NEMInternal.h@ 105072

Last change on this file since 105072 was 104672, checked in by vboxsync, 7 months ago
VMM/NEM: Pretty much work in progress Hyper-V on win.arm64 experiment, bugref:10392
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1	/* $Id: NEMInternal.h 104672 2024-05-16 10:50:35Z 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.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	#elif defined(RT_OS_DARWIN)
319	/** Set if we've created the EMTs. */
320	bool fCreatedEmts : 1;
321	/** Set if hv_vm_create() was called successfully. */
322	bool fCreatedVm : 1;
323	# if defined(VBOX_VMM_TARGET_ARMV8)
324	/** @name vTimer related state.
325	* @{ */
326	/** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
327	uint64_t u64CntFrqHz;
328	/** The vTimer offset programmed. */
329	uint64_t u64VTimerOff;
330	/** Dirty tracking slots. */
331	NEMHVMMIO2REGION aMmio2DirtyTracking[8];
332	/** The vCPU config. */
333	hv_vcpu_config_t hVCpuCfg;
334	/** @} */
335	# else
336	/** Set if hv_vm_space_create() was called successfully. */
337	bool fCreatedAsid : 1;
338	/** Set if Last Branch Record (LBR) is enabled. */
339	bool fLbr;
340	/** The ASID for this VM (only valid if fCreatedAsid is true). */
341	hv_vm_space_t uVmAsid;
342	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
343	uint64_t cMachTimePerNs;
344	/** Pause-loop exiting (PLE) gap in ticks. */
345	uint32_t cPleGapTicks;
346	/** Pause-loop exiting (PLE) window in ticks. */
347	uint32_t cPleWindowTicks;
348
349	/** The host LBR TOS (top-of-stack) MSR id. */
350	uint32_t idLbrTosMsr;
351	/** The host LBR select MSR id. */
352	uint32_t idLbrSelectMsr;
353	/** The host last event record from IP MSR id. */
354	uint32_t idLerFromIpMsr;
355	/** The host last event record to IP MSR id. */
356	uint32_t idLerToIpMsr;
357
358	/** The first valid host LBR branch-from-IP stack range. */
359	uint32_t idLbrFromIpMsrFirst;
360	/** The last valid host LBR branch-from-IP stack range. */
361	uint32_t idLbrFromIpMsrLast;
362
363	/** The first valid host LBR branch-to-IP stack range. */
364	uint32_t idLbrToIpMsrFirst;
365	/** The last valid host LBR branch-to-IP stack range. */
366	uint32_t idLbrToIpMsrLast;
367
368	/** The first valid host LBR info stack range. */
369	uint32_t idLbrInfoMsrFirst;
370	/** The last valid host LBR info stack range. */
371	uint32_t idLbrInfoMsrLast;
372	# endif
373
374	STAMCOUNTER StatMapPage;
375	STAMCOUNTER StatUnmapPage;
376	STAMCOUNTER StatMapPageFailed;
377	STAMCOUNTER StatUnmapPageFailed;
378	#endif /* RT_OS_WINDOWS */
379	} NEM;
380	/** Pointer to NEM VM instance data. */
381	typedef NEM *PNEM;
382
383	/** NEM::u32Magic value. */
384	#define NEM_MAGIC UINT32_C(0x004d454e)
385	/** NEM::u32Magic value after termination. */
386	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
387
388
389	/**
390	* NEM VMCPU Instance data.
391	*/
392	typedef struct NEMCPU
393	{
394	/** NEMCPU_MAGIC. */
395	uint32_t u32Magic;
396	/** Whether \#UD needs to be intercepted and presented to GIM. */
397	bool fGIMTrapXcptUD : 1;
398	/** Whether \#GP needs to be intercept for mesa driver workaround. */
399	bool fTrapXcptGpForLovelyMesaDrv: 1;
400	/** Whether we should use the debug loop because of single stepping or special
401	* debug breakpoints / events are armed. */
402	bool fUseDebugLoop : 1;
403	/** Whether we're executing a single instruction. */
404	bool fSingleInstruction : 1;
405	/** Set if we using the debug loop and wish to intercept RDTSC. */
406	bool fDebugWantRdTscExit : 1;
407	/** Whether we are currently executing in the debug loop.
408	* Mainly for assertions. */
409	bool fUsingDebugLoop : 1;
410	/** Set if we need to clear the trap flag because of single stepping. */
411	bool fClearTrapFlag : 1;
412	/** Whether we're using the hyper DR7 or guest DR7. */
413	bool fUsingHyperDR7 : 1;
414	/** Whether \#DE needs to be intercepted for GIM. */
415	bool fGCMTrapXcptDE : 1;
416
417	#if defined(RT_OS_LINUX)
418	uint8_t abPadding[3];
419	/** The KVM VCpu file descriptor. */
420	int32_t fdVCpu;
421	/** Pointer to the KVM_RUN data exchange region. */
422	R3PTRTYPE(struct kvm_run *) pRun;
423	# if defined(VBOX_VMM_TARGET_ARMV8)
424	/** The IRQ device levels from device_irq_level. */
425	uint64_t fIrqDeviceLvls;
426	/** Status of the IRQ line when last seen. */
427	bool fIrqLastSeen;
428	/** Status of the FIQ line when last seen. */
429	bool fFiqLastSeen;
430	# else
431	/** The MSR_IA32_APICBASE value known to KVM. */
432	uint64_t uKvmApicBase;
433	#endif
434
435	/** @name Statistics
436	* @{ */
437	STAMCOUNTER StatExitTotal;
438	STAMCOUNTER StatExitIo;
439	STAMCOUNTER StatExitMmio;
440	STAMCOUNTER StatExitSetTpr;
441	STAMCOUNTER StatExitTprAccess;
442	STAMCOUNTER StatExitRdMsr;
443	STAMCOUNTER StatExitWrMsr;
444	STAMCOUNTER StatExitIrqWindowOpen;
445	STAMCOUNTER StatExitHalt;
446	STAMCOUNTER StatExitIntr;
447	STAMCOUNTER StatExitHypercall;
448	STAMCOUNTER StatExitDebug;
449	STAMCOUNTER StatExitBusLock;
450	STAMCOUNTER StatExitInternalErrorEmulation;
451	STAMCOUNTER StatExitInternalErrorFatal;
452	# if 0
453	STAMCOUNTER StatExitCpuId;
454	STAMCOUNTER StatExitUnrecoverable;
455	STAMCOUNTER StatGetMsgTimeout;
456	STAMCOUNTER StatStopCpuSuccess;
457	STAMCOUNTER StatStopCpuPending;
458	STAMCOUNTER StatStopCpuPendingAlerts;
459	STAMCOUNTER StatStopCpuPendingOdd;
460	STAMCOUNTER StatCancelChangedState;
461	STAMCOUNTER StatCancelAlertedThread;
462	# endif
463	STAMCOUNTER StatBreakOnCancel;
464	STAMCOUNTER StatBreakOnFFPre;
465	STAMCOUNTER StatBreakOnFFPost;
466	STAMCOUNTER StatBreakOnStatus;
467	STAMCOUNTER StatFlushExitOnReturn;
468	STAMCOUNTER StatFlushExitOnReturn1Loop;
469	STAMCOUNTER StatFlushExitOnReturn2Loops;
470	STAMCOUNTER StatFlushExitOnReturn3Loops;
471	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
472	STAMCOUNTER StatImportOnDemand;
473	STAMCOUNTER StatImportOnReturn;
474	STAMCOUNTER StatImportOnReturnSkipped;
475	STAMCOUNTER StatImportPendingInterrupt;
476	STAMCOUNTER StatExportPendingInterrupt;
477	STAMCOUNTER StatQueryCpuTick;
478	/** @} */
479
480
481	#elif defined(RT_OS_WINDOWS)
482	# ifdef VBOX_VMM_TARGET_ARMV8
483	/** Flag whether the ID registers were synced to the guest context
484	* (for first guest exec call on the EMT after loading the saved state). */
485	bool fIdRegsSynced;
486	# else
487	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
488	uint8_t fCurrentInterruptWindows;
489	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
490	uint8_t fDesiredInterruptWindows;
491	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
492	bool fLastInterruptShadow : 1;
493	uint32_t uPadding;
494	/** The VID_MSHAGN_F_XXX flags.
495	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
496	uint32_t fHandleAndGetFlags;
497	/** What VidMessageSlotMap returns and is used for passing exit info. */
498	RTR3PTR pvMsgSlotMapping;
499	/** The windows thread handle. */
500	RTR3PTR hNativeThreadHandle;
501	# endif
502
503	/** @name Statistics
504	* @{ */
505	STAMCOUNTER StatExitPortIo;
506	STAMCOUNTER StatExitMemUnmapped;
507	STAMCOUNTER StatExitMemIntercept;
508	STAMCOUNTER StatExitHalt;
509	STAMCOUNTER StatExitInterruptWindow;
510	STAMCOUNTER StatExitCpuId;
511	STAMCOUNTER StatExitMsr;
512	STAMCOUNTER StatExitException;
513	STAMCOUNTER StatExitExceptionBp;
514	STAMCOUNTER StatExitExceptionDb;
515	STAMCOUNTER StatExitExceptionGp;
516	STAMCOUNTER StatExitExceptionGpMesa;
517	STAMCOUNTER StatExitExceptionUd;
518	STAMCOUNTER StatExitExceptionUdHandled;
519	STAMCOUNTER StatExitUnrecoverable;
520	STAMCOUNTER StatGetMsgTimeout;
521	STAMCOUNTER StatStopCpuSuccess;
522	STAMCOUNTER StatStopCpuPending;
523	STAMCOUNTER StatStopCpuPendingAlerts;
524	STAMCOUNTER StatStopCpuPendingOdd;
525	STAMCOUNTER StatCancelChangedState;
526	STAMCOUNTER StatCancelAlertedThread;
527	STAMCOUNTER StatBreakOnCancel;
528	STAMCOUNTER StatBreakOnFFPre;
529	STAMCOUNTER StatBreakOnFFPost;
530	STAMCOUNTER StatBreakOnStatus;
531	STAMCOUNTER StatImportOnDemand;
532	STAMCOUNTER StatImportOnReturn;
533	STAMCOUNTER StatImportOnReturnSkipped;
534	STAMCOUNTER StatQueryCpuTick;
535	/** @} */
536
537	#elif defined(RT_OS_DARWIN)
538	# if defined(VBOX_VMM_TARGET_ARMV8)
539	/** The vCPU handle associated with the EMT executing this vCPU. */
540	hv_vcpu_t hVCpu;
541	/** Pointer to the exit information structure. */
542	hv_vcpu_exit_t *pHvExit;
543	/** Flag whether an event is pending. */
544	bool fEventPending;
545	/** Flag whether the vTimer got activated and is masked. */
546	bool fVTimerActivated;
547	/** Flag whether to update the vTimer offset. */
548	bool fVTimerOffUpdate;
549	/** Flag whether the ID registers were synced to the guest context
550	* (for first guest exec call on the EMT after loading the saved state). */
551	bool fIdRegsSynced;
552	# else
553	/** The vCPU handle associated with the EMT executing this vCPU. */
554	hv_vcpuid_t hVCpuId;
555
556	/** @name State shared with the VT-x code.
557	* @{ */
558	/** An additional error code used for some gurus. */
559	uint32_t u32HMError;
560	/** The last exit-to-ring-3 reason. */
561	int32_t rcLastExitToR3;
562	/** CPU-context changed flags (see HM_CHANGED_xxx). */
563	uint64_t fCtxChanged;
564
565	/** The guest VMCS information. */
566	VMXVMCSINFO VmcsInfo;
567
568	/** VT-x data. */
569	struct HMCPUVMX
570	{
571	/** @name Guest information.
572	* @{ */
573	/** Guest VMCS information shared with ring-3. */
574	VMXVMCSINFOSHARED VmcsInfo;
575	/** Nested-guest VMCS information shared with ring-3. */
576	VMXVMCSINFOSHARED VmcsInfoNstGst;
577	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
578	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
579	bool fSwitchedToNstGstVmcsCopyForRing3;
580	/** Whether the static guest VMCS controls has been merged with the
581	* nested-guest VMCS controls. */
582	bool fMergedNstGstCtls;
583	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
584	bool fCopiedNstGstToShadowVmcs;
585	/** Whether flushing the TLB is required due to switching to/from the
586	* nested-guest. */
587	bool fSwitchedNstGstFlushTlb;
588	/** Alignment. */
589	bool afAlignment0[4];
590	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
591	uint64_t u64GstMsrApicBase;
592	/** @} */
593
594	/** @name Error reporting and diagnostics.
595	* @{ */
596	/** VT-x error-reporting (mainly for ring-3 propagation). */
597	struct
598	{
599	RTCPUID idCurrentCpu;
600	RTCPUID idEnteredCpu;
601	RTHCPHYS HCPhysCurrentVmcs;
602	uint32_t u32VmcsRev;
603	uint32_t u32InstrError;
604	uint32_t u32ExitReason;
605	uint32_t u32GuestIntrState;
606	} LastError;
607	/** @} */
608	} vmx;
609
610	/** Event injection state. */
611	HMEVENT Event;
612
613	/** Current shadow paging mode for updating CR4.
614	* @todo move later (@bugref{9217}). */
615	PGMMODE enmShadowMode;
616	uint32_t u32TemporaryPadding;
617
618	/** The PAE PDPEs used with Nested Paging (only valid when
619	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
620	X86PDPE aPdpes[4];
621	/** Pointer to the VMX statistics. */
622	PVMXSTATISTICS pVmxStats;
623	# endif
624
625	/** @name Statistics
626	* @{ */
627	STAMCOUNTER StatExitAll;
628	STAMCOUNTER StatBreakOnCancel;
629	STAMCOUNTER StatBreakOnFFPre;
630	STAMCOUNTER StatBreakOnFFPost;
631	STAMCOUNTER StatBreakOnStatus;
632	STAMCOUNTER StatImportOnDemand;
633	STAMCOUNTER StatImportOnReturn;
634	STAMCOUNTER StatImportOnReturnSkipped;
635	STAMCOUNTER StatQueryCpuTick;
636	#ifdef VBOX_WITH_STATISTICS
637	STAMPROFILEADV StatProfGstStateImport;
638	STAMPROFILEADV StatProfGstStateExport;
639	#endif
640	/** @} */
641
642	/** @} */
643	#endif /* RT_OS_DARWIN */
644	} NEMCPU;
645	/** Pointer to NEM VMCPU instance data. */
646	typedef NEMCPU *PNEMCPU;
647
648	/** NEMCPU::u32Magic value. */
649	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
650	/** NEMCPU::u32Magic value after termination. */
651	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
652
653
654	#ifdef IN_RING0
655	# ifdef RT_OS_WINDOWS
656	/**
657	* Windows: Hypercall input/ouput page info.
658	*/
659	typedef struct NEMR0HYPERCALLDATA
660	{
661	/** Host physical address of the hypercall input/output page. */
662	RTHCPHYS HCPhysPage;
663	/** Pointer to the hypercall input/output page. */
664	uint8_t *pbPage;
665	/** Handle to the memory object of the hypercall input/output page. */
666	RTR0MEMOBJ hMemObj;
667	} NEMR0HYPERCALLDATA;
668	/** Pointer to a Windows hypercall input/output page info. */
669	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
670	# endif /* RT_OS_WINDOWS */
671
672	/**
673	* NEM GVMCPU instance data.
674	*/
675	typedef struct NEMR0PERVCPU
676	{
677	uint32_t uDummy;
678	} NEMR0PERVCPU;
679
680	/**
681	* NEM GVM instance data.
682	*/
683	typedef struct NEMR0PERVM
684	{
685	uint32_t uDummy;
686	} NEMR0PERVM;
687
688	#endif /* IN_RING*/
689
690
691	#ifdef IN_RING3
692
693	int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
694
695	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
696	int nemR3NativeInitAfterCPUM(PVM pVM);
697	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
698	int nemR3NativeTerm(PVM pVM);
699	void nemR3NativeReset(PVM pVM);
700	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
701	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
702	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
703	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
704
705	/**
706	* Forced flag notification call from VMEmt.h.
707	*
708	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
709	*
710	* @param pVM The cross context VM structure.
711	* @param pVCpu The cross context virtual CPU structure of the CPU
712	* to be notified.
713	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
714	*/
715	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
716
717	/**
718	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
719	* on whether to switch to the debug loop.
720	*
721	* @returns Final flag whether to switch to the debug loop.
722	* @param pVM The VM cross context VM structure.
723	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
724	* @thread EMT(0)
725	*/
726	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
727
728
729	/**
730	* Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
731	* on whether to switch to the debug loop.
732	*
733	* @returns Final flag whether to switch to the debug loop.
734	* @param pVM The VM cross context VM structure.
735	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
736	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
737	*/
738	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
739
740	#endif /* IN_RING3 */
741
742	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
743	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
744	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
745	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
746	PGMPAGETYPE enmType, uint8_t *pu2State);
747
748
749	#ifdef RT_OS_WINDOWS
750	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
751	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
752	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
753	# define NEM_MAX_UNMAP_PAGES 4095
754
755	#endif
756	/** @} */
757
758	RT_C_DECLS_END
759
760	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
761

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 105072

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