Operating systems notes
Virtualization & Hypervisors
Running a whole computer, its own OS and all, as a program on top of another computer. Every section is a drawn page beside a clear written explanation, about 17 minutes in all.
- Chapter 31 of 37
- About 17 minutes
- 8 sections
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In this chapter
- What virtualization really is
- Type-1 vs Type-2 hypervisors
- The classic challenge: trap-and-emulate
- Three ways to solve it: full, para, and hardware-assisted
- Memory virtualization: two levels of page tables
- I/O virtualization: the performance ladder
- VMs as files: snapshots, cloning & live migration
- Why engineers care, and the road to containers
Next chapters
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