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authorKONRAD Frederic <fred.konrad@greensocs.com>2013-04-09 14:53:30 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2013-04-15 10:22:04 -0500
commit2cd2b016a145c57204ab629d2876b7e0a931ab12 (patch)
tree7c8a8dc27d4ef15abb6166f086883612fed1697b /hw/char
parentf574fa8b0700bd5a3a400dbdc3bd514eaf53e005 (diff)
virtio-serial: add the virtio-serial device.
Create virtio-serial which extends virtio-device, so it can be connected on virtio-bus. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Amit Shah <amit.shah@redhat.com> Message-id: 1365512016-21944-2-git-send-email-fred.konrad@greensocs.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/char')
-rw-r--r--hw/char/virtio-serial-bus.c95
1 files changed, 88 insertions, 7 deletions
diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
index 1dba8ab2c6..506377e961 100644
--- a/hw/char/virtio-serial-bus.c
+++ b/hw/char/virtio-serial-bus.c
@@ -887,10 +887,12 @@ static int virtser_port_qdev_exit(DeviceState *qdev)
return 0;
}
-VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf)
+static VirtIODevice *virtio_serial_common_init(DeviceState *dev,
+ virtio_serial_conf *conf,
+ VirtIODevice **pvdev)
{
VirtIOSerial *vser;
- VirtIODevice *vdev;
+ VirtIODevice *vdev = *pvdev;
uint32_t i, max_supported_ports;
if (!conf->max_virtserial_ports)
@@ -904,11 +906,22 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf)
return NULL;
}
- vdev = virtio_common_init("virtio-serial", VIRTIO_ID_CONSOLE,
- sizeof(struct virtio_console_config),
- sizeof(VirtIOSerial));
-
- vser = DO_UPCAST(VirtIOSerial, vdev, vdev);
+ /*
+ * We have two cases here: the old virtio-serial-pci device, and the
+ * refactored virtio-serial.
+ */
+ if (vdev == NULL) {
+ /* virtio-serial-pci */
+ vdev = virtio_common_init("virtio-serial", VIRTIO_ID_CONSOLE,
+ sizeof(struct virtio_console_config),
+ sizeof(VirtIOSerial));
+ vser = DO_UPCAST(VirtIOSerial, vdev, vdev);
+ } else {
+ /* virtio-serial */
+ virtio_init(vdev, "virtio-serial", VIRTIO_ID_CONSOLE,
+ sizeof(struct virtio_console_config));
+ vser = VIRTIO_SERIAL(vdev);
+ }
/* Spawn a new virtio-serial bus on which the ports will ride as devices */
qbus_create_inplace(&vser->bus.qbus, TYPE_VIRTIO_SERIAL_BUS, dev, NULL);
@@ -972,6 +985,16 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf)
return vdev;
}
+/*
+ * The two following functions will be cleaned up at the end.
+ */
+
+VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf)
+{
+ VirtIODevice *vdev = NULL;
+ return virtio_serial_common_init(dev, conf, &vdev);
+}
+
void virtio_serial_exit(VirtIODevice *vdev)
{
VirtIOSerial *vser = DO_UPCAST(VirtIOSerial, vdev, vdev);
@@ -1009,10 +1032,68 @@ static const TypeInfo virtio_serial_port_type_info = {
.class_init = virtio_serial_port_class_init,
};
+static int virtio_serial_device_init(VirtIODevice *vdev)
+{
+ DeviceState *qdev = DEVICE(vdev);
+ VirtIOSerial *vser = VIRTIO_SERIAL(vdev);
+ virtio_serial_conf *conf = &(vser->serial);
+ if (virtio_serial_common_init(qdev, conf, &vdev) == NULL) {
+ return -1;
+ }
+ return 0;
+}
+
+static int virtio_serial_device_exit(DeviceState *dev)
+{
+ VirtIOSerial *vser = VIRTIO_SERIAL(dev);
+ VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+
+ unregister_savevm(dev, "virtio-console", vser);
+
+ g_free(vser->ivqs);
+ g_free(vser->ovqs);
+ g_free(vser->ports_map);
+ if (vser->post_load) {
+ g_free(vser->post_load->connected);
+ qemu_del_timer(vser->post_load->timer);
+ qemu_free_timer(vser->post_load->timer);
+ g_free(vser->post_load);
+ }
+ virtio_common_cleanup(vdev);
+ return 0;
+}
+
+static Property virtio_serial_properties[] = {
+ DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtIOSerial, serial),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_serial_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+ dc->exit = virtio_serial_device_exit;
+ dc->props = virtio_serial_properties;
+ vdc->init = virtio_serial_device_init;
+ vdc->get_features = get_features;
+ vdc->get_config = get_config;
+ vdc->set_config = set_config;
+ vdc->set_status = set_status;
+ vdc->reset = vser_reset;
+}
+
+static const TypeInfo virtio_device_info = {
+ .name = TYPE_VIRTIO_SERIAL,
+ .parent = TYPE_VIRTIO_DEVICE,
+ .instance_size = sizeof(VirtIOSerial),
+ .class_init = virtio_serial_class_init,
+};
+
static void virtio_serial_register_types(void)
{
type_register_static(&virtser_bus_info);
type_register_static(&virtio_serial_port_type_info);
+ type_register_static(&virtio_device_info);
}
type_init(virtio_serial_register_types)