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-rw-r--r--arch/powerpc/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 66a3d8c..53d0955 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