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Re: [PATCH 02/11] pci: add option for net failover
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From: |
Alex Williamson |
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Subject: |
Re: [PATCH 02/11] pci: add option for net failover |
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Date: |
Mon, 21 Oct 2019 13:01:22 -0600 |
On Mon, 21 Oct 2019 20:45:46 +0200
Jens Freimann <address@hidden> wrote:
> On Mon, Oct 21, 2019 at 08:58:23AM -0600, Alex Williamson wrote:
> >On Fri, 18 Oct 2019 22:20:31 +0200
> >Jens Freimann <address@hidden> wrote:
> >
> >> This patch adds a net_failover_pair_id property to PCIDev which is
> >> used to link the primary device in a failover pair (the PCI dev) to
> >> a standby (a virtio-net-pci) device.
> >>
> >> It only supports ethernet devices. Also currently it only supports
> >> PCIe devices. QEMU will exit with an error message otherwise.
> >
> >Doesn't the PCIe device also need to be hotpluggable? We can have PCIe
> >devices attached to the root bus where we don't currently support
> >hotplug. Thanks,
>
> How do I recognize such a device? hotpluggable in DeviceClass?
I wouldn't expect it to be a device property, it's more of a function
of whether the bus that it's attached to supports hotplug, so probably
something related to the bus controller. Thanks,
Alex
[PATCH 03/11] pci: mark devices partially unplugged, Jens Freimann, 2019/10/18
[PATCH 04/11] pci: mark device having guest unplug request pending, Jens Freimann, 2019/10/18
[PATCH 05/11] qapi: add unplug primary event, Jens Freimann, 2019/10/18
[PATCH 06/11] qapi: add failover negotiated event, Jens Freimann, 2019/10/18
[PATCH 07/11] migration: allow unplug during migration for failover devices, Jens Freimann, 2019/10/18
[PATCH 08/11] migration: add new migration state wait-unplug, Jens Freimann, 2019/10/18