linux-kernel - Re: [PATCH v7 4/4] vfio/xe: Add device specific vfio

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Message-ID: <20251128125322.34edbeaf.alex@shazbot.org>
Date: Fri, 28 Nov 2025 12:53:22 -0700
From: Alex Williamson <alex@...zbot.org>
To: Michał Winiarski <michal.winiarski@...el.com>
Cc: Lucas De Marchi <lucas.demarchi@...el.com>, Thomas Hellström <thomas.hellstrom@...ux.intel.com>, Rodrigo Vivi
 <rodrigo.vivi@...el.com>, Jason Gunthorpe <jgg@...pe.ca>, Yishai Hadas
 <yishaih@...dia.com>, Kevin Tian <kevin.tian@...el.com>, Shameer Kolothum
 <skolothumtho@...dia.com>, <intel-xe@...ts.freedesktop.org>,
 <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>, Matthew Brost
 <matthew.brost@...el.com>, "Michal Wajdeczko" <michal.wajdeczko@...el.com>,
 <dri-devel@...ts.freedesktop.org>, Jani Nikula
 <jani.nikula@...ux.intel.com>, Joonas Lahtinen
 <joonas.lahtinen@...ux.intel.com>, Tvrtko Ursulin <tursulin@...ulin.net>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, "Lukasz
 Laguna" <lukasz.laguna@...el.com>, Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH v7 4/4] vfio/xe: Add device specific vfio_pci driver
 variant for Intel graphics

On Thu, 27 Nov 2025 10:39:34 +0100
Michał Winiarski <michal.winiarski@...el.com> wrote:

> In addition to generic VFIO PCI functionality, the driver implements
> VFIO migration uAPI, allowing userspace to enable migration for Intel
> Graphics SR-IOV Virtual Functions.
> The driver binds to VF device and uses API exposed by Xe driver to
> transfer the VF migration data under the control of PF device.
> 
> Signed-off-by: Michał Winiarski <michal.winiarski@...el.com>
> Acked-by: Rodrigo Vivi <rodrigo.vivi@...el.com>
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
> ---
>  MAINTAINERS                  |   7 +
>  drivers/vfio/pci/Kconfig     |   2 +
>  drivers/vfio/pci/Makefile    |   2 +
>  drivers/vfio/pci/xe/Kconfig  |  12 +
>  drivers/vfio/pci/xe/Makefile |   3 +
>  drivers/vfio/pci/xe/main.c   | 573 +++++++++++++++++++++++++++++++++++
>  6 files changed, 599 insertions(+)
>  create mode 100644 drivers/vfio/pci/xe/Kconfig
>  create mode 100644 drivers/vfio/pci/xe/Makefile
>  create mode 100644 drivers/vfio/pci/xe/main.c

Reviewed-by: Alex Williamson <alex@...zbot.org>

Hopefully this can still go in via the drm window this cycle.  Thanks,

Alex