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Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus
From: |
David Gibson |
Subject: |
Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus |
Date: |
Fri, 22 Sep 2017 21:49:33 +1000 |
User-agent: |
Mutt/1.9.0 (2017-09-02) |
On Fri, Sep 22, 2017 at 01:37:39PM +0200, Cédric Le Goater wrote:
> >> well, it would be good to be able to define chips with different
> >> numbers of cpus. That is something will we want to do for sure.
> >
> > You mean multiple chips in a single system with non-uniform numbers of
> > cores? Are there really such systems in the wild?
> >
>
> When CPU fail for some reason, yes. They are garded by the FW and next
> boot the system will have different numbers of CPUs on its chip.
Ok, but you can model that with max_cpus the full potential number,
then just don't have all of them on initially. The basic topology
remains uniform.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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- Re: [Qemu-ppc] [Qemu-devel] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, (continued)
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, David Gibson, 2017/09/21
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Nikunj A Dadhania, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Cédric Le Goater, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, David Gibson, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Cédric Le Goater, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, David Gibson, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Cédric Le Goater, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus,
David Gibson <=
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Greg Kurz, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Cédric Le Goater, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, Nikunj A Dadhania, 2017/09/22
- Re: [Qemu-ppc] [PATCH] ppc/pnv: fix cores per chip for multiple cpus, David Gibson, 2017/09/22