From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758099AbYAZB5d (ORCPT ); Fri, 25 Jan 2008 20:57:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755500AbYAZB5Y (ORCPT ); Fri, 25 Jan 2008 20:57:24 -0500 Received: from mga02.intel.com ([134.134.136.20]:10932 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755459AbYAZB5W convert rfc822-to-8bit (ORCPT ); Fri, 25 Jan 2008 20:57:22 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,253,1199692800"; d="scan'208";a="255208807" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8BIT Subject: RE: [kvm-devel] [PATCH][RFC] SVM: Add Support for Nested Paging in AMD Fam16 CPUs Date: Fri, 25 Jan 2008 17:57:21 -0800 Message-ID: <2D848F959C03D945A84E9EDE7F7BFE42740228@orsmsx424.amr.corp.intel.com> In-Reply-To: <1201294393-22613-1-git-send-email-joerg.roedel@amd.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [kvm-devel] [PATCH][RFC] SVM: Add Support for Nested Paging in AMD Fam16 CPUs Thread-Index: AchflM3LdROw71pwSJeL47zQim9gogAKOf8A References: <1201294393-22613-1-git-send-email-joerg.roedel@amd.com> From: "Nakajima, Jun" To: "Joerg Roedel" , "Avi Kivity" , , X-OriginalArrivalTime: 26 Jan 2008 01:57:21.0985 (UTC) FILETIME=[CA242310:01C85FBE] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Joerg Roedel wrote: > Hi, > > here is the first release of patches for KVM to support the Nested Paging > (NPT) feature of AMD QuadCore CPUs for comments and public testing. This > feature improves the guest performance significantly. I measured an > improvement of around 17% using kernbench in my first tests. > > This patch series is basically tested with Linux guests (32 bit legacy > paging, 32 bit PAE paging and 64 bit Long Mode). Also tested with Windows > Vista 32 bit and 64 bit. All these guests ran successfully with these > patches. The patch series only enables NPT for 64 bit Linux hosts at the > moment. > > Please give these patches a good and deep testing. I hope we have this > patchset ready for merging soon. Good. We also ported the EPT patch for Xen to KVM, which we submitted last year. We've been cleaning up the patch with Avi. We are working on live migration support now, and we'll submit the patch once it's done. So please stay tuned. > > Joerg > Jun --- Intel Open Source Technology Center From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Nakajima, Jun" Subject: Re: [PATCH][RFC] SVM: Add Support for Nested Paging in AMD Fam16 CPUs Date: Fri, 25 Jan 2008 17:57:21 -0800 Message-ID: <2D848F959C03D945A84E9EDE7F7BFE42740228@orsmsx424.amr.corp.intel.com> References: <1201294393-22613-1-git-send-email-joerg.roedel@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Joerg Roedel" , "Avi Kivity" , , Return-path: Content-class: urn:content-classes:message In-Reply-To: <1201294393-22613-1-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Joerg Roedel wrote: > Hi, > > here is the first release of patches for KVM to support the Nested Paging > (NPT) feature of AMD QuadCore CPUs for comments and public testing. This > feature improves the guest performance significantly. I measured an > improvement of around 17% using kernbench in my first tests. > > This patch series is basically tested with Linux guests (32 bit legacy > paging, 32 bit PAE paging and 64 bit Long Mode). Also tested with Windows > Vista 32 bit and 64 bit. All these guests ran successfully with these > patches. The patch series only enables NPT for 64 bit Linux hosts at the > moment. > > Please give these patches a good and deep testing. I hope we have this > patchset ready for merging soon. Good. We also ported the EPT patch for Xen to KVM, which we submitted last year. We've been cleaning up the patch with Avi. We are working on live migration support now, and we'll submit the patch once it's done. So please stay tuned. > > Joerg > Jun --- Intel Open Source Technology Center ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/