[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RESEND] tools/libxl: add support for emulated NVMe drives
On Thu, Jan 19, 2017 at 08:58:12AM +0000, Paul Durrant wrote: > > -----Original Message----- > [snip] > > > > For safety I guess I could explore the possibility of having libxl not > > > > create a PV backend for this vdev type. > > > > > > ... this is the best option for now. > > > > > > > And I realise if we are not going to have code in libxl for nvme pv > > disk, we can just use device_model_args to add the emulated device, > > which means this patch is not needed anymore. > > > > device_model_args is not exactly a user-friendly way to use emulated nvme > disks, which was the main motivation for this patch. > > > Can you clarify the use case you anticipated for emulated NVMe disks? > > > > My personal use is going to be to test performance, and maybe try to improve. > The advantage with NVMe over PV is that the perf. is already not bad, and > there's no need to install PV storage drivers since recent versions of > Windows (and other OS) already have NVME drivers. The main problem with them > is that seabios cannot (yet) boot from NVMe. I'm hoping OVMF might, but I > need to experiment further. > Given the push-back I guess I'll live with the device_model_args hassle for > the moment and re-send once I've got an unplug patch into QEMU. > Thanks for clarification. It's best to resubmit until QEMU patch is ready. Wei. > Paul _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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