static/freebsd/man9/pmap_mincore.9 4.html


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<table class="head">
  <tr>
    <td class="head-ltitle">PMAP_MINCORE(9)</td>
    <td class="head-vol">Kernel Developer's Manual</td>
    <td class="head-rtitle">PMAP_MINCORE(9)</td>
  </tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">pmap_mincore</code> &#x2014;
    <span class="Nd">determine if a virtual address is resident in physical
    memory</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="In">#include
    &lt;<a class="In">sys/param.h</a>&gt;</code>
  <br/>
  <code class="In">#include &lt;<a class="In">vm/vm.h</a>&gt;</code>
  <br/>
  <code class="In">#include &lt;<a class="In">vm/pmap.h</a>&gt;</code></p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">pmap_mincore</code>(<var class="Fa" style="white-space: nowrap;">pmap_t
    pmap</var>, <var class="Fa" style="white-space: nowrap;">vm_offset_t
    addr</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The
    <a class="permalink" href="#pmap_mincore"><code class="Fn" id="pmap_mincore">pmap_mincore</code></a>()
    function determines if the page at the virtual address
    <var class="Fa">addr</var> in the physical map <var class="Fa">pmap</var> is
    resident in physical memory. It is the machine-dependent interface used by
    the <a class="Xr">mincore(2)</a> system call.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
<p class="Pp">If the page is resident in physical memory, a mask of flags is
    returned, whose meaning is documented in <a class="Xr">mincore(2)</a>;
    otherwise, 0 is returned.</p>
<p class="Pp">The <var class="Fa">pmap</var> must exist and
    <var class="Fa">addr</var> must be mapped into the
    <var class="Fa">pmap</var>. If any error occurs, the machine-dependent
    implementation should return 0.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
  ALSO</a></h1>
<p class="Pp"><a class="Xr">mincore(2)</a>, <a class="Xr">pmap(9)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">This manual page was written by <span class="An">Bruce M
    Simpson</span>
    &lt;<a class="Mt" href="mailto:bms@spc.org">bms@spc.org</a>&gt;.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">July 21, 2003</td>
    <td class="foot-os">FreeBSD 15.0</td>
  </tr>
</table>