(QEMU) query-named-block-nodes
{
    "execute": "query-named-block-nodes", 
    "arguments": {}
}
{
    "return": [
        {
            "bps_rd": 0, 
            "ro": false, 
            "backing_file_depth": 3, 
            "encrypted": false, 
            "image": {
                "cluster-size": 65536, 
                "backing-image": {
                    "cluster-size": 65536, 
                    "backing-image": {
                        "cluster-size": 65536, 
                        "backing-image": {
                            "cluster-size": 65536, 
                            "format": "qcow2", 
                            "filename": "./disk1.qcow2", 
                            "virtual-size": 41126400, 
                            "dirty-flag": false, 
                            "format-specific": {
                                "data": {
                                    "compat": "1.1", 
                                    "refcount-bits": 16, 
                                    "corrupt": false, 
                                    "lazy-refcounts": false
                                }, 
                                "type": "qcow2"
                            }, 
                            "actual-size": 19861504
                        }, 
                        "format": "qcow2", 
                        "full-backing-filename": "./disk1.qcow2", 
                        "backing-filename-format": "qcow2", 
                        "filename": "b.qcow2", 
                        "dirty-flag": false, 
                        "virtual-size": 41126400, 
                        "backing-filename": "./disk1.qcow2", 
                        "format-specific": {
                            "data": {
                                "compat": "1.1", 
                                "refcount-bits": 16, 
                                "corrupt": false, 
                                "lazy-refcounts": false
                            }, 
                            "type": "qcow2"
                        }, 
                        "actual-size": 593920
                    }, 
                    "format": "qcow2", 
                    "full-backing-filename": "b.qcow2", 
                    "backing-filename-format": "qcow2", 
                    "filename": "c.qcow2", 
                    "dirty-flag": false, 
                    "virtual-size": 41126400, 
                    "backing-filename": "b.qcow2", 
                    "format-specific": {
                        "data": {
                            "compat": "1.1", 
                            "refcount-bits": 16, 
                            "corrupt": false, 
                            "lazy-refcounts": false
                        }, 
                        "type": "qcow2"
                    }, 
                    "actual-size": 200704
                }, 
                "format": "qcow2", 
                "full-backing-filename": "c.qcow2", 
                "backing-filename-format": "qcow2", 
                "filename": "d.qcow2", 
                "dirty-flag": false, 
                "virtual-size": 41126400, 
                "backing-filename": "c.qcow2", 
                "format-specific": {
                    "data": {
                        "compat": "1.1", 
                        "refcount-bits": 16, 
                        "corrupt": false, 
                        "lazy-refcounts": false
                    }, 
                    "type": "qcow2"
                }, 
                "actual-size": 1118208
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "qcow2", 
            "node-name": "#block2276", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "d.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "backing_file": "c.qcow2", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": false, 
            "backing_file_depth": 0, 
            "encrypted": false, 
            "image": {
                "dirty-flag": false, 
                "format": "file", 
                "virtual-size": 1179648, 
                "actual-size": 1118208, 
                "filename": "d.qcow2"
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "file", 
            "node-name": "#block2119", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "d.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": true, 
            "backing_file_depth": 2, 
            "encrypted": false, 
            "image": {
                "cluster-size": 65536, 
                "backing-image": {
                    "cluster-size": 65536, 
                    "backing-image": {
                        "cluster-size": 65536, 
                        "format": "qcow2", 
                        "filename": "./disk1.qcow2", 
                        "virtual-size": 41126400, 
                        "dirty-flag": false, 
                        "format-specific": {
                            "data": {
                                "compat": "1.1", 
                                "refcount-bits": 16, 
                                "corrupt": false, 
                                "lazy-refcounts": false
                            }, 
                            "type": "qcow2"
                        }, 
                        "actual-size": 19861504
                    }, 
                    "format": "qcow2", 
                    "full-backing-filename": "./disk1.qcow2", 
                    "backing-filename-format": "qcow2", 
                    "filename": "b.qcow2", 
                    "dirty-flag": false, 
                    "virtual-size": 41126400, 
                    "backing-filename": "./disk1.qcow2", 
                    "format-specific": {
                        "data": {
                            "compat": "1.1", 
                            "refcount-bits": 16, 
                            "corrupt": false, 
                            "lazy-refcounts": false
                        }, 
                        "type": "qcow2"
                    }, 
                    "actual-size": 593920
                }, 
                "format": "qcow2", 
                "full-backing-filename": "b.qcow2", 
                "backing-filename-format": "qcow2", 
                "filename": "c.qcow2", 
                "dirty-flag": false, 
                "virtual-size": 41126400, 
                "backing-filename": "b.qcow2", 
                "format-specific": {
                    "data": {
                        "compat": "1.1", 
                        "refcount-bits": 16, 
                        "corrupt": false, 
                        "lazy-refcounts": false
                    }, 
                    "type": "qcow2"
                }, 
                "actual-size": 200704
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "qcow2", 
            "node-name": "#block1544", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "c.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "backing_file": "b.qcow2", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": true, 
            "backing_file_depth": 0, 
            "encrypted": false, 
            "image": {
                "dirty-flag": false, 
                "format": "file", 
                "virtual-size": 197120, 
                "actual-size": 200704, 
                "filename": "c.qcow2"
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "file", 
            "node-name": "#block1479", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "c.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": true, 
            "backing_file_depth": 1, 
            "encrypted": false, 
            "image": {
                "cluster-size": 65536, 
                "backing-image": {
                    "cluster-size": 65536, 
                    "format": "qcow2", 
                    "filename": "./disk1.qcow2", 
                    "virtual-size": 41126400, 
                    "dirty-flag": false, 
                    "format-specific": {
                        "data": {
                            "compat": "1.1", 
                            "refcount-bits": 16, 
                            "corrupt": false, 
                            "lazy-refcounts": false
                        }, 
                        "type": "qcow2"
                    }, 
                    "actual-size": 19861504
                }, 
                "format": "qcow2", 
                "full-backing-filename": "./disk1.qcow2", 
                "backing-filename-format": "qcow2", 
                "filename": "b.qcow2", 
                "dirty-flag": false, 
                "virtual-size": 41126400, 
                "backing-filename": "./disk1.qcow2", 
                "format-specific": {
                    "data": {
                        "compat": "1.1", 
                        "refcount-bits": 16, 
                        "corrupt": false, 
                        "lazy-refcounts": false
                    }, 
                    "type": "qcow2"
                }, 
                "actual-size": 593920
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "qcow2", 
            "node-name": "#block826", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "b.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "backing_file": "./disk1.qcow2", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": true, 
            "backing_file_depth": 0, 
            "encrypted": false, 
            "image": {
                "dirty-flag": false, 
                "format": "file", 
                "virtual-size": 655360, 
                "actual-size": 593920, 
                "filename": "b.qcow2"
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "file", 
            "node-name": "#block708", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "b.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": true, 
            "backing_file_depth": 0, 
            "encrypted": false, 
            "image": {
                "cluster-size": 65536, 
                "format": "qcow2", 
                "filename": "./disk1.qcow2", 
                "virtual-size": 41126400, 
                "dirty-flag": false, 
                "format-specific": {
                    "data": {
                        "compat": "1.1", 
                        "refcount-bits": 16, 
                        "corrupt": false, 
                        "lazy-refcounts": false
                    }, 
                    "type": "qcow2"
                }, 
                "actual-size": 19861504
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "qcow2", 
            "node-name": "#block138", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "./disk1.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "iops_wr": 0
        }, 
        {
            "bps_rd": 0, 
            "ro": true, 
            "backing_file_depth": 0, 
            "encrypted": false, 
            "image": {
                "dirty-flag": false, 
                "format": "file", 
                "virtual-size": 19922944, 
                "actual-size": 19861504, 
                "filename": "./disk1.qcow2"
            }, 
            "cache": {
                "no-flush": false, 
                "writeback": true, 
                "direct": false
            }, 
            "bps_wr": 0, 
            "drv": "file", 
            "node-name": "#block066", 
            "bps": 0, 
            "iops": 0, 
            "write_threshold": 0, 
            "file": "./disk1.qcow2", 
            "iops_rd": 0, 
            "encryption_key_missing": false, 
            "detect_zeroes": "off", 
            "iops_wr": 0
        }
    ]
}
(QEMU)
=======================================================================
(QEMU) query-version
{
    "execute": "query-version", 
    "arguments": {}
}
{
    "return": {
        "qemu": {
            "micro": 50, 
            "major": 2, 
            "minor": 9
        }, 
        "package": " (v2.9.0-304-gca7305b)"
    }
}
(QEMU) 
=======================================================================