Hi,
I did a very simple test : 1, modify qemu/hw/block/virtio-blk.c, let virtio-blk use 256 queue: *s->vq = virtio_add_queue(vdev, 128, virtio_blk_handle_output);* --> *s->vq = virtio_add_queue(vdev, 256 , virtio_blk_handle_output);*
** 2, compile qemu and run a VM which boots from virtio-blk disk.
The VM can NOT boot because seabios use macro MAX_QUEUE_NUM as 128. So, does virtio-pci support more queues? Looking forward your reply!