1 /* Declarations for use by board files for creating devices. */ 2 3 #ifndef HW_BOARDS_H 4 #define HW_BOARDS_H 5 6 #include "exec/memory.h" 7 #include "sysemu/hostmem.h" 8 #include "sysemu/blockdev.h" 9 #include "sysemu/accel.h" 10 #include "qapi/qapi-types-machine.h" 11 #include "qemu/module.h" 12 #include "qom/object.h" 13 #include "hw/core/cpu.h" 14 15 #define TYPE_MACHINE_SUFFIX "-machine" 16 17 /* Machine class name that needs to be used for class-name-based machine 18 * type lookup to work. 19 */ 20 #define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX) 21 22 #define TYPE_MACHINE "machine" 23 #undef MACHINE /* BSD defines it and QEMU does not use it */ 24 OBJECT_DECLARE_TYPE(MachineState, MachineClass, MACHINE) 25 26 extern MachineState *current_machine; 27 28 void machine_run_board_init(MachineState *machine); 29 bool machine_usb(MachineState *machine); 30 int machine_phandle_start(MachineState *machine); 31 bool machine_dump_guest_core(MachineState *machine); 32 bool machine_mem_merge(MachineState *machine); 33 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine); 34 void machine_set_cpu_numa_node(MachineState *machine, 35 const CpuInstanceProperties *props, 36 Error **errp); 37 38 void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type); 39 /* 40 * Checks that backend isn't used, preps it for exclusive usage and 41 * returns migratable MemoryRegion provided by backend. 42 */ 43 MemoryRegion *machine_consume_memdev(MachineState *machine, 44 HostMemoryBackend *backend); 45 46 /** 47 * CPUArchId: 48 * @arch_id - architecture-dependent CPU ID of present or possible CPU 49 * @cpu - pointer to corresponding CPU object if it's present on NULL otherwise 50 * @type - QOM class name of possible @cpu object 51 * @props - CPU object properties, initialized by board 52 * #vcpus_count - number of threads provided by @cpu object 53 */ 54 typedef struct CPUArchId { 55 uint64_t arch_id; 56 int64_t vcpus_count; 57 CpuInstanceProperties props; 58 Object *cpu; 59 const char *type; 60 } CPUArchId; 61 62 /** 63 * CPUArchIdList: 64 * @len - number of @CPUArchId items in @cpus array 65 * @cpus - array of present or possible CPUs for current machine configuration 66 */ 67 typedef struct { 68 int len; 69 CPUArchId cpus[]; 70 } CPUArchIdList; 71 72 /** 73 * MachineClass: 74 * @deprecation_reason: If set, the machine is marked as deprecated. The 75 * string should provide some clear information about what to use instead. 76 * @max_cpus: maximum number of CPUs supported. Default: 1 77 * @min_cpus: minimum number of CPUs supported. Default: 1 78 * @default_cpus: number of CPUs instantiated if none are specified. Default: 1 79 * @is_default: 80 * If true QEMU will use this machine by default if no '-M' option is given. 81 * @get_hotplug_handler: this function is called during bus-less 82 * device hotplug. If defined it returns pointer to an instance 83 * of HotplugHandler object, which handles hotplug operation 84 * for a given @dev. It may return NULL if @dev doesn't require 85 * any actions to be performed by hotplug handler. 86 * @cpu_index_to_instance_props: 87 * used to provide @cpu_index to socket/core/thread number mapping, allowing 88 * legacy code to perform maping from cpu_index to topology properties 89 * Returns: tuple of socket/core/thread ids given cpu_index belongs to. 90 * used to provide @cpu_index to socket number mapping, allowing 91 * a machine to group CPU threads belonging to the same socket/package 92 * Returns: socket number given cpu_index belongs to. 93 * @hw_version: 94 * Value of QEMU_VERSION when the machine was added to QEMU. 95 * Set only by old machines because they need to keep 96 * compatibility on code that exposed QEMU_VERSION to guests in 97 * the past (and now use qemu_hw_version()). 98 * @possible_cpu_arch_ids: 99 * Returns an array of @CPUArchId architecture-dependent CPU IDs 100 * which includes CPU IDs for present and possible to hotplug CPUs. 101 * Caller is responsible for freeing returned list. 102 * @get_default_cpu_node_id: 103 * returns default board specific node_id value for CPU slot specified by 104 * index @idx in @ms->possible_cpus[] 105 * @has_hotpluggable_cpus: 106 * If true, board supports CPUs creation with -device/device_add. 107 * @default_cpu_type: 108 * specifies default CPU_TYPE, which will be used for parsing target 109 * specific features and for creating CPUs if CPU name wasn't provided 110 * explicitly at CLI 111 * @minimum_page_bits: 112 * If non-zero, the board promises never to create a CPU with a page size 113 * smaller than this, so QEMU can use a more efficient larger page 114 * size than the target architecture's minimum. (Attempting to create 115 * such a CPU will fail.) Note that changing this is a migration 116 * compatibility break for the machine. 117 * @ignore_memory_transaction_failures: 118 * If this is flag is true then the CPU will ignore memory transaction 119 * failures which should cause the CPU to take an exception due to an 120 * access to an unassigned physical address; the transaction will instead 121 * return zero (for a read) or be ignored (for a write). This should be 122 * set only by legacy board models which rely on the old RAZ/WI behaviour 123 * for handling devices that QEMU does not yet model. New board models 124 * should instead use "unimplemented-device" for all memory ranges where 125 * the guest will attempt to probe for a device that QEMU doesn't 126 * implement and a stub device is required. 127 * @kvm_type: 128 * Return the type of KVM corresponding to the kvm-type string option or 129 * computed based on other criteria such as the host kernel capabilities. 130 * @numa_mem_supported: 131 * true if '--numa node.mem' option is supported and false otherwise 132 * @smp_parse: 133 * The function pointer to hook different machine specific functions for 134 * parsing "smp-opts" from QemuOpts to MachineState::CpuTopology and more 135 * machine specific topology fields, such as smp_dies for PCMachine. 136 * @hotplug_allowed: 137 * If the hook is provided, then it'll be called for each device 138 * hotplug to check whether the device hotplug is allowed. Return 139 * true to grant allowance or false to reject the hotplug. When 140 * false is returned, an error must be set to show the reason of 141 * the rejection. If the hook is not provided, all hotplug will be 142 * allowed. 143 * @default_ram_id: 144 * Specifies inital RAM MemoryRegion name to be used for default backend 145 * creation if user explicitly hasn't specified backend with "memory-backend" 146 * property. 147 * It also will be used as a way to optin into "-m" option support. 148 * If it's not set by board, '-m' will be ignored and generic code will 149 * not create default RAM MemoryRegion. 150 * @fixup_ram_size: 151 * Amends user provided ram size (with -m option) using machine 152 * specific algorithm. To be used by old machine types for compat 153 * purposes only. 154 * Applies only to default memory backend, i.e., explicit memory backend 155 * wasn't used. 156 */ 157 struct MachineClass { 158 /*< private >*/ 159 ObjectClass parent_class; 160 /*< public >*/ 161 162 const char *family; /* NULL iff @name identifies a standalone machtype */ 163 char *name; 164 const char *alias; 165 const char *desc; 166 const char *deprecation_reason; 167 168 void (*init)(MachineState *state); 169 void (*reset)(MachineState *state); 170 void (*wakeup)(MachineState *state); 171 void (*hot_add_cpu)(MachineState *state, const int64_t id, Error **errp); 172 int (*kvm_type)(MachineState *machine, const char *arg); 173 void (*smp_parse)(MachineState *ms, QemuOpts *opts); 174 175 BlockInterfaceType block_default_type; 176 int units_per_default_bus; 177 int max_cpus; 178 int min_cpus; 179 int default_cpus; 180 unsigned int no_serial:1, 181 no_parallel:1, 182 no_floppy:1, 183 no_cdrom:1, 184 no_sdcard:1, 185 pci_allow_0_address:1, 186 legacy_fw_cfg_order:1; 187 bool is_default; 188 const char *default_machine_opts; 189 const char *default_boot_order; 190 const char *default_display; 191 GPtrArray *compat_props; 192 const char *hw_version; 193 ram_addr_t default_ram_size; 194 const char *default_cpu_type; 195 bool default_kernel_irqchip_split; 196 bool option_rom_has_mr; 197 bool rom_file_has_mr; 198 int minimum_page_bits; 199 bool has_hotpluggable_cpus; 200 bool ignore_memory_transaction_failures; 201 int numa_mem_align_shift; 202 const char **valid_cpu_types; 203 strList *allowed_dynamic_sysbus_devices; 204 bool auto_enable_numa_with_memhp; 205 bool auto_enable_numa_with_memdev; 206 void (*numa_auto_assign_ram)(MachineClass *mc, NodeInfo *nodes, 207 int nb_nodes, ram_addr_t size); 208 bool ignore_boot_device_suffixes; 209 bool smbus_no_migration_support; 210 bool nvdimm_supported; 211 bool numa_mem_supported; 212 bool auto_enable_numa; 213 const char *default_ram_id; 214 215 HotplugHandler *(*get_hotplug_handler)(MachineState *machine, 216 DeviceState *dev); 217 bool (*hotplug_allowed)(MachineState *state, DeviceState *dev, 218 Error **errp); 219 CpuInstanceProperties (*cpu_index_to_instance_props)(MachineState *machine, 220 unsigned cpu_index); 221 const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); 222 int64_t (*get_default_cpu_node_id)(const MachineState *ms, int idx); 223 ram_addr_t (*fixup_ram_size)(ram_addr_t size); 224 }; 225 226 /** 227 * DeviceMemoryState: 228 * @base: address in guest physical address space where the memory 229 * address space for memory devices starts 230 * @mr: address space container for memory devices 231 */ 232 typedef struct DeviceMemoryState { 233 hwaddr base; 234 MemoryRegion mr; 235 } DeviceMemoryState; 236 237 /** 238 * CpuTopology: 239 * @cpus: the number of present logical processors on the machine 240 * @cores: the number of cores in one package 241 * @threads: the number of threads in one core 242 * @sockets: the number of sockets on the machine 243 * @max_cpus: the maximum number of logical processors on the machine 244 */ 245 typedef struct CpuTopology { 246 unsigned int cpus; 247 unsigned int cores; 248 unsigned int threads; 249 unsigned int sockets; 250 unsigned int max_cpus; 251 } CpuTopology; 252 253 /** 254 * MachineState: 255 */ 256 struct MachineState { 257 /*< private >*/ 258 Object parent_obj; 259 Notifier sysbus_notifier; 260 261 /*< public >*/ 262 263 char *dtb; 264 char *dumpdtb; 265 int phandle_start; 266 char *dt_compatible; 267 bool dump_guest_core; 268 bool mem_merge; 269 bool usb; 270 bool usb_disabled; 271 char *firmware; 272 bool iommu; 273 bool suppress_vmdesc; 274 bool enforce_config_section; 275 bool enable_graphics; 276 char *memory_encryption; 277 char *ram_memdev_id; 278 /* 279 * convenience alias to ram_memdev_id backend memory region 280 * or to numa container memory region 281 */ 282 MemoryRegion *ram; 283 DeviceMemoryState *device_memory; 284 285 ram_addr_t ram_size; 286 ram_addr_t maxram_size; 287 uint64_t ram_slots; 288 const char *boot_order; 289 char *kernel_filename; 290 char *kernel_cmdline; 291 char *initrd_filename; 292 const char *cpu_type; 293 AccelState *accelerator; 294 CPUArchIdList *possible_cpus; 295 CpuTopology smp; 296 struct NVDIMMState *nvdimms_state; 297 struct NumaState *numa_state; 298 }; 299 300 #define DEFINE_MACHINE(namestr, machine_initfn) \ 301 static void machine_initfn##_class_init(ObjectClass *oc, void *data) \ 302 { \ 303 MachineClass *mc = MACHINE_CLASS(oc); \ 304 machine_initfn(mc); \ 305 } \ 306 static const TypeInfo machine_initfn##_typeinfo = { \ 307 .name = MACHINE_TYPE_NAME(namestr), \ 308 .parent = TYPE_MACHINE, \ 309 .class_init = machine_initfn##_class_init, \ 310 }; \ 311 static void machine_initfn##_register_types(void) \ 312 { \ 313 type_register_static(&machine_initfn##_typeinfo); \ 314 } \ 315 type_init(machine_initfn##_register_types) 316 317 extern GlobalProperty hw_compat_5_1[]; 318 extern const size_t hw_compat_5_1_len; 319 320 extern GlobalProperty hw_compat_5_0[]; 321 extern const size_t hw_compat_5_0_len; 322 323 extern GlobalProperty hw_compat_4_2[]; 324 extern const size_t hw_compat_4_2_len; 325 326 extern GlobalProperty hw_compat_4_1[]; 327 extern const size_t hw_compat_4_1_len; 328 329 extern GlobalProperty hw_compat_4_0[]; 330 extern const size_t hw_compat_4_0_len; 331 332 extern GlobalProperty hw_compat_3_1[]; 333 extern const size_t hw_compat_3_1_len; 334 335 extern GlobalProperty hw_compat_3_0[]; 336 extern const size_t hw_compat_3_0_len; 337 338 extern GlobalProperty hw_compat_2_12[]; 339 extern const size_t hw_compat_2_12_len; 340 341 extern GlobalProperty hw_compat_2_11[]; 342 extern const size_t hw_compat_2_11_len; 343 344 extern GlobalProperty hw_compat_2_10[]; 345 extern const size_t hw_compat_2_10_len; 346 347 extern GlobalProperty hw_compat_2_9[]; 348 extern const size_t hw_compat_2_9_len; 349 350 extern GlobalProperty hw_compat_2_8[]; 351 extern const size_t hw_compat_2_8_len; 352 353 extern GlobalProperty hw_compat_2_7[]; 354 extern const size_t hw_compat_2_7_len; 355 356 extern GlobalProperty hw_compat_2_6[]; 357 extern const size_t hw_compat_2_6_len; 358 359 extern GlobalProperty hw_compat_2_5[]; 360 extern const size_t hw_compat_2_5_len; 361 362 extern GlobalProperty hw_compat_2_4[]; 363 extern const size_t hw_compat_2_4_len; 364 365 extern GlobalProperty hw_compat_2_3[]; 366 extern const size_t hw_compat_2_3_len; 367 368 extern GlobalProperty hw_compat_2_2[]; 369 extern const size_t hw_compat_2_2_len; 370 371 extern GlobalProperty hw_compat_2_1[]; 372 extern const size_t hw_compat_2_1_len; 373 374 #endif 375