1 /* 2 * QEMU Machine 3 * 4 * Copyright (C) 2014 Red Hat Inc 5 * 6 * Authors: 7 * Marcel Apfelbaum <marcel.a@redhat.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 #include "hw/boards.h" 14 #include "qapi/visitor.h" 15 #include "hw/sysbus.h" 16 #include "sysemu/sysemu.h" 17 #include "qemu/error-report.h" 18 19 static char *machine_get_accel(Object *obj, Error **errp) 20 { 21 MachineState *ms = MACHINE(obj); 22 23 return g_strdup(ms->accel); 24 } 25 26 static void machine_set_accel(Object *obj, const char *value, Error **errp) 27 { 28 MachineState *ms = MACHINE(obj); 29 30 g_free(ms->accel); 31 ms->accel = g_strdup(value); 32 } 33 34 static void machine_set_kernel_irqchip(Object *obj, bool value, Error **errp) 35 { 36 MachineState *ms = MACHINE(obj); 37 38 ms->kernel_irqchip_allowed = value; 39 ms->kernel_irqchip_required = value; 40 } 41 42 static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v, 43 void *opaque, const char *name, 44 Error **errp) 45 { 46 MachineState *ms = MACHINE(obj); 47 int64_t value = ms->kvm_shadow_mem; 48 49 visit_type_int(v, &value, name, errp); 50 } 51 52 static void machine_set_kvm_shadow_mem(Object *obj, Visitor *v, 53 void *opaque, const char *name, 54 Error **errp) 55 { 56 MachineState *ms = MACHINE(obj); 57 Error *error = NULL; 58 int64_t value; 59 60 visit_type_int(v, &value, name, &error); 61 if (error) { 62 error_propagate(errp, error); 63 return; 64 } 65 66 ms->kvm_shadow_mem = value; 67 } 68 69 static char *machine_get_kernel(Object *obj, Error **errp) 70 { 71 MachineState *ms = MACHINE(obj); 72 73 return g_strdup(ms->kernel_filename); 74 } 75 76 static void machine_set_kernel(Object *obj, const char *value, Error **errp) 77 { 78 MachineState *ms = MACHINE(obj); 79 80 g_free(ms->kernel_filename); 81 ms->kernel_filename = g_strdup(value); 82 } 83 84 static char *machine_get_initrd(Object *obj, Error **errp) 85 { 86 MachineState *ms = MACHINE(obj); 87 88 return g_strdup(ms->initrd_filename); 89 } 90 91 static void machine_set_initrd(Object *obj, const char *value, Error **errp) 92 { 93 MachineState *ms = MACHINE(obj); 94 95 g_free(ms->initrd_filename); 96 ms->initrd_filename = g_strdup(value); 97 } 98 99 static char *machine_get_append(Object *obj, Error **errp) 100 { 101 MachineState *ms = MACHINE(obj); 102 103 return g_strdup(ms->kernel_cmdline); 104 } 105 106 static void machine_set_append(Object *obj, const char *value, Error **errp) 107 { 108 MachineState *ms = MACHINE(obj); 109 110 g_free(ms->kernel_cmdline); 111 ms->kernel_cmdline = g_strdup(value); 112 } 113 114 static char *machine_get_dtb(Object *obj, Error **errp) 115 { 116 MachineState *ms = MACHINE(obj); 117 118 return g_strdup(ms->dtb); 119 } 120 121 static void machine_set_dtb(Object *obj, const char *value, Error **errp) 122 { 123 MachineState *ms = MACHINE(obj); 124 125 g_free(ms->dtb); 126 ms->dtb = g_strdup(value); 127 } 128 129 static char *machine_get_dumpdtb(Object *obj, Error **errp) 130 { 131 MachineState *ms = MACHINE(obj); 132 133 return g_strdup(ms->dumpdtb); 134 } 135 136 static void machine_set_dumpdtb(Object *obj, const char *value, Error **errp) 137 { 138 MachineState *ms = MACHINE(obj); 139 140 g_free(ms->dumpdtb); 141 ms->dumpdtb = g_strdup(value); 142 } 143 144 static void machine_get_phandle_start(Object *obj, Visitor *v, 145 void *opaque, const char *name, 146 Error **errp) 147 { 148 MachineState *ms = MACHINE(obj); 149 int64_t value = ms->phandle_start; 150 151 visit_type_int(v, &value, name, errp); 152 } 153 154 static void machine_set_phandle_start(Object *obj, Visitor *v, 155 void *opaque, const char *name, 156 Error **errp) 157 { 158 MachineState *ms = MACHINE(obj); 159 Error *error = NULL; 160 int64_t value; 161 162 visit_type_int(v, &value, name, &error); 163 if (error) { 164 error_propagate(errp, error); 165 return; 166 } 167 168 ms->phandle_start = value; 169 } 170 171 static char *machine_get_dt_compatible(Object *obj, Error **errp) 172 { 173 MachineState *ms = MACHINE(obj); 174 175 return g_strdup(ms->dt_compatible); 176 } 177 178 static void machine_set_dt_compatible(Object *obj, const char *value, Error **errp) 179 { 180 MachineState *ms = MACHINE(obj); 181 182 g_free(ms->dt_compatible); 183 ms->dt_compatible = g_strdup(value); 184 } 185 186 static bool machine_get_dump_guest_core(Object *obj, Error **errp) 187 { 188 MachineState *ms = MACHINE(obj); 189 190 return ms->dump_guest_core; 191 } 192 193 static void machine_set_dump_guest_core(Object *obj, bool value, Error **errp) 194 { 195 MachineState *ms = MACHINE(obj); 196 197 ms->dump_guest_core = value; 198 } 199 200 static bool machine_get_mem_merge(Object *obj, Error **errp) 201 { 202 MachineState *ms = MACHINE(obj); 203 204 return ms->mem_merge; 205 } 206 207 static void machine_set_mem_merge(Object *obj, bool value, Error **errp) 208 { 209 MachineState *ms = MACHINE(obj); 210 211 ms->mem_merge = value; 212 } 213 214 static bool machine_get_usb(Object *obj, Error **errp) 215 { 216 MachineState *ms = MACHINE(obj); 217 218 return ms->usb; 219 } 220 221 static void machine_set_usb(Object *obj, bool value, Error **errp) 222 { 223 MachineState *ms = MACHINE(obj); 224 225 ms->usb = value; 226 } 227 228 static char *machine_get_firmware(Object *obj, Error **errp) 229 { 230 MachineState *ms = MACHINE(obj); 231 232 return g_strdup(ms->firmware); 233 } 234 235 static void machine_set_firmware(Object *obj, const char *value, Error **errp) 236 { 237 MachineState *ms = MACHINE(obj); 238 239 g_free(ms->firmware); 240 ms->firmware = g_strdup(value); 241 } 242 243 static bool machine_get_iommu(Object *obj, Error **errp) 244 { 245 MachineState *ms = MACHINE(obj); 246 247 return ms->iommu; 248 } 249 250 static void machine_set_iommu(Object *obj, bool value, Error **errp) 251 { 252 MachineState *ms = MACHINE(obj); 253 254 ms->iommu = value; 255 } 256 257 static void machine_set_suppress_vmdesc(Object *obj, bool value, Error **errp) 258 { 259 MachineState *ms = MACHINE(obj); 260 261 ms->suppress_vmdesc = value; 262 } 263 264 static bool machine_get_suppress_vmdesc(Object *obj, Error **errp) 265 { 266 MachineState *ms = MACHINE(obj); 267 268 return ms->suppress_vmdesc; 269 } 270 271 static int error_on_sysbus_device(SysBusDevice *sbdev, void *opaque) 272 { 273 error_report("Option '-device %s' cannot be handled by this machine", 274 object_class_get_name(object_get_class(OBJECT(sbdev)))); 275 exit(1); 276 } 277 278 static void machine_init_notify(Notifier *notifier, void *data) 279 { 280 Object *machine = qdev_get_machine(); 281 ObjectClass *oc = object_get_class(machine); 282 MachineClass *mc = MACHINE_CLASS(oc); 283 284 if (mc->has_dynamic_sysbus) { 285 /* Our machine can handle dynamic sysbus devices, we're all good */ 286 return; 287 } 288 289 /* 290 * Loop through all dynamically created devices and check whether there 291 * are sysbus devices among them. If there are, error out. 292 */ 293 foreach_dynamic_sysbus_device(error_on_sysbus_device, NULL); 294 } 295 296 static void machine_initfn(Object *obj) 297 { 298 MachineState *ms = MACHINE(obj); 299 300 ms->kernel_irqchip_allowed = true; 301 ms->kvm_shadow_mem = -1; 302 ms->dump_guest_core = true; 303 ms->mem_merge = true; 304 305 object_property_add_str(obj, "accel", 306 machine_get_accel, machine_set_accel, NULL); 307 object_property_set_description(obj, "accel", 308 "Accelerator list", 309 NULL); 310 object_property_add_bool(obj, "kernel-irqchip", 311 NULL, 312 machine_set_kernel_irqchip, 313 NULL); 314 object_property_set_description(obj, "kernel-irqchip", 315 "Use KVM in-kernel irqchip", 316 NULL); 317 object_property_add(obj, "kvm-shadow-mem", "int", 318 machine_get_kvm_shadow_mem, 319 machine_set_kvm_shadow_mem, 320 NULL, NULL, NULL); 321 object_property_set_description(obj, "kvm-shadow-mem", 322 "KVM shadow MMU size", 323 NULL); 324 object_property_add_str(obj, "kernel", 325 machine_get_kernel, machine_set_kernel, NULL); 326 object_property_set_description(obj, "kernel", 327 "Linux kernel image file", 328 NULL); 329 object_property_add_str(obj, "initrd", 330 machine_get_initrd, machine_set_initrd, NULL); 331 object_property_set_description(obj, "initrd", 332 "Linux initial ramdisk file", 333 NULL); 334 object_property_add_str(obj, "append", 335 machine_get_append, machine_set_append, NULL); 336 object_property_set_description(obj, "append", 337 "Linux kernel command line", 338 NULL); 339 object_property_add_str(obj, "dtb", 340 machine_get_dtb, machine_set_dtb, NULL); 341 object_property_set_description(obj, "dtb", 342 "Linux kernel device tree file", 343 NULL); 344 object_property_add_str(obj, "dumpdtb", 345 machine_get_dumpdtb, machine_set_dumpdtb, NULL); 346 object_property_set_description(obj, "dumpdtb", 347 "Dump current dtb to a file and quit", 348 NULL); 349 object_property_add(obj, "phandle-start", "int", 350 machine_get_phandle_start, 351 machine_set_phandle_start, 352 NULL, NULL, NULL); 353 object_property_set_description(obj, "phandle-start", 354 "The first phandle ID we may generate dynamically", 355 NULL); 356 object_property_add_str(obj, "dt-compatible", 357 machine_get_dt_compatible, 358 machine_set_dt_compatible, 359 NULL); 360 object_property_set_description(obj, "dt-compatible", 361 "Overrides the \"compatible\" property of the dt root node", 362 NULL); 363 object_property_add_bool(obj, "dump-guest-core", 364 machine_get_dump_guest_core, 365 machine_set_dump_guest_core, 366 NULL); 367 object_property_set_description(obj, "dump-guest-core", 368 "Include guest memory in a core dump", 369 NULL); 370 object_property_add_bool(obj, "mem-merge", 371 machine_get_mem_merge, 372 machine_set_mem_merge, NULL); 373 object_property_set_description(obj, "mem-merge", 374 "Enable/disable memory merge support", 375 NULL); 376 object_property_add_bool(obj, "usb", 377 machine_get_usb, 378 machine_set_usb, NULL); 379 object_property_set_description(obj, "usb", 380 "Set on/off to enable/disable usb", 381 NULL); 382 object_property_add_str(obj, "firmware", 383 machine_get_firmware, 384 machine_set_firmware, NULL); 385 object_property_set_description(obj, "firmware", 386 "Firmware image", 387 NULL); 388 object_property_add_bool(obj, "iommu", 389 machine_get_iommu, 390 machine_set_iommu, NULL); 391 object_property_set_description(obj, "iommu", 392 "Set on/off to enable/disable Intel IOMMU (VT-d)", 393 NULL); 394 object_property_add_bool(obj, "suppress-vmdesc", 395 machine_get_suppress_vmdesc, 396 machine_set_suppress_vmdesc, NULL); 397 object_property_set_description(obj, "suppress-vmdesc", 398 "Set on to disable self-describing migration", 399 NULL); 400 401 /* Register notifier when init is done for sysbus sanity checks */ 402 ms->sysbus_notifier.notify = machine_init_notify; 403 qemu_add_machine_init_done_notifier(&ms->sysbus_notifier); 404 } 405 406 static void machine_finalize(Object *obj) 407 { 408 MachineState *ms = MACHINE(obj); 409 410 g_free(ms->accel); 411 g_free(ms->kernel_filename); 412 g_free(ms->initrd_filename); 413 g_free(ms->kernel_cmdline); 414 g_free(ms->dtb); 415 g_free(ms->dumpdtb); 416 g_free(ms->dt_compatible); 417 g_free(ms->firmware); 418 } 419 420 bool machine_usb(MachineState *machine) 421 { 422 return machine->usb; 423 } 424 425 bool machine_iommu(MachineState *machine) 426 { 427 return machine->iommu; 428 } 429 430 bool machine_kernel_irqchip_allowed(MachineState *machine) 431 { 432 return machine->kernel_irqchip_allowed; 433 } 434 435 bool machine_kernel_irqchip_required(MachineState *machine) 436 { 437 return machine->kernel_irqchip_required; 438 } 439 440 int machine_kvm_shadow_mem(MachineState *machine) 441 { 442 return machine->kvm_shadow_mem; 443 } 444 445 int machine_phandle_start(MachineState *machine) 446 { 447 return machine->phandle_start; 448 } 449 450 bool machine_dump_guest_core(MachineState *machine) 451 { 452 return machine->dump_guest_core; 453 } 454 455 bool machine_mem_merge(MachineState *machine) 456 { 457 return machine->mem_merge; 458 } 459 460 static const TypeInfo machine_info = { 461 .name = TYPE_MACHINE, 462 .parent = TYPE_OBJECT, 463 .abstract = true, 464 .class_size = sizeof(MachineClass), 465 .instance_size = sizeof(MachineState), 466 .instance_init = machine_initfn, 467 .instance_finalize = machine_finalize, 468 }; 469 470 static void machine_register_types(void) 471 { 472 type_register_static(&machine_info); 473 } 474 475 type_init(machine_register_types) 476