From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/kernel/setup.c

    If generic enabled legacy VGA or kbd - disable them
    Slightly different check for work arounds and only do it once
    If there is no klconfig info and we are in the simulator - ignore it
    Update the pxm_to_nasid() routine. It failed for SP configurations and some
    SMP configurations where M-bricks used pxm numbers lower that the first
    c-brick.
    If we don't find the cpu for pxm, search the memblks for it.