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Date: Wed, 19 Feb 2014 14:03:19 -0800 (PST)
From: David Rientjes <rientjes@google.com>
To: Christoph Lameter <cl@linux.com>
Subject: Re: [RFC PATCH 2/3] topology: support node_numa_mem() for determining
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Cc: Han Pingtian <hanpt@linux.vnet.ibm.com>,
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On Tue, 18 Feb 2014, Christoph Lameter wrote:

> Ok but since you have a virtualized environment: Why not provide a fake
> home node with fake memory that could be anywhere? This would avoid the
> whole problem of supporting such a config at the kernel level.
> 

By acpi, the abstraction of a NUMA node can include any combination of 
cpus, memory, I/O resources, networking, or storage devices.  This allows 
two memoryless nodes, for example, to have different proximity to memory.