mirror of https://gitee.com/openkylin/qemu.git
41 lines
904 B
C
41 lines
904 B
C
|
/*
|
||
|
|
* 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;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|