Hi,
On Sunday 03 February 2013 07:49 PM, R Sricharan wrote:
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.sricha...@ti.com>
wrote: i meant
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-ste...@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
Sorry..
i meant Except for one patch, rest are "not needed"
Regards,
Sricharan
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