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author | Justin M. Forbes <jforbes@fedoraproject.org> | 2020-09-03 11:45:01 -0500 |
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committer | Justin M. Forbes <jforbes@fedoraproject.org> | 2020-09-03 11:45:01 -0500 |
commit | 6681bf218f9556b094e34f5f854b20d42d7e2e84 (patch) | |
tree | 144f7d142e6e6337c62d322fe98bbe22df582bcf /configs/fedora/generic/CONFIG_ARM64_BTI | |
parent | 7e438814446efb0840cb66d40c904594fd0df8f4 (diff) | |
download | kernel-6681bf218f9556b094e34f5f854b20d42d7e2e84.tar.gz kernel-6681bf218f9556b094e34f5f854b20d42d7e2e84.tar.xz kernel-6681bf218f9556b094e34f5f854b20d42d7e2e84.zip |
Linux v5.7.6 rebase
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Diffstat (limited to 'configs/fedora/generic/CONFIG_ARM64_BTI')
-rw-r--r-- | configs/fedora/generic/CONFIG_ARM64_BTI | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/configs/fedora/generic/CONFIG_ARM64_BTI b/configs/fedora/generic/CONFIG_ARM64_BTI new file mode 100644 index 000000000..5af4d535b --- /dev/null +++ b/configs/fedora/generic/CONFIG_ARM64_BTI @@ -0,0 +1,31 @@ +# CONFIG_ARM64_BTI: +# +# Branch Target Identification (part of the ARMv8.5 Extensions) +# provides a mechanism to limit the set of locations to which computed +# branch instructions such as BR or BLR can jump. +# +# To make use of BTI on CPUs that support it, say Y. +# +# BTI is intended to provide complementary protection to other control +# flow integrity protection mechanisms, such as the Pointer +# authentication mechanism provided as part of the ARMv8.3 Extensions. +# For this reason, it does not make sense to enable this option without +# also enabling support for pointer authentication. Thus, when +# enabling this option you should also select ARM64_PTR_AUTH=y. +# +# Userspace binaries must also be specifically compiled to make use of +# this mechanism. If you say N here or the hardware does not support +# BTI, such binaries can still run, but you get no additional +# enforcement of branch destinations. +# +# Symbol: ARM64_BTI [=y] +# Type : bool +# Defined at arch/arm64/Kconfig:1594 +# Prompt: Branch Target Identification support +# Location: +# -> Kernel Features +# -> ARMv8.5 architectural features +# +# +# +CONFIG_ARM64_BTI=y |