Re: [PATCH 0/5] KVM paravirt_ops implementation

Jeremy Fitzhardinge
2007-06-20T20:55:26Z

Zachary Amsden wrote:
> You only need to quiesce if you have guest-visible data-structures
> that have details about the underlying hardware. So Xen needs to
> quiesce, but I don't know of any other VMM that would.
>
> VMI, KVM and lhype should be capable of transparent migration without
> guest involvement.

Sure; Xen makes the explicit design decision that suspend/resume/migrate
are things that the guest is likely to want to have some involvement in
if its already doing all the paravirt games. A
semi-kinda-paravirtualized hvm Xen guest doesn't have to worry too much
about those kinds of things.

J