Re: [Libvir] Next features and target for development
On Tue, 2007-07-10 at 17:23 +0100, Daniel P. Berrange wrote:
On Tue, Jul 10, 2007 at 05:12:38PM +0100, Richard W.M. Jones wrote:
>
> (2) Are the hosts compatible? (eg. microarchitecture, hypervisor, ...
> other sources of incompatibility?) Should we care at the API level or
> just report errors from the hypervisors?
The app can validate to some degree by looking at the capabilities
XML to see what's supported on both ends & what the guest is using.
So I'd let the app do high level validation with that, and just then
propagate errors from the underlying system - keeping poliucy out of
the libvirt API.
This question comes up in other contexts than migration, too, for
example, when you want to start an image you just downloaded. I think it
would make sense if there was a common baseline in libvirt that could
tell you if a VM has any chance of running at all - otherwise that logic
will be scattered across lots of apps.
David