MY macinabox worked fine under installation and over the virtio graphics but now it will not boot with the 5700xt passthrough, i have used this card before in an opencore build. any help is welcome. My XML is as follows,
<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
<name>Macinabox BigSur</name>
<uuid>(REDACTED)</uuid>
<description>MacOS Big Sur</description>
<metadata>
<vmtemplate xmlns="unraid" name="Windows 10" icon="BigSur.png" os="osx"/>
</metadata>
<memory unit='KiB'>104333312</memory>
<currentMemory unit='KiB'>104333312</currentMemory>
<memoryBacking>
<nosharepages/>
</memoryBacking>
<vcpu placement='static'>44</vcpu>
<cputune>
<vcpupin vcpu='0' cpuset='6'/>
<vcpupin vcpu='1' cpuset='34'/>
<vcpupin vcpu='2' cpuset='7'/>
<vcpupin vcpu='3' cpuset='35'/>
<vcpupin vcpu='4' cpuset='8'/>
<vcpupin vcpu='5' cpuset='36'/>
<vcpupin vcpu='6' cpuset='9'/>
<vcpupin vcpu='7' cpuset='37'/>
<vcpupin vcpu='8' cpuset='10'/>
<vcpupin vcpu='9' cpuset='38'/>
<vcpupin vcpu='10' cpuset='11'/>
<vcpupin vcpu='11' cpuset='39'/>
<vcpupin vcpu='12' cpuset='12'/>
<vcpupin vcpu='13' cpuset='40'/>
<vcpupin vcpu='14' cpuset='13'/>
<vcpupin vcpu='15' cpuset='41'/>
<vcpupin vcpu='16' cpuset='14'/>
<vcpupin vcpu='17' cpuset='42'/>
<vcpupin vcpu='18' cpuset='15'/>
<vcpupin vcpu='19' cpuset='43'/>
<vcpupin vcpu='20' cpuset='16'/>
<vcpupin vcpu='21' cpuset='44'/>
<vcpupin vcpu='22' cpuset='17'/>
<vcpupin vcpu='23' cpuset='45'/>
<vcpupin vcpu='24' cpuset='18'/>
<vcpupin vcpu='25' cpuset='46'/>
<vcpupin vcpu='26' cpuset='19'/>
<vcpupin vcpu='27' cpuset='47'/>
<vcpupin vcpu='28' cpuset='20'/>
<vcpupin vcpu='29' cpuset='48'/>
<vcpupin vcpu='30' cpuset='21'/>
<vcpupin vcpu='31' cpuset='49'/>
<vcpupin vcpu='32' cpuset='22'/>
<vcpupin vcpu='33' cpuset='50'/>
<vcpupin vcpu='34' cpuset='23'/>
<vcpupin vcpu='35' cpuset='51'/>
<vcpupin vcpu='36' cpuset='24'/>
<vcpupin vcpu='37' cpuset='52'/>
<vcpupin vcpu='38' cpuset='25'/>
<vcpupin vcpu='39' cpuset='53'/>
<vcpupin vcpu='40' cpuset='26'/>
<vcpupin vcpu='41' cpuset='54'/>
<vcpupin vcpu='42' cpuset='27'/>
<vcpupin vcpu='43' cpuset='55'/>
</cputune>
<os>
<type arch='x86_64' machine='pc-q35-4.2'>hvm</type>
<loader readonly='yes' type='pflash'>/mnt/user/system/custom_ovmf/Macinabox_CODE-pure-efi.fd</loader>
<nvram>/etc/libvirt/qemu/nvram/65fe3ad3-db17-467e-9101-102acd560273_VARS-pure-efi.fd</nvram>
</os>
<features>
<acpi/>
<apic/>
</features>
<cpu mode='host-passthrough' check='none' migratable='on'/>
<clock offset='utc'>
<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>restart</on_crash>
<devices>
<emulator>/usr/local/sbin/qemu</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='writeback'/>
<source file='/mnt/user/domains/Macinabox BigSur/vdisk3.img'/>
<target dev='hdc' bus='sata'/>
<boot order='1'/>
<address type='drive' controller='0' bus='0' target='0' unit='2'/>
</disk>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pcie-root'/>
<controller type='pci' index='1' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='1' port='0x8'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
</controller>
<controller type='pci' index='2' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='2' port='0x9'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='pci' index='3' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='3' port='0xa'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='4' model='pcie-root-port'>
<model name='pcie-root-port'/>
<target chassis='4' port='0x13'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/>
</controller>
<controller type='virtio-serial' index='0'>
<address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
</controller>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:c7:99:61'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</interface>
<serial type='pty'>
<target type='isa-serial' port='0'>
<model name='isa-serial'/>
</target>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<channel type='unix'>
<target type='virtio' name='org.qemu.guest_agent.0'/>
<address type='virtio-serial' controller='0' bus='0' port='1'/>
</channel>
<input type='tablet' bus='usb'>
<address type='usb' bus='0' port='1'/>
</input>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<audio id='1' type='none'/>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x07' slot='0x00' function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='usb' managed='no'>
<source>
<vendor id='0x1b1c'/>
<product id='0x1b2e'/>
</source>
<address type='usb' bus='0' port='2'/>
</hostdev>
<hostdev mode='subsystem' type='usb' managed='no'>
<source>
<vendor id='0x1b1c'/>
<product id='0x1b3b'/>
</source>
<address type='usb' bus='0' port='3'/>
</hostdev>
<hostdev mode='subsystem' type='usb' managed='no'>
<source>
<vendor id='0x1b1c'/>
<product id='0x1b2d'/>
</source>
<address type='usb' bus='0' port='4'/>
</hostdev>
<memballoon model='none'/>
</devices>
<qemu:commandline>
<qemu:arg value='-usb'/>
<qemu:arg value='-device'/>
<qemu:arg value='usb-kbd,bus=usb-bus.0'/>
<qemu:arg value='-device'/>
<qemu:arg value='************************'/>
<qemu:arg value='-smbios'/>
<qemu:arg value='type=2'/>
<qemu:arg value='-cpu'/>
<qemu:arg value='Penryn,kvm=on,vendor=GenuineIntel,+kvm_pv_unhalt,+kvm_pv_eoi,+hypervisor,+invtsc,+pcid,+ssse3,+sse4.2,+popcnt,+avx,+avx2,+aes,+fma,+fma4,+bmi1,+bmi2,+xsave,+xsaveopt,+rdrand,check'/>
</qemu:commandline>
</domain>