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Re: [vfio-users] Ryzen/X370 Chipset and IOMMU Groups

Good luck with that.

I had a similar problem back in the ASUS Crosshair V Formula days and ASUS just refused to address the problem... They just replied "we don't support linux" period.

Gigiabyte on the other hand kept sending me new bioses for my GA-990FX-UD3 until the problem was fixed.

From that day on no ASUS anymore for me if I have a say in it...

Similar thing with their X79 boards and IB-E cpu's concerning Intel VT-d...

Only the very high-end/workstation boards got a fix... The rest could suck it...

Bottom-line I'd trade an ASUS board for a Gigabyte one anytime.

Hopefully ASUS did change over the years, but I highly doubt it.

Keep us posted though because I'm very interested if anything at ASUS has changed.

Kind regards,


Van: vfio-users-bounces redhat com <vfio-users-bounces redhat com> namens Nick Sarnie <commendsarnex gmail com>
Verzonden: vrijdag 10 maart 2017 19:53
Aan: Alex Williamson
CC: vfio-users
Onderwerp: Re: [vfio-users] Ryzen/X370 Chipset and IOMMU Groups
Yeah, that is unfortunate.

Thanks for helping with this issue. I've sent a ticket to Asus, but I'm not expecting much. Then again, I felt the same way and Gigabyte actually sent me a fixed bios, so who knows.

I'll keep you updated.

Thanks again,

On Fri, Mar 10, 2017 at 1:37 PM, Alex Williamson <alex l williamson gmail com> wrote:
On Fri, Mar 10, 2017 at 11:05 AM, Nick Sarnie <commendsarnex gmail com> wrote:
Hi Alex,

I don't see either of the options. I couldn't find Common Options at all, and here's a screenshot of the CBS settings:


Is this something I should ask Asus to add?

I suppose it wouldn't hurt to try to start the discussion with Asus.  The video I found was this one:

At that start time you can see an NBIO Common Options menu on an ASRock system, but I never saw him open it and I couldn't find any documentation on what might be in there in an asrock mb manual (not an endorsement for asrock, perhaps they just have a BIOS more similar to the AMD sample implementation).  If AMD put it into a menu of debug options, it's really no surprise that consumer firmware dropped it.  Too bad.  This feels like a repeat of the difficulty we had trying to find motherboards that allowed the IOMMU to be enabled when AMD-Vi came out.  I wonder if AVIC requires yet another BIOS option that consumers will need to gamble with.

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