Commit b6a4805b authored by Kevin Wolf's avatar Kevin Wolf
Browse files

virtio-blk: Fix migration of queued requests 



in_sg[].iovec and out_sg[].ioved are pointer to (source) host memory and
therefore invalid after migration. When loading the device state we must
create a new mapping on the destination host.

Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 42fb2e07

hw/virtio-blk.c

+5 −0
Original line number Diff line number Diff line
@@ -481,6 +481,11 @@ static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id) 
        qemu_get_buffer(f, (unsigned char*)&req->elem, sizeof(req->elem));

        req->next = s->rq;

        s->rq = req;



        virtqueue_map_sg(req->elem.in_sg, req->elem.in_addr,

            req->elem.in_num, 1);

        virtqueue_map_sg(req->elem.out_sg, req->elem.out_addr,

            req->elem.out_num, 0);

    }



    return 0;