Re: [PATCH 07/10] vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind

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On Mon, Jun 14 2021, Christoph Hellwig <hch@xxxxxx> wrote:

> From: Jason Gunthorpe <jgg@xxxxxxxxxx>
>
> This allows a mdev driver to opt out of using vfio_mdev.c, instead the
> driver will provide a 'struct mdev_driver' and register directly with the
> driver core.
>
> Much of mdev_parent_ops becomes unused in this mode:
> - create()/remove() are done via the mdev_driver probe()/remove()
> - mdev_attr_groups becomes mdev_driver driver.dev_groups
> - Wrapper function callbacks are replaced with the same ones from
>   struct vfio_device_ops
>
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  drivers/vfio/mdev/mdev_core.c   | 30 ++++++++++++++++++++++--------
>  drivers/vfio/mdev/mdev_driver.c | 10 ++++++++++
>  include/linux/mdev.h            |  2 ++
>  3 files changed, 34 insertions(+), 8 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>




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