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Re: [xen-devel][vNUMA v2][PATCH 2/8] public interface

To: Dulloor <dulloor@xxxxxxxxx>
Subject: Re: [xen-devel][vNUMA v2][PATCH 2/8] public interface
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 3 Aug 2010 16:52:54 +0100
Cc: Andre Przywara <andre.przywara@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 03/08/2010 16:43, "Dulloor" <dulloor@xxxxxxxxx> wrote:

>> I would expect guest would see nodes 0 to nr_vnodes-1, and the mnode_id
>> could go away.
> mnode_id maps the vnode to a particular physical node. This will be
> used by balloon driver in
> the VMs when the structure is passed as NUMA enlightenment to PVs and
> PV on HVMs.
> I have a patch ready for that (once we are done with this series).

So what happens when the guest is migrated to another system with different
physical node ids? Is that never to be supported? I'm not sure why you
wouldn't hide the vnode-to-mnode translation in the hypervisor.

 -- Keir

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