| 1 | /* $Id: gvmm.h 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GVMM - The Global VM Manager.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 | #ifndef VBOX_INCLUDED_vmm_gvmm_h
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| 38 | #define VBOX_INCLUDED_vmm_gvmm_h
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| 39 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 40 | # pragma once
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| 41 | #endif
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| 42 |
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| 43 | #include <VBox/types.h>
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| 44 | #include <VBox/vmm/stam.h>
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| 45 | #include <VBox/sup.h>
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| 46 | #include <VBox/param.h>
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| 47 | #include <iprt/cpuset.h> /* RTCPUSET_MAX_CPUS */
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| 48 |
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| 49 |
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| 50 | RT_C_DECLS_BEGIN
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| 51 |
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| 52 | /** @defgroup grp_gvmm GVMM - The Global VM Manager.
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| 53 | * @ingroup grp_vmm
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| 54 | * @{
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| 55 | */
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| 56 |
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| 57 | /** @def IN_GVMM_R0
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| 58 | * Used to indicate whether we're inside the same link module as the ring 0
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| 59 | * part of the Global VM Manager or not.
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| 60 | */
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| 61 | #ifdef DOXYGEN_RUNNING
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| 62 | # define IN_GVMM_R0
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| 63 | #endif
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| 64 | /** @def GVMMR0DECL
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| 65 | * Ring 0 VM export or import declaration.
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| 66 | * @param type The return type of the function declaration.
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| 67 | */
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| 68 | #ifdef IN_GVMM_R0
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| 69 | # define GVMMR0DECL(type) DECLEXPORT(type) VBOXCALL
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| 70 | #else
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| 71 | # define GVMMR0DECL(type) DECLIMPORT(type) VBOXCALL
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| 72 | #endif
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| 73 |
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| 74 | /** @def NIL_GVM_HANDLE
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| 75 | * The nil GVM VM handle value (VM::hSelf).
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| 76 | */
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| 77 | #define NIL_GVM_HANDLE 0
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| 78 |
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| 79 |
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| 80 | /**
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| 81 | * The scheduler statistics
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| 82 | */
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| 83 | typedef struct GVMMSTATSSCHED
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| 84 | {
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| 85 | /** The number of calls to GVMMR0SchedHalt. */
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| 86 | uint64_t cHaltCalls;
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| 87 | /** The number of times we did go to sleep in GVMMR0SchedHalt. */
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| 88 | uint64_t cHaltBlocking;
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| 89 | /** The number of times we timed out in GVMMR0SchedHalt. */
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| 90 | uint64_t cHaltTimeouts;
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| 91 | /** The number of times we didn't go to sleep in GVMMR0SchedHalt. */
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| 92 | uint64_t cHaltNotBlocking;
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| 93 | /** The number of wake ups done during GVMMR0SchedHalt. */
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| 94 | uint64_t cHaltWakeUps;
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| 95 |
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| 96 | /** The number of calls to GVMMR0WakeUp. */
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| 97 | uint64_t cWakeUpCalls;
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| 98 | /** The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp
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| 99 | * was called. */
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| 100 | uint64_t cWakeUpNotHalted;
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| 101 | /** The number of wake ups done during GVMMR0WakeUp (not counting the explicit
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| 102 | * one). */
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| 103 | uint64_t cWakeUpWakeUps;
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| 104 |
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| 105 | /** The number of calls to GVMMR0Poke. */
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| 106 | uint64_t cPokeCalls;
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| 107 | /** The number of times the EMT thread wasn't actually busy when
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| 108 | * GVMMR0Poke was called. */
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| 109 | uint64_t cPokeNotBusy;
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| 110 |
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| 111 | /** The number of calls to GVMMR0SchedPoll. */
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| 112 | uint64_t cPollCalls;
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| 113 | /** The number of times the EMT has halted in a GVMMR0SchedPoll call. */
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| 114 | uint64_t cPollHalts;
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| 115 | /** The number of wake ups done during GVMMR0SchedPoll. */
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| 116 | uint64_t cPollWakeUps;
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| 117 |
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| 118 | uint64_t u64Alignment; /**< padding */
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| 119 | } GVMMSTATSSCHED;
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| 120 | /** Pointer to the GVMM scheduler statistics. */
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| 121 | typedef GVMMSTATSSCHED *PGVMMSTATSSCHED;
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| 122 |
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| 123 | /**
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| 124 | * Per host cpu statistics.
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| 125 | */
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| 126 | typedef struct GVMMSTATSHOSTCPU
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| 127 | {
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| 128 | /** The CPU ID. */
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| 129 | RTCPUID idCpu;
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| 130 | /** The CPU's set index. */
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| 131 | uint32_t idxCpuSet;
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| 132 | /** The desired PPT frequency. */
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| 133 | uint32_t uDesiredHz;
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| 134 | /** The current PPT timer frequency. */
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| 135 | uint32_t uTimerHz;
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| 136 | /** The number of times the PPT was changed. */
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| 137 | uint32_t cChanges;
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| 138 | /** The number of times the PPT was started. */
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| 139 | uint32_t cStarts;
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| 140 | } GVMMSTATSHOSTCPU;
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| 141 | /** Pointer to the GVMM per host CPU statistics. */
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| 142 | typedef GVMMSTATSHOSTCPU *PGVMMSTATSHOSTCPU;
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| 143 |
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| 144 | /**
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| 145 | * Per VCpu statistics
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| 146 | */
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| 147 | typedef struct GVMMSTATSVMCPU
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| 148 | {
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| 149 | uint32_t cWakeUpTimerHits;
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| 150 | uint32_t cWakeUpTimerMisses;
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| 151 | uint32_t cWakeUpTimerCanceled;
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| 152 | uint32_t cWakeUpTimerSameCpu;
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| 153 | STAMPROFILE Start;
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| 154 | STAMPROFILE Stop;
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| 155 | } GVMMSTATSVMCPU;
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| 156 | /** Ptoiner to the GVMM per VCpu statistics. */
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| 157 | typedef GVMMSTATSVMCPU *PGVMMSTATSVMCPU;
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| 158 |
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| 159 | /**
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| 160 | * The GVMM statistics.
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| 161 | */
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| 162 | typedef struct GVMMSTATS
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| 163 | {
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| 164 | /** The VM statistics if a VM was specified. */
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| 165 | GVMMSTATSSCHED SchedVM;
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| 166 | /** The sum statistics of all VMs accessible to the caller. */
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| 167 | GVMMSTATSSCHED SchedSum;
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| 168 | /** The number of VMs accessible to the caller. */
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| 169 | uint32_t cVMs;
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| 170 | /** The number of emulation threads in those VMs. */
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| 171 | uint32_t cEMTs;
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| 172 | /** Padding. */
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| 173 | uint32_t u32Padding;
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| 174 | /** The number of valid entries in aHostCpus. */
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| 175 | uint32_t cHostCpus;
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| 176 | /** Per EMT statistics for the specified VM, zero if non specified. */
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| 177 | GVMMSTATSVMCPU aVCpus[VMM_MAX_CPU_COUNT];
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| 178 | /** Per host CPU statistics. */
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| 179 | GVMMSTATSHOSTCPU aHostCpus[RTCPUSET_MAX_CPUS];
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| 180 | } GVMMSTATS;
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| 181 | /** Pointer to the GVMM statistics. */
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| 182 | typedef GVMMSTATS *PGVMMSTATS;
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| 183 | /** Const pointer to the GVMM statistics. */
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| 184 | typedef const GVMMSTATS *PCGVMMSTATS;
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| 185 |
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| 186 | /**
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| 187 | * Per-VM callback for GVMMR0EnumVMs.
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| 188 | *
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| 189 | * @note This is called while holding the VM used list lock, so only suitable
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| 190 | * for quick and simple jobs!
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| 191 | *
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| 192 | * @returns VINF_SUCCESS to continue the enumeration, anything stops it and
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| 193 | * returns the status code.
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| 194 | * @param pGVM The VM
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| 195 | * @param pvUser The user parameter.
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| 196 | * */
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| 197 | typedef DECLCALLBACKTYPE(int, FNGVMMR0ENUMCALLBACK,(PGVM pGVM, void *pvUser));
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| 198 | /** Pointer to an VM enumeration callback function. */
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| 199 | typedef FNGVMMR0ENUMCALLBACK *PFNGVMMR0ENUMCALLBACK;
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| 200 |
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| 201 | /**
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| 202 | * Worker thread IDs.
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| 203 | */
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| 204 | typedef enum GVMMWORKERTHREAD
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| 205 | {
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| 206 | /** The usual invalid zero value. */
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| 207 | GVMMWORKERTHREAD_INVALID = 0,
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| 208 | /** PGM handy page allocator thread. */
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| 209 | GVMMWORKERTHREAD_PGM_ALLOCATOR,
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| 210 | /** End of valid worker thread values. */
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| 211 | GVMMWORKERTHREAD_END,
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| 212 | /** Make sure the type size is 32 bits. */
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| 213 | GVMMWORKERTHREAD_32_BIT_HACK = 0x7fffffff
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| 214 | } GVMMWORKERTHREAD;
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| 215 |
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| 216 | GVMMR0DECL(int) GVMMR0Init(void);
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| 217 | GVMMR0DECL(void) GVMMR0Term(void);
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| 218 | GVMMR0DECL(int) GVMMR0SetConfig(PSUPDRVSESSION pSession, const char *pszName, uint64_t u64Value);
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| 219 | GVMMR0DECL(int) GVMMR0QueryConfig(PSUPDRVSESSION pSession, const char *pszName, uint64_t *pu64Value);
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| 220 |
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| 221 | GVMMR0DECL(int) GVMMR0CreateVM(PSUPDRVSESSION pSession, uint32_t cCpus, PVMCC *ppVM);
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| 222 | GVMMR0DECL(int) GVMMR0InitVM(PGVM pGVM);
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| 223 | GVMMR0DECL(void) GVMMR0DoneInitVM(PGVM pGVM);
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| 224 | GVMMR0DECL(bool) GVMMR0DoingTermVM(PGVM pGVM);
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| 225 | GVMMR0DECL(int) GVMMR0DestroyVM(PGVM pGVM);
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| 226 | GVMMR0DECL(int) GVMMR0RegisterVCpu(PGVM pGVM, VMCPUID idCpu);
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| 227 | GVMMR0DECL(int) GVMMR0DeregisterVCpu(PGVM pGVM, VMCPUID idCpu);
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| 228 | GVMMR0DECL(int) GVMMR0RegisterWorkerThread(PGVM pGVM, GVMMWORKERTHREAD enmWorker, RTNATIVETHREAD hThreadR3);
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| 229 | GVMMR0DECL(int) GVMMR0DeregisterWorkerThread(PGVM pGVM, GVMMWORKERTHREAD enmWorker);
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| 230 | GVMMR0DECL(PGVM) GVMMR0ByHandle(uint32_t hGVM);
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| 231 | GVMMR0DECL(int) GVMMR0ValidateGVM(PGVM pGVM);
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| 232 | GVMMR0DECL(int) GVMMR0ValidateGVMandEMT(PGVM pGVM, VMCPUID idCpu);
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| 233 | GVMMR0DECL(int) GVMMR0ValidateGVMandEMTorWorker(PGVM pGVM, VMCPUID idCpu, GVMMWORKERTHREAD enmWorker);
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| 234 | GVMMR0DECL(PVMCC) GVMMR0GetVMByEMT(RTNATIVETHREAD hEMT);
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| 235 | GVMMR0DECL(PGVMCPU) GVMMR0GetGVCpuByEMT(RTNATIVETHREAD hEMT);
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| 236 | GVMMR0DECL(PGVMCPU) GVMMR0GetGVCpuByGVMandEMT(PGVM pGVM, RTNATIVETHREAD hEMT);
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| 237 | GVMMR0DECL(RTNATIVETHREAD) GVMMR0GetRing3ThreadForSelf(PGVM pGVM);
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| 238 | GVMMR0DECL(RTHCPHYS) GVMMR0ConvertGVMPtr2HCPhys(PGVM pGVM, void *pv);
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| 239 | GVMMR0DECL(int) GVMMR0SchedHalt(PGVM pGVM, PGVMCPU pGVCpu, uint64_t u64ExpireGipTime);
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| 240 | GVMMR0DECL(int) GVMMR0SchedHaltReq(PGVM pGVM, VMCPUID idCpu, uint64_t u64ExpireGipTime);
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| 241 | GVMMR0DECL(int) GVMMR0SchedWakeUp(PGVM pGVM, VMCPUID idCpu);
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| 242 | GVMMR0DECL(int) GVMMR0SchedWakeUpEx(PGVM pGVM, VMCPUID idCpu, bool fTakeUsedLock);
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| 243 | GVMMR0DECL(int) GVMMR0SchedWakeUpNoGVMNoLock(PGVM pGVM, VMCPUID idCpu);
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| 244 | GVMMR0DECL(int) GVMMR0SchedPoke(PGVM pGVM, VMCPUID idCpu);
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| 245 | GVMMR0DECL(int) GVMMR0SchedPokeEx(PGVM pGVM, VMCPUID idCpu, bool fTakeUsedLock);
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| 246 | GVMMR0DECL(int) GVMMR0SchedPokeNoGVMNoLock(PVMCC pVM, VMCPUID idCpu);
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| 247 | GVMMR0DECL(int) GVMMR0SchedWakeUpAndPokeCpus(PGVM pGVM, PCVMCPUSET pSleepSet, PCVMCPUSET pPokeSet);
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| 248 | GVMMR0DECL(int) GVMMR0SchedPoll(PGVM pGVM, VMCPUID idCpu, bool fYield);
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| 249 | GVMMR0DECL(void) GVMMR0SchedUpdatePeriodicPreemptionTimer(PGVM pGVM, RTCPUID idHostCpu, uint32_t uHz);
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| 250 | GVMMR0DECL(int) GVMMR0EnumVMs(PFNGVMMR0ENUMCALLBACK pfnCallback, void *pvUser);
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| 251 | GVMMR0DECL(int) GVMMR0QueryStatistics(PGVMMSTATS pStats, PSUPDRVSESSION pSession, PGVM pGVM);
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| 252 | GVMMR0DECL(int) GVMMR0ResetStatistics(PCGVMMSTATS pStats, PSUPDRVSESSION pSession, PGVM pGVM);
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| 253 |
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| 254 |
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| 255 | /**
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| 256 | * Request packet for calling GVMMR0CreateVM.
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| 257 | */
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| 258 | typedef struct GVMMCREATEVMREQ
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| 259 | {
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| 260 | /** The request header. */
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| 261 | SUPVMMR0REQHDR Hdr;
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| 262 | /** The support driver session. (IN) */
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| 263 | PSUPDRVSESSION pSession;
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| 264 | /** Number of virtual CPUs for the new VM. (IN) */
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| 265 | uint32_t cCpus;
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| 266 | /** Pointer to the ring-3 mapping of the shared VM structure on return. (OUT) */
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| 267 | PVMR3 pVMR3;
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| 268 | /** Pointer to the ring-0 mapping of the shared VM structure on return. (OUT) */
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| 269 | PVMR0 pVMR0;
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| 270 | } GVMMCREATEVMREQ;
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| 271 | /** Pointer to a GVMMR0CreateVM request packet. */
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| 272 | typedef GVMMCREATEVMREQ *PGVMMCREATEVMREQ;
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| 273 |
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| 274 | GVMMR0DECL(int) GVMMR0CreateVMReq(PGVMMCREATEVMREQ pReq, PSUPDRVSESSION pSession);
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| 275 |
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| 276 |
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| 277 | /**
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| 278 | * Request packet for calling GVMMR0RegisterWorkerThread.
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| 279 | */
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| 280 | typedef struct GVMMREGISTERWORKERTHREADREQ
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| 281 | {
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| 282 | /** The request header. */
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| 283 | SUPVMMR0REQHDR Hdr;
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| 284 | /** Ring-3 native thread handle of the caller. (IN) */
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| 285 | RTNATIVETHREAD hNativeThreadR3;
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| 286 | } GVMMREGISTERWORKERTHREADREQ;
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| 287 | /** Pointer to a GVMMR0RegisterWorkerThread request packet. */
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| 288 | typedef GVMMREGISTERWORKERTHREADREQ *PGVMMREGISTERWORKERTHREADREQ;
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| 289 |
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| 290 |
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| 291 | /**
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| 292 | * Request buffer for GVMMR0SchedWakeUpAndPokeCpusReq / VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS.
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| 293 | * @see GVMMR0SchedWakeUpAndPokeCpus.
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| 294 | */
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| 295 | typedef struct GVMMSCHEDWAKEUPANDPOKECPUSREQ /* nice and unreadable... */
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| 296 | {
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| 297 | /** The header. */
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| 298 | SUPVMMR0REQHDR Hdr;
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| 299 | /** The sleeper set. */
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| 300 | VMCPUSET SleepSet;
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| 301 | /** The set of virtual CPUs to poke. */
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| 302 | VMCPUSET PokeSet;
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| 303 | } GVMMSCHEDWAKEUPANDPOKECPUSREQ;
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| 304 | /** Pointer to a GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS request buffer. */
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| 305 | typedef GVMMSCHEDWAKEUPANDPOKECPUSREQ *PGVMMSCHEDWAKEUPANDPOKECPUSREQ;
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| 306 |
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| 307 | GVMMR0DECL(int) GVMMR0SchedWakeUpAndPokeCpusReq(PGVM pGVM, PGVMMSCHEDWAKEUPANDPOKECPUSREQ pReq);
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| 308 |
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| 309 |
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| 310 | /**
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| 311 | * Request buffer for GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS.
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| 312 | * @see GVMMR0QueryStatistics.
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| 313 | */
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| 314 | typedef struct GVMMQUERYSTATISTICSSREQ
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| 315 | {
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| 316 | /** The header. */
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| 317 | SUPVMMR0REQHDR Hdr;
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| 318 | /** The support driver session. */
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| 319 | PSUPDRVSESSION pSession;
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| 320 | /** The statistics. */
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| 321 | GVMMSTATS Stats;
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| 322 | } GVMMQUERYSTATISTICSSREQ;
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| 323 | /** Pointer to a GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS request buffer. */
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| 324 | typedef GVMMQUERYSTATISTICSSREQ *PGVMMQUERYSTATISTICSSREQ;
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| 325 |
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| 326 | GVMMR0DECL(int) GVMMR0QueryStatisticsReq(PGVM pGVM, PGVMMQUERYSTATISTICSSREQ pReq, PSUPDRVSESSION pSession);
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| 327 |
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| 328 |
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| 329 | /**
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| 330 | * Request buffer for GVMMR0ResetStatisticsReq / VMMR0_DO_GVMM_RESET_STATISTICS.
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| 331 | * @see GVMMR0ResetStatistics.
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| 332 | */
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| 333 | typedef struct GVMMRESETSTATISTICSSREQ
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| 334 | {
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| 335 | /** The header. */
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| 336 | SUPVMMR0REQHDR Hdr;
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| 337 | /** The support driver session. */
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| 338 | PSUPDRVSESSION pSession;
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| 339 | /** The statistics to reset.
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| 340 | * Any non-zero entry will be reset (if permitted). */
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| 341 | GVMMSTATS Stats;
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| 342 | } GVMMRESETSTATISTICSSREQ;
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| 343 | /** Pointer to a GVMMR0ResetStatisticsReq / VMMR0_DO_GVMM_RESET_STATISTICS request buffer. */
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| 344 | typedef GVMMRESETSTATISTICSSREQ *PGVMMRESETSTATISTICSSREQ;
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| 345 |
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| 346 | GVMMR0DECL(int) GVMMR0ResetStatisticsReq(PGVM pGVM, PGVMMRESETSTATISTICSSREQ pReq, PSUPDRVSESSION pSession);
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| 347 |
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| 348 |
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| 349 | #ifdef IN_RING3
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| 350 | VMMR3_INT_DECL(int) GVMMR3CreateVM(PUVM pUVM, uint32_t cCpus, PSUPDRVSESSION pSession, PVM *ppVM, PRTR0PTR ppVMR0);
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| 351 | VMMR3_INT_DECL(int) GVMMR3DestroyVM(PUVM pUVM, PVM pVM);
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| 352 | VMMR3_INT_DECL(int) GVMMR3RegisterVCpu(PVM pVM, VMCPUID idCpu);
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| 353 | VMMR3_INT_DECL(int) GVMMR3DeregisterVCpu(PVM pVM, VMCPUID idCpu);
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| 354 | VMMR3_INT_DECL(int) GVMMR3RegisterWorkerThread(PVM pVM, GVMMWORKERTHREAD enmWorker);
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| 355 | VMMR3_INT_DECL(int) GVMMR3DeregisterWorkerThread(PVM pVM, GVMMWORKERTHREAD enmWorker);
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| 356 | #endif
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| 357 |
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| 358 |
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| 359 | /** @} */
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| 360 |
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| 361 | RT_C_DECLS_END
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| 362 |
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| 363 | #endif /* !VBOX_INCLUDED_vmm_gvmm_h */
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| 364 |
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