From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Egger Subject: Re: [PATCH 0/4] CPU online/offline support in Xen Date: Tue, 9 Sep 2008 11:06:41 +0200 Message-ID: <200809091106.42116.Christoph.Egger@amd.com> References: <823A93EED437D048963A3697DB0E35DE01BE83C8@pdsmsx414.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <823A93EED437D048963A3697DB0E35DE01BE83C8@pdsmsx414.ccr.corp.intel.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com Cc: Gavin Maltby , "Shan, Haitao" , Keir Fraser List-Id: xen-devel@lists.xenproject.org SUN also has code for physical cpu hotplugging. So this is duplicate work now. Please get into contact with each other and merge your patches. Christoph On Tuesday 09 September 2008 10:58:41 Shan, Haitao wrote: > Hi, Keir, > > The following patches enable Xen to online/offline a physical CPU. This > feature will be needed by possibly CPU hot-plug and RAS features. > Some code of cpu online/offline is already in Xen, ever since S3 feature > was added to Xen. This patch series only adds the missing part. > > Note: We only add the code to implement the function that actually > online/offline a CPU. The patches for tests are only served as a test > purpose. We do the tests by hooking online/offline decision to vcpu > online/offline path in Dom0. Thus, writes to > /sys/devices/system/cpu/cpuX/online will online/offline the vcpu, as > well as physical cpu. > > > Here is the description of the patches. > > cpu_offline.patch Implements cpu offline feature > cpu_online.patch Implements cpu online feature > > cpu_online_offline_test.patch Used for tests -- Xen part > cpu_online_offline_kernel.patch Used for tests -- Dom0 kernel part > > > Best Regards > Haitao Shan =2D-=20 AMD Saxony, Dresden, Germany Operating System Research Center Legal Information: AMD Saxony Limited Liability Company & Co. KG Sitz (Gesch=E4ftsanschrift): Wilschdorfer Landstr. 101, 01109 Dresden, Deutschland Registergericht Dresden: HRA 4896 vertretungsberechtigter Komplement=E4r: AMD Saxony LLC (Sitz Wilmington, Delaware, USA) Gesch=E4ftsf=FChrer der AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy