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KPTI Support For 64-bit ARM Getting Buttoned Up Ahead Of Linux 4.16

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  • KPTI Support For 64-bit ARM Getting Buttoned Up Ahead Of Linux 4.16

    Phoronix: KPTI Support For 64-bit ARM Getting Buttoned Up Ahead Of Linux 4.16

    Kernel Page Table Isolation (KPTI) landed at the start of the year for x86/x86_64 systems for fending off the much talked about CPU attacks while the AMD64 / 64-bit ARM code is still a work-in-progress but looks like it will be squared away for the upcoming Linux 4.16 kernel cycle...

    http://www.phoronix.com/scan.php?pag...I-Squared-Away

  • #2
    As GKH said, kernel 4.4 will probably never receive the ARM KPTI patches (too bad this is the extra LTS version with 6 years of support ).

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    • #3
      Originally posted by Emmanuel Deloget View Post
      As GKH said, kernel 4.4 will probably never receive the ARM KPTI patches (too bad this is the extra LTS version with 6 years of support ).
      well, as far as android goes; https://github.com/aosp-mirror/kerne...roid-4.4-o-mr1

      might be trivial to apply over a non-android kernel, not sure...

      it's also been applied/backported to aosp's 3.18 kernel

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      • #4
        Originally posted by phoronix View Post
        Phoronix: KPTI Support For 64-bit ARM Getting Buttoned Up Ahead Of Linux 4.16

        ...fending off the much talked about CPU attacks while the AMD64 / 64-bit ARM code is still a work-in-progress but...

        http://www.phoronix.com/scan.php?pag...I-Squared-Away
        @Michael:
        Typpo? AMD64 should presumably be ARM64

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        • #5
          Originally posted by rgloor View Post

          @Michael:
          Typpo? AMD64 should presumably be ARM64
          Yep thanks
          Michael Larabel
          http://www.michaellarabel.com/

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          • #6
            Originally posted by RelaxTrolls View Post

            well, as far as android goes; https://github.com/aosp-mirror/kerne...roid-4.4-o-mr1

            might be trivial to apply over a non-android kernel, not sure...

            it's also been applied/backported to aosp's 3.18 kernel
            After reading the patches, trivial was not the word I had in mind

            Part of the problem is that these patches suppose that a gazillion other patches are already present in the tree - and that's not the case for the generic 4.4.y.

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