On 2011-12-05 11:01, Avi Kivity wrote: > On 12/04/2011 11:38 PM, Jan Kiszka wrote: >>> >>> It should be also possible to migrate from non-KVM device to KVM >>> version, different names would prevent that for ever. >> >> It is (theoretically) possible with these patches as the vmstate names >> are the same. KVM to TCG migration does not work right now, so I was >> only able to test in-kernel <-> user space irqchip model migrations. > > btw, for the next-gen migration protocol, we'd probably be using QOM > paths, not vmstate names; the QOM paths would include the device name?
That would be a very bad idea IMHO. Every refactoring of your device tree, e.g. to model CPU hotplug and the ICC bus more accurately, would risk to create a migration crack. At least we would need some stable naming and/or alias concept then. Jan
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