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;
+    }
+}
+