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This patch introduces new types for expressing CPU affinities. Instead of dealing with physical CPU numbers, affinities are expressed as rectangles in a grid of virtual CPU nodes. This clears the way to conveniently assign sets of adjacent CPUs to subsystems, each of them managing their respective viewport of the coordinate space. By using 2D Cartesian coordinates, the locality of CPU nodes can be modeled for different topologies such as SMP (simple Nx1 grid), grids of NUMA nodes, or ring topologies.
This is generic part of the Genode implementation. It consists of two parts: :_Core_: is the ultimate root of the Genode application tree and provides abstractions for the lowest-level hardware resources such as RAM, ROM, CPU, and generic device access. All generic parts of Core can be found here - for system-specific implementations refer to the appropriate 'base-<system>' directory. :_Base libraries and protocols_: that are used by each Genode component to interact with other components. This is the glue that holds everything together.