From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756298AbZFVJkn (ORCPT ); Mon, 22 Jun 2009 05:40:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755706AbZFVJkd (ORCPT ); Mon, 22 Jun 2009 05:40:33 -0400 Received: from outbound-dub.frontbridge.com ([213.199.154.16]:44521 "EHLO IE1EHSOBE005.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753575AbZFVJkc convert rfc822-to-8bit (ORCPT ); Mon, 22 Jun 2009 05:40:32 -0400 X-SpamScore: -36 X-BigFish: VPS-36(zz1432R98dR936eN1805M9371Pzz1202hzzz32i6bh17ch43j61h) X-Spam-TCS-SCL: 0:0 X-WSS-ID: 0KLMW72-04-U0P-01 Date: Mon, 22 Jun 2009 11:40:13 +0200 From: Joerg Roedel To: Avi Kivity CC: Marcelo Tosatti , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/8 v3] KVM support for 1GB pages Message-ID: <20090622094013.GD5139@amd.com> References: <1245417389-5527-1-git-send-email-joerg.roedel@amd.com> <4A3CC1FA.2070900@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline In-Reply-To: <4A3CC1FA.2070900@redhat.com> User-Agent: Mutt/1.5.19 (2009-01-05) Content-Transfer-Encoding: 8BIT X-OriginalArrivalTime: 22 Jun 2009 09:40:13.0563 (UTC) FILETIME=[713464B0:01C9F31D] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 20, 2009 at 02:03:22PM +0300, Avi Kivity wrote: > On 06/19/2009 04:16 PM, Joerg Roedel wrote: >> Hi, >> >> this is the third version of the patches for KVM to support 1GB pages. Changes >> to the last version include: >> >> - changed reporting of 1GB page support to userspace to use >> SUPPORTED_CPUID ioctl >> - added support for 1GB pages to the software page walker code too >> >> This code still only can make use of 1GB pages with nested paging enabled. I >> will give the shadow paging code another debug round soon. Please comment or >> consider to apply these patches. >> >> > > Can you describe how the code fails with shadow paging? After the rework it even fails to boot a guest with gbpages enabled. This week is a bit tight but I will debug this further next week. Joerg -- | Advanced Micro Devices GmbH Operating | Karl-Hammerschmidt-Str. 34, 85609 Dornach bei München System | Research | Geschäftsführer: Thomas M. McCoy, Giuliano Meroni Center | Sitz: Dornach, Gemeinde Aschheim, Landkreis München | Registergericht München, HRB Nr. 43632