shulemmosko opened a new issue, #9875:
URL: https://github.com/apache/cloudstack/issues/9875
##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Bug Report
##### COMPONENT NAME
KVM Extraconfig
##### CLOUDSTACK VERSION
4.18.2.4
##### CONFIGURATION
extraconfig-1
<devices> <tpm model="tpm-crb"> <backend type="emulator" version="2.0"/>
</tpm> </devices>
##### OS / ENVIRONMENT
N/A
##### SUMMARY
I had a VM with a vTPM configured in the settings as follow
**extraconfig-1**
<devices> <tpm model="tpm-crb"> <backend type="emulator" version="2.0"/>
</tpm> </devices>
it was working fine untill i upgraded cloudstack to 4.18.2.4 after i
upgraded cloudstack i cant start the VM im getting the following error

and the extraconfig is graied out i cannot remove it or edit it.

##### STEPS TO REPRODUCE
##### EXPECTED RESULTS
the extraconfig device to work properly after upgrading cloudstack
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