UbixOS/doc/xml/copyvirtualspace_8c.xml at 1.0-RELEASE

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Christopher W. Olsen on 15 Nov 2017 57 KB Adding Sources
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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="copyvirtualspace_8c" kind="file">
    <compoundname>copyvirtualspace.c</compoundname>
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    <includes refid="kern__sysctl_8h" local="no">sys/kern_sysctl.h</includes>
    <includes refid="spinlock_8h" local="no">ubixos/spinlock.h</includes>
    <includes refid="kpanic_8h" local="no">ubixos/kpanic.h</includes>
    <includes refid="string_8h" local="no">string.h</includes>
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        <label>ubixos/kpanic.h</label>
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        <label>vmm/paging.h</label>
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        </childnode>
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        <label>sys/kern_sysctl.h</label>
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        </childnode>
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        <label>vmm/vmm.h</label>
        <link refid="vmm_8h"/>
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        <label>sys/sysproto.h</label>
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        <label>sys/signal.h</label>
        <link refid="signal_8h"/>
        <childnode refid="6108" relation="include">
        </childnode>
      </node>
      <node id="6105">
        <label>src/sys/vmm/copyvirtualspace.c</label>
        <link refid="copyvirtualspace.c"/>
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    </incdepgraph>
      <sectiondef kind="func">
      <memberdef kind="function" id="copyvirtualspace_8c_12d305244a54b4bb8c56698eca1b4c82c" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
        <type>void *</type>
        <definition>void* vmmCopyVirtualSpace</definition>
        <argsstring>(pidType pid)</argsstring>
        <name>vmmCopyVirtualSpace</name>
        <param>
          <type><ref refid="types_8h_1e438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref></type>
          <declname>pid</declname>
        </param>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="/usr/home/reddawg/source/ubix2/src/sys/vmm/copyvirtualspace.c" line="54" bodyfile="/usr/home/reddawg/source/ubix2/src/sys/vmm/copyvirtualspace.c" bodystart="53" bodyend="206"/>
        <references refid="vmm_8h_1362d462b3a1e19b5e0ef95e1839dbf11" compoundref="vmm__memory_8c" startline="266" endline="283">adjustCowCounter</references>
        <references refid="copyvirtualspace_8c_1d0e5c4817eb928f6db5f6b89bb96d997" compoundref="copyvirtualspace_8c" startline="36">cvsSpinLock</references>
        <references refid="kpanic_8h_1db9a182aa071791a306163d50d653deb" compoundref="kpanic_8c" startline="42" endline="60">kpanic</references>
        <references refid="lib_2string_8h_1ce4b911463887af5e748326323e99a23" compoundref="memset_8c" startline="37" endline="80">memset</references>
        <references refid="paging_8h_157d743cb60fe478f6720c42315e7e813" compoundref="paging_8h" startline="46">PAGE_COW</references>
        <references refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" compoundref="paging_8h" startline="52">PAGE_DEFAULT</references>
        <references refid="paging_8h_11532db17068ba8d409b8ffe066414af2" compoundref="paging_8h" startline="47">PAGE_STACK</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="spinlock_8h_12cd9a4502680fb8e7f0fe6b029e558b1" compoundref="spinlock_8c" startline="56" endline="62">spinLock</references>
        <references refid="spinlock_8h_1dd996cbbb3b9826dd9c8cf02b66a4c65" compoundref="spinlock_8c" startline="37" endline="46">spinUnlock</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_130a38035243b9dfb285b3793788126be" compoundref="paging_8c" startline="253" endline="301">vmmGetFreeKernelPage</references>
        <references refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" compoundref="unmappage_8c" startline="50" endline="80">vmmUnmapPage</references>
        <references refid="ap-boot_8S_11a3ac2137e21f6f0d400f1996914dd19" compoundref="ap-boot_8S" startline="6">x1</references>
        <references refid="ap-boot_8S_1f78b91f02427adef14bb8b28aa93baa5" compoundref="ap-boot_8S" startline="52">x1000</references>
        <referencedby refid="fork_8c_1193d99c9f4dbfbfaad8a1ef486582f2d" compoundref="fork_8c" startline="50" endline="98">fork_copyProcess</referencedby>
      </memberdef>
      </sectiondef>
      <sectiondef kind="var">
      <memberdef kind="variable" id="copyvirtualspace_8c_1d0e5c4817eb928f6db5f6b89bb96d997" prot="public" static="yes" mutable="no">
        <type><ref refid="spinlock_8h_1a240e9404b4ede1e0d714610080d1176" kindref="member">spinLock_t</ref></type>
        <definition>spinLock_t cvsSpinLock</definition>
        <argsstring></argsstring>
        <name>cvsSpinLock</name>
        <initializer> SPIN_LOCK_INITIALIZER</initializer>
        <briefdescription>
        </briefdescription>
        <detaileddescription>
        </detaileddescription>
        <inbodydescription>
        </inbodydescription>
        <location file="/usr/home/reddawg/source/ubix2/src/sys/vmm/copyvirtualspace.c" line="36" bodyfile="/usr/home/reddawg/source/ubix2/src/sys/vmm/copyvirtualspace.c" bodystart="36" bodyend="-1"/>
        <referencedby refid="copyvirtualspace_8c_12d305244a54b4bb8c56698eca1b4c82c" compoundref="copyvirtualspace_8c" startline="53" endline="206">vmmCopyVirtualSpace</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/>2002-2004<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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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"><sp/>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/>$Id: copyvirtualspace_8c.xml 88 2016-01-12 00:11:29Z reddawg $</highlight></codeline>
<codeline lineno="27"><highlight class="comment"></highlight></codeline>
<codeline lineno="28"><highlight class="comment">*****************************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="29"><highlight class="normal"></highlight></codeline>
<codeline lineno="30"><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="31"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;<ref refid="kern__sysctl_8h" kindref="compound">sys/kern_sysctl.h</ref>&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="32"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;<ref refid="spinlock_8h" kindref="compound">ubixos/spinlock.h</ref>&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="33"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;<ref refid="kpanic_8h" kindref="compound">ubixos/kpanic.h</ref>&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="34"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;<ref refid="string_8h" kindref="compound">string.h</ref>&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="35"><highlight class="normal"></highlight></codeline>
<codeline lineno="36" refid="copyvirtualspace_8c_1d0e5c4817eb928f6db5f6b89bb96d997" refkind="member"><highlight class="normal"></highlight><highlight class="keyword">static</highlight><highlight class="normal"><sp/><ref refid="spinlock_8h_1a240e9404b4ede1e0d714610080d1176" kindref="member">spinLock_t</ref><sp/><ref refid="copyvirtualspace_8c_1d0e5c4817eb928f6db5f6b89bb96d997" kindref="member">cvsSpinLock</ref><sp/>=<sp/><ref refid="spinlock_8h_10fe85a4f3642683148b25916d6c5eafd" kindref="member">SPIN_LOCK_INITIALIZER</ref>;</highlight></codeline>
<codeline lineno="37"><highlight class="normal"></highlight></codeline>
<codeline lineno="38"><highlight class="normal"></highlight><highlight class="comment">/************************************************************************</highlight></codeline>
<codeline lineno="39"><highlight class="comment"></highlight></codeline>
<codeline lineno="40"><highlight class="comment">Function:<sp/>void<sp/>*vmmCopyVirtualSpace(pidType<sp/>pid);</highlight></codeline>
<codeline lineno="41"><highlight class="comment"></highlight></codeline>
<codeline lineno="42"><highlight class="comment">Description:<sp/>Creates<sp/>A<sp/>Copy<sp/>Of<sp/>A<sp/>Virtual<sp/>Space<sp/>And<sp/>Set<sp/>All<sp/>NON<sp/>Kernel</highlight></codeline>
<codeline lineno="43"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>Space<sp/>To<sp/>COW<sp/>For<sp/>A<sp/>Fork<sp/>This<sp/>Will<sp/>Also<sp/>Alter<sp/>The<sp/>Parents</highlight></codeline>
<codeline lineno="44"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>VM<sp/>Space<sp/>To<sp/>Make<sp/>That<sp/>COW<sp/>As<sp/>Well</highlight></codeline>
<codeline lineno="45"><highlight class="comment"></highlight></codeline>
<codeline lineno="46"><highlight class="comment">Notes:</highlight></codeline>
<codeline lineno="47"><highlight class="comment"></highlight></codeline>
<codeline lineno="48"><highlight class="comment">08/02/02<sp/>-<sp/>Added<sp/>Passing<sp/>Of<sp/>pidType<sp/>pid<sp/>So<sp/>We<sp/>Can<sp/>Better<sp/>Keep<sp/>Track<sp/>Of</highlight></codeline>
<codeline lineno="49"><highlight class="comment"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>Which<sp/>Task<sp/>Has<sp/>Which<sp/>Physical<sp/>Pages</highlight></codeline>
<codeline lineno="50"><highlight class="comment"></highlight></codeline>
<codeline lineno="51"><highlight class="comment">************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="52"><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="53" refid="copyvirtualspace_8c_12d305244a54b4bb8c56698eca1b4c82c" refkind="member"><highlight class="normal"><ref refid="paging_8h_141985de19bd46cbe3b702cee74168dec" kindref="member">vmmCopyVirtualSpace</ref>(<ref refid="types_8h_1e438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref><sp/>pid)</highlight></codeline>
<codeline lineno="54"><highlight class="normal">{</highlight></codeline>
<codeline lineno="55"><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="56"><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="57"><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="58"><highlight class="normal"><sp/><sp/><ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>*parentStackPage<sp/>=<sp/>0x0,<sp/>*newStackPage<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="59"><highlight class="normal"><sp/><sp/><ref refid="types_8h_13b65128d2644e9b80cec9a69bfa7e094" kindref="member">uInt16</ref><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>x<sp/>=<sp/>0,<sp/>i<sp/>=<sp/>0,<sp/>s<sp/>=<sp/>0;</highlight></codeline>
<codeline lineno="60"><highlight class="normal"></highlight></codeline>
<codeline lineno="61"><highlight class="normal"><sp/><sp/><ref refid="spinlock_8h_12cd9a4502680fb8e7f0fe6b029e558b1" kindref="member">spinLock</ref>(&amp;<ref refid="copyvirtualspace_8c_1d0e5c4817eb928f6db5f6b89bb96d997" kindref="member">cvsSpinLock</ref>);</highlight></codeline>
<codeline lineno="62"><highlight class="normal"><sp/><sp/></highlight></codeline>
<codeline lineno="63"><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="64"><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="65"><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="66"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageDirectory<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_130a38035243b9dfb285b3793788126be" kindref="member">vmmGetFreeKernelPage</ref>(pid,1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="67"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="kpanic_8h_1db9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">&quot;Error:<sp/>newPageDirectory<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n&quot;</highlight><highlight class="normal">,__FILE__,__LINE__);</highlight></codeline>
<codeline lineno="68"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight></codeline>
<codeline lineno="69"><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="70"><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="71"><highlight class="normal"><sp/><sp/></highlight></codeline>
<codeline lineno="72"><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="73"><highlight class="normal"><sp/><sp/><ref refid="lib_2string_8h_1ce4b911463887af5e748326323e99a23" kindref="member">memset</ref>(newPageDirectory,0x0,0<ref refid="ap-boot_8S_1f78b91f02427adef14bb8b28aa93baa5" kindref="member">x1000</ref>);</highlight></codeline>
<codeline lineno="74"><highlight class="normal"></highlight></codeline>
<codeline lineno="75"><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="76"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>768;<sp/>x<sp/>&lt;<sp/><ref refid="paging_8h_1b80d68a13753e40b0df8e0dc0c4af870" kindref="member">pageEntries</ref>;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="77"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageDirectory[x]<sp/>=<sp/>parentPageDirectory[x];</highlight></codeline>
<codeline lineno="78"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="79"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight></codeline>
<codeline lineno="80"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="81"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Now<sp/>For<sp/>The<sp/>Fun<sp/>Stuff<sp/>For<sp/>Page<sp/>Tables<sp/>1-766<sp/>We<sp/>Must<sp/>Map<sp/>These<sp/>And<sp/>Set</highlight></codeline>
<codeline lineno="82"><highlight class="comment"><sp/><sp/><sp/>*<sp/>The<sp/>Permissions<sp/>On<sp/>Every<sp/>Mapped<sp/>Pages<sp/>To<sp/>COW<sp/>This<sp/>Will<sp/>Conserve<sp/>Memory</highlight></codeline>
<codeline lineno="83"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Because<sp/>The<sp/>Two<sp/>VM<sp/>Spaces<sp/>Will<sp/>Be<sp/>Sharing<sp/>Some<sp/>Pages</highlight></codeline>
<codeline lineno="84"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="85"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0<ref refid="ap-boot_8S_11a3ac2137e21f6f0d400f1996914dd19" kindref="member">x1</ref>;<sp/>x<sp/>&lt;=<sp/>766;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="86"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>If<sp/>Page<sp/>Table<sp/>Exists<sp/>Map<sp/>It<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="87"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(parentPageDirectory[x]<sp/>!=<sp/>0)<sp/>{</highlight></codeline>
<codeline lineno="88"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Parent<sp/><sp/>To<sp/>Propper<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="89"><highlight class="normal"><sp/><sp/><sp/><sp/><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><sp/>+<sp/>(0<ref refid="ap-boot_8S_1f78b91f02427adef14bb8b28aa93baa5" kindref="member">x1000</ref><sp/>*<sp/>x));</highlight></codeline>
<codeline lineno="90"><highlight class="normal"><sp/><sp/><sp/><sp/><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="91"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageTable<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_130a38035243b9dfb285b3793788126be" kindref="member">vmmGetFreeKernelPage</ref>(pid,1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="92"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="kpanic_8h_1db9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">&quot;Error:<sp/>newPageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n&quot;</highlight><highlight class="normal">,__FILE__,__LINE__);</highlight></codeline>
<codeline lineno="93"><highlight class="normal"></highlight></codeline>
<codeline lineno="94"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Parent<sp/>And<sp/>New<sp/>Pages<sp/>To<sp/>COW<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="95"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(i<sp/>=<sp/>0;<sp/>i<sp/>&lt;<sp/>pageEntries;<sp/>i++)<sp/>{</highlight></codeline>
<codeline lineno="96"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight></codeline>
<codeline lineno="97"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>If<sp/>Page<sp/>Is<sp/>Mapped<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="98"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((parentPageTable[i]<sp/>&amp;<sp/>0xFFFFF000)<sp/>!=<sp/>0x0)<sp/>{</highlight></codeline>
<codeline lineno="99"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Check<sp/>To<sp/>See<sp/>If<sp/>Its<sp/>A<sp/>Stack<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="100"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>parentPageTable[i]<sp/>&amp;<sp/><ref refid="paging_8h_11532db17068ba8d409b8ffe066414af2" kindref="member">PAGE_STACK</ref>)<sp/>==<sp/>PAGE_STACK)<sp/>{</highlight></codeline>
<codeline lineno="101"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Alloc<sp/>A<sp/>New<sp/>Page<sp/>For<sp/>This<sp/>Stack<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="102"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newStackPage<sp/>=<sp/>(uInt32<sp/>*)<sp/><ref refid="paging_8h_130a38035243b9dfb285b3793788126be" kindref="member">vmmGetFreeKernelPage</ref>(pid,1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="103"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="kpanic_8h_1db9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">&quot;Error:<sp/>newStackPage<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n&quot;</highlight><highlight class="normal">,__FILE__,__LINE__);</highlight></codeline>
<codeline lineno="104"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight></codeline>
<codeline lineno="105"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Pointer<sp/>To<sp/>Parents<sp/>Stack<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="106"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentStackPage<sp/>=<sp/>(uInt32<sp/>*)<sp/>(((1024<sp/>*<sp/>4096)<sp/>*<sp/>x)<sp/>+<sp/>(4096<sp/>*<sp/>i));</highlight></codeline>
<codeline lineno="107"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight></codeline>
<codeline lineno="108"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Copy<sp/>The<sp/>Tack<sp/>Byte<sp/>For<sp/>Byte<sp/>(I<sp/>Should<sp/>Find<sp/>A<sp/>Faster<sp/>Way)<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="109"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(s<sp/>=<sp/>0x0;<sp/>s<sp/>&lt;<sp/>pageEntries;<sp/>s++)<sp/>{</highlight></codeline>
<codeline lineno="110"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newStackPage[s]<sp/>=<sp/>parentStackPage[s];</highlight></codeline>
<codeline lineno="111"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="112"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Insert<sp/>New<sp/>Stack<sp/>Into<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="113"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(<ref refid="paging_8h_1e88bcfc69132a46a1982237913101a5b" kindref="member">vmm_getPhysicalAddr</ref>((uInt32)<sp/>newStackPage)<sp/>|<sp/><ref refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref><sp/>|<sp/>PAGE_STACK);</highlight></codeline>
<codeline lineno="114"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Unmap<sp/>From<sp/>Kernel<sp/>Space<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="115"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" kindref="member">vmmUnmapPage</ref>((uInt32)<sp/>newStackPage,<sp/>1);</highlight></codeline>
<codeline lineno="116"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="117"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="118"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Page<sp/>To<sp/>COW<sp/>In<sp/>Parent<sp/>And<sp/>Child<sp/>Space<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="119"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(((uInt32)<sp/>parentPageTable[i]<sp/>&amp;<sp/>0xFFFFF000)<sp/>|<sp/>(<ref refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref><sp/>|<sp/><ref refid="paging_8h_157d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>));</highlight></codeline>
<codeline lineno="120"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Increment<sp/>The<sp/>COW<sp/>Counter<sp/>For<sp/>This<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="121"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(((uInt32)<sp/>parentPageTable[i]<sp/>&amp;<sp/><ref refid="paging_8h_157d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>==<sp/><ref refid="paging_8h_157d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>{</highlight></codeline>
<codeline lineno="122"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1362d462b3a1e19b5e0ef95e1839dbf11" kindref="member">adjustCowCounter</ref>(((uInt32)<sp/>parentPageTable[i]<sp/>&amp;<sp/>0xFFFFF000),<sp/>1);</highlight></codeline>
<codeline lineno="123"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="124"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="125"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1362d462b3a1e19b5e0ef95e1839dbf11" kindref="member">adjustCowCounter</ref>(((uInt32)<sp/>parentPageTable[i]<sp/>&amp;<sp/>0xFFFFF000),<sp/>2);</highlight></codeline>
<codeline lineno="126"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentPageTable[i]<sp/>=<sp/>newPageTable[i];</highlight></codeline>
<codeline lineno="127"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="128"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="129"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="130"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="131"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>0x0;</highlight></codeline>
<codeline lineno="132"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="133"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="134"><highlight class="normal"></highlight></codeline>
<codeline lineno="135"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Put<sp/>New<sp/>Page<sp/>Table<sp/>Into<sp/>New<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="136"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageDirectory[x]<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="137"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Unmap<sp/>Page<sp/>From<sp/>Kernel<sp/>Space<sp/>But<sp/>Keep<sp/>It<sp/>Marked<sp/>As<sp/>Not<sp/>Avail<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="138"><highlight class="normal"><sp/><sp/><sp/><sp/><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/><sp/><sp/>}<sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="140"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageDirectory[x]<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>0x0;</highlight></codeline>
<codeline lineno="141"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="142"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="143"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="144"><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="145"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Lower<sp/>Region</highlight></codeline>
<codeline lineno="146"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="147"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageTable<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_130a38035243b9dfb285b3793788126be" kindref="member">vmmGetFreeKernelPage</ref>(pid,1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="148"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="kpanic_8h_1db9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">&quot;Error:<sp/>newPageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n&quot;</highlight><highlight class="normal">,__FILE__,__LINE__);</highlight></codeline>
<codeline lineno="149"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight></codeline>
<codeline lineno="150"><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="151"><highlight class="normal"><sp/><sp/><ref refid="lib_2string_8h_1ce4b911463887af5e748326323e99a23" kindref="member">memset</ref>(newPageTable,0x0,0<ref refid="ap-boot_8S_1f78b91f02427adef14bb8b28aa93baa5" kindref="member">x1000</ref>);</highlight></codeline>
<codeline lineno="152"><highlight class="normal"></highlight></codeline>
<codeline lineno="153"><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="154"><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="155"><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="156"><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="157"><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="158"><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="159"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>parentPageTable[x];</highlight></codeline>
<codeline lineno="160"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="161"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>The<sp/>Next<sp/>3MB<sp/>Worth<sp/>Of<sp/>Pages<sp/>But<sp/>Make<sp/>Them<sp/>COW<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="162"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>(pageEntries<sp/>/<sp/>4)<sp/>+<sp/>1;<sp/>x<sp/>&lt;<sp/>pageEntries;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="163"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>If<sp/>Page<sp/>Is<sp/>Avaiable<sp/>Map<sp/>It<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="164"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((parentPageTable[x]<sp/>&amp;<sp/>0xFFFFF000)<sp/>!=<sp/>0x0)<sp/>{</highlight></codeline>
<codeline lineno="165"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Pages<sp/>To<sp/>COW<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="166"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>(((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>parentPageTable[x]<sp/>&amp;<sp/>0xFFFFF000)<sp/>|<sp/>(<ref refid="paging_8h_1f0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref><sp/>|<sp/><ref refid="paging_8h_157d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>));</highlight></codeline>
<codeline lineno="167"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Increment<sp/>The<sp/>COW<sp/>Counter<sp/>For<sp/>This<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="168"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(((<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>parentPageTable[x]<sp/>&amp;<sp/><ref refid="paging_8h_157d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>==<sp/>PAGE_COW)<sp/>{</highlight></codeline>
<codeline lineno="169"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1362d462b3a1e19b5e0ef95e1839dbf11" kindref="member">adjustCowCounter</ref>(((uInt32)<sp/>parentPageTable[x]<sp/>&amp;<sp/>0xFFFFF000),<sp/>1);</highlight></codeline>
<codeline lineno="170"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}<sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="171"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1362d462b3a1e19b5e0ef95e1839dbf11" kindref="member">adjustCowCounter</ref>(((uInt32)<sp/>parentPageTable[x]<sp/>&amp;<sp/>0xFFFFF000),<sp/>2);</highlight></codeline>
<codeline lineno="172"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentPageTable[x]<sp/>=<sp/>newPageTable[x];</highlight></codeline>
<codeline lineno="173"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="174"><highlight class="normal"><sp/><sp/><sp/><sp/>}<sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="175"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref>)<sp/>0x0;</highlight></codeline>
<codeline lineno="176"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="177"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="178"><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="179"><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="180"><highlight class="normal"></highlight></codeline>
<codeline lineno="181"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="182"><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="183"><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="184"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Become<sp/>A<sp/>Security<sp/>Issue</highlight></codeline>
<codeline lineno="185"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="186"><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="187"><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="188"><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="189"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageTable<sp/>=<sp/>(<ref refid="types_8h_15847ea0262a5aa61eee48cbe95544a78" kindref="member">uInt32</ref><sp/>*)<sp/><ref refid="paging_8h_130a38035243b9dfb285b3793788126be" kindref="member">vmmGetFreeKernelPage</ref>(pid,1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="190"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="kpanic_8h_1db9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">&quot;Error:<sp/>newPageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n&quot;</highlight><highlight class="normal">,__FILE__,__LINE__);</highlight></codeline>
<codeline lineno="191"><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="192"><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="193"><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="194"><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="195"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>newPageDirectory[x];</highlight></codeline>
<codeline lineno="196"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="197"><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="198"><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="199"><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="200"><highlight class="normal"><sp/><sp/><ref refid="paging_8h_1fd94da50e455602f86ad7dae2fc9d1db" kindref="member">vmmUnmapPage</ref>((uInt32)<sp/>newPageDirectory,<sp/>1);</highlight></codeline>
<codeline lineno="201"><highlight class="normal"><sp/><sp/></highlight></codeline>
<codeline lineno="202"><highlight class="normal"><sp/><sp/><ref refid="spinlock_8h_1dd996cbbb3b9826dd9c8cf02b66a4c65" kindref="member">spinUnlock</ref>(&amp;<ref refid="copyvirtualspace_8c_1d0e5c4817eb928f6db5f6b89bb96d997" kindref="member">cvsSpinLock</ref>);</highlight></codeline>
<codeline lineno="203"><highlight class="normal"><sp/><sp/></highlight></codeline>
<codeline lineno="204"><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="205"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>(newPageDirectoryAddress);</highlight></codeline>
<codeline lineno="206"><highlight class="normal">}</highlight></codeline>
<codeline lineno="207"><highlight class="normal"></highlight></codeline>
<codeline lineno="208"><highlight class="normal"></highlight><highlight class="comment">/***</highlight></codeline>
<codeline lineno="209"><highlight class="comment"><sp/>$Log: copyvirtualspace_8c.xml,v $
<codeline lineno="209"><highlight class="comment"><sp/>Revision 1.6  2006/12/19 14:12:50  reddawg
<codeline lineno="209"><highlight class="comment"><sp/>rtld-elf almost workign
<codeline lineno="209"><highlight class="comment"><sp/></highlight></codeline>
<codeline lineno="210"><highlight class="comment"><sp/>Revision<sp/>1.4<sp/><sp/>2006/12/05<sp/>14:10:21<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="211"><highlight class="comment"><sp/>Workign<sp/>Distro</highlight></codeline>
<codeline lineno="212"><highlight class="comment"></highlight></codeline>
<codeline lineno="213"><highlight class="comment"><sp/>Revision<sp/>1.3<sp/><sp/>2006/12/01<sp/>05:12:35<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="214"><highlight class="comment"><sp/>We&apos;re<sp/>almost<sp/>there...<sp/>:)</highlight></codeline>
<codeline lineno="215"><highlight class="comment"></highlight></codeline>
<codeline lineno="216"><highlight class="comment"><sp/>Revision<sp/>1.2<sp/><sp/>2006/11/06<sp/>19:10:12<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="217"><highlight class="comment"><sp/>Lots<sp/>Of<sp/>Updates...<sp/>Still<sp/>having<sp/>issues<sp/>with<sp/>brk();</highlight></codeline>
<codeline lineno="218"><highlight class="comment"></highlight></codeline>
<codeline lineno="219"><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="220"><highlight class="comment"><sp/>ubix2</highlight></codeline>
<codeline lineno="221"><highlight class="comment"></highlight></codeline>
<codeline lineno="222"><highlight class="comment"><sp/>Revision<sp/>1.2<sp/><sp/>2005/10/12<sp/>00:13:38<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="223"><highlight class="comment"><sp/>Removed</highlight></codeline>
<codeline lineno="224"><highlight class="comment"></highlight></codeline>
<codeline lineno="225"><highlight class="comment"><sp/>Revision<sp/>1.1.1.1<sp/><sp/>2005/09/26<sp/>17:24:49<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="226"><highlight class="comment"><sp/>no<sp/>message</highlight></codeline>
<codeline lineno="227"><highlight class="comment"></highlight></codeline>
<codeline lineno="228"><highlight class="comment"><sp/>Revision<sp/>1.7<sp/><sp/>2004/07/28<sp/>15:05:43<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="229"><highlight class="comment"><sp/>Major:</highlight></codeline>
<codeline lineno="230"><highlight class="comment"><sp/><sp/><sp/>Pages<sp/>now<sp/>have<sp/>strict<sp/>security<sp/>enforcement.</highlight></codeline>
<codeline lineno="231"><highlight class="comment"><sp/><sp/><sp/>Many<sp/>null<sp/>dereferences<sp/>have<sp/>been<sp/>resolved.</highlight></codeline>
<codeline lineno="232"><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="233"><highlight class="comment"></highlight></codeline>
<codeline lineno="234"><highlight class="comment"><sp/>Revision<sp/>1.6<sp/><sp/>2004/07/26<sp/>19:15:49<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="235"><highlight class="comment"><sp/>test<sp/>code,<sp/>fixes<sp/>and<sp/>the<sp/>like</highlight></codeline>
<codeline lineno="236"><highlight class="comment"></highlight></codeline>
<codeline lineno="237"><highlight class="comment"><sp/>Revision<sp/>1.5<sp/><sp/>2004/07/25<sp/>06:04:00<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="238"><highlight class="comment"><sp/>Last<sp/>of<sp/>my<sp/>fixes<sp/>for<sp/>the<sp/>morning</highlight></codeline>
<codeline lineno="239"><highlight class="comment"></highlight></codeline>
<codeline lineno="240"><highlight class="comment"><sp/>Revision<sp/>1.4<sp/><sp/>2004/07/20<sp/>22:29:55<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="241"><highlight class="comment"><sp/>assert:<sp/>remade<sp/>assert</highlight></codeline>
<codeline lineno="242"><highlight class="comment"></highlight></codeline>
<codeline lineno="243"><highlight class="comment"><sp/>Revision<sp/>1.3<sp/><sp/>2004/07/19<sp/>01:58:12<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="244"><highlight class="comment"><sp/>vmmCopyVirtualSpace:<sp/>cleaned<sp/>up<sp/>one<sp/>full<sp/>page<sp/>memory<sp/>leak<sp/>we<sp/>were<sp/>still<sp/>using<sp/>old<sp/>sysID<sp/>over<sp/>pid</highlight></codeline>
<codeline lineno="245"><highlight class="comment"></highlight></codeline>
<codeline lineno="246"><highlight class="comment"><sp/>Revision<sp/>1.2<sp/><sp/>2004/06/15<sp/>12:35:05<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="247"><highlight class="comment"><sp/>Cleaned<sp/>Up</highlight></codeline>
<codeline lineno="248"><highlight class="comment"></highlight></codeline>
<codeline lineno="249"><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="250"><highlight class="comment"><sp/>UbixOS<sp/>v1.0</highlight></codeline>
<codeline lineno="251"><highlight class="comment"></highlight></codeline>
<codeline lineno="252"><highlight class="comment"><sp/>Revision<sp/>1.14<sp/><sp/>2004/04/13<sp/>16:36:34<sp/><sp/>reddawg</highlight></codeline>
<codeline lineno="253"><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="254"><highlight class="comment"></highlight></codeline>
<codeline lineno="255"><highlight class="comment"><sp/>END</highlight></codeline>
<codeline lineno="256"><highlight class="comment"><sp/>***/</highlight><highlight class="normal"></highlight></codeline>
    </programlisting>
    <location file="/usr/home/reddawg/source/ubix2/src/sys/vmm/copyvirtualspace.c"/>
  </compounddef>
</doxygen>