diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 57c4c995965f..0897984918e8 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1939,6 +1939,17 @@ config ARM64_SVE
 	  booting the kernel.  If unsure and you are not observing these
 	  symptoms, you should assume that it is safe to say Y.
 
+config ARM64_SME
+	bool "ARM Scalable Matrix Extension support"
+	default y
+	depends on ARM64_SVE
+	help
+	  The Scalable Matrix Extension (SME) is an extension to the AArch64
+	  execution state which utilises a substantial subset of the SVE
+	  instruction set, together with the addition of new architectural
+	  register state capable of holding two dimensional matrix tiles to
+	  enable various matrix operations.
+
 config ARM64_MODULE_PLTS
 	bool "Use PLTs to allow module memory to spill over into vmalloc area"
 	depends on MODULES