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+title = "This Month in Rust OSDev: June 2025"
+date = 2025-07-09
+
+[extra]
+month = "June 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 (June 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
+-->
+
+- [Munal OS: a fully graphical experimental OS with WASM-based application sandboxing](https://www.reddit.com/r/rust/comments/1l7av38/media_munal_os_a_fully_graphical_experimental_os/)
+- [SafaOS now has USB support and a working aarch64 port](https://www.reddit.com/r/rust/comments/1litijp/media_my_rust_os_safaos_now_has_usb_support_and_a/)
+- [R9: a reimplementation of the plan9 kernel in Rust](https://github.com/r9os/r9)
+- [This Month in Redox - June 2025](https://www.redox-os.org/news/this-month-250630/)
+- [Ratatui alpha with no-std support released](https://jslazak.com/are-we-embedded-yet-2/)
+    - crate for creating terminal user interfaces
+- [flat_rbtree: A fast, index-based Red-Black Tree with no heap allocations](https://github.com/matheus-git/flat_rbtree)
+
+### Linux-related
+
+- [Kernel Memory Safety: Mission Accomplished](https://asterinas.github.io/2025/06/04/kernel-memory-safety-mission-accomplished.html)
+- [How to write Rust in the kernel: part 2](https://lwn.net/SubscriberLink/1025232/fbb2d90d084368e3/)
+- [A Newbie's First Contribution to (Rust for) Linux](https://blog.buenzli.dev/rust-for-linux-first-contrib/)
+- [Writing a basic Linux device driver when you know nothing about Linux drivers or USB](https://crescentro.se/posts/writing-drivers/)
+
+## 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
+-->
+
+- [Stabilizing naked functions](https://blog.rust-lang.org/2025/07/03/stabilizing-naked-functions/)
+- [Add new Tier-3 targets: `loongarch32-unknown-none*`](https://github.com/rust-lang/rust/pull/142053)
+- [Allow storing `format_args!()` in a variable](https://github.com/rust-lang/rust/pull/140748)
+
+## `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>>
+-->
+
+### [`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:
+
+- [Updating Uefi Raw for EFI Shell Protocol](https://github.com/rust-osdev/uefi-rs/pull/1680)
+- [SNP Integration Test: Improve Clarity](https://github.com/rust-osdev/uefi-rs/pull/1621)
+- [ci: Temporarily pin to older nightly](https://github.com/rust-osdev/uefi-rs/pull/1689)
+- [fix typo `ctr16!` to `cstr16!`](https://github.com/rust-osdev/uefi-rs/pull/1686)
+- [xtask: Allow clippy::collapsible_if lint](https://github.com/rust-osdev/uefi-rs/pull/1694)
+- [uefi: Fix clippy::uninlined_format_args lint](https://github.com/rust-osdev/uefi-rs/pull/1693)
+- [test-runner: Fix clippy::uninlined_format_args lint](https://github.com/rust-osdev/uefi-rs/pull/1692)
+- [uefi: Fix clippy::unnecessary_unwrap lint](https://github.com/rust-osdev/uefi-rs/pull/1691)
+- [Fix mismatched_lifetime_syntaxes lint](https://github.com/rust-osdev/uefi-rs/pull/1690)
+- [uefi: Make PciIoAddress orderable and hashable](https://github.com/rust-osdev/uefi-rs/pull/1682)
+- [uefi: Fix io-align == 0 edgecase handling for ata & nvme](https://github.com/rust-osdev/uefi-rs/pull/1698)
+- [uefi-raw: Add HII_CONFIG_ACCESS and CONFIG_KEYWORD_HANDLER protocol bindings](https://github.com/rust-osdev/uefi-rs/pull/1683)
+- [doc/uefi: improve Protocol documentation](https://github.com/rust-osdev/uefi-rs/pull/1612)
+- [Fix lints/tests on nightly and unpin the CI nightly version](https://github.com/rust-osdev/uefi-rs/pull/1703)
+- [uefi-services: prepare v0.26.0 release to accelerate migration/deprecation](https://github.com/rust-osdev/uefi-rs/pull/1709)
+- [uefi-services: remove again](https://github.com/rust-osdev/uefi-rs/pull/1712)
+- [uefi/test-runner: Remove `crate::` and `uefi::` prefix from Status](https://github.com/rust-osdev/uefi-rs/pull/1714)
+
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1681) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.33.1](https://github.com/rust-osdev/uefi-rs/pull/1696) -->
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1697) -->
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1702) -->
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1707) -->
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1715) -->
+
+Thanks to [@seijikun](https://github.com/seijikun), [@nicholasbishop](https://github.com/nicholasbishop), [@phip1611](https://github.com/phip1611), [@renovate[bot]](https://github.com/apps/renovate), [@RenTrieu](https://github.com/RenTrieu), and [@diamant3](https://github.com/diamant3) for their contributions!
+
+
+### [`ovmf-prebuilt`](https://github.com/rust-osdev/ovmf-prebuilt)
+<span class="maintainers">Maintained by [@nicholasbishop](https://github.com/nicholasbishop) and [@phil-opp](https://github.com/phil-opp)</span>
+
+The `ovmf-prebuilt` project provides pre-built [edk2](https://github.com/tianocore/edk2) releases to make it easier to set up OVMF. We merged the following improvement this month:
+
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/ovmf-prebuilt/pull/181)
+- [chore(deps): lock file maintenance](https://github.com/rust-osdev/ovmf-prebuilt/pull/182)
+- [chore(deps): lock file maintenance](https://github.com/rust-osdev/ovmf-prebuilt/pull/183)
+- [chore(deps): lock file maintenance](https://github.com/rust-osdev/ovmf-prebuilt/pull/185) -->
+- [Split Source constants into a new file](https://github.com/rust-osdev/ovmf-prebuilt/pull/186)
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/ovmf-prebuilt/pull/187) -->
+
+
+### [`multiboot2`](https://github.com/rust-osdev/multiboot2)
+<span class="maintainers">Maintained by [@phip1611](https://github.com/phip1611)</span>
+
+_Convenient and safe parsing of Multiboot2 Boot Information (MBI) structures and
+the contained information tags. Usable in no_std environments, such as a kernel.
+An optional builder feature also allows the construction of the corresponding
+structures._
+
+We merged the following PRs this month:
+
+- [update workspace, Rust edition 2024, fixes](https://github.com/rust-osdev/multiboot2/pull/267)
+<!-- - [build(deps): bump crate-ci/typos from 1.31.2 to 1.32.0](https://github.com/rust-osdev/multiboot2/pull/269)
+- [build(deps): bump uefi-raw from 0.8.0 to 0.11.0](https://github.com/rust-osdev/multiboot2/pull/268) -->
+
+
+### [`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:
+
+- [ci: run Miri](https://github.com/rust-osdev/virtio-spec-rs/pull/4)
+<!-- - [build(deps): upgrade dependencies](https://github.com/rust-osdev/virtio-spec-rs/pull/3) -->
+- [fix(net): make HdrGso an enum instead of a flag](https://github.com/rust-osdev/virtio-spec-rs/pull/2)
+- [add support of console](https://github.com/rust-osdev/virtio-spec-rs/pull/1)
+- [chore: release version 0.3.0](https://github.com/rust-osdev/virtio-spec-rs/pull/5)
+
+Thanks to [@stlankes](https://github.com/stlankes) for their contribution!
+
+
+### [`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 improvements:
+
+- [Document physical memory mapping size](https://github.com/rust-osdev/bootloader/pull/506)
+
+Thanks to [@aaronzper](https://github.com/aaronzper) for their contribution!
+
+
+### [`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:
+
+- [Add "FMask" alias for SFMask.](https://github.com/rust-osdev/x86_64/pull/552)
+
+Thanks to [@ChocolateLoverRaj](https://github.com/ChocolateLoverRaj) for their contribution!
+
+
+## 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>
+
+## 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).