94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
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/*
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* QEMU simulated pvpanic device.
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*
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* Copyright Fujitsu, Corp. 2013
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*
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* Authors:
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* Wen Congyang <wency@cn.fujitsu.com>
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* Hu Tao <hutao@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu/module.h"
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#include "sysemu/runstate.h"
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#include "hw/nvram/fw_cfg.h"
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#include "hw/qdev-properties.h"
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#include "hw/misc/pvpanic.h"
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#include "qom/object.h"
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#include "hw/isa/isa.h"
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OBJECT_DECLARE_SIMPLE_TYPE(PVPanicISAState, PVPANIC_ISA_DEVICE)
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/*
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* PVPanicISAState for ISA device and
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* use ioport.
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*/
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struct PVPanicISAState {
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ISADevice parent_obj;
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uint16_t ioport;
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PVPanicState pvpanic;
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};
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static void pvpanic_isa_initfn(Object *obj)
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{
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PVPanicISAState *s = PVPANIC_ISA_DEVICE(obj);
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pvpanic_setup_io(&s->pvpanic, DEVICE(s), 1);
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}
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static void pvpanic_isa_realizefn(DeviceState *dev, Error **errp)
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{
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ISADevice *d = ISA_DEVICE(dev);
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PVPanicISAState *s = PVPANIC_ISA_DEVICE(dev);
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PVPanicState *ps = &s->pvpanic;
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FWCfgState *fw_cfg = fw_cfg_find();
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uint16_t *pvpanic_port;
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if (!fw_cfg) {
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return;
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}
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pvpanic_port = g_malloc(sizeof(*pvpanic_port));
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*pvpanic_port = cpu_to_le16(s->ioport);
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fw_cfg_add_file(fw_cfg, "etc/pvpanic-port", pvpanic_port,
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sizeof(*pvpanic_port));
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isa_register_ioport(d, &ps->mr, s->ioport);
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}
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static Property pvpanic_isa_properties[] = {
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DEFINE_PROP_UINT16(PVPANIC_IOPORT_PROP, PVPanicISAState, ioport, 0x505),
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DEFINE_PROP_UINT8("events", PVPanicISAState, pvpanic.events, PVPANIC_PANICKED | PVPANIC_CRASHLOADED),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void pvpanic_isa_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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dc->realize = pvpanic_isa_realizefn;
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device_class_set_props(dc, pvpanic_isa_properties);
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set_bit(DEVICE_CATEGORY_MISC, dc->categories);
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}
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static TypeInfo pvpanic_isa_info = {
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.name = TYPE_PVPANIC_ISA_DEVICE,
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.parent = TYPE_ISA_DEVICE,
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.instance_size = sizeof(PVPanicISAState),
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.instance_init = pvpanic_isa_initfn,
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.class_init = pvpanic_isa_class_init,
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};
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static void pvpanic_register_types(void)
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{
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type_register_static(&pvpanic_isa_info);
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}
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type_init(pvpanic_register_types)
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