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

[procmem at riseup.net]

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