On Wed, Oct 17, 2012 at 01:08:23PM -0500, Anthony Liguori wrote:
> Eduardo Habkost <ehabk...@redhat.com> writes:
>
> > The reset register/unregister code is specific to qemu-system-*, so
> > isolate it so it can be moved to qdev-system.c.
> >
> > Signed-off-by: Eduardo Habkost <ehabk...@redhat.com>
> > ---
> > hw/qdev-core.c | 24 ++++++++++++++++++------
> > 1 file changed, 18 insertions(+), 6 deletions(-)
> >
> > diff --git a/hw/qdev-core.c b/hw/qdev-core.c
> > index af0af52..a105679 100644
> > --- a/hw/qdev-core.c
> > +++ b/hw/qdev-core.c
> > @@ -47,6 +47,21 @@ void GCC_WEAK qdev_finalize_vmstate(DeviceState *dev)
> > {
> > }
> >
> > +static void qbus_register_reset(BusState *bus)
> > +{
> > + if (bus != sysbus_get_default()) {
> > + /* TODO: once all bus devices are qdevified,
> > + only reset handler for main_system_bus should be registered
> > here. */
> > + qemu_register_reset(qbus_reset_all_fn, bus);
> > + }
> > +}
> > +
> > +static void qbus_unregister_reset(BusState *bus)
> > +{
> > + assert(bus != sysbus_get_default()); /* main_system_bus is never freed
> > */
> > + qemu_unregister_reset(qbus_reset_all_fn, bus);
> > +}
> > +
>
> Again, I'd suggest stubbing out qemu_[un]register_reset instead of
> trying to cope with it's users.
I was going to implement it the way you suggested. But then I noticed
that I _ *-user will need to request the devices to be reset once, too
(even if the only devices available are the CPU objects).
On the next version, I will move the reset-function list from vl.c to
qdev-core.c. Code that uses qdev will need to take care of calling
qemu_devices_reset() eventually (qemu-system does that on vl.c *-user
will need to that somewhere else).
>
> Regards,
>
> Anthony Liguori
>
> > const char *qdev_fw_name(DeviceState *dev)
> > {
> > DeviceClass *dc = DEVICE_GET_CLASS(dev);
> > @@ -355,10 +370,8 @@ static void qbus_realize(BusState *bus)
> > QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling);
> > bus->parent->num_child_bus++;
> > object_property_add_child(OBJECT(bus->parent), bus->name,
> > OBJECT(bus), NULL);
> > - } else if (bus != sysbus_get_default()) {
> > - /* TODO: once all bus devices are qdevified,
> > - only reset handler for main_system_bus should be registered
> > here. */
> > - qemu_register_reset(qbus_reset_all_fn, bus);
> > + } else {
> > + qbus_register_reset(bus);
> > }
> > }
> >
> > @@ -692,8 +705,7 @@ static void qbus_finalize(Object *obj)
> > QLIST_REMOVE(bus, sibling);
> > bus->parent->num_child_bus--;
> > } else {
> > - assert(bus != sysbus_get_default()); /* main_system_bus is never
> > freed */
> > - qemu_unregister_reset(qbus_reset_all_fn, bus);
> > + qbus_unregister_reset(bus);
> > }
> > g_free((char *)bus->name);
> > }
> > --
> > 1.7.11.7
>
--
Eduardo
