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=-7.5 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,USER_AGENT_SANE_1 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 7B620C433DB for ; Fri, 29 Jan 2021 12:23:42 +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 D7CE064E2B for ; Fri, 29 Jan 2021 12:23:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D7CE064E2B 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]:34032 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l5SoO-0006tn-Ei for qemu-devel@archiver.kernel.org; Fri, 29 Jan 2021 07:23:40 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:44968) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l5Smd-0005Dr-7R for qemu-devel@nongnu.org; Fri, 29 Jan 2021 07:21:51 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:40428) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l5Smb-0007Li-Dj for qemu-devel@nongnu.org; Fri, 29 Jan 2021 07:21:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611922907; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=trspwgWqicUjObI+/ilPkerypKs4HtEjbjCXDHvd710=; b=ORh3A3GLZQ5qqvsYKze9gWaelOoSmf/9bOus7gUmkfmifh/IBxCfOevtPmcmd0mHEsQLWe YZfh88ZKkzvZ5AdTKUSM9CorYBOifbGaRGouyEZkrx6Q2eqM/p4RVFN+5n7l2mZtKANlL9 mz8xlFbSbxMuoJZyvMZTbSJDG2EI/Jc= 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-405-fAfB1avmP1SoNzYSrSfEGA-1; Fri, 29 Jan 2021 07:21:46 -0500 X-MC-Unique: fAfB1avmP1SoNzYSrSfEGA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 342518030B6; Fri, 29 Jan 2021 12:21:45 +0000 (UTC) Received: from redhat.com (ovpn-115-94.ams2.redhat.com [10.36.115.94]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 113D710016FE; Fri, 29 Jan 2021 12:21:39 +0000 (UTC) Date: Fri, 29 Jan 2021 12:21:37 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: =?utf-8?Q?Marc-Andr=C3=A9?= Lureau Subject: Re: vnc clipboard support Message-ID: <20210129122137.GA4008275@redhat.com> References: <20210128171224.exbklnwtyb232oe2@sirius.home.kraxel.org> <20210129112412.GH4001740@redhat.com> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.14.6 (2020-07-11) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=berrange@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=-0.249, 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: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: Gerd Hoffmann , QEMU Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Fri, Jan 29, 2021 at 03:58:00PM +0400, Marc-André Lureau wrote: > Hi > > On Fri, Jan 29, 2021 at 3:24 PM Daniel P. Berrangé wrote: > > > > On Fri, Jan 29, 2021 at 12:18:19AM +0400, Marc-André Lureau wrote: > > can have QEMU open the vsock device internally, it feels a bit silly to > > have one part of QEMU writing to a vsock device, and then another part > > of QEMU reading back from the very same device. Especially because you > > have now introduced the extra problem of having to allocate unique > > vsock addresses for each instance and deal with possibility of external > > apps maliciously trying to interact with your vsock backend. > > > > As above though, I think the way spice used virtio-serial was suboptimal > > and it should have had one extra virtio-serial device per seat. > > And per service? and libvirt to hotplug stuff? Sounds insane to me. > And what about services that need to handle several connections in the > guest. For example, the way spice-webdavd works is really a pain, it > has to multiplex guest connections over virtio-serial... All of this > would be so much simpler with a single vsock connection and some kind > of bus. I wasn't really suggesting it for something like spice-webdavd, just the spice agent functionality, which is not really connection-oriented stuff. ie its a simple RPC like service where there's only ever one client and server endpoint. spice-webdavd would clearly be better based on vsock, since it is inherantly a multi-connection architecture. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|