NEMInternal.h

Last change on this file was 108758, checked in by vboxsync, 6 weeks ago
VMM/Arm: Add ACTLR_EL1 to the CPU state, bugref:10392
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1	/* $Id: NEMInternal.h 108758 2025-03-26 16:05:20Z vboxsync $ */
2	/** @file
3	* NEM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2018-2024 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	# ifdef 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	# ifndef 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	/** The CPUMCTX_EXTRN_XXX mask for IEM. */
131	# ifdef VBOX_VMM_TARGET_ARMV8
132	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK )
133	# else
134	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM ( IEM_CPUMCTX_EXTRN_MUST_MASK \
135	\| CPUMCTX_EXTRN_INHIBIT_INT \| CPUMCTX_EXTRN_INHIBIT_NMI )
136	# endif
137
138	/** The CPUMCTX_EXTRN_XXX mask for IEM when raising exceptions. */
139	# define NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM_XCPT (IEM_CPUMCTX_EXTRN_XCPT_MASK \| NEM_DARWIN_CPUMCTX_EXTRN_MASK_FOR_IEM)
140
141
142	# ifdef VBOX_VMM_TARGET_ARMV8
143	/**
144	* MMIO2 tracking region.
145	*/
146	typedef struct
147	{
148	/* Start of the region. */
149	RTGCPHYS GCPhysStart;
150	/** End of the region. */
151	RTGCPHYS GCPhysLast;
152	/** Whether the region was accessed since last time. */
153	bool fDirty;
154	} NEMHVMMIO2REGION;
155	/** Pointer to a MMIO2 tracking region. */
156	typedef NEMHVMMIO2REGION *PNEMHVMMIO2REGION;
157	# endif
158
159	#endif
160
161
162	/** Trick to make slickedit see the static functions in the template. */
163	#ifndef IN_SLICKEDIT
164	# define NEM_TMPL_STATIC static
165	#else
166	# define NEM_TMPL_STATIC
167	#endif
168
169
170	/**
171	* Generic NEM exit type enumeration for use with EMHistoryAddExit.
172	*
173	* On windows we've got two different set of exit types and they are both jumping
174	* around the place value wise, so EM can use their values.
175	*
176	* @note We only have exit types for exits not covered by EM here.
177	*/
178	typedef enum NEMEXITTYPE
179	{
180	NEMEXITTYPE_INVALID = 0,
181
182	/* Common: */
183	NEMEXITTYPE_INTTERRUPT_WINDOW,
184	NEMEXITTYPE_HALT,
185
186	/* Windows: */
187	NEMEXITTYPE_UNRECOVERABLE_EXCEPTION,
188	NEMEXITTYPE_INVALID_VP_REGISTER_VALUE,
189	NEMEXITTYPE_XCPT_UD,
190	NEMEXITTYPE_XCPT_DB,
191	NEMEXITTYPE_XCPT_BP,
192	NEMEXITTYPE_CANCELED,
193	NEMEXITTYPE_MEMORY_ACCESS,
194
195	/* Linux: */
196	NEMEXITTYPE_INTERNAL_ERROR_EMULATION,
197	NEMEXITTYPE_INTERNAL_ERROR_FATAL,
198	NEMEXITTYPE_INTERRUPTED,
199	NEMEXITTYPE_FAILED_ENTRY,
200
201	/* End of valid types. */
202	NEMEXITTYPE_END
203	} NEMEXITTYPE;
204
205
206	/**
207	* NEM VM Instance data.
208	*/
209	typedef struct NEM
210	{
211	/** NEM_MAGIC. */
212	uint32_t u32Magic;
213
214	/** Set if enabled. */
215	bool fEnabled;
216	/** Set if long mode guests are allowed. */
217	bool fAllow64BitGuests;
218	/** Set when the debug facility has breakpoints/events enabled that requires
219	* us to use the debug execution loop. */
220	bool fUseDebugLoop;
221
222	#ifdef VBOX_VMM_TARGET_ARMV8
223	/** The PPI interrupt number of the vTimer. */
224	uint32_t u32GicPpiVTimer;
225	#endif
226
227	#if defined(RT_OS_LINUX)
228	/** The '/dev/kvm' file descriptor. */
229	int32_t fdKvm;
230	/** The KVM_CREATE_VM file descriptor. */
231	int32_t fdVm;
232
233	/** KVM_GET_VCPU_MMAP_SIZE. */
234	uint32_t cbVCpuMmap;
235	/** KVM_CAP_NR_MEMSLOTS. */
236	uint32_t cMaxMemSlots;
237	# ifdef RT_ARCH_ARM64
238	/** KVM_CAP_ARM_VM_IPA_SIZE. */
239	uint32_t cIpaBits;
240	# else
241	/** KVM_CAP_X86_ROBUST_SINGLESTEP. */
242	bool fRobustSingleStep;
243	# endif
244
245	/** Hint where there might be a free slot. */
246	uint16_t idPrevSlot;
247	/** Memory slot ID allocation bitmap. */
248	uint64_t bmSlotIds[_32K / 8 / sizeof(uint64_t)];
249
250	#elif defined(RT_OS_WINDOWS)
251	/** Set if we've created the EMTs. */
252	bool fCreatedEmts : 1;
253	# ifdef VBOX_VMM_TARGET_ARMV8
254	bool fHypercallExit : 1;
255	bool fGpaAccessFaultExit : 1;
256	/** Cache line flush size as a power of two. */
257	uint8_t cPhysicalAddressWidth;
258	# elif defined(VBOX_VMM_TARGET_X86)
259	/** WHvRunVpExitReasonX64Cpuid is supported. */
260	bool fExtendedMsrExit : 1;
261	/** WHvRunVpExitReasonX64MsrAccess is supported. */
262	bool fExtendedCpuIdExit : 1;
263	/** WHvRunVpExitReasonException is supported. */
264	bool fExtendedXcptExit : 1;
265	/** Copy of WHV_CAPABILITY_FEATURES::SpeculationControl. */
266	bool fSpeculationControl : 1;
267	/** Whether to export/import IA32_SPEC_CTRL. */
268	bool fDoIa32SpecCtrl : 1;
269	/** WHvX64LocalApicEmulationModeXApic is used. */
270	bool fLocalApicEmulation : 1;
271	# ifdef NEM_WIN_WITH_A20
272	/** Set if we've started more than one CPU and cannot mess with A20. */
273	bool fA20Fixed : 1;
274	/** Set if A20 is enabled. */
275	bool fA20Enabled : 1;
276	# endif
277	# endif
278	/** The reported CPU vendor. */
279	CPUMCPUVENDOR enmCpuVendor;
280	/** Cache line flush size as a power of two. */
281	uint8_t cCacheLineFlushShift;
282	/** The result of WHvCapabilityCodeProcessorFeatures. */
283	union
284	{
285	/** 64-bit view. */
286	uint64_t u64;
287	# ifdef _WINHVAPIDEFS_H_
288	/** Interpreted features. */
289	WHV_PROCESSOR_FEATURES u;
290	# endif
291	} uCpuFeatures;
292
293	/** The partition handle. */
294	# ifdef _WINHVAPIDEFS_H_
295	WHV_PARTITION_HANDLE
296	# else
297	RTHCUINTPTR
298	# endif
299	hPartition;
300	/** The device handle for the partition, for use with Vid APIs or direct I/O
301	* controls. */
302	RTR3PTR hPartitionDevice;
303
304	/** Number of currently mapped pages. */
305	uint32_t volatile cMappedPages;
306	uint32_t u32Padding;
307	STAMCOUNTER StatMapPage;
308	STAMCOUNTER StatUnmapPage;
309	STAMCOUNTER StatMapPageFailed;
310	STAMCOUNTER StatUnmapPageFailed;
311	STAMPROFILE StatProfMapGpaRange;
312	STAMPROFILE StatProfUnmapGpaRange;
313	STAMPROFILE StatProfMapGpaRangePage;
314	STAMPROFILE StatProfUnmapGpaRangePage;
315
316	/** Statistics updated by NEMR0UpdateStatistics. */
317	struct
318	{
319	uint64_t cPagesAvailable;
320	uint64_t cPagesInUse;
321	} R0Stats;
322
323	# ifdef VBOX_VMM_TARGET_ARMV8
324	/** Re-distributor memory region for all vCPUs. */
325	RTGCPHYS GCPhysMmioBaseReDist;
326	/** Number of breakpoints supported (for syncing registers). */
327	uint32_t cBreakpoints;
328	/** Number of watchpoints supported (for syncing registers). */
329	uint32_t cWatchpoints;
330	# endif
331
332	#elif defined(RT_OS_DARWIN)
333	/** Set if we've created the EMTs. */
334	bool fCreatedEmts : 1;
335	/** Set if hv_vm_create() was called successfully. */
336	bool fCreatedVm : 1;
337	/** Set if EL2 is enabled. */
338	bool fEl2Enabled : 1;
339	/** Set if we are running at least on macOS Sequioa 15.0. */
340	bool fMacOsSequia : 1;
341	# ifdef VBOX_VMM_TARGET_ARMV8
342	/** @name vTimer related state.
343	* @{ */
344	/** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
345	uint64_t u64CntFrqHz;
346	/** The vTimer offset programmed. */
347	uint64_t u64VTimerOff;
348	/** Dirty tracking slots. */
349	NEMHVMMIO2REGION aMmio2DirtyTracking[8];
350	/** The vCPU config. */
351	hv_vcpu_config_t hVCpuCfg;
352	/** @} */
353	# elif defined(VBOX_VMM_TARGET_X86)
354	/** Set if hv_vm_space_create() was called successfully. */
355	bool fCreatedAsid : 1;
356	/** Set if Last Branch Record (LBR) is enabled. */
357	bool fLbr;
358	/** The ASID for this VM (only valid if fCreatedAsid is true). */
359	hv_vm_space_t uVmAsid;
360	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
361	uint64_t cMachTimePerNs;
362	/** Pause-loop exiting (PLE) gap in ticks. */
363	uint32_t cPleGapTicks;
364	/** Pause-loop exiting (PLE) window in ticks. */
365	uint32_t cPleWindowTicks;
366
367	/** The host LBR TOS (top-of-stack) MSR id. */
368	uint32_t idLbrTosMsr;
369	/** The host LBR select MSR id. */
370	uint32_t idLbrSelectMsr;
371	/** The host last event record from IP MSR id. */
372	uint32_t idLerFromIpMsr;
373	/** The host last event record to IP MSR id. */
374	uint32_t idLerToIpMsr;
375
376	/** The first valid host LBR branch-from-IP stack range. */
377	uint32_t idLbrFromIpMsrFirst;
378	/** The last valid host LBR branch-from-IP stack range. */
379	uint32_t idLbrFromIpMsrLast;
380
381	/** The first valid host LBR branch-to-IP stack range. */
382	uint32_t idLbrToIpMsrFirst;
383	/** The last valid host LBR branch-to-IP stack range. */
384	uint32_t idLbrToIpMsrLast;
385
386	/** The first valid host LBR info stack range. */
387	uint32_t idLbrInfoMsrFirst;
388	/** The last valid host LBR info stack range. */
389	uint32_t idLbrInfoMsrLast;
390	# endif /* VBOX_VMM_TARGET_X86 */
391
392	STAMCOUNTER StatMapPage;
393	STAMCOUNTER StatUnmapPage;
394	STAMCOUNTER StatMapPageFailed;
395	STAMCOUNTER StatUnmapPageFailed;
396	#endif /* RT_OS_DARWIN */
397	} NEM;
398	/** Pointer to NEM VM instance data. */
399	typedef NEM *PNEM;
400
401	/** NEM::u32Magic value. */
402	#define NEM_MAGIC UINT32_C(0x004d454e)
403	/** NEM::u32Magic value after termination. */
404	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
405
406
407	/**
408	* NEM VMCPU Instance data.
409	*/
410	typedef struct NEMCPU
411	{
412	/** NEMCPU_MAGIC. */
413	uint32_t u32Magic;
414	/** Whether \#UD needs to be intercepted and presented to GIM. */
415	bool fGIMTrapXcptUD : 1;
416	/** Whether \#GP needs to be intercept for mesa driver workaround. */
417	bool fTrapXcptGpForLovelyMesaDrv: 1;
418	/** Whether we should use the debug loop because of single stepping or special
419	* debug breakpoints / events are armed. */
420	bool fUseDebugLoop : 1;
421	/** Whether we're executing a single instruction. */
422	bool fSingleInstruction : 1;
423	/** Set if we using the debug loop and wish to intercept RDTSC. */
424	bool fDebugWantRdTscExit : 1;
425	/** Whether we are currently executing in the debug loop.
426	* Mainly for assertions. */
427	bool fUsingDebugLoop : 1;
428	/** Set if we need to clear the trap flag because of single stepping. */
429	bool fClearTrapFlag : 1;
430	/** Whether we're using the hyper DR7 or guest DR7. */
431	bool fUsingHyperDR7 : 1;
432	/** Whether \#DE needs to be intercepted for GIM. */
433	bool fGCMTrapXcptDE : 1;
434	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
435	/** Set if indirect branch prediction barrier on VM exit. */
436	bool fIbpbOnVmExit : 1;
437	/** Set if indirect branch prediction barrier on VM entry. */
438	bool fIbpbOnVmEntry : 1;
439	/** Set if level 1 data cache should be flushed on VM entry. */
440	bool fL1dFlushOnVmEntry : 1;
441	/** Set if level 1 data cache should be flushed on EMT scheduling. */
442	bool fL1dFlushOnSched : 1;
443	/** Set if MDS related buffers should be cleared on VM entry. */
444	bool fMdsClearOnVmEntry : 1;
445	/** Set if MDS related buffers should be cleared on EMT scheduling. */
446	bool fMdsClearOnSched : 1;
447	#endif
448
449	#if defined(RT_OS_LINUX)
450	uint8_t abPadding[3];
451	/** The KVM VCpu file descriptor. */
452	int32_t fdVCpu;
453	/** Pointer to the KVM_RUN data exchange region. */
454	R3PTRTYPE(struct kvm_run *) pRun;
455	# ifdef VBOX_VMM_TARGET_ARMV8
456	/** The IRQ device levels from device_irq_level. */
457	uint64_t fIrqDeviceLvls;
458	/** Status of the IRQ line when last seen. */
459	bool fIrqLastSeen;
460	/** Status of the FIQ line when last seen. */
461	bool fFiqLastSeen;
462	# elif defined(VBOX_VMM_TARGET_X86)
463	/** The MSR_IA32_APICBASE value known to KVM. */
464	uint64_t uKvmApicBase;
465	# endif
466
467	/** @name Statistics
468	* @{ */
469	STAMCOUNTER StatExitTotal;
470	STAMCOUNTER StatExitIo;
471	STAMCOUNTER StatExitMmio;
472	STAMCOUNTER StatExitSetTpr;
473	STAMCOUNTER StatExitTprAccess;
474	STAMCOUNTER StatExitRdMsr;
475	STAMCOUNTER StatExitWrMsr;
476	STAMCOUNTER StatExitIrqWindowOpen;
477	STAMCOUNTER StatExitHalt;
478	STAMCOUNTER StatExitIntr;
479	STAMCOUNTER StatExitHypercall;
480	STAMCOUNTER StatExitDebug;
481	STAMCOUNTER StatExitBusLock;
482	STAMCOUNTER StatExitInternalErrorEmulation;
483	STAMCOUNTER StatExitInternalErrorFatal;
484	# if 0
485	STAMCOUNTER StatExitCpuId;
486	STAMCOUNTER StatExitUnrecoverable;
487	STAMCOUNTER StatGetMsgTimeout;
488	STAMCOUNTER StatStopCpuSuccess;
489	STAMCOUNTER StatStopCpuPending;
490	STAMCOUNTER StatStopCpuPendingAlerts;
491	STAMCOUNTER StatStopCpuPendingOdd;
492	STAMCOUNTER StatCancelChangedState;
493	STAMCOUNTER StatCancelAlertedThread;
494	# endif
495	STAMCOUNTER StatBreakOnCancel;
496	STAMCOUNTER StatBreakOnFFPre;
497	STAMCOUNTER StatBreakOnFFPost;
498	STAMCOUNTER StatBreakOnStatus;
499	STAMCOUNTER StatFlushExitOnReturn;
500	STAMCOUNTER StatFlushExitOnReturn1Loop;
501	STAMCOUNTER StatFlushExitOnReturn2Loops;
502	STAMCOUNTER StatFlushExitOnReturn3Loops;
503	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
504	STAMCOUNTER StatImportOnDemand;
505	STAMCOUNTER StatImportOnReturn;
506	STAMCOUNTER StatImportOnReturnSkipped;
507	STAMCOUNTER StatImportPendingInterrupt;
508	STAMCOUNTER StatExportPendingInterrupt;
509	STAMCOUNTER StatQueryCpuTick;
510	/** @} */
511
512
513	#elif defined(RT_OS_WINDOWS)
514	# ifdef VBOX_VMM_TARGET_X86
515	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
516	uint8_t fCurrentInterruptWindows;
517	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
518	uint8_t fDesiredInterruptWindows;
519	/** Cached TPR value. */
520	uint8_t bTpr;
521	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
522	bool fLastInterruptShadow : 1;
523	/** Flag whether the IRQ window notification was registered (for injecting PIC interrupts). */
524	bool fIrqWindowRegistered: 1;
525	/** Flag whether it is possible inject a PIC interrupt. */
526	bool fPicReadyForInterrupt: 1;
527	uint32_t uPadding;
528	/** The VID_MSHAGN_F_XXX flags.
529	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
530	uint32_t fHandleAndGetFlags;
531	/** What VidMessageSlotMap returns and is used for passing exit info. */
532	RTR3PTR pvMsgSlotMapping;
533	/** The windows thread handle. */
534	RTR3PTR hNativeThreadHandle;
535	# elif defined(VBOX_VMM_TARGET_ARMV8)
536	/** Flag whether syncing the CNTV_CTL_EL0/CNTV_CVAL_EL0 registers to Hyper-V is required. */
537	bool fSyncCntvRegs;
538	# endif
539
540	/** @name Statistics
541	* @{ */
542	STAMCOUNTER StatExitPortIo;
543	STAMCOUNTER StatExitMemUnmapped;
544	STAMCOUNTER StatExitMemIntercept;
545	STAMCOUNTER StatExitHalt;
546	STAMCOUNTER StatExitInterruptWindow;
547	STAMCOUNTER StatExitCpuId;
548	STAMCOUNTER StatExitMsr;
549	STAMCOUNTER StatExitException;
550	STAMCOUNTER StatExitExceptionBp;
551	STAMCOUNTER StatExitExceptionDb;
552	STAMCOUNTER StatExitExceptionGp;
553	STAMCOUNTER StatExitExceptionGpMesa;
554	STAMCOUNTER StatExitExceptionUd;
555	STAMCOUNTER StatExitExceptionUdHandled;
556	STAMCOUNTER StatExitUnrecoverable;
557	STAMCOUNTER StatGetMsgTimeout;
558	STAMCOUNTER StatStopCpuSuccess;
559	STAMCOUNTER StatStopCpuPending;
560	STAMCOUNTER StatStopCpuPendingAlerts;
561	STAMCOUNTER StatStopCpuPendingOdd;
562	STAMCOUNTER StatCancelChangedState;
563	STAMCOUNTER StatCancelAlertedThread;
564	STAMCOUNTER StatBreakOnCancel;
565	STAMCOUNTER StatBreakOnFFPre;
566	STAMCOUNTER StatBreakOnFFPost;
567	STAMCOUNTER StatBreakOnStatus;
568	STAMCOUNTER StatImportOnDemand;
569	STAMCOUNTER StatImportOnReturn;
570	STAMCOUNTER StatImportOnReturnSkipped;
571	STAMCOUNTER StatQueryCpuTick;
572	/** @} */
573
574	#elif defined(RT_OS_DARWIN)
575	# ifdef VBOX_VMM_TARGET_ARMV8
576	/** The vCPU handle associated with the EMT executing this vCPU. */
577	hv_vcpu_t hVCpu;
578	/** Pointer to the exit information structure. */
579	hv_vcpu_exit_t *pHvExit;
580	/** Flag whether an event is pending. */
581	bool fEventPending;
582	/** Flag whether the vTimer got activated and is masked. */
583	bool fVTimerActivated;
584	/** Flag whether to update the vTimer offset. */
585	bool fVTimerOffUpdate;
586	/** Flag whether the ID registers were synced to the guest context
587	* (for first guest exec call on the EMT after loading the saved state). */
588	bool fIdRegsSynced;
589
590	# elif defined(VBOX_VMM_TARGET_X86)
591	/** The vCPU handle associated with the EMT executing this vCPU. */
592	hv_vcpuid_t hVCpuId;
593
594	/** @name State shared with the VT-x code.
595	* @{ */
596	/** An additional error code used for some gurus. */
597	uint32_t u32HMError;
598	/** The last exit-to-ring-3 reason. */
599	int32_t rcLastExitToR3;
600	/** CPU-context changed flags (see HM_CHANGED_xxx). */
601	uint64_t fCtxChanged;
602
603	/** The guest VMCS information. */
604	VMXVMCSINFO VmcsInfo;
605
606	/** VT-x data. */
607	struct HMCPUVMX
608	{
609	/** @name Guest information.
610	* @{ */
611	/** Guest VMCS information shared with ring-3. */
612	VMXVMCSINFOSHARED VmcsInfo;
613	/** Nested-guest VMCS information shared with ring-3. */
614	VMXVMCSINFOSHARED VmcsInfoNstGst;
615	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
616	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
617	bool fSwitchedToNstGstVmcsCopyForRing3;
618	/** Whether the static guest VMCS controls has been merged with the
619	* nested-guest VMCS controls. */
620	bool fMergedNstGstCtls;
621	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
622	bool fCopiedNstGstToShadowVmcs;
623	/** Whether flushing the TLB is required due to switching to/from the
624	* nested-guest. */
625	bool fSwitchedNstGstFlushTlb;
626	/** Alignment. */
627	bool afAlignment0[4];
628	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
629	uint64_t u64GstMsrApicBase;
630	/** @} */
631
632	/** @name Error reporting and diagnostics.
633	* @{ */
634	/** VT-x error-reporting (mainly for ring-3 propagation). */
635	struct
636	{
637	RTCPUID idCurrentCpu;
638	RTCPUID idEnteredCpu;
639	RTHCPHYS HCPhysCurrentVmcs;
640	uint32_t u32VmcsRev;
641	uint32_t u32InstrError;
642	uint32_t u32ExitReason;
643	uint32_t u32GuestIntrState;
644	} LastError;
645	/** @} */
646	} vmx;
647
648	/** Event injection state. */
649	HMEVENT Event;
650
651	/** Current shadow paging mode for updating CR4.
652	* @todo move later (@bugref{9217}). */
653	PGMMODE enmShadowMode;
654	uint32_t u32TemporaryPadding;
655
656	/** The PAE PDPEs used with Nested Paging (only valid when
657	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
658	X86PDPE aPdpes[4];
659	/** Pointer to the VMX statistics. */
660	PVMXSTATISTICS pVmxStats;
661	# endif /* VBOX_VMM_TARGET_X86 */
662
663	/** @name Statistics
664	* @{ */
665	STAMCOUNTER StatExitAll;
666	STAMCOUNTER StatBreakOnCancel;
667	STAMCOUNTER StatBreakOnFFPre;
668	STAMCOUNTER StatBreakOnFFPost;
669	STAMCOUNTER StatBreakOnStatus;
670	STAMCOUNTER StatImportOnDemand;
671	STAMCOUNTER StatImportOnReturn;
672	STAMCOUNTER StatImportOnReturnSkipped;
673	STAMCOUNTER StatQueryCpuTick;
674	# ifdef VBOX_WITH_STATISTICS
675	STAMPROFILEADV StatProfGstStateImport;
676	STAMPROFILEADV StatProfGstStateExport;
677	# endif
678	/** @} */
679
680	/** @} */
681	#endif /* RT_OS_DARWIN */
682	} NEMCPU;
683	/** Pointer to NEM VMCPU instance data. */
684	typedef NEMCPU *PNEMCPU;
685
686	/** NEMCPU::u32Magic value. */
687	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
688	/** NEMCPU::u32Magic value after termination. */
689	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
690
691
692	#ifdef IN_RING0
693	# ifdef RT_OS_WINDOWS
694	/**
695	* Windows: Hypercall input/ouput page info.
696	*/
697	typedef struct NEMR0HYPERCALLDATA
698	{
699	/** Host physical address of the hypercall input/output page. */
700	RTHCPHYS HCPhysPage;
701	/** Pointer to the hypercall input/output page. */
702	uint8_t *pbPage;
703	/** Handle to the memory object of the hypercall input/output page. */
704	RTR0MEMOBJ hMemObj;
705	} NEMR0HYPERCALLDATA;
706	/** Pointer to a Windows hypercall input/output page info. */
707	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
708	# endif /* RT_OS_WINDOWS */
709
710	/**
711	* NEM GVMCPU instance data.
712	*/
713	typedef struct NEMR0PERVCPU
714	{
715	uint32_t uDummy;
716	} NEMR0PERVCPU;
717
718	/**
719	* NEM GVM instance data.
720	*/
721	typedef struct NEMR0PERVM
722	{
723	uint32_t uDummy;
724	} NEMR0PERVM;
725
726	#endif /* IN_RING*/
727
728
729	#ifdef IN_RING3
730
731	int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
732
733	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
734	int nemR3NativeInitAfterCPUM(PVM pVM);
735	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
736	int nemR3NativeTerm(PVM pVM);
737	void nemR3NativeReset(PVM pVM);
738	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
739	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
740	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
741	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
742
743
744	/**
745	* Forced flag notification call from VMEmt.h.
746	*
747	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
748	*
749	* @param pVM The cross context VM structure.
750	* @param pVCpu The cross context virtual CPU structure of the CPU
751	* to be notified.
752	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
753	*/
754	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
755
756	/**
757	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
758	* on whether to switch to the debug loop.
759	*
760	* @returns Final flag whether to switch to the debug loop.
761	* @param pVM The VM cross context VM structure.
762	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
763	* @thread EMT(0)
764	*/
765	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
766
767
768	/**
769	* Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
770	* on whether to switch to the debug loop.
771	*
772	* @returns Final flag whether to switch to the debug loop.
773	* @param pVM The VM cross context VM structure.
774	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
775	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
776	*/
777	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
778
779	#endif /* IN_RING3 */
780
781	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
782	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
783	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
784	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
785	PGMPAGETYPE enmType, uint8_t *pu2State);
786
787
788	#ifdef RT_OS_WINDOWS
789	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
790	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
791	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
792	# define NEM_MAX_UNMAP_PAGES 4095
793
794	#endif
795	/** @} */
796
797	RT_C_DECLS_END
798
799	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
800

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

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