VM on VM

VMware

• きちんと設定されていないと次のように表示される
  

• ​VMware Communities: Running Nested VMs
  • VMware製品各種での設定がまとめられている

• 実用的な実行速度で動かすためのハードウェア条件
  • Intel VT-x
  • AMD-v with Barcelona or Phenom or later
    • AMD-V is supported on Rev F and later Family 0FH AMD64 processors, but current VMware products only support AMD-V on Family 10H or later AMD64 processors (Barcelona or Phenom). Thus, you can use AMD-V on Family 0FH Rev F and Rev G processors with Workstation 6.0. However, you need a Family 10H processor to use AMD-V with ESX 3.5 and Workstation 6.5 (or later).
    • 手持ちの「AMD Athlon 64 X2 5000+」では「MONITOR MODE: allowed modes : BT」となり、AMD-v使用不能。

• vmxファイルに以下の2行を追加すると可能になる(非Intel-VT, 非AMD-V環境では未テスト)

  monitor_control.vt32 = "TRUE"
  monitor_control.restrict_backdoor = "TRUE"
  

• IntelCPU+x64GuestだとVTが必須なので自動的に有効になる

  Software virtualization is incompatible with long mode on this platform. Virtual execution will begin in software mode, but will automatically switch to hardware mode if the guest enters long mode.
  

  • それ以外の環境では、次の1行もあった方が良いかも知れない(入れ子内のVMguestの起動が非常に遅くなり得る)

    monitor.virtual_exec = "hardware"
    

VMware Workstation on Intel VT

• Ubuntu 10.04 lucid on VMware Workstation 7.1.3 with Windows 7 x64 Host
  • Linux ubuntu32 2.6.32-26-generic #48-Ubuntu SMP Wed Nov 24 09:00:03 UTC 2010 i686 GNU/Linux
  • model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
• 仮想マシン設定 > ハードウェア > プロセッサ > 優先モード
  • 自動
    • vmware.log

      Dec 12 17:27:11.858: vmx| MONITOR MODE: allowed modes          : BT32 HV
      Dec 12 17:27:11.858: vmx| MONITOR MODE: user requested modes   : BT32 HV HWMMU
      Dec 12 17:27:11.858: vmx| MONITOR MODE: guestOS preferred modes: HWMMU BT32 HV
      Dec 12 17:27:11.858: vmx| MONITOR MODE: filtered list          : BT32 HV
      Dec 12 17:27:11.858: vmx| HV Settings: virtual exec = 'dynamic'; virtual mmu = 'software'
      

    • /proc/cpuinfo

      flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht nx lm constant_tsc arch_perfmon pebs bts tsc_reliable aperfmperf pni ssse3 cx16 hypervisor lahf_lm ida
      

  • Intel VT-xまたはAMD-V
    • diff of Ubuntu32.vmx

      -monitor.virtual_mmu = "automatic"
      -monitor.virtual_exec = "automatic"
      +monitor.virtual_mmu = "software"
      +monitor.virtual_exec = "hardware"
      

    • vmware.log

      Dec 12 17:53:28.574: vmx| MONITOR MODE: allowed modes          : BT32 HV
      Dec 12 17:53:28.574: vmx| MONITOR MODE: user requested modes   : HV
      Dec 12 17:53:28.574: vmx| MONITOR MODE: guestOS preferred modes: HWMMU BT32 HV
      Dec 12 17:53:28.574: vmx| MONITOR MODE: filtered list          : HV
      Dec 12 17:53:28.574: vmx| HV Settings: virtual exec = 'hardware'; virtual mmu = 'software'
      

    • /proc/cpuinfo

      flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht nx lm constant_tsc arch_perfmon pebs bts tsc_reliable aperfmperf pni ssse3 cx16 hypervisor lahf_lm ida
      

• 元々が「自動」だからなのか、CPU flagsに変化はなかった。