2 ms·
> which changes almost nothing from Sunny Cove besides L2 and L3 cache sizes AFAICT the attack targets buffers that go between L2 and L3, so it is isn't surpri
by titzer 4y ago
> which changes almost nothing from Sunny Cove besides L2 and L3 cache sizes
AFAICT the attack targets buffers that go between L2 and L3, so it is isn't surprising to me that it just happens to not work with a slightly different cache geometry.
- pbsd 4y agoGolden Cove has the same sizes as Willow Cove, though different geometry (10 vs 20-way L2, for example). However, Golden Cove's L3 has incredibly high latency compared to predecessors, which might be what makes it work by forcing data to stay in the superqueue longer.
- tptacek 4y agoOh, that's interesting (well, to a dummy like me); it suggests that the logic could be comparably broken, but we just can't observe it to be exploitable because the latency masks it off.