RustInQemu

For the old RustInQemu page, see RustInQemu/2022

Active efforts in 2024

Subject: [RFC 0/6] scripts: Rewrite simpletrace printer in Rust
Date: Mon, 27 May 2024 16:14:15 +0800
RFC v1
ARM PL011 UART device model in Rust
Subject: [RFC PATCH v1 0/6] Implement ARM PL011 in Rust
Date: Mon, 10 Jun 2024 21:22:35 +0300
RFC v1 v2
- Meson integration
- Bindings generation

[RFC v3 00/32] Rust binding for QAPI and qemu-ga QMP handler examples
on patchew on lore

1.56.0: 2021 edition
1.59.0: const CStr::from_bytes_with_nul_unchecked (needed by cstr crate, see below)
1.64.0: std::ffi::c_char
1.74.0: Clippy can be configured in Cargo.toml
1.77.0: C string literals, offset_of!
- alternative: cstr crate, with_offsets macro

Before commit:

After commit:

experiments at https://github.com/bonzini/rust-qemu
- lower minimum supported version (Debian needs 1.63.0)
- Bindings part 1: Generic Rust<->C interop, Error, QOM
- lints:
Bindings part 2: MemoryRegion, Chardev, SysbusDevice

run clippy as part of "make check", possibly only if Rust is newer than some version (1.74.0 so that clippy can be configured in Cargo.toml?)
deny many individual lints, do not deny groups (complexity, perf, style, suspicious) on regular builds. allow unknown_lints.
add to CI a fallible job that runs on nightly clippy with -Dclippy::complexity -Dclippy::perf -Dclippy::suspicious -Dclippy::style -Dunknown_lints. the job should generally pass, and if a new lint triggers it probably should be added to Cargo.toml as either "allow" (rare) or "deny" (possibly after adding #[allow()] to the source).

- qemu-bridge-helper.c Re-write SUID C executable with useful features.

- hw/block/pflash_cfi01.c, hw/block/pflash_cfi02.c (claimed, WIP)

- hw/mem/nvdimm.c (suggested by Manos)

- hw/timer/i8254.c (claimed, WIP)