xref: /openbmc/qemu/include/hw/boards.h (revision ad30c0b0)
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 "sysemu/accel.h"
9 #include "hw/qdev.h"
10 #include "qom/object.h"
11 
12 void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
13                                           const char *name,
14                                           uint64_t ram_size);
15 
16 #define TYPE_MACHINE_SUFFIX "-machine"
17 
18 /* Machine class name that needs to be used for class-name-based machine
19  * type lookup to work.
20  */
21 #define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX)
22 
23 #define TYPE_MACHINE "machine"
24 #undef MACHINE  /* BSD defines it and QEMU does not use it */
25 #define MACHINE(obj) \
26     OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE)
27 #define MACHINE_GET_CLASS(obj) \
28     OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE)
29 #define MACHINE_CLASS(klass) \
30     OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE)
31 
32 MachineClass *find_default_machine(void);
33 extern MachineState *current_machine;
34 
35 bool machine_usb(MachineState *machine);
36 bool machine_kernel_irqchip_allowed(MachineState *machine);
37 bool machine_kernel_irqchip_required(MachineState *machine);
38 bool machine_kernel_irqchip_split(MachineState *machine);
39 int machine_kvm_shadow_mem(MachineState *machine);
40 int machine_phandle_start(MachineState *machine);
41 bool machine_dump_guest_core(MachineState *machine);
42 bool machine_mem_merge(MachineState *machine);
43 
44 /**
45  * MachineClass:
46  * @get_hotplug_handler: this function is called during bus-less
47  *    device hotplug. If defined it returns pointer to an instance
48  *    of HotplugHandler object, which handles hotplug operation
49  *    for a given @dev. It may return NULL if @dev doesn't require
50  *    any actions to be performed by hotplug handler.
51  * @cpu_index_to_socket_id:
52  *    used to provide @cpu_index to socket number mapping, allowing
53  *    a machine to group CPU threads belonging to the same socket/package
54  *    Returns: socket number given cpu_index belongs to.
55  * @hw_version:
56  *    Value of QEMU_VERSION when the machine was added to QEMU.
57  *    Set only by old machines because they need to keep
58  *    compatibility on code that exposed QEMU_VERSION to guests in
59  *    the past (and now use qemu_hw_version()).
60  */
61 struct MachineClass {
62     /*< private >*/
63     ObjectClass parent_class;
64     /*< public >*/
65 
66     const char *family; /* NULL iff @name identifies a standalone machtype */
67     const char *name;
68     const char *alias;
69     const char *desc;
70 
71     void (*init)(MachineState *state);
72     void (*reset)(void);
73     void (*hot_add_cpu)(const int64_t id, Error **errp);
74     int (*kvm_type)(const char *arg);
75 
76     BlockInterfaceType block_default_type;
77     int units_per_default_bus;
78     int max_cpus;
79     unsigned int no_serial:1,
80         no_parallel:1,
81         use_virtcon:1,
82         use_sclp:1,
83         no_floppy:1,
84         no_cdrom:1,
85         no_sdcard:1,
86         has_dynamic_sysbus:1,
87         no_tco:1,
88         pci_allow_0_address:1;
89     int is_default;
90     const char *default_machine_opts;
91     const char *default_boot_order;
92     const char *default_display;
93     GlobalProperty *compat_props;
94     const char *hw_version;
95     ram_addr_t default_ram_size;
96     bool option_rom_has_mr;
97     bool rom_file_has_mr;
98 
99     HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
100                                            DeviceState *dev);
101     unsigned (*cpu_index_to_socket_id)(unsigned cpu_index);
102 };
103 
104 /**
105  * MachineState:
106  */
107 struct MachineState {
108     /*< private >*/
109     Object parent_obj;
110     Notifier sysbus_notifier;
111 
112     /*< public >*/
113 
114     char *accel;
115     bool kernel_irqchip_allowed;
116     bool kernel_irqchip_required;
117     bool kernel_irqchip_split;
118     int kvm_shadow_mem;
119     char *dtb;
120     char *dumpdtb;
121     int phandle_start;
122     char *dt_compatible;
123     bool dump_guest_core;
124     bool mem_merge;
125     bool usb;
126     bool usb_disabled;
127     bool igd_gfx_passthru;
128     char *firmware;
129     bool iommu;
130     bool suppress_vmdesc;
131 
132     ram_addr_t ram_size;
133     ram_addr_t maxram_size;
134     uint64_t   ram_slots;
135     const char *boot_order;
136     char *kernel_filename;
137     char *kernel_cmdline;
138     char *initrd_filename;
139     const char *cpu_model;
140     AccelState *accelerator;
141 };
142 
143 #define DEFINE_MACHINE(namestr, machine_initfn) \
144     static void machine_initfn##_class_init(ObjectClass *oc, void *data) \
145     { \
146         MachineClass *mc = MACHINE_CLASS(oc); \
147         machine_initfn(mc); \
148     } \
149     static const TypeInfo machine_initfn##_typeinfo = { \
150         .name       = MACHINE_TYPE_NAME(namestr), \
151         .parent     = TYPE_MACHINE, \
152         .class_init = machine_initfn##_class_init, \
153     }; \
154     static void machine_initfn##_register_types(void) \
155     { \
156         type_register_static(&machine_initfn##_typeinfo); \
157     } \
158     machine_init(machine_initfn##_register_types)
159 
160 #endif
161