VirtualBox

source: vbox/trunk/src/VBox/Runtime/r0drv/freebsd/memuserkernel-r0drv-freebsd.c@ 98187

Last change on this file since 98187 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.8 KB
Line 
1/* $Id: memuserkernel-r0drv-freebsd.c 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - User & Kernel Memory, Ring-0 Driver, FreeBSD.
4 */
5
6/*
7 * Copyright (C) 2009-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include "the-freebsd-kernel.h"
42
43#include <iprt/mem.h>
44#include <iprt/errcore.h>
45
46
47RTR0DECL(int) RTR0MemUserCopyFrom(void *pvDst, RTR3PTR R3PtrSrc, size_t cb)
48{
49 int rc = copyin((const void *)R3PtrSrc, pvDst, cb);
50 if (RT_LIKELY(rc == 0))
51 return VINF_SUCCESS;
52 return VERR_ACCESS_DENIED;
53}
54
55
56RTR0DECL(int) RTR0MemUserCopyTo(RTR3PTR R3PtrDst, void const *pvSrc, size_t cb)
57{
58 int rc = copyout(pvSrc, (void *)R3PtrDst, cb);
59 if (RT_LIKELY(rc == 0))
60 return VINF_SUCCESS;
61 return VERR_ACCESS_DENIED;
62}
63
64
65RTR0DECL(bool) RTR0MemUserIsValidAddr(RTR3PTR R3Ptr)
66{
67 return R3Ptr < VM_MAXUSER_ADDRESS;
68}
69
70
71RTR0DECL(bool) RTR0MemKernelIsValidAddr(void *pv)
72{
73 return (uintptr_t)pv >= VM_MAXUSER_ADDRESS;
74}
75
76
77RTR0DECL(bool) RTR0MemAreKrnlAndUsrDifferent(void)
78{
79 return true;
80}
81
82
83RTR0DECL(int) RTR0MemKernelCopyFrom(void *pvDst, void const *pvSrc, size_t cb)
84{
85 return VERR_NOT_SUPPORTED;
86}
87
88
89RTR0DECL(int) RTR0MemKernelCopyTo(void *pvDst, void const *pvSrc, size_t cb)
90{
91 return VERR_NOT_SUPPORTED;
92}
93
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