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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 2/6] ARM: mmu: Add VBAR setup
Date: Mon, 4 Jan 2016 10:04:20 +0100	[thread overview]
Message-ID: <20160104090420.GE13058@pengutronix.de> (raw)
In-Reply-To: <1451627918-31967-2-git-send-email-andrew.smirnov@gmail.com>

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@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


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  reply	other threads:[~2016-01-04  9:04 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-01  5:58 [PATCH 1/6] ARM: asm: Add convenience fucntions to access VBAR Andrey Smirnov
2016-01-01  5:58 ` [PATCH 2/6] ARM: mmu: Add VBAR setup Andrey Smirnov
2016-01-04  9:04   ` Sascha Hauer [this message]
2016-01-01  5:58 ` [PATCH 3/6] ARM: Fix exception table setup in MMU-less mode Andrey Smirnov
2016-01-04  9:27   ` Sascha Hauer
2016-01-04 17:01     ` Andrey Smirnov
2016-01-05  7:40       ` Sascha Hauer
2016-01-01  5:58 ` [PATCH 4/6] i.MX6: pci: Replace magic number with a named constant Andrey Smirnov
2016-01-07  9:04   ` Lucas Stach
2016-01-08  7:53     ` Sascha Hauer
2016-01-01  5:58 ` [PATCH 5/6] i.MX6: pci: Reconcile imx6_pcie_start_link with the kernel code Andrey Smirnov
2016-01-07  9:08   ` Lucas Stach
2016-01-01  5:58 ` [PATCH 6/6] i.MX6: pci: Avoid aborts when asserting PCIe reset Andrey Smirnov
2016-01-04  9:30   ` Sascha Hauer
2016-01-07  9:13   ` Lucas Stach

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