On Wed, Mar 08, 2023 at 06:25:58AM -0800, Nicolin Chen wrote: > A driver that doesn't implement ops->dma_unmap shouldn't be allowed to do > vfio_pin/unpin_pages(), though it can use vfio_dma_rw() to access an iova > range. Deny !ops->dma_unmap cases in vfio_pin/unpin_pages(). > > Suggested-by: Kevin Tian <kevin.tian@xxxxxxxxx> > Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx> > Reviewed-by: Yi Liu <yi.l.liu@xxxxxxxxx> > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> > --- > drivers/vfio/vfio_main.c | 4 ++++ > 1 file changed, 4 insertions(+) Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason
