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b804e8a62a
The previous patch moved virtual css bridge and bus out from virtio-ccw, but kept the direct reference of virtio-ccw specific unplug function inside css-bridge.c. To make the virtual css bus and bridge useful for non-virtio devices, this introduces a common unplug function pointer "unplug" to call specific virtio-ccw unplug parts. Thus, the tight coupling to virtio-ccw can be removed. This unplug pointer is a member of CCWDeviceClass, which is introduced as an abstract device layer called "ccw-device". This layer is between DeviceState and specific devices which are plugged in virtual css bus, like virtio-ccw device. The specific unplug handlers should be assigned to "unplug" during initialization. Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com> Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com> Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Reviewed-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
28 lines
690 B
C
28 lines
690 B
C
/*
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* Common device infrastructure for devices in the virtual css
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*
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* Copyright 2016 IBM Corp.
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* Author(s): Jing Liu <liujbjl@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#include "qemu/osdep.h"
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#include "ccw-device.h"
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static const TypeInfo ccw_device_info = {
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.name = TYPE_CCW_DEVICE,
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.parent = TYPE_DEVICE,
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.instance_size = sizeof(CcwDevice),
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.class_size = sizeof(CCWDeviceClass),
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.abstract = true,
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};
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static void ccw_device_register(void)
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{
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type_register_static(&ccw_device_info);
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}
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type_init(ccw_device_register)
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