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

Failed to define the guest VM due to the virtio-mem device having {{dynamicMemslots }}enabled.

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

# rpm -q libvirt qemu-kvm
libvirt-11.2.0-1.el10.s390x
qemu-kvm-10.0.0-0.rc3.el10.preview.s390x

How reproducible is this bug?:100%

Steps to reproduce

1. Prepare a guest config xml with below virtio-mem device:
   <memory model='virtio-mem' >
       <target dynamicMemslots='yes'>
         <size unit='KiB'>2097152</size>
         <block unit='KiB'>1024</block>
         <requested unit='KiB'>2097152</requested>
        </target>
     </memory>
2. Define the guest

# virsh define vm1.xml
error: Failed to define domain from vm1.xml
error: unsupported configuration: virtio-mem does not support dynamicMemslots

Expected results

guest vm could be defined successfully

Actual results

error prompts when defining the guest vm.