On 26.11.24 07:46, Gaurav Jain wrote:
> On iMX8DXL/QM/QXP(SECO) & iMX8ULP(ELE) SoCs, access to controller
> region(CAAM page 0) is not permitted from non secure world.
> use JobR's register space to access page 0 registers.
>
> Fixes: 6a83830f649a ("crypto: caam - warn if blob_gen key is insecure")
> Signed-off-by: Gaurav Jain <gaurav.jain@xxxxxxx>
Reviewed-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> ---
>
> changes in v2
> Updated commit message with SoCs details on which CAAM page 0 is not
> accessible from non secure world.
>
> drivers/crypto/caam/blob_gen.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/crypto/caam/blob_gen.c b/drivers/crypto/caam/blob_gen.c
> index 87781c1534ee..079a22cc9f02 100644
> --- a/drivers/crypto/caam/blob_gen.c
> +++ b/drivers/crypto/caam/blob_gen.c
> @@ -2,6 +2,7 @@
> /*
> * Copyright (C) 2015 Pengutronix, Steffen Trumtrar <kernel@xxxxxxxxxxxxxx>
> * Copyright (C) 2021 Pengutronix, Ahmad Fatoum <kernel@xxxxxxxxxxxxxx>
> + * Copyright 2024 NXP
> */
>
> #define pr_fmt(fmt) "caam blob_gen: " fmt
> @@ -104,7 +105,7 @@ int caam_process_blob(struct caam_blob_priv *priv,
> }
>
> ctrlpriv = dev_get_drvdata(jrdev->parent);
> - moo = FIELD_GET(CSTA_MOO, rd_reg32(&ctrlpriv->ctrl->perfmon.status));
> + moo = FIELD_GET(CSTA_MOO, rd_reg32(&ctrlpriv->jr[0]->perfmon.status));
> if (moo != CSTA_MOO_SECURE && moo != CSTA_MOO_TRUSTED)
> dev_warn(jrdev,
> "using insecure test key, enable HAB to use unique device key!\n");
--
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