release logger instance (pRCRelLoggerRC/pRCRelLoggerR3).
264	* This may differ from cbRCLogger. */
265	uint32_t cbRCRelLogger;
266	/** Whether log flushing has been disabled or not. */
267	bool fRCLoggerFlushingDisabled;
268	bool afAlignment[5]; /*< Alignment padding. /
269	/** @} */
270
271	/** Whether the stack guard pages have been stationed or not. */
272	bool fStackGuardsStationed;
273	/** Whether we should use the periodic preemption timers. */
274	bool fUsePeriodicPreemptionTimers;
275
276	/** The EMT yield timer. */
277	PTMTIMERR3 pYieldTimer;
278	/** The period to the next timeout when suspended or stopped.
279	* This is 0 when running. */
280	uint32_t cYieldResumeMillies;
281	/** The EMT yield timer interval (milliseconds). */
282	uint32_t cYieldEveryMillies;
283	/** The timestamp of the previous yield. (nano) */
284	uint64_t u64LastYield;
285
286	/** @name EMT Rendezvous
287	* @{ */
288	/** Semaphore to wait on upon entering ordered execution. */
289	R3PTRTYPE(PRTSEMEVENT) pahEvtRendezvousEnterOrdered;
290	/** Semaphore to wait on upon entering for one-by-one execution. */
291	RTSEMEVENT hEvtRendezvousEnterOneByOne;
292	/** Semaphore to wait on upon entering for all-at-once execution. */
293	RTSEMEVENTMULTI hEvtMulRendezvousEnterAllAtOnce;
294	/** Semaphore to wait on when done. */
295	RTSEMEVENTMULTI hEvtMulRendezvousDone;
296	/** Semaphore the VMMR3EmtRendezvous caller waits on at the end. */
297	RTSEMEVENT hEvtRendezvousDoneCaller;
298	/** Callback. */
299	R3PTRTYPE(PFNVMMEMTRENDEZVOUS) volatile pfnRendezvous;
300	/** The user argument for the callback. */
301	RTR3PTR volatile pvRendezvousUser;
302	/** Flags. */
303	volatile uint32_t fRendezvousFlags;
304	/** The number of EMTs that has entered. */
305	volatile uint32_t cRendezvousEmtsEntered;
306	/** The number of EMTs that has done their job. */
307	volatile uint32_t cRendezvousEmtsDone;
308	/** The number of EMTs that has returned. */
309	volatile uint32_t cRendezvousEmtsReturned;
310	/** The status code. */
311	volatile int32_t i32RendezvousStatus;
312	/** Spin lock. */
313	volatile uint32_t u32RendezvousLock;
314	/** @} */
315
316	#if HC_ARCH_BITS == 32
317	uint32_t u32Alignment; /*< Alignment padding. /
318	#endif
319
320	/** Buffer for storing the standard assertion message for a ring-0 assertion.
321	* Used for saving the assertion message text for the release log and guru
322	* meditation dump. */
323	char szRing0AssertMsg1[512];
324	/** Buffer for storing the custom message for a ring-0 assertion. */
325	char szRing0AssertMsg2[256];
326
327	/** Number of VMMR0_DO_RUN_GC calls. */
328	STAMCOUNTER StatRunRC;
329
330	/** Statistics for each of the RC/R0 return codes.
331	* @{ */
332	STAMCOUNTER StatRZRetNormal;
333	STAMCOUNTER StatRZRetInterrupt;
334	STAMCOUNTER StatRZRetInterruptHyper;
335	STAMCOUNTER StatRZRetGuestTrap;
336	STAMCOUNTER StatRZRetRingSwitch;
337	STAMCOUNTER StatRZRetRingSwitchInt;
338	STAMCOUNTER StatRZRetStaleSelector;
339	STAMCOUNTER StatRZRetIRETTrap;
340	STAMCOUNTER StatRZRetEmulate;
341	STAMCOUNTER StatRZRetIOBlockEmulate;
342	STAMCOUNTER StatRZRetPatchEmulate;
343	STAMCOUNTER StatRZRetIORead;
344	STAMCOUNTER StatRZRetIOWrite;
345	STAMCOUNTER StatRZRetMMIORead;
346	STAMCOUNTER StatRZRetMMIOWrite;
347	STAMCOUNTER StatRZRetMMIOPatchRead;
348	STAMCOUNTER StatRZRetMMIOPatchWrite;
349	STAMCOUNTER StatRZRetMMIOReadWrite;
350	STAMCOUNTER StatRZRetMSRRead;
351	STAMCOUNTER StatRZRetMSRWrite;
352	STAMCOUNTER StatRZRetLDTFault;
353	STAMCOUNTER StatRZRetGDTFault;
354	STAMCOUNTER StatRZRetIDTFault;
355	STAMCOUNTER StatRZRetTSSFault;
356	STAMCOUNTER StatRZRetCSAMTask;
357	STAMCOUNTER StatRZRetSyncCR3;
358	STAMCOUNTER StatRZRetMisc;
359	STAMCOUNTER StatRZRetPatchInt3;
360	STAMCOUNTER StatRZRetPatchPF;
361	STAMCOUNTER StatRZRetPatchGP;
362	STAMCOUNTER StatRZRetPatchIretIRQ;
363	STAMCOUNTER StatRZRetRescheduleREM;
364	STAMCOUNTER StatRZRetToR3;
365	STAMCOUNTER StatRZRetToR3Unknown;
366	STAMCOUNTER StatRZRetToR3TMVirt;
367	STAMCOUNTER StatRZRetToR3HandyPages;
368	STAMCOUNTER StatRZRetToR3PDMQueues;
369	STAMCOUNTER StatRZRetToR3Rendezvous;
370	STAMCOUNTER StatRZRetToR3Timer;
371	STAMCOUNTER StatRZRetToR3DMA;
372	STAMCOUNTER StatRZRetToR3CritSect;
373	STAMCOUNTER StatRZRetTimerPending;
374	STAMCOUNTER StatRZRetInterruptPending;
375	STAMCOUNTER StatRZRetCallRing3;
376	STAMCOUNTER StatRZRetPATMDuplicateFn;
377	STAMCOUNTER StatRZRetPGMChangeMode;
378	STAMCOUNTER StatRZRetPendingRequest;
379	STAMCOUNTER StatRZRetPGMFlushPending;
380	STAMCOUNTER StatRZRetPatchTPR;
381	STAMCOUNTER StatRZCallPDMCritSectEnter;
382	STAMCOUNTER StatRZCallPDMLock;
383	STAMCOUNTER StatRZCallLogFlush;
384	STAMCOUNTER StatRZCallPGMPoolGrow;
385	STAMCOUNTER StatRZCallPGMMapChunk;
386	STAMCOUNTER StatRZCallPGMAllocHandy;
387	STAMCOUNTER StatRZCallRemReplay;
388	STAMCOUNTER StatRZCallVMSetError;
389	STAMCOUNTER StatRZCallVMSetRuntimeError;
390	STAMCOUNTER StatRZCallPGMLock;
391	/** @} */
392	} VMM;
393	/** Pointer to VMM. */
394	typedef VMM *PVMM;
395
396
397	/**
398	* VMMCPU Data (part of VMCPU)
399	*/
400	typedef struct VMMCPU
401	{
402	/** Offset to the VMCPU structure.
403	* See VMM2VMCPU(). */
404	int32_t offVMCPU;
405
406	/** The last RC/R0 return code. */
407	int32_t iLastGZRc;
408
409	/** VMM stack, pointer to the top of the stack in R3.
410	* Stack is allocated from the hypervisor heap and is page aligned
411	* and always writable in RC. */
412	R3PTRTYPE(uint8_t *) pbEMTStackR3;
413	/** Pointer to the bottom of the stack - needed for doing relocations. */
414	RCPTRTYPE(uint8_t *) pbEMTStackRC;
415	/** Pointer to the bottom of the stack - needed for doing relocations. */
416	RCPTRTYPE(uint8_t *) pbEMTStackBottomRC;
417
418	/** Pointer to the R0 logger instance - R3 Ptr.
419	* This is NULL if logging is disabled. */
420	R3PTRTYPE(PVMMR0LOGGER) pR0LoggerR3;
421	/** Pointer to the R0 logger instance - R0 Ptr.
422	* This is NULL if logging is disabled. */
423	R0PTRTYPE(PVMMR0LOGGER) pR0LoggerR0;
424
425	/** Thread context switching hook (ring-0). */
426	RTTHREADCTXHOOK hCtxHook;
427
428	/** @name Rendezvous
429	* @{ */
430	/** Whether the EMT is executing a rendezvous right now. For detecting
431	* attempts at recursive rendezvous. */
432	bool volatile fInRendezvous;
433	bool afPadding[HC_ARCH_BITS == 32 ? 3+4 : 7+8];
434	/** @} */
435
436	/** @name Raw-mode context tracing data.
437	* @{ */
438	SUPDRVTRACERUSRCTX TracerCtx;
439	/** @} */
440
441	/** Alignment padding, making sure u64CallRing3Arg is nicely aligned. */
442	uint32_t au32Padding1[3];
443
444	/** @name Call Ring-3
445	* Formerly known as host calls.
446	* @{ */
447	/** The disable counter. */
448	uint32_t cCallRing3Disabled;
449	/** The pending operation. */
450	VMMCALLRING3 enmCallRing3Operation;
451	/** The result of the last operation. */
452	int32_t rcCallRing3;
453	/** The argument to the operation. */
454	uint64_t u64CallRing3Arg;
455	/** The Ring-0 notification callback. */
456	R0PTRTYPE(PFNVMMR0CALLRING3NOTIFICATION) pfnCallRing3CallbackR0;
457	/** The Ring-0 notification callback user argument. */
458	R0PTRTYPE(void *) pvCallRing3CallbackUserR0;
459	/** The Ring-0 jmp buffer.
460	* @remarks The size of this type isn't stable in assembly, so don't put
461	* anything that needs to be accessed from assembly after it. */
462	VMMR0JMPBUF CallRing3JmpBufR0;
463	/** @} */
464	} VMMCPU;
465	AssertCompileMemberAlignment(VMMCPU, TracerCtx, 8);
466	/** Pointer to VMMCPU. */
467	typedef VMMCPU *PVMMCPU;
468
469
470	/**
471	* The VMMRCEntry() codes.
472	*/
473	typedef enum VMMRCOPERATION
474	{
475	/** Do GC module init. */
476	VMMRC_DO_VMMRC_INIT = 1,
477
478	/** The first Trap testcase. */
479	VMMRC_DO_TESTCASE_TRAP_FIRST = 0x0dead000,
480	/** Trap 0 testcases, uArg selects the variation. */
481	VMMRC_DO_TESTCASE_TRAP_0 = VMMRC_DO_TESTCASE_TRAP_FIRST,
482	/** Trap 1 testcases, uArg selects the variation. */
483	VMMRC_DO_TESTCASE_TRAP_1,
484	/** Trap 2 testcases, uArg selects the variation. */
485	VMMRC_DO_TESTCASE_TRAP_2,
486	/** Trap 3 testcases, uArg selects the variation. */
487	VMMRC_DO_TESTCASE_TRAP_3,
488	/** Trap 4 testcases, uArg selects the variation. */
489	VMMRC_DO_TESTCASE_TRAP_4,
490	/** Trap 5 testcases, uArg selects the variation. */
491	VMMRC_DO_TESTCASE_TRAP_5,
492	/** Trap 6 testcases, uArg selects the variation. */
493	VMMRC_DO_TESTCASE_TRAP_6,
494	/** Trap 7 testcases, uArg selects the variation. */
495	VMMRC_DO_TESTCASE_TRAP_7,
496	/** Trap 8 testcases, uArg selects the variation. */
497	VMMRC_DO_TESTCASE_TRAP_8,
498	/** Trap 9 testcases, uArg selects the variation. */
499	VMMRC_DO_TESTCASE_TRAP_9,
500	/** Trap 0a testcases, uArg selects the variation. */
501	VMMRC_DO_TESTCASE_TRAP_0A,
502	/** Trap 0b testcases, uArg selects the variation. */
503	VMMRC_DO_TESTCASE_TRAP_0B,
504	/** Trap 0c testcases, uArg selects the variation. */
505	VMMRC_DO_TESTCASE_TRAP_0C,
506	/** Trap 0d testcases, uArg selects the variation. */
507	VMMRC_DO_TESTCASE_TRAP_0D,
508	/** Trap 0e testcases, uArg selects the variation. */
509	VMMRC_DO_TESTCASE_TRAP_0E,
510	/** The last trap testcase (exclusive). */
511	VMMRC_DO_TESTCASE_TRAP_LAST,
512	/** Testcase for checking interrupt forwarding. */
513	VMMRC_DO_TESTCASE_HYPER_INTERRUPT,
514	/** Switching testing and profiling stub. */
515	VMMRC_DO_TESTCASE_NOP,
516	/** Testcase for checking interrupt masking. */
517	VMMRC_DO_TESTCASE_INTERRUPT_MASKING,
518	/** Switching testing and profiling stub. */
519	VMMRC_DO_TESTCASE_HM_NOP,
520
521	/** The usual 32-bit hack. */
522	VMMRC_DO_32_BIT_HACK = 0x7fffffff
523	} VMMRCOPERATION;
524
525
526
527	/**
528	* MSR test result entry.
529	*/
530	typedef struct VMMTESTMSRENTRY
531	{
532	/** The MSR number, including padding.
533	* Set to UINT64_MAX if invalid MSR. */
534	uint64_t uMsr;
535	/** The register value. */
536	uint64_t uValue;
537	} VMMTESTMSRENTRY;
538	/** Pointer to an MSR test result entry. */
539	typedef VMMTESTMSRENTRY *PVMMTESTMSRENTRY;
540
541
542
543	RT_C_DECLS_BEGIN
544
545	int vmmInitFormatTypes(void);
546	void vmmTermFormatTypes(void);
547	uint32_t vmmGetBuildType(void);
548
549	#ifdef IN_RING3
550	int vmmR3SwitcherInit(PVM pVM);
551	void vmmR3SwitcherRelocate(PVM pVM, RTGCINTPTR offDelta);
552	#endif /* IN_RING3 */
553
554	#ifdef IN_RING0
555	/**
556	* World switcher assembly routine.
557	* It will call VMMRCEntry().
558	*
559	* @returns return code from VMMRCEntry().
560	* @param pVM The cross context VM structure.
561	* @param uArg See VMMRCEntry().
562	* @internal
563	*/
564	DECLASM(int) vmmR0WorldSwitch(PVM pVM, unsigned uArg);
565
566	/**
567	* Callback function for vmmR0CallRing3SetJmp.
568	*
569	* @returns VBox status code.
570	* @param pVM The cross context VM structure.
571	*/
572	typedef DECLCALLBACK(int) FNVMMR0SETJMP(PVM pVM, PVMCPU pVCpu);
573	/** Pointer to FNVMMR0SETJMP(). */
574	typedef FNVMMR0SETJMP *PFNVMMR0SETJMP;
575
576	/**
577	* The setjmp variant used for calling Ring-3.
578	*
579	* This differs from the normal setjmp in that it will resume VMMRZCallRing3 if we're
580	* in the middle of a ring-3 call. Another differences is the function pointer and
581	* argument. This has to do with resuming code and the stack frame of the caller.
582	*
583	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
584	* @param pJmpBuf The jmp_buf to set.
585	* @param pfn The function to be called when not resuming.
586	* @param pVM The cross context VM structure.
587	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
588	*/
589	DECLASM(int) vmmR0CallRing3SetJmp(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP pfn, PVM pVM, PVMCPU pVCpu);
590
591	/**
592	* Callback function for vmmR0CallRing3SetJmpEx.
593	*
594	* @returns VBox status code.
595	* @param pvUser The user argument.
596	*/
597	typedef DECLCALLBACK(int) FNVMMR0SETJMPEX(void *pvUser);
598	/** Pointer to FNVMMR0SETJMP(). */
599	typedef FNVMMR0SETJMPEX *PFNVMMR0SETJMPEX;
600
601	/**
602	* Same as vmmR0CallRing3SetJmp except for the function signature.
603	*
604	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
605	* @param pJmpBuf The jmp_buf to set.
606	* @param pfn The function to be called when not resuming.
607	* @param pvUser The argument of that function.
608	*/
609	DECLASM(int) vmmR0CallRing3SetJmpEx(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMPEX pfn, void *pvUser);
610
611
612	/**
613	* Worker for VMMRZCallRing3.
614	* This will save the stack and registers.
615	*
616	* @returns rc.
617	* @param pJmpBuf Pointer to the jump buffer.
618	* @param rc The return code.
619	*/
620	DECLASM(int) vmmR0CallRing3LongJmp(PVMMR0JMPBUF pJmpBuf, int rc);
621
622	/**
623	* Internal R0 logger worker: Logger wrapper.
624	*/
625	VMMR0DECL(void) vmmR0LoggerWrapper(const char *pszFormat, ...);
626
627	/**
628	* Internal R0 logger worker: Flush logger.
629	*
630	* @param pLogger The logger instance to flush.
631	* @remark This function must be exported!
632	*/
633	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger);
634
635	/**
636	* Internal R0 logger worker: Custom prefix.
637	*
638	* @returns Number of chars written.
639	*
640	* @param pLogger The logger instance.
641	* @param pchBuf The output buffer.
642	* @param cchBuf The size of the buffer.
643	* @param pvUser User argument (ignored).
644	*/
645	VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser);
646
647	# ifdef VBOX_WITH_TRIPLE_FAULT_HACK
648	int vmmR0TripleFaultHackInit(void);
649	void vmmR0TripleFaultHackTerm(void);
650	# endif
651
652	#endif /* IN_RING0 */
653	#ifdef IN_RC
654
655	/**
656	* Internal GC logger worker: Logger wrapper.
657	*/
658	VMMRCDECL(void) vmmGCLoggerWrapper(const char *pszFormat, ...);
659
660	/**
661	* Internal GC release logger worker: Logger wrapper.
662	*/
663	VMMRCDECL(void) vmmGCRelLoggerWrapper(const char *pszFormat, ...);
664
665	/**
666	* Internal GC logger worker: Flush logger.
667	*
668	* @returns VINF_SUCCESS.
669	* @param pLogger The logger instance to flush.
670	* @remark This function must be exported!
671	*/
672	VMMRCDECL(int) vmmGCLoggerFlush(PRTLOGGERRC pLogger);
673
674	/** @name Trap testcases and related labels.
675	* @{ */
676	DECLASM(void) vmmGCEnableWP(void);
677	DECLASM(void) vmmGCDisableWP(void);
678	DECLASM(int) vmmGCTestTrap3(void);
679	DECLASM(int) vmmGCTestTrap8(void);
680	DECLASM(int) vmmGCTestTrap0d(void);
681	DECLASM(int) vmmGCTestTrap0e(void);
682	DECLASM(int) vmmGCTestTrap0e_FaultEIP(void); /*< a label /
683	DECLASM(int) vmmGCTestTrap0e_ResumeEIP(void); /*< a label /
684	/** @} */
685
686	#endif /* IN_RC */
687
688	RT_C_DECLS_END
689
690	/** @} */
691
692	#endif

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source: vbox/trunk/src/VBox/VMM/include/VMMInternal.h@ 58944

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