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* TM - Time Manager. (VMM)
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* Copyright (C) 2006-2010 Oracle Corporation
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* This file is part of VirtualBox Open Source Edition (OSE), as
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* available from http://www.virtualbox.org. This file is free software;
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* you can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) as published by the Free Software
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* Foundation, in version 2 as it comes in the "COPYING" file of the
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* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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* The contents of this file may alternatively be used under the terms
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* of the Common Development and Distribution License Version 1.0
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* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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* VirtualBox OSE distribution, in which case the provisions of the
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* CDDL are applicable instead of those of the GPL.
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* You may elect to license modified versions of this file under the
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* terms and conditions of either the GPL or the CDDL or both.
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#include <VBox/cdefs.h>
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#include <VBox/types.h>
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# include <iprt/time.h>
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/** @defgroup grp_tm The Time Manager API
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/** Enable a timer hack which improves the timer response/resolution a bit. */
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#define VBOX_HIGH_RES_TIMERS_HACK
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* This clock ticks all the time, so use with care. */
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/** Virtual guest time.
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* This clock only ticks when the guest is running. It's implemented
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* as an offset to monotonic real time (GIP). */
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/** Virtual guest synchronized timer time.
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* This is a special clock and timer queue for synchronizing virtual timers
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* and virtual time sources. This clock is trying to keep up with
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* TMCLOCK_VIRTUAL, but will wait for timers to be executed. If it lags
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* too far behind TMCLOCK_VIRTUAL, it will try speed up to close the
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* @remarks Do not use this unless you really *must*. */
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/** Virtual CPU timestamp.
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* By default this is a function of TMCLOCK_VIRTUAL_SYNC and the virtual
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/** Number of clocks. */
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/** @defgroup grp_tm_timer_flags Timer flags.
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/** Use the default critical section for the class of timers. */
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#define TMTIMER_FLAGS_DEFAULT_CRIT_SECT 0
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/** No critical section needed or a custom one is set using
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* TMR3TimerSetCritSect(). */
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#define TMTIMER_FLAGS_NO_CRIT_SECT RT_BIT_32(0)
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VMMDECL(void) TMNotifyStartOfExecution(PVMCPU pVCpu);
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VMMDECL(void) TMNotifyEndOfExecution(PVMCPU pVCpu);
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VMM_INT_DECL(void) TMNotifyStartOfHalt(PVMCPU pVCpu);
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VMM_INT_DECL(void) TMNotifyEndOfHalt(PVMCPU pVCpu);
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VMMR3DECL(int) TMR3NotifySuspend(PVM pVM, PVMCPU pVCpu);
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VMMR3DECL(int) TMR3NotifyResume(PVM pVM, PVMCPU pVCpu);
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VMMR3DECL(int) TMR3SetWarpDrive(PVM pVM, uint32_t u32Percent);
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VMMDECL(uint32_t) TMGetWarpDrive(PVM pVM);
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/** @name Real Clock Methods
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VMM_INT_DECL(uint64_t) TMRealGet(PVM pVM);
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VMM_INT_DECL(uint64_t) TMRealGetFreq(PVM pVM);
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/** @name Virtual Clock Methods
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VMM_INT_DECL(uint64_t) TMVirtualGet(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualGetNoCheck(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualSyncGetLag(PVM pVM);
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VMM_INT_DECL(uint32_t) TMVirtualSyncGetCatchUpPct(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualGetFreq(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualSyncGet(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualSyncGetNoCheck(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualSyncGetEx(PVM pVM, bool fCheckTimers);
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VMM_INT_DECL(uint64_t) TMVirtualSyncGetWithDeadlineNoCheck(PVM pVM, uint64_t *pcNsToDeadline);
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VMM_INT_DECL(uint64_t) TMVirtualSyncGetNsToDeadline(PVM pVM);
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VMM_INT_DECL(uint64_t) TMVirtualToNano(PVM pVM, uint64_t u64VirtualTicks);
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VMM_INT_DECL(uint64_t) TMVirtualToMicro(PVM pVM, uint64_t u64VirtualTicks);
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VMM_INT_DECL(uint64_t) TMVirtualToMilli(PVM pVM, uint64_t u64VirtualTicks);
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VMM_INT_DECL(uint64_t) TMVirtualFromNano(PVM pVM, uint64_t u64NanoTS);
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VMM_INT_DECL(uint64_t) TMVirtualFromMicro(PVM pVM, uint64_t u64MicroTS);
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VMM_INT_DECL(uint64_t) TMVirtualFromMilli(PVM pVM, uint64_t u64MilliTS);
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/** @name CPU Clock Methods
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VMMDECL(uint64_t) TMCpuTickGet(PVMCPU pVCpu);
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VMM_INT_DECL(uint64_t) TMCpuTickGetNoCheck(PVMCPU pVCpu);
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VMM_INT_DECL(bool) TMCpuTickCanUseRealTSC(PVMCPU pVCpu, uint64_t *poffRealTSC);
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VMM_INT_DECL(uint64_t) TMCpuTickGetDeadlineAndTscOffset(PVMCPU pVCpu, bool *pfOffsettedTsc, uint64_t *poffRealTSC);
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VMM_INT_DECL(int) TMCpuTickSet(PVM pVM, PVMCPU pVCpu, uint64_t u64Tick);
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VMM_INT_DECL(int) TMCpuTickSetLastSeen(PVMCPU pVCpu, uint64_t u64LastSeenTick);
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VMM_INT_DECL(uint64_t) TMCpuTickGetLastSeen(PVMCPU pVCpu);
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VMMDECL(uint64_t) TMCpuTicksPerSecond(PVM pVM);
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/** @name Timer Methods
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* Device timer callback function.
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* @param pDevIns Device instance of the device which registered the timer.
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* @param pTimer The timer handle.
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* @param pvUser User argument specified upon timer creation.
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typedef DECLCALLBACK(void) FNTMTIMERDEV(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser);
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/** Pointer to a device timer callback function. */
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typedef FNTMTIMERDEV *PFNTMTIMERDEV;
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* Device timer callback function.
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* @param pUsbIns The USB device instance the timer is associated
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* @param pTimer The timer handle.
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* @param pvUser User argument specified upon timer creation.
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typedef DECLCALLBACK(void) FNTMTIMERUSB(PPDMUSBINS pUsbIns, PTMTIMER pTimer, void *pvUser);
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/** Pointer to a timer callback for a USB device. */
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typedef FNTMTIMERUSB *PFNTMTIMERUSB;
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* Driver timer callback function.
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* @param pDrvIns Device instance of the device which registered the timer.
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* @param pTimer The timer handle.
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* @param pvUser User argument specified upon timer creation.
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typedef DECLCALLBACK(void) FNTMTIMERDRV(PPDMDRVINS pDrvIns, PTMTIMER pTimer, void *pvUser);
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/** Pointer to a driver timer callback function. */
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typedef FNTMTIMERDRV *PFNTMTIMERDRV;
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* Service timer callback function.
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* @param pSrvIns Service instance of the device which registered the timer.
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* @param pTimer The timer handle.
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typedef DECLCALLBACK(void) FNTMTIMERSRV(PPDMSRVINS pSrvIns, PTMTIMER pTimer);
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/** Pointer to a service timer callback function. */
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typedef FNTMTIMERSRV *PFNTMTIMERSRV;
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* Internal timer callback function.
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* @param pTimer The timer handle.
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* @param pvUser User argument specified upon timer creation.
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typedef DECLCALLBACK(void) FNTMTIMERINT(PVM pVM, PTMTIMER pTimer, void *pvUser);
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/** Pointer to internal timer callback function. */
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typedef FNTMTIMERINT *PFNTMTIMERINT;
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* External timer callback function.
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* @param pvUser User argument as specified when the timer was created.
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typedef DECLCALLBACK(void) FNTMTIMEREXT(void *pvUser);
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/** Pointer to an external timer callback function. */
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typedef FNTMTIMEREXT *PFNTMTIMEREXT;
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VMMDECL(PTMTIMERR3) TMTimerR3Ptr(PTMTIMER pTimer);
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VMMDECL(PTMTIMERR0) TMTimerR0Ptr(PTMTIMER pTimer);
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VMMDECL(PTMTIMERRC) TMTimerRCPtr(PTMTIMER pTimer);
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VMMDECL(int) TMTimerSet(PTMTIMER pTimer, uint64_t u64Expire);
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VMMDECL(int) TMTimerSetRelative(PTMTIMER pTimer, uint64_t cTicksToNext, uint64_t *pu64Now);
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VMMDECL(int) TMTimerSetMillies(PTMTIMER pTimer, uint32_t cMilliesToNext);
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VMMDECL(int) TMTimerSetMicro(PTMTIMER pTimer, uint64_t cMicrosToNext);
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VMMDECL(int) TMTimerSetNano(PTMTIMER pTimer, uint64_t cNanosToNext);
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VMMDECL(uint64_t) TMTimerGet(PTMTIMER pTimer);
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VMMDECL(uint64_t) TMTimerGetNano(PTMTIMER pTimer);
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VMMDECL(uint64_t) TMTimerGetMicro(PTMTIMER pTimer);
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VMMDECL(uint64_t) TMTimerGetMilli(PTMTIMER pTimer);
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VMMDECL(uint64_t) TMTimerGetFreq(PTMTIMER pTimer);
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VMMDECL(uint64_t) TMTimerGetExpire(PTMTIMER pTimer);
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VMMDECL(uint64_t) TMTimerToNano(PTMTIMER pTimer, uint64_t u64Ticks);
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VMMDECL(uint64_t) TMTimerToMicro(PTMTIMER pTimer, uint64_t u64Ticks);
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VMMDECL(uint64_t) TMTimerToMilli(PTMTIMER pTimer, uint64_t u64Ticks);
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VMMDECL(uint64_t) TMTimerFromNano(PTMTIMER pTimer, uint64_t u64NanoTS);
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VMMDECL(uint64_t) TMTimerFromMicro(PTMTIMER pTimer, uint64_t u64MicroTS);
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VMMDECL(uint64_t) TMTimerFromMilli(PTMTIMER pTimer, uint64_t u64MilliTS);
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VMMDECL(int) TMTimerStop(PTMTIMER pTimer);
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VMMDECL(bool) TMTimerIsActive(PTMTIMER pTimer);
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VMMDECL(bool) TMTimerPollBool(PVM pVM, PVMCPU pVCpu);
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VMM_INT_DECL(void) TMTimerPollVoid(PVM pVM, PVMCPU pVCpu);
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VMM_INT_DECL(uint64_t) TMTimerPollGIP(PVM pVM, PVMCPU pVCpu, uint64_t *pu64Delta);
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/** @defgroup grp_tm_r3 The TM Host Context Ring-3 API
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VMM_INT_DECL(int) TMR3Init(PVM pVM);
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VMM_INT_DECL(int) TMR3InitCPU(PVM pVM);
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VMM_INT_DECL(int) TMR3InitFinalize(PVM pVM);
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VMM_INT_DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
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VMM_INT_DECL(int) TMR3Term(PVM pVM);
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VMM_INT_DECL(int) TMR3TermCPU(PVM pVM);
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VMM_INT_DECL(void) TMR3Reset(PVM pVM);
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VMM_INT_DECL(int) TMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue);
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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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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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VMMR3DECL(int) TMR3TimerCreateInternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void *pvUser, const char *pszDesc, PPTMTIMERR3 ppTimer);
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VMMR3DECL(PTMTIMERR3) TMR3TimerCreateExternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMEREXT pfnCallback, void *pvUser, const char *pszDesc);
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VMMR3DECL(int) TMR3TimerDestroy(PTMTIMER pTimer);
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VMM_INT_DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns);
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VMM_INT_DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns);
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VMMR3DECL(int) TMR3TimerSave(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
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VMMR3DECL(int) TMR3TimerLoad(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
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VMMR3DECL(int) TMR3TimerSetCritSect(PTMTIMERR3 pTimer, PPDMCRITSECT pCritSect);
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VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM);
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VMM_INT_DECL(void) TMR3VirtualSyncFF(PVM pVM, PVMCPU pVCpu);
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VMM_INT_DECL(PRTTIMESPEC) TMR3UtcNow(PVM pVM, PRTTIMESPEC pTime);
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#endif /* IN_RING3 */