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QEMU Binary Translation

QEMU Binary Translation. Ashish Kaila (akaila) Maneet Singh (maneets). 1. Virtualization Techniques. Full Virtualization using Binary Translation. 2. Virtualization Techniques. OS Assisted Virtualization or Parav irtualization. 3. Virtualization Techniques.

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QEMU Binary Translation

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  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 Paravirtualization 3

  4. Virtualization Techniques • Hardware Assisted Virtualization 4

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

  6. Binary Translation • QEMU Binary Translation in brief Micro-operations implemented in C Source Inst Stream (binary) 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 – FabriceBellard 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

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