LCOM1920-T02G10

/*        $NetBSD: pcb.h,v 1.54 2014/04/21 19:13:22 christos Exp $        */

/*-

 * Copyright (c) 1998, 2009 The NetBSD Foundation, Inc.

 * All rights reserved.

 *

 * This code is derived from software contributed to The NetBSD Foundation

 * by Charles M. Hannum, and by Andrew Doran.

 *

 * 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.

 *

 * 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. 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_

#if defined(_KERNEL_OPT)

#include "opt_multiprocessor.h"

#endif

#include <machine/segments.h>

#include <x86/cpu_extended_state.h>

struct pcb {

        int        pcb_esp0;                /* ring0 esp */

        int        pcb_esp;                /* kernel esp */

        int        pcb_ebp;                /* kernel ebp */

        int        pcb_cr0;                /* saved image of CR0 */

        int        pcb_cr2;                /* page fault address (CR2) */

        int        pcb_cr3;                /* page directory pointer */

        int        pcb_iopl;                /* i/o privilege level */

        struct segment_descriptor pcb_fsd;        /* %fs descriptor */

        struct segment_descriptor pcb_gsd;         /* %gs descriptor */

        void         *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 */

        char        *pcb_iomap;                /* I/O permission bitmap */

        int        not_used[15];

        /* floating point state */

        struct cpu_info        *pcb_fpcpu;        /* cpu holding our fp state. */

        union savefpu        pcb_savefpu __aligned(64);

        /* **** DO NOT ADD ANYTHING HERE **** */

};

#ifndef __lint__

/* This doesn't really matter, but there is a lot of implied padding */

__CTASSERT(sizeof(struct pcb) - sizeof (union savefpu) == 128);

#endif

#endif /* _I386_PCB_H_ */