1/*	$NetBSD: proc.h,v 1.48 2020/06/13 23:58:52 ad Exp $	*/
 2
 3/*
 4 * Copyright (c) 1991 Regents of the University of California.
 5 * All rights reserved.
 6 *
 7 * Redistribution and use in source and binary forms, with or without
 8 * modification, are permitted provided that the following conditions
 9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)proc.h	7.1 (Berkeley) 5/15/91
32 */
33
34#ifndef _I386_PROC_H_
35#define _I386_PROC_H_
36
37#include <machine/frame.h>
38#include <machine/pcb.h>
39
40/*
41 * Machine-dependent part of the lwp structure for i386.
42 */
43struct pmap;
44struct vm_page;
45
46#define	MDL_FPU_IN_CPU		0x0020	/* the FPU state is in the CPU */
47
48struct mdlwp {
49	volatile uint64_t md_tsc;	/* last TSC reading */
50	struct	trapframe *md_regs;	/* registers on current frame */
51	int	md_flags;		/* machine-dependent flags */
52	volatile int md_astpending;	/* AST pending for this process */
53};
54
55/* md_flags */
56#define	MDL_IOPL		0x0002	/* XEN: i/o privilege */
57
58struct mdproc {
59	int	md_flags;
60	void	(*md_syscall)(struct trapframe *);
61					/* Syscall handling function */
62};
63
64/* md_flags */
65#define MDP_USEDMTRR	0x0002	/* has set volatile MTRRs */
66
67#endif /* _I386_PROC_H_ */