1. QEMU Binary Translation Ashish Kaila (akaila) Maneet Singh (maneets) 1

2. Virtualization Techniques  Full Virtualization using Binary Translation 2

3. Virtualization Techniques  OS Assisted Virtualization or Parav irtualization 3

4. Virtualization Techniques  Hardware Assisted Virtualization 4

5. Binary Translation  VMWare Software Virtualization Source Inst Stream (binary) IR1 IR2. IRn Translation Units (TU) IR1 IR2. IRn Target Inst Stream (binary) Compiled Code Fragment (CCF) Dynamic Binary Translator 5

6. Binary Translation  QEMU Binary Translation in brief Source Inst Stream (binary) Micro- operations implemented in C Object file Target Inst Stream (binary) dyngen 6

7. Quick EMUlation (QEMU)  Machine Emulator  Virtualizer QEMU modes:  User-mode emulation – Allows a process built for one CPU to be executed on another.  System-mode emulation – Allows emulation of a full system, including processor and assorted peripherals. 7

8. References A comparison of software and hardware techniques for x86 virtualization – Keith Adams, Ole Agesen, ASPLOS’06 Understanding Full Virtualization, Paravirtualization and Hardware Assist – VMware Whitepaper QEMU, a fast and portable Dynamic Translator – Fabrice Bellard QEMU Wiki: wiki.qemu.org 8

9. QEMU Deep Dive Source: wiki.qemu.org 9

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17. QEMU ARCHITECTURE 17

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20. Thank you 20