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Re: [PATCH v5 06/11] qapi: add failover negotiated event
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH v5 06/11] qapi: add failover negotiated event |
Date: |
Thu, 24 Oct 2019 18:32:45 +0100 |
User-agent: |
Mutt/1.12.1 (2019-06-15) |
* Jens Freimann (address@hidden) wrote:
> This event is sent to let libvirt know that VIRTIO_NET_F_STANDBY
> feature was not negotiated during virtio feature negotiation. If this
> event is received it means any primary devices hotplugged before
> this were were never really added to QEMU devices.
>
> Signed-off-by: Jens Freimann <address@hidden>
Can I just understand a bit more about what the meaning of this is.
Say my VM boots:
a) BIOS
b) Boot loader
c) Linux
d) Reboots
(possibly a',b', different c')
When would I get that event?
When can libvirt know it can use it?
Dave
> ---
> qapi/net.json | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/qapi/net.json b/qapi/net.json
> index 728990f4fb..8c5f3f1fb2 100644
> --- a/qapi/net.json
> +++ b/qapi/net.json
> @@ -737,3 +737,19 @@
> ##
> { 'command': 'announce-self', 'boxed': true,
> 'data' : 'AnnounceParameters'}
> +
> +##
> +# @FAILOVER_NEGOTIATED:
> +#
> +# Emitted when VIRTIO_NET_F_STANDBY was negotiated during feature negotiation
> +#
> +# Since: 4.2
> +#
> +# Example:
> +#
> +# <- { "event": "FAILOVER_NEGOTIATED",
> +# "data": {} }
> +#
> +##
> +{ 'event': 'FAILOVER_NEGOTIATED',
> + 'data': {} }
> --
> 2.21.0
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- Re: [PATCH v5 02/11] pci: add option for net failover, (continued)
Re: [PATCH v5 02/11] pci: add option for net failover, Dr. David Alan Gilbert, 2019/10/24
[PATCH v5 03/11] pci: mark devices partially unplugged, Jens Freimann, 2019/10/23
[PATCH v5 04/11] pci: mark device having guest unplug request pending, Jens Freimann, 2019/10/23
[PATCH v5 05/11] qapi: add unplug primary event, Jens Freimann, 2019/10/23
[PATCH v5 06/11] qapi: add failover negotiated event, Jens Freimann, 2019/10/23
[PATCH v5 07/11] migration: allow unplug during migration for failover devices, Jens Freimann, 2019/10/23
[PATCH v5 08/11] migration: add new migration state wait-unplug, Jens Freimann, 2019/10/23
[PATCH v5 09/11] libqos: tolerate wait-unplug migration state, Jens Freimann, 2019/10/23
[PATCH v5 10/11] net/virtio: add failover support, Jens Freimann, 2019/10/23
[PATCH v5 11/11] vfio: unplug failover primary device before migration, Jens Freimann, 2019/10/23