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[Qemu-devel] [PATCH qemu v3 1/6] virtio-balloon: update linux head file
From: |
Liang Li |
Subject: |
[Qemu-devel] [PATCH qemu v3 1/6] virtio-balloon: update linux head file |
Date: |
Fri, 21 Oct 2016 14:48:19 +0800 |
Update the new feature bit definition for virtio balloon and
the page bitmap header, request header struct to keep consistent
with kernel side.
Signed-off-by: Liang Li <address@hidden>
---
include/standard-headers/linux/virtio_balloon.h | 41 +++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/include/standard-headers/linux/virtio_balloon.h
b/include/standard-headers/linux/virtio_balloon.h
index 9d06ccd..797a868 100644
--- a/include/standard-headers/linux/virtio_balloon.h
+++ b/include/standard-headers/linux/virtio_balloon.h
@@ -34,6 +34,8 @@
#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 */
+#define VIRTIO_BALLOON_F_MISC_VQ 4 /* Misc info virtqueue */
/* Size of a PFN in the balloon interface. */
#define VIRTIO_BALLOON_PFN_SHIFT 12
@@ -82,4 +84,43 @@ 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;
+};
+
+enum balloon_req_id {
+ /* Get free pages information */
+ BALLOON_GET_FREE_PAGES,
+};
+
+enum balloon_flag {
+ /* Have more data for a request */
+ BALLOON_FLAG_CONT,
+ /* No more data for a request */
+ BALLOON_FLAG_DONE,
+};
+
+struct balloon_req_hdr {
+ /* Used to distinguish different request */
+ __virtio16 cmd;
+ /* Reserved */
+ __virtio16 reserved[3];
+ /* Request parameter */
+ __virtio64 param;
+};
+
#endif /* _LINUX_VIRTIO_BALLOON_H */
--
1.8.3.1
- [Qemu-devel] [PATCH qemu v3 0/6] Fast (de)inflating & fast live migration, Liang Li, 2016/10/21
- [Qemu-devel] [PATCH qemu v3 2/6] virtio-balloon: speed up inflating & deflating process, Liang Li, 2016/10/21
- [Qemu-devel] [PATCH qemu v3 3/6] balloon: get free page info from guest, Liang Li, 2016/10/21
- [Qemu-devel] [PATCH qemu v3 5/6] kvm: Add two new arch specific functions, Liang Li, 2016/10/21
- [Qemu-devel] [PATCH qemu v3 1/6] virtio-balloon: update linux head file,
Liang Li <=
- [Qemu-devel] [PATCH qemu v3 4/6] bitmap: Add a new bitmap_move function, Liang Li, 2016/10/21
- [Qemu-devel] [PATCH qemu v3 6/6] migration: skip free pages during live migration, Liang Li, 2016/10/21
- Re: [Qemu-devel] [PATCH qemu v3 0/6] Fast (de)inflating & fast live migration, no-reply, 2016/10/21
- Re: [Qemu-devel] [PATCH qemu v3 0/6] Fast (de)inflating & fast live migration, no-reply, 2016/10/21
- Re: [Qemu-devel] [PATCH qemu v3 0/6] Fast (de)inflating & fast live migration, Michael S. Tsirkin, 2016/10/30