Experimental KPTI Support For x86 32-bit Linux
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Joerg Roedel of SUSE sent out a set of 16 patches this week for providing (K)PTI support for x86-32. At the moment it's work-in-progress code for providing page table isolation to i686 Linux installations. The current KPTI code already helps in getting the x86 32-bit support up while these patches courtesy of SUSE are working to get it across the finish line.
So far though this code has just been tested with a KVM guest while Roedel is working on setting a physical 32-bit box for proper testing.
These "request for comments" patches providing x86 32-bit KPTI support for Meltdown protection can be found on the kernel mailing list.
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