Re: [U-Boot] [PATCH v2 09/10] armv8: mmu: Add a function to change mapping attributes

On 02/15/2017 03:18 PM, York Sun wrote:

Function mmu_change_region_attr() is added to change existing mapping with updated PXN, UXN and memory type. This is a break-before-make process during which the mapping becomes fault (invalid) before final attributres are set.

Signed-off-by: York Sun york.sun@nxp.com

Changes in v2: None

arch/arm/cpu/armv8/cache_v8.c | 72 +++++++++++++++++++++++++++++++++++++--- arch/arm/include/asm/armv8/mmu.h | 5 +++ arch/arm/include/asm/system.h | 1 + 3 files changed, 74 insertions(+), 4 deletions(-)

Guys,

Are you OK with this change?

York