bhyve: passthrough SMART info from host nvme controller

[Jason Tubnor]

On Thu, 19 Mar 2020 at 14:09, Wanpeng Qian <wanpengqian at gmail.com> wrote:

> > Can't you do what something like pci_passthru.c does in passthru_init,
> > and open /dev/nvme0 in pci_nvme_init?
>
> Yes, you are correct. but that will make /dev/nvme0 keep open all the time.
> I just thinking when guest fire a logpage command, open the /dev/nvme0
> and get the SMART info. then close /dev/nvme0.


So are you implying that it is safe for a guest to send such a call at
anytime? For those that use bhyve for isolation, this sort of facility
would be problematic not to mention insecure.