defconfig: msmcortex: Enable PAN emulation

Privilege Access Never (PAN) enforces the usage of
copy_to_user/copy_from_user and friends when kernel accesses data from
user space. If user space memory is accessed outside of these functions
a kernel panic occurs.

Change-Id: Ic32ad8ecb6d921293fca74664116098723afc436
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>

diff --git a/arch/arm64/configs/msmcortex-perf_defconfig b/arch/arm64/configs/msmcortex-perf_defconfig
index a5c58dc..2fda53f 100644 (file)
--- a/arch/arm64/configs/msmcortex-perf_defconfig
+++ b/arch/arm64/configs/msmcortex-perf_defconfig
@@ -71,6 +71,7 @@ CONFIG_ARMV8_DEPRECATED=y
 CONFIG_SWP_EMULATION=y
 CONFIG_CP15_BARRIER_EMULATION=y
 CONFIG_SETEND_EMULATION=y
+CONFIG_ARM64_SW_TTBR0_PAN=y
 CONFIG_RANDOMIZE_BASE=y
 # CONFIG_RANDOMIZE_MODULE_REGION_FULL is not set
 # CONFIG_EFI is not set

diff --git a/arch/arm64/configs/msmcortex_defconfig b/arch/arm64/configs/msmcortex_defconfig
index 7a82377..5c88fd4 100644 (file)
--- a/arch/arm64/configs/msmcortex_defconfig
+++ b/arch/arm64/configs/msmcortex_defconfig
@@ -71,6 +71,7 @@ CONFIG_ARMV8_DEPRECATED=y
 CONFIG_SWP_EMULATION=y
 CONFIG_CP15_BARRIER_EMULATION=y
 CONFIG_SETEND_EMULATION=y
+CONFIG_ARM64_SW_TTBR0_PAN=y
 CONFIG_RANDOMIZE_BASE=y
 CONFIG_BUILD_ARM64_APPENDED_DTB_IMAGE=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set