273 lines
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273 lines
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<div class="headertitle"><div class="title">arm_smccc.h File Reference</div></div>
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<p>ARM secure monitor call functions.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include <<a class="el" href="l4_2sys_2types_8h_source.html">l4/sys/types.h</a>></code><br />
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<code>#include <<a class="el" href="l4_2sys_2utcb_8h_source.html">l4/sys/utcb.h</a>></code><br />
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<code>#include <<a class="el" href="l4_2sys_2ipc_8h_source.html">l4/sys/ipc.h</a>></code><br />
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</div><div class="textblock"><div id="dynsection-0" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Include dependency graph for arm_smccc.h:</div>
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<div class="center"><iframe scrolling="no" loading="lazy" frameborder="0" src="arm__smccc_8h__incl.svg" width="727" height="476"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<p><a href="arm__smccc_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-func-members" class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:af6ac9fae329d13399573a66e653aea84" id="r_af6ac9fae329d13399573a66e653aea84"><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="#af6ac9fae329d13399573a66e653aea84">l4_arm_smccc_call</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> pfc, <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) <a class="el" href="group__l4sys__defines.html#ga362dfa378e662dd04f710a23fc7ea931">L4_NOTHROW</a></td></tr>
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<tr class="memdesc:af6ac9fae329d13399573a66e653aea84"><td class="mdescLeft"> </td><td class="mdescRight">C interface for calling the ARM secure monitor, see <a class="el" href="classL4_1_1Arm__smccc.html#adc03a48c7bdb90ce9c5021192dfde0c2" title="ARM SMC/HVC function call.">L4::Arm_smccc::call()</a> for the C++ interface. <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>ARM secure monitor call functions. </p>
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<p class="definition">Definition in file <a class="el" href="arm__smccc_8h_source.html">arm_smccc.h</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">Function Documentation</h2>
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<a id="af6ac9fae329d13399573a66e653aea84" name="af6ac9fae329d13399573a66e653aea84"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af6ac9fae329d13399573a66e653aea84">◆ </a></span>l4_arm_smccc_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__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>pfc</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>in4</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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<span class="mlabels"><span class="mlabel inline">inline</span></span> </td>
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</div><div class="memdoc">
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<p>C interface for calling the ARM secure monitor, see <a class="el" href="classL4_1_1Arm__smccc.html#adc03a48c7bdb90ce9c5021192dfde0c2" title="ARM SMC/HVC function call.">L4::Arm_smccc::call()</a> for the C++ interface. </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">pfc</td><td>Capability of the SMC kernel object. The input parameters consist of a function identifier, 6 arguments and a client id. Results are returned in 4 output parameters.</td></tr>
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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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</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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<p class="definition">Definition at line <a class="el" href="arm__smccc_8h_source.html#l00042">42</a> of file <a class="el" href="arm__smccc_8h_source.html">arm_smccc.h</a>.</p>
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<p class="reference">References <a class="el" href="compiler_8h_source.html#l00161">L4_NOTHROW</a>, and <a class="el" href="l4_2sys_2utcb_8h_source.html#l00346">l4_utcb()</a>.</p>
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<div id="dynsection-1" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Here is the call graph for this function:</div>
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<div class="center"><iframe scrolling="no" loading="lazy" frameborder="0" src="arm__smccc_8h_af6ac9fae329d13399573a66e653aea84_cgraph.svg" width="274" height="36"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<li class="navelem"><b>l4</b></li><li class="navelem"><b>sys</b></li><li class="navelem"><a href="arm__smccc_8h.html">arm_smccc.h</a></li>
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</body>
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</html>
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