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Description of problem: [RFE]  [RFE] Need further hint and doc beyond logging "VFIO group is not viable!" ERR

RE: https://bugzilla.redhat.com/show_bug.cgi?id=1479894

Version-Release number of selected component (if applicable):
[root@netqe22 proc]# uname -a
Linux netqe22.knqe.lab.eng.bos.redhat.com 3.10.0-862.el7.bz1558328.x86_64 #1 SMP Thu Mar 22 11:10:59 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

I'll add something along the lines of "VFIO group not viable. All devices in IOMMU group should be bound to VFIO or unbound."

This is now in upstream DPDK and will get pulled into downstream on update.

https://git.dpdk.org/dpdk/commit/?id=da2d1d42f9638d0a1f8dc0617ac8fb0929dc2d6a