From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Roedel, Joerg" Subject: Re: [PATCH 1/6] KVM: SVM: Advance instruction pointer in dr_intercept Date: Tue, 22 Feb 2011 15:33:06 +0100 Message-ID: <20110222143306.GJ16508@amd.com> References: <1297272584-22689-1-git-send-email-joerg.roedel@amd.com> <1297272584-22689-2-git-send-email-joerg.roedel@amd.com> <20110222111408.GH16508@amd.com> <4D63C1CF.9000208@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Marcelo Tosatti , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Zachary Amsden To: Avi Kivity Return-path: Content-Disposition: inline In-Reply-To: <4D63C1CF.9000208@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On Tue, Feb 22, 2011 at 09:01:51AM -0500, Avi Kivity wrote: > On 02/22/2011 01:14 PM, Roedel, Joerg wrote: > > On Wed, Feb 09, 2011 at 12:29:39PM -0500, Joerg Roedel wrote: > > > In the dr_intercept function a new cpu-feature called > > > decode-assists is implemented and used when available. This > > > code-path does not advance the guest-rip causing the guest > > > to dead-loop over mov-dr instructions. This is fixed by this > > > patch. > > > > > > > Btw. Can you meanwhile apply this patch? It fixes a bug which sends the > > guest into an endless loop when decode assists is available on the host. > > Yes of course - should have done that myself. Applied now, and queued > for 2.6.38. Great, thanks. -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632