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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98F05C433EF for ; Fri, 8 Oct 2021 10:08:32 +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 0B7FB60F94 for ; Fri, 8 Oct 2021 10:08:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0B7FB60F94 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:58626 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mYmnn-0001GB-14 for qemu-devel@archiver.kernel.org; Fri, 08 Oct 2021 06:08:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56734) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mYmm2-00084a-Uh for qemu-devel@nongnu.org; Fri, 08 Oct 2021 06:06:44 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:21071) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mYmly-00060x-Oc for qemu-devel@nongnu.org; Fri, 08 Oct 2021 06:06:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1633687595; 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=2t7tQEuibjRY7EG6c/9yPGFUvp1Z5Hh+lm2g7RUhPjM=; b=Jq5Y32+CdJgDN0nEgtQJtH73y+tUwVa/YiFE5LnKZYEc1PlH7cJ7MmThUDnwSwZSpewv1B bQNqK1xosT/R5pj5ayGRczqKzjg4BJ2S1yCdnTlQJ5OQQpF1mePeetUkPRU0aUxRR+Zq3f e6GJBjmA2Hi9p5apuVejiWUmECPuSGY= 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-390-cP8TEcVIMbWomPXB4KKnXA-1; Fri, 08 Oct 2021 06:06:30 -0400 X-MC-Unique: cP8TEcVIMbWomPXB4KKnXA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7AA8610A8E01 for ; Fri, 8 Oct 2021 10:06:29 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-14.ams2.redhat.com [10.36.112.14]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5F7FD5D740; Fri, 8 Oct 2021 10:06:25 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id D6203113865F; Fri, 8 Oct 2021 12:06:23 +0200 (CEST) From: Markus Armbruster To: Paolo Bonzini Subject: Re: QAPI sync meeting References: <87ee97y3q5.fsf@dusky.pond.sub.org> <3abc4e8e-5657-14bb-ba89-5b7669c01201@redhat.com> Date: Fri, 08 Oct 2021 12:06:23 +0200 In-Reply-To: <3abc4e8e-5657-14bb-ba89-5b7669c01201@redhat.com> (Paolo Bonzini's message of "Thu, 7 Oct 2021 12:23:58 +0200") Message-ID: <87bl3z96g0.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.05, 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_H2=-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: Kevin Wolf , "Daniel P. =?utf-8?Q?Berrang=C3=A9?=" , John Snow , qemu-devel , =?utf-8?Q?Marc-Andr?= =?utf-8?Q?=C3=A9?= Lureau Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Paolo Bonzini writes: > On 07/10/21 12:01, Kevin Wolf wrote: >> * -chardev: I have patches that QAPIfy the option based on >> aliases, >> getting rid of the old handwritten parser that is inconsistent with >> QMP in non-obvious ways and replacing it with translation to QMP >> (both using aliases and a little C code) that makes the differences >> obvious. >> First posted in November 2020, more details in the cover >> letter: >> https://patchew.org/QEMU/20201112175905.404472-1-kwolf@redhat.com/ >> Later versions (not yet posted as a series because I'm waiting >> for >> aliases) also make -chardev accept JSON syntax, which is what >> libvirt really wants to use. > > I'm still not sure about this... It's an awful lot of code if the > aliases are only used by -chardev, We might use them for replacing other ad hoc parsers. We have a bunch, but -chardev's one is perhaps the worst one. Whether aliases could be useful for replacing others is not yet clear. I initially hoped that they could help us clean up QMP some, but further (and sadly much later) thought led me to obstacles. > and I'd rather use > -object/object-add for chardevs if that's at all possible. How far are we from making -object the preferred machine-friendly interface for creating character devices?