<div><span style="font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;text-align:left;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;float:none;display:inline!important;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">I am not clear about the use of identity mapped paging while paging is being enabled by the operating system. Also I don&#39;t understand at what point are the </span></div>
<div><span style="font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;text-align:left;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;float:none;display:inline!important;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">identity mappings no longer useful.According to this article </span><a style="border-width:0px;font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;margin:0px;padding:0px;text-align:left;color:rgb(74,107,130);text-transform:none;text-indent:0px;letter-spacing:normal;text-decoration:none;word-spacing:0px;vertical-align:baseline;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)" href="http://geezer.osdevbrasil.net/osd/mem/index.htm#identity" rel="nofollow">http://geezer.osdevbrasil.net/osd/mem/index.htm#identity</a><span style="font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;text-align:left;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;float:none;display:inline!important;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)"><span class="Apple-converted-space"> </span>- &quot;The page table entries used to identity-map kernel memory can be deleted once paging and virtual addresses are enabled.&quot; Can somebody please explain?</span></div>
<div><span style="font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;text-align:left;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;float:none;display:inline!important;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)"></span> </div>
<div><span style="font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;text-align:left;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;float:none;display:inline!important;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">Thanks</span></div>
<div><span style="font:14px/18px Arial,&quot;Liberation Sans&quot;,&quot;DejaVu Sans&quot;,sans-serif;text-align:left;color:rgb(0,0,0);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;float:none;display:inline!important;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">Vaibhav Jain</span></div>