Re: [Qemu-devel] [Qemu-ppc] [PATCH v2 2/2] Fix return value of vga initlization on ppc

[Paolo Bonzini]

Il 10/03/2014 13:23, Alexey Kardashevskiy ha scritto:
> On 03/10/2014 05:07 AM, Paolo Bonzini wrote:
> > Il 08/03/2014 14:26, Alexey Kardashevskiy ha scritto:
> > > > > I think that after this patch, "-nodefaults -device VGA" will get a USB
> > > > > controller that it didn't get before.
> > >
> > > I suspect what was meant by "the machine not aware of the graphics device"
> > >  is that the guest won't work with VGA and without keyboard (default
> > > console will be vga + keyboard and not serial) which is USB and this is why
> > > the patch is trying to add USB.
> >
> > But with -nodefaults QEMU should never be adding USB.
>
> As I was told in this list before, even with -nodefaults, QEMU should not
> create a machine which is known for not working or not being supported.
> Having VGA and not having any input device is kind of such a config, no?

-nodefaults is exactly the opposite of that: no magic whatsoever.  No 
VGA, no serial, nothing.

And especially, with -nodefaults adding a VGA means just that: adding a VGA.

Paolo