diff options
Diffstat (limited to 'hw/virtio-balloon.h')
| -rw-r--r-- | hw/virtio-balloon.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/virtio-balloon.h b/hw/virtio-balloon.h index 9a0d119e42..e20cf6bc0d 100644 --- a/hw/virtio-balloon.h +++ b/hw/virtio-balloon.h @@ -25,6 +25,7 @@ /* The feature bitmap for virtio balloon */ #define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */ +#define VIRTIO_BALLOON_F_STATS_VQ 1 /* Memory stats virtqueue */ /* Size of a PFN in the balloon interface. */ #define VIRTIO_BALLOON_PFN_SHIFT 12 @@ -37,4 +38,18 @@ struct virtio_balloon_config uint32_t actual; }; +/* Memory Statistics */ +#define VIRTIO_BALLOON_S_SWAP_IN 0 /* Amount of memory swapped in */ +#define VIRTIO_BALLOON_S_SWAP_OUT 1 /* Amount of memory swapped out */ +#define VIRTIO_BALLOON_S_MAJFLT 2 /* Number of major faults */ +#define VIRTIO_BALLOON_S_MINFLT 3 /* Number of minor faults */ +#define VIRTIO_BALLOON_S_MEMFREE 4 /* Total amount of free memory */ +#define VIRTIO_BALLOON_S_MEMTOT 5 /* Total amount of memory */ +#define VIRTIO_BALLOON_S_NR 6 + +typedef struct VirtIOBalloonStat { + uint16_t tag; + uint64_t val; +} __attribute__((packed)) VirtIOBalloonStat; + #endif |