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Re: multiboot2: variable data size


From: Johan Rydberg
Subject: Re: multiboot2: variable data size
Date: Tue, 28 Nov 2006 10:29:15 +0100
User-agent: Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux)

"Yoshinori K. Okuji" <address@hidden> writes:

> On Saturday 25 November 2006 04:33, Hollis Blanchard wrote:
>> That's exactly the point: there will be no difference. Both
>> architectures will use 64-bit types.
>
> No. Both should use 32-bit, because GRUB transfers control in 32-bit mode. 
> Passing 64-bit addresses would be useless in this case. Note that the memory 
> map information is 64-bit even in the previous version of Multiboot Spec.

That will not be true for x86_64-efi, which will have to run in long
mode.

~j

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