On Wed, August 8, 2018 5:30 pm, 3mp...@gmail.com wrote:
> Hi everyone,
>
>
> actually I'm a happy Qubes 3.2 user on Intel platform for more than a
> year now !
>
> I'm looking to upgrade my actual Skylake build with an AMD one with the
> new Ryzen Pinnacle Ridge CPU (R7 2700) and installing Qubes 4.0 on the
> same occasion. The Asrock X470 Taichi seems a really nice motherboard for
> it.
>
> I've found the IOMMU Groups of this motherboard on reddit :
> https://www.reddit.com/r/VFIO/comments/8i8yqq/iommu_groups_for_asrock_tai
> chi_x470/
>
> and it seems there's a big group 13 with LAN, USB and SATA controllers. I
> wonder if the netVM and USB VM will actually be able to passthrough these
> controllers if they are in the same IOMMU Group ?
>
> Any Ryzen / Qubes users can confirm this works OK or this is a no go ?

No experience with that exact configuration. You can often passthrough
devices individually even if they are in the same IOMMU group (older
versions of Xen had trouble). Suggest buying from some place with a good
return policy.

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