4 ms·
Wasn’t a spectre paper published some days ago, and extensively discussed on hn? All cpus can be affected by spectre. Including arm, mips, etc. Unless we total
by alanfranz 6y ago
Wasn’t a spectre paper published some days ago, and extensively discussed on hn?
All cpus can be affected by spectre. Including arm, mips, etc. Unless we totally disable speculative execution/branch prediction, which will impact performance. A lot.
EDIT: it wasn't a paper per-se, but the Google PoC: https://security.googleblog.com/2021/03/a-spectre-proof-of-concept-for-spectre.html https://security.googleblog.com/2021/03/a-spectre-proof-of-c...
- mhh__ 6y agoSpectre-like is the key thing here. They've introduced a new mechanism accessible presumably by a similar side channel (haven't read the paper yet)
- alanfranz 6y agoSpectre is a class of bugs right now. The "classical" spectre relies on branch prediction, here we have another kind of prediction... but it's not that different, IMHO.