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

[Ingo Molnar]

* H. Peter Anvin <h...@zytor.com> 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.

Btw., are you sure about this? We do reserve the first 64KB:

config X86_RESERVE_LOW
        int "Amount of low memory, in kilobytes, to reserve for the BIOS"
        default 64
        range 4 640
        ---help---
          Specify the amount of low memory to reserve for the BIOS.

But I cannot find the place that allocates the first 1MB.

Thanks,

        Ingo