Eric W. Biederman wrote:
> WANG Cong <[email protected]> writes:
>
>> Thanks for your point.
>> I know little about virtualization, maybe can't help much. But I am interested
>> in other things you mentioned. AFAIK, segments can't be avoided on i386, and
>> Linux uses them very little, how are they recalculated constantly?
>
> Look in arch/i386/boot/setup.S it runs in 16bit mode. We are talking about
> real mode segments not 16bit segments.
>
> 16bit real mode is a completely different ball game, and why we keep BIOS
> calls isolated to that one dinky file.
>
A lot of that code (although, of course, not all) could be written in C,
though. I'm thinking of taking a stab at rewriting it that way.
-hpa
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