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xen-devel
Re: [Xen-devel] [PATCH] svm: Avoid VINTR injection during NMI shadow
Totally agree, you are are right only NMI injection should be avoid.
I have tested that the new condition works well. Thanks.
Wei
On Friday 07 May 2010 18:56:32 Keir Fraser wrote:
> I think the if statement should be:
> if ((vmcb->general1_intercepts & GENERAL1_INTERCEPT_IRET) &&
> (intack.source == hvm_intsrc_nmi))
> return;
>
> Which I think deals properly and specifically with this hang problem.
>
> What do you think?
>
> -- Keir
>
> On 07/05/2010 15:41, "Wei Wang2" <wei.wang2@xxxxxxx> wrote:
> > Hi,
> > I had observed that if xen injects and intercepts VINTR during NMI
> > shadow, and if the xen injects NMI into guest at a very hight frequency,
> > guest vcpu will hang. Attached patch avoids VINTR injection when guest is
> > handling a NMI.
> >
> > Thanks,
> >
> > Wei
> > Signed-off-by: Wei Wang <wei.wang2@xxxxxxx>
> > Reviewed-by: Wei Huang<wei.huang2@xxxxxxx>
> > --
> > Legal Information:
> > Advanced Micro Devices GmbH
> > Karl-Hammerschmidt-Str. 34
> > 85609 Dornach b. München
> >
> > Geschäftsführer: Andrew Bowd, Thomas M. McCoy, Giuliano Meroni
> > Sitz: Dornach, Gemeinde Aschheim, Landkreis München
> > Registergericht München, HRB Nr. 43632
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