Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755701AbXJ3LfK (ORCPT ); Tue, 30 Oct 2007 07:35:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753985AbXJ3Ley (ORCPT ); Tue, 30 Oct 2007 07:34:54 -0400 Received: from gecko.sbs.de ([194.138.37.40]:20379 "EHLO gecko.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753926AbXJ3Lew (ORCPT ); Tue, 30 Oct 2007 07:34:52 -0400 Message-ID: <472716C1.1090102@siemens.com> Date: Tue, 30 Oct 2007 12:34:25 +0100 From: Jan Kiszka User-Agent: Thunderbird 2.0.0.6 (X11/20071022) MIME-Version: 1.0 To: Avi Kivity CC: kvm-devel@lists.sourceforge.net, Carsten Emde , Linux Kernel Mailing List Subject: Re: [kvm-devel] 2.6.23.1-rt4 and kvm 48 References: <9c21eeae0710290709x527cf4fcq52bb410907ff496@mail.gmail.com> <4726B088.1010709@qumranet.com> <4726DF66.4000000@osadl.org> <4726FE2A.1040607@siemens.com> <47271057.5040102@qumranet.com> In-Reply-To: <47271057.5040102@qumranet.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1027 Lines: 32 Avi Kivity wrote: > Jan Kiszka wrote: >> Interesting result - you've read about the wbinvd issues? Is there no >> wbinvd in the bios shipped with older kvm? Which VM extension did you >> test, both Intel and AMD? I would bet that your X issues are due to the >> same effect. X startup/shutdown involves a lot of wbinvd calls on my >> test boxes. >> >> > > kvm.git now traps invd and wbinvd on amd, so there shouldn't be any > issues there. So kvm can then simply ignore the instructions, or what does it do about them? I recall some replies in the related thread that some more work may be required. > I hope that Intel will add similar traps in future > iterations of VT. Yep. Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/