1 files changed, 148 insertions, 0 deletions
diff --git a/src/VBox/VMM/testcase/tstGlobalConfig.cpp b/src/VBox/VMM/testcase/tstGlobalConfig.cpp
new file mode 100644
index 00000000..6f7039be
--- /dev/null
+++ b/src/VBox/VMM/testcase/tstGlobalConfig.cpp
@@ -0,0 +1,148 @@
+/* $Id: tstGlobalConfig.cpp $ */
+/** @file
+ * Ring-3 Management program for the GCFGM mock-up.
+ */
+
+/*
+ * Copyright (C) 2007-2023 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>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <VBox/vmm/vmm.h>
+#include <iprt/errcore.h>
+#include <iprt/assert.h>
+#include <iprt/initterm.h>
+#include <iprt/stream.h>
+#include <iprt/string.h>
+
+
+/**
+ * Prints the usage and returns 1.
+ * @return 1
+ */
+static int Usage(void)
+{
+    RTPrintf("usage: tstGlobalConfig <value-name> [new value]\n");
+    return 1;
+}
+
+
+/**
+ *  Entry point.
+ */
+extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
+{
+    RT_NOREF1(envp);
+    RTR3InitExe(argc, &argv, 0);
+
+    /*
+     * Parse args, building the request as we do so.
+     */
+    if (argc <= 1)
+        return Usage();
+    if (argc > 3)
+    {
+        RTPrintf("syntax error: too many arguments\n");
+        Usage();
+        return 1;
+    }
+
+    VMMR0OPERATION enmOp = VMMR0_DO_GCFGM_QUERY_VALUE;
+    GCFGMVALUEREQ Req;
+    memset(&Req, 0, sizeof(Req));
+    Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
+    Req.Hdr.cbReq = sizeof(Req);
+
+    /* arg[1] = szName */
+    size_t cch = strlen(argv[1]);
+    if (cch < 2 || argv[1][0] != '/')
+    {
+        RTPrintf("syntax error: malformed name '%s'\n", argv[1]);
+        return 1;
+    }
+    if (cch >= sizeof(Req.szName))
+    {
+        RTPrintf("syntax error: the name '%s' is too long. (max %zu chars)\n", argv[1], sizeof(Req.szName) - 1);
+        return 1;
+    }
+    memcpy(&Req.szName[0], argv[1], cch + 1);
+
+    /* argv[2] = u64SetValue; optional */
+    if (argc == 3)
+    {
+        char *pszNext = NULL;
+        int rc = RTStrToUInt64Ex(argv[2], &pszNext, 0, &Req.u64Value);
+        if (RT_FAILURE(rc) || *pszNext)
+        {
+            RTPrintf("syntax error: '%s' didn't convert successfully to a number. (%Rrc,'%s')\n", argv[2], rc, pszNext);
+            return 1;
+        }
+        enmOp = VMMR0_DO_GCFGM_SET_VALUE;
+    }
+
+    /*
+     * Open the session, load ring-0 and issue the request.
+     */
+    PSUPDRVSESSION pSession;
+    int rc = SUPR3Init(&pSession);
+    if (RT_FAILURE(rc))
+    {
+        RTPrintf("tstGlobalConfig: SUPR3Init -> %Rrc\n", rc);
+        return 1;
+    }
+
+    rc = SUPR3LoadVMM("./VMMR0.r0", NULL /*pErrInfo*/);
+    if (RT_SUCCESS(rc))
+    {
+        Req.pSession = pSession;
+        rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, enmOp, 0, &Req.Hdr);
+        if (RT_SUCCESS(rc))
+        {
+            if (enmOp == VMMR0_DO_GCFGM_QUERY_VALUE)
+                RTPrintf("%s = %RU64 (%#RX64)\n", Req.szName, Req.u64Value, Req.u64Value);
+            else
+                RTPrintf("Successfully set %s = %RU64 (%#RX64)\n", Req.szName, Req.u64Value, Req.u64Value);
+        }
+        else if (enmOp == VMMR0_DO_GCFGM_QUERY_VALUE)
+            RTPrintf("error: Failed to query '%s', rc=%Rrc\n", Req.szName, rc);
+        else
+            RTPrintf("error: Failed to set '%s' to %RU64, rc=%Rrc\n", Req.szName, Req.u64Value, rc);
+
+    }
+    SUPR3Term(false /*fForced*/);
+
+    return RT_FAILURE(rc) ? 1 : 0;
+}
+
+
+#if !defined(VBOX_WITH_HARDENING) || !defined(RT_OS_WINDOWS)
+/**
+ * Main entry point.
+ */
+int main(int argc, char **argv, char **envp)
+{
+    return TrustedMain(argc, argv, envp);
+}
+#endif
+