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[Qemu-devel] [PATCH 2/8] qdev: add realized property and make adding chi
From: |
Amit Shah |
Subject: |
[Qemu-devel] [PATCH 2/8] qdev: add realized property and make adding child bus implied by realize |
Date: |
Fri, 26 Oct 2012 16:31:38 +0530 |
From: Anthony Liguori <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
---
hw/qdev.c | 36 +++++++++++++++++++++++++++++++++++-
1 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/hw/qdev.c b/hw/qdev.c
index 9b9aba3..5e34c22 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -95,7 +95,6 @@ static void bus_add_child(BusState *bus, DeviceState *child)
void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
{
dev->parent_bus = bus;
- bus_add_child(bus, dev);
}
/* Create a new device. This only initializes the device state structure
@@ -151,6 +150,10 @@ int qdev_init(DeviceState *dev)
assert(dev->state == DEV_STATE_CREATED);
+ if (dev->parent_bus) {
+ bus_add_child(dev->parent_bus, dev);
+ }
+
rc = dc->init(dev);
if (rc < 0) {
qdev_free(dev);
@@ -654,6 +657,33 @@ void qdev_property_add_static(DeviceState *dev, Property
*prop,
assert_no_error(local_err);
}
+static bool qdev_prop_get_realized(Object *obj, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+
+ return (dev->state == DEV_STATE_INITIALIZED);
+}
+
+static void qdev_prop_set_realized(Object *obj, bool value, Error **errp)
+{
+ DeviceState *dev = DEVICE(obj);
+ bool realized = (dev->state == DEV_STATE_INITIALIZED);
+
+ if (realized == value) {
+ return;
+ }
+
+ if (realized && !value) {
+ error_set(errp, QERR_PERMISSION_DENIED);
+ return;
+ }
+
+ if (qdev_init(dev) < 0) {
+ error_set(errp, QERR_DEVICE_INIT_FAILED, "");
+ return;
+ }
+}
+
static void device_initfn(Object *obj)
{
DeviceState *dev = DEVICE(obj);
@@ -678,6 +708,10 @@ static void device_initfn(Object *obj)
} while (class != object_class_by_name(TYPE_DEVICE));
qdev_prop_set_globals(dev);
+ object_property_add_bool(obj, "realized",
+ qdev_prop_get_realized, qdev_prop_set_realized,
+ NULL);
+
object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS,
(Object **)&dev->parent_bus, NULL);
}
--
1.7.7.6
- [Qemu-devel] [PATCH 0/8] virtio-rng: hardware random number generator device, Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 1/8] object: add object_property_add_bool (v2), Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 2/8] qdev: add realized property and make adding child bus implied by realize,
Amit Shah <=
- [Qemu-devel] [PATCH 3/8] vl: add -object option to create QOM objects from the command line, Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 4/8] vl: add -late-object to create QOM objects after machine init, Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 5/8] rng: add RndBackend abstract object class, Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 6/8] rng-urandom: add an RNG backend that uses /dev/urandom, Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 7/8] rng-egd: introduce EGD compliant RNG backend, Amit Shah, 2012/10/26
- [Qemu-devel] [PATCH 8/8] virtio-rng: hardware random number generator device, Amit Shah, 2012/10/26
- Re: [Qemu-devel] [PATCH 0/8] virtio-rng: hardware random number generator device, Paolo Bonzini, 2012/10/26