NEMInternal.h@ 107801

Last change on this file since 107801 was 107801, checked in by vboxsync, 4 weeks ago
VMM/NEM,Main: Feed the cpu bug mitigation parameters to both HM and NEM. jiraref:VBP-947
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1	/* $Id: NEMInternal.h 107801 2025-01-16 00:23:19Z 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	# ifdef NEM_WIN_WITH_A20
266	/** Set if we've started more than one CPU and cannot mess with A20. */
267	bool fA20Fixed : 1;
268	/** Set if A20 is enabled. */
269	bool fA20Enabled : 1;
270	# endif
271	# endif
272	/** The reported CPU vendor. */
273	CPUMCPUVENDOR enmCpuVendor;
274	/** Cache line flush size as a power of two. */
275	uint8_t cCacheLineFlushShift;
276	/** The result of WHvCapabilityCodeProcessorFeatures. */
277	union
278	{
279	/** 64-bit view. */
280	uint64_t u64;
281	# ifdef _WINHVAPIDEFS_H_
282	/** Interpreed features. */
283	WHV_PROCESSOR_FEATURES u;
284	# endif
285	} uCpuFeatures;
286
287	/** The partition handle. */
288	# ifdef _WINHVAPIDEFS_H_
289	WHV_PARTITION_HANDLE
290	# else
291	RTHCUINTPTR
292	# endif
293	hPartition;
294	/** The device handle for the partition, for use with Vid APIs or direct I/O
295	* controls. */
296	RTR3PTR hPartitionDevice;
297
298	/** Number of currently mapped pages. */
299	uint32_t volatile cMappedPages;
300	uint32_t u32Padding;
301	STAMCOUNTER StatMapPage;
302	STAMCOUNTER StatUnmapPage;
303	STAMCOUNTER StatMapPageFailed;
304	STAMCOUNTER StatUnmapPageFailed;
305	STAMPROFILE StatProfMapGpaRange;
306	STAMPROFILE StatProfUnmapGpaRange;
307	STAMPROFILE StatProfMapGpaRangePage;
308	STAMPROFILE StatProfUnmapGpaRangePage;
309
310	/** Statistics updated by NEMR0UpdateStatistics. */
311	struct
312	{
313	uint64_t cPagesAvailable;
314	uint64_t cPagesInUse;
315	} R0Stats;
316
317	# ifdef VBOX_VMM_TARGET_ARMV8
318	/** Re-distributor memory region for all vCPUs. */
319	RTGCPHYS GCPhysMmioBaseReDist;
320	/** Number of breakpoints supported (for syncing registers). */
321	uint32_t cBreakpoints;
322	/** Number of watchpoints supported (for syncing registers). */
323	uint32_t cWatchpoints;
324	# endif
325
326	#elif defined(RT_OS_DARWIN)
327	/** Set if we've created the EMTs. */
328	bool fCreatedEmts : 1;
329	/** Set if hv_vm_create() was called successfully. */
330	bool fCreatedVm : 1;
331	/** Set if EL2 is enabled. */
332	bool fEl2Enabled : 1;
333	# ifdef VBOX_VMM_TARGET_ARMV8
334	/** @name vTimer related state.
335	* @{ */
336	/** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
337	uint64_t u64CntFrqHz;
338	/** The vTimer offset programmed. */
339	uint64_t u64VTimerOff;
340	/** Dirty tracking slots. */
341	NEMHVMMIO2REGION aMmio2DirtyTracking[8];
342	/** The vCPU config. */
343	hv_vcpu_config_t hVCpuCfg;
344	/** @} */
345	# elif defined(VBOX_VMM_TARGET_X86)
346	/** Set if hv_vm_space_create() was called successfully. */
347	bool fCreatedAsid : 1;
348	/** Set if Last Branch Record (LBR) is enabled. */
349	bool fLbr;
350	/** The ASID for this VM (only valid if fCreatedAsid is true). */
351	hv_vm_space_t uVmAsid;
352	/** Number of mach time units per NS, for hv_vcpu_run_until(). */
353	uint64_t cMachTimePerNs;
354	/** Pause-loop exiting (PLE) gap in ticks. */
355	uint32_t cPleGapTicks;
356	/** Pause-loop exiting (PLE) window in ticks. */
357	uint32_t cPleWindowTicks;
358
359	/** The host LBR TOS (top-of-stack) MSR id. */
360	uint32_t idLbrTosMsr;
361	/** The host LBR select MSR id. */
362	uint32_t idLbrSelectMsr;
363	/** The host last event record from IP MSR id. */
364	uint32_t idLerFromIpMsr;
365	/** The host last event record to IP MSR id. */
366	uint32_t idLerToIpMsr;
367
368	/** The first valid host LBR branch-from-IP stack range. */
369	uint32_t idLbrFromIpMsrFirst;
370	/** The last valid host LBR branch-from-IP stack range. */
371	uint32_t idLbrFromIpMsrLast;
372
373	/** The first valid host LBR branch-to-IP stack range. */
374	uint32_t idLbrToIpMsrFirst;
375	/** The last valid host LBR branch-to-IP stack range. */
376	uint32_t idLbrToIpMsrLast;
377
378	/** The first valid host LBR info stack range. */
379	uint32_t idLbrInfoMsrFirst;
380	/** The last valid host LBR info stack range. */
381	uint32_t idLbrInfoMsrLast;
382	# endif /* VBOX_VMM_TARGET_X86 */
383
384	STAMCOUNTER StatMapPage;
385	STAMCOUNTER StatUnmapPage;
386	STAMCOUNTER StatMapPageFailed;
387	STAMCOUNTER StatUnmapPageFailed;
388	#endif /* RT_OS_DARWIN */
389	} NEM;
390	/** Pointer to NEM VM instance data. */
391	typedef NEM *PNEM;
392
393	/** NEM::u32Magic value. */
394	#define NEM_MAGIC UINT32_C(0x004d454e)
395	/** NEM::u32Magic value after termination. */
396	#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
397
398
399	/**
400	* NEM VMCPU Instance data.
401	*/
402	typedef struct NEMCPU
403	{
404	/** NEMCPU_MAGIC. */
405	uint32_t u32Magic;
406	/** Whether \#UD needs to be intercepted and presented to GIM. */
407	bool fGIMTrapXcptUD : 1;
408	/** Whether \#GP needs to be intercept for mesa driver workaround. */
409	bool fTrapXcptGpForLovelyMesaDrv: 1;
410	/** Whether we should use the debug loop because of single stepping or special
411	* debug breakpoints / events are armed. */
412	bool fUseDebugLoop : 1;
413	/** Whether we're executing a single instruction. */
414	bool fSingleInstruction : 1;
415	/** Set if we using the debug loop and wish to intercept RDTSC. */
416	bool fDebugWantRdTscExit : 1;
417	/** Whether we are currently executing in the debug loop.
418	* Mainly for assertions. */
419	bool fUsingDebugLoop : 1;
420	/** Set if we need to clear the trap flag because of single stepping. */
421	bool fClearTrapFlag : 1;
422	/** Whether we're using the hyper DR7 or guest DR7. */
423	bool fUsingHyperDR7 : 1;
424	/** Whether \#DE needs to be intercepted for GIM. */
425	bool fGCMTrapXcptDE : 1;
426	#ifdef VBOX_VMM_TARGET_X86
427	/** Set if indirect branch prediction barrier on VM exit. */
428	bool fIbpbOnVmExit : 1;
429	/** Set if indirect branch prediction barrier on VM entry. */
430	bool fIbpbOnVmEntry : 1;
431	/** Set if level 1 data cache should be flushed on VM entry. */
432	bool fL1dFlushOnVmEntry : 1;
433	/** Set if level 1 data cache should be flushed on EMT scheduling. */
434	bool fL1dFlushOnSched : 1;
435	/** Set if MDS related buffers should be cleared on VM entry. */
436	bool fMdsClearOnVmEntry : 1;
437	/** Set if MDS related buffers should be cleared on EMT scheduling. */
438	bool fMdsClearOnSched : 1;
439	#endif
440
441	#if defined(RT_OS_LINUX)
442	uint8_t abPadding[3];
443	/** The KVM VCpu file descriptor. */
444	int32_t fdVCpu;
445	/** Pointer to the KVM_RUN data exchange region. */
446	R3PTRTYPE(struct kvm_run *) pRun;
447	# ifdef VBOX_VMM_TARGET_ARMV8
448	/** The IRQ device levels from device_irq_level. */
449	uint64_t fIrqDeviceLvls;
450	/** Status of the IRQ line when last seen. */
451	bool fIrqLastSeen;
452	/** Status of the FIQ line when last seen. */
453	bool fFiqLastSeen;
454	# elif defined(VBOX_VMM_TARGET_X86)
455	/** The MSR_IA32_APICBASE value known to KVM. */
456	uint64_t uKvmApicBase;
457	# endif
458
459	/** @name Statistics
460	* @{ */
461	STAMCOUNTER StatExitTotal;
462	STAMCOUNTER StatExitIo;
463	STAMCOUNTER StatExitMmio;
464	STAMCOUNTER StatExitSetTpr;
465	STAMCOUNTER StatExitTprAccess;
466	STAMCOUNTER StatExitRdMsr;
467	STAMCOUNTER StatExitWrMsr;
468	STAMCOUNTER StatExitIrqWindowOpen;
469	STAMCOUNTER StatExitHalt;
470	STAMCOUNTER StatExitIntr;
471	STAMCOUNTER StatExitHypercall;
472	STAMCOUNTER StatExitDebug;
473	STAMCOUNTER StatExitBusLock;
474	STAMCOUNTER StatExitInternalErrorEmulation;
475	STAMCOUNTER StatExitInternalErrorFatal;
476	# if 0
477	STAMCOUNTER StatExitCpuId;
478	STAMCOUNTER StatExitUnrecoverable;
479	STAMCOUNTER StatGetMsgTimeout;
480	STAMCOUNTER StatStopCpuSuccess;
481	STAMCOUNTER StatStopCpuPending;
482	STAMCOUNTER StatStopCpuPendingAlerts;
483	STAMCOUNTER StatStopCpuPendingOdd;
484	STAMCOUNTER StatCancelChangedState;
485	STAMCOUNTER StatCancelAlertedThread;
486	# endif
487	STAMCOUNTER StatBreakOnCancel;
488	STAMCOUNTER StatBreakOnFFPre;
489	STAMCOUNTER StatBreakOnFFPost;
490	STAMCOUNTER StatBreakOnStatus;
491	STAMCOUNTER StatFlushExitOnReturn;
492	STAMCOUNTER StatFlushExitOnReturn1Loop;
493	STAMCOUNTER StatFlushExitOnReturn2Loops;
494	STAMCOUNTER StatFlushExitOnReturn3Loops;
495	STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
496	STAMCOUNTER StatImportOnDemand;
497	STAMCOUNTER StatImportOnReturn;
498	STAMCOUNTER StatImportOnReturnSkipped;
499	STAMCOUNTER StatImportPendingInterrupt;
500	STAMCOUNTER StatExportPendingInterrupt;
501	STAMCOUNTER StatQueryCpuTick;
502	/** @} */
503
504
505	#elif defined(RT_OS_WINDOWS)
506	# ifdef VBOX_VMM_TARGET_X86
507	/** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
508	uint8_t fCurrentInterruptWindows;
509	/** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
510	uint8_t fDesiredInterruptWindows;
511	/** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
512	bool fLastInterruptShadow : 1;
513	uint32_t uPadding;
514	/** The VID_MSHAGN_F_XXX flags.
515	* Either VID_MSHAGN_F_HANDLE_MESSAGE \| VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
516	uint32_t fHandleAndGetFlags;
517	/** What VidMessageSlotMap returns and is used for passing exit info. */
518	RTR3PTR pvMsgSlotMapping;
519	/** The windows thread handle. */
520	RTR3PTR hNativeThreadHandle;
521	# endif
522
523	/** @name Statistics
524	* @{ */
525	STAMCOUNTER StatExitPortIo;
526	STAMCOUNTER StatExitMemUnmapped;
527	STAMCOUNTER StatExitMemIntercept;
528	STAMCOUNTER StatExitHalt;
529	STAMCOUNTER StatExitInterruptWindow;
530	STAMCOUNTER StatExitCpuId;
531	STAMCOUNTER StatExitMsr;
532	STAMCOUNTER StatExitException;
533	STAMCOUNTER StatExitExceptionBp;
534	STAMCOUNTER StatExitExceptionDb;
535	STAMCOUNTER StatExitExceptionGp;
536	STAMCOUNTER StatExitExceptionGpMesa;
537	STAMCOUNTER StatExitExceptionUd;
538	STAMCOUNTER StatExitExceptionUdHandled;
539	STAMCOUNTER StatExitUnrecoverable;
540	STAMCOUNTER StatGetMsgTimeout;
541	STAMCOUNTER StatStopCpuSuccess;
542	STAMCOUNTER StatStopCpuPending;
543	STAMCOUNTER StatStopCpuPendingAlerts;
544	STAMCOUNTER StatStopCpuPendingOdd;
545	STAMCOUNTER StatCancelChangedState;
546	STAMCOUNTER StatCancelAlertedThread;
547	STAMCOUNTER StatBreakOnCancel;
548	STAMCOUNTER StatBreakOnFFPre;
549	STAMCOUNTER StatBreakOnFFPost;
550	STAMCOUNTER StatBreakOnStatus;
551	STAMCOUNTER StatImportOnDemand;
552	STAMCOUNTER StatImportOnReturn;
553	STAMCOUNTER StatImportOnReturnSkipped;
554	STAMCOUNTER StatQueryCpuTick;
555	/** @} */
556
557	#elif defined(RT_OS_DARWIN)
558	# ifdef VBOX_VMM_TARGET_ARMV8
559	/** The vCPU handle associated with the EMT executing this vCPU. */
560	hv_vcpu_t hVCpu;
561	/** Pointer to the exit information structure. */
562	hv_vcpu_exit_t *pHvExit;
563	/** Flag whether an event is pending. */
564	bool fEventPending;
565	/** Flag whether the vTimer got activated and is masked. */
566	bool fVTimerActivated;
567	/** Flag whether to update the vTimer offset. */
568	bool fVTimerOffUpdate;
569	/** Flag whether the ID registers were synced to the guest context
570	* (for first guest exec call on the EMT after loading the saved state). */
571	bool fIdRegsSynced;
572
573	# elif defined(VBOX_VMM_TARGET_X86)
574	/** The vCPU handle associated with the EMT executing this vCPU. */
575	hv_vcpuid_t hVCpuId;
576
577	/** @name State shared with the VT-x code.
578	* @{ */
579	/** An additional error code used for some gurus. */
580	uint32_t u32HMError;
581	/** The last exit-to-ring-3 reason. */
582	int32_t rcLastExitToR3;
583	/** CPU-context changed flags (see HM_CHANGED_xxx). */
584	uint64_t fCtxChanged;
585
586	/** The guest VMCS information. */
587	VMXVMCSINFO VmcsInfo;
588
589	/** VT-x data. */
590	struct HMCPUVMX
591	{
592	/** @name Guest information.
593	* @{ */
594	/** Guest VMCS information shared with ring-3. */
595	VMXVMCSINFOSHARED VmcsInfo;
596	/** Nested-guest VMCS information shared with ring-3. */
597	VMXVMCSINFOSHARED VmcsInfoNstGst;
598	/** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
599	* @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
600	bool fSwitchedToNstGstVmcsCopyForRing3;
601	/** Whether the static guest VMCS controls has been merged with the
602	* nested-guest VMCS controls. */
603	bool fMergedNstGstCtls;
604	/** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
605	bool fCopiedNstGstToShadowVmcs;
606	/** Whether flushing the TLB is required due to switching to/from the
607	* nested-guest. */
608	bool fSwitchedNstGstFlushTlb;
609	/** Alignment. */
610	bool afAlignment0[4];
611	/** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
612	uint64_t u64GstMsrApicBase;
613	/** @} */
614
615	/** @name Error reporting and diagnostics.
616	* @{ */
617	/** VT-x error-reporting (mainly for ring-3 propagation). */
618	struct
619	{
620	RTCPUID idCurrentCpu;
621	RTCPUID idEnteredCpu;
622	RTHCPHYS HCPhysCurrentVmcs;
623	uint32_t u32VmcsRev;
624	uint32_t u32InstrError;
625	uint32_t u32ExitReason;
626	uint32_t u32GuestIntrState;
627	} LastError;
628	/** @} */
629	} vmx;
630
631	/** Event injection state. */
632	HMEVENT Event;
633
634	/** Current shadow paging mode for updating CR4.
635	* @todo move later (@bugref{9217}). */
636	PGMMODE enmShadowMode;
637	uint32_t u32TemporaryPadding;
638
639	/** The PAE PDPEs used with Nested Paging (only valid when
640	* VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
641	X86PDPE aPdpes[4];
642	/** Pointer to the VMX statistics. */
643	PVMXSTATISTICS pVmxStats;
644	# endif /* VBOX_VMM_TARGET_X86 */
645
646	/** @name Statistics
647	* @{ */
648	STAMCOUNTER StatExitAll;
649	STAMCOUNTER StatBreakOnCancel;
650	STAMCOUNTER StatBreakOnFFPre;
651	STAMCOUNTER StatBreakOnFFPost;
652	STAMCOUNTER StatBreakOnStatus;
653	STAMCOUNTER StatImportOnDemand;
654	STAMCOUNTER StatImportOnReturn;
655	STAMCOUNTER StatImportOnReturnSkipped;
656	STAMCOUNTER StatQueryCpuTick;
657	# ifdef VBOX_WITH_STATISTICS
658	STAMPROFILEADV StatProfGstStateImport;
659	STAMPROFILEADV StatProfGstStateExport;
660	# endif
661	/** @} */
662
663	/** @} */
664	#endif /* RT_OS_DARWIN */
665	} NEMCPU;
666	/** Pointer to NEM VMCPU instance data. */
667	typedef NEMCPU *PNEMCPU;
668
669	/** NEMCPU::u32Magic value. */
670	#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
671	/** NEMCPU::u32Magic value after termination. */
672	#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
673
674
675	#ifdef IN_RING0
676	# ifdef RT_OS_WINDOWS
677	/**
678	* Windows: Hypercall input/ouput page info.
679	*/
680	typedef struct NEMR0HYPERCALLDATA
681	{
682	/** Host physical address of the hypercall input/output page. */
683	RTHCPHYS HCPhysPage;
684	/** Pointer to the hypercall input/output page. */
685	uint8_t *pbPage;
686	/** Handle to the memory object of the hypercall input/output page. */
687	RTR0MEMOBJ hMemObj;
688	} NEMR0HYPERCALLDATA;
689	/** Pointer to a Windows hypercall input/output page info. */
690	typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
691	# endif /* RT_OS_WINDOWS */
692
693	/**
694	* NEM GVMCPU instance data.
695	*/
696	typedef struct NEMR0PERVCPU
697	{
698	uint32_t uDummy;
699	} NEMR0PERVCPU;
700
701	/**
702	* NEM GVM instance data.
703	*/
704	typedef struct NEMR0PERVM
705	{
706	uint32_t uDummy;
707	} NEMR0PERVM;
708
709	#endif /* IN_RING*/
710
711
712	#ifdef IN_RING3
713
714	int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
715
716	int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
717	int nemR3NativeInitAfterCPUM(PVM pVM);
718	int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
719	int nemR3NativeTerm(PVM pVM);
720	void nemR3NativeReset(PVM pVM);
721	void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
722	VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
723	bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
724	bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
725
726	/** GIC API is currently implemented in NEM rather than in GIC. */
727	VMM_INT_DECL(int) NEMR3GicSetSpi(PVMCC pVM, uint32_t uIntId, bool fAsserted);
728	VMM_INT_DECL(int) NEMR3GicSetPpi(PVMCPUCC pVCpu, uint32_t uIntId, bool fAsserted);
729	VMM_INT_DECL(VBOXSTRICTRC) NEMR3GicReadSysReg(PVMCPUCC pVCpu, uint32_t u32Reg, uint64_t *pu64Value);
730	VMM_INT_DECL(VBOXSTRICTRC) NEMR3GicWriteSysReg(PVMCPUCC pVCpu, uint32_t u32Reg, uint64_t u64Value);
731
732	/**
733	* Forced flag notification call from VMEmt.h.
734	*
735	* This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
736	*
737	* @param pVM The cross context VM structure.
738	* @param pVCpu The cross context virtual CPU structure of the CPU
739	* to be notified.
740	* @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
741	*/
742	void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
743
744	/**
745	* Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
746	* on whether to switch to the debug loop.
747	*
748	* @returns Final flag whether to switch to the debug loop.
749	* @param pVM The VM cross context VM structure.
750	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
751	* @thread EMT(0)
752	*/
753	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
754
755
756	/**
757	* Called by NEMR3NotifyDebugEventChangedPerCpu() 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 pVCpu The cross context virtual CPU structure of the calling EMT.
763	* @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
764	*/
765	DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
766
767	#endif /* IN_RING3 */
768
769	void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
770	void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
771	RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
772	int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
773	PGMPAGETYPE enmType, uint8_t *pu2State);
774
775
776	#ifdef RT_OS_WINDOWS
777	/** Maximum number of pages we can map in a single NEMR0MapPages call. */
778	# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
779	/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
780	# define NEM_MAX_UNMAP_PAGES 4095
781
782	#endif
783	/** @} */
784
785	RT_C_DECLS_END
786
787	#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
788

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source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 107801

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