On Sat, Jul 04, 2020 at 01:07:15AM -0700, Liu Yi L wrote: > In chapter 10.4.23 of VT-d spec 3.0, Descriptor Width bit was introduced > in VTD_IQA_REG. Sfotware could set this bit to tell VT-d the QI descriptor > from software would be 256 bits. Accordingly, the VTD_IQH_QH_SHIFT should > be 5 when descriptor size is 256 bits. > > This patch adds the DW bit check when deciding the shift used to update > VTD_IQH_REG. > > Signed-off-by: Liu Yi L <yi.l....@intel.com>
Reviewed-by: Peter Xu <pet...@redhat.com> -- Peter Xu
