hw/pc_piix.c

   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 #include "blockdev.h"
  38
  39 qemu_irq *ioapic_irq_hack;
  40
  41 #define MAX_IDE_BUS 2
  42
  43 static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
  44 static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
  45 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
  46
  47 const char *global_cpu_model; /* cpu hotadd */
  48
  49 static void ioapic_init(IsaIrqState *isa_irq_state)
  50 {
  51     DeviceState *dev;
  52     SysBusDevice *d;
  53     unsigned int i;
  54
  55     dev = qdev_create(NULL, "ioapic");
  56     qdev_init_nofail(dev);
  57     d = sysbus_from_qdev(dev);
  58     sysbus_mmio_map(d, 0, 0xfec00000);
  59
  60     for (i = 0; i < IOAPIC_NUM_PINS; i++) {
  61         isa_irq_state->ioapic[i] = qdev_get_gpio_in(dev, i);
  62     }
  63 }
  64
  65 /* PC hardware initialisation */
  66 static void pc_init1(ram_addr_t ram_size,
  67                      const char *boot_device,
  68                      const char *kernel_filename,
  69                      const char *kernel_cmdline,
  70                      const char *initrd_filename,
  71                      const char *cpu_model,
  72                      int pci_enabled)
  73 {
  74     int i;
  75     ram_addr_t below_4g_mem_size, above_4g_mem_size;
  76     PCIBus *pci_bus;
  77     PCII440FXState *i440fx_state;
  78     int piix3_devfn = -1;
  79     qemu_irq *cpu_irq;
  80     qemu_irq *isa_irq;
  81     qemu_irq *i8259;
  82     qemu_irq *cmos_s3;
  83     qemu_irq *smi_irq;
  84     IsaIrqState *isa_irq_state;
  85     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
  86     FDCtrl *floppy_controller;
  87     BusState *idebus[MAX_IDE_BUS];
  88     ISADevice *rtc_state;
  89
  90     global_cpu_model = cpu_model;
  91
  92     pc_cpus_init(cpu_model);
  93
  94     vmport_init();
  95
  96     /* allocate ram and load rom/bios */
  97     pc_memory_init(ram_size, kernel_filename, kernel_cmdline, initrd_filename,
  98                    &below_4g_mem_size, &above_4g_mem_size);
  99
 100     cpu_irq = pc_allocate_cpu_irq();
 101 #ifdef KVM_CAP_IRQCHIP
 102     if (kvm_enabled() && kvm_irqchip_in_kernel()) {
 103         isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
 104         if (pci_enabled) {
 105             ioapic_init(isa_irq_state);
 106         }
 107         isa_irq = i8259 = kvm_i8259_init(cpu_irq[0]);
 108         ioapic_irq_hack = isa_irq;
 109     } else
 110 #endif
 111     {
 112         i8259 = i8259_init(cpu_irq[0]);
 113         isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
 114         isa_irq_state->i8259 = i8259;
 115         if (pci_enabled) {
 116             ioapic_init(isa_irq_state);
 117         }
 118         isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
 119     }
 120
 121     if (pci_enabled) {
 122         pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq, ram_size);
 123     } else {
 124         pci_bus = NULL;
 125         i440fx_state = NULL;
 126         isa_bus_new(NULL);
 127     }
 128     isa_bus_irqs(isa_irq);
 129
 130     pc_register_ferr_irq(isa_reserve_irq(13));
 131
 132     pc_vga_init(pci_enabled? pci_bus: NULL);
 133
 134     /* init basic PC hardware */
 135     pc_basic_device_init(isa_irq, &floppy_controller, &rtc_state);
 136
 137     for(i = 0; i < nb_nics; i++) {
 138         NICInfo *nd = &nd_table[i];
 139
 140         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
 141             pc_init_ne2k_isa(nd);
 142         else
 143             pci_nic_init_nofail(nd, "rtl8139", NULL);
 144     }
 145
 146     if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
 147         fprintf(stderr, "qemu: too many IDE bus\n");
 148         exit(1);
 149     }
 150
 151     for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
 152         hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
 153     }
 154
 155     if (pci_enabled) {
 156         PCIDevice *dev;
 157         dev = pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
 158         idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
 159         idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
 160     } else {
 161         for(i = 0; i < MAX_IDE_BUS; i++) {
 162             ISADevice *dev;
 163             dev = isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
 164                                hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
 165             idebus[i] = qdev_get_child_bus(&dev->qdev, "ide.0");
 166         }
 167     }
 168
 169     pc_audio_init(pci_enabled ? pci_bus : NULL, isa_irq);
 170
 171     pc_cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device,
 172                  idebus[0], idebus[1], floppy_controller, rtc_state);
 173
 174     if (pci_enabled && usb_enabled) {
 175         usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
 176     }
 177
 178     if (pci_enabled && acpi_enabled) {
 179         uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
 180         i2c_bus *smbus;
 181
 182         cmos_s3 = qemu_allocate_irqs(pc_cmos_set_s3_resume, rtc_state, 1);
 183         smi_irq = qemu_allocate_irqs(pc_acpi_smi_interrupt, first_cpu, 1);
 184         /* TODO: Populate SPD eeprom data.  */
 185         smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
 186                               isa_reserve_irq(9), *cmos_s3, *smi_irq,
 187                               kvm_enabled());
 188         for (i = 0; i < 8; i++) {
 189             DeviceState *eeprom;
 190             eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
 191             qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
 192             qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
 193             qdev_init_nofail(eeprom);
 194         }
 195     }
 196
 197     if (i440fx_state) {
 198         i440fx_init_memory_mappings(i440fx_state);
 199     }
 200
 201     if (pci_enabled) {
 202         pc_pci_device_init(pci_bus);
 203     }
 204 }
 205
 206 static void pc_init_pci(ram_addr_t ram_size,
 207                         const char *boot_device,
 208                         const char *kernel_filename,
 209                         const char *kernel_cmdline,
 210                         const char *initrd_filename,
 211                         const char *cpu_model)
 212 {
 213     pc_init1(ram_size, boot_device,
 214              kernel_filename, kernel_cmdline,
 215              initrd_filename, cpu_model, 1);
 216 }
 217
 218 static void pc_init_isa(ram_addr_t ram_size,
 219                         const char *boot_device,
 220                         const char *kernel_filename,
 221                         const char *kernel_cmdline,
 222                         const char *initrd_filename,
 223                         const char *cpu_model)
 224 {
 225     if (cpu_model == NULL)
 226         cpu_model = "486";
 227     pc_init1(ram_size, boot_device,
 228              kernel_filename, kernel_cmdline,
 229              initrd_filename, cpu_model, 0);
 230 }
 231
 232 static QEMUMachine pc_machine = {
 233     .name = "pc-0.14",
 234     .alias = "pc",
 235     .desc = "Standard PC",
 236     .init = pc_init_pci,
 237     .max_cpus = 255,
 238     .is_default = 1,
 239 };
 240
 241 static QEMUMachine pc_machine_v0_13 = {
 242     .name = "pc-0.13",
 243     .desc = "Standard PC",
 244     .init = pc_init_pci,
 245     .max_cpus = 255,
 246     .compat_props = (GlobalProperty[]) {
 247         {
 248             .driver   = "virtio-9p-pci",
 249             .property = "vectors",
 250             .value    = stringify(0),
 251         },{
 252             .driver   = "VGA",
 253             .property = "rombar",
 254             .value    = stringify(0),
 255         },{
 256             .driver   = "vmware-svga",
 257             .property = "rombar",
 258             .value    = stringify(0),
 259         },
 260         { /* end of list */ }
 261     },
 262 };
 263
 264 static QEMUMachine pc_machine_v0_12 = {
 265     .name = "pc-0.12",
 266     .desc = "Standard PC",
 267     .init = pc_init_pci,
 268     .max_cpus = 255,
 269     .compat_props = (GlobalProperty[]) {
 270         {
 271             .driver   = "virtio-serial-pci",
 272             .property = "max_ports",
 273             .value    = stringify(1),
 274         },{
 275             .driver   = "virtio-serial-pci",
 276             .property = "vectors",
 277             .value    = stringify(0),
 278         },{
 279             .driver   = "VGA",
 280             .property = "rombar",
 281             .value    = stringify(0),
 282         },{
 283             .driver   = "vmware-svga",
 284             .property = "rombar",
 285             .value    = stringify(0),
 286         },
 287         { /* end of list */ }
 288     }
 289 };
 290
 291 static QEMUMachine pc_machine_v0_11 = {
 292     .name = "pc-0.11",
 293     .desc = "Standard PC, qemu 0.11",
 294     .init = pc_init_pci,
 295     .max_cpus = 255,
 296     .compat_props = (GlobalProperty[]) {
 297         {
 298             .driver   = "virtio-blk-pci",
 299             .property = "vectors",
 300             .value    = stringify(0),
 301         },{
 302             .driver   = "virtio-serial-pci",
 303             .property = "max_ports",
 304             .value    = stringify(1),
 305         },{
 306             .driver   = "virtio-serial-pci",
 307             .property = "vectors",
 308             .value    = stringify(0),
 309         },{
 310             .driver   = "ide-drive",
 311             .property = "ver",
 312             .value    = "0.11",
 313         },{
 314             .driver   = "scsi-disk",
 315             .property = "ver",
 316             .value    = "0.11",
 317         },{
 318             .driver   = "PCI",
 319             .property = "rombar",
 320             .value    = stringify(0),
 321         },
 322         { /* end of list */ }
 323     }
 324 };
 325
 326 static QEMUMachine pc_machine_v0_10 = {
 327     .name = "pc-0.10",
 328     .desc = "Standard PC, qemu 0.10",
 329     .init = pc_init_pci,
 330     .max_cpus = 255,
 331     .compat_props = (GlobalProperty[]) {
 332         {
 333             .driver   = "virtio-blk-pci",
 334             .property = "class",
 335             .value    = stringify(PCI_CLASS_STORAGE_OTHER),
 336         },{
 337             .driver   = "virtio-serial-pci",
 338             .property = "class",
 339             .value    = stringify(PCI_CLASS_DISPLAY_OTHER),
 340         },{
 341             .driver   = "virtio-serial-pci",
 342             .property = "max_ports",
 343             .value    = stringify(1),
 344         },{
 345             .driver   = "virtio-serial-pci",
 346             .property = "vectors",
 347             .value    = stringify(0),
 348         },{
 349             .driver   = "virtio-net-pci",
 350             .property = "vectors",
 351             .value    = stringify(0),
 352         },{
 353             .driver   = "virtio-blk-pci",
 354             .property = "vectors",
 355             .value    = stringify(0),
 356         },{
 357             .driver   = "ide-drive",
 358             .property = "ver",
 359             .value    = "0.10",
 360         },{
 361             .driver   = "scsi-disk",
 362             .property = "ver",
 363             .value    = "0.10",
 364         },{
 365             .driver   = "PCI",
 366             .property = "rombar",
 367             .value    = stringify(0),
 368         },
 369         { /* end of list */ }
 370     },
 371 };
 372
 373 static QEMUMachine isapc_machine = {
 374     .name = "isapc",
 375     .desc = "ISA-only PC",
 376     .init = pc_init_isa,
 377     .max_cpus = 1,
 378 };
 379
 380 static void pc_machine_init(void)
 381 {
 382     qemu_register_machine(&pc_machine);
 383     qemu_register_machine(&pc_machine_v0_13);
 384     qemu_register_machine(&pc_machine_v0_12);
 385     qemu_register_machine(&pc_machine_v0_11);
 386     qemu_register_machine(&pc_machine_v0_10);
 387     qemu_register_machine(&isapc_machine);
 388 }
 389
 390 machine_init(pc_machine_init);