1. Before commit 94649d4 "spapr: Don't use QOM [*] syntax for DR connectors", the indexes were small integers:
(qemu) info qom-tree /machine (pseries-2.4-machine) /unattached (container) [...] /device[5] (spapr-pci-host-bridge) /p...@800000020000000.mmio[0] (qemu:memory-region) /p...@800000020000000.mmio-alias[0] (qemu:memory-region) /p...@800000020000000.io[0] (qemu:memory-region) /p...@800000020000000.io-alias[0] (qemu:memory-region) /pci.0 (PCI) /pci@800000020000000.iommu-root[0] (qemu:memory-region) /dr-connector[0] (spapr-dr-connector) /dr-connector[1] (spapr-dr-connector) /dr-connector[2] (spapr-dr-connector) [...] Since then, they're big ones: /dr-connector[1073741824] (spapr-dr-connector) /dr-connector[1073741825] (spapr-dr-connector) /dr-connector[1073741826] (spapr-dr-connector) The commit message doesn't quite spell out this change, and I'm therefore double-checkint it's intentional. Is it? 2. Before commit 6c2f9a1 "qapi: Make output visitor return qnull() instead of NULL", qom-get returned {}: Since then, it returns null: QMP> { "execute": "qom-get", "arguments": { "path": "/machine/unattached/device[5]/dr-connector[1073741950]", "property": "fdt" } } {"return": null} Does anyone care?