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New Linux Patches Confirm Next-Gen EPYC "Milan" CPUs To Support MPK

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  • New Linux Patches Confirm Next-Gen EPYC "Milan" CPUs To Support MPK

    Phoronix: New Linux Patches Confirm Next-Gen EPYC "Milan" CPUs To Support MPK

    Recently we noted the latest revision to AMD's Programmer Reference Manual points to PCID and MPK/PKEY support coming on future CPUs. New Linux patches now confirm that the MPK support is on the way with next-gen EPYC processors...

    http://www.phoronix.com/scan.php?pag...Does-MPK-Linux

  • #2
    Is this going into desktop models as well ( 4000' series) ?

    Comment


    • #3
      So this is not encrypted memory for the host Linux? Just guests running under KVM?
      I was hoping that the host could run with full memory encryption.

      Comment


      • #4
        Originally posted by milkylainen View Post
        So this is not encrypted memory for the host Linux? Just guests running under KVM?
        I was hoping that the host could run with full memory encryption.
        AFAIK, this is just page access control. Not encryption.

        Comment


        • #5
          Originally posted by cjcox View Post

          AFAIK, this is just page access control. Not encryption.
          Oh. To bad. I was hoping for transparent full memory encryption. Something to stop row hammering and cold data problems.

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          • #6
            Originally posted by milkylainen View Post

            Oh. To bad. I was hoping for transparent full memory encryption. Something to stop row hammering and cold data problems.
            Something like this?
            https://developer.amd.com/wordpress/..._v7-Public.pdf

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            • #7
              Originally posted by agd5f View Post
              Yep. Exactly. Tnx.

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