Intel VT Notes - 01

• VMX (Virtual Machine Extensions)
• VMM (Virtual Machine Monitor)
• Guest Software

[Basic VT Architecture]
Guest Software(VM)
---------
VMM(Virtual Machine Monitor)
---------
Hardware

• VMX Operation
  - VMX root operation
  - VMX non-root operation
• VMX Transition (VMX root operation <-> VMX non-root operation)
  - VM entries (VMX root operation ->VMX non-root operation)
  - VM exits (VMX non-root operation -> VMX root operation)
  
• No software-visible bit whose setting indicates whether a logical processor is
  in VMX non-root operation.
• Guest software can run at the privilege level for which it was originally designed.
  

關於 Virtualization

• 關於 Virtualization

• x86 virtualization

• 關於 Hypervisor

[Type 1 Hypervisor]

//Without Host OS

Guest OS
----------
Hypervisor
----------
Hardware

[Type 2 Hypervisor]

//With Host OS

Guest OS
----------
Hypervisor
----------
Host OS
----------
Hardware

• Linux Xen

• Xen FAQ

• paravirtualization(hypervisor call)

• KVM: Kernel-based Virtual Machine for Linux

想法：

目前 PS3 Linux 應該就是 Type 1 Hypervisor 了。
但如果每一顆 SPE 都跑一個 VM? 不知道結果會怎麼樣。嘿嘿～

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