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hw/core/null-machine: Do not initialize unused chardev backends 

The MachineClass uses an inverted logic (inherited from the
PC machines [*]) to create the chardev backends for the default
devices (see commits 998bbd74b9d..aa40fc9c964 and ac33f8fad1).

As the none-machine doesn't have any hardware device, it is
pointless to initialize chardev backends. Fix by setting the
'no_defaults' bits in its MachineClass.

Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200624105611.1049-1-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-06-24 12:56:11 +02:00 committed by Paolo Bonzini
parent 5b88849e7b
commit 9e7871b1fc
1 changed files with 5 additions and 0 deletions
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5
hw/core/null-machine.c
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@ -50,6 +50,11 @@ static void machine_none_machine_init(MachineClass *mc)
mc->max_cpus = 1;
mc->default_ram_size = 0;
mc->default_ram_id = "ram";
mc->no_serial = 1;
mc->no_parallel = 1;
mc->no_floppy = 1;
mc->no_cdrom = 1;
mc->no_sdcard = 1;
}
DEFINE_MACHINE("none", machine_none_machine_init)