NEMInternal.h@ 107922

Last change on this file since 107922 was 107862, checked in by vboxsync, 3 weeks ago
VMM/NEM-win: Export & import IA32_SPEC_CTRL state. jiraref:VBP-947 bugref:10738
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1	/* $Id: NEMInternal.h 107862 2025-01-20 20:15:00Z 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.virtualbox.org.
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	# ifdef NEM_WIN_WITH_A20
268	/** Set if we've started more than one CPU and cannot mess with A20. */
269	bool fA20Fixed : 1;
270	/** Set if A20 is enabled. */
271	bool fA20Enabled : 1;
272	# endif
273	# endif
274	/** The reported CPU vendor. */
275	CPUMCPUVENDOR enmCpuVendor;
276	/** Cache line flush size as a power of two. */
277	uint8_t cCacheLineFlushShift;
278	/** The result of WHvCapabilityCodeProcessorFeatures. */
279	union
280	{
281	/** 64-bit view. */
282	uint64_t u64;
283	# ifdef _WINHVAPIDEFS_H_
284	/** Interpreed features. */
285	WHV_PROCESSOR_FEATURES u;
286	# endif
287	} uCpuFeatures;
288
289	/** The partition handle. */
290	# ifdef _WINHVAPIDEFS_H_
291	WHV_PARTITION_HANDLE
292	# else
293	RTHCUINTPTR
294	# endif
295	hPartition;
296	/** The device handle for the partition, for use with Vid APIs or direct I/O
297	* controls. */
298	RTR3PTR hPartitionDevice;
299
300	/** Number of currently mapped pages. */
301	uint32_t volatile cMappedPages;
302	uint32_t u32Padding;
303	STAMCOUNTER StatMapPage;
304	STAMCOUNTER StatUnmapPage;
305	STAMCOUNTER StatMapPageFailed;
306	STAMCOUNTER StatUnmapPageFailed;
307	STAMPROFILE StatProfMapGpaRange;
308	STAMPROFILE StatProfUnmapGpaRange;
309	STAMPROFILE StatProfMapGpaRangePage;
310	STAMPROFILE StatProfUnmapGpaRangePage;
311
312	/** Statistics updated by NEMR0UpdateStatistics. */
313	struct
314	{
315	uint64_t cPagesAvailable;
316	uint64_t cPagesInUse;
317	} R0Stats;
318
319	# ifdef VBOX_VMM_TARGET_ARMV8
320	/** Re-distributor memory region for all vCPUs. */
321	RTGCPHYS GCPhysMmioBaseReDist;
322	/** Number of breakpoints supported (for syncing registers). */
323	uint32_t cBreakpoints;
324	/** Number of watchpoints supported (for syncing registers). */
325	uint32_t cWatchpoints;
326	# endif
327
328	#elif defined(RT_OS_DARWIN)
329	/** Set if we've created the EMTs. */
330	bool fCreatedEmts : 1;
331	/** Set if hv_vm_create() was called successfully. */
332	bool fCreatedVm : 1;
333	/** Set if EL2 is enabled. */
334	bool fEl2Enabled : 1;
335	# ifdef VBOX_VMM_TARGET_ARMV8
336	/** @name vTimer related state.
337	* @{ */
338	/** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
339	uint64_t u64CntFrqHz;
340	/** The vTimer offset programmed. */
341	uint64_t u64VTimerOff;
342	/** Dirty tracking slots. */
343	NEMHVMMIO2REGION aMmio2DirtyTracking[8];
344	/** The vCPU config. */
345	hv_vcpu_config_t hVCpuCfg;
346	/** @} */
347	# elif defined(VBOX_VMM_TARGET_X86)
348	/** Set if hv_vm_space_create() was called successfully. */
349	bool fCreatedAsid : 1;
350	/** Set if Last Branch Record (LBR) is enabled. */
351	bool fLbr;
352	/** The ASID for this VM (only valid if fCreatedAsid is true). */
353	hv_vm_space_t uVmAsid;
354	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
355	uint64_t cMachTimePerNs;
356	/** Pause-loop exiting (PLE) gap in ticks. */
357	uint32_t cPleGapTicks;
358	/** Pause-loop exiting (PLE) window in ticks. */
359	uint32_t cPleWindowTicks;
360
361	/** The host LBR TOS (top-of-stack) MSR id. */
362	uint32_t idLbrTosMsr;
363	/** The host LBR select MSR id. */
364	uint32_t idLbrSelectMsr;
365	/** The host last event record from IP MSR id. */
366	uint32_t idLerFromIpMsr;
367	/** The host last event record to IP MSR id. */
368	uint32_t idLerToIpMsr;
369
370	/** The first valid host LBR branch-from-IP stack range. */
371	uint32_t idLbrFromIpMsrFirst;
372	/** The last valid host LBR branch-from-IP stack range. */
373	uint32_t idLbrFromIpMsrLast;
374
375	/** The first valid host LBR branch-to-IP stack range. */
376	uint32_t idLbrToIpMsrFirst;
377	/** The last valid host LBR branch-to-IP stack range. */
378	uint32_t idLbrToIpMsrLast;
379
380	/** The first valid host LBR info stack range. */
381	uint32_t idLbrInfoMsrFirst;
382	/** The last valid host LBR info stack range. */
383	uint32_t idLbrInfoMsrLast;
384	# endif /* VBOX_VMM_TARGET_X86 */
385
386	STAMCOUNTER StatMapPage;
387	STAMCOUNTER StatUnmapPage;
388	STAMCOUNTER StatMapPageFailed;
389	STAMCOUNTER StatUnmapPageFailed;
390	#endif /* RT_OS_DARWIN */
391	} NEM;
392	/** Pointer to NEM VM instance data. */
393	typedef NEM *PNEM;
394
395	/** NEM::u32Magic value. */
396	#define NEM_MAGIC UINT32_C(0x004d454e)
397	/** NEM::u32Magic value after termination. */
398	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
399
400
401	/**
402	* NEM VMCPU Instance data.
403	*/
404	typedef struct NEMCPU
405	{
406	/** NEMCPU_MAGIC. */
407	uint32_t u32Magic;
408	/** Whether \#UD needs to be intercepted and presented to GIM. */
409	bool fGIMTrapXcptUD : 1;
410	/** Whether \#GP needs to be intercept for mesa driver workaround. */
411	bool fTrapXcptGpForLovelyMesaDrv: 1;
412	/** Whether we should use the debug loop because of single stepping or special
413	* debug breakpoints / events are armed. */
414	bool fUseDebugLoop : 1;
415	/** Whether we're executing a single instruction. */
416	bool fSingleInstruction : 1;
417	/** Set if we using the debug loop and wish to intercept RDTSC. */
418	bool fDebugWantRdTscExit : 1;
419	/** Whether we are currently executing in the debug loop.
420	* Mainly for assertions. */
421	bool fUsingDebugLoop : 1;
422	/** Set if we need to clear the trap flag because of single stepping. */
423	bool fClearTrapFlag : 1;
424	/** Whether we're using the hyper DR7 or guest DR7. */
425	bool fUsingHyperDR7 : 1;
426	/** Whether \#DE needs to be intercepted for GIM. */
427	bool fGCMTrapXcptDE : 1;
428	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
429	/** Set if indirect branch prediction barrier on VM exit. */
430	bool fIbpbOnVmExit : 1;
431	/** Set if indirect branch prediction barrier on VM entry. */
432	bool fIbpbOnVmEntry : 1;
433	/** Set if level 1 data cache should be flushed on VM entry. */
434	bool fL1dFlushOnVmEntry : 1;
435	/** Set if level 1 data cache should be flushed on EMT scheduling. */
436	bool fL1dFlushOnSched : 1;
437	/** Set if MDS related buffers should be cleared on VM entry. */
438	bool fMdsClearOnVmEntry : 1;
439	/** Set if MDS related buffers should be cleared on EMT scheduling. */
440	bool fMdsClearOnSched : 1;
441	#endif
442
443	#if defined(RT_OS_LINUX)
444	uint8_t abPadding[3];
445	/** The KVM VCpu file descriptor. */
446	int32_t fdVCpu;
447	/** Pointer to the KVM_RUN data exchange region. */
448	R3PTRTYPE(struct kvm_run *) pRun;
449	# ifdef VBOX_VMM_TARGET_ARMV8
450	/** The IRQ device levels from device_irq_level. */
451	uint64_t fIrqDeviceLvls;
452	/** Status of the IRQ line when last seen. */
453	bool fIrqLastSeen;
454	/** Status of the FIQ line when last seen. */
455	bool fFiqLastSeen;
456	# elif defined(VBOX_VMM_TARGET_X86)
457	/** The MSR_IA32_APICBASE value known to KVM. */
458	uint64_t uKvmApicBase;
459	# endif
460
461	/** @name Statistics
462	* @{ */
463	STAMCOUNTER StatExitTotal;
464	STAMCOUNTER StatExitIo;
465	STAMCOUNTER StatExitMmio;
466	STAMCOUNTER StatExitSetTpr;
467	STAMCOUNTER StatExitTprAccess;
468	STAMCOUNTER StatExitRdMsr;
469	STAMCOUNTER StatExitWrMsr;
470	STAMCOUNTER StatExitIrqWindowOpen;
471	STAMCOUNTER StatExitHalt;
472	STAMCOUNTER StatExitIntr;
473	STAMCOUNTER StatExitHypercall;
474	STAMCOUNTER StatExitDebug;
475	STAMCOUNTER StatExitBusLock;
476	STAMCOUNTER StatExitInternalErrorEmulation;
477	STAMCOUNTER StatExitInternalErrorFatal;
478	# if 0
479	STAMCOUNTER StatExitCpuId;
480	STAMCOUNTER StatExitUnrecoverable;
481	STAMCOUNTER StatGetMsgTimeout;
482	STAMCOUNTER StatStopCpuSuccess;
483	STAMCOUNTER StatStopCpuPending;
484	STAMCOUNTER StatStopCpuPendingAlerts;
485	STAMCOUNTER StatStopCpuPendingOdd;
486	STAMCOUNTER StatCancelChangedState;
487	STAMCOUNTER StatCancelAlertedThread;
488	# endif
489	STAMCOUNTER StatBreakOnCancel;
490	STAMCOUNTER StatBreakOnFFPre;
491	STAMCOUNTER StatBreakOnFFPost;
492	STAMCOUNTER StatBreakOnStatus;
493	STAMCOUNTER StatFlushExitOnReturn;
494	STAMCOUNTER StatFlushExitOnReturn1Loop;
495	STAMCOUNTER StatFlushExitOnReturn2Loops;
496	STAMCOUNTER StatFlushExitOnReturn3Loops;
497	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
498	STAMCOUNTER StatImportOnDemand;
499	STAMCOUNTER StatImportOnReturn;
500	STAMCOUNTER StatImportOnReturnSkipped;
501	STAMCOUNTER StatImportPendingInterrupt;
502	STAMCOUNTER StatExportPendingInterrupt;
503	STAMCOUNTER StatQueryCpuTick;
504	/** @} */
505
506
507	#elif defined(RT_OS_WINDOWS)
508	# ifdef VBOX_VMM_TARGET_X86
509	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
510	uint8_t fCurrentInterruptWindows;
511	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
512	uint8_t fDesiredInterruptWindows;
513	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
514	bool fLastInterruptShadow : 1;
515	uint32_t uPadding;
516	/** The VID_MSHAGN_F_XXX flags.
517	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
518	uint32_t fHandleAndGetFlags;
519	/** What VidMessageSlotMap returns and is used for passing exit info. */
520	RTR3PTR pvMsgSlotMapping;
521	/** The windows thread handle. */
522	RTR3PTR hNativeThreadHandle;
523	# endif
524
525	/** @name Statistics
526	* @{ */
527	STAMCOUNTER StatExitPortIo;
528	STAMCOUNTER StatExitMemUnmapped;
529	STAMCOUNTER StatExitMemIntercept;
530	STAMCOUNTER StatExitHalt;
531	STAMCOUNTER StatExitInterruptWindow;
532	STAMCOUNTER StatExitCpuId;
533	STAMCOUNTER StatExitMsr;
534	STAMCOUNTER StatExitException;
535	STAMCOUNTER StatExitExceptionBp;
536	STAMCOUNTER StatExitExceptionDb;
537	STAMCOUNTER StatExitExceptionGp;
538	STAMCOUNTER StatExitExceptionGpMesa;
539	STAMCOUNTER StatExitExceptionUd;
540	STAMCOUNTER StatExitExceptionUdHandled;
541	STAMCOUNTER StatExitUnrecoverable;
542	STAMCOUNTER StatGetMsgTimeout;
543	STAMCOUNTER StatStopCpuSuccess;
544	STAMCOUNTER StatStopCpuPending;
545	STAMCOUNTER StatStopCpuPendingAlerts;
546	STAMCOUNTER StatStopCpuPendingOdd;
547	STAMCOUNTER StatCancelChangedState;
548	STAMCOUNTER StatCancelAlertedThread;
549	STAMCOUNTER StatBreakOnCancel;
550	STAMCOUNTER StatBreakOnFFPre;
551	STAMCOUNTER StatBreakOnFFPost;
552	STAMCOUNTER StatBreakOnStatus;
553	STAMCOUNTER StatImportOnDemand;
554	STAMCOUNTER StatImportOnReturn;
555	STAMCOUNTER StatImportOnReturnSkipped;
556	STAMCOUNTER StatQueryCpuTick;
557	/** @} */
558
559	#elif defined(RT_OS_DARWIN)
560	# ifdef VBOX_VMM_TARGET_ARMV8
561	/** The vCPU handle associated with the EMT executing this vCPU. */
562	hv_vcpu_t hVCpu;
563	/** Pointer to the exit information structure. */
564	hv_vcpu_exit_t *pHvExit;
565	/** Flag whether an event is pending. */
566	bool fEventPending;
567	/** Flag whether the vTimer got activated and is masked. */
568	bool fVTimerActivated;
569	/** Flag whether to update the vTimer offset. */
570	bool fVTimerOffUpdate;
571	/** Flag whether the ID registers were synced to the guest context
572	* (for first guest exec call on the EMT after loading the saved state). */
573	bool fIdRegsSynced;
574
575	# elif defined(VBOX_VMM_TARGET_X86)
576	/** The vCPU handle associated with the EMT executing this vCPU. */
577	hv_vcpuid_t hVCpuId;
578
579	/** @name State shared with the VT-x code.
580	* @{ */
581	/** An additional error code used for some gurus. */
582	uint32_t u32HMError;
583	/** The last exit-to-ring-3 reason. */
584	int32_t rcLastExitToR3;
585	/** CPU-context changed flags (see HM_CHANGED_xxx). */
586	uint64_t fCtxChanged;
587
588	/** The guest VMCS information. */
589	VMXVMCSINFO VmcsInfo;
590
591	/** VT-x data. */
592	struct HMCPUVMX
593	{
594	/** @name Guest information.
595	* @{ */
596	/** Guest VMCS information shared with ring-3. */
597	VMXVMCSINFOSHARED VmcsInfo;
598	/** Nested-guest VMCS information shared with ring-3. */
599	VMXVMCSINFOSHARED VmcsInfoNstGst;
600	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
601	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
602	bool fSwitchedToNstGstVmcsCopyForRing3;
603	/** Whether the static guest VMCS controls has been merged with the
604	* nested-guest VMCS controls. */
605	bool fMergedNstGstCtls;
606	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
607	bool fCopiedNstGstToShadowVmcs;
608	/** Whether flushing the TLB is required due to switching to/from the
609	* nested-guest. */
610	bool fSwitchedNstGstFlushTlb;
611	/** Alignment. */
612	bool afAlignment0[4];
613	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
614	uint64_t u64GstMsrApicBase;
615	/** @} */
616
617	/** @name Error reporting and diagnostics.
618	* @{ */
619	/** VT-x error-reporting (mainly for ring-3 propagation). */
620	struct
621	{
622	RTCPUID idCurrentCpu;
623	RTCPUID idEnteredCpu;
624	RTHCPHYS HCPhysCurrentVmcs;
625	uint32_t u32VmcsRev;
626	uint32_t u32InstrError;
627	uint32_t u32ExitReason;
628	uint32_t u32GuestIntrState;
629	} LastError;
630	/** @} */
631	} vmx;
632
633	/** Event injection state. */
634	HMEVENT Event;
635
636	/** Current shadow paging mode for updating CR4.
637	* @todo move later (@bugref{9217}). */
638	PGMMODE enmShadowMode;
639	uint32_t u32TemporaryPadding;
640
641	/** The PAE PDPEs used with Nested Paging (only valid when
642	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
643	X86PDPE aPdpes[4];
644	/** Pointer to the VMX statistics. */
645	PVMXSTATISTICS pVmxStats;
646	# endif /* VBOX_VMM_TARGET_X86 */
647
648	/** @name Statistics
649	* @{ */
650	STAMCOUNTER StatExitAll;
651	STAMCOUNTER StatBreakOnCancel;
652	STAMCOUNTER StatBreakOnFFPre;
653	STAMCOUNTER StatBreakOnFFPost;
654	STAMCOUNTER StatBreakOnStatus;
655	STAMCOUNTER StatImportOnDemand;
656	STAMCOUNTER StatImportOnReturn;
657	STAMCOUNTER StatImportOnReturnSkipped;
658	STAMCOUNTER StatQueryCpuTick;
659	# ifdef VBOX_WITH_STATISTICS
660	STAMPROFILEADV StatProfGstStateImport;
661	STAMPROFILEADV StatProfGstStateExport;
662	# endif
663	/** @} */
664
665	/** @} */
666	#endif /* RT_OS_DARWIN */
667	} NEMCPU;
668	/** Pointer to NEM VMCPU instance data. */
669	typedef NEMCPU *PNEMCPU;
670
671	/** NEMCPU::u32Magic value. */
672	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
673	/** NEMCPU::u32Magic value after termination. */
674	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
675
676
677	#ifdef IN_RING0
678	# ifdef RT_OS_WINDOWS
679	/**
680	* Windows: Hypercall input/ouput page info.
681	*/
682	typedef struct NEMR0HYPERCALLDATA
683	{
684	/** Host physical address of the hypercall input/output page. */
685	RTHCPHYS HCPhysPage;
686	/** Pointer to the hypercall input/output page. */
687	uint8_t *pbPage;
688	/** Handle to the memory object of the hypercall input/output page. */
689	RTR0MEMOBJ hMemObj;
690	} NEMR0HYPERCALLDATA;
691	/** Pointer to a Windows hypercall input/output page info. */
692	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
693	# endif /* RT_OS_WINDOWS */
694
695	/**
696	* NEM GVMCPU instance data.
697	*/
698	typedef struct NEMR0PERVCPU
699	{
700	uint32_t uDummy;
701	} NEMR0PERVCPU;
702
703	/**
704	* NEM GVM instance data.
705	*/
706	typedef struct NEMR0PERVM
707	{
708	uint32_t uDummy;
709	} NEMR0PERVM;
710
711	#endif /* IN_RING*/
712
713
714	#ifdef IN_RING3
715
716	int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
717
718	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
719	int nemR3NativeInitAfterCPUM(PVM pVM);
720	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
721	int nemR3NativeTerm(PVM pVM);
722	void nemR3NativeReset(PVM pVM);
723	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
724	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
725	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
726	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
727
728	/** GIC API is currently implemented in NEM rather than in GIC. */
729	VMM_INT_DECL(int) NEMR3GicSetSpi(PVMCC pVM, uint32_t uIntId, bool fAsserted);
730	VMM_INT_DECL(int) NEMR3GicSetPpi(PVMCPUCC pVCpu, uint32_t uIntId, bool fAsserted);
731	VMM_INT_DECL(VBOXSTRICTRC) NEMR3GicReadSysReg(PVMCPUCC pVCpu, uint32_t u32Reg, uint64_t *pu64Value);
732	VMM_INT_DECL(VBOXSTRICTRC) NEMR3GicWriteSysReg(PVMCPUCC pVCpu, uint32_t u32Reg, uint64_t u64Value);
733
734	/**
735	* Forced flag notification call from VMEmt.h.
736	*
737	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
738	*
739	* @param pVM The cross context VM structure.
740	* @param pVCpu The cross context virtual CPU structure of the CPU
741	* to be notified.
742	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
743	*/
744	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
745
746	/**
747	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
748	* on whether to switch to the debug loop.
749	*
750	* @returns Final flag whether to switch to the debug loop.
751	* @param pVM The VM cross context VM structure.
752	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
753	* @thread EMT(0)
754	*/
755	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
756
757
758	/**
759	* Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
760	* on whether to switch to the debug loop.
761	*
762	* @returns Final flag whether to switch to the debug loop.
763	* @param pVM The VM cross context VM structure.
764	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
765	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
766	*/
767	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
768
769	#endif /* IN_RING3 */
770
771	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
772	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
773	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
774	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
775	PGMPAGETYPE enmType, uint8_t *pu2State);
776
777
778	#ifdef RT_OS_WINDOWS
779	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
780	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
781	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
782	# define NEM_MAX_UNMAP_PAGES 4095
783
784	#endif
785	/** @} */
786
787	RT_C_DECLS_END
788
789	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
790

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 107922

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