On Mon, Jun 18, 2012 at 02:57:12PM +0300, Alek Paunov wrote:
However, I never tried to update qemu-system with live VMs.
The update will work, but the VMs will still be running the old code.
You can actually solve that problem using VM migration: live migrate
the VM from the old qemu to the new qemu. Downtime should be minimal
(a fraction of a second). Like a good daemon, qemu is able to
serialize its internal state and reproduce it in another instance.
So there is definitely a path to make this work if, for example, qemu
was found to have a serious security bug.
Rich.
--
Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
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