NEMInternal.h@ 92444

Last change on this file since 92444 was 92444, checked in by vboxsync, 3 years ago
VMM/NEM-linux: Some very early bits. bugref:9044
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1	/* $Id: NEMInternal.h 92444 2021-11-16 01:04:01Z 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_NEM_WIN_INHIBIT_INT \
102	\| CPUMCTX_EXTRN_NEM_WIN_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_NEM_WIN_INHIBIT_INT \
134	\| CPUMCTX_EXTRN_NEM_WIN_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	/* windows: */
160	NEMEXITTYPE_UNRECOVERABLE_EXCEPTION = 1,
161	NEMEXITTYPE_INVALID_VP_REGISTER_VALUE,
162	NEMEXITTYPE_INTTERRUPT_WINDOW,
163	NEMEXITTYPE_HALT,
164	NEMEXITTYPE_XCPT_UD,
165	NEMEXITTYPE_XCPT_DB,
166	NEMEXITTYPE_XCPT_BP,
167	NEMEXITTYPE_CANCELED,
168	NEMEXITTYPE_MEMORY_ACCESS
169	} NEMEXITTYPE;
170
171
172	/**
173	* NEM VM Instance data.
174	*/
175	typedef struct NEM
176	{
177	/** NEM_MAGIC. */
178	uint32_t u32Magic;
179
180	/** Set if enabled. */
181	bool fEnabled;
182	/** Set if long mode guests are allowed. */
183	bool fAllow64BitGuests;
184
185	#if defined(RT_OS_LINUX)
186	/** The '/dev/kvm' file descriptor. */
187	int32_t fdKvm;
188	/** The KVM_CREATE_VM file descriptor. */
189	int32_t fdVm;
190
191	/** KVM_CAP_NR_MEMSLOTS. */
192	uint32_t cMaxMemSlots;
193	/** KVM_CAP_X86_ROBUST_SINGLESTEP. */
194	bool fRobustSingleStep;
195	/** KVM_GET_VCPU_MMAP_SIZE. */
196	uint32_t cbVCpuMmap;
197
198	#elif defined(RT_OS_WINDOWS)
199	/** Set if we've created the EMTs. */
200	bool fCreatedEmts : 1;
201	/** WHvRunVpExitReasonX64Cpuid is supported. */
202	bool fExtendedMsrExit : 1;
203	/** WHvRunVpExitReasonX64MsrAccess is supported. */
204	bool fExtendedCpuIdExit : 1;
205	/** WHvRunVpExitReasonException is supported. */
206	bool fExtendedXcptExit : 1;
207	/** Set if we're using the ring-0 API to do the work. */
208	bool fUseRing0Runloop : 1;
209	# ifdef NEM_WIN_WITH_A20
210	/** Set if we've started more than one CPU and cannot mess with A20. */
211	bool fA20Fixed : 1;
212	/** Set if A20 is enabled. */
213	bool fA20Enabled : 1;
214	# endif
215	/** The reported CPU vendor. */
216	CPUMCPUVENDOR enmCpuVendor;
217	/** Cache line flush size as a power of two. */
218	uint8_t cCacheLineFlushShift;
219	/** The result of WHvCapabilityCodeProcessorFeatures. */
220	union
221	{
222	/** 64-bit view. */
223	uint64_t u64;
224	# ifdef _WINHVAPIDEFS_H_
225	/** Interpreed features. */
226	WHV_PROCESSOR_FEATURES u;
227	# endif
228	} uCpuFeatures;
229
230	/** The partition handle. */
231	# ifdef _WINHVAPIDEFS_H_
232	WHV_PARTITION_HANDLE
233	# else
234	RTHCUINTPTR
235	# endif
236	hPartition;
237	/** The device handle for the partition, for use with Vid APIs or direct I/O
238	* controls. */
239	RTR3PTR hPartitionDevice;
240	/** The Hyper-V partition ID. */
241	uint64_t idHvPartition;
242
243	/** Number of currently mapped pages. */
244	uint32_t volatile cMappedPages;
245	# ifndef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
246	/** Max number of pages we dare map at once. */
247	uint32_t cMaxMappedPages;
248	# endif
249	STAMCOUNTER StatMapPage;
250	STAMCOUNTER StatUnmapPage;
251	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
252	STAMCOUNTER StatRemapPage;
253	STAMCOUNTER StatRemapPageFailed;
254	# elif !defined(VBOX_WITH_PGM_NEM_MODE)
255	STAMCOUNTER StatUnmapAllPages;
256	# endif
257	STAMCOUNTER StatMapPageFailed;
258	STAMCOUNTER StatUnmapPageFailed;
259	# ifdef VBOX_WITH_PGM_NEM_MODE
260	STAMPROFILE StatProfMapGpaRange;
261	STAMPROFILE StatProfUnmapGpaRange;
262	# endif
263	# ifndef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
264	STAMPROFILE StatProfMapGpaRangePage;
265	STAMPROFILE StatProfUnmapGpaRangePage;
266	# endif
267
268	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
269	/** Info about the VidGetHvPartitionId I/O control interface. */
270	NEMWINIOCTL IoCtlGetHvPartitionId;
271	/** Info about the VidGetPartitionProperty I/O control interface. */
272	NEMWINIOCTL IoCtlGetPartitionProperty;
273	# endif
274	# ifdef NEM_WIN_WITH_RING0_RUNLOOP
275	/** Info about the VidStartVirtualProcessor I/O control interface. */
276	NEMWINIOCTL IoCtlStartVirtualProcessor;
277	/** Info about the VidStopVirtualProcessor I/O control interface. */
278	NEMWINIOCTL IoCtlStopVirtualProcessor;
279	/** Info about the VidStopVirtualProcessor I/O control interface. */
280	NEMWINIOCTL IoCtlMessageSlotHandleAndGetNext;
281	# endif
282
283	/** Statistics updated by NEMR0UpdateStatistics. */
284	struct
285	{
286	uint64_t cPagesAvailable;
287	uint64_t cPagesInUse;
288	} R0Stats;
289
290	#elif defined(RT_OS_DARWIN)
291	/** Set if we've created the EMTs. */
292	bool fCreatedEmts : 1;
293	/** Set if hv_vm_create() was called successfully. */
294	bool fCreatedVm : 1;
295	/** Set if hv_vm_space_create() was called successfully. */
296	bool fCreatedAsid : 1;
297	/** The ASID for this VM (only valid if fCreatedAsid is true). */
298	hv_vm_space_t uVmAsid;
299	STAMCOUNTER StatMapPage;
300	STAMCOUNTER StatUnmapPage;
301	STAMCOUNTER StatMapPageFailed;
302	STAMCOUNTER StatUnmapPageFailed;
303	#endif /* RT_OS_WINDOWS */
304	} NEM;
305	/** Pointer to NEM VM instance data. */
306	typedef NEM *PNEM;
307
308	/** NEM::u32Magic value. */
309	#define NEM_MAGIC UINT32_C(0x004d454e)
310	/** NEM::u32Magic value after termination. */
311	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
312
313
314	/**
315	* NEM VMCPU Instance data.
316	*/
317	typedef struct NEMCPU
318	{
319	/** NEMCPU_MAGIC. */
320	uint32_t u32Magic;
321	/** Whether \#UD needs to be intercepted and presented to GIM. */
322	bool fGIMTrapXcptUD : 1;
323	/** Whether \#GP needs to be intercept for mesa driver workaround. */
324	bool fTrapXcptGpForLovelyMesaDrv: 1;
325
326	#if defined(RT_OS_LINUX)
327	uint8_t abPadding[3];
328	/** The KVM VCpu file descriptor. */
329	int32_t fdVCpu;
330	/** Pointer to the KVM_RUN data exchange region. */
331	R3PTRTYPE(struct kvm_run *) pRun;
332
333	/** @name Statistics
334	* @{ */
335	# if 0
336	STAMCOUNTER StatExitPortIo;
337	STAMCOUNTER StatExitMemUnmapped;
338	STAMCOUNTER StatExitMemIntercept;
339	STAMCOUNTER StatExitHalt;
340	STAMCOUNTER StatExitInterruptWindow;
341	STAMCOUNTER StatExitCpuId;
342	STAMCOUNTER StatExitMsr;
343	STAMCOUNTER StatExitException;
344	STAMCOUNTER StatExitExceptionBp;
345	STAMCOUNTER StatExitExceptionDb;
346	STAMCOUNTER StatExitExceptionGp;
347	STAMCOUNTER StatExitExceptionGpMesa;
348	STAMCOUNTER StatExitExceptionUd;
349	STAMCOUNTER StatExitExceptionUdHandled;
350	STAMCOUNTER StatExitUnrecoverable;
351	STAMCOUNTER StatGetMsgTimeout;
352	STAMCOUNTER StatStopCpuSuccess;
353	STAMCOUNTER StatStopCpuPending;
354	STAMCOUNTER StatStopCpuPendingAlerts;
355	STAMCOUNTER StatStopCpuPendingOdd;
356	STAMCOUNTER StatCancelChangedState;
357	STAMCOUNTER StatCancelAlertedThread;
358	STAMCOUNTER StatBreakOnCancel;
359	STAMCOUNTER StatBreakOnFFPre;
360	STAMCOUNTER StatBreakOnFFPost;
361	STAMCOUNTER StatBreakOnStatus;
362	# endif
363	STAMCOUNTER StatImportOnDemand;
364	STAMCOUNTER StatImportOnReturn;
365	STAMCOUNTER StatImportOnReturnSkipped;
366	STAMCOUNTER StatQueryCpuTick;
367	/** @} */
368
369
370	#elif defined(RT_OS_WINDOWS)
371	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
372	uint8_t fCurrentInterruptWindows;
373	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
374	uint8_t fDesiredInterruptWindows;
375	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
376	bool fLastInterruptShadow : 1;
377	# ifdef NEM_WIN_WITH_RING0_RUNLOOP
378	/** Pending VINF_NEM_FLUSH_TLB. */
379	int32_t rcPending;
380	# else
381	uint32_t uPadding;
382	# endif
383	/** The VID_MSHAGN_F_XXX flags.
384	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
385	uint32_t fHandleAndGetFlags;
386	/** What VidMessageSlotMap returns and is used for passing exit info. */
387	RTR3PTR pvMsgSlotMapping;
388	/** The windows thread handle. */
389	RTR3PTR hNativeThreadHandle;
390	/** Parameters for making Hyper-V hypercalls. */
391	union
392	{
393	uint8_t ab[64];
394	/** Arguments for NEMR0MapPages (HvCallMapGpaPages). */
395	struct
396	{
397	RTGCPHYS GCPhysSrc;
398	RTGCPHYS GCPhysDst; /*< Same as GCPhysSrc except maybe when the A20 gate is disabled. /
399	uint32_t cPages;
400	HV_MAP_GPA_FLAGS fFlags;
401	} MapPages;
402	/** Arguments for NEMR0UnmapPages (HvCallUnmapGpaPages). */
403	struct
404	{
405	RTGCPHYS GCPhys;
406	uint32_t cPages;
407	} UnmapPages;
408	/** Result from NEMR0QueryCpuTick. */
409	struct
410	{
411	uint64_t cTicks;
412	uint32_t uAux;
413	} QueryCpuTick;
414	/** Input and output for NEMR0DoExperiment. */
415	struct
416	{
417	uint32_t uItem;
418	bool fSuccess;
419	uint64_t uStatus;
420	uint64_t uLoValue;
421	uint64_t uHiValue;
422	} Experiment;
423	} Hypercall;
424	/** I/O control buffer, we always use this for I/O controls. */
425	union
426	{
427	uint8_t ab[64];
428	HV_PARTITION_ID idPartition;
429	HV_VP_INDEX idCpu;
430	struct
431	{
432	uint64_t enmProperty;
433	uint64_t uValue;
434	} GetProp;
435	# ifdef VID_MSHAGN_F_GET_NEXT_MESSAGE
436	VID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT MsgSlotHandleAndGetNext;
437	# endif
438	} uIoCtlBuf;
439
440	/** @name Statistics
441	* @{ */
442	STAMCOUNTER StatExitPortIo;
443	STAMCOUNTER StatExitMemUnmapped;
444	STAMCOUNTER StatExitMemIntercept;
445	STAMCOUNTER StatExitHalt;
446	STAMCOUNTER StatExitInterruptWindow;
447	STAMCOUNTER StatExitCpuId;
448	STAMCOUNTER StatExitMsr;
449	STAMCOUNTER StatExitException;
450	STAMCOUNTER StatExitExceptionBp;
451	STAMCOUNTER StatExitExceptionDb;
452	STAMCOUNTER StatExitExceptionGp;
453	STAMCOUNTER StatExitExceptionGpMesa;
454	STAMCOUNTER StatExitExceptionUd;
455	STAMCOUNTER StatExitExceptionUdHandled;
456	STAMCOUNTER StatExitUnrecoverable;
457	STAMCOUNTER StatGetMsgTimeout;
458	STAMCOUNTER StatStopCpuSuccess;
459	STAMCOUNTER StatStopCpuPending;
460	STAMCOUNTER StatStopCpuPendingAlerts;
461	STAMCOUNTER StatStopCpuPendingOdd;
462	STAMCOUNTER StatCancelChangedState;
463	STAMCOUNTER StatCancelAlertedThread;
464	STAMCOUNTER StatBreakOnCancel;
465	STAMCOUNTER StatBreakOnFFPre;
466	STAMCOUNTER StatBreakOnFFPost;
467	STAMCOUNTER StatBreakOnStatus;
468	STAMCOUNTER StatImportOnDemand;
469	STAMCOUNTER StatImportOnReturn;
470	STAMCOUNTER StatImportOnReturnSkipped;
471	STAMCOUNTER StatQueryCpuTick;
472	/** @} */
473
474	#elif defined(RT_OS_DARWIN)
475	/** The vCPU handle associated with the EMT executing this vCPU. */
476	hv_vcpuid_t hVCpuId;
477
478	/** @name State shared with the VT-x code.
479	* @{ */
480	/** Whether we should use the debug loop because of single stepping or special
481	* debug breakpoints / events are armed. */
482	bool fUseDebugLoop;
483	/** Whether we're executing a single instruction. */
484	bool fSingleInstruction;
485
486	bool afAlignment0[2];
487
488	/** An additional error code used for some gurus. */
489	uint32_t u32HMError;
490	/** The last exit-to-ring-3 reason. */
491	int32_t rcLastExitToR3;
492	/** CPU-context changed flags (see HM_CHANGED_xxx). */
493	uint64_t fCtxChanged;
494
495	/** The guest VMCS information. */
496	VMXVMCSINFO VmcsInfo;
497
498	/** VT-x data. */
499	struct HMCPUVMX
500	{
501	/** @name Guest information.
502	* @{ */
503	/** Guest VMCS information shared with ring-3. */
504	VMXVMCSINFOSHARED VmcsInfo;
505	/** Nested-guest VMCS information shared with ring-3. */
506	VMXVMCSINFOSHARED VmcsInfoNstGst;
507	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
508	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
509	bool fSwitchedToNstGstVmcsCopyForRing3;
510	/** Whether the static guest VMCS controls has been merged with the
511	* nested-guest VMCS controls. */
512	bool fMergedNstGstCtls;
513	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
514	bool fCopiedNstGstToShadowVmcs;
515	/** Whether flushing the TLB is required due to switching to/from the
516	* nested-guest. */
517	bool fSwitchedNstGstFlushTlb;
518	/** Alignment. */
519	bool afAlignment0[4];
520	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
521	uint64_t u64GstMsrApicBase;
522	/** @} */
523
524	/** @name Error reporting and diagnostics.
525	* @{ */
526	/** VT-x error-reporting (mainly for ring-3 propagation). */
527	struct
528	{
529	RTCPUID idCurrentCpu;
530	RTCPUID idEnteredCpu;
531	RTHCPHYS HCPhysCurrentVmcs;
532	uint32_t u32VmcsRev;
533	uint32_t u32InstrError;
534	uint32_t u32ExitReason;
535	uint32_t u32GuestIntrState;
536	} LastError;
537	/** @} */
538	} vmx;
539
540	/** Event injection state. */
541	HMEVENT Event;
542
543	/** Current shadow paging mode for updating CR4.
544	* @todo move later (@bugref{9217}). */
545	PGMMODE enmShadowMode;
546	uint32_t u32TemporaryPadding;
547
548	/** The PAE PDPEs used with Nested Paging (only valid when
549	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
550	X86PDPE aPdpes[4];
551	/** Pointer to the VMX statistics. */
552	PVMXSTATISTICS pVmxStats;
553
554	/** @name Statistics
555	* @{ */
556	STAMCOUNTER StatBreakOnCancel;
557	STAMCOUNTER StatBreakOnFFPre;
558	STAMCOUNTER StatBreakOnFFPost;
559	STAMCOUNTER StatBreakOnStatus;
560	STAMCOUNTER StatImportOnDemand;
561	STAMCOUNTER StatImportOnReturn;
562	STAMCOUNTER StatImportOnReturnSkipped;
563	STAMCOUNTER StatQueryCpuTick;
564	/** @} */
565
566	/** @} */
567	#endif /* RT_OS_DARWIN */
568	} NEMCPU;
569	/** Pointer to NEM VMCPU instance data. */
570	typedef NEMCPU *PNEMCPU;
571
572	/** NEMCPU::u32Magic value. */
573	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
574	/** NEMCPU::u32Magic value after termination. */
575	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
576
577
578	#ifdef IN_RING0
579	# ifdef RT_OS_WINDOWS
580	/**
581	* Windows: Hypercall input/ouput page info.
582	*/
583	typedef struct NEMR0HYPERCALLDATA
584	{
585	/** Host physical address of the hypercall input/output page. */
586	RTHCPHYS HCPhysPage;
587	/** Pointer to the hypercall input/output page. */
588	uint8_t *pbPage;
589	/** Handle to the memory object of the hypercall input/output page. */
590	RTR0MEMOBJ hMemObj;
591	} NEMR0HYPERCALLDATA;
592	/** Pointer to a Windows hypercall input/output page info. */
593	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
594	# endif /* RT_OS_WINDOWS */
595
596	/**
597	* NEM GVMCPU instance data.
598	*/
599	typedef struct NEMR0PERVCPU
600	{
601	# if defined(RT_OS_WINDOWS) && defined(NEM_WIN_USE_HYPERCALLS_FOR_PAGES)
602	/** Hypercall input/ouput page. */
603	NEMR0HYPERCALLDATA HypercallData;
604	/** Delta to add to convert a ring-0 pointer to a ring-3 one. */
605	uintptr_t offRing3ConversionDelta;
606	# else
607	uint32_t uDummy;
608	# endif
609	} NEMR0PERVCPU;
610
611	/**
612	* NEM GVM instance data.
613	*/
614	typedef struct NEMR0PERVM
615	{
616	# ifdef RT_OS_WINDOWS
617	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
618	/** The partition ID. */
619	uint64_t idHvPartition;
620	/** I/O control context. */
621	PSUPR0IOCTLCTX pIoCtlCtx;
622	/** Info about the VidGetHvPartitionId I/O control interface. */
623	NEMWINIOCTL IoCtlGetHvPartitionId;
624	/** Info about the VidGetPartitionProperty I/O control interface. */
625	NEMWINIOCTL IoCtlGetPartitionProperty;
626	# endif
627	# ifdef NEM_WIN_WITH_RING0_RUNLOOP
628	/** Info about the VidStartVirtualProcessor I/O control interface. */
629	NEMWINIOCTL IoCtlStartVirtualProcessor;
630	/** Info about the VidStopVirtualProcessor I/O control interface. */
631	NEMWINIOCTL IoCtlStopVirtualProcessor;
632	/** Info about the VidStopVirtualProcessor I/O control interface. */
633	NEMWINIOCTL IoCtlMessageSlotHandleAndGetNext;
634	/** Whether we may use the ring-0 runloop or not. */
635	bool fMayUseRing0Runloop;
636	# endif
637
638	# ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
639	/** Hypercall input/ouput page for non-EMT. */
640	NEMR0HYPERCALLDATA HypercallData;
641	/** Critical section protecting use of HypercallData. */
642	RTCRITSECT HypercallDataCritSect;
643	# endif
644
645	# else
646	uint32_t uDummy;
647	# endif
648	} NEMR0PERVM;
649
650	#endif /* IN_RING*/
651
652
653	#ifdef IN_RING3
654	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
655	int nemR3NativeInitAfterCPUM(PVM pVM);
656	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
657	int nemR3NativeTerm(PVM pVM);
658	void nemR3NativeReset(PVM pVM);
659	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
660	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
661	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
662	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
663	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
664	#endif
665
666	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
667	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
668	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
669	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
670	PGMPAGETYPE enmType, uint8_t *pu2State);
671
672
673	#ifdef RT_OS_WINDOWS
674	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
675	# define NEM_MAX_MAP_PAGES ((PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
676	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
677	# define NEM_MAX_UNMAP_PAGES 4095
678
679	#endif
680	/** @} */
681
682	RT_C_DECLS_END
683
684	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
685

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 92444

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