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#!/bin/bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright (c) 2026 Open-IOV contributors
# unload_vgpu_stack.sh - Unload vGPU driver stack
set -euo pipefail
BASE_DIR="${OPEN_IOV_ROOT:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}"
echo "=========================================="
echo "Unloading vGPU Driver Stack"
echo "=========================================="
# Remove mdev devices first
echo "Removing mdev devices..."
for mdev in /sys/bus/mdev/devices/*/; do
if [[ -d "$mdev" ]]; then
UUID=$(basename "$mdev")
echo " Removing $UUID"
echo 1 | sudo tee "$mdev/remove" > /dev/null 2>&1 || true
fi
done
# Unload modules in reverse order
for mod in gsp_vgpu vgsp nvidia; do
if lsmod | grep -q "^$mod "; then
echo "Unloading $mod.ko..."
sudo rmmod "$mod" 2>/dev/null || echo " WARNING: $mod still in use"
else
echo "$mod.ko not loaded"
fi
done
echo ""
echo "=========================================="
echo "Driver Stack Unloaded"
echo "=========================================="
lsmod | grep -E "nvidia|open_iov|gsp_vgpu" || echo "No vGPU modules loaded"
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