MFC 302698-302704,302706

MFC 302698-302704,302706

302698
    hyperv/vmbus: Add vmbus method for GUID base device probing.

    Reduce the exposure of hv_device.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7024

302699
    hyperv/vmbus: All ivars are read-only; nuke unnecessary write_ivar

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7025

302700
    hyperv/vmbus: Add channel ivar accessor.

    This makes life easier during the transition period to nuke the hv_device.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7026

302701
    hyperv/stor: Avoid the hv_device and nuke the broken get_stor_device

    This paves way to nuke the hv_device, which is actually an unncessary
    indirection.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7027

302702
    hyperv/util: Avoid the hv_device

    This paves way to nuke the hv_device, which is actually an unncessary
    indirection.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7028

302703
    hyperv/vmbus: Deprecate the usage of hv_device.

    This paves way to nuke the hv_device, which is actually an unncessary
    indirection.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7032

302704
    hyperv/hn: Avoid the hv_device

    This paves way to nuke the hv_device, which is actually an unncessary
    indirection.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7033

302706
    hyperv: Get rid of hv_device, which is unnecessary indirection.

    Sponsored by:   Microsoft OSTC
    Differential Revision:  https://reviews.freebsd.org/D7034

git-svn-id: svn://svn.freebsd.org/base/stable/10@307022 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f