Re: None issue
That is a very good bit of detective work gentlemen, congratulations.
One might also observe that the naming of the exploit (SEVered) also seems to be rather similar to another set of vunrabilities published under the name "RyzenFall".
Almost as if a competitor is trying to damage a competitors brand name to prevent them from gaining market share isin't it? Also strange how difficult it is to get business desktops with AMD chippery in from the companies that were found to have been paid by Intel to exclude AMD from the market last time around...