NEMInternal.h@ 100705

Last change on this file since 100705 was 100705, checked in by vboxsync, 22 months ago
VMM/NEMR3Native-darwin-armv8.cpp: Need to implement our own simplistic dirty page tracking for MMIO2 regions as Hypervisor.framework doesn't work with guest page sizes but only with host page sized regions so it conflicts with our generic implementation in PGM. With that it is possible to get screen updates for guests which access the standard framebuffer and don't use the SVGA 3 interface to notify the device about dirty regions, bugref:10390
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1	/* $Id: NEMInternal.h 100705 2023-07-26 12:57:59Z vboxsync $ */
2	/** @file
3	* NEM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2018-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.215389.xyz.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#ifndef VMM_INCLUDED_SRC_include_NEMInternal_h
29	#define VMM_INCLUDED_SRC_include_NEMInternal_h
30	#ifndef RT_WITHOUT_PRAGMA_ONCE
31	# pragma once
32	#endif
33
34	#include <VBox/cdefs.h>
35	#include <VBox/types.h>
36	#include <VBox/vmm/nem.h>
37	#include <VBox/vmm/cpum.h> /* For CPUMCPUVENDOR. */
38	#include <VBox/vmm/stam.h>
39	#include <VBox/vmm/vmapi.h>
40	#ifdef RT_OS_WINDOWS
41	#include <iprt/nt/hyperv.h>
42	#include <iprt/critsect.h>
43	#elif defined(RT_OS_DARWIN)
44	# if defined(VBOX_VMM_TARGET_ARMV8)
45	# include <Hypervisor/Hypervisor.h>
46	# else
47	# include "VMXInternal.h"
48	# endif
49	#endif
50
51	RT_C_DECLS_BEGIN
52
53
54	/** @defgroup grp_nem_int Internal
55	* @ingroup grp_nem
56	* @internal
57	* @{
58	*/
59
60	#if defined(VBOX_WITH_NATIVE_NEM) && !defined(VBOX_WITH_PGM_NEM_MODE)
61	# error "VBOX_WITH_NATIVE_NEM requires VBOX_WITH_PGM_NEM_MODE to be defined"
62	#endif
63
64
65	#ifdef RT_OS_WINDOWS
66	/*
67	* Windows: Code configuration.
68	*/
69	/* nothing at the moment */
70
71	/**
72	* Windows VID I/O control information.
73	*/
74	typedef struct NEMWINIOCTL
75	{
76	/** The I/O control function number. */
77	uint32_t uFunction;
78	uint32_t cbInput;
79	uint32_t cbOutput;
80	} NEMWINIOCTL;
81
82	/** @name Windows: Our two-bit physical page state for PGMPAGE
83	* @{ */
84	# define NEM_WIN_PAGE_STATE_NOT_SET 0
85	# define NEM_WIN_PAGE_STATE_UNMAPPED 1
86	# define NEM_WIN_PAGE_STATE_READABLE 2
87	# define NEM_WIN_PAGE_STATE_WRITABLE 3
88	/** @} */
89
90	/** Windows: Checks if a_GCPhys is subject to the limited A20 gate emulation. */
91	# define NEM_WIN_IS_SUBJECT_TO_A20(a_GCPhys) ((RTGCPHYS)((a_GCPhys) - _1M) < (RTGCPHYS)_64K)
92	/** Windows: Checks if a_GCPhys is relevant to the limited A20 gate emulation. */
93	# define NEM_WIN_IS_RELEVANT_TO_A20(a_GCPhys) \
94	( ((RTGCPHYS)((a_GCPhys) - _1M) < (RTGCPHYS)_64K) \|\| ((RTGCPHYS)(a_GCPhys) < (RTGCPHYS)_64K) )
95
96	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
97	# define NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \| CPUMCTX_EXTRN_INHIBIT_INT \
98	\| CPUMCTX_EXTRN_INHIBIT_NMI )
99	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
100	# define NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_WIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
101
102	/** @name Windows: Interrupt window flags (NEM_WIN_INTW_F_XXX).
103	* @{ */
104	# define NEM_WIN_INTW_F_NMI UINT8_C(0x01)
105	# define NEM_WIN_INTW_F_REGULAR UINT8_C(0x02)
106	# define NEM_WIN_INTW_F_PRIO_MASK UINT8_C(0x3c)
107	# define NEM_WIN_INTW_F_PRIO_SHIFT 2
108	/** @} */
109
110	#endif /* RT_OS_WINDOWS */
111
112
113	#ifdef RT_OS_DARWIN
114	# if !defined(VBOX_VMM_TARGET_ARMV8)
115	/** vCPU ID declaration to avoid dragging in HV headers here. */
116	typedef unsigned hv_vcpuid_t;
117	/** The HV VM memory space ID (ASID). */
118	typedef unsigned hv_vm_space_t;
119	# endif
120
121
122	/** @name Darwin: Our two-bit physical page state for PGMPAGE
123	* @{ */
124	# define NEM_DARWIN_PAGE_STATE_UNMAPPED 0
125	# define NEM_DARWIN_PAGE_STATE_RX 1
126	# define NEM_DARWIN_PAGE_STATE_RW 2
127	# define NEM_DARWIN_PAGE_STATE_RWX 3
128	/** @} */
129
130	# if defined(VBOX_VMM_TARGET_ARMV8)
131	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
132	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK )
133	# else
134	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
135	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \| CPUMCTX_EXTRN_INHIBIT_INT \
136	\| CPUMCTX_EXTRN_INHIBIT_NMI )
137	#endif
138
139	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
140	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
141
142
143	# if defined(VBOX_VMM_TARGET_ARMV8)
144	/**
145	* MMIO2 tracking region.
146	*/
147	typedef struct
148	{
149	/* Start of the region. */
150	RTGCPHYS GCPhysStart;
151	/** End of the region. */
152	RTGCPHYS GCPhysLast;
153	/** Whether the region was accessed since last time. */
154	bool fDirty;
155	} NEMHVMMIO2REGION;
156	/** Pointer to a MMIO2 tracking region. */
157	typedef NEMHVMMIO2REGION *PNEMHVMMIO2REGION;
158	# endif
159
160	#endif
161
162
163	/** Trick to make slickedit see the static functions in the template. */
164	#ifndef IN_SLICKEDIT
165	# define NEM_TMPL_STATIC static
166	#else
167	# define NEM_TMPL_STATIC
168	#endif
169
170
171	/**
172	* Generic NEM exit type enumeration for use with EMHistoryAddExit.
173	*
174	* On windows we've got two different set of exit types and they are both jumping
175	* around the place value wise, so EM can use their values.
176	*
177	* @note We only have exit types for exits not covered by EM here.
178	*/
179	typedef enum NEMEXITTYPE
180	{
181	NEMEXITTYPE_INVALID = 0,
182
183	/* Common: */
184	NEMEXITTYPE_INTTERRUPT_WINDOW,
185	NEMEXITTYPE_HALT,
186
187	/* Windows: */
188	NEMEXITTYPE_UNRECOVERABLE_EXCEPTION,
189	NEMEXITTYPE_INVALID_VP_REGISTER_VALUE,
190	NEMEXITTYPE_XCPT_UD,
191	NEMEXITTYPE_XCPT_DB,
192	NEMEXITTYPE_XCPT_BP,
193	NEMEXITTYPE_CANCELED,
194	NEMEXITTYPE_MEMORY_ACCESS,
195
196	/* Linux: */
197	NEMEXITTYPE_INTERNAL_ERROR_EMULATION,
198	NEMEXITTYPE_INTERNAL_ERROR_FATAL,
199	NEMEXITTYPE_INTERRUPTED,
200	NEMEXITTYPE_FAILED_ENTRY,
201
202	/* End of valid types. */
203	NEMEXITTYPE_END
204	} NEMEXITTYPE;
205
206
207	/**
208	* NEM VM Instance data.
209	*/
210	typedef struct NEM
211	{
212	/** NEM_MAGIC. */
213	uint32_t u32Magic;
214
215	/** Set if enabled. */
216	bool fEnabled;
217	/** Set if long mode guests are allowed. */
218	bool fAllow64BitGuests;
219	/** Set when the debug facility has breakpoints/events enabled that requires
220	* us to use the debug execution loop. */
221	bool fUseDebugLoop;
222
223	#if defined(RT_OS_LINUX)
224	/** The '/dev/kvm' file descriptor. */
225	int32_t fdKvm;
226	/** The KVM_CREATE_VM file descriptor. */
227	int32_t fdVm;
228
229	/** KVM_GET_VCPU_MMAP_SIZE. */
230	uint32_t cbVCpuMmap;
231	/** KVM_CAP_NR_MEMSLOTS. */
232	uint32_t cMaxMemSlots;
233	/** KVM_CAP_X86_ROBUST_SINGLESTEP. */
234	bool fRobustSingleStep;
235
236	/** Hint where there might be a free slot. */
237	uint16_t idPrevSlot;
238	/** Memory slot ID allocation bitmap. */
239	uint64_t bmSlotIds[_32K / 8 / sizeof(uint64_t)];
240
241	#elif defined(RT_OS_WINDOWS)
242	/** Set if we've created the EMTs. */
243	bool fCreatedEmts : 1;
244	/** WHvRunVpExitReasonX64Cpuid is supported. */
245	bool fExtendedMsrExit : 1;
246	/** WHvRunVpExitReasonX64MsrAccess is supported. */
247	bool fExtendedCpuIdExit : 1;
248	/** WHvRunVpExitReasonException is supported. */
249	bool fExtendedXcptExit : 1;
250	# ifdef NEM_WIN_WITH_A20
251	/** Set if we've started more than one CPU and cannot mess with A20. */
252	bool fA20Fixed : 1;
253	/** Set if A20 is enabled. */
254	bool fA20Enabled : 1;
255	# endif
256	/** The reported CPU vendor. */
257	CPUMCPUVENDOR enmCpuVendor;
258	/** Cache line flush size as a power of two. */
259	uint8_t cCacheLineFlushShift;
260	/** The result of WHvCapabilityCodeProcessorFeatures. */
261	union
262	{
263	/** 64-bit view. */
264	uint64_t u64;
265	# ifdef _WINHVAPIDEFS_H_
266	/** Interpreed features. */
267	WHV_PROCESSOR_FEATURES u;
268	# endif
269	} uCpuFeatures;
270
271	/** The partition handle. */
272	# ifdef _WINHVAPIDEFS_H_
273	WHV_PARTITION_HANDLE
274	# else
275	RTHCUINTPTR
276	# endif
277	hPartition;
278	/** The device handle for the partition, for use with Vid APIs or direct I/O
279	* controls. */
280	RTR3PTR hPartitionDevice;
281
282	/** Number of currently mapped pages. */
283	uint32_t volatile cMappedPages;
284	uint32_t u32Padding;
285	STAMCOUNTER StatMapPage;
286	STAMCOUNTER StatUnmapPage;
287	STAMCOUNTER StatMapPageFailed;
288	STAMCOUNTER StatUnmapPageFailed;
289	STAMPROFILE StatProfMapGpaRange;
290	STAMPROFILE StatProfUnmapGpaRange;
291	STAMPROFILE StatProfMapGpaRangePage;
292	STAMPROFILE StatProfUnmapGpaRangePage;
293
294	/** Statistics updated by NEMR0UpdateStatistics. */
295	struct
296	{
297	uint64_t cPagesAvailable;
298	uint64_t cPagesInUse;
299	} R0Stats;
300
301	#elif defined(RT_OS_DARWIN)
302	/** Set if we've created the EMTs. */
303	bool fCreatedEmts : 1;
304	/** Set if hv_vm_create() was called successfully. */
305	bool fCreatedVm : 1;
306	# if defined(VBOX_VMM_TARGET_ARMV8)
307	/** @name vTimer related state.
308	* @{ */
309	/** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
310	uint64_t u64CntFrqHz;
311	/** The vTimer offset programmed. */
312	uint64_t u64VTimerOff;
313	/** Dirty tracking slots. */
314	NEMHVMMIO2REGION aMmio2DirtyTracking[8];
315	/** @} */
316	# else
317	/** Set if hv_vm_space_create() was called successfully. */
318	bool fCreatedAsid : 1;
319	/** Set if Last Branch Record (LBR) is enabled. */
320	bool fLbr;
321	/** The ASID for this VM (only valid if fCreatedAsid is true). */
322	hv_vm_space_t uVmAsid;
323	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
324	uint64_t cMachTimePerNs;
325	/** Pause-loop exiting (PLE) gap in ticks. */
326	uint32_t cPleGapTicks;
327	/** Pause-loop exiting (PLE) window in ticks. */
328	uint32_t cPleWindowTicks;
329
330	/** The host LBR TOS (top-of-stack) MSR id. */
331	uint32_t idLbrTosMsr;
332	/** The host LBR select MSR id. */
333	uint32_t idLbrSelectMsr;
334	/** The host last event record from IP MSR id. */
335	uint32_t idLerFromIpMsr;
336	/** The host last event record to IP MSR id. */
337	uint32_t idLerToIpMsr;
338
339	/** The first valid host LBR branch-from-IP stack range. */
340	uint32_t idLbrFromIpMsrFirst;
341	/** The last valid host LBR branch-from-IP stack range. */
342	uint32_t idLbrFromIpMsrLast;
343
344	/** The first valid host LBR branch-to-IP stack range. */
345	uint32_t idLbrToIpMsrFirst;
346	/** The last valid host LBR branch-to-IP stack range. */
347	uint32_t idLbrToIpMsrLast;
348
349	/** The first valid host LBR info stack range. */
350	uint32_t idLbrInfoMsrFirst;
351	/** The last valid host LBR info stack range. */
352	uint32_t idLbrInfoMsrLast;
353	# endif
354
355	STAMCOUNTER StatMapPage;
356	STAMCOUNTER StatUnmapPage;
357	STAMCOUNTER StatMapPageFailed;
358	STAMCOUNTER StatUnmapPageFailed;
359	#endif /* RT_OS_WINDOWS */
360	} NEM;
361	/** Pointer to NEM VM instance data. */
362	typedef NEM *PNEM;
363
364	/** NEM::u32Magic value. */
365	#define NEM_MAGIC UINT32_C(0x004d454e)
366	/** NEM::u32Magic value after termination. */
367	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
368
369
370	/**
371	* NEM VMCPU Instance data.
372	*/
373	typedef struct NEMCPU
374	{
375	/** NEMCPU_MAGIC. */
376	uint32_t u32Magic;
377	/** Whether \#UD needs to be intercepted and presented to GIM. */
378	bool fGIMTrapXcptUD : 1;
379	/** Whether \#GP needs to be intercept for mesa driver workaround. */
380	bool fTrapXcptGpForLovelyMesaDrv: 1;
381	/** Whether we should use the debug loop because of single stepping or special
382	* debug breakpoints / events are armed. */
383	bool fUseDebugLoop : 1;
384	/** Whether we're executing a single instruction. */
385	bool fSingleInstruction : 1;
386	/** Set if we using the debug loop and wish to intercept RDTSC. */
387	bool fDebugWantRdTscExit : 1;
388	/** Whether we are currently executing in the debug loop.
389	* Mainly for assertions. */
390	bool fUsingDebugLoop : 1;
391	/** Set if we need to clear the trap flag because of single stepping. */
392	bool fClearTrapFlag : 1;
393	/** Whether we're using the hyper DR7 or guest DR7. */
394	bool fUsingHyperDR7 : 1;
395	/** Whether \#DE needs to be intercepted for GIM. */
396	bool fGCMTrapXcptDE : 1;
397
398	#if defined(RT_OS_LINUX)
399	uint8_t abPadding[3];
400	/** The KVM VCpu file descriptor. */
401	int32_t fdVCpu;
402	/** Pointer to the KVM_RUN data exchange region. */
403	R3PTRTYPE(struct kvm_run *) pRun;
404	/** The MSR_IA32_APICBASE value known to KVM. */
405	uint64_t uKvmApicBase;
406
407	/** @name Statistics
408	* @{ */
409	STAMCOUNTER StatExitTotal;
410	STAMCOUNTER StatExitIo;
411	STAMCOUNTER StatExitMmio;
412	STAMCOUNTER StatExitSetTpr;
413	STAMCOUNTER StatExitTprAccess;
414	STAMCOUNTER StatExitRdMsr;
415	STAMCOUNTER StatExitWrMsr;
416	STAMCOUNTER StatExitIrqWindowOpen;
417	STAMCOUNTER StatExitHalt;
418	STAMCOUNTER StatExitIntr;
419	STAMCOUNTER StatExitHypercall;
420	STAMCOUNTER StatExitDebug;
421	STAMCOUNTER StatExitBusLock;
422	STAMCOUNTER StatExitInternalErrorEmulation;
423	STAMCOUNTER StatExitInternalErrorFatal;
424	# if 0
425	STAMCOUNTER StatExitCpuId;
426	STAMCOUNTER StatExitUnrecoverable;
427	STAMCOUNTER StatGetMsgTimeout;
428	STAMCOUNTER StatStopCpuSuccess;
429	STAMCOUNTER StatStopCpuPending;
430	STAMCOUNTER StatStopCpuPendingAlerts;
431	STAMCOUNTER StatStopCpuPendingOdd;
432	STAMCOUNTER StatCancelChangedState;
433	STAMCOUNTER StatCancelAlertedThread;
434	# endif
435	STAMCOUNTER StatBreakOnCancel;
436	STAMCOUNTER StatBreakOnFFPre;
437	STAMCOUNTER StatBreakOnFFPost;
438	STAMCOUNTER StatBreakOnStatus;
439	STAMCOUNTER StatFlushExitOnReturn;
440	STAMCOUNTER StatFlushExitOnReturn1Loop;
441	STAMCOUNTER StatFlushExitOnReturn2Loops;
442	STAMCOUNTER StatFlushExitOnReturn3Loops;
443	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
444	STAMCOUNTER StatImportOnDemand;
445	STAMCOUNTER StatImportOnReturn;
446	STAMCOUNTER StatImportOnReturnSkipped;
447	STAMCOUNTER StatImportPendingInterrupt;
448	STAMCOUNTER StatExportPendingInterrupt;
449	STAMCOUNTER StatQueryCpuTick;
450	/** @} */
451
452
453	#elif defined(RT_OS_WINDOWS)
454	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
455	uint8_t fCurrentInterruptWindows;
456	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
457	uint8_t fDesiredInterruptWindows;
458	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
459	bool fLastInterruptShadow : 1;
460	uint32_t uPadding;
461	/** The VID_MSHAGN_F_XXX flags.
462	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
463	uint32_t fHandleAndGetFlags;
464	/** What VidMessageSlotMap returns and is used for passing exit info. */
465	RTR3PTR pvMsgSlotMapping;
466	/** The windows thread handle. */
467	RTR3PTR hNativeThreadHandle;
468
469	/** @name Statistics
470	* @{ */
471	STAMCOUNTER StatExitPortIo;
472	STAMCOUNTER StatExitMemUnmapped;
473	STAMCOUNTER StatExitMemIntercept;
474	STAMCOUNTER StatExitHalt;
475	STAMCOUNTER StatExitInterruptWindow;
476	STAMCOUNTER StatExitCpuId;
477	STAMCOUNTER StatExitMsr;
478	STAMCOUNTER StatExitException;
479	STAMCOUNTER StatExitExceptionBp;
480	STAMCOUNTER StatExitExceptionDb;
481	STAMCOUNTER StatExitExceptionGp;
482	STAMCOUNTER StatExitExceptionGpMesa;
483	STAMCOUNTER StatExitExceptionUd;
484	STAMCOUNTER StatExitExceptionUdHandled;
485	STAMCOUNTER StatExitUnrecoverable;
486	STAMCOUNTER StatGetMsgTimeout;
487	STAMCOUNTER StatStopCpuSuccess;
488	STAMCOUNTER StatStopCpuPending;
489	STAMCOUNTER StatStopCpuPendingAlerts;
490	STAMCOUNTER StatStopCpuPendingOdd;
491	STAMCOUNTER StatCancelChangedState;
492	STAMCOUNTER StatCancelAlertedThread;
493	STAMCOUNTER StatBreakOnCancel;
494	STAMCOUNTER StatBreakOnFFPre;
495	STAMCOUNTER StatBreakOnFFPost;
496	STAMCOUNTER StatBreakOnStatus;
497	STAMCOUNTER StatImportOnDemand;
498	STAMCOUNTER StatImportOnReturn;
499	STAMCOUNTER StatImportOnReturnSkipped;
500	STAMCOUNTER StatQueryCpuTick;
501	/** @} */
502
503	#elif defined(RT_OS_DARWIN)
504	# if defined(VBOX_VMM_TARGET_ARMV8)
505	/** The vCPU handle associated with the EMT executing this vCPU. */
506	hv_vcpu_t hVCpu;
507	/** Pointer to the exit information structure. */
508	hv_vcpu_exit_t *pHvExit;
509	/** Flag whether an event is pending. */
510	bool fEventPending;
511	/** Flag whether the vTimer got activated and is masked. */
512	bool fVTimerActivated;
513	/** Flag whether to update the vTimer offset. */
514	bool fVTimerOffUpdate;
515	# else
516	/** The vCPU handle associated with the EMT executing this vCPU. */
517	hv_vcpuid_t hVCpuId;
518
519	/** @name State shared with the VT-x code.
520	* @{ */
521	/** An additional error code used for some gurus. */
522	uint32_t u32HMError;
523	/** The last exit-to-ring-3 reason. */
524	int32_t rcLastExitToR3;
525	/** CPU-context changed flags (see HM_CHANGED_xxx). */
526	uint64_t fCtxChanged;
527
528	/** The guest VMCS information. */
529	VMXVMCSINFO VmcsInfo;
530
531	/** VT-x data. */
532	struct HMCPUVMX
533	{
534	/** @name Guest information.
535	* @{ */
536	/** Guest VMCS information shared with ring-3. */
537	VMXVMCSINFOSHARED VmcsInfo;
538	/** Nested-guest VMCS information shared with ring-3. */
539	VMXVMCSINFOSHARED VmcsInfoNstGst;
540	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
541	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
542	bool fSwitchedToNstGstVmcsCopyForRing3;
543	/** Whether the static guest VMCS controls has been merged with the
544	* nested-guest VMCS controls. */
545	bool fMergedNstGstCtls;
546	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
547	bool fCopiedNstGstToShadowVmcs;
548	/** Whether flushing the TLB is required due to switching to/from the
549	* nested-guest. */
550	bool fSwitchedNstGstFlushTlb;
551	/** Alignment. */
552	bool afAlignment0[4];
553	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
554	uint64_t u64GstMsrApicBase;
555	/** @} */
556
557	/** @name Error reporting and diagnostics.
558	* @{ */
559	/** VT-x error-reporting (mainly for ring-3 propagation). */
560	struct
561	{
562	RTCPUID idCurrentCpu;
563	RTCPUID idEnteredCpu;
564	RTHCPHYS HCPhysCurrentVmcs;
565	uint32_t u32VmcsRev;
566	uint32_t u32InstrError;
567	uint32_t u32ExitReason;
568	uint32_t u32GuestIntrState;
569	} LastError;
570	/** @} */
571	} vmx;
572
573	/** Event injection state. */
574	HMEVENT Event;
575
576	/** Current shadow paging mode for updating CR4.
577	* @todo move later (@bugref{9217}). */
578	PGMMODE enmShadowMode;
579	uint32_t u32TemporaryPadding;
580
581	/** The PAE PDPEs used with Nested Paging (only valid when
582	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
583	X86PDPE aPdpes[4];
584	/** Pointer to the VMX statistics. */
585	PVMXSTATISTICS pVmxStats;
586	# endif
587
588	/** @name Statistics
589	* @{ */
590	STAMCOUNTER StatExitAll;
591	STAMCOUNTER StatBreakOnCancel;
592	STAMCOUNTER StatBreakOnFFPre;
593	STAMCOUNTER StatBreakOnFFPost;
594	STAMCOUNTER StatBreakOnStatus;
595	STAMCOUNTER StatImportOnDemand;
596	STAMCOUNTER StatImportOnReturn;
597	STAMCOUNTER StatImportOnReturnSkipped;
598	STAMCOUNTER StatQueryCpuTick;
599	#ifdef VBOX_WITH_STATISTICS
600	STAMPROFILEADV StatProfGstStateImport;
601	STAMPROFILEADV StatProfGstStateExport;
602	#endif
603	/** @} */
604
605	/** @} */
606	#endif /* RT_OS_DARWIN */
607	} NEMCPU;
608	/** Pointer to NEM VMCPU instance data. */
609	typedef NEMCPU *PNEMCPU;
610
611	/** NEMCPU::u32Magic value. */
612	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
613	/** NEMCPU::u32Magic value after termination. */
614	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
615
616
617	#ifdef IN_RING0
618	# ifdef RT_OS_WINDOWS
619	/**
620	* Windows: Hypercall input/ouput page info.
621	*/
622	typedef struct NEMR0HYPERCALLDATA
623	{
624	/** Host physical address of the hypercall input/output page. */
625	RTHCPHYS HCPhysPage;
626	/** Pointer to the hypercall input/output page. */
627	uint8_t *pbPage;
628	/** Handle to the memory object of the hypercall input/output page. */
629	RTR0MEMOBJ hMemObj;
630	} NEMR0HYPERCALLDATA;
631	/** Pointer to a Windows hypercall input/output page info. */
632	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
633	# endif /* RT_OS_WINDOWS */
634
635	/**
636	* NEM GVMCPU instance data.
637	*/
638	typedef struct NEMR0PERVCPU
639	{
640	uint32_t uDummy;
641	} NEMR0PERVCPU;
642
643	/**
644	* NEM GVM instance data.
645	*/
646	typedef struct NEMR0PERVM
647	{
648	uint32_t uDummy;
649	} NEMR0PERVM;
650
651	#endif /* IN_RING*/
652
653
654	#ifdef IN_RING3
655
656	int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
657
658	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
659	int nemR3NativeInitAfterCPUM(PVM pVM);
660	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
661	int nemR3NativeTerm(PVM pVM);
662	void nemR3NativeReset(PVM pVM);
663	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
664	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
665	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
666	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
667
668	/**
669	* Forced flag notification call from VMEmt.h.
670	*
671	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
672	*
673	* @param pVM The cross context VM structure.
674	* @param pVCpu The cross context virtual CPU structure of the CPU
675	* to be notified.
676	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
677	*/
678	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
679
680	/**
681	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
682	* on whether to switch to the debug loop.
683	*
684	* @returns Final flag whether to switch to the debug loop.
685	* @param pVM The VM cross context VM structure.
686	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
687	* @thread EMT(0)
688	*/
689	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
690
691
692	/**
693	* Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
694	* on whether to switch to the debug loop.
695	*
696	* @returns Final flag whether to switch to the debug loop.
697	* @param pVM The VM cross context VM structure.
698	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
699	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
700	*/
701	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
702
703	#endif /* IN_RING3 */
704
705	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
706	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
707	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
708	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
709	PGMPAGETYPE enmType, uint8_t *pu2State);
710
711
712	#ifdef RT_OS_WINDOWS
713	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
714	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
715	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
716	# define NEM_MAX_UNMAP_PAGES 4095
717
718	#endif
719	/** @} */
720
721	RT_C_DECLS_END
722
723	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
724

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 100705

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