From patchwork Fri Oct 5 12:51:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 10627957 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 2C99E1515 for ; Fri, 5 Oct 2018 12:52:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1A5AE28FD2 for ; Fri, 5 Oct 2018 12:52:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0E77228FF7; Fri, 5 Oct 2018 12:52:40 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B687828FD2 for ; Fri, 5 Oct 2018 12:52:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728341AbeJETvI (ORCPT ); Fri, 5 Oct 2018 15:51:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59426 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727701AbeJETvI (ORCPT ); Fri, 5 Oct 2018 15:51:08 -0400 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 AE4227F6B0; Fri, 5 Oct 2018 12:52:32 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-29.ams2.redhat.com [10.36.116.29]) by smtp.corp.redhat.com (Postfix) with ESMTP id D5B1E5D9C8; Fri, 5 Oct 2018 12:52:25 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 0A989982BD; Fri, 5 Oct 2018 14:52:25 +0200 (CEST) From: Gerd Hoffmann To: virtio-dev@redhat.com Cc: kvm@vger.kernel.org, dri-devel@lists.freedesktop.org, Gerd Hoffmann , David Airlie , "Michael S. Tsirkin" , Jason Wang , virtualization@lists.linux-foundation.org (open list:VIRTIO GPU DRIVER), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2] virtio-gpu: add VIRTIO_GPU_F_EDID feature Date: Fri, 5 Oct 2018 14:51:54 +0200 Message-Id: <20181005125154.19824-1-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 [10.5.110.25]); Fri, 05 Oct 2018 12:52:32 +0000 (UTC) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The feature allows the guest request an EDID blob (describing monitor capabilities) for a given scanout (aka virtual monitor connector). It brings a new command message, which has just a scanout field (beside the standard virtio-gpu header) and a response message which carries the EDID data. Signed-off-by: Gerd Hoffmann Reviewed-by: Dave Airlie --- include/uapi/linux/virtio_gpu.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h index f43c3c6171..1cef1ff339 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -41,6 +41,7 @@ #include #define VIRTIO_GPU_F_VIRGL 0 +#define VIRTIO_GPU_F_EDID 1 enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED = 0, @@ -56,6 +57,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING, VIRTIO_GPU_CMD_GET_CAPSET_INFO, VIRTIO_GPU_CMD_GET_CAPSET, + VIRTIO_GPU_CMD_GET_EDID, /* 3d commands */ VIRTIO_GPU_CMD_CTX_CREATE = 0x0200, @@ -76,6 +78,7 @@ enum virtio_gpu_ctrl_type { VIRTIO_GPU_RESP_OK_DISPLAY_INFO, VIRTIO_GPU_RESP_OK_CAPSET_INFO, VIRTIO_GPU_RESP_OK_CAPSET, + VIRTIO_GPU_RESP_OK_EDID, /* error responses */ VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200, @@ -291,6 +294,20 @@ struct virtio_gpu_resp_capset { __u8 capset_data[]; }; +/* VIRTIO_GPU_CMD_GET_EDID */ +struct virtio_gpu_get_edid { + struct virtio_gpu_ctrl_hdr hdr; + __le32 scanout; +}; + +/* VIRTIO_GPU_RESP_OK_EDID */ +struct virtio_gpu_resp_edid { + struct virtio_gpu_ctrl_hdr hdr; + __le32 scanout; + __le32 size; + __u8 edid[1024]; +}; + #define VIRTIO_GPU_EVENT_DISPLAY (1 << 0) struct virtio_gpu_config {