K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2018-09-02T21:16:43.654620Z
K 7
svn:log
V 370
Add amd64 mdthread fields needed for the upcoming EFI RT exception
handling.

This is split into a separate commit from the main change to make it
easier to handle possible revert after upcoming KBI freeze.

Reviewed by:	kevans
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Approved by:    re (rgrimes)
Differential revision:	https://reviews.freebsd.org/D16972

END