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Intel Engineer Preparing To Land Change For Cleaning Up 32-bit x86 Linux Kernel Code
The work talked about back in January for improving the 32-bit PAE Linux kernel code for Physical Address Extensions to better jive with the code around Page Table Isolation (PTI) for mitigating the Meltdown vulnerability could soon be merged.
Intel Linux engineer Dave Hansen has been working to simplify the Physical Address Extensions (PAE) page table handling code in conjunction with the Page Table Isolation code, which is enabled in most environments for security concerns around Meltdown. Making the handling uniform removes a good amount of code at the cost of not sharing kernel PMDs. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software.
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