On 11/05/2017 10:38 AM, Patrick O'Callaghan wrote:
Then while the VM is running it doesn't show:
04:00.0 USB controller: Fresco Logic FL1100 USB 3.0 Host Controller (rev
ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: vfio-pci
However after
shutting down the VM I then get:
04:00.0 USB controller: Fresco Logic FL1100 USB 3.0 Host Controller (rev
ff) (prog-if ff)
!!! Unknown header type 7f
and have to reboot the host to get it back. I haven't even got to try
the MSI thing yet because sometimes the VM won't even start with it
passed through after this happens, so perhaps the card itself needs
some other kind of reset. I confess ignorance on this.
I'll keep hammering at it ...
poc
Your issue is reminiscent of this post:
https://www.redhat.com/archives/vfio-users/2016-June/msg00102.html
The workaround suggested by Alex further on in that thread solved the
problem for him. For me, my FL1100-based Sonnet Allegro Pro works fine
on an Ubuntu 17.04 install (kernel 4.10), so I believe that change made
it upstream at some point.
Steve
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