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<sectiondef kind="func">
<memberdef kind="function" id="vmm__allocpagetable_8c_1ab5107978c7d2053460e2d890e4fd6242" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type>int</type>
<definition>int vmm_allocPageTable</definition>
<argsstring>(uint32_t pdI, pidType pid)</argsstring>
<name>vmm_allocPageTable</name>
<param>
<type><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref></type>
<declname>pdI</declname>
</param>
<param>
<type><ref refid="include_2sys_2types_8h_1ae438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref></type>
<declname>pid</declname>
</param>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="C:/Dev/git/UbixOS/sys/vmm/vmm_allocpagetable.c" line="7" column="5" bodyfile="C:/Dev/git/UbixOS/sys/vmm/vmm_allocpagetable.c" bodystart="7" bodyend="46"/>
<references refid="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" compoundref="gpt_8h" startline="37">bzero</references>
<references refid="paging_8h_1a8b838cda4f0bc79ab8d07eb19dd35420" compoundref="paging_8h" startline="69">KERNEL_PAGE_DEFAULT</references>
<references refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" compoundref="armv6_2kpanic_8c" startline="41" endline="61">kpanic</references>
<references refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" compoundref="paging_8h" startline="68">PAGE_DEFAULT</references>
<references refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" compoundref="paging_8h" startline="55">PAGE_PRESENT</references>
<references refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" compoundref="paging_8h" startline="37">PAGE_SIZE</references>
<references refid="paging_8h_1a1b0f37794d3da1a86f1df77e503ed98f" compoundref="paging_8h" startline="45">PD_BASE_ADDR</references>
<references refid="paging_8h_1a91bd4c1c49996222f571b2f53ca00dc4" compoundref="paging_8h" startline="48">PD_ENTRIES</references>
<references refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" compoundref="paging_8h" startline="40">PD_INDEX</references>
<references refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" compoundref="paging_8h" startline="46">PT_BASE_ADDR</references>
<references refid="vmm_8h_1ab8e4e189a7b1df2a03072ce5b75c89fe" compoundref="vmm__memory_8c" startline="221" endline="252">vmm_findFreePage</references>
<references refid="vmm_8h_1a71bd5e4901787995ae8f9cc3e1a888f9" compoundref="vmm_8h" startline="59">VMM_USER_END</references>
<references refid="vmm_8h_1ad43d15bd90c1980dae3db013c1a5abb0" compoundref="vmm_8h" startline="58">VMM_USER_START</references>
<referencedby refid="paging_8c_1a3615feeeee9f4038cd1070372ccba22e" compoundref="paging_8c" startline="291" endline="346">vmm_getFreeKernelPage</referencedby>
</memberdef>
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<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<programlisting>
<codeline lineno="1"><highlight class="preprocessor">#include<sp/><<ref refid="vmm_8h" kindref="compound">vmm/vmm.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="2"><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="3"><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="4"><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="5"><highlight class="normal"></highlight></codeline>
<codeline lineno="6"><highlight class="normal"></highlight></codeline>
<codeline lineno="7" refid="vmm__allocpagetable_8c_1ab5107978c7d2053460e2d890e4fd6242" refkind="member"><highlight class="normal"></highlight><highlight class="keywordtype">int</highlight><highlight class="normal"><sp/><ref refid="vmm__allocpagetable_8c_1ab5107978c7d2053460e2d890e4fd6242" kindref="member">vmm_allocPageTable</ref>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>pdI,<sp/><ref refid="include_2sys_2types_8h_1ae438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref><sp/>pid)<sp/>{</highlight></codeline>
<codeline lineno="8"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*pageDirectory<sp/>=<sp/><ref refid="paging_8h_1a1b0f37794d3da1a86f1df77e503ed98f" kindref="member">PD_BASE_ADDR</ref>;</highlight></codeline>
<codeline lineno="9"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*pageTable<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="10"><highlight class="normal"></highlight></codeline>
<codeline lineno="11"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((pdI<sp/>>=<sp/><ref refid="paging_8h_1a91bd4c1c49996222f571b2f53ca00dc4" kindref="member">PD_ENTRIES</ref>)<sp/>||<sp/>((pageDirectory[pdI]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>))</highlight></codeline>
<codeline lineno="12"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal">(-1);</highlight></codeline>
<codeline lineno="13"><highlight class="normal"></highlight></codeline>
<codeline lineno="14"><highlight class="normal"></highlight></codeline>
<codeline lineno="15"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Lock<sp/>The<sp/>Page<sp/>Directory<sp/>So<sp/>We<sp/>Dont<sp/>Collide<sp/>With<sp/>Another<sp/>Thread<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="16"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">//spinLock(&pdSpinLock);</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="17"><highlight class="normal"></highlight></codeline>
<codeline lineno="18"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>Page<sp/>Table<sp/>Page<sp/>Into<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="19"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((pdI<sp/>>=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1ad43d15bd90c1980dae3db013c1a5abb0" kindref="member">VMM_USER_START</ref>))<sp/>&&<sp/>(pdI<sp/><=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1a71bd5e4901787995ae8f9cc3e1a888f9" kindref="member">VMM_USER_END</ref>)))</highlight></codeline>
<codeline lineno="20"><highlight class="normal"><sp/><sp/><sp/><sp/>pageDirectory[pdI]<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/><ref refid="vmm_8h_1ab8e4e189a7b1df2a03072ce5b75c89fe" kindref="member">vmm_findFreePage</ref>(pid)<sp/>|<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>;</highlight></codeline>
<codeline lineno="21"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="22"><highlight class="normal"><sp/><sp/><sp/><sp/>pageDirectory[pdI]<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/><ref refid="vmm_8h_1ab8e4e189a7b1df2a03072ce5b75c89fe" kindref="member">vmm_findFreePage</ref>(pid)<sp/>|<sp/><ref refid="paging_8h_1a8b838cda4f0bc79ab8d07eb19dd35420" kindref="member">KERNEL_PAGE_DEFAULT</ref>;</highlight></codeline>
<codeline lineno="23"><highlight class="normal"></highlight></codeline>
<codeline lineno="24"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Map<sp/>Page<sp/>Table<sp/>To<sp/>Virtual<sp/>Space<sp/>So<sp/>We<sp/>Can<sp/>Easily<sp/>Manipulate<sp/>It<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="25"><highlight class="normal"><sp/><sp/>pageTable<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_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<sp/><ref refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" kindref="member">PT_BASE_ADDR</ref><sp/>)<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>));</highlight></codeline>
<codeline lineno="26"><highlight class="normal"></highlight></codeline>
<codeline lineno="27"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((pageTable[pdI]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)</highlight></codeline>
<codeline lineno="28"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"How<sp/>did<sp/>this<sp/>happen"</highlight><highlight class="normal">);</highlight></codeline>
<codeline lineno="29"><highlight class="normal"></highlight></codeline>
<codeline lineno="30"><highlight class="normal"><sp/><sp/>pageTable[pdI]<sp/>=<sp/><sp/>pageDirectory[pdI];</highlight></codeline>
<codeline lineno="31"><highlight class="normal"><sp/><sp/></highlight></codeline>
<codeline lineno="32"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Reload<sp/>Page<sp/>Directory<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="33"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">asm</highlight><highlight class="normal">(</highlight></codeline>
<codeline lineno="34"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="stringliteral">"movl<sp/>%cr3,%eax\n"</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="35"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="stringliteral">"movl<sp/>%eax,%cr3\n"</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="36"><highlight class="normal"><sp/><sp/>);</highlight></codeline>
<codeline lineno="37"><highlight class="normal"></highlight></codeline>
<codeline lineno="38"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Clean<sp/>The<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="39"><highlight class="normal"><sp/><sp/>pageTable<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/>(pdI<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>));</highlight></codeline>
<codeline lineno="40"><highlight class="normal"><sp/><sp/><ref refid="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" kindref="member">bzero</ref>(pageTable,<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="41"><highlight class="normal"></highlight></codeline>
<codeline lineno="42"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">//spinUnlock(&pdSpinLock);</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="43"><highlight class="normal"></highlight></codeline>
<codeline lineno="44"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal">(0x0);</highlight></codeline>
<codeline lineno="45"><highlight class="normal"><sp/><sp/></highlight></codeline>
<codeline lineno="46"><highlight class="normal">}</highlight></codeline>
</programlisting>
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</compounddef>
</doxygen>
