> > does anyone want to implement "gdt entry swapping" which mycroft suggested?
> > although i'm not really sure if i understand what he meant correctly,
> > it sounds like too much complexity for little gain.
> 
> I read it as having one LDT descriptor in each per-CPU GDT, which is then
> updated in cpu_switchto() to point to a new area. We already update GDT
> descriptors for the user-set fsbase and gsbase.

i want to get rid of ltr from cpu_switchto.

YAMAMOTO Takashi