Re: Assignment of GDT entries

[Jeremy Fitzhardinge]

linux-os (Dick Johnson) wrote:
> The entries 1 through 3 are used during the boot sequence, see
> setup.S, search for "gdt" around line 983.
>   

OK, but that's an early GDT used during boot, which shouldn't have any 
bearing on the GDT of the running kernel.

> I can't imagine a reason why you'd want to do this.
>   

I'm looking at packing all the descriptors together so they share a 
cache line, and therefore reduce the likelihood of a cache miss when 
loading a segment register.

   J
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