On Fri, Nov 13, 2015 at 11:49:33AM +0000, Peter Maydell wrote: > On 12 November 2015 at 09:48, Paolo Bonzini <pbonz...@redhat.com> wrote: > > > > > > On 11/11/2015 20:09, Eduardo Habkost wrote: > >> All DisplayType values are just UI options that don't affect any > >> hardware emulation code, except for DT_NOGRAPHIC. Replace > >> DT_NOGRAPHIC with DT_NONE plus a new MachineState.nographic > >> field, so hardware emulation code don't need to use the > >> display_type variable. > >> > >> Cc: Michael Walle <mich...@walle.cc> > >> Cc: Blue Swirl <blauwir...@gmail.com> > >> Cc: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> > >> Signed-off-by: Eduardo Habkost <ehabk...@redhat.com> > > > > Can you add a QOM property too, so that "-machine graphics=yes|no" can > > be used? > > We already have both '-nographic' and '-display none'.
-display none is not a way to turn off graphics hardware emulation, it is just a way to control QEMU's GUI. > I think adding yet another way to turn off graphics which isn't > the same as either of our existing command line options would > worsen this confusion... I blame the confusion on the fact that "-nographic" does too much (it affects hardware emulation, QEMU's GUI, and device output redirection at the same time). -- Eduardo
