Handle VIRTIO_BLK_T_GET_ID request, always answering the "vdpa_blk_sim" string. Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx> Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx> --- v2: - made 'vdpasim_blk_id' static [Jason] --- drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c index a31964e3e5a4..643ae3bc62c0 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c @@ -38,6 +38,7 @@ #define VDPASIM_BLK_VQ_NUM 1 static struct vdpasim *vdpasim_blk_dev; +static char vdpasim_blk_id[VIRTIO_BLK_ID_BYTES] = "vdpa_blk_sim"; static bool vdpasim_blk_check_range(u64 start_sector, size_t range_size) { @@ -153,6 +154,20 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim, } break; + case VIRTIO_BLK_T_GET_ID: + bytes = vringh_iov_push_iotlb(&vq->vring, &vq->in_iov, + vdpasim_blk_id, + VIRTIO_BLK_ID_BYTES); + if (bytes < 0) { + dev_err(&vdpasim->vdpa.dev, + "vringh_iov_push_iotlb() error: %zd\n", bytes); + status = VIRTIO_BLK_S_IOERR; + break; + } + + pushed += bytes; + break; + default: dev_warn(&vdpasim->vdpa.dev, "Unsupported request type %d\n", type); -- 2.30.2