Re: [Qemu-devel] [PATCH] acpi: Make TPM 2.0 with TIS available as MSFT0101

[Stefan Berger]

On 1/28/19 12:49 PM, Michael S. Tsirkin wrote:
> On Mon, Jan 28, 2019 at 12:19:37PM -0500, Stefan Berger wrote:
> > On 1/28/19 11:14 AM, Stefan Berger wrote:
> > > On 1/28/19 9:45 AM, Igor Mammedov wrote:
> > > > On Fri, 25 Jan 2019 16:00:58 -0500
> > > > Stefan Berger <address@hidden> wrote:
> > > >
> > > > > This patch makes the a TPM 2.0 with TIS interface available under the
> > > > > HID 'MSF0101'. This is supported by Linux and also Windows now
> > > > MSF0101 is relatively recent addition to Linux,
> > > > are there in wild (old) kernels that worked with PNP0C31 but won't work
> > > > with MSF0101?
> > >
> > > Linux 4.3.4 and later references this HID here:
> > > https://elixir.bootlin.com/linux/v4.3.4/source/drivers/char/tpm/tpm_tis.c
> > > . I don't see it before that. A 3.10 kernel works with this patch as
> > > well.
> >
> > ... that 3.10 kernel from el7 has been patched, though.
> >
> >     Stefan
> .. and supports the new HID.
And this spec here also speaks for it: 
https://trustedcomputinggroup.org/wp-content/uploads/PC-ClientSpecific_Platform_Profile_for_TPM_2p0_Systems_v51.pdf

See chapter 8.