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ui/console: allow to override the default VC

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If a display is backed by a specialized VC, allow to override the
default "vc:80Cx24C".

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 (on TTY & not daemonized).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Marc-André Lureau
2023-09-05 23:18:08 +04:00
parent 2aeaa4b200
commit 1bec1cc0da
3 changed files with 33 additions and 10 deletions
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27
system/vl.c
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@@ -1372,6 +1372,7 @@ static void qemu_setup_display(void)
static void qemu_create_default_devices(void)
{
MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
const char *vc = qemu_display_get_vc(&dpy);
if (is_daemonized()) {
/* According to documentation and historically, -nographic redirects
@@ -1390,24 +1391,30 @@ static void qemu_create_default_devices(void)
}
}
if (nographic) {
if (default_parallel)
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) {