CS290N Extra-Performance Computer Architecture
Prof. Fred Chong
FQ 2006
Problem Set 14 (Xen - Nagy Mostafa)

1. What are the challenges faced when partitioning a machine to host
   multiple OSes ?

2. Full virtualization enables hosting unmodified operating systems,
   yet Xen uses paravirtualization. Why is that ? What is the drawback
   of paravirtualization ?

3. Why is it more difficult to virtualize memory management for x86
   architecture compared to RISC architectures ?

4. How can the OS be protected from the applications it runs when
   hosted on Xen ? How can the OS perform privileged operations ?