Re: [Qemu-devel] [RFC]VM live snapshot proposal

[Huangpeng (Peter)]

> Hi Paolo,
> 
> On Mon, Mar 03, 2014 at 02:47:31PM +0100, Paolo Bonzini wrote:
> >   I'm not sure what's the status of the kernel infrastructure for
> > post-copy.  Andrea?
> 
> sys_userfaultfd is still work in progress but it shouldn't be much work left 
> to
> completion. madvise(MADV_USERFAULT) and
> remap_anon_pages() are complete for a while.

http://qemu-project.org/Features/PostCopyLiveMigration
From the feature description, post-copy uses memory copy, so this infrastructure
will solve this problem, but do not help snapshot, am I right?

Thansk