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

[Nick Sarnie]

The ticket is still open, but it wouldn't fix a hang on startup. Do you see
any errors in dmesg?

On Mon, Mar 27, 2017 at 7:28 AM, Stano Lano <chl.xxx5x at gmail.com> wrote:

> Hello,
>
> did you have any luck with the ASUS support.
> I should have the same ASUS Prime X370-Pro.
> But when I enable IOMMU I am not able to boot, when the IOMMU is disable I
> have no problem to boot.
>
> I am on BIOS 0511 and kernel 4.10.5
> Tried with 0502, 0504 & 0511 BIOSes but no luck with any of them.
> Also tried with Fedora 25, 25 beta & Ubuntu 17.04 beta. Same behavior.
>
> Thanks
> Stano
>
> ------------------------------
>
>    - *From*: Nick Sarnie <commendsarnex gmail com>
>    - *To*: Alex Williamson <alex l williamson gmail com>
>    - *Cc*: vfio-users <vfio-users redhat com>
>    - *Subject*: Re: [vfio-users] Ryzen/X370 Chipset and IOMMU Groups
>    - *Date*: Fri, 10 Mar 2017 13:53:26 -0500
>
>
> 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,
> Sarnex
>
> 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:
>>>
>>> https://i.imgur.com/9hQUHX0.jpg
>>>
>>> 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:
>>
>> https://youtu.be/pipR5xhrLo0?t=20
>>
>> 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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