diff options
| author | Xuan Zhuo | 2022-10-17 11:25:45 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2022-11-07 19:12:19 +0100 |
| commit | b3a8d6f431730858162feb2dfcee85d0f3484992 (patch) | |
| tree | 785f52e0a54b2c312066faa3ce2ae983b8916231 | |
| parent | virtio: introduce __virtio_queue_reset() (diff) | |
| download | qemu-b3a8d6f431730858162feb2dfcee85d0f3484992.tar.gz qemu-b3a8d6f431730858162feb2dfcee85d0f3484992.tar.xz qemu-b3a8d6f431730858162feb2dfcee85d0f3484992.zip | |
virtio: introduce virtio_queue_reset()
Introduce a new interface function virtio_queue_reset() to implement
reset for vq.
Add a new callback to VirtioDeviceClass for queue reset operation for
each child device.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-3-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/virtio/virtio.c | 11 | ||||
| -rw-r--r-- | include/hw/virtio/virtio.h | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 6f42fcadd7..cf5f9ca387 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2484,6 +2484,17 @@ static void __virtio_queue_reset(VirtIODevice *vdev, uint32_t i) virtio_virtqueue_reset_region_cache(&vdev->vq[i]); } +void virtio_queue_reset(VirtIODevice *vdev, uint32_t queue_index) +{ + VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); + + if (k->queue_reset) { + k->queue_reset(vdev, queue_index); + } + + __virtio_queue_reset(vdev, queue_index); +} + void virtio_reset(void *opaque) { VirtIODevice *vdev = opaque; diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index f41b4a7e64..74d76c1dbc 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -148,6 +148,7 @@ struct VirtioDeviceClass { void (*set_config)(VirtIODevice *vdev, const uint8_t *config); void (*reset)(VirtIODevice *vdev); void (*set_status)(VirtIODevice *vdev, uint8_t val); + void (*queue_reset)(VirtIODevice *vdev, uint32_t queue_index); /* For transitional devices, this is a bitmap of features * that are only exposed on the legacy interface but not * the modern one. @@ -286,6 +287,7 @@ int virtio_queue_set_host_notifier_mr(VirtIODevice *vdev, int n, MemoryRegion *mr, bool assign); int virtio_set_status(VirtIODevice *vdev, uint8_t val); void virtio_reset(void *opaque); +void virtio_queue_reset(VirtIODevice *vdev, uint32_t queue_index); void virtio_update_irq(VirtIODevice *vdev); int virtio_set_features(VirtIODevice *vdev, uint64_t val); |