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<section id="mips-system-emulator">
<span id="id1"></span><h1>MIPS System emulator<a class="headerlink" href="#mips-system-emulator" title="Link to this heading"></a></h1>
<p>Four executables cover simulation of 32 and 64-bit MIPS systems in both
endian options, <code class="docutils literal notranslate"><span class="pre">qemu-system-mips</span></code>, <code class="docutils literal notranslate"><span class="pre">qemu-system-mipsel</span></code>
<code class="docutils literal notranslate"><span class="pre">qemu-system-mips64</span></code> and <code class="docutils literal notranslate"><span class="pre">qemu-system-mips64el</span></code>. Five different
machine types are emulated:</p>
<ul class="simple">
<li><p>The MIPS Malta prototype board &quot;malta&quot;</p></li>
<li><p>An ACER Pica &quot;pica61&quot;. This machine needs the 64-bit emulator.</p></li>
<li><p>MIPS emulator pseudo board &quot;mipssim&quot;</p></li>
<li><p>A MIPS Magnum R4000 machine &quot;magnum&quot;. This machine needs the
64-bit emulator.</p></li>
</ul>
<p>The Malta emulation supports the following devices:</p>
<ul class="simple">
<li><p>Core board with MIPS 24Kf CPU and Galileo system controller</p></li>
<li><p>PIIX4 PCI/USB/SMbus controller</p></li>
<li><p>The Multi-I/O chip’s serial device</p></li>
<li><p>PCI network cards (PCnet32 and others)</p></li>
<li><p>Malta FPGA serial device</p></li>
<li><p>Cirrus (default) or any other PCI VGA graphics card</p></li>
</ul>
<p>The Boston board emulation supports the following devices:</p>
<ul class="simple">
<li><p>Xilinx FPGA, which includes a PCIe root port and an UART</p></li>
<li><p>Intel EG20T PCH connects the I/O peripherals, but only the SATA bus
is emulated</p></li>
</ul>
<p>The ACER Pica emulation supports:</p>
<ul class="simple">
<li><p>MIPS R4000 CPU</p></li>
<li><p>PC-style IRQ and DMA controllers</p></li>
<li><p>PC Keyboard</p></li>
<li><p>IDE controller</p></li>
</ul>
<p>The MIPS Magnum R4000 emulation supports:</p>
<ul class="simple">
<li><p>MIPS R4000 CPU</p></li>
<li><p>PC-style IRQ controller</p></li>
<li><p>PC Keyboard</p></li>
<li><p>SCSI controller</p></li>
<li><p>G364 framebuffer</p></li>
</ul>
<p>The Fuloong 2E emulation supports:</p>
<ul class="simple">
<li><p>Loongson 2E CPU</p></li>
<li><p>Bonito64 system controller as North Bridge</p></li>
<li><p>VT82C686 chipset as South Bridge</p></li>
<li><p>RTL8139D as a network card chipset</p></li>
</ul>
<p>The Loongson-3 virtual platform emulation supports:</p>
<ul class="simple">
<li><p>Loongson 3A CPU</p></li>
<li><p>LIOINTC as interrupt controller</p></li>
<li><p>GPEX and virtio as peripheral devices</p></li>
<li><p>Both KVM and TCG supported</p></li>
</ul>
<p>The mipssim pseudo board emulation provides an environment similar to
what the proprietary MIPS emulator uses for running Linux. It supports:</p>
<ul class="simple">
<li><p>A range of MIPS CPUs, default is the 24Kf</p></li>
<li><p>PC style serial port</p></li>
<li><p>MIPSnet network emulation</p></li>
</ul>
<section id="supported-cpu-model-configurations-on-mips-hosts">
<h2>Supported CPU model configurations on MIPS hosts<a class="headerlink" href="#supported-cpu-model-configurations-on-mips-hosts" title="Link to this heading"></a></h2>
<p>QEMU supports variety of MIPS CPU models:</p>
<section id="supported-cpu-models-for-mips32-hosts">
<h3>Supported CPU models for MIPS32 hosts<a class="headerlink" href="#supported-cpu-models-for-mips32-hosts" title="Link to this heading"></a></h3>
<p>The following CPU models are supported for use on MIPS32 hosts.
Administrators / applications are recommended to use the CPU model that
matches the generation of the host CPUs in use. In a deployment with a
mixture of host CPU models between machines, if live migration
compatibility is required, use the newest CPU model that is compatible
across all desired hosts.</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">mips32r6-generic</span></code></dt><dd><p>MIPS32 Processor (Release 6, 2015)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">P5600</span></code></dt><dd><p>MIPS32 Processor (P5600, 2014)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">M14K</span></code>, <code class="docutils literal notranslate"><span class="pre">M14Kc</span></code></dt><dd><p>MIPS32 Processor (M14K, 2009)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">74Kf</span></code></dt><dd><p>MIPS32 Processor (74K, 2007)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">34Kf</span></code></dt><dd><p>MIPS32 Processor (34K, 2006)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">24Kc</span></code>, <code class="docutils literal notranslate"><span class="pre">24KEc</span></code>, <code class="docutils literal notranslate"><span class="pre">24Kf</span></code></dt><dd><p>MIPS32 Processor (24K, 2003)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">4Kc</span></code>, <code class="docutils literal notranslate"><span class="pre">4Km</span></code>, <code class="docutils literal notranslate"><span class="pre">4KEcR1</span></code>, <code class="docutils literal notranslate"><span class="pre">4KEmR1</span></code>, <code class="docutils literal notranslate"><span class="pre">4KEc</span></code>, <code class="docutils literal notranslate"><span class="pre">4KEm</span></code></dt><dd><p>MIPS32 Processor (4K, 1999)</p>
</dd>
</dl>
</section>
<section id="supported-cpu-models-for-mips64-hosts">
<h3>Supported CPU models for MIPS64 hosts<a class="headerlink" href="#supported-cpu-models-for-mips64-hosts" title="Link to this heading"></a></h3>
<p>The following CPU models are supported for use on MIPS64 hosts.
Administrators / applications are recommended to use the CPU model that
matches the generation of the host CPUs in use. In a deployment with a
mixture of host CPU models between machines, if live migration
compatibility is required, use the newest CPU model that is compatible
across all desired hosts.</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">I6400</span></code></dt><dd><p>MIPS64 Processor (Release 6, 2014)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">Loongson-2E</span></code></dt><dd><p>MIPS64 Processor (Loongson 2, 2006)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">Loongson-2F</span></code></dt><dd><p>MIPS64 Processor (Loongson 2, 2008)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">Loongson-3A1000</span></code></dt><dd><p>MIPS64 Processor (Loongson 3, 2010)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">Loongson-3A4000</span></code></dt><dd><p>MIPS64 Processor (Loongson 3, 2018)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">mips64dspr2</span></code></dt><dd><p>MIPS64 Processor (Release 2, 2006)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">MIPS64R2-generic</span></code>, <code class="docutils literal notranslate"><span class="pre">5KEc</span></code>, <code class="docutils literal notranslate"><span class="pre">5KEf</span></code></dt><dd><p>MIPS64 Processor (Release 2, 2002)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">20Kc</span></code></dt><dd><p>MIPS64 Processor (20K, 2000</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">5Kc</span></code>, <code class="docutils literal notranslate"><span class="pre">5Kf</span></code></dt><dd><p>MIPS64 Processor (5K, 1999)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">VR5432</span></code></dt><dd><p>MIPS64 Processor (VR, 1998)</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">R4000</span></code></dt><dd><p>MIPS64 Processor (MIPS III, 1991)</p>
</dd>
</dl>
</section>
<section id="supported-cpu-models-for-nanomips-hosts">
<h3>Supported CPU models for nanoMIPS hosts<a class="headerlink" href="#supported-cpu-models-for-nanomips-hosts" title="Link to this heading"></a></h3>
<p>The following CPU models are supported for use on nanoMIPS hosts.
Administrators / applications are recommended to use the CPU model that
matches the generation of the host CPUs in use. In a deployment with a
mixture of host CPU models between machines, if live migration
compatibility is required, use the newest CPU model that is compatible
across all desired hosts.</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">I7200</span></code></dt><dd><p>MIPS I7200 (nanoMIPS, 2018)</p>
</dd>
</dl>
</section>
<section id="preferred-cpu-models-for-mips-hosts">
<h3>Preferred CPU models for MIPS hosts<a class="headerlink" href="#preferred-cpu-models-for-mips-hosts" title="Link to this heading"></a></h3>
<p>The following CPU models are preferred for use on different MIPS hosts:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">MIPS</span> <span class="pre">III</span></code></dt><dd><p>R4000</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">MIPS32R2</span></code></dt><dd><p>34Kf</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">MIPS64R6</span></code></dt><dd><p>I6400</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">nanoMIPS</span></code></dt><dd><p>I7200</p>
</dd>
</dl>
</section>
</section>
<section id="nanomips-system-emulator">
<span id="id2"></span><h2>nanoMIPS System emulator<a class="headerlink" href="#nanomips-system-emulator" title="Link to this heading"></a></h2>
<p>Executable <code class="docutils literal notranslate"><span class="pre">qemu-system-mipsel</span></code> also covers simulation of 32-bit
nanoMIPS system in little endian mode:</p>
<ul class="simple">
<li><p>nanoMIPS I7200 CPU</p></li>
</ul>
<p>Example of <code class="docutils literal notranslate"><span class="pre">qemu-system-mipsel</span></code> usage for nanoMIPS is shown below:</p>
<p>Download <code class="docutils literal notranslate"><span class="pre">&lt;disk_image_file&gt;</span></code> from
<a class="reference external" href="https://mipsdistros.mips.com/LinuxDistro/nanomips/buildroot/index.html">https://mipsdistros.mips.com/LinuxDistro/nanomips/buildroot/index.html</a>.</p>
<p>Download <code class="docutils literal notranslate"><span class="pre">&lt;kernel_image_file&gt;</span></code> from
<a class="reference external" href="https://mipsdistros.mips.com/LinuxDistro/nanomips/kernels/v4.15.18-432-gb2eb9a8b07a1-20180627102142/index.html">https://mipsdistros.mips.com/LinuxDistro/nanomips/kernels/v4.15.18-432-gb2eb9a8b07a1-20180627102142/index.html</a>.</p>
<p>Start system emulation of Malta board with nanoMIPS I7200 CPU:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">qemu</span><span class="o">-</span><span class="n">system</span><span class="o">-</span><span class="n">mipsel</span> <span class="o">-</span><span class="n">cpu</span> <span class="n">I7200</span> <span class="o">-</span><span class="n">kernel</span> <span class="o">&lt;</span><span class="n">kernel_image_file</span><span class="o">&gt;</span> \
<span class="o">-</span><span class="n">M</span> <span class="n">malta</span> <span class="o">-</span><span class="n">serial</span> <span class="n">stdio</span> <span class="o">-</span><span class="n">m</span> <span class="o">&lt;</span><span class="n">memory_size</span><span class="o">&gt;</span> <span class="o">-</span><span class="n">hda</span> <span class="o">&lt;</span><span class="n">disk_image_file</span><span class="o">&gt;</span> \
<span class="o">-</span><span class="n">append</span> <span class="s2">&quot;mem=256m@0x0 rw console=ttyS0 vga=cirrus vesa=0x111 root=/dev/sda&quot;</span>
</pre></div>
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