Re: [Xen-devel] [PATCH] nestedhvm: ASID emulation

[Christoph Egger <Christoph.Egger@xxxxxxx>]

On 04/15/11 14:53, Keir Fraser wrote:
> On 15/04/2011 10:57, "Christoph Egger"<Christoph.Egger@xxxxxxx>  wrote:
>
> > On 04/15/11 11:24, Keir Fraser wrote:
> > > On 15/04/2011 10:08, "Christoph Egger"<Christoph.Egger@xxxxxxx>   wrote:
> > Just found another fallout that got lost from my original patch.
> >
> > After shutting down XP mode in Windows 7, Win7 turns off SVM in EFER
> > after about 30 seconds. When starting XP mode again, Win 7 turns SVM on
> > again.
> >
> > Then nv_n2asid can be stale. Attached patch fixes this.
> Should be using hvm_asid_flush_vcpu_asid(), so I'll fix the patch to use
> that and then check it in.
There are a lot of regressions now... I assume the non-nested 
virtualization case got broken.
Attached patch covers the non-nested case (and contains the above 
discussed hvm_asid_flush_vcpu_asid() as it didn't appear yet upstream).
Signed-off-by: Christoph Egger<Christoph.Egger@xxxxxxx>


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xen_nh_asid.diff
Description: xen_nh_asid.diff

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