Add a single trigger for all diagnostic keyhandlers

Add a new keyhandler that triggers all the side-effect-free
keyhandlers.  This lets automated tests (and users) log the full set
of keyhandlers without having to be aware of which ones might reboot
the host.

Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/xen/common/kexec.c b/xen/common/kexec.c
index bb9fdf90a7..e85c2638b9 100644
--- a/xen/common/kexec.c
+++ b/xen/common/kexec.c
@@ -133,9 +133,14 @@ static void do_crashdump_trigger(unsigned char key)
     printk(" * no crash kernel loaded!\n");
 }
 
+static struct keyhandler crashdump_trigger_keyhandler = {
+    .u.fn = do_crashdump_trigger,
+    .desc = "trigger a crashdump"
+};
+
 static __init int register_crashdump_trigger(void)
 {
-    register_keyhandler('C', do_crashdump_trigger, "trigger a crashdump");
+    register_keyhandler('C', &crashdump_trigger_keyhandler);
     return 0;
 }
 __initcall(register_crashdump_trigger);