[PATCH v10] vfio: ABI for mdev display dma-buf operation

Gerd Hoffmann kraxel at redhat.com
Fri Jul 14 12:05:39 UTC 2017


  Hi,

> There could be only two planes, one DRM_PLANE_TYPE_PRIMARY and one
> DRM_PLANE_TYPE_CURSOR.
> Steps from gfx_update for region case would be:
> - VFIO_DEVICE_QUERY_GFX_PLANE with plane_type =
> DRM_PLANE_TYPE_PRIMARY

> - if vfio_device_gfx_plane_info.size > 0, read region for primary
> surface and update console surface

Why?  I suspect you want notify the caller whenever the surface has
been updated or not?  If so we should add an explicit flag or field for
that.

cheers,
  Gerd



More information about the intel-gvt-dev mailing list