On Thu, Sep 26, 2019 at 12:04:46PM +0800, Jason Wang wrote:
I'm not sure how stable above ops are.
It's the kernel internal API, so there's no strict requirement for this. We will export a version value for userspace for compatibility.
Given it's tied to virtio we probably want kernel+userspace feature bits?
Yes, then I think we could probably have a version field inside e.g device_ops structure. Then it could be fetched from both kernel and userspace driver.
Thanks
my point was feature bits not a version number.