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<memberdef kind="function" id="setpageattributes_8c_1a7900e6837133f7d21ac4d2152afb1d63" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type>int</type>
<definition>int vmm_setPageAttributes</definition>
<argsstring>(uint32_t memAddr, uint16_t attributes)</argsstring>
<name>vmm_setPageAttributes</name>
<param>
<type><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref></type>
<declname>memAddr</declname>
</param>
<param>
<type><ref refid="include_2sys_2types_8h_1a281b4b5562236420969a830503b0ba19" kindref="member">uint16_t</ref></type>
<declname>attributes</declname>
</param>
<briefdescription>
</briefdescription>
<detaileddescription>
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<references refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" compoundref="armv6_2kpanic_8c" startline="41" endline="61">kpanic</references>
<references refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" compoundref="paging_8h" startline="46">PT_BASE_ADDR</references>
<referencedby refid="kernel_2elf_8c_1aaf5f82fbbff76c71fcefe513c40730b4" compoundref="kernel_2elf_8c" startline="37" endline="137">elf_load_file</referencedby>
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<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="kpanic_8h" kindref="compound">ubixos/kpanic.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="31"><highlight class="normal"></highlight></codeline>
<codeline lineno="32"><highlight class="normal"></highlight><highlight class="comment">/************************************************************************</highlight></codeline>
<codeline lineno="33"><highlight class="comment"></highlight></codeline>
<codeline lineno="34"><highlight class="comment"><sp/>Function:<sp/>void<sp/>vmm_setPageAttributes(uInt32<sp/>pageAddr,int<sp/>attributes;</highlight></codeline>
<codeline lineno="35"><highlight class="comment"><sp/>Description:<sp/>This<sp/>Function<sp/>Will<sp/>Set<sp/>The<sp/>Page<sp/>Attributes<sp/>Such<sp/>As</highlight></codeline>
<codeline lineno="36"><highlight class="comment"><sp/>A<sp/>Read<sp/>Only<sp/>Page,<sp/>Stack<sp/>Page,<sp/>COW<sp/>Page,<sp/>ETC.</highlight></codeline>
<codeline lineno="37"><highlight class="comment"><sp/>Notes:</highlight></codeline>
<codeline lineno="38"><highlight class="comment"></highlight></codeline>
<codeline lineno="39" refid="setpageattributes_8c_1a7900e6837133f7d21ac4d2152afb1d63" refkind="member"><highlight class="comment"><sp/>************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="40"><highlight class="normal"></highlight><highlight class="keywordtype">int</highlight><highlight class="normal"><sp/><ref refid="setpageattributes_8c_1a7900e6837133f7d21ac4d2152afb1d63" kindref="member">vmm_setPageAttributes</ref>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>memAddr,<sp/><ref refid="include_2sys_2types_8h_1a281b4b5562236420969a830503b0ba19" kindref="member">uint16_t</ref><sp/>attributes)<sp/>{</highlight></codeline>
<codeline lineno="41"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a281b4b5562236420969a830503b0ba19" kindref="member">uint16_t</ref><sp/>directoryIndex<sp/>=<sp/>0x0,<sp/>tableIndex<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="42"><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="43"><highlight class="normal"></highlight></codeline>
<codeline lineno="44"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Calculate<sp/>The<sp/>Page<sp/>Directory<sp/>Index<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="45"><highlight class="normal"><sp/><sp/>directoryIndex<sp/>=<sp/>(memAddr<sp/>>><sp/>22);</highlight></codeline>
<codeline lineno="46"><highlight class="normal"></highlight></codeline>
<codeline lineno="47"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Calculate<sp/>The<sp/>Page<sp/>Table<sp/>Index<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="48"><highlight class="normal"><sp/><sp/>tableIndex<sp/>=<sp/>((memAddr<sp/>>><sp/>12)<sp/>&<sp/>0x3FF);</highlight></codeline>
<codeline lineno="49"><highlight class="normal"></highlight></codeline>
<codeline lineno="50"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Table<sp/>Pointer<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="51"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><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/>(0x1000<sp/>*<sp/>directoryIndex)))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="52"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Error:<sp/>pageTable<sp/>==<sp/>NULL,<sp/>File:<sp/>%s,<sp/>Line:<sp/>%i\n"</highlight><highlight class="normal">,<sp/>__FILE__,<sp/>__LINE__);</highlight></codeline>
<codeline lineno="53"><highlight class="normal"></highlight></codeline>
<codeline lineno="54"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Set<sp/>Attribute<sp/>If<sp/>Page<sp/>Is<sp/>Mapped<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="55"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(pageTable[tableIndex]<sp/>!=<sp/>0x0)</highlight></codeline>
<codeline lineno="56"><highlight class="normal"><sp/><sp/><sp/><sp/>pageTable[tableIndex]<sp/>=<sp/>((pageTable[tableIndex]<sp/>&<sp/>0xFFFFF000)<sp/>|<sp/>attributes);</highlight></codeline>
<codeline lineno="57"><highlight class="normal"></highlight></codeline>
<codeline lineno="58"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Reload<sp/>The<sp/>Page<sp/>Table;<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="59"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">asm</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">volatile</highlight><highlight class="normal">(</highlight></codeline>
<codeline lineno="60"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="stringliteral">"push<sp/>%eax<sp/><sp/><sp/><sp/><sp/>\n"</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="61"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="stringliteral">"movl<sp/>%cr3,%eax\n"</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="62"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="stringliteral">"movl<sp/>%eax,%cr3\n"</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="63"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="stringliteral">"pop<sp/><sp/>%eax<sp/><sp/><sp/><sp/><sp/>\n"</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="64"><highlight class="normal"><sp/><sp/>);</highlight></codeline>
<codeline lineno="65"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Return<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="66"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>(0x0);</highlight></codeline>
<codeline lineno="67"><highlight class="normal">}</highlight></codeline>
</programlisting>
<location file="C:/Dev/git/UbixOS/sys/vmm/setpageattributes.c"/>
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