[SPARC64]: Report proper system soft state to the hypervisor.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 699b24b..5d6adea 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -19,6 +19,7 @@
 #include <asm/prom.h>
 #include <asm/of_device.h>
 #include <asm/io.h>
+#include <asm/sstate.h>
 
 #include <linux/unistd.h>
 
@@ -53,6 +54,7 @@
 
 void machine_power_off(void)
 {
+	sstate_poweroff();
 	if (!serial_console || scons_pwroff) {
 #ifdef CONFIG_PCI
 		if (power_reg) {