uhyve doesn't support a common IO-APIC. Consequently, libhermit
should not initialize the IO-APIC

724: add check if the idle task has to give up the processor r=stlankes a=stlankes

- simplifies the run function of the scheduler
- avoids unneeded calls of the function `schedule`

Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

- only the idle task should call `run`
- consequently, the idle task check can be removed

723: remove deprecated functions and use hermit-dtb from crates.io r=stlankes a=stlankes



Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

719: Add basic docs for timer and semaphore syscalls r=stlankes a=nathanwhyte

Helping with issue #353

Added _(very)_ basic documentation to syscalls in [`timer.rs`](https://github.com/hermitcore/libhermit-rs/blob/master/src/syscalls/timer.rs) and [`semaphore.rs`](https://github.com/hermitcore/libhermit-rs/blob/master/src/syscalls/semaphore.rs

)

I used Linux man pages as a reference when writing these.

Co-authored-by: Nathan Whyte <nathanwhyte35@gmail.com>

721: build(deps): bump bitflags from 2.1.0 to 2.2.1 r=mkroening a=dependabot[bot]

Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.1.0 to 2.2.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/bitflags/bitflags/releases">bitflags's releases</a>.</em></p>
<blockquote>
<h2>2.2.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Refactor attribute filtering to apply per-flag by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/345">bitflags/bitflags#345</a></li>
<li>Prepare for 2.2.1 release by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/346">bitflags/bitflags#346</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/bitflags/bitflags/compare/2.2.0...2.2.1">https://github.com/bitflags/bitflags/compare/2.2.0...2.2.1</a></p>
<h2>2.2.0 (yanked)</h2>
<h2>What's Changed</h2>
<ul>
<li>Create SECURITY.md by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/338">bitflags/bitflags#338</a></li>
<li>add docs to describe the behavior of multi-bit flags by <a href="https://github.com/nicholasbishop"><code>`@​nicholasbishop</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/340">bitflags/bitflags#340</a></li>
<li>Add support for bytemuck by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/336">bitflags/bitflags#336</a></li>
<li>Add a top-level macro for filtering attributes by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/341">bitflags/bitflags#341</a></li>
<li>Prepare for 2.2.0 release by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/342">bitflags/bitflags#342</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/nicholasbishop"><code>`@​nicholasbishop</code></a>` made their first contribution in <a href="https://redirect.github.com/bitflags/bitflags/pull/340">bitflags/bitflags#340</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/bitflags/bitflags/compare/2.1.0...2.2.0">https://github.com/bitflags/bitflags/compare/2.1.0...2.2.0</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md">bitflags's changelog</a>.</em></p>
<blockquote>
<h1>2.2.1</h1>
<h2>What's Changed</h2>
<ul>
<li>Refactor attribute filtering to apply per-flag by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/345">bitflags/bitflags#345</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/bitflags/bitflags/compare/2.2.0...2.2.1">https://github.com/bitflags/bitflags/compare/2.2.0...2.2.1</a></p>
<h1>2.2.0</h1>
<h2>What's Changed</h2>
<ul>
<li>Create SECURITY.md by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/338">bitflags/bitflags#338</a></li>
<li>add docs to describe the behavior of multi-bit flags by <a href="https://github.com/nicholasbishop"><code>`@​nicholasbishop</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/340">bitflags/bitflags#340</a></li>
<li>Add support for bytemuck by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/336">bitflags/bitflags#336</a></li>
<li>Add a top-level macro for filtering attributes by <a href="https://github.com/KodrAus"><code>`@​KodrAus</code></a>` in <a href="https://redirect.github.com/bitflags/bitflags/pull/341">bitflags/bitflags#341</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/nicholasbishop"><code>`@​nicholasbishop</code></a>` made their first contribution in <a href="https://redirect.github.com/bitflags/bitflags/pull/340">bitflags/bitflags#340</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/bitflags/bitflags/compare/2.1.0...2.2.0">https://github.com/bitflags/bitflags/compare/2.1.0...2.2.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/bitflags/bitflags/commit/0c318c0d77ed63ad4ee9bfdf1d2c486993b18b37"><code>0c318c0</code></a> Merge pull request <a href="https://redirect.github.com/bitflags/bitflags/issues/346">#346</a> from KodrAus/cargo/2.2.1</li>
<li><a href="https://github.com/bitflags/bitflags/commit/a51c0532865ccd26de1a55d212ba90304199c463"><code>a51c053</code></a> prepare for 2.2.1 release</li>
<li><a href="https://github.com/bitflags/bitflags/commit/638707f0f0a38499dbc4cfdd7ef10d8106647309"><code>638707f</code></a> Merge pull request <a href="https://redirect.github.com/bitflags/bitflags/issues/345">#345</a> from KodrAus/fix/recursion</li>
<li><a href="https://github.com/bitflags/bitflags/commit/f3f3b6a7b00f79e05601afe07fe806d36fddd846"><code>f3f3b6a</code></a> add docs to example generated flags</li>
<li><a href="https://github.com/bitflags/bitflags/commit/588d13298ea5ba0ab37c57c947e0a47fe5335c8a"><code>588d132</code></a> refactor attribute filtering to apply per-flag</li>
<li><a href="https://github.com/bitflags/bitflags/commit/cbcafa710fc31172511e62efa06ad9eb214e4734"><code>cbcafa7</code></a> Merge pull request <a href="https://redirect.github.com/bitflags/bitflags/issues/342">#342</a> from KodrAus/cargo/2.2.0</li>
<li><a href="https://github.com/bitflags/bitflags/commit/61df53a791cfdd681bc4adcea12796c0bdef1ca5"><code>61df53a</code></a> prepare for 2.2.0 release</li>
<li><a href="https://github.com/bitflags/bitflags/commit/780f456840a2c2755b574397b3297e213a1e8b9f"><code>780f456</code></a> Merge pull request <a href="https://redirect.github.com/bitflags/bitflags/issues/341">#341</a> from KodrAus/fix/doc-alias</li>
<li><a href="https://github.com/bitflags/bitflags/commit/405e7de8ee8d9fea1ecf67a7bd234a9bcf45c3b9"><code>405e7de</code></a> updates macro field names</li>
<li><a href="https://github.com/bitflags/bitflags/commit/561fe509b081b2bf4d71a279389a03b9c3207b01"><code>561fe50</code></a> add a top-level macro for filtering attributes</li>
<li>Additional commits viewable in <a href="https://github.com/bitflags/bitflags/compare/2.1.0...2.2.1">compare view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=bitflags&package-manager=cargo&previous-version=2.1.0&new-version=2.2.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores

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720: build(deps): bump dsaltares/fetch-gh-release-asset from 1.1.0 to 1.1.1 r=mkroening a=dependabot[bot]

Bumps [dsaltares/fetch-gh-release-asset](https://github.com/dsaltares/fetch-gh-release-asset) from 1.1.0 to 1.1.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/dsaltares/fetch-gh-release-asset/releases">dsaltares/fetch-gh-release-asset's releases</a>.</em></p>
<blockquote>
<h2>1.1.1</h2>
<h2>What's Changed</h2>
<ul>
<li>fix: 50 - actually default version to latest by <a href="https://github.com/dsaltares"><code>`@​dsaltares</code></a>` in <a href="https://redirect.github.com/dsaltares/fetch-gh-release-asset/pull/56">dsaltares/fetch-gh-release-asset#56</a></li>
<li>Bump json5 from 1.0.1 to 1.0.2 by <a href="https://github.com/dependabot"><code>`@​dependabot</code></a>` in <a href="https://redirect.github.com/dsaltares/fetch-gh-release-asset/pull/55">dsaltares/fetch-gh-release-asset#55</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/dependabot"><code>`@​dependabot</code></a>` made their first contribution in <a href="https://redirect.github.com/dsaltares/fetch-gh-release-asset/pull/55">dsaltares/fetch-gh-release-asset#55</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/dsaltares/fetch-gh-release-asset/compare/1.1.0...1.1.1">https://github.com/dsaltares/fetch-gh-release-asset/compare/1.1.0...1.1.1</a></p>
</blockquote>
</details>
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<summary>Commits</summary>
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<li><a href="https://github.com/dsaltares/fetch-gh-release-asset/commit/a40c8b4a0471f9ab81bdf73a010f74cc51476ad4"><code>a40c8b4</code></a> Bump json5 from 1.0.1 to 1.0.2 (<a href="https://redirect.github.com/dsaltares/fetch-gh-release-asset/issues/55">#55</a>)</li>
<li><a href="https://github.com/dsaltares/fetch-gh-release-asset/commit/5a71312bcb7a436e89a7dd26123cdbdd7b3df709"><code>5a71312</code></a> fix: 50 - actually default version to latest (<a href="https://redirect.github.com/dsaltares/fetch-gh-release-asset/issues/56">#56</a>)</li>
<li>See full diff in <a href="https://github.com/dsaltares/fetch-gh-release-asset/compare/1.1.0...1.1.1">compare view</a></li>
</ul>
</details>
<br />


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Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.1.0...2.2.1

)

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  dependency-type: direct:production
  update-type: version-update:semver-minor
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Bumps [dsaltares/fetch-gh-release-asset](https://github.com/dsaltares/fetch-gh-release-asset) from 1.1.0 to 1.1.1.
- [Release notes](https://github.com/dsaltares/fetch-gh-release-asset/releases)
- [Commits](https://github.com/dsaltares/fetch-gh-release-asset/compare/1.1.0...1.1.1

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  dependency-type: direct:production
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716: virtio-net: Replace AsSliceU8 trait with zerocopy::AsBytes. r=mkroening a=joannejchen

Changed VirtioNetHdr to derive from AsBytes instead of AsSliceU8 and changed related functions as necessary.


Co-authored-by: Joanne Chen <joannejc@cs.utexas.edu>

Changed VirtioNetHdr to derive from AsBytes instead of AsSliceU8 and
changed related functions as necessary. AsSliceU8 cannot be completely
removed yet because of lack of support for deriving AsBytes for
generics.

715: Replace use of internal syscalls r=mkroening a=nathanwhyte

Closes #676 

I found no internal uses of `__sys_realloc()` or `__sys_free()` anywhere.

I did find one reference to `__sys_shutdown()`:
https://github.com/hermitcore/libhermit-rs/blob/df7483de1b762c570f5d52e48fc396cdb739a12d/src/arch/x86_64/kernel/processor.rs#L832-L836

It doesn't redirect to any functions in [`lib.rs`](https://github.com/hermitcore/libhermit-rs/blob/master/src/lib.rs

) like `__sys_malloc()` does. Does it need to be replaced as well?

Co-authored-by: Nathan Whyte <nathanwhyte35@gmail.com>

709: Change alignment of virtiofs structs to be based on the first field. r=mkroening a=joannejchen

Alignment of the virtiofs struct was previously based on the alignment of the largest field in fuse_in_header/fuse_out_header. Switched to explicitly align on u32, the type of the first field in the header.

Fixes #691

Co-authored-by: joannejchen <chenjjoanne@gmail.com>

Alignment of the virtiofs struct was previously based on the alignment
of only the first field and size was not padded. Changed to explicitly use the maximum alignment of all of the fields and added assertions to ensure this manually-allocated layout matches the compiler-generated layout.

Fixes #691

Signed-off-by: joannejchen <chenjjoanne@gmail.com>

706: Implements PriorityTaskQueue with std's LinkedList rather than a custom linked list implementation r=mkroening a=michaelRichards99

Fixes https://github.com/hermitcore/libhermit-rs/issues/377

.

Co-authored-by: michael <michaelsrichards1999@gmail.com>

Use Iterator::position, extract task removal to a separate method, and correctly set priority bitmask to reflect empty lists.

705: Make CoreLocal repr(C) r=mkroening a=nathanwhyte

Addresses #686

Add the `repr(C)` layout specifier to the CoreLocal struct.

Co-authored-by: Nathan Whyte <nathanwhyte35@gmail.com>

711: disable kaniko cache r=stlankes a=stlankes



Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

708: add CI tests for the release version on aarch64 r=stlankes a=stlankes



Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

707: CI downloads loader for aarch64 r=stlankes a=stlankes

CI use the latest published loader for aarch64. An initrd is used to test the application.

Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>