LXR qemu/include/hw/virtio/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#include "standard-headers/linux/virtio_balloon.h"
  19#include "hw/virtio/virtio.h"
  20#include "hw/pci/pci.h"
  21
  22#define TYPE_VIRTIO_BALLOON "virtio-balloon-device"
  23#define VIRTIO_BALLOON(obj) \
  24        OBJECT_CHECK(VirtIOBalloon, (obj), TYPE_VIRTIO_BALLOON)
  25
  26typedef struct virtio_balloon_stat VirtIOBalloonStat;
  27
  28typedef struct virtio_balloon_stat_modern {
  29       uint16_t tag;
  30       uint8_t reserved[6];
  31       uint64_t val;
  32} VirtIOBalloonStatModern;
  33
  34typedef struct VirtIOBalloon {
  35    VirtIODevice parent_obj;
  36    VirtQueue *ivq, *dvq, *svq;
  37    uint32_t num_pages;
  38    uint32_t actual;
  39    uint64_t stats[VIRTIO_BALLOON_S_NR];
  40    VirtQueueElement *stats_vq_elem;
  41    size_t stats_vq_offset;
  42    QEMUTimer *stats_timer;
  43    int64_t stats_last_update;
  44    int64_t stats_poll_interval;
  45    uint32_t host_features;
  46} VirtIOBalloon;
  47
  48#endif
  49