Displaying 3 results from an estimated 3 matches for "virtqueue_reset_free_head".
2020 Apr 02
0
[PATCH v4 7/7] tools/virtio: Make --reset reset ring idx
...8d48..f9153a381f72 100644
> --- a/drivers/virtio/virtio_ring.c
> +++ b/drivers/virtio/virtio_ring.c
> @@ -1810,6 +1810,35 @@ int virtqueue_add_inbuf_ctx(struct virtqueue *vq,
> }
> EXPORT_SYMBOL_GPL(virtqueue_add_inbuf_ctx);
>
> +#ifndef __KERNEL__
> +
> +/**
> + * virtqueue_reset_free_head - Reset to 0 the members of split ring.
> + * @vq: Virtqueue to reset.
> + *
> + * At this moment, is only meant for debug the ring index change, do not use
> + * in production.
> + */
> +void virtqueue_reset_free_head(struct virtqueue *_vq)
> +{
> + struct vring_virtqueue *...
2020 Apr 01
0
[PATCH v3 0/8] vhost: Reset batched descriptors on SET_VRING_BASE call
...ING_BASE
> event. Because of that, is possible to return an invalid descriptor to
> the guest.
>
> This series ammend this, resetting them every time backend changes, and
> creates a test to assert correct behavior. To do that, they need to
> expose a new function in virtio_ring, virtqueue_reset_free_head, only
> on test code.
>
> Another useful thing would be to check if mutex is properly get in
> vq private_data accessors. Not sure if mutex debug code allow that,
> similar to C++ unique lock::owns_lock. Not acquiring in the function
> because caller code holds the mutex in order...
2020 Apr 01
1
[PATCH v3 0/8] vhost: Reset batched descriptors on SET_VRING_BASE call
...s possible to return an invalid descriptor to
>>> the guest.
>>>
>>> This series ammend this, resetting them every time backend changes, and
>>> creates a test to assert correct behavior. To do that, they need to
>>> expose a new function in virtio_ring, virtqueue_reset_free_head, only
>>> on test code.
>>>
>>> Another useful thing would be to check if mutex is properly get in
>>> vq private_data accessors. Not sure if mutex debug code allow that,
>>> similar to C++ unique lock::owns_lock. Not acquiring in the function
>>&g...