NEMInternal.h@ 106952

Last change on this file since 106952 was 106952, checked in by vboxsync, 2 months ago
VMM/ARM: Implement configuring the GICv3 emulated by Hyper-V. This API is available starting with Windows build 27744 but there is no public SDK for this yet so we have to resort to defining these structures ourselves, bugref:10392
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1	/* $Id: NEMInternal.h 106952 2024-11-12 09:51:44Z 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	# 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(VBOX_VMM_TARGET_ARMV8)
224	/** The PPI interrupt number of the vTimer. */
225	uint32_t u32GicPpiVTimer;
226	#endif
227
228	#if defined(RT_OS_LINUX)
229	/** The '/dev/kvm' file descriptor. */
230	int32_t fdKvm;
231	/** The KVM_CREATE_VM file descriptor. */
232	int32_t fdVm;
233
234	/** KVM_GET_VCPU_MMAP_SIZE. */
235	uint32_t cbVCpuMmap;
236	/** KVM_CAP_NR_MEMSLOTS. */
237	uint32_t cMaxMemSlots;
238	# ifdef RT_ARCH_ARM64
239	/** KVM_CAP_ARM_VM_IPA_SIZE. */
240	uint32_t cIpaBits;
241	# else
242	/** KVM_CAP_X86_ROBUST_SINGLESTEP. */
243	bool fRobustSingleStep;
244	# endif
245
246	/** Hint where there might be a free slot. */
247	uint16_t idPrevSlot;
248	/** Memory slot ID allocation bitmap. */
249	uint64_t bmSlotIds[_32K / 8 / sizeof(uint64_t)];
250
251	#elif defined(RT_OS_WINDOWS)
252	/** Set if we've created the EMTs. */
253	bool fCreatedEmts : 1;
254	# if defined(VBOX_VMM_TARGET_ARMV8)
255	bool fHypercallExit : 1;
256	bool fGpaAccessFaultExit : 1;
257	/** Cache line flush size as a power of two. */
258	uint8_t cPhysicalAddressWidth;
259	# else
260	/** WHvRunVpExitReasonX64Cpuid is supported. */
261	bool fExtendedMsrExit : 1;
262	/** WHvRunVpExitReasonX64MsrAccess is supported. */
263	bool fExtendedCpuIdExit : 1;
264	/** WHvRunVpExitReasonException is supported. */
265	bool fExtendedXcptExit : 1;
266	# ifdef NEM_WIN_WITH_A20
267	/** Set if we've started more than one CPU and cannot mess with A20. */
268	bool fA20Fixed : 1;
269	/** Set if A20 is enabled. */
270	bool fA20Enabled : 1;
271	# endif
272	# endif
273	/** The reported CPU vendor. */
274	CPUMCPUVENDOR enmCpuVendor;
275	/** Cache line flush size as a power of two. */
276	uint8_t cCacheLineFlushShift;
277	/** The result of WHvCapabilityCodeProcessorFeatures. */
278	union
279	{
280	/** 64-bit view. */
281	uint64_t u64;
282	# ifdef _WINHVAPIDEFS_H_
283	/** Interpreed features. */
284	WHV_PROCESSOR_FEATURES u;
285	# endif
286	} uCpuFeatures;
287
288	/** The partition handle. */
289	# ifdef _WINHVAPIDEFS_H_
290	WHV_PARTITION_HANDLE
291	# else
292	RTHCUINTPTR
293	# endif
294	hPartition;
295	/** The device handle for the partition, for use with Vid APIs or direct I/O
296	* controls. */
297	RTR3PTR hPartitionDevice;
298
299	/** Number of currently mapped pages. */
300	uint32_t volatile cMappedPages;
301	uint32_t u32Padding;
302	STAMCOUNTER StatMapPage;
303	STAMCOUNTER StatUnmapPage;
304	STAMCOUNTER StatMapPageFailed;
305	STAMCOUNTER StatUnmapPageFailed;
306	STAMPROFILE StatProfMapGpaRange;
307	STAMPROFILE StatProfUnmapGpaRange;
308	STAMPROFILE StatProfMapGpaRangePage;
309	STAMPROFILE StatProfUnmapGpaRangePage;
310
311	/** Statistics updated by NEMR0UpdateStatistics. */
312	struct
313	{
314	uint64_t cPagesAvailable;
315	uint64_t cPagesInUse;
316	} R0Stats;
317
318	# if defined(VBOX_VMM_TARGET_ARMV8)
319	RTGCPHYS GCPhysMmioBaseReDist;
320	# endif
321
322	#elif defined(RT_OS_DARWIN)
323	/** Set if we've created the EMTs. */
324	bool fCreatedEmts : 1;
325	/** Set if hv_vm_create() was called successfully. */
326	bool fCreatedVm : 1;
327	/** Set if EL2 is enabled. */
328	bool fEl2Enabled : 1;
329	# if defined(VBOX_VMM_TARGET_ARMV8)
330	/** @name vTimer related state.
331	* @{ */
332	/** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
333	uint64_t u64CntFrqHz;
334	/** The vTimer offset programmed. */
335	uint64_t u64VTimerOff;
336	/** Dirty tracking slots. */
337	NEMHVMMIO2REGION aMmio2DirtyTracking[8];
338	/** The vCPU config. */
339	hv_vcpu_config_t hVCpuCfg;
340	/** @} */
341	# else
342	/** Set if hv_vm_space_create() was called successfully. */
343	bool fCreatedAsid : 1;
344	/** Set if Last Branch Record (LBR) is enabled. */
345	bool fLbr;
346	/** The ASID for this VM (only valid if fCreatedAsid is true). */
347	hv_vm_space_t uVmAsid;
348	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
349	uint64_t cMachTimePerNs;
350	/** Pause-loop exiting (PLE) gap in ticks. */
351	uint32_t cPleGapTicks;
352	/** Pause-loop exiting (PLE) window in ticks. */
353	uint32_t cPleWindowTicks;
354
355	/** The host LBR TOS (top-of-stack) MSR id. */
356	uint32_t idLbrTosMsr;
357	/** The host LBR select MSR id. */
358	uint32_t idLbrSelectMsr;
359	/** The host last event record from IP MSR id. */
360	uint32_t idLerFromIpMsr;
361	/** The host last event record to IP MSR id. */
362	uint32_t idLerToIpMsr;
363
364	/** The first valid host LBR branch-from-IP stack range. */
365	uint32_t idLbrFromIpMsrFirst;
366	/** The last valid host LBR branch-from-IP stack range. */
367	uint32_t idLbrFromIpMsrLast;
368
369	/** The first valid host LBR branch-to-IP stack range. */
370	uint32_t idLbrToIpMsrFirst;
371	/** The last valid host LBR branch-to-IP stack range. */
372	uint32_t idLbrToIpMsrLast;
373
374	/** The first valid host LBR info stack range. */
375	uint32_t idLbrInfoMsrFirst;
376	/** The last valid host LBR info stack range. */
377	uint32_t idLbrInfoMsrLast;
378	# endif
379
380	STAMCOUNTER StatMapPage;
381	STAMCOUNTER StatUnmapPage;
382	STAMCOUNTER StatMapPageFailed;
383	STAMCOUNTER StatUnmapPageFailed;
384	#endif /* RT_OS_WINDOWS */
385	} NEM;
386	/** Pointer to NEM VM instance data. */
387	typedef NEM *PNEM;
388
389	/** NEM::u32Magic value. */
390	#define NEM_MAGIC UINT32_C(0x004d454e)
391	/** NEM::u32Magic value after termination. */
392	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
393
394
395	/**
396	* NEM VMCPU Instance data.
397	*/
398	typedef struct NEMCPU
399	{
400	/** NEMCPU_MAGIC. */
401	uint32_t u32Magic;
402	/** Whether \#UD needs to be intercepted and presented to GIM. */
403	bool fGIMTrapXcptUD : 1;
404	/** Whether \#GP needs to be intercept for mesa driver workaround. */
405	bool fTrapXcptGpForLovelyMesaDrv: 1;
406	/** Whether we should use the debug loop because of single stepping or special
407	* debug breakpoints / events are armed. */
408	bool fUseDebugLoop : 1;
409	/** Whether we're executing a single instruction. */
410	bool fSingleInstruction : 1;
411	/** Set if we using the debug loop and wish to intercept RDTSC. */
412	bool fDebugWantRdTscExit : 1;
413	/** Whether we are currently executing in the debug loop.
414	* Mainly for assertions. */
415	bool fUsingDebugLoop : 1;
416	/** Set if we need to clear the trap flag because of single stepping. */
417	bool fClearTrapFlag : 1;
418	/** Whether we're using the hyper DR7 or guest DR7. */
419	bool fUsingHyperDR7 : 1;
420	/** Whether \#DE needs to be intercepted for GIM. */
421	bool fGCMTrapXcptDE : 1;
422
423	#if defined(RT_OS_LINUX)
424	uint8_t abPadding[3];
425	/** The KVM VCpu file descriptor. */
426	int32_t fdVCpu;
427	/** Pointer to the KVM_RUN data exchange region. */
428	R3PTRTYPE(struct kvm_run *) pRun;
429	# if defined(VBOX_VMM_TARGET_ARMV8)
430	/** The IRQ device levels from device_irq_level. */
431	uint64_t fIrqDeviceLvls;
432	/** Status of the IRQ line when last seen. */
433	bool fIrqLastSeen;
434	/** Status of the FIQ line when last seen. */
435	bool fFiqLastSeen;
436	# else
437	/** The MSR_IA32_APICBASE value known to KVM. */
438	uint64_t uKvmApicBase;
439	#endif
440
441	/** @name Statistics
442	* @{ */
443	STAMCOUNTER StatExitTotal;
444	STAMCOUNTER StatExitIo;
445	STAMCOUNTER StatExitMmio;
446	STAMCOUNTER StatExitSetTpr;
447	STAMCOUNTER StatExitTprAccess;
448	STAMCOUNTER StatExitRdMsr;
449	STAMCOUNTER StatExitWrMsr;
450	STAMCOUNTER StatExitIrqWindowOpen;
451	STAMCOUNTER StatExitHalt;
452	STAMCOUNTER StatExitIntr;
453	STAMCOUNTER StatExitHypercall;
454	STAMCOUNTER StatExitDebug;
455	STAMCOUNTER StatExitBusLock;
456	STAMCOUNTER StatExitInternalErrorEmulation;
457	STAMCOUNTER StatExitInternalErrorFatal;
458	# if 0
459	STAMCOUNTER StatExitCpuId;
460	STAMCOUNTER StatExitUnrecoverable;
461	STAMCOUNTER StatGetMsgTimeout;
462	STAMCOUNTER StatStopCpuSuccess;
463	STAMCOUNTER StatStopCpuPending;
464	STAMCOUNTER StatStopCpuPendingAlerts;
465	STAMCOUNTER StatStopCpuPendingOdd;
466	STAMCOUNTER StatCancelChangedState;
467	STAMCOUNTER StatCancelAlertedThread;
468	# endif
469	STAMCOUNTER StatBreakOnCancel;
470	STAMCOUNTER StatBreakOnFFPre;
471	STAMCOUNTER StatBreakOnFFPost;
472	STAMCOUNTER StatBreakOnStatus;
473	STAMCOUNTER StatFlushExitOnReturn;
474	STAMCOUNTER StatFlushExitOnReturn1Loop;
475	STAMCOUNTER StatFlushExitOnReturn2Loops;
476	STAMCOUNTER StatFlushExitOnReturn3Loops;
477	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
478	STAMCOUNTER StatImportOnDemand;
479	STAMCOUNTER StatImportOnReturn;
480	STAMCOUNTER StatImportOnReturnSkipped;
481	STAMCOUNTER StatImportPendingInterrupt;
482	STAMCOUNTER StatExportPendingInterrupt;
483	STAMCOUNTER StatQueryCpuTick;
484	/** @} */
485
486
487	#elif defined(RT_OS_WINDOWS)
488	# ifdef VBOX_VMM_TARGET_ARMV8
489	/** Flag whether the ID registers were synced to the guest context
490	* (for first guest exec call on the EMT after loading the saved state). */
491	bool fIdRegsSynced;
492	# else
493	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
494	uint8_t fCurrentInterruptWindows;
495	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
496	uint8_t fDesiredInterruptWindows;
497	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
498	bool fLastInterruptShadow : 1;
499	uint32_t uPadding;
500	/** The VID_MSHAGN_F_XXX flags.
501	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
502	uint32_t fHandleAndGetFlags;
503	/** What VidMessageSlotMap returns and is used for passing exit info. */
504	RTR3PTR pvMsgSlotMapping;
505	/** The windows thread handle. */
506	RTR3PTR hNativeThreadHandle;
507	# endif
508
509	/** @name Statistics
510	* @{ */
511	STAMCOUNTER StatExitPortIo;
512	STAMCOUNTER StatExitMemUnmapped;
513	STAMCOUNTER StatExitMemIntercept;
514	STAMCOUNTER StatExitHalt;
515	STAMCOUNTER StatExitInterruptWindow;
516	STAMCOUNTER StatExitCpuId;
517	STAMCOUNTER StatExitMsr;
518	STAMCOUNTER StatExitException;
519	STAMCOUNTER StatExitExceptionBp;
520	STAMCOUNTER StatExitExceptionDb;
521	STAMCOUNTER StatExitExceptionGp;
522	STAMCOUNTER StatExitExceptionGpMesa;
523	STAMCOUNTER StatExitExceptionUd;
524	STAMCOUNTER StatExitExceptionUdHandled;
525	STAMCOUNTER StatExitUnrecoverable;
526	STAMCOUNTER StatGetMsgTimeout;
527	STAMCOUNTER StatStopCpuSuccess;
528	STAMCOUNTER StatStopCpuPending;
529	STAMCOUNTER StatStopCpuPendingAlerts;
530	STAMCOUNTER StatStopCpuPendingOdd;
531	STAMCOUNTER StatCancelChangedState;
532	STAMCOUNTER StatCancelAlertedThread;
533	STAMCOUNTER StatBreakOnCancel;
534	STAMCOUNTER StatBreakOnFFPre;
535	STAMCOUNTER StatBreakOnFFPost;
536	STAMCOUNTER StatBreakOnStatus;
537	STAMCOUNTER StatImportOnDemand;
538	STAMCOUNTER StatImportOnReturn;
539	STAMCOUNTER StatImportOnReturnSkipped;
540	STAMCOUNTER StatQueryCpuTick;
541	/** @} */
542
543	#elif defined(RT_OS_DARWIN)
544	# if defined(VBOX_VMM_TARGET_ARMV8)
545	/** The vCPU handle associated with the EMT executing this vCPU. */
546	hv_vcpu_t hVCpu;
547	/** Pointer to the exit information structure. */
548	hv_vcpu_exit_t *pHvExit;
549	/** Flag whether an event is pending. */
550	bool fEventPending;
551	/** Flag whether the vTimer got activated and is masked. */
552	bool fVTimerActivated;
553	/** Flag whether to update the vTimer offset. */
554	bool fVTimerOffUpdate;
555	/** Flag whether the ID registers were synced to the guest context
556	* (for first guest exec call on the EMT after loading the saved state). */
557	bool fIdRegsSynced;
558	# else
559	/** The vCPU handle associated with the EMT executing this vCPU. */
560	hv_vcpuid_t hVCpuId;
561
562	/** @name State shared with the VT-x code.
563	* @{ */
564	/** An additional error code used for some gurus. */
565	uint32_t u32HMError;
566	/** The last exit-to-ring-3 reason. */
567	int32_t rcLastExitToR3;
568	/** CPU-context changed flags (see HM_CHANGED_xxx). */
569	uint64_t fCtxChanged;
570
571	/** The guest VMCS information. */
572	VMXVMCSINFO VmcsInfo;
573
574	/** VT-x data. */
575	struct HMCPUVMX
576	{
577	/** @name Guest information.
578	* @{ */
579	/** Guest VMCS information shared with ring-3. */
580	VMXVMCSINFOSHARED VmcsInfo;
581	/** Nested-guest VMCS information shared with ring-3. */
582	VMXVMCSINFOSHARED VmcsInfoNstGst;
583	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
584	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
585	bool fSwitchedToNstGstVmcsCopyForRing3;
586	/** Whether the static guest VMCS controls has been merged with the
587	* nested-guest VMCS controls. */
588	bool fMergedNstGstCtls;
589	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
590	bool fCopiedNstGstToShadowVmcs;
591	/** Whether flushing the TLB is required due to switching to/from the
592	* nested-guest. */
593	bool fSwitchedNstGstFlushTlb;
594	/** Alignment. */
595	bool afAlignment0[4];
596	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
597	uint64_t u64GstMsrApicBase;
598	/** @} */
599
600	/** @name Error reporting and diagnostics.
601	* @{ */
602	/** VT-x error-reporting (mainly for ring-3 propagation). */
603	struct
604	{
605	RTCPUID idCurrentCpu;
606	RTCPUID idEnteredCpu;
607	RTHCPHYS HCPhysCurrentVmcs;
608	uint32_t u32VmcsRev;
609	uint32_t u32InstrError;
610	uint32_t u32ExitReason;
611	uint32_t u32GuestIntrState;
612	} LastError;
613	/** @} */
614	} vmx;
615
616	/** Event injection state. */
617	HMEVENT Event;
618
619	/** Current shadow paging mode for updating CR4.
620	* @todo move later (@bugref{9217}). */
621	PGMMODE enmShadowMode;
622	uint32_t u32TemporaryPadding;
623
624	/** The PAE PDPEs used with Nested Paging (only valid when
625	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
626	X86PDPE aPdpes[4];
627	/** Pointer to the VMX statistics. */
628	PVMXSTATISTICS pVmxStats;
629	# endif
630
631	/** @name Statistics
632	* @{ */
633	STAMCOUNTER StatExitAll;
634	STAMCOUNTER StatBreakOnCancel;
635	STAMCOUNTER StatBreakOnFFPre;
636	STAMCOUNTER StatBreakOnFFPost;
637	STAMCOUNTER StatBreakOnStatus;
638	STAMCOUNTER StatImportOnDemand;
639	STAMCOUNTER StatImportOnReturn;
640	STAMCOUNTER StatImportOnReturnSkipped;
641	STAMCOUNTER StatQueryCpuTick;
642	#ifdef VBOX_WITH_STATISTICS
643	STAMPROFILEADV StatProfGstStateImport;
644	STAMPROFILEADV StatProfGstStateExport;
645	#endif
646	/** @} */
647
648	/** @} */
649	#endif /* RT_OS_DARWIN */
650	} NEMCPU;
651	/** Pointer to NEM VMCPU instance data. */
652	typedef NEMCPU *PNEMCPU;
653
654	/** NEMCPU::u32Magic value. */
655	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
656	/** NEMCPU::u32Magic value after termination. */
657	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
658
659
660	#ifdef IN_RING0
661	# ifdef RT_OS_WINDOWS
662	/**
663	* Windows: Hypercall input/ouput page info.
664	*/
665	typedef struct NEMR0HYPERCALLDATA
666	{
667	/** Host physical address of the hypercall input/output page. */
668	RTHCPHYS HCPhysPage;
669	/** Pointer to the hypercall input/output page. */
670	uint8_t *pbPage;
671	/** Handle to the memory object of the hypercall input/output page. */
672	RTR0MEMOBJ hMemObj;
673	} NEMR0HYPERCALLDATA;
674	/** Pointer to a Windows hypercall input/output page info. */
675	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
676	# endif /* RT_OS_WINDOWS */
677
678	/**
679	* NEM GVMCPU instance data.
680	*/
681	typedef struct NEMR0PERVCPU
682	{
683	uint32_t uDummy;
684	} NEMR0PERVCPU;
685
686	/**
687	* NEM GVM instance data.
688	*/
689	typedef struct NEMR0PERVM
690	{
691	uint32_t uDummy;
692	} NEMR0PERVM;
693
694	#endif /* IN_RING*/
695
696
697	#ifdef IN_RING3
698
699	int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
700
701	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
702	int nemR3NativeInitAfterCPUM(PVM pVM);
703	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
704	int nemR3NativeTerm(PVM pVM);
705	void nemR3NativeReset(PVM pVM);
706	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
707	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
708	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
709	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
710
711	/**
712	* Forced flag notification call from VMEmt.h.
713	*
714	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
715	*
716	* @param pVM The cross context VM structure.
717	* @param pVCpu The cross context virtual CPU structure of the CPU
718	* to be notified.
719	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
720	*/
721	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
722
723	/**
724	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
725	* on whether to switch to the debug loop.
726	*
727	* @returns Final flag whether to switch to the debug loop.
728	* @param pVM The VM cross context VM structure.
729	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
730	* @thread EMT(0)
731	*/
732	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
733
734
735	/**
736	* Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
737	* on whether to switch to the debug loop.
738	*
739	* @returns Final flag whether to switch to the debug loop.
740	* @param pVM The VM cross context VM structure.
741	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
742	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
743	*/
744	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
745
746	#endif /* IN_RING3 */
747
748	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
749	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
750	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
751	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
752	PGMPAGETYPE enmType, uint8_t *pu2State);
753
754
755	#ifdef RT_OS_WINDOWS
756	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
757	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
758	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
759	# define NEM_MAX_UNMAP_PAGES 4095
760
761	#endif
762	/** @} */
763
764	RT_C_DECLS_END
765
766	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
767

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 106952

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