The disable-legacy and disable-modern properties apply only to some virtio-pci devices. Make those properties optional.
This fixes the crash introduced by commit f6e501a28ef9 ("virtio: Provide version-specific variants of virtio PCI devices"): $ qemu-system-x86_64 -machine pc-i440fx-2.6 \ -device virtio-net-pci-non-transitional Unexpected error in object_property_find() at qom/object.c:1092: qemu-system-x86_64: -device virtio-net-pci-non-transitional: can't apply \ global virtio-pci.disable-modern=on: Property '.disable-modern' not found Aborted (core dumped) Reported-by: Thomas Huth <th...@redhat.com> Fixes: f6e501a28ef9 ("virtio: Provide version-specific variants of virtio PCI devices") Signed-off-by: Eduardo Habkost <ehabk...@redhat.com> --- hw/core/machine.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/core/machine.c b/hw/core/machine.c index 5530b71981..a19143aa44 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -91,8 +91,9 @@ const size_t hw_compat_2_7_len = G_N_ELEMENTS(hw_compat_2_7); GlobalProperty hw_compat_2_6[] = { { "virtio-mmio", "format_transport_address", "off" }, - { "virtio-pci", "disable-modern", "on" }, - { "virtio-pci", "disable-legacy", "off" }, + /* Optional because not all virtio-pci devices support legacy mode */ + { "virtio-pci", "disable-modern", "on", .optional = true }, + { "virtio-pci", "disable-legacy", "off", .optional = true }, }; const size_t hw_compat_2_6_len = G_N_ELEMENTS(hw_compat_2_6); -- 2.18.0.rc1.1.g3f1ff2140