Hi, for the IBM SLOF OpenFirmware used in the YDL PowerStation, i developed a BIOS emulation Layer based on x86emu. It is successfully initialising several VGA cards in the PowerStation.
Since the SLOF version for the PowerStation is released under a BSD license, i tried to integrate it into coreboot-v3 and succeeded today. It initializes the cirrus card of an unpatched qemu 0.9.1-5ubuntu3. (much slower than vm86 but i couldnt get it to initialize with the current x86emu) Using coreinfo as payload, i verified, that the console is working. I would like to know, wether you guys are interested in this code, i think it could basically be a replacement for the current x86emu code. Since x86emu is BSD licensed as well, i think integrating the biosemu code into coreboot should not be a problem? While working for IBM i also tried to initialize a UltraIDE card and almost got it to do some UDMA reads from a disk... and a ethernet card which started to execute the PXE stack. That code however is not released but based on the biosemu code. I am not sure where to go from here... i need to wait for the latest SLOF release to appear on the developerworks website http://www.ibm.com/developerworks/power/pa-slof/ which has some fixes. After that i could create a patch series or git repository for review?? Coming from a PPC background i thought about trying to get coreboot-v3 and the biosemu to run in qemu-ppc... Has anybody tried that before? Would trying this make sense at all? I dont currently have any hardware running coreboot, otherwise i could maybe try to recreate the code to get other PCI cards to initialize... Any thoughts? Cheers, Pattrick -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
