diff --git a/[refs] b/[refs]
index 9c4fdd107ec9..df33bfc00744 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 55d8085671863fe4ee6a17b7814bd38180a44e1d
+refs/heads/master: f6be37fdc62d0c0214bc49815d1180ebfbd716e2
diff --git a/trunk/arch/x86/Kconfig b/trunk/arch/x86/Kconfig
index 9c39095b33fc..bc2fbadff9f9 100644
--- a/trunk/arch/x86/Kconfig
+++ b/trunk/arch/x86/Kconfig
@@ -1803,7 +1803,7 @@ config DMAR
 	  remapping devices.
 
 config DMAR_DEFAULT_ON
-	def_bool n
+	def_bool y
 	prompt "Enable DMA Remapping Devices by default"
 	depends on DMAR
 	help