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qemu-options: document -chardev dbus

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Document the dbus backend introduced in commit 3e301c8d7e ("ui/dbus:
add chardev backend & interface")

Signed-off-by: uchouT <i@uchout.moe>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20260509094801.111103-1-i@uchout.moe>
This commit is contained in:
uchouT
2026-05-09 17:48:01 +08:00
committed by Marc-André Lureau
parent 3a453266e3
commit e4c7ebde64
1 changed files with 14 additions and 2 deletions
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16
qemu-options.hx
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@@ -4077,6 +4077,9 @@ DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
#if defined(CONFIG_SPICE)
"-chardev spicevmc,id=id,name=name[,debug=debug][,logfile=PATH][,logappend=on|off]\n"
"-chardev spiceport,id=id,name=name[,debug=debug][,logfile=PATH][,logappend=on|off]\n"
#endif
#if defined(CONFIG_DBUS_DISPLAY)
"-chardev dbus,id=id,name=name[,mux=on|off][,logfile=PATH][,logappend=on|off]\n"
#endif
, QEMU_ARCH_ALL
)
@@ -4088,8 +4091,8 @@ The general form of a character device option is:
Backend is one of: ``null``, ``socket``, ``udp``, ``msmouse``, ``hub``,
``vc``, ``ringbuf``, ``file``, ``pipe``, ``console``, ``serial``,
``pty``, ``stdio``, ``braille``, ``parallel``,
``spicevmc``, ``spiceport``. The specific backend will determine the
applicable options.
``spicevmc``, ``spiceport``, ``dbus``. The specific backend will
determine the applicable options.
Use ``-chardev help`` to print all available chardev backend types.
@@ -4408,6 +4411,15 @@ The available backends are:
Connect to a spice port, allowing a Spice client to handle the
traffic identified by a name (preferably a fqdn).
``-chardev dbus,id=id,name=name``
``dbus`` is only available when D-Bus display support is built in.
``name`` name of the chardev as exported on the D-Bus display
interface
Export the character device on the D-Bus display interface, so that
a D-Bus client can connect to it.
ERST
DEFHEADING()