|
| 1 | ++++ |
| 2 | +title = "This Month in Rust OSDev: August 2025" |
| 3 | +date = 2025-09-05 |
| 4 | + |
| 5 | +[extra] |
| 6 | +month = "August 2025" |
| 7 | +editors = ["phil-opp"] |
| 8 | ++++ |
| 9 | + |
| 10 | +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. |
| 11 | + |
| 12 | +<!-- more --> |
| 13 | + |
| 14 | +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. |
| 15 | + |
| 16 | +<!-- |
| 17 | + This is a draft for the upcoming "This Month in Rust OSDev (August 2025)" post. |
| 18 | + Feel free to create pull requests against the `next` branch to add your |
| 19 | + content here. |
| 20 | + Please take a look at the past posts on https://rust-osdev.com/ to see the |
| 21 | + general structure of these posts. |
| 22 | +--> |
| 23 | + |
| 24 | +## Announcements, News, and Blog Posts |
| 25 | + |
| 26 | +Here we collect news, blog posts, etc. related to OS development in Rust. |
| 27 | + |
| 28 | +<!-- |
| 29 | +Please follow this template: |
| 30 | +
|
| 31 | +- [Title](https://example.com) |
| 32 | + - (optional) Some additional context |
| 33 | +--> |
| 34 | + |
| 35 | +- [This Month in Redox - August 2025](https://www.redox-os.org/news/this-month-250831/) |
| 36 | +- [Announcing Asterinas 0.16.0](https://asterinas.github.io/2025/08/04/announcing-asterinas-0.16.0.html) |
| 37 | +- [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/) |
| 38 | +- [Writing a Hypervisor in 1,000 Lines](https://seiya.me/blog/hypervisor-in-1000-lines) |
| 39 | +- [Proka Kernel - A kernel for ProkaOS](https://github.com/RainSTR-Studio/proka-kernel) |
| 40 | +- [Introducing Rusted Firmware-A (RF-A) - A Rust-Based reimagination of Trusted Firmware-A](https://www.trustedfirmware.org/blog/rf-a-blog) |
| 41 | +- [nanomp3: A pure Rust `no_std` MP3 decoding library](https://github.com/robbie01/nanomp3) |
| 42 | +- [Video: Intrusive Linked Lists for Fun and Profit (on embedded)](https://www.youtube.com/watch?v=ct10kgmcFmE) |
| 43 | + |
| 44 | +## Infrastructure and Tooling |
| 45 | + |
| 46 | +In this section, we collect recent updates to `rustc`, `cargo`, and other tooling that are relevant to Rust OS development. |
| 47 | + |
| 48 | +<!-- |
| 49 | + Please use the following template: |
| 50 | +
|
| 51 | +- [Title](https://example.com) |
| 52 | + - (optional) Some additional context |
| 53 | +--> |
| 54 | + |
| 55 | +- [Make target pointer width in target json an integer](https://github.com/rust-lang/rust/pull/144443) |
| 56 | +- [Implement support for become and explicit tail call codegen for the LLVM backend](https://github.com/rust-lang/rust/pull/144232) |
| 57 | + |
| 58 | + |
| 59 | +## `rust-osdev` Projects |
| 60 | + |
| 61 | +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. |
| 62 | + |
| 63 | +<!-- |
| 64 | + Please use the following template: |
| 65 | +
|
| 66 | + ### [`repo_name`](https://github.com/rust-osdev/repo_name) |
| 67 | + <span class="maintainers">Maintained by [@maintainer_1](https://github.com/maintainer_1)</span> |
| 68 | +
|
| 69 | + The `repo_name` crate ...<<short introduction>>... |
| 70 | +
|
| 71 | + We merged the following changes this month: |
| 72 | + <<changelog, either in list or text form>> |
| 73 | +--> |
| 74 | + |
| 75 | + |
| 76 | +### [`acpi`](https://github.com/rust-osdev/acpi) |
| 77 | +<span class="maintainers">Maintained by [@IsaacWoods](https://github.com/IsaacWoods)</span> |
| 78 | + |
| 79 | +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: |
| 80 | + |
| 81 | +- [Rewrite `acpi` crate and entire AML interpreter](https://github.com/rust-osdev/acpi/pull/246) |
| 82 | + |
| 83 | + |
| 84 | +### [`bootloader`](https://github.com/rust-osdev/bootloader) |
| 85 | +<span class="maintainers">Maintained by [@phil-opp](https://github.com/phil-opp) and [@Freax13](https://github.com/orgs/rust-osdev/people/Freax13)</span> |
| 86 | + |
| 87 | +The `bootloader` crate implements a custom Rust-based bootloader for easy loading of 64-bit ELF executables. This month, we merged the following fix: |
| 88 | + |
| 89 | +- [fix target-c-int-width for 0.9.x](https://github.com/rust-osdev/bootloader/pull/512) |
| 90 | +- [release v0.11.11](https://github.com/rust-osdev/bootloader/pull/510) |
| 91 | + |
| 92 | + |
| 93 | +### [`uefi-rs`](https://github.com/rust-osdev/uefi-rs) |
| 94 | +<span class="maintainers">Maintained by [@GabrielMajeri](https://github.com/GabrielMajeri), [@nicholasbishop](https://github.com/nicholasbishop), and [@phip1611](https://github.com/phip1611)</span> |
| 95 | + |
| 96 | +`uefi` makes it easy to develop Rust software that leverages safe, convenient, |
| 97 | +and performant abstractions for UEFI functionality. |
| 98 | + |
| 99 | +We merged the following PRs this month: |
| 100 | + |
| 101 | + |
| 102 | +- [Use size_of/align_of from prelude](https://github.com/rust-osdev/uefi-rs/pull/1734) |
| 103 | +- [Add (partial) safe protocol implementation for EFI_HII_DATABASE_PROTOCOL](https://github.com/rust-osdev/uefi-rs/pull/1719) |
| 104 | +- [xtask: improved error output for "wrong" repr](https://github.com/rust-osdev/uefi-rs/pull/1742) |
| 105 | +- [EFI Shell Interface: CurDir Functions](https://github.com/rust-osdev/uefi-rs/pull/1740) |
| 106 | +- [uefi-raw: move types to net module](https://github.com/rust-osdev/uefi-rs/pull/1747) |
| 107 | +- [uefi-raw: various small net improvements](https://github.com/rust-osdev/uefi-rs/pull/1748) |
| 108 | +- [uefi-raw: changelog update](https://github.com/rust-osdev/uefi-rs/pull/1751) |
| 109 | + |
| 110 | +<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1737) --> |
| 111 | +<!-- - [chore(deps): update crate-ci/typos action to v1.35.3](https://github.com/rust-osdev/uefi-rs/pull/1739) --> |
| 112 | +<!-- - [fix(deps): update rust crate proc-macro2 to v1.0.96](https://github.com/rust-osdev/uefi-rs/pull/1738) --> |
| 113 | +<!-- - [fix(deps): update rust crate clap to v4.5.44](https://github.com/rust-osdev/uefi-rs/pull/1736) --> |
| 114 | +<!-- - [chore(deps): update crate-ci/typos action to v1.35.4](https://github.com/rust-osdev/uefi-rs/pull/1743) --> |
| 115 | +<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1746) --> |
| 116 | +<!-- - [chore(deps): update actions/checkout action to v5](https://github.com/rust-osdev/uefi-rs/pull/1745) --> |
| 117 | +<!-- - [chore(deps): update crate-ci/typos action to v1.35.5](https://github.com/rust-osdev/uefi-rs/pull/1749) --> |
| 118 | +<!-- - [fix(deps): update rust crate cfg-if to v1.0.3](https://github.com/rust-osdev/uefi-rs/pull/1750) --> |
| 119 | +<!-- - [chore(deps): update rust crate bitflags to v2.9.3](https://github.com/rust-osdev/uefi-rs/pull/1744) --> |
| 120 | + |
| 121 | +Thanks to [@seijikun](https://github.com/seijikun) and [@RenTrieu](https://github.com/RenTrieu) for their contributions! |
| 122 | + |
| 123 | + |
| 124 | +### [`virtio-spec-rs`](https://github.com/rust-osdev/virtio-spec-rs) |
| 125 | +<span class="maintainers">Maintained by [@mkroening](https://github.com/mkroening)</span> |
| 126 | + |
| 127 | +The `virtio-spec` crate provides definitions from the Virtual I/O Device (VIRTIO) specification. |
| 128 | +This project aims to be unopinionated regarding actual VIRTIO drivers that are implemented on top of this crate. |
| 129 | + |
| 130 | +We merged the following PRs this month: |
| 131 | + |
| 132 | +- [fix(pci): capabilities are always little-endian](https://github.com/rust-osdev/virtio-spec-rs/pull/7) |
| 133 | +- [fix(pci): actually convert MMIO access to little endian](https://github.com/rust-osdev/virtio-spec-rs/pull/8) |
| 134 | +- [chore: release version 0.3.1](https://github.com/rust-osdev/virtio-spec-rs/pull/9) |
| 135 | + |
| 136 | +Thanks to [@Gelbpunkt](https://github.com/Gelbpunkt) for their contributions! |
| 137 | + |
| 138 | + |
| 139 | +### [`x86_64`](https://github.com/rust-osdev/x86_64) |
| 140 | +<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> |
| 141 | + |
| 142 | +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. |
| 143 | + |
| 144 | +We merged the following PRs this month: |
| 145 | + |
| 146 | +- [Bump actions/checkout from 4 to 5](https://github.com/rust-osdev/x86_64/pull/563) |
| 147 | +- [add PageFaultErrorCode::HLAT](https://github.com/rust-osdev/x86_64/pull/564) |
| 148 | + |
| 149 | + |
| 150 | +## Other Projects |
| 151 | + |
| 152 | +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. |
| 153 | + |
| 154 | +<!-- |
| 155 | + Please use the following template: |
| 156 | +
|
| 157 | + ### [`owner_name/repo_name`](https://github.com/rust-osdev/owner_name/repo_name) |
| 158 | + <span class="maintainers">(Section written by [@your_github_name](https://github.com/your_github_name))</span> |
| 159 | +
|
| 160 | + ...<<your project updates>>... |
| 161 | +--> |
| 162 | + |
| 163 | + |
| 164 | +<!-- <span class="gray">No projects updates were submitted this month.</span> --> |
| 165 | + |
| 166 | +### [`phil-opp/blog_os`](https://github.com/phil-opp/blog_os) |
| 167 | +<span class="maintainers">(Section written by [@phil-opp](https://github.com/phil-opp))</span> |
| 168 | + |
| 169 | +We merged the following changes to the [_Writing an OS in Rust_](https://os.phil-opp.com/) blog this month: |
| 170 | + |
| 171 | +- [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)) |
| 172 | +- [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)) |
| 173 | +- [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)) |
| 174 | +- [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)) |
| 175 | +- [Set `test=true` to enable `main.rs` testing again](https://github.com/phil-opp/blog_os/pull/1434) |
| 176 | +- [Update testing post to set `test = true` in Cargo.to](https://github.com/phil-opp/blog_os/pull/1435) |
| 177 | +- [Fix: `target-pointer-width` field now expects an integer](https://github.com/phil-opp/blog_os/pull/1436) |
| 178 | +- [Update blog for `target-pointer-width` change](https://github.com/phil-opp/blog_os/pull/1437) |
| 179 | + |
| 180 | + |
| 181 | +## Join Us? |
| 182 | + |
| 183 | +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). |
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