Import virtio base, PCI front-end, and net/block/balloon drivers.

Tested on Qemu/KVM, VirtualBox, and BHyVe.

Currently built as modules-only on i386/amd64. Man pages not yet hooked
up, pending review.

Submitted by:	Bryan Venteicher  bryanv at daemoninthecloset dot org
Reviewed by:	bz
MFC after:	4 weeks or so

7 files changed, 213 insertions, 0 deletions

diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index c3b13e1..36fc5ca 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -317,6 +317,7 @@ SUBDIR=	${_3dfx} \
 	usb \
 	utopia \
 	${_vesa} \
+	${_virtio} \
 	vge \
 	vkbd \
 	${_vpo} \
@@ -537,6 +538,7 @@ _padlock=	padlock
 _s3=		s3
 _twa=		twa
 _vesa=		vesa
+_virtio=	virtio
 _x86bios=	x86bios
 .elif ${MACHINE} == "pc98"
 _canbepm=	canbepm
@@ -636,6 +638,7 @@ _sppp=		sppp
 _tpm=		tpm
 _twa=		twa
 _vesa=		vesa
+_virtio=	virtio
 _vxge=  	vxge
 _x86bios=	x86bios
 _wi=		wi
diff --git a/sys/modules/virtio/Makefile b/sys/modules/virtio/Makefile
new file mode 100644
index 0000000..9c9457a
--- /dev/null
+++ b/sys/modules/virtio/Makefile
@@ -0,0 +1,28 @@
+#
+# $FreeBSD$
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+SUBDIR=	virtio pci network block balloon
+
+.include <bsd.subdir.mk>
diff --git a/sys/modules/virtio/balloon/Makefile b/sys/modules/virtio/balloon/Makefile
new file mode 100644
index 0000000..dc14cbc
--- /dev/null
+++ b/sys/modules/virtio/balloon/Makefile
@@ -0,0 +1,36 @@
+#
+# $FreeBSD$
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+.PATH: ${.CURDIR}/../../../dev/virtio/balloon
+
+KMOD=	virtio_balloon
+SRCS=	virtio_balloon.c
+SRCS+=	virtio_bus_if.h virtio_if.h
+SRCS+=	bus_if.h device_if.h 
+
+MFILES=	kern/bus_if.m kern/device_if.m \
+	dev/virtio/virtio_bus_if.m dev/virtio/virtio_if.m
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/virtio/block/Makefile b/sys/modules/virtio/block/Makefile
new file mode 100644
index 0000000..5df9eab
--- /dev/null
+++ b/sys/modules/virtio/block/Makefile
@@ -0,0 +1,36 @@
+#
+# $FreeBSD$
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+.PATH: ${.CURDIR}/../../../dev/virtio/block
+
+KMOD=	virtio_blk
+SRCS=	virtio_blk.c
+SRCS+=	virtio_bus_if.h virtio_if.h
+SRCS+=	bus_if.h device_if.h 
+
+MFILES=	kern/bus_if.m kern/device_if.m \
+	dev/virtio/virtio_bus_if.m dev/virtio/virtio_if.m
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/virtio/network/Makefile b/sys/modules/virtio/network/Makefile
new file mode 100644
index 0000000..8463309c
--- /dev/null
+++ b/sys/modules/virtio/network/Makefile
@@ -0,0 +1,36 @@
+#
+# $FreeBSD$
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+.PATH: ${.CURDIR}/../../../dev/virtio/network
+
+KMOD=	if_vtnet
+SRCS=	if_vtnet.c
+SRCS+=	virtio_bus_if.h virtio_if.h
+SRCS+=	bus_if.h device_if.h 
+
+MFILES=	kern/bus_if.m kern/device_if.m \
+	dev/virtio/virtio_bus_if.m dev/virtio/virtio_if.m
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/virtio/pci/Makefile b/sys/modules/virtio/pci/Makefile
new file mode 100644
index 0000000..a58d64c
--- /dev/null
+++ b/sys/modules/virtio/pci/Makefile
@@ -0,0 +1,36 @@
+#
+# $FreeBSD$
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+.PATH: ${.CURDIR}/../../../dev/virtio/pci
+
+KMOD=	virtio_pci
+SRCS=	virtio_pci.c
+SRCS+=	virtio_bus_if.h virtio_if.h 
+SRCS+=	bus_if.h device_if.h pci_if.h
+
+MFILES=	kern/bus_if.m kern/device_if.m dev/pci/pci_if.m \
+	dev/virtio/virtio_bus_if.m dev/virtio/virtio_if.m
+
+.include <bsd.kmod.mk>
diff --git a/sys/modules/virtio/virtio/Makefile b/sys/modules/virtio/virtio/Makefile
new file mode 100644
index 0000000..e8973c0
--- /dev/null
+++ b/sys/modules/virtio/virtio/Makefile
@@ -0,0 +1,38 @@
+#
+# $FreeBSD$
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+.PATH: ${.CURDIR}/../../../dev/virtio
+
+KMOD=	virtio
+
+SRCS=	virtio.c virtqueue.c
+SRCS+=	virtio_bus_if.c virtio_bus_if.h
+SRCS+=	virtio_if.c virtio_if.h
+SRCS+=	bus_if.h device_if.h 
+
+MFILES=	kern/bus_if.m kern/device_if.m \
+	dev/virtio/virtio_bus_if.m dev/virtio/virtio_if.m
+
+.include <bsd.kmod.mk>