Re: [PATCH v3] acpi: Extend TPM2 ACPI table with missing log fields

[Stefan Berger]

On 4/2/20 3:21 PM, Jarkko Sakkinen wrote:
> On Wed, Apr 01, 2020 at 11:05:36AM +0200, Rafael J. Wysocki wrote:
> > On Wed, Apr 1, 2020 at 10:37 AM Jarkko Sakkinen
> > <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
> > > On Tue, Mar 31, 2020 at 05:49:49PM -0400, Stefan Berger wrote:
> > > > From: Stefan Berger <stefanb@xxxxxxxxxxxxx>
> > > >
> > > > Recent extensions of the TPM2 ACPI table added 3 more fields
> > > > including 12 bytes of start method specific parameters and Log Area
> > > > Minimum Length (u32) and Log Area Start Address (u64). So, we extend
> > > > the existing structure with these fields to allow non-UEFI systems
> > > > to access the TPM2's log.
> > > >
> > > > The specification that has the new fields is the following:
> > > >    TCG ACPI Specification
> > > >    Family "1.2" and "2.0"
> > > >    Version 1.2, Revision 8
> > > >
> > > > Adapt all existing table size calculations to use
> > > > offsetof(struct acpi_table_tpm2, start_method_specific)
> > > > [where start_method_specific is a newly added field]
> > > > rather than sizeof(struct acpi_table_tpm2) so that the addition
> > > > of the new fields does not affect current systems that may not
> > > > have them.
> > > >
> > > > Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
> > > > Cc: linux-acpi@xxxxxxxxxxxxxxx
> > > I think I'm cool with this but needs an ack from ACPI maintainer.
> > >
> > > Rafael, given that this not an intrusive change in any possible means,
> > > can I pick this patch and put it to my next pull request?
> > Yes, please.
> >
> > Thanks!
> Great, thanks Rafael.
>
> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
>
> Do you mind if I add your ack to the commit?


Any chance to get v4 applied?


> /Jarkko