On Mon, Jul 15, 2024 at 01:33:18PM +0000, Benjamin BARATTE wrote:
> The number of PCR banks return by the tpm2_get_pcr_info() is related to
> TPM supported list of hash algorithm that could be greater than thus
> supported by U-Boot. This is not an issue as long as the PCR active bank
> hash an hash algorithm supported by U-Boot.
> Therefore, checking the number of PCR bank supported by the dTPM and
> thus supported by U-Boot doesn't make sense.
> This test shall be removed or shall reflect the maximum hash algorithm
> defined by the TPM2.0 spec 1.59 which is 8 hash algorithms.
>
> Signed-off-by: Benjamin BARATTE <benjamin.bara...@st.com>
> ---
>
> lib/tpm-v2.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
> index 59e6cbafaf..64a2f15fee 100644
> --- a/lib/tpm-v2.c
> +++ b/lib/tpm-v2.c
> @@ -413,14 +413,6 @@ int tpm2_get_pcr_info(struct udevice *dev, struct
> tpml_pcr_selection *pcrs)
> return ret;
>
> pcrs->count = get_unaligned_be32(response);
> - /*
> - * We only support 4 algorithms for now so check against that
> - * instead of TPM2_NUM_PCR_BANKS
> - */
> - if (pcrs->count > 4 || pcrs->count < 1) {
> - printf("%s: too many pcrs: %u\n", __func__, pcrs->count);
> - return -EMSGSIZE;
> - }
>
> ret = tpm2_get_num_pcr(dev, &num_pcr);
> if (ret)
> --
> 2.34.1
>
Reviewed-by: Ilias Apalodimas <ilias.apalodi...@linaro.org>
> ST Restricted
