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/** @file
* TM - Time Manager.
*/
/*
* Copyright (C) 2006-2013 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
#ifndef ___VBox_vmm_tm_h
#define ___VBox_vmm_tm_h
#include <VBox/types.h>
#ifdef IN_RING3
# include <iprt/time.h>
#endif
RT_C_DECLS_BEGIN
/** @defgroup grp_tm The Time Manager API
* @{
*/
/** Enable a timer hack which improves the timer response/resolution a bit. */
#define VBOX_HIGH_RES_TIMERS_HACK
/**
* Clock type.
*/
typedef enum TMCLOCK
{
/** Real host time.
* This clock ticks all the time, so use with care. */
TMCLOCK_REAL = 0,
/** Virtual guest time.
* This clock only ticks when the guest is running. It's implemented
* as an offset to monotonic real time (GIP). */
TMCLOCK_VIRTUAL,
/** Virtual guest synchronized timer time.
* This is a special clock and timer queue for synchronizing virtual timers
* and virtual time sources. This clock is trying to keep up with
* TMCLOCK_VIRTUAL, but will wait for timers to be executed. If it lags
* too far behind TMCLOCK_VIRTUAL, it will try speed up to close the
* distance.
* @remarks Do not use this unless you really *must*. */
TMCLOCK_VIRTUAL_SYNC,
/** Virtual CPU timestamp.
* By default this is a function of TMCLOCK_VIRTUAL_SYNC and the virtual
* CPU frequency. */
TMCLOCK_TSC,
/** Number of clocks. */
TMCLOCK_MAX
} TMCLOCK;
/** @defgroup grp_tm_timer_flags Timer flags.
* @{ */
/** Use the default critical section for the class of timers. */
#define TMTIMER_FLAGS_DEFAULT_CRIT_SECT 0
/** No critical section needed or a custom one is set using
* TMR3TimerSetCritSect(). */
#define TMTIMER_FLAGS_NO_CRIT_SECT RT_BIT_32(0)
/** @} */
VMMDECL(void) TMNotifyStartOfExecution(PVMCPU pVCpu);
VMMDECL(void) TMNotifyEndOfExecution(PVMCPU pVCpu);
VMM_INT_DECL(void) TMNotifyStartOfHalt(PVMCPU pVCpu);
VMM_INT_DECL(void) TMNotifyEndOfHalt(PVMCPU pVCpu);
#ifdef IN_RING3
VMMR3DECL(int) TMR3NotifySuspend(PVM pVM, PVMCPU pVCpu);
VMMR3DECL(int) TMR3NotifyResume(PVM pVM, PVMCPU pVCpu);
VMMR3DECL(int) TMR3SetWarpDrive(PUVM pUVM, uint32_t u32Percent);
VMMR3DECL(uint32_t) TMR3GetWarpDrive(PUVM pUVM);
#endif
VMM_INT_DECL(uint32_t) TMCalcHostTimerFrequency(PVM pVM, PVMCPU pVCpu);
#ifdef IN_RING3
VMMR3DECL(int) TMR3GetCpuLoadTimes(PVM pVM, VMCPUID idCpu, uint64_t *pcNsTotal, uint64_t *pcNsExecuting,
uint64_t *pcNsHalted, uint64_t *pcNsOther);
#endif
/** @name Real Clock Methods
* @{
*/
VMM_INT_DECL(uint64_t) TMRealGet(PVM pVM);
VMM_INT_DECL(uint64_t) TMRealGetFreq(PVM pVM);
/** @} */
/** @name Virtual Clock Methods
* @{
*/
VMM_INT_DECL(uint64_t) TMVirtualGet(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualGetNoCheck(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualSyncGetLag(PVM pVM);
VMM_INT_DECL(uint32_t) TMVirtualSyncGetCatchUpPct(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualGetFreq(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualSyncGet(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualSyncGetNoCheck(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualSyncGetEx(PVM pVM, bool fCheckTimers);
VMM_INT_DECL(uint64_t) TMVirtualSyncGetWithDeadlineNoCheck(PVM pVM, uint64_t *pcNsToDeadline);
VMM_INT_DECL(uint64_t) TMVirtualSyncGetNsToDeadline(PVM pVM);
VMM_INT_DECL(uint64_t) TMVirtualToNano(PVM pVM, uint64_t u64VirtualTicks);
VMM_INT_DECL(uint64_t) TMVirtualToMicro(PVM pVM, uint64_t u64VirtualTicks);
VMM_INT_DECL(uint64_t) TMVirtualToMilli(PVM pVM, uint64_t u64VirtualTicks);
VMM_INT_DECL(uint64_t) TMVirtualFromNano(PVM pVM, uint64_t u64NanoTS);
VMM_INT_DECL(uint64_t) TMVirtualFromMicro(PVM pVM, uint64_t u64MicroTS);
VMM_INT_DECL(uint64_t) TMVirtualFromMilli(PVM pVM, uint64_t u64MilliTS);
/** @} */
/** @name CPU Clock Methods
* @{
*/
VMMDECL(uint64_t) TMCpuTickGet(PVMCPU pVCpu);
VMM_INT_DECL(uint64_t) TMCpuTickGetNoCheck(PVMCPU pVCpu);
VMM_INT_DECL(bool) TMCpuTickCanUseRealTSC(PVMCPU pVCpu, uint64_t *poffRealTSC);
VMM_INT_DECL(uint64_t) TMCpuTickGetDeadlineAndTscOffset(PVMCPU pVCpu, bool *pfOffsettedTsc, uint64_t *poffRealTSC);
VMM_INT_DECL(int) TMCpuTickSet(PVM pVM, PVMCPU pVCpu, uint64_t u64Tick);
VMM_INT_DECL(int) TMCpuTickSetLastSeen(PVMCPU pVCpu, uint64_t u64LastSeenTick);
VMM_INT_DECL(uint64_t) TMCpuTickGetLastSeen(PVMCPU pVCpu);
VMMDECL(uint64_t) TMCpuTicksPerSecond(PVM pVM);
/** @} */
/** @name Timer Methods
* @{
*/
/**
* Device timer callback function.
*
* @param pDevIns Device instance of the device which registered the timer.
* @param pTimer The timer handle.
* @param pvUser User argument specified upon timer creation.
*/
typedef DECLCALLBACK(void) FNTMTIMERDEV(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser);
/** Pointer to a device timer callback function. */
typedef FNTMTIMERDEV *PFNTMTIMERDEV;
/**
* USB device timer callback function.
*
* @param pUsbIns The USB device instance the timer is associated
* with.
* @param pTimer The timer handle.
* @param pvUser User argument specified upon timer creation.
*/
typedef DECLCALLBACK(void) FNTMTIMERUSB(PPDMUSBINS pUsbIns, PTMTIMER pTimer, void *pvUser);
/** Pointer to a timer callback for a USB device. */
typedef FNTMTIMERUSB *PFNTMTIMERUSB;
/**
* Driver timer callback function.
*
* @param pDrvIns Device instance of the device which registered the timer.
* @param pTimer The timer handle.
* @param pvUser User argument specified upon timer creation.
*/
typedef DECLCALLBACK(void) FNTMTIMERDRV(PPDMDRVINS pDrvIns, PTMTIMER pTimer, void *pvUser);
/** Pointer to a driver timer callback function. */
typedef FNTMTIMERDRV *PFNTMTIMERDRV;
/**
* Service timer callback function.
*
* @param pSrvIns Service instance of the device which registered the timer.
* @param pTimer The timer handle.
*/
typedef DECLCALLBACK(void) FNTMTIMERSRV(PPDMSRVINS pSrvIns, PTMTIMER pTimer);
/** Pointer to a service timer callback function. */
typedef FNTMTIMERSRV *PFNTMTIMERSRV;
/**
* Internal timer callback function.
*
* @param pVM The VM.
* @param pTimer The timer handle.
* @param pvUser User argument specified upon timer creation.
*/
typedef DECLCALLBACK(void) FNTMTIMERINT(PVM pVM, PTMTIMER pTimer, void *pvUser);
/** Pointer to internal timer callback function. */
typedef FNTMTIMERINT *PFNTMTIMERINT;
/**
* External timer callback function.
*
* @param pvUser User argument as specified when the timer was created.
*/
typedef DECLCALLBACK(void) FNTMTIMEREXT(void *pvUser);
/** Pointer to an external timer callback function. */
typedef FNTMTIMEREXT *PFNTMTIMEREXT;
VMMDECL(PTMTIMERR3) TMTimerR3Ptr(PTMTIMER pTimer);
VMMDECL(PTMTIMERR0) TMTimerR0Ptr(PTMTIMER pTimer);
VMMDECL(PTMTIMERRC) TMTimerRCPtr(PTMTIMER pTimer);
VMMDECL(int) TMTimerLock(PTMTIMER pTimer, int rcBusy);
VMMDECL(void) TMTimerUnlock(PTMTIMER pTimer);
VMMDECL(bool) TMTimerIsLockOwner(PTMTIMER pTimer);
VMMDECL(int) TMTimerSet(PTMTIMER pTimer, uint64_t u64Expire);
VMMDECL(int) TMTimerSetRelative(PTMTIMER pTimer, uint64_t cTicksToNext, uint64_t *pu64Now);
VMMDECL(int) TMTimerSetFrequencyHint(PTMTIMER pTimer, uint32_t uHz);
VMMDECL(uint64_t) TMTimerGet(PTMTIMER pTimer);
VMMDECL(int) TMTimerStop(PTMTIMER pTimer);
VMMDECL(bool) TMTimerIsActive(PTMTIMER pTimer);
VMMDECL(int) TMTimerSetMillies(PTMTIMER pTimer, uint32_t cMilliesToNext);
VMMDECL(int) TMTimerSetMicro(PTMTIMER pTimer, uint64_t cMicrosToNext);
VMMDECL(int) TMTimerSetNano(PTMTIMER pTimer, uint64_t cNanosToNext);
VMMDECL(uint64_t) TMTimerGetNano(PTMTIMER pTimer);
VMMDECL(uint64_t) TMTimerGetMicro(PTMTIMER pTimer);
VMMDECL(uint64_t) TMTimerGetMilli(PTMTIMER pTimer);
VMMDECL(uint64_t) TMTimerGetFreq(PTMTIMER pTimer);
VMMDECL(uint64_t) TMTimerGetExpire(PTMTIMER pTimer);
VMMDECL(uint64_t) TMTimerToNano(PTMTIMER pTimer, uint64_t cTicks);
VMMDECL(uint64_t) TMTimerToMicro(PTMTIMER pTimer, uint64_t cTicks);
VMMDECL(uint64_t) TMTimerToMilli(PTMTIMER pTimer, uint64_t cTicks);
VMMDECL(uint64_t) TMTimerFromNano(PTMTIMER pTimer, uint64_t cNanoSecs);
VMMDECL(uint64_t) TMTimerFromMicro(PTMTIMER pTimer, uint64_t cMicroSecs);
VMMDECL(uint64_t) TMTimerFromMilli(PTMTIMER pTimer, uint64_t cMilliSecs);
VMMDECL(bool) TMTimerPollBool(PVM pVM, PVMCPU pVCpu);
VMM_INT_DECL(void) TMTimerPollVoid(PVM pVM, PVMCPU pVCpu);
VMM_INT_DECL(uint64_t) TMTimerPollGIP(PVM pVM, PVMCPU pVCpu, uint64_t *pu64Delta);
/** @} */
#ifdef IN_RING3
/** @defgroup grp_tm_r3 The TM Host Context Ring-3 API
* @ingroup grp_tm
* @{
*/
VMM_INT_DECL(int) TMR3Init(PVM pVM);
VMM_INT_DECL(int) TMR3InitFinalize(PVM pVM);
VMM_INT_DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
VMM_INT_DECL(int) TMR3Term(PVM pVM);
VMM_INT_DECL(void) TMR3Reset(PVM pVM);
VMM_INT_DECL(int) TMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue);
VMM_INT_DECL(int) TMR3TimerCreateDevice(PVM pVM, PPDMDEVINS pDevIns, TMCLOCK enmClock, PFNTMTIMERDEV pfnCallback, void *pvUser, uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer);
VMM_INT_DECL(int) TMR3TimerCreateUsb(PVM pVM, PPDMUSBINS pUsbIns, TMCLOCK enmClock, PFNTMTIMERUSB pfnCallback, void *pvUser, uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer);
VMM_INT_DECL(int) TMR3TimerCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, void *pvUser, uint32_t fFlags, const char *pszDesc, PPTMTIMERR3 ppTimer);
VMMR3DECL(int) TMR3TimerCreateInternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void *pvUser, const char *pszDesc, PPTMTIMERR3 ppTimer);
VMMR3DECL(PTMTIMERR3) TMR3TimerCreateExternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMEREXT pfnCallback, void *pvUser, const char *pszDesc);
VMMR3DECL(int) TMR3TimerDestroy(PTMTIMER pTimer);
VMM_INT_DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns);
VMM_INT_DECL(int) TMR3TimerDestroyUsb(PVM pVM, PPDMUSBINS pUsbIns);
VMM_INT_DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns);
VMMR3DECL(int) TMR3TimerSave(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
VMMR3DECL(int) TMR3TimerLoad(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
VMMR3DECL(int) TMR3TimerSetCritSect(PTMTIMERR3 pTimer, PPDMCRITSECT pCritSect);
VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM);
VMMR3_INT_DECL(void) TMR3VirtualSyncFF(PVM pVM, PVMCPU pVCpu);
VMMR3_INT_DECL(PRTTIMESPEC) TMR3UtcNow(PVM pVM, PRTTIMESPEC pTime);
/** @} */
#endif /* IN_RING3 */
/** @} */
RT_C_DECLS_END
#endif
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