1 | /* $NetBSD: tss.h,v 1.5 2008/10/26 00:08:15 mrg Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2001 Wasabi Systems, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * Written by Frank van der Linden for Wasabi Systems, Inc. |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. |
14 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * notice, this list of conditions and the following disclaimer in the |
16 | * documentation and/or other materials provided with the distribution. |
17 | * 3. All advertising materials mentioning features or use of this software |
18 | * must display the following acknowledgement: |
19 | * This product includes software developed for the NetBSD Project by |
20 | * Wasabi Systems, Inc. |
21 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
22 | * or promote products derived from this software without specific prior |
23 | * written permission. |
24 | * |
25 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
27 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
29 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
35 | * POSSIBILITY OF SUCH DAMAGE. |
36 | */ |
37 | |
38 | #ifndef _AMD64_TSS_H_ |
39 | #define _AMD64_TSS_H_ |
40 | |
41 | #ifdef __x86_64__ |
42 | |
43 | /* |
44 | * TSS structure. Since TSS hw switching is not supported in long |
45 | * mode, this is mainly there for the I/O permission map in |
46 | * normal processes. |
47 | */ |
48 | |
49 | struct x86_64_tss { |
50 | uint32_t tss_reserved1; |
51 | uint64_t tss_rsp0; |
52 | uint64_t tss_rsp1; |
53 | uint64_t tss_rsp3; |
54 | uint32_t tss_reserved2; |
55 | uint32_t tss_reserved3; |
56 | uint64_t tss_ist[7]; |
57 | uint32_t tss_reserved4; |
58 | uint32_t tss_reserved5; |
59 | uint32_t tss_iobase; |
60 | } __packed; |
61 | |
62 | /* |
63 | * I/O bitmap offset beyond TSS's segment limit means no bitmaps. |
64 | * (i.e. any I/O attempt generates an exception.) |
65 | */ |
66 | #define IOMAP_INVALOFF 0xffff |
67 | |
68 | #else /* __x86_64__ */ |
69 | |
70 | #include <i386/tss.h> |
71 | |
72 | #endif /* __x86_64__ */ |
73 | |
74 | #endif /* _AMD64_TSS_H_ */ |
75 | |