Eric W. Biederman wrote:
> To pick a nit. Bootloaders should never use ELF sections only ELF segments.
> In particular that is what the note segment is for.
>
Yes, that's definitely the right answer in this case. I'll give this a
spin and see how it looks.
> Just to verify, the goal when we are done is to have one binary
> kernel that will run on real hardware, under Xen, and paravirtualized VMware,
> and on any other hypervisor that comes along.
>
Correct. Though as you point out, you may need both the bzImage and the
vmlinux files from a particular build for file-format reasons.
> As I understand it. That goal requires a bzImage with an ELF header :)
> Which we will have shortly.
>
OK. Is there some documentation or discussion I can look at to see how
that would fit together? What's actually in the ELF header?
> And no the kernel will not be multiboot as that is not an extensible standard.
> Which makes multiboot useless, in the long term.
>
Xen and dom0 relies on grub to load the hypervisor, the dom0 kernel and
the dom0 initrd, which I guess uses multiboot. But we don't otherwise
rely on it.
J
