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[QEMU,v2,2/9] virtio-balloon: update linux head file

Message ID 1468550849-22172-3-git-send-email-liang.z.li@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Liang Li July 15, 2016, 2:47 a.m. UTC 
Update the new feature bit definition and the page bitmap header
struct to keep consistent with kernel side.

Signed-off-by: Liang Li <liang.z.li@intel.com>
---
 include/standard-headers/linux/virtio_balloon.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
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Patch

diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h
index 9d06ccd..d577359 100644
--- a/include/standard-headers/linux/virtio_balloon.h
+++ b/include/standard-headers/linux/virtio_balloon.h
@@ -34,6 +34,7 @@ 
 #define VIRTIO_BALLOON_F_MUST_TELL_HOST	0 /* Tell before reclaiming pages */
 #define VIRTIO_BALLOON_F_STATS_VQ	1 /* Memory Stats virtqueue */
 #define VIRTIO_BALLOON_F_DEFLATE_ON_OOM	2 /* Deflate balloon on OOM */
+#define VIRTIO_BALLOON_F_PAGE_BITMAP	3 /* Send page info with bitmap */
 
 /* Size of a PFN in the balloon interface. */
 #define VIRTIO_BALLOON_PFN_SHIFT 12
@@ -82,4 +83,22 @@  struct virtio_balloon_stat {
 	__virtio64 val;
 } QEMU_PACKED;
 
+/* Page bitmap header structure */
+struct balloon_bmap_hdr {
+	/* Used to distinguish different request */
+	__virtio16 cmd;
+	/* Shift width of page in the bitmap */
+	__virtio16 page_shift;
+	/* flag used to identify different status */
+	__virtio16 flag;
+	/* Reserved */
+	__virtio16 reserved;
+	/* ID of the request */
+	__virtio64 req_id;
+	/* The pfn of 0 bit in the bitmap */
+	__virtio64 start_pfn;
+	/* The length of the bitmap, in bytes */
+	__virtio64 bmap_len;
+};
+
 #endif /* _LINUX_VIRTIO_BALLOON_H */