diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-10-21 22:48:08 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-10-30 19:51:32 +0200 |
| commit | 8e93cef14e6f32adf6914b30b096039e6264f0e3 (patch) | |
| tree | abf77c2c554b5efcda21167689f61c9e04f4a0b2 /include/hw/virtio | |
| parent | ff4c07df67f098234d9e49850435ccb49b8cbbdc (diff) | |
| download | qemu-8e93cef14e6f32adf6914b30b096039e6264f0e3.zip | |
virtio: introduce virtio_device_ioeventfd_enabled
This will be used to forbid iothread configuration when the
proxy does not allow using ioeventfd. To simplify the implementation,
change the direction of the ioeventfd_disabled callback too.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/virtio')
| -rw-r--r-- | include/hw/virtio/virtio-bus.h | 8 | ||||
| -rw-r--r-- | include/hw/virtio/virtio.h | 1 |
2 files changed, 6 insertions, 3 deletions
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h index aa326e11d9..521fac7a1a 100644 --- a/include/hw/virtio/virtio-bus.h +++ b/include/hw/virtio/virtio-bus.h @@ -71,10 +71,10 @@ typedef struct VirtioBusClass { int (*query_nvectors)(DeviceState *d); /* * ioeventfd handling: if the transport implements ioeventfd_assign, - * it must implement ioeventfd_disabled as well. + * it must implement ioeventfd_enabled as well. */ - /* Returns true if the ioeventfd has been disabled for the device. */ - bool (*ioeventfd_disabled)(DeviceState *d); + /* Returns true if the ioeventfd is enabled for the device. */ + bool (*ioeventfd_enabled)(DeviceState *d); /* * Assigns/deassigns the ioeventfd backing for the transport on * the device for queue number n. Returns an error value on @@ -131,6 +131,8 @@ static inline VirtIODevice *virtio_bus_get_device(VirtioBusState *bus) return (VirtIODevice *)qdev; } +/* Return whether the proxy allows ioeventfd. */ +bool virtio_bus_ioeventfd_enabled(VirtioBusState *bus); /* Start the ioeventfd. */ int virtio_bus_start_ioeventfd(VirtioBusState *bus); /* Stop the ioeventfd. */ diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 27e515118b..12292bbb67 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -273,6 +273,7 @@ void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign, bool with_irqfd); int virtio_device_start_ioeventfd(VirtIODevice *vdev); void virtio_device_stop_ioeventfd(VirtIODevice *vdev); +bool virtio_device_ioeventfd_enabled(VirtIODevice *vdev); EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq); void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign, bool set_handler); |