It’s possible to address the flaw through a mix of hardware and software, the researchers said, although it’s not certain how much this would affect performance. Software and firmware fixes for Meltdown and Spectre have typically involved speed penalties, although the exact hit depends on the task.
AMD relectunt to comment on this flaw where researchers submitted earlier in August 2019.
The findings haven’t been without controversy, although it doesn’t appear to be as questionable as some thought at first. While Hardware Unboxed found disclosures that Intel funded the research, raising concerns about the objectivity of the study, the authors have also received backing from Intel (and other sources) for finding flaws in the company’s own chips as well as other products. It appears to just be a general effort to spur security research, then. As it stands, the funding source doesn’t change the practical reality — AMD may have to tweak its CPU designs to safeguard against Take A Way attacks going forward.