[v2] add failover feature for assigned network devices

[Qemu-devel] [PATCH 5/9] qapi: add unplug primary event

Jens Freimann posted 9 patches 6 years, 6 months ago

Diff against v1 v3 v4 v5 v6 v7
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Maintainers: Jason Wang <jasowang@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Alex Williamson <alex.williamson@redhat.com>, Markus Armbruster <armbru@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Juan Quintela <quintela@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Eric Blake <eblake@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>

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[Qemu-devel] [PATCH 5/9] qapi: add unplug primary event

Posted by Jens Freimann 6 years, 6 months ago

Add new qmp event to send the device id of a device that was
requested to be unplugged by the guest OS.
 
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
---
 qapi/migration.json | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/qapi/migration.json b/qapi/migration.json
index 9cfbaf8c6c..d567ac9fc3 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -1445,3 +1445,22 @@
 # Since: 3.0
 ##
 { 'command': 'migrate-pause', 'allow-oob': true }
+
+##
+# @UNPLUG_PRIMARY:
+#
+# Emitted from source side of a migration when migration state is
+# WAIT_UNPLUG. Device was unplugged by guest operating system.
+# Device resources in QEMU are kept on standby to be able to re-plug it in case
+# of migration failure.
+#
+# @device_id: QEMU device id of the unplugged device
+#
+# Since: 4.2
+#
+# Example:
+#   {"event": "UNPLUG_PRIMARY", "data": {"device_id": "hostdev0"} }
+#
+##
+{ 'event': 'UNPLUG_PRIMARY',
+  'data': { 'device_id': 'str' } }
-- 
2.21.0