libvirt virtual machine example

libvirt-vm.xml

<domain type='kvm' id='1'>
    <name>ubuntu-1804-hluo</name>
    <memory unit='KiB'>4194304</memory>
    <currentMemory unit='KiB'>4194304</currentMemory>
    <vcpu>2</vcpu>
    <cpu mode='host-passthrough'/>
    <os>
        <type arch='x86_64'>hvm</type>
        <boot dev='hd'/>
    </os>

    <features>
        <acpi/>
        <apic/>
        <pae/>
        <hap/>
    </features>

    <clock offset='localtime'/>

    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
    <on_crash>restart</on_crash>

    <devices>
        <emulator>/bin/qemu-system-x86_64</emulator>
        <disk type='file' device='disk'>
            <driver name='qemu' type='qcow2' cache='none' io='native'/>
            <source file='/root/hluo/vm/ubuntu-1804.img'/>
            <target dev='vda' bus='virtio'/>
        </disk>
        
        <disk type='file' device='cdrom'>
            <source file='/root/hluo/vm/virtio-win-0.1-52.iso'/>
            <target dev='hdc' bus='ide'/>
            <readonly/>
        </disk>
        
        <interface type='bridge'>
            <mac address='52:54:00:65:f3:de'/>
            <model type='virtio' />
            <driver name='vhost'/>
            <source bridge='virbr0'/>
        </interface>
        <input type='keyboard' bus='ps2' />
        <graphics type='vnc' port='5900' autoport='yes'>
            <listen type='address' address='0.0.0.0'/>
        </graphics>

        <video>
            <model type='cirrus' vram='16384' heads='1' primary='yes'/>
        </video>
        <serial type="file">
            <source path='/tmp/hluo-ubuntu-console.log'/>
        </serial>
    </devices>
</domain>