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

On AMD Milan host, forward live migration from rhel10.0.z to rhel10.1.z failed for  error: operation failed: guest CPU doesn't match specification: missing features: spec-ctrl

Please provide the package NVR for which the bug is seen:

Source:
cpu: AMD EPYC 7313 16-Core Processor

# rpm -q libvirt qemu-kvm
libvirt-10.10.0-8.10.el10_0.x86_64
qemu-kvm-9.1.0-15.el10_0.8.x86_64

Target:
cpu: AMD EPYC 7313 16-Core Processor

# rpm -q libvirt qemu-kvm
libvirt-11.5.0-4.8.el10_1.x86_64
qemu-kvm-10.0.0-14.el10_1.5.x86_64

How reproducible is this bug?:100%

Steps to reproduce

1. Provide the live migration environment on source and target host.

2. Start a cpu host model guest on source host with below cpu xml:
<cpu mode='host-model' check='partial'>

3. Do live migrate to the target

# virsh migrate vm1 qemu+ssh://target/system --verbose --live --undefinesource --persistent
root@target's password: 
error: operation failed: guest CPU doesn't match specification: missing features: spec-ctrl

Expected results

Live migration could be successfully.

Actual results

Live migration failed.