From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D09C1C433E0 for ; Fri, 12 Mar 2021 11:05:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 776F464FE0 for ; Fri, 12 Mar 2021 11:05:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 776F464FE0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:32852 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lKfbX-000795-K4 for qemu-devel@archiver.kernel.org; Fri, 12 Mar 2021 06:05:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52156) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lKfaJ-0006N9-OW for qemu-devel@nongnu.org; Fri, 12 Mar 2021 06:03:59 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:39812) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lKfaG-0007f1-Jl for qemu-devel@nongnu.org; Fri, 12 Mar 2021 06:03:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1615547035; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=WwrSiQgssTQnUB9/SUeJoVfQGJ/51nbihmH+EfIezpg=; b=QrxURUdkxhAHSsrT+jQRcQfJwZ4AeqMwx9rUzRYZ/IqerFt8IoAtsk6EdPKTWLrvt2oPHc 9Vyzoo4ItXlK5GWtgNAsM1mQ4j50mQJmAgYYC41ioKoCzC5lkno/eDOe6Qa8cL3maK538i 5KetDpkS301SQ8yhRRRzGsqHk3ZS9+k= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-301-BIGNtdMWMPOddS8mGHcyzw-1; Fri, 12 Mar 2021 06:03:52 -0500 X-MC-Unique: BIGNtdMWMPOddS8mGHcyzw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7B9A78015BD for ; Fri, 12 Mar 2021 11:03:51 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-141.ams2.redhat.com [10.36.112.141]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 478405C255; Fri, 12 Mar 2021 11:03:48 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 459C718000B4; Fri, 12 Mar 2021 12:03:44 +0100 (CET) Date: Fri, 12 Mar 2021 12:03:44 +0100 From: Gerd Hoffmann To: marcandre.lureau@redhat.com Subject: Re: [PATCH 14/27] ui: add a D-Bus display backend Message-ID: <20210312110344.7ssrivw5i72ac6xg@sirius.home.kraxel.org> References: <20210312100108.2706195-1-marcandre.lureau@redhat.com> <20210312100108.2706195-15-marcandre.lureau@redhat.com> MIME-Version: 1.0 In-Reply-To: <20210312100108.2706195-15-marcandre.lureau@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, > The "dbus" ui/display backend exports the QEMU consoles over a currently > unstable D-Bus protocol defined in ui/dbus-display1.xml (it is subject > to changes at each releases, so only client shipped with the same QEMU > release will be fully compatible). Hmm, so we get a new protocol here. A different idea which crossed my mind after reading the pipewire article of last weeks lwn.net edition: pipewire has video support. It also has audio support. gnome uses it for remote desktop support, so support for cursors and mouse/keyboard backchannel should be there too. In other words: pipewire should have all the pieces needed to build a qemu UI with it. I haven't found the time yet to investigate more, but integrating qemu with pipewire looks much more attractive to me than inventing a new protocol ... take care, Gerd