diff options
| author | Amit Shah <amit.shah@redhat.com> | 2014-07-16 16:38:50 +0530 |
|---|---|---|
| committer | Amit Shah <amit.shah@redhat.com> | 2014-08-18 22:42:37 +0530 |
| commit | a1857ad1acbddbefe7ce8adb24b0e40991c5c38f (patch) | |
| tree | 8a9949bd2e3c2d8360adba1cc63e451fbbbdab47 | |
| parent | 08ab59770da57648bfb8fc9be37f0ef7fb50b0f9 (diff) | |
| download | qemu-a1857ad1acbddbefe7ce8adb24b0e40991c5c38f.tar.gz | |
virtio-serial: create a linked list of all active devices
To ensure two virtserialports don't get added to the system with the
same 'name' parameter, we need to access all the ports on all the
devices added, and compare the names.
We currently don't have a list of all VirtIOSerial devices added to the
system. This commit adds a simple linked list in which devices are put
when they're initialized, and removed when they go away.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
| -rw-r--r-- | hw/char/virtio-serial-bus.c | 10 | ||||
| -rw-r--r-- | include/hw/virtio/virtio-serial.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c index 23123b730e..49a9867431 100644 --- a/hw/char/virtio-serial-bus.c +++ b/hw/char/virtio-serial-bus.c @@ -26,6 +26,10 @@ #include "hw/virtio/virtio-serial.h" #include "hw/virtio/virtio-access.h" +struct VirtIOSerialDevices { + QLIST_HEAD(, VirtIOSerial) devices; +} vserdevices; + static VirtIOSerialPort *find_port_by_id(VirtIOSerial *vser, uint32_t id) { VirtIOSerialPort *port; @@ -983,6 +987,8 @@ static void virtio_serial_device_realize(DeviceState *dev, Error **errp) */ register_savevm(dev, "virtio-console", -1, 3, virtio_serial_save, virtio_serial_load, vser); + + QLIST_INSERT_HEAD(&vserdevices.devices, vser, next); } static void virtio_serial_port_class_init(ObjectClass *klass, void *data) @@ -1011,6 +1017,8 @@ static void virtio_serial_device_unrealize(DeviceState *dev, Error **errp) VirtIODevice *vdev = VIRTIO_DEVICE(dev); VirtIOSerial *vser = VIRTIO_SERIAL(dev); + QLIST_REMOVE(vser, next); + unregister_savevm(dev, "virtio-console", vser); g_free(vser->ivqs); @@ -1035,6 +1043,8 @@ static void virtio_serial_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); + QLIST_INIT(&vserdevices.devices); + dc->props = virtio_serial_properties; set_bit(DEVICE_CATEGORY_INPUT, dc->categories); vdc->realize = virtio_serial_device_realize; diff --git a/include/hw/virtio/virtio-serial.h b/include/hw/virtio/virtio-serial.h index 4746312a83..a679e54aab 100644 --- a/include/hw/virtio/virtio-serial.h +++ b/include/hw/virtio/virtio-serial.h @@ -202,6 +202,8 @@ struct VirtIOSerial { QTAILQ_HEAD(, VirtIOSerialPort) ports; + QLIST_ENTRY(VirtIOSerial) next; + /* bitmap for identifying active ports */ uint32_t *ports_map; |