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xen-devel
Re: [Xen-devel] VM reboot ?
> > I've not solved my VBD problems, but I realized that NFS mounting is a
> > better way somehow.
> >
> > Now I'm wondering if it's possible to have a domain reboot/restart
> > itself without domain 0 intervention. Right now, when I reboot a non 0
> > domain, it basically turns if off and makes it disappear.
>
> No, that's not supported at the moment, although it probably wouldn't
> be that hard to implement.
There's various ways we could do this, but because the kernel
needs re-loading, it is going to require intervention from the
domain 0 user space xi_build tool.
The easiest way is probably to 'sleep' domains that exit with a
reboot code (rather than a halt code), and then somehow signal
domain 0 that is should re-run xi_build with the same arguments,
and then wake the domain. This way, we get to keep the same
memory allocation, scheduling parameters, VBDs and physical
partitions.
We should keep this sort of thing in mind when discussing the
redesign of the xenctl tools.
Ian
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