I looked at microcode_amd_fam17h.bin (supposed microcode fix for Spectre) and it *only* applies to fam17h model 1 stepping *2*. Which as far as I can tell is EPYC. My Threadripper is stepping *1* and is *NOT* updated by this microcode. So consumer CPUs are NOT fixed yet.
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It's possible that AMD cooked up a new stepping in time for the EPYC release and they just released the microcode for it only for enterprise customers, which would be guaranteed to have stepping 2. So maybe retail chips of that stepping exist, but most would be 1, SOL for now.
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