imx: hab: Ensure the IVT DCD pointer is Null prior to calling HAB authenticate function.
authorUtkarsh Gupta <utkarsh.gupta@nxp.com>
Tue, 20 Feb 2018 01:19:23 +0000 (01:19 +0000)
committerStefano Babic <sbabic@denx.de>
Thu, 22 Feb 2018 13:35:32 +0000 (14:35 +0100)
commit8c4037a09a5c2f15aae4c79860a31c8045bd4ee8
tree365ea6f5464070972b5bac125565bd7fff1d8315
parent669f2d189e4c3a738ad2863a5f8f66a85d468bd9
imx: hab: Ensure the IVT DCD pointer is Null prior to calling HAB authenticate function.

DCD commands should only be present in the initial boot image loaded by
the SoC ROM. DCD should not be present in images that will be verified
by software using HAB RVT authentication APIs. Newer versions of HAB
will generate an error if a DCD pointer is present in an image being
authenticated by calling the HAB RVT API. Older versions of HAB will
process and run DCD if it is present, and this could lead to an incorrect
authentication boot flow.

It is highly recommended this check is in place to ensure additional HAB
verified images do not include a DCD table.

Signed-off-by: Utkarsh Gupta <utkarsh.gupta@nxp.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
arch/arm/mach-imx/hab.c