Struct IntelVtdDevice 

pub struct IntelVtdDevice { /* private fields */ }

Intel VT-d IOMMU emulator device.

A pure MMIO platform device (no PCI config space) discovered via the ACPI DMAR table. Implements the VT-d register file for IOMMU control, DMA translation, interrupt remapping, invalidation queue, and fault recording.

Implementations

impl IntelVtdDevice

pub fn new( guest_memory: GuestMemory, config: IntelVtdConfig, signal_msi: Arc<dyn SignalMsi>, ) -> (Self, Arc<VtdSharedState>)

Create a new Intel VT-d IOMMU device.

guest_memory is used for reading root/context/page tables and IRT. signal_msi is the partition’s MSI delivery handle — used for the IOMMU’s own fault event and invalidation completion interrupts.

pub fn shared_state(&self) -> &Arc<VtdSharedState>

Returns the shared IOMMU state for creating per-device wrappers.

Trait Implementations

impl ChangeDeviceState for IntelVtdDevice

fn start(&mut self)

Starts a device, allowing it to interact with the guest asynchronously.

async fn stop(&mut self)

Stops a device’s asynchronous work.

async fn reset(&mut self)

Resets the device state to its initial state, for a fresh boot.

impl ChipsetDevice for IntelVtdDevice

fn supports_mmio(&mut self) -> Option<&mut dyn MmioIntercept>

Optionally returns a trait object to send MMIO port intercepts to.

fn supports_pio(&mut self) -> Option<&mut (dyn PortIoIntercept + 'static)>

Optionally returns a trait object to send IO port intercepts to.

fn supports_pci(&mut self) -> Option<&mut (dyn PciConfigSpace + 'static)>

Optionally returns a trait object to send PCI config space accesses to.

fn supports_poll_device(&mut self) -> Option<&mut dyn PollDevice>

Optionally returns a trait object to send poll requests to.

fn supports_line_interrupt_target( &mut self, ) -> Option<&mut dyn LineInterruptTarget>

Optionally returns a trait object to send interrupt line changes to.

fn supports_handle_eoi(&mut self) -> Option<&mut dyn HandleEoi>

Optionally returns a trait object to send EOI requests to.

fn supports_acknowledge_pic_interrupt( &mut self, ) -> Option<&mut dyn AcknowledgePicInterrupt>

Optionally returns a trait object with which to acknowledge PIC interrupts.

fn supports_tdisp_host(&mut self) -> Option<&mut dyn TdispHostDeviceTarget>

Optionally returns a trait object which advertises that the ChipsetDevice can respond to tdisp requests as a physical device (not relayed) in the host (openvmm).

fn supports_tdisp_relay(&mut self) -> Option<&mut dyn TdispRelayedDeviceTarget>

Optionally returns a trait object which advertises that the ChipsetDevice is paravirtualizing a device’s TDISP interface in the guest. This should only be implemented within a guest as part of a virtual bus (VPCI, EPCI).

impl InspectMut for IntelVtdDevice

fn inspect_mut(&mut self, req: Request<'_>)

Inspects the object.

impl MmioIntercept for IntelVtdDevice

fn mmio_read(&mut self, addr: u64, data: &mut [u8]) -> IoResult

Dispatch an MMIO read to the device with the given address.

fn mmio_write(&mut self, addr: u64, data: &[u8]) -> IoResult

Dispatch an MMIO write to the device with the given address.

fn get_static_regions(&mut self) -> &[(&str, RangeInclusive<u64>)]

Report a set of static static mmio regions (region_name, gpa_range) that cannot be remapped at runtime and are always registered.

impl SaveRestore for IntelVtdDevice

type SavedState = SavedStateNotSupported

The concrete saved state type.

fn save(&mut self) -> Result<Self::SavedState, SaveError>

Saves the object’s state.

fn restore(&mut self, state: Self::SavedState) -> Result<(), RestoreError>

Restores the object’s state.