From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1L2nyE-00058A-PT for qemu-devel@nongnu.org; Wed, 19 Nov 2008 09:23:54 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1L2nyD-000573-5i for qemu-devel@nongnu.org; Wed, 19 Nov 2008 09:23:54 -0500 Received: from [199.232.76.173] (port=43491 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1L2nyD-00056t-0H for qemu-devel@nongnu.org; Wed, 19 Nov 2008 09:23:53 -0500 Received: from mx2.redhat.com ([66.187.237.31]:53814) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1L2nyC-0002oL-Jf for qemu-devel@nongnu.org; Wed, 19 Nov 2008 09:23:52 -0500 Received: from int-mx2.corp.redhat.com (int-mx2.corp.redhat.com [172.16.27.26]) by mx2.redhat.com (8.13.8/8.13.8) with ESMTP id mAJENpWq009606 for ; Wed, 19 Nov 2008 09:23:51 -0500 Message-ID: <49242173.8020408@redhat.com> Date: Wed, 19 Nov 2008 16:23:47 +0200 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH 0/6] New shot at VGA optimization References: <1227108377-8442-1-git-send-email-glommer@redhat.com> In-Reply-To: <1227108377-8442-1-git-send-email-glommer@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Glauber Costa wrote: > Hi, > > The last version of the vga patch brought hope of a clean interface > for the vga optimization. However, it failed in some guests due to > the explicit need for alias, contrary to what we used to think. > > This needs arises from a KVM host bug (http://lkml.org/lkml/2008/11/17/496) > > However, even if it gets eventually fixed, any qemu running on an > old enough kernel will fail. Because of that, this series introduces > implicit aliasing support for kvm first, to just then implement the vga > optimization. > > The main idea is that qemu should never need to know about our > dirty trick. > > Hope I didn't miss anything. > > Looks good. -- error compiling committee.c: too many arguments to function