From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56682) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dXNT6-0004Me-AX for qemu-devel@nongnu.org; Tue, 18 Jul 2017 04:02:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dXNT1-00034R-GP for qemu-devel@nongnu.org; Tue, 18 Jul 2017 04:02:56 -0400 Message-ID: <1500364961.11997.10.camel@redhat.com> From: Andrea Bolognani Date: Tue, 18 Jul 2017 10:02:41 +0200 In-Reply-To: <68cfb52b-d4cc-1980-e6f5-a454baf4e2e5@linux.vnet.ibm.com> References: <149910050540.26371.12575732020425703531.stgit@bahia.lan> <20170704072901.GA2180@umbus.fritz.box> <20170704104722.499d4e86@bahia.lan> <1499856934.13989.38.camel@redhat.com> <68cfb52b-d4cc-1980-e6f5-a454baf4e2e5@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH] spapr: make default PHB optionnal List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Shivaprasad G Bhat , Greg Kurz , David Gibson Cc: qemu-devel@nongnu.org, qemu-ppc@nongnu.org, libvir-list@redhat.com On Wed, 2017-07-12 at 17:09 +0530, Shivaprasad G Bhat wrote: > Setting numa_node for emulated devices is the benefit for now. On x86, = I > figured there is > no way to set the numa_node for the root controller and the emulated > devices sitting there > all have numa_node set to -1. Only the devices on the pxb can have a > sensible value specified. > Does it mean, the emulated devices/drivers don't care about the > numa_node they are on? >=C2=A0 > Would it be fine on PPC to disallow setting the NUMA node for the > default PHB because that is where > all the emulated devices sit ? I was not aware of that limitation for x86 guests. If that's the case, then I would say it's perfectly okay to just disallow setting the NUMA node for the default PHB, at least for the time being. --=C2=A0 Andrea Bolognani / Red Hat / Virtualization