1 #ifndef _LINUX_VIRTIO_BALLOON_H 2 #define _LINUX_VIRTIO_BALLOON_H 3 #include <linux/virtio_config.h> 4 5 /* The ID for virtio_balloon */ 6 #define VIRTIO_ID_BALLOON 5 7 8 /* The feature bitmap for virtio balloon */ 9 #define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */ 10 11 struct virtio_balloon_config 12 { 13 /* Number of pages host wants Guest to give up. */ 14 __le32 num_pages; 15 /* Number of pages we've actually got in balloon. */ 16 __le32 actual; 17 }; 18 #endif /* _LINUX_VIRTIO_BALLOON_H */ 19