From: DervishD <raul@viadomus.com>
To: bgerst@didntduck.org, raul@viadomus.com
Cc: linux-kernel@vger.kernel.org, yinlei_yu@hotmail.com
Subject: Re: Is there anyway to use 4M pages on x86 linux in user level?
Date: Sat, 19 Jan 2002 00:18:23 +0100 [thread overview]
Message-ID: <E16RiH9-0007mc-00@DervishD.viadomus.com> (raw)
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Hello Brian :)
>> The entries in the GDT, do not set the page size for that
>> descriptor? I'm certainly rusted on the i386 O:)))
>No, there is a bit in the page directory that determines if the entry
>points to a page table (with 4KB pages) or to a 4MB page. The GDT is
>only used for segmentation, which is totally seperate from paging.
That was my confusion: I forgot that the i386 does segmentation
AND paging. Thanks for the help :) I've taking a look at a book that
I had gathering dust (maybe 8 years...), by Douglas V.Hall. I must
take a really *deep* read into it and other i386 documentation before
getting in this kind of conversations O:)). Thanks again for your help.
Raúl
next reply other threads:[~2002-01-18 23:05 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-18 23:18 DervishD [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-01-18 21:10 DervishD
2002-01-18 21:14 ` Brian Gerst
2002-01-18 21:37 ` Richard B. Johnson
2002-01-18 12:31 DervishD
2002-01-18 13:46 ` Brian Gerst
2002-01-17 17:18 Yinlei Yu
2002-01-17 17:48 ` Rik van Riel
2002-01-18 7:23 ` Jeremy Jackson
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