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Fedora Core 7 (FC7) Xen/KVM Guide
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Fully-virtualized guests (HVM/Intel-VT/AMD-V)

To run fully virtualized guests in Xen or KVM, host CPU support is needed. This is typically referred to as Intel VT, or AMD-V. To check for Intel VT support look for the 'vmx' flag, or for AMD-V support check for 'svm' flag:

  • ....For Intel....
    
    # grep vmx /proc/cpuinfo 
    
    flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
    
    
    
    ....For AMD....
    
    # grep svm /proc/cpuinfo
    
    flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy
    
    
    

/!\ On some Intel systems, virtualization support needs to be enabled in the BIOS. Please ensure that this has been done before proceeding.

Fedora Core 7 (FC7) Xen/KVM Guide
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