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Diffstat (limited to '')
-rw-r--r-- | src/VBox/ValidationKit/utils/misc/loadgeneratorR0.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/utils/misc/loadgeneratorR0.cpp b/src/VBox/ValidationKit/utils/misc/loadgeneratorR0.cpp new file mode 100644 index 00000000..006e3db8 --- /dev/null +++ b/src/VBox/ValidationKit/utils/misc/loadgeneratorR0.cpp @@ -0,0 +1,101 @@ +/* $Id: loadgeneratorR0.cpp $ */ +/** @file + * Load Generator, Ring-0 Service. + */ + +/* + * 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 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/mp.h> +#include <VBox/sup.h> +#include <iprt/errcore.h> + + + + +/** + * Worker for loadgenR0Ipi. + */ +static DECLCALLBACK(void) loadgenR0IpiWorker(RTCPUID idCpu, void *pvUser1, void *pvUser2) +{ + NOREF(idCpu); + NOREF(pvUser1); + NOREF(pvUser2); +} + + +/** + * Generate broadcast inter processor interrupts (IPI), aka cross calls. + * + * @returns VBox status code. + * @param cIpis The number of IPIs to do. + */ +static int loadgenR0Ipi(uint64_t cIpis) +{ + if (cIpis > _1G || !cIpis) + return VERR_INVALID_PARAMETER; + + while (cIpis-- > 0) + { + int rc = RTMpOnAll(loadgenR0IpiWorker, NULL, NULL); + if (RT_FAILURE(rc)) + return rc; + } + return VINF_SUCCESS; +} + + +/** + * Service request handler entry point. + * + * @copydoc FNSUPR0SERVICEREQHANDLER + */ +extern "C" DECLEXPORT(int) LoadGenR0ServiceReqHandler(PSUPDRVSESSION pSession, uint32_t uOperation, + uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr) + +{ + switch (uOperation) + { + case 0: + if (pReqHdr) + return VERR_INVALID_PARAMETER; + return loadgenR0Ipi(u64Arg); + + default: + NOREF(pSession); + return VERR_NOT_SUPPORTED; + } +} + |