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AlanoSong@163.com 4c1646e23f ui/vnc: Fix qemu abort when query vnc info 
When there is no display device on qemu machine,
and user only access qemu by remote vnc.
At the same time user input `info vnc` by QMP,
the qemu will abort.

To avoid the abort above, I add display device check,
when query vnc info in qmp_query_vnc_servers().

Reviewed-by: Marc-AndréLureau <marcandre.lureau@redhat.com>
Signed-off-by: Alano Song <AlanoSong@163.com>
[ Marc-André - removed useless Error *err ]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20251125131955.7024-1-AlanoSong@163.com>
2025-11-25 18:03:13 +04:00
..
icons ui/icons/qemu.svg: Add metadata information (author, license) to the logo 2025-09-30 11:21:55 +04:00
shader meson: do not build shaders by default 2023-10-17 15:20:53 +02:00
clipboard.c ui/clipboard: delay clipboard update when not running 2025-05-24 16:33:18 +02:00
cocoa.m ui & main loop: Redesign of system-specific main thread event handling 2024-12-31 21:21:34 +01:00
console-gl.c ui/spice: Create a new texture with linear layout when gl=on is specified 2025-07-15 10:22:33 +04:00
console-priv.h ui/curses: Do not use console_select() 2024-03-20 10:27:58 +04:00
console-vc-stubs.c ui/curses: Do not use console_select() 2024-03-20 10:27:58 +04:00
console-vc.c qom: Have class_init() take a const data argument 2025-04-25 17:00:41 +02:00
console.c qom: Have class_init() take a const data argument 2025-04-25 17:00:41 +02:00
curses.c ui/curses: Fix infinite loop on windows 2025-08-07 14:08:06 +04:00
curses_keys.h For curses display, recognize a few more control keys 2023-07-25 10:56:51 +01:00
cursor.c ui/cursor: remove cursor_get_mono_image 2024-10-03 17:26:06 +03:00
cursor_hidden.xpm
cursor_left_ptr.xpm
dbus-chardev.c qom: Have class_init() take a const data argument 2025-04-25 17:00:41 +02:00
dbus-clipboard.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
dbus-console.c ui/dbus: on win32, allow ANONYMOUS with p2p 2025-02-03 21:15:57 +04:00
dbus-display1.xml ui/dbus: change dbus ScanoutDMABUF interface 2025-05-06 13:39:47 +04:00
dbus-error.c ui: add a D-Bus display backend 2021-12-21 10:50:22 +04:00
dbus-listener.c ui/dbus: Consistent handling of texture mutex failure 2025-10-01 08:33:24 +02:00
dbus-module.c ui/dbus: add p2p=on/off option 2021-12-21 10:50:22 +04:00
dbus.c audio: move audio.h under include/qemu/ 2025-10-30 22:56:51 +04:00
dbus.h ui/dbus: win32 support 2023-06-27 17:08:56 +02:00
dmabuf.c ui/dmabuf: extend QemuDmaBuf to support multi-plane 2025-05-06 11:57:03 +04:00
egl-context.c qapi/ui: Drop temporary 'prefix' 2024-09-10 13:22:47 +02:00
egl-headless.c qapi/ui: Drop temporary 'prefix' 2024-09-10 13:22:47 +02:00
egl-helpers.c ui/egl-helpers: Error check the fds in egl_dmabuf_export_texture() 2025-07-14 14:51:45 +04:00
gtk-clipboard.c ui/gtk: warn if setting the clipboard failed 2025-05-24 16:33:17 +02:00
gtk-egl.c gtk: Skip drawing if console surface is NULL 2025-09-30 11:06:36 +04:00
gtk-gl-area.c ui/gtk-gl-area: Remove extra draw call in refresh 2025-10-20 13:46:28 +01:00
gtk.c ui/gtk: Fix callback function signature 2025-10-05 09:46:06 +03:00
input-barrier.c vfio scsi ui: Error-check qio_channel_socket_connect_sync() the same way 2025-09-01 13:11:13 +02:00
input-barrier.h
input-keymap.c
input-legacy.c ui/input-legacy.c: remove unused legacy qemu_add_kbd_event_handler() function 2024-11-08 11:06:42 +01:00
input-linux.c treewide: use qemu_set_blocking instead of g_unix_set_fd_nonblocking 2025-09-19 12:46:07 +01:00
input.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
kbd-state.c ui/vnc: Do not use console_select() 2024-03-20 10:27:54 +04:00
keymaps.c ui/keymaps: Avoid trace crash and improve error messages 2025-09-01 12:51:37 +02:00
keymaps.h ui: spelling fixes 2023-08-31 19:47:43 +02:00
meson.build meson: remove unnecessary dependencies from specific_ss 2025-05-12 16:08:24 +02:00
qemu-pixman.c ui/pixman: Fix crash in qemu_pixman_shareable_free() 2025-10-21 09:54:48 +02:00
qemu-x509.h
qemu.desktop
sdl2-2d.c ui+display: rename is_placeholder() -> surface_is_placeholder() 2024-06-19 12:42:03 +02:00
sdl2-gl.c ui/gtk-egl: Render guest content with padding in fixed-scale mode 2025-05-24 17:04:09 +02:00
sdl2-input.c ui/sdl2: release all modifiers 2024-09-13 20:12:16 +02:00
sdl2.c ui/sdl2: fix reset scaling binding to be consistent with gtk 2025-09-30 11:09:05 +04:00
shader.c ui/shader: free associated programs 2022-03-14 15:16:16 +04:00
spice-app.c qom: Have class_init() take a const data argument 2025-04-25 17:00:41 +02:00
spice-core.c Error reporting patches for 2025-09-30 2025-10-01 15:02:18 -07:00
spice-display.c ui/spice: fix crash when disabling GL scanout on 2025-09-30 11:08:33 +04:00
spice-input.c input: Allow to choose console with qemu_input_is_absolute 2023-10-03 15:04:56 +04:00
spice-module.c
trace-events ui: add trace events for all client messages 2025-07-16 11:27:30 +01:00
trace.h
udmabuf.c Do not include "qemu/error-report.h" in headers that do not need it 2023-02-14 09:11:27 +01:00
ui-hmp-cmds.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
ui-qmp-cmds.c ui/qmp-cmds: Improve two error messages 2023-11-17 10:07:52 +01:00
util.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
vdagent.c ui/vdagent: fix windows agent regression 2025-11-25 11:08:24 +04:00
vgafont.h ui: fix tab indentation 2022-11-08 10:23:06 +01:00
vnc-auth-sasl.c ui: validate NUL byte padding in SASL client data more strictly 2024-10-22 13:02:31 +01:00
vnc-auth-sasl.h vnc: avoid deprecation warnings for SASL on OS X 2021-06-15 17:17:09 +02:00
vnc-auth-vencrypt.c
vnc-auth-vencrypt.h
vnc-clipboard.c ui/vnc-clipboard: fix inflate_buffer 2023-12-04 11:28:26 +04:00
vnc-enc-hextile-template.h ui/vnc-enc-hextile: Use static rather than dynamic length stack array 2023-09-04 14:57:44 +04:00
vnc-enc-hextile.c Drop useless casts from g_malloc() & friends to pointer 2022-10-22 23:15:40 +02:00
vnc-enc-tight.c ui/vnc: Introduce the VncWorker type 2025-07-14 14:51:12 +04:00
vnc-enc-tight.h
vnc-enc-zlib.c ui/vnc: Introduce the VncWorker type 2025-07-14 14:51:12 +04:00
vnc-enc-zrle.c ui/vnc: Introduce the VncWorker type 2025-07-14 14:51:12 +04:00
vnc-enc-zrle.c.inc ui/vnc: Introduce the VncWorker type 2025-07-14 14:51:12 +04:00
vnc-enc-zrle.h
vnc-enc-zywrle-template.c ui: fix tab indentation 2022-11-08 10:23:06 +01:00
vnc-enc-zywrle.h ui: spelling fixes 2023-08-31 19:47:43 +02:00
vnc-jobs.c ui/vnc: Introduce the VncWorker type 2025-07-14 14:51:12 +04:00
vnc-jobs.h
vnc-palette.c ui: Clean up local variable shadowing 2023-09-29 08:13:57 +02:00
vnc-palette.h
vnc-stubs.c qemu-options: define -vnc only #ifdef CONFIG_VNC 2023-11-07 14:04:25 +04:00
vnc-ws.c bulk: Remove pointless QOM casts 2023-06-05 20:48:34 +02:00
vnc-ws.h
vnc.c ui/vnc: Fix qemu abort when query vnc info 2025-11-25 18:03:13 +04:00
vnc.h audio: move capture API to own header 2025-10-30 22:56:51 +04:00
vnc_keysym.h ui: fix tab indentation 2022-11-08 10:23:06 +01:00
win32-kbd-hook.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
x_keymap.c ui: Fix memory leak in qemu_xkeymap_mapping_table() 2021-05-02 17:24:50 +02:00
x_keymap.h