Re: [PATCH] xen/x86: Pass TPM ACPI table to PVH dom0

[Jason Andryuk <jason.andryuk@xxxxxxx>]

On 2025-12-15 04:46, Jan Beulich wrote:
> On 12.12.2025 23:29, Jason Andryuk wrote:
> > Pass the TPM2 ACPI table so that the device can be found by a PVH dom0.
> >
> > Otherwise dom0 shows:
> > tpm_tis MSFT0101:00: [Firmware Bug]: failed to get TPM2 ACPI table
> > tpm_tis MSFT0101:00: probe with driver tpm_tis failed with error -22
> >
> > TCPA is "Trusted Computing Platform Alliance table", but it is really
> > the table for a TPM 1.2.  Use that as the comment as it's more
> > identifiable for readers.
> Not sure about this particular aspect - this and ...
>
> > --- a/xen/include/acpi/actbl3.h
> > +++ b/xen/include/acpi/actbl3.h
> > @@ -78,8 +78,10 @@
> >   #define ACPI_SIG_CSRT           "CSRT"      /* Core System Resources Table */
> >   #define ACPI_SIG_MATR           "MATR"      /* Memory Address Translation 
> > Table */
> >   #define ACPI_SIG_MSDM           "MSDM"      /* Microsoft Data Management 
> > Table */
> > -#define ACPI_SIG_WPBT           "WPBT"       /* Windows Platform Binary Table 
> > */
> > +#define ACPI_SIG_TCPA           "TCPA"       /* TPM 1.2 Table */
> > +#define ACPI_SIG_TPM2           "TPM2"       /* TPM 2.0 Table */
> ... the TPM2 comment bring us out of sync with what Linux has there.
I'm fine with copying these from the Linux version to keep them in sync. 
 I should have realized this was an imported header when adding the 
entries.
Regards,
Jason