OSTEP Chapter 15: Address Translation

This is part of our series going through OSTEP book chapters. The OSTEP textbook is freely available at Remzi's website if you like to follow along. This chapter extends the CPU virtualization playbook to memory. It's the same recipe: let the program run directly on the hardware, but interpose at carefully chosen points so the OS retains control. For memory, this happens at every memory access. Every load, store, and instruction fetch gets translated by hardware from a virtual to a physical addr