Messages in this thread | | | Date | Thu, 21 Jul 2016 18:18:07 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86/boot: Reorganize and clean up the BIOS area reservation code |
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* Andy Lutomirski <luto@amacapital.net> wrote:
> It would be very easy to implement this if we could handle overlapping memblocks > precisely or set a lower limit on the memblock allocator. Then we could block > off everything below 1MB or 2MB very early and then unblock it or temporarily > change the lower limit and ask for a single page for the trampoline after that.
So my suggestion was/is to _permanently_ allocate the SMP trampoline page, and leave it also reserved.
'Reserving' a memory area is really just a kernel internal matter. We can still use it. No need to unreserve/allocate/re-reserve ... unless I'm missing something.
Thanks,
Ingo
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