The following is mostly a note to myself, I'm still first of all waiting
for the logs I asked above.
The config used in the example you linked is:
<tpm model='tpm-crb'>
<backend type='passthrough'>
<device path='/dev/tpm0'/>
</backend>
</tpm>
Per https://libvirt.org/formatdomain.html#tpm-device about tpm-crb
"another available choice is the tpm-crb, which should only be used when the
backend device is a TPM 2.0"
tpm-tis could be an alternative, but that also might be odd.
So far I mostly heard people use emulators [1][2]
in libvirt that is something like:
<tpm model="tpm-crb">
<backend type="emulator" version="2.0"/>
</tpm>
Unfortunately my TPM is unhappy with me, also I have none of the further steps
in place. So no testing from me atm (IIRC xnox had a setup like this once):
$ sudo /usr/sbin/tcsd -f
TCSD TDDL ioctl: (25) Inappropriate ioctl for device
TCSD TDDL Falling back to Read/Write device support.
TCSD TCS ERROR: TCS GetCapability failed with result = 0x1e
[1]: https://github.com/stefanberger/swtpm
[2]: https://launchpad.net/~stefanberger/+archive/ubuntu/swtpm-focal
--
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
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
