Using GRUB2 with CoreBoot (formerly known as LinuxBIOS) 1/4: Find tables

[Patrick Georgi]

Hi,

I had several issues with getting GRUB2 to run on CoreBoot (aka 
LinuxBIOS), which I'll describe here.

They're rather trivial (I have patches), so someone with a working 
relationship with the FSF, experience with the GRUB2 codebase and C, and 
15 minutes time for each issue should be able to fix these issues in a 
way suitable for GRUB2 mainline.

First issue: Right now, grub2 has a hard coded location for the lbtables 
and gives up if they're not there.
According to the coreboot sources, these tables can start anywhere 
between 0x500 and 0x1000, or between 0xf0000 and 0x100000 at a 16 byte 
boundary.
To find it, checking for the "LBIO"-signature (as is done already) should 
be enough.


Regards,
Patrick Georgi