Re: multiboot2: make multiboot header optional

[tgingold]

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

> On Tuesday 14 November 2006 23:58, Hollis Blanchard wrote:
> > I would like to make the in-kernel multiboot header optional. If it's an
> > ELF file, we can load it, even if it doesn't have the header. We can
> > also pass the address of the multiboot tags to its entry point (it can't
> > hurt anything).
>
> I prefer to keep a multiboot header, because GRUB may not detect an error
> that
> the offset of a multiboot header is beyond 8192 bytes.
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.

Tristan.