Am 09.05.2017 um 16:44 schrieb Fogh, Anders: >>> i.e. how does it perform on recent AMD systems? > > Sorry for the latency. Recent AMD is reported by Enrique Nissem to not > be vulnerable to the prefetch attack. TSX attack doesn't apply to AMD. > Hund, Willems & Holz wrote in 2013 that AMD was vulnerable to that > attack. The BTB is almost surely working in a different manner of > fashion if at all. So AMD may or may not be vulnerable to the DPF > attack, but none of the modern attacks should work - at least out of the > box.
But the promoted patch will also run on AMD systems, that's why I asked for the overhead. Thanks, //richard
