Method adopt

crates/openshell-vfio/src/pci.rs:63–75

Adopt ownership of a `PCIe` device that is already bound to `vfio-pci`. This is the restart-reconciliation counterpart to [`prepare_pci_for_passthrough`]. It validates that the device exists, that all IOMMU peers are already on `vfio-pci`, and that the primary BDF is currently bound to `vfio-pci`, then returns a guard that will restore the device on drop. It does not write `driver_override`, `new

(sysfs: &SysfsRoot, bdf: &str)

    /// the device on drop. It does not write `driver_override`, `new_id`, or
    /// `drivers_probe`.
    pub fn adopt(sysfs: &SysfsRoot, bdf: &str) -> Result<Self, VfioError> {
        validate_pci_for_passthrough(sysfs, bdf)?;
        ensure_bound_to_vfio(sysfs, bdf)?;

        let vfio_id = crate::bind::vfio_id_string(sysfs, bdf);

        Ok(Self::new_armed(
            bdf.to_string(),
            Vec::new(),
            sysfs.clone(),
            vfio_id,
        ))
    }

    /// Adopt ownership of a complete IOMMU group already bound to `vfio-pci`.
    ///