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Catalin Marinas 8e620b0476 arm64: Distinguish between user and kernel XN bits 
On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN
(privileged) bit must be set to prevent kernel execution. Without the
PXN bit set, the CPU may speculatively access device memory. This patch
ensures that all the mappings that the kernel must not execute from
(including user mappings) have the PXN bit set.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 		2012-11-16 15:50:25 +00:00
..
boot arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
configs arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
include arm64: Distinguish between user and kernel XN bits 2012-11-16 15:50:25 +00:00
kernel arm64: smp: add missing completion for secondary boot 2012-11-08 16:06:21 +00:00
lib arm64: Miscellaneous library functions 2012-09-17 13:42:18 +01:00
mm arm64: mm: fix booting on systems with no memory below 4GB 2012-11-08 16:06:21 +00:00
Kconfig arm64: compat: select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION 2012-11-08 16:06:20 +00:00
Kconfig.debug arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
Makefile arm64: Build infrastructure 2012-09-17 13:42:21 +01:00