qemu: introduce qemu_cpu_kick (Marcelo Tosatti)

To notify cpu of pending interrupt.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7243 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 11 insertions, 0 deletions

diff --git a/exec.c b/exec.c
index 8245ac0409..23013fbd13 100644
--- a/exec.c
+++ b/exec.c
@@ -1542,6 +1542,17 @@ void cpu_interrupt(CPUState *env, int mask)
     old_mask = env->interrupt_request;
     env->interrupt_request |= mask;
 
+#ifndef CONFIG_USER_ONLY
+    /*
+     * If called from iothread context, wake the target cpu in
+     * case its halted.
+     */
+    if (!qemu_cpu_self(env)) {
+        qemu_cpu_kick(env);
+        return;
+    }
+#endif
+
     if (use_icount) {
         env->icount_decr.u16.high = 0xffff;
 #ifndef CONFIG_USER_ONLY