x86: split loading percpu segments from loading gdt

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Impact: split out a function, no functional change

Xen needs to be able to access percpu data from very early on.  For
various reasons, it cannot also load the gdt at that time.   It does,
however, have a pefectly functional gdt at that point, so there's no
pressing need to reload the gdt.

Split the function to load the segment registers off, so Xen can call
it directly.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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This commit is contained in:

Jeremy Fitzhardinge 2009-01-30 17:47:54 +09:00 • committed by Tejun Heo

parent 552be871e6

commit 11e3a840cd

2 changed files with 13 additions and 6 deletions

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1

arch/x86/include/asm/processor.h

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18

arch/x86/kernel/cpu/common.c

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