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

[Andre Przywara <andre.przywara@amd.com>]

Dulloor wrote:
> On Tue, Aug 3, 2010 at 10:27 PM, Keir Fraser <keir.fraser@eu.citrix.com> wrote:
>> On 03/08/2010 22:55, "Andre Przywara" <andre.przywara@amd.com> wrote:
>>
>>>> As such, the purpose of vnode-to-mnode translation is for the enlightened
>>>> guests to know where their underlying memory comes from, so that
>>>> over-provisioning features
>>>> like ballooning are given a chance to maintain this distribution.
>>> I was afraid you were saying that ;-) I haven't thought about this in
>>> detail, but maybe we can make an exception for Dom0 only, because this
>>> is the most prominent and frequent user of ballooning. But I really
>>> think that DomUs should not know about or deal with host NUMA nodes.
>> So long as it gets renamed to 'node_id' in the info structure I'm okay with
>> it. That doesn't preclude simply setting that field to 0...nr_vnodes-1 and
>> doing translation in the hypervisor, but also leaves us a bit of
>> flexibility.
> Yes, I like this idea. Will do that.
Ack, that sounds good. So we have virtual nodes, virtual physical nodes 
and machine nodes.

Andre.

-- 
Andre Przywara
AMD-OSRC (Dresden)
Tel: x29712