| 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) 2006-2007 Sun Microsystems, Inc.
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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.virtualbox.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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 26 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 27 | * additional information or have any questions.
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| 28 | */
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| 29 |
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| 30 | #ifndef ___VBox_tm_h
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| 31 | #define ___VBox_tm_h
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| 32 |
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| 33 | #include <VBox/cdefs.h>
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| 34 | #include <VBox/types.h>
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| 35 | #ifdef IN_RING3
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| 36 | # include <iprt/time.h>
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| 37 | #endif
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| 38 |
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| 39 | __BEGIN_DECLS
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| 40 |
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| 41 | /** @defgroup grp_tm The Time Manager API
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| 42 | * @{
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| 43 | */
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| 44 |
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| 45 | /** Enable a timer hack which improves the timer response/resolution a bit. */
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| 46 | #define VBOX_HIGH_RES_TIMERS_HACK
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| 47 |
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| 48 |
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| 49 | /**
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| 50 | * Clock type.
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| 51 | */
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| 52 | typedef enum TMCLOCK
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| 53 | {
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| 54 | /** Real host time.
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| 55 | * This clock ticks all the time, so use with care. */
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| 56 | TMCLOCK_REAL = 0,
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| 57 | /** Virtual guest time.
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| 58 | * This clock only ticks when the guest is running. It's implemented
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| 59 | * as an offset to real time. */
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| 60 | TMCLOCK_VIRTUAL,
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| 61 | /** Virtual guest synchronized timer time.
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| 62 | * This is a special clock and timer queue for synchronizing virtual timers and
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| 63 | * virtual time sources. This clock is trying to keep up with TMCLOCK_VIRTUAL,
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| 64 | * but will wait for timers to be executed. If it lags too far behind TMCLOCK_VIRTUAL,
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| 65 | * it will try speed up to close the distance.
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| 66 | * @remarks Do not use this unless you *must*. */
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| 67 | TMCLOCK_VIRTUAL_SYNC,
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| 68 | /** Virtual CPU timestamp. (Running only when we're executing guest code.) */
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| 69 | TMCLOCK_TSC,
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| 70 | /** Number of clocks. */
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| 71 | TMCLOCK_MAX
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| 72 | } TMCLOCK;
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| 73 |
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| 74 |
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| 75 | VMMDECL(void) TMNotifyStartOfExecution(PVM pVM);
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| 76 | VMMDECL(void) TMNotifyEndOfExecution(PVM pVM);
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| 77 | VMMDECL(void) TMNotifyStartOfHalt(PVM pVM);
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| 78 | VMMDECL(void) TMNotifyEndOfHalt(PVM pVM);
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| 79 |
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| 80 |
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| 81 | /** @name Real Clock Methods
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| 82 | * @{
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| 83 | */
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| 84 | VMMDECL(uint64_t) TMRealGet(PVM pVM);
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| 85 | VMMDECL(uint64_t) TMRealGetFreq(PVM pVM);
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| 86 | /** @} */
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| 87 |
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| 88 |
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| 89 | /** @name Virtual Clock Methods
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| 90 | * @{
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| 91 | */
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| 92 | VMMDECL(uint64_t) TMVirtualGet(PVM pVM);
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| 93 | VMMDECL(uint64_t) TMVirtualGetEx(PVM pVM, bool fCheckTimers);
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| 94 | VMMDECL(uint64_t) TMVirtualSyncGetLag(PVM pVM);
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| 95 | VMMDECL(uint32_t) TMVirtualSyncGetCatchUpPct(PVM pVM);
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| 96 | VMMDECL(uint64_t) TMVirtualGetFreq(PVM pVM);
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| 97 | VMMDECL(uint64_t) TMVirtualSyncGetEx(PVM pVM, bool fCheckTimers);
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| 98 | VMMDECL(uint64_t) TMVirtualSyncGet(PVM pVM);
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| 99 | VMMDECL(int) TMVirtualResume(PVM pVM);
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| 100 | VMMDECL(int) TMVirtualPause(PVM pVM);
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| 101 | VMMDECL(uint64_t) TMVirtualToNano(PVM pVM, uint64_t u64VirtualTicks);
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| 102 | VMMDECL(uint64_t) TMVirtualToMicro(PVM pVM, uint64_t u64VirtualTicks);
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| 103 | VMMDECL(uint64_t) TMVirtualToMilli(PVM pVM, uint64_t u64VirtualTicks);
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| 104 | VMMDECL(uint64_t) TMVirtualFromNano(PVM pVM, uint64_t u64NanoTS);
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| 105 | VMMDECL(uint64_t) TMVirtualFromMicro(PVM pVM, uint64_t u64MicroTS);
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| 106 | VMMDECL(uint64_t) TMVirtualFromMilli(PVM pVM, uint64_t u64MilliTS);
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| 107 | VMMDECL(uint32_t) TMVirtualGetWarpDrive(PVM pVM);
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| 108 | VMMDECL(int) TMVirtualSetWarpDrive(PVM pVM, uint32_t u32Percent);
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| 109 | /** @} */
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| 110 |
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| 111 |
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| 112 | /** @name CPU Clock Methods
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| 113 | * @{
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| 114 | */
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| 115 | VMMDECL(int) TMCpuTickResume(PVM pVM);
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| 116 | VMMDECL(int) TMCpuTickPause(PVM pVM);
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| 117 | VMMDECL(uint64_t) TMCpuTickGet(PVM pVM);
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| 118 | VMMDECL(bool) TMCpuTickCanUseRealTSC(PVM pVM, uint64_t *poffRealTSC);
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| 119 | VMMDECL(int) TMCpuTickSet(PVM pVM, uint64_t u64Tick);
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| 120 | VMMDECL(uint64_t) TMCpuTicksPerSecond(PVM pVM);
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| 121 | /** @} */
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| 122 |
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| 123 |
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| 124 | /** @name Timer Methods
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| 125 | * @{
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| 126 | */
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| 127 | /**
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| 128 | * Device timer callback function.
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| 129 | *
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| 130 | * @param pDevIns Device instance of the device which registered the timer.
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| 131 | * @param pTimer The timer handle.
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| 132 | */
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| 133 | typedef DECLCALLBACK(void) FNTMTIMERDEV(PPDMDEVINS pDevIns, PTMTIMER pTimer);
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| 134 | /** Pointer to a device timer callback function. */
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| 135 | typedef FNTMTIMERDEV *PFNTMTIMERDEV;
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| 136 |
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| 137 | /**
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| 138 | * Driver timer callback function.
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| 139 | *
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| 140 | * @param pDrvIns Device instance of the device which registered the timer.
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| 141 | * @param pTimer The timer handle.
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| 142 | */
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| 143 | typedef DECLCALLBACK(void) FNTMTIMERDRV(PPDMDRVINS pDrvIns, PTMTIMER pTimer);
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| 144 | /** Pointer to a driver timer callback function. */
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| 145 | typedef FNTMTIMERDRV *PFNTMTIMERDRV;
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| 146 |
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| 147 | /**
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| 148 | * Service timer callback function.
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| 149 | *
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| 150 | * @param pSrvIns Service instance of the device which registered the timer.
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| 151 | * @param pTimer The timer handle.
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| 152 | */
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| 153 | typedef DECLCALLBACK(void) FNTMTIMERSRV(PPDMSRVINS pSrvIns, PTMTIMER pTimer);
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| 154 | /** Pointer to a service timer callback function. */
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| 155 | typedef FNTMTIMERSRV *PFNTMTIMERSRV;
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| 156 |
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| 157 | /**
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| 158 | * Internal timer callback function.
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| 159 | *
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| 160 | * @param pVM The VM.
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| 161 | * @param pTimer The timer handle.
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| 162 | * @param pvUser User argument specified upon timer creation.
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| 163 | */
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| 164 | typedef DECLCALLBACK(void) FNTMTIMERINT(PVM pVM, PTMTIMER pTimer, void *pvUser);
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| 165 | /** Pointer to internal timer callback function. */
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| 166 | typedef FNTMTIMERINT *PFNTMTIMERINT;
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| 167 |
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| 168 | /**
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| 169 | * External timer callback function.
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| 170 | *
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| 171 | * @param pvUser User argument as specified when the timer was created.
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| 172 | */
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| 173 | typedef DECLCALLBACK(void) FNTMTIMEREXT(void *pvUser);
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| 174 | /** Pointer to an external timer callback function. */
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| 175 | typedef FNTMTIMEREXT *PFNTMTIMEREXT;
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| 176 |
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| 177 | VMMDECL(PTMTIMERR3) TMTimerR3Ptr(PTMTIMER pTimer);
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| 178 | VMMDECL(PTMTIMERR0) TMTimerR0Ptr(PTMTIMER pTimer);
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| 179 | VMMDECL(PTMTIMERRC) TMTimerRCPtr(PTMTIMER pTimer);
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| 180 | VMMDECL(int) TMTimerDestroy(PTMTIMER pTimer);
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| 181 | VMMDECL(int) TMTimerSet(PTMTIMER pTimer, uint64_t u64Expire);
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| 182 | VMMDECL(int) TMTimerSetMillies(PTMTIMER pTimer, uint32_t cMilliesToNext);
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| 183 | VMMDECL(int) TMTimerSetMicro(PTMTIMER pTimer, uint64_t cMicrosToNext);
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| 184 | VMMDECL(int) TMTimerSetNano(PTMTIMER pTimer, uint64_t cNanosToNext);
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| 185 | VMMDECL(uint64_t) TMTimerGet(PTMTIMER pTimer);
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| 186 | VMMDECL(uint64_t) TMTimerGetNano(PTMTIMER pTimer);
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| 187 | VMMDECL(uint64_t) TMTimerGetMicro(PTMTIMER pTimer);
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| 188 | VMMDECL(uint64_t) TMTimerGetMilli(PTMTIMER pTimer);
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| 189 | VMMDECL(uint64_t) TMTimerGetFreq(PTMTIMER pTimer);
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| 190 | VMMDECL(uint64_t) TMTimerGetExpire(PTMTIMER pTimer);
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| 191 | VMMDECL(uint64_t) TMTimerToNano(PTMTIMER pTimer, uint64_t u64Ticks);
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| 192 | VMMDECL(uint64_t) TMTimerToMicro(PTMTIMER pTimer, uint64_t u64Ticks);
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| 193 | VMMDECL(uint64_t) TMTimerToMilli(PTMTIMER pTimer, uint64_t u64Ticks);
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| 194 | VMMDECL(uint64_t) TMTimerFromNano(PTMTIMER pTimer, uint64_t u64NanoTS);
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| 195 | VMMDECL(uint64_t) TMTimerFromMicro(PTMTIMER pTimer, uint64_t u64MicroTS);
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| 196 | VMMDECL(uint64_t) TMTimerFromMilli(PTMTIMER pTimer, uint64_t u64MilliTS);
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| 197 | VMMDECL(int) TMTimerStop(PTMTIMER pTimer);
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| 198 | VMMDECL(bool) TMTimerIsActive(PTMTIMER pTimer);
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| 199 | VMMDECL(uint64_t) TMTimerPoll(PVM pVM);
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| 200 | VMMDECL(uint64_t) TMTimerPollGIP(PVM pVM, uint64_t *pu64Delta);
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| 201 |
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| 202 | /** @} */
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| 203 |
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| 204 |
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| 205 | #ifdef IN_RING3
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| 206 | /** @defgroup grp_tm_r3 The TM Host Context Ring-3 API
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| 207 | * @ingroup grp_tm
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| 208 | * @{
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| 209 | */
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| 210 | VMMR3DECL(int) TMR3Init(PVM pVM);
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| 211 | VMMR3DECL(int) TMR3InitCPU(PVM pVM);
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| 212 | VMMR3DECL(int) TMR3InitFinalize(PVM pVM);
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| 213 | VMMR3DECL(void) TMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
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| 214 | VMMR3DECL(int) TMR3Term(PVM pVM);
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| 215 | VMMR3DECL(int) TMR3TermCPU(PVM pVM);
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| 216 | VMMR3DECL(void) TMR3Reset(PVM pVM);
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| 217 | VMMR3DECL(int) TMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue);
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| 218 | VMMR3DECL(int) TMR3TimerCreateDevice(PVM pVM, PPDMDEVINS pDevIns, TMCLOCK enmClock, PFNTMTIMERDEV pfnCallback, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 219 | VMMR3DECL(int) TMR3TimerCreateDriver(PVM pVM, PPDMDRVINS pDrvIns, TMCLOCK enmClock, PFNTMTIMERDRV pfnCallback, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 220 | VMMR3DECL(int) TMR3TimerCreateInternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMERINT pfnCallback, void *pvUser, const char *pszDesc, PPTMTIMERR3 ppTimer);
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| 221 | VMMR3DECL(PTMTIMERR3) TMR3TimerCreateExternal(PVM pVM, TMCLOCK enmClock, PFNTMTIMEREXT pfnCallback, void *pvUser, const char *pszDesc);
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| 222 | VMMR3DECL(int) TMR3TimerDestroyDevice(PVM pVM, PPDMDEVINS pDevIns);
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| 223 | VMMR3DECL(int) TMR3TimerDestroyDriver(PVM pVM, PPDMDRVINS pDrvIns);
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| 224 | VMMR3DECL(int) TMR3TimerSave(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
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| 225 | VMMR3DECL(int) TMR3TimerLoad(PTMTIMERR3 pTimer, PSSMHANDLE pSSM);
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| 226 | VMMR3DECL(void) TMR3TimerQueuesDo(PVM pVM);
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| 227 | VMMR3DECL(PRTTIMESPEC) TMR3UTCNow(PVM pVM, PRTTIMESPEC pTime);
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| 228 | /** @} */
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| 229 | #endif /* IN_RING3 */
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| 230 |
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| 231 |
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| 232 | /** @} */
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| 233 |
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| 234 | __END_DECLS
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| 235 |
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| 236 | #endif
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| 237 |
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