Re: [PATCH v3] Warn user if the vga flag is passed but no vga device is created

[Gerd Hoffmann]

  Hi,

> Oh, I see now -- qemu_disable_default_devices() does a
> preliminary scan through of every supplied -device option,
> looking to see if it has a driver=foo that matches some
> value in the default_list[] array; if it does then we
> set default_vga or whatever to false. (So effectively we
> have a hardcoded list of things we consider to be "VGA
> devices" for this purpose, which might or might not be the same
> as the set of actual VGA devices we support...)
> 
> I guess this is all here for backwards compatibility purposes?

Well, sort of.  This tries to deal with the messy side effects of
the default devices, i.e. avoid users end up with *two* vga devices
in case they use "qemu -device VGA" (same for serial, ...).

take care,
  Gerd