include/hw/boards.h

   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 #define SET_MACHINE_COMPAT(m, COMPAT) \
 161     do {                              \
 162         static GlobalProperty props[] = {       \
 163             COMPAT                              \
 164             { /* end of list */ }               \
 165         };                                      \
 166         (m)->compat_props = props;              \
 167     } while (0)
 168
 169 #endif