lib/virtio/virtqueue.c

304     size_t vring_mem_size = vring_size(setup->vring_ndesc, setup->vring_align);
305     vring_mem_size = ROUND_UP(vring_mem_size, BASE_PAGE_SIZE);
308         vring_mem_size += setup->vring_ndesc * (1UL << setup->buffer_bits);
312         vring_mem_size += setup->vring_ndesc * (1UL << setup->header_bits);
315     if (vring_mem_size > id.bytes) {
318                         (uint64_t )vring_mem_size);
323     err = vspace_map_one_frame(&vring_addr, vring_mem_size, vring_cap, NULL, NULL);
479         size_t vring_mem_size = vring_size(vq->desc_num, vq->vring_align);
480         vring_mem_size = ROUND_UP(vring_mem_size, BASE_PAGE_SIZE);
482         return vq->vring_vaddr + vring_mem_size;