From xen-devel-bounces@lists.xen.org Tue May 28 17:53:14 2013 Received: (at maildrop) by bugs.xenproject.org; 28 May 2013 16:53:14 +0000 Received: from lists.xen.org ([50.57.142.19]) by bugs.xenproject.org with esmtp (Exim 4.72) (envelope-from ) id 1UhN98-00034W-Ko for xen-devel-maildrop-Eithu9ie@bugs.xenproject.org; Tue, 28 May 2013 17:53:14 +0100 Received: from localhost ([127.0.0.1] helo=lists.xen.org) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1UhN73-0001m6-2A; Tue, 28 May 2013 16:51:05 +0000 Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1UhN71-0001lv-GX for xen-devel@lists.xen.org; Tue, 28 May 2013 16:51:03 +0000 Received: from [193.109.254.147:5880] by server-12.bemta-14.messagelabs.com id ED/24-15557-670E4A15; Tue, 28 May 2013 16:51:02 +0000 X-Env-Sender: Ian.Jackson@eu.citrix.com X-Msg-Ref: server-5.tower-27.messagelabs.com!1369759862!6323945!1 X-Originating-IP: [46.33.159.39] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogNDYuMzMuMTU5LjM5ID0+IDI2MzI1\n X-StarScan-Received: X-StarScan-Version: 6.9.6; banners=-,-,- X-VirusChecked: Checked Received: (qmail 15292 invoked from network); 28 May 2013 16:51:02 -0000 Received: from smtp.eu.citrix.com (HELO SMTP.EU.CITRIX.COM) (46.33.159.39) by server-5.tower-27.messagelabs.com with RC4-SHA encrypted SMTP; 28 May 2013 16:51:02 -0000 X-IronPort-AV: E=Sophos;i="4.87,758,1363132800"; d="scan'208";a="5061260" Received: from lonpmailmx01.citrite.net ([10.30.203.162]) by LONPIPO01.EU.CITRIX.COM with ESMTP/TLS/RC4-MD5; 28 May 2013 16:51:03 +0000 Received: from norwich.cam.xci-test.com (10.80.248.129) by smtprelay.citrix.com (10.30.203.162) with Microsoft SMTP Server id 8.3.298.1; Tue, 28 May 2013 17:51:01 +0100 Received: from mariner.cam.xci-test.com ([10.80.2.22] helo=mariner.uk.xensource.com ident=Debian-exim) by norwich.cam.xci-test.com with esmtp (Exim 4.72) (envelope-from ) id 1UhN6z-00013w-OT; Tue, 28 May 2013 16:51:01 +0000 Received: from iwj by mariner.uk.xensource.com with local (Exim 4.72) (envelope-from ) id 1UhN6z-0002pN-K8; Tue, 28 May 2013 17:51:01 +0100 From: Ian Jackson MIME-Version: 1.0 Message-ID: <20900.57461.535517.705987@mariner.uk.xensource.com> Date: Tue, 28 May 2013 17:51:01 +0100 To: George Dunlap In-Reply-To: <1369408859-2929-1-git-send-email-george.dunlap@eu.citrix.com> References: <1369408859-2929-1-git-send-email-george.dunlap@eu.citrix.com> X-Mailer: VM 8.1.0 under 23.2.1 (i486-pc-linux-gnu) Cc: Fabio Fantoni , Ian Campbell , xen-devel@lists.xen.org Subject: Re: [Xen-devel] [PATCH] libxl: Remove qxl support for the 4.3 release X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org George Dunlap writes ("[PATCH] libxl: Remove qxl support for the 4.3 release"): > The qxl drivers for Windows and Linux end up calling instructions > that cannot be used for MMIO at the moment. Just for the 4.3 release, > remove qxl support. > > This patch should be reverted as soon as the 4.4 development window opens. > > The issue in question: > > (XEN) emulate.c:88:d18 bad mmio size 16 > (XEN) io.c:201:d18 MMIO emulation failed @ 0033:7fd2de390430: f3 0f 6f > 19 41 83 e8 403 > > The instruction in question is "movdqu (%rcx),%xmm3". Xen knows how > to emulate it, but unfortunately %xmm3 is 16 bytes long, and the interface > between Xen and qemu at the moment would appear to only allow MMIO accesses > of 8 bytes. > > It's too late in the release cycle to find a fix or a workaround. Acked-by: Ian Jackson _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel