powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O
Verify memory entitlement updates can be handled by vio.
Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 848c3e5..64381a2 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -34,6 +34,7 @@
#include <asm/time.h>
#include <asm/prom.h>
#include <asm/vdso_datapage.h>
+#include <asm/vio.h>
#define MODULE_VERS "1.8"
#define MODULE_NAME "lparcfg"
@@ -527,6 +528,15 @@
u8 new_weight;
ssize_t rc;
+ if (entitlement) {
+ /* Check with vio to ensure the new memory entitlement
+ * can be handled.
+ */
+ rc = vio_cmo_entitlement_update(*entitlement);
+ if (rc)
+ return rc;
+ }
+
rc = h_get_mpp(&mpp_data);
if (rc)
return rc;