Re: [PATCH 8/14] i386 / Add a per cpu gdt accessor

[Zwane Mwaikambo]

On Wed, 10 Aug 2005, Zachary Amsden wrote:

> Thanks for the feedback.  I believe the binary compilation is the same.  It is
> superfluous in the sense that there is not yet a real use for it, but it is
> needed for later developement.
> 
> Xen requires page isolation of system data structures that could be used to
> override privilege.  Since they do not shadow the GDT, they require the GDT to
> be write protected.  A side effect of that is that the GDT must be moved to an
> isolated page.  Thus, the accessors to allow transparently moving the GDT for
> a paravirtual build.  There is deliberately no effect on the standard build.

Thanks for the explanation, i wasn't quite sure what you were planning on 
doing with the gdt table there.

> P.S. Sorry I got your mail address wrong earlier.  I mistyped it from the
> update to the CREDITS patch.

Not a problem, i actually had to double check to make sure i didn't spell 
it incorrectly too ;)

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/