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xen-devel
RE: [Xen-devel] [PATCH 03/11] [XEN] NUMA guest tools interface
Andre Przywara wrote:
> Dulloor wrote:
>> The patch adds hypercall interfaces to get/set the virtual numa
>> layout for a domain.
> I don't see the need for introducing this many new interfaces. I
I also have the same feeling. :-)
> couldn't find a reference for the nodemap information (mfn_to_nid) to
> be actually used somewhere, is there any missing part or was it just
> for the sake of completeness?
> Beside that, cpu_to_node is already in physinfo, and via xc_availheap
> (which takes a node parameter) you can query the amount of free memory
> per node. I think that is all we need to know about the host's NUMA
> topology, but correct me if I am wrong.
> (OK, the distance information is missing...)
I'd like to have Nitin's patch:
http://old.nabble.com/Host-Numa-informtion-in-dom0-td27379527.html.
> From a design point of view I would avoid exporting so many host
> machine information to Dom0 unless we really need it.
Agree. I think we should have a fundamental and brief API to export the
necessary info.
Thanks,
-- Dexuan
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