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<type>struct <ref refid="structspinLock" kindref="compound">spinLock</ref></type>
<definition>struct spinLock cvsSpinLock</definition>
<argsstring></argsstring>
<name>cvsSpinLock</name>
<initializer>= <ref refid="spinlock_8h_1a0fe85a4f3642683148b25916d6c5eafd" kindref="member">SPIN_LOCK_INITIALIZER</ref></initializer>
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<type>void *</type>
<definition>void* vmm_copyVirtualSpace</definition>
<argsstring>(pidType pid)</argsstring>
<name>vmm_copyVirtualSpace</name>
<param>
<type><ref refid="include_2sys_2types_8h_1ae438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref></type>
<declname>pid</declname>
</param>
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<references refid="armv6_2spinlock_8c_1a71f03d2ba55111c715b6068254847a53" compoundref="armv6_2spinlock_8c" startline="55" endline="61">spinLock</references>
<referencedby refid="i386_2fork_8c_1a193d99c9f4dbfbfaad8a1ef486582f2d" compoundref="i386_2fork_8c" startline="144" endline="204">fork_copyProcess</referencedby>
<referencedby refid="sysproto__posix_8h_1a2df56a6757909dd205e60732f34acabb" compoundref="i386_2fork_8c" startline="40" endline="131">sys_fork</referencedby>
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<programlisting>
<codeline lineno="1"><highlight class="comment">/*-</highlight></codeline>
<codeline lineno="2"><highlight class="comment"><sp/>*<sp/>Copyright<sp/>(c)<sp/>2002-2018<sp/>The<sp/>UbixOS<sp/>Project.</highlight></codeline>
<codeline lineno="3"><highlight class="comment"><sp/>*<sp/>All<sp/>rights<sp/>reserved.</highlight></codeline>
<codeline lineno="4"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="5"><highlight class="comment"><sp/>*<sp/>This<sp/>was<sp/>developed<sp/>by<sp/>Christopher<sp/>W.<sp/>Olsen<sp/>for<sp/>the<sp/>UbixOS<sp/>Project.</highlight></codeline>
<codeline lineno="6"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="7"><highlight class="comment"><sp/>*<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<sp/>permitted</highlight></codeline>
<codeline lineno="8"><highlight class="comment"><sp/>*<sp/>provided<sp/>that<sp/>the<sp/>following<sp/>conditions<sp/>are<sp/>met:</highlight></codeline>
<codeline lineno="9"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="10"><highlight class="comment"><sp/>*<sp/>1)<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="11"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>conditions,<sp/>the<sp/>following<sp/>disclaimer<sp/>and<sp/>the<sp/>list<sp/>of<sp/>authors.</highlight></codeline>
<codeline lineno="12"><highlight class="comment"><sp/>*<sp/>2)<sp/>Redistributions<sp/>in<sp/>binary<sp/>form<sp/>must<sp/>reproduce<sp/>the<sp/>above<sp/>copyright<sp/>notice,<sp/>this<sp/>list<sp/>of</highlight></codeline>
<codeline lineno="13"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>conditions,<sp/>the<sp/>following<sp/>disclaimer<sp/>and<sp/>the<sp/>list<sp/>of<sp/>authors<sp/>in<sp/>the<sp/>documentation<sp/>and/or</highlight></codeline>
<codeline lineno="14"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>other<sp/>materials<sp/>provided<sp/>with<sp/>the<sp/>distribution.</highlight></codeline>
<codeline lineno="15"><highlight class="comment"><sp/>*<sp/>3)<sp/>Neither<sp/>the<sp/>name<sp/>of<sp/>the<sp/>UbixOS<sp/>Project<sp/>nor<sp/>the<sp/>names<sp/>of<sp/>its<sp/>contributors<sp/>may<sp/>be<sp/>used<sp/>to</highlight></codeline>
<codeline lineno="16"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>endorse<sp/>or<sp/>promote<sp/>products<sp/>derived<sp/>from<sp/>this<sp/>software<sp/>without<sp/>specific<sp/>prior<sp/>written</highlight></codeline>
<codeline lineno="17"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>permission.</highlight></codeline>
<codeline lineno="18"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="19"><highlight class="comment"><sp/>*<sp/>THIS<sp/>SOFTWARE<sp/>IS<sp/>PROVIDED<sp/>BY<sp/>THE<sp/>AUTHOR<sp/>AND<sp/>CONTRIBUTORS<sp/>"AS<sp/>IS"<sp/>AND<sp/>ANY<sp/>EXPRESS<sp/>OR<sp/>IMPLIED</highlight></codeline>
<codeline lineno="20"><highlight class="comment"><sp/>*<sp/>WARRANTIES,<sp/>INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>THE<sp/>IMPLIED<sp/>WARRANTIES<sp/>OF<sp/>MERCHANTABILITY<sp/>AND<sp/>FITNESS</highlight></codeline>
<codeline lineno="21"><highlight class="comment"><sp/>*<sp/>FOR<sp/>A<sp/>PARTICULAR<sp/>PURPOSE<sp/>ARE<sp/>DISCLAIMED.<sp/>IN<sp/>NO<sp/>EVENT<sp/>SHALL<sp/>THE<sp/>COPYRIGHT<sp/>OWNER<sp/>OR<sp/>CONTRIBUTORS</highlight></codeline>
<codeline lineno="22"><highlight class="comment"><sp/>*<sp/>BE<sp/>LIABLE<sp/>FOR<sp/>ANY<sp/>DIRECT,<sp/>INDIRECT,<sp/>INCIDENTAL,<sp/>SPECIAL,<sp/>EXEMPLARY,<sp/>OR<sp/>CONSEQUENTIAL<sp/>DAMAGES</highlight></codeline>
<codeline lineno="23"><highlight class="comment"><sp/>*<sp/>(INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>PROCUREMENT<sp/>OF<sp/>SUBSTITUTE<sp/>GOODS<sp/>OR<sp/>SERVICES;<sp/>LOSS<sp/>OF<sp/>USE,<sp/>DATA,</highlight></codeline>
<codeline lineno="24"><highlight class="comment"><sp/>*<sp/>OR<sp/>PROFITS;<sp/>OR<sp/>BUSINESS<sp/>INTERRUPTION)<sp/>HOWEVER<sp/>CAUSED<sp/>AND<sp/>ON<sp/>ANY<sp/>THEORY<sp/>OF<sp/>LIABILITY,<sp/>WHETHER<sp/>IN</highlight></codeline>
<codeline lineno="25"><highlight class="comment"><sp/>*<sp/>CONTRACT,<sp/>STRICT<sp/>LIABILITY,<sp/>OR<sp/>TORT<sp/>(INCLUDING<sp/>NEGLIGENCE<sp/>OR<sp/>OTHERWISE)<sp/>ARISING<sp/>IN<sp/>ANY<sp/>WAY<sp/>OUT</highlight></codeline>
<codeline lineno="26"><highlight class="comment"><sp/>*<sp/>OF<sp/>THE<sp/>USE<sp/>OF<sp/>THIS<sp/>SOFTWARE,<sp/>EVEN<sp/>IF<sp/>ADVISED<sp/>OF<sp/>THE<sp/>POSSIBILITY<sp/>OF<sp/>SUCH<sp/>DAMAGE.</highlight></codeline>
<codeline lineno="27"><highlight class="comment"><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="28"><highlight class="normal"></highlight></codeline>
<codeline lineno="29"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="vmm_8h" kindref="compound">vmm/vmm.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="30"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="paging_8h" kindref="compound">vmm/paging.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="31"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="kern__sysctl_8h" kindref="compound">sys/kern_sysctl.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="32"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="spinlock_8h" kindref="compound">ubixos/spinlock.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="33"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="kpanic_8h" kindref="compound">ubixos/kpanic.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="34"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="string_8h" kindref="compound">string.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="35"><highlight class="normal"></highlight></codeline>
<codeline lineno="36"><highlight class="normal"></highlight><highlight class="keyword">static</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">struct<sp/></highlight><highlight class="normal"><ref refid="structspinLock" kindref="compound">spinLock</ref><sp/>cvsSpinLock<sp/>=<sp/><ref refid="spinlock_8h_1a0fe85a4f3642683148b25916d6c5eafd" 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"><sp/>Function:<sp/>void<sp/>*vmm_copyVirtualSpace(pidType<sp/>pid);</highlight></codeline>
<codeline lineno="41"><highlight class="comment"></highlight></codeline>
<codeline lineno="42"><highlight class="comment"><sp/>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/>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/>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"><sp/>Notes:</highlight></codeline>
<codeline lineno="47"><highlight class="comment"></highlight></codeline>
<codeline lineno="48"><highlight class="comment"><sp/>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/>Which<sp/>Task<sp/>Has<sp/>Which<sp/>Physical<sp/>Pages</highlight></codeline>
<codeline lineno="50"><highlight class="comment"></highlight></codeline>
<codeline lineno="51" refid="copyvirtualspace_8c_1a1b3ea1ab52e7a30c2d92c6a8124c24b9" refkind="member"><highlight class="comment"><sp/>************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="52"><highlight class="normal"></highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/>*<ref refid="copyvirtualspace_8c_1a1b3ea1ab52e7a30c2d92c6a8124c24b9" kindref="member">vmm_copyVirtualSpace</ref>(<ref refid="include_2sys_2types_8h_1ae438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref><sp/>pid)<sp/>{</highlight></codeline>
<codeline lineno="53"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/>*newPageDirectoryAddress<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="54"><highlight class="normal"></highlight></codeline>
<codeline lineno="55"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*parentPageDirectory<sp/>=<sp/>0x0,<sp/>*newPageDirectory<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="56"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*parentPageTable<sp/>=<sp/>0x0,<sp/>*newPageTable<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="57"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*parentStackPage<sp/>=<sp/>0x0,<sp/>*newStackPage<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="58"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a281b4b5562236420969a830503b0ba19" kindref="member">uint16_t</ref><sp/>x<sp/>=<sp/>0,<sp/>i<sp/>=<sp/>0,<sp/>s<sp/>=<sp/>0;</highlight></codeline>
<codeline lineno="59"><highlight class="normal"></highlight></codeline>
<codeline lineno="60"><highlight class="normal"><sp/><sp/><ref refid="armv6_2spinlock_8c_1a71f03d2ba55111c715b6068254847a53" kindref="member">spinLock</ref>(&cvsSpinLock);</highlight></codeline>
<codeline lineno="61"><highlight class="normal"></highlight></codeline>
<codeline lineno="62"><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="63"><highlight class="normal"><sp/><sp/>parentPageDirectory<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a1b0f37794d3da1a86f1df77e503ed98f" kindref="member">PD_BASE_ADDR</ref>;</highlight></codeline>
<codeline lineno="64"><highlight class="normal"></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="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a3615feeeee9f4038cd1070372ccba22e" kindref="member">vmm_getFreeKernelPage</ref>(pid,<sp/>1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="67"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>newPageDirectory<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="68"><highlight class="normal"></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/>*)<sp/><ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageDirectory);</highlight></codeline>
<codeline lineno="71"><highlight class="normal"></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="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" kindref="member">bzero</ref>(newPageDirectory,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</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/>Kernel<sp/>Code<sp/>Region<sp/>Entries<sp/>0<sp/>&<sp/>1<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="76"><highlight class="normal"><sp/><sp/>newPageDirectory[0]<sp/>=<sp/>parentPageDirectory[0];</highlight></codeline>
<codeline lineno="77"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">//XXX:<sp/>We<sp/>Dont<sp/>Need<sp/>This<sp/>-<sp/>newPageDirectory[1]<sp/>=<sp/>parentPageDirectory[1];</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="78"><highlight class="normal"></highlight></codeline>
<codeline lineno="79"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a3615feeeee9f4038cd1070372ccba22e" kindref="member">vmm_getFreeKernelPage</ref>(pid,<sp/>1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="80"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>newPageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="81"><highlight class="normal"></highlight></codeline>
<codeline lineno="82"><highlight class="normal"><sp/><sp/>parentPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/>(<ref refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" kindref="member">PT_BASE_ADDR</ref><sp/>+<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>1));</highlight></codeline>
<codeline lineno="83"><highlight class="normal"></highlight></codeline>
<codeline lineno="84"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0;<sp/>x<sp/><<sp/><ref refid="paging_8h_1adc9776583e54abf06ae7b99f1f3036a6" kindref="member">PT_ENTRIES</ref>;<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="85"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(((parentPageTable[x])<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="86"><highlight class="normal"></highlight></codeline>
<codeline lineno="87"><highlight class="normal"><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="88"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[x]<sp/>&<sp/>0xFFFFF000)<sp/>|<sp/>(<ref refid="paging_8h_1a8b838cda4f0bc79ab8d07eb19dd35420" kindref="member">KERNEL_PAGE_DEFAULT</ref><sp/>|<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>));</highlight></codeline>
<codeline lineno="89"><highlight class="normal"></highlight></codeline>
<codeline lineno="90"><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="91"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[x]<sp/>&<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>==<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>{</highlight></codeline>
<codeline lineno="92"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1aafef303dc8f2c6ed7bcf171819579166" kindref="member">adjustCowCounter</ref>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[x]<sp/>&<sp/>0xFFFFF000),<sp/>1);</highlight></codeline>
<codeline lineno="93"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="94"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="95"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Add<sp/>Two<sp/>If<sp/>This<sp/>Is<sp/>The<sp/>First<sp/>Time<sp/>Setting<sp/>To<sp/>COW<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="96"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1aafef303dc8f2c6ed7bcf171819579166" kindref="member">adjustCowCounter</ref>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[x]<sp/>&<sp/>0xFFFFF000),<sp/>2);</highlight></codeline>
<codeline lineno="97"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentPageTable[x]<sp/>|=<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>;<sp/></highlight><highlight class="comment">//<sp/>newPageTable[i];</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="98"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="99"><highlight class="normal"></highlight></codeline>
<codeline lineno="100"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="101"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="102"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>parentPageTable[x];</highlight></codeline>
<codeline lineno="103"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="104"><highlight class="normal"></highlight></codeline>
<codeline lineno="105"><highlight class="normal"><sp/><sp/>newPageDirectory[1]<sp/>=<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1a8b838cda4f0bc79ab8d07eb19dd35420" kindref="member">KERNEL_PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="106"><highlight class="normal"></highlight></codeline>
<codeline lineno="107"><highlight class="normal"><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="108"><highlight class="normal"></highlight></codeline>
<codeline lineno="109"><highlight class="normal"><sp/><sp/>newPageTable<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="110"><highlight class="normal"></highlight></codeline>
<codeline lineno="111"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>The<sp/>Kernel<sp/>Memory<sp/>Region<sp/>Entry<sp/>770<sp/>Address<sp/>0xC0800000<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="112"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1ad6394b4f60e68fe4e1431fc4e1998957" kindref="member">VMM_KERN_START</ref>);<sp/>x<sp/><=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1a8204faafc0c27e418f993e07c2f59f14" kindref="member">VMM_KERN_END</ref>);<sp/>x++)</highlight></codeline>
<codeline lineno="113"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageDirectory[x]<sp/>=<sp/>parentPageDirectory[x];</highlight></codeline>
<codeline lineno="114"><highlight class="normal"></highlight></codeline>
<codeline lineno="115"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>The<sp/>Kernel<sp/>Stack<sp/>Region<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/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1afa8fb16552b49cc7929a140f5095b2c0" kindref="member">VMM_KERN_STACK_START</ref>);<sp/>x<sp/><=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1a3e6d5c059fd2ae1f2eb12d55ddab666e" kindref="member">VMM_KERN_STACK_END</ref>);<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="117"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((parentPageDirectory[x]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="118"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Parent<sp/>To<sp/>Propper<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="119"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>parentPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/>(<ref refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" kindref="member">PT_BASE_ADDR</ref><sp/>+<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>x));</highlight></codeline>
<codeline lineno="120"><highlight class="normal"></highlight></codeline>
<codeline lineno="121"><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="122"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a3615feeeee9f4038cd1070372ccba22e" kindref="member">vmm_getFreeKernelPage</ref>(pid,<sp/>1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="123"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>newPageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="124"><highlight class="normal"></highlight></codeline>
<codeline lineno="125"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" kindref="member">bzero</ref>(newPageTable,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="126"><highlight class="normal"></highlight></codeline>
<codeline lineno="127"><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/><<sp/><ref refid="paging_8h_1adc9776583e54abf06ae7b99f1f3036a6" kindref="member">PT_ENTRIES</ref>;<sp/>i++)<sp/>{</highlight></codeline>
<codeline lineno="128"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((parentPageTable[i]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="129"><highlight class="normal"></highlight></codeline>
<codeline lineno="130"><highlight class="normal"><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="131"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newStackPage<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a3615feeeee9f4038cd1070372ccba22e" kindref="member">vmm_getFreeKernelPage</ref>(pid,<sp/>1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="132"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>newStackPage<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="133"><highlight class="normal"></highlight></codeline>
<codeline lineno="134"><highlight class="normal"><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="135"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentStackPage<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/>(((<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/><ref refid="paging_8h_1a91bd4c1c49996222f571b2f53ca00dc4" kindref="member">PD_ENTRIES</ref>)<sp/>*<sp/>x)<sp/>+<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>i));</highlight></codeline>
<codeline lineno="136"><highlight class="normal"></highlight></codeline>
<codeline lineno="137"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Copy<sp/>The<sp/>Stack<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="138"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="string_8h_1ae33b18edb618c656b9b795b9fce2316c" kindref="member">memcpy</ref>(newStackPage,<sp/>parentStackPage,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="139"><highlight class="normal"></highlight></codeline>
<codeline lineno="140"><highlight class="normal"><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="141"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newStackPage)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref><sp/>|<sp/><ref refid="paging_8h_1a1532db17068ba8d409b8ffe066414af2" kindref="member">PAGE_STACK</ref>);</highlight></codeline>
<codeline lineno="142"><highlight class="normal"></highlight></codeline>
<codeline lineno="143"><highlight class="normal"><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="144"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newStackPage,<sp/>1);</highlight></codeline>
<codeline lineno="145"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="146"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="147"><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="148"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageDirectory[x]<sp/>=<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="149"><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="150"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="151"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="152"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="153"><highlight class="normal"></highlight></codeline>
<codeline lineno="154"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="155"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Now<sp/>For<sp/>The<sp/>Fun<sp/>Stuff<sp/>For<sp/>Page<sp/>Tables<sp/>2-767<sp/>We<sp/>Must<sp/>Map<sp/>These<sp/>And<sp/>Set</highlight></codeline>
<codeline lineno="156"><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="157"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Because<sp/>The<sp/>Two<sp/>VM<sp/>Spaces<sp/>Will<sp/>Be<sp/>Sharing<sp/>Pages<sp/>Unless<sp/>an<sp/>EXECVE<sp/>Happens</highlight></codeline>
<codeline lineno="158"><highlight class="comment"><sp/><sp/><sp/>*</highlight></codeline>
<codeline lineno="159"><highlight class="comment"><sp/><sp/><sp/>*<sp/>We<sp/>start<sp/>at<sp/>the<sp/>4MB<sp/>boundary<sp/>as<sp/>the<sp/>first<sp/>4MB<sp/>is<sp/>special</highlight></codeline>
<codeline lineno="160"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="161"><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/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1ad43d15bd90c1980dae3db013c1a5abb0" kindref="member">VMM_USER_START</ref>);<sp/>x<sp/><=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1a71bd5e4901787995ae8f9cc3e1a888f9" kindref="member">VMM_USER_END</ref>);<sp/>x++)<sp/>{</highlight></codeline>
<codeline lineno="163"><highlight class="normal"></highlight></codeline>
<codeline lineno="164"><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="165"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((parentPageDirectory[x]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="166"><highlight class="normal"></highlight></codeline>
<codeline lineno="167"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Parent<sp/>To<sp/>Propper<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="168"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>parentPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/>(<ref refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" kindref="member">PT_BASE_ADDR</ref><sp/>+<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>x));</highlight></codeline>
<codeline lineno="169"><highlight class="normal"></highlight></codeline>
<codeline lineno="170"><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="171"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((newPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a3615feeeee9f4038cd1070372ccba22e" kindref="member">vmm_getFreeKernelPage</ref>(pid,<sp/>1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="172"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>newPageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="173"><highlight class="normal"></highlight></codeline>
<codeline lineno="174"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" kindref="member">bzero</ref>(newPageTable,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="175"><highlight class="normal"></highlight></codeline>
<codeline lineno="176"><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="177"><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/><<sp/><ref refid="paging_8h_1a91bd4c1c49996222f571b2f53ca00dc4" kindref="member">PD_ENTRIES</ref>;<sp/>i++)<sp/>{</highlight></codeline>
<codeline lineno="178"><highlight class="normal"></highlight></codeline>
<codeline lineno="179"><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="180"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((parentPageTable[i]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="181"><highlight class="normal"></highlight></codeline>
<codeline lineno="182"><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="183"><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="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[i]<sp/>&<sp/><ref refid="paging_8h_1a1532db17068ba8d409b8ffe066414af2" kindref="member">PAGE_STACK</ref>)<sp/>==<sp/><ref refid="paging_8h_1a1532db17068ba8d409b8ffe066414af2" kindref="member">PAGE_STACK</ref>)<sp/>{</highlight></codeline>
<codeline lineno="184"><highlight class="normal"></highlight></codeline>
<codeline lineno="185"><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="186"><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/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a3615feeeee9f4038cd1070372ccba22e" kindref="member">vmm_getFreeKernelPage</ref>(pid,<sp/>1))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="187"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>newStackPage<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="188"><highlight class="normal"></highlight></codeline>
<codeline lineno="189"><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="190"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentStackPage<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/>(((<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/><ref refid="paging_8h_1a91bd4c1c49996222f571b2f53ca00dc4" kindref="member">PD_ENTRIES</ref>)<sp/>*<sp/>x)<sp/>+<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>i));</highlight></codeline>
<codeline lineno="191"><highlight class="normal"></highlight></codeline>
<codeline lineno="192"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Copy<sp/>The<sp/>Stack<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="193"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="string_8h_1ae33b18edb618c656b9b795b9fce2316c" kindref="member">memcpy</ref>(newStackPage,<sp/>parentStackPage,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="194"><highlight class="normal"></highlight></codeline>
<codeline lineno="195"><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="196"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newStackPage)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref><sp/>|<sp/><ref refid="paging_8h_1a1532db17068ba8d409b8ffe066414af2" kindref="member">PAGE_STACK</ref>);</highlight></codeline>
<codeline lineno="197"><highlight class="normal"></highlight></codeline>
<codeline lineno="198"><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="199"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newStackPage,<sp/>1);</highlight></codeline>
<codeline lineno="200"><highlight class="normal"></highlight></codeline>
<codeline lineno="201"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="202"><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="203"><highlight class="normal"></highlight></codeline>
<codeline lineno="204"><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="205"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[i]<sp/>&<sp/>0xFFFFF000)<sp/>|<sp/>(<ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref><sp/>|<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>));</highlight></codeline>
<codeline lineno="206"><highlight class="normal"></highlight></codeline>
<codeline lineno="207"><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="208"><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/>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[i]<sp/>&<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>==<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>{</highlight></codeline>
<codeline lineno="209"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1aafef303dc8f2c6ed7bcf171819579166" kindref="member">adjustCowCounter</ref>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[i]<sp/>&<sp/>0xFFFFF000),<sp/>1);</highlight></codeline>
<codeline lineno="210"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="211"><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="212"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Add<sp/>Two<sp/>If<sp/>This<sp/>Is<sp/>The<sp/>First<sp/>Time<sp/>Setting<sp/>To<sp/>COW<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="213"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1aafef303dc8f2c6ed7bcf171819579166" kindref="member">adjustCowCounter</ref>(((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>parentPageTable[i]<sp/>&<sp/>0xFFFFF000),<sp/>2);</highlight></codeline>
<codeline lineno="214"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>parentPageTable[i]<sp/>|=<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>;<sp/></highlight><highlight class="comment">//<sp/>newPageTable[i];</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="215"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="216"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="217"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="218"><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="219"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>newPageTable[i]<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>0x0;</highlight></codeline>
<codeline lineno="220"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="221"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="222"><highlight class="normal"></highlight></codeline>
<codeline lineno="223"><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="224"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>newPageDirectory[x]<sp/>=<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="225"><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="226"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="227"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="228"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="229"><highlight class="normal"></highlight></codeline>
<codeline lineno="230"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="231"><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="232"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Lower<sp/>Region<sp/>First<sp/>4MB</highlight></codeline>
<codeline lineno="233"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="234"><highlight class="normal"></highlight></codeline>
<codeline lineno="235"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="236"><highlight class="comment"><sp/><sp/><sp/>*</highlight></codeline>
<codeline lineno="237"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Map<sp/>Page<sp/>Directory<sp/>Into<sp/>VM<sp/>Space</highlight></codeline>
<codeline lineno="238"><highlight class="comment"><sp/><sp/><sp/>*<sp/>First<sp/>Page<sp/>After<sp/>Page<sp/>Tables</highlight></codeline>
<codeline lineno="239"><highlight class="comment"><sp/><sp/><sp/>*<sp/>This<sp/>must<sp/>be<sp/>mapped<sp/>into<sp/>the<sp/>page<sp/>directory<sp/>before<sp/>we<sp/>map<sp/>all<sp/>1024<sp/>page<sp/>directories<sp/>into<sp/>the<sp/>memory<sp/>space</highlight></codeline>
<codeline lineno="240"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="241"><highlight class="normal"><sp/><sp/>newPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a7035c695cbbae5799ecc1f9bcab7dd48" kindref="member">vmm_getFreePage</ref>(pid);</highlight></codeline>
<codeline lineno="242"><highlight class="normal"></highlight></codeline>
<codeline lineno="243"><highlight class="normal"><sp/><sp/>newPageDirectory[<ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="paging_8h_1a1b0f37794d3da1a86f1df77e503ed98f" kindref="member">PD_BASE_ADDR</ref>)]<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="244"><highlight class="normal"></highlight></codeline>
<codeline lineno="245"><highlight class="normal"><sp/><sp/>newPageTable[0]<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>(newPageDirectoryAddress)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="246"><highlight class="normal"></highlight></codeline>
<codeline lineno="247"><highlight class="normal"><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="248"><highlight class="normal"></highlight></codeline>
<codeline lineno="249"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*</highlight></codeline>
<codeline lineno="250"><highlight class="comment"><sp/><sp/><sp/>*</highlight></codeline>
<codeline lineno="251"><highlight class="comment"><sp/><sp/><sp/>*<sp/>Map<sp/>Page<sp/>Tables<sp/>Into<sp/>VM<sp/>Space</highlight></codeline>
<codeline lineno="252"><highlight class="comment"><sp/><sp/><sp/>*<sp/>The<sp/>First<sp/>Page<sp/>Table<sp/>(4MB)<sp/>Maps<sp/>To<sp/>All<sp/>Page<sp/>Directories</highlight></codeline>
<codeline lineno="253"><highlight class="comment"><sp/><sp/><sp/>*</highlight></codeline>
<codeline lineno="254"><highlight class="comment"><sp/><sp/><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="255"><highlight class="normal"></highlight></codeline>
<codeline lineno="256"><highlight class="normal"><sp/><sp/>newPageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a7035c695cbbae5799ecc1f9bcab7dd48" kindref="member">vmm_getFreePage</ref>(pid);</highlight></codeline>
<codeline lineno="257"><highlight class="normal"></highlight></codeline>
<codeline lineno="258"><highlight class="normal"><sp/><sp/>newPageDirectory[<ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" kindref="member">PT_BASE_ADDR</ref>)]<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>(<ref refid="paging_8h_1a5522eccf81d4630537620209651be16e" kindref="member">vmm_getPhysicalAddr</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>);</highlight></codeline>
<codeline lineno="259"><highlight class="normal"></highlight></codeline>
<codeline lineno="260"><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="261"><highlight class="normal"><sp/><sp/><ref refid="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" kindref="member">bzero</ref>(newPageTable,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="262"><highlight class="normal"></highlight></codeline>
<codeline lineno="263"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(x<sp/>=<sp/>0;<sp/>x<sp/><<sp/><ref refid="paging_8h_1a91bd4c1c49996222f571b2f53ca00dc4" kindref="member">PD_ENTRIES</ref>;<sp/>x++)</highlight></codeline>
<codeline lineno="264"><highlight class="normal"><sp/><sp/><sp/><sp/>newPageTable[x]<sp/>=<sp/>newPageDirectory[x];</highlight></codeline>
<codeline lineno="265"><highlight class="normal"></highlight></codeline>
<codeline lineno="266"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Unmap<sp/>Page<sp/>From<sp/>Virtual<sp/>Space<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="267"><highlight class="normal"><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageTable,<sp/>1);</highlight></codeline>
<codeline lineno="268"><highlight class="normal"></highlight></codeline>
<codeline lineno="269"><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="270"><highlight class="normal"><sp/><sp/><ref refid="vmm_8h_1a457446966aafafd939af6603f68516b1" kindref="member">vmm_unmapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>newPageDirectory,<sp/>1);</highlight></codeline>
<codeline lineno="271"><highlight class="normal"></highlight></codeline>
<codeline lineno="272"><highlight class="normal"><sp/><sp/><ref refid="armv6_2spinlock_8c_1ae29ab191c93f9ead066cb462dd2e7247" kindref="member">spinUnlock</ref>(&cvsSpinLock);</highlight></codeline>
<codeline lineno="273"><highlight class="normal"></highlight></codeline>
<codeline lineno="274"><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="275"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>(newPageDirectoryAddress);</highlight></codeline>
<codeline lineno="276"><highlight class="normal">}</highlight></codeline>
</programlisting>
<location file="C:/Dev/git/UbixOS/sys/vmm/copyvirtualspace.c"/>
</compounddef>
</doxygen>
