From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:45367) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rq7cP-0002nV-1U for qemu-devel@nongnu.org; Wed, 25 Jan 2012 13:30:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Rq7cL-0003JJ-5b for qemu-devel@nongnu.org; Wed, 25 Jan 2012 13:30:48 -0500 Received: from cantor2.suse.de ([195.135.220.15]:52520 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rq7cK-0003JD-Ve for qemu-devel@nongnu.org; Wed, 25 Jan 2012 13:30:45 -0500 Message-ID: <4F2049D4.7000404@suse.de> Date: Wed, 25 Jan 2012 19:28:36 +0100 From: =?ISO-8859-15?Q?Andreas_F=E4rber?= MIME-Version: 1.0 References: <1327408760-3666-1-git-send-email-peter.maydell@linaro.org> <1327408760-3666-8-git-send-email-peter.maydell@linaro.org> In-Reply-To: <1327408760-3666-8-git-send-email-peter.maydell@linaro.org> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH v2 7/9] hw/vexpress.c: Instantiate the motherboard CLCD List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: qemu-devel@nongnu.org, patches@linaro.org Am 24.01.2012 13:39, schrieb Peter Maydell: > Instantiate the CLCD on the vexpress motherboard as well as one on > the daughterboard -- the A15 daughterboard does not have a CLCD > and so relies on the motherboard one. >=20 > At the moment QEMU doesn't provide infrastructure for selecting > which display device gets to actually show graphics -- the first > one registered is it. Fortunately this works for the major use > case (Linux): if the daughterboard has a CLCD it will come first > and be used, otherwise we fall back to the motherboard CLCD. > So we don't (currently) need to implement the control register > which allows software to tell the mux which video output to pass > through to the outside world. >=20 > Signed-off-by: Peter Maydell Reviewed-by: Andreas F=E4rber I do hope we find a solution to deal with n displays in the future. I consider that a post-QOM topic and maybe Anthony's planned DisplayState refactoring helps with that. The Origen Board has (provisions for) an LCD in addition to HDMI output, for instance. Andreas --=20 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imend=F6rffer; HRB 16746 AG N=FCrnbe= rg