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-rw-r--r--hw/virtio-blk.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 5e81f53..5b416c3 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -153,6 +153,12 @@ static void virtio_blk_handle_scsi(VirtIOBlockReq *req)
int status;
int i;
+ if ((req->dev->vdev.guest_features & (1 << VIRTIO_BLK_F_SCSI)) == 0) {
+ virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
+ g_free(req);
+ return;
+ }
+
/*
* We require at least one output segment each for the virtio_blk_outhdr
* and the SCSI command block.