init nix-os configuraion files

modules/nixos/virtualize/libvirtd/qemu.d/win11/prepare/begin/start.sh

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+#!/run/current-system/sw/bin/bash
+set -x
+
+# Xpad affects the work of the xbox controller and its wireless adapter
+# The xpad will shake hands with the handle/wireless adapter when it is plugged in. At this time, 
+# if you pass the usb device directly to the virtual machine, the xbox handle will not re-handshake with the root of windows,
+# which will eventually cause it to fail to work.
+# I can't find a way to make the usb device passthrough into the virtual machine from before/when it is plugged in,
+# so I suggest you disable this driver if you need to use the gamepad in virtual machine
+modprobe -r xpad
+
+# dGPU PCI slots
+pci_slot="01:00"
+
+# Determine whether the graphics card has been used by VFIO kernel modules
+if [ -z "$(lspci -k -s $pci_slot | grep vfio_pci)" ]; then
+    # Determine whether nvidia kernel modules has been loaded
+    lsmod_result=$(lsmod | grep nvidia)
+    if [ -n "$lsmod_result" ]; then
+        # Stop display manager
+        systemctl stop display-manager
+
+        sleep 2
+
+        # Unload NVIDIA kernel modules
+        modprobe -r nvidia_drm nvidia_modeset nvidia_uvm nvidia
+
+        # Unload AMD kernel module
+        # modprobe -r amdgpu
+    fi
+
+    # Detach GPU devices from host
+    # Use your GPU and HDMI Audio PCI host device
+    virsh nodedev-detach pci_0000_01_00_0
+    virsh nodedev-detach pci_0000_01_00_1
+
+    # Load vfio module
+    modprobe vfio_pci
+
+    if [ -n "$lsmod_result" ]; then
+        # Restart Display Manager
+        systemctl start display-manager
+    fi
+fi