VMMInternal.h@ 78003

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1	/* $Id: VMMInternal.h 76585 2019-01-01 06:31:29Z vboxsync $ */
2	/** @file
3	* VMM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2019 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 defined(RT_OS_DARWIN) && HC_ARCH_BITS == 32
35	# error "32-bit darwin is no longer supported. Go back to 4.3 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	* Converts a VMM pointer into a VM pointer.
70	* @returns Pointer to the VM structure the VMM is part of.
71	* @param pVMM Pointer to VMM instance data.
72	*/
73	#define VMM2VM(pVMM) ( (PVM)((char*)pVMM - pVMM->offVM) )
74
75
76	/**
77	* Switcher function, HC to RC.
78	*
79	* @param pVM The cross context VM structure.
80	* @returns Return code indicating the action to take.
81	*/
82	typedef DECLASMTYPE(int) FNVMMSWITCHERHC(PVM pVM);
83	/** Pointer to switcher function. */
84	typedef FNVMMSWITCHERHC *PFNVMMSWITCHERHC;
85
86	/**
87	* Switcher function, RC to HC.
88	*
89	* @param rc VBox status code.
90	*/
91	typedef DECLASMTYPE(void) FNVMMSWITCHERRC(int rc);
92	/** Pointer to switcher function. */
93	typedef FNVMMSWITCHERRC *PFNVMMSWITCHERRC;
94
95
96	/**
97	* The ring-0 logger instance wrapper.
98	*
99	* We need to be able to find the VM handle from the logger instance, so we wrap
100	* it in this structure.
101	*/
102	typedef struct VMMR0LOGGER
103	{
104	/** Pointer to Pointer to the VM. */
105	R0PTRTYPE(PVM) pVM;
106	/** Size of the allocated logger instance (Logger). */
107	uint32_t cbLogger;
108	/** Flag indicating whether we've create the logger Ring-0 instance yet. */
109	bool fCreated;
110	/** Flag indicating whether we've disabled flushing (world switch) or not. */
111	bool fFlushingDisabled;
112	/** Flag indicating whether we've registered the instance already. */
113	bool fRegistered;
114	bool a8Alignment;
115	/** The CPU ID. */
116	VMCPUID idCpu;
117	#if HC_ARCH_BITS == 64
118	uint32_t u32Alignment;
119	#endif
120	/** The ring-0 logger instance. This extends beyond the size. */
121	RTLOGGER Logger;
122	} VMMR0LOGGER;
123	/** Pointer to a ring-0 logger instance wrapper. */
124	typedef VMMR0LOGGER *PVMMR0LOGGER;
125
126
127	/**
128	* Jump buffer for the setjmp/longjmp like constructs used to
129	* quickly 'call' back into Ring-3.
130	*/
131	typedef struct VMMR0JMPBUF
132	{
133	/** Traditional jmp_buf stuff
134	* @{ */
135	#if HC_ARCH_BITS == 32
136	uint32_t ebx;
137	uint32_t esi;
138	uint32_t edi;
139	uint32_t ebp;
140	uint32_t esp;
141	uint32_t eip;
142	uint32_t eflags;
143	#endif
144	#if HC_ARCH_BITS == 64
145	uint64_t rbx;
146	# ifdef RT_OS_WINDOWS
147	uint64_t rsi;
148	uint64_t rdi;
149	# endif
150	uint64_t rbp;
151	uint64_t r12;
152	uint64_t r13;
153	uint64_t r14;
154	uint64_t r15;
155	uint64_t rsp;
156	uint64_t rip;
157	# ifdef RT_OS_WINDOWS
158	uint128_t xmm6;
159	uint128_t xmm7;
160	uint128_t xmm8;
161	uint128_t xmm9;
162	uint128_t xmm10;
163	uint128_t xmm11;
164	uint128_t xmm12;
165	uint128_t xmm13;
166	uint128_t xmm14;
167	uint128_t xmm15;
168	# endif
169	uint64_t rflags;
170	#endif
171	/** @} */
172
173	/** Flag that indicates that we've done a ring-3 call. */
174	bool fInRing3Call;
175	/** The number of bytes we've saved. */
176	uint32_t cbSavedStack;
177	/** Pointer to the buffer used to save the stack.
178	* This is assumed to be 8KB. */
179	RTR0PTR pvSavedStack;
180	/** Esp we we match against esp on resume to make sure the stack wasn't relocated. */
181	RTHCUINTREG SpCheck;
182	/** The esp we should resume execution with after the restore. */
183	RTHCUINTREG SpResume;
184	/** ESP/RSP at the time of the jump to ring 3. */
185	RTHCUINTREG SavedEsp;
186	/** EBP/RBP at the time of the jump to ring 3. */
187	RTHCUINTREG SavedEbp;
188	/** EIP/RIP within vmmR0CallRing3LongJmp for assisting unwinding. */
189	RTHCUINTREG SavedEipForUnwind;
190	/** Unwind: The vmmR0CallRing3SetJmp return address value. */
191	RTHCUINTREG UnwindRetPcValue;
192	/** Unwind: The vmmR0CallRing3SetJmp return address stack location. */
193	RTHCUINTREG UnwindRetPcLocation;
194	#if HC_ARCH_BITS == 32
195	/** Alignment padding. */
196	uint32_t uPadding;
197	#endif
198
199	/** Stats: Max amount of stack used. */
200	uint32_t cbUsedMax;
201	/** Stats: Average stack usage. (Avg = cbUsedTotal / cUsedTotal) */
202	uint32_t cbUsedAvg;
203	/** Stats: Total amount of stack used. */
204	uint64_t cbUsedTotal;
205	/** Stats: Number of stack usages. */
206	uint64_t cUsedTotal;
207	} VMMR0JMPBUF;
208	/** Pointer to a ring-0 jump buffer. */
209	typedef VMMR0JMPBUF *PVMMR0JMPBUF;
210
211
212	/**
213	* VMM Data (part of VM)
214	*/
215	typedef struct VMM
216	{
217	/** Offset to the VM structure.
218	* See VMM2VM(). */
219	RTINT offVM;
220
221	/** @name World Switcher and Related
222	* @{
223	*/
224	/** Size of the core code. */
225	RTUINT cbCoreCode;
226	/** Physical address of core code. */
227	RTHCPHYS HCPhysCoreCode;
228	/** Pointer to core code ring-3 mapping - contiguous memory.
229	* At present this only means the context switcher code. */
230	RTR3PTR pvCoreCodeR3;
231	/** Pointer to core code ring-0 mapping - contiguous memory.
232	* At present this only means the context switcher code. */
233	RTR0PTR pvCoreCodeR0;
234	/** Pointer to core code guest context mapping. */
235	RTRCPTR pvCoreCodeRC;
236	RTRCPTR pRCPadding0; /*< Alignment padding. /
237	#ifdef VBOX_WITH_NMI
238	/** The guest context address of the APIC (host) mapping. */
239	RTRCPTR GCPtrApicBase;
240	RTRCPTR pRCPadding1; /*< Alignment padding. /
241	#endif
242	/** The current switcher.
243	* This will be set before the VMM is fully initialized. */
244	VMMSWITCHER enmSwitcher;
245	/** Array of offsets to the different switchers within the core code. */
246	uint32_t aoffSwitchers[VMMSWITCHER_MAX];
247	uint32_t u32Padding2; /*< Alignment padding. /
248
249	/** Resume Guest Execution. See CPUMGCResumeGuest(). */
250	RTRCPTR pfnCPUMRCResumeGuest;
251	/** Resume Guest Execution in V86 mode. See CPUMGCResumeGuestV86(). */
252	RTRCPTR pfnCPUMRCResumeGuestV86;
253	/** Call Trampoline. See vmmGCCallTrampoline(). */
254	RTRCPTR pfnCallTrampolineRC;
255	/** Guest to host switcher entry point. */
256	RCPTRTYPE(PFNVMMSWITCHERRC) pfnRCToHost;
257	/** Host to guest switcher entry point. */
258	R0PTRTYPE(PFNVMMSWITCHERHC) pfnR0ToRawMode;
259	/** @} */
260
261	/** @name Logging
262	* @{
263	*/
264	/** Size of the allocated logger instance (pRCLoggerRC/pRCLoggerR3). */
265	uint32_t cbRCLogger;
266	/** Pointer to the RC logger instance - RC Ptr.
267	* This is NULL if logging is disabled. */
268	RCPTRTYPE(PRTLOGGERRC) pRCLoggerRC;
269	/** Pointer to the GC logger instance - R3 Ptr.
270	* This is NULL if logging is disabled. */
271	R3PTRTYPE(PRTLOGGERRC) pRCLoggerR3;
272	/** Pointer to the GC release logger instance - R3 Ptr. */
273	R3PTRTYPE(PRTLOGGERRC) pRCRelLoggerR3;
274	/** Pointer to the GC release logger instance - RC Ptr. */
275	RCPTRTYPE(PRTLOGGERRC) pRCRelLoggerRC;
276	/** Size of the allocated release logger instance (pRCRelLoggerRC/pRCRelLoggerR3).
277	* This may differ from cbRCLogger. */
278	uint32_t cbRCRelLogger;
279	/** Whether log flushing has been disabled or not. */
280	bool fRCLoggerFlushingDisabled;
281	bool afAlignment1[5]; /*< Alignment padding. /
282	/** @} */
283
284	/** Whether the stack guard pages have been stationed or not. */
285	bool fStackGuardsStationed;
286	/** Whether we should use the periodic preemption timers. */
287	bool fUsePeriodicPreemptionTimers;
288
289	/** The EMT yield timer. */
290	PTMTIMERR3 pYieldTimer;
291	/** The period to the next timeout when suspended or stopped.
292	* This is 0 when running. */
293	uint32_t cYieldResumeMillies;
294	/** The EMT yield timer interval (milliseconds). */
295	uint32_t cYieldEveryMillies;
296	/** The timestamp of the previous yield. (nano) */
297	uint64_t u64LastYield;
298
299	/** @name EMT Rendezvous
300	* @{ */
301	/** Semaphore to wait on upon entering ordered execution. */
302	R3PTRTYPE(PRTSEMEVENT) pahEvtRendezvousEnterOrdered;
303	/** Semaphore to wait on upon entering for one-by-one execution. */
304	RTSEMEVENT hEvtRendezvousEnterOneByOne;
305	/** Semaphore to wait on upon entering for all-at-once execution. */
306	RTSEMEVENTMULTI hEvtMulRendezvousEnterAllAtOnce;
307	/** Semaphore to wait on when done. */
308	RTSEMEVENTMULTI hEvtMulRendezvousDone;
309	/** Semaphore the VMMR3EmtRendezvous caller waits on at the end. */
310	RTSEMEVENT hEvtRendezvousDoneCaller;
311	/** Semaphore to wait on upon recursing. */
312	RTSEMEVENTMULTI hEvtMulRendezvousRecursionPush;
313	/** Semaphore to wait on after done with recursion (caller restoring state). */
314	RTSEMEVENTMULTI hEvtMulRendezvousRecursionPop;
315	/** Semaphore the initiator waits on while the EMTs are getting into position
316	* on hEvtMulRendezvousRecursionPush. */
317	RTSEMEVENT hEvtRendezvousRecursionPushCaller;
318	/** Semaphore the initiator waits on while the EMTs sitting on
319	* hEvtMulRendezvousRecursionPop wakes up and leave. */
320	RTSEMEVENT hEvtRendezvousRecursionPopCaller;
321	/** Callback. */
322	R3PTRTYPE(PFNVMMEMTRENDEZVOUS) volatile pfnRendezvous;
323	/** The user argument for the callback. */
324	RTR3PTR volatile pvRendezvousUser;
325	/** Flags. */
326	volatile uint32_t fRendezvousFlags;
327	/** The number of EMTs that has entered. */
328	volatile uint32_t cRendezvousEmtsEntered;
329	/** The number of EMTs that has done their job. */
330	volatile uint32_t cRendezvousEmtsDone;
331	/** The number of EMTs that has returned. */
332	volatile uint32_t cRendezvousEmtsReturned;
333	/** The status code. */
334	volatile int32_t i32RendezvousStatus;
335	/** Spin lock. */
336	volatile uint32_t u32RendezvousLock;
337	/** The recursion depth. */
338	volatile uint32_t cRendezvousRecursions;
339	/** The number of EMTs that have entered the recursion routine. */
340	volatile uint32_t cRendezvousEmtsRecursingPush;
341	/** The number of EMTs that have leaft the recursion routine. */
342	volatile uint32_t cRendezvousEmtsRecursingPop;
343	/** Triggers rendezvous recursion in the other threads. */
344	volatile bool fRendezvousRecursion;
345
346	/** @} */
347
348	/** RTThreadPreemptIsPendingTrusty() result, set by vmmR0InitVM() for
349	* release logging purposes. */
350	bool fIsPreemptPendingApiTrusty : 1;
351	/** The RTThreadPreemptIsPossible() result, set by vmmR0InitVM() for
352	* release logging purposes. */
353	bool fIsPreemptPossible : 1;
354
355	bool afAlignment2[HC_ARCH_BITS == 32 ? 6 : 2]; /*< Alignment padding. /
356
357	/** Buffer for storing the standard assertion message for a ring-0 assertion.
358	* Used for saving the assertion message text for the release log and guru
359	* meditation dump. */
360	char szRing0AssertMsg1[512];
361	/** Buffer for storing the custom message for a ring-0 assertion. */
362	char szRing0AssertMsg2[256];
363
364	/** Number of VMMR0_DO_RUN_GC calls. */
365	STAMCOUNTER StatRunRC;
366
367	/** Statistics for each of the RC/R0 return codes.
368	* @{ */
369	STAMCOUNTER StatRZRetNormal;
370	STAMCOUNTER StatRZRetInterrupt;
371	STAMCOUNTER StatRZRetInterruptHyper;
372	STAMCOUNTER StatRZRetGuestTrap;
373	STAMCOUNTER StatRZRetRingSwitch;
374	STAMCOUNTER StatRZRetRingSwitchInt;
375	STAMCOUNTER StatRZRetStaleSelector;
376	STAMCOUNTER StatRZRetIRETTrap;
377	STAMCOUNTER StatRZRetEmulate;
378	STAMCOUNTER StatRZRetPatchEmulate;
379	STAMCOUNTER StatRZRetIORead;
380	STAMCOUNTER StatRZRetIOWrite;
381	STAMCOUNTER StatRZRetIOCommitWrite;
382	STAMCOUNTER StatRZRetMMIORead;
383	STAMCOUNTER StatRZRetMMIOWrite;
384	STAMCOUNTER StatRZRetMMIOCommitWrite;
385	STAMCOUNTER StatRZRetMMIOPatchRead;
386	STAMCOUNTER StatRZRetMMIOPatchWrite;
387	STAMCOUNTER StatRZRetMMIOReadWrite;
388	STAMCOUNTER StatRZRetMSRRead;
389	STAMCOUNTER StatRZRetMSRWrite;
390	STAMCOUNTER StatRZRetLDTFault;
391	STAMCOUNTER StatRZRetGDTFault;
392	STAMCOUNTER StatRZRetIDTFault;
393	STAMCOUNTER StatRZRetTSSFault;
394	STAMCOUNTER StatRZRetCSAMTask;
395	STAMCOUNTER StatRZRetSyncCR3;
396	STAMCOUNTER StatRZRetMisc;
397	STAMCOUNTER StatRZRetPatchInt3;
398	STAMCOUNTER StatRZRetPatchPF;
399	STAMCOUNTER StatRZRetPatchGP;
400	STAMCOUNTER StatRZRetPatchIretIRQ;
401	STAMCOUNTER StatRZRetRescheduleREM;
402	STAMCOUNTER StatRZRetToR3Total;
403	STAMCOUNTER StatRZRetToR3FF;
404	STAMCOUNTER StatRZRetToR3Unknown;
405	STAMCOUNTER StatRZRetToR3TMVirt;
406	STAMCOUNTER StatRZRetToR3HandyPages;
407	STAMCOUNTER StatRZRetToR3PDMQueues;
408	STAMCOUNTER StatRZRetToR3Rendezvous;
409	STAMCOUNTER StatRZRetToR3Timer;
410	STAMCOUNTER StatRZRetToR3DMA;
411	STAMCOUNTER StatRZRetToR3CritSect;
412	STAMCOUNTER StatRZRetToR3Iem;
413	STAMCOUNTER StatRZRetToR3Iom;
414	STAMCOUNTER StatRZRetTimerPending;
415	STAMCOUNTER StatRZRetInterruptPending;
416	STAMCOUNTER StatRZRetCallRing3;
417	STAMCOUNTER StatRZRetPATMDuplicateFn;
418	STAMCOUNTER StatRZRetPGMChangeMode;
419	STAMCOUNTER StatRZRetPendingRequest;
420	STAMCOUNTER StatRZRetPGMFlushPending;
421	STAMCOUNTER StatRZRetPatchTPR;
422	STAMCOUNTER StatRZCallPDMCritSectEnter;
423	STAMCOUNTER StatRZCallPDMLock;
424	STAMCOUNTER StatRZCallLogFlush;
425	STAMCOUNTER StatRZCallPGMPoolGrow;
426	STAMCOUNTER StatRZCallPGMMapChunk;
427	STAMCOUNTER StatRZCallPGMAllocHandy;
428	STAMCOUNTER StatRZCallRemReplay;
429	STAMCOUNTER StatRZCallVMSetError;
430	STAMCOUNTER StatRZCallVMSetRuntimeError;
431	STAMCOUNTER StatRZCallPGMLock;
432	/** @} */
433	} VMM;
434	/** Pointer to VMM. */
435	typedef VMM *PVMM;
436
437
438	/**
439	* VMMCPU Data (part of VMCPU)
440	*/
441	typedef struct VMMCPU
442	{
443	/** Offset to the VMCPU structure.
444	* See VMM2VMCPU(). */
445	int32_t offVMCPU;
446
447	/** The last RC/R0 return code. */
448	int32_t iLastGZRc;
449
450	/** VMM stack, pointer to the top of the stack in R3.
451	* Stack is allocated from the hypervisor heap and is page aligned
452	* and always writable in RC. */
453	R3PTRTYPE(uint8_t *) pbEMTStackR3;
454	/** Pointer to the bottom of the stack - needed for doing relocations. */
455	RCPTRTYPE(uint8_t *) pbEMTStackRC;
456	/** Pointer to the bottom of the stack - needed for doing relocations. */
457	RCPTRTYPE(uint8_t *) pbEMTStackBottomRC;
458
459	/** Pointer to the R0 logger instance - R3 Ptr.
460	* This is NULL if logging is disabled. */
461	R3PTRTYPE(PVMMR0LOGGER) pR0LoggerR3;
462	/** Pointer to the R0 logger instance - R0 Ptr.
463	* This is NULL if logging is disabled. */
464	R0PTRTYPE(PVMMR0LOGGER) pR0LoggerR0;
465
466	/** Pointer to the R0 release logger instance - R3 Ptr.
467	* This is NULL if logging is disabled. */
468	R3PTRTYPE(PVMMR0LOGGER) pR0RelLoggerR3;
469	/** Pointer to the R0 release instance - R0 Ptr.
470	* This is NULL if logging is disabled. */
471	R0PTRTYPE(PVMMR0LOGGER) pR0RelLoggerR0;
472
473	/** Thread context switching hook (ring-0). */
474	RTTHREADCTXHOOK hCtxHook;
475
476	/** @name Rendezvous
477	* @{ */
478	/** Whether the EMT is executing a rendezvous right now. For detecting
479	* attempts at recursive rendezvous. */
480	bool volatile fInRendezvous;
481	bool afPadding[HC_ARCH_BITS == 32 ? 2 : 6+4];
482	/** @} */
483
484	/** Whether we can HLT in VMMR0 rather than having to return to EM.
485	* Updated by vmR3SetHaltMethodU(). */
486	bool fMayHaltInRing0;
487	/** The minimum delta for which we can HLT in ring-0 for.
488	* The deadlines we can calculate are from TM, so, if it's too close
489	* we should just return to ring-3 and run the timer wheel, no point
490	* in spinning in ring-0.
491	* Updated by vmR3SetHaltMethodU(). */
492	uint32_t cNsSpinBlockThreshold;
493	/** Number of ring-0 halts (used for depreciating following values). */
494	uint32_t cR0Halts;
495	/** Number of ring-0 halts succeeding (VINF_SUCCESS) recently. */
496	uint32_t cR0HaltsSucceeded;
497	/** Number of ring-0 halts failing (VINF_EM_HALT) recently. */
498	uint32_t cR0HaltsToRing3;
499	/** Padding */
500	uint32_t u32Padding0;
501
502	/** @name Raw-mode context tracing data.
503	* @{ */
504	SUPDRVTRACERUSRCTX TracerCtx;
505	/** @} */
506
507	/** Alignment padding, making sure u64CallRing3Arg is nicely aligned. */
508	uint32_t au32Padding1[3];
509
510	/** @name Call Ring-3
511	* Formerly known as host calls.
512	* @{ */
513	/** The disable counter. */
514	uint32_t cCallRing3Disabled;
515	/** The pending operation. */
516	VMMCALLRING3 enmCallRing3Operation;
517	/** The result of the last operation. */
518	int32_t rcCallRing3;
519	/** The argument to the operation. */
520	uint64_t u64CallRing3Arg;
521	/** The Ring-0 notification callback. */
522	R0PTRTYPE(PFNVMMR0CALLRING3NOTIFICATION) pfnCallRing3CallbackR0;
523	/** The Ring-0 notification callback user argument. */
524	R0PTRTYPE(void *) pvCallRing3CallbackUserR0;
525	/** The Ring-0 jmp buffer.
526	* @remarks The size of this type isn't stable in assembly, so don't put
527	* anything that needs to be accessed from assembly after it. */
528	VMMR0JMPBUF CallRing3JmpBufR0;
529	/** @} */
530
531	STAMPROFILE StatR0HaltBlock;
532	STAMPROFILE StatR0HaltBlockOnTime;
533	STAMPROFILE StatR0HaltBlockOverslept;
534	STAMPROFILE StatR0HaltBlockInsomnia;
535	STAMCOUNTER StatR0HaltExec;
536	STAMCOUNTER StatR0HaltExecFromBlock;
537	STAMCOUNTER StatR0HaltExecFromSpin;
538	STAMCOUNTER StatR0HaltToR3FromSpin;
539	} VMMCPU;
540	AssertCompileMemberAlignment(VMMCPU, TracerCtx, 8);
541	/** Pointer to VMMCPU. */
542	typedef VMMCPU *PVMMCPU;
543
544
545	/**
546	* The VMMRCEntry() codes.
547	*/
548	typedef enum VMMRCOPERATION
549	{
550	/** Do GC module init. */
551	VMMRC_DO_VMMRC_INIT = 1,
552
553	/** The first Trap testcase. */
554	VMMRC_DO_TESTCASE_TRAP_FIRST = 0x0dead000,
555	/** Trap 0 testcases, uArg selects the variation. */
556	VMMRC_DO_TESTCASE_TRAP_0 = VMMRC_DO_TESTCASE_TRAP_FIRST,
557	/** Trap 1 testcases, uArg selects the variation. */
558	VMMRC_DO_TESTCASE_TRAP_1,
559	/** Trap 2 testcases, uArg selects the variation. */
560	VMMRC_DO_TESTCASE_TRAP_2,
561	/** Trap 3 testcases, uArg selects the variation. */
562	VMMRC_DO_TESTCASE_TRAP_3,
563	/** Trap 4 testcases, uArg selects the variation. */
564	VMMRC_DO_TESTCASE_TRAP_4,
565	/** Trap 5 testcases, uArg selects the variation. */
566	VMMRC_DO_TESTCASE_TRAP_5,
567	/** Trap 6 testcases, uArg selects the variation. */
568	VMMRC_DO_TESTCASE_TRAP_6,
569	/** Trap 7 testcases, uArg selects the variation. */
570	VMMRC_DO_TESTCASE_TRAP_7,
571	/** Trap 8 testcases, uArg selects the variation. */
572	VMMRC_DO_TESTCASE_TRAP_8,
573	/** Trap 9 testcases, uArg selects the variation. */
574	VMMRC_DO_TESTCASE_TRAP_9,
575	/** Trap 0a testcases, uArg selects the variation. */
576	VMMRC_DO_TESTCASE_TRAP_0A,
577	/** Trap 0b testcases, uArg selects the variation. */
578	VMMRC_DO_TESTCASE_TRAP_0B,
579	/** Trap 0c testcases, uArg selects the variation. */
580	VMMRC_DO_TESTCASE_TRAP_0C,
581	/** Trap 0d testcases, uArg selects the variation. */
582	VMMRC_DO_TESTCASE_TRAP_0D,
583	/** Trap 0e testcases, uArg selects the variation. */
584	VMMRC_DO_TESTCASE_TRAP_0E,
585	/** The last trap testcase (exclusive). */
586	VMMRC_DO_TESTCASE_TRAP_LAST,
587	/** Testcase for checking interrupt forwarding. */
588	VMMRC_DO_TESTCASE_HYPER_INTERRUPT,
589	/** Switching testing and profiling stub. */
590	VMMRC_DO_TESTCASE_NOP,
591	/** Testcase for checking interrupt masking. */
592	VMMRC_DO_TESTCASE_INTERRUPT_MASKING,
593	/** Switching testing and profiling stub. */
594	VMMRC_DO_TESTCASE_HM_NOP,
595
596	/** The usual 32-bit hack. */
597	VMMRC_DO_32_BIT_HACK = 0x7fffffff
598	} VMMRCOPERATION;
599
600
601
602	/**
603	* MSR test result entry.
604	*/
605	typedef struct VMMTESTMSRENTRY
606	{
607	/** The MSR number, including padding.
608	* Set to UINT64_MAX if invalid MSR. */
609	uint64_t uMsr;
610	/** The register value. */
611	uint64_t uValue;
612	} VMMTESTMSRENTRY;
613	/** Pointer to an MSR test result entry. */
614	typedef VMMTESTMSRENTRY *PVMMTESTMSRENTRY;
615
616
617
618	RT_C_DECLS_BEGIN
619
620	int vmmInitFormatTypes(void);
621	void vmmTermFormatTypes(void);
622	uint32_t vmmGetBuildType(void);
623
624	#ifdef IN_RING3
625	int vmmR3SwitcherInit(PVM pVM);
626	void vmmR3SwitcherRelocate(PVM pVM, RTGCINTPTR offDelta);
627	#endif /* IN_RING3 */
628
629	#ifdef IN_RING0
630	/**
631	* World switcher assembly routine.
632	* It will call VMMRCEntry().
633	*
634	* @returns return code from VMMRCEntry().
635	* @param pVM The cross context VM structure.
636	* @param uArg See VMMRCEntry().
637	* @internal
638	*/
639	DECLASM(int) vmmR0WorldSwitch(PVM pVM, unsigned uArg);
640
641	/**
642	* Callback function for vmmR0CallRing3SetJmp.
643	*
644	* @returns VBox status code.
645	* @param pVM The cross context VM structure.
646	*/
647	typedef DECLCALLBACK(int) FNVMMR0SETJMP(PVM pVM, PVMCPU pVCpu);
648	/** Pointer to FNVMMR0SETJMP(). */
649	typedef FNVMMR0SETJMP *PFNVMMR0SETJMP;
650
651	/**
652	* The setjmp variant used for calling Ring-3.
653	*
654	* This differs from the normal setjmp in that it will resume VMMRZCallRing3 if we're
655	* in the middle of a ring-3 call. Another differences is the function pointer and
656	* argument. This has to do with resuming code and the stack frame of the caller.
657	*
658	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
659	* @param pJmpBuf The jmp_buf to set.
660	* @param pfn The function to be called when not resuming.
661	* @param pVM The cross context VM structure.
662	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
663	*/
664	DECLASM(int) vmmR0CallRing3SetJmp(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP pfn, PVM pVM, PVMCPU pVCpu);
665
666
667	/**
668	* Callback function for vmmR0CallRing3SetJmp2.
669	*
670	* @returns VBox status code.
671	* @param pvUser The user argument.
672	*/
673	typedef DECLCALLBACK(int) FNVMMR0SETJMP2(PGVM pGVM, VMCPUID idCpu);
674	/** Pointer to FNVMMR0SETJMP2(). */
675	typedef FNVMMR0SETJMP2 *PFNVMMR0SETJMP2;
676
677	/**
678	* Same as vmmR0CallRing3SetJmp except for the function signature.
679	*
680	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
681	* @param pJmpBuf The jmp_buf to set.
682	* @param pfn The function to be called when not resuming.
683	* @param pGVM The ring-0 VM structure.
684	* @param idCpu The ID of the calling EMT.
685	*/
686	DECLASM(int) vmmR0CallRing3SetJmp2(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP2 pfn, PGVM pGVM, VMCPUID idCpu);
687
688
689	/**
690	* Callback function for vmmR0CallRing3SetJmpEx.
691	*
692	* @returns VBox status code.
693	* @param pvUser The user argument.
694	*/
695	typedef DECLCALLBACK(int) FNVMMR0SETJMPEX(void *pvUser);
696	/** Pointer to FNVMMR0SETJMPEX(). */
697	typedef FNVMMR0SETJMPEX *PFNVMMR0SETJMPEX;
698
699	/**
700	* Same as vmmR0CallRing3SetJmp except for the function signature.
701	*
702	* @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallRing3LongJmp.
703	* @param pJmpBuf The jmp_buf to set.
704	* @param pfn The function to be called when not resuming.
705	* @param pvUser The argument of that function.
706	*/
707	DECLASM(int) vmmR0CallRing3SetJmpEx(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMPEX pfn, void *pvUser);
708
709
710	/**
711	* Worker for VMMRZCallRing3.
712	* This will save the stack and registers.
713	*
714	* @returns rc.
715	* @param pJmpBuf Pointer to the jump buffer.
716	* @param rc The return code.
717	*/
718	DECLASM(int) vmmR0CallRing3LongJmp(PVMMR0JMPBUF pJmpBuf, int rc);
719
720	/**
721	* Internal R0 logger worker: Logger wrapper.
722	*/
723	VMMR0DECL(void) vmmR0LoggerWrapper(const char *pszFormat, ...);
724
725	/**
726	* Internal R0 logger worker: Flush logger.
727	*
728	* @param pLogger The logger instance to flush.
729	* @remark This function must be exported!
730	*/
731	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger);
732
733	/**
734	* Internal R0 logger worker: Custom prefix.
735	*
736	* @returns Number of chars written.
737	*
738	* @param pLogger The logger instance.
739	* @param pchBuf The output buffer.
740	* @param cchBuf The size of the buffer.
741	* @param pvUser User argument (ignored).
742	*/
743	VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser);
744
745	# ifdef VBOX_WITH_TRIPLE_FAULT_HACK
746	int vmmR0TripleFaultHackInit(void);
747	void vmmR0TripleFaultHackTerm(void);
748	# endif
749
750	#endif /* IN_RING0 */
751	#ifdef IN_RC
752
753	/**
754	* Internal GC logger worker: Logger wrapper.
755	*/
756	VMMRCDECL(void) vmmGCLoggerWrapper(const char *pszFormat, ...);
757
758	/**
759	* Internal GC release logger worker: Logger wrapper.
760	*/
761	VMMRCDECL(void) vmmGCRelLoggerWrapper(const char *pszFormat, ...);
762
763	/**
764	* Internal GC logger worker: Flush logger.
765	*
766	* @returns VINF_SUCCESS.
767	* @param pLogger The logger instance to flush.
768	* @remark This function must be exported!
769	*/
770	VMMRCDECL(int) vmmGCLoggerFlush(PRTLOGGERRC pLogger);
771
772	/** @name Trap testcases and related labels.
773	* @{ */
774	DECLASM(void) vmmGCEnableWP(void);
775	DECLASM(void) vmmGCDisableWP(void);
776	DECLASM(int) vmmGCTestTrap3(void);
777	DECLASM(int) vmmGCTestTrap8(void);
778	DECLASM(int) vmmGCTestTrap0d(void);
779	DECLASM(int) vmmGCTestTrap0e(void);
780	DECLASM(int) vmmGCTestTrap0e_FaultEIP(void); /*< a label /
781	DECLASM(int) vmmGCTestTrap0e_ResumeEIP(void); /*< a label /
782	/** @} */
783
784	#endif /* IN_RC */
785
786	RT_C_DECLS_END
787
788	/** @} */
789
790	#endif /* !VMM_INCLUDED_SRC_include_VMMInternal_h */

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source: vbox/trunk/src/VBox/VMM/include/VMMInternal.h@ 78003

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