Trait virtio_driver::IovaTranslator

pub trait IovaTranslator: Send + Sync {
    fn translate_addr(&self, addr: usize, len: usize) -> Result<Iova, Error>;
}

Something that can translate process addresses into IOVAs.

Required Methods

fn translate_addr(&self, addr: usize, len: usize) -> Result<Iova, Error>

Determines the base IOVA corresponding to the given process address range.

If the transport requires memory to be mapped prior to use but the address doesn’t belong to a mapped memory region, an Err will be returned.

The addr..addr + len range must not cross memory region boundaries, otherwise Err is returned.

Implementors