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-rw-r--r--arch/arm64/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b10515c0200b..6062a52a084f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1037,6 +1037,19 @@ config ARM64_ERRATUM_2645198
If unsure, say Y.
+config ARM64_ERRATUM_2966298
+ bool "Cortex-A520: 2966298: workaround for speculatively executed unprivileged load"
+ default y
+ help
+ This option adds the workaround for ARM Cortex-A520 erratum 2966298.
+
+ On an affected Cortex-A520 core, a speculatively executed unprivileged
+ load might leak data from a privileged level via a cache side channel.
+
+ Work around this problem by executing a TLBI before returning to EL0.
+
+ If unsure, say Y.
+
config CAVIUM_ERRATUM_22375
bool "Cavium erratum 22375, 24313"
default y
@@ -1355,6 +1368,8 @@ choice
config CPU_BIG_ENDIAN
bool "Build big-endian kernel"
depends on !LD_IS_LLD || LLD_VERSION >= 130000
+ # https://github.com/llvm/llvm-project/commit/1379b150991f70a5782e9a143c2ba5308da1161c
+ depends on AS_IS_GNU || AS_VERSION >= 150000
help
Say Y if you plan on running a kernel with a big-endian userspace.