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

[R Sricharan]

Hi,

On Sunday 03 February 2013 07:47 PM, Albert ARIBAUD wrote:
> Hi R Sicharan, Vincent,
>
> 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(-)
>
> Does that mean the rest of Vincent's patch set is not needed any more?
  Except for one patch that i have mentioned, rest are needed

   http://www.mail-archive.com/u-boot@lists.denx.de/msg102709.html

Regards,
  Sricharan