[Qemu-devel] [PATCH 4/5] qom-cpu: during cpu reset, it will reset its child

[Liu Ping Fan <qemulist@gmail.com>]

This will give the embeded logic module, such as apic has the
opportunity to reset.

Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
---
 qom/cpu.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/qom/cpu.c b/qom/cpu.c
index 5b36046..6aea8e6 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -20,10 +20,26 @@
 
 #include "qemu/cpu.h"
 #include "qemu-common.h"
+#include "hw/qdev.h"
+
+static int cpu_reset_kid(Object *child, void *opaque)
+{
+    if (object_is_type_str(child, TYPE_DEVICE)) {
+        device_reset(DEVICE(child));
+    } else if (object_is_type_str(child, TYPE_BUS)) {
+        bus_reset(BUS(child));
+    } else {
+        printf("cpu's child must be DEVICE or BUS");
+        abort();
+    }
+    return 0;
+}
 
 void cpu_reset(CPUState *cpu)
 {
     CPUClass *klass = CPU_GET_CLASS(cpu);
+    Object *obj = OBJECT(cpu);
+    object_child_foreach(obj, cpu_reset_kid, NULL);
 
     if (klass->reset != NULL) {
         (*klass->reset)(cpu);
-- 
1.7.4.4