<div dir="ltr">What about KVM. Can't we virtualized IBM Software TPM in it too? </div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Dec 9, 2014 at 2:49 PM, Daniel P. Berrange <span dir="ltr"><<a href="mailto:berrange@redhat.com" target="_blank">berrange@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Tue, Dec 09, 2014 at 09:17:57AM +0500, Muhammad Faraz Hyder wrote:<br>
> Is there anyone who has virtualized the TPM using KVM/QEMU Hypervisor.<br>
><br>
> I am trying to use IBM software TPM and trying to virtualize it to the VMs<br>
> , but unable to do so.<br>
<br>
</div></div>QEMU has TPM device emulation, but the backend for the emulation must be a<br>
real TPM in the host. As such only a single guest can have a virtual TPM<br>
on each host. This basically it essentially useless as a feature for the<br>
cloud. There was work to allow the virtual TPM to be backed by a custom<br>
data store, so that all guests on a host could have this functionality,<br>
but it was never merged upstream in QEMU<br>
<br>
Regards,<br>
Daniel<br>
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