tree 03ded1f537f9b0c2857f6efe1de441635206466b
parent fb74cc160923acb936b4353033971e2c9159a15b
author Alexander Graf <agraf@suse.de> 1457050186 +0100
committer Tom Rini <trini@konsulko.com> 1458069180 -0400

arm64: Disable TTBR1 maps in EL1

When running in EL1, AArch64 knows two page table maps. One with addresses
that start with all zeros (TTBR0) and one with addresses that start with all
ones (TTBR1).

In U-Boot we don't care about the high up maps, so just disable them to ensure
we don't walk an invalid page table by accident.

Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>