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CPU Host Passthrough is not working #12988
Description
problem
Hi Team,
I have set guest.cpu.mode=host-passthrough in kvm agent properties . when i'm creating vm on that kvm host it is not passing kvm host cpu ( Inten Xeon) on VM . i have check command lscpu on vm it is showing QEMU Virtual CPU version 2.5+.
Cloudstack Version 4.22
VM OS- Ubuntu 24 LTS
versions
The versions of ACS, hypervisors, storage, network etc..
The steps to reproduce the bug
...
What to do about it?
No response
Activity
[-]CPU Host Passthrough is working[/-][+]CPU Host Passthrough is not working[/+]rajujith commentedon Apr 9, 2026
@amitcsc1989 Can you restart the cloudstack-agent on the KVM and try deploying the VM again?
amitcsc1989 commentedon Apr 9, 2026
i have tried with restarting kvm agent service that is working fine but in case of those vm's which are already created . can these changes automatically added post restart of vm from UI.
rajujith commentedon Apr 10, 2026
I believe you need to stop and then start the VM.