/* $Id: mp-r0drv.h 76585 2019-01-01 06:31:29Z vboxsync $ */ /** @file * IPRT - Multiprocessor, Ring-0 Driver, Internal Header. */ /* * Copyright (C) 2008-2019 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 IPRT_INCLUDED_SRC_r0drv_mp_r0drv_h #define IPRT_INCLUDED_SRC_r0drv_mp_r0drv_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include RT_C_DECLS_BEGIN /** * MP callback * * @param idCpu CPU id * @param pvUser1 The first user argument. * @param pvUser2 The second user argument. */ typedef DECLCALLBACK(void) FNMPWORKER(RTCPUID idCpu, void *pvUser1, void *pvUser2); /** Pointer to a FNMPWORKER(). */ typedef FNMPWORKER *PFNMPWORKER; /** * RTMpOn* argument packet used by the host specific callback * wrapper functions. */ typedef struct RTMPARGS { PFNMPWORKER pfnWorker; void *pvUser1; void *pvUser2; RTCPUID idCpu; RTCPUID idCpu2; uint32_t volatile cHits; #ifdef RT_OS_WINDOWS /** Turns out that KeFlushQueuedDpcs doesn't necessarily wait till all * callbacks are done. So, do reference counting to make sure we don't free * this structure befor all CPUs have completely handled their requests. */ int32_t volatile cRefs; #endif #ifdef RT_OS_LINUX PRTCPUSET pWorkerSet; #endif } RTMPARGS; /** Pointer to a RTMpOn* argument packet. */ typedef RTMPARGS *PRTMPARGS; /* Called from initterm-r0drv.cpp: */ DECLHIDDEN(int) rtR0MpNotificationInit(void); DECLHIDDEN(void) rtR0MpNotificationTerm(void); /* The following is only relevant when using mpnotifcation-r0drv.cpp: */ DECLHIDDEN(int) rtR0MpNotificationNativeInit(void); DECLHIDDEN(void) rtR0MpNotificationNativeTerm(void); DECLHIDDEN(void) rtMpNotificationDoCallbacks(RTMPEVENT enmEvent, RTCPUID idCpu); RT_C_DECLS_END #endif /* !IPRT_INCLUDED_SRC_r0drv_mp_r0drv_h */