Re: [Xen-devel] [PATCH] svm: Avoid VINTR injection during NMI shadow

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

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>
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