Re: [RFC 5/6] x86, NMI, Add support to notify hardware error with unknown NMI

Don Zickus
2010-09-10T18:40:58Z

On Fri, Sep 10, 2010 at 06:19:29PM +0200, Andi Kleen wrote:
>
> > I am grasping for straws here, but is there a register that APEI/HEST
> > can poke to see if it generated the NMI?
>
> HEST knows this yes.
>
> But this is not about HEST errors, but about those without HEST
> handling.

Don't most unknown NMIs fall into the same boat, that they were not being
handled properly?

On the other hand could you use the die_notifier_chain(DIE_UNKNOWNNMI) for
the same purpose and keep the unknown_nmi_error() handler a little
cleaner?

Cheers,
Don