1 files changed, 23 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 757c0296e0b8..97619fd51e39 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -40,3 +40,26 @@ config PPC_PSERIES_DEBUG
         depends on PPC_PSERIES && PPC_EARLY_DEBUG
         bool "Enable extra debug logging in platforms/pseries"
         default y
+
+config PPC_SMLPAR
+        bool "Support for shared-memory logical partitions"
+        depends on PPC_PSERIES
+        select LPARCFG
+        default n
+        help
+          Select this option to enable shared memory partition support.
+          With this option a system running in an LPAR can be given more
+          memory than physically available and will allow firmware to
+          balance memory across many LPARs.
+
+config CMM
+        tristate "Collaborative memory management"
+        depends on PPC_SMLPAR
+        default y
+        help
+          Select this option, if you want to enable the kernel interface
+          to reduce the memory size of the system. This is accomplished
+          by allocating pages of memory and put them "on hold". This only
+          makes sense for a system running in an LPAR where the unused pages
+          will be reused for other LPARs. The interface allows firmware to
+          balance memory across many LPARs.