[U-Boot] [PATCH RESEND 0/3] ARM: mmu: Set domain permissions to client access
Albert ARIBAUD
albert.u.boot at aribaud.net
Thu Mar 28 09:44:18 CET 2013
Hi Sricharan,
On Tue, 5 Mar 2013 11:34:42 +0530, Sricharan R <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 is a repost of the older series to include
> Vincent's patch in the same one.
>
> R Sricharan (2):
> ARM: mmu: Introduce weak dram_bank_setup function
> ARM: mmu: Set domain permissions to client access
>
> Vincent Stehlé (1):
> ARM: cache: declare set_section_dcache
>
> arch/arm/cpu/armv7/cache_v7.c | 3 ++
> arch/arm/cpu/armv7/omap-common/hwinit-common.c | 35 ++++++++++++++++++++++++
> arch/arm/include/asm/cache.h | 2 ++
> arch/arm/include/asm/system.h | 14 ++++++++++
> arch/arm/lib/cache-cp15.c | 11 +++++++-
> 5 files changed, 64 insertions(+), 1 deletion(-)
>
Series applied to u-boot-arm/master, thanks!
Amicalement,
--
Albert.
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