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<table class="head">
<tr>
<td class="head-ltitle">ARMV8CRYPTO(4)</td>
<td class="head-vol">Device Drivers Manual (aarch64)</td>
<td class="head-rtitle">ARMV8CRYPTO(4)</td>
</tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">armv8crypto</code> —
<span class="Nd">driver for the AES accelerator on ARM CPUs</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp">To compile this driver into the kernel, place the following lines
in your kernel configuration file:</p>
<div class="Bd Pp Bd-indent"><code class="Cd">device crypto</code>
<br/>
<code class="Cd">device armv8crypto</code></div>
<p class="Pp">Alternatively, to load the driver as a module at boot time, place
the following line in <a class="Xr">loader.conf(5)</a>:</p>
<div class="Bd Pp Bd-indent Li">
<pre>armv8crypto_load="YES"</pre>
</div>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">Starting with the ARMv8 architecture ARM Limited has added
optional cryptography instructions to accelerate AES, SHA-1, SHA-2, and
finite field arithmetic.</p>
<p class="Pp">The processor capability is reported as AES in the Instruction Set
Attributes 0 line at boot. The <code class="Nm">armv8crypto</code> driver
does not attach on systems that lack the required CPU capability.</p>
<p class="Pp">The <code class="Nm">armv8crypto</code> driver registers itself to
accelerate AES operations for <a class="Xr">crypto(4)</a>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<p class="Pp"><a class="Xr">crypt(3)</a>, <a class="Xr">crypto(4)</a>,
<a class="Xr">intro(4)</a>, <a class="Xr">ipsec(4)</a>,
<a class="Xr">random(4)</a>, <a class="Xr">crypto(7)</a>,
<a class="Xr">crypto(9)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The <code class="Nm">armv8crypto</code> driver first appeared in
<span class="Ux">FreeBSD 11.0</span>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">The <code class="Nm">armv8crypto</code> driver was written by
<span class="An">Andrew Turner</span>
<<a class="Mt" href="mailto:andrew@FreeBSD.org">andrew@FreeBSD.org</a>>.</p>
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">July 29, 2020</td>
<td class="foot-os">FreeBSD 15.0</td>
</tr>
</table>
|
