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Intel Prepares "Enhanced IBRS" As Better Spectre V2 Protection For Future CPUs

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  • Intel Prepares "Enhanced IBRS" As Better Spectre V2 Protection For Future CPUs

    Phoronix: Intel Prepares "Enhanced IBRS" As Better Spectre V2 Protection For Future CPUs

    An Intel engineer has today published a patch providing support for enhanced IBRS within the Linux kernel, which aims to provide better Spectre Variant Two protection by default with future generations of Intel CPUs...

    http://www.phoronix.com/scan.php?pag...-Enhanced-IBRS

  • #2
    "for capble CPUs"

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    • #3
      mitgiation
      Last edited by tildearrow; 24 July 2018, 06:01 PM.

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      • #4
        Originally posted by tildearrow View Post
        mitgiation
        Typing from a laptop for a few days, my eyes not working out well with the screen.
        Michael Larabel
        http://www.michaellarabel.com/

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        • #5
          Originally posted by Michael View Post

          Typing from a laptop for a few days, my eyes not working out well with the screen.
          Try taking a rest, or increasing the font size/UI scale.

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          • #6
            I wonder if this "Enhanced IBRS" is basically just doing what AMD processors have been doing, and if it's going to lower performance.

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            • #7
              Since these are future CPUs, shouldn't they be fixing the problem instead of mitigating it?

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              • #8
                Originally posted by RealNC View Post
                Since these are future CPUs, shouldn't they be fixing the problem instead of mitigating it?
                I doubt there will be a complete fix for such kind of problems -- it's very likely that new side channels would be discovered after fixing the known ones.

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                • #9
                  And still, new side-channel attacks are popping up faster than old ones are being "mitigated" (not fixed, mind you):

                  SpectreRBS
                  https://arxiv.org/pdf/1807.07940.pdf

                  ret2spec
                  https://christian-rossow.de/publicat...ec-ccs2018.pdf

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                  • #10
                    There's medications for irritable bowel syndrome. No need to slow down the processors.

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