[pve-devel] saving kvm command line for migration

[Dietmar Maurer]

> can somebody please explain to be what's the problem with saving the kvm
> command of the last start as JSON array inside the conf file and use that one
> for migration?

I think there is no guarantee that the same configuration generates the same command line
on different hosts.

> I'm seeing several problems with migration and modifing the configuration
> while the VM is running.

There are 2 possible solutions:

A. store the configuration at VM start (and use that configuration to start after migration)
B. Do not allow to modify the configuration while the VM is running (and hotplug disabled)

I think B.) is easier to implement.