From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Roedel, Joerg" Subject: Re: [PATCH] x86, nmi: workaround sti; hlt race vs nmi; intr Date: Tue, 28 Sep 2010 11:22:59 +0200 Message-ID: <20100928092258.GJ9817@amd.com> References: <1284913699-14986-1-git-send-email-avi@redhat.com> <4CA057EA.7000609@redhat.com> <768A5DC0-131A-4BC8-ADDD-044D8169545E@suse.de> <61284934-1AD3-4F7A-9488-D46FCEE9B753@suse.de> <4CA06147.7080805@redhat.com> <4CA06373.5030501@redhat.com> <4CA112D1.2020004@zytor.com> <4CA1AC50.7000801@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: "H. Peter Anvin" , Alexander Graf , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" To: Avi Kivity Return-path: Received: from va3ehsobe006.messaging.microsoft.com ([216.32.180.16]:48918 "EHLO VA3EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753586Ab0I1JWs (ORCPT ); Tue, 28 Sep 2010 05:22:48 -0400 Content-Disposition: inline In-Reply-To: <4CA1AC50.7000801@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Tue, Sep 28, 2010 at 04:50:24AM -0400, Avi Kivity wrote: > On 09/27/2010 11:55 PM, H. Peter Anvin wrote: > > On 09/27/2010 02:27 AM, Avi Kivity wrote: > > > > > > I don't have write permissions for the spec. If you can verify that all > > > existing and future hardware will mask NMI after STI and convince the > > > spec owners to update the specifications, I'm all for it; it's certainly > > > a cleaner solution. > > > > > > > I'm trying to see if this is doable. As you can well imagine, though, > > it takes time. > > Joerg, can you look at this from the AMD side? Yes, I will discuss this with the hardware peoples. Will take some time here too. Joerg -- 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