Re: [Qemu-devel] Re: [FOR 0.12 PATCH v3 10/21] default devices: add global cmd line option.

[Paolo Bonzini <pbonzini@redhat.com>]

> > Here is my thinking: if you used -writeconfig, your machine description
> > is (at least in theory) entirely included in the config file including
> > (again in theory) the default devices.
> 
> The default devices are *not* included by in the file created by 
> -writeconfig.

Yes, that's why I wrote "at least in theory".  It doesn't now but that
would be a bug, because it makes -nodefaults another legacy option that
has to be remembered and passed again upon -readconfig.

> Devices created via -readconfig are treated like devices created via 
> [device] sections in the config file.  So it doesn't matter whenever you 
> configure your isa-serial device via command line or config file, in any 
> case it will make qemu not create the default serial port.

I was thinking about the case when you don't want at all a particular
default device.

Paolo