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Date: Thu, 12 Jun 2008 15:06:32 -0700
From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "Paul Jackson" <pj@sgi.com>
Subject: Re: Confusions with reserve_early, reserve_bootmem, e820, efi, ... on x86_64
Cc: "H. Peter Anvin" <hpa@zytor.com>, andi@firstfloor.org, mingo@elte.hu,
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On Thu, Jun 12, 2008 at 2:52 PM, Paul Jackson <pj@sgi.com> wrote:
> hpa writes:
>> It's probably safer to reserve the EBDA even with EFI; it's only a page
>> or so so it doesn't matter much.
>
> Reserving EBDA with EFI is fine by what little I know.
>
> But the current code doesn't like it -- if the EFI memmap range is inside
> the EBDA range, then the reserve_early() routine panics with:
>
>    "Overlapping early reservations"
>
> Something needs tweaking here somehow ... and I'm not the one to know what.

what is addr that the EFI memmap should be according to spec?

YH