Commit daa33c52 authored by Zhang Chen's avatar Zhang Chen Committed by Stefano Stabellini
Browse files

Add a new qmp command to do checkpoint, query xen replication status 



We can call this qmp command to do checkpoint outside of qemu.
Xen colo will need this function.

Signed-off-by: default avatarZhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: default avatarWen Congyang <wencongyang@gmail.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Signed-off-by: default avatarStefano Stabellini <sstabellini@kernel.org>
parent 2c9639ec

migration/colo.c

+23 −0
Original line number Diff line number Diff line
@@ -173,6 +173,29 @@ void qmp_xen_set_replication(bool enable, bool primary, 
    }

}



ReplicationStatus *qmp_query_xen_replication_status(Error **errp)

{

    Error *err = NULL;

    ReplicationStatus *s = g_new0(ReplicationStatus, 1);



    replication_get_error_all(&err);

    if (err) {

        s->error = true;

        s->has_desc = true;

        s->desc = g_strdup(error_get_pretty(err));

    } else {

        s->error = false;

    }



    error_free(err);

    return s;

}



void qmp_xen_colo_do_checkpoint(Error **errp)

{

    replication_do_checkpoint_all(errp);

}



static void colo_send_message(QEMUFile *f, COLOMessage msg,

                              Error **errp)

{

qapi-schema.json

+48 −0
Original line number Diff line number Diff line
@@ -6014,6 +6014,54 @@ 
{ 'command': 'xen-set-replication',

  'data': { 'enable': 'bool', 'primary': 'bool', '*failover' : 'bool' } }



##

# @ReplicationStatus:

#

# The result format for 'query-xen-replication-status'.

#

# @error: true if an error happened, false if replication is normal.

#

# @desc: #optional the human readable error description string, when

#        @error is 'true'.

#

# Since: 2.9

##

{ 'struct': 'ReplicationStatus',

  'data': { 'error': 'bool', '*desc': 'str' } }



##

# @query-xen-replication-status:

#

# Query replication status while the vm is running.

#

# Returns: A @ReplicationResult object showing the status.

#

# Example:

#

# -> { "execute": "query-xen-replication-status" }

# <- { "return": { "error": false } }

#

# Since: 2.9

##

{ 'command': 'query-xen-replication-status',

  'returns': 'ReplicationStatus' }



##

# @xen-colo-do-checkpoint:

#

# Xen uses this command to notify replication to trigger a checkpoint.

#

# Returns: nothing.

#

# Example:

#

# -> { "execute": "xen-colo-do-checkpoint" }

# <- { "return": {} }

#

# Since: 2.9

##

{ 'command': 'xen-colo-do-checkpoint' }



##

# @GICCapability:

#