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From: Vinay Venkataraghavan <raghavanvinay@yahoo.com>
To: linux kernel <linux-kernel@vger.kernel.org>
Subject: Page protection flags in linux on an x86 platform
Date: Wed, 25 Feb 2009 13:34:52 -0800 (PST)	[thread overview]
Message-ID: <257438.40011.qm@web39802.mail.mud.yahoo.com> (raw)





Folks,

I am trying to port some PPC code to x86 based linux. My question is that I am need to create some page mappings using remap_pfn_range. In the code for the PPC,
the protection flags being specified are:

__pgprot(_PAGE_NO_CACHE | _PAGE_GUARDED);

But it looks like these do not exist when linux is compiled for the x86 architecture. 

What are the relevant protection flags to achieve the same for the x86 architecture. 

Thanks for any help.

- Vinay


      

             reply	other threads:[~2009-02-25 21:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-25 21:34 Vinay Venkataraghavan [this message]
  -- strict thread matches above, loose matches on Subject: below --
2009-02-26 19:36 Page protection flags in linux on an x86 platform Vinay Venkataraghavan
2009-02-26 19:54 ` Arnd Bergmann

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