January 4, 2020 9:35 AM, "awokd' via qubes-users" <[email protected]> wrote:
> Claudia: > >> I'm getting this message in my logs, about an IOMMU error, on both 4.0.2 and >> the F31-based 4.1 >> build. I'm as certain as I can be that the IOMMU is enabled in BIOS. I'm >> having issues with >> passthru and I'm wondering if this might be the cause. >> >> https://bugzilla.redhat.com/show_bug.cgi?id=1404139 >> This thread says it's not a bug, it's just because the system doesn't >> support IOMMUv2 and amdkfd >> (whatever that is) requires IOMMUv2 (whatever that is) for HSA (whatever >> that is). I don't really >> know what any of that means. >> >> Or does it just mean that my GPU is not protected by the IOMMU (same as >> iommu=no-igfx on Intel) and >> I don't have to worry about it? > > I saw in a different thread you made progress, so this is probably > outdated. However, I think your conclusions are correct. If your IOMMU > was not working correctly, you would have problems starting HVMs period. > I made progress on a couple of things, but not USB Qube. I was just wondering if might have something to do with USB controller passthru. However it may be that USB Qube is simply not supported on this system due to IOMMU grouping. Other passthru HVMs such as sys-net work fine, though, so I guess that means the IOMMU is working despite the error. > The Xen logs look similar to mine. I don't have kfd on my system. >From what I saw, I think kfd is an AMD thing. Do you have AMD? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/2d227faa21653704c60f57d5032e684a%40disroot.org.
