On Thu, Nov 26, 2009 at 8:11 AM, Myles Watson <[email protected]> wrote: > >> The basic IRQ handler that is serviced by x86emu module is not >> returned back to caller. >> So must be patched. > I think this patch could use some more explanation, since it's not intuitive > to set SS to initialcs instead of STACK_SEGMENT. It doesn't look right.
Yeah, this is weird. initialcs is f000, stack_segment is 1000. It is hard to believe, but could it be that the stack is more than 64K? Seems unlikely. Having the stack at f000:fffe actually seems a really bad idea as that is the code segment. I wonder why this works at all? Thanks for the patch, however, it seems a very important data point. Another question: where does the emulator put the emulated stack in physical memory? Does it use the real memory at 0x10000 or something else? Because it could be a code overwriting problem again. ron -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
