mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-11 05:23:58 +00:00
0b8fa32f55
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
/*
|
|
* ap bridge
|
|
*
|
|
* Copyright 2018 IBM Corp.
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or (at
|
|
* your option) any later version. See the COPYING file in the top-level
|
|
* directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "hw/sysbus.h"
|
|
#include "qemu/bitops.h"
|
|
#include "qemu/module.h"
|
|
#include "hw/s390x/ap-bridge.h"
|
|
#include "cpu.h"
|
|
|
|
static char *ap_bus_get_dev_path(DeviceState *dev)
|
|
{
|
|
/* at most one */
|
|
return g_strdup_printf("/1");
|
|
}
|
|
|
|
static void ap_bus_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
BusClass *k = BUS_CLASS(oc);
|
|
|
|
k->get_dev_path = ap_bus_get_dev_path;
|
|
/* More than one ap device does not make sense */
|
|
k->max_dev = 1;
|
|
}
|
|
|
|
static const TypeInfo ap_bus_info = {
|
|
.name = TYPE_AP_BUS,
|
|
.parent = TYPE_BUS,
|
|
.instance_size = 0,
|
|
.class_init = ap_bus_class_init,
|
|
};
|
|
|
|
void s390_init_ap(void)
|
|
{
|
|
DeviceState *dev;
|
|
BusState *bus;
|
|
|
|
/* If no AP instructions then no need for AP bridge */
|
|
if (!s390_has_feat(S390_FEAT_AP)) {
|
|
return;
|
|
}
|
|
|
|
/* Create bridge device */
|
|
dev = qdev_create(NULL, TYPE_AP_BRIDGE);
|
|
object_property_add_child(qdev_get_machine(), TYPE_AP_BRIDGE,
|
|
OBJECT(dev), NULL);
|
|
qdev_init_nofail(dev);
|
|
|
|
/* Create bus on bridge device */
|
|
bus = qbus_create(TYPE_AP_BUS, dev, TYPE_AP_BUS);
|
|
|
|
/* Enable hotplugging */
|
|
qbus_set_hotplug_handler(bus, OBJECT(dev), &error_abort);
|
|
}
|
|
|
|
static void ap_bridge_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
|
|
|
|
hc->unplug = qdev_simple_device_unplug_cb;
|
|
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
|
|
}
|
|
|
|
static const TypeInfo ap_bridge_info = {
|
|
.name = TYPE_AP_BRIDGE,
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = 0,
|
|
.class_init = ap_bridge_class_init,
|
|
.interfaces = (InterfaceInfo[]) {
|
|
{ TYPE_HOTPLUG_HANDLER },
|
|
{ }
|
|
}
|
|
};
|
|
|
|
static void ap_register(void)
|
|
{
|
|
type_register_static(&ap_bridge_info);
|
|
type_register_static(&ap_bus_info);
|
|
}
|
|
|
|
type_init(ap_register)
|