Re: [PATCH v1 1/3] virt: tsm: Document size limits for outblob attributes
From: dan.j.williams
Date: Wed Feb 11 2026 - 15:49:27 EST
Kuppuswamy Sathyanarayanan wrote:
> Hi Dan,
>
> On 2/10/2026 6:15 PM, dan.j.williams@xxxxxxxxx wrote:
> > Kuppuswamy Sathyanarayanan wrote:
> >> The configfs-tsm-report interface can fail with -EFBIG when the
> >> attestation report generated by a TSM provider exceeds internal
> >> maximums (TSM_REPORT_OUTBLOB_MAX). However, this error condition and
> >> its handling are not currently documented in the ABI.
> >>
> >> Userspace tools need to understand how to interpret various error
> >> conditions when reading attestation reports.
> >>
> >> Document that reads fail with -EFBIG when reports exceed size limits,
> >> with guidance on how to resolve them.
> >>
> >> Reviewed-by: Fang Peter <peter.fang@xxxxxxxxx>
> >> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
> >
> > Looks good, I will change the subject to:
> >
> > "configfs-tsm-report: Document size limits for outblob attributes"
>
>
> Thanks for the review! Are you planning to apply this with the updated
> subject line, or would you like me to send a v2 with the change?
Given the late date I went ahead and made the change and pushed it out
to start soaking in linux-next:
https://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm.git/log/?h=next