cpu: Move exception_index field from CPU_COMMON to CPUState

Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/target-i386/misc_helper.c b/target-i386/misc_helper.c
index 47f6a2f..582ad34 100644
--- a/target-i386/misc_helper.c
+++ b/target-i386/misc_helper.c
@@ -568,10 +568,11 @@
 
 static void do_pause(X86CPU *cpu)
 {
+    CPUState *cs = CPU(cpu);
     CPUX86State *env = &cpu->env;
 
     /* Just let another CPU run.  */
-    env->exception_index = EXCP_INTERRUPT;
+    cs->exception_index = EXCP_INTERRUPT;
     cpu_loop_exit(env);
 }
 
@@ -582,7 +583,7 @@
 
     env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
     cs->halted = 1;
-    env->exception_index = EXCP_HLT;
+    cs->exception_index = EXCP_HLT;
     cpu_loop_exit(env);
 }
 
@@ -638,6 +639,8 @@
 
 void helper_debug(CPUX86State *env)
 {
-    env->exception_index = EXCP_DEBUG;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+
+    cs->exception_index = EXCP_DEBUG;
     cpu_loop_exit(env);
 }