Re: [Qemu-devel] [QEMU patch 2/2] kvm: allow configuration of tsc deadline timer advancement

[Marcelo Tosatti]

On Wed, Dec 10, 2014 at 06:09:19PM +0100, Paolo Bonzini wrote:
> 
> 
> On 10/12/2014 18:04, Marcelo Tosatti wrote:
> >> Please add an object property to the x86 CPU object.  It can then be
> >> configured with "-global" on the command line.
> > 
> > Don't want to allow individual values for different CPUs. 
> > It is a per-VM property.
> 
> Why?  It can cause busy waiting, it would make sense to make it stricter
> for realtime CPUs and leave 0 for non-realtime CPUs.
> 
> Paolo

HW timer behaviour should be consistent across CPUs, IMO.