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Message-ID: <AM0PR05MB486657BB8E48F744D219CF9BD1850@AM0PR05MB4866.eurprd05.prod.outlook.com>
Date: Mon, 23 Sep 2019 21:02:38 +0000
From: Parav Pandit <parav@...lanox.com>
To: Jason Wang <jasowang@...hat.com>,
"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
"linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
"intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
"intel-gvt-dev@...ts.freedesktop.org"
<intel-gvt-dev@...ts.freedesktop.org>,
"kwankhede@...dia.com" <kwankhede@...dia.com>,
"alex.williamson@...hat.com" <alex.williamson@...hat.com>,
"mst@...hat.com" <mst@...hat.com>,
"tiwei.bie@...el.com" <tiwei.bie@...el.com>
CC: "virtualization@...ts.linux-foundation.org"
<virtualization@...ts.linux-foundation.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"cohuck@...hat.com" <cohuck@...hat.com>,
"maxime.coquelin@...hat.com" <maxime.coquelin@...hat.com>,
"cunming.liang@...el.com" <cunming.liang@...el.com>,
"zhihong.wang@...el.com" <zhihong.wang@...el.com>,
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Ido Shamay <idos@...lanox.com>,
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Subject: RE: [PATCH 1/6] mdev: class id support
Hi Jason,
> -----Original Message-----
> From: Jason Wang <jasowang@...hat.com>
> Sent: Monday, September 23, 2019 8:03 AM
> To: kvm@...r.kernel.org; linux-s390@...r.kernel.org; linux-
> kernel@...r.kernel.org; dri-devel@...ts.freedesktop.org; intel-
> gfx@...ts.freedesktop.org; intel-gvt-dev@...ts.freedesktop.org;
> kwankhede@...dia.com; alex.williamson@...hat.com; mst@...hat.com;
> tiwei.bie@...el.com
> Cc: virtualization@...ts.linux-foundation.org; netdev@...r.kernel.org;
> cohuck@...hat.com; maxime.coquelin@...hat.com;
> cunming.liang@...el.com; zhihong.wang@...el.com;
> rob.miller@...adcom.com; xiao.w.wang@...el.com;
> haotian.wang@...ive.com; zhenyuw@...ux.intel.com; zhi.a.wang@...el.com;
> jani.nikula@...ux.intel.com; joonas.lahtinen@...ux.intel.com;
> rodrigo.vivi@...el.com; airlied@...ux.ie; daniel@...ll.ch;
> farman@...ux.ibm.com; pasic@...ux.ibm.com; sebott@...ux.ibm.com;
> oberpar@...ux.ibm.com; heiko.carstens@...ibm.com; gor@...ux.ibm.com;
> borntraeger@...ibm.com; akrowiak@...ux.ibm.com; freude@...ux.ibm.com;
> lingshan.zhu@...el.com; Ido Shamay <idos@...lanox.com>;
> eperezma@...hat.com; lulu@...hat.com; Parav Pandit
> <parav@...lanox.com>; Jason Wang <jasowang@...hat.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@...hat.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/
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