[vfio-users] Differences between AMD and Intel passthrough support

I'm looking into a new platform, and while researching Ryzen's compatibility with vt-d, I came across at least two forum posts wherein the author mentioned that passthru was not as well supported on AMD platforms as on Intel. In both cases the author did not elaborate, nor did they appear to be

Re: [vfio-users] GPU driver crashes when running a second VM if either VM has a virtual disk stored on physical media other than the root disk. Tested on three X58 chipset MBs

Thanks for the reply. There is no problem with USB on the host or guest when this happens, nor are there any errors on the console or in the logs. One of the first things I did was test without USB passthrough, and there was no difference. Furthermore, I've tested many kernels outside of that