Re: [Qemu-devel] osx bootloader

[BALATON Zoltan]

On Tue, 28 Jan 2014, Gabriel L. Somlo wrote:
> But now I think it's starting to make sense. Chameleon's stage2
> loader, named "boot" (which we're starting via "-kernel boot", and
> which is the only piece of Chameleon we need) is apparently equivalent
> to Apple's "boot.efi", which it bypasses, and which I think is what

AFAIK Chameleon's boot is based on Apple's older, pre-EFI boot loader 
(http://opensource.apple.com/source/boot/boot-132/) that performs similar 
functions but does not require EFI and works on BIOS based machines. It is 
updated to work with recent EFI-only releases, also provides some EFI 
stuff that's needed by OS X (fake_efi) and has some means of patching up 
non-Apple hardware to work with OS X. To make sure it's not trying to 
patch anything try to remove all modules (may need to recompile to get rid 
of built-in modules) and make sure all *Enabler options are disabled.

> Alex was talking about (i.e., eventually getting TianoCore to pick
> up and run "boot.efi" as left behind by the vanilla OS X installer).

I've also found this:
http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=OvmfPkg
which might be what we need for using Apple's boot.efi but I don't know 
how ready is it and if it works with OS X.

Regards,
BALATON Zoltan