Hi all, this series significantly simplifies the mdev driver interface by following the patterns for device model interaction used elsewhere in the kernel. Changes since v7: - rebased to the latests vfio/next branch - move the mdev.h include from cio.h to vfio_ccw_private.h - don't free the parent in mdev_type_release - set the pretty_name for vfio_ap - fix the available_instances check in mdev_device_create Changes since v6: - rebased to Linux 6.0-rc2 - folded in a patch from Eric Farman to fix the placement of the new embedded mdev structured in the s390 cio driver Changes since v5: - rebased to the latest vfio/next branch - drop the last patch again - make sure show_available_instances works properly for the internallly tracked case Changes since v4: - move the kobject_put later in mdev_device_release - add a Fixes tag for the first patch - add another patch to remove an extra kobject_get/put Changes since v3: - make the sysfs_name and pretty_name fields pointers instead of arrays - add an i915 cleanup to prepare for the above 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/aperture_gm.c | 20 +- drivers/gpu/drm/i915/gvt/gvt.h | 42 ++-- drivers/gpu/drm/i915/gvt/kvmgt.c | 168 ++++------------- drivers/gpu/drm/i915/gvt/vgpu.c | 210 +++++++--------------- drivers/s390/cio/cio.h | 1 drivers/s390/cio/vfio_ccw_drv.c | 12 - drivers/s390/cio/vfio_ccw_ops.c | 51 ----- drivers/s390/cio/vfio_ccw_private.h | 6 drivers/s390/crypto/vfio_ap_ops.c | 68 +------ drivers/s390/crypto/vfio_ap_private.h | 6 drivers/vfio/mdev/mdev_core.c | 190 ++++--------------- drivers/vfio/mdev/mdev_driver.c | 7 drivers/vfio/mdev/mdev_private.h | 32 --- drivers/vfio/mdev/mdev_sysfs.c | 189 ++++++++++--------- include/linux/mdev.h | 77 ++++---- samples/vfio-mdev/mbochs.c | 103 +++------- samples/vfio-mdev/mdpy.c | 115 +++--------- samples/vfio-mdev/mtty.c | 94 +++------ 21 files changed, 464 insertions(+), 957 deletions(-)
