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The D-Bus connection starts processing messages before QEMU has the time
to set the object manager server. This is causing dbus-display-test to
fail randomly with:
ERROR:../tests/qtest/dbus-display-test.c:68:test_dbus_display_vm:
assertion failed
(qemu_dbus_display1_vm_get_name(QEMU_DBUS_DISPLAY1_VM(vm)) ==
"dbus-test"): (NULL == "dbus-test") ERROR
Use the delayed message processing flag and method to avoid that
situation.
(the bus connection doesn't need a fix, as the initialization is done
synchronously)
Reported-by: Robinson, Cole <crobinso@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Cole Robinson <crobinso@redhat.com>
Message-Id: <20220609152647.870373-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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The DBus listener naively create, update and destroy textures without
taking into account other listeners. The texture were shared, but
texture update was unnecessarily duplicated.
Teach DisplayGLCtx to do optionally shared texture handling. This is
only implemented for DBus display at this point, however the same
infrastructure could potentially be used for other future combinations.
Reported-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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DBusDisplayConsole is specific to a given QemuConsole.
Fixes: commit 142ca628 ("ui: add a D-Bus display backend")
Reported-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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As expected from the "compatible_dcl" comment, a simple comparison of
ops isn't enough. The following patch will fix a regression introduced
by this limited check by extending the compatibility callback for
egl-headless.
For now, this patch simply replaces the the "compatible_dcl" ops pointer
with a "dpy_gl_ctx_is_compatible_ctx" callback.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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On the last added dbus patch, I left a tiny BO:
==441487==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x611000025a70 at pc 0x7f0817bb764c bp 0x7ffde672ae60 sp 0x7ffde672ae58
WRITE of size 8 at 0x611000025a70 thread T0
#0 0x7f0817bb764b in dbus_vc_class_init ../ui/dbus.c:401
A cookie for ASAN! not you C :)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Fixes: 7f767ca35e5 ("ui/dbus: register D-Bus VC handler")
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211222144032.443424-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Export the default consoles over the D-Bus chardev.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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Add a new chardev backend which allows D-Bus client to handle the
chardev stream & events.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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Expose the clipboard API over D-Bus. See the interface documentation for
further details.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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Add a new -audio backend that accepts D-Bus clients/listeners to handle
playback & recording, to be exported via the -display dbus.
Example usage:
-audiodev dbus,in.mixing-engine=off,out.mixing-engine=off,id=dbus
-display dbus,audiodev=dbus
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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Add an option to use direct connections instead of via the bus. Clients
are accepted with QMP add_client.
This allows to provide the D-Bus display without a bus. It also
simplifies the testing setup (some CI have issues to setup a D-Bus bus
in a container).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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The "dbus" display backend exports the QEMU consoles and other
UI-related interfaces over D-Bus.
By default, the connection is established on the session bus, but you
can specify a different bus with the "addr" option.
The backend takes the "org.qemu" service name, while still allowing
further instances to queue on the same name (so you can lookup all the
available instances too). It accepts any number of clients at this
point, although this is expected to evolve with options to restrict
clients, or only accept p2p via fd passing.
The interface is intentionally very close to the internal QEMU API,
and can be introspected or interacted with busctl/dfeet etc:
$ ./qemu-system-x86_64 -name MyVM -display dbus
$ busctl --user introspect org.qemu /org/qemu/Display1/Console_0
org.qemu.Display1.Console interface - - -
.RegisterListener method h - -
.SetUIInfo method qqiiuu - -
.DeviceAddress property s "pci/0000/01.0" emits-change
.Head property u 0 emits-change
.Height property u 480 emits-change
.Label property s "VGA" emits-change
.Type property s "Graphic" emits-change
.Width property u 640 emits-change
[...]
See the interfaces XML source file and Sphinx docs for the generated API
documentations.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
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