docs/wiki/qemu-vexpress-(Qemu-with-vexpress-soc)/index.html


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<h1>qemu vexpress (Qemu with vexpress soc)</h1>
<p>This device is used to emulate an ARM Versatile Express for Cortex-A9.</p>
<p>Vexpress (Versatile Express) is the reference architecture from the ARM Foundation. It simulates the armv7 architecture and a lot of other hardware (like graphics hardware).</p>
<p>QEMU supports many other ARM architectures (see <code>qemu-system-arm -machine help</code>).</p>
<h3>Contributors</h3>
<ul>
<li>MartijnBraam</li>
<li>mmaret</li>
</ul>
<h3>What works</h3>
<ul>
<li>Compilation of kernel, system and initramfs</li>
<li>It boots but only if you specify a seperate <code>-dtb</code> flag, it doesn't use the embedded dtb</li>
<li>Storage</li>
<li>Network</li>
</ul>
<h3>What does not work</h3>
<ul>
<li>Keyboard and mouse</li>
</ul>
<h3>Starting qemu</h3>
<pre class="codehilite"><code class="language-bash">$ ./pmbootstrap.py install
$ ./pmbootstrap.py flasher export
$ cp ~/.local/var/pmbootstrap/chroot_rootfs_qemu-vexpress/usr/share/dtb/vexpress-v2p-ca9.dtb .
$ qemu-system-arm \
    -kernel vmlinuz-postmarketos \
    -initrd initramfs-postmarketos \
    -M vexpress-a9 \
    -m 1024 \
    -sd qemu-vexpress.img \
    -append &quot;console=ttyAMA0,38400n8 console=tty1 PMOS_NO_OUTPUT_REDIRECT&quot; \
    -dtb vexpress-v2p-ca9.dtb</code></pre>


<h3>Links</h3>
<ul>
<li>https://wiki.linaro.org/PeterMaydell/QemuVersatileExpress</li>
</ul>
<h3>Screenshot</h3>
<p><img alt="Qemu unlock screen" src="http://i.imgur.com/Hwq0ryI.png" />
<img alt="Weston" src="http://i.imgur.com/AWRDDQ1.png" /></p>

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