Struct Piix4UsbUhciStub

#[non_exhaustive]
pub struct Piix4UsbUhciStub {}

PIIX4 (PCI device function 2) - USB configuration (stub)

See section 3.3 in the PIIX4 data sheet.

We only minimally support the UHCI controller because it is part of the chipset that we emulate.

If we wanted to support USB in the future, it is highly unlikely that we would implement it as part of the legacy chipset.

Implementations

impl Piix4UsbUhciStub

pub fn new() -> Self

Trait Implementations

impl ChangeDeviceState for Piix4UsbUhciStub

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 Piix4UsbUhciStub

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

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

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

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

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

Optionally returns a trait object to send MMIO port intercepts 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.

impl Debug for Piix4UsbUhciStub

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl InspectMut for Piix4UsbUhciStub

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

Inspects the object.

impl PciConfigSpace for Piix4UsbUhciStub

Sidestep the config space emulator, and match legacy stub behavior directly

fn pci_cfg_read(&mut self, offset: u16, value: &mut u32) -> IoResult

Dispatch a PCI config space read to the device with the given address.

fn pci_cfg_write(&mut self, offset: u16, value: u32) -> IoResult

Dispatch a PCI config space write to the device with the given address.

fn suggested_bdf(&mut self) -> Option<(u8, u8, u8)>

Check if the device has a suggested (bus, device, function) it expects to be located at.

impl SaveRestore for Piix4UsbUhciStub

type SavedState = NoSavedState

The concrete saved state type.

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

Saves the object’s state.

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

Restores the object’s state.