From 69562648f9c35382041d96dc267768cbcc008a41 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marc-Andr=C3=A9=20Lureau?= Date: Fri, 17 Nov 2023 18:03:16 +0400 Subject: [PATCH] vl: revert behaviour for -display none MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Commit 1bec1cc0d ("ui/console: allow to override the default VC") changed the behaviour of the "-display none" option, so that it now creates a QEMU monitor on the terminal. "-display none" should not be tangled up with whether we create a monitor or a serial terminal; it should purely and only disable the graphical window. Changing its behaviour like this breaks command lines which, for example, use semihosting for their output and don't want a graphical window, as they now get a monitor they never asked for. It also breaks the command line we document for Xen in docs/system/i386/xen.html: $ ./qemu-system-x86_64 --accel kvm,xen-version=0x40011,kernel-irqchip=split \ -display none -chardev stdio,mux=on,id=char0,signal=off -mon char0 \ -device xen-console,chardev=char0 -drive file=${GUEST_IMAGE},if=xen qemu-system-x86_64: cannot use stdio by multiple character devices qemu-system-x86_64: could not connect serial device to character backend 'stdio' When qemu is compiled without PIXMAN, by default the serials aren't muxed with the monitor anymore on stdio. The serials are redirected to "null" instead, and the monitor isn't set up. Fixes: commit 1bec1cc0d ("ui/console: allow to override the default VC") Signed-off-by: Marc-André Lureau Tested-by: Peter Maydell Reviewed-by: Peter Maydell Tested-by: David Woodhouse Reviewed-by: David Woodhouse --- system/vl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/system/vl.c b/system/vl.c index 5af7ced2a1..14bf0cf0bf 100644 --- a/system/vl.c +++ b/system/vl.c @@ -1391,7 +1391,7 @@ static void qemu_create_default_devices(void) } } - if (nographic || (!vc && !is_daemonized() && isatty(STDOUT_FILENO))) { + if (nographic) { if (default_parallel) { add_device_config(DEV_PARALLEL, "null"); } -- 2.30.2