Prior to v9.3.0-rc1~30 we used to set default bus for <input/> devices, during XML parsing. In the commit this code was moved to a post parse callback. But somehow the line that sets the bus in one specific case disappeared. Bring it back. Resolves: https://gitlab.com/libvirt/libvirt/-/issues/577 Fixes: c4bc4d3b82fbe22e03c986ca896090f481df5c10 Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/conf/domain_postparse.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/conf/domain_postparse.c b/src/conf/domain_postparse.c index e79913b73f..ed9411f5e6 100644 --- a/src/conf/domain_postparse.c +++ b/src/conf/domain_postparse.c @@ -657,6 +657,7 @@ virDomainInputDefPostParse(virDomainInputDef *input, if ((input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE || input->type == VIR_DOMAIN_INPUT_TYPE_KBD) && (ARCH_IS_X86(def->os.arch) || def->os.arch == VIR_ARCH_NONE)) { + input->bus = VIR_DOMAIN_INPUT_BUS_PS2; } else if (ARCH_IS_S390(def->os.arch) || input->type == VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH) { input->bus = VIR_DOMAIN_INPUT_BUS_VIRTIO;