Re: [Xen-devel] [RFC 0/5] xen/arm: support big.little SoC

[Julien Grall <julien.grall@xxxxxxx>]

Hello Peng,

On 22/09/16 10:27, Peng Fan wrote:
> On Thu, Sep 22, 2016 at 10:50:23AM +0200, Dario Faggioli wrote:
> > On Thu, 2016-09-22 at 14:49 +0800, Peng Fan wrote:
> > > On Wed, Sep 21, 2016 at 08:11:43PM +0100, Julien Grall wrote:
> > A feature like `xl cpupool-biglittle-split' can still be interesting,
> "cpupool-cluster-split" maybe a better name?
You seem to assume that a cluster, from the MPIDR point of view, can 
only contain the same set of CPUs. I don't think this is part of the 
architecture, so this may not be true in the future.
> > completely orthogonally and independently from the affinity based work,
> > and this series looks like it can be used to implement that. :-)
> Agree. All pcpus default can be assigned into cpupool0 based on the affinity 
> work.
What do you mean by affinity? From MPIDR?

> We could add one like "cpupool-numa-split" to split different classes cpu
> into different cpupools.
Regards,

--
Julien Grall

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