From patchwork Wed Feb 20 08:47:52 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 10821731 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 697871399 for ; Wed, 20 Feb 2019 08:51:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 518E62A8D9 for ; Wed, 20 Feb 2019 08:51:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 43C622D05A; Wed, 20 Feb 2019 08:51:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D69D82A8D9 for ; Wed, 20 Feb 2019 08:51:14 +0000 (UTC) Received: from localhost ([127.0.0.1]:36271 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwNb0-0008PX-8p for patchwork-qemu-devel@patchwork.kernel.org; Wed, 20 Feb 2019 03:51:14 -0500 Received: from eggs.gnu.org ([209.51.188.92]:53338) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwNY1-00060G-Md for qemu-devel@nongnu.org; Wed, 20 Feb 2019 03:48:10 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gwNXv-0008N1-Q5 for qemu-devel@nongnu.org; Wed, 20 Feb 2019 03:48:09 -0500 Received: from mx1.redhat.com ([209.132.183.28]:37324) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gwNXv-0008Lb-EB for qemu-devel@nongnu.org; Wed, 20 Feb 2019 03:48:03 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 70BDB41A5A; Wed, 20 Feb 2019 08:48:01 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-228.ams2.redhat.com [10.36.116.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id C37A318352; Wed, 20 Feb 2019 08:47:54 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 1465411AB7; Wed, 20 Feb 2019 09:47:54 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Wed, 20 Feb 2019 09:47:52 +0100 Message-Id: <20190220084753.9130-3-kraxel@redhat.com> In-Reply-To: <20190220084753.9130-1-kraxel@redhat.com> References: <20190220084753.9130-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 20 Feb 2019 08:48:01 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 2/3] vfio/display: add xres + yres properties X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alex Williamson , intel-gvt-dev@lists.freedesktop.org, Gerd Hoffmann Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This allows configure the display resolution which the vgpu should use. The information will be passed to the guest using EDID, so the mdev driver must support the vfio edid region for this to work. Signed-off-by: Gerd Hoffmann --- hw/vfio/pci.h | 2 ++ hw/vfio/display.c | 16 ++++++++++++++-- hw/vfio/pci.c | 2 ++ 3 files changed, 18 insertions(+), 2 deletions(-) diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index b1ae4c0754..c11c3f1670 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -149,6 +149,8 @@ typedef struct VFIOPCIDevice { #define VFIO_FEATURE_ENABLE_IGD_OPREGION \ (1 << VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT) OnOffAuto display; + uint32_t display_xres; + uint32_t display_yres; int32_t bootindex; uint32_t igd_gms; OffAutoPCIBAR msix_relo; diff --git a/hw/vfio/display.c b/hw/vfio/display.c index ed2eb19ea3..7b9b604a64 100644 --- a/hw/vfio/display.c +++ b/hw/vfio/display.c @@ -46,8 +46,8 @@ static void vfio_display_edid_update(VFIOPCIDevice *vdev, bool enabled, qemu_edid_info edid = { .maxx = dpy->edid_regs->max_xres, .maxy = dpy->edid_regs->max_yres, - .prefx = prefx, - .prefy = prefy, + .prefx = prefx ?: vdev->display_xres, + .prefy = prefy ?: vdev->display_yres, }; dpy->edid_regs->link_state = VFIO_DEVICE_GFX_LINK_STATE_DOWN; @@ -117,6 +117,10 @@ static void vfio_display_edid_init(VFIOPCIDevice *vdev) VFIO_REGION_SUBTYPE_GFX_EDID, &dpy->edid_info); if (ret) { + if (vdev->display_xres || vdev->display_yres) { + warn_report("vfio: no edid support available, " + "xres and yres properties have no effect."); + } return; } @@ -128,6 +132,14 @@ static void vfio_display_edid_init(VFIOPCIDevice *vdev) pread_field(fd, dpy->edid_info, dpy->edid_regs, max_yres); dpy->edid_blob = g_malloc0(dpy->edid_regs->edid_max_size); + /* if xres + yres properties are unset use the maximum resolution */ + if (!vdev->display_xres) { + vdev->display_xres = dpy->edid_regs->max_xres; + } + if (!vdev->display_yres) { + vdev->display_yres = dpy->edid_regs->max_yres; + } + vfio_display_edid_update(vdev, true, 0, 0); return; diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index dd12f36391..edb8394038 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3182,6 +3182,8 @@ static Property vfio_pci_dev_properties[] = { DEFINE_PROP_STRING("sysfsdev", VFIOPCIDevice, vbasedev.sysfsdev), DEFINE_PROP_ON_OFF_AUTO("display", VFIOPCIDevice, display, ON_OFF_AUTO_OFF), + DEFINE_PROP_UINT32("xres", VFIOPCIDevice, display_xres, 0), + DEFINE_PROP_UINT32("yres", VFIOPCIDevice, display_yres, 0), DEFINE_PROP_UINT32("x-intx-mmap-timeout-ms", VFIOPCIDevice, intx.mmap_timeout, 1100), DEFINE_PROP_BIT("x-vga", VFIOPCIDevice, features,