sys/sys/vmspace.h

   1 /*
   2  * Copyright (c) 2006 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   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  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sys/sys/vmspace.h,v 1.6 2007/01/08 03:33:43 dillon Exp $
  35  */
  36 /*
  37  * VMSPACE - Virtualized Environment control from user mode.  The VMSPACE
  38  * subsystem allows a user mode application, such as a user-mode DragonFly
  39  * kernel, to create, manipulate, and execute code in a separate VM context.
  40  */
  41
  42 #ifndef _SYS_VMSPACE_H_
  43 #define _SYS_VMSPACE_H_
  44
  45 #ifndef _SYS_TYPES_H_
  46 #include <sys/types.h>
  47 #endif
  48
  49 struct trapframe;
  50 struct vextframe;
  51
  52 #define VMSPACE_CTL_RUN         1
  53
  54 #define VMSPACE_PAGEFAULT       1
  55 #define VMSPACE_TIMEOUT         2
  56 #define VMSPACE_TRAP            3
  57 #define VMSPACE_SYSCALL         4
  58
  59 int vmspace_create(void *, int, void *);
  60 int vmspace_destroy(void *);
  61 int vmspace_ctl (void *, int, struct trapframe *, struct vextframe *);
  62
  63 void *vmspace_mmap(void *, void *, size_t, int, int, int, off_t);
  64 int vmspace_munmap(void *, void *, size_t);
  65 int vmspace_mcontrol(void *, void *, size_t, int, off_t);
  66 ssize_t vmspace_pread(void *, void *, size_t, int, off_t);
  67 ssize_t vmspace_pwrite(void *, const void *, size_t, int, off_t);
  68
  69 #endif
  70