Libvirt domain I'm trying (w/o success) to use to install macOS High Sierra

highsierra.xml

<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
  <name>highsierra</name>
  <uuid>86fcec85-ce33-4c93-8118-bd22e669fa2b</uuid>
  <memory unit='KiB'>16777216</memory>
  <currentMemory unit='KiB'>16777216</currentMemory>
  <vcpu placement='static'>4</vcpu>
  <os>
    <type arch='x86_64' machine='pc-q35-2.9'>hvm</type>
    <loader readonly='yes' type='pflash'>/home/paul/vm/bios/highsierra/OVMF_CODE-pure-efi.fd</loader>
    <nvram>/home/paul/vm/bios/highsierra/OVMF_VARS-pure-efi.fd</nvram>
    <bootmenu enable='no'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <kvm>
      <hidden state='on'/>
    </kvm>
  </features>
  <cpu mode='host-passthrough' check='none'>
    <topology sockets='1' cores='2' threads='2'/>
  </cpu>
  <clock offset='localtime'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/mnt/transfer/vm/disks/highsierra.qcow2'/>
      <target dev='sda' bus='sata'/>
      <boot order='3'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='none' io='native'/>
      <source dev='/dev/sdb'/>
      <target dev='sdc' bus='usb'/>
      <boot order='1'/>
      <address type='usb' bus='0' port='4'/>
    </disk>
    <controller type='sata' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pcie-root'/>
    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
      <model name='i82801b11-bridge'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
    </controller>
    <controller type='pci' index='2' model='pci-bridge'>
      <model name='pci-bridge'/>
      <target chassisNr='2'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
    </controller>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <master startport='0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x2'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:00:20:30'/>
      <source bridge='virbr0'/>
      <model type='e1000-82545em'/>
      <address type='pci' domain='0x0000' bus='0x02' slot='0x02' function='0x0'/>
    </interface>
    <input type='keyboard' bus='usb'>
      <address type='usb' bus='0' port='2'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='3'/>
    </input>
    <input type='keyboard' bus='ps2'/>
    <graphics type='spice'>
      <listen type='none'/>
    </graphics>
    <sound model='ich9'>
      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
    </sound>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </video>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='5'/>
    </redirdev>
    <hub type='usb'>
      <address type='usb' bus='0' port='1'/>
    </hub>
    <memballoon model='none'/>
  </devices>
  <seclabel type='none' model='none'/>
  <qemu:commandline>
    <qemu:arg value='-device'/>
    <qemu:arg value='isa-applesmc,osk=ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc'/>
    <qemu:arg value='-cpu'/>
    <qemu:arg value='Penryn,vendor=GenuineIntel,kvm=on,+invtsc,vmware-cpuid-freq=on,'/>
  </qemu:commandline>
</domain>