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 #include "qom/cpu.h" 12 13 void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner, 14 const char *name, 15 uint64_t ram_size); 16 17 #define TYPE_MACHINE_SUFFIX "-machine" 18 19 /* Machine class name that needs to be used for class-name-based machine 20 * type lookup to work. 21 */ 22 #define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX) 23 24 #define TYPE_MACHINE "machine" 25 #undef MACHINE /* BSD defines it and QEMU does not use it */ 26 #define MACHINE(obj) \ 27 OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE) 28 #define MACHINE_GET_CLASS(obj) \ 29 OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE) 30 #define MACHINE_CLASS(klass) \ 31 OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE) 32 33 MachineClass *find_default_machine(void); 34 extern MachineState *current_machine; 35 36 bool machine_usb(MachineState *machine); 37 bool machine_kernel_irqchip_allowed(MachineState *machine); 38 bool machine_kernel_irqchip_required(MachineState *machine); 39 bool machine_kernel_irqchip_split(MachineState *machine); 40 int machine_kvm_shadow_mem(MachineState *machine); 41 int machine_phandle_start(MachineState *machine); 42 bool machine_dump_guest_core(MachineState *machine); 43 bool machine_mem_merge(MachineState *machine); 44 45 /** 46 * CPUArchId: 47 * @arch_id - architecture-dependent CPU ID of present or possible CPU 48 * @cpu - pointer to corresponding CPU object if it's present on NULL otherwise 49 */ 50 typedef struct { 51 uint64_t arch_id; 52 struct CPUState *cpu; 53 } CPUArchId; 54 55 /** 56 * CPUArchIdList: 57 * @len - number of @CPUArchId items in @cpus array 58 * @cpus - array of present or possible CPUs for current machine configuration 59 */ 60 typedef struct { 61 int len; 62 CPUArchId cpus[0]; 63 } CPUArchIdList; 64 65 /** 66 * MachineClass: 67 * @get_hotplug_handler: this function is called during bus-less 68 * device hotplug. If defined it returns pointer to an instance 69 * of HotplugHandler object, which handles hotplug operation 70 * for a given @dev. It may return NULL if @dev doesn't require 71 * any actions to be performed by hotplug handler. 72 * @cpu_index_to_socket_id: 73 * used to provide @cpu_index to socket number mapping, allowing 74 * a machine to group CPU threads belonging to the same socket/package 75 * Returns: socket number given cpu_index belongs to. 76 * @hw_version: 77 * Value of QEMU_VERSION when the machine was added to QEMU. 78 * Set only by old machines because they need to keep 79 * compatibility on code that exposed QEMU_VERSION to guests in 80 * the past (and now use qemu_hw_version()). 81 * @possible_cpu_arch_ids: 82 * Returns an array of @CPUArchId architecture-dependent CPU IDs 83 * which includes CPU IDs for present and possible to hotplug CPUs. 84 * Caller is responsible for freeing returned list. 85 */ 86 struct MachineClass { 87 /*< private >*/ 88 ObjectClass parent_class; 89 /*< public >*/ 90 91 const char *family; /* NULL iff @name identifies a standalone machtype */ 92 const char *name; 93 const char *alias; 94 const char *desc; 95 96 void (*init)(MachineState *state); 97 void (*reset)(void); 98 void (*hot_add_cpu)(const int64_t id, Error **errp); 99 int (*kvm_type)(const char *arg); 100 101 BlockInterfaceType block_default_type; 102 int units_per_default_bus; 103 int max_cpus; 104 unsigned int no_serial:1, 105 no_parallel:1, 106 use_virtcon:1, 107 use_sclp:1, 108 no_floppy:1, 109 no_cdrom:1, 110 no_sdcard:1, 111 has_dynamic_sysbus:1, 112 pci_allow_0_address:1; 113 int is_default; 114 const char *default_machine_opts; 115 const char *default_boot_order; 116 const char *default_display; 117 GlobalProperty *compat_props; 118 const char *hw_version; 119 ram_addr_t default_ram_size; 120 bool option_rom_has_mr; 121 bool rom_file_has_mr; 122 123 HotplugHandler *(*get_hotplug_handler)(MachineState *machine, 124 DeviceState *dev); 125 unsigned (*cpu_index_to_socket_id)(unsigned cpu_index); 126 CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); 127 }; 128 129 /** 130 * MachineState: 131 */ 132 struct MachineState { 133 /*< private >*/ 134 Object parent_obj; 135 Notifier sysbus_notifier; 136 137 /*< public >*/ 138 139 char *accel; 140 bool kernel_irqchip_allowed; 141 bool kernel_irqchip_required; 142 bool kernel_irqchip_split; 143 int kvm_shadow_mem; 144 char *dtb; 145 char *dumpdtb; 146 int phandle_start; 147 char *dt_compatible; 148 bool dump_guest_core; 149 bool mem_merge; 150 bool usb; 151 bool usb_disabled; 152 bool igd_gfx_passthru; 153 char *firmware; 154 bool iommu; 155 bool suppress_vmdesc; 156 bool enforce_config_section; 157 158 ram_addr_t ram_size; 159 ram_addr_t maxram_size; 160 uint64_t ram_slots; 161 const char *boot_order; 162 char *kernel_filename; 163 char *kernel_cmdline; 164 char *initrd_filename; 165 const char *cpu_model; 166 AccelState *accelerator; 167 }; 168 169 #define DEFINE_MACHINE(namestr, machine_initfn) \ 170 static void machine_initfn##_class_init(ObjectClass *oc, void *data) \ 171 { \ 172 MachineClass *mc = MACHINE_CLASS(oc); \ 173 machine_initfn(mc); \ 174 } \ 175 static const TypeInfo machine_initfn##_typeinfo = { \ 176 .name = MACHINE_TYPE_NAME(namestr), \ 177 .parent = TYPE_MACHINE, \ 178 .class_init = machine_initfn##_class_init, \ 179 }; \ 180 static void machine_initfn##_register_types(void) \ 181 { \ 182 type_register_static(&machine_initfn##_typeinfo); \ 183 } \ 184 type_init(machine_initfn##_register_types) 185 186 #define SET_MACHINE_COMPAT(m, COMPAT) \ 187 do { \ 188 static GlobalProperty props[] = { \ 189 COMPAT \ 190 { /* end of list */ } \ 191 }; \ 192 (m)->compat_props = props; \ 193 } while (0) 194 195 #endif 196