From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Thu, 12 Jul 2007 11:32:22 +0000 (+0000)
Subject: Fix crash in set registers in PPC gdb-stub, by Jason Wessel.
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c19dbb9426a34a8e8cfdc5c285e8562ff3fe4f7a;p=qemu.git

Fix crash in set registers in PPC gdb-stub, by Jason Wessel.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3079 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index e3700b5f2c..84e6c39357 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -1493,10 +1493,12 @@ void do_store_msr (CPUPPCState *env, target_ulong value)
         break;
     }
     if (enter_pm) {
-        /* power save: exit cpu loop */
-        env->halted = 1;
-        env->exception_index = EXCP_HLT;
-        cpu_loop_exit();
+        if (likely(!env->halted)) {
+            /* power save: exit cpu loop */
+            env->halted = 1;
+            env->exception_index = EXCP_HLT;
+            cpu_loop_exit();
+        }
     }
 }