Re: [Xen-devel] reliable live migration of large and busy guests

[Olaf Hering <olaf@xxxxxxxxx>]

On Tue, Nov 06, Andrew Cooper wrote:

> Is there wisdom in having a new kind of live migrate which, when pausing
> the VM on the source host, resumes the VM on the destination host.  Xen
> would have to track not-yet-sent pages and pause the guest on pagefault,
> and request the required page as a matter of priority.

On the receiving side all missing pages could be handled as "paged"
(just nominating a missing pfn should be enough). A pager can then
request them from the sender host.

Olaf

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