1 files changed, 10 insertions, 0 deletions

diff --git a/arch/xtensa/Kconfig.debug b/arch/xtensa/Kconfig.debug
index a34010e0e51c..af7da74d535f 100644
--- a/arch/xtensa/Kconfig.debug
+++ b/arch/xtensa/Kconfig.debug
@@ -2,6 +2,16 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+config DEBUG_TLB_SANITY
+        bool "Debug TLB sanity"
+        depends on DEBUG_KERNEL
+        help
+          Enable this to turn on TLB sanity check on each entry to userspace.
+          This check can spot missing TLB invalidation/wrong PTE permissions/
+          premature page freeing.
+
+          If unsure, say N.
+
 config LD_NO_RELAX
         bool "Disable linker relaxation"
         default n