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Re: [Xen-users] Running Linux VM in para mode with Intel VT enabled

On Thu, Sep 20, 2012 at 10:34 PM, kevin parker
<kevin.parker092@xxxxxxxxx> wrote:

> 1. how can i makesure that all the created VM will be in
> paravirtualized mode even with VT enabled?

Depends on how you create the VMs.

For example, if you create it by hand, then if you DON'T have a line
"builder='hvm'" in the VM config file, then you're using PV. If you
use some kind of frontend (e.g. libvirt) it should have an option to
choose VM type.

> 2.Can i be able to run Linux VM in para mode with VT enabled?


> 3.Will simply turning on VT support changes virtualization type from para to
> full for all vms created on that machine?


> 4.Will there be any performance improvement for VM running Linux OS if VT is
> enabled?


> 5.Is it normal to miss vmx flag in /proc/cpuinfo after booting to XEN
> kernel,even with VT enabled?

yes. Xen intentionally hides it because xen uses it, and no other
process in the dom0 can use it anyway.


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