Support for master winkle.

RTC: 44730
Change-Id: Ifaeecc659e1bfd8ded4744dc591fc993471519ba
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1471
Tested-by: Jenkins Server
Reviewed-by: Mark W. Wenning <wenning@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/lib/syscall_misc.C b/src/lib/syscall_misc.C
index 7b23ef22b..c1b47b772 100644
--- a/src/lib/syscall_misc.C
+++ b/src/lib/syscall_misc.C
@@ -25,6 +25,7 @@
 
 #include <sys/misc.h>
 #include <sys/syscall.h>
+#include <sys/task.h>
 
 using namespace Systemcalls;
 
@@ -85,6 +86,13 @@ uint64_t cpu_spr_value(CpuSprNames spr)
 
 int cpu_master_winkle()
 {
-    return 0;
+    task_affinity_pin();
+    task_affinity_migrate_to_master();
+
+    int rc = reinterpret_cast<int64_t>(_syscall0(MISC_CPUWINKLE));
+
+    task_affinity_unpin();
+
+    return rc;
 }