Struct IrqLine 

pub struct IrqLine { /* private fields */ }

IRQ delivery channel for a single virtio-MMIO device.

Cloning is cheap (Arc and friends); the underlying GIC handle is shared across every device on the bus.

Implementations

impl IrqLine

pub fn new(gic: Arc<dyn Gic + Send + Sync>, intid: IntId) -> Self

Build an IRQ line from a GIC handle and the device’s INTID.

pub fn status(&self) -> Arc<AtomicU32>

Atomic shadow of the MMIO InterruptStatus register. The transport BusDevice reads this on 0x60 reads and clears the matching bits on 0x64 writes.

pub fn trigger_queue(&self) -> Result<(), GicError>

Mark a queue-completion event and pulse the GIC line.

Errors

GicError if the GIC’s pulse fails.

pub fn trigger_config(&self) -> Result<(), GicError>

Mark a device-config-change event and pulse the GIC line.

Errors

GicError if the GIC’s pulse fails.

pub fn ack(&self, mask: u32)

Clear the bits the driver acked on a 0x64 write.

Trait Implementations

impl Clone for IrqLine

fn clone(&self) -> IrqLine

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IrqLine

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

Formats the value using the given formatter.