VirtIOSCSIReq *virtio_scsi_init_req(VirtIOSCSI *s, VirtQueue *vq) { VirtIOSCSIReq *req; VirtIOSCSICommon *vs = (VirtIOSCSICommon *)s; const size_t zero_skip = offsetof(VirtIOSCSIReq, vring); req = g_malloc(sizeof(*req) + vs->cdb_size); req->vq = vq; req->dev = s; qemu_sglist_init(&req->qsgl, DEVICE(s), 8, &address_space_memory); qemu_iovec_init(&req->resp_iov, 1); memset((uint8_t *)req + zero_skip, 0, sizeof(*req) - zero_skip); return req; }