> > - Suggestion by Paolo & Stefan(previously) to use virtio-blk makes sense > > if just > > want a flush vehicle to send guest commands to host and get reply > > after asynchronous > > execution. There was previous discussion [1] with Rik & Dan on this. > > > > [1] https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg08373.html > > ... in fact, the virtio-blk device _could_ actually accept regular I/O > too. That would make it easier to boot from pmem. Is there anything > similar in regular hardware? there is existing block device associated(hard bind) with the pmem range. Also, comment by Christoph [1], about removing block device with DAX support. Still I am not clear about this. Am I missing anything here? [1] https://marc.info/?l=kvm&m=150822740332536&w=2 Pankaj