Re: [PATCH v2 10/11] bochs-rs: Add bochs block driver reimplementation in Rust

[Zhao Liu <zhao1.liu@intel.com>]

> +use crate::driver::{block_driver, BdrvChild, BlockDriver, Mapping, MappingTarget, Request};
> +use crate::SizedIoBuffer;
> +use qemu_api::bindings;

it's better to list all items from bindings here, which helps in understanding
which parts will need a wrapper added later.

> +use qemu_api::errno::Errno;
> +use qemu_api::futures::qemu_run_future;
> +use std::cmp::min;
> +use std::io::{self, Error, ErrorKind};
> +use std::mem::MaybeUninit;
> +use std::ptr;
> +use std::sync::Arc;

nit: we can fix style by "cargo +nightly fmt" with latest toolchain.

> +impl BlockDriver for BochsImage {

...

> +    async fn map(&self, req: &Request) -> io::Result<Mapping> {

v1.63 doesn't support async fn in trait, do we have to involve
async_trait crate?

Regards,
Zhao