Re: [Xen-devel] [PATCH RFC 1/2] linux/vnuma: vnuma support for pv guest

[Matt Wilson <msw@xxxxxxxxxx>]

On Tue, Aug 27, 2013 at 04:52:59AM -0400, Elena Ufimtseva wrote:
> Uses subop hypercall to request XEN about vnuma topology.
> Sets the memory blocks (aligned by XEN), cpus, distance table
> on boot. NUMA support should be compiled in kernel.

Are we *really sure* that we want to go this route for PV vNUMA?
Couldn't we build just enough(tm) of the ACPI tables to express the
NUMA topology when constructing the domain? That's what we do for the
e820 map.

--msw

> NUMA support should be compiled in kernel.
> 
> Memory blocks are aligned by xen. Xen is aware of guest initial
> RAM layout.
> If the memory blocks are incorrect, call for default linux numa
> dummy init.
> 
> Requires XEN with vNUMA support.
> 
> Applies to 3.10 git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
> latest commit: 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376

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