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Date: Tue, 08 Apr 2014 13:59:09 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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Subject: Re: [PATCH 2/3] x86: Define _PAGE_NUMA with unused physical address
 bits PMD and PTE levels
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To: Steven Noonan <steven@uplinklabs.net>
Cc: Mel Gorman <mgorman@suse.de>, Cyrill Gorcunov <gorcunov@gmail.com>, David Vrabel <david.vrabel@citrix.com>, Linus Torvalds <torvalds@linux-foundation.org>, Ingo Molnar <mingo@kernel.org>, Rik van Riel <riel@redhat.com>, Andrew Morton <akpm@linux-foundation.org>, Peter Zijlstra <peterz@infradead.org>, Andrea Arcangeli <aarcange@redhat.com>, Linux-MM <linux-mm@kvack.org>, Linux-X86 <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>, Pavel Emelyanov <xemul@parallels.com>

On 04/08/2014 01:51 PM, Steven Noonan wrote:
> On Tue, Apr 8, 2014 at 8:16 AM, H. Peter Anvin <hpa@zytor.com> wrote:
>> <snark>
>>
>> Of course, it would also be preferable if Amazon (or anything else) didn't need Xen PV :(
> 
> Well Amazon doesn't expose NUMA on PV, only on HVM guests.
> 

Yes, but Amazon is one of the main things keeping Xen PV alive as far as
I can tell, which means the support gets built in, and so on.

	-hpa


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