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vl: revert behaviour for -display none
Commit1bec1cc0d
("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: commit1bec1cc0d
("ui/console: allow to override the default VC") Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Tested-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
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@ -1391,7 +1391,7 @@ static void qemu_create_default_devices(void)
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}
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}
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if (nographic || (!vc && !is_daemonized() && isatty(STDOUT_FILENO))) {
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if (nographic) {
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if (default_parallel) {
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add_device_config(DEV_PARALLEL, "null");
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}
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