[Xen-devel] [PATCH v6 2/5] xen/arm: Implement modify_returncode

[Junghyun Yoo <yjhyun.yoo@xxxxxxxxxxx>]

Making sched_op in do_suspend (driver/xen/manage.c) returns 0 on the success of 
suspend.

Signed-off-by: Evgeny Fedotov <e.fedotov@xxxxxxxxxxx>
Signed-off-by: Junghyun Yoo <yjhyun.yoo@xxxxxxxxxxx>
---
 tools/libxc/xc_resume.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tools/libxc/xc_resume.c b/tools/libxc/xc_resume.c
index e423814..aee65f2 100644
--- a/tools/libxc/xc_resume.c
+++ b/tools/libxc/xc_resume.c
@@ -82,6 +82,26 @@ static int modify_returncode(xc_interface *xch, uint32_t 
domid)
     return 0;
 }
 
+#elif defined(__arm__) || defined(__aarch64__)
+
+static int modify_returncode(xc_interface *xch, uint32_t domid)
+{
+    vcpu_guest_context_any_t ctxt;
+    int rc;
+
+    /* XXX: HVM shutdown is not supported */
+
+    if ( (rc = xc_vcpu_getcontext(xch, domid, 0, &ctxt)) != 0 )
+        return rc;
+
+    ctxt.c.user_regs.x0 = 1; /* 64 bit support */
+
+    if ( (rc = xc_vcpu_setcontext(xch, domid, 0, &ctxt)) != 0 )
+        return rc;
+
+    return 0;
+}
+
 #else
 
 static int modify_returncode(xc_interface *xch, uint32_t domid)
-- 
1.8.1.2


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