From 22d6a1cba3e9ec9baf8ce4d8dd1d088e112a64f1 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Fri, 25 May 2007 00:37:12 -0700
Subject: [SPARC64]: Report proper system soft state to the hypervisor.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc64/prom/misc.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'arch/sparc64/prom')

diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c
index 0b4213720d43..f3e0c14e9eef 100644
--- a/arch/sparc64/prom/misc.c
+++ b/arch/sparc64/prom/misc.c
@@ -15,6 +15,25 @@
 #include <asm/oplib.h>
 #include <asm/system.h>
 
+int prom_service_exists(const char *service_name)
+{
+	int err = p1275_cmd("test", P1275_ARG(0, P1275_ARG_IN_STRING) |
+			    P1275_INOUT(1, 1), service_name);
+
+	if (err)
+		return 0;
+	return 1;
+}
+
+void prom_sun4v_guest_soft_state(void)
+{
+	const char *svc = "SUNW,soft-state-supported";
+
+	if (!prom_service_exists(svc))
+		return;
+	p1275_cmd(svc, P1275_INOUT(0, 0));
+}
+
 /* Reset and reboot the machine with the command 'bcommand'. */
 void prom_reboot(const char *bcommand)
 {
-- 
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