1 /* Declarations for use by board files for creating devices. */ 2 3 #ifndef HW_BOARDS_H 4 #define HW_BOARDS_H 5 6 #include "sysemu/blockdev.h" 7 #include "sysemu/accel.h" 8 #include "hw/qdev.h" 9 #include "qom/object.h" 10 #include "qom/cpu.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 void machine_register_compat_props(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 * @query_hotpluggable_cpus: 86 * Returns a @HotpluggableCPUList, which describes CPUs objects which 87 * could be added with -device/device_add. 88 * Caller is responsible for freeing returned list. 89 * @minimum_page_bits: 90 * If non-zero, the board promises never to create a CPU with a page size 91 * smaller than this, so QEMU can use a more efficient larger page 92 * size than the target architecture's minimum. (Attempting to create 93 * such a CPU will fail.) Note that changing this is a migration 94 * compatibility break for the machine. 95 */ 96 struct MachineClass { 97 /*< private >*/ 98 ObjectClass parent_class; 99 /*< public >*/ 100 101 const char *family; /* NULL iff @name identifies a standalone machtype */ 102 char *name; 103 const char *alias; 104 const char *desc; 105 106 void (*init)(MachineState *state); 107 void (*reset)(void); 108 void (*hot_add_cpu)(const int64_t id, Error **errp); 109 int (*kvm_type)(const char *arg); 110 111 BlockInterfaceType block_default_type; 112 int units_per_default_bus; 113 int max_cpus; 114 unsigned int no_serial:1, 115 no_parallel:1, 116 use_virtcon:1, 117 use_sclp:1, 118 no_floppy:1, 119 no_cdrom:1, 120 no_sdcard:1, 121 has_dynamic_sysbus:1, 122 pci_allow_0_address:1, 123 legacy_fw_cfg_order:1; 124 int is_default; 125 const char *default_machine_opts; 126 const char *default_boot_order; 127 const char *default_display; 128 GArray *compat_props; 129 const char *hw_version; 130 ram_addr_t default_ram_size; 131 bool option_rom_has_mr; 132 bool rom_file_has_mr; 133 int minimum_page_bits; 134 135 HotplugHandler *(*get_hotplug_handler)(MachineState *machine, 136 DeviceState *dev); 137 unsigned (*cpu_index_to_socket_id)(unsigned cpu_index); 138 CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); 139 HotpluggableCPUList *(*query_hotpluggable_cpus)(MachineState *machine); 140 }; 141 142 /** 143 * MachineState: 144 */ 145 struct MachineState { 146 /*< private >*/ 147 Object parent_obj; 148 Notifier sysbus_notifier; 149 150 /*< public >*/ 151 152 char *accel; 153 bool kernel_irqchip_allowed; 154 bool kernel_irqchip_required; 155 bool kernel_irqchip_split; 156 int kvm_shadow_mem; 157 char *dtb; 158 char *dumpdtb; 159 int phandle_start; 160 char *dt_compatible; 161 bool dump_guest_core; 162 bool mem_merge; 163 bool usb; 164 bool usb_disabled; 165 bool igd_gfx_passthru; 166 char *firmware; 167 bool iommu; 168 bool suppress_vmdesc; 169 bool enforce_config_section; 170 bool enable_graphics; 171 172 ram_addr_t ram_size; 173 ram_addr_t maxram_size; 174 uint64_t ram_slots; 175 const char *boot_order; 176 char *kernel_filename; 177 char *kernel_cmdline; 178 char *initrd_filename; 179 const char *cpu_model; 180 AccelState *accelerator; 181 }; 182 183 #define DEFINE_MACHINE(namestr, machine_initfn) \ 184 static void machine_initfn##_class_init(ObjectClass *oc, void *data) \ 185 { \ 186 MachineClass *mc = MACHINE_CLASS(oc); \ 187 machine_initfn(mc); \ 188 } \ 189 static const TypeInfo machine_initfn##_typeinfo = { \ 190 .name = MACHINE_TYPE_NAME(namestr), \ 191 .parent = TYPE_MACHINE, \ 192 .class_init = machine_initfn##_class_init, \ 193 }; \ 194 static void machine_initfn##_register_types(void) \ 195 { \ 196 type_register_static(&machine_initfn##_typeinfo); \ 197 } \ 198 type_init(machine_initfn##_register_types) 199 200 #define SET_MACHINE_COMPAT(m, COMPAT) \ 201 do { \ 202 int i; \ 203 static GlobalProperty props[] = { \ 204 COMPAT \ 205 { /* end of list */ } \ 206 }; \ 207 if (!m->compat_props) { \ 208 m->compat_props = g_array_new(false, false, sizeof(void *)); \ 209 } \ 210 for (i = 0; props[i].driver != NULL; i++) { \ 211 GlobalProperty *prop = &props[i]; \ 212 g_array_append_val(m->compat_props, prop); \ 213 } \ 214 } while (0) 215 216 #endif 217