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#!/bin/bash
# load_vgpu_stack.sh - Load complete vGPU driver stack
# Usage: ./load_vgpu_stack.sh [firmware_name]
set -euo pipefail
FIRMWARE_NAME="${1:-gsp-570.144.fwimage.bin}"
BASE_DIR="$OPEN_IOV_ROOT"
NVIDIA_KO="$BASE_DIR/nvidia-open-gpu-kernel-modules/kernel-open/nvidia.ko"
VFIO_KO="$BASE_DIR/kernel/open-iov-vfio.ko"
FIRMWARE_PATH="$BASE_DIR/firmware/57X-GSP/570.144/$FIRMWARE_NAME"
echo "=========================================="
echo "Loading vGPU Driver Stack (Refactored: Host-only GSP Emulation)"
echo "=========================================="
echo "Firmware: $FIRMWARE_NAME"
echo ""
# Check files exist
for f in "$NVIDIA_KO" "$VFIO_KO" "$FIRMWARE_PATH"; do
if [[ ! -f "$f" ]]; then
echo "ERROR: Missing file: $f"
exit 1
fi
done
# Load open-iov-vfio.ko FIRST (provides symbols nvidia.ko needs)
if lsmod | grep -q "^open_iov_vfio "; then
echo "open-iov-vfio.ko already loaded"
else
echo "Loading open-iov-vfio.ko..."
sudo insmod "$VFIO_KO"
echo " OK"
fi
# Check if already loaded
if lsmod | grep -q "^nvidia "; then
echo "nvidia.ko already loaded"
else
echo "Loading nvidia.ko (OpenRM)..."
sudo insmod "$NVIDIA_KO"
echo " OK"
fi
echo ""
echo "=========================================="
echo "Driver Stack Loaded Successfully"
echo "=========================================="
lsmod | grep -E "nvidia|open_iov"
echo ""
echo "Device nodes:"
ls -la /dev/nvidia* 2>/dev/null || echo " (none yet - create mdev first)"
echo ""
echo "Next steps:"
echo " 1. Create mdev: $BASE_DIR/scripts/create_mdev.sh"
echo " 2. Launch QEMU: $BASE_DIR/scripts/launch_qemu_vgpu.sh"
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