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tss.h (719) tss.h (778)
1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * from: @(#)tss.h 5.4 (Berkeley) 1/18/91
1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * from: @(#)tss.h 5.4 (Berkeley) 1/18/91
37 * $Id: tss.h,v 1.2 1993/10/16 14:39:38 rgrimes Exp $
37 * $Id: tss.h,v 1.3 1993/11/07 17:43:16 wollman Exp $
38 */
39
40#ifndef _MACHINE_TSS_H_
41#define _MACHINE_TSS_H_ 1
42
43/*
44 * Intel 386 Context Data Type
45 */
46
47struct i386tss {
48 int tss_link; /* actually 16 bits: top 16 bits must be zero */
49 int tss_esp0; /* kernel stack pointer priviledge level 0 */
50#define tss_ksp tss_esp0
51 int tss_ss0; /* actually 16 bits: top 16 bits must be zero */
52 int tss_esp1; /* kernel stack pointer priviledge level 1 */
53 int tss_ss1; /* actually 16 bits: top 16 bits must be zero */
54 int tss_esp2; /* kernel stack pointer priviledge level 2 */
55 int tss_ss2; /* actually 16 bits: top 16 bits must be zero */
38 */
39
40#ifndef _MACHINE_TSS_H_
41#define _MACHINE_TSS_H_ 1
42
43/*
44 * Intel 386 Context Data Type
45 */
46
47struct i386tss {
48 int tss_link; /* actually 16 bits: top 16 bits must be zero */
49 int tss_esp0; /* kernel stack pointer priviledge level 0 */
50#define tss_ksp tss_esp0
51 int tss_ss0; /* actually 16 bits: top 16 bits must be zero */
52 int tss_esp1; /* kernel stack pointer priviledge level 1 */
53 int tss_ss1; /* actually 16 bits: top 16 bits must be zero */
54 int tss_esp2; /* kernel stack pointer priviledge level 2 */
55 int tss_ss2; /* actually 16 bits: top 16 bits must be zero */
56 /* struct ptd *tss_cr3; /* page table directory */
57 int tss_cr3; /* page table directory */
58#define tss_ptd tss_cr3
59 int tss_eip; /* program counter */
60#define tss_pc tss_eip
61 int tss_eflags; /* program status longword */
62#define tss_psl tss_eflags
63 int tss_eax;
64 int tss_ecx;
65 int tss_edx;
66 int tss_ebx;
67 int tss_esp; /* user stack pointer */
68#define tss_usp tss_esp
69 int tss_ebp; /* user frame pointer */
70#define tss_fp tss_ebp
71 int tss_esi;
72 int tss_edi;
73 int tss_es; /* actually 16 bits: top 16 bits must be zero */
74 int tss_cs; /* actually 16 bits: top 16 bits must be zero */
75 int tss_ss; /* actually 16 bits: top 16 bits must be zero */
76 int tss_ds; /* actually 16 bits: top 16 bits must be zero */
77 int tss_fs; /* actually 16 bits: top 16 bits must be zero */
78 int tss_gs; /* actually 16 bits: top 16 bits must be zero */
79 int tss_ldt; /* actually 16 bits: top 16 bits must be zero */
80 int tss_ioopt; /* options & io offset bitmap: currently zero */
81 /* XXX unimplemented .. i/o permission bitmap */
82};
83#endif /* _MACHINE_TSS_H_ */
56 int tss_cr3; /* page table directory */
57#define tss_ptd tss_cr3
58 int tss_eip; /* program counter */
59#define tss_pc tss_eip
60 int tss_eflags; /* program status longword */
61#define tss_psl tss_eflags
62 int tss_eax;
63 int tss_ecx;
64 int tss_edx;
65 int tss_ebx;
66 int tss_esp; /* user stack pointer */
67#define tss_usp tss_esp
68 int tss_ebp; /* user frame pointer */
69#define tss_fp tss_ebp
70 int tss_esi;
71 int tss_edi;
72 int tss_es; /* actually 16 bits: top 16 bits must be zero */
73 int tss_cs; /* actually 16 bits: top 16 bits must be zero */
74 int tss_ss; /* actually 16 bits: top 16 bits must be zero */
75 int tss_ds; /* actually 16 bits: top 16 bits must be zero */
76 int tss_fs; /* actually 16 bits: top 16 bits must be zero */
77 int tss_gs; /* actually 16 bits: top 16 bits must be zero */
78 int tss_ldt; /* actually 16 bits: top 16 bits must be zero */
79 int tss_ioopt; /* options & io offset bitmap: currently zero */
80 /* XXX unimplemented .. i/o permission bitmap */
81};
82#endif /* _MACHINE_TSS_H_ */