diff options
Diffstat (limited to 'src/VBox/Runtime/r0drv/mp-r0drv.h')
| -rw-r--r-- | src/VBox/Runtime/r0drv/mp-r0drv.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r0drv/mp-r0drv.h b/src/VBox/Runtime/r0drv/mp-r0drv.h new file mode 100644 index 00000000..219a0e6a --- /dev/null +++ b/src/VBox/Runtime/r0drv/mp-r0drv.h @@ -0,0 +1,95 @@ +/* $Id: mp-r0drv.h $ */ +/** @file + * IPRT - Multiprocessor, Ring-0 Driver, Internal Header. + */ + +/* + * Copyright (C) 2008-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox 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. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#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 <iprt/mp.h> + +RT_C_DECLS_BEGIN + +/** + * MP callback + * + * @param idCpu CPU id + * @param pvUser1 The first user argument. + * @param pvUser2 The second user argument. + */ +typedef DECLCALLBACKTYPE(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 */ + |