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/*
* Virtio Support
*
* Copyright IBM, Corp. 2007-2008
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Rusty Russell <rusty@rustcorp.com.au>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#ifndef _QEMU_VIRTIO_BALLOON_H
#define _QEMU_VIRTIO_BALLOON_H
#include "virtio.h"
#include "pci.h"
/* from Linux's linux/virtio_balloon.h */
/* The ID for virtio_balloon */
#define VIRTIO_ID_BALLOON 5
/* The feature bitmap for virtio balloon */
#define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */
/* Size of a PFN in the balloon interface. */
#define VIRTIO_BALLOON_PFN_SHIFT 12
struct virtio_balloon_config
{
/* Number of pages host wants Guest to give up. */
uint32_t num_pages;
/* Number of pages we've actually got in balloon. */
uint32_t actual;
};
void *virtio_balloon_init(PCIBus *bus);
#endif
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