From: "Daniel P. Berrangé" <berrange@redhat.com>
To: qemu-devel@nongnu.org
Cc: devel@lists.libvirt.org, "Alex Bennée" <alex.bennee@linaro.org>,
"Christian Brauner" <brauner@kernel.org>,
"Markus Armbruster" <armbru@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Dr. David Alan Gilbert" <dave@treblig.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@mailo.com>,
"Daniel P. Berrangé" <berrange@redhat.com>
Subject: [PATCH v3 34/35] qemu-options: document new monitor-hmp and monitor-qmp objects
Date: Thu, 18 Jun 2026 11:58:35 +0100 [thread overview]
Message-ID: <20260618105836.991609-35-berrange@redhat.com> (raw)
In-Reply-To: <20260618105836.991609-1-berrange@redhat.com>
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 <berrange@redhat.com>
---
qemu-options.hx | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/qemu-options.hx b/qemu-options.hx
index c799286153..98c74cc9ff 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4980,6 +4980,16 @@ 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 ``hmpcompatNNN`` 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 ``qmpcompatNNN`` where ``NNN`` is
+ a counter starting from 0.
ERST
DEF("debugcon", HAS_ARG, QEMU_OPTION_debugcon, \
@@ -5730,6 +5740,46 @@ 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 interactive
+ prompts
+
+ ``-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
next prev parent reply other threads:[~2026-06-18 11:02 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-18 10:58 [PATCH v3 00/35] monitor: turn QMP and HMP into QOM objects Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 01/35] qom: replace 'can_be_deleted' with 'prepare_delete' Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 02/35] monitor: replace 'common' with 'parent_obj' in MonitorHMP Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 03/35] monitor: replace 'common' with 'parent_obj' in MonitorQMP Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 04/35] monitor: rename monitor_init* to monitor_new* Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 05/35] monitor: minimal conversion of monitors to QOM Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 06/35] monitor: add 'chardev' property to Monitor base class Daniel P. Berrangé
2026-06-18 11:54 ` marcandre.lureau
2026-06-18 10:58 ` [PATCH v3 07/35] monitor: add 'readline' property to HMP Monitor class Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 08/35] monitor: add 'pretty' property to QMP " Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 09/35] monitor: remove 'skip_flush' field Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 10/35] monitor: move monitor_data_(init|destroy) into QOM init/finalize Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 11/35] monitor: use class methods for monitor_vprintf Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 12/35] monitor: use class methods for monitor_qapi_event_emit Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 13/35] monitor: use class methods for monitor_accept_input Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 14/35] monitor: use class method for I/O thread request Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 15/35] monitor: use dynamic cast in monitor_qmp_requests_pop_any_with_lock Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 16/35] util: use dynamic cast in error vreport Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 17/35] monitor: drop unused monitor_cur_is_qmp Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 18/35] monitor: use dynamic cast in QMP commands Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 19/35] monitor: use dynamic cast in monitor_is_hmp_non_interactive Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 20/35] monitor: drop unused monitor_is_qmp method Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 21/35] monitor: eliminate monitor_is_hmp_non_interactive method Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 22/35] monitor: implement "user creatable" interface for adding monitors Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 23/35] monitor: convert from oneshot BH to persistent BH Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 24/35] monitor: reject attempts to delete the current monitor Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 25/35] monitor: protect qemu_chr_fe_accept_input with monitor lock Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 26/35] monitor: implement support for deleting QMP objects Daniel P. Berrangé
2026-06-18 11:54 ` marcandre.lureau
2026-06-18 10:58 ` [PATCH v3 27/35] tests/qtest: add tests for dynamic monitor add/remove Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 28/35] tests/functional: add e2e test for dynamic QMP monitor hotplug Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 29/35] tests/functional: add a stress test for monitor hot unplug Daniel P. Berrangé
2026-06-18 11:54 ` marcandre.lureau
2026-06-18 10:58 ` [PATCH v3 30/35] qom: add method for getting the "id" of a QOM object Daniel P. Berrangé
2026-06-18 11:54 ` marcandre.lureau
2026-06-18 10:58 ` [PATCH v3 31/35] qom: add trace events for user creatable create/delete APIs Daniel P. Berrangé
2026-06-18 10:58 ` [PATCH v3 32/35] monitor: add support for auto-deleting monitors upon close Daniel P. Berrangé
2026-06-18 11:54 ` marcandre.lureau
2026-06-18 10:58 ` [PATCH v3 33/35] tests: switch from -mon to -object monitor-qmp Daniel P. Berrangé
2026-06-18 10:58 ` Daniel P. Berrangé [this message]
2026-06-18 11:54 ` [PATCH v3 34/35] qemu-options: document new monitor-hmp and monitor-qmp objects marcandre.lureau
2026-06-18 10:58 ` [PATCH v3 35/35] docs: mark '-mon' as deprecated in favour of -object Daniel P. Berrangé
2026-06-18 11:54 ` marcandre.lureau
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