From: vjoss197@gmail.com (Vaibhav Jain)
To: kernelnewbies@lists.kernelnewbies.org
Subject: identity mapped paging
Date: Wed, 11 Apr 2012 14:22:29 -0700 [thread overview]
Message-ID: <CAKuUYSy-j5HogDpg0-9j5RrVSPbNObBDKqafBEPgCTjHO2twFA@mail.gmail.com> (raw)
I am not clear about the use of identity mapped paging while paging is
being enabled by the operating system. Also I don't understand at what
point are the
identity mappings no longer useful.According to this article
http://geezer.osdevbrasil.net/osd/mem/index.htm#identity - "The page table
entries used to identity-map kernel memory can be deleted once paging and
virtual addresses are enabled." Can somebody please explain?
Thanks
Vaibhav Jain
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Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-11 21:22 Vaibhav Jain [this message]
2012-06-19 9:23 ` identity mapped paging subin gangadharan
2012-06-19 15:54 ` Dave Hylands
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