Maybe this is still due to the problem download.opensuse.org faced yesterday, when selecting to install KVM Pattern, following file and its dependencies could not be found.
typelib-1_0-Libosinfo-1_0-1.0.0-1.4.x86_64.rpm
Probably is related. Just wait another day or so
Today, 10 of september, the problem still persists.
Did a workaround.
1-Click install of qemu via
https://software.opensuse.org/download.html?project=Virtualization&package=qemu
but changing Ports:/port repository to Update/ports due to change of repository.
Could install qemu and Tools
Thank you
Download is working again now.