Method free_bars

pci/src/vfio.rs:825–845

(
        &mut self,
        allocator: &mut SystemAllocator,
        mmio32_allocator: &mut AddressAllocator,
        mmio64_allocator: &mut AddressAllocator,
    )

    // The `allocator` argument is unused on `aarch64`
    #[allow(unused_variables)]
    pub(crate) fn free_bars(
        &mut self,
        allocator: &mut SystemAllocator,
        mmio32_allocator: &mut AddressAllocator,
        mmio64_allocator: &mut AddressAllocator,
    ) -> Result<(), PciDeviceError> {
        for region in self.mmio_regions.iter() {
            match region.type_ {
                PciBarRegionType::IoRegion => {
                    allocator.free_io_addresses(region.start, region.length);
                }
                PciBarRegionType::Memory32BitRegion => {
                    mmio32_allocator.free(region.start, region.length);
                }
                PciBarRegionType::Memory64BitRegion => {
                    mmio64_allocator.free(region.start, region.length);
                }
            }
        }
        Ok(())
    }

    fn parse_msix_capabilities(&mut self, cap: u8) -> MsixCap {
        let msg_ctl = self.vfio_wrapper.read_config_word((cap + 2).into());