Re: [PATCH v9 5/7] vfio: Define vfio based dma-buf operations
From: Gerd Hoffmann
Date: Fri Jul 14 2017 - 05:58:50 EST
> > > Right we need to know this at device initialization time for both
> > > cases
> > > to initialize VGACommonState structure for that device
> > Why do you need a VGACommonState?
> We need to create a GRAPHIC_CONSOLE for vGPU device and specify
> GraphicHwOps so that from its .gfx_update callback, surface can be
> queried and updated.
Yes, you need GraphicHwOps, but there is no need to have a
VGACommonState for that.
> > > and also need
> > > NONE to decide whether to init console vnc or not. We have a
> > > mechanism
> > > to disable console vnc path and we recommend to disable it for
> > > better
> > > performance.
> > Hmm, maybe we should have a ioctl to configure the refresh rate, or
> > a
> > ioctl to allow qemu ask for a refresh when needed?
> What is default refresh rate of QEMU if vnc is connected?
/* in ms */