From ef0a1212c9c9c4b50fb6f7d83fbb6cbb3c8e5355 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Wed, 31 Jul 2024 16:41:36 +0100 Subject: [PATCH] ui/console: Note in '-display help' that some backends support suboptions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently '-display help' only prints the available backends. Some of those backends support suboptions (e.g. '-display gtk,gl=on'). Mention that in the help output, and point the user to where they might be able to find more information about the suboptions. The new output looks like this: $ qemu-system-aarch64 -display help Available display backend types: none gtk sdl egl-headless curses spice-app dbus Some display backends support suboptions, which can be set with -display backend,option=value,option=value... For a short list of the suboptions for each display, see the top-level -help output; more detail is in the documentation. Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Acked-by: Marc-André Lureau Message-ID: <20240731154136.3494621-4-peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé --- ui/console.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/ui/console.c b/ui/console.c index e8f0083af7..105a0e2c70 100644 --- a/ui/console.c +++ b/ui/console.c @@ -1632,4 +1632,9 @@ void qemu_display_help(void) printf("%s\n", DisplayType_str(dpys[idx]->type)); } } + printf("\n" + "Some display backends support suboptions, which can be set with\n" + " -display backend,option=value,option=value...\n" + "For a short list of the suboptions for each display, see the " + "top-level -help output; more detail is in the documentation.\n"); }