hw/i386/pc_q35.c

   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     /* init basic PC hardware */
 246     pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy,
 247                          !pc_machine->vmport, 0xff0104);
 248
 249     /* connect pm stuff to lpc */
 250     ich9_lpc_pm_init(lpc);
 251
 252     /* ahci and SATA device, for q35 1 ahci controller is built-in */
 253     ahci = pci_create_simple_multifunction(host_bus,
 254                                            PCI_DEVFN(ICH9_SATA1_DEV,
 255                                                      ICH9_SATA1_FUNC),
 256                                            true, "ich9-ahci");
 257     idebus[0] = qdev_get_child_bus(&ahci->qdev, "ide.0");
 258     idebus[1] = qdev_get_child_bus(&ahci->qdev, "ide.1");
 259     g_assert(MAX_SATA_PORTS == ICH_AHCI(ahci)->ahci.ports);
 260     ide_drive_get(hd, ICH_AHCI(ahci)->ahci.ports);
 261     ahci_ide_create_devs(ahci, hd);
 262
 263     if (usb_enabled(false)) {
 264         /* Should we create 6 UHCI according to ich9 spec? */
 265         ehci_create_ich9_with_companions(host_bus, 0x1d);
 266     }
 267
 268     /* TODO: Populate SPD eeprom data.  */
 269     smbus_eeprom_init(ich9_smb_init(host_bus,
 270                                     PCI_DEVFN(ICH9_SMB_DEV, ICH9_SMB_FUNC),
 271                                     0xb100),
 272                       8, NULL, 0);
 273
 274     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, machine->boot_order,
 275                  machine, floppy, idebus[0], idebus[1], rtc_state);
 276
 277     /* the rest devices to which pci devfn is automatically assigned */
 278     pc_vga_init(isa_bus, host_bus);
 279     pc_nic_init(isa_bus, host_bus);
 280     if (pci_enabled) {
 281         pc_pci_device_init(host_bus);
 282     }
 283 }
 284
 285 static void pc_compat_2_1(MachineState *machine)
 286 {
 287     smbios_uuid_encoded = false;
 288     x86_cpu_compat_set_features("coreduo", FEAT_1_ECX, CPUID_EXT_VMX, 0);
 289     x86_cpu_compat_set_features("core2duo", FEAT_1_ECX, CPUID_EXT_VMX, 0);
 290     x86_cpu_compat_kvm_no_autodisable(FEAT_8000_0001_ECX, CPUID_EXT3_SVM);
 291 }
 292
 293 static void pc_compat_2_0(MachineState *machine)
 294 {
 295     pc_compat_2_1(machine);
 296     smbios_legacy_mode = true;
 297     has_reserved_memory = false;
 298     pc_set_legacy_acpi_data_size();
 299 }
 300
 301 static void pc_compat_1_7(MachineState *machine)
 302 {
 303     pc_compat_2_0(machine);
 304     smbios_defaults = false;
 305     gigabyte_align = false;
 306     option_rom_has_mr = true;
 307     x86_cpu_compat_kvm_no_autoenable(FEAT_1_ECX, CPUID_EXT_X2APIC);
 308 }
 309
 310 static void pc_compat_1_6(MachineState *machine)
 311 {
 312     pc_compat_1_7(machine);
 313     rom_file_has_mr = false;
 314     has_acpi_build = false;
 315 }
 316
 317 static void pc_compat_1_5(MachineState *machine)
 318 {
 319     pc_compat_1_6(machine);
 320 }
 321
 322 static void pc_compat_1_4(MachineState *machine)
 323 {
 324     pc_compat_1_5(machine);
 325     x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE);
 326     x86_cpu_compat_set_features("Westmere", FEAT_1_ECX, 0, CPUID_EXT_PCLMULQDQ);
 327 }
 328
 329 static void pc_q35_init_2_1(MachineState *machine)
 330 {
 331     pc_compat_2_1(machine);
 332     pc_q35_init(machine);
 333 }
 334
 335 static void pc_q35_init_2_0(MachineState *machine)
 336 {
 337     pc_compat_2_0(machine);
 338     pc_q35_init(machine);
 339 }
 340
 341 static void pc_q35_init_1_7(MachineState *machine)
 342 {
 343     pc_compat_1_7(machine);
 344     pc_q35_init(machine);
 345 }
 346
 347 static void pc_q35_init_1_6(MachineState *machine)
 348 {
 349     pc_compat_1_6(machine);
 350     pc_q35_init(machine);
 351 }
 352
 353 static void pc_q35_init_1_5(MachineState *machine)
 354 {
 355     pc_compat_1_5(machine);
 356     pc_q35_init(machine);
 357 }
 358
 359 static void pc_q35_init_1_4(MachineState *machine)
 360 {
 361     pc_compat_1_4(machine);
 362     pc_q35_init(machine);
 363 }
 364
 365 #define PC_Q35_MACHINE_OPTIONS \
 366     PC_DEFAULT_MACHINE_OPTIONS, \
 367     .family = "pc_q35", \
 368     .desc = "Standard PC (Q35 + ICH9, 2009)", \
 369     .hot_add_cpu = pc_hot_add_cpu, \
 370     .units_per_default_bus = 1
 371
 372 #define PC_Q35_2_2_MACHINE_OPTIONS                      \
 373     PC_Q35_MACHINE_OPTIONS,                             \
 374     .default_machine_opts = "firmware=bios-256k.bin",   \
 375     .default_display = "std"
 376
 377 static QEMUMachine pc_q35_machine_v2_2 = {
 378     PC_Q35_2_2_MACHINE_OPTIONS,
 379     .name = "pc-q35-2.2",
 380     .alias = "q35",
 381     .init = pc_q35_init,
 382 };
 383
 384 #define PC_Q35_2_1_MACHINE_OPTIONS                      \
 385     PC_Q35_MACHINE_OPTIONS,                             \
 386     .default_machine_opts = "firmware=bios-256k.bin"
 387
 388 static QEMUMachine pc_q35_machine_v2_1 = {
 389     PC_Q35_2_1_MACHINE_OPTIONS,
 390     .name = "pc-q35-2.1",
 391     .init = pc_q35_init_2_1,
 392     .compat_props = (GlobalProperty[]) {
 393         HW_COMPAT_2_1,
 394         { /* end of list */ }
 395     },
 396 };
 397
 398 #define PC_Q35_2_0_MACHINE_OPTIONS PC_Q35_2_1_MACHINE_OPTIONS
 399
 400 static QEMUMachine pc_q35_machine_v2_0 = {
 401     PC_Q35_2_0_MACHINE_OPTIONS,
 402     .name = "pc-q35-2.0",
 403     .init = pc_q35_init_2_0,
 404     .compat_props = (GlobalProperty[]) {
 405         PC_COMPAT_2_0,
 406         { /* end of list */ }
 407     },
 408 };
 409
 410 #define PC_Q35_1_7_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
 411
 412 static QEMUMachine pc_q35_machine_v1_7 = {
 413     PC_Q35_1_7_MACHINE_OPTIONS,
 414     .name = "pc-q35-1.7",
 415     .init = pc_q35_init_1_7,
 416     .compat_props = (GlobalProperty[]) {
 417         PC_COMPAT_1_7,
 418         { /* end of list */ }
 419     },
 420 };
 421
 422 #define PC_Q35_1_6_MACHINE_OPTIONS PC_Q35_MACHINE_OPTIONS
 423
 424 static QEMUMachine pc_q35_machine_v1_6 = {
 425     PC_Q35_1_6_MACHINE_OPTIONS,
 426     .name = "pc-q35-1.6",
 427     .init = pc_q35_init_1_6,
 428     .compat_props = (GlobalProperty[]) {
 429         PC_COMPAT_1_6,
 430         { /* end of list */ }
 431     },
 432 };
 433
 434 static QEMUMachine pc_q35_machine_v1_5 = {
 435     PC_Q35_1_6_MACHINE_OPTIONS,
 436     .name = "pc-q35-1.5",
 437     .init = pc_q35_init_1_5,
 438     .compat_props = (GlobalProperty[]) {
 439         PC_COMPAT_1_5,
 440         { /* end of list */ }
 441     },
 442 };
 443
 444 #define PC_Q35_1_4_MACHINE_OPTIONS \
 445     PC_Q35_1_6_MACHINE_OPTIONS, \
 446     .hot_add_cpu = NULL
 447
 448 static QEMUMachine pc_q35_machine_v1_4 = {
 449     PC_Q35_1_4_MACHINE_OPTIONS,
 450     .name = "pc-q35-1.4",
 451     .init = pc_q35_init_1_4,
 452     .compat_props = (GlobalProperty[]) {
 453         PC_COMPAT_1_4,
 454         { /* end of list */ }
 455     },
 456 };
 457
 458 static void pc_q35_machine_init(void)
 459 {
 460     qemu_register_pc_machine(&pc_q35_machine_v2_2);
 461     qemu_register_pc_machine(&pc_q35_machine_v2_1);
 462     qemu_register_pc_machine(&pc_q35_machine_v2_0);
 463     qemu_register_pc_machine(&pc_q35_machine_v1_7);
 464     qemu_register_pc_machine(&pc_q35_machine_v1_6);
 465     qemu_register_pc_machine(&pc_q35_machine_v1_5);
 466     qemu_register_pc_machine(&pc_q35_machine_v1_4);
 467 }
 468
 469 machine_init(pc_q35_machine_init);