From: Marc-André Lureau <marcandre.lur...@redhat.com> If a display is backed by a specialized VC, allow to override the default "vc:80Cx24C". For that, set the dpy.type just before creating the default serial/parallel/monitor.
As suggested by Paolo, if the display doesn't implement a VC (get_vc() returns NULL), use a fallback that will use a muxed console on stdio. This changes the behaviour of "qemu -display none", to create a muxed serial/monitor by default. Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com> --- include/ui/console.h | 2 ++ system/vl.c | 62 +++++++++++++++++++++++++------------------- ui/console.c | 14 ++++++++++ 3 files changed, 51 insertions(+), 27 deletions(-) diff --git a/include/ui/console.h b/include/ui/console.h index acb61a7f15..a4a49ffc64 100644 --- a/include/ui/console.h +++ b/include/ui/console.h @@ -462,12 +462,14 @@ struct QemuDisplay { DisplayType type; void (*early_init)(DisplayOptions *opts); void (*init)(DisplayState *ds, DisplayOptions *opts); + const char *vc; }; void qemu_display_register(QemuDisplay *ui); bool qemu_display_find_default(DisplayOptions *opts); void qemu_display_early_init(DisplayOptions *opts); void qemu_display_init(DisplayState *ds, DisplayOptions *opts); +const char *qemu_display_get_vc(DisplayOptions *opts); void qemu_display_help(void); /* vnc.c */ diff --git a/system/vl.c b/system/vl.c index 73e4ed2bef..66b34f2ab9 100644 --- a/system/vl.c +++ b/system/vl.c @@ -1364,24 +1364,49 @@ static void qemu_create_default_devices(void) } } - if (nographic) { - if (default_parallel) +#if defined(CONFIG_VNC) + if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) { + display_remote++; + } +#endif + if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { + if (!qemu_display_find_default(&dpy)) { + dpy.type = DISPLAY_TYPE_NONE; +#if defined(CONFIG_VNC) + vnc_parse("localhost:0,to=99,id=default"); +#endif + } + } + if (dpy.type == DISPLAY_TYPE_DEFAULT) { + dpy.type = DISPLAY_TYPE_NONE; + } + + const char *vc = qemu_display_get_vc(&dpy); + + if (nographic || (!vc && !is_daemonized() && isatty(STDOUT_FILENO))) { + if (default_parallel) { add_device_config(DEV_PARALLEL, "null"); + } if (default_serial && default_monitor) { add_device_config(DEV_SERIAL, "mon:stdio"); } else { - if (default_serial) + if (default_serial) { add_device_config(DEV_SERIAL, "stdio"); - if (default_monitor) + } + if (default_monitor) { monitor_parse("stdio", "readline", false); + } } } else { - if (default_serial) - add_device_config(DEV_SERIAL, "vc:80Cx24C"); - if (default_parallel) - add_device_config(DEV_PARALLEL, "vc:80Cx24C"); - if (default_monitor) - monitor_parse("vc:80Cx24C", "readline", false); + if (default_serial) { + add_device_config(DEV_SERIAL, vc ?: "null"); + } + if (default_parallel) { + add_device_config(DEV_PARALLEL, vc ?: "null"); + } + if (default_monitor && vc) { + monitor_parse(vc, "readline", false); + } } if (default_net) { @@ -1392,23 +1417,6 @@ static void qemu_create_default_devices(void) #endif } -#if defined(CONFIG_VNC) - if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) { - display_remote++; - } -#endif - if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { - if (!qemu_display_find_default(&dpy)) { - dpy.type = DISPLAY_TYPE_NONE; -#if defined(CONFIG_VNC) - vnc_parse("localhost:0,to=99,id=default"); -#endif - } - } - if (dpy.type == DISPLAY_TYPE_DEFAULT) { - dpy.type = DISPLAY_TYPE_NONE; - } - /* If no default VGA is requested, the default is "none". */ if (default_vga) { vga_model = get_default_vga_model(machine_class); diff --git a/ui/console.c b/ui/console.c index 8ee66d10c5..a758ed62ad 100644 --- a/ui/console.c +++ b/ui/console.c @@ -1675,6 +1675,20 @@ void qemu_display_init(DisplayState *ds, DisplayOptions *opts) dpys[opts->type]->init(ds, opts); } +const char *qemu_display_get_vc(DisplayOptions *opts) +{ + assert(opts->type < DISPLAY_TYPE__MAX); + if (opts->type == DISPLAY_TYPE_NONE) { + return NULL; + } + assert(dpys[opts->type] != NULL); + if (dpys[opts->type]->vc) { + return dpys[opts->type]->vc; + } else { + return "vc:80Cx24C"; + } +} + void qemu_display_help(void) { int idx; -- 2.41.0