1/*	$NetBSD: pcb.h,v 1.32 2020/03/17 17:18:49 maxv Exp $	*/
2
3/*
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/*
33 * Copyright (c) 1990 The Regents of the University of California.
34 * All rights reserved.
35 *
36 * This code is derived from software contributed to Berkeley by
37 * William Jolitz.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 * 1. Redistributions of source code must retain the above copyright
43 *    notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 *    notice, this list of conditions and the following disclaimer in the
46 *    documentation and/or other materials provided with the distribution.
47 * 3. Neither the name of the University nor the names of its contributors
48 *    may be used to endorse or promote products derived from this software
49 *    without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61 * SUCH DAMAGE.
62 *
63 *	@(#)pcb.h	5.10 (Berkeley) 5/12/91
64 */
65
66/*
67 * XXXfvdl these copyrights don't really match anymore
68 */
69
70#ifndef _AMD64_PCB_H_
71#define _AMD64_PCB_H_
72
73#ifdef __x86_64__
74
75#include <x86/cpu_extended_state.h>
76#include <amd64/reg.h>
77
78#define	NIOPORTS	1024		/* # of ports we allow to be mapped */
79
80/*
81 * IMPORTANT NOTE: this structure, including the variable-sized FPU state at
82 * the end, must fit within one page.
83 */
84struct pcb {
85	int	  pcb_flags;
86#define	PCB_COMPAT32	0x01
87#define	PCB_DBREGS	0x02
88	u_int	  pcb_cr0;		/* saved image of CR0 */
89	uint64_t pcb_rsp0;
90	uint64_t pcb_cr2;		/* page fault address (CR2) */
91	uint64_t pcb_cr3;
92	uint64_t pcb_rsp;
93	uint64_t pcb_rbp;
94	void     *pcb_onfault;		/* copyin/out fault recovery */
95	uint64_t  pcb_fs;
96	uint64_t  pcb_gs;
97	struct dbreg *pcb_dbregs;
98	uint16_t pcb_fpu_dflt_cw;
99	int pcb_iopl;
100
101	uint32_t pcb_unused[8];		/* unused */
102
103	union savefpu	pcb_savefpu __aligned(64); /* floating point state */
104	/* **** DO NOT ADD ANYTHING HERE **** */
105};
106#ifndef __lint__
107__CTASSERT(sizeof(struct pcb) - sizeof (union savefpu) ==  128);
108#endif
109
110#else	/*	__x86_64__	*/
111
112#include <i386/pcb.h>
113
114#endif	/*	__x86_64__	*/
115
116#endif /* _AMD64_PCB_H_ */
117