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| <section id="ibm-cvc"> |
| <span id="device-tree-ibm-cvc"></span><h1>ibm,cvc<a class="headerlink" href="#ibm-cvc" title="Link to this heading">¶</a></h1> |
| <p>This describes the code (a.k.a container verification code) that skiboot uses |
| to verify signed firmware blobs. Each ibm,cvc child node describes CVC service, |
| which has a version and offset (reg).</p> |
| <p>Added in the device tree from <code class="docutils literal notranslate"><span class="pre">ibm,secureboot-v2</span></code>.</p> |
| <section id="required-properties"> |
| <h2>Required properties<a class="headerlink" href="#required-properties" title="Link to this heading">¶</a></h2> |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>compatible: should be "ibm,container-verification-code" |
| |
| memory-region: this points to the reserved memory where the |
| container-verification-code is stored. |
| </pre></div> |
| </div> |
| </section> |
| <section id="example"> |
| <h2>Example<a class="headerlink" href="#example" title="Link to this heading">¶</a></h2> |
| <div class="highlight-dts notranslate"><div class="highlight"><pre><span></span><span class="nc">ibm,cvc</span> <span class="p">{</span> |
| <span class="nf">phandle</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x10f</span><span class="p">>;</span> |
| <span class="nf">#address-cells</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x1</span><span class="p">>;</span> |
| <span class="nf">#size-cells</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x0</span><span class="p">>;</span> |
| <span class="nf">compatible</span> <span class="o">=</span> <span class="s">"ibm,container-verification-code"</span><span class="p">;</span> |
| <span class="nf">memory-region</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0xaa</span><span class="p">>;</span> |
| |
| <span class="nc">ibm,cvc-service</span><span class="nf">@40</span> <span class="p">{</span> |
| <span class="nf">phandle</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x110</span><span class="p">>;</span> |
| <span class="nf">compatible</span> <span class="o">=</span> <span class="s">"ibm,cvc-sha512"</span><span class="p">;</span> |
| <span class="nf">reg</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x40</span><span class="p">>;</span> |
| <span class="nf">version</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x1</span><span class="p">>;</span> |
| <span class="p">};</span> |
| |
| <span class="nc">ibm,cvc-service</span><span class="nf">@50</span> <span class="p">{</span> |
| <span class="nf">phandle</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x111</span><span class="p">>;</span> |
| <span class="nf">compatible</span> <span class="o">=</span> <span class="s">"ibm,cvc-verify"</span><span class="p">;</span> |
| <span class="nf">reg</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x50</span><span class="p">>;</span> |
| <span class="nf">version</span> <span class="o">=</span> <span class="p"><</span><span class="mh">0x1</span><span class="p">>;</span> |
| <span class="p">};</span> |
| <span class="p">};</span> |
| </pre></div> |
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| <li><a class="reference internal" href="#">ibm,cvc</a><ul> |
| <li><a class="reference internal" href="#required-properties">Required properties</a></li> |
| <li><a class="reference internal" href="#example">Example</a></li> |
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| title="next chapter">ibm,firmware-versions node</a></p> |
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