On (Tue) 18 Oct 2016 [20:10:04], zhanghailiang wrote:
> VM checkpointing is to synchronize the state of PVM to SVM, just
> like migration does, we re-use save helpers to achieve migrating
> PVM's state to Secondary side.
>
> COLO need to cache the data of VM's state in the secondary side before
> synchronize it to SVM. COLO need the size of the data to determine
> how much data should be read in the secondary side.
> So here, we can get the size of the data by saving it into I/O channel
> before send it to the secondary side.
>
> Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
> Signed-off-by: Gonglei <arei.gong...@huawei.com>
> Signed-off-by: Li Zhijian <lizhij...@cn.fujitsu.com>
> Reviewed-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
> Cc: Dr. David Alan Gilbert <dgilb...@redhat.com>
Reviewed-by: Amit Shah <amit.s...@redhat.com>
Amit
