Re: [PATCH] KVM: PPC: Exit guest upon fatal machine check exception

[Daniel Axtens <dja@axtens.net>]

> So, IIUC.  Once the qemu pieces are in place as well it shouldn't
> change this behaviour: KVM will exit to qemu, qemu will log the error
> information (new), then reinject the MC to the guest which can still
> handle it as you describe above.

Ah, that makes *much* more sense now! Thanks for the explanation: I
don't really follow qemu development.

>
> But, there could be a problem if you have a new kernel with an old
> qemu, in that case qemu might not understand the new exit type and
> treat it as a fatal error, even though the guest could actually cope
> with it.
>
> Aravinda, do we need to change this so that qemu has to explicitly
> enable the new NMI behaviour?  Or have I missed something that will
> make that case work already.

<puts on CAPI hat>Yeah, it would be good not to break this.</hat>

Regards,
Daniel


> -- 
> David Gibson			| I'll have my music baroque, and my code
> david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
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