Hi all, this series signigicantly simplies the mdev driver interface by following the patterns for device model interaction used elsewhere in the kernel. Changes since v2: - rebased to vfio/next - fix a pre-existing memory leak in i915 instead of making it worse - never manipulate if ->available_instances if drv->get_available is provided - keep a parent reference for the mdev_type - keep a few of the sysfs.c helper function around - improve the documentation for the parent device lifetime - minor spellig / formatting fixes Changes since v1: - embedd the mdev_parent into a different sub-structure in i916 - remove headers now inclued by mdev.h from individual source files - pass an array of mdev_types to mdev_register_parent - add additional patches to implement all attributes on the mdev_type in the core code Diffstat: Documentation/driver-api/vfio-mediated-device.rst | 26 +-- Documentation/s390/vfio-ap.rst | 2 Documentation/s390/vfio-ccw.rst | 2 drivers/gpu/drm/i915/gvt/gvt.h | 6 drivers/gpu/drm/i915/gvt/kvmgt.c | 158 ++++-------------- drivers/gpu/drm/i915/gvt/vgpu.c | 66 ++----- drivers/s390/cio/cio.h | 4 drivers/s390/cio/vfio_ccw_drv.c | 3 drivers/s390/cio/vfio_ccw_ops.c | 60 +------ drivers/s390/cio/vfio_ccw_private.h | 2 drivers/s390/crypto/vfio_ap_ops.c | 68 +------- drivers/s390/crypto/vfio_ap_private.h | 6 drivers/vfio/mdev/mdev_core.c | 185 ++++----------------- drivers/vfio/mdev/mdev_driver.c | 7 drivers/vfio/mdev/mdev_private.h | 32 --- drivers/vfio/mdev/mdev_sysfs.c | 187 +++++++++++----------- include/linux/mdev.h | 77 ++++----- samples/vfio-mdev/mbochs.c | 103 +++--------- samples/vfio-mdev/mdpy.c | 115 +++---------- samples/vfio-mdev/mtty.c | 94 +++-------- 20 files changed, 380 insertions(+), 823 deletions(-)