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<a href="paging_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This was developed by Christopher W. Olsen for the UbixOS Project.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * provided that the following conditions are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1) Redistributions of source code must retain the above copyright notice, this list of</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * conditions, the following disclaimer and the list of authors.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2) Redistributions in binary form must reproduce the above copyright notice, this list of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * conditions, the following disclaimer and the list of authors in the documentation and/or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * endorse or promote products derived from this software without specific prior written</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * permission.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="include_2sys_2types_8h.html">sys/types.h</a>></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="vmm_8h.html">vmm/vmm.h</a>></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="kmalloc_8h.html">lib/kmalloc.h</a>></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="kpanic_8h.html">ubixos/kpanic.h</a>></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="sched_8h.html">ubixos/sched.h</a>></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="spinlock_8h.html">ubixos/spinlock.h</a>></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="string_8h.html">string.h</a>></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="assert_8h.html">assert.h</a>></span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="descrip_8h.html">sys/descrip.h</a>></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="vitals_8h.html">ubixos/vitals.h</a>></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  </div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923"> 41</a></span> <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a> = 0x0; <span class="comment">// Pointer To Kernel Page Directory</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structspinLock.html">spinLock</a> fkpSpinLock = <a class="code" href="spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structspinLock.html">spinLock</a> rmpSpinLock = <a class="code" href="spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">/*****************************************************************************************</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> Function: int vmm_pagingInit();</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"></span> </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> Description: This Function Will Initialize The Operating Systems Paging</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> Abilities.</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"></span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> Notes:</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> 02/20/2004 - Looked Over Code And Have Approved Its Quality</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> 07/28/3004 - All pages are set for ring-0 only no more user accessable</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"></span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> *****************************************************************************************/</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="paging_8c.html#af47a45e3f0802f5aac053808127aaaf1"> 58</a></span>  </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">int</span> <a class="code" href="paging_8c.html#af47a45e3f0802f5aac053808127aaaf1">vmm_pagingInit</a>() {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> i = 0x0;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageTable = 0x0;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">/* Allocate A Page Of Memory For Kernels Page Directory */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a> = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a> == 0x0) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Error: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  } <span class="comment">/* end if */</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">/* Clear The Memory To Ensure There Is No Garbage */</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>(<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>, <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">/* Allocate a page for the first 4MB of memory */</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> ((pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)) == 0x0)</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Error: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">/* Make Sure The Page Table Is Clean */</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>(pageTable, <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[0] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (pageTable) | <a class="code" href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> * Map the first 1MB of Memory to the kernel MM space because our kernel starts</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> * at 0x30000</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * Do not map page at address 0x0 this is reserved for null...</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">/* MrOlsen (2016-01-15) NOTE: I'm Mapping It For Now Until I Can Figure Out Why FS:0x0 */</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">for</span> (i = 0x0; i < (<a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a> / 0x4); i++) {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  pageTable[i] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((i * 0x1000) | <a class="code" href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>); <span class="comment">//FIXME: This is temp becauseo f bios callKERNEL_PAGE_DEFAULT); //MrOlsen 2018-01-14 PAGE_DEFAULT</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  } <span class="comment">/* end for */</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">/* Allocate a page for the second 4MB of memory */</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> ((pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)) == 0x0)</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Error: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">/* Make Sure The Page Table Is Clean */</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>(pageTable, <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[1] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (pageTable) | <a class="code" href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * Create page tables for the top 1GB of VM space. This space is set aside</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * for kernel space and will be shared with each process</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">for</span> (i = <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#ad6394b4f60e68fe4e1431fc4e1998957">VMM_KERN_START</a>); i <= <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#a8204faafc0c27e418f993e07c2f59f14">VMM_KERN_END</a>); i++) {</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> ((pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)) == 0x0)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Error: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">/* Make Sure The Page Table Is Clean */</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>(pageTable, <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">/* Map In The Page Directory */</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[i] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (pageTable) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a> | <a class="code" href="paging_8h.html#a0d99c75e51b448fcb97266da4815c63f">PAGE_GLOBAL</a>);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  } <span class="comment">/* end for */</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[1023] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (pageTable) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[1023] & 0xFFFFF000);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  pageTable[1023] = (<a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>(<a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a> | <a class="code" href="paging_8h.html#a1532db17068ba8d409b8ffe066414af2">PAGE_STACK</a>);</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  pageTable[1022] = (<a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>(<a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a> | <a class="code" href="paging_8h.html#a1532db17068ba8d409b8ffe066414af2">PAGE_STACK</a>);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> * Map Page Tables Into VM Space</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> * The First Page Table (4MB) Maps To All Page Directories</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[<a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a>)] == 0) {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> ((pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)) == 0x0)</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Error: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>(pageTable, <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[<a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a>)] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (pageTable) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>);</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[<a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a>)] & 0xFFFFF000);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a>; i++) {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  pageTable[i] = <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[i];</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  } <span class="comment">/* end for */</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  </div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * Map Page Directory Into VM Space</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> * First Page After Page Tables</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[<a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>)] == 0) {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> ((pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)) == 0x0)</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Error: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a>(pageTable, <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[<a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>)] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (pageTable) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>[<a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>)] & 0xFFFFF000);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  pageTable[0] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>) | <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">/* Allocate New Stack Space */</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> ((pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>(<a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)) == 0x0)</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"ERROR: vmm_findFreePage Failed"</span>);</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">/* Now Lets Turn On Paging With This Initial Page Table */</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">asm</span> <span class="keyword">volatile</span>(</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="stringliteral">"movl %0,%%eax \n"</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="stringliteral">"movl %%eax,%%cr3 \n"</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="stringliteral">"movl %%cr0,%%eax \n"</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="stringliteral">"orl $0x80010000,%%eax \n"</span> <span class="comment">/* Turn on memory protection */</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="stringliteral">"movl %%eax,%%cr0 \n"</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  :</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  : <span class="stringliteral">"d"</span>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>))</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  );</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">/* Remap The Memory List */</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">for</span> (i = <a class="code" href="vmm_8h.html#a1e10465731ac6cbfc253ce7d89ae34c8">VMM_MMAP_ADDR_RMODE</a>; i <= (0x101000 + (<a class="code" href="vmm_8h.html#a2b0091bdc36e32af3daf9cfcaa7c04e1">numPages</a> * <span class="keyword">sizeof</span>(<a class="code" href="structmMap.html">mMap</a>))); i += 0x1000) {</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> ((<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(i, (<a class="code" href="vmm_8h.html#aa015f84b2a9b7588c472ff5dc99646f6">VMM_MMAP_ADDR_PMODE</a> + (i - 0x101000)), <a class="code" href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>, <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>, 0)) == 0x0)</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"vmmRemapPage failed\n"</span>);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">/* Set New Address For Memory Map Since Its Relocation */</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a class="code" href="vmm_8h.html#a89e87741958ee81f1811075b25af058a">vmmMemoryMap</a> = (<a class="code" href="structmMap.html">mMap</a> *) <a class="code" href="vmm_8h.html#aa015f84b2a9b7588c472ff5dc99646f6">VMM_MMAP_ADDR_PMODE</a>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">/* Print information on paging */</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"paging0 - Address: [0x%X], PagingISR Address: [0x%X]\n"</span>, <a class="code" href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a>, &<a class="code" href="paging_8h.html#a15b43ccb21abdb9e0a41acb82b260a99">_vmm_pageFault</a>);</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  </div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">/* Return so we know everything went well */</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> } <span class="comment">/* END */</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">/*****************************************************************************************</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> Function: int vmmRemapPage(Physical Source,Virtual Destination)</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"></span> </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> Description: This Function Will Remap A Physical Page Into Virtual Space</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"></span> </div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> Notes:</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> 07/29/02 - Rewrote This To Work With Our New Paging System</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> 07/30/02 - Changed Address Of Page Tables And Page Directory</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> 07/28/04 - If perms == 0x0 set to PAGE_DEFAULT</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796"> 199</a></span> <span class="comment"></span> </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> *****************************************************************************************/</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="keywordtype">int</span> <a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> source, <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> dest, <a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> perms, <a class="code" href="include_2sys_2types_8h.html#ae438ba74394b14d7b24b6df3b3b8c252">pidType</a> pid, <span class="keywordtype">int</span> haveLock) {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> destPageDirectoryIndex = 0x0, destPageTableIndex = 0x0;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageDir = 0x0, *pageTable = 0x0;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">short</span> i = 0x0;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (pid < <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>)</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <a class="code" href="armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"Invalid PID %i"</span>, pid);</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (source == 0x0)</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"source == 0x0"</span>);</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  </div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">if</span> (dest == 0x0)</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"dest == 0x0"</span>);</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (haveLock == 0) {</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">if</span> (dest >= <a class="code" href="vmm_8h.html#ad43d15bd90c1980dae3db013c1a5abb0">VMM_USER_START</a> && dest <= <a class="code" href="vmm_8h.html#a71bd5e4901787995ae8f9cc3e1a888f9">VMM_USER_END</a>)</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&rmpSpinLock);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <a class="code" href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&<a class="code" href="vmm_8h.html#afcaabe90527f6aec9cfeaaba78500e4c">pdSpinLock</a>);</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">if</span> (perms == 0x0)</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  perms = <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">/* Set Pointer pageDirectory To Point To The Virtual Mapping Of The Page Directory */</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  pageDir = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">/* Get Index Into The Page Directory */</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  destPageDirectoryIndex = <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(dest);</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">if</span> ((pageDir[destPageDirectoryIndex] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) != <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">//kprintf("[NpdI:0x%X]", destPageDirectoryIndex);</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="vmm_8h.html#acba8d9cc298370338bc5bea5187183b2">vmm_allocPageTable</a>(destPageDirectoryIndex, pid);</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">/* Set Address To Page Table */</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a> + (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * destPageDirectoryIndex));</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  </div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">/* Get The Index To The Page Table */</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  destPageTableIndex = <a class="code" href="paging_8h.html#a2c6e29890bb0209384b6d012db48e2f7">PT_INDEX</a>(dest);</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  </div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">/* If The Page Is Mapped In Free It Before We Remap */</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">if</span> ((pageTable[destPageTableIndex] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <a class="code" href="armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"A Page Is Already Mapped Here: 0x%X:0x%X"</span>, dest, destPageTableIndex);</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  </div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> ((pageTable[destPageTableIndex] & <a class="code" href="paging_8h.html#a1532db17068ba8d409b8ffe066414af2">PAGE_STACK</a>) == <a class="code" href="paging_8h.html#a1532db17068ba8d409b8ffe066414af2">PAGE_STACK</a>)</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"Stack Page: [0x%X]\n"</span>, dest);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  </div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">if</span> ((pageTable[destPageTableIndex] & <a class="code" href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>) != <a class="code" href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>) {</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"Page NOT COW\n"</span>);</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"Page Present: [0x%X][0x%X]"</span>, dest, pageTable[destPageTableIndex]);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  source = 0x0;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">goto</span> rmDone;</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="comment">/* Clear The Page First For Security Reasons */</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <a class="code" href="vmm_8h.html#a38c3fe6ce5f3bf8af4a0631d4c41b0ba">freePage</a>(((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) pageTable[destPageTableIndex] & 0xFFFFF000));</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  }</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">/* Set The Source Address In The Destination */</span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  pageTable[destPageTableIndex] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (source | perms);</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">/* Reload The Page Table; */</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  rmDone: <span class="keyword">asm</span> <span class="keyword">volatile</span>(</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="stringliteral">"push %eax \n"</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="stringliteral">"movl %cr3,%eax\n"</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="stringliteral">"movl %eax,%cr3\n"</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="stringliteral">"pop %eax \n"</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  );</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">/* Return */</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">if</span> (haveLock == 0x0) {</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">if</span> (dest >= <a class="code" href="vmm_8h.html#ad43d15bd90c1980dae3db013c1a5abb0">VMM_USER_START</a> && dest <= <a class="code" href="vmm_8h.html#a71bd5e4901787995ae8f9cc3e1a888f9">VMM_USER_END</a>)</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&rmpSpinLock);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&<a class="code" href="vmm_8h.html#afcaabe90527f6aec9cfeaaba78500e4c">pdSpinLock</a>);</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">return</span> (source);</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> }</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  </div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment">/************************************************************************</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"></span> </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> Function: void *vmm_getFreeKernelPage(pidType pid, uint16_t count);</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> Description: Returns A Free Page Mapped To The VM Space</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> Notes:</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"></span> </div>
<div class="line"><a name="l00291"></a><span class="lineno"><a class="line" href="paging_8c.html#a3615feeeee9f4038cd1070372ccba22e"> 291</a></span> <span class="comment"> 07/30/02 - This Returns A Free Page In The Kernel Space</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"></span> </div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"> ***********************************************************************/</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="keywordtype">void</span> *<a class="code" href="paging_8c.html#a3615feeeee9f4038cd1070372ccba22e">vmm_getFreeKernelPage</a>(<a class="code" href="include_2sys_2types_8h.html#ae438ba74394b14d7b24b6df3b3b8c252">pidType</a> pid, <a class="code" href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a> count) {</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordtype">int</span> pdI = 0x0, ptI = 0x0, c = 0, lc = 0;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  </div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageDirectory = <a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>;</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  </div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageTable = 0x0;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  </div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> startAddress = 0x0;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">/* Lock The Page Dir & Tables For All Since Kernel Space Is Shared */</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <a class="code" href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&<a class="code" href="vmm_8h.html#afcaabe90527f6aec9cfeaaba78500e4c">pdSpinLock</a>);</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  </div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">/* Lets Search For A Free Page */</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">for</span> (pdI = <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#ad6394b4f60e68fe4e1431fc4e1998957">VMM_KERN_START</a>); pdI <= <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#a8204faafc0c27e418f993e07c2f59f14">VMM_KERN_END</a>); pdI++) {</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  </div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">if</span> ((pageDirectory[pdI] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) != <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>)</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">if</span> (<a class="code" href="vmm_8h.html#acba8d9cc298370338bc5bea5187183b2">vmm_allocPageTable</a>(pdI, pid) == -1)</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <a class="code" href="armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"Failed To Allocate Page Dir: 0x%X"</span>, pdI);</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  </div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">/* Set Page Table Address */</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  pageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a> + (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * pdI));</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  </div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">/* Loop Through The Page Table For A Free Page */</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">for</span> (ptI = 0; ptI < <a class="code" href="paging_8h.html#adc9776583e54abf06ae7b99f1f3036a6">PT_ENTRIES</a>; ptI++) {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  </div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">/* Check For Unalocated Page */</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">if</span> ((pageTable[ptI] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) != <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordflow">if</span> (startAddress == 0x0)</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  startAddress = ((pdI * (<a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a> * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>)) + (ptI * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>));</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  c++;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  startAddress = 0x0;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  c = 0;</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">if</span> (c == count)</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">goto</span> gotPages;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  }</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  startAddress = 0x0;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">goto</span> noPagesAvail;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  </div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  gotPages: <span class="keywordflow">for</span> (c = 0; c < count; c++) {</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> ((<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>(pid), (startAddress + (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * c)), <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, pid, 1)) == 0x0)</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"vmmRemapPage failed: gfkp-1\n"</span>);</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <a class="code" href="paging_8c.html#a8350aa43ff69829ba667ca34d9bcaa7a">vmm_clearVirtualPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) (startAddress + (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * c)));</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  </div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  </div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  noPagesAvail: <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&<a class="code" href="vmm_8h.html#afcaabe90527f6aec9cfeaaba78500e4c">pdSpinLock</a>);</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  </div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">return</span> (startAddress);</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> }</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> <span class="comment">/************************************************************************</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="comment"></span> </div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="comment"> Function: void vmm_clearVirtualPage(uint32_t pageAddr);</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="comment"></span> </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="comment"> Description: This Will Null Out A Page Of Memory</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"><a class="line" href="paging_8c.html#a8350aa43ff69829ba667ca34d9bcaa7a"> 356</a></span> <span class="comment"></span> </div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment"> Notes:</span></div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"></span> </div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment"> ************************************************************************/</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="keywordtype">int</span> <a class="code" href="paging_8c.html#a8350aa43ff69829ba667ca34d9bcaa7a">vmm_clearVirtualPage</a>(<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> pageAddr) {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *src = 0x0;</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordtype">int</span> counter = 0x0;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">/* Set Source Pointer To Virtual Page Address */</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  src = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) pageAddr;</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  </div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">/* Clear Out The Page */</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">for</span> (counter = 0x0; counter < <a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a>; counter++) {</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  src[counter] = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) 0x0;</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  }</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  </div>
<div class="line"><a name="l00372"></a><span class="lineno"><a class="line" href="paging_8c.html#a6aca027c65f91943e6bc46ab9542c086"> 372</a></span>  <span class="comment">/* Return */</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> }</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  </div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="keywordtype">void</span> *<a class="code" href="paging_8c.html#a6aca027c65f91943e6bc46ab9542c086">vmm_mapFromTask</a>(<a class="code" href="include_2sys_2types_8h.html#ae438ba74394b14d7b24b6df3b3b8c252">pidType</a> pid, <span class="keywordtype">void</span> *ptr, <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> size) {</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="structtaskStruct.html">kTask_t</a> *child = 0x0;</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> i = 0x0, x = 0x0, y = 0x0, count = ((size + 4095) / 0x1000), c = 0x0;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <a class="code" href="objgfx30_8h.html#ada085051a6d9a8e00a2cb256d1af14ba">uInt32</a> dI = 0x0, tI = 0x0;</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> baseAddr = 0x0, offset = 0x0;</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *childPageDir = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) 0x5A00000;</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *childPageTable = 0x0;</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageTableSrc = 0x0;</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  offset = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ptr & 0xFFF;</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  baseAddr = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ptr & 0xFFFFF000;</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  child = <a class="code" href="armv6_2sched_8c.html#a9cf37ade4c1f6184b33014ac2015e8ed">schedFindTask</a>(pid);</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">//Calculate The Page Table Index And Page Directory Index</span></div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  dI = (baseAddr / (1024 * 4096));</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  tI = ((baseAddr - (dI * (1024 * 4096))) / 4096);</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  </div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"cr3: 0x%X\n"</span>, child-><a class="code" href="structtaskStruct.html#a4c8accd7c0d5bb5ce426dc982bfc8519">tss</a>.<a class="code" href="structtssStruct.html#a8d312ed3dd0ea7a0f801c08a8cc4afd0">cr3</a>);</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(child-><a class="code" href="structtaskStruct.html#a4c8accd7c0d5bb5ce426dc982bfc8519">tss</a>.<a class="code" href="structtssStruct.html#a8d312ed3dd0ea7a0f801c08a8cc4afd0">cr3</a>, 0x5A00000, <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">id</a>, 0) == 0x0)</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"vmm_remapPage: Failed"</span>);</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a>; i++) {</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  </div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">if</span> ((childPageDir[i] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">//kprintf("mapping: 0x%X\n", i);</span></div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(childPageDir[i], 0x5A01000 + (i * 0x1000), <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">id</a>, 0) == 0x0)</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Returned NULL"</span>);</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  }</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  }</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"mapping completed\n"</span>);</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="comment">//for (x = (_current->oInfo.vmStart / (1024 * 4096)); x < 1024; x++) {</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordflow">for</span> (x = <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#ad6394b4f60e68fe4e1431fc4e1998957">VMM_KERN_START</a>); x < <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#a8204faafc0c27e418f993e07c2f59f14">VMM_KERN_END</a>); x++) {</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">//kpanic("v_mFT");</span></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  pageTableSrc = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a> + (4096 * x));</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  </div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordflow">for</span> (y = 0; y < 1024; y++) {</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  </div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="comment">//Loop Through The Page Table Find An UnAllocated Page</span></div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">if</span> ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) pageTableSrc[y] == (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) 0x0) {</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  </div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">if</span> (count > 1) {</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  </div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="keywordflow">for</span> (c = 0; ((c < count) && (y + c < 1024)); c++) {</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  </div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">if</span> ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) pageTableSrc[y + c] != (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) 0x0) {</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  </div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  c = -1;</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  </div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  }</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  </div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  }</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  </div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keywordflow">if</span> (c != -1) {</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  </div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">for</span> (c = 0; c < count; c++) {</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  </div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">if</span> ((tI + c) >= 0x1000) {</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  </div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  dI++;</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  tI = 0 - c;</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  </div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  }</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  </div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordflow">if</span> ((childPageDir[dI] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="comment">//kprintf("dI: 0x%X\n", dI);</span></div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  childPageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (0x5A01000 + (0x1000 * dI));</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  </div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">if</span> ((childPageTable[tI + c] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(childPageTable[tI + c], ((x * (1024 * 4096)) + ((y + c) * 4096)), <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">id</a>, 0) == 0x0)</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"remap == NULL"</span>);</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  }</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  }</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  </div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  }</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  </div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <a class="code" href="vmm_8h.html#a457446966aafafd939af6603f68516b1">vmm_unmapPage</a>(0x5A00000, 1);</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  </div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">for</span> (i = 0; i < 0x1000; i++) {</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <a class="code" href="vmm_8h.html#a457446966aafafd939af6603f68516b1">vmm_unmapPage</a>((0x5A01000 + (i * 0x1000)), 1);</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  }</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  </div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">return</span> ((<span class="keywordtype">void</span> *) ((x * (1024 * 4096)) + (y * 4096) + offset));</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  </div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  </div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  </div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="comment">//Map A Physical Page To The Virtual Page</span></div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  childPageTable = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (0x5A01000 + (0x1000 * dI));</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">if</span> ((childPageDir[dI] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="comment">//kprintf("eDI: 0x%X", dI);</span></div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">if</span> ((childPageTable[tI] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(childPageTable[tI], ((x * (1024 * 4096)) + (y * 4096)), <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">id</a>, 0) == 0x0)</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"remap Failed"</span>);</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  }</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  }</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  </div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="comment">//Return The Address Of The Mapped In Memory</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <a class="code" href="vmm_8h.html#a457446966aafafd939af6603f68516b1">vmm_unmapPage</a>(0x5A00000, 1);</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  </div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">for</span> (i = 0; i < 0x1000; i++) {</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <a class="code" href="vmm_8h.html#a457446966aafafd939af6603f68516b1">vmm_unmapPage</a>((0x5A01000 + (i * 0x1000)), 1);</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  }</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  </div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">return</span> ((<span class="keywordtype">void</span> *) ((x * (1024 * 4096)) + (y * 4096) + offset));</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  </div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  }</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  </div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  </div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  }</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  </div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div>
<div class="line"><a name="l00488"></a><span class="lineno"><a class="line" href="paging_8c.html#a541f0b43826a40b9e978f5479080bb0e"> 488</a></span>  </div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> }</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  </div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="keywordtype">void</span> *<a class="code" href="paging_8c.html#a541f0b43826a40b9e978f5479080bb0e">vmm_getFreeMallocPage</a>(<a class="code" href="objgfx30_8h.html#a81f3b46fa4ddd984830104840a08da82">uInt16</a> count) {</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <a class="code" href="objgfx30_8h.html#a81f3b46fa4ddd984830104840a08da82">uInt16</a> x = 0x0, y = 0x0;</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keywordtype">int</span> c = 0x0;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageTableSrc = 0x0;</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageDirectory = 0x0;</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  </div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  pageDirectory = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>;</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  </div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <a class="code" href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&fkpSpinLock);</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  </div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="comment">/* Lets Search For A Free Page */</span></div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="keywordflow">for</span> (x = <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#ad6394b4f60e68fe4e1431fc4e1998957">VMM_KERN_START</a>); x <= <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#a8204faafc0c27e418f993e07c2f59f14">VMM_KERN_END</a>); x++) {</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordflow">if</span> ((pageDirectory[x] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) != <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) <span class="comment">/* If Page Directory Is Not Yet Allocated Allocate It */</span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <a class="code" href="vmm_8h.html#acba8d9cc298370338bc5bea5187183b2">vmm_allocPageTable</a>(x, <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>);</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  </div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  pageTableSrc = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a> + (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * x));</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  </div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">for</span> (y = 0; y < 1024; y++) {</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="comment">/* Loop Through The Page Table Find An UnAllocated Page */</span></div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">if</span> ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) pageTableSrc[y] == (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) 0x0) {</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keywordflow">if</span> (count > 1) {</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="keywordflow">for</span> (c = 0; c < count; c++) {</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">if</span> (y + c < 1024) {</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">if</span> ((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) pageTableSrc[y + c] != (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) 0x0) {</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  c = -1;</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  }</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  }</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  }</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">if</span> (c != -1) {</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordflow">for</span> (c = 0; c < count; c++) {</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>), ((x * 0x400000) + ((y + c) * 0x1000)), <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>, 0) == 0x0)</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"remap Failed"</span>);</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  </div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <a class="code" href="paging_8c.html#a8350aa43ff69829ba667ca34d9bcaa7a">vmm_clearVirtualPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((x * 0x400000) + ((y + c) * 0x1000)));</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  }</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&fkpSpinLock);</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">return</span> ((<span class="keywordtype">void</span> *) ((x * (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * <a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a>)) + (y * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>)));</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  }</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="comment">/* Map A Physical Page To The Virtual Page */</span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) <a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>( <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>), ((x * 0x400000) + (y * 0x1000)), <a class="code" href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a>, <a class="code" href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a>, 0) == 0x0)</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"Failed"</span>);</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  </div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">/* Clear This Page So No Garbage Is There */</span></div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <a class="code" href="paging_8c.html#a8350aa43ff69829ba667ca34d9bcaa7a">vmm_clearVirtualPage</a>((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) ((x * 0x400000) + (y * 0x1000)));</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="comment">/* Return The Address Of The Newly Allocate Page */</span></div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&fkpSpinLock);</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="keywordflow">return</span> ((<span class="keywordtype">void</span> *) ((x * (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * <a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a>)) + (y * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>)));</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  }</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  }</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  }</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  }</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="comment">/* If No Free Page Was Found Return NULL */</span></div>
<div class="line"><a name="l00546"></a><span class="lineno"><a class="line" href="paging_8c.html#a6cdf3466734f2da5e258c9844d536295"> 546</a></span>  <a class="code" href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&fkpSpinLock);</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span> }</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  </div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="keywordtype">int</span> <a class="code" href="paging_8c.html#a6cdf3466734f2da5e258c9844d536295">obreak</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td, <span class="keyword">struct</span> <a class="code" href="structobreak__args.html">obreak_args</a> *uap) {</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> i = 0x0;</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a> old = 0x0;</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <a class="code" href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a> base = 0x0;</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <a class="code" href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a> <span class="keyword">new</span> = 0x0;</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  </div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"> #ifdef _VMM_DEBUG</span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"vm_offset_t: [%i]\n"</span>, <span class="keyword">sizeof</span>(<a class="code" href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a>));</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"nsize: [0x%X]\n"</span>, uap-><a class="code" href="structobreak__args.html#ab30a3d3c9186553a40d1b6e7c5714fb4">nsize</a>);</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"vm_daddr: [0x%X]\n"</span>, td-><a class="code" href="structthread.html#ae4165d082b98f27dab6bfeeefb76e060">vm_daddr</a>);</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"vm_dsize: [0x%X]\n"</span>, td-><a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a>);</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"total: [0x%X]\n"</span>, td-><a class="code" href="structthread.html#ae4165d082b98f27dab6bfeeefb76e060">vm_daddr</a> + td-><a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a>);</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> #endif</span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  </div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keyword">new</span> = <a class="code" href="paging_8h.html#a2702263fcf2b3b026cb26c6d895cb0ee">round_page</a>((<a class="code" href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a> )uap-><a class="code" href="structobreak__args.html#ab30a3d3c9186553a40d1b6e7c5714fb4">nsize</a>);</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  </div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  base = <a class="code" href="paging_8h.html#a2702263fcf2b3b026cb26c6d895cb0ee">round_page</a>((<a class="code" href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a> ) td-><a class="code" href="structthread.html#ae4165d082b98f27dab6bfeeefb76e060">vm_daddr</a>);</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  </div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  old = base + <a class="code" href="paging_8h.html#a071caea8a82a06e754daca63317d3c07">ctob</a>(td-><a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a>);</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  </div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keywordflow">if</span> (<span class="keyword">new</span> < base)</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"EINVAL"</span>);</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  </div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">if</span> (<span class="keyword">new</span> > old) {</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">for</span> (i = old; i < <span class="keyword">new</span>; i += 0x1000) {</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">if</span> (<a class="code" href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a>(<a class="code" href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a>(<a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">id</a>), i, <a class="code" href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a>, <a class="code" href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">id</a>, 0) == 0x0)</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"remap Failed"</span>);</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  }</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  td-><a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a> += <a class="code" href="paging_8h.html#a0851ee42f36c8a00e9eafe739c8ffaaa">btoc</a>(<span class="keyword">new</span> - old);</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keyword">new</span> < old) {</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <a class="code" href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a>(<span class="stringliteral">"new < old"</span>);</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  td-><a class="code" href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">vm_dsize</a> -= <a class="code" href="paging_8h.html#a0851ee42f36c8a00e9eafe739c8ffaaa">btoc</a>(old - <span class="keyword">new</span>);</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  }</div>
<div class="line"><a name="l00587"></a><span class="lineno"><a class="line" href="paging_8c.html#a43af6ffc41a9e9da3a15f10fb187266a"> 587</a></span>  </div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> }</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  </div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span> <span class="keywordtype">int</span> <a class="code" href="paging_8c.html#a43af6ffc41a9e9da3a15f10fb187266a">vmm_cleanVirtualSpace</a>(<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> addr) {</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keywordtype">int</span> x = 0x0;</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keywordtype">int</span> y = 0x0;</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  </div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageTableSrc = 0x0;</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *pageDir = 0x0;</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  </div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  pageDir = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) <a class="code" href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a>;</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  </div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keywordflow">for</span> (x = (addr / (<a class="code" href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a> * <a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a>)); x <= <a class="code" href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a>(<a class="code" href="vmm_8h.html#a71bd5e4901787995ae8f9cc3e1a888f9">VMM_USER_END</a>); x++) {</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">if</span> ((pageDir[x] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  pageTableSrc = (<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> *) (<a class="code" href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a> + (<a class="code" href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a> * x));</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  </div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordflow">for</span> (y = 0; y < <a class="code" href="paging_8h.html#adc9776583e54abf06ae7b99f1f3036a6">PT_ENTRIES</a>; y++) {</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">if</span> ((pageTableSrc[y] & <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) == <a class="code" href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a>) {</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="keywordflow">if</span> ((pageTableSrc[y] & <a class="code" href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>) == <a class="code" href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a>) {</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <a class="code" href="vmm_8h.html#aafef303dc8f2c6ed7bcf171819579166">adjustCowCounter</a>(((<a class="code" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a>) pageTableSrc[y] & 0xFFFFF000), -1);</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  pageTableSrc[y] = 0x0;</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  }</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="comment"> else if ((pageTableSrc[y] & PAGE_STACK) == PAGE_STACK) {</span></div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="comment"> //TODO: We need to fix this so we can clean the stack!</span></div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="comment"> //kprintf("Page Stack!: 0x%X", (x * 0x400000) + (y * 0x1000));</span></div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> // pageTableSrc[y] = 0x0;</span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"> //MrOlsen (2016-01-18) NOTE: WHat should I Do Here? kprintf( "STACK: (%i:%i)", x, y );</span></div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment"> }</span></div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="comment"> int vmmMemoryMapIndex = ((pageTableSrc[y] & 0xFFFFF000) / 4096);</span></div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="comment"> vmmMemoryMap[vmmMemoryMapIndex].cowCounter = 0x0;</span></div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="comment"> vmmMemoryMap[vmmMemoryMapIndex].pid = vmmID;</span></div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="comment"> vmmMemoryMap[vmmMemoryMapIndex].status = memAvail;</span></div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"> systemVitals->freePages++;</span></div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  pageTableSrc[y] = 0x0;</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  }</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  }</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  }</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  }</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  }</div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  </div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keyword">asm</span>(</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="stringliteral">"movl %cr3,%eax\n"</span></div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="stringliteral">"movl %eax,%cr3\n"</span></div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  );</div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  </div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> <span class="preprocessor"> #ifdef VMM_DEBUG</span></div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <a class="code" href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"Here!?"</span>);</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="preprocessor"> #endif</span></div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  </div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span> }</div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="astructtaskStruct_html"><div class="ttname"><a href="structtaskStruct.html">taskStruct</a></div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00062">sched.h:62</a></div></div>
<div class="ttc" id="aspinlock_8h_html"><div class="ttname"><a href="spinlock_8h.html">spinlock.h</a></div></div>
<div class="ttc" id="apaging_8c_html_a7c58070dedac2ee9e1c73d8c8206b923"><div class="ttname"><a href="paging_8c.html#a7c58070dedac2ee9e1c73d8c8206b923">kernelPageDirectory</a></div><div class="ttdeci">uint32_t * kernelPageDirectory</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00041">paging.c:41</a></div></div>
<div class="ttc" id="avmm_8h_html_a89e87741958ee81f1811075b25af058a"><div class="ttname"><a href="vmm_8h.html#a89e87741958ee81f1811075b25af058a">vmmMemoryMap</a></div><div class="ttdeci">mMap * vmmMemoryMap</div><div class="ttdef"><b>Definition:</b> <a href="vmm__memory_8c_source.html#l00047">vmm_memory.c:47</a></div></div>
<div class="ttc" id="aobjgfx30_8h_html_ada085051a6d9a8e00a2cb256d1af14ba"><div class="ttname"><a href="objgfx30_8h.html#ada085051a6d9a8e00a2cb256d1af14ba">uInt32</a></div><div class="ttdeci">unsigned long int uInt32</div><div class="ttdef"><b>Definition:</b> <a href="objgfx30_8h_source.html#l00049">objgfx30.h:49</a></div></div>
<div class="ttc" id="avmm_8h_html_aa015f84b2a9b7588c472ff5dc99646f6"><div class="ttname"><a href="vmm_8h.html#aa015f84b2a9b7588c472ff5dc99646f6">VMM_MMAP_ADDR_PMODE</a></div><div class="ttdeci">#define VMM_MMAP_ADDR_PMODE</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00050">vmm.h:50</a></div></div>
<div class="ttc" id="avmm_8h_html_a38c3fe6ce5f3bf8af4a0631d4c41b0ba"><div class="ttname"><a href="vmm_8h.html#a38c3fe6ce5f3bf8af4a0631d4c41b0ba">freePage</a></div><div class="ttdeci">int freePage(uint32_t pageAddr)</div><div class="ttdef"><b>Definition:</b> <a href="vmm__memory_8c_source.html#l00262">vmm_memory.c:262</a></div></div>
<div class="ttc" id="apaging_8h_html_a57d743cb60fe478f6720c42315e7e813"><div class="ttname"><a href="paging_8h.html#a57d743cb60fe478f6720c42315e7e813">PAGE_COW</a></div><div class="ttdeci">#define PAGE_COW</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00064">paging.h:64</a></div></div>
<div class="ttc" id="akpanic_8h_html_aa5193288597f00c4f8e3b2939aa6c0ce"><div class="ttname"><a href="kpanic_8h.html#aa5193288597f00c4f8e3b2939aa6c0ce">K_PANIC</a></div><div class="ttdeci">#define K_PANIC(msg)</div><div class="ttdef"><b>Definition:</b> <a href="kpanic_8h_source.html#l00032">kpanic.h:32</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="string_8h.html">string.h</a></div></div>
<div class="ttc" id="aobjgfx30_8h_html_a81f3b46fa4ddd984830104840a08da82"><div class="ttname"><a href="objgfx30_8h.html#a81f3b46fa4ddd984830104840a08da82">uInt16</a></div><div class="ttdeci">unsigned short int uInt16</div><div class="ttdef"><b>Definition:</b> <a href="objgfx30_8h_source.html#l00048">objgfx30.h:48</a></div></div>
<div class="ttc" id="apaging_8h_html_a071caea8a82a06e754daca63317d3c07"><div class="ttname"><a href="paging_8h.html#a071caea8a82a06e754daca63317d3c07">ctob</a></div><div class="ttdeci">#define ctob(x)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00074">paging.h:74</a></div></div>
<div class="ttc" id="apaging_8c_html_a3615feeeee9f4038cd1070372ccba22e"><div class="ttname"><a href="paging_8c.html#a3615feeeee9f4038cd1070372ccba22e">vmm_getFreeKernelPage</a></div><div class="ttdeci">void * vmm_getFreeKernelPage(pidType pid, uint16_t count)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00291">paging.c:291</a></div></div>
<div class="ttc" id="astructthread_html"><div class="ttname"><a href="structthread.html">thread</a></div><div class="ttdef"><b>Definition:</b> <a href="thread_8h_source.html#l00040">thread.h:40</a></div></div>
<div class="ttc" id="aassert_8h_html"><div class="ttname"><a href="assert_8h.html">assert.h</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_ad6f327965d9e330cd225ca2153ac0453"><div class="ttname"><a href="include_2sys_2types_8h.html#ad6f327965d9e330cd225ca2153ac0453">vm_offset_t</a></div><div class="ttdeci">__uint32_t vm_offset_t</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00120">types.h:120</a></div></div>
<div class="ttc" id="aarmv6_2spinlock_8c_html_ae29ab191c93f9ead066cb462dd2e7247"><div class="ttname"><a href="armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a></div><div class="ttdeci">void spinUnlock(spinLock_t *lock)</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2spinlock_8c_source.html#l00036">spinlock.c:36</a></div></div>
<div class="ttc" id="avmm_8h_html"><div class="ttname"><a href="vmm_8h.html">vmm.h</a></div></div>
<div class="ttc" id="apaging_8h_html_a2702263fcf2b3b026cb26c6d895cb0ee"><div class="ttname"><a href="paging_8h.html#a2702263fcf2b3b026cb26c6d895cb0ee">round_page</a></div><div class="ttdeci">#define round_page(x)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00072">paging.h:72</a></div></div>
<div class="ttc" id="apaging_8c_html_a541f0b43826a40b9e978f5479080bb0e"><div class="ttname"><a href="paging_8c.html#a541f0b43826a40b9e978f5479080bb0e">vmm_getFreeMallocPage</a></div><div class="ttdeci">void * vmm_getFreeMallocPage(uInt16 count)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00488">paging.c:488</a></div></div>
<div class="ttc" id="avmm_8h_html_aafef303dc8f2c6ed7bcf171819579166"><div class="ttname"><a href="vmm_8h.html#aafef303dc8f2c6ed7bcf171819579166">adjustCowCounter</a></div><div class="ttdeci">int adjustCowCounter(uint32_t baseAddr, int adjustment)</div></div>
<div class="ttc" id="astructtaskStruct_html_a4c8accd7c0d5bb5ce426dc982bfc8519"><div class="ttname"><a href="structtaskStruct.html#a4c8accd7c0d5bb5ce426dc982bfc8519">taskStruct::tss</a></div><div class="ttdeci">struct tssStruct tss</div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00067">sched.h:67</a></div></div>
<div class="ttc" id="aspinlock_8h_html_a0fe85a4f3642683148b25916d6c5eafd"><div class="ttname"><a href="spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a></div><div class="ttdeci">#define SPIN_LOCK_INITIALIZER</div><div class="ttdef"><b>Definition:</b> <a href="spinlock_8h_source.html#l00036">spinlock.h:36</a></div></div>
<div class="ttc" id="asched_8h_html"><div class="ttname"><a href="sched_8h.html">sched.h</a></div></div>
<div class="ttc" id="aarmv6_2kpanic_8c_html_adb9a182aa071791a306163d50d653deb"><div class="ttname"><a href="armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a></div><div class="ttdeci">void kpanic(const char *fmt,...)</div><div class="ttdoc">print panic message and halt system</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2kpanic_8c_source.html#l00041">kpanic.c:41</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html"><div class="ttname"><a href="include_2sys_2types_8h.html">types.h</a></div></div>
<div class="ttc" id="agpt_8h_html_a310ac455ac45de9713bd7dcb0b5500ad"><div class="ttname"><a href="gpt_8h.html#a310ac455ac45de9713bd7dcb0b5500ad">bzero</a></div><div class="ttdeci">#define bzero(buf, size)</div><div class="ttdef"><b>Definition:</b> <a href="gpt_8h_source.html#l00037">gpt.h:37</a></div></div>
<div class="ttc" id="avmm_8h_html_ad6394b4f60e68fe4e1431fc4e1998957"><div class="ttname"><a href="vmm_8h.html#ad6394b4f60e68fe4e1431fc4e1998957">VMM_KERN_START</a></div><div class="ttdeci">#define VMM_KERN_START</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00064">vmm.h:64</a></div></div>
<div class="ttc" id="astructmMap_html"><div class="ttname"><a href="structmMap.html">mMap</a></div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00102">vmm.h:102</a></div></div>
<div class="ttc" id="apaging_8h_html_a0851ee42f36c8a00e9eafe739c8ffaaa"><div class="ttname"><a href="paging_8h.html#a0851ee42f36c8a00e9eafe739c8ffaaa">btoc</a></div><div class="ttdeci">#define btoc(x)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00075">paging.h:75</a></div></div>
<div class="ttc" id="astructobreak__args_html_ab30a3d3c9186553a40d1b6e7c5714fb4"><div class="ttname"><a href="structobreak__args.html#ab30a3d3c9186553a40d1b6e7c5714fb4">obreak_args::nsize</a></div><div class="ttdeci">char * nsize</div><div class="ttdef"><b>Definition:</b> <a href="sysproto__posix_8h_source.html#l00419">sysproto_posix.h:419</a></div></div>
<div class="ttc" id="avmm_8h_html_a457446966aafafd939af6603f68516b1"><div class="ttname"><a href="vmm_8h.html#a457446966aafafd939af6603f68516b1">vmm_unmapPage</a></div><div class="ttdeci">void vmm_unmapPage(uint32_t, unmapFlags_t)</div><div class="ttdef"><b>Definition:</b> <a href="unmappage_8c_source.html#l00047">unmappage.c:47</a></div></div>
<div class="ttc" id="aarmv6_2spinlock_8c_html_a71f03d2ba55111c715b6068254847a53"><div class="ttname"><a href="armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a></div><div class="ttdeci">void spinLock(spinLock_t *lock)</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2spinlock_8c_source.html#l00055">spinlock.c:55</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_a281b4b5562236420969a830503b0ba19"><div class="ttname"><a href="include_2sys_2types_8h.html#a281b4b5562236420969a830503b0ba19">uint16_t</a></div><div class="ttdeci">__uint16_t uint16_t</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00045">types.h:45</a></div></div>
<div class="ttc" id="akpanic_8h_html"><div class="ttname"><a href="kpanic_8h.html">kpanic.h</a></div></div>
<div class="ttc" id="astructtaskStruct_html_a30966587a60db6b40c8be6c387e11d81"><div class="ttname"><a href="structtaskStruct.html#a30966587a60db6b40c8be6c387e11d81">taskStruct::id</a></div><div class="ttdeci">pidType id</div><div class="ttdef"><b>Definition:</b> <a href="sched_8h_source.html#l00063">sched.h:63</a></div></div>
<div class="ttc" id="avmm_8h_html_ab8e4e189a7b1df2a03072ce5b75c89fe"><div class="ttname"><a href="vmm_8h.html#ab8e4e189a7b1df2a03072ce5b75c89fe">vmm_findFreePage</a></div><div class="ttdeci">uint32_t vmm_findFreePage(pidType pid)</div><div class="ttdef"><b>Definition:</b> <a href="vmm__memory_8c_source.html#l00221">vmm_memory.c:221</a></div></div>
<div class="ttc" id="aarmv6_2sched_8c_html_a9cf37ade4c1f6184b33014ac2015e8ed"><div class="ttname"><a href="armv6_2sched_8c.html#a9cf37ade4c1f6184b33014ac2015e8ed">schedFindTask</a></div><div class="ttdeci">kTask_t * schedFindTask(uInt32 id)</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2sched_8c_source.html#l00207">sched.c:207</a></div></div>
<div class="ttc" id="apaging_8h_html_adc9776583e54abf06ae7b99f1f3036a6"><div class="ttname"><a href="paging_8h.html#adc9776583e54abf06ae7b99f1f3036a6">PT_ENTRIES</a></div><div class="ttdeci">#define PT_ENTRIES</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00049">paging.h:49</a></div></div>
<div class="ttc" id="apaging_8c_html_a43af6ffc41a9e9da3a15f10fb187266a"><div class="ttname"><a href="paging_8c.html#a43af6ffc41a9e9da3a15f10fb187266a">vmm_cleanVirtualSpace</a></div><div class="ttdeci">int vmm_cleanVirtualSpace(uint32_t addr)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00587">paging.c:587</a></div></div>
<div class="ttc" id="akprintf_8h_html"><div class="ttname"><a href="kprintf_8h.html">kprintf.h</a></div></div>
<div class="ttc" id="apaging_8h_html_a0d99c75e51b448fcb97266da4815c63f"><div class="ttname"><a href="paging_8h.html#a0d99c75e51b448fcb97266da4815c63f">PAGE_GLOBAL</a></div><div class="ttdeci">#define PAGE_GLOBAL</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00062">paging.h:62</a></div></div>
<div class="ttc" id="apaging_8c_html_ad6c3897473d837504f3d1415fb8ab796"><div class="ttname"><a href="paging_8c.html#ad6c3897473d837504f3d1415fb8ab796">vmm_remapPage</a></div><div class="ttdeci">int vmm_remapPage(uint32_t source, uint32_t dest, uint16_t perms, pidType pid, int haveLock)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00199">paging.c:199</a></div></div>
<div class="ttc" id="apaging_8h_html_a1532db17068ba8d409b8ffe066414af2"><div class="ttname"><a href="paging_8h.html#a1532db17068ba8d409b8ffe066414af2">PAGE_STACK</a></div><div class="ttdeci">#define PAGE_STACK</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00065">paging.h:65</a></div></div>
<div class="ttc" id="apaging_8h_html_ac96f9536624cb5d2e7634f37fa919c4c"><div class="ttname"><a href="paging_8h.html#ac96f9536624cb5d2e7634f37fa919c4c">PD_INDEX</a></div><div class="ttdeci">#define PD_INDEX(v_addr)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00040">paging.h:40</a></div></div>
<div class="ttc" id="avitals_8h_html"><div class="ttname"><a href="vitals_8h.html">vitals.h</a></div></div>
<div class="ttc" id="apaging_8h_html_af0fff7a38cd2c7a32d580787423b94ea"><div class="ttname"><a href="paging_8h.html#af0fff7a38cd2c7a32d580787423b94ea">PAGE_DEFAULT</a></div><div class="ttdeci">#define PAGE_DEFAULT</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00068">paging.h:68</a></div></div>
<div class="ttc" id="avmm_8h_html_afcaabe90527f6aec9cfeaaba78500e4c"><div class="ttname"><a href="vmm_8h.html#afcaabe90527f6aec9cfeaaba78500e4c">pdSpinLock</a></div><div class="ttdeci">struct spinLock pdSpinLock</div><div class="ttdef"><b>Definition:</b> <a href="vmm__init_8c_source.html#l00033">vmm_init.c:33</a></div></div>
<div class="ttc" id="apaging_8h_html_a1b0f37794d3da1a86f1df77e503ed98f"><div class="ttname"><a href="paging_8h.html#a1b0f37794d3da1a86f1df77e503ed98f">PD_BASE_ADDR</a></div><div class="ttdeci">#define PD_BASE_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00045">paging.h:45</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_a0238af00180b6d9278fa1c6aa790fdf4"><div class="ttname"><a href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a></div><div class="ttdeci">__uint32_t uint32_t</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00046">types.h:46</a></div></div>
<div class="ttc" id="astructobreak__args_html"><div class="ttname"><a href="structobreak__args.html">obreak_args</a></div><div class="ttdef"><b>Definition:</b> <a href="sysproto__posix_8h_source.html#l00417">sysproto_posix.h:417</a></div></div>
<div class="ttc" id="astructthread_html_ac5ce95b5be4422e5f5a61f081547d425"><div class="ttname"><a href="structthread.html#ac5ce95b5be4422e5f5a61f081547d425">thread::vm_dsize</a></div><div class="ttdeci">u_long vm_dsize</div><div class="ttdef"><b>Definition:</b> <a href="thread_8h_source.html#l00044">thread.h:44</a></div></div>
<div class="ttc" id="apaging_8c_html_a8350aa43ff69829ba667ca34d9bcaa7a"><div class="ttname"><a href="paging_8c.html#a8350aa43ff69829ba667ca34d9bcaa7a">vmm_clearVirtualPage</a></div><div class="ttdeci">int vmm_clearVirtualPage(uint32_t pageAddr)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00356">paging.c:356</a></div></div>
<div class="ttc" id="aarmv6_2sched_8c_html_a54397bfe18d5da4d50ff03b15f540858"><div class="ttname"><a href="armv6_2sched_8c.html#a54397bfe18d5da4d50ff03b15f540858">_current</a></div><div class="ttdeci">kTask_t * _current</div><div class="ttdef"><b>Definition:</b> <a href="armv6_2sched_8c_source.html#l00050">sched.c:50</a></div></div>
<div class="ttc" id="apaging_8h_html_a2c6e29890bb0209384b6d012db48e2f7"><div class="ttname"><a href="paging_8h.html#a2c6e29890bb0209384b6d012db48e2f7">PT_INDEX</a></div><div class="ttdeci">#define PT_INDEX(v_addr)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00042">paging.h:42</a></div></div>
<div class="ttc" id="avmm_8h_html_a1e10465731ac6cbfc253ce7d89ae34c8"><div class="ttname"><a href="vmm_8h.html#a1e10465731ac6cbfc253ce7d89ae34c8">VMM_MMAP_ADDR_RMODE</a></div><div class="ttdeci">#define VMM_MMAP_ADDR_RMODE</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00051">vmm.h:51</a></div></div>
<div class="ttc" id="ainclude_2sys_2types_8h_html_ae438ba74394b14d7b24b6df3b3b8c252"><div class="ttname"><a href="include_2sys_2types_8h.html#ae438ba74394b14d7b24b6df3b3b8c252">pidType</a></div><div class="ttdeci">int pidType</div><div class="ttdef"><b>Definition:</b> <a href="include_2sys_2types_8h_source.html#l00075">types.h:75</a></div></div>
<div class="ttc" id="astructthread_html_ae4165d082b98f27dab6bfeeefb76e060"><div class="ttname"><a href="structthread.html#ae4165d082b98f27dab6bfeeefb76e060">thread::vm_daddr</a></div><div class="ttdeci">u_long vm_daddr</div><div class="ttdef"><b>Definition:</b> <a href="thread_8h_source.html#l00043">thread.h:43</a></div></div>
<div class="ttc" id="astructspinLock_html"><div class="ttname"><a href="structspinLock.html">spinLock</a></div><div class="ttdef"><b>Definition:</b> <a href="spinlock_8h_source.html#l00041">spinlock.h:41</a></div></div>
<div class="ttc" id="adescrip_8h_html"><div class="ttname"><a href="descrip_8h.html">descrip.h</a></div></div>
<div class="ttc" id="apaging_8h_html_a15b43ccb21abdb9e0a41acb82b260a99"><div class="ttname"><a href="paging_8h.html#a15b43ccb21abdb9e0a41acb82b260a99">_vmm_pageFault</a></div><div class="ttdeci">void _vmm_pageFault()</div></div>
<div class="ttc" id="avmm_8h_html_ad43d15bd90c1980dae3db013c1a5abb0"><div class="ttname"><a href="vmm_8h.html#ad43d15bd90c1980dae3db013c1a5abb0">VMM_USER_START</a></div><div class="ttdeci">#define VMM_USER_START</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00058">vmm.h:58</a></div></div>
<div class="ttc" id="avmm_8h_html_a2b0091bdc36e32af3daf9cfcaa7c04e1"><div class="ttname"><a href="vmm_8h.html#a2b0091bdc36e32af3daf9cfcaa7c04e1">numPages</a></div><div class="ttdeci">int numPages</div><div class="ttdef"><b>Definition:</b> <a href="vmm__memory_8c_source.html#l00045">vmm_memory.c:45</a></div></div>
<div class="ttc" id="apaging_8h_html_a91bd4c1c49996222f571b2f53ca00dc4"><div class="ttname"><a href="paging_8h.html#a91bd4c1c49996222f571b2f53ca00dc4">PD_ENTRIES</a></div><div class="ttdeci">#define PD_ENTRIES</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00048">paging.h:48</a></div></div>
<div class="ttc" id="apaging_8h_html_a7d467c1d283fdfa1f2081ba1e0d01b6e"><div class="ttname"><a href="paging_8h.html#a7d467c1d283fdfa1f2081ba1e0d01b6e">PAGE_SIZE</a></div><div class="ttdeci">#define PAGE_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00037">paging.h:37</a></div></div>
<div class="ttc" id="apaging_8h_html_a8b838cda4f0bc79ab8d07eb19dd35420"><div class="ttname"><a href="paging_8h.html#a8b838cda4f0bc79ab8d07eb19dd35420">KERNEL_PAGE_DEFAULT</a></div><div class="ttdeci">#define KERNEL_PAGE_DEFAULT</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00069">paging.h:69</a></div></div>
<div class="ttc" id="akprintf_8h_html_a20b56810edb62a6fe59917015c30848f"><div class="ttname"><a href="kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a></div><div class="ttdeci">int kprintf(const char *,...)</div><div class="ttdef"><b>Definition:</b> <a href="kprintf_8c_source.html#l00259">kprintf.c:259</a></div></div>
<div class="ttc" id="avmm_8h_html_a71bd5e4901787995ae8f9cc3e1a888f9"><div class="ttname"><a href="vmm_8h.html#a71bd5e4901787995ae8f9cc3e1a888f9">VMM_USER_END</a></div><div class="ttdeci">#define VMM_USER_END</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00059">vmm.h:59</a></div></div>
<div class="ttc" id="avmm_8h_html_a8204faafc0c27e418f993e07c2f59f14"><div class="ttname"><a href="vmm_8h.html#a8204faafc0c27e418f993e07c2f59f14">VMM_KERN_END</a></div><div class="ttdeci">#define VMM_KERN_END</div><div class="ttdef"><b>Definition:</b> <a href="vmm_8h_source.html#l00065">vmm.h:65</a></div></div>
<div class="ttc" id="astructtssStruct_html_a8d312ed3dd0ea7a0f801c08a8cc4afd0"><div class="ttname"><a href="structtssStruct.html#a8d312ed3dd0ea7a0f801c08a8cc4afd0">tssStruct::cr3</a></div><div class="ttdeci">long cr3</div><div class="ttdef"><b>Definition:</b> <a href="tss_8h_source.html#l00046">tss.h:46</a></div></div>
<div class="ttc" id="apaging_8h_html_a8d42a9a09d9dea53cab3044f51482acc"><div class="ttname"><a href="paging_8h.html#a8d42a9a09d9dea53cab3044f51482acc">PT_BASE_ADDR</a></div><div class="ttdeci">#define PT_BASE_ADDR</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00046">paging.h:46</a></div></div>
<div class="ttc" id="apaging_8c_html_a6aca027c65f91943e6bc46ab9542c086"><div class="ttname"><a href="paging_8c.html#a6aca027c65f91943e6bc46ab9542c086">vmm_mapFromTask</a></div><div class="ttdeci">void * vmm_mapFromTask(pidType pid, void *ptr, uint32_t size)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00372">paging.c:372</a></div></div>
<div class="ttc" id="apaging_8c_html_a6cdf3466734f2da5e258c9844d536295"><div class="ttname"><a href="paging_8c.html#a6cdf3466734f2da5e258c9844d536295">obreak</a></div><div class="ttdeci">int obreak(struct thread *td, struct obreak_args *uap)</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00546">paging.c:546</a></div></div>
<div class="ttc" id="apaging_8h_html_a122dfc414a40e260fd35dbe9743db26f"><div class="ttname"><a href="paging_8h.html#a122dfc414a40e260fd35dbe9743db26f">PAGE_PRESENT</a></div><div class="ttdeci">#define PAGE_PRESENT</div><div class="ttdef"><b>Definition:</b> <a href="paging_8h_source.html#l00055">paging.h:55</a></div></div>
<div class="ttc" id="akmalloc_8h_html"><div class="ttname"><a href="kmalloc_8h.html">kmalloc.h</a></div></div>
<div class="ttc" id="apaging_8c_html_af47a45e3f0802f5aac053808127aaaf1"><div class="ttname"><a href="paging_8c.html#af47a45e3f0802f5aac053808127aaaf1">vmm_pagingInit</a></div><div class="ttdeci">int vmm_pagingInit()</div><div class="ttdef"><b>Definition:</b> <a href="paging_8c_source.html#l00058">paging.c:58</a></div></div>
<div class="ttc" id="akmalloc_8h_html_a81d09bc848b49133401b3efeeb65f1af"><div class="ttname"><a href="kmalloc_8h.html#a81d09bc848b49133401b3efeeb65f1af">sysID</a></div><div class="ttdeci">#define sysID</div><div class="ttdef"><b>Definition:</b> <a href="kmalloc_8h_source.html#l00038">kmalloc.h:38</a></div></div>
<div class="ttc" id="avmm_8h_html_acba8d9cc298370338bc5bea5187183b2"><div class="ttname"><a href="vmm_8h.html#acba8d9cc298370338bc5bea5187183b2">vmm_allocPageTable</a></div><div class="ttdeci">int vmm_allocPageTable(uint32_t, pidType)</div><div class="ttdef"><b>Definition:</b> <a href="vmm__allocpagetable_8c_source.html#l00007">vmm_allocpagetable.c:7</a></div></div>
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