Re: [PATCH] x86/boot: Reorganize and clean up the BIOS area reservation code

From: Ingo Molnar
Date: Thu Jul 21 2016 - 05:11:43 EST



* H. Peter Anvin <hpa@xxxxxxxxx> wrote:

> We already reserve the first megabyte by default. There is something really
> bizarre about this; the bug report simply doesn't seem to make any sense.

Maybe the first megabyte reservation happens after the SMP trampoline allocation
and hence the EBDA/BIOS reservation matters to our ability to allocate the SMP
trampoline specifically?

Anyway, agreed that we need more information.

Thanks,

Ingo