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<div class="headertitle"><div class="title">CPU related functions <div class="ingroups"><a class="el" href="group__l4util__api.html">Utility Functions</a></div></div></div>
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<div id="dynsection-0" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Collaboration diagram for CPU related functions:</div>
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Functions</h2></td></tr>
<tr class="memitem:gae95607a69173331386af6f334be961ce" id="r_gae95607a69173331386af6f334be961ce"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#gae95607a69173331386af6f334be961ce">l4util_cpu_has_cpuid</a> (void)</td></tr>
<tr class="memdesc:gae95607a69173331386af6f334be961ce"><td class="mdescLeft">&#160;</td><td class="mdescRight">Check whether the CPU supports the "cpuid" instruction. <br /></td></tr>
<tr class="memitem:ga8c07254a927cdb66b4639c7b977eeead" id="r_ga8c07254a927cdb66b4639c7b977eeead"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga8c07254a927cdb66b4639c7b977eeead">l4util_cpu_capabilities</a> (void)</td></tr>
<tr class="memdesc:ga8c07254a927cdb66b4639c7b977eeead"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the CPU capabilities if the "cpuid" instruction is available. <br /></td></tr>
<tr class="memitem:ga7b371adca6d25b6c78978446e7c5d9d7" id="r_ga7b371adca6d25b6c78978446e7c5d9d7"><td class="memItemLeft" align="right" valign="top">unsigned int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga7b371adca6d25b6c78978446e7c5d9d7">l4util_cpu_capabilities_nocheck</a> (void)</td></tr>
<tr class="memdesc:ga7b371adca6d25b6c78978446e7c5d9d7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the CPU capabilities. <br /></td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><b>l4util_cpu_cpuid</b> (unsigned long mode, unsigned long *eax, unsigned long *ebx, unsigned long *ecx, unsigned long *edx)</td></tr>
<tr class="memdesc:ga210ddb09b799c674102ae776eaa9e003"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generic CPUID access function. <br /></td></tr>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ga8c07254a927cdb66b4639c7b977eeead">&#9670;&#160;</a></span>l4util_cpu_capabilities()</h2>
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<td class="memname">unsigned int l4util_cpu_capabilities </td>
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<p>Returns the CPU capabilities if the "cpuid" instruction is available. </p>
<dl class="section return"><dt>Returns</dt><dd>CPU capabilities if the "cpuid" instruction is available, 0 if the "cpuid" instruction is not supported. </dd></dl>
<p class="definition">Definition at line <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00095">95</a> of file <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html">cpu.h</a>.</p>
<p class="reference">References <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00084">l4util_cpu_capabilities_nocheck()</a>, and <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00064">l4util_cpu_has_cpuid()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7b371adca6d25b6c78978446e7c5d9d7">&#9670;&#160;</a></span>l4util_cpu_capabilities_nocheck()</h2>
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<p>Returns the CPU capabilities. </p>
<dl class="section return"><dt>Returns</dt><dd>CPU capabilities. </dd></dl>
<p class="definition">Definition at line <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00084">84</a> of file <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html">cpu.h</a>.</p>
<p class="reference">References <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00070">l4util_cpu_cpuid()</a>.</p>
<p class="reference">Referenced by <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00095">l4util_cpu_capabilities()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#gae95607a69173331386af6f334be961ce">&#9670;&#160;</a></span>l4util_cpu_has_cpuid()</h2>
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<p>Check whether the CPU supports the "cpuid" instruction. </p>
<dl class="section return"><dt>Returns</dt><dd>1 if it has, 0 if it has not </dd></dl>
<p class="definition">Definition at line <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00064">64</a> of file <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html">cpu.h</a>.</p>
<p class="reference">Referenced by <a class="el" href="amd64_2l4_2util_2cpu_8h_source.html#l00095">l4util_cpu_capabilities()</a>.</p>
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