feat: Add VFIO binding script and update playbook for enhanced virtualization support

ansible/files/vfio-bind.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+DEV="$1"
+VENDOR="$2"
+DEVICE="$3"
+
+if [ -z "$DEV" ] || [ -z "$VENDOR" ] || [ -z "$DEVICE" ]; then
+    echo "Usage: $0 <PCI_DEVICE_ID> <VENDOR_ID> <DEVICE_ID>"
+    echo "Example: $0 0000:3b:00.0 8086 1520"
+    exit 1
+fi
+
+# Wait until device exists
+for i in {1..20}; do
+    [ -e /sys/bus/pci/devices/$DEV ] && break
+    sleep 0.5
+done
+
+# Unbind from current driver 
+logger -t vfio-bind "Binding device $DEV (vendor: $VENDOR, device: $DEVICE) to vfio-pci"
+if [ -L /sys/bus/pci/devices/$DEV/driver ]; then
+    logger -t vfio-bind "Unbinding device $DEV from current driver"
+    echo "$DEV" > /sys/bus/pci/devices/$DEV/driver/unbind
+fi
+
+# Tell kernel to prefer vfio-pci
+logger -t vfio-bind "Setting driver override to vfio-pci for device $DEV"
+echo vfio-pci > /sys/bus/pci/devices/$DEV/driver_override
+
+# Bind to vfio-pci
+logger -t vfio-bind "Binding device $DEV to vfio-pci driver"
+echo "$DEV" > /sys/bus/pci/drivers/vfio-pci/bind