Re:Is it time for open processors?
by em3rgent0rdr on Friday January 19, 2018 @03:47PM
(#16189649)
Was is a unintentional bug, or was a deliberate design tradeoff favoring performance over security?
[ Parent
| on HN ]
I'm assuming the former, but I could be wrong.
Re:Is it time for open processors?
by em3rgent0rdr on Friday January 19, 2018 @07:11PM
(#16191128)
The risk of speculative updates to branch predictor and page tables was known to the research community for a while. Even if it was initially an unintentional bug, they had plenty of time to take precautions against it by prohibiting speculative updates.