Hi,
I've been exploring OpenFirmware on x86, under qemu with coreboot.
I've been trying to run the hello.elf example. I have trouble loading it from an ext2 file system, I get an message:
ok report-disk ok boot /pci/pci-ide@1,1/ide@0/disk@0:\hello.elf Boot device: /pci/pci-ide@1,1/ide@0/disk@0:\hello.elf Arguments: root=/dev/ram0 mount_ramdisk=1 Unimplemented package interface procedure Undefined word encountered ok
I also tried using using qemu's -option-rom function to throw a raw binary into the address space that i could then place in memory with 'cmove' and then tried to 'branch' or 'execute' it. This method probably isn't worth pursuing much, even thought it did get me the furthest.
The problem there was that the pointer to the openfirmware interface function wasn't getting passed in %eax, but then again, I wasn't using 'boot'.
Anyway, tips on this would be appreciated.
Jonathan Kollasch