1 files changed, 51 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibVMMDev.cpp b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibVMMDev.cpp
new file mode 100644
index 00000000..f8340152
--- /dev/null
+++ b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibVMMDev.cpp
@@ -0,0 +1,51 @@
+/* $Id: VBoxGuestR0LibVMMDev.cpp $ */
+/** @file
+ * VBoxGuestLibR0 - VMMDev device related functions.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "VBoxGuestR0LibInternal.h"
+
+
+DECLVBGL(int) VbglR0QueryVMMDevMemory(VMMDevMemory **ppVMMDevMemory)
+{
+    int rc = vbglR0Enter();
+    if (RT_FAILURE(rc))
+        return rc;
+
+    /* If the memory was not found, return an error. */
+    if (!g_vbgldata.pVMMDevMemory)
+        return VERR_NOT_SUPPORTED;
+
+    *ppVMMDevMemory = g_vbgldata.pVMMDevMemory;
+    return rc;
+}
+