linux-kernel - Re: [Qemu-devel] [RFC Patch 05/12] IXGBE: Add new sysfs interface of "notify

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Message-ID: <20151022155111-mutt-send-email-mst@redhat.com>
Date:	Thu, 22 Oct 2015 15:51:51 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Alexander Duyck <alexander.duyck@...il.com>
Cc:	Lan Tianyu <tianyu.lan@...el.com>, bhelgaas@...gle.com,
	carolyn.wyborny@...el.com, donald.c.skidmore@...el.com,
	eddie.dong@...el.com, nrupal.jani@...el.com,
	yang.z.zhang@...el.com, agraf@...e.de, kvm@...r.kernel.org,
	pbonzini@...hat.com, qemu-devel@...gnu.org,
	emil.s.tantilov@...el.com, intel-wired-lan@...ts.osuosl.org,
	jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com,
	john.ronciak@...el.com, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, matthew.vick@...el.com,
	mitch.a.williams@...el.com, netdev@...r.kernel.org,
	shannon.nelson@...el.com
Subject: Re: [Qemu-devel] [RFC Patch 05/12] IXGBE: Add new sysfs interface of
 "notify_vf"

On Wed, Oct 21, 2015 at 01:52:48PM -0700, 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.

Hypervisors do this for virtual devices so they can do this
for physical devices too.

-- 
MST
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