1 /* 2 * Q35 chipset based pc system emulator 3 * 4 * Copyright (c) 2003-2004 Fabrice Bellard 5 * Copyright (c) 2009, 2010 6 * Isaku Yamahata <yamahata at valinux co jp> 7 * VA Linux Systems Japan K.K. 8 * Copyright (C) 2012 Jason Baron <jbaron@redhat.com> 9 * 10 * This is based on pc.c, but heavily modified. 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining a copy 13 * of this software and associated documentation files (the "Software"), to deal 14 * in the Software without restriction, including without limitation the rights 15 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 16 * copies of the Software, and to permit persons to whom the Software is 17 * furnished to do so, subject to the following conditions: 18 * 19 * The above copyright notice and this permission notice shall be included in 20 * all copies or substantial portions of the Software. 21 * 22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 28 * THE SOFTWARE. 29 */ 30 #include "hw/hw.h" 31 #include "hw/loader.h" 32 #include "sysemu/arch_init.h" 33 #include "hw/i2c/smbus.h" 34 #include "hw/boards.h" 35 #include "hw/timer/mc146818rtc.h" 36 #include "hw/xen/xen.h" 37 #include "sysemu/kvm.h" 38 #include "hw/kvm/clock.h" 39 #include "hw/pci-host/q35.h" 40 #include "exec/address-spaces.h" 41 #include "hw/i386/ich9.h" 42 #include "hw/i386/smbios.h" 43 #include "hw/ide/pci.h" 44 #include "hw/ide/ahci.h" 45 #include "hw/usb.h" 46 #include "hw/cpu/icc_bus.h" 47 #include "qemu/error-report.h" 48 49 /* ICH9 AHCI has 6 ports */ 50 #define MAX_SATA_PORTS 6 51 52 static bool has_acpi_build = true; 53 static bool smbios_defaults = true; 54 static bool smbios_legacy_mode; 55 static bool smbios_uuid_encoded = true; 56 /* Make sure that guest addresses aligned at 1Gbyte boundaries get mapped to 57 * host addresses aligned at 1Gbyte boundaries. This way we can use 1GByte 58 * pages in the host. 59 */ 60 static bool gigabyte_align = true; 61 static bool has_reserved_memory = true; 62 63 /* PC hardware initialisation */ 64 static void pc_q35_init(MachineState *machine) 65 { 66 PCMachineState *pc_machine = PC_MACHINE(machine); 67 ram_addr_t below_4g_mem_size, above_4g_mem_size; 68 Q35PCIHost *q35_host; 69 PCIHostState *phb; 70 PCIBus *host_bus; 71 PCIDevice *lpc; 72 BusState *idebus[MAX_SATA_PORTS]; 73 ISADevice *rtc_state; 74 ISADevice *floppy; 75 MemoryRegion *pci_memory; 76 MemoryRegion *rom_memory; 77 MemoryRegion *ram_memory; 78 GSIState *gsi_state; 79 ISABus *isa_bus; 80 int pci_enabled = 1; 81 qemu_irq *cpu_irq; 82 qemu_irq *gsi; 83 qemu_irq *i8259; 84 int i; 85 ICH9LPCState *ich9_lpc; 86 PCIDevice *ahci; 87 DeviceState *icc_bridge; 88 PcGuestInfo *guest_info; 89 ram_addr_t lowmem; 90 DriveInfo *hd[MAX_SATA_PORTS]; 91 92 /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory 93 * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping 94 * also known as MMCFG). 95 * If it doesn't, we need to split it in chunks below and above 4G. 96 * In any case, try to make sure that guest addresses aligned at 97 * 1G boundaries get mapped to host addresses aligned at 1G boundaries. 98 * For old machine types, use whatever split we used historically to avoid 99 * breaking migration. 100 */ 101 if (machine->ram_size >= 0xb0000000) { 102 lowmem = gigabyte_align ? 0x80000000 : 0xb0000000; 103 } else { 104 lowmem = 0xb0000000; 105 } 106 107 /* Handle the machine opt max-ram-below-4g. It is basically doing 108 * min(qemu limit, user limit). 109 */ 110 if (lowmem > pc_machine->max_ram_below_4g) { 111 lowmem = pc_machine->max_ram_below_4g; 112 if (machine->ram_size - lowmem > lowmem && 113 lowmem & ((1ULL << 30) - 1)) { 114 error_report("Warning: Large machine and max_ram_below_4g(%"PRIu64 115 ") not a multiple of 1G; possible bad performance.", 116 pc_machine->max_ram_below_4g); 117 } 118 } 119 120 if (machine->ram_size >= lowmem) { 121 above_4g_mem_size = machine->ram_size - lowmem; 122 below_4g_mem_size = lowmem; 123 } else { 124 above_4g_mem_size = 0; 125 below_4g_mem_size = machine->ram_size; 126 } 127 128 if (xen_enabled() && xen_hvm_init(&below_4g_mem_size, &above_4g_mem_size, 129 &ram_memory) != 0) { 130 fprintf(stderr, "xen hardware virtual machine initialisation failed\n"); 131 exit(1); 132 } 133 134 icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE); 135 object_property_add_child(qdev_get_machine(), "icc-bridge", 136 OBJECT(icc_bridge), NULL); 137 138 pc_cpus_init(machine->cpu_model, icc_bridge); 139 pc_acpi_init("q35-acpi-dsdt.aml"); 140 141 kvmclock_create(); 142 143 /* pci enabled */ 144 if (pci_enabled) { 145 pci_memory = g_new(MemoryRegion, 1); 146 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); 147 rom_memory = pci_memory; 148 } else { 149 pci_memory = NULL; 150 rom_memory = get_system_memory(); 151 } 152 153 guest_info = pc_guest_info_init(below_4g_mem_size, above_4g_mem_size); 154 guest_info->isapc_ram_fw = false; 155 guest_info->has_acpi_build = has_acpi_build; 156 guest_info->has_reserved_memory = has_reserved_memory; 157 158 /* Migration was not supported in 2.0 for Q35, so do not bother 159 * with this hack (see hw/i386/acpi-build.c). 160 */ 161 guest_info->legacy_acpi_table_size = 0; 162 163 if (smbios_defaults) { 164 MachineClass *mc = MACHINE_GET_CLASS(machine); 165 /* These values are guest ABI, do not change */ 166 smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)", 167 mc->name, smbios_legacy_mode, smbios_uuid_encoded); 168 } 169 170 /* allocate ram and load rom/bios */ 171 if (!xen_enabled()) { 172 pc_memory_init(machine, get_system_memory(), 173 below_4g_mem_size, above_4g_mem_size, 174 rom_memory, &ram_memory, guest_info); 175 } 176 177 /* irq lines */ 178 gsi_state = g_malloc0(sizeof(*gsi_state)); 179 if (kvm_irqchip_in_kernel()) { 180 kvm_pc_setup_irq_routing(pci_enabled); 181 gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 182 GSI_NUM_PINS); 183 } else { 184 gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 185 } 186 187 /* create pci host bus */ 188 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE)); 189 190 object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host), NULL); 191 q35_host->mch.ram_memory = ram_memory; 192 q35_host->mch.pci_address_space = pci_memory; 193 q35_host->mch.system_memory = get_system_memory(); 194 q35_host->mch.address_space_io = get_system_io(); 195 q35_host->mch.below_4g_mem_size = below_4g_mem_size; 196 q35_host->mch.above_4g_mem_size = above_4g_mem_size; 197 q35_host->mch.guest_info = guest_info; 198 /* pci */ 199 qdev_init_nofail(DEVICE(q35_host)); 200 phb = PCI_HOST_BRIDGE(q35_host); 201 host_bus = phb->bus; 202 /* create ISA bus */ 203 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV, 204 ICH9_LPC_FUNC), true, 205 TYPE_ICH9_LPC_DEVICE); 206 207 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 208 TYPE_HOTPLUG_HANDLER, 209 (Object **)&pc_machine->acpi_dev, 210 object_property_allow_set_link, 211 OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort); 212 object_property_set_link(OBJECT(machine), OBJECT(lpc), 213 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort); 214 215 ich9_lpc = ICH9_LPC_DEVICE(lpc); 216 ich9_lpc->pic = gsi; 217 ich9_lpc->ioapic = gsi_state->ioapic_irq; 218 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc, 219 ICH9_LPC_NB_PIRQS); 220 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq); 221 isa_bus = ich9_lpc->isa_bus; 222 223 /*end early*/ 224 isa_bus_irqs(isa_bus, gsi); 225 226 if (kvm_irqchip_in_kernel()) { 227 i8259 = kvm_i8259_init(isa_bus); 228 } else if (xen_enabled()) { 229 i8259 = xen_interrupt_controller_init(); 230 } else { 231 cpu_irq = pc_allocate_cpu_irq(); 232 i8259 = i8259_init(isa_bus, cpu_irq[0]); 233 } 234 235 for (i = 0; i < ISA_NUM_IRQS; i++) { 236 gsi_state->i8259_irq[i] = i8259[i]; 237 } 238 if (pci_enabled) { 239 ioapic_init_gsi(gsi_state, "q35"); 240 } 241 qdev_init_nofail(icc_bridge); 242 243 pc_register_ferr_irq(gsi[13]); 244 245 assert(pc_machine->vmport != ON_OFF_AUTO_MAX); 246 if (pc_machine->vmport == ON_OFF_AUTO_AUTO) { 247 pc_machine->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 248 } 249 250 /* init basic PC hardware */ 251 pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, 252 (pc_machine->vmport != ON_OFF_AUTO_ON), 0xff0104); 253 254 /* connect pm stuff to lpc */ 255 ich9_lpc_pm_init(lpc); 256 257 /* ahci and SATA device, for q35 1 ahci controller is built-in */ 258 ahci = pci_create_simple_multifunction(host_bus, 259 PCI_DEVFN(ICH9_SATA1_DEV, 260 ICH9_SATA1_FUNC), 261 true, "ich9-ahci"); 262 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0"); 263 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1"); 264 g_assert(MAX_SATA_PORTS == ICH_AHCI(ahci)->ahci.ports); 265 ide_drive_get(hd, ICH_AHCI(ahci)->ahci.ports); 266 ahci_ide_create_devs(ahci, hd); 267 268 if (usb_enabled(false)) { 269 /* Should we create 6 UHCI according to ich9 spec? */ 270 ehci_create_ich9_with_companions(host_bus, 0x1d); 271 } 272 273 /* TODO: Populate SPD eeprom data. */ 274 smbus_eeprom_init(ich9_smb_init(host_bus, 275 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC), 276 0xb100), 277 8, NULL, 0); 278 279 pc_cmos_init(below_4g_mem_size, above_4g_mem_size, machine->boot_order, 280 machine, floppy, idebus[0], idebus[1], rtc_state); 281 282 /* the rest devices to which pci devfn is automatically assigned */ 283 pc_vga_init(isa_bus, host_bus); 284 pc_nic_init(isa_bus, host_bus); 285 if (pci_enabled) { 286 pc_pci_device_init(host_bus); 287 } 288 } 289 290 static void pc_compat_2_1(MachineState *machine) 291 { 292 PCMachineState *pcms = PC_MACHINE(machine); 293 294 pcms->enforce_aligned_dimm = false; 295 smbios_uuid_encoded = false; 296 x86_cpu_compat_set_features("coreduo", FEAT_1_ECX, CPUID_EXT_VMX, 0); 297 x86_cpu_compat_set_features("core2duo", FEAT_1_ECX, CPUID_EXT_VMX, 0); 298 x86_cpu_compat_kvm_no_autodisable(FEAT_8000_0001_ECX, CPUID_EXT3_SVM); 299 } 300 301 static void pc_compat_2_0(MachineState *machine) 302 { 303 pc_compat_2_1(machine); 304 smbios_legacy_mode = true; 305 has_reserved_memory = false; 306 pc_set_legacy_acpi_data_size(); 307 } 308 309 static void pc_compat_1_7(MachineState *machine) 310 { 311 pc_compat_2_0(machine); 312 smbios_defaults = false; 313 gigabyte_align = false; 314 option_rom_has_mr = true; 315 x86_cpu_compat_kvm_no_autoenable(FEAT_1_ECX, CPUID_EXT_X2APIC); 316 } 317 318 static void pc_compat_1_6(MachineState *machine) 319 { 320 pc_compat_1_7(machine); 321 rom_file_has_mr = false; 322 has_acpi_build = false; 323 } 324 325 static void pc_compat_1_5(MachineState *machine) 326 { 327 pc_compat_1_6(machine); 328 } 329 330 static void pc_compat_1_4(MachineState *machine) 331 { 332 pc_compat_1_5(machine); 333 x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE); 334 x86_cpu_compat_set_features("Westmere", FEAT_1_ECX, 0, CPUID_EXT_PCLMULQDQ); 335 } 336 337 static void pc_q35_init_2_1(MachineState *machine) 338 { 339 pc_compat_2_1(machine); 340 pc_q35_init(machine); 341 } 342 343 static void pc_q35_init_2_0(MachineState *machine) 344 { 345 pc_compat_2_0(machine); 346 pc_q35_init(machine); 347 } 348 349 static void pc_q35_init_1_7(MachineState *machine) 350 { 351 pc_compat_1_7(machine); 352 pc_q35_init(machine); 353 } 354 355 static void pc_q35_init_1_6(MachineState *machine) 356 { 357 pc_compat_1_6(machine); 358 pc_q35_init(machine); 359 } 360 361 static void pc_q35_init_1_5(MachineState *machine) 362 { 363 pc_compat_1_5(machine); 364 pc_q35_init(machine); 365 } 366 367 static void pc_q35_init_1_4(MachineState *machine) 368 { 369 pc_compat_1_4(machine); 370 pc_q35_init(machine); 371 } 372 373 #define PC_Q35_MACHINE_OPTIONS \ 374 PC_DEFAULT_MACHINE_OPTIONS, \ 375 .family = "pc_q35", \ 376 .desc = "Standard PC (Q35 + ICH9, 2009)", \ 377 .hot_add_cpu = pc_hot_add_cpu, \ 378 .units_per_default_bus = 1 379 380 #define PC_Q35_2_2_MACHINE_OPTIONS \ 381 PC_Q35_MACHINE_OPTIONS, \ 382 .default_machine_opts = "firmware=bios-256k.bin", \ 383 .default_display = "std" 384 385 static QEMUMachine pc_q35_machine_v2_2 = { 386 PC_Q35_2_2_MACHINE_OPTIONS, 387 .name = "pc-q35-2.2", 388 .alias = "q35", 389 .init = pc_q35_init, 390 }; 391 392 #define PC_Q35_2_1_MACHINE_OPTIONS \ 393 PC_Q35_MACHINE_OPTIONS, \ 394 .default_machine_opts = "firmware=bios-256k.bin" 395 396 static QEMUMachine pc_q35_machine_v2_1 = { 397 PC_Q35_2_1_MACHINE_OPTIONS, 398 .name = "pc-q35-2.1", 399 .init = pc_q35_init_2_1, 400 .compat_props = (GlobalProperty[]) { 401 HW_COMPAT_2_1, 402 { /* end of list */ } 403 }, 404 }; 405 406 #define PC_Q35_2_0_MACHINE_OPTIONS PC_Q35_2_1_MACHINE_OPTIONS 407 408 static QEMUMachine pc_q35_machine_v2_0 = { 409 PC_Q35_2_0_MACHINE_OPTIONS, 410 .name = "pc-q35-2.0", 411 .init = pc_q35_init_2_0, 412 .compat_props = (GlobalProperty[]) { 413 PC_COMPAT_2_0, 414 { /* end of list */ } 415 }, 416 }; 417 418 #define PC_Q35_1_7_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS 419 420 static QEMUMachine pc_q35_machine_v1_7 = { 421 PC_Q35_1_7_MACHINE_OPTIONS, 422 .name = "pc-q35-1.7", 423 .init = pc_q35_init_1_7, 424 .compat_props = (GlobalProperty[]) { 425 PC_COMPAT_1_7, 426 { /* end of list */ } 427 }, 428 }; 429 430 #define PC_Q35_1_6_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS 431 432 static QEMUMachine pc_q35_machine_v1_6 = { 433 PC_Q35_1_6_MACHINE_OPTIONS, 434 .name = "pc-q35-1.6", 435 .init = pc_q35_init_1_6, 436 .compat_props = (GlobalProperty[]) { 437 PC_COMPAT_1_6, 438 { /* end of list */ } 439 }, 440 }; 441 442 static QEMUMachine pc_q35_machine_v1_5 = { 443 PC_Q35_1_6_MACHINE_OPTIONS, 444 .name = "pc-q35-1.5", 445 .init = pc_q35_init_1_5, 446 .compat_props = (GlobalProperty[]) { 447 PC_COMPAT_1_5, 448 { /* end of list */ } 449 }, 450 }; 451 452 #define PC_Q35_1_4_MACHINE_OPTIONS \ 453 PC_Q35_1_6_MACHINE_OPTIONS, \ 454 .hot_add_cpu = NULL 455 456 static QEMUMachine pc_q35_machine_v1_4 = { 457 PC_Q35_1_4_MACHINE_OPTIONS, 458 .name = "pc-q35-1.4", 459 .init = pc_q35_init_1_4, 460 .compat_props = (GlobalProperty[]) { 461 PC_COMPAT_1_4, 462 { /* end of list */ } 463 }, 464 }; 465 466 static void pc_q35_machine_init(void) 467 { 468 qemu_register_pc_machine(&pc_q35_machine_v2_2); 469 qemu_register_pc_machine(&pc_q35_machine_v2_1); 470 qemu_register_pc_machine(&pc_q35_machine_v2_0); 471 qemu_register_pc_machine(&pc_q35_machine_v1_7); 472 qemu_register_pc_machine(&pc_q35_machine_v1_6); 473 qemu_register_pc_machine(&pc_q35_machine_v1_5); 474 qemu_register_pc_machine(&pc_q35_machine_v1_4); 475 } 476 477 machine_init(pc_q35_machine_init); 478