• jhb's avatar
    Fix the MPTable probe code after the 4:4 changes on i386. · 4f91615a
    jhb authored
    The MPTable probe code was using PMAP_MAP_LOW as the PA -> VA offset
    when searching for the table signature but still using KERNBASE once
    it had found the table.  As a result, the mpfps table pointed into a
    random part of the kernel text instead of the actual MP Table.
    Rather than adding more #ifdef's, use BIOS_PADDRTOVADDR from
    <machine/pc/bios.h> which already uses PMAP_MAP_LOW on i386 and KERNBASE
    on amd64.
    Reviewed by:	kib
    MFC after:	1 week
    Differential Revision:	https://reviews.freebsd.org/D16802