Re: [virtio-dev] Re: [PATCH 1/3] virtio: Basic implementation of virtio pstore driver

From: Paolo Bonzini
Date: Fri Nov 18 2016 - 04:47:02 EST

On 18/11/2016 05:07, Michael S. Tsirkin wrote:
> On Fri, Nov 18, 2016 at 12:32:06PM +0900, Namhyung Kim wrote:
>> Btw I prefer using the kvmtool for my kernel work since it's much more
>> simpler..
> Up to you but then you should extend that to support 1.0 spec.
> I strongly object to adding to the list of legacy interfaces
> we need to maintain.

I object to adding paravirtualization unless there is a good reason why
the usual mechanisms for physical machines cannot be used. The cost of
maintaining a spec, two device implementations (kvmtool+qemu) and a
driver is not small, plus it will not work on older kernels.