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Date: Sat, 25 Nov 2006 07:12:09 +0100
To: The development of GRUB 2 <grub-devel@gnu.org>
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From: Tristan Gingold <tgingold@free.fr>
Subject: Re: multiboot2: make multiboot header optional
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On Sat, Nov 25, 2006 at 04:00:28AM +0100, Yoshinori K. Okuji wrote:
> On Thursday 16 November 2006 00:41, tgingold@free.fr wrote:
> > BTW, on ia64 8192 is too small.  Linux and Xen put the ivt (interrupt
> > vector table) at the head of the file because it has the largest alignment
> > requirement (32Kb).  I am not sure there is a big enough hole in the ivt.
> > And Xen has two ivt (-> 64kB).
> > However both Linux and Xen use the ELF format.
> 
> I fail to see why. Why is it necessary to put the table _physically_ at the 
> head?
Because:
* it is done so!
* it has the biggest alignment constraint.

Theorically it is not required, but everyone do that.

Tristan.