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-rw-r--r--include/linux/virtio_balloon.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/virtio_balloon.h b/include/linux/virtio_balloon.h
index 1418f048cb3..a50ecd1b81a 100644
--- a/include/linux/virtio_balloon.h
+++ b/include/linux/virtio_balloon.h
@@ -7,6 +7,7 @@
/* 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
@@ -18,4 +19,18 @@ struct virtio_balloon_config
/* Number of pages we've actually got in balloon. */
__le32 actual;
};
+
+#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
+
+struct virtio_balloon_stat {
+ u16 tag;
+ u64 val;
+} __attribute__((packed));
+
#endif /* _LINUX_VIRTIO_BALLOON_H */