L3 is a
microkernel running on
Intel's x86 computers. L3 is designed to be "very lean and features fast, message-based, synchronous IPC, simple-to-use external paging mechanisms and a security mechanism based on secure domains (tasks, clans and chiefs)." It is the predecessor of
L4, another microkernel with similar design goals.
L3 is also the name of a full operating system based on the L3 microkernel.
Both were developed by Jochen Liedtke and his team at GMD's SET institute.
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