Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2

[Anthony Liguori <aliguori@us.ibm.com>]

Alex Williamson <alex.williamson@redhat.com> writes:

> VFIO kernel support was just merged into Linux, so I'd like to
> formally propose inclusion of the QEMU vfio-pci driver for
> QEMU 1.2.  Included here is support for x86 PCI device assignment.
> PCI INTx is not yet enabled, but devices making use of either MSI
> or MSI-X work.  The level irqfd and eoifd support I've proposed
> for KVM enable an accelerated patch for this through KVM.  I'd
> like to get this base driver in first and enable the remaining
> support in-tree.
>
> I've split this version up a little from the RFC to make it a bit
> easier to review.  Review comments from Blue Swirl and Avi are
> already incorporated, including Avi's requests to simplify both
> the PCI BAR mapping and unmapping paths.

Hi Alex,

Thanks for pushing this forward!  Hopefully this will finally kill off
qemu-kvm.git for good.

I think this series is going to have to wait for 1.3 to open up.  We
have a very short release window for this release and I'd feel a lot
more comfortable having such a significant feature spend some time in
the development cycle getting testing/review.

I'd like to see a few Reviewed-by's too for this series before it goes
in.  I expect they won't be hard to get but I also expect it will take a
few more revisions of this series to get there.

Regards,

Anthony Liguori

>
> This series is also available at:
>
> git://github.com/awilliam/qemu-vfio.git tags/vfio-pci-for-qemu-1.2
>
> Thanks,
>
> Alex
>
> ---
>
> Alex Williamson (3):
>       vfio: Enable vfio-pci and mark supported
>       vfio: vfio-pci device assignment driver
>       vfio: Import vfio kernel header
>
>
>  MAINTAINERS                |    5 
>  configure                  |   12 
>  hw/i386/Makefile.objs      |    1 
>  hw/vfio_pci.c              | 1853 ++++++++++++++++++++++++++++++++++++++++++++
>  hw/vfio_pci.h              |  101 ++
>  linux-headers/linux/vfio.h |  368 +++++++++
>  6 files changed, 2340 insertions(+)
>  create mode 100644 hw/vfio_pci.c
>  create mode 100644 hw/vfio_pci.h
>  create mode 100644 linux-headers/linux/vfio.h
> --
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