Page Fault Liberation Army or Gained in Translation

x86 processors contain a surprising amount of built-in memory translation logic, which is driven by various data tables with intricate entry formats, and can produce various kinds of traps and other interesting computational effects. These features are mostly relics of earlier, more civilized times, when Jedi Knights tried to protect the old republic OSes with segmentation, supervisor bits, and hardware task support, but were defeated by processor de-optimizations and performance concerns and left unused by both Windows and UNIX systems - and explored only by hackers.

Provided by: Topic: Hardware Date Added: Jan 2014 Format: Webcast

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