UbixOS/doc/xml/createvirtualspace_8c.xml at f54edc39d9cc92e9854f2b62c2460a412793475b

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<?xml version='1.0' encoding='iso-8859-1' standalone='no'?>
<doxygen xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="compound.xsd" version="1.4.7">
  <compounddef id="createvirtualspace_8c" kind="file">
    <compoundname>createvirtualspace.c</compoundname>
    <includes refid="vmm_8h" local="no">vmm/vmm.h</includes>
    <incdepgraph>
      <node id="6125">
        <label>sys/thread.h</label>
        <link refid="thread_8h"/>
        <childnode refid="6121" relation="include">
        </childnode>
      </node>
      <node id="6121">
        <label>ubixos/types.h</label>
        <link refid="types_8h"/>
        <childnode refid="6122" relation="include">
        </childnode>
      </node>
      <node id="6122">
        <label>sys/_types.h</label>
        <link refid="__types_8h"/>
      </node>
      <node id="6120">
        <label>vmm/paging.h</label>
        <link refid="paging_8h"/>
        <childnode refid="6121" relation="include">
        </childnode>
        <childnode refid="6123" relation="include">
        </childnode>
        <childnode refid="6125" relation="include">
        </childnode>
      </node>
      <node id="6118">
        <label>src/sys/vmm/createvirtualspace.c</label>
        <link refid="createvirtualspace.c"/>
        <childnode refid="6119" relation="include">
        </childnode>
      </node>
      <node id="6119">
        <label>vmm/vmm.h</label>
        <link refid="vmm_8h"/>
        <childnode refid="6120" relation="include">
        </childnode>
        <childnode refid="6121" relation="include">
        </childnode>
      </node>
      <node id="6123">
        <label>sys/sysproto.h</label>
        <link refid="sysproto_8h"/>
        <childnode refid="6124" relation="include">
        </childnode>
        <childnode refid="6125" relation="include">
        </childnode>
      </node>
      <node id="6124">
        <label>sys/signal.h</label>
        <link refid="signal_8h"/>
        <childnode refid="6121" relation="include">
        </childnode>
      </node>
    </incdepgraph>
      <sectiondef kind="func">
      <memberdef kind="function" id="createvirtualspace_8c_1c8f92aa05b669f43457fed9002d6cb40" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
        <type>void *</type>
        <definition>void* vmmCreateVirtualSpace</definition>
        <argsstring>(pid_t pid)</argsstring>
        <name>vmmCreateVirtualSpace</name>
        <param>
          <type><ref refid="types_8h_1288e13e815d43b06e75819f8939524df" kindref="member">pid_t</ref></type>
          <declname>pid</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="/usr/home/reddawg/source/ubix2/src/sys/vmm/createvirtualspace.c" line="82" bodyfile="/usr/home/reddawg/source/ubix2/src/sys/vmm/createvirtualspace.c" bodystart="81" bodyend="143"/>
        <references refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" compoundref="paging_8h" startline="52">PAGE_DEFAULT</references>
        <references refid="paging_8h_1b80d68a13753e40b0df8e0dc0c4af870" compoundref="paging_8h" startline="42">pageEntries</references>
        <references refid="paging_8h_1aab3609eb02bd28ded8d1ea0512da979" compoundref="paging_8h" startline="44">parentPageDirAddr</references>
        <references refid="paging_8h_1a432d41840ad8a583a7e6af86feece4f" compoundref="paging_8h" startline="43">tablesBaseAddress</references>
        <references refid="paging_8h_1e88bcfc69132a46a1982237913101a5b" compoundref="getphysicaladdr_8c" startline="40" endline="54">vmm_getPhysicalAddr</references>
        <references refid="paging_8h_1d006a10f436671f8ee9cb402e372ff02" compoundref="getfreepage_8c" startline="48" endline="77">vmmGetFreePage</references>
        <references refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" compoundref="unmappage_8c" startline="50" endline="80">vmmUnmapPage</references>
        <referencedby refid="exec_8c_1f80d4412d42ed1b5bf9a1b9774230f33" compoundref="exec_8c" startline="143" endline="323">execFile</referencedby>
      </memberdef>
      </sectiondef>
    <briefdescription>
    </briefdescription>
    <detaileddescription>
    </detaileddescription>
    <programlisting>
<codeline lineno="1"><highlight class="comment">/*****************************************************************************************</highlight></codeline>
<codeline lineno="2"><highlight class="comment"><sp/>Copyright<sp/>(c)<sp/>2002<sp/>The<sp/>UbixOS<sp/>Project</highlight></codeline>
<codeline lineno="3"><highlight class="comment"><sp/>All<sp/>rights<sp/>reserved.</highlight></codeline>
<codeline lineno="4"><highlight class="comment"></highlight></codeline>
<codeline lineno="5"><highlight class="comment">Redistribution<sp/>and<sp/>use<sp/>in<sp/>source<sp/>and<sp/>binary<sp/>forms,<sp/>with<sp/>or<sp/>without<sp/>modification,<sp/>are</highlight></codeline>
<codeline lineno="6"><highlight class="comment">permitted<sp/>provided<sp/>that<sp/>the<sp/>following<sp/>conditions<sp/>are<sp/>met:</highlight></codeline>
<codeline lineno="7"><highlight class="comment"></highlight></codeline>
<codeline lineno="8"><highlight class="comment">Redistributions<sp/>of<sp/>source<sp/>code<sp/>must<sp/>retain<sp/>the<sp/>above<sp/>copyright<sp/>notice,<sp/>this<sp/>list<sp/>of</highlight></codeline>
<codeline lineno="9"><highlight class="comment">conditions,<sp/>the<sp/>following<sp/>disclaimer<sp/>and<sp/>the<sp/>list<sp/>of<sp/>authors.<sp/><sp/>Redistributions<sp/>in<sp/>binary</highlight></codeline>
<codeline lineno="10"><highlight class="comment">form<sp/>must<sp/>reproduce<sp/>the<sp/>above<sp/>copyright<sp/>notice,<sp/>this<sp/>list<sp/>of<sp/>conditions,<sp/>the<sp/>following</highlight></codeline>
<codeline lineno="11"><highlight class="comment">disclaimer<sp/>and<sp/>the<sp/>list<sp/>of<sp/>authors<sp/>in<sp/>the<sp/>documentation<sp/>and/or<sp/>other<sp/>materials<sp/>provided</highlight></codeline>
<codeline lineno="12"><highlight class="comment">with<sp/>the<sp/>distribution.<sp/>Neither<sp/>the<sp/>name<sp/>of<sp/>the<sp/>UbixOS<sp/>Project<sp/>nor<sp/>the<sp/>names<sp/>of<sp/>its</highlight></codeline>
<codeline lineno="13"><highlight class="comment">contributors<sp/>may<sp/>be<sp/>used<sp/>to<sp/>endorse<sp/>or<sp/>promote<sp/>products<sp/>derived<sp/>from<sp/>this<sp/>software</highlight></codeline>
<codeline lineno="14"><highlight class="comment">without<sp/>specific<sp/>prior<sp/>written<sp/>permission.</highlight></codeline>
<codeline lineno="15"><highlight class="comment"></highlight></codeline>
<codeline lineno="16"><highlight class="comment">THIS<sp/>SOFTWARE<sp/>IS<sp/>PROVIDED<sp/>BY<sp/>THE<sp/>COPYRIGHT<sp/>HOLDERS<sp/>AND<sp/>CONTRIBUTORS<sp/>&quot;AS<sp/>IS&quot;<sp/>AND<sp/>ANY</highlight></codeline>
<codeline lineno="17"><highlight class="comment">EXPRESS<sp/>OR<sp/>IMPLIED<sp/>WARRANTIES,<sp/>INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>THE<sp/>IMPLIED<sp/>WARRANTIES<sp/>OF</highlight></codeline>
<codeline lineno="18"><highlight class="comment">MERCHANTABILITY<sp/>AND<sp/>FITNESS<sp/>FOR<sp/>A<sp/>PARTICULAR<sp/>PURPOSE<sp/>ARE<sp/>DISCLAIMED.<sp/>IN<sp/>NO<sp/>EVENT<sp/>SHALL</highlight></codeline>
<codeline lineno="19"><highlight class="comment">THE<sp/>COPYRIGHT<sp/>OWNER<sp/>OR<sp/>CONTRIBUTORS<sp/>BE<sp/>LIABLE<sp/>FOR<sp/>ANY<sp/>DIRECT,<sp/>INDIRECT,<sp/>INCIDENTAL,</highlight></codeline>
<codeline lineno="20"><highlight class="comment">SPECIAL,<sp/>EXEMPLARY,<sp/>OR<sp/>CONSEQUENTIAL<sp/>DAMAGES<sp/>(INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>PROCUREMENT</highlight></codeline>
<codeline lineno="21"><highlight class="comment">OF<sp/>SUBSTITUTE<sp/>GOODS<sp/>OR<sp/>SERVICES;<sp/>LOSS<sp/>OF<sp/>USE,<sp/>DATA,<sp/>OR<sp/>PROFITS;<sp/>OR<sp/>BUSINESS<sp/>INTERRUPTION)</highlight></codeline>
<codeline lineno="22"><highlight class="comment">HOWEVER<sp/>CAUSED<sp/>AND<sp/>ON<sp/>ANY<sp/>THEORY<sp/>OF<sp/>LIABILITY,<sp/>WHETHER<sp/>IN<sp/>CONTRACT,<sp/>STRICT<sp/>LIABILITY,<sp/>OR</highlight></codeline>
<codeline lineno="23"><highlight class="comment">TORT<sp/>(INCLUDING<sp/>NEGLIGENCE<sp/>OR<sp/>OTHERWISE)<sp/>ARISING<sp/>IN<sp/>ANY<sp/>WAY<sp/>OUT<sp/>OF<sp/>THE<sp/>USE<sp/>OF<sp/>THIS</highlight></codeline>
<codeline lineno="24"><highlight class="comment">SOFTWARE,<sp/>EVEN<sp/>IF<sp/>ADVISED<sp/>OF<sp/>THE<sp/>POSSIBILITY<sp/>OF<sp/>SUCH<sp/>DAMAGE.</highlight></codeline>
<codeline lineno="25"><highlight class="comment"></highlight></codeline>
<codeline lineno="26"><highlight class="comment"><sp/>$Log: createvirtualspace_8c.xml,v $
<codeline lineno="26"><highlight class="comment"><sp/>Revision 1.6  2006/12/19 14:12:50  reddawg
<codeline lineno="26"><highlight class="comment"><sp/>rtld-elf almost workign
<codeline lineno="26"><highlight class="comment"><sp/></highlight></codeline>
<codeline lineno="27"><highlight class="comment"><sp/>Revision<sp/>1.1.1.1<sp/><sp/>2006/06/01<sp/>12:46:13<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="28"><highlight class="comment"><sp/>ubix2</highlight></codeline>
<codeline lineno="29"><highlight class="comment"></highlight></codeline>
<codeline lineno="30"><highlight class="comment"><sp/>Revision<sp/>1.2<sp/><sp/>2005/10/12<sp/>00:13:38<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="31"><highlight class="comment"><sp/>Removed</highlight></codeline>
<codeline lineno="32"><highlight class="comment"></highlight></codeline>
<codeline lineno="33"><highlight class="comment"><sp/>Revision<sp/>1.1.1.1<sp/><sp/>2005/09/26<sp/>17:24:50<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="34"><highlight class="comment"><sp/>no<sp/>message</highlight></codeline>
<codeline lineno="35"><highlight class="comment"></highlight></codeline>
<codeline lineno="36"><highlight class="comment"><sp/>Revision<sp/>1.2<sp/><sp/>2004/07/28<sp/>15:05:43<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="37"><highlight class="comment"><sp/>Major:</highlight></codeline>
<codeline lineno="38"><highlight class="comment"><sp/><sp/><sp/>Pages<sp/>now<sp/>have<sp/>strict<sp/>security<sp/>enforcement.</highlight></codeline>
<codeline lineno="39"><highlight class="comment"><sp/><sp/><sp/>Many<sp/>null<sp/>dereferences<sp/>have<sp/>been<sp/>resolved.</highlight></codeline>
<codeline lineno="40"><highlight class="comment"><sp/><sp/><sp/>When<sp/>apps<sp/>loaded<sp/>permissions<sp/>set<sp/>for<sp/>pages<sp/>rw<sp/>and<sp/>ro</highlight></codeline>
<codeline lineno="41"><highlight class="comment"></highlight></codeline>
<codeline lineno="42"><highlight class="comment"><sp/>Revision<sp/>1.1.1.1<sp/><sp/>2004/04/15<sp/>12:06:51<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="43"><highlight class="comment"><sp/>UbixOS<sp/>v1.0</highlight></codeline>
<codeline lineno="44"><highlight class="comment"></highlight></codeline>
<codeline lineno="45"><highlight class="comment"><sp/>Revision<sp/>1.8<sp/><sp/>2004/04/13<sp/>16:36:34<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="46"><highlight class="comment"><sp/>Changed<sp/>our<sp/>copyright,<sp/>it<sp/>is<sp/>all<sp/>now<sp/>under<sp/>a<sp/>BSD-Style<sp/>license</highlight></codeline>
<codeline lineno="47"><highlight class="comment"></highlight></codeline>
<codeline lineno="48"><highlight class="comment"></highlight></codeline>
<codeline lineno="49"><highlight class="comment"></highlight></codeline>
<codeline lineno="50"><highlight class="comment"><sp/>$Id: createvirtualspace_8c.xml 88 2016-01-12 00:11:29Z reddawg $</highlight></codeline>
<codeline lineno="51"><highlight class="comment"></highlight></codeline>
<codeline lineno="52"><highlight class="comment">*****************************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="53"><highlight class="normal"></highlight></codeline>
<codeline lineno="54"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;<ref refid="vmm_8h" kindref="compound">vmm/vmm.h</ref>&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="55"><highlight class="normal"></highlight></codeline>
<codeline lineno="56"><highlight class="normal"></highlight></codeline>
<codeline lineno="57"><highlight class="normal"></highlight><highlight class="comment">/************************************************************************</highlight></codeline>
<codeline lineno="58"><highlight class="comment"></highlight></codeline>
<codeline lineno="59"><highlight class="comment">Function:<sp/>void<sp/>*vmmCreateVirtualSpace(pid_t);</highlight></codeline>
<codeline lineno="60"><highlight class="comment">Description:<sp/>Creates<sp/>A<sp/>Virtual<sp/>Space<sp/>For<sp/>A<sp/>New<sp/>Task</highlight></codeline>
<codeline lineno="61"><highlight class="comment">Notes:</highlight></codeline>
<codeline lineno="62"><highlight class="comment"></highlight></codeline>
<codeline lineno="63"><highlight class="comment">07/30/02<sp/>-<sp/>This<sp/>Is<sp/>Going<sp/>To<sp/>Create<sp/>A<sp/>New<sp/>VM<sp/>Space<sp/>However<sp/>Its<sp/>Going<sp/>To</highlight></codeline>
<codeline lineno="64"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>Share<sp/>The<sp/>Same<sp/>Top<sp/>1GB<sp/>Space<sp/>With<sp/>The<sp/>Kernels<sp/>VM<sp/>And<sp/>Lower</highlight></codeline>
<codeline lineno="65"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>1MB<sp/>Of<sp/>VM<sp/>Space<sp/>With<sp/>The<sp/>Kernel</highlight></codeline>
<codeline lineno="66"><highlight class="comment"></highlight></codeline>
<codeline lineno="67"><highlight class="comment">07/30/02<sp/>-<sp/>Note<sp/>This<sp/>Is<sp/>Going<sp/>To<sp/>Get<sp/>The<sp/>Top<sp/>1Gig<sp/>And<sp/>Lower<sp/>1MB<sp/>Region</highlight></codeline>
<codeline lineno="68"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>From<sp/>The<sp/>Currently<sp/>Loaded<sp/>Page<sp/>Directory<sp/>This<sp/>Is<sp/>Safe<sp/>Because</highlight></codeline>
<codeline lineno="69"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>All<sp/>VM<sp/>Spaces<sp/>Will<sp/>Share<sp/>These<sp/>Regions</highlight></codeline>
<codeline lineno="70"><highlight class="comment"></highlight></codeline>
<codeline lineno="71"><highlight class="comment">07/30/02<sp/>-<sp/>Note<sp/>I<sp/>Realized<sp/>A<sp/>Mistake<sp/>The<sp/>First<sp/>Page<sp/>Table<sp/>Will<sp/>Need<sp/>To<sp/>Be</highlight></codeline>
<codeline lineno="72"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>A<sp/>Copy<sp/>But<sp/>The<sp/>Page<sp/>Tables<sp/>For<sp/>The<sp/>Top<sp/>1GB<sp/>Will<sp/>Not<sp/>Reason<sp/>For</highlight></codeline>
<codeline lineno="73"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>This<sp/>Is<sp/>That<sp/>We<sp/>Just<sp/>Share<sp/>The<sp/>First<sp/>1MB<sp/>In<sp/>The<sp/>First<sp/>Page<sp/>Table</highlight></codeline>
<codeline lineno="74"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>So<sp/>We<sp/>Will<sp/>Just<sp/>Share<sp/>Physical<sp/>Pages.</highlight></codeline>
<codeline lineno="75"><highlight class="comment"></highlight></codeline>
<codeline lineno="76"><highlight class="comment">08/02/02<sp/>-<sp/>Added<sp/>Passing<sp/>Of<sp/>pid_t<sp/>pid<sp/>For<sp/>Better<sp/>Tracking<sp/>Of<sp/>Who<sp/>Has<sp/>Which</highlight></codeline>
<codeline lineno="77"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>Set<sp/>Of<sp/>Pages</highlight></codeline>
<codeline lineno="78"><highlight class="comment"></highlight></codeline>
<codeline lineno="79"><highlight class="comment">************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="80"><highlight class="normal"></highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>*</highlight></codeline>
<codeline lineno="81" refid="createvirtualspace_8c_1c8f92aa05b669f43457fed9002d6cb40" refkind="member"><highlight class="normal"><ref refid="paging_8h_139ac9b6ea58fc8b6f129775642077c99" kindref="member">vmmCreateVirtualSpace</ref>(<ref refid="types_8h_1288e13e815d43b06e75819f8939524df" kindref="member">pid_t</ref><sp/>pid)</highlight></codeline>
<codeline lineno="82"><highlight class="normal">{</highlight></codeline>
<codeline lineno="83"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>*newPageDirectoryAddress<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="84"><highlight class="normal"><sp/><sp/><ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>*parentPageDirectory<sp/>=<sp/>0x0,<sp/>*newPageDirectory<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="85"><highlight class="normal"><sp/><sp/><ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>*parentPageTable<sp/>=<sp/>0x0,<sp/>*newPageTable<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="86"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordtype">int</highlight><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>x<sp/>=<sp/>0;</highlight></codeline>
<codeline lineno="87"><highlight class="normal"></highlight></codeline>
<codeline lineno="88"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Address<sp/>Of<sp/>Parent<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="89"><highlight class="normal"><sp/><sp/>parentPageDirectory<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_1aab3609eb02bd28ded8d1ea0512da979" kindref="member">parentPageDirAddr</ref>;</highlight></codeline>
<codeline lineno="90"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Allocate<sp/>A<sp/>New<sp/>Page<sp/>For<sp/>The<sp/>New<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="91"><highlight class="normal"><sp/><sp/>newPageDirectory<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_1d006a10f436671f8ee9cb402e372ff02" kindref="member">vmmGetFreePage</ref>(pid);</highlight></codeline>
<codeline lineno="92"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>newPageDirectoryAddress<sp/>To<sp/>The<sp/>Newly<sp/>Created<sp/>Page<sp/>Directories<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="93"><highlight class="normal"><sp/><sp/>newPageDirectoryAddress<sp/>=<sp/>(</highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/>*)<ref refid="paging_8h_1e88bcfc69132a46a1982237913101a5b" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageDirectory);</highlight></codeline>
<codeline lineno="94"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>First<sp/>Set<sp/>Up<sp/>A<sp/>Flushed<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="95"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0;<sp/>x<sp/>&lt;<sp/><ref refid="paging_8h_1b80d68a13753e40b0df8e0dc0c4af870" kindref="member">pageEntries</ref>;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="96"><highlight class="normal"><sp/><sp/><sp/><sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageDirectory[x]<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>0x0;</highlight></codeline>
<codeline lineno="97"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="98"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>The<sp/>Top<sp/>1GB<sp/>Region<sp/>Of<sp/>The<sp/>VM<sp/>Space<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="99"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>768;<sp/>x<sp/>&lt;<sp/>pageEntries;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="100"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageDirectory[x]<sp/>=<sp/>parentPageDirectory[x];</highlight></codeline>
<codeline lineno="101"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="102"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="103"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Allocate<sp/>A<sp/>New<sp/>Page<sp/>For<sp/>The<sp/>The<sp/>First<sp/>Page<sp/>Table<sp/>Where<sp/>We<sp/>Will<sp/>Map<sp/>The</highlight></codeline>
<codeline lineno="104"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Lower<sp/>Region</highlight></codeline>
<codeline lineno="105"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="106"><highlight class="normal"><sp/><sp/>newPageTable<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_1d006a10f436671f8ee9cb402e372ff02" kindref="member">vmmGetFreePage</ref>(pid);</highlight></codeline>
<codeline lineno="107"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Flush<sp/>The<sp/>Page<sp/>From<sp/>Garbage<sp/>In<sp/>Memory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="108"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0;<sp/>x<sp/>&lt;<sp/>pageEntries;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="109"><highlight class="normal"><sp/><sp/><sp/><sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageTable[x]<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>0x0;</highlight></codeline>
<codeline lineno="110"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="111"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>This<sp/>Into<sp/>The<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="112"><highlight class="normal"><sp/><sp/>newPageDirectory[0]<sp/>=<sp/>(<ref refid="paging_8h_1e88bcfc69132a46a1982237913101a5b" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="113"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Address<sp/>Of<sp/>Parents<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="114"><highlight class="normal"><sp/><sp/>parentPageTable<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_1a432d41840ad8a583a7e6af86feece4f" kindref="member">tablesBaseAddress</ref>;</highlight></codeline>
<codeline lineno="115"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>The<sp/>First<sp/>1MB<sp/>Worth<sp/>Of<sp/>Pages<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="116"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0;<sp/>x<sp/>&lt;<sp/>(pageEntries<sp/>/<sp/>4);<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="117"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>parentPageTable[x];</highlight></codeline>
<codeline lineno="118"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="119"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Virtual<sp/>Mapping<sp/>For<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="120"><highlight class="normal"><sp/><sp/>newPageTable[256]<sp/>=<sp/>(<ref refid="paging_8h_1e88bcfc69132a46a1982237913101a5b" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageDirectory)<sp/>|<sp/><ref refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="121"><highlight class="normal"></highlight></codeline>
<codeline lineno="122"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="123"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Now<sp/>The<sp/>Fun<sp/>Stuff<sp/>Build<sp/>The<sp/>Initial<sp/>Virtual<sp/>Page<sp/>Space<sp/>So<sp/>We<sp/>Don&apos;t<sp/>Have</highlight></codeline>
<codeline lineno="124"><highlight class="comment"><sp/><sp/><sp/>*<sp/>To<sp/>Worry<sp/>About<sp/>Mapping<sp/>Them<sp/>In<sp/>Later<sp/>How<sp/>Ever<sp/>I&apos;m<sp/>Concerned<sp/>This<sp/>May</highlight></codeline>
<codeline lineno="125"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Become<sp/>A<sp/>Security<sp/>Issue</highlight></codeline>
<codeline lineno="126"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="127"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>First<sp/>Lets<sp/>Unmap<sp/>The<sp/>Previously<sp/>Allocated<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="128"><highlight class="normal"><sp/><sp/><ref refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" kindref="member">vmmUnmapPage</ref>((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="129"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Allocate<sp/>A<sp/>New<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="130"><highlight class="normal"><sp/><sp/>newPageTable<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_1d006a10f436671f8ee9cb402e372ff02" kindref="member">vmmGetFreePage</ref>(pid);</highlight></codeline>
<codeline lineno="131"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>First<sp/>Set<sp/>Our<sp/>Page<sp/>Directory<sp/>To<sp/>Contain<sp/>This<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="132"><highlight class="normal"><sp/><sp/>newPageDirectory[767]<sp/>=<sp/><ref refid="paging_8h_1e88bcfc69132a46a1982237913101a5b" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>;</highlight></codeline>
<codeline lineno="133"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Now<sp/>Lets<sp/>Build<sp/>The<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="134"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0;<sp/>x<sp/>&lt;<sp/>pageEntries;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="135"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>newPageDirectory[x];</highlight></codeline>
<codeline lineno="136"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="137"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Now<sp/>We<sp/>Are<sp/>Done<sp/>So<sp/>Lets<sp/>Unmap<sp/>This<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="138"><highlight class="normal"><sp/><sp/><ref refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" kindref="member">vmmUnmapPage</ref>((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="139"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Now<sp/>We<sp/>Are<sp/>Done<sp/>With<sp/>The<sp/>Page<sp/>Directory<sp/>So<sp/>Lets<sp/>Unmap<sp/>That<sp/>Too<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="140"><highlight class="normal"><sp/><sp/><ref refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" kindref="member">vmmUnmapPage</ref>((uInt32)<sp/>newPageDirectory,<sp/>1);</highlight></codeline>
<codeline lineno="141"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Return<sp/>Physical<sp/>Address<sp/>Of<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="142"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>(newPageDirectoryAddress);</highlight></codeline>
<codeline lineno="143"><highlight class="normal">}</highlight></codeline>
<codeline lineno="144"><highlight class="normal"></highlight></codeline>
<codeline lineno="145"><highlight class="normal"></highlight><highlight class="comment">/***</highlight></codeline>
<codeline lineno="146"><highlight class="comment"><sp/>END</highlight></codeline>
<codeline lineno="147"><highlight class="comment"><sp/>***/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="148"><highlight class="normal"></highlight></codeline>
    </programlisting>
    <location file="/usr/home/reddawg/source/ubix2/src/sys/vmm/createvirtualspace.c"/>
  </compounddef>
</doxygen>