hw/virtio-balloon.h

   1 /*
   2  * Virtio Support
   3  *
   4  * Copyright IBM, Corp. 2007-2008
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *  Rusty Russell     <rusty@rustcorp.com.au>
   9  *
  10  * This work is licensed under the terms of the GNU GPL, version 2.  See
  11  * the COPYING file in the top-level directory.
  12  *
  13  */
  14
  15 #ifndef _QEMU_VIRTIO_BALLOON_H
  16 #define _QEMU_VIRTIO_BALLOON_H
  17
  18 /* from Linux's linux/virtio_balloon.h */
  19
  20 /* The ID for virtio_balloon */
  21 #define VIRTIO_ID_BALLOON       5
  22
  23 /* The feature bitmap for virtio balloon */
  24 #define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */
  25
  26 struct virtio_balloon_config
  27 {
  28     /* Number of pages host wants Guest to give up. */
  29     uint32_t num_pages;
  30     /* Number of pages we've actually got in balloon. */
  31     uint32_t actual;
  32 };
  33
  34 #endif