NEMInternal.h@ 94884

Last change on this file since 94884 was 94884, checked in by vboxsync, 3 years ago
Attempting to fix Darwin NEM.
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1	/* $Id: NEMInternal.h 94884 2022-05-06 06:56:17Z vboxsync $ */
2	/** @file
3	* NEM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2018-2022 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_NATIVE_NEM) && !defined(VBOX_WITH_PGM_NEM_MODE)
47	# error "VBOX_WITH_NATIVE_NEM requires VBOX_WITH_PGM_NEM_MODE to be defined"
48	#endif
49
50
51	#ifdef RT_OS_WINDOWS
52	/*
53	* Windows: Code configuration.
54	*/
55	/* nothing at the moment */
56
57	/**
58	* Windows VID I/O control information.
59	*/
60	typedef struct NEMWINIOCTL
61	{
62	/** The I/O control function number. */
63	uint32_t uFunction;
64	uint32_t cbInput;
65	uint32_t cbOutput;
66	} NEMWINIOCTL;
67
68	/** @name Windows: Our two-bit physical page state for PGMPAGE
69	* @{ */
70	# define NEM_WIN_PAGE_STATE_NOT_SET 0
71	# define NEM_WIN_PAGE_STATE_UNMAPPED 1
72	# define NEM_WIN_PAGE_STATE_READABLE 2
73	# define NEM_WIN_PAGE_STATE_WRITABLE 3
74	/** @} */
75
76	/** Windows: Checks if a_GCPhys is subject to the limited A20 gate emulation. */
77	# define NEM_WIN_IS_SUBJECT_TO_A20(a_GCPhys) ((RTGCPHYS)((a_GCPhys) - _1M) < (RTGCPHYS)_64K)
78	/** Windows: Checks if a_GCPhys is relevant to the limited A20 gate emulation. */
79	# define NEM_WIN_IS_RELEVANT_TO_A20(a_GCPhys) \
80	( ((RTGCPHYS)((a_GCPhys) - _1M) < (RTGCPHYS)_64K) \|\| ((RTGCPHYS)(a_GCPhys) < (RTGCPHYS)_64K) )
81
82	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
83	# define NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \| CPUMCTX_EXTRN_INHIBIT_INT \
84	\| CPUMCTX_EXTRN_INHIBIT_NMI )
85	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
86	# define NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
87
88	/** @name Windows: Interrupt window flags (NEM_WIN_INTW_F_XXX).
89	* @{ */
90	# define NEM_WIN_INTW_F_NMI UINT8_C(0x01)
91	# define NEM_WIN_INTW_F_REGULAR UINT8_C(0x02)
92	# define NEM_WIN_INTW_F_PRIO_MASK UINT8_C(0x3c)
93	# define NEM_WIN_INTW_F_PRIO_SHIFT 2
94	/** @} */
95
96	#endif /* RT_OS_WINDOWS */
97
98
99	#ifdef RT_OS_DARWIN
100	/** vCPU ID declaration to avoid dragging in HV headers here. */
101	typedef unsigned hv_vcpuid_t;
102	/** The HV VM memory space ID (ASID). */
103	typedef unsigned hv_vm_space_t;
104
105
106	/** @name Darwin: Our two-bit physical page state for PGMPAGE
107	* @{ */
108	# define NEM_DARWIN_PAGE_STATE_NOT_SET 0
109	# define NEM_DARWIN_PAGE_STATE_UNMAPPED 1
110	# define NEM_DARWIN_PAGE_STATE_READABLE 2
111	# define NEM_DARWIN_PAGE_STATE_WRITABLE 3
112	/** @} */
113
114	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
115	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \| CPUMCTX_EXTRN_INHIBIT_INT \
116	\| CPUMCTX_EXTRN_INHIBIT_NMI )
117	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
118	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
119
120	#endif
121
122
123	/** Trick to make slickedit see the static functions in the template. */
124	#ifndef IN_SLICKEDIT
125	# define NEM_TMPL_STATIC static
126	#else
127	# define NEM_TMPL_STATIC
128	#endif
129
130
131	/**
132	* Generic NEM exit type enumeration for use with EMHistoryAddExit.
133	*
134	* On windows we've got two different set of exit types and they are both jumping
135	* around the place value wise, so EM can use their values.
136	*
137	* @note We only have exit types for exits not covered by EM here.
138	*/
139	typedef enum NEMEXITTYPE
140	{
141	NEMEXITTYPE_INVALID = 0,
142
143	/* Common: */
144	NEMEXITTYPE_INTTERRUPT_WINDOW,
145	NEMEXITTYPE_HALT,
146
147	/* Windows: */
148	NEMEXITTYPE_UNRECOVERABLE_EXCEPTION,
149	NEMEXITTYPE_INVALID_VP_REGISTER_VALUE,
150	NEMEXITTYPE_XCPT_UD,
151	NEMEXITTYPE_XCPT_DB,
152	NEMEXITTYPE_XCPT_BP,
153	NEMEXITTYPE_CANCELED,
154	NEMEXITTYPE_MEMORY_ACCESS,
155
156	/* Linux: */
157	NEMEXITTYPE_INTERNAL_ERROR_EMULATION,
158	NEMEXITTYPE_INTERNAL_ERROR_FATAL,
159	NEMEXITTYPE_INTERRUPTED,
160	NEMEXITTYPE_FAILED_ENTRY,
161
162	/* End of valid types. */
163	NEMEXITTYPE_END
164	} NEMEXITTYPE;
165
166
167	/**
168	* NEM VM Instance data.
169	*/
170	typedef struct NEM
171	{
172	/** NEM_MAGIC. */
173	uint32_t u32Magic;
174
175	/** Set if enabled. */
176	bool fEnabled;
177	/** Set if long mode guests are allowed. */
178	bool fAllow64BitGuests;
179	/** Set when the debug facility has breakpoints/events enabled that requires
180	* us to use the debug execution loop. */
181	bool fUseDebugLoop;
182
183	#if defined(RT_OS_LINUX)
184	/** The '/dev/kvm' file descriptor. */
185	int32_t fdKvm;
186	/** The KVM_CREATE_VM file descriptor. */
187	int32_t fdVm;
188
189	/** KVM_GET_VCPU_MMAP_SIZE. */
190	uint32_t cbVCpuMmap;
191	/** KVM_CAP_NR_MEMSLOTS. */
192	uint32_t cMaxMemSlots;
193	/** KVM_CAP_X86_ROBUST_SINGLESTEP. */
194	bool fRobustSingleStep;
195
196	/** Hint where there might be a free slot. */
197	uint16_t idPrevSlot;
198	/** Memory slot ID allocation bitmap. */
199	uint64_t bmSlotIds[_32K / 8 / sizeof(uint64_t)];
200
201	#elif defined(RT_OS_WINDOWS)
202	/** Set if we've created the EMTs. */
203	bool fCreatedEmts : 1;
204	/** WHvRunVpExitReasonX64Cpuid is supported. */
205	bool fExtendedMsrExit : 1;
206	/** WHvRunVpExitReasonX64MsrAccess is supported. */
207	bool fExtendedCpuIdExit : 1;
208	/** WHvRunVpExitReasonException is supported. */
209	bool fExtendedXcptExit : 1;
210	# ifdef NEM_WIN_WITH_A20
211	/** Set if we've started more than one CPU and cannot mess with A20. */
212	bool fA20Fixed : 1;
213	/** Set if A20 is enabled. */
214	bool fA20Enabled : 1;
215	# endif
216	/** The reported CPU vendor. */
217	CPUMCPUVENDOR enmCpuVendor;
218	/** Cache line flush size as a power of two. */
219	uint8_t cCacheLineFlushShift;
220	/** The result of WHvCapabilityCodeProcessorFeatures. */
221	union
222	{
223	/** 64-bit view. */
224	uint64_t u64;
225	# ifdef _WINHVAPIDEFS_H_
226	/** Interpreed features. */
227	WHV_PROCESSOR_FEATURES u;
228	# endif
229	} uCpuFeatures;
230
231	/** The partition handle. */
232	# ifdef _WINHVAPIDEFS_H_
233	WHV_PARTITION_HANDLE
234	# else
235	RTHCUINTPTR
236	# endif
237	hPartition;
238	/** The device handle for the partition, for use with Vid APIs or direct I/O
239	* controls. */
240	RTR3PTR hPartitionDevice;
241
242	/** Number of currently mapped pages. */
243	uint32_t volatile cMappedPages;
244	uint32_t u32Padding;
245	STAMCOUNTER StatMapPage;
246	STAMCOUNTER StatUnmapPage;
247	STAMCOUNTER StatMapPageFailed;
248	STAMCOUNTER StatUnmapPageFailed;
249	STAMPROFILE StatProfMapGpaRange;
250	STAMPROFILE StatProfUnmapGpaRange;
251	STAMPROFILE StatProfMapGpaRangePage;
252	STAMPROFILE StatProfUnmapGpaRangePage;
253
254	/** Statistics updated by NEMR0UpdateStatistics. */
255	struct
256	{
257	uint64_t cPagesAvailable;
258	uint64_t cPagesInUse;
259	} R0Stats;
260
261	#elif defined(RT_OS_DARWIN)
262	/** Set if we've created the EMTs. */
263	bool fCreatedEmts : 1;
264	/** Set if hv_vm_create() was called successfully. */
265	bool fCreatedVm : 1;
266	/** Set if hv_vm_space_create() was called successfully. */
267	bool fCreatedAsid : 1;
268	/** Set if Last Branch Record (LBR) is enabled. */
269	bool fLbr;
270	/** The ASID for this VM (only valid if fCreatedAsid is true). */
271	hv_vm_space_t uVmAsid;
272	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
273	uint64_t cMachTimePerNs;
274	/** Pause-loop exiting (PLE) gap in ticks. */
275	uint32_t cPleGapTicks;
276	/** Pause-loop exiting (PLE) window in ticks. */
277	uint32_t cPleWindowTicks;
278
279	/** The host LBR TOS (top-of-stack) MSR id. */
280	uint32_t idLbrTosMsr;
281	/** The host LBR select MSR id. */
282	uint32_t idLbrSelectMsr;
283	/** The host last event record from IP MSR id. */
284	uint32_t idLerFromIpMsr;
285	/** The host last event record to IP MSR id. */
286	uint32_t idLerToIpMsr;
287
288	/** The first valid host LBR branch-from-IP stack range. */
289	uint32_t idLbrFromIpMsrFirst;
290	/** The last valid host LBR branch-from-IP stack range. */
291	uint32_t idLbrFromIpMsrLast;
292
293	/** The first valid host LBR branch-to-IP stack range. */
294	uint32_t idLbrToIpMsrFirst;
295	/** The last valid host LBR branch-to-IP stack range. */
296	uint32_t idLbrToIpMsrLast;
297
298	/** The first valid host LBR info stack range. */
299	uint32_t idLbrInfoMsrFirst;
300	/** The last valid host LBR info stack range. */
301	uint32_t idLbrInfoMsrLast;
302
303	STAMCOUNTER StatMapPage;
304	STAMCOUNTER StatUnmapPage;
305	STAMCOUNTER StatMapPageFailed;
306	STAMCOUNTER StatUnmapPageFailed;
307	#endif /* RT_OS_WINDOWS */
308	} NEM;
309	/** Pointer to NEM VM instance data. */
310	typedef NEM *PNEM;
311
312	/** NEM::u32Magic value. */
313	#define NEM_MAGIC UINT32_C(0x004d454e)
314	/** NEM::u32Magic value after termination. */
315	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
316
317
318	/**
319	* NEM VMCPU Instance data.
320	*/
321	typedef struct NEMCPU
322	{
323	/** NEMCPU_MAGIC. */
324	uint32_t u32Magic;
325	/** Whether \#UD needs to be intercepted and presented to GIM. */
326	bool fGIMTrapXcptUD : 1;
327	/** Whether \#GP needs to be intercept for mesa driver workaround. */
328	bool fTrapXcptGpForLovelyMesaDrv: 1;
329	/** Whether we should use the debug loop because of single stepping or special
330	* debug breakpoints / events are armed. */
331	bool fUseDebugLoop : 1;
332	/** Whether we're executing a single instruction. */
333	bool fSingleInstruction : 1;
334	/** Set if we using the debug loop and wish to intercept RDTSC. */
335	bool fDebugWantRdTscExit : 1;
336	/** Whether we are currently executing in the debug loop.
337	* Mainly for assertions. */
338	bool fUsingDebugLoop : 1;
339	/** Set if we need to clear the trap flag because of single stepping. */
340	bool fClearTrapFlag : 1;
341	/** Whether we're using the hyper DR7 or guest DR7. */
342	bool fUsingHyperDR7 : 1;
343	/** Whether \#DE needs to be intercepted for GIM. */
344	bool fGCMTrapXcptDE : 1;
345
346	#if defined(RT_OS_LINUX)
347	uint8_t abPadding[3];
348	/** The KVM VCpu file descriptor. */
349	int32_t fdVCpu;
350	/** Pointer to the KVM_RUN data exchange region. */
351	R3PTRTYPE(struct kvm_run *) pRun;
352	/** The MSR_IA32_APICBASE value known to KVM. */
353	uint64_t uKvmApicBase;
354
355	/** @name Statistics
356	* @{ */
357	STAMCOUNTER StatExitTotal;
358	STAMCOUNTER StatExitIo;
359	STAMCOUNTER StatExitMmio;
360	STAMCOUNTER StatExitSetTpr;
361	STAMCOUNTER StatExitTprAccess;
362	STAMCOUNTER StatExitRdMsr;
363	STAMCOUNTER StatExitWrMsr;
364	STAMCOUNTER StatExitIrqWindowOpen;
365	STAMCOUNTER StatExitHalt;
366	STAMCOUNTER StatExitIntr;
367	STAMCOUNTER StatExitHypercall;
368	STAMCOUNTER StatExitDebug;
369	STAMCOUNTER StatExitBusLock;
370	STAMCOUNTER StatExitInternalErrorEmulation;
371	STAMCOUNTER StatExitInternalErrorFatal;
372	# if 0
373	STAMCOUNTER StatExitCpuId;
374	STAMCOUNTER StatExitUnrecoverable;
375	STAMCOUNTER StatGetMsgTimeout;
376	STAMCOUNTER StatStopCpuSuccess;
377	STAMCOUNTER StatStopCpuPending;
378	STAMCOUNTER StatStopCpuPendingAlerts;
379	STAMCOUNTER StatStopCpuPendingOdd;
380	STAMCOUNTER StatCancelChangedState;
381	STAMCOUNTER StatCancelAlertedThread;
382	# endif
383	STAMCOUNTER StatBreakOnCancel;
384	STAMCOUNTER StatBreakOnFFPre;
385	STAMCOUNTER StatBreakOnFFPost;
386	STAMCOUNTER StatBreakOnStatus;
387	STAMCOUNTER StatFlushExitOnReturn;
388	STAMCOUNTER StatFlushExitOnReturn1Loop;
389	STAMCOUNTER StatFlushExitOnReturn2Loops;
390	STAMCOUNTER StatFlushExitOnReturn3Loops;
391	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
392	STAMCOUNTER StatImportOnDemand;
393	STAMCOUNTER StatImportOnReturn;
394	STAMCOUNTER StatImportOnReturnSkipped;
395	STAMCOUNTER StatImportPendingInterrupt;
396	STAMCOUNTER StatExportPendingInterrupt;
397	STAMCOUNTER StatQueryCpuTick;
398	/** @} */
399
400
401	#elif defined(RT_OS_WINDOWS)
402	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
403	uint8_t fCurrentInterruptWindows;
404	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
405	uint8_t fDesiredInterruptWindows;
406	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
407	bool fLastInterruptShadow : 1;
408	uint32_t uPadding;
409	/** The VID_MSHAGN_F_XXX flags.
410	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
411	uint32_t fHandleAndGetFlags;
412	/** What VidMessageSlotMap returns and is used for passing exit info. */
413	RTR3PTR pvMsgSlotMapping;
414	/** The windows thread handle. */
415	RTR3PTR hNativeThreadHandle;
416
417	/** @name Statistics
418	* @{ */
419	STAMCOUNTER StatExitPortIo;
420	STAMCOUNTER StatExitMemUnmapped;
421	STAMCOUNTER StatExitMemIntercept;
422	STAMCOUNTER StatExitHalt;
423	STAMCOUNTER StatExitInterruptWindow;
424	STAMCOUNTER StatExitCpuId;
425	STAMCOUNTER StatExitMsr;
426	STAMCOUNTER StatExitException;
427	STAMCOUNTER StatExitExceptionBp;
428	STAMCOUNTER StatExitExceptionDb;
429	STAMCOUNTER StatExitExceptionGp;
430	STAMCOUNTER StatExitExceptionGpMesa;
431	STAMCOUNTER StatExitExceptionUd;
432	STAMCOUNTER StatExitExceptionUdHandled;
433	STAMCOUNTER StatExitUnrecoverable;
434	STAMCOUNTER StatGetMsgTimeout;
435	STAMCOUNTER StatStopCpuSuccess;
436	STAMCOUNTER StatStopCpuPending;
437	STAMCOUNTER StatStopCpuPendingAlerts;
438	STAMCOUNTER StatStopCpuPendingOdd;
439	STAMCOUNTER StatCancelChangedState;
440	STAMCOUNTER StatCancelAlertedThread;
441	STAMCOUNTER StatBreakOnCancel;
442	STAMCOUNTER StatBreakOnFFPre;
443	STAMCOUNTER StatBreakOnFFPost;
444	STAMCOUNTER StatBreakOnStatus;
445	STAMCOUNTER StatImportOnDemand;
446	STAMCOUNTER StatImportOnReturn;
447	STAMCOUNTER StatImportOnReturnSkipped;
448	STAMCOUNTER StatQueryCpuTick;
449	/** @} */
450
451	#elif defined(RT_OS_DARWIN)
452	/** The vCPU handle associated with the EMT executing this vCPU. */
453	hv_vcpuid_t hVCpuId;
454
455	/** @name State shared with the VT-x code.
456	* @{ */
457	/** An additional error code used for some gurus. */
458	uint32_t u32HMError;
459	/** The last exit-to-ring-3 reason. */
460	int32_t rcLastExitToR3;
461	/** CPU-context changed flags (see HM_CHANGED_xxx). */
462	uint64_t fCtxChanged;
463
464	/** The guest VMCS information. */
465	VMXVMCSINFO VmcsInfo;
466
467	/** VT-x data. */
468	struct HMCPUVMX
469	{
470	/** @name Guest information.
471	* @{ */
472	/** Guest VMCS information shared with ring-3. */
473	VMXVMCSINFOSHARED VmcsInfo;
474	/** Nested-guest VMCS information shared with ring-3. */
475	VMXVMCSINFOSHARED VmcsInfoNstGst;
476	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
477	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
478	bool fSwitchedToNstGstVmcsCopyForRing3;
479	/** Whether the static guest VMCS controls has been merged with the
480	* nested-guest VMCS controls. */
481	bool fMergedNstGstCtls;
482	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
483	bool fCopiedNstGstToShadowVmcs;
484	/** Whether flushing the TLB is required due to switching to/from the
485	* nested-guest. */
486	bool fSwitchedNstGstFlushTlb;
487	/** Alignment. */
488	bool afAlignment0[4];
489	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
490	uint64_t u64GstMsrApicBase;
491	/** @} */
492
493	/** @name Error reporting and diagnostics.
494	* @{ */
495	/** VT-x error-reporting (mainly for ring-3 propagation). */
496	struct
497	{
498	RTCPUID idCurrentCpu;
499	RTCPUID idEnteredCpu;
500	RTHCPHYS HCPhysCurrentVmcs;
501	uint32_t u32VmcsRev;
502	uint32_t u32InstrError;
503	uint32_t u32ExitReason;
504	uint32_t u32GuestIntrState;
505	} LastError;
506	/** @} */
507	} vmx;
508
509	/** Event injection state. */
510	HMEVENT Event;
511
512	/** Current shadow paging mode for updating CR4.
513	* @todo move later (@bugref{9217}). */
514	PGMMODE enmShadowMode;
515	uint32_t u32TemporaryPadding;
516
517	/** The PAE PDPEs used with Nested Paging (only valid when
518	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
519	X86PDPE aPdpes[4];
520	/** Pointer to the VMX statistics. */
521	PVMXSTATISTICS pVmxStats;
522
523	/** @name Statistics
524	* @{ */
525	STAMCOUNTER StatExitAll;
526	STAMCOUNTER StatBreakOnCancel;
527	STAMCOUNTER StatBreakOnFFPre;
528	STAMCOUNTER StatBreakOnFFPost;
529	STAMCOUNTER StatBreakOnStatus;
530	STAMCOUNTER StatImportOnDemand;
531	STAMCOUNTER StatImportOnReturn;
532	STAMCOUNTER StatImportOnReturnSkipped;
533	STAMCOUNTER StatQueryCpuTick;
534	#ifdef VBOX_WITH_STATISTICS
535	STAMPROFILEADV StatProfGstStateImport;
536	STAMPROFILEADV StatProfGstStateExport;
537	#endif
538	/** @} */
539
540	/** @} */
541	#endif /* RT_OS_DARWIN */
542	} NEMCPU;
543	/** Pointer to NEM VMCPU instance data. */
544	typedef NEMCPU *PNEMCPU;
545
546	/** NEMCPU::u32Magic value. */
547	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
548	/** NEMCPU::u32Magic value after termination. */
549	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
550
551
552	#ifdef IN_RING0
553	# ifdef RT_OS_WINDOWS
554	/**
555	* Windows: Hypercall input/ouput page info.
556	*/
557	typedef struct NEMR0HYPERCALLDATA
558	{
559	/** Host physical address of the hypercall input/output page. */
560	RTHCPHYS HCPhysPage;
561	/** Pointer to the hypercall input/output page. */
562	uint8_t *pbPage;
563	/** Handle to the memory object of the hypercall input/output page. */
564	RTR0MEMOBJ hMemObj;
565	} NEMR0HYPERCALLDATA;
566	/** Pointer to a Windows hypercall input/output page info. */
567	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
568	# endif /* RT_OS_WINDOWS */
569
570	/**
571	* NEM GVMCPU instance data.
572	*/
573	typedef struct NEMR0PERVCPU
574	{
575	uint32_t uDummy;
576	} NEMR0PERVCPU;
577
578	/**
579	* NEM GVM instance data.
580	*/
581	typedef struct NEMR0PERVM
582	{
583	uint32_t uDummy;
584	} NEMR0PERVM;
585
586	#endif /* IN_RING*/
587
588
589	#ifdef IN_RING3
590	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
591	int nemR3NativeInitAfterCPUM(PVM pVM);
592	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
593	int nemR3NativeTerm(PVM pVM);
594	void nemR3NativeReset(PVM pVM);
595	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
596	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
597	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
598	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
599
600	/**
601	* Forced flag notification call from VMEmt.h.
602	*
603	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
604	*
605	* @param pVM The cross context VM structure.
606	* @param pVCpu The cross context virtual CPU structure of the CPU
607	* to be notified.
608	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
609	*/
610	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
611
612	/**
613	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
614	* on whether to switch to the debug loop.
615	*
616	* @returns Final flag whether to switch to the debug loop.
617	* @param pVM The VM cross context VM structure.
618	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
619	* @thread EMT(0)
620	*/
621	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
622
623
624	/**
625	* Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
626	* on whether to switch to the debug loop.
627	*
628	* @returns Final flag whether to switch to the debug loop.
629	* @param pVM The VM cross context VM structure.
630	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
631	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
632	*/
633	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
634	#endif
635
636	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
637	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
638	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
639	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
640	PGMPAGETYPE enmType, uint8_t *pu2State);
641
642
643	#ifdef RT_OS_WINDOWS
644	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
645	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
646	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
647	# define NEM_MAX_UNMAP_PAGES 4095
648
649	#endif
650	/** @} */
651
652	RT_C_DECLS_END
653
654	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
655

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 94884

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