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CPUM - CPU Monitor / Manager

The CPU Monitor / Manager keeps track of all the CPU registers. It is also responsible for lazy FPU handling and some of the context loading in raw mode.

There are three CPU contexts, the most important one is the guest one (GC). When running in raw-mode (RC) there is a special hyper context for the VMM part that floats around inside the guest address space. When running in raw-mode, CPUM also maintains a host context for saving and restoring registers accross world switches. This latter is done in cooperation with the world switcher (

See also:

The CPU Monitor / Manager API

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