[SPARC64]: Fix setting of variables in LDOM guest.

There is a special domain services capability for setting
variables in the OBP options node.  Guests don't have permanent
store for the OBP variables like a normal system, so they are
instead maintained in the LDOM control node or in the SC.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 2 deletions

diff --git a/arch/sparc64/prom/tree.c b/arch/sparc64/prom/tree.c
index 500f05e2cfcb..17b7ecfe7ca9 100644
--- a/arch/sparc64/prom/tree.c
+++ b/arch/sparc64/prom/tree.c
@@ -13,6 +13,7 @@
 
 #include <asm/openprom.h>
 #include <asm/oplib.h>
+#include <asm/ldc.h>
 
 /* Return the child of node 'node' or zero if no this node has no
  * direct descendent.
@@ -261,9 +262,17 @@ int prom_node_has_property(int node, const char *prop)
 int
 prom_setprop(int node, const char *pname, char *value, int size)
 {
-        if(size == 0) return 0;
-        if((pname == 0) || (value == 0)) return 0;
+        if (size == 0)
+                return 0;
+        if ((pname == 0) || (value == 0))
+                return 0;
         
+#ifdef CONFIG_SUN_LDOMS
+        if (ldom_domaining_enabled) {
+                ldom_set_var(pname, value);
+                return 0;
+        }
+#endif
         return p1275_cmd ("setprop", P1275_ARG(1,P1275_ARG_IN_STRING)|
                                           P1275_ARG(2,P1275_ARG_IN_BUF)|
                                           P1275_INOUT(4, 1),