On Thu, Apr 26, 2007 at 06:12:43PM -0700, H. Peter Anvin wrote:
>WANG Cong wrote:
>>>
>>> I have considered myself as a rather unofficial maintainer of this code,
>>> and wouldn't mind make it official now when I actually have a job which
>>> both cares about and actually can support my upstream Linux activities,
>>> which was a major pain for a while.
>>>
>>> Overall, there is a lot of cleanup which really is needed in the i386
>>> boot process; I have done some work on it already, but more is needed.
>>
>> Sounds interesting. Can you point me what needs to be done exactly? Maybe I can help you. ;)
>
>There was a long thread on the linux-virtualization list
>(@lists.linux-foundation.org) just a few days ago. The biggest single
>issue right now is probably how we transition from the bootup page
>tables to the "real" init_mm page tables, but the real-mode code also
>needs a massive overhaul (especially so since this code can and should
>be shared with x86-64); in particular I really want to get rid of the
>insane segment handling, where segments are constantly recalculated for
>no good reason.
>
>For the real-mode stuff, I have some patches already in the works for
>this. Eric W. Biederman has also done a lot of work in this area.
>
> -hpa
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?
Regards!
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