From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andre Przywara" Subject: Re: [PATCH 2/4] [HVM] introduce CPU affinity for allocate_physmap call Date: Wed, 15 Aug 2007 12:13:06 +0200 Message-ID: <46C2D1B2.2070203@amd.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: > I think we should add topology discovery hypercalls. Xen needs to know = this > stuff anyway, so we just provide a mechanism for guests to extract it. = An > alternative is to start exporting virtual ACPI tables to PV guests. I will look at this next. The HVM approach seemed to be easier from my=20 POV, but this NUMA propagation is also benefical for PV guests. Maybe=20 one should solve the whole NUMA-ballooning issue while looking at this. Regards, Andre. --=20 Andre Przywara AMD-Operating System Research Center (OSRC), Dresden, Germany Tel: +49 351 277-84917 ----to satisfy European Law for business letters: AMD Saxony Limited Liability Company & Co. KG Sitz (Gesch=E4ftsanschrift): Wilschdorfer Landstr. 101, 01109 Dresden,=20 Deutschland Registergericht Dresden: HRA 4896 vertretungsberechtigter Komplement=E4r: AMD Saxony LLC (Sitz Wilmington,=20 Delaware, USA) Gesch=E4ftsf=FChrer der AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy