pcb_ext.h revision 333626 
1/*-
2 * Copyright (c) 1997 Jonathan Lemon
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/sys/i386/include/pcb_ext.h 333626 2018-05-15 11:25:10Z kib $
27 */
28
29#ifndef _I386_PCB_EXT_H_
30#define _I386_PCB_EXT_H_
31
32/*
33 * Extension to the 386 process control block
34 */
35#include <machine/tss.h>
36#include <machine/vm86.h>
37#include <machine/segments.h>
38
39struct pcb_ext {
40	struct 	segment_descriptor ext_tssd;	/* tss descriptor */
41	struct 	i386tss	ext_tss;	/* per-process i386tss */
42	caddr_t	ext_iomap;		/* i/o permission bitmap */
43	struct	vm86_kernel ext_vm86;	/* vm86 area */
44};
45
46#ifdef _KERNEL
47int i386_extend_pcb(struct thread *);
48#endif
49
50#endif /* _I386_PCB_EXT_H_ */
51