Re: [Qemu-devel] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC

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On Thu, 2015-10-22 at 15:32 +0300, Michael S. Tsirkin wrote:
> On Wed, Oct 21, 2015 at 01:20:27PM -0600, Alex Williamson wrote:
> > 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:

> 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."

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