K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2018-08-19T17:36:50.501687Z
K 7
svn:log
V 568
Fix the MPTable probe code after the 4:4 changes on i386.

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

END