Re: [Qemu-devel] [Xen-devel] [PATCH] SeaBios/vTPM: Enable Xen stubdom vTPM for HVM virtual machine

[Stefan Berger]

On 03/19/2015 08:56 AM, Ian Campbell wrote:
> On Tue, 2015-03-10 at 08:16 -0400, Quan Xu wrote:
> > @@ -151,6 +152,8 @@ device_hardware_setup(void)
> >       esp_scsi_setup();
> >       megasas_setup();
> >       pvscsi_setup();
> > +    if (runningOnXen())
> > +        vtpm4hvm_setup();
> Is there anything which is actually Xen specific about the driver in
> tpm.[ch]? Would it be better to just probe for it, perhaps gates by a
> Kconfig option which enables TPM support.

I also think the probing should be done. That code can also be recycled 
from what I posted earlier. It's gated by a Kconfig option, so it 
doesn't fill up the 128k ROM.

    Stefan

> And following that train of thought I think you could reasonable drop
> "4hvm" from the name. And possibly even the leading "v", since I suppose
> seabios shouldn't really care if the tpm is emulated or real so long as
> it looks like a real tpm.
>
> Ian.