Virtualization with KVM
QEMU alone can provide full hardware emulation and system call trapping (Full virtualization).
QEMU + KVM (Kernel Virtual Machine module) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).
A virtual machine (VM) essentially consists of two parts:
XML configuration file: /etc/libvirt/qemu/vm.xml
Disk partition or image file, by default: /var/lib/libvirt/images/vm.qcow2
Exercise
To see if the processor supports hardware virtualization:
If 0 it means that your CPU doesn't support hardware virtualization.
If 1 or more it does - but you still need to make sure that virtualization is enabled in the BIOS.
Verify that the BIOS has virtualization enabled
If it shows
INFO: Your CPU supports KVM extensions
INFO: KVM is disabled by your BIOS
the Intel Virtualization Technology needs to be enabled in the BIOS.
On the other hand, if you see the outbut below, the Intel-VT is enabled.
INFO: Your CPU supports KVM extensions
INFO: /dev/kvm exists
KVM acceleration can be used
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