1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 66a3d8cee5c..53d0955abf1 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -342,6 +342,14 @@ config PPC_64K_PAGES
           while on hardware with such support, it will be used to map
           normal application pages.
 
+config PPC_SUBPAGE_PROT
+        bool "Support setting protections for 4k subpages"
+        depends on PPC_64K_PAGES
+        help
+          This option adds support for a system call to allow user programs
+          to set access permissions (read/write, readonly, or no access)
+          on the 4k subpages of each 64k page.
+
 config SCHED_SMT
         bool "SMT (Hyperthreading) scheduler support"
         depends on PPC64 && SMP