| 1 | /* $Id: gvmm.h 21217 2009-07-04 14:26:39Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GVMM - The Global VM Manager. (VMM)
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | *
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| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 28 | * additional information or have any questions.
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| 29 | */
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| 30 |
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| 31 | #ifndef ___VBox_gvmm_h
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| 32 | #define ___VBox_gvmm_h
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| 33 |
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| 34 | #include <VBox/cdefs.h>
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| 35 | #include <VBox/types.h>
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| 36 | #include <VBox/sup.h>
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| 37 |
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| 38 | RT_C_DECLS_BEGIN
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| 39 |
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| 40 | /** @defgroup grp_GVMM GVMM - The Global VM Manager.
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| 41 | * @{
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| 42 | */
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| 43 |
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| 44 | /** @def IN_GVMM_R0
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| 45 | * Used to indicate whether we're inside the same link module as the ring 0
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| 46 | * part of the Global VM Manager or not.
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| 47 | */
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| 48 | #ifdef DOXYGEN_RUNNING
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| 49 | # define IN_GVMM_R0
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| 50 | #endif
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| 51 | /** @def GVMMR0DECL
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| 52 | * Ring 0 VM export or import declaration.
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| 53 | * @param type The return type of the function declaration.
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| 54 | */
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| 55 | #ifdef IN_GVMM_R0
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| 56 | # define GVMMR0DECL(type) DECLEXPORT(type) VBOXCALL
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| 57 | #else
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| 58 | # define GVMMR0DECL(type) DECLIMPORT(type) VBOXCALL
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| 59 | #endif
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| 60 |
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| 61 | /** @def NIL_GVM_HANDLE
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| 62 | * The nil GVM VM handle value (VM::hSelf).
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| 63 | */
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| 64 | #define NIL_GVM_HANDLE 0
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| 65 |
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| 66 |
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| 67 | /**
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| 68 | * The scheduler statistics
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| 69 | */
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| 70 | typedef struct GVMMSTATSSCHED
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| 71 | {
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| 72 | /** The number of calls to GVMMR0SchedHalt. */
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| 73 | uint64_t cHaltCalls;
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| 74 | /** The number of times we did go to sleep in GVMMR0SchedHalt. */
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| 75 | uint64_t cHaltBlocking;
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| 76 | /** The number of times we timed out in GVMMR0SchedHalt. */
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| 77 | uint64_t cHaltTimeouts;
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| 78 | /** The number of times we didn't go to sleep in GVMMR0SchedHalt. */
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| 79 | uint64_t cHaltNotBlocking;
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| 80 | /** The number of wake ups done during GVMMR0SchedHalt. */
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| 81 | uint64_t cHaltWakeUps;
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| 82 |
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| 83 | /** The number of calls to GVMMR0WakeUp. */
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| 84 | uint64_t cWakeUpCalls;
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| 85 | /** The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp
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| 86 | * was called. */
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| 87 | uint64_t cWakeUpNotHalted;
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| 88 | /** The number of wake ups done during GVMMR0WakeUp (not counting the explicit
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| 89 | * one). */
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| 90 | uint64_t cWakeUpWakeUps;
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| 91 |
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| 92 | /** The number of calls to GVMMR0Poke. */
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| 93 | uint64_t cPokeCalls;
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| 94 | /** The number of times the EMT thread wasn't actually busy when
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| 95 | * GVMMR0Poke was called. */
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| 96 | uint64_t cPokeNotBusy;
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| 97 |
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| 98 | /** The number of calls to GVMMR0SchedPoll. */
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| 99 | uint64_t cPollCalls;
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| 100 | /** The number of times the EMT has halted in a GVMMR0SchedPoll call. */
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| 101 | uint64_t cPollHalts;
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| 102 | /** The number of wake ups done during GVMMR0SchedPoll. */
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| 103 | uint64_t cPollWakeUps;
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| 104 |
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| 105 | uint64_t u64Alignment; /**< padding */
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| 106 | } GVMMSTATSSCHED;
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| 107 | /** Pointer to the GVMM scheduler statistics. */
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| 108 | typedef GVMMSTATSSCHED *PGVMMSTATSSCHED;
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| 109 |
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| 110 | /**
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| 111 | * The GMM statistics.
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| 112 | */
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| 113 | typedef struct GVMMSTATS
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| 114 | {
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| 115 | /** The VM statistics if a VM was specified. */
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| 116 | GVMMSTATSSCHED SchedVM;
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| 117 | /** The sum statistics of all VMs accessible to the caller. */
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| 118 | GVMMSTATSSCHED SchedSum;
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| 119 | /** The number of VMs accessible to the caller. */
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| 120 | uint32_t cVMs;
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| 121 | /** The number of emulation threads in those VMs. */
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| 122 | uint32_t cEMTs;
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| 123 | } GVMMSTATS;
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| 124 | /** Pointer to the GVMM statistics. */
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| 125 | typedef GVMMSTATS *PGVMMSTATS;
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| 126 | /** Const pointer to the GVMM statistics. */
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| 127 | typedef const GVMMSTATS *PCGVMMSTATS;
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| 128 |
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| 129 |
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| 130 |
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| 131 | GVMMR0DECL(int) GVMMR0Init(void);
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| 132 | GVMMR0DECL(void) GVMMR0Term(void);
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| 133 | GVMMR0DECL(int) GVMMR0SetConfig(PSUPDRVSESSION pSession, const char *pszName, uint64_t u64Value);
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| 134 | GVMMR0DECL(int) GVMMR0QueryConfig(PSUPDRVSESSION pSession, const char *pszName, uint64_t *pu64Value);
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| 135 |
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| 136 | GVMMR0DECL(int) GVMMR0CreateVM(PSUPDRVSESSION pSession, uint32_t cCpus, PVM *ppVM);
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| 137 | GVMMR0DECL(int) GVMMR0InitVM(PVM pVM);
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| 138 | GVMMR0DECL(void) GVMMR0DoneInitVM(PVM pVM);
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| 139 | GVMMR0DECL(bool) GVMMR0DoingTermVM(PVM pVM, PGVM pGVM);
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| 140 | GVMMR0DECL(int) GVMMR0DestroyVM(PVM pVM);
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| 141 | GVMMR0DECL(int) GVMMR0RegisterVCpu(PVM pVM, VMCPUID idCpu);
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| 142 | GVMMR0DECL(PGVM) GVMMR0ByHandle(uint32_t hGVM);
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| 143 | GVMMR0DECL(PGVM) GVMMR0ByVM(PVM pVM);
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| 144 | GVMMR0DECL(int) GVMMR0ByVMAndEMT(PVM pVM, VMCPUID idCpu, PGVM *ppGVM);
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| 145 | GVMMR0DECL(PVM) GVMMR0GetVMByHandle(uint32_t hGVM);
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| 146 | GVMMR0DECL(PVM) GVMMR0GetVMByEMT(RTNATIVETHREAD hEMT);
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| 147 | GVMMR0DECL(int) GVMMR0SchedHalt(PVM pVM, VMCPUID idCpu, uint64_t u64ExpireGipTime);
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| 148 | GVMMR0DECL(int) GVMMR0SchedWakeUp(PVM pVM, VMCPUID idCpu);
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| 149 | GVMMR0DECL(int) GVMMR0SchedWakeUpEx(PVM pVM, VMCPUID idCpu, bool fTakeUsedLock);
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| 150 | GVMMR0DECL(int) GVMMR0SchedPoke(PVM pVM, VMCPUID idCpu);
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| 151 | GVMMR0DECL(int) GVMMR0SchedPokeEx(PVM pVM, VMCPUID idCpu, bool fTakeUsedLock);
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| 152 | GVMMR0DECL(int) GVMMR0SchedWakeUpAndPokeCpus(PVM pVM, PCVMCPUSET pSleepSet, PCVMCPUSET pPokeSet);
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| 153 | GVMMR0DECL(int) GVMMR0SchedPoll(PVM pVM, VMCPUID idCpu, bool fYield);
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| 154 | GVMMR0DECL(int) GVMMR0QueryStatistics(PGVMMSTATS pStats, PSUPDRVSESSION pSession, PVM pVM);
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| 155 | GVMMR0DECL(int) GVMMR0ResetStatistics(PCGVMMSTATS pStats, PSUPDRVSESSION pSession, PVM pVM);
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| 156 |
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| 157 |
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| 158 | /**
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| 159 | * Request packet for calling GVMMR0CreateVM.
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| 160 | */
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| 161 | typedef struct GVMMCREATEVMREQ
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| 162 | {
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| 163 | /** The request header. */
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| 164 | SUPVMMR0REQHDR Hdr;
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| 165 | /** The support driver session. (IN) */
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| 166 | PSUPDRVSESSION pSession;
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| 167 | /** Number of virtual CPUs for the new VM. (IN) */
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| 168 | uint32_t cCpus;
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| 169 | /** Pointer to the ring-3 mapping of the shared VM structure on return. (OUT) */
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| 170 | PVMR3 pVMR3;
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| 171 | /** Pointer to the ring-0 mapping of the shared VM structure on return. (OUT) */
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| 172 | PVMR0 pVMR0;
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| 173 | } GVMMCREATEVMREQ;
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| 174 | /** Pointer to a GVMMR0CreateVM request packet. */
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| 175 | typedef GVMMCREATEVMREQ *PGVMMCREATEVMREQ;
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| 176 |
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| 177 | GVMMR0DECL(int) GVMMR0CreateVMReq(PGVMMCREATEVMREQ pReq);
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| 178 |
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| 179 |
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| 180 | /**
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| 181 | * Request buffer for GVMMR0SchedWakeUpAndPokeCpusReq / VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS.
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| 182 | * @see GVMMR0SchedWakeUpAndPokeCpus.
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| 183 | */
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| 184 | typedef struct GVMMSCHEDWAKEUPANDPOKECPUSREQ /* nice and unreadable... */
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| 185 | {
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| 186 | /** The header. */
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| 187 | SUPVMMR0REQHDR Hdr;
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| 188 | /** The sleeper set. */
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| 189 | VMCPUSET SleepSet;
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| 190 | /** The set of virtual CPUs to poke. */
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| 191 | VMCPUSET PokeSet;
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| 192 | } GVMMSCHEDWAKEUPANDPOKECPUSREQ;
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| 193 | /** Pointer to a GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS request buffer. */
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| 194 | typedef GVMMSCHEDWAKEUPANDPOKECPUSREQ *PGVMMSCHEDWAKEUPANDPOKECPUSREQ;
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| 195 |
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| 196 | GVMMR0DECL(int) GVMMR0SchedWakeUpAndPokeCpusReq(PVM pVM, PGVMMSCHEDWAKEUPANDPOKECPUSREQ pReq);
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| 197 |
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| 198 |
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| 199 | /**
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| 200 | * Request buffer for GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS.
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| 201 | * @see GVMMR0QueryStatistics.
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| 202 | */
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| 203 | typedef struct GVMMQUERYSTATISTICSSREQ
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| 204 | {
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| 205 | /** The header. */
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| 206 | SUPVMMR0REQHDR Hdr;
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| 207 | /** The support driver session. */
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| 208 | PSUPDRVSESSION pSession;
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| 209 | /** The statistics. */
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| 210 | GVMMSTATS Stats;
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| 211 | } GVMMQUERYSTATISTICSSREQ;
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| 212 | /** Pointer to a GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS request buffer. */
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| 213 | typedef GVMMQUERYSTATISTICSSREQ *PGVMMQUERYSTATISTICSSREQ;
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| 214 |
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| 215 | GVMMR0DECL(int) GVMMR0QueryStatisticsReq(PVM pVM, PGVMMQUERYSTATISTICSSREQ pReq);
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| 216 |
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| 217 |
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| 218 | /**
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| 219 | * Request buffer for GVMMR0ResetStatisticsReq / VMMR0_DO_GVMM_RESET_STATISTICS.
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| 220 | * @see GVMMR0ResetStatistics.
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| 221 | */
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| 222 | typedef struct GVMMRESETSTATISTICSSREQ
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| 223 | {
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| 224 | /** The header. */
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| 225 | SUPVMMR0REQHDR Hdr;
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| 226 | /** The support driver session. */
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| 227 | PSUPDRVSESSION pSession;
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| 228 | /** The statistics to reset.
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| 229 | * Any non-zero entry will be reset (if permitted). */
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| 230 | GVMMSTATS Stats;
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| 231 | } GVMMRESETSTATISTICSSREQ;
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| 232 | /** Pointer to a GVMMR0ResetStatisticsReq / VMMR0_DO_GVMM_RESET_STATISTICS request buffer. */
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| 233 | typedef GVMMRESETSTATISTICSSREQ *PGVMMRESETSTATISTICSSREQ;
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| 234 |
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| 235 | GVMMR0DECL(int) GVMMR0ResetStatisticsReq(PVM pVM, PGVMMRESETSTATISTICSSREQ pReq);
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| 236 |
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| 237 |
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| 238 | /** @} */
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| 239 |
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| 240 | RT_C_DECLS_END
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| 241 |
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| 242 | #endif
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| 243 |
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