The select() in the IO thread may wait a long time before rebuilding the
fd set. Whenever we do something that changes the fd set, we should interrupt
the IO thread.
Signed-off-by: Anthony Liguori <[EMAIL PROTECTED]>
diff --git a/qemu/vl.c b/qemu/vl.c
index 1192759..e9f0ca4 100644
--- a/qemu/vl.c
+++ b/qemu/vl.c
@@ -260,6 +260,16 @@ static int event_pending = 1;
#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
+/* KVM runs the main loop in a separate thread. If we update one of the lists
+ * that are polled before or after select(), we need to make sure to break out
+ * of the select() to ensure the new item is serviced.
+ */
+static void main_loop_break(void)
+{
+ if (kvm_enabled())
+ qemu_kvm_notify_work();
+}
+
void decorate_application_name(char *appname, int max_len)
{
if (kvm_enabled())
@@ -5680,6 +5690,7 @@ int qemu_set_fd_handler2(int fd,
ioh->opaque = opaque;
ioh->deleted = 0;
}
+ main_loop_break();
return 0;
}
@@ -7606,8 +7617,7 @@ void qemu_bh_schedule(QEMUBH *bh)
if (env) {
cpu_interrupt(env, CPU_INTERRUPT_EXIT);
}
- if (kvm_enabled())
- qemu_kvm_notify_work();
+ main_loop_break();
}
void qemu_bh_cancel(QEMUBH *bh)
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