{{Box|text=
'''1.''' Shut down the virtual machine(s).

{{CodeSelect|code=
virsh -c qemu:///system shutdown <vm_name>
}}

'''2.''' Increase the maximum memory.

{{CodeSelect|code=
virsh setmaxmem <vm_name> <memsize> --config
}}

'''3.''' Set the actual memory.

{{CodeSelect|code=
virsh setmem <vm_name> <memsize> --config
}}

'''4.''' Restart the virtual machine(s).

{{CodeSelect|code=
virsh -c qemu:///system start <vm_name>
}}
}}