From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44069) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eqEGa-00018Z-47 for qemu-devel@nongnu.org; Mon, 26 Feb 2018 03:36:13 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eqEGW-0005km-VP for qemu-devel@nongnu.org; Mon, 26 Feb 2018 03:36:12 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:53364 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eqEGW-0005kV-Qc for qemu-devel@nongnu.org; Mon, 26 Feb 2018 03:36:08 -0500 Date: Mon, 26 Feb 2018 09:35:51 +0100 From: Gerd Hoffmann Message-ID: <20180226083551.dingmvxfgqydw35a@sirius.home.kraxel.org> References: <20180219111458.25983-1-kraxel@redhat.com> <20180219151649.13a197f9@w520.home> <20180220102814.rtcvsrsdtdndcfez@sirius.home.kraxel.org> <20180222092811.0a705b9e@w520.home> <20180223090517.beti6t5grnxxhlwq@sirius.home.kraxel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180223090517.beti6t5grnxxhlwq@sirius.home.kraxel.org> Subject: Re: [Qemu-devel] [PATCH v4 0/7] vfio: add display support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alex Williamson Cc: Kirti Wankhede , intel-gvt-dev@lists.freedesktop.org, qemu-devel@nongnu.org, Tina Zhang On Fri, Feb 23, 2018 at 10:05:17AM +0100, Gerd Hoffmann wrote: > > Hi Gerd, > > > > It's a little bit concerning that the only way we can test the > > region-based display support is with proprietary drivers that nobody > > but NVIDIA has at this point. Have you considered adding region-based > > display support to the mdev sample tty driver? I know it sounds > > ridiculous for a serial device to have a display, but the vfio display > > region support isn't really tied to the functionality of the base mdev > > device. We could have it simply display a static test pattern, just so > > we can test the end to end code path without a dependency on a closed > > vendor driver. > > Hmm, have to think about that. Some way to change the display content > would be nice as you can see whenever display updates are working then. https://www.kraxel.org/cgit/linux/log/?h=vfio-sample-display Comes with host mdev driver and guest framebuffer driver. enjoy, Gerd