K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-05-23T07:06:53.308821Z
K 7
svn:log
V 317
hyperv: Move Hypercall setup to an early place.

It does not belong to the vmbus.

While I'm here rework the Hypercall setup, e.g. use busdma(9)
and avoid bit fields.

Discussed with:	Jun Su <junsu microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6445

END