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@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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