pcb.h revision 122296 
1/*-
2 * Copyright (c) 2003 Peter Wemm.
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
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 by the University of
20 *	California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 *    may be used to endorse or promote products derived from this software
23 *    without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 *	from: @(#)pcb.h	5.10 (Berkeley) 5/12/91
38 * $FreeBSD: head/sys/amd64/include/pcb.h 122296 2003-11-08 04:39:22Z peter $
39 */
40
41#ifndef _AMD64_PCB_H_
42#define _AMD64_PCB_H_
43
44/*
45 * AMD64 process control block
46 */
47#include <machine/fpu.h>
48
49struct pcb {
50	register_t	padxx[8];
51	register_t	pcb_cr3;
52	register_t	pcb_r15;
53	register_t	pcb_r14;
54	register_t	pcb_r13;
55	register_t	pcb_r12;
56	register_t	pcb_rbp;
57	register_t	pcb_rsp;
58	register_t	pcb_rbx;
59	register_t	pcb_rip;
60	register_t	pcb_rflags;
61	register_t	pcb_fsbase;
62	register_t	pcb_gsbase;
63	u_int32_t	pcb_ds;
64	u_int32_t	pcb_es;
65	u_int32_t	pcb_fs;
66	u_int32_t	pcb_gs;
67
68	struct	savefpu	pcb_save;
69	u_long	pcb_flags;
70#define	PCB_FPUINITDONE	0x01	/* fpu state is initialized */
71#define	PCB_FULLCTX	0x02	/* full context restore on sysret */
72
73	caddr_t	pcb_onfault;	/* copyin/out fault recovery */
74};
75
76#ifdef _KERNEL
77void	savectx(struct pcb *);
78#endif
79
80#endif /* _AMD64_PCB_H_ */
81