On 22 July 2015 at 17:10, Stephen Warren swarren@wwwdotorg.org wrote:
From: Thierry Reding treding@nvidia.com
While generating the page tables, a running integer index is shifted by SECTION_SHIFT (29) and causes overflow for any integer bigger than 7. The page tables therefore alias to the same 8 sections and cause U-Boot to hang once the MMU is enabled.
Fix this by making the index a 64-bit unsigned integer and so avoid the overflow.
swarren notes: currently "i" ranges from 0..8191 on all ARM64 boards, and "j" varies depending on RAM size; from 4 to 11 for a board with 4GB at physical address 2GB, as some Tegra boards have.
Signed-off-by: Thierry Reding treding@nvidia.com Signed-off-by: Tom Warren twarren@nvidia.com Signed-off-by: Stephen Warren swarren@nvidia.com
arch/arm/cpu/armv8/cache_v8.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org