From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <dario.faggioli@citrix.com>
Subject: Re: [PATCH v3 1/3] x86/numa: Allow arbitrary value of
 PXM in PXM<->node mapping
Date: Thu, 26 Feb 2015 09:06:22 +0000
Message-ID: <1424941579.4742.201.camel@citrix.com>
References: <1424907714-10527-1-git-send-email-boris.ostrovsky@oracle.com>
	<1424907714-10527-2-git-send-email-boris.ostrovsky@oracle.com>
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To: "boris.ostrovsky@oracle.com" <boris.ostrovsky@oracle.com>
Cc: Kevin Tian <kevin.tian@intel.com>, "Keir (Xen.org)" <keir@xen.org>, Ian Campbell <Ian.Campbell@citrix.com>, Andrew Cooper <Andrew.Cooper3@citrix.com>, "Tim (Xen.org)" <tim@xen.org>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, Stefano Stabellini <Stefano.Stabellini@citrix.com>, "jbeulich@suse.com" <jbeulich@suse.com>, "yang.z.zhang@intel.com" <yang.z.zhang@intel.com>
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On Wed, 2015-02-25 at 18:41 -0500, Boris Ostrovsky wrote:
> ACPI defines proximity domain identifier as a 32-bit integer. While
> in most cases the values will be zero-based this is not guaranteed,
> making current pxm2node[256] mapping structure not appropriate.
>=20
> We will instead use MAX_NUMNODES-sized array of struct pxm2node to
> store PXM-to-node mapping. To accommodate common case of zero-based
> and contiguios PXMs we will, whenever possible, try to use PXM as
> index into this array array for fast lookups.
>=20
                ^array for fast lookups.

Dario

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