From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Lan, Tianyu" <tianyu.lan@intel.com>
Subject: Re: [RFC Patch 05/12] IXGBE: Add new sysfs interface
	of "notify_vf"
Date: Sat, 24 Oct 2015 23:43:37 +0800
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To: Alexander Duyck <alexander.duyck@gmail.com>, bhelgaas@google.com,
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On 10/22/2015 4:52 AM, Alexander Duyck wrote:
> Also have you even considered the MSI-X configuration on the VF?  I
> haven't seen anything anywhere that would have migrated the VF's MSI-X
> configuration from BAR 3 on one system to the new system.

MSI-X migration is done by Hypervisor(Qemu).
Following link is my Qemu patch to do that.
http://marc.info/?l=kvm&m=144544706530484&w=2