What were you trying to do that didn't work?

Try to get CPU topology info in RHEL9 host and RHEL8 guest by the command of "cat /proc/cpuinfo

Please provide the package NVR for which bug is seen:

qemu version: qemu-kvm-8.2.0-2.el9.s390x

kernel version: kernel-5.14.0-404.el9.s390x

guest kernel version: kernel-4.18.0-537.el8.s390x

libvirt version: libvirt-9.10.0-1.el9.s390x

How reproducible:

100%

Steps to reproduce

1. boot up RHEL8 guest with ctop=on(default value) in RHEL9 host with CPU topology supported
2. check the CPU topology info by "cat /proc/cpuinfo"

Expected results

cpu number      : 7
physical id     : 1
core id         : 7
book id         : 0
drawer id       : 0
dedicated       : 0
address         : 7
siblings        : 4
cpu cores       : 4
version         : FF
identification  : 275FA8
machine         : 3931
cpu MHz dynamic : 5200
cpu MHz static  : 5200

Actual results

cpu number      : 7
cpu MHz dynamic : 5200
cpu MHz static  : 5200