pcb.h revision 129309 
167Ssundar/*-
267Ssundar * Copyright (c) 2003 Peter Wemm.
3970Sattila * Copyright (c) 1990 The Regents of the University of California.
467Ssundar * All rights reserved.
567Ssundar *
667Ssundar * This code is derived from software contributed to Berkeley by
7970Sattila * William Jolitz.
867Ssundar *
967Ssundar * Redistribution and use in source and binary forms, with or without
10970Sattila * modification, are permitted provided that the following conditions
1167Ssundar * are met:
1267Ssundar * 1. Redistributions of source code must retain the above copyright
1367Ssundar *    notice, this list of conditions and the following disclaimer.
14970Sattila * 2. Redistributions in binary form must reproduce the above copyright
1567Ssundar *    notice, this list of conditions and the following disclaimer in the
1667Ssundar *    documentation and/or other materials provided with the distribution.
1767Ssundar * 4. Neither the name of the University nor the names of its contributors
18970Sattila *    may be used to endorse or promote products derived from this software
1967Ssundar *    without specific prior written permission.
2067Ssundar *
2167Ssundar * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2267Ssundar * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2367Ssundar * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2467Ssundar * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2567Ssundar * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2667Ssundar * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2767Ssundar * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2867Ssundar * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2967Ssundar * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
3067Ssundar * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3167Ssundar * SUCH DAMAGE.
3267Ssundar *
3367Ssundar *	from: @(#)pcb.h	5.10 (Berkeley) 5/12/91
3467Ssundar * $FreeBSD: head/sys/amd64/include/pcb.h 129309 2004-05-16 22:43:57Z peter $
35970Sattila */
3667Ssundar
3767Ssundar#ifndef _AMD64_PCB_H_
3867Ssundar#define _AMD64_PCB_H_
3967Ssundar
4067Ssundar/*
4167Ssundar * AMD64 process control block
4267Ssundar */
4367Ssundar#include <machine/fpu.h>
4467Ssundar
4567Ssundarstruct pcb {
46	register_t	padxx[8];
47	register_t	pcb_cr3;
48	register_t	pcb_r15;
49	register_t	pcb_r14;
50	register_t	pcb_r13;
51	register_t	pcb_r12;
52	register_t	pcb_rbp;
53	register_t	pcb_rsp;
54	register_t	pcb_rbx;
55	register_t	pcb_rip;
56	register_t	pcb_rflags;
57	register_t	pcb_fsbase;
58	register_t	pcb_gsbase;
59	u_int32_t	pcb_ds;
60	u_int32_t	pcb_es;
61	u_int32_t	pcb_fs;
62	u_int32_t	pcb_gs;
63	u_int64_t	pcb_dr0;
64	u_int64_t	pcb_dr1;
65	u_int64_t	pcb_dr2;
66	u_int64_t	pcb_dr3;
67	u_int64_t	pcb_dr6;
68	u_int64_t	pcb_dr7;
69
70	struct	savefpu	pcb_save;
71	u_long	pcb_flags;
72#define	PCB_DBREGS	0x02	/* process using debug registers */
73#define	PCB_FPUINITDONE	0x08	/* fpu state is initialized */
74#define	PCB_32BIT	0x40	/* process has 32 bit context (segs etc) */
75#define	PCB_FULLCTX	0x80	/* full context restore on sysret */
76
77	caddr_t	pcb_onfault;	/* copyin/out fault recovery */
78};
79
80#ifdef _KERNEL
81void	savectx(struct pcb *);
82#endif
83
84#endif /* _AMD64_PCB_H_ */
85