sys/arch/xen/include/xenio.h

   1 /*      $NetBSD: xenio.h,v 1.5 2005/12/11 12:19:48 christos 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 __XEN_XENIO3_H__
  31 #define __XEN_XENIO3_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     long retval;
  40 } privcmd_hypercall_t;
  41
  42 typedef struct privcmd_mmap_entry {
  43     unsigned long va;
  44     unsigned long mfn;
  45     unsigned long npages;
  46 } privcmd_mmap_entry_t;
  47
  48 typedef struct privcmd_mmap {
  49     int num;
  50     domid_t dom; /* target domain */
  51     privcmd_mmap_entry_t *entry;
  52 } privcmd_mmap_t;
  53
  54 typedef struct privcmd_mmapbatch {
  55     int num;     /* number of pages to populate */
  56     domid_t dom; /* target domain */
  57     unsigned long addr;  /* virtual address */
  58     unsigned long *arr; /* array of mfns - top nibble set on err */
  59 } privcmd_mmapbatch_t;
  60
  61 typedef struct privcmd_blkmsg
  62 {
  63     unsigned long op;
  64     void         *buf;
  65     int           buf_size;
  66 } privcmd_blkmsg_t;
  67
  68 /*
  69  * @cmd: IOCTL_PRIVCMD_HYPERCALL
  70  * @arg: &privcmd_hypercall_t
  71  * Return: Value returned from execution of the specified hypercall.
  72  */
  73 #define IOCTL_PRIVCMD_HYPERCALL         \
  74     _IOWR('P', 0, privcmd_hypercall_t)
  75
  76 #if defined(_KERNEL)
  77 /* compat */
  78 #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN_OLD \
  79     _IO('P', 1)
  80
  81 typedef struct oprivcmd_hypercall
  82 {
  83     unsigned long op;
  84     unsigned long arg[5];
  85 } oprivcmd_hypercall_t;
  86
  87 #define IOCTL_PRIVCMD_HYPERCALL_OLD       \
  88     _IOWR('P', 0, oprivcmd_hypercall_t)
  89 #endif /* defined(_KERNEL) */
  90
  91 #define IOCTL_PRIVCMD_MMAP             \
  92     _IOW('P', 2, privcmd_mmap_t)
  93 #define IOCTL_PRIVCMD_MMAPBATCH        \
  94     _IOW('P', 3, privcmd_mmapbatch_t)
  95 #define IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN \
  96     _IOR('P', 4, unsigned long)
  97
  98 /*
  99  * @cmd: IOCTL_PRIVCMD_INITDOMAIN_EVTCHN
 100  * @arg: n/a
 101  * Return: Port associated with domain-controller end of control event channel
 102  *         for the initial domain.
 103  */
 104 #define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN \
 105     _IOR('P', 5, int)
 106
 107 /* Interface to /dev/xenevt */
 108 /* EVTCHN_RESET: Clear and reinit the event buffer. Clear error condition. */
 109 #define EVTCHN_RESET  _IO('E', 1)
 110 /* EVTCHN_BIND: Bind to the specified event-channel port. */
 111 #define EVTCHN_BIND   _IOW('E', 2, unsigned long)
 112 /* EVTCHN_UNBIND: Unbind from the specified event-channel port. */
 113 #define EVTCHN_UNBIND _IOW('E', 3, unsigned long)
 114
 115 #endif /* __XEN_XENIO3_H__ */