search for: vhost_vq_index

...+649,27 @@ static void vhost_log_stop(MemoryListener *listener, /* FIXME: implement */ } +static int vhost_virtqueue_set_vring_endian_legacy(struct vhost_dev *dev, + bool is_big_endian, + int vhost_vq_index) +{ + struct vhost_vring_state s = { + .index = vhost_vq_index, + .num = is_big_endian + }; + + if (!dev->vhost_ops->vhost_call(dev, VHOST_SET_VRING_ENDIAN, &s)) { + return 0; + } + + if (errno == ENOTTY) { + error_report("vhost does not sup...

Hi, This series allows QEMU to use vhost with legacy virtio devices when host and target don't have the same endianness. Only network devices are covered for the moment. I had already posted a series some monthes ago but it never got reviewed. Moreover, the underlying kernel support was entirely re-written and is still waiting to be applied by Michael. I hence post as RFC. The corresponding

Hi, This series allows QEMU to use vhost with legacy virtio devices when host and target don't have the same endianness. Only network devices are covered for the moment. I had already posted a series some monthes ago but it never got reviewed. Moreover, the underlying kernel support was entirely re-written and is still waiting to be applied by Michael. I hence post as RFC. The corresponding

...hink they're mostly fine already). > + virtio_legacy_is_cross_endian(vdev)) { > + r = vhost_virtqueue_set_vring_endian_legacy(dev, > + virtio_is_big_endian(vdev), > + vhost_vq_index); > + if (r) { > + return -errno; > + } > + } > + > s = l = virtio_queue_get_desc_size(vdev, idx); > a = virtio_queue_get_desc_addr(vdev, idx); > vq->desc = cpu_physical_memory_map(a, &l, 0);

...hink they're mostly fine already). > + virtio_legacy_is_cross_endian(vdev)) { > + r = vhost_virtqueue_set_vring_endian_legacy(dev, > + virtio_is_big_endian(vdev), > + vhost_vq_index); > + if (r) { > + return -errno; > + } > + } > + > s = l = virtio_queue_get_desc_size(vdev, idx); > a = virtio_queue_get_desc_addr(vdev, idx); > vq->desc = cpu_physical_memory_map(a, &l, 0);

...nt if not there. > > + virtio_legacy_is_cross_endian(vdev)) { > > + r = vhost_virtqueue_set_vring_endian_legacy(dev, > > + virtio_is_big_endian(vdev), > > + vhost_vq_index); > > + if (r) { > > + return -errno; > > + } > > + } > > + > > s = l = virtio_queue_get_desc_size(vdev, idx); > > a = virtio_queue_get_desc_addr(vdev, idx); > > vq->desc = cpu_physical_memory_map(a, &...

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to