From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:41945) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Su1qg-0003uA-J9 for qemu-devel@nongnu.org; Wed, 25 Jul 2012 09:42:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Su1qf-0005fs-1Z for qemu-devel@nongnu.org; Wed, 25 Jul 2012 09:41:58 -0400 Received: from gate.crashing.org ([63.228.1.57]:47567) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Su1qe-0005fU-PD for qemu-devel@nongnu.org; Wed, 25 Jul 2012 09:41:56 -0400 Message-ID: <1343223712.3715.50.camel@pasglop> From: Benjamin Herrenschmidt Date: Wed, 25 Jul 2012 23:41:52 +1000 In-Reply-To: <500FEB07.5010009@redhat.com> References: <1343188660.3715.41.camel@pasglop> <500FC9F8.6010002@redhat.com> <1343213618.3715.48.camel@pasglop> <500FEB07.5010009@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Subject: Re: [Qemu-devel] vga-pci and MMIO BAR List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: qemu-devel@nongnu.org On Wed, 2012-07-25 at 15:48 +0300, Avi Kivity wrote: > >> If not, we can add a second BAR, but it should disappear when running an > >> older machine type. > > > > Well, the IO ports in legacy space are still there. We can also make the > > "register BAR" exist in both mode or we can add a second BAR and have > > x86 "prefer" IO... whatever rocks your boat as long as it's a BAR, it's > > the legacy hole that's annoying for me :-) > > A guest created with -M old must look exactly the same as it did in an > older version of qemu, no extra BARs. Why ? Who cares ? Especially with vga -std which nobody uses in practice on x86... Cheers, Ben.