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 void machine_run_board_init(MachineState *machine); 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 void machine_register_compat_props(MachineState *machine); 45 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine); 46 void machine_set_cpu_numa_node(MachineState *machine, 47 const CpuInstanceProperties *props, 48 Error **errp); 49 50 /** 51 * CPUArchId: 52 * @arch_id - architecture-dependent CPU ID of present or possible CPU 53 * @cpu - pointer to corresponding CPU object if it's present on NULL otherwise 54 * @props - CPU object properties, initialized by board 55 * #vcpus_count - number of threads provided by @cpu object 56 */ 57 typedef struct { 58 uint64_t arch_id; 59 int64_t vcpus_count; 60 CpuInstanceProperties props; 61 Object *cpu; 62 } CPUArchId; 63 64 /** 65 * CPUArchIdList: 66 * @len - number of @CPUArchId items in @cpus array 67 * @cpus - array of present or possible CPUs for current machine configuration 68 */ 69 typedef struct { 70 int len; 71 CPUArchId cpus[0]; 72 } CPUArchIdList; 73 74 /** 75 * MachineClass: 76 * @get_hotplug_handler: this function is called during bus-less 77 * device hotplug. If defined it returns pointer to an instance 78 * of HotplugHandler object, which handles hotplug operation 79 * for a given @dev. It may return NULL if @dev doesn't require 80 * any actions to be performed by hotplug handler. 81 * @cpu_index_to_instance_props: 82 * used to provide @cpu_index to socket/core/thread number mapping, allowing 83 * legacy code to perform maping from cpu_index to topology properties 84 * Returns: tuple of socket/core/thread ids given cpu_index belongs to. 85 * used to provide @cpu_index to socket number mapping, allowing 86 * a machine to group CPU threads belonging to the same socket/package 87 * Returns: socket number given cpu_index belongs to. 88 * @hw_version: 89 * Value of QEMU_VERSION when the machine was added to QEMU. 90 * Set only by old machines because they need to keep 91 * compatibility on code that exposed QEMU_VERSION to guests in 92 * the past (and now use qemu_hw_version()). 93 * @possible_cpu_arch_ids: 94 * Returns an array of @CPUArchId architecture-dependent CPU IDs 95 * which includes CPU IDs for present and possible to hotplug CPUs. 96 * Caller is responsible for freeing returned list. 97 * @has_hotpluggable_cpus: 98 * If true, board supports CPUs creation with -device/device_add. 99 * @minimum_page_bits: 100 * If non-zero, the board promises never to create a CPU with a page size 101 * smaller than this, so QEMU can use a more efficient larger page 102 * size than the target architecture's minimum. (Attempting to create 103 * such a CPU will fail.) Note that changing this is a migration 104 * compatibility break for the machine. 105 */ 106 struct MachineClass { 107 /*< private >*/ 108 ObjectClass parent_class; 109 /*< public >*/ 110 111 const char *family; /* NULL iff @name identifies a standalone machtype */ 112 char *name; 113 const char *alias; 114 const char *desc; 115 116 void (*init)(MachineState *state); 117 void (*reset)(void); 118 void (*hot_add_cpu)(const int64_t id, Error **errp); 119 int (*kvm_type)(const char *arg); 120 121 BlockInterfaceType block_default_type; 122 int units_per_default_bus; 123 int max_cpus; 124 unsigned int no_serial:1, 125 no_parallel:1, 126 use_virtcon:1, 127 use_sclp:1, 128 no_floppy:1, 129 no_cdrom:1, 130 no_sdcard:1, 131 has_dynamic_sysbus:1, 132 pci_allow_0_address:1, 133 legacy_fw_cfg_order:1; 134 int is_default; 135 const char *default_machine_opts; 136 const char *default_boot_order; 137 const char *default_display; 138 GArray *compat_props; 139 const char *hw_version; 140 ram_addr_t default_ram_size; 141 bool option_rom_has_mr; 142 bool rom_file_has_mr; 143 int minimum_page_bits; 144 bool has_hotpluggable_cpus; 145 int numa_mem_align_shift; 146 void (*numa_auto_assign_ram)(MachineClass *mc, NodeInfo *nodes, 147 int nb_nodes, ram_addr_t size); 148 149 HotplugHandler *(*get_hotplug_handler)(MachineState *machine, 150 DeviceState *dev); 151 CpuInstanceProperties (*cpu_index_to_instance_props)(MachineState *machine, 152 unsigned cpu_index); 153 const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); 154 }; 155 156 /** 157 * MachineState: 158 */ 159 struct MachineState { 160 /*< private >*/ 161 Object parent_obj; 162 Notifier sysbus_notifier; 163 164 /*< public >*/ 165 166 char *accel; 167 bool kernel_irqchip_allowed; 168 bool kernel_irqchip_required; 169 bool kernel_irqchip_split; 170 int kvm_shadow_mem; 171 char *dtb; 172 char *dumpdtb; 173 int phandle_start; 174 char *dt_compatible; 175 bool dump_guest_core; 176 bool mem_merge; 177 bool usb; 178 bool usb_disabled; 179 bool igd_gfx_passthru; 180 char *firmware; 181 bool iommu; 182 bool suppress_vmdesc; 183 bool enforce_config_section; 184 bool enable_graphics; 185 186 ram_addr_t ram_size; 187 ram_addr_t maxram_size; 188 uint64_t ram_slots; 189 const char *boot_order; 190 char *kernel_filename; 191 char *kernel_cmdline; 192 char *initrd_filename; 193 const char *cpu_model; 194 AccelState *accelerator; 195 CPUArchIdList *possible_cpus; 196 }; 197 198 #define DEFINE_MACHINE(namestr, machine_initfn) \ 199 static void machine_initfn##_class_init(ObjectClass *oc, void *data) \ 200 { \ 201 MachineClass *mc = MACHINE_CLASS(oc); \ 202 machine_initfn(mc); \ 203 } \ 204 static const TypeInfo machine_initfn##_typeinfo = { \ 205 .name = MACHINE_TYPE_NAME(namestr), \ 206 .parent = TYPE_MACHINE, \ 207 .class_init = machine_initfn##_class_init, \ 208 }; \ 209 static void machine_initfn##_register_types(void) \ 210 { \ 211 type_register_static(&machine_initfn##_typeinfo); \ 212 } \ 213 type_init(machine_initfn##_register_types) 214 215 #define SET_MACHINE_COMPAT(m, COMPAT) \ 216 do { \ 217 int i; \ 218 static GlobalProperty props[] = { \ 219 COMPAT \ 220 { /* end of list */ } \ 221 }; \ 222 if (!m->compat_props) { \ 223 m->compat_props = g_array_new(false, false, sizeof(void *)); \ 224 } \ 225 for (i = 0; props[i].driver != NULL; i++) { \ 226 GlobalProperty *prop = &props[i]; \ 227 g_array_append_val(m->compat_props, prop); \ 228 } \ 229 } while (0) 230 231 #endif 232