From: Jarkko Sakkinen <jarkko@kernel.org>
To: Arun Menon <armenon@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>
Subject: Re: [PATCH v4 5/6] tpm: Increase TPM_BUFSIZE to 8kB for chunking support
Date: Sun, 25 Oct 2026 23:00:42 +0200 [thread overview]
Message-ID: <at5t-u3h1sHGJFmk@kernel.org> (raw)
In-Reply-To: <at5tmTYX7ZjO_Q2m@kernel.org>
On Sun, Oct 25, 2026 at 10:59:09PM +0200, Jarkko Sakkinen wrote:
> On Mon, Oct 26, 2026 at 01:48:57AM +0530, Arun Menon wrote:
> > From: Arun Menon <armenon@redhat.com>
> >
> > The size of the command is checked against TPM_BUFSIZE early on before
> > even sending it to the backend. We therefore need to increase the
> > TPM_BUFSIZE to allow support for larger commands.
> >
> > For now, 8KB seems sufficient for ML-KEM and ML-DSA algorithms and it is
> > also order-1 safe.
> >
> > Signed-off-by: Arun Menon <armenon@redhat.com>
>
> In what timeline? Or is it out of spectrum timeline?
"For now" part concerns me and I'm not educated enough on topic to
know better.
Br, Jarkko
next prev parent reply other threads:[~2026-10-25 21:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-25 20:18 [PATCH v4 0/6] tpm_crb: Add command and response buffer " Arun Menon
2026-10-25 20:18 ` [PATCH v4 1/6] tpm_crb: Add register definitions of TPM CRB chunking fields Arun Menon
2026-10-25 20:18 ` [PATCH v4 2/6] tpm_crb: Split start method into a separate header Arun Menon
2026-10-25 20:55 ` Jarkko Sakkinen
2026-10-26 14:28 ` Arun Menon
2026-10-25 20:56 ` Jarkko Sakkinen
2026-10-25 20:18 ` [PATCH v4 3/6] tpm_crb: Add start_cmd parameter to tpm_crb_start wrapper Arun Menon
2026-10-25 20:18 ` [PATCH v4 4/6] tpm: tis_i2c: Use local 4KB buffer to limit memory usage Arun Menon
2026-10-25 20:18 ` [PATCH v4 5/6] tpm: Increase TPM_BUFSIZE to 8kB for chunking support Arun Menon
2026-10-25 20:59 ` Jarkko Sakkinen
2026-10-25 21:00 ` Jarkko Sakkinen [this message]
2026-10-26 14:30 ` Arun Menon
2026-10-26 19:32 ` Jarkko Sakkinen
2026-10-25 20:18 ` [PATCH v4 6/6] tpm_crb: Implement command and response chunking logic Arun Menon
2026-10-25 21:59 ` Jarkko Sakkinen
2026-10-26 14:31 ` Arun Menon
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