Eric W. Biederman wrote:
>
> We have real mystery historical cases in Gujin and ELILO. So it
> probably makes sense at this point to force a gdt reload if we can and
> otherwise require all of the segments %ds, %es, %fs, %gs to be loaded
> with a valid segment, that we can reach everything we need to touch
> from.
>
I think we should avoid using %fs and %gs (no use for them, anyway); but
I think it's a decent expectation to have %cs, %ds, %es, and %ss set up.
Gujin seems to have a near-zero user community, so if they have to rev
their code it wouldn't be a big deal (the author keeps trying to push
some crack-smoking "Gujin native" patches into the kernel, too), but
breaking ELILO would hurt anyone using Intel Macs.
-hpa
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