Re: [Xen-devel] Re: Poor performance on HVM (kernbench)

[John Levon <levon@xxxxxxxxxxxxxxxxx>]

On Thu, Sep 11, 2008 at 01:02:51PM -0700, Jeremy Fitzhardinge wrote:

> > To the best of my knowledge, I am not using PV on HVM drivers since
> > they are not upstream.
> > I am using 2.6.27-rc4 xen domU kernel, with the normal xen PV drivers
> > and KVM virtio built in.
> > Am I mistaken?
> >   
> 
> No, there's no pv-hvm driver support upstream yet.  When I get around to
> it I intend adding support for the pagetable shootdown
> paravirtualization too, so that unshadowing shouldn't be a problem.

Hmm, this came up recently, but I don't remember seeing this. Sounds
interesting, is there somewhere we can read more?

regards
john

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