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 31 #include "qemu/osdep.h" 32 #include "hw/hw.h" 33 #include "hw/loader.h" 34 #include "sysemu/arch_init.h" 35 #include "hw/i2c/smbus.h" 36 #include "hw/boards.h" 37 #include "hw/timer/mc146818rtc.h" 38 #include "hw/xen/xen.h" 39 #include "sysemu/kvm.h" 40 #include "kvm_i386.h" 41 #include "hw/kvm/clock.h" 42 #include "hw/pci-host/q35.h" 43 #include "exec/address-spaces.h" 44 #include "hw/i386/pc.h" 45 #include "hw/i386/ich9.h" 46 #include "hw/i386/amd_iommu.h" 47 #include "hw/i386/intel_iommu.h" 48 #include "hw/smbios/smbios.h" 49 #include "hw/ide/pci.h" 50 #include "hw/ide/ahci.h" 51 #include "hw/usb.h" 52 #include "qapi/error.h" 53 #include "qemu/error-report.h" 54 #include "sysemu/numa.h" 55 56 /* ICH9 AHCI has 6 ports */ 57 #define MAX_SATA_PORTS 6 58 59 /* PC hardware initialisation */ 60 static void pc_q35_init(MachineState *machine) 61 { 62 PCMachineState *pcms = PC_MACHINE(machine); 63 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 64 Q35PCIHost *q35_host; 65 PCIHostState *phb; 66 PCIBus *host_bus; 67 PCIDevice *lpc; 68 DeviceState *lpc_dev; 69 BusState *idebus[MAX_SATA_PORTS]; 70 ISADevice *rtc_state; 71 MemoryRegion *system_io = get_system_io(); 72 MemoryRegion *pci_memory; 73 MemoryRegion *rom_memory; 74 MemoryRegion *ram_memory; 75 GSIState *gsi_state; 76 ISABus *isa_bus; 77 qemu_irq *i8259; 78 int i; 79 ICH9LPCState *ich9_lpc; 80 PCIDevice *ahci; 81 ram_addr_t lowmem; 82 DriveInfo *hd[MAX_SATA_PORTS]; 83 MachineClass *mc = MACHINE_GET_CLASS(machine); 84 85 /* Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory 86 * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping 87 * also known as MMCFG). 88 * If it doesn't, we need to split it in chunks below and above 4G. 89 * In any case, try to make sure that guest addresses aligned at 90 * 1G boundaries get mapped to host addresses aligned at 1G boundaries. 91 */ 92 if (machine->ram_size >= 0xb0000000) { 93 lowmem = 0x80000000; 94 } else { 95 lowmem = 0xb0000000; 96 } 97 98 /* Handle the machine opt max-ram-below-4g. It is basically doing 99 * min(qemu limit, user limit). 100 */ 101 if (!pcms->max_ram_below_4g) { 102 pcms->max_ram_below_4g = 1ULL << 32; /* default: 4G */; 103 } 104 if (lowmem > pcms->max_ram_below_4g) { 105 lowmem = pcms->max_ram_below_4g; 106 if (machine->ram_size - lowmem > lowmem && 107 lowmem & ((1ULL << 30) - 1)) { 108 warn_report("There is possibly poor performance as the ram size " 109 " (0x%" PRIx64 ") is more then twice the size of" 110 " max-ram-below-4g (%"PRIu64") and" 111 " max-ram-below-4g is not a multiple of 1G.", 112 (uint64_t)machine->ram_size, pcms->max_ram_below_4g); 113 } 114 } 115 116 if (machine->ram_size >= lowmem) { 117 pcms->above_4g_mem_size = machine->ram_size - lowmem; 118 pcms->below_4g_mem_size = lowmem; 119 } else { 120 pcms->above_4g_mem_size = 0; 121 pcms->below_4g_mem_size = machine->ram_size; 122 } 123 124 if (xen_enabled()) { 125 xen_hvm_init(pcms, &ram_memory); 126 } 127 128 pc_cpus_init(pcms); 129 130 kvmclock_create(); 131 132 /* pci enabled */ 133 if (pcmc->pci_enabled) { 134 pci_memory = g_new(MemoryRegion, 1); 135 memory_region_init(pci_memory, NULL, "pci", UINT64_MAX); 136 rom_memory = pci_memory; 137 } else { 138 pci_memory = NULL; 139 rom_memory = get_system_memory(); 140 } 141 142 pc_guest_info_init(pcms); 143 144 if (pcmc->smbios_defaults) { 145 /* These values are guest ABI, do not change */ 146 smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)", 147 mc->name, pcmc->smbios_legacy_mode, 148 pcmc->smbios_uuid_encoded, 149 SMBIOS_ENTRY_POINT_21); 150 } 151 152 /* allocate ram and load rom/bios */ 153 if (!xen_enabled()) { 154 pc_memory_init(pcms, get_system_memory(), 155 rom_memory, &ram_memory); 156 } 157 158 /* irq lines */ 159 gsi_state = g_malloc0(sizeof(*gsi_state)); 160 if (kvm_ioapic_in_kernel()) { 161 kvm_pc_setup_irq_routing(pcmc->pci_enabled); 162 pcms->gsi = qemu_allocate_irqs(kvm_pc_gsi_handler, gsi_state, 163 GSI_NUM_PINS); 164 } else { 165 pcms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 166 } 167 168 /* create pci host bus */ 169 q35_host = Q35_HOST_DEVICE(qdev_create(NULL, TYPE_Q35_HOST_DEVICE)); 170 171 object_property_add_child(qdev_get_machine(), "q35", OBJECT(q35_host), NULL); 172 object_property_set_link(OBJECT(q35_host), OBJECT(ram_memory), 173 MCH_HOST_PROP_RAM_MEM, NULL); 174 object_property_set_link(OBJECT(q35_host), OBJECT(pci_memory), 175 MCH_HOST_PROP_PCI_MEM, NULL); 176 object_property_set_link(OBJECT(q35_host), OBJECT(get_system_memory()), 177 MCH_HOST_PROP_SYSTEM_MEM, NULL); 178 object_property_set_link(OBJECT(q35_host), OBJECT(system_io), 179 MCH_HOST_PROP_IO_MEM, NULL); 180 object_property_set_int(OBJECT(q35_host), pcms->below_4g_mem_size, 181 PCI_HOST_BELOW_4G_MEM_SIZE, NULL); 182 object_property_set_int(OBJECT(q35_host), pcms->above_4g_mem_size, 183 PCI_HOST_ABOVE_4G_MEM_SIZE, NULL); 184 /* pci */ 185 qdev_init_nofail(DEVICE(q35_host)); 186 phb = PCI_HOST_BRIDGE(q35_host); 187 host_bus = phb->bus; 188 /* create ISA bus */ 189 lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV, 190 ICH9_LPC_FUNC), true, 191 TYPE_ICH9_LPC_DEVICE); 192 193 object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP, 194 TYPE_HOTPLUG_HANDLER, 195 (Object **)&pcms->acpi_dev, 196 object_property_allow_set_link, 197 OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort); 198 object_property_set_link(OBJECT(machine), OBJECT(lpc), 199 PC_MACHINE_ACPI_DEVICE_PROP, &error_abort); 200 201 ich9_lpc = ICH9_LPC_DEVICE(lpc); 202 lpc_dev = DEVICE(lpc); 203 for (i = 0; i < GSI_NUM_PINS; i++) { 204 qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, pcms->gsi[i]); 205 } 206 pci_bus_irqs(host_bus, ich9_lpc_set_irq, ich9_lpc_map_irq, ich9_lpc, 207 ICH9_LPC_NB_PIRQS); 208 pci_bus_set_route_irq_fn(host_bus, ich9_route_intx_pin_to_irq); 209 isa_bus = ich9_lpc->isa_bus; 210 211 if (kvm_pic_in_kernel()) { 212 i8259 = kvm_i8259_init(isa_bus); 213 } else if (xen_enabled()) { 214 i8259 = xen_interrupt_controller_init(); 215 } else { 216 i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq()); 217 } 218 219 for (i = 0; i < ISA_NUM_IRQS; i++) { 220 gsi_state->i8259_irq[i] = i8259[i]; 221 } 222 g_free(i8259); 223 224 if (pcmc->pci_enabled) { 225 ioapic_init_gsi(gsi_state, "q35"); 226 } 227 228 pc_register_ferr_irq(pcms->gsi[13]); 229 230 assert(pcms->vmport != ON_OFF_AUTO__MAX); 231 if (pcms->vmport == ON_OFF_AUTO_AUTO) { 232 pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON; 233 } 234 235 /* init basic PC hardware */ 236 pc_basic_device_init(isa_bus, pcms->gsi, &rtc_state, !mc->no_floppy, 237 (pcms->vmport != ON_OFF_AUTO_ON), pcms->pit, 238 0xff0104); 239 240 /* connect pm stuff to lpc */ 241 ich9_lpc_pm_init(lpc, pc_machine_is_smm_enabled(pcms)); 242 243 if (pcms->sata) { 244 /* ahci and SATA device, for q35 1 ahci controller is built-in */ 245 ahci = pci_create_simple_multifunction(host_bus, 246 PCI_DEVFN(ICH9_SATA1_DEV, 247 ICH9_SATA1_FUNC), 248 true, "ich9-ahci"); 249 idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0"); 250 idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1"); 251 g_assert(MAX_SATA_PORTS == ahci_get_num_ports(ahci)); 252 ide_drive_get(hd, ahci_get_num_ports(ahci)); 253 ahci_ide_create_devs(ahci, hd); 254 } else { 255 idebus[0] = idebus[1] = NULL; 256 } 257 258 if (machine_usb(machine)) { 259 /* Should we create 6 UHCI according to ich9 spec? */ 260 ehci_create_ich9_with_companions(host_bus, 0x1d); 261 } 262 263 if (pcms->smbus) { 264 /* TODO: Populate SPD eeprom data. */ 265 smbus_eeprom_init(ich9_smb_init(host_bus, 266 PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC), 267 0xb100), 268 8, NULL, 0); 269 } 270 271 pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state); 272 273 /* the rest devices to which pci devfn is automatically assigned */ 274 pc_vga_init(isa_bus, host_bus); 275 pc_nic_init(pcmc, isa_bus, host_bus); 276 277 if (pcms->acpi_nvdimm_state.is_enabled) { 278 nvdimm_init_acpi_state(&pcms->acpi_nvdimm_state, system_io, 279 pcms->fw_cfg, OBJECT(pcms)); 280 } 281 } 282 283 #define DEFINE_Q35_MACHINE(suffix, name, compatfn, optionfn) \ 284 static void pc_init_##suffix(MachineState *machine) \ 285 { \ 286 void (*compat)(MachineState *m) = (compatfn); \ 287 if (compat) { \ 288 compat(machine); \ 289 } \ 290 pc_q35_init(machine); \ 291 } \ 292 DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn) 293 294 295 static void pc_q35_machine_options(MachineClass *m) 296 { 297 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 298 pcmc->default_nic_model = "e1000e"; 299 300 m->family = "pc_q35"; 301 m->desc = "Standard PC (Q35 + ICH9, 2009)"; 302 m->units_per_default_bus = 1; 303 m->default_machine_opts = "firmware=bios-256k.bin"; 304 m->default_display = "std"; 305 m->no_floppy = 1; 306 machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE); 307 machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE); 308 m->max_cpus = 288; 309 } 310 311 static void pc_q35_2_12_machine_options(MachineClass *m) 312 { 313 pc_q35_machine_options(m); 314 m->alias = "q35"; 315 } 316 317 DEFINE_Q35_MACHINE(v2_12, "pc-q35-2.12", NULL, 318 pc_q35_2_12_machine_options); 319 320 static void pc_q35_2_11_machine_options(MachineClass *m) 321 { 322 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 323 324 pc_q35_2_12_machine_options(m); 325 pcmc->default_nic_model = "e1000"; 326 m->alias = NULL; 327 SET_MACHINE_COMPAT(m, PC_COMPAT_2_11); 328 } 329 330 DEFINE_Q35_MACHINE(v2_11, "pc-q35-2.11", NULL, 331 pc_q35_2_11_machine_options); 332 333 static void pc_q35_2_10_machine_options(MachineClass *m) 334 { 335 pc_q35_2_11_machine_options(m); 336 SET_MACHINE_COMPAT(m, PC_COMPAT_2_10); 337 m->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 338 m->auto_enable_numa_with_memhp = false; 339 } 340 341 DEFINE_Q35_MACHINE(v2_10, "pc-q35-2.10", NULL, 342 pc_q35_2_10_machine_options); 343 344 static void pc_q35_2_9_machine_options(MachineClass *m) 345 { 346 pc_q35_2_10_machine_options(m); 347 SET_MACHINE_COMPAT(m, PC_COMPAT_2_9); 348 } 349 350 DEFINE_Q35_MACHINE(v2_9, "pc-q35-2.9", NULL, 351 pc_q35_2_9_machine_options); 352 353 static void pc_q35_2_8_machine_options(MachineClass *m) 354 { 355 pc_q35_2_9_machine_options(m); 356 SET_MACHINE_COMPAT(m, PC_COMPAT_2_8); 357 } 358 359 DEFINE_Q35_MACHINE(v2_8, "pc-q35-2.8", NULL, 360 pc_q35_2_8_machine_options); 361 362 static void pc_q35_2_7_machine_options(MachineClass *m) 363 { 364 pc_q35_2_8_machine_options(m); 365 m->max_cpus = 255; 366 SET_MACHINE_COMPAT(m, PC_COMPAT_2_7); 367 } 368 369 DEFINE_Q35_MACHINE(v2_7, "pc-q35-2.7", NULL, 370 pc_q35_2_7_machine_options); 371 372 static void pc_q35_2_6_machine_options(MachineClass *m) 373 { 374 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 375 pc_q35_2_7_machine_options(m); 376 pcmc->legacy_cpu_hotplug = true; 377 pcmc->linuxboot_dma_enabled = false; 378 SET_MACHINE_COMPAT(m, PC_COMPAT_2_6); 379 } 380 381 DEFINE_Q35_MACHINE(v2_6, "pc-q35-2.6", NULL, 382 pc_q35_2_6_machine_options); 383 384 static void pc_q35_2_5_machine_options(MachineClass *m) 385 { 386 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 387 pc_q35_2_6_machine_options(m); 388 pcmc->save_tsc_khz = false; 389 m->legacy_fw_cfg_order = 1; 390 SET_MACHINE_COMPAT(m, PC_COMPAT_2_5); 391 } 392 393 DEFINE_Q35_MACHINE(v2_5, "pc-q35-2.5", NULL, 394 pc_q35_2_5_machine_options); 395 396 static void pc_q35_2_4_machine_options(MachineClass *m) 397 { 398 PCMachineClass *pcmc = PC_MACHINE_CLASS(m); 399 pc_q35_2_5_machine_options(m); 400 m->hw_version = "2.4.0"; 401 pcmc->broken_reserved_end = true; 402 SET_MACHINE_COMPAT(m, PC_COMPAT_2_4); 403 } 404 405 DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL, 406 pc_q35_2_4_machine_options); 407