Struct GpadlRingMem

pub struct GpadlRingMem { /* private fields */ }

An implementation of vmbus_ring::RingMem backed by an aligned GPADL view.

Implementations

impl GpadlRingMem

pub fn new( gpadl: AlignedGpadlView, mem: &GuestMemory, ) -> Result<Self, GuestMemoryError>

Creates a new ring memory backed by gpadl and mem.

Trait Implementations

impl Clone for GpadlRingMem

fn clone(&self) -> GpadlRingMem

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GpadlRingMem

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

Formats the value using the given formatter.

impl RingMem for GpadlRingMem

fn len(&self) -> usize

Returns the length of the ring in bytes.

fn read_at(&self, addr: usize, data: &mut [u8])

Reads from the data portion of the ring, wrapping (once) at the end of the ring. Precondition: addr + data.len() <= self.len() * 2.

fn write_at(&self, addr: usize, data: &[u8])

Writes to the data portion of the ring, wrapping (once) at the end of the ring. Precondition: addr + data.len() <= self.len() * 2.

fn read_aligned(&self, addr: usize, data: &mut [u8])

Reads from the data portion of the ring, as in RingMem::read_at. addr and data.len() must be multiples of 8.

fn write_aligned(&self, addr: usize, data: &[u8])

Writes to the data portion of the ring, as in RingMem::write_at. addr and data.len() must be multiples of 8.

fn control(&self) -> &[AtomicU32; 32]

Returns the control page.