On Fri, Oct 20, 2017 at 9:06 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Fri, Oct 20, 2017 at 08:05:09AM -0700, Dan Williams wrote: >> Right, that's the same recommendation I gave. >> >> https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg08404.html >> >> ...so maybe I'm misunderstanding your concern? It sounds like we're on >> the same page. > > Yes, the above is exactly what I think we should do it. And in many > ways virtio seems overkill if we could just have a hypercall or doorbell > page as the queueing infrastructure in virtio shouldn't really be > needed. Ah ok, yes, get rid of the virtio-pmem driver and just make nvdimm_flush() do a hypercall based on region-type flag.
