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qdev: hotplug for bus-less devices
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1 /* Declarations for use by board files for creating devices. */
2
3 #ifndef HW_BOARDS_H
4 #define HW_BOARDS_H
5
6 #include "qemu/typedefs.h"
7 #include "sysemu/blockdev.h"
8 #include "hw/qdev.h"
9 #include "qom/object.h"
10
11
12 typedef struct MachineState MachineState;
13
14 typedef void QEMUMachineInitFunc(MachineState *ms);
15
16 typedef void QEMUMachineResetFunc(void);
17
18 typedef void QEMUMachineHotAddCPUFunc(const int64_t id, Error **errp);
19
20 typedef int QEMUMachineGetKvmtypeFunc(const char *arg);
21
22 struct QEMUMachine {
23 const char *name;
24 const char *alias;
25 const char *desc;
26 QEMUMachineInitFunc *init;
27 QEMUMachineResetFunc *reset;
28 QEMUMachineHotAddCPUFunc *hot_add_cpu;
29 QEMUMachineGetKvmtypeFunc *kvm_type;
30 BlockInterfaceType block_default_type;
31 int max_cpus;
32 unsigned int no_serial:1,
33 no_parallel:1,
34 use_virtcon:1,
35 use_sclp:1,
36 no_floppy:1,
37 no_cdrom:1,
38 no_sdcard:1;
39 int is_default;
40 const char *default_machine_opts;
41 const char *default_boot_order;
42 GlobalProperty *compat_props;
43 const char *hw_version;
44 };
45
46 #define TYPE_MACHINE_SUFFIX "-machine"
47 int qemu_register_machine(QEMUMachine *m);
48
49 #define TYPE_MACHINE "machine"
50 #undef MACHINE /* BSD defines it and QEMU does not use it */
51 #define MACHINE(obj) \
52 OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE)
53 #define MACHINE_GET_CLASS(obj) \
54 OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE)
55 #define MACHINE_CLASS(klass) \
56 OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE)
57
58 MachineClass *find_default_machine(void);
59 extern MachineState *current_machine;
60
61 /**
62 * MachineClass:
63 * @qemu_machine: #QEMUMachine
64 * @get_hotplug_handler: this function is called during bus-less
65 * device hotplug. If defined it returns pointer to an instance
66 * of HotplugHandler object, which handles hotplug operation
67 * for a given @dev. It may return NULL if @dev doesn't require
68 * any actions to be performed by hotplug handler.
69 */
70 struct MachineClass {
71 /*< private >*/
72 ObjectClass parent_class;
73 /*< public >*/
74
75 const char *name;
76 const char *alias;
77 const char *desc;
78
79 void (*init)(MachineState *state);
80 void (*reset)(void);
81 void (*hot_add_cpu)(const int64_t id, Error **errp);
82 int (*kvm_type)(const char *arg);
83
84 BlockInterfaceType block_default_type;
85 int max_cpus;
86 unsigned int no_serial:1,
87 no_parallel:1,
88 use_virtcon:1,
89 use_sclp:1,
90 no_floppy:1,
91 no_cdrom:1,
92 no_sdcard:1;
93 int is_default;
94 const char *default_machine_opts;
95 const char *default_boot_order;
96 GlobalProperty *compat_props;
97 const char *hw_version;
98
99 HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
100 DeviceState *dev);
101 };
102
103 /**
104 * MachineState:
105 */
106 struct MachineState {
107 /*< private >*/
108 Object parent_obj;
109 /*< public >*/
110
111 char *accel;
112 bool kernel_irqchip;
113 int kvm_shadow_mem;
114 char *dtb;
115 char *dumpdtb;
116 int phandle_start;
117 char *dt_compatible;
118 bool dump_guest_core;
119 bool mem_merge;
120 bool usb;
121 char *firmware;
122
123 ram_addr_t ram_size;
124 ram_addr_t maxram_size;
125 uint64_t ram_slots;
126 const char *boot_order;
127 char *kernel_filename;
128 char *kernel_cmdline;
129 char *initrd_filename;
130 const char *cpu_model;
131 };
132
133 #endif