Am Freitag, 29. August 2008 schrieb Hannes Reinecke: > So when using '-drive file=/dev/sgXX,if=virtio,format=host_device' you > can happily call any sg_XX command on the resulting vdX device. Quite > neat, methinks. And it's even backwards compatible, so each of these > patches should work without the other one applied. Does not work here. If the host does not support the pass-through, the device drivers waits for an response. I tried sdparm /dev/vda with a patched kernel and an unpatched userspace. I think you should use a feature bit to avoid problems. Christian _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization