Since we switched to QMP probing, the object types are spelled out explicitly, i.e. virtio-net-pci. This has effectively disabled the capability detection of s390 virtio devices. The trivial fix is to add the s390 virtio types explicitly to qemuCapsObjectProps. Signed-off-by: Viktor Mihajlovski <mihajlov(a)linux.vnet.ibm.com&gt; --- src/qemu/qemu_capabilities.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index a6ac169..a705a53 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1400,6 +1400,10 @@ static struct qemuCapsObjectTypeProps qemuCapsObjectProps[] = { ARRAY_CARDINALITY(qemuCapsObjectPropsVirtioBlk) }, { "virtio-net-pci", qemuCapsObjectPropsVirtioNet, ARRAY_CARDINALITY(qemuCapsObjectPropsVirtioNet) }, + { "virtio-blk-s390", qemuCapsObjectPropsVirtioBlk, + ARRAY_CARDINALITY(qemuCapsObjectPropsVirtioBlk) }, + { "virtio-net-s390", qemuCapsObjectPropsVirtioNet, + ARRAY_CARDINALITY(qemuCapsObjectPropsVirtioNet) }, { "pci-assign", qemuCapsObjectPropsPciAssign, ARRAY_CARDINALITY(qemuCapsObjectPropsPciAssign) }, { "kvm-pci-assign", qemuCapsObjectPropsPciAssign,