Crate machina_virtio_device 

Write Machina virtio devices in Rust.

This crate aims to simplify the writing of virtio devices as out of process FIDL services by automating boiler plate and providing common wrappers for Machina/Fuchsia specifics.

The primary helper is the Device object that wraps most of the common other helpers, and this must be constructed via the DeviceBuilder, although any of the individual helpers can be used independently without Device if desired.

Structs

Device

State for managing a virtio device and its queues using futures.

DeviceBuilder

Helper to process device messages and build a Device

GuestBellTrap

Wrapper for receiving bell traps from the guest.

GuestMem

Provide access to guest memory.

NotifyEvent

Wraps a zx::Event and implements DriverNotify

QueueConfig

Raw queue configuration from a VirtioDeviceRequest::ConfigureQueue

WrappedDescChainStream

Wrapper around a DescChainStream

Enums

BellError

DeviceError

Traits

QueueCheck

Describes the queues that are expected and valid for a device

Functions

builder_from_start_info

Construct a DeviceBuilder from the provided StartInfo

config_builder_from_stream

Process a VirtioDeviceRequestStream to configure all the queues.

from_start_info

Construct a DeviceBuilder and GuestMem from the provided StartInfo

guest_mem_from_vmo

Construct a new GuestMem containing the given zx::Vmo

translate_queue

Helper for constructing a QueueMemory