NEMInternal.h@ 92555

Last change on this file since 92555 was 92555, checked in by vboxsync, 3 years ago
VMM/NEM-linux: Fixed the flushing of stateful exits for larger MMIO operations. bugref:9044
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 26.4 KB

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1	/* $Id: NEMInternal.h 92555 2021-11-22 18:51:43Z vboxsync $ */
2	/** @file
3	* NEM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2018-2020 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_NEMInternal_h
19	#define VMM_INCLUDED_SRC_include_NEMInternal_h
20	#ifndef RT_WITHOUT_PRAGMA_ONCE
21	# pragma once
22	#endif
23
24	#include <VBox/cdefs.h>
25	#include <VBox/types.h>
26	#include <VBox/vmm/nem.h>
27	#include <VBox/vmm/cpum.h> /* For CPUMCPUVENDOR. */
28	#include <VBox/vmm/stam.h>
29	#include <VBox/vmm/vmapi.h>
30	#ifdef RT_OS_WINDOWS
31	#include <iprt/nt/hyperv.h>
32	#include <iprt/critsect.h>
33	#elif defined(RT_OS_DARWIN)
34	# include "VMXInternal.h"
35	#endif
36
37	RT_C_DECLS_BEGIN
38
39
40	/** @defgroup grp_nem_int Internal
41	* @ingroup grp_nem
42	* @internal
43	* @{
44	*/
45
46	#if defined(VBOX_WITH_PGM_NEM_MODE) && !defined(VBOX_WITH_NATIVE_NEM)
47	# error "VBOX_WITH_PGM_NEM_MODE requires VBOX_WITH_NATIVE_NEM to be defined"
48	#endif
49
50
51	#ifdef RT_OS_WINDOWS
52	/*
53	* Windows: Code configuration.
54	*/
55	# ifndef VBOX_WITH_PGM_NEM_MODE
56	# define NEM_WIN_USE_HYPERCALLS_FOR_PAGES
57	#endif
58	//# define NEM_WIN_USE_HYPERCALLS_FOR_REGISTERS /*< Applies to ring-3 code only. Useful for testing VID API. /
59	//# define NEM_WIN_USE_OUR_OWN_RUN_API /*< Applies to ring-3 code only. Useful for testing VID API. /
60	//# define NEM_WIN_WITH_RING0_RUNLOOP /*< Enables the ring-0 runloop. /
61	//# define NEM_WIN_USE_RING0_RUNLOOP_BY_DEFAULT /*< For quickly testing ring-3 API without messing with CFGM. /
62	# if defined(NEM_WIN_USE_OUR_OWN_RUN_API) && !defined(NEM_WIN_USE_HYPERCALLS_FOR_REGISTERS)
63	# error "NEM_WIN_USE_OUR_OWN_RUN_API requires NEM_WIN_USE_HYPERCALLS_FOR_REGISTERS"
64	# endif
65	# if defined(NEM_WIN_USE_OUR_OWN_RUN_API) && !defined(NEM_WIN_USE_HYPERCALLS_FOR_PAGES)
66	# error "NEM_WIN_USE_OUR_OWN_RUN_API requires NEM_WIN_USE_HYPERCALLS_FOR_PAGES"
67	# endif
68	# if defined(NEM_WIN_WITH_RING0_RUNLOOP) && !defined(NEM_WIN_USE_HYPERCALLS_FOR_PAGES)
69	# error "NEM_WIN_WITH_RING0_RUNLOOP requires NEM_WIN_USE_HYPERCALLS_FOR_PAGES"
70	# endif
71	# if defined(VBOX_WITH_PGM_NEM_MODE) && defined(NEM_WIN_USE_HYPERCALLS_FOR_PAGES)
72	# error "VBOX_WITH_PGM_NEM_MODE cannot be used together with NEM_WIN_USE_HYPERCALLS_FOR_PAGES"
73	# endif
74
75	/**
76	* Windows VID I/O control information.
77	*/
78	typedef struct NEMWINIOCTL
79	{
80	/** The I/O control function number. */
81	uint32_t uFunction;
82	uint32_t cbInput;
83	uint32_t cbOutput;
84	} NEMWINIOCTL;
85
86	/** @name Windows: Our two-bit physical page state for PGMPAGE
87	* @{ */
88	# define NEM_WIN_PAGE_STATE_NOT_SET 0
89	# define NEM_WIN_PAGE_STATE_UNMAPPED 1
90	# define NEM_WIN_PAGE_STATE_READABLE 2
91	# define NEM_WIN_PAGE_STATE_WRITABLE 3
92	/** @} */
93
94	/** Windows: Checks if a_GCPhys is subject to the limited A20 gate emulation. */
95	# define NEM_WIN_IS_SUBJECT_TO_A20(a_GCPhys) ((RTGCPHYS)((a_GCPhys) - _1M) < (RTGCPHYS)_64K)
96	/** Windows: Checks if a_GCPhys is relevant to the limited A20 gate emulation. */
97	# define NEM_WIN_IS_RELEVANT_TO_A20(a_GCPhys) \
98	( ((RTGCPHYS)((a_GCPhys) - _1M) < (RTGCPHYS)_64K) \|\| ((RTGCPHYS)(a_GCPhys) < (RTGCPHYS)_64K) )
99
100	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
101	# define NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \| CPUMCTX_EXTRN_INHIBIT_INT \
102	\| CPUMCTX_EXTRN_INHIBIT_NMI )
103	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
104	# define NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
105
106	/** @name Windows: Interrupt window flags (NEM_WIN_INTW_F_XXX).
107	* @{ */
108	# define NEM_WIN_INTW_F_NMI UINT8_C(0x01)
109	# define NEM_WIN_INTW_F_REGULAR UINT8_C(0x02)
110	# define NEM_WIN_INTW_F_PRIO_MASK UINT8_C(0x3c)
111	# define NEM_WIN_INTW_F_PRIO_SHIFT 2
112	/** @} */
113
114	#endif /* RT_OS_WINDOWS */
115
116
117	#ifdef RT_OS_DARWIN
118	/** vCPU ID declaration to avoid dragging in HV headers here. */
119	typedef unsigned hv_vcpuid_t;
120	/** The HV VM memory space ID (ASID). */
121	typedef unsigned hv_vm_space_t;
122
123
124	/** @name Darwin: Our two-bit physical page state for PGMPAGE
125	* @{ */
126	# define NEM_DARWIN_PAGE_STATE_NOT_SET 0
127	# define NEM_DARWIN_PAGE_STATE_UNMAPPED 1
128	# define NEM_DARWIN_PAGE_STATE_READABLE 2
129	# define NEM_DARWIN_PAGE_STATE_WRITABLE 3
130	/** @} */
131
132	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
133	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \| CPUMCTX_EXTRN_INHIBIT_INT \
134	\| CPUMCTX_EXTRN_INHIBIT_NMI )
135	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
136	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
137
138	#endif
139
140
141	/** Trick to make slickedit see the static functions in the template. */
142	#ifndef IN_SLICKEDIT
143	# define NEM_TMPL_STATIC static
144	#else
145	# define NEM_TMPL_STATIC
146	#endif
147
148
149	/**
150	* Generic NEM exit type enumeration for use with EMHistoryAddExit.
151	*
152	* On windows we've got two different set of exit types and they are both jumping
153	* around the place value wise, so EM can use their values.
154	*
155	* @note We only have exit types for exits not covered by EM here.
156	*/
157	typedef enum NEMEXITTYPE
158	{
159	NEMEXITTYPE_INVALID = 0,
160
161	/* Common: */
162	NEMEXITTYPE_INTTERRUPT_WINDOW,
163	NEMEXITTYPE_HALT,
164
165	/* Windows: */
166	NEMEXITTYPE_UNRECOVERABLE_EXCEPTION,
167	NEMEXITTYPE_INVALID_VP_REGISTER_VALUE,
168	NEMEXITTYPE_XCPT_UD,
169	NEMEXITTYPE_XCPT_DB,
170	NEMEXITTYPE_XCPT_BP,
171	NEMEXITTYPE_CANCELED,
172	NEMEXITTYPE_MEMORY_ACCESS,
173
174	/* Linux: */
175	NEMEXITTYPE_INTERNAL_ERROR_EMULATION,
176	NEMEXITTYPE_INTERNAL_ERROR_FATAL,
177	NEMEXITTYPE_INTERRUPTED,
178	NEMEXITTYPE_FAILED_ENTRY,
179
180	/* End of valid types. */
181	NEMEXITTYPE_END
182	} NEMEXITTYPE;
183
184
185	/**
186	* NEM VM Instance data.
187	*/
188	typedef struct NEM
189	{
190	/** NEM_MAGIC. */
191	uint32_t u32Magic;
192
193	/** Set if enabled. */
194	bool fEnabled;
195	/** Set if long mode guests are allowed. */
196	bool fAllow64BitGuests;
197
198	#if defined(RT_OS_LINUX)
199	/** The '/dev/kvm' file descriptor. */
200	int32_t fdKvm;
201	/** The KVM_CREATE_VM file descriptor. */
202	int32_t fdVm;
203
204	/** KVM_GET_VCPU_MMAP_SIZE. */
205	uint32_t cbVCpuMmap;
206	/** KVM_CAP_NR_MEMSLOTS. */
207	uint32_t cMaxMemSlots;
208	/** KVM_CAP_X86_ROBUST_SINGLESTEP. */
209	bool fRobustSingleStep;
210
211	/** Hint where there might be a free slot. */
212	uint16_t idPrevSlot;
213	/** Memory slot ID allocation bitmap. */
214	uint64_t bmSlotIds[_32K / 8 / sizeof(uint64_t)];
215
216	#elif defined(RT_OS_WINDOWS)
217	/** Set if we've created the EMTs. */
218	bool fCreatedEmts : 1;
219	/** WHvRunVpExitReasonX64Cpuid is supported. */
220	bool fExtendedMsrExit : 1;
221	/** WHvRunVpExitReasonX64MsrAccess is supported. */
222	bool fExtendedCpuIdExit : 1;
223	/** WHvRunVpExitReasonException is supported. */
224	bool fExtendedXcptExit : 1;
225	/** Set if we're using the ring-0 API to do the work. */
226	bool fUseRing0Runloop : 1;
227	# ifdef NEM_WIN_WITH_A20
228	/** Set if we've started more than one CPU and cannot mess with A20. */
229	bool fA20Fixed : 1;
230	/** Set if A20 is enabled. */
231	bool fA20Enabled : 1;
232	# endif
233	/** The reported CPU vendor. */
234	CPUMCPUVENDOR enmCpuVendor;
235	/** Cache line flush size as a power of two. */
236	uint8_t cCacheLineFlushShift;
237	/** The result of WHvCapabilityCodeProcessorFeatures. */
238	union
239	{
240	/** 64-bit view. */
241	uint64_t u64;
242	# ifdef _WINHVAPIDEFS_H_
243	/** Interpreed features. */
244	WHV_PROCESSOR_FEATURES u;
245	# endif
246	} uCpuFeatures;
247
248	/** The partition handle. */
249	# ifdef _WINHVAPIDEFS_H_
250	WHV_PARTITION_HANDLE
251	# else
252	RTHCUINTPTR
253	# endif
254	hPartition;
255	/** The device handle for the partition, for use with Vid APIs or direct I/O
256	* controls. */
257	RTR3PTR hPartitionDevice;
258	/** The Hyper-V partition ID. */
259	uint64_t idHvPartition;
260
261	/** Number of currently mapped pages. */
262	uint32_t volatile cMappedPages;
263	# ifndef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
264	/** Max number of pages we dare map at once. */
265	uint32_t cMaxMappedPages;
266	# endif
267	STAMCOUNTER StatMapPage;
268	STAMCOUNTER StatUnmapPage;
269	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
270	STAMCOUNTER StatRemapPage;
271	STAMCOUNTER StatRemapPageFailed;
272	# elif !defined(VBOX_WITH_PGM_NEM_MODE)
273	STAMCOUNTER StatUnmapAllPages;
274	# endif
275	STAMCOUNTER StatMapPageFailed;
276	STAMCOUNTER StatUnmapPageFailed;
277	# ifdef VBOX_WITH_PGM_NEM_MODE
278	STAMPROFILE StatProfMapGpaRange;
279	STAMPROFILE StatProfUnmapGpaRange;
280	# endif
281	# ifndef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
282	STAMPROFILE StatProfMapGpaRangePage;
283	STAMPROFILE StatProfUnmapGpaRangePage;
284	# endif
285
286	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
287	/** Info about the VidGetHvPartitionId I/O control interface. */
288	NEMWINIOCTL IoCtlGetHvPartitionId;
289	/** Info about the VidGetPartitionProperty I/O control interface. */
290	NEMWINIOCTL IoCtlGetPartitionProperty;
291	# endif
292	# ifdef NEM_WIN_WITH_RING0_RUNLOOP
293	/** Info about the VidStartVirtualProcessor I/O control interface. */
294	NEMWINIOCTL IoCtlStartVirtualProcessor;
295	/** Info about the VidStopVirtualProcessor I/O control interface. */
296	NEMWINIOCTL IoCtlStopVirtualProcessor;
297	/** Info about the VidStopVirtualProcessor I/O control interface. */
298	NEMWINIOCTL IoCtlMessageSlotHandleAndGetNext;
299	# endif
300
301	/** Statistics updated by NEMR0UpdateStatistics. */
302	struct
303	{
304	uint64_t cPagesAvailable;
305	uint64_t cPagesInUse;
306	} R0Stats;
307
308	#elif defined(RT_OS_DARWIN)
309	/** Set if we've created the EMTs. */
310	bool fCreatedEmts : 1;
311	/** Set if hv_vm_create() was called successfully. */
312	bool fCreatedVm : 1;
313	/** Set if hv_vm_space_create() was called successfully. */
314	bool fCreatedAsid : 1;
315	/** The ASID for this VM (only valid if fCreatedAsid is true). */
316	hv_vm_space_t uVmAsid;
317	STAMCOUNTER StatMapPage;
318	STAMCOUNTER StatUnmapPage;
319	STAMCOUNTER StatMapPageFailed;
320	STAMCOUNTER StatUnmapPageFailed;
321	#endif /* RT_OS_WINDOWS */
322	} NEM;
323	/** Pointer to NEM VM instance data. */
324	typedef NEM *PNEM;
325
326	/** NEM::u32Magic value. */
327	#define NEM_MAGIC UINT32_C(0x004d454e)
328	/** NEM::u32Magic value after termination. */
329	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
330
331
332	/**
333	* NEM VMCPU Instance data.
334	*/
335	typedef struct NEMCPU
336	{
337	/** NEMCPU_MAGIC. */
338	uint32_t u32Magic;
339	/** Whether \#UD needs to be intercepted and presented to GIM. */
340	bool fGIMTrapXcptUD : 1;
341	/** Whether \#GP needs to be intercept for mesa driver workaround. */
342	bool fTrapXcptGpForLovelyMesaDrv: 1;
343
344	#if defined(RT_OS_LINUX)
345	uint8_t abPadding[3];
346	/** The KVM VCpu file descriptor. */
347	int32_t fdVCpu;
348	/** Pointer to the KVM_RUN data exchange region. */
349	R3PTRTYPE(struct kvm_run *) pRun;
350
351	/** @name Statistics
352	* @{ */
353	STAMCOUNTER StatExitTotal;
354	STAMCOUNTER StatExitIo;
355	STAMCOUNTER StatExitMmio;
356	STAMCOUNTER StatExitSetTpr;
357	STAMCOUNTER StatExitTprAccess;
358	STAMCOUNTER StatExitRdMsr;
359	STAMCOUNTER StatExitWrMsr;
360	STAMCOUNTER StatExitIrqWindowOpen;
361	STAMCOUNTER StatExitHalt;
362	STAMCOUNTER StatExitIntr;
363	STAMCOUNTER StatExitHypercall;
364	STAMCOUNTER StatExitDebug;
365	STAMCOUNTER StatExitBusLock;
366	STAMCOUNTER StatExitInternalErrorEmulation;
367	STAMCOUNTER StatExitInternalErrorFatal;
368	# if 0
369	STAMCOUNTER StatExitCpuId;
370	STAMCOUNTER StatExitUnrecoverable;
371	STAMCOUNTER StatGetMsgTimeout;
372	STAMCOUNTER StatStopCpuSuccess;
373	STAMCOUNTER StatStopCpuPending;
374	STAMCOUNTER StatStopCpuPendingAlerts;
375	STAMCOUNTER StatStopCpuPendingOdd;
376	STAMCOUNTER StatCancelChangedState;
377	STAMCOUNTER StatCancelAlertedThread;
378	# endif
379	STAMCOUNTER StatBreakOnCancel;
380	STAMCOUNTER StatBreakOnFFPre;
381	STAMCOUNTER StatBreakOnFFPost;
382	STAMCOUNTER StatBreakOnStatus;
383	STAMCOUNTER StatFlushExitOnReturn;
384	STAMCOUNTER StatFlushExitOnReturn1Loop;
385	STAMCOUNTER StatFlushExitOnReturn2Loops;
386	STAMCOUNTER StatFlushExitOnReturn3Loops;
387	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
388	STAMCOUNTER StatImportOnDemand;
389	STAMCOUNTER StatImportOnReturn;
390	STAMCOUNTER StatImportOnReturnSkipped;
391	STAMCOUNTER StatImportPendingInterrupt;
392	STAMCOUNTER StatExportPendingInterrupt;
393	STAMCOUNTER StatQueryCpuTick;
394	/** @} */
395
396
397	#elif defined(RT_OS_WINDOWS)
398	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
399	uint8_t fCurrentInterruptWindows;
400	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
401	uint8_t fDesiredInterruptWindows;
402	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
403	bool fLastInterruptShadow : 1;
404	# ifdef NEM_WIN_WITH_RING0_RUNLOOP
405	/** Pending VINF_NEM_FLUSH_TLB. */
406	int32_t rcPending;
407	# else
408	uint32_t uPadding;
409	# endif
410	/** The VID_MSHAGN_F_XXX flags.
411	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
412	uint32_t fHandleAndGetFlags;
413	/** What VidMessageSlotMap returns and is used for passing exit info. */
414	RTR3PTR pvMsgSlotMapping;
415	/** The windows thread handle. */
416	RTR3PTR hNativeThreadHandle;
417	/** Parameters for making Hyper-V hypercalls. */
418	union
419	{
420	uint8_t ab[64];
421	/** Arguments for NEMR0MapPages (HvCallMapGpaPages). */
422	struct
423	{
424	RTGCPHYS GCPhysSrc;
425	RTGCPHYS GCPhysDst; /*< Same as GCPhysSrc except maybe when the A20 gate is disabled. /
426	uint32_t cPages;
427	HV_MAP_GPA_FLAGS fFlags;
428	} MapPages;
429	/** Arguments for NEMR0UnmapPages (HvCallUnmapGpaPages). */
430	struct
431	{
432	RTGCPHYS GCPhys;
433	uint32_t cPages;
434	} UnmapPages;
435	/** Result from NEMR0QueryCpuTick. */
436	struct
437	{
438	uint64_t cTicks;
439	uint32_t uAux;
440	} QueryCpuTick;
441	/** Input and output for NEMR0DoExperiment. */
442	struct
443	{
444	uint32_t uItem;
445	bool fSuccess;
446	uint64_t uStatus;
447	uint64_t uLoValue;
448	uint64_t uHiValue;
449	} Experiment;
450	} Hypercall;
451	/** I/O control buffer, we always use this for I/O controls. */
452	union
453	{
454	uint8_t ab[64];
455	HV_PARTITION_ID idPartition;
456	HV_VP_INDEX idCpu;
457	struct
458	{
459	uint64_t enmProperty;
460	uint64_t uValue;
461	} GetProp;
462	# ifdef VID_MSHAGN_F_GET_NEXT_MESSAGE
463	VID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT MsgSlotHandleAndGetNext;
464	# endif
465	} uIoCtlBuf;
466
467	/** @name Statistics
468	* @{ */
469	STAMCOUNTER StatExitPortIo;
470	STAMCOUNTER StatExitMemUnmapped;
471	STAMCOUNTER StatExitMemIntercept;
472	STAMCOUNTER StatExitHalt;
473	STAMCOUNTER StatExitInterruptWindow;
474	STAMCOUNTER StatExitCpuId;
475	STAMCOUNTER StatExitMsr;
476	STAMCOUNTER StatExitException;
477	STAMCOUNTER StatExitExceptionBp;
478	STAMCOUNTER StatExitExceptionDb;
479	STAMCOUNTER StatExitExceptionGp;
480	STAMCOUNTER StatExitExceptionGpMesa;
481	STAMCOUNTER StatExitExceptionUd;
482	STAMCOUNTER StatExitExceptionUdHandled;
483	STAMCOUNTER StatExitUnrecoverable;
484	STAMCOUNTER StatGetMsgTimeout;
485	STAMCOUNTER StatStopCpuSuccess;
486	STAMCOUNTER StatStopCpuPending;
487	STAMCOUNTER StatStopCpuPendingAlerts;
488	STAMCOUNTER StatStopCpuPendingOdd;
489	STAMCOUNTER StatCancelChangedState;
490	STAMCOUNTER StatCancelAlertedThread;
491	STAMCOUNTER StatBreakOnCancel;
492	STAMCOUNTER StatBreakOnFFPre;
493	STAMCOUNTER StatBreakOnFFPost;
494	STAMCOUNTER StatBreakOnStatus;
495	STAMCOUNTER StatImportOnDemand;
496	STAMCOUNTER StatImportOnReturn;
497	STAMCOUNTER StatImportOnReturnSkipped;
498	STAMCOUNTER StatQueryCpuTick;
499	/** @} */
500
501	#elif defined(RT_OS_DARWIN)
502	/** The vCPU handle associated with the EMT executing this vCPU. */
503	hv_vcpuid_t hVCpuId;
504
505	/** @name State shared with the VT-x code.
506	* @{ */
507	/** Whether we should use the debug loop because of single stepping or special
508	* debug breakpoints / events are armed. */
509	bool fUseDebugLoop;
510	/** Whether we're executing a single instruction. */
511	bool fSingleInstruction;
512
513	bool afAlignment0[2];
514
515	/** An additional error code used for some gurus. */
516	uint32_t u32HMError;
517	/** The last exit-to-ring-3 reason. */
518	int32_t rcLastExitToR3;
519	/** CPU-context changed flags (see HM_CHANGED_xxx). */
520	uint64_t fCtxChanged;
521
522	/** The guest VMCS information. */
523	VMXVMCSINFO VmcsInfo;
524
525	/** VT-x data. */
526	struct HMCPUVMX
527	{
528	/** @name Guest information.
529	* @{ */
530	/** Guest VMCS information shared with ring-3. */
531	VMXVMCSINFOSHARED VmcsInfo;
532	/** Nested-guest VMCS information shared with ring-3. */
533	VMXVMCSINFOSHARED VmcsInfoNstGst;
534	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
535	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
536	bool fSwitchedToNstGstVmcsCopyForRing3;
537	/** Whether the static guest VMCS controls has been merged with the
538	* nested-guest VMCS controls. */
539	bool fMergedNstGstCtls;
540	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
541	bool fCopiedNstGstToShadowVmcs;
542	/** Whether flushing the TLB is required due to switching to/from the
543	* nested-guest. */
544	bool fSwitchedNstGstFlushTlb;
545	/** Alignment. */
546	bool afAlignment0[4];
547	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
548	uint64_t u64GstMsrApicBase;
549	/** @} */
550
551	/** @name Error reporting and diagnostics.
552	* @{ */
553	/** VT-x error-reporting (mainly for ring-3 propagation). */
554	struct
555	{
556	RTCPUID idCurrentCpu;
557	RTCPUID idEnteredCpu;
558	RTHCPHYS HCPhysCurrentVmcs;
559	uint32_t u32VmcsRev;
560	uint32_t u32InstrError;
561	uint32_t u32ExitReason;
562	uint32_t u32GuestIntrState;
563	} LastError;
564	/** @} */
565	} vmx;
566
567	/** Event injection state. */
568	HMEVENT Event;
569
570	/** Current shadow paging mode for updating CR4.
571	* @todo move later (@bugref{9217}). */
572	PGMMODE enmShadowMode;
573	uint32_t u32TemporaryPadding;
574
575	/** The PAE PDPEs used with Nested Paging (only valid when
576	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
577	X86PDPE aPdpes[4];
578	/** Pointer to the VMX statistics. */
579	PVMXSTATISTICS pVmxStats;
580
581	/** @name Statistics
582	* @{ */
583	STAMCOUNTER StatExitAll;
584	STAMCOUNTER StatBreakOnCancel;
585	STAMCOUNTER StatBreakOnFFPre;
586	STAMCOUNTER StatBreakOnFFPost;
587	STAMCOUNTER StatBreakOnStatus;
588	STAMCOUNTER StatImportOnDemand;
589	STAMCOUNTER StatImportOnReturn;
590	STAMCOUNTER StatImportOnReturnSkipped;
591	STAMCOUNTER StatQueryCpuTick;
592	#ifdef VBOX_WITH_STATISTICS
593	STAMPROFILEADV StatProfGstStateImport;
594	STAMPROFILEADV StatProfGstStateExport;
595	#endif
596	/** @} */
597
598	/** @} */
599	#endif /* RT_OS_DARWIN */
600	} NEMCPU;
601	/** Pointer to NEM VMCPU instance data. */
602	typedef NEMCPU *PNEMCPU;
603
604	/** NEMCPU::u32Magic value. */
605	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
606	/** NEMCPU::u32Magic value after termination. */
607	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
608
609
610	#ifdef IN_RING0
611	# ifdef RT_OS_WINDOWS
612	/**
613	* Windows: Hypercall input/ouput page info.
614	*/
615	typedef struct NEMR0HYPERCALLDATA
616	{
617	/** Host physical address of the hypercall input/output page. */
618	RTHCPHYS HCPhysPage;
619	/** Pointer to the hypercall input/output page. */
620	uint8_t *pbPage;
621	/** Handle to the memory object of the hypercall input/output page. */
622	RTR0MEMOBJ hMemObj;
623	} NEMR0HYPERCALLDATA;
624	/** Pointer to a Windows hypercall input/output page info. */
625	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
626	# endif /* RT_OS_WINDOWS */
627
628	/**
629	* NEM GVMCPU instance data.
630	*/
631	typedef struct NEMR0PERVCPU
632	{
633	# if defined(RT_OS_WINDOWS) && defined(NEM_WIN_USE_HYPERCALLS_FOR_PAGES)
634	/** Hypercall input/ouput page. */
635	NEMR0HYPERCALLDATA HypercallData;
636	/** Delta to add to convert a ring-0 pointer to a ring-3 one. */
637	uintptr_t offRing3ConversionDelta;
638	# else
639	uint32_t uDummy;
640	# endif
641	} NEMR0PERVCPU;
642
643	/**
644	* NEM GVM instance data.
645	*/
646	typedef struct NEMR0PERVM
647	{
648	# ifdef RT_OS_WINDOWS
649	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
650	/** The partition ID. */
651	uint64_t idHvPartition;
652	/** I/O control context. */
653	PSUPR0IOCTLCTX pIoCtlCtx;
654	/** Info about the VidGetHvPartitionId I/O control interface. */
655	NEMWINIOCTL IoCtlGetHvPartitionId;
656	/** Info about the VidGetPartitionProperty I/O control interface. */
657	NEMWINIOCTL IoCtlGetPartitionProperty;
658	# endif
659	# ifdef NEM_WIN_WITH_RING0_RUNLOOP
660	/** Info about the VidStartVirtualProcessor I/O control interface. */
661	NEMWINIOCTL IoCtlStartVirtualProcessor;
662	/** Info about the VidStopVirtualProcessor I/O control interface. */
663	NEMWINIOCTL IoCtlStopVirtualProcessor;
664	/** Info about the VidStopVirtualProcessor I/O control interface. */
665	NEMWINIOCTL IoCtlMessageSlotHandleAndGetNext;
666	/** Whether we may use the ring-0 runloop or not. */
667	bool fMayUseRing0Runloop;
668	# endif
669
670	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
671	/** Hypercall input/ouput page for non-EMT. */
672	NEMR0HYPERCALLDATA HypercallData;
673	/** Critical section protecting use of HypercallData. */
674	RTCRITSECT HypercallDataCritSect;
675	# endif
676
677	# else
678	uint32_t uDummy;
679	# endif
680	} NEMR0PERVM;
681
682	#endif /* IN_RING*/
683
684
685	#ifdef IN_RING3
686	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
687	int nemR3NativeInitAfterCPUM(PVM pVM);
688	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
689	int nemR3NativeTerm(PVM pVM);
690	void nemR3NativeReset(PVM pVM);
691	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
692	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
693	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
694	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
695	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
696	#endif
697
698	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
699	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
700	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
701	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
702	PGMPAGETYPE enmType, uint8_t *pu2State);
703
704
705	#ifdef RT_OS_WINDOWS
706	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
707	# define NEM_MAX_MAP_PAGES ((PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
708	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
709	# define NEM_MAX_UNMAP_PAGES 4095
710
711	#endif
712	/** @} */
713
714	RT_C_DECLS_END
715
716	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
717

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 92555

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