Hello Christian, basically it is the same what people do here: https://askubuntu.com/questions/1365829/qemu-failed-to-passthrough-a-tpm-device
Except that you need to write "/dev/tpm0 rm," into the file, as the colon is missing and starting a VM will give you complaints on an AppArmor rule. In my opinion, the best solution would be either to let libvirt add an exception when starting a VM that needs a TPM passthrough or the exception will be made in an Apparmor file for libvirt users and its spawned processes. Regards, Thomas -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1913552 Title: using tpm reports "/dev/tpm0: Permission denied" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1913552/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
