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<div class="headertitle"><div class="title">L4::Arm_smccc Class Reference</div></div>
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<p>Wrapper for function calls that follow the ARM SMC/HVC calling convention.
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<a href="#details">More...</a></p>
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<p><code>#include <<a class="el" href="arm__smccc_source.html">arm_smccc</a>></code></p>
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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 L4::Arm_smccc:</div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-pub-methods" class="groupheader"><a id="pub-methods" name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:adc03a48c7bdb90ce9c5021192dfde0c2" id="r_adc03a48c7bdb90ce9c5021192dfde0c2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structl4__msgtag__t.html">l4_msgtag_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#adc03a48c7bdb90ce9c5021192dfde0c2">call</a> (<a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> func, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> in0, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> in1, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> in2, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> in3, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> in4, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> in5, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *out0, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *out1, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *out2, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *out3, <a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> client_id)</td></tr>
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<tr class="memdesc:adc03a48c7bdb90ce9c5021192dfde0c2"><td class="mdescLeft"> </td><td class="mdescRight">ARM SMC/HVC function call. <br /></td></tr>
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</table>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Wrapper for function calls that follow the ARM SMC/HVC calling convention. </p>
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<p>See <a class="el" href="arm__smccc_8h.html#af6ac9fae329d13399573a66e653aea84" title="C interface for calling the ARM secure monitor, see L4::Arm_smccc::call() for the C++ interface.">l4_arm_smccc_call()</a> for the corresponding C interface. </p>
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<p class="definition">Definition at line <a class="el" href="arm__smccc_source.html#l00023">23</a> of file <a class="el" href="arm__smccc_source.html">arm_smccc</a>.</p>
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</div><a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Member Function Documentation</h2>
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<a id="adc03a48c7bdb90ce9c5021192dfde0c2" name="adc03a48c7bdb90ce9c5021192dfde0c2"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#adc03a48c7bdb90ce9c5021192dfde0c2">◆ </a></span>call()</h2>
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<td class="memname"><a class="el" href="structl4__msgtag__t.html">l4_msgtag_t</a> L4::Arm_smccc::call </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></td> <td class="paramname"><span class="paramname"><em>func</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></td> <td class="paramname"><span class="paramname"><em>in0</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></td> <td class="paramname"><span class="paramname"><em>in2</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></td> <td class="paramname"><span class="paramname"><em>in3</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></td> <td class="paramname"><span class="paramname"><em>in5</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *</td> <td class="paramname"><span class="paramname"><em>out0</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *</td> <td class="paramname"><span class="paramname"><em>out1</em></span>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *</td> <td class="paramname"><span class="paramname"><em>out2</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> *</td> <td class="paramname"><span class="paramname"><em>out3</em></span>, </td>
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<td class="paramtype"><a class="el" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></td> <td class="paramname"><span class="paramname"><em>client_id</em></span> )</td>
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<p>ARM SMC/HVC function call. </p>
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<p>The input parameters consist of a function identifier, 6 arguments and a client id. Results are returned in 4 output parameters.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir"></td><td class="paramname">func</td><td>Function identifier.<ul>
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<li>Bit 31 has to be set: This marks the call as <em>Fast Call</em>. <em>Yielding Calls</em> (bit 31 unset) are rejected by the kernel.</li>
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<li>Bit 30 defines the calling convention:</li>
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<li>Bit 30 == 1: 64-bit calling convention.</li>
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<li>Bit 30 == 0: 32-bit calling convention.</li>
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<li>Bits 24..29 determine the service call ID. The permitted IDs are set in the kernel configuration. By default only service IDs >= 0x30000000 (<em>Trusted Application Calls</em> and <em>Trusted OS Calls</em>) are allowed. </li>
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</ul>
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</td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">in0</td><td>First input parameter. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">in1</td><td>Second input parameter. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">in2</td><td>Third input parameter. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">in3</td><td>Fourth input parameter. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">in4</td><td>Fifth input parameter. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">in5</td><td>Sixth input parameter. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out0</td><td>First output parameter. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out1</td><td>Second output parameter. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out2</td><td>Third output parameter. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">out3</td><td>Fourth output parameter. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">client_id</td><td>Client ID. According to the specification, this value might be ignored by certain functions.</td></tr>
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</table>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">-L4_ENOSYS</td><td>Either bit 31 of the function call not set or service ID outside the range permitted by kernel configuration. </td></tr>
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<tr><td class="paramname">-L4_EINVAL</td><td>Invalid number of parameters. </td></tr>
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<tr><td class="paramname"><0</td><td>Other <a class="el" href="namespaceL4.html" title="L4 low-level kernel interface.">L4</a> error. </td></tr>
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<tr><td class="paramname">0</td><td>Success. </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li>l4/sys/<a class="el" href="arm__smccc_source.html">arm_smccc</a></li>
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