1 /* 2 * QEMU simulated pvpanic device. 3 * 4 * Copyright Fujitsu, Corp. 2013 5 * 6 * Authors: 7 * Wen Congyang <wency@cn.fujitsu.com> 8 * Hu Tao <hutao@cn.fujitsu.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 * 13 */ 14 15 #include "qemu/osdep.h" 16 #include "qemu/log.h" 17 #include "qemu/module.h" 18 #include "sysemu/runstate.h" 19 20 #include "hw/nvram/fw_cfg.h" 21 #include "hw/qdev-properties.h" 22 #include "hw/misc/pvpanic.h" 23 #include "qom/object.h" 24 #include "hw/isa/isa.h" 25 26 OBJECT_DECLARE_SIMPLE_TYPE(PVPanicISAState, PVPANIC_ISA_DEVICE) 27 28 /* 29 * PVPanicISAState for ISA device and 30 * use ioport. 31 */ 32 struct PVPanicISAState { 33 ISADevice parent_obj; 34 35 uint16_t ioport; 36 PVPanicState pvpanic; 37 }; 38 39 static void pvpanic_isa_initfn(Object *obj) 40 { 41 PVPanicISAState *s = PVPANIC_ISA_DEVICE(obj); 42 43 pvpanic_setup_io(&s->pvpanic, DEVICE(s), 1); 44 } 45 46 static void pvpanic_isa_realizefn(DeviceState *dev, Error **errp) 47 { 48 ISADevice *d = ISA_DEVICE(dev); 49 PVPanicISAState *s = PVPANIC_ISA_DEVICE(dev); 50 PVPanicState *ps = &s->pvpanic; 51 FWCfgState *fw_cfg = fw_cfg_find(); 52 uint16_t *pvpanic_port; 53 54 if (!fw_cfg) { 55 return; 56 } 57 58 pvpanic_port = g_malloc(sizeof(*pvpanic_port)); 59 *pvpanic_port = cpu_to_le16(s->ioport); 60 fw_cfg_add_file(fw_cfg, "etc/pvpanic-port", pvpanic_port, 61 sizeof(*pvpanic_port)); 62 63 isa_register_ioport(d, &ps->mr, s->ioport); 64 } 65 66 static Property pvpanic_isa_properties[] = { 67 DEFINE_PROP_UINT16(PVPANIC_IOPORT_PROP, PVPanicISAState, ioport, 0x505), 68 DEFINE_PROP_UINT8("events", PVPanicISAState, pvpanic.events, PVPANIC_PANICKED | PVPANIC_CRASHLOADED), 69 DEFINE_PROP_END_OF_LIST(), 70 }; 71 72 static void pvpanic_isa_class_init(ObjectClass *klass, void *data) 73 { 74 DeviceClass *dc = DEVICE_CLASS(klass); 75 76 dc->realize = pvpanic_isa_realizefn; 77 device_class_set_props(dc, pvpanic_isa_properties); 78 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 79 } 80 81 static TypeInfo pvpanic_isa_info = { 82 .name = TYPE_PVPANIC_ISA_DEVICE, 83 .parent = TYPE_ISA_DEVICE, 84 .instance_size = sizeof(PVPanicISAState), 85 .instance_init = pvpanic_isa_initfn, 86 .class_init = pvpanic_isa_class_init, 87 }; 88 89 static void pvpanic_register_types(void) 90 { 91 type_register_static(&pvpanic_isa_info); 92 } 93 94 type_init(pvpanic_register_types) 95