4 ms·
In this case AMD just doesn't support TSX instructions. For previous vulnerabilities with Meltdown I'd guess that AMD just didn't feel they had the engineering
by Symmetry 7y ago
In this case AMD just doesn't support TSX instructions. For previous vulnerabilities with Meltdown I'd guess that AMD just didn't feel they had the engineering resources to do after the fact validation of memory access permissions without architecturally leaking data in some weird corner case. But then along comes Meltdown and it turns out that non-architectural leaks are a thing that can happen and if you try to do after the fact validation you can't prevent them.