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/* $Id: gvmm.h $ */
/** @file
* GVMM - The Global VM Manager.
*/
/*
* Copyright (C) 2007-2012 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_gvmm_h
#define ___VBox_vmm_gvmm_h
#include <VBox/types.h>
#include <VBox/sup.h>
#include <iprt/cpuset.h> /* RTCPUSET_MAX_CPUS */
RT_C_DECLS_BEGIN
/** @defgroup grp_GVMM GVMM - The Global VM Manager.
* @{
*/
/** @def IN_GVMM_R0
* Used to indicate whether we're inside the same link module as the ring 0
* part of the Global VM Manager or not.
*/
#ifdef DOXYGEN_RUNNING
# define IN_GVMM_R0
#endif
/** @def GVMMR0DECL
* Ring 0 VM export or import declaration.
* @param type The return type of the function declaration.
*/
#ifdef IN_GVMM_R0
# define GVMMR0DECL(type) DECLEXPORT(type) VBOXCALL
#else
# define GVMMR0DECL(type) DECLIMPORT(type) VBOXCALL
#endif
/** @def NIL_GVM_HANDLE
* The nil GVM VM handle value (VM::hSelf).
*/
#define NIL_GVM_HANDLE 0
/**
* The scheduler statistics
*/
typedef struct GVMMSTATSSCHED
{
/** The number of calls to GVMMR0SchedHalt. */
uint64_t cHaltCalls;
/** The number of times we did go to sleep in GVMMR0SchedHalt. */
uint64_t cHaltBlocking;
/** The number of times we timed out in GVMMR0SchedHalt. */
uint64_t cHaltTimeouts;
/** The number of times we didn't go to sleep in GVMMR0SchedHalt. */
uint64_t cHaltNotBlocking;
/** The number of wake ups done during GVMMR0SchedHalt. */
uint64_t cHaltWakeUps;
/** The number of calls to GVMMR0WakeUp. */
uint64_t cWakeUpCalls;
/** The number of times the EMT thread wasn't actually halted when GVMMR0WakeUp
* was called. */
uint64_t cWakeUpNotHalted;
/** The number of wake ups done during GVMMR0WakeUp (not counting the explicit
* one). */
uint64_t cWakeUpWakeUps;
/** The number of calls to GVMMR0Poke. */
uint64_t cPokeCalls;
/** The number of times the EMT thread wasn't actually busy when
* GVMMR0Poke was called. */
uint64_t cPokeNotBusy;
/** The number of calls to GVMMR0SchedPoll. */
uint64_t cPollCalls;
/** The number of times the EMT has halted in a GVMMR0SchedPoll call. */
uint64_t cPollHalts;
/** The number of wake ups done during GVMMR0SchedPoll. */
uint64_t cPollWakeUps;
uint64_t u64Alignment; /**< padding */
} GVMMSTATSSCHED;
/** Pointer to the GVMM scheduler statistics. */
typedef GVMMSTATSSCHED *PGVMMSTATSSCHED;
/**
* Per host cpu statistics.
*/
typedef struct GVMMSTATSHOSTCPU
{
/** The CPU ID. */
RTCPUID idCpu;
/** The CPU's set index. */
uint32_t idxCpuSet;
/** The desired PPT frequency. */
uint32_t uDesiredHz;
/** The current PPT timer frequency. */
uint32_t uTimerHz;
/** The number of times the PPT was changed. */
uint32_t cChanges;
/** The number of times the PPT was started. */
uint32_t cStarts;
} GVMMSTATSHOSTCPU;
/** Pointer to the GVMM per host CPU statistics. */
typedef GVMMSTATSHOSTCPU *PGVMMSTATSHOSTCPU;
/**
* The GVMM statistics.
*/
typedef struct GVMMSTATS
{
/** The VM statistics if a VM was specified. */
GVMMSTATSSCHED SchedVM;
/** The sum statistics of all VMs accessible to the caller. */
GVMMSTATSSCHED SchedSum;
/** The number of VMs accessible to the caller. */
uint32_t cVMs;
/** The number of emulation threads in those VMs. */
uint32_t cEMTs;
/** Padding. */
uint32_t u32Padding;
/** The number of valid entries in aHostCpus. */
uint32_t cHostCpus;
/** Per host CPU statistics. */
GVMMSTATSHOSTCPU aHostCpus[RTCPUSET_MAX_CPUS];
} GVMMSTATS;
/** Pointer to the GVMM statistics. */
typedef GVMMSTATS *PGVMMSTATS;
/** Const pointer to the GVMM statistics. */
typedef const GVMMSTATS *PCGVMMSTATS;
GVMMR0DECL(int) GVMMR0Init(void);
GVMMR0DECL(void) GVMMR0Term(void);
GVMMR0DECL(int) GVMMR0SetConfig(PSUPDRVSESSION pSession, const char *pszName, uint64_t u64Value);
GVMMR0DECL(int) GVMMR0QueryConfig(PSUPDRVSESSION pSession, const char *pszName, uint64_t *pu64Value);
GVMMR0DECL(int) GVMMR0CreateVM(PSUPDRVSESSION pSession, uint32_t cCpus, PVM *ppVM);
GVMMR0DECL(int) GVMMR0InitVM(PVM pVM);
GVMMR0DECL(void) GVMMR0DoneInitVM(PVM pVM);
GVMMR0DECL(bool) GVMMR0DoingTermVM(PVM pVM, PGVM pGVM);
GVMMR0DECL(int) GVMMR0DestroyVM(PVM pVM);
GVMMR0DECL(int) GVMMR0RegisterVCpu(PVM pVM, VMCPUID idCpu);
GVMMR0DECL(PGVM) GVMMR0ByHandle(uint32_t hGVM);
GVMMR0DECL(int) GVMMR0ByVM(PVM pVM, PGVM *ppGVM);
GVMMR0DECL(int) GVMMR0ByVMAndEMT(PVM pVM, VMCPUID idCpu, PGVM *ppGVM);
GVMMR0DECL(PVM) GVMMR0GetVMByHandle(uint32_t hGVM);
GVMMR0DECL(PVM) GVMMR0GetVMByEMT(RTNATIVETHREAD hEMT);
GVMMR0DECL(int) GVMMR0SchedHalt(PVM pVM, VMCPUID idCpu, uint64_t u64ExpireGipTime);
GVMMR0DECL(int) GVMMR0SchedWakeUp(PVM pVM, VMCPUID idCpu);
GVMMR0DECL(int) GVMMR0SchedWakeUpEx(PVM pVM, VMCPUID idCpu, bool fTakeUsedLock);
GVMMR0DECL(int) GVMMR0SchedPoke(PVM pVM, VMCPUID idCpu);
GVMMR0DECL(int) GVMMR0SchedPokeEx(PVM pVM, VMCPUID idCpu, bool fTakeUsedLock);
GVMMR0DECL(int) GVMMR0SchedWakeUpAndPokeCpus(PVM pVM, PCVMCPUSET pSleepSet, PCVMCPUSET pPokeSet);
GVMMR0DECL(int) GVMMR0SchedPoll(PVM pVM, VMCPUID idCpu, bool fYield);
GVMMR0DECL(void) GVMMR0SchedUpdatePeriodicPreemptionTimer(PVM pVM, RTCPUID idHostCpu, uint32_t uHz);
GVMMR0DECL(int) GVMMR0QueryStatistics(PGVMMSTATS pStats, PSUPDRVSESSION pSession, PVM pVM);
GVMMR0DECL(int) GVMMR0ResetStatistics(PCGVMMSTATS pStats, PSUPDRVSESSION pSession, PVM pVM);
/**
* Request packet for calling GVMMR0CreateVM.
*/
typedef struct GVMMCREATEVMREQ
{
/** The request header. */
SUPVMMR0REQHDR Hdr;
/** The support driver session. (IN) */
PSUPDRVSESSION pSession;
/** Number of virtual CPUs for the new VM. (IN) */
uint32_t cCpus;
/** Pointer to the ring-3 mapping of the shared VM structure on return. (OUT) */
PVMR3 pVMR3;
/** Pointer to the ring-0 mapping of the shared VM structure on return. (OUT) */
PVMR0 pVMR0;
} GVMMCREATEVMREQ;
/** Pointer to a GVMMR0CreateVM request packet. */
typedef GVMMCREATEVMREQ *PGVMMCREATEVMREQ;
GVMMR0DECL(int) GVMMR0CreateVMReq(PGVMMCREATEVMREQ pReq);
/**
* Request buffer for GVMMR0SchedWakeUpAndPokeCpusReq / VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS.
* @see GVMMR0SchedWakeUpAndPokeCpus.
*/
typedef struct GVMMSCHEDWAKEUPANDPOKECPUSREQ /* nice and unreadable... */
{
/** The header. */
SUPVMMR0REQHDR Hdr;
/** The sleeper set. */
VMCPUSET SleepSet;
/** The set of virtual CPUs to poke. */
VMCPUSET PokeSet;
} GVMMSCHEDWAKEUPANDPOKECPUSREQ;
/** Pointer to a GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS request buffer. */
typedef GVMMSCHEDWAKEUPANDPOKECPUSREQ *PGVMMSCHEDWAKEUPANDPOKECPUSREQ;
GVMMR0DECL(int) GVMMR0SchedWakeUpAndPokeCpusReq(PVM pVM, PGVMMSCHEDWAKEUPANDPOKECPUSREQ pReq);
/**
* Request buffer for GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS.
* @see GVMMR0QueryStatistics.
*/
typedef struct GVMMQUERYSTATISTICSSREQ
{
/** The header. */
SUPVMMR0REQHDR Hdr;
/** The support driver session. */
PSUPDRVSESSION pSession;
/** The statistics. */
GVMMSTATS Stats;
} GVMMQUERYSTATISTICSSREQ;
/** Pointer to a GVMMR0QueryStatisticsReq / VMMR0_DO_GVMM_QUERY_STATISTICS request buffer. */
typedef GVMMQUERYSTATISTICSSREQ *PGVMMQUERYSTATISTICSSREQ;
GVMMR0DECL(int) GVMMR0QueryStatisticsReq(PVM pVM, PGVMMQUERYSTATISTICSSREQ pReq);
/**
* Request buffer for GVMMR0ResetStatisticsReq / VMMR0_DO_GVMM_RESET_STATISTICS.
* @see GVMMR0ResetStatistics.
*/
typedef struct GVMMRESETSTATISTICSSREQ
{
/** The header. */
SUPVMMR0REQHDR Hdr;
/** The support driver session. */
PSUPDRVSESSION pSession;
/** The statistics to reset.
* Any non-zero entry will be reset (if permitted). */
GVMMSTATS Stats;
} GVMMRESETSTATISTICSSREQ;
/** Pointer to a GVMMR0ResetStatisticsReq / VMMR0_DO_GVMM_RESET_STATISTICS request buffer. */
typedef GVMMRESETSTATISTICSSREQ *PGVMMRESETSTATISTICSSREQ;
GVMMR0DECL(int) GVMMR0ResetStatisticsReq(PVM pVM, PGVMMRESETSTATISTICSSREQ pReq);
/** @} */
RT_C_DECLS_END
#endif
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