[SeaBIOS] SeaBIOS Digest, Vol 72, Issue 33

[Kevin O'Connor]

On Tue, Dec 22, 2015 at 11:03:09AM -0500, Stefan Berger wrote:
> "Kevin O'Connor" <kevin at koconnor.net> wrote on 12/22/2015 10:40:03 AM:
> > On Mon, Dec 21, 2015 at 11:50:07AM -0500, Stefan Berger wrote:
> > > tpm_foo()
> > > {
> > >     [...]
> > > 
> > >     switch (tpmversion) {
> > >     case TPM_VERSION_1_2:
> > >         tpm12_foo()
> > >         break;
> > >     case TPM_VERSION_2:
> > >         tpm2_foo();
> > >         break;
> > >     }
> > > 
> > >     [...]
> > > }
> > 
> > Is the difference between 1.2 and 2.0 so large that the above is
> > needed?
> 
> TPM 2 and TPM 1.2 have completely different commands, so yes, 
> unfortunately it's needed.

Okay.  Just so I understand, is TPM 2.0 a new interface to the
hardware, new BIOS API, or both?

-Kevin