Failed to assign device "(null)": Invalid argument

qemu-system-x86_64: -device pci-assign,host=01:00.0: Failed to assign device "(null)": Invalid argument

    -enable-kvm \
    -m 5120 \
    -machine pc-i440fx-2.0,accel=kvm \
    -cpu host,hv_relaxed,hv_vapic,hv_spinlocks=0x1000 \
    -smp 4,sockets=1,cores=4,threads=1 \
    -realtime mlock=off -rtc base=localtime \
    -boot menu=off,strict=on -vga qxl \
    -drive if=pflash,format=raw,readonly,file=/mnt/vm/OVMF/OVMF-pure-efi.fd \
    -drive if=pflash,format=raw,file=/mnt/vm/OVMF/OVMF_VARS-pure-efi.fd \
    -device virtio-scsi-pci,id=scsi \
    -device nec-usb-xhci,id=usb,bus=pci.0,addr=0x1.0x2 \
    -device usb-host,hostbus=8,hostport=1 \
    -device usb-host,hostbus=8,hostport=2 \
    -device pci-assign,host=01:00.0 \
    -device pci-assign,host=01:00.1 \
    -device pci-assign,host=03:06.0 \
    -cdrom /mnt/vm/install.iso \

CONFIG_PCI_STUB=y
# CONFIG_I2C_STUB is not set
CONFIG_CMDLINE="iommu=pt iommu=1 pci-stub.ids=10de:0a60,10de:0be3,13f6:0111"

options kvm-amd npt=0

/sys/kernel/iommu_groups/0/devices/:

0000:00:01.0 -> ../../../../devices/pci0000:00/0000:00:01.0
0000:00:01.1 -> ../../../../devices/pci0000:00/0000:00:01.1

/sys/kernel/iommu_groups/9/devices/:

0000:00:14.4 -> ../../../../devices/pci0000:00/0000:00:14.4
0000:03:06.0 -> ../../../../devices/pci0000:00/0000:00:14.4/0000:03:06.0