qemu-system-ppc64 abort()s with pcie bridges

[Thomas Huth]

 Hi,

qemu-system-ppc64 currently abort()s when it is started with a pcie
bridge device:

$ qemu-system-ppc64 -M pseries-5.1 -device pcie-pci-bridge
Unexpected error in object_property_find() at qom/object.c:1240:
qemu-system-ppc64: -device pcie-pci-bridge: Property '.chassis_nr' not found
Aborted (core dumped)

or:

$ qemu-system-ppc64 -M pseries -device dec-21154-p2p-bridge
Unexpected error in object_property_find() at qom/object.c:1240:
qemu-system-ppc64: -device dec-21154-p2p-bridge: Property '.chassis_nr'
not found
Aborted (core dumped)

That's kind of ugly, and it shows up as error when running
scripts/device-crash-test. Is there an easy way to avoid the abort() and
fail more gracefully here?

 Thomas