Commit 73a7496c authored by Gaurav Jain's avatar Gaurav Jain Committed by Herbert Xu
Browse files

crypto: caam - use JobR's space to access page 0 regs 



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: 6a83830f ("crypto: caam - warn if blob_gen key is insecure")
Signed-off-by: default avatarGaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: default avatarAhmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: default avatarHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4e6ccd94

drivers/crypto/caam/blob_gen.c

+2 −1
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
/*

 * Copyright (C) 2015 Pengutronix, Steffen Trumtrar <kernel@pengutronix.de>

 * Copyright (C) 2021 Pengutronix, Ahmad Fatoum <kernel@pengutronix.de>

 * 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");