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



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 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:


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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