Re: [PATCH 0/4] Add Split indirect descriptors for SVQ

[Jason Wang <jasowang@redhat.com>]

On Thu, Dec 4, 2025 at 3:38 PM Wafer Xie <wafer@jaguarmicro.com> wrote:
>
> This patch series adds support for VIRTIO split indirect descriptors.
> The feature is VIRTIO_RING_F_INDIRECT_DESC.
>
> Eugenio hs submitted a patch: vhost: accept indirect descriptors in shadow virtqueue
> https://lists.nongnu.org/archive/html/qemu-devel/2025-12/msg00056.html
> Therefore, this patch must be applied first.

I may miss something but svq can read indirect descriptors even though
it doesn't use indirect descriptor, that's sufficient for making it
claims to support indirect descriptors. That's what Eugenio said in
that series.

This series could be an optimization on top?

Thanks

>
>
> Wafer Xie (4):
>   vhost: add data structure of virtio indirect descriptors in SVQ
>   vdpa: implement the interfaces alloc/free for indirect desc
>   vhost: supported the virtio indirect desc of available ring
>   vhost: supported the viriot indriect desc of used ring
>
>  hw/virtio/vhost-shadow-virtqueue.c | 224 +++++++++++++++++++++++++++--
>  hw/virtio/vhost-shadow-virtqueue.h |  57 +++++++-
>  hw/virtio/vhost-vdpa.c             | 130 ++++++++++++++++-
>  3 files changed, 395 insertions(+), 16 deletions(-)
>
> --
> 2.34.1
>