VirtualBox

source: vbox/trunk/src/VBox/VMM/include/NEMInternal.h@ 102735

Last change on this file since 102735 was 101496, checked in by vboxsync, 14 months ago

VMM,Main: Don't hardcode the vTimer interrupt number in the NEM backend but let the configuration constructor decide the value so it matches the FDT, bugref:10390 bugref:10528
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1/* $Id: NEMInternal.h 101496 2023-10-18 11:27:55Z 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 /** KVM_CAP_X86_ROBUST_SINGLESTEP. */
239 bool fRobustSingleStep;
240
241 /** Hint where there might be a free slot. */
242 uint16_t idPrevSlot;
243 /** Memory slot ID allocation bitmap. */
244 uint64_t bmSlotIds[_32K / 8 / sizeof(uint64_t)];
245
246#elif defined(RT_OS_WINDOWS)
247 /** Set if we've created the EMTs. */
248 bool fCreatedEmts : 1;
249 /** WHvRunVpExitReasonX64Cpuid is supported. */
250 bool fExtendedMsrExit : 1;
251 /** WHvRunVpExitReasonX64MsrAccess is supported. */
252 bool fExtendedCpuIdExit : 1;
253 /** WHvRunVpExitReasonException is supported. */
254 bool fExtendedXcptExit : 1;
255# ifdef NEM_WIN_WITH_A20
256 /** Set if we've started more than one CPU and cannot mess with A20. */
257 bool fA20Fixed : 1;
258 /** Set if A20 is enabled. */
259 bool fA20Enabled : 1;
260# endif
261 /** The reported CPU vendor. */
262 CPUMCPUVENDOR enmCpuVendor;
263 /** Cache line flush size as a power of two. */
264 uint8_t cCacheLineFlushShift;
265 /** The result of WHvCapabilityCodeProcessorFeatures. */
266 union
267 {
268 /** 64-bit view. */
269 uint64_t u64;
270# ifdef _WINHVAPIDEFS_H_
271 /** Interpreed features. */
272 WHV_PROCESSOR_FEATURES u;
273# endif
274 } uCpuFeatures;
275
276 /** The partition handle. */
277# ifdef _WINHVAPIDEFS_H_
278 WHV_PARTITION_HANDLE
279# else
280 RTHCUINTPTR
281# endif
282 hPartition;
283 /** The device handle for the partition, for use with Vid APIs or direct I/O
284 * controls. */
285 RTR3PTR hPartitionDevice;
286
287 /** Number of currently mapped pages. */
288 uint32_t volatile cMappedPages;
289 uint32_t u32Padding;
290 STAMCOUNTER StatMapPage;
291 STAMCOUNTER StatUnmapPage;
292 STAMCOUNTER StatMapPageFailed;
293 STAMCOUNTER StatUnmapPageFailed;
294 STAMPROFILE StatProfMapGpaRange;
295 STAMPROFILE StatProfUnmapGpaRange;
296 STAMPROFILE StatProfMapGpaRangePage;
297 STAMPROFILE StatProfUnmapGpaRangePage;
298
299 /** Statistics updated by NEMR0UpdateStatistics. */
300 struct
301 {
302 uint64_t cPagesAvailable;
303 uint64_t cPagesInUse;
304 } R0Stats;
305
306#elif defined(RT_OS_DARWIN)
307 /** Set if we've created the EMTs. */
308 bool fCreatedEmts : 1;
309 /** Set if hv_vm_create() was called successfully. */
310 bool fCreatedVm : 1;
311# if defined(VBOX_VMM_TARGET_ARMV8)
312 /** @name vTimer related state.
313 * @{ */
314 /** The counter frequency in Hz as obtained from CNTFRQ_EL0. */
315 uint64_t u64CntFrqHz;
316 /** The vTimer offset programmed. */
317 uint64_t u64VTimerOff;
318 /** Dirty tracking slots. */
319 NEMHVMMIO2REGION aMmio2DirtyTracking[8];
320 /** The vCPU config. */
321 hv_vcpu_config_t hVCpuCfg;
322 /** @} */
323# else
324 /** Set if hv_vm_space_create() was called successfully. */
325 bool fCreatedAsid : 1;
326 /** Set if Last Branch Record (LBR) is enabled. */
327 bool fLbr;
328 /** The ASID for this VM (only valid if fCreatedAsid is true). */
329 hv_vm_space_t uVmAsid;
330 /** Number of mach time units per NS, for hv_vcpu_run_until(). */
331 uint64_t cMachTimePerNs;
332 /** Pause-loop exiting (PLE) gap in ticks. */
333 uint32_t cPleGapTicks;
334 /** Pause-loop exiting (PLE) window in ticks. */
335 uint32_t cPleWindowTicks;
336
337 /** The host LBR TOS (top-of-stack) MSR id. */
338 uint32_t idLbrTosMsr;
339 /** The host LBR select MSR id. */
340 uint32_t idLbrSelectMsr;
341 /** The host last event record from IP MSR id. */
342 uint32_t idLerFromIpMsr;
343 /** The host last event record to IP MSR id. */
344 uint32_t idLerToIpMsr;
345
346 /** The first valid host LBR branch-from-IP stack range. */
347 uint32_t idLbrFromIpMsrFirst;
348 /** The last valid host LBR branch-from-IP stack range. */
349 uint32_t idLbrFromIpMsrLast;
350
351 /** The first valid host LBR branch-to-IP stack range. */
352 uint32_t idLbrToIpMsrFirst;
353 /** The last valid host LBR branch-to-IP stack range. */
354 uint32_t idLbrToIpMsrLast;
355
356 /** The first valid host LBR info stack range. */
357 uint32_t idLbrInfoMsrFirst;
358 /** The last valid host LBR info stack range. */
359 uint32_t idLbrInfoMsrLast;
360# endif
361
362 STAMCOUNTER StatMapPage;
363 STAMCOUNTER StatUnmapPage;
364 STAMCOUNTER StatMapPageFailed;
365 STAMCOUNTER StatUnmapPageFailed;
366#endif /* RT_OS_WINDOWS */
367} NEM;
368/** Pointer to NEM VM instance data. */
369typedef NEM *PNEM;
370
371/** NEM::u32Magic value. */
372#define NEM_MAGIC UINT32_C(0x004d454e)
373/** NEM::u32Magic value after termination. */
374#define NEM_MAGIC_DEAD UINT32_C(0xdead1111)
375
376
377/**
378 * NEM VMCPU Instance data.
379 */
380typedef struct NEMCPU
381{
382 /** NEMCPU_MAGIC. */
383 uint32_t u32Magic;
384 /** Whether \#UD needs to be intercepted and presented to GIM. */
385 bool fGIMTrapXcptUD : 1;
386 /** Whether \#GP needs to be intercept for mesa driver workaround. */
387 bool fTrapXcptGpForLovelyMesaDrv: 1;
388 /** Whether we should use the debug loop because of single stepping or special
389 * debug breakpoints / events are armed. */
390 bool fUseDebugLoop : 1;
391 /** Whether we're executing a single instruction. */
392 bool fSingleInstruction : 1;
393 /** Set if we using the debug loop and wish to intercept RDTSC. */
394 bool fDebugWantRdTscExit : 1;
395 /** Whether we are currently executing in the debug loop.
396 * Mainly for assertions. */
397 bool fUsingDebugLoop : 1;
398 /** Set if we need to clear the trap flag because of single stepping. */
399 bool fClearTrapFlag : 1;
400 /** Whether we're using the hyper DR7 or guest DR7. */
401 bool fUsingHyperDR7 : 1;
402 /** Whether \#DE needs to be intercepted for GIM. */
403 bool fGCMTrapXcptDE : 1;
404
405#if defined(RT_OS_LINUX)
406 uint8_t abPadding[3];
407 /** The KVM VCpu file descriptor. */
408 int32_t fdVCpu;
409 /** Pointer to the KVM_RUN data exchange region. */
410 R3PTRTYPE(struct kvm_run *) pRun;
411 /** The MSR_IA32_APICBASE value known to KVM. */
412 uint64_t uKvmApicBase;
413
414 /** @name Statistics
415 * @{ */
416 STAMCOUNTER StatExitTotal;
417 STAMCOUNTER StatExitIo;
418 STAMCOUNTER StatExitMmio;
419 STAMCOUNTER StatExitSetTpr;
420 STAMCOUNTER StatExitTprAccess;
421 STAMCOUNTER StatExitRdMsr;
422 STAMCOUNTER StatExitWrMsr;
423 STAMCOUNTER StatExitIrqWindowOpen;
424 STAMCOUNTER StatExitHalt;
425 STAMCOUNTER StatExitIntr;
426 STAMCOUNTER StatExitHypercall;
427 STAMCOUNTER StatExitDebug;
428 STAMCOUNTER StatExitBusLock;
429 STAMCOUNTER StatExitInternalErrorEmulation;
430 STAMCOUNTER StatExitInternalErrorFatal;
431# if 0
432 STAMCOUNTER StatExitCpuId;
433 STAMCOUNTER StatExitUnrecoverable;
434 STAMCOUNTER StatGetMsgTimeout;
435 STAMCOUNTER StatStopCpuSuccess;
436 STAMCOUNTER StatStopCpuPending;
437 STAMCOUNTER StatStopCpuPendingAlerts;
438 STAMCOUNTER StatStopCpuPendingOdd;
439 STAMCOUNTER StatCancelChangedState;
440 STAMCOUNTER StatCancelAlertedThread;
441# endif
442 STAMCOUNTER StatBreakOnCancel;
443 STAMCOUNTER StatBreakOnFFPre;
444 STAMCOUNTER StatBreakOnFFPost;
445 STAMCOUNTER StatBreakOnStatus;
446 STAMCOUNTER StatFlushExitOnReturn;
447 STAMCOUNTER StatFlushExitOnReturn1Loop;
448 STAMCOUNTER StatFlushExitOnReturn2Loops;
449 STAMCOUNTER StatFlushExitOnReturn3Loops;
450 STAMCOUNTER StatFlushExitOnReturn4PlusLoops;
451 STAMCOUNTER StatImportOnDemand;
452 STAMCOUNTER StatImportOnReturn;
453 STAMCOUNTER StatImportOnReturnSkipped;
454 STAMCOUNTER StatImportPendingInterrupt;
455 STAMCOUNTER StatExportPendingInterrupt;
456 STAMCOUNTER StatQueryCpuTick;
457 /** @} */
458
459
460#elif defined(RT_OS_WINDOWS)
461 /** The current state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
462 uint8_t fCurrentInterruptWindows;
463 /** The desired state of the interrupt windows (NEM_WIN_INTW_F_XXX). */
464 uint8_t fDesiredInterruptWindows;
465 /** Last copy of HV_X64_VP_EXECUTION_STATE::InterruptShadow. */
466 bool fLastInterruptShadow : 1;
467 uint32_t uPadding;
468 /** The VID_MSHAGN_F_XXX flags.
469 * Either VID_MSHAGN_F_HANDLE_MESSAGE | VID_MSHAGN_F_GET_NEXT_MESSAGE or zero. */
470 uint32_t fHandleAndGetFlags;
471 /** What VidMessageSlotMap returns and is used for passing exit info. */
472 RTR3PTR pvMsgSlotMapping;
473 /** The windows thread handle. */
474 RTR3PTR hNativeThreadHandle;
475
476 /** @name Statistics
477 * @{ */
478 STAMCOUNTER StatExitPortIo;
479 STAMCOUNTER StatExitMemUnmapped;
480 STAMCOUNTER StatExitMemIntercept;
481 STAMCOUNTER StatExitHalt;
482 STAMCOUNTER StatExitInterruptWindow;
483 STAMCOUNTER StatExitCpuId;
484 STAMCOUNTER StatExitMsr;
485 STAMCOUNTER StatExitException;
486 STAMCOUNTER StatExitExceptionBp;
487 STAMCOUNTER StatExitExceptionDb;
488 STAMCOUNTER StatExitExceptionGp;
489 STAMCOUNTER StatExitExceptionGpMesa;
490 STAMCOUNTER StatExitExceptionUd;
491 STAMCOUNTER StatExitExceptionUdHandled;
492 STAMCOUNTER StatExitUnrecoverable;
493 STAMCOUNTER StatGetMsgTimeout;
494 STAMCOUNTER StatStopCpuSuccess;
495 STAMCOUNTER StatStopCpuPending;
496 STAMCOUNTER StatStopCpuPendingAlerts;
497 STAMCOUNTER StatStopCpuPendingOdd;
498 STAMCOUNTER StatCancelChangedState;
499 STAMCOUNTER StatCancelAlertedThread;
500 STAMCOUNTER StatBreakOnCancel;
501 STAMCOUNTER StatBreakOnFFPre;
502 STAMCOUNTER StatBreakOnFFPost;
503 STAMCOUNTER StatBreakOnStatus;
504 STAMCOUNTER StatImportOnDemand;
505 STAMCOUNTER StatImportOnReturn;
506 STAMCOUNTER StatImportOnReturnSkipped;
507 STAMCOUNTER StatQueryCpuTick;
508 /** @} */
509
510#elif defined(RT_OS_DARWIN)
511# if defined(VBOX_VMM_TARGET_ARMV8)
512 /** The vCPU handle associated with the EMT executing this vCPU. */
513 hv_vcpu_t hVCpu;
514 /** Pointer to the exit information structure. */
515 hv_vcpu_exit_t *pHvExit;
516 /** Flag whether an event is pending. */
517 bool fEventPending;
518 /** Flag whether the vTimer got activated and is masked. */
519 bool fVTimerActivated;
520 /** Flag whether to update the vTimer offset. */
521 bool fVTimerOffUpdate;
522 /** Flag whether the ID registers were synced to the guest context
523 * (for first guest exec call on the EMT after loading the saved state). */
524 bool fIdRegsSynced;
525# else
526 /** The vCPU handle associated with the EMT executing this vCPU. */
527 hv_vcpuid_t hVCpuId;
528
529 /** @name State shared with the VT-x code.
530 * @{ */
531 /** An additional error code used for some gurus. */
532 uint32_t u32HMError;
533 /** The last exit-to-ring-3 reason. */
534 int32_t rcLastExitToR3;
535 /** CPU-context changed flags (see HM_CHANGED_xxx). */
536 uint64_t fCtxChanged;
537
538 /** The guest VMCS information. */
539 VMXVMCSINFO VmcsInfo;
540
541 /** VT-x data. */
542 struct HMCPUVMX
543 {
544 /** @name Guest information.
545 * @{ */
546 /** Guest VMCS information shared with ring-3. */
547 VMXVMCSINFOSHARED VmcsInfo;
548 /** Nested-guest VMCS information shared with ring-3. */
549 VMXVMCSINFOSHARED VmcsInfoNstGst;
550 /** Whether the nested-guest VMCS was the last current VMCS (shadow copy for ring-3).
551 * @see HMR0PERVCPU::vmx.fSwitchedToNstGstVmcs */
552 bool fSwitchedToNstGstVmcsCopyForRing3;
553 /** Whether the static guest VMCS controls has been merged with the
554 * nested-guest VMCS controls. */
555 bool fMergedNstGstCtls;
556 /** Whether the nested-guest VMCS has been copied to the shadow VMCS. */
557 bool fCopiedNstGstToShadowVmcs;
558 /** Whether flushing the TLB is required due to switching to/from the
559 * nested-guest. */
560 bool fSwitchedNstGstFlushTlb;
561 /** Alignment. */
562 bool afAlignment0[4];
563 /** Cached guest APIC-base MSR for identifying when to map the APIC-access page. */
564 uint64_t u64GstMsrApicBase;
565 /** @} */
566
567 /** @name Error reporting and diagnostics.
568 * @{ */
569 /** VT-x error-reporting (mainly for ring-3 propagation). */
570 struct
571 {
572 RTCPUID idCurrentCpu;
573 RTCPUID idEnteredCpu;
574 RTHCPHYS HCPhysCurrentVmcs;
575 uint32_t u32VmcsRev;
576 uint32_t u32InstrError;
577 uint32_t u32ExitReason;
578 uint32_t u32GuestIntrState;
579 } LastError;
580 /** @} */
581 } vmx;
582
583 /** Event injection state. */
584 HMEVENT Event;
585
586 /** Current shadow paging mode for updating CR4.
587 * @todo move later (@bugref{9217}). */
588 PGMMODE enmShadowMode;
589 uint32_t u32TemporaryPadding;
590
591 /** The PAE PDPEs used with Nested Paging (only valid when
592 * VMCPU_FF_HM_UPDATE_PAE_PDPES is set). */
593 X86PDPE aPdpes[4];
594 /** Pointer to the VMX statistics. */
595 PVMXSTATISTICS pVmxStats;
596# endif
597
598 /** @name Statistics
599 * @{ */
600 STAMCOUNTER StatExitAll;
601 STAMCOUNTER StatBreakOnCancel;
602 STAMCOUNTER StatBreakOnFFPre;
603 STAMCOUNTER StatBreakOnFFPost;
604 STAMCOUNTER StatBreakOnStatus;
605 STAMCOUNTER StatImportOnDemand;
606 STAMCOUNTER StatImportOnReturn;
607 STAMCOUNTER StatImportOnReturnSkipped;
608 STAMCOUNTER StatQueryCpuTick;
609#ifdef VBOX_WITH_STATISTICS
610 STAMPROFILEADV StatProfGstStateImport;
611 STAMPROFILEADV StatProfGstStateExport;
612#endif
613 /** @} */
614
615 /** @} */
616#endif /* RT_OS_DARWIN */
617} NEMCPU;
618/** Pointer to NEM VMCPU instance data. */
619typedef NEMCPU *PNEMCPU;
620
621/** NEMCPU::u32Magic value. */
622#define NEMCPU_MAGIC UINT32_C(0x4d454e20)
623/** NEMCPU::u32Magic value after termination. */
624#define NEMCPU_MAGIC_DEAD UINT32_C(0xdead2222)
625
626
627#ifdef IN_RING0
628# ifdef RT_OS_WINDOWS
629/**
630 * Windows: Hypercall input/ouput page info.
631 */
632typedef struct NEMR0HYPERCALLDATA
633{
634 /** Host physical address of the hypercall input/output page. */
635 RTHCPHYS HCPhysPage;
636 /** Pointer to the hypercall input/output page. */
637 uint8_t *pbPage;
638 /** Handle to the memory object of the hypercall input/output page. */
639 RTR0MEMOBJ hMemObj;
640} NEMR0HYPERCALLDATA;
641/** Pointer to a Windows hypercall input/output page info. */
642typedef NEMR0HYPERCALLDATA *PNEMR0HYPERCALLDATA;
643# endif /* RT_OS_WINDOWS */
644
645/**
646 * NEM GVMCPU instance data.
647 */
648typedef struct NEMR0PERVCPU
649{
650 uint32_t uDummy;
651} NEMR0PERVCPU;
652
653/**
654 * NEM GVM instance data.
655 */
656typedef struct NEMR0PERVM
657{
658 uint32_t uDummy;
659} NEMR0PERVM;
660
661#endif /* IN_RING*/
662
663
664#ifdef IN_RING3
665
666int nemR3DisableCpuIsaExt(PVM pVM, const char *pszIsaExt);
667
668int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced);
669int nemR3NativeInitAfterCPUM(PVM pVM);
670int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
671int nemR3NativeTerm(PVM pVM);
672void nemR3NativeReset(PVM pVM);
673void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi);
674VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu);
675bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu);
676bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
677
678/**
679 * Forced flag notification call from VMEmt.h.
680 *
681 * This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
682 *
683 * @param pVM The cross context VM structure.
684 * @param pVCpu The cross context virtual CPU structure of the CPU
685 * to be notified.
686 * @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
687 */
688void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags);
689
690/**
691 * Called by NEMR3NotifyDebugEventChanged() to let the native backend take the final decision
692 * on whether to switch to the debug loop.
693 *
694 * @returns Final flag whether to switch to the debug loop.
695 * @param pVM The VM cross context VM structure.
696 * @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChanged().
697 * @thread EMT(0)
698 */
699DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChanged(PVM pVM, bool fUseDebugLoop);
700
701
702/**
703 * Called by NEMR3NotifyDebugEventChangedPerCpu() to let the native backend take the final decision
704 * on whether to switch to the debug loop.
705 *
706 * @returns Final flag whether to switch to the debug loop.
707 * @param pVM The VM cross context VM structure.
708 * @param pVCpu The cross context virtual CPU structure of the calling EMT.
709 * @param fUseDebugLoop The current value determined by NEMR3NotifyDebugEventChangedPerCpu().
710 */
711DECLHIDDEN(bool) nemR3NativeNotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu, bool fUseDebugLoop);
712
713#endif /* IN_RING3 */
714
715void nemHCNativeNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb);
716void nemHCNativeNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
717 RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM);
718int nemHCNativeNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
719 PGMPAGETYPE enmType, uint8_t *pu2State);
720
721
722#ifdef RT_OS_WINDOWS
723/** Maximum number of pages we can map in a single NEMR0MapPages call. */
724# define NEM_MAX_MAP_PAGES ((HOST_PAGE_SIZE - RT_UOFFSETOF(HV_INPUT_MAP_GPA_PAGES, PageList)) / sizeof(HV_SPA_PAGE_NUMBER))
725/** Maximum number of pages we can unmap in a single NEMR0UnmapPages call. */
726# define NEM_MAX_UNMAP_PAGES 4095
727
728#endif
729/** @} */
730
731RT_C_DECLS_END
732
733#endif /* !VMM_INCLUDED_SRC_include_NEMInternal_h */
734
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