On 01/13/2011 09:36 AM, Justin Clift wrote: > How's this for new virsh text for the setvcpus bit? > > setvcpus domain-id count optional --maximum --config --live > Change the number of virtual CPUs active in a guest domain. By default, this command works on active > guest domains. To change the settings for an inactive guest domain, use the --config flag. > > The count value may be limited by host, hypervisor, or a limit coming from the original description of the > guest domain. > > For Xen, you can only adjust the virtual CPUs of a running domain if the domain is paravirtualized. Since both of these paragraphs talk about limitations on using the command, I could see merging them if you wanted, but that's up to you. > > If the --config flag is specified, the change is made to the stored XML configuration for the guest domain, > and will only take effect when the guest domain is next started. > > If --live is specified, the domain must be active, and the change takes place immediately. Both the > --config and --live flags may be specified together if supported by the hypervisor. > > When neither the --config nor --live flags are given, the --live flag is assumed and the guest domain must > be active. In this situation it is up to the hypervisor whether the --config flag is also assumed, and > therefore whether the XML configuration is adjusted to make the change persistent. > > The --maximum flag controls the maximum number of virtual cpus that can be hot-plugged the next time the > domain is booted. As such, it must only be used with the --config flag, and not with the --live option. That reads well to me. Thanks for persisting on this. -- Eric Blake eblake@xxxxxxxxxx +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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