| 1 | /** @file
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| 2 | * TM - Time Manager.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006-2020 Oracle Corporation
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.alldomusa.eu.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License (GPL) as published by the Free Software
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| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * The contents of this file may alternatively be used under the terms
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| 17 | * of the Common Development and Distribution License Version 1.0
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| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 19 | * VirtualBox OSE distribution, in which case the provisions of the
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| 20 | * CDDL are applicable instead of those of the GPL.
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| 21 | *
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| 22 | * You may elect to license modified versions of this file under the
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| 23 | * terms and conditions of either the GPL or the CDDL or both.
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| 24 | */
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| 25 |
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| 26 | #ifndef VBOX_INCLUDED_vmm_tm_h
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| 27 | #define VBOX_INCLUDED_vmm_tm_h
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| 28 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 29 | # pragma once
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| 30 | #endif
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| 31 |
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| 32 | #include <VBox/types.h>
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| 33 | #ifdef IN_RING3
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| 34 | # include <iprt/time.h>
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| 35 | #endif
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| 36 |
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| 37 | RT_C_DECLS_BEGIN
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| 38 |
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| 39 | /** @defgroup grp_tm The Time Manager API
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| 40 | * @ingroup grp_vmm
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| 41 | * @{
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| 42 | */
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| 43 |
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| 44 | /** Enable a timer hack which improves the timer response/resolution a bit. */
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| 45 | #define VBOX_HIGH_RES_TIMERS_HACK
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| 46 |
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| 47 |
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| 48 | /**
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| 49 | * Clock type.
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| 50 | */
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| 51 | typedef enum TMCLOCK
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| 52 | {
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| 53 | /** Real host time.
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| 54 | * This clock ticks all the time, so use with care. */
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| 55 | TMCLOCK_REAL = 0,
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| 56 | /** Virtual guest time.
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| 57 | * This clock only ticks when the guest is running. It's implemented
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| 58 | * as an offset to monotonic real time (GIP). */
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| 59 | TMCLOCK_VIRTUAL,
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| 60 | /** Virtual guest synchronized timer time.
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| 61 | * This is a special clock and timer queue for synchronizing virtual timers
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| 62 | * and virtual time sources. This clock is trying to keep up with
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| 63 | * TMCLOCK_VIRTUAL, but will wait for timers to be executed. If it lags
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| 64 | * too far behind TMCLOCK_VIRTUAL, it will try speed up to close the
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| 65 | * distance.
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| 66 | * @remarks Do not use this unless you really *must*. */
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| 67 | TMCLOCK_VIRTUAL_SYNC,
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| 68 | /** Virtual CPU timestamp.
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| 69 | * By default this is a function of TMCLOCK_VIRTUAL_SYNC and the virtual
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| 70 | * CPU frequency. */
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| 71 | TMCLOCK_TSC,
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| 72 | /** Number of clocks. */
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| 73 | TMCLOCK_MAX
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| 74 | } TMCLOCK;
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| 75 |
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| 76 |
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| 77 | /** @defgroup grp_tm_timer_flags Timer flags.
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| 78 | * @{ */
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| 79 | /** Use the default critical section for the class of timers. */
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| 80 | #define TMTIMER_FLAGS_DEFAULT_CRIT_SECT 0
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| 81 | /** No critical section needed or a custom one is set using
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| 82 | * TMR3TimerSetCritSect(). */
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| 83 | #define TMTIMER_FLAGS_NO_CRIT_SECT RT_BIT_32(0)
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| 84 | /** @} */
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| 85 |
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| 86 |
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| 87 | VMMDECL(void) TMNotifyStartOfExecution(PVMCC pVM, PVMCPUCC pVCpu);
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| 88 | VMMDECL(void) TMNotifyEndOfExecution(PVMCC pVM, PVMCPUCC pVCpu);
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| 89 | VMM_INT_DECL(void) TMNotifyStartOfHalt(PVMCPUCC pVCpu);
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| 90 | VMM_INT_DECL(void) TMNotifyEndOfHalt(PVMCPUCC pVCpu);
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| 91 | #ifdef IN_RING3
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| 92 | VMMR3DECL(int) TMR3NotifySuspend(PVM pVM, PVMCPU pVCpu);
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| 93 | VMMR3DECL(int) TMR3NotifyResume(PVM pVM, PVMCPU pVCpu);
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| 94 | VMMR3DECL(int) TMR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent);
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| 95 | VMMR3DECL(uint32_t) TMR3GetWarpDrive(PUVM pUVM);
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| 96 | #endif
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| 97 | VMM_INT_DECL(uint32_t) TMCalcHostTimerFrequency(PVMCC pVM, PVMCPUCC pVCpu);
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| 98 | #ifdef IN_RING3
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| 99 | VMMR3DECL(int) TMR3GetCpuLoadTimes(PVM pVM, VMCPUID idCpu, uint64_t *pcNsTotal, uint64_t *pcNsExecuting,
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| 100 | uint64_t *pcNsHalted, uint64_t *pcNsOther);
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| 101 | #endif
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| 102 | VMMR3DECL(int) TMR3GetCpuLoadPercents(PUVM pVUM, VMCPUID idCpu, uint64_t *pcMsInterval, uint8_t *pcPctExecuting,
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| 103 | uint8_t *pcPctHalted, uint8_t *pcPctOther);
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| 104 |
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| 105 |
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| 106 | /** @name Real Clock Methods
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| 107 | * @{
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| 108 | */
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| 109 | VMM_INT_DECL(uint64_t) TMRealGet(PVM pVM);
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| 110 | VMM_INT_DECL(uint64_t) TMRealGetFreq(PVM pVM);
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| 111 | /** @} */
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| 112 |
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| 113 |
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| 114 | /** @name Virtual Clock Methods
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| 115 | * @{
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| 116 | */
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| 117 | VMM_INT_DECL(uint64_t) TMVirtualGet(PVMCC pVM);
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| 118 | VMM_INT_DECL(uint64_t) TMVirtualGetNoCheck(PVMCC pVM);
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| 119 | VMM_INT_DECL(uint64_t) TMVirtualSyncGetLag(PVMCC pVM);
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| 120 | VMM_INT_DECL(uint32_t) TMVirtualSyncGetCatchUpPct(PVMCC pVM);
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| 121 | VMM_INT_DECL(uint64_t) TMVirtualGetFreq(PVM pVM);
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| 122 | VMM_INT_DECL(uint64_t) TMVirtualSyncGet(PVMCC pVM);
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| 123 | VMM_INT_DECL(uint64_t) TMVirtualSyncGetNoCheck(PVMCC pVM);
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| 124 | VMM_INT_DECL(uint64_t) TMVirtualSyncGetNoCheckWithTsc(PVMCC pVM, uint64_t *puTscNow);
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| 125 | VMM_INT_DECL(uint64_t) TMVirtualSyncGetEx(PVMCC pVM, bool fCheckTimers);
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| 126 | VMM_INT_DECL(uint64_t) TMVirtualSyncGetWithDeadlineNoCheck(PVMCC pVM, uint64_t *pcNsToDeadline,
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| 127 | uint64_t *puDeadlineVersion, uint64_t *puTscNow);
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| 128 | VMMDECL(uint64_t) TMVirtualSyncGetNsToDeadline(PVMCC pVM, uint64_t *puDeadlineVersion, uint64_t *puTscNow);
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| 129 | VMM_INT_DECL(bool) TMVirtualSyncIsCurrentDeadlineVersion(PVMCC pVM, uint64_t uDeadlineVersion);
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| 130 | VMM_INT_DECL(uint64_t) TMVirtualToNano(PVM pVM, uint64_t u64VirtualTicks);
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| 131 | VMM_INT_DECL(uint64_t) TMVirtualToMicro(PVM pVM, uint64_t u64VirtualTicks);
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| 132 | VMM_INT_DECL(uint64_t) TMVirtualToMilli(PVM pVM, uint64_t u64VirtualTicks);
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| 133 | VMM_INT_DECL(uint64_t) TMVirtualFromNano(PVM pVM, uint64_t u64NanoTS);
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| 134 | VMM_INT_DECL(uint64_t) TMVirtualFromMicro(PVM pVM, uint64_t u64MicroTS);
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| 135 | VMM_INT_DECL(uint64_t) TMVirtualFromMilli(PVM pVM, uint64_t u64MilliTS);
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| 136 | VMM_INT_DECL(bool) TMVirtualIsTicking(PVM pVM);
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| 137 |
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| 138 | VMMR3DECL(uint64_t) TMR3TimeVirtGet(PUVM pUVM);
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| 139 | VMMR3DECL(uint64_t) TMR3TimeVirtGetMilli(PUVM pUVM);
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| 140 | VMMR3DECL(uint64_t) TMR3TimeVirtGetMicro(PUVM pUVM);
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| 141 | VMMR3DECL(uint64_t) TMR3TimeVirtGetNano(PUVM pUVM);
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| 142 | /** @} */
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| 143 |
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| 144 |
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| 145 | /** @name CPU Clock Methods
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| 146 | * @{
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| 147 | */
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| 148 | VMMDECL(uint64_t) TMCpuTickGet(PVMCPUCC pVCpu);
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| 149 | VMM_INT_DECL(uint64_t) TMCpuTickGetNoCheck(PVMCPUCC pVCpu);
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| 150 | VMM_INT_DECL(bool) TMCpuTickCanUseRealTSC(PVMCC pVM, PVMCPUCC pVCpu, uint64_t *poffRealTSC, bool *pfParavirtTsc);
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| 151 | VMM_INT_DECL(uint64_t) TMCpuTickGetDeadlineAndTscOffset(PVMCC pVM, PVMCPUCC pVCpu, uint64_t *poffRealTsc,
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| 152 | bool *pfOffsettedTsc, bool *pfParavirtTsc,
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| 153 | uint64_t *puTscNow, uint64_t *puDeadlineVersion);
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| 154 | VMM_INT_DECL(int) TMCpuTickSet(PVMCC pVM, PVMCPUCC pVCpu, uint64_t u64Tick);
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| 155 | VMM_INT_DECL(int) TMCpuTickSetLastSeen(PVMCPUCC pVCpu, uint64_t u64LastSeenTick);
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| 156 | VMM_INT_DECL(uint64_t) TMCpuTickGetLastSeen(PVMCPUCC pVCpu);
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| 157 | VMMDECL(uint64_t) TMCpuTicksPerSecond(PVMCC pVM);
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| 158 | VMM_INT_DECL(bool) TMCpuTickIsTicking(PVMCPUCC pVCpu);
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| 159 | /** @} */
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| 160 |
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| 161 |
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| 162 | /** @name Timer Methods
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| 163 | * @{
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| 164 | */
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| 165 | /**
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| 166 | * Device timer callback function.
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| 167 | *
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| 168 | * @param pDevIns Device instance of the device which registered the timer.
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| 169 | * @param pTimer The timer handle.
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| 170 | * @param pvUser User argument specified upon timer creation.
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| 171 | */
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| 172 | typedef DECLCALLBACKTYPE(void, FNTMTIMERDEV,(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser));
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| 173 | /** Pointer to a device timer callback function. */
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| 174 | typedef FNTMTIMERDEV *PFNTMTIMERDEV;
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| 175 |
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| 176 | /**
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| 177 | * USB device timer callback function.
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| 178 | *
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| 179 | * @param pUsbIns The USB device instance the timer is associated
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| 180 | * with.
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| 181 | * @param pTimer The timer handle.
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| 182 | * @param pvUser User argument specified upon timer creation.
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| 183 | */
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| 184 | typedef DECLCALLBACKTYPE(void, FNTMTIMERUSB,(PPDMUSBINS pUsbIns, PTMTIMER pTimer, void *pvUser));
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| 185 | /** Pointer to a timer callback for a USB device. */
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| 186 | typedef FNTMTIMERUSB *PFNTMTIMERUSB;
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| 187 |
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| 188 | /**
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| 189 | * Driver timer callback function.
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| 190 | *
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| 191 | * @param pDrvIns Device instance of the device which registered the timer.
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| 192 | * @param pTimer The timer handle.
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| 193 | * @param pvUser User argument specified upon timer creation.
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| 194 | */
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| 195 | typedef DECLCALLBACKTYPE(void, FNTMTIMERDRV,(PPDMDRVINS pDrvIns, PTMTIMER pTimer, void *pvUser));
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| 196 | /** Pointer to a driver timer callback function. */
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| 197 | typedef FNTMTIMERDRV *PFNTMTIMERDRV;
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| 198 |
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| 199 | /**
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| 200 | * Service timer callback function.
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| 201 | *
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| 202 | * @param pSrvIns Service instance of the device which registered the timer.
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| 203 | * @param pTimer The timer handle.
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| 204 | */
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| 205 | typedef DECLCALLBACKTYPE(void, FNTMTIMERSRV,(PPDMSRVINS pSrvIns, PTMTIMER pTimer));
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| 206 | /** Pointer to a service timer callback function. */
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| 207 | typedef FNTMTIMERSRV *PFNTMTIMERSRV;
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| 208 |
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| 209 | /**
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| 210 | * Internal timer callback function.
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| 211 | *
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| 212 | * @param pVM The cross context VM structure.
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| 213 | * @param pTimer The timer handle.
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| 214 | * @param pvUser User argument specified upon timer creation.
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| 215 | */
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| 216 | typedef DECLCALLBACKTYPE(void, FNTMTIMERINT,(PVM pVM, PTMTIMER pTimer, void *pvUser));
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| 217 | /** Pointer to internal timer callback function. */
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| 218 | typedef FNTMTIMERINT *PFNTMTIMERINT;
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| 219 |
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| 220 | /**
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| 221 | * External timer callback function.
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| 222 | *
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| 223 | * @param pvUser User argument as specified when the timer was created.
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| 224 | */
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| 225 | typedef DECLCALLBACKTYPE(void, FNTMTIMEREXT,(void *pvUser));
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| 226 | /** Pointer to an external timer callback function. */
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| 227 | typedef FNTMTIMEREXT *PFNTMTIMEREXT;
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| 228 |
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| 229 | VMMDECL(PTMTIMERR3) TMTimerR3Ptr(PTMTIMER pTimer);
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| 230 | VMMDECL(PTMTIMERR0) TMTimerR0Ptr(PTMTIMER pTimer);
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| 231 | VMMDECL(PTMTIMERRC) TMTimerRCPtr(PTMTIMER pTimer);
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| 232 | VMMDECL(int) TMTimerLock(PTMTIMER pTimer, int rcBusy);
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| 233 | VMMDECL(void) TMTimerUnlock(PTMTIMER pTimer);
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| 234 | VMMDECL(bool) TMTimerIsLockOwner(PTMTIMER pTimer);
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| 235 | VMMDECL(int) TMTimerSet(PTMTIMER pTimer, uint64_t u64Expire);
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| 236 | VMMDECL(int) TMTimerSetRelative(PTMTIMER pTimer, uint64_t cTicksToNext, uint64_t *pu64Now);
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| 237 | VMMDECL(int) TMTimerSetFrequencyHint(PTMTIMER pTimer, uint32_t uHz);
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| 238 | VMMDECL(uint64_t) TMTimerGet(PTMTIMER pTimer);
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| 239 | VMMDECL(int) TMTimerStop(PTMTIMER pTimer);
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| 240 | VMMDECL(bool) TMTimerIsActive(PTMTIMER pTimer);
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| 241 |
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| 242 | VMMDECL(int) TMTimerSetMillies(PTMTIMER pTimer, uint32_t cMilliesToNext);
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| 243 | VMMDECL(int) TMTimerSetMicro(PTMTIMER pTimer, uint64_t cMicrosToNext);
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| 244 | VMMDECL(int) TMTimerSetNano(PTMTIMER pTimer, uint64_t cNanosToNext);
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| 245 | VMMDECL(uint64_t) TMTimerGetNano(PTMTIMER pTimer);
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| 246 | VMMDECL(uint64_t) TMTimerGetMicro(PTMTIMER pTimer);
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| 247 | VMMDECL(uint64_t) TMTimerGetMilli(PTMTIMER pTimer);
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| 248 | VMMDECL(uint64_t) TMTimerGetFreq(PTMTIMER pTimer);
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| 249 | VMMDECL(uint64_t) TMTimerGetExpire(PTMTIMER pTimer);
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| 250 | VMMDECL(uint64_t) TMTimerToNano(PTMTIMER pTimer, uint64_t cTicks);
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| 251 | VMMDECL(uint64_t) TMTimerToMicro(PTMTIMER pTimer, uint64_t cTicks);
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| 252 | VMMDECL(uint64_t) TMTimerToMilli(PTMTIMER pTimer, uint64_t cTicks);
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| 253 | VMMDECL(uint64_t) TMTimerFromNano(PTMTIMER pTimer, uint64_t cNanoSecs);
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| 254 | VMMDECL(uint64_t) TMTimerFromMicro(PTMTIMER pTimer, uint64_t cMicroSecs);
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| 255 | VMMDECL(uint64_t) TMTimerFromMilli(PTMTIMER pTimer, uint64_t cMilliSecs);
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| 256 |
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| 257 | VMMDECL(bool) TMTimerPollBool(PVMCC pVM, PVMCPUCC pVCpu);
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| 258 | VMM_INT_DECL(void) TMTimerPollVoid(PVMCC pVM, PVMCPUCC pVCpu);
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| 259 | VMM_INT_DECL(uint64_t) TMTimerPollGIP(PVMCC pVM, PVMCPUCC pVCpu, uint64_t *pu64Delta);
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| 260 | /** @} */
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| 261 |
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| 262 |
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| 263 | #ifdef IN_RING3
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| 264 | /** @defgroup grp_tm_r3 The TM Host Context Ring-3 API
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| 265 | * @{
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| 266 | */
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| 267 | VMM_INT_DECL(int) TMR3Init(PVM pVM);
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| 268 | VMM_INT_DECL(int) TMR3InitFinalize(PVM pVM);
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| 269 | VMM_INT_DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
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| 270 | VMM_INT_DECL(int) TMR3Term(PVM pVM);
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| 271 | VMM_INT_DECL(void) TMR3Reset(PVM pVM);
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| 272 | VMM_INT_DECL(int) TMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue);
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| 273 | VMM_INT_DECL(int) TMR3TimerCreateDevice(PVM pVM, PPDMDEVINS pDevIns, TMCLOCK enmClock, PFNTMTIMERDEV pfnCallback, void *pvUser, uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 274 | VMM_INT_DECL(int) TMR3TimerCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, TMCLOCK enmClock, PFNTMTIMERUSB pfnCallback, void *pvUser, uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 275 | VMM_INT_DECL(int) TMR3TimerCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, void *pvUser, uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 276 | VMMR3DECL(int) TMR3TimerCreateInternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void *pvUser, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 277 | VMMR3DECL(PTMTIMERR3) TMR3TimerCreateExternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMEREXT pfnCallback, void *pvUser, const char *pszDesc);
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| 278 | VMMR3DECL(int) TMR3TimerDestroy(PTMTIMER pTimer);
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| 279 | VMM_INT_DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns);
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| 280 | VMM_INT_DECL(int) TMR3TimerDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns);
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| 281 | VMM_INT_DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns);
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| 282 | VMMR3DECL(int) TMR3TimerSave(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
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| 283 | VMMR3DECL(int) TMR3TimerLoad(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
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| 284 | VMMR3DECL(int) TMR3TimerSkip(PSSMHANDLE pSSM, bool *pfActive);
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| 285 | VMMR3DECL(int) TMR3TimerSetCritSect(PTMTIMERR3 pTimer, PPDMCRITSECT pCritSect);
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| 286 | VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM);
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| 287 | VMMR3_INT_DECL(void) TMR3VirtualSyncFF(PVM pVM, PVMCPU pVCpu);
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| 288 | VMMR3_INT_DECL(PRTTIMESPEC) TMR3UtcNow(PVM pVM, PRTTIMESPEC pTime);
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| 289 |
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| 290 | VMMR3_INT_DECL(int) TMR3CpuTickParavirtEnable(PVM pVM);
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| 291 | VMMR3_INT_DECL(int) TMR3CpuTickParavirtDisable(PVM pVM);
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| 292 | VMMR3_INT_DECL(bool) TMR3CpuTickIsFixedRateMonotonic(PVM pVM, bool fWithParavirtEnabled);
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| 293 | /** @} */
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| 294 | #endif /* IN_RING3 */
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| 295 |
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| 296 |
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| 297 | /** @} */
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| 298 |
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| 299 | RT_C_DECLS_END
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| 300 |
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| 301 | #endif /* !VBOX_INCLUDED_vmm_tm_h */
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| 302 |
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