Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r303414,r303415,r303417:

r303414:
opt_random.h was removed in r287558 for opt_global.h
r303415:
opt_apic.h is only used on i386.
r303417:
opt_bdg.h was removed in r150636.

Approved by: re (gjb)

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

hyperv: Move machine dependent bits into machine dependent files.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6701

hyperv: Rename some cleaned up/almost cleaned up files

MFC after: 1 week
Sponsored by: Microsoft OSTC

hyperv: Add helpers for busdma(9) operation

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6443

hyperv: Deprecate HYPERV option by moving Hyper-V IDT vector into vmbus

Submitted by: Jun Su <junsu microsoft com>
Reviewed by: jhb, kib, sephe
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5910

Unbreak `make depend` with sys/modules/hyperv/vmbus after r293870

Pointyhat to: sephe

hyperv: implement an event timer

Submitted by: Howard Su <howard0su@gmail.com>
Reviewed by: delphij, royger, adrian
Approved by: adrian (mentor)
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D4676

Fix make depend, apply a bit of style.

Approved by: re (marius)
Reviewed by: grehan

Import Hyper-V paravirtualized drivers from projects/hyperv
branch into head.

Approved by: re@ (hrs)
Obtained from: Microsoft, NetApp, and Citrix.

Microsoft have changed their policy on how the hyper-v code will
be pulled into FreeBSD. From now, FreeBSD will be considered the
upstream repo.

First step: move the drivers away from the contrib area and into
the base system.

A follow-on commit will include the drivers in the amd64 GENERIC kernel.

make glue to hook up the hyperv kmods to the build.

Modified from the original Microsoft versions to pull
code/headers in from the sys/contrib/dev directory.