This Month in Rust OSDev: August 2025

content/this-month/2025-08/index.md

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+title = "This Month in Rust OSDev: August 2025"
+date = 2025-09-05
+
+[extra]
+month = "August 2025"
+editors = ["phil-opp"]
++++
+
+Welcome to a new issue of _"This Month in Rust OSDev"_. In these posts, we give a regular overview of notable changes in the Rust operating system development ecosystem.
+
+<!-- more -->
+
+This series is openly developed [on GitHub](https://github.com/rust-osdev/homepage/). Feel free to open pull requests there with content you would like to see in the next issue. If you find some issues on this page, please report them by [creating an issue](https://github.com/rust-osdev/homepage/issues/new) or using our <a href="#comment-form">_comment form_</a> at the bottom of this page.
+
+<!--
+    This is a draft for the upcoming "This Month in Rust OSDev (August 2025)" post.
+    Feel free to create pull requests against the `next` branch to add your
+    content here.
+    Please take a look at the past posts on https://rust-osdev.com/ to see the
+    general structure of these posts.
+-->
+
+## Announcements, News, and Blog Posts
+
+Here we collect news, blog posts, etc. related to OS development in Rust.
+
+<!--
+Please follow this template:
+
+- [Title](https://example.com)
+  - (optional) Some additional context
+-->
+
+- [This Month in Redox - August 2025](https://www.redox-os.org/news/this-month-250831/)
+- [Announcing Asterinas 0.16.0](https://asterinas.github.io/2025/08/04/announcing-asterinas-0.16.0.html)
+- [minimal FAT32 file system driver written in #[no_std] rust](https://www.reddit.com/r/rust/comments/1mrz2lu/i_just_published_a_minimal_fat32_file_system/)
+- [Writing a Hypervisor in 1,000 Lines](https://seiya.me/blog/hypervisor-in-1000-lines)
+- [Proka Kernel - A kernel for ProkaOS](https://github.com/RainSTR-Studio/proka-kernel)
+- [Introducing Rusted Firmware-A (RF-A) - A Rust-Based reimagination of Trusted Firmware-A](https://www.trustedfirmware.org/blog/rf-a-blog)
+- [nanomp3: A pure Rust `no_std` MP3 decoding library](https://github.com/robbie01/nanomp3)
+- [Video: Intrusive Linked Lists for Fun and Profit (on embedded)](https://www.youtube.com/watch?v=ct10kgmcFmE)
+
+## Infrastructure and Tooling
+
+In this section, we collect recent updates to `rustc`, `cargo`, and other tooling that are relevant to Rust OS development.
+
+<!--
+    Please use the following template:
+
+- [Title](https://example.com)
+  - (optional) Some additional context
+-->
+
+- [Make target pointer width in target json an integer](https://github.com/rust-lang/rust/pull/144443)
+- [Implement support for become and explicit tail call codegen for the LLVM backend](https://github.com/rust-lang/rust/pull/144232)
+
+
+## `rust-osdev` Projects
+
+In this section, we give an overview of notable changes to the projects hosted under the [`rust-osdev`](https://github.com/rust-osdev/about) organization.
+
+<!--
+    Please use the following template:
+
+    ### [`repo_name`](https://github.com/rust-osdev/repo_name)
+    <span class="maintainers">Maintained by [@maintainer_1](https://github.com/maintainer_1)</span>
+
+    The `repo_name` crate ...<<short introduction>>...
+
+    We merged the following changes this month:
+    <<changelog, either in list or text form>>
+-->
+
+
+### [`acpi`](https://github.com/rust-osdev/acpi)
+<span class="maintainers">Maintained by [@IsaacWoods](https://github.com/IsaacWoods)</span>
+
+The `acpi` repository contains crates for parsing the ACPI tables – data structures that the firmware of modern computers use to relay information about the hardware to the OS. We merged the following changes this month:
+
+- [Rewrite `acpi` crate and entire AML interpreter](https://github.com/rust-osdev/acpi/pull/246)
+
+
+### [`bootloader`](https://github.com/rust-osdev/bootloader)
+<span class="maintainers">Maintained by [@phil-opp](https://github.com/phil-opp) and [@Freax13](https://github.com/orgs/rust-osdev/people/Freax13)</span>
+
+The `bootloader` crate implements a custom Rust-based bootloader for easy loading of 64-bit ELF executables. This month, we merged the following fix:
+
+- [fix target-c-int-width for 0.9.x](https://github.com/rust-osdev/bootloader/pull/512)
+- [release v0.11.11](https://github.com/rust-osdev/bootloader/pull/510)
+
+
+### [`uefi-rs`](https://github.com/rust-osdev/uefi-rs)
+<span class="maintainers">Maintained by [@GabrielMajeri](https://github.com/GabrielMajeri), [@nicholasbishop](https://github.com/nicholasbishop), and [@phip1611](https://github.com/phip1611)</span>
+
+`uefi` makes it easy to develop Rust software that leverages safe, convenient,
+and performant abstractions for UEFI functionality.
+
+We merged the following PRs this month:
+
+
+- [Use size_of/align_of from prelude](https://github.com/rust-osdev/uefi-rs/pull/1734)
+- [Add (partial) safe protocol implementation for EFI_HII_DATABASE_PROTOCOL](https://github.com/rust-osdev/uefi-rs/pull/1719)
+- [xtask: improved error output for "wrong" repr](https://github.com/rust-osdev/uefi-rs/pull/1742)
+- [EFI Shell Interface: CurDir Functions](https://github.com/rust-osdev/uefi-rs/pull/1740)
+- [uefi-raw: move types to net module](https://github.com/rust-osdev/uefi-rs/pull/1747)
+- [uefi-raw: various small net improvements](https://github.com/rust-osdev/uefi-rs/pull/1748)
+- [uefi-raw: changelog update](https://github.com/rust-osdev/uefi-rs/pull/1751)
+
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1737) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.35.3](https://github.com/rust-osdev/uefi-rs/pull/1739) -->
+<!-- - [fix(deps): update rust crate proc-macro2 to v1.0.96](https://github.com/rust-osdev/uefi-rs/pull/1738) -->
+<!-- - [fix(deps): update rust crate clap to v4.5.44](https://github.com/rust-osdev/uefi-rs/pull/1736) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.35.4](https://github.com/rust-osdev/uefi-rs/pull/1743) -->
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1746) -->
+<!-- - [chore(deps): update actions/checkout action to v5](https://github.com/rust-osdev/uefi-rs/pull/1745) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.35.5](https://github.com/rust-osdev/uefi-rs/pull/1749) -->
+<!-- - [fix(deps): update rust crate cfg-if to v1.0.3](https://github.com/rust-osdev/uefi-rs/pull/1750) -->
+<!-- - [chore(deps): update rust crate bitflags to v2.9.3](https://github.com/rust-osdev/uefi-rs/pull/1744) -->
+
+Thanks to [@seijikun](https://github.com/seijikun) and [@RenTrieu](https://github.com/RenTrieu) for their contributions!
+
+
+### [`virtio-spec-rs`](https://github.com/rust-osdev/virtio-spec-rs)
+<span class="maintainers">Maintained by [@mkroening](https://github.com/mkroening)</span>
+
+The `virtio-spec` crate provides definitions from the Virtual I/O Device (VIRTIO) specification.
+This project aims to be unopinionated regarding actual VIRTIO drivers that are implemented on top of this crate.
+
+We merged the following PRs this month:
+
+- [fix(pci): capabilities are always little-endian](https://github.com/rust-osdev/virtio-spec-rs/pull/7)
+- [fix(pci): actually convert MMIO access to little endian](https://github.com/rust-osdev/virtio-spec-rs/pull/8)
+- [chore: release version 0.3.1](https://github.com/rust-osdev/virtio-spec-rs/pull/9)
+
+Thanks to [@Gelbpunkt](https://github.com/Gelbpunkt) for their contributions!
+
+
+### [`x86_64`](https://github.com/rust-osdev/x86_64)
+<span class="maintainers">Maintained by [@phil-opp](https://github.com/phil-opp), [@josephlr](https://github.com/orgs/rust-osdev/people/josephlr), and [@Freax13](https://github.com/orgs/rust-osdev/people/Freax13)</span>
+
+The `x86_64` crate provides various abstractions for `x86_64` systems, including wrappers for CPU instructions, access to processor-specific registers, and abstraction types for architecture-specific structures such as page tables and descriptor tables.
+
+We merged the following PRs this month:
+
+- [Bump actions/checkout from 4 to 5](https://github.com/rust-osdev/x86_64/pull/563)
+- [add PageFaultErrorCode::HLAT](https://github.com/rust-osdev/x86_64/pull/564)
+
+
+## Other Projects
+
+In this section, we describe updates to Rust OS projects that are not directly related to the `rust-osdev` organization. Feel free to [create a pull request](https://github.com/rust-osdev/homepage/pulls) with the updates of your OS project for the next post.
+
+<!--
+    Please use the following template:
+
+    ### [`owner_name/repo_name`](https://github.com/rust-osdev/owner_name/repo_name)
+    <span class="maintainers">(Section written by [@your_github_name](https://github.com/your_github_name))</span>
+
+    ...<<your project updates>>...
+-->
+
+
+<!-- <span class="gray">No projects updates were submitted this month.</span> -->
+
+### [`phil-opp/blog_os`](https://github.com/phil-opp/blog_os)
+<span class="maintainers">(Section written by [@phil-opp](https://github.com/phil-opp))</span>
+
+We merged the following changes to the [_Writing an OS in Rust_](https://os.phil-opp.com/) blog this month:
+
+- [Update post texts to Rust 2024](https://github.com/phil-opp/blog_os/pull/1432) (thanks to [thaliaarchi](https://github.com/phil-opp/blog_os/pull/1432))
+- [fix edition2@post-11 Chinese translation error](https://github.com/phil-opp/blog_os/pull/1428) (thanks to [ttttyy](https://github.com/phil-opp/blog_os/pull/1428))
+- [Add post-12 simplified Chinese translation](https://github.com/phil-opp/blog_os/pull/1429) (thanks to [ic3-w1ne](https://github.com/phil-opp/blog_os/pull/1429))
+- [fix(post-01): typo](https://github.com/phil-opp/blog_os/pull/1430) (thanks to [L3Sota](https://github.com/phil-opp/blog_os/pull/1430))
+- [Set `test=true` to enable `main.rs` testing again](https://github.com/phil-opp/blog_os/pull/1434)
+- [Update testing post to set `test = true` in Cargo.to](https://github.com/phil-opp/blog_os/pull/1435)
+- [Fix: `target-pointer-width` field now expects an integer](https://github.com/phil-opp/blog_os/pull/1436)
+- [Update blog for `target-pointer-width` change](https://github.com/phil-opp/blog_os/pull/1437)
+
+
+## Join Us?
+
+Are you interested in Rust-based operating system development? Our `rust-osdev` organization is always open to new members and new projects. Just let us know if you want to join! A good way for getting in touch is our [Zulip chat](https://rust-osdev.zulipchat.com).