VirtualBox

source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 104385

Last change on this file since 104385 was 104385, checked in by vboxsync, 8 months ago

VMM/NEM: More work for the linux.arm64 support, only update interrupt levels when the differ from what was seen last (in order to avoid calling KVM when the in-kernel GIC is used which would result in an error), bugref:10391
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File size: 27.1 KB
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1/* $Id: NEMInternal.h 104385 2024-04-20 18:55:32Z 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
51RT_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 */
74typedef 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. */
116typedef unsigned hv_vcpuid_t;
117/** The HV VM memory space ID (ASID). */
118typedef 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 */
147typedef 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. */
157typedef 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 */
179typedef 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 */
210typedef 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 /** WHvRunVpExitReasonX64Cpuid is supported. */
255 bool fExtendedMsrExit : 1;
256 /** WHvRunVpExitReasonX64MsrAccess is supported. */
257 bool fExtendedCpuIdExit : 1;
258 /** WHvRunVpExitReasonException is supported. */
259 bool fExtendedXcptExit : 1;
260# ifdef NEM_WIN_WITH_A20
261 /** Set if we've started more than one CPU and cannot mess with A20. */
262 bool fA20Fixed : 1;
263 /** Set if A20 is enabled. */
264 bool fA20Enabled : 1;
265# endif
266 /** The reported CPU vendor. */
267 CPUMCPUVENDOR enmCpuVendor;
268 /** Cache line flush size as a power of two. */
269 uint8_t cCacheLineFlushShift;
270 /** The result of WHvCapabilityCodeProcessorFeatures. */
271 union
272 {
273 /** 64-bit view. */
274 uint64_t u64;
275# ifdef _WINHVAPIDEFS_H_
276 /** Interpreed features. */
277 WHV_PROCESSOR_FEATURES u;
278# endif
279 } uCpuFeatures;
280
281 /** The partition handle. */
282# ifdef _WINHVAPIDEFS_H_
283 WHV_PARTITION_HANDLE
284# else
285 RTHCUINTPTR
286# endif
287 hPartition;
288 /** The device handle for the partition, for use with Vid APIs or direct I/O
289 * controls. */
290 RTR3PTR hPartitionDevice;
291
292 /** Number of currently mapped pages. */
293 uint32_t volatile cMappedPages;
294 uint32_t u32Padding;
295 STAMCOUNTER StatMapPage;
296 STAMCOUNTER StatUnmapPage;
297 STAMCOUNTER StatMapPageFailed;
298 STAMCOUNTER StatUnmapPageFailed;
299 STAMPROFILE StatProfMapGpaRange;
300 STAMPROFILE StatProfUnmapGpaRange;
301 STAMPROFILE StatProfMapGpaRangePage;
302 STAMPROFILE StatProfUnmapGpaRangePage;
303
304 /** Statistics updated by NEMR0UpdateStatistics. */
305 struct
306 {
307 uint64_t cPagesAvailable;
308 uint64_t cPagesInUse;
309 } R0Stats;
310
311#elif defined(RT_OS_DARWIN)
312 /** Set if we've created the EMTs. */
313 bool fCreatedEmts : 1;
314 /** Set if hv_vm_create() was called successfully. */
315 bool fCreatedVm : 1;
316# if defined(VBOX_VMM_TARGET_ARMV8)
317 /** @name vTimer related state.
318 * @{ */
319 /** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
320 uint64_t u64CntFrqHz;
321 /** The vTimer offset programmed. */
322 uint64_t u64VTimerOff;
323 /** Dirty tracking slots. */
324 NEMHVMMIO2REGION aMmio2DirtyTracking[8];
325 /** The vCPU config. */
326 hv_vcpu_config_t hVCpuCfg;
327 /** @} */
328# else
329 /** Set if hv_vm_space_create() was called successfully. */
330 bool fCreatedAsid : 1;
331 /** Set if Last Branch Record (LBR) is enabled. */
332 bool fLbr;
333 /** The ASID for this VM (only valid if fCreatedAsid is true). */
334 hv_vm_space_t uVmAsid;
335 /** Number of mach time units per NS, for hv_vcpu_run_until(). */
336 uint64_t cMachTimePerNs;
337 /** Pause-loop exiting (PLE) gap in ticks. */
338 uint32_t cPleGapTicks;
339 /** Pause-loop exiting (PLE) window in ticks. */
340 uint32_t cPleWindowTicks;
341
342 /** The host LBR TOS (top-of-stack) MSR id. */
343 uint32_t idLbrTosMsr;
344 /** The host LBR select MSR id. */
345 uint32_t idLbrSelectMsr;
346 /** The host last event record from IP MSR id. */
347 uint32_t idLerFromIpMsr;
348 /** The host last event record to IP MSR id. */
349 uint32_t idLerToIpMsr;
350
351 /** The first valid host LBR branch-from-IP stack range. */
352 uint32_t idLbrFromIpMsrFirst;
353 /** The last valid host LBR branch-from-IP stack range. */
354 uint32_t idLbrFromIpMsrLast;
355
356 /** The first valid host LBR branch-to-IP stack range. */
357 uint32_t idLbrToIpMsrFirst;
358 /** The last valid host LBR branch-to-IP stack range. */
359 uint32_t idLbrToIpMsrLast;
360
361 /** The first valid host LBR info stack range. */
362 uint32_t idLbrInfoMsrFirst;
363 /** The last valid host LBR info stack range. */
364 uint32_t idLbrInfoMsrLast;
365# endif
366
367 STAMCOUNTER StatMapPage;
368 STAMCOUNTER StatUnmapPage;
369 STAMCOUNTER StatMapPageFailed;
370 STAMCOUNTER StatUnmapPageFailed;
371#endif /* RT_OS_WINDOWS */
372} NEM;
373/** Pointer to NEM VM instance data. */
374typedef NEM *PNEM;
375
376/** NEM::u32Magic value. */
377#define NEM_MAGIC UINT32_C(0x004d454e)
378/** NEM::u32Magic value after termination. */
379#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
380
381
382/**
383 * NEM VMCPU Instance data.
384 */
385typedef struct NEMCPU
386{
387 /** NEMCPU_MAGIC. */
388 uint32_t u32Magic;
389 /** Whether \#UD needs to be intercepted and presented to GIM. */
390 bool fGIMTrapXcptUD : 1;
391 /** Whether \#GP needs to be intercept for mesa driver workaround. */
392 bool fTrapXcptGpForLovelyMesaDrv: 1;
393 /** Whether we should use the debug loop because of single stepping or special
394 * debug breakpoints / events are armed. */
395 bool fUseDebugLoop : 1;
396 /** Whether we're executing a single instruction. */
397 bool fSingleInstruction : 1;
398 /** Set if we using the debug loop and wish to intercept RDTSC. */
399 bool fDebugWantRdTscExit : 1;
400 /** Whether we are currently executing in the debug loop.
401 * Mainly for assertions. */
402 bool fUsingDebugLoop : 1;
403 /** Set if we need to clear the trap flag because of single stepping. */
404 bool fClearTrapFlag : 1;
405 /** Whether we're using the hyper DR7 or guest DR7. */
406 bool fUsingHyperDR7 : 1;
407 /** Whether \#DE needs to be intercepted for GIM. */
408 bool fGCMTrapXcptDE : 1;
409
410#if defined(RT_OS_LINUX)
411 uint8_t abPadding[3];
412 /** The KVM VCpu file descriptor. */
413 int32_t fdVCpu;
414 /** Pointer to the KVM_RUN data exchange region. */
415 R3PTRTYPE(struct kvm_run *) pRun;
416# if defined(VBOX_VMM_TARGET_ARMV8)
417 /** The IRQ device levels from device_irq_level. */
418 uint64_t fIrqDeviceLvls;
419 /** Status of the IRQ line when last seen. */
420 bool fIrqLastSeen;
421 /** Status of the FIQ line when last seen. */
422 bool fFiqLastSeen;
423# else
424 /** The MSR_IA32_APICBASE value known to KVM. */
425 uint64_t uKvmApicBase;
426#endif
427
428 /** @name Statistics
429 * @{ */
430 STAMCOUNTER StatExitTotal;
431 STAMCOUNTER StatExitIo;
432 STAMCOUNTER StatExitMmio;
433 STAMCOUNTER StatExitSetTpr;
434 STAMCOUNTER StatExitTprAccess;
435 STAMCOUNTER StatExitRdMsr;
436 STAMCOUNTER StatExitWrMsr;
437 STAMCOUNTER StatExitIrqWindowOpen;
438 STAMCOUNTER StatExitHalt;
439 STAMCOUNTER StatExitIntr;
440 STAMCOUNTER StatExitHypercall;
441 STAMCOUNTER StatExitDebug;
442 STAMCOUNTER StatExitBusLock;
443 STAMCOUNTER StatExitInternalErrorEmulation;
444 STAMCOUNTER StatExitInternalErrorFatal;
445# if 0
446 STAMCOUNTER StatExitCpuId;
447 STAMCOUNTER StatExitUnrecoverable;
448 STAMCOUNTER StatGetMsgTimeout;
449 STAMCOUNTER StatStopCpuSuccess;
450 STAMCOUNTER StatStopCpuPending;
451 STAMCOUNTER StatStopCpuPendingAlerts;
452 STAMCOUNTER StatStopCpuPendingOdd;
453 STAMCOUNTER StatCancelChangedState;
454 STAMCOUNTER StatCancelAlertedThread;
455# endif
456 STAMCOUNTER StatBreakOnCancel;
457 STAMCOUNTER StatBreakOnFFPre;
458 STAMCOUNTER StatBreakOnFFPost;
459 STAMCOUNTER StatBreakOnStatus;
460 STAMCOUNTER StatFlushExitOnReturn;
461 STAMCOUNTER StatFlushExitOnReturn1Loop;
462 STAMCOUNTER StatFlushExitOnReturn2Loops;
463 STAMCOUNTER StatFlushExitOnReturn3Loops;
464 STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
465 STAMCOUNTER StatImportOnDemand;
466 STAMCOUNTER StatImportOnReturn;
467 STAMCOUNTER StatImportOnReturnSkipped;
468 STAMCOUNTER StatImportPendingInterrupt;
469 STAMCOUNTER StatExportPendingInterrupt;
470 STAMCOUNTER StatQueryCpuTick;
471 /** @} */
472
473
474#elif defined(RT_OS_WINDOWS)
475 /** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
476 uint8_t fCurrentInterruptWindows;
477 /** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
478 uint8_t fDesiredInterruptWindows;
479 /** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
480 bool fLastInterruptShadow : 1;
481 uint32_t uPadding;
482 /** The VID_MSHAGN_F_XXX flags.
483 * Either VID_MSHAGN_F_HANDLE_MESSAGE | VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
484 uint32_t fHandleAndGetFlags;
485 /** What VidMessageSlotMap returns and is used for passing exit info. */
486 RTR3PTR pvMsgSlotMapping;
487 /** The windows thread handle. */
488 RTR3PTR hNativeThreadHandle;
489
490 /** @name Statistics
491 * @{ */
492 STAMCOUNTER StatExitPortIo;
493 STAMCOUNTER StatExitMemUnmapped;
494 STAMCOUNTER StatExitMemIntercept;
495 STAMCOUNTER StatExitHalt;
496 STAMCOUNTER StatExitInterruptWindow;
497 STAMCOUNTER StatExitCpuId;
498 STAMCOUNTER StatExitMsr;
499 STAMCOUNTER StatExitException;
500 STAMCOUNTER StatExitExceptionBp;
501 STAMCOUNTER StatExitExceptionDb;
502 STAMCOUNTER StatExitExceptionGp;
503 STAMCOUNTER StatExitExceptionGpMesa;
504 STAMCOUNTER StatExitExceptionUd;
505 STAMCOUNTER StatExitExceptionUdHandled;
506 STAMCOUNTER StatExitUnrecoverable;
507 STAMCOUNTER StatGetMsgTimeout;
508 STAMCOUNTER StatStopCpuSuccess;
509 STAMCOUNTER StatStopCpuPending;
510 STAMCOUNTER StatStopCpuPendingAlerts;
511 STAMCOUNTER StatStopCpuPendingOdd;
512 STAMCOUNTER StatCancelChangedState;
513 STAMCOUNTER StatCancelAlertedThread;
514 STAMCOUNTER StatBreakOnCancel;
515 STAMCOUNTER StatBreakOnFFPre;
516 STAMCOUNTER StatBreakOnFFPost;
517 STAMCOUNTER StatBreakOnStatus;
518 STAMCOUNTER StatImportOnDemand;
519 STAMCOUNTER StatImportOnReturn;
520 STAMCOUNTER StatImportOnReturnSkipped;
521 STAMCOUNTER StatQueryCpuTick;
522 /** @} */
523
524#elif defined(RT_OS_DARWIN)
525# if defined(VBOX_VMM_TARGET_ARMV8)
526 /** The vCPU handle associated with the EMT executing this vCPU. */
527 hv_vcpu_t hVCpu;
528 /** Pointer to the exit information structure. */
529 hv_vcpu_exit_t *pHvExit;
530 /** Flag whether an event is pending. */
531 bool fEventPending;
532 /** Flag whether the vTimer got activated and is masked. */
533 bool fVTimerActivated;
534 /** Flag whether to update the vTimer offset. */
535 bool fVTimerOffUpdate;
536 /** Flag whether the ID registers were synced to the guest context
537 * (for first guest exec call on the EMT after loading the saved state). */
538 bool fIdRegsSynced;
539# else
540 /** The vCPU handle associated with the EMT executing this vCPU. */
541 hv_vcpuid_t hVCpuId;
542
543 /** @name State shared with the VT-x code.
544 * @{ */
545 /** An additional error code used for some gurus. */
546 uint32_t u32HMError;
547 /** The last exit-to-ring-3 reason. */
548 int32_t rcLastExitToR3;
549 /** CPU-context changed flags (see HM_CHANGED_xxx). */
550 uint64_t fCtxChanged;
551
552 /** The guest VMCS information. */
553 VMXVMCSINFO VmcsInfo;
554
555 /** VT-x data. */
556 struct HMCPUVMX
557 {
558 /** @name Guest information.
559 * @{ */
560 /** Guest VMCS information shared with ring-3. */
561 VMXVMCSINFOSHARED VmcsInfo;
562 /** Nested-guest VMCS information shared with ring-3. */
563 VMXVMCSINFOSHARED VmcsInfoNstGst;
564 /** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
565 * @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
566 bool fSwitchedToNstGstVmcsCopyForRing3;
567 /** Whether the static guest VMCS controls has been merged with the
568 * nested-guest VMCS controls. */
569 bool fMergedNstGstCtls;
570 /** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
571 bool fCopiedNstGstToShadowVmcs;
572 /** Whether flushing the TLB is required due to switching to/from the
573 * nested-guest. */
574 bool fSwitchedNstGstFlushTlb;
575 /** Alignment. */
576 bool afAlignment0[4];
577 /** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
578 uint64_t u64GstMsrApicBase;
579 /** @} */
580
581 /** @name Error reporting and diagnostics.
582 * @{ */
583 /** VT-x error-reporting (mainly for ring-3 propagation). */
584 struct
585 {
586 RTCPUID idCurrentCpu;
587 RTCPUID idEnteredCpu;
588 RTHCPHYS HCPhysCurrentVmcs;
589 uint32_t u32VmcsRev;
590 uint32_t u32InstrError;
591 uint32_t u32ExitReason;
592 uint32_t u32GuestIntrState;
593 } LastError;
594 /** @} */
595 } vmx;
596
597 /** Event injection state. */
598 HMEVENT Event;
599
600 /** Current shadow paging mode for updating CR4.
601 * @todo move later (@bugref{9217}). */
602 PGMMODE enmShadowMode;
603 uint32_t u32TemporaryPadding;
604
605 /** The PAE PDPEs used with Nested Paging (only valid when
606 * VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
607 X86PDPE aPdpes[4];
608 /** Pointer to the VMX statistics. */
609 PVMXSTATISTICS pVmxStats;
610# endif
611
612 /** @name Statistics
613 * @{ */
614 STAMCOUNTER StatExitAll;
615 STAMCOUNTER StatBreakOnCancel;
616 STAMCOUNTER StatBreakOnFFPre;
617 STAMCOUNTER StatBreakOnFFPost;
618 STAMCOUNTER StatBreakOnStatus;
619 STAMCOUNTER StatImportOnDemand;
620 STAMCOUNTER StatImportOnReturn;
621 STAMCOUNTER StatImportOnReturnSkipped;
622 STAMCOUNTER StatQueryCpuTick;
623#ifdef VBOX_WITH_STATISTICS
624 STAMPROFILEADV StatProfGstStateImport;
625 STAMPROFILEADV StatProfGstStateExport;
626#endif
627 /** @} */
628
629 /** @} */
630#endif /* RT_OS_DARWIN */
631} NEMCPU;
632/** Pointer to NEM VMCPU instance data. */
633typedef NEMCPU *PNEMCPU;
634
635/** NEMCPU::u32Magic value. */
636#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
637/** NEMCPU::u32Magic value after termination. */
638#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
639
640
641#ifdef IN_RING0
642# ifdef RT_OS_WINDOWS
643/**
644 * Windows: Hypercall input/ouput page info.
645 */
646typedef struct NEMR0HYPERCALLDATA
647{
648 /** Host physical address of the hypercall input/output page. */
649 RTHCPHYS HCPhysPage;
650 /** Pointer to the hypercall input/output page. */
651 uint8_t *pbPage;
652 /** Handle to the memory object of the hypercall input/output page. */
653 RTR0MEMOBJ hMemObj;
654} NEMR0HYPERCALLDATA;
655/** Pointer to a Windows hypercall input/output page info. */
656typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
657# endif /* RT_OS_WINDOWS */
658
659/**
660 * NEM GVMCPU instance data.
661 */
662typedef struct NEMR0PERVCPU
663{
664 uint32_t uDummy;
665} NEMR0PERVCPU;
666
667/**
668 * NEM GVM instance data.
669 */
670typedef struct NEMR0PERVM
671{
672 uint32_t uDummy;
673} NEMR0PERVM;
674
675#endif /* IN_RING*/
676
677
678#ifdef IN_RING3
679
680int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
681
682int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
683int nemR3NativeInitAfterCPUM(PVM pVM);
684int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
685int nemR3NativeTerm(PVM pVM);
686void nemR3NativeReset(PVM pVM);
687void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
688VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
689bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
690bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
691
692/**
693 * Forced flag notification call from VMEmt.h.
694 *
695 * This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
696 *
697 * @param pVM The cross context VM structure.
698 * @param pVCpu The cross context virtual CPU structure of the CPU
699 * to be notified.
700 * @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
701 */
702void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
703
704/**
705 * Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
706 * on whether to switch to the debug loop.
707 *
708 * @returns Final flag whether to switch to the debug loop.
709 * @param pVM The VM cross context VM structure.
710 * @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
711 * @thread EMT(0)
712 */
713DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
714
715
716/**
717 * Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
718 * on whether to switch to the debug loop.
719 *
720 * @returns Final flag whether to switch to the debug loop.
721 * @param pVM The VM cross context VM structure.
722 * @param pVCpu The cross context virtual CPU structure of the calling EMT.
723 * @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
724 */
725DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
726
727#endif /* IN_RING3 */
728
729void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
730void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
731 RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
732int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
733 PGMPAGETYPE enmType, uint8_t *pu2State);
734
735
736#ifdef RT_OS_WINDOWS
737/** Maximum number of pages we can map in a single NEMR0MapPages call. */
738# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
739/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
740# define NEM_MAX_UNMAP_PAGES 4095
741
742#endif
743/** @} */
744
745RT_C_DECLS_END
746
747#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
748
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