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Re: [Qemu-ppc] [PATCH 1/2] spapr/rtas: disable the decrementer interrupt


From: Benjamin Herrenschmidt
Subject: Re: [Qemu-ppc] [PATCH 1/2] spapr/rtas: disable the decrementer interrupt when a CPU is unplugged
Date: Fri, 06 Oct 2017 11:53:30 +0200

On Fri, 2017-10-06 at 20:07 +1100, David Gibson wrote:
> Hm.  Checking mmu_model doesn't seem right to me.  I mean, it'll get
> the right answer in practice, but the LPCR programming has nothing
> whatsoever to do with the MMU.
> 
> I think explicitly checking if cpu_ is a POWER9 instance with
> object_dynamic_cast would be a better option.

Best is ARCH 300 ... do we hvae arch versions outside of MMU model
these days ?

Ben.




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