This series enables shadowed CVQ to intercept rx commands related to VIRTIO_NET_F_CTRL_RX_EXTRA feature through shadowed CVQ, update the virtio NIC device model so qemu send it in a migration, and the restore of that rx state in the destination.
To test this patch series, one should modify the `n->parent_obj.guest_features` value in vhost_vdpa_net_load_rx() using gdb, as the linux virtio-net driver does not currently support the VIRTIO_NET_F_CTRL_RX_EXTRA feature. Note that this patch should be based on [1], which has not been merged yet. I will submit the new viersion patch after it is merged. [1]. https://lists.nongnu.org/archive/html/qemu-devel/2023-06/msg06559.html Changelog ========= v2: - avoid sending CVQ command in default state suggested by Eugenio v1: https://lists.nongnu.org/archive/html/qemu-devel/2023-06/msg04956.html Hawkins Jiawei (2): vdpa: Restore packet receive filtering state relative with _F_CTRL_RX_EXTRA feature vdpa: Allow VIRTIO_NET_F_CTRL_RX_EXTRA in SVQ net/vhost-vdpa.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) -- 2.25.1
