qemu/hw/pc_piix.c
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   1/*
   2 * QEMU PC System Emulator
   3 *
   4 * Copyright (c) 2003-2004 Fabrice Bellard
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 */
  24
  25#include "hw.h"
  26#include "pc.h"
  27#include "apic.h"
  28#include "pci.h"
  29#include "usb-uhci.h"
  30#include "usb-ohci.h"
  31#include "net.h"
  32#include "boards.h"
  33#include "ide.h"
  34#include "kvm.h"
  35#include "sysemu.h"
  36#include "sysbus.h"
  37
  38#define MAX_IDE_BUS 2
  39
  40static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  41static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  42static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  43
  44static void ioapic_init(IsaIrqState *isa_irq_state)
  45{
  46    DeviceState *dev;
  47    SysBusDevice *d;
  48    unsigned int i;
  49
  50    dev = qdev_create(NULL, "ioapic");
  51    qdev_init_nofail(dev);
  52    d = sysbus_from_qdev(dev);
  53    sysbus_mmio_map(d, 0, 0xfec00000);
  54
  55    for (i = 0; i < IOAPIC_NUM_PINS; i++) {
  56        isa_irq_state->ioapic[i] = qdev_get_gpio_in(dev, i);
  57    }
  58}
  59
  60/* PC hardware initialisation */
  61static void pc_init1(ram_addr_t ram_size,
  62                     const char *boot_device,
  63                     const char *kernel_filename,
  64                     const char *kernel_cmdline,
  65                     const char *initrd_filename,
  66                     const char *cpu_model,
  67                     int pci_enabled)
  68{
  69    int i;
  70    ram_addr_t below_4g_mem_size, above_4g_mem_size;
  71    PCIBus *pci_bus;
  72    PCII440FXState *i440fx_state;
  73    int piix3_devfn = -1;
  74    qemu_irq *cpu_irq;
  75    qemu_irq *isa_irq;
  76    qemu_irq *i8259;
  77    qemu_irq *cmos_s3;
  78    qemu_irq *smi_irq;
  79    IsaIrqState *isa_irq_state;
  80    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  81    FDCtrl *floppy_controller;
  82    BusState *idebus[MAX_IDE_BUS];
  83    ISADevice *rtc_state;
  84
  85    pc_cpus_init(cpu_model);
  86
  87    vmport_init();
  88
  89    /* allocate ram and load rom/bios */
  90    pc_memory_init(ram_size, kernel_filename, kernel_cmdline, initrd_filename,
  91                   &below_4g_mem_size, &above_4g_mem_size);
  92
  93    cpu_irq = pc_allocate_cpu_irq();
  94    i8259 = i8259_init(cpu_irq[0]);
  95    isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
  96    isa_irq_state->i8259 = i8259;
  97    if (pci_enabled) {
  98        ioapic_init(isa_irq_state);
  99    }
 100    isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
 101
 102    if (pci_enabled) {
 103        pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
 104    } else {
 105        pci_bus = NULL;
 106        isa_bus_new(NULL);
 107    }
 108    isa_bus_irqs(isa_irq);
 109
 110    pc_register_ferr_irq(isa_reserve_irq(13));
 111
 112    pc_vga_init(pci_enabled? pci_bus: NULL);
 113
 114    /* init basic PC hardware */
 115    pc_basic_device_init(isa_irq, &floppy_controller, &rtc_state);
 116
 117    for(i = 0; i < nb_nics; i++) {
 118        NICInfo *nd = &nd_table[i];
 119
 120        if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 121            pc_init_ne2k_isa(nd);
 122        else
 123            pci_nic_init_nofail(nd, "e1000", NULL);
 124    }
 125
 126    if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
 127        fprintf(stderr, "qemu: too many IDE bus\n");
 128        exit(1);
 129    }
 130
 131    for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
 132        hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
 133    }
 134
 135    if (pci_enabled) {
 136        PCIDevice *dev;
 137        dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 138        idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 139        idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 140    } else {
 141        for(i = 0; i < MAX_IDE_BUS; i++) {
 142            ISADevice *dev;
 143            dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 144                               hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 145            idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 146        }
 147    }
 148
 149    pc_audio_init(pci_enabled ? pci_bus : NULL, isa_irq);
 150
 151    pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 152                 idebus[0], idebus[1], floppy_controller, rtc_state);
 153
 154    if (pci_enabled && usb_enabled) {
 155        usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 156    }
 157
 158    if (pci_enabled && acpi_enabled) {
 159        uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
 160        i2c_bus *smbus;
 161
 162        cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 163        smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 164        /* TODO: Populate SPD eeprom data.  */
 165        smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 166                              isa_reserve_irq(9), *cmos_s3, *smi_irq,
 167                              kvm_enabled());
 168        for (i = 0; i < 8; i++) {
 169            DeviceState *eeprom;
 170            eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
 171            qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
 172            qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
 173            qdev_init_nofail(eeprom);
 174        }
 175    }
 176
 177    if (i440fx_state) {
 178        i440fx_init_memory_mappings(i440fx_state);
 179    }
 180
 181    if (pci_enabled) {
 182        pc_pci_device_init(pci_bus);
 183    }
 184}
 185
 186static void pc_init_pci(ram_addr_t ram_size,
 187                        const char *boot_device,
 188                        const char *kernel_filename,
 189                        const char *kernel_cmdline,
 190                        const char *initrd_filename,
 191                        const char *cpu_model)
 192{
 193    pc_init1(ram_size, boot_device,
 194             kernel_filename, kernel_cmdline,
 195             initrd_filename, cpu_model, 1);
 196}
 197
 198static void pc_init_isa(ram_addr_t ram_size,
 199                        const char *boot_device,
 200                        const char *kernel_filename,
 201                        const char *kernel_cmdline,
 202                        const char *initrd_filename,
 203                        const char *cpu_model)
 204{
 205    if (cpu_model == NULL)
 206        cpu_model = "486";
 207    pc_init1(ram_size, boot_device,
 208             kernel_filename, kernel_cmdline,
 209             initrd_filename, cpu_model, 0);
 210}
 211
 212static QEMUMachine pc_machine = {
 213    .name = "pc-0.13",
 214    .alias = "pc",
 215    .desc = "Standard PC",
 216    .init = pc_init_pci,
 217    .max_cpus = 255,
 218    .is_default = 1,
 219};
 220
 221static QEMUMachine pc_machine_v0_12 = {
 222    .name = "pc-0.12",
 223    .desc = "Standard PC",
 224    .init = pc_init_pci,
 225    .max_cpus = 255,
 226    .compat_props = (GlobalProperty[]) {
 227        {
 228            .driver   = "virtio-serial-pci",
 229            .property = "max_ports",
 230            .value    = stringify(1),
 231        },{
 232            .driver   = "virtio-serial-pci",
 233            .property = "vectors",
 234            .value    = stringify(0),
 235        },
 236        { /* end of list */ }
 237    }
 238};
 239
 240static QEMUMachine pc_machine_v0_11 = {
 241    .name = "pc-0.11",
 242    .desc = "Standard PC, qemu 0.11",
 243    .init = pc_init_pci,
 244    .max_cpus = 255,
 245    .compat_props = (GlobalProperty[]) {
 246        {
 247            .driver   = "virtio-blk-pci",
 248            .property = "vectors",
 249            .value    = stringify(0),
 250        },{
 251            .driver   = "virtio-serial-pci",
 252            .property = "max_ports",
 253            .value    = stringify(1),
 254        },{
 255            .driver   = "virtio-serial-pci",
 256            .property = "vectors",
 257            .value    = stringify(0),
 258        },{
 259            .driver   = "ide-drive",
 260            .property = "ver",
 261            .value    = "0.11",
 262        },{
 263            .driver   = "scsi-disk",
 264            .property = "ver",
 265            .value    = "0.11",
 266        },{
 267            .driver   = "PCI",
 268            .property = "rombar",
 269            .value    = stringify(0),
 270        },
 271        { /* end of list */ }
 272    }
 273};
 274
 275static QEMUMachine pc_machine_v0_10 = {
 276    .name = "pc-0.10",
 277    .desc = "Standard PC, qemu 0.10",
 278    .init = pc_init_pci,
 279    .max_cpus = 255,
 280    .compat_props = (GlobalProperty[]) {
 281        {
 282            .driver   = "virtio-blk-pci",
 283            .property = "class",
 284            .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 285        },{
 286            .driver   = "virtio-serial-pci",
 287            .property = "class",
 288            .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 289        },{
 290            .driver   = "virtio-serial-pci",
 291            .property = "max_ports",
 292            .value    = stringify(1),
 293        },{
 294            .driver   = "virtio-serial-pci",
 295            .property = "vectors",
 296            .value    = stringify(0),
 297        },{
 298            .driver   = "virtio-net-pci",
 299            .property = "vectors",
 300            .value    = stringify(0),
 301        },{
 302            .driver   = "virtio-blk-pci",
 303            .property = "vectors",
 304            .value    = stringify(0),
 305        },{
 306            .driver   = "ide-drive",
 307            .property = "ver",
 308            .value    = "0.10",
 309        },{
 310            .driver   = "scsi-disk",
 311            .property = "ver",
 312            .value    = "0.10",
 313        },{
 314            .driver   = "PCI",
 315            .property = "rombar",
 316            .value    = stringify(0),
 317        },
 318        { /* end of list */ }
 319    },
 320};
 321
 322static QEMUMachine isapc_machine = {
 323    .name = "isapc",
 324    .desc = "ISA-only PC",
 325    .init = pc_init_isa,
 326    .max_cpus = 1,
 327};
 328
 329static void pc_machine_init(void)
 330{
 331    qemu_register_machine(&pc_machine);
 332    qemu_register_machine(&pc_machine_v0_12);
 333    qemu_register_machine(&pc_machine_v0_11);
 334    qemu_register_machine(&pc_machine_v0_10);
 335    qemu_register_machine(&isapc_machine);
 336}
 337
 338machine_init(pc_machine_init);
 339