Re: [Xen-devel] [PATCH] Crash VMX when guest NMI.

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 8/11/06 13:13, "Li, Xin B" <xin.b.li@xxxxxxxxx> wrote:

> Crash VMX when guest NMI.
> It's meanless to call do_nmi of Xen HV when guest NMI, and acturally
> guest NMI can only be injected, is it possible to happen inside guest?
> 
> Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>

That path is taken for real NMIs. We shouldn't take it for exceptions on
vector 2 as bit 2 is not set in the exception-intercept bitmap.

However, I'll add a patch to actually check the INTRO_INFO_TYPE_MASK before
calling do_nmi(). Certainly we should only do_nmi() if the type is NMI (2).

 -- Keir



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