ThomasChung/KVM

Personal Note: KVM

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko. KVM also requires a modified QEMU although work is underway to get the required changes upstream.

Check VMX

• KVM is full virtualization. To run fully-virtualized guests, it requires a CPU with VMX extension for Intel Processors.

$ cat /proc/cpuinfo  | grep vmx

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 tm pbe nx lm constant_tsc pni monitor ds_cpl '''vmx''' est tm2 ssse3 cx16 xtpr lahf_lm

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 tm pbe nx lm constant_tsc pni monitor ds_cpl '''vmx''' est tm2 ssse3 cx16 xtpr lahf_m

Check BIOS

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

Check KVM

• To load kvm-intel,

$ su -c "/sbin/modprobe kvm-intel"

• To see if kvm-intel module loaded,

$ /sbin/lsmod | grep kvm
kvm_intel              21965  0
kvm                    62885  1 kvm_intel

Screenshots

• File:ThomasChung KVM error-virt-manager.py.png virt-manager Error]
• File:ThomasChung KVM Virtual Machine Manager.png Ready to install F6]
• File:ThomasChung KVM F6VM on F7.png F6 VM on F7]

References

• Innovation in virtualization management tools: libvirt for KVM and Xen in Fedora 7