129 lines
5.2 KiB
C
129 lines
5.2 KiB
C
/* $NetBSD: pcb.h,v 1.30 2002/02/16 16:22:03 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)pcb.h 5.10 (Berkeley) 5/12/91
|
|
*/
|
|
|
|
/*
|
|
* Intel 386 process control block
|
|
*/
|
|
|
|
#ifndef _I386_PCB_H_
|
|
#define _I386_PCB_H_
|
|
|
|
#include <sys/signal.h>
|
|
|
|
#include <machine/segments.h>
|
|
#include <machine/tss.h>
|
|
#include <machine/npx.h>
|
|
#include <machine/sysarch.h>
|
|
|
|
#define NIOPORTS 1024 /* # of ports we allow to be mapped */
|
|
|
|
struct pcb {
|
|
struct i386tss pcb_tss;
|
|
#define pcb_cr3 pcb_tss.tss_cr3
|
|
#define pcb_esp pcb_tss.tss_esp
|
|
#define pcb_ebp pcb_tss.tss_ebp
|
|
#define pcb_ldt_sel pcb_tss.tss_ldt
|
|
int pcb_cr0; /* saved image of CR0 */
|
|
int pcb_cr2; /* page fault address (CR2) */
|
|
union savefpu pcb_savefpu; /* floating point state for FPU */
|
|
struct emcsts pcb_saveemc; /* Cyrix EMC state */
|
|
/*
|
|
* Software pcb (extension)
|
|
*/
|
|
int pcb_flags;
|
|
#define PCB_USER_LDT 0x01 /* has user-set LDT */
|
|
caddr_t pcb_onfault; /* copyin/out fault recovery */
|
|
int vm86_eflags; /* virtual eflags for vm86 mode */
|
|
int vm86_flagmask; /* flag mask for vm86 mode */
|
|
void *vm86_userp; /* XXX performance hack */
|
|
u_long pcb_iomap[NIOPORTS/32]; /* I/O bitmap */
|
|
struct pmap *pcb_pmap; /* back pointer to our pmap */
|
|
};
|
|
|
|
/*
|
|
* The pcb is augmented with machine-dependent additional data for
|
|
* core dumps. For the i386, there is nothing to add.
|
|
*/
|
|
struct md_coredump {
|
|
long md_pad[8];
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
struct pcb *curpcb; /* our current running pcb */
|
|
#endif
|
|
|
|
#endif /* _I386_PCB_H_ */
|