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

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BugLink: https://bugs.launchpad.net/bugs/2111953

[ Upstream commit 73a7496c218b7ca19ba276f54758e7f0adf269c5 ]

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: 6a83830f64 ("crypto: caam - warn if blob_gen key is insecure")
Signed-off-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Gaurav Jain
2024-11-26 12:16:07 +05:30
committed by Mehmet Basaran
parent 3ca73f644d
commit 16a8cf1e23
1 changed files with 2 additions and 1 deletions
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drivers/crypto/caam/blob_gen.c
+2 -1
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@@ -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");