Merge pull request #210 from rust-osdev/next

This Month in Rust OSDev: April 2024

Author: phil-opp

content/this-month/2024-03/index.md

@@ -230,4 +230,4 @@ In this section, we describe updates to Rust OS projects that are not directly r
 
 ## 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 [gitter channel](https://gitter.im/rust-osdev/Lobby).
+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).

content/this-month/2024-04/index.md

@@ -0,0 +1,250 @@
++++
+title = "This Month in Rust OSDev: April 2024"
+date = 2024-05-03
+
+[extra]
+month = "April 2024"
+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 (April 2024)" 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
+-->
+
+- [Testing Virtualization Stacks by Utilizing Mini Operating System Kernels](https://cyberus-technology.de/articles/testing-virtualization-stacks-utilizing-mini-kernels) \
+  Multiple mini OS kernels help Cyberus Technology to investigate issues 
+  related to complicated problems in virtualization stacks, such as never
+  delivered interrupts. Although the Cyberus Guest Tests are written in C++,
+  they help to find issues and problems in Cloud-Hypervisor, 
+  **a VMM written in Rust**. For better debugging capabilities of the Guest
+  Tests, Cyberus Technology [upstreamed support for the Debug Console](https://github.com/cloud-hypervisor/cloud-hypervisor/pull/6012)
+  to Cloud Hypervisor, which is present since `v38`. The [source code of the Guest Tests is on GitHub](https://github.com/cyberus-technology/guest-tests).
+- [Redox OS - April 2024 Report](https://redox-os.org/news/this-month-240430/)
+- [Giving Rust a chance for in-kernel codecs](https://lwn.net/SubscriberLink/970565/ac5ffc2e9ad20f1e/)
+- Video: [From C to Rust: Bringing Rust Abstractions to Embedded Linux](https://www.youtube.com/watch?v=hmQr4fq6sH0)
+- The Embedded Rustacean [Issue #17](https://www.theembeddedrustacean.com/p/the-embedded-rustacean-issue-17) and [Issue #18](https://www.theembeddedrustacean.com/p/the-embedded-rustacean-issue-18)
+- [Rust-Written LAVD Kernel Scheduler Shows Promising Results For Linux Gaming](https://www.phoronix.com/news/LAVD-Scheduler-Linux-Gaming)
+- Video: [LinuxFest Northwest 2024: Meet COSMIC DE](https://www.youtube.com/watch?v=JHLfsWhDvz0)
+- New [`offset-allocator`](https://github.com/pcwalton/offset-allocator) crate, providing a fast, simple, hard real time allocator
+  - not `no_std` yet, but should be easy to port (only requires a `Vec`-like type)
+- [Making an RISC-V OS (Part 3): Managing free memory](https://traxys.me/riscv_os_buddy.html)
+- [Asterinas](https://asterinas.github.io/): a secure, fast, and general-purpose OS kernel written in Rust and compatible with Linux
+
+## 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
+-->
+
+- [`f16` and `f128` step 4: basic library support](https://github.com/rust-lang/rust/pull/122470)
+- [Stabilise `inline_const`](https://github.com/rust-lang/rust/pull/104087)
+- [Introduce perma-unstable `wasm-c-abi` flag](https://github.com/rust-lang/rust/pull/117919)
+- [Stabilize `(const_)slice_ptr_len` and `(const_)slice_ptr_is_empty_nonnull`](https://github.com/rust-lang/rust/pull/123868)
+- [Add `aarch64-apple-visionos` and `aarch64-apple-visionos-sim` tier 3 targets](https://github.com/rust-lang/rust/pull/121419)
+
+## `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>>
+-->
+
+### [`volatile`](https://github.com/rust-osdev/volatile)
+<span class="maintainers">Maintained by [@phil-opp](https://github.com/phil-opp)</span>
+
+The `volatile` crate provides a safe wrapper type for implementing volatile read and write operations. This is useful for accessing memory regions that have side-effects, such as memory-mapped hardware registers.
+
+We merged the following PRs this month:
+
+- [Add `VolatileRef::restrict` and `VolatilePtr::restrict`](https://github.com/rust-osdev/volatile/pull/47)
+- [Add `VolatileRef::borrow` and `VolatileRef::borrow_mut`](https://github.com/rust-osdev/volatile/pull/46)
+- [docs: remove unused `NonNull` imports](https://github.com/rust-osdev/volatile/pull/48)
+- [Add support for nested `map_field` operations](https://github.com/rust-osdev/volatile/pull/50)
+- [Add `#[derive(VolatileFieldAccess)]` for easy, access-limited field-based access to structs](https://github.com/rust-osdev/volatile/pull/49)
+- [fix(Cargo.toml): add categories](https://github.com/rust-osdev/volatile/pull/52)
+- [ci: migrate away from unmaintained actions](https://github.com/rust-osdev/volatile/pull/51)
+- [Enable all features and `doc_auto_cfg` on docs.rs](https://github.com/rust-osdev/volatile/pull/55)
+- [Release v0.5.3](https://github.com/rust-osdev/volatile/pull/53)
+- [Fix warnings and deny warnings in CI](https://github.com/rust-osdev/volatile/pull/56)
+- [fix(macro): support `#[repr(align(N))]`](https://github.com/rust-osdev/volatile/pull/57)
+- [fix(access): properly seal access traits](https://github.com/rust-osdev/volatile/pull/59)
+- [Release v0.5.4](https://github.com/rust-osdev/volatile/pull/62)
+- [Add a semver checks CI job](https://github.com/rust-osdev/volatile/pull/63)
+- [feat: introduce `RestrictAccess<To>` and generalize `restrict` to all access types](https://github.com/rust-osdev/volatile/pull/60)
+- [feat: implement derive macro for all access types](https://github.com/rust-osdev/volatile/pull/61)
+- [fix: add `#[must_use]` to volatile types, `read`, and `as_raw_ptr`](https://github.com/rust-osdev/volatile/pull/58)
+
+Thanks to [@mkroening](https://github.com/mkroening) for their contributions!
+
+### [`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>
+
+The `uefi-rs` crate provides safe and performant wrappers for [UEFI](https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface), the successor to the BIOS. We merged the following PRs this month:
+
+- [Add timestamp protocol](https://github.com/rust-osdev/uefi-rs/pull/1109)
+- [Replace some `as` casts](https://github.com/rust-osdev/uefi-rs/pull/1108)
+- [uefi: Add UnalignedSlice::as_ptr](https://github.com/rust-osdev/uefi-rs/pull/1117)
+- [Add device path text protocols to uefi-raw and re-use in uefi](https://github.com/rust-osdev/uefi-rs/pull/1118)
+- [uefi-services: Fix warning with `--no-default-features`](https://github.com/rust-osdev/uefi-rs/pull/1119)
+- [uefi: Add more derives for Handle and Event](https://github.com/rust-osdev/uefi-rs/pull/1120)
+- [misc: nix/niv updates and typo updates](https://github.com/rust-osdev/uefi-rs/pull/1125)
+- [doc: update fs documentation](https://github.com/rust-osdev/uefi-rs/pull/1126)
+- [doc: update README](https://github.com/rust-osdev/uefi-rs/pull/1127)
+- [Deprecate `uefi-services` and add `uefi::helpers` as replacement](https://github.com/rust-osdev/uefi-rs/pull/1128)
+- [Fix some warnings, and ensure CI catches them in the future](https://github.com/rust-osdev/uefi-rs/pull/1134)
+- [release: uefi-raw-0.5.2, uefi-0.28.0, uefi-services-0.25.0](https://github.com/rust-osdev/uefi-rs/pull/1140)
+- [build(deps): bump rustls from 0.22.2 to 0.22.4](https://github.com/rust-osdev/uefi-rs/pull/1142)
+- [Nuke uefi services from repository](https://github.com/rust-osdev/uefi-rs/pull/1141)
+- [[Misc] Add ResetNotification protocol. Add Misc to uefi-test-runner.](https://github.com/rust-osdev/uefi-rs/pull/1116)
+- [Minor import/export cleanups](https://github.com/rust-osdev/uefi-rs/pull/1144)
+- [uefi: Drop the panic-on-logger-errors feature](https://github.com/rust-osdev/uefi-rs/pull/1143)
+- [Replace `cstr16!` with a declarative macro](https://github.com/rust-osdev/uefi-rs/pull/1145)
+- [Replace `cstr8!` with a declarative macro](https://github.com/rust-osdev/uefi-rs/pull/1151)
+- [Remove xtask from MSRV build and update clap](https://github.com/rust-osdev/uefi-rs/pull/1152)
+
+<!-- - [fix(deps): update rust crate serde_json to v1.0.115](https://github.com/rust-osdev/uefi-rs/pull/1111) -->
+<!-- - [chore(deps): update rust crate trybuild to v1.0.91](https://github.com/rust-osdev/uefi-rs/pull/1110) -->
+<!-- - [fix(deps): update rust crate syn to v2.0.57](https://github.com/rust-osdev/uefi-rs/pull/1112) -->
+<!-- - [chore(deps): update rust crate bitflags to v2.5.0](https://github.com/rust-osdev/uefi-rs/pull/1113) -->
+<!-- - [fix(deps): update rust crate ucs2 to v0.3.3](https://github.com/rust-osdev/uefi-rs/pull/1122) -->
+<!-- - [fix(deps): update rust crate syn to v2.0.58](https://github.com/rust-osdev/uefi-rs/pull/1121) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.20.8](https://github.com/rust-osdev/uefi-rs/pull/1132) -->
+<!-- - [fix(deps): update rust crate anyhow to v1.0.82](https://github.com/rust-osdev/uefi-rs/pull/1133) -->
+<!-- - [fix(deps): update rust crate quote to v1.0.36](https://github.com/rust-osdev/uefi-rs/pull/1136) -->
+<!-- - [fix(deps): update rust crate proc-macro2 to v1.0.80](https://github.com/rust-osdev/uefi-rs/pull/1135) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.20.9](https://github.com/rust-osdev/uefi-rs/pull/1146) -->
+<!-- - [fix(deps): update rust crate proc-macro2 to v1.0.81](https://github.com/rust-osdev/uefi-rs/pull/1147) -->
+<!-- - [fix(deps): update rust crate syn to v2.0.60](https://github.com/rust-osdev/uefi-rs/pull/1149) -->
+<!-- - [fix(deps): update rust crate serde_json to v1.0.116](https://github.com/rust-osdev/uefi-rs/pull/1148) -->
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1150) -->
+<!-- - [chore(deps): update crate-ci/typos action to v1.20.10](https://github.com/rust-osdev/uefi-rs/pull/1153) -->
+<!-- - [fix(deps): update rust crate ureq to v2.9.7](https://github.com/rust-osdev/uefi-rs/pull/1154) -->
+
+Thanks to [@sky5454](https://github.com/sky5454) for their contributions!
+
+### [`ucs2-rs`](https://github.com/rust-osdev/ucs2-rs)
+<span class="maintainers">Maintained by [@GabrielMajeri](https://github.com/GabrielMajeri), [@nicholasbishop](https://github.com/nicholasbishop), and [@phip1611](https://github.com/phip1611)</span>
+
+- [Add `ucs2_cstr!` macro](https://github.com/rust-osdev/ucs2-rs/pull/21)
+- [release: 0.3.3](https://github.com/rust-osdev/ucs2-rs/pull/22)
+
+
+### [`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:
+
+- [AML: Allow Field in ToInteger (rebased)](https://github.com/rust-osdev/acpi/pull/213)
+
+Thanks to [@rw-vanc](https://github.com/rw-vanc) 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:
+
+- [docs: fix and detect warnings](https://github.com/rust-osdev/x86_64/pull/475)
+- [docs: add aliases for `in{,b,w,l}` and `out{,b,w,l}`](https://github.com/rust-osdev/x86_64/pull/474)
+- [ci: migrate away from unmaintained actions](https://github.com/rust-osdev/x86_64/pull/478)
+- [chore: migrate from legacy `rust-toolchain` to `rust-toolchain.toml`](https://github.com/rust-osdev/x86_64/pull/479)
+- [test: replace `x86_64-bare-metal.json` with `x86_64-unknown-none`](https://github.com/rust-osdev/x86_64/pull/477)
+- [fix and detect warnings](https://github.com/rust-osdev/x86_64/pull/476)
+- [CI: Set `-Crelocation-model=static` in `RUSTFLAGS` for bootloader test job](https://github.com/rust-osdev/x86_64/pull/480)
+- [silence warning about cast](https://github.com/rust-osdev/x86_64/pull/482)
+- [Only enable instructions on `x86_64`](https://github.com/rust-osdev/x86_64/pull/483)
+
+Thanks to [@mkroening](https://github.com/mkroening) for their contributions!
+
+
+### [`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:
+
+- [CI: Fix macOS errors](https://github.com/rust-osdev/bootloader/pull/435)
+- [[v0.9] Silence dead code warning](https://github.com/rust-osdev/bootloader/pull/436)
+- [[v0.9] Rename `.cargo/config` to `.cargo/config.toml`](https://github.com/rust-osdev/bootloader/pull/437)
+
+
+### [`multiboot2`](https://github.com/rust-osdev/multiboot2)
+<span class="maintainers">Maintained by [@phip1611](https://github.com/phip1611)</span>
+
+The `multiboot2` crate provides abstraction types for the multiboot information structure (MBI) of multiboot2 bootloaders. We merged the following changes this month:
+
+- [misc: various improvements](https://github.com/rust-osdev/multiboot2/pull/208)
+<!-- - [build(deps): bump crate-ci/typos from 1.16.26 to 1.19.0](https://github.com/rust-osdev/multiboot2/pull/206)
+- [build(deps): bump cachix/install-nix-action from 24 to 26](https://github.com/rust-osdev/multiboot2/pull/207)
+- [build(deps): bump actions/cache from 3 to 4](https://github.com/rust-osdev/multiboot2/pull/200) -->
+
+
+## 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>>...
+-->
+
+### [RatCornu/efs](https://codeberg.org/RatCornu/efs)
+
+[`efs`](https://crates.io/efs) is a recently published `no-std` library which provides an OS and architecture independent implementation of some UNIX filesystems in Rust.
+
+Currently only the [ext2 filesystem](https://fr.wikipedia.org/wiki/Ext2) is directly implemented, but I will soonly work on other filesystems!
+
+It's still young so it may contain bugs, but it's hugely tested so that it does not happen.
+
+Some of the features provided :
+
+* `no_std` support (enabled by default)
+* General interface for UNIX files and filesystems
+* `read/write` regular files
+* retrieve, add and remove directory entries directly from a path and a current working directory.
+
+I hope you will find this useful! If you have any remark, idea or issue, do not hesitate to submit an issue!
+
+## 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).