Understanding CPU and I/O Virtualization: How Hypervisors Provide Isolation

The article explains the principles of CPU and I/O virtualization, the role of hypervisors in isolating virtual machines, the Popek‑Goldberg criteria for full virtualization, and the trade‑offs between full and paravirtualization approaches, illustrated with diagrams and concrete examples.

CPU virtualizationI/O virtualizationPopek-Goldberg

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Understanding CPU and I/O Virtualization: How Hypervisors Provide Isolation