Messages in this thread | | | Date | Fri, 18 Jan 2002 16:14:01 -0500 | From | Brian Gerst <> | Subject | Re: Is there anyway to use 4M pages on x86 linux in user level? |
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DervishD wrote: > > Hi Brian :) > > >The large page size is 4MB, except in PAE mode where they are 2MB. > >Normal pages are always 4KB. Noting in the GDT affects the page > >size. > > The entries in the GDT, do not set the page size for that > descriptor? I'm certainly rusted on the i386 O:))) > > Raúl
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.
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