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authorDavid S. Miller <davem@sunset.davemloft.net>2007-05-25 00:37:12 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-05-29 02:49:29 -0700
commit22d6a1cba3e9ec9baf8ce4d8dd1d088e112a64f1 (patch)
treeb16a912edb689cba40395f778acb3d5dd9426fd8 /arch/sparc64/prom
parent36b48973b8f1818d0ae6d16e548081d00162ae39 (diff)
downloadlinux-22d6a1cba3e9ec9baf8ce4d8dd1d088e112a64f1.tar.bz2
[SPARC64]: Report proper system soft state to the hypervisor.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/prom')
-rw-r--r--arch/sparc64/prom/misc.c19
1 files changed, 19 insertions, 0 deletions
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)
{