a20 fix
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@477 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/target-i386/helper2.c b/target-i386/helper2.c
index 9abf7ff..47c18fb 100644
--- a/target-i386/helper2.c
+++ b/target-i386/helper2.c
@@ -190,6 +190,10 @@
{
a20_state = (a20_state != 0);
if (a20_state != a20_enabled) {
+ /* if the cpu is currently executing code, we must unlink it and
+ all the potentially executing TB */
+ cpu_interrupt(env, 0);
+
/* when a20 is changed, all the MMU mappings are invalid, so
we must flush everything */
page_unmap();