On Thu, Oct 22, 2015 at 07:01:01AM -0600, Alex Williamson wrote:

On Thu, 2015-10-22 at 15:32 +0300, Michael S. Tsirkin wrote:

quoted

On Wed, Oct 21, 2015 at 01:20:27PM -0600, Alex Williamson wrote:

quoted

The trouble here is that the VF needs to be unplugged prior to the start
of migration because we can't do effective dirty page tracking while the
device is connected and doing DMA.

That's exactly what patch 12/12 is trying to accomplish.

I do see some problems with it, but I also suggested some solutions.

I was replying to:

quoted

So... what would you expect service down wise for the following
solution which is zero touch and I think should work for any VF
driver:

And then later note:

"Here it's done via an enlightened guest driver."

Oh, I misunderstood your intent. Sorry about that.

So we are actually in agreement between us then. That's nice.

-- 
MST