global descriptor table in X86 Linux

[Peter Teoh]

search for "lgdt" here (for 32-bit kernel):

http://lxr.free-electrons.com/source/arch/x86/kernel/head_32.S


On Tue, Jul 29, 2014 at 4:04 AM, Xin Tong <trent.tong at gmail.com> wrote:

> Hi
>
> Ive heard that Linux uses the flat mode segmentation, i.e. the
> segmentation base is forced to be 0 and the limit to be 2^64.
>
> I am having trouble finding the kernel code that sets up the GDT, can
> someone please point me to the right direction.
>
> Thanks a lot.
> Xin
>
>
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-- 
Regards,
Peter Teoh
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