diff --git a/sys/amd64/conf/GENERIC b/sys/amd64/conf/GENERIC
index 7aff1e8..8715a1c 100644
--- a/sys/amd64/conf/GENERIC
+++ b/sys/amd64/conf/GENERIC
@@ -340,3 +340,11 @@ device		snd_via8233	# VIA VT8233x Audio
 device		mmc		# MMC/SD bus
 device		mmcsd		# MMC/SD memory card
 device		sdhci		# Generic PCI SD Host Controller
+
+# VirtIO support
+device		virtio		# Generic VirtIO bus (required)
+device		virtio_pci	# VirtIO PCI device
+device		vtnet		# VirtIO Ethernet device
+device		virtio_blk	# VirtIO Block device
+device		virtio_scsi	# VirtIO SCSI device
+device		virtio_balloon	# VirtIO Memory Balloon device
diff --git a/sys/amd64/conf/NOTES b/sys/amd64/conf/NOTES
index 6562981..a4371f7 100644
--- a/sys/amd64/conf/NOTES
+++ b/sys/amd64/conf/NOTES
@@ -440,6 +440,15 @@ device		safe		# SafeNet 1141
 options 	SAFE_DEBUG	# enable debugging support: hw.safe.debug
 options 	SAFE_RNDTEST	# enable rndtest support
 
+#
+# VirtIO support
+device		virtio		# Generic VirtIO bus (required)
+device		virtio_pci	# VirtIO PCI Interface
+device		vtnet		# VirtIO Ethernet device
+device		virtio_blk	# VirtIO Block device
+device		virtio_scsi	# VirtIO SCSI device
+device		virtio_balloon	# VirtIO Memory Balloon device
+
 #####################################################################
 
 #
diff --git a/sys/conf/files b/sys/conf/files
index c742db3..b0132be 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -2270,15 +2270,6 @@ dev/utopia/idtphy.c		optional utopia
 dev/utopia/suni.c		optional utopia
 dev/utopia/utopia.c		optional utopia
 dev/vge/if_vge.c		optional vge
-#
-# virtio support
-#
-dev/virtio/pci/virtio_pci.c    optional vtnet
-dev/virtio/virtio.c            optional vtnet
-dev/virtio/virtqueue.c         optional vtnet
-dev/virtio/network/if_vtnet.c  optional vtnet
-dev/virtio/virtio_bus_if.m     optional vtnet
-dev/virtio/virtio_if.m         optional vtnet
 
 dev/vkbd/vkbd.c			optional vkbd
 dev/vr/if_vr.c			optional vr pci
diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index b6a474e..56c7437 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -390,6 +390,15 @@ dev/isci/scil/scif_sas_task_request.c				optional isci
 dev/isci/scil/scif_sas_task_request_state_handlers.c		optional isci
 dev/isci/scil/scif_sas_task_request_states.c			optional isci
 dev/isci/scil/scif_sas_timer.c					optional isci
+dev/virtio/virtio.c			optional	virtio
+dev/virtio/virtqueue.c			optional	virtio
+dev/virtio/virtio_bus_if.m		optional	virtio
+dev/virtio/virtio_if.m			optional	virtio
+dev/virtio/pci/virtio_pci.c		optional	virtio_pci virtio pci
+dev/virtio/network/if_vtnet.c		optional	vtnet virtio
+dev/virtio/block/virtio_blk.c		optional	virtio_blk virtio
+dev/virtio/balloon/virtio_balloon.c	optional	virtio_balloon virtio
+dev/virtio/scsi/virtio_scsi.c		optional	virtio_scsi virtio scbus
 isa/syscons_isa.c		optional	sc
 isa/vga_isa.c			optional	vga
 kern/kern_clocksource.c		standard
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index d4df01d..5e2eeef 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -371,6 +371,15 @@ dev/isci/scil/scif_sas_task_request.c				optional isci
 dev/isci/scil/scif_sas_task_request_state_handlers.c		optional isci
 dev/isci/scil/scif_sas_task_request_states.c			optional isci
 dev/isci/scil/scif_sas_timer.c					optional isci
+dev/virtio/virtio.c			optional	virtio
+dev/virtio/virtqueue.c			optional	virtio
+dev/virtio/virtio_bus_if.m		optional	virtio
+dev/virtio/virtio_if.m			optional	virtio
+dev/virtio/pci/virtio_pci.c		optional	virtio_pci virtio pci
+dev/virtio/network/if_vtnet.c		optional	vtnet virtio
+dev/virtio/block/virtio_blk.c		optional	virtio_blk virtio
+dev/virtio/balloon/virtio_balloon.c	optional	virtio_balloon virtio
+dev/virtio/scsi/virtio_scsi.c		optional	virtio_scsi virtio scbus
 i386/acpica/acpi_machdep.c	optional acpi
 acpi_wakecode.o			optional acpi				\
 	dependency	"$S/i386/acpica/acpi_wakecode.S assym.s"	\
diff --git a/sys/i386/conf/GENERIC b/sys/i386/conf/GENERIC
index 76d09dd..824832b 100644
--- a/sys/i386/conf/GENERIC
+++ b/sys/i386/conf/GENERIC
@@ -354,3 +354,11 @@ device		snd_via8233	# VIA VT8233x Audio
 device		mmc		# MMC/SD bus
 device		mmcsd		# MMC/SD memory card
 device		sdhci		# Generic PCI SD Host Controller
+
+# VirtIO support
+device		virtio		# Generic VirtIO bus (required)
+device		virtio_pci	# VirtIO PCI device
+device		vtnet		# VirtIO Ethernet device
+device		virtio_blk	# VirtIO Block device
+device		virtio_scsi	# VirtIO SCSI device
+device		virtio_balloon	# VirtIO Memory Balloon device
diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index 1868595..95ccd4e 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -771,6 +771,15 @@ device		glxiic		# AMD Geode LX CS5536 System Management Bus
 #
 device		glxsb		# AMD Geode LX Security Block
 
+#
+# VirtIO support
+device		virtio		# Generic VirtIO bus (required)
+device		virtio_pci	# VirtIO PCI Interface
+device		vtnet		# VirtIO Ethernet device
+device		virtio_blk	# VirtIO Block device
+device		virtio_scsi	# VirtIO SCSI device
+device		virtio_balloon	# VirtIO Memory Balloon device
+
 #####################################################################
 
 #