On Thu, May 19, 2022 at 02:33:11PM -0400, Matthew Rosato wrote: > Rather than relying on a notifier for associating the KVM with > the group, let's assume that the association has already been > made prior to device_open. The first time a device is opened > associate the group KVM with the device. > > This fixes a user-triggerable oops in GVT. > > Reviewed-by: Tony Krowiak <akrowiak@xxxxxxxxxxxxx> > Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> > Signed-off-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/gvt/gtt.c | 4 +- > drivers/gpu/drm/i915/gvt/gvt.h | 3 - > drivers/gpu/drm/i915/gvt/kvmgt.c | 82 ++++++-------------------- > drivers/s390/crypto/vfio_ap_ops.c | 35 ++--------- > drivers/s390/crypto/vfio_ap_private.h | 3 - > drivers/vfio/vfio.c | 83 ++++++++++----------------- > include/linux/vfio.h | 6 +- > 7 files changed, 57 insertions(+), 159 deletions(-) Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason
