NVMe driver within hypervisors

[Daniel Stodden]

On Mon, 2014-12-01 at 15:07 +0000, Keith Busch wrote:
> On Wed, 26 Nov 2014, Bhattacharya, Indranil wrote:
> > Hi,
> >
> > Is a NVMe driver available for the Xen hypervisor? I see that a Vmware ESXi driver has become available (http://www.nvmexpress.org/blog/1556/); but I don't see any similar announcement for Xen.
> 
> Correct me if I'm wrong, but doesn't Xen derive device driver support
> from its "dom-0"? Just use an nvme-capable Linux guest there and you've
> enabled Xen to support nvme, yeah?

Correct. Backends in dom0 eventually translate guest I/O to bios issued
to a kernel blockdev. Such as an NVMe one, typically implemented by a
normal Linux driver.

Daniel