Open Stack

What about KVM. Can't we virtualized IBM Software TPM in it too?

On Tue, Dec 9, 2014 at 2:49 PM, Daniel P. Berrange <berrange at redhat.com>
wrote:

> On Tue, Dec 09, 2014 at 09:17:57AM +0500, Muhammad Faraz Hyder wrote:
> > Is there anyone who has virtualized the TPM using KVM/QEMU Hypervisor.
> >
> > I am trying to use IBM software TPM and trying to virtualize it to the
> VMs
> > , but unable to do so.
>
> QEMU has TPM device emulation, but the backend for the emulation must be a
> real TPM in the host. As such only a single guest can have a virtual TPM
> on each host. This basically it essentially useless as a feature for the
> cloud. There was work to allow the virtual TPM to be backed by a custom
> data store, so that all guests on a host could have this functionality,
> but it was never merged upstream in QEMU
>
> Regards,
> Daniel
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