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Amd still has almost no server marketshare. This attack specifically leverages tsx, which is an Intel set of transactional extensions to the cpu microcode. Intel has since published microcode updates to enable you to disable tsx.

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> Amd still has almost no server marketshare.

Yet another Intel exclusive side channel vulnerability might help change that. This side channel stuff is terrible for cloud operators. Every time they have to adopt another layer of mitigation some fraction of their capacity disappears in a puff of shame and excuses.

Not sure you've been keeping up but in 2020 most major server makers have switched or at least offer an epyc varient because the price/performance is better even without Intel's constant security woes

Yes but most enterprise customers have reacted by buying more Intel chips, because the cost of migrating infrastructure is much greater. Once you're invested deep into the omni-path level interconnects and spend 100k+ on cables alone, buying a few extra blades isn't a huge deal. Speaking as someone who has sat in on meetings where we negotiate with vendors for 1ku pricing.

The big migration will happen in about 2-4 years. Typical enterprise schedule is 3-5 year cycles, zen2 launch was 2019.

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