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ARMvisor @ COSCUP2012
- 1. ARMvisor: ARM架構上系統虛擬機的實作 Peter Chang @ SSLab, Dept. of CS, NTHU phchang@sslab.cs.nthu.edu.tw This side is licensed under CC-BY-NC-SA 姓名標示─非商業性─相同方式分享 (http://creativecommons.org/licenses/by-nc-sa/3.0/tw/legalcode)
- 4. ARM
- 5. ARM
- 6. ARM
- 7. What is KVM?
- 8. What is KVM? A.k.a. Kernel-based Virtual Machine
- 9. What is KVM? A.k.a. Kernel-based Virtual Machine Type-II Virtual Machine Monitor
- 10. What is KVM? A.k.a. Kernel-based Virtual Machine Type-II Virtual Machine Monitor A module of Linux kernel
- 11. What is KVM?
- 12. What is KVM? Officially support x86/x64, PowerPC, S390
- 13. What is KVM? Officially support x86/x64, PowerPC, S390 No official support for ARM architecture
- 17. What is ARMvisor? ARM架構上的KVM Para-virtualization Trap & Emulation
- 18. What is ARMvisor? ARM架構上的KVM Para-virtualization Trap & Emulation Dynamic Memory Allocation
- 19. What is ARMvisor? ARM架構上的KVM Para-virtualization Trap & Emulation Dynamic Memory Allocation virtio & IRQchip-in-kernel
- 21. Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 22. ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 23. Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 24. QEMU 0.14 Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 25. QEMU 0.14 Device Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 26. QEMU 0.14 Device Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 27. Guest OS: Linux 2.6.35 QEMU 0.14 Device Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 28. Guest OS: Linux 2.6.35 QEMU 0.14 Device Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 29. Guest OS: Linux 2.6.35 Driver QEMU 0.14 Device Driver ARMvisor Host OS: Linux 2.6.38 Hardware: ARM Cortex-A8
- 30. Who are developers? @
- 31. 2012 2011 2010 2009
- 32. 2012 2011 2010 2009
- 33. 2012 2011 2010 Starting Point 2009
- 34. 2012 2011 2010 Starting Point 2009
- 35. 2012 2011 ARMvisor Prototype 2010 Starting Point 2009
- 36. 2012 2011 ARMvisor Prototype 2010 Starting Point 2009
- 37. 2012 CPU Opt & Mem Opt 2011 ARMvisor Prototype 2010 Starting Point 2009
- 38. 2012 CPU Opt & Mem Opt 2011 ARMvisor Prototype 2010 Starting Point 2009
- 39. I/O Opt 2012 CPU Opt & Mem Opt 2011 ARMvisor Prototype 2010 Starting Point 2009
- 45. Supported Hardware ARM Realview-eb ARM11 ARMv6 ISA
- 46. Supported Hardware TI BeagleBoard Cortex-A8 ARMv7 ISA
- 47. Supported Hardware QEMU emulator Emulating Vexpress-a9 QEMU Cortex-A9 ARMv7 ISA
- 48. Supported Software Patched Host OS: Linaro Linux 2.6.38 Host Root Filesystem Ubuntu/Debian RFS (CLI or GUI) QEMU 0.14
- 49. Supported Software Patched Guest OS: Linux 2.6.35 (running on ARMv6 ISA) Guest Root Filesystem: Ubuntu/Debian RFS (CLI or GUI)
- 51. Video demo
- 53. System model of ARMvisor
- 54. CPU virtualization ARM is non-virtualizable CPU Patch guest OS “Trap and emulation”
- 55. Sensitive instructions Sensitive Instructions Non-Sensitive Instructions
- 56. Privileged instructions Privileged instructions Non-Privileged instructions
- 58. Virtualizable CPU Sensitive Instructions
- 59. Virtualizable CPU Sensitive Privileged Instructions instructions
- 60. Virtualizable CPU Sensitive Instructions = Privileged instructions
- 61. Virtualizable CPU Sensitive Instructions = Privileged instructions Non-Sensitive Instructions
- 62. Virtualizable CPU Sensitive Instructions = Privileged instructions Non-Sensitive Non-Privileged Instructions instructions
- 63. Virtualizable CPU Sensitive Instructions = Privileged instructions Non-Sensitive Instructions = Non-Privileged instructions
- 64. Non-virtualizable CPU Sensitive Instructions = Privileged instructions Non-Privileged instructions Non-Sensitive Instructions
- 66. Critical Instructions S P NP NS
- 67. Critical Instructions S S&P P NP NS
- 68. Critical Instructions S S&P S&NP P NP NS
- 69. Critical Instructions S S&P S&NP P NP NS&P NS
- 70. Critical Instructions S S&P S&NP P NP NS&P NS&NP NS
- 71. Critical Instructions S S&P S&NP P NP NS
- 72. Critical Instructions S Privilege S&NP P NP NS
- 73. Critical Instructions S Privilege Critical P NP NS
- 74. “Trap & emulation” Guest%OS User%space% trap % Kernel%space VMM
- 77. Memory virtualization Static Partition Shadow Page Table
- 78. I/O virtualization virtio IRQ chip in kernel
- 79. virtio Vir$o&Driver Guest Vir$o&PCI&Controller Vring Transport Vir$o&PCI&Controller QEMU Vir$o&Device
- 80. irq_chip in kernel Guest Deliver7 GIC QEMU IRQ7 Control7 GIC7 Device Device Device IOCTL7 ARMvisor
- 81. irq_chip in kernel Guest Deliver$ IRQ$ QEMU Device Device Device Control$ GIC$ GIC$in$Kernel KVM
- 82. Future Works
- 83. Future Works
- 84. Future Works Support for ARM’s Virtualization extension
- 85. Future Works Support for ARM’s Virtualization extension Cortex-A15 and beyond
- 86. Future Works Support for ARM’s Virtualization extension Cortex-A15 and beyond SMP for host and guest
- 87. Future Works Support for ARM’s Virtualization extension Cortex-A15 and beyond SMP for host and guest AArch64 Support
- 88. Future Works Support for ARM’s Virtualization extension Cortex-A15 and beyond SMP for host and guest AArch64 Support ARMv8
- 89. By the way, ...
- 90. OpenSource
- 91. OpenSource We are going to opensource in late August, 2012.
- 92. OpenSource We are going to opensource in late August, 2012. GNU GPLv2
- 93. OpenSource We are going to opensource in late August, 2012. GNU GPLv2 Source code of Host and Guest OS
- 94. OpenSource We are going to opensource in late August, 2012. GNU GPLv2 Source code of Host and Guest OS User Guide
- 95. OpenSource We are going to opensource in late August, 2012. GNU GPLv2 Source code of Host and Guest OS User Guide Welcome to try and feedback to us :)
- 96. OpenSource
- 97. Q&A