[libvirt-users] Emulated TPM doesn't work on Debian Buster

Hi. I am very interested in the security properties a totally open TPM can give our users  - its use as a universal smartcard to protect all types of keys. When adding the virtual 1.2 or 2.0 TPM I get the vague error below. OS is Debian stable with standard packages. Error starting domain: Unable to find 'swtpm' binary in $PATH: No such file or directory Traceback (most recent call last):   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper     callback(asyncjob, *args, **kwargs)   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb     callback(*args, **kwargs)   File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 66, in newfn     ret = fn(self, *args, **kwargs)   File "/usr/share/virt-manager/virtManager/domain.py", line 1400, in startup     self._backend.create()   File "/usr/lib/python3/dist-packages/libvirt.py", line 1080, in create     if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirt.libvirtError: Unable to find 'swtpm' binary in $PATH: No such file or directory