FreeBSD/Linux Kernel Cross Reference
sys/i386/include/pcb_ext.h

     /*-
      * Copyright (c) 1997 Jonathan Lemon
      * All rights reserved.
      *
      * 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 AUTHOR 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 AUTHOR 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.
     *
     * $FreeBSD: releng/11.0/sys/i386/include/pcb_ext.h 150173 2005-09-15 17:30:08Z jhb $
     */
    
    #ifndef _I386_PCB_EXT_H_
    #define _I386_PCB_EXT_H_
    
    /*
     * Extension to the 386 process control block
     */
    #include <machine/tss.h>
    #include <machine/vm86.h>
    #include <machine/segments.h>
    
    struct pcb_ext {
            struct  segment_descriptor ext_tssd;    /* tss descriptor */
            struct  i386tss ext_tss;        /* per-process i386tss */
            caddr_t ext_iomap;              /* i/o permission bitmap */
            struct  vm86_kernel ext_vm86;   /* vm86 area */
    };
    
    #ifdef _KERNEL
    extern int private_tss;
    
    int i386_extend_pcb(struct thread *);
    
    #endif
    
    #endif /* _I386_PCB_EXT_H_ */

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