| 1 | /* $Id: memuserkernel-r0drv-freebsd.c 21282 2009-07-06 23:43:36Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - User & Kernel Memory, Ring-0 Driver, FreeBSD.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2009 Sun Microsystems, Inc.
|
|---|
| 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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 28 | * additional information or have any questions.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 |
|
|---|
| 32 | /*******************************************************************************
|
|---|
| 33 | * Header Files *
|
|---|
| 34 | *******************************************************************************/
|
|---|
| 35 | #include "the-freebsd-kernel.h"
|
|---|
| 36 |
|
|---|
| 37 | #include <iprt/mem.h>
|
|---|
| 38 | #include <iprt/err.h>
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 | RTR0DECL(int) RTR0MemUserCopyFrom(void *pvDst, RTR3PTR R3PtrSrc, size_t cb)
|
|---|
| 42 | {
|
|---|
| 43 | int rc = copyin((const user_addr_t)R3PtrSrc, pvDst, cb);
|
|---|
| 44 | if (RT_LIKELY(rc == 0))
|
|---|
| 45 | return VINF_SUCCESS;
|
|---|
| 46 | return VERR_ACCESS_DENIED;
|
|---|
| 47 | }
|
|---|
| 48 |
|
|---|
| 49 |
|
|---|
| 50 | RTR0DECL(int) RTR0MemUserCopyTo(RTR3PTR R3PtrDst, void const *pvSrc, size_t cb)
|
|---|
| 51 | {
|
|---|
| 52 | int rc = copyout(pvSrc, R3PtrDst, cb);
|
|---|
| 53 | if (RT_LIKELY(rc == 0))
|
|---|
| 54 | return VINF_SUCCESS;
|
|---|
| 55 | return VERR_ACCESS_DENIED;
|
|---|
| 56 | }
|
|---|
| 57 |
|
|---|
| 58 |
|
|---|
| 59 | RTR0DECL(bool) RTR0MemUserIsValidAddr(RTR3PTR R3Ptr)
|
|---|
| 60 | {
|
|---|
| 61 | return R3Ptr < VM_MAXUSER_ADDRESS;
|
|---|
| 62 | }
|
|---|
| 63 |
|
|---|
| 64 |
|
|---|
| 65 | RTR0DECL(bool) RTR0MemKernelIsValidAddr(void *pv)
|
|---|
| 66 | {
|
|---|
| 67 | return R3Ptr >= VM_MAXUSER_ADDRESS;
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 |
|
|---|
| 71 | RTR0DECL(bool) RTR0MemAreKernelAndUserRangesDifferent(void)
|
|---|
| 72 | {
|
|---|
| 73 | return true;
|
|---|
| 74 | }
|
|---|
| 75 |
|
|---|
