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xen_shm.h revision 1.2 
      1  1.2  bouyer /*      $NetBSD: xen_shm.h,v 1.2 2005/03/09 22:39:20 bouyer Exp $      */
      2  1.2  bouyer 
      3  1.2  bouyer /*
      4  1.2  bouyer  * Copyright (c) 2005 Manuel Bouyer.
      5  1.2  bouyer  *
      6  1.2  bouyer  * Redistribution and use in source and binary forms, with or without
      7  1.2  bouyer  * modification, are permitted provided that the following conditions
      8  1.2  bouyer  * are met:
      9  1.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     10  1.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     11  1.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     12  1.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     13  1.2  bouyer  *    documentation and/or other materials provided with the distribution.
     14  1.2  bouyer  * 3. All advertising materials mentioning features or use of this software
     15  1.2  bouyer  *    must display the following acknowledgement:
     16  1.2  bouyer  *      This product includes software developed by Manuel Bouyer.
     17  1.2  bouyer  * 4. The name of the author may not be used to endorse or promote products
     18  1.2  bouyer  *    derived from this software without specific prior written permission.
     19  1.2  bouyer  *
     20  1.2  bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  1.2  bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  1.2  bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  1.2  bouyer  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  1.2  bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  1.2  bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  1.2  bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  1.2  bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  1.2  bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  1.2  bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  1.2  bouyer  *
     31  1.2  bouyer  */
     32  1.2  bouyer 
     33  1.2  bouyer /*
     34  1.2  bouyer  * Helper routines for the backend drivers. This implement the necessary
     35  1.2  bouyer  * functions to map a bunch of pages from foreing domains in our kernel VM
     36  1.2  bouyer  * space, do I/O to it, and unmap it.
     37  1.2  bouyer  */
     38  1.2  bouyer 
     39  1.2  bouyer int  xen_shm_map(paddr_t *, int, int, vaddr_t *, int);
     40  1.2  bouyer void xen_shm_unmap(vaddr_t, paddr_t *, int, int);
     41  1.2  bouyer int xen_shm_callback(int (*)(void *), void *);
     42  1.2  bouyer int  xen_shm_vaddr2ma(vaddr_t, paddr_t *);
     43  1.2  bouyer 
     44  1.2  bouyer /* flags for xen_shm_map() */
     45  1.2  bouyer #define XSHM_CALLBACK 0x01	/* called from a callback */
     46