/usr/libexec/qemu-kvm \
-name "mouse-vm" \
-sandbox off \
-machine q35,pflash0=drive_ovmf_code,pflash1=drive_ovmf_vars \
-cpu Cascadelake-Server \
-nodefaults \
-vga std \
-chardev socket,id=qmp_id_qmpmonitor1,path=/var/tmp/monitor-qmpmonitor1,server=on,wait=off \
-chardev socket,id=qmp_id_catch_monitor,path=/var/tmp/monitor-catch_monitor,server=on,wait=off \
-mon chardev=qmp_id_qmpmonitor1,mode=control \
-mon chardev=qmp_id_catch_monitor,mode=control \
-device '

{"driver":"pcie-root-port","id":"root0","multifunction":true,"addr":"0x2","chassis":1,"port":16,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root1","addr":"0x2.0x1","chassis":2,"port":17,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root2","addr":"0x2.0x2","chassis":3,"port":18,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root3","addr":"0x2.0x3","chassis":4,"port":19,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root4","addr":"0x2.0x4","chassis":5,"port":20,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root5","addr":"0x2.0x5","chassis":6,"port":21,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root6","addr":"0x2.0x6","chassis":7,"port":22,"bus":"pcie.0"}

' \
-device '

{"driver":"pcie-root-port","id":"root7","addr":"0x2.0x7","chassis":8,"port":23,"bus":"pcie.0"}

' \
-device '

{"driver":"nec-usb-xhci","id":"usb1","bus":"root0"}

' \
-device '

{"driver":"virtio-scsi-pci","id":"virtio_scsi_pci0","bus":"root1"}

' \
-device '

{"driver":"scsi-hd","id":"image1","drive":"drive_image1","bus":"virtio_scsi_pci0.0","channel":0,"scsi-id":0,"lun":0,"bootindex":0}

' \
-device '

{"driver":"virtio-net-pci","mac":"52:54:20:f6:34:52","id":"net0","netdev":"tap0","bus":"root2","vectors":4}

' \
-device '

{"driver":"usb-tablet","id":"usb-tablet1","bus":"usb1.0","port":"1"}

' \
-device '

{"driver":"scsi-hd","id":"scsi-hd0","drive":"drive_data1","channel":0,"scsi-id":0,"lun":1}

' \
-blockdev '{"driver":"file","cache":

{"direct":true,"no-flush":false}

,"filename":"/mnt/rhel100-64-virtio-ovmf.raw","node-name":"drive_sys1"}' \
-blockdev '

{"driver":"raw","node-name":"drive_image1","file":"drive_sys1"}

' \
-blockdev '{"driver":"file","cache":

{"direct":true,"no-flush":false}

,"filename":"/mnt/data.raw","node-name":"file_data1"}' \
-blockdev '

{"driver":"raw","node-name":"drive_data1","file":"file_data1"}

' \
-blockdev '

{"node-name":"file_ovmf_code","driver":"file","filename":"/usr/share/OVMF/OVMF_CODE.secboot.fd","auto-read-only":true,"discard":"unmap"}

' \
-blockdev '

{"node-name":"drive_ovmf_code","driver":"raw","read-only":true,"file":"file_ovmf_code"}

' \
-blockdev '

{"node-name":"file_ovmf_vars","driver":"file","filename":"/mnt/rhel100-64-virtio-ovmf.raw_VARS.fd","auto-read-only":true,"discard":"unmap"}

' \
-blockdev '

{"node-name":"drive_ovmf_vars","driver":"raw","read-only":false,"file":"file_ovmf_vars"}

' \
-netdev tap,id=tap0,vhost=on \
-m 4096 \
-object '

{"qom-type":"memory-backend-ram","id":"mem-machine_mem","size":4294967296}

' \
-smp 4,maxcpus=4,cores=2,threads=1,sockets=2 \
-vnc :10 \
-rtc base=utc,clock=host \
-boot menu=off,strict=off,order=cdn,once=c \
-enable-kvm \
-qmp tcp:0:3333,server=on,wait=off \
-qmp tcp:0:9999,server=on,wait=off \
-qmp tcp:0:9888,server=on,wait=off \
-serial tcp:0:4444,server=on,wait=off \
-monitor stdio \

(guest)# mkfs.ext4 /dev/sdb
       # mount /dev/sdb /mnt
       # dd if=/dev/urandom of=/mnt/test bs=1M count=10 oflag=direct

# qemu-img info data.raw
image: data.raw
file format: raw
virtual size: 2 GiB (2147483648 bytes)
disk size: 107 MiB
Child node '/file':
    filename: data.raw
    protocol type: file
    file length: 2 GiB (2147483648 bytes)
    disk size: 107 MiB 

{"execute": "blockdev-create", "arguments": {"options": {"driver": "file", "filename": "/root/avocado/data/avocado-vt/dst1.raw", "size": 2147483648}, "job-id": "drive_dst1"}, "id": "lex1X2PU"}

{"execute": "blockdev-add", "arguments": {"node-name": "drive_dst1", "driver": "file", "filename": "/root/avocado/data/avocado-vt/dst1.raw", "aio": "threads", "auto-read-only": true}, "id": "pKwMj3Yo"} 

{"execute": "blockdev-mirror", "arguments": {"sync": "full", "auto-finalize": true, "auto-dismiss": true, "device": "drive_data1", "target": "drive_dst1", "job-id": "drive_src1_cSNn"}, "id": "tNK73gtr"} 

# qemu-img info dst1.raw 
image: dst1.raw
file format: raw
virtual size: 2 GiB (2147483648 bytes)
disk size: 2 GiB
Child node '/file':
    filename: dst1.raw
    protocol type: file
    file length: 2 GiB (2147483648 bytes)
    disk size: 2 GiB
    Format specific information:
        extent size hint: 1048576 

# qemu-img info /root/avocado/data/avocado-vt/dst1.qcow2 
image: /root/avocado/data/avocado-vt/dst1.qcow2
file format: qcow2
virtual size: 2 GiB (2147483648 bytes)
disk size: 109 MiB
cluster_size: 65536
Format specific information:
    compat: 1.1
    compression type: zlib
    lazy refcounts: false
    refcount bits: 16
    corrupt: false
    extended l2: false
Child node '/file':
    filename: /root/avocado/data/avocado-vt/dst1.qcow2
    protocol type: file
    file length: 2 GiB (2147483648 bytes)
    disk size: 109 MiB
    Format specific information:
        extent size hint: 1048576 

{"execute": "blockdev-add", "arguments": {"node-name": "drive_dst1", "driver": "file", "filename": "/root/avocado/data/avocado-vt/dst1.raw", "aio": "threads", "auto-read-only": true, "discard": "unmap"}, "id": "pKwMj3Yo"}

# qemu-img info data.raw
image: data.raw
file format: raw
virtual size: 2 GiB (2147483648 bytes)
disk size: 107 MiB
Child node '/file':
    filename: data.raw
    protocol type: file
    file length: 2 GiB (2147483648 bytes)
    disk size: 107 MiB