Re: [Qemu-devel] Is is possible to virtualise or share the TPM?

[Corey Bryant]

On 08/21/2012 06:31 AM, Jordi Cucurull Juan wrote:
> Dear all,
>
> After applying the TPM patches to QEMU, I was wondering if it is
> possible to simultaneously use the TPM in more than one virtual machine,
> i.e. virtualisation of the TPM.
>
> According to the paper "Stefan Berger, Ramón Cáceres, Kenneth A.
> Goldman, Ronald Perez, Reiner Sailer, Leendert van Doorn. vTPM:
> Virtualizing the Trusted Platform Module" this seems to be possible in
> Xen. Is not possible in QEMU?
>
> Thanks!
> Jordi.

I don't think the pass-through driver supports use by multiple VMs. 
Stefan Berger should be able to answer better so I'm adding him to the 
thread.

--
Regards,
Corey