From: Ian Jackson <ian@davenant.greenend.org.uk>
Date: Tue, 30 Dec 2008 16:49:29 +0000 (+0000)
Subject: Do not install signal handlers in qemu-dm
X-Git-Tag: t.master-before-merge~43
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=1707bb348b401ddb08ace69b4fa1384cbaaff1b4;p=qemu-xen-4.2-testing.git

Do not install signal handlers in qemu-dm

Instead, if we get a terminating signal, just die.  This means that
xend can kill us.  Unlike upstream qemu, we are not at risk from being
sent random console signals as an attempt to cleanly terminate the
domain.

Thanks to report from Dexuan Cui <dexuan.cui@intel.com>.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
---

diff --git a/vl.c b/vl.c
index 99ebd9de8..ac38c2abe 100644
--- a/vl.c
+++ b/vl.c
@@ -8885,7 +8885,11 @@ static void termsig_setup(void)
     struct sigaction act;
 
     memset(&act, 0, sizeof(act));
+#ifndef CONFIG_DM
     act.sa_handler = termsig_handler;
+#else
+    act.sa_handler = SIG_DFL;
+#endif
     sigaction(SIGINT,  &act, NULL);
     sigaction(SIGHUP,  &act, NULL);
     sigaction(SIGTERM, &act, NULL);