Fix some modules to export more used symbols

(cherry picked from commit 5bb3134a8c21cb87b30e135ef168483f0333dabb)

hyperv: Fix vmbus after the i386 4/4 split

The vmbus ISR needs to live in a trampoline. Dynamically allocating a
trampoline at driver initialization time poses some difficulties due to
the fact tha

hyperv: Fix vmbus after the i386 4/4 split

The vmbus ISR needs to live in a trampoline. Dynamically allocating a
trampoline at driver initialization time poses some difficulties due to
the fact that the KENTER macro assumes that the offset relative to
tramp_idleptd is fixed at static link time. Another problem is that
native_lapic_ipi_alloc() uses setidt(), which assumes a fixed trampoline
offset.

Rather than fight this, move the Hyper-V ISR to i386/exception.s. Add a
new HYPERV kernel option to make this optional, and configure it by
default on i386. This is sufficient to make use of vmbus(4) after the
4/4 split. Note that vmbus cannot be loaded dynamically and both the
HYPERV option and device must be configured together. I think this is
not too onerous a requirement, since vmbus(4) was previously
non-functional.

Reported by: Harry Schmalzbauer <[email protected]>
Tested by: Harry Schmalzbauer <[email protected]>
Reviewed by: whu, kib
Sponsored by: The FreeBSD Foundation

(cherry picked from commit 97993d1ebf592ac6689a498d5d0d2afb46758680)

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Move most of the contents of opt_compat.h to opt_global.h.

opt_compat.h is mentioned in nearly 180 files. In-progress network
driver compabibility improvements may add over 100 more so this is
close

Move most of the contents of opt_compat.h to opt_global.h.

opt_compat.h is mentioned in nearly 180 files. In-progress network
driver compabibility improvements may add over 100 more so this is
closer to "just about everywhere" than "only some files" per the
guidance in sys/conf/options.

Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of
sys/compat/linux/*.c. A fake _COMPAT_LINUX option ensure opt_compat.h
is created on all architectures.

Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the
set of compiled files.

Reviewed by: kib, cem, jhb, jtl
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14941

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Rename assym.s to assym.inc

assym is only to be included by other .s files, and should never
actually be assembled by itself.

Reviewed by: imp, bdrewery (earlier)
Sponsored by: The FreeBSD Foundati

Rename assym.s to assym.inc

assym is only to be included by other .s files, and should never
actually be assembled by itself.

Reviewed by: imp, bdrewery (earlier)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D14180

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Move assym.s to DPSRCS in vmbus module

assym.s is only to be included by other .s files, and should not
actually be assembled by itself.

hyperv/vmbus: Reorganize vmbus device tree

For GEN1 Hyper-V, vmbus is attached to pcib0, which contains the
resources for PCI passthrough and SR-IOV. There is no
acpi_syscontainer0 on GEN1 Hyper-V.

hyperv/vmbus: Reorganize vmbus device tree

For GEN1 Hyper-V, vmbus is attached to pcib0, which contains the
resources for PCI passthrough and SR-IOV. There is no
acpi_syscontainer0 on GEN1 Hyper-V.

For GEN2 Hyper-V, vmbus is attached to acpi_syscontainer0, which
contains the resources for PCI passthrough and SR-IOV. There is
no pcib0 on GEN2 Hyper-V.

The ACPI VMBUS device now only holds its _CRS, which is empty as
of this commit; its existence is mainly for upward compatibility.

Device tree structure is suggested by jhb@.

Tested-by: dexuan@
Collabrated-wth: dexuan@
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D10565

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sys/modules: normalize .CURDIR-relative paths to SRCTOP

This simplifies make output/logic

Tested with: `cd sys/modules; make ALL_MODULES=` on amd64
MFC after: 1 month
Sponsored by: Dell EMC Isilon

hyperv/pcib: Fix the build for some kernel configs

Add the dependency on pci explicitly for the pcib and vmbus drivers.
The related Makefiles are updated accordingly too.

Reviewed by: sephe
Approve

hyperv/pcib: Fix the build for some kernel configs

Add the dependency on pci explicitly for the pcib and vmbus drivers.
The related Makefiles are updated accordingly too.

Reviewed by: sephe
Approved by: sephe (mentor)
MFC after: 1 week
Sponsored by: Microsoft

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hyperv/vmbus: Add missing vmbus_if.c to module build.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8067

hyperv/vmbus: Add APIs for various types of transactions.

Reviewed by: Jun Su <junsu microsoft com>
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7456

opt_apic.h is only used on i386.

MFC after: 3 days
Sponsored by: EMC / Isilon Storage Division

hyperv/vmbus: Rename cleaned up bufring code

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7318

hyperv/vmbus: Rename laundered vmbus channel code

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7232

hyperv/vmbus: Merge hv_channel_mgmt.c into hv_channel.c

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7126

hyperv/vmbus: Merge hv_connection.c into hv_channel.c

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7004

hyperv/vmbus: Rework vmbus version accessing.

Instead of global variable, vmbus version is accessed through
a vmbus DEVMETHOD now.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revisi

hyperv/vmbus: Rework vmbus version accessing.

Instead of global variable, vmbus version is accessed through
a vmbus DEVMETHOD now.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D6953

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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: ht

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

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

Pointyhat to: sephe

hyperv: implement an event timer

Submitted by: Howard Su <[email protected]>
Reviewed by: delphij, royger, adrian
Approved by: adrian (mentor)
Sponsored by: Microsoft OSTC
Differential Revisio

hyperv: implement an event timer

Submitted by: Howard Su <[email protected]>
Reviewed by: delphij, royger, adrian
Approved by: adrian (mentor)
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D4676

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Fix make depend, apply a bit of style.

Approved by: re (marius)
Reviewed by: grehan

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 ar

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.

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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.