Re: Confusions with reserve_early, reserve_bootmem, e820, efi, ... on x86_64

[Yinghai Lu]

On Thu, Jun 12, 2008 at 3:06 AM, Paul Jackson <pj@xxxxxxx> wrote:
> Bernhard, Johannes, Huang, and Yinghai:
>
> I am running into some complications with reserve_bootmem vs
> reserve_early, and a reserve_early of "EFI memmap" in the
> efi_reserve_early() routine conflicting with reserve_early of
> "BIOS reserved" in reserve_ebda_region().
>
> This is on x86_64 arch, using Ingo's x86-latest, with possibly
> still buggy EFI firmware in a lab system I'm helping to develop.
>
> I have three concerns:
>
>  1) The find_overlapped_early() check called from reserve_early is
>    failing on my lab system , causing panic, when it tries to
>    register "EFI memmap" at addresses <0xe0660, 0xe0778> that
>    overlaps with the "BIOS reserved" early reserve at addresses
>    <0x9f000, 0x100000>

then reserve_ebda_region() need to be fixed.

YH
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