Merge tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

[sfrench/cifs-2.6.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f87590c3c382098da10890a2ff3eea3b257ff9cb..53bab123a8ee40a2484ae63b29cac4e8f545ee32 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2290,6 +2290,17 @@ config RANDOMIZE_MEMORY_PHYSICAL_PADDING
 
          If unsure, leave at the default value.
 
+config ADDRESS_MASKING
+       bool "Linear Address Masking support"
+       depends on X86_64
+       help
+         Linear Address Masking (LAM) modifies the checking that is applied
+         to 64-bit linear addresses, allowing software to use of the
+         untranslated address bits for metadata.
+
+         The capability can be used for efficient address sanitizers (ASAN)
+         implementation and for optimizations in JITs.
+
 config HOTPLUG_CPU
        def_bool y
        depends on SMP