[PATCH] allow vcpu to move between pcpus (was Re: [Xen-ia64-devel] credit sched on ia64)

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

This patch allows vcpu to move between pcpus.
I couldn't boot domU on credit scheduler without this patch.
This patch is only for correctness. This patch isn't efficient.

Maybe a consideration on VHPT per pcpu is needed.
- allocation of region id per domain.
  Should rid region be allocated per vcpu?
  By this, it would be unnecessary to flush when vcpu movement.
  But I think this isn't very preferable because the size of region id
  given to vcpu would be too small.

- Currently allocation of VHPT per physical cpus.
  Allocate VHPT per vcpu like vt-i domain?
  I think this is preferable, but some measuremeat should back this.

- other?

Thanks


On Thu, Jun 22, 2006 at 09:14:02AM +0200, Tristan Gingold wrote:
> Hi
> 
> I am maybe late on this issue but has anyone tried credit scheduler on 
> xen/ia64 ?
> I suppose it doesn't work well because we don't support vcpu migration yet.
> 
> Tristan.
> 
> _______________________________________________
> Xen-ia64-devel mailing list
> Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-ia64-devel
> 

-- 
yamahata

Attachment: 10602:34ac5c89f47e_allow_vcpu_to_move_between_pcpus.patch
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