Julius Werner 487f7f24a5 arm64: mmu: Spot check security state for TTB mapping ... Since commit 372d0ff1d1 (arch/arm64: mmu: Spot check TTB memory attributes), we already check the memory attributes that the TTB region is mapped with to avoid configuration mistakes that cause weird issues (because the MMU walks the page tables with different memory attributes than they were written with). Unfortunately, we only checked cachability, but the security state attribute is just as important for this (because it is part of the cache tag, meaning that a cache entry created by accessing the non-secure mapping won't be used when trying to read the same address through a secure mapping... and since AArch64 page table walks are cache snooping and we rely on that behavior, this can lead to the MMU not seeing the new page table entries we just wrote). This patch adds the check for security state and cleans up that code a little. Change-Id: I70cda4f76f201b03d69a9ece063a3830b15ac04b Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/28017 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>		2018-08-13 12:24:56 +00:00
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armv8	arm64: mmu: Spot check security state for TTB mapping	2018-08-13 12:24:56 +00:00
include	arm64: Turn architectural register accessors into inline functions	2018-08-10 04:16:46 +00:00
arch_timer.c	arm64: Add ARCH Timer	2018-04-30 06:25:58 +00:00
arm_tf.c	lib/prog_loaders: Move argument selection into selfload	2018-06-19 14:28:01 +00:00
boot.c	arm64: Drop checks for current exception level, hardcode EL3 assumption	2018-08-10 04:16:25 +00:00
div0.c	arch/arm & arm64: Remove unnecessary whitespace before "\n"	2016-08-23 15:45:46 +02:00
eabi_compat.c
fit_payload.c	lib: Add FIT payload support	2018-06-19 18:10:05 +00:00
id.S
Kconfig	arch/arm64: Add Kconfig to include BL31 as blob	2018-07-26 00:44:33 +00:00
Makefile.inc	arch/arm64: Add Kconfig to include BL31 as blob	2018-07-26 00:44:33 +00:00
memcpy.S
memmove.S
memset.S
tables.c	lib/bootmem: Add more bootmem tags	2018-05-04 10:05:36 +00:00
transition.c	arm64: Drop checks for current exception level, hardcode EL3 assumption	2018-08-10 04:16:25 +00:00
transition_asm.S	arm64: Drop checks for current exception level, hardcode EL3 assumption	2018-08-10 04:16:25 +00:00