Re: [PATCH v2 00/30] vfio: Introduce selftests for VFIO

[David Matlack <dmatlack@google.com>]

On Wed, Aug 27, 2025 at 11:55 AM Alex Williamson
<alex.williamson@redhat.com> wrote:
>
> On Fri, 22 Aug 2025 21:24:47 +0000
> David Matlack <dmatlack@google.com> wrote:
>
> > This series introduces VFIO selftests, located in
> > tools/testing/selftests/vfio/.
> >
> > VFIO selftests aim to enable kernel developers to write and run tests
> > that take the form of userspace programs that interact with VFIO and
> > IOMMUFD uAPIs. VFIO selftests can be used to write functional tests for
> > new features, regression tests for bugs, and performance tests for
> > optimizations.
> >
> > These tests are designed to interact with real PCI devices, i.e. they do
> > not rely on mocking out or faking any behavior in the kernel. This
> > allows the tests to exercise not only VFIO but also IOMMUFD, the IOMMU
> > driver, interrupt remapping, IRQ handling, etc.
> >
> > For more background on the motivation and design of this series, please
> > see the RFC:
> >
> >   https://lore.kernel.org/kvm/20250523233018.1702151-1-dmatlack@google.com/
> >
> > This series can also be found on GitHub:
> >
> >   https://github.com/dmatlack/linux/tree/vfio/selftests/v2
>
> Applied to vfio next branch for v6.18.  I've got a system with
> compatible ioatdma hardware, so I'll start incorporating this into my
> regular testing and hopefully convert some unit tests as well.  Thanks,

That sounds great. Thanks for your help with getting this merged. And
big thanks to Jason as well.