[fedora-virt] vfio Fedora 19

[James Hubbard]

On Wed, Oct 16, 2013 at 9:11 AM, Cole Robinson <crobinso at redhat.com> wrote:

> On 10/16/2013 09:03 AM, James Hubbard wrote:
> > On Wed, Oct 16, 2013 at 7:31 AM, Cole Robinson <crobinso at redhat.com
> > <mailto:crobinso at redhat.com>> wrote:
> >
> >     Sounds like your system doesn't have an iommu or it isn't enabled,
> confirm
> >     with the 'verify' steps here:
> >
> >
> http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM#Assigning_device_to_guest
> >
> >     > BTW, this is not generating an error message in virt-manager like
> it was
> >     prior
> >     > to updating to virt-preview.
> >     >
> >
> >     Make sure you restart virt-manager after updating. If after that you
> can see
> >     the error in the --debug output but not from the UI, please file a
> bug and
> >     make sure to mention your virt-manager version.
> >
> >
> > The setting intel_iommu is enabled.  I was able to get the Intel i350
> cards
> > setup with SR-IOV.  The DMAR and IOMMU items show up fine.
> >
>
> Are there any dmesg messages about vfio? The module was autoloaded for me
> on
> f19, that lack of autoload coupled with the libvirt error make me think
> something is weird with your hardware, or at least the kernel thinks so.
>
> Regardless, please file a libvirt bug so we can track this.
>

I'm not seeing any error messages in dmesg when attempting to start.  When
I do modprobe vfio-pci I do see:
VFIO - User Level meta-driver version: 0.3

It wouldn't suprise me if it was a hardware problem.  The motherboard is a
SuperMicro X9DRD-iF with a version 1.0 firmware.  I've seen some flakiness
with another SuperMicro motherboard when intel_iommu=on is set.

Thanks for the help
James Hubbard
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