simplify the mdev interface v2

[Yi Liu]

Hi Chris,

On 2022/6/14 12:54, Christoph Hellwig wrote:
> 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 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                   |   60 +----
>   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                     |  214 ++++++--------------
>   drivers/vfio/mdev/mdev_driver.c                   |    7
>   drivers/vfio/mdev/mdev_private.h                  |   39 ---
>   drivers/vfio/mdev/mdev_sysfs.c                    |  230 ++++++++--------------
>   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, 389 insertions(+), 887 deletions(-)

Is this series available on any github repo? I'd like to apply your series 
and apply my vfio_device cdev series on top of it.

-- 
Regards,
Yi Liu