Function create_pci_device

crates/openshell-vfio/src/test_support.rs:16–39

(
    sysfs: &SysfsRoot,
    tmp: &Path,
    bdf: &str,
    vendor: &str,
    device: &str,
    class: &str,
    iommu_group: u32,
)

}

pub fn create_pci_device(
    sysfs: &SysfsRoot,
    tmp: &Path,
    bdf: &str,
    vendor: &str,
    device: &str,
    class: &str,
    iommu_group: u32,
) {
    let dev = sysfs.pci_device(bdf);
    fs::create_dir_all(&dev).unwrap();

    fs::write(dev.join("vendor"), format!("{vendor}\n")).unwrap();
    fs::write(dev.join("device"), format!("{device}\n")).unwrap();
    fs::write(dev.join("class"), format!("{class}\n")).unwrap();

    let group_dir = tmp.join(format!("kernel/iommu_groups/{iommu_group}"));
    fs::create_dir_all(&group_dir).unwrap();
    symlink(&group_dir, dev.join("iommu_group")).unwrap();

    let group_devices_dir = group_dir.join("devices");
    fs::create_dir_all(&group_devices_dir).unwrap();
    symlink(&dev, group_devices_dir.join(bdf)).unwrap();
}

/// Helper to create a fake driver symlink for a mock PCI device.
pub fn set_mock_driver(sysfs: &SysfsRoot, bdf: &str, driver_name: &str) {