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A comment on Intel Microcode Decryptor. Parent comment

Re:Intel Microcode Decryptor by asah on Tuesday July 19, 2022 @01:17PM (#32154919)
Atom and Core/Xeon don't share microcode? e.g. vulnerabilities in one would never work on the other?
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Re:Intel Microcode Decryptor by adrian_b on Tuesday July 19, 2022 @02:47PM (#32156175)
No, the microinstruction formats are very different, so also the microprograms must be different.

Even the newer Atom cores, e.g. the Tremont cores from Jasper Lake/Elkhart Lake/Snow Ridge/Parker Ridge/Lakefield have a different microinstruction format than that which has been published now.

For every generation of Intel CPUs, reverse-engineering the microcode requires all the work to be done again, what has been discovered for another generation cannot help much.

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