ubuntu/vbox/vboxsf/VMMDev.c

   1 /* $Id: VMMDev.cpp $ */
   2 /** @file
   3  * VBoxGuestLibR0 - VMMDev device related functions.
   4  */
   5
   6 /*
   7  * Copyright (C) 2006-2016 Oracle Corporation
   8  *
   9  * This file is part of VirtualBox Open Source Edition (OSE), as
  10  * available from http://www.virtualbox.org. This file is free software;
  11  * you can redistribute it and/or modify it under the terms of the GNU
  12  * General Public License (GPL) as published by the Free Software
  13  * Foundation, in version 2 as it comes in the "COPYING" file of the
  14  * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
  15  * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
  16  *
  17  * The contents of this file may alternatively be used under the terms
  18  * of the Common Development and Distribution License Version 1.0
  19  * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
  20  * VirtualBox OSE distribution, in which case the provisions of the
  21  * CDDL are applicable instead of those of the GPL.
  22  *
  23  * You may elect to license modified versions of this file under the
  24  * terms and conditions of either the GPL or the CDDL or both.
  25  */
  26
  27 #include "VBGLInternal.h"
  28
  29
  30 DECLVBGL(int) VbglQueryVMMDevMemory(VMMDevMemory **ppVMMDevMemory)
  31 {
  32     int rc = vbglR0Enter();
  33     if (RT_FAILURE(rc))
  34         return rc;
  35
  36     /* If the memory was not found, return an error. */
  37     if (!g_vbgldata.pVMMDevMemory)
  38         return VERR_NOT_SUPPORTED;
  39
  40     *ppVMMDevMemory = g_vbgldata.pVMMDevMemory;
  41     return rc;
  42 }
  43