[U-Boot] [PATCH 0/2] ARM: mmu: Set domain permissions to client access

[Albert ARIBAUD]

(sorry for any duplicate of this mail)

Hi R Sricharan,

On Tue, 8 Jan 2013 23:38:22 +0530, R Sricharan <r.sricharan at ti.com>
wrote:

> Currently for ARM based cpu's, mmu pagetable attributes are set with
> manager permissions for all 4GB address space. Because of this the
> 'execute never (XN)' permission is never checked on read sensitive
> regions which results in speculative aborts.
> 
> This series changes the domain permissions of the full 4GB space
> to client access for OMAP socs. This avoids all the speculative
> aborts that are currently seen on OMAP5 secure devices.
> 
> Tested on OMAP5 SDP (HS) soc.
> 
> This series depends on [1] the patch sent by 
> <Vincent Stehle <v-stehle at ti.com>
> 
> [1] http://www.mail-archive.com/u-boot@lists.denx.de/msg102709.html
> 
> R Sricharan (2):
>   ARM: mmu: Introduce weak dram_bank_setup function
>   ARM: mmu: Set domain permissions to client access
> 
>  arch/arm/cpu/armv7/cache_v7.c                  |    3 ++
>  arch/arm/cpu/armv7/omap-common/hwinit-common.c |   35 ++++++++++++++++++++++++
>  arch/arm/include/asm/cache.h                   |    1 +
>  arch/arm/include/asm/system.h                  |   14 ++++++++++
>  arch/arm/lib/cache-cp15.c                      |   13 ++++++++-
>  5 files changed, 65 insertions(+), 1 deletion(-)
> 

Series applied to u-boot-arm/master, thanks!

Amicalement,
-- 
Albert.