Re: [Xen-devel] What runtime states to be preserved across save / restore?

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2014-04-28 at 14:57 +0100, Wei Liu wrote:

> > Other things I can think of right now:
> > 
> >       * The devid of each device -- for some classes these can be
> >         automatically assigned, I'm not really sure if that needs
> >         preserving or not.
> 
> I don't think so. The receiving end should make its own decision.

Having eth0 become eth1 over migrate would be surprising though,
wouldn't it?

> >       * Hotplug of devices more generally
> > 
> 
> Scripts? If so, they, with the things you mentioned below ...

Not script, I meant e.g. xl block-attach and stuff like that.

> > The selection of the block device backend is also interesting. If the
> > user didn't select then you want to remember that so the other end can
> > make its own choice about what is best, but if the user asked for
> > something explicit it needs preserving.
> > 
> 
> ... are already in the config file if user ever specifies them, so
> they are already preserved.

Great. But the config file doesn't contain hotplugged devices I think.

Ian.


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