[vfio-users] No IOMMU Groups seen in /sys/kernel/iommu_groups/

[Venumadhav Josyula]

So in the bios I need I check for ACPI :DMAR ?

On Fri, 22 Nov, 2019, 10:11 pm Alex Williamson, <alex.williamson at redhat.com>
wrote:

> On Fri, 22 Nov 2019 21:59:28 +0530
> Venumadhav Josyula <vjosyula at gmail.com> wrote:
>
> > Hi Alex,
> >
> > Pl find the dmesg & cpu model attached.
>
> The CPU supports VT-d (E5-2637v3), but the system firmware does not
> seem to provide a DMAR table, which is required for enabling VT-d.
> There should be an "ACPI: DMAR ..." line providing location and
> information about this table as show for other ACPI tables.  I can only
> conclude that VT-d support is not fully or properly enabled in the
> BIOS.  Please check the BIOS settings again.  Thanks,
>
> Alex
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20191122/ebeaadc8/attachment.htm>