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xenio.h revision 1.2 
      1 /*	$NetBSD: xenio.h,v 1.2 2005/03/09 22:39:20 bouyer Exp $	*/
      2 
      3 /******************************************************************************
      4  * privcmd.h
      5  *
      6  * Copyright (c) 2003-2004, K A Fraser
      7  *
      8  * This file may be distributed separately from the Linux kernel, or
      9  * incorporated into other software packages, subject to the following license:
     10  *
     11  * Permission is hereby granted, free of charge, to any person obtaining a copy
     12  * of this source file (the "Software"), to deal in the Software without
     13  * restriction, including without limitation the rights to use, copy, modify,
     14  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
     15  * and to permit persons to whom the Software is furnished to do so, subject to
     16  * the following conditions:
     17  *
     18  * The above copyright notice and this permission notice shall be included in
     19  * all copies or substantial portions of the Software.
     20  *
     21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     24  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     26  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     27  * IN THE SOFTWARE.
     28  */
     29 
     30 #ifndef __PRIVCMD_H__
     31 #define __PRIVCMD_H__
     32 
     33 /* Interface to /proc/xen/privcmd */
     34 
     35 typedef struct privcmd_hypercall
     36 {
     37     unsigned long op;
     38     unsigned long arg[5];
     39 } privcmd_hypercall_t;
     40 
     41 typedef struct privcmd_mmap_entry {
     42     unsigned long va;
     43     unsigned long mfn;
     44     unsigned long npages;
     45 } privcmd_mmap_entry_t;
     46 
     47 typedef struct privcmd_mmap {
     48     int num;
     49     domid_t dom; /* target domain */
     50     privcmd_mmap_entry_t *entry;
     51 } privcmd_mmap_t;
     52 
     53 typedef struct privcmd_mmapbatch {
     54     int num;     /* number of pages to populate */
     55     domid_t dom; /* target domain */
     56     unsigned long addr;  /* virtual address */
     57     unsigned long *arr; /* array of mfns - top nibble set on err */
     58 } privcmd_mmapbatch_t;
     59 
     60 typedef struct privcmd_blkmsg
     61 {
     62     unsigned long op;
     63     void         *buf;
     64     int           buf_size;
     65 } privcmd_blkmsg_t;
     66 
     67 /*
     68  * @cmd: IOCTL_PRIVCMD_HYPERCALL
     69  * @arg: &privcmd_hypercall_t
     70  * Return: Value returned from execution of the specified hypercall.
     71  */
     72 #define IOCTL_PRIVCMD_HYPERCALL         \
     73     _IOWR('P', 0, privcmd_hypercall_t)
     74 
     75 /*
     76  * @cmd: IOCTL_PRIVCMD_INITDOMAIN_EVTCHN
     77  * @arg: n/a
     78  * Return: Port associated with domain-controller end of control event channel
     79  *         for the initial domain.
     80  */
     81 #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN \
     82     _IO('P', 1)
     83 
     84 #define IOCTL_PRIVCMD_MMAP             \
     85     _IOW('P', 2, privcmd_mmap_t)
     86 #define IOCTL_PRIVCMD_MMAPBATCH        \
     87     _IOW('P', 3, privcmd_mmapbatch_t)
     88 #define IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN \
     89     _IOW('P', 4, unsigned long)
     90 
     91 /* Interface to /dev/xenevt */
     92 /* EVTCHN_RESET: Clear and reinit the event buffer. Clear error condition. */
     93 #define EVTCHN_RESET  _IO('E', 1)
     94 /* EVTCHN_BIND: Bind to the specified event-channel port. */
     95 #define EVTCHN_BIND   _IOW('E', 2, unsigned long)
     96 /* EVTCHN_UNBIND: Unbind from the specified event-channel port. */
     97 #define EVTCHN_UNBIND _IOW('E', 3, unsigned long)
     98 
     99 #endif /* __PRIVCMD_H__ */
    100