116 lines
4.5 KiB
C
116 lines
4.5 KiB
C
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/* $NetBSD: pcb.h,v 1.48 2010/04/23 16:07:33 joerg Exp $ */
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/*-
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* Copyright (c) 1998, 2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum, and by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)pcb.h 5.10 (Berkeley) 5/12/91
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*/
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/*
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* Intel 386 process control block
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*/
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#ifndef _I386_PCB_H_
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#define _I386_PCB_H_
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#if defined(_KERNEL_OPT)
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#include "opt_multiprocessor.h"
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#endif
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#include <sys/signal.h>
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#include <machine/segments.h>
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#include <machine/tss.h>
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#include <i386/npx.h>
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#include <i386/sysarch.h>
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struct pcb {
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int pcb_esp0; /* ring0 esp */
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int pcb_esp; /* kernel esp */
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int pcb_ebp; /* kernel ebp */
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int pcb_unused; /* unused */
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int pcb_cr0; /* saved image of CR0 */
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int pcb_cr2; /* page fault address (CR2) */
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int pcb_cr3; /* page directory pointer */
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int pcb_iopl; /* i/o privilege level */
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/* floating point state for FPU */
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union savefpu pcb_savefpu __aligned(16);
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struct segment_descriptor pcb_fsd; /* %fs descriptor */
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struct segment_descriptor pcb_gsd; /* %gs descriptor */
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void * pcb_onfault; /* copyin/out fault recovery */
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int vm86_eflags; /* virtual eflags for vm86 mode */
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int vm86_flagmask; /* flag mask for vm86 mode */
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void *vm86_userp; /* XXX performance hack */
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struct cpu_info *pcb_fpcpu; /* cpu holding our fp state. */
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char *pcb_iomap; /* I/O permission bitmap */
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};
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/*
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* The pcb is augmented with machine-dependent additional data for
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* core dumps. For the i386, there is nothing to add.
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*/
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struct md_coredump {
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long md_pad[8];
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};
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#endif /* _I386_PCB_H_ */
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