memuserkernel-r0drv-linux.c revision 4a3597d414ee393ddb297fda90b7f16c95f672d9
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * IPRT - User & Kernel Memory, Ring-0 Driver, Linux.
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * Copyright (C) 2009 Sun Microsystems, Inc.
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * available from http://www.virtualbox.org. This file is free software;
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * you can redistribute it and/or modify it under the terms of the GNU
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * General Public License (GPL) as published by the Free Software
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * The contents of this file may alternatively be used under the terms
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * of the Common Development and Distribution License Version 1.0
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * VirtualBox OSE distribution, in which case the provisions of the
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * CDDL are applicable instead of those of the GPL.
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * You may elect to license modified versions of this file under the
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * terms and conditions of either the GPL or the CDDL or both.
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync * additional information or have any questions.
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync/*******************************************************************************
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync* Header Files *
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync*******************************************************************************/
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsyncRTR0DECL(int) RTR0MemUserCopyFrom(void *pvDst, RTR3PTR R3PtrSrc, size_t cb)
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync if (RT_LIKELY(copy_from_user(pvDst, (void *)R3PtrSrc, cb) == 0))
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsyncRTR0DECL(int) RTR0MemUserCopyTo(RTR3PTR R3PtrDst, void const *pvSrc, size_t cb)
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync if (RT_LIKELY(copy_to_user((void *)R3PtrDst, pvSrc, cb) == 0))
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsyncRTR0DECL(bool) RTR0MemUserIsValidAddr(RTR3PTR R3Ptr)
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync /* Couldn't find a straight forward way of doing this... */
b7ec8f4ea9e7f5afb06094384fa4864ccd8db63dvboxsync return true; /* ?? */
522c8eb2dc41dc85adeb8343aa7c0d799335fcafvboxsync#if defined(RT_ARCH_X86) && defined(CONFIG_X86_HIGH_ENTRY) /* ?? */
522c8eb2dc41dc85adeb8343aa7c0d799335fcafvboxsync return false;
522c8eb2dc41dc85adeb8343aa7c0d799335fcafvboxsync return true;