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 lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 08032C43458 for ; Thu, 2 Jul 2026 16:07:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wfJvx-0003Xr-JX; Thu, 02 Jul 2026 12:06:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wfJvX-0002ia-VB for qemu-devel@nongnu.org; Thu, 02 Jul 2026 12:06:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wfJvW-0007HI-76 for qemu-devel@nongnu.org; Thu, 02 Jul 2026 12:06:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1783008368; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lPZnbrDhB+Q5ldx5jviw8t6GxYUdKoMeyIkQvyRqpfc=; b=Rq/quAvf8MZpi69HmF3KngS/0XQA0XhBP6/bOwY/OU1alkaFl9AMKEM6cZyaDCam3vt5+f iaXgTj7kKOEz3j0kBQgG9QDXMxoSWGr/D+d+SXF9u8Qwy+Afl8ldlbvI8OHnO8iwFAuHS0 FFcLuQ0z9kI1Yj4SffGGNI0hcvVc4bk= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-197-rGOT1OePOwKyRASF_OlJ7Q-1; Thu, 02 Jul 2026 12:06:05 -0400 X-MC-Unique: rGOT1OePOwKyRASF_OlJ7Q-1 X-Mimecast-MFC-AGG-ID: rGOT1OePOwKyRASF_OlJ7Q_1783008364 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 12C601944AB2; Thu, 2 Jul 2026 16:06:04 +0000 (UTC) Received: from berrange.com (unknown [10.44.33.186]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id CC840194510E; Thu, 2 Jul 2026 16:06:00 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Paolo Bonzini , "Dr. David Alan Gilbert" , Markus Armbruster , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Christian Brauner , devel@lists.libvirt.org, =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH v6 33/34] qemu-options: document new monitor-hmp and monitor-qmp objects Date: Thu, 2 Jul 2026 17:03:36 +0100 Message-ID: <20260702160337.1910921-34-berrange@redhat.com> In-Reply-To: <20260702160337.1910921-1-berrange@redhat.com> References: <20260702160337.1910921-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 8 X-Spam_score: 0.8 X-Spam_bar: / X-Spam_report: (0.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.445, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add new docs for the `-object monitor-hmp` and `-object monitor-qmp` options, updating `-mon` to state that it is legacy syntax sugar for the new `-object` args. Signed-off-by: Daniel P. Berrangé --- qemu-options.hx | 61 ++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 58 insertions(+), 3 deletions(-) diff --git a/qemu-options.hx b/qemu-options.hx index e44b47de68..1aa548c39b 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4955,6 +4955,11 @@ SRST port). The default device is ``vc`` in graphical mode and ``stdio`` in non graphical mode. Use ``-monitor none`` to disable the default monitor. + + The use of ``-monitor dev`` is syntax sugar for creating a character + device from ``dev`` and pairing it with ``-object monitor-hmp``. + Both the character device and monitor object will be given an ID + ``compat_monitorNNN`` where ``NNN`` is a counter starting from 0. ERST DEF("qmp", HAS_ARG, QEMU_OPTION_qmp, \ "-qmp dev like -monitor but opens in 'control' mode\n", @@ -4966,9 +4971,10 @@ SRST -qmp tcp:localhost:4444,server=on,wait=off - Not all options are configurable via this syntax; for maximum - flexibility use the ``-mon`` option and an accompanying ``-chardev``. - + The use of ``-monitor dev`` is syntax sugar for creating a character + device from ``dev`` and pairing it with ``-object monitor-qmp``. + Both the character device and monitor object will be given an ID + ``compat_monitorNNN`` where ``NNN`` is a counter starting from 0. ERST DEF("qmp-pretty", HAS_ARG, QEMU_OPTION_qmp_pretty, \ "-qmp-pretty dev like -qmp but uses pretty JSON formatting\n", @@ -4997,6 +5003,16 @@ SRST -mon chardev=mon1,mode=control,pretty=on enables the QMP monitor on localhost port 4444 with pretty-printing. + + The use of ``-mon mode=readline`` is historical syntax sugar + for the new ``-object monitor-hmp`` option, each use of which + creates an object with the ID ``compat_monitorNNN`` where ``NNN`` is + a counter starting from 0. + + The use of ``-mon mode=control`` is historical syntax sugar + for the new ``-object monitor-qmp`` option, each use of which + creates an object with the ID ``compat_monitorNNN`` where ``NNN`` is + a counter starting from 0. ERST DEF("debugcon", HAS_ARG, QEMU_OPTION_debugcon, \ @@ -5747,6 +5763,45 @@ SRST they are specified. Note that the 'id' property must be set. These objects are placed in the '/objects' path. + ``-object monitor-hmp,id=id,chardev=chardev_id,readline=on|off`` + Set up a monitor running the Human Monitor Protocol, + connected to the chardev ``chardev_id``. + + The ``id`` parameter is a unique ID that can be used + to dynamically delete the monitor at runtime. Note + that monitors created using the historical syntax + will be allocated IDs following the pattern ``hmpcompatNN``. + Mixing ``-object`` with the historical monitor syntax is + discouraged. + + The ``readline`` parameter, which defaults to ``on``, + controls whether the monitor provides line editing. + + ``-object monitor-qmp,id=id,chardev=chardev_id,pretty=on|off,close-action=none|delete`` + Set up a monitor running the QEMU Monitor Protocol, + connected to the chardev ``chardev_id``. + + The ``id`` parameter is a unique ID that can be used + to dynamically delete the monitor at runtime. Note + that monitors created using the historical syntax + will be allocated IDs following the pattern ``qmpcompatNN``. + Mixing ``-object`` with the historical monitor syntax is + discouraged. + + The ``pretty`` parameter, which defaults to ``off``, + controls whether the monitor responses are pretty + printed as multi-line indented JSON, as opposed to + constrained to a single line without extraneous + whitespace. + + The ``close-action`` parameter, which defaults to ``none``, + controls what happens when the connection to the monitor + is terminated by the user. If set to ``delete``, then the + ``monitor-qmp`` object and its associated character + device are both immediately deleted. This can be useful + if an extra monitor was hotplugged for a specific task + and should be unplugged when completed. + ``-object memory-backend-file,id=id,size=size,mem-path=dir,share=on|off,discard-data=on|off,merge=on|off,dump=on|off,prealloc=on|off,host-nodes=host-nodes,policy=default|preferred|bind|interleave,align=align,offset=offset,readonly=on|off,rom=on|off|auto`` Creates a memory file backend object, which can be used to back the guest RAM with huge pages. -- 2.54.0