Re: [PATCH] tpm: Define TPM2_SPACE_BUFFER_SIZE to replace the use of PAGE_SIZE

From: Jarkko Sakkinen
Date: Fri Jul 03 2020 - 23:56:28 EST


On Thu, Jul 02, 2020 at 04:55:44PM -0700, Jerry Snitselaar wrote:
> On Fri Jul 03 20, Jarkko Sakkinen wrote:
> > The size of the buffers for storing context's and sessions can vary from
> > arch to arch as PAGE_SIZE can be anything between 4 kB and 256 kB (the
> > maximum for PPC64). Define a fixed buffer size set to 16 kB. This should be
> > enough for most use with three handles (that is how many we allow at the
> > moment). Parametrize the buffer size while doing this, so that it is easier
> > to revisit this later on if required.
> >
> > Reported-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
> > Cc: stable@xxxxxxxxxxxxxxx
> > Fixes: 745b361e989a ("tpm: infrastructure for TPM spaces")
> > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
>
> Reviewed-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx>

Thank you.

Now only needs tested-by from Stefan.

/Jarkko