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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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14
ui/console.c
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@ -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;