Hacker News Reader

I don't have hard evidence, but

A) they are vulnerable to two out of the three attacks, which indicates they did not in fact consider speculative execution a danger

B) it is hard to believe that if they researched the topic at AMD, they wouldn't find this vulnerability in Intel processors a long time ago

I note in passing that the AMD processor manual is explicit that all reads are checked against the privilege bit before being issued.

It’s this protection that means that AMD processors are not subject to meltdown.

All CPU manufacturers appear to have been caught on the hop by Spectre (branch prediction history side channels).

They did across priv boundaries which was the point.