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prevent VM exits due to the pause instructions

Improve Hugepage detection and parameters

@jschwe Do I merged the PR correctly?

Split parsing and filtering into separate functions, so that they can be tested separately.
Add tests to validate parsing functions.

This commit adds the --affinity parameter which takes a cpulist as an argument
uhyve tries to bind the vCPU threads to the physical CPUs specified.

This is an initial commit with some open issues still to be addressed

Bumps [byteorder](https://github.com/BurntSushi/byteorder) from 1.3.4 to 1.4.2.
- [Release notes](https://github.com/BurntSushi/byteorder/releases)
- [Changelog](https://github.com/BurntSushi/byteorder/blob/master/CHANGELOG.md)
- [Commits](https://github.com/BurntSushi/byteorder/compare/1.3.4...1.4.2

)
Signed-off-by: dependabot[bot] <support@github.com>

Bumps [libc](https://github.com/rust-lang/libc) from 0.2.81 to 0.2.82.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.81...0.2.82

)
Signed-off-by: dependabot[bot] <support@github.com>

Bumps [x86](https://github.com/gz/rust-x86) from 0.34.0 to 0.35.0.
- [Release notes](https://github.com/gz/rust-x86/releases)
- [Commits](https://github.com/gz/rust-x86/compare/0.34.0...0.35.0

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Bumps [log](https://github.com/rust-lang/log) from 0.4.11 to 0.4.13.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
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I have no idea if this can be safely assumed, but
this was the situation before this PR too, so no changes there.

The parameter is the value belonging to the key passed to parse_bool function.
Renaming to make this clear.
Previously I used name because I initially copy pasted the
function signature.

Use to_ascii_lowercase to convert the value to lowercase before matching.
This simplifies the match and also catches TRUE and other variants

Fix formatting errors caused by my previous commits by running rustfmt

This commit tests if `/sys/kernel/mm/transparent_hugepage/enabled`  is present
and parses the contents.
If (transparent) hugepages are supported by the kernel, then they are
enabled by default.
If /sys/kernel/mm/transparent_hugepage/enabled is not present
the hugepages support is assumed to be not present.

I have no idea how the mac kernel works or exposes information, so a follow up commit
is probably needed to add macos support.

Simply set default to true and remove the negation.
This way hugepages are still enabled by default,
and HERMIT_HUGEPAGE=True delivers the expected result of enabling
HUGEPAGES . Previously the negation inverted the selection.

Adding --disable-hugepages previously set hugepages to true.
To prevent future errors the variable name is switched from HUGEPAGE to
DISABLE_HUGEPAGE to prevent future misunderstandings

parse_bool now additionally supports the  Strings such as "True",
"true", "False", "false", and Yes, no and interprets these as boolean options.
The existing numeric interpretation is also still available.

46: Bump actions/checkout from v1 to v2.3.4 r=jbreitbart a=dependabot[bot]

Bumps [actions/checkout](https://github.com/actions/checkout) from v1 to v2.3.4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/releases">actions/checkout's releases</a>.</em></p>
<blockquote>
<h2>v2.3.4</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/379">Add missing <code>await</code>s</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/360">Swap to Environment Files</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>v2.3.1</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/284">Fix default branch resolution for .wiki and when using SSH</a></li>
</ul>
<h2>v2.3.0</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/278">Fallback to the default branch</a></li>
</ul>
<h2>v2.2.0</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/258">Fetch all history for all tags and branches when fetch-depth=0</a></li>
</ul>
<h2>v2.1.1</h2>
<ul>
<li>Changes to support GHES (<a href="https://github-redirect.dependabot.com/actions/checkout/pull/236">here</a> and <a href="https://github-redirect.dependabot.com/actions/checkout/pull/248">here</a>)</li>
</ul>
<h2>v2.1.0</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/191">Group output</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/199">Changes to support GHES alpha release</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/184">Persist core.sshCommand for submodules</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/163">Add support ssh</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/179">Convert submodule SSH URL to HTTPS, when not using SSH</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/157">Add submodule support</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/144">Follow proxy settings</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/141">Fix ref for pr closed event when a pr is merged</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/128">Fix issue checking detached when git less than 2.22</a></li>
</ul>
<h2>v2.0.0</h2>
<ul>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/108">Do not pass cred on command line</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/107">Add input persist-credentials</a></li>
<li><a href="https://github-redirect.dependabot.com/actions/checkout/pull/104">Fallback to REST API to download repo</a></li>
</ul>
<h2>v2 (beta)</h2>
<ul>
<li>Improved fetch performance
<ul>
<li>The default behavior now fetches only the SHA being checked-out</li>
</ul>
</li>
<li>Script authenticated git commands
<ul>
<li>Persists <code>with.token</code> in the local git config</li>
<li>Enables your scripts to run authenticated git commands</li>
<li>Post-job cleanup removes the token</li>
<li>Coming soon: Opt out by setting <code>with.persist-credentials</code> to <code>false</code></li>
</ul>
</li>
<li>Creates a local branch
<ul>
<li>No longer detached HEAD when checking out a branch</li>
<li>A local branch is created with the corresponding upstream branch set</li>
</ul>
</li>
<li>Improved layout</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/checkout/commit/5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f"><code>5a4ac90</code></a> Add missing <code>await</code>s (<a href="https://github-redirect.dependabot.com/actions/checkout/issues/379">#379</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/c952173edf28a2bd22e1a4926590c1ac39630461"><code>c952173</code></a> Swap to Environment Files (<a href="https://github-redirect.dependabot.com/actions/checkout/issues/360">#360</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/a81bbbf8298c0fa03ea29cdc473d45769f953675"><code>a81bbbf</code></a> Remove unneeded commit information from build logs (<a href="https://github-redirect.dependabot.com/actions/checkout/issues/345">#345</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/21dc310f1948a06cc989491cb1b4a86777f22918"><code>21dc310</code></a> Add <code>Licensed</code> To Help Verify Prod Licenses (<a href="https://github-redirect.dependabot.com/actions/checkout/issues/326">#326</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/be6c44d969b1b004a9e0f7853e9cc9977ea0f7f0"><code>be6c44d</code></a> Revert &quot;Delete licenses.txt&quot;</li>
<li><a href="https://github.com/actions/checkout/commit/dac8cc78a1c612c854c383833b39e5a3f357b1f5"><code>dac8cc7</code></a> Delete licenses.txt</li>
<li><a href="https://github.com/actions/checkout/commit/2036a08e25fa78bbd946711a407b529a0a1204bf"><code>2036a08</code></a> Add Third Party License Information to Dist Files (<a href="https://github-redirect.dependabot.com/actions/checkout/issues/320">#320</a>)</li>
<li><a href="https://github.com/actions/checkout/commit/592cf69a223b04e75ddf345919130b91010eb2a6"><code>592cf69</code></a> Update README.md</li>
<li><a href="https://github.com/actions/checkout/commit/a4b69b48862e969425d8dc115dcb965f288ea29b"><code>a4b69b4</code></a> Update README.md</li>
<li><a href="https://github.com/actions/checkout/commit/1433f62caac9c18949f9a498f6f28c05388ea443"><code>1433f62</code></a> update default branch (<a href="https://github-redirect.dependabot.com/actions/checkout/issues/305">#305</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/actions/checkout/compare/v1...5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f

">compare view</a></li>
</ul>
</details>
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [actions/checkout](https://github.com/actions/checkout) from v1 to v2.3.4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v1...5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f

)
Signed-off-by: dependabot[bot] <support@github.com>

45: Enabled dependabot for Cargo and Github Actions r=jbreitbart a=jbreitbart
Co-authored-by: Jens Breitbart <jbreitbart@gmail.com>

44: Fixed 3 clippy warnings + updated dependencies  r=jbreitbart a=jbreitbart

I came across deps.rs and saw that it lists outdated packages for uhyve: https://deps.rs/crate/uhyve/0.0.24

Co-authored-by: Jens Breitbart <jbreitbart@gmail.com>

Updating nom results in compile error with the gdb parser and I am not
sure how to test it, so I am not trying to fix these.

42: improve error message r=jbreitbart a=stlankes

PR to solve issuer hermitcore/rusty-hermit#90
Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

39: add support of non-relocatable binaries r=stlankes a=stlankes

Currently, C-based applications (see [hermit-playground](https://github.com/hermitcore/hermit-playground)

) are not relocatable. Consequently, the loader has to support relocatable and non-relocatable applications.
Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>