[PATCH 2/6] ARM: mmu: Add VBAR setup

[Sascha Hauer]

On Thu, Dec 31, 2015 at 09:58:34PM -0800, Andrey Smirnov wrote:
> Add code to make sure that normal vector exception table, when it is
> used due to unavailability of the high vector table, was not re-mapped
> from 0x0 via VBAR by someone else before us.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
> ---
>  arch/arm/cpu/mmu.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
> index 784221c..e32523b 100644
> --- a/arch/arm/cpu/mmu.c
> +++ b/arch/arm/cpu/mmu.c
> @@ -302,6 +302,12 @@ static void vectors_init(void)
>  		 * live without being able to catch NULL pointer dereferences
>  		 */
>  		exc = arm_create_pte(0x0);
> +
> +		/*
> +		  Make sure that vecotrs are not re-mapped from 0x0
> +		  via VBAR (no-op on non-ARMv7)
> +		 */

s/vecotrs/vectors/

/*
 * Please use this multimline
 * comment style.
 */

Sascha


-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |