qemu: Add netdev options to the Device structure

With the NetDev and MACAddress strings, we can now create networking
device drivers.
We also add a unit test for netdev Device creation.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

qemu_test.go

@@ -117,7 +117,7 @@ var deviceNVDIMMString = "-device nvdimm,id=nv0,memdev=mem0"
 
 func TestAppendDeviceNVDIMM(t *testing.T) {
 	device := Device{
-		Type:   "nvdimm",
+		Driver: "nvdimm",
 		ID:     "nv0",
 		MemDev: "mem0",
 	}
@@ -129,7 +129,7 @@ var deviceFSString = "-device virtio-9p-pci,fsdev=workload9p,mount_tag=rootfs"
 
 func TestAppendDeviceFS(t *testing.T) {
 	device := Device{
-		Type:     "virtio-9p-pci",
+		Driver:   "virtio-9p-pci",
 		FSDev:    "workload9p",
 		MountTag: "rootfs",
 	}
@@ -137,6 +137,18 @@ func TestAppendDeviceFS(t *testing.T) {
 	testAppend(device, deviceFSString, t)
 }
 
+var deviceNetworkString = "-device virtio-net-pci,netdev=eth0,mac=01:02:de:ad:be:ef"
+
+func TestAppendDeviceNetwork(t *testing.T) {
+	device := Device{
+		Driver:     "virtio-net-pci",
+		NetDev:     "eth0",
+		MACAddress: "01:02:de:ad:be:ef",
+	}
+
+	testAppend(device, deviceNetworkString, t)
+}
+
 func TestAppendEmptyDevice(t *testing.T) {
 	device := Device{}