[PATCH 1/6] bloblist: add blob type for DT overlay

Raymond Mao raymond.mao at linaro.org
Thu Jun 19 16:43:31 CEST 2025


Hi Tom,

On Wed, 18 Jun 2025 at 18:04, Tom Rini <trini at konsulko.com> wrote:
>
> On Wed, Jun 18, 2025 at 03:53:15PM -0400, Raymond Mao wrote:
> > Hi Tom,
> >
> > On Wed, 18 Jun 2025 at 13:37, Tom Rini <trini at konsulko.com> wrote:
> > >
> > > On Wed, Jun 18, 2025 at 07:59:23AM -0700, Raymond Mao wrote:
> > >
> > > > Add blob type for DT overlay according to the update of Firmware
> > > > Handoff spec[1].
> > > >
> > > > [1] https://github.com/FirmwareHandoff/firmware_handoff/pull/74
> > > >
> > > > Signed-off-by: Raymond Mao <raymond.mao at linaro.org>
> > >
> > > Once merged, this should be a Link: line for tooling to better pick it
> > > up. And I don't want to merge this here until it is merged / agreed to
> > > in FirmwareHandoff.
> > >
> > > > diff --git a/include/bloblist.h b/include/bloblist.h
> > > > index f32faf78560..b40e04fe2d3 100644
> > > > --- a/include/bloblist.h
> > > > +++ b/include/bloblist.h
> > > > @@ -110,7 +110,8 @@ enum bloblist_tag_t {
> > > >       BLOBLISTT_ACPI_TABLES = 4,
> > > >       BLOBLISTT_TPM_EVLOG = 5,
> > > >       BLOBLISTT_TPM_CRB_BASE = 6,
> > > > -     BLOBLISTT_ACPI_PP = 7,
> > > > +     BLOBLISTT_FDT_OVERLAY = 7,
> > > > +     BLOBLISTT_ACPI_PP = 8,
> > >
> > > ... sigh, so BLOBLISTT_ACPI_PP isn't something in FirmwareHandoff yet.
> > > Was someone working on that it should it be moved down to the project
> > > internal numbering area?
> > Since we decided to make bloblist compliant to Firmware Handoff, it is
> > required to get an ID placeholder in the spec first (at least a PR)
> > before updating the code to avoid conflicts, but BLOBLISTT_ACPI_PP
> > does not exist in the spec. In this case, I will consider it as a test
> > only ID and can be shifted. Or I can move it into the custom range if
> > you think that is better.
>
> I'm hoping maybe Patrick will chime in at least as yes, we should either
> upstream it, or move it.
I think shifting it to 8 makes sense, that is an un-occupied ID and is
not blocking for submitting PR with.

Regards,
Raymond

>
> --
> Tom


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