1 files changed, 15 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fd27048087b8..5b46756e4c7c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1009,6 +1009,21 @@ config MTRR
 
           See <file:Documentation/mtrr.txt> for more information.
 
+config X86_PAT
+        def_bool y
+        prompt "x86 PAT support"
+        depends on MTRR && NONPROMISC_DEVMEM
+        help
+          Use PAT attributes to setup page level cache control.
+        ---help---
+          PATs are the modern equivalents of MTRRs and are much more
+          flexible than MTRRs.
+
+          Say N here if you see bootup problems (boot crash, boot hang,
+          spontaneous reboots) or a non-working Xorg.
+
+          If unsure, say Y.
+
 config EFI
         def_bool n
         prompt "EFI runtime service support"