[PATCH 1/6] mdev: class id support

[Parav Pandit]

Hi Jason,


> -----Original Message-----
> From: Jason Wang <jasowang at redhat.com>
> Sent: Monday, September 23, 2019 8:03 AM
> To: kvm at vger.kernel.org; linux-s390 at vger.kernel.org; linux-
> kernel at vger.kernel.org; dri-devel at lists.freedesktop.org; intel-
> gfx at lists.freedesktop.org; intel-gvt-dev at lists.freedesktop.org;
> kwankhede at nvidia.com; alex.williamson at redhat.com; mst at redhat.com;
> tiwei.bie at intel.com
> Cc: virtualization at lists.linux-foundation.org; netdev at vger.kernel.org;
> cohuck at redhat.com; maxime.coquelin at redhat.com;
> cunming.liang at intel.com; zhihong.wang at intel.com;
> rob.miller at broadcom.com; xiao.w.wang at intel.com;
> haotian.wang at sifive.com; zhenyuw at linux.intel.com; zhi.a.wang at intel.com;
> jani.nikula at linux.intel.com; joonas.lahtinen at linux.intel.com;
> rodrigo.vivi at intel.com; airlied at linux.ie; daniel at ffwll.ch;
> farman at linux.ibm.com; pasic at linux.ibm.com; sebott at linux.ibm.com;
> oberpar at linux.ibm.com; heiko.carstens at de.ibm.com; gor at linux.ibm.com;
> borntraeger at de.ibm.com; akrowiak at linux.ibm.com; freude at linux.ibm.com;
> lingshan.zhu at intel.com; Ido Shamay <idos at mellanox.com>;
> eperezma at redhat.com; lulu at redhat.com; Parav Pandit
> <parav at mellanox.com>; Jason Wang <jasowang at redhat.com>
> Subject: [PATCH 1/6] mdev: class id support
> 
> Mdev bus only supports vfio driver right now, so it doesn't implement match
> method. But in the future, we may add drivers other than vfio, one example is
> virtio-mdev[1] driver. This means we need to add device class id support in bus
> match method to pair the mdev device and mdev driver correctly.
> 
> So this patch adds id_table to mdev_driver and class_id for mdev parent with
> the match method for mdev bus.
> 
> Signed-off-by: Jason Wang <jasowang at redhat.com>
> ---
>  Documentation/driver-api/vfio-mediated-device.rst |  7 +++++--
>  drivers/gpu/drm/i915/gvt/kvmgt.c                  |  2 +-
>  drivers/s390/cio/vfio_ccw_ops.c                   |  2 +-
>  drivers/s390/crypto/vfio_ap_ops.c                 |  3 ++-
>  drivers/vfio/mdev/mdev_core.c                     | 14 ++++++++++++--
>  drivers/vfio/mdev/mdev_driver.c                   | 14 ++++++++++++++
>  drivers/vfio/mdev/mdev_private.h                  |  1 +
>  drivers/vfio/mdev/vfio_mdev.c                     |  6 ++++++
>  include/linux/mdev.h                              |  7 ++++++-
>  include/linux/mod_devicetable.h                   |  8 ++++++++
>  samples/vfio-mdev/mbochs.c                        |  2 +-
>  samples/vfio-mdev/mdpy.c                          |  2 +-
>  samples/vfio-mdev/mtty.c                          |  2 +-
>  13 files changed, 59 insertions(+), 11 deletions(-)
> 
You additionally need modpost support for id table integration to modifo, modprobe and other tools.
A small patch similar to this one [1] is needed.
Please include in the series.

[1] https://lore.kernel.org/patchwork/patch/1046991/