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Date: Thu, 22 Oct 2015 07:01:01 -0600 From: Alex Williamson <alex.williamson@...hat.com> To: "Michael S. Tsirkin" <mst@...hat.com> Cc: Or Gerlitz <gerlitz.or@...il.com>, emil.s.tantilov@...el.com, kvm@...r.kernel.org, linux-pci@...r.kernel.org, qemu-devel@...gnu.org, Jesse Brandeburg <jesse.brandeburg@...el.com>, carolyn.wyborny@...el.com, "Skidmore, Donald C" <donald.c.skidmore@...el.com>, agraf@...e.de, matthew.vick@...el.com, intel-wired-lan@...ts.osuosl.org, Jeff Kirsher <jeffrey.t.kirsher@...el.com>, yang.z.zhang@...el.com, Mitch Williams <mitch.a.williams@...el.com>, nrupal.jani@...el.com, bhelgaas@...gle.com, Lan Tianyu <tianyu.lan@...el.com>, Linux Netdev List <netdev@...r.kernel.org>, Shannon Nelson <shannon.nelson@...el.com>, eddie.dong@...el.com, Linux Kernel <linux-kernel@...r.kernel.org>, john.ronciak@...el.com, Paolo Bonzini <pbonzini@...hat.com> Subject: Re: [Qemu-devel] [RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC 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." -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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