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Updated AMD Zen CPU Microcode Posted

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  • Updated AMD Zen CPU Microcode Posted

    Phoronix: Updated AMD Zen CPU Microcode Posted

    AMD has just dropped a new Family 17h "Zen" microcode file for Linux users...

    http://www.phoronix.com/scan.php?pag...mber-Microcode

  • #2
    That is very exciting news, we don't even know what is this about

    Does this MCExtractor works for linux microcodes? At least to show a bit more info about

    https://github.com/platomav/MCExtractor

    v1.16.2 r65
    Added Drunk AMD employee 3, wrong MC date
    v1.4.1
    Added Drunk AMD Employee #2, fixed Ryzen year typo

    Ha, ha OK, VIA is also drunk sometimes

    v1.8.0 r40
    Added Drunk VIA employee 1, wrong MC Signature
    Added Drunk VIA employee 2, wrong MC Checksum
    Last edited by dungeon; 29 November 2018, 07:21 PM.

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    • #3
      Microcode updates without a proper changelog?
      You'd think with all the CPU side-channel shitstorms that has been raging that at least some microcode update transparency was in order?

      Comment


      • #4
        Would be great if it's Zen2 or if they decided to fix erratum 1109 as a Christmas gift...

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        • #5
          Does it require new UEFI or it can be loaded without changing the above?

          Comment


          • #6
            I just cannt wait for the Epyc Rome 64 core benchmarks

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            • #7
              Could be for spectre. AMD was behind in releasing microcode update files, even after some UEFI/BIOS shipped it already.

              https://twitter.com/marcan42/status/1062370934227521536
              https://twitter.com/marcan42/status/1062383945692569601

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              • #8
                Originally posted by chithanh View Post
                AMD was behind in releasing microcode update files, even after some UEFI/BIOS shipped it already.
                Yeah, that was my thought too. If AMD is releasing Microcode updates, chances are there are already some BIOS updates shipping with it included.

                The release notes of those BIOS updates might shed some more light on what has changed.

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                • #9
                  Hopefully it fixes the random freezes when changing C-State, so that we can set the power supply settings back to low

                  Comment


                  • #10
                    Originally posted by shmerl View Post
                    Does it require new UEFI or it can be loaded without changing the above?
                    microcode is updated in the CPU by Linux during boot if the UEFI's loaded version is older. This update is not permanent though, and will happen again every time you reboot.

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