hw/ppc/mac_oldworld.c

   1
   2 /*
   3  * QEMU OldWorld PowerMac (currently ~G3 Beige) hardware System Emulator
   4  *
   5  * Copyright (c) 2004-2007 Fabrice Bellard
   6  * Copyright (c) 2007 Jocelyn Mayer
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  */
  26
  27 #include "qemu/osdep.h"
  28 #include "qemu/datadir.h"
  29 #include "qemu/units.h"
  30 #include "qapi/error.h"
  31 #include "hw/ppc/ppc.h"
  32 #include "hw/qdev-properties.h"
  33 #include "hw/boards.h"
  34 #include "hw/input/adb.h"
  35 #include "sysemu/sysemu.h"
  36 #include "net/net.h"
  37 #include "hw/isa/isa.h"
  38 #include "hw/pci/pci.h"
  39 #include "hw/pci/pci_host.h"
  40 #include "hw/pci-host/grackle.h"
  41 #include "hw/nvram/fw_cfg.h"
  42 #include "hw/char/escc.h"
  43 #include "hw/misc/macio/macio.h"
  44 #include "hw/loader.h"
  45 #include "hw/fw-path-provider.h"
  46 #include "elf.h"
  47 #include "qemu/error-report.h"
  48 #include "sysemu/kvm.h"
  49 #include "sysemu/reset.h"
  50 #include "kvm_ppc.h"
  51
  52 #define MAX_IDE_BUS 2
  53 #define CFG_ADDR 0xf0000510
  54 #define TBFREQ 16600000UL
  55 #define CLOCKFREQ 266000000UL
  56 #define BUSFREQ 66000000UL
  57
  58 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  59
  60 #define PROM_FILENAME "openbios-ppc"
  61 #define PROM_BASE 0xffc00000
  62 #define PROM_SIZE (4 * MiB)
  63
  64 #define KERNEL_LOAD_ADDR 0x01000000
  65 #define KERNEL_GAP       0x00100000
  66
  67 #define GRACKLE_BASE 0xfec00000
  68
  69 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  70                             Error **errp)
  71 {
  72     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  73 }
  74
  75 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  76 {
  77     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  78 }
  79
  80 static void ppc_heathrow_reset(void *opaque)
  81 {
  82     PowerPCCPU *cpu = opaque;
  83
  84     cpu_ppc_tb_reset(&cpu->env);
  85     cpu_reset(CPU(cpu));
  86 }
  87
  88 static void ppc_heathrow_init(MachineState *machine)
  89 {
  90     const char *bios_name = machine->firmware ?: PROM_FILENAME;
  91     MachineClass *mc = MACHINE_GET_CLASS(machine);
  92     PowerPCCPU *cpu = NULL;
  93     CPUPPCState *env = NULL;
  94     char *filename;
  95     int i, bios_size = -1;
  96     MemoryRegion *bios = g_new(MemoryRegion, 1);
  97     uint64_t bios_addr;
  98     uint32_t kernel_base = 0, initrd_base = 0, cmdline_base = 0;
  99     int32_t kernel_size = 0, initrd_size = 0;
 100     PCIBus *pci_bus;
 101     Object *macio;
 102     MACIOIDEState *macio_ide;
 103     SysBusDevice *s;
 104     DeviceState *dev, *pic_dev, *grackle_dev;
 105     BusState *adb_bus;
 106     uint16_t ppc_boot_device;
 107     DriveInfo *dinfo, *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 108     void *fw_cfg;
 109     uint64_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TBFREQ;
 110
 111     /* init CPUs */
 112     for (i = 0; i < machine->smp.cpus; i++) {
 113         cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 114         env = &cpu->env;
 115
 116         /* Set time-base frequency to 16.6 Mhz */
 117         cpu_ppc_tb_init(env,  TBFREQ);
 118         qemu_register_reset(ppc_heathrow_reset, cpu);
 119     }
 120
 121     /* allocate RAM */
 122     if (machine->ram_size > 2047 * MiB) {
 123         error_report("Too much memory for this machine: %" PRId64 " MB, "
 124                      "maximum 2047 MB", machine->ram_size / MiB);
 125         exit(1);
 126     }
 127
 128     memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 129
 130     /* allocate and load firmware ROM */
 131     memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE,
 132                            &error_fatal);
 133     memory_region_add_subregion(get_system_memory(), PROM_BASE, bios);
 134
 135     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 136     if (filename) {
 137         /* Load OpenBIOS (ELF) */
 138         bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
 139                              NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 140         /* Unfortunately, load_elf sign-extends reading elf32 */
 141         bios_addr = (uint32_t)bios_addr;
 142
 143         if (bios_size <= 0) {
 144             /* or if could not load ELF try loading a binary ROM image */
 145             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
 146             bios_addr = PROM_BASE;
 147         }
 148         g_free(filename);
 149     }
 150     if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
 151         error_report("could not load PowerPC bios '%s'", bios_name);
 152         exit(1);
 153     }
 154
 155     if (machine->kernel_filename) {
 156         int bswap_needed = 0;
 157
 158 #ifdef BSWAP_NEEDED
 159         bswap_needed = 1;
 160 #endif
 161         kernel_base = KERNEL_LOAD_ADDR;
 162         kernel_size = load_elf(machine->kernel_filename, NULL,
 163                                translate_kernel_address, NULL, NULL, NULL,
 164                                NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 165         if (kernel_size < 0) {
 166             kernel_size = load_aout(machine->kernel_filename, kernel_base,
 167                                     machine->ram_size - kernel_base,
 168                                     bswap_needed, TARGET_PAGE_SIZE);
 169         }
 170         if (kernel_size < 0) {
 171             kernel_size = load_image_targphys(machine->kernel_filename,
 172                                               kernel_base,
 173                                               machine->ram_size - kernel_base);
 174         }
 175         if (kernel_size < 0) {
 176             error_report("could not load kernel '%s'",
 177                          machine->kernel_filename);
 178             exit(1);
 179         }
 180         /* load initrd */
 181         if (machine->initrd_filename) {
 182             initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
 183                                             KERNEL_GAP);
 184             initrd_size = load_image_targphys(machine->initrd_filename,
 185                                               initrd_base,
 186                                               machine->ram_size - initrd_base);
 187             if (initrd_size < 0) {
 188                 error_report("could not load initial ram disk '%s'",
 189                              machine->initrd_filename);
 190                 exit(1);
 191             }
 192             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 193         } else {
 194             cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 195         }
 196         ppc_boot_device = 'm';
 197     } else {
 198         ppc_boot_device = '\0';
 199         for (i = 0; machine->boot_config.order[i] != '\0'; i++) {
 200             /*
 201              * TOFIX: for now, the second IDE channel is not properly
 202              *        used by OHW. The Mac floppy disk are not emulated.
 203              *        For now, OHW cannot boot from the network.
 204              */
 205 #if 0
 206             if (machine->boot_config.order[i] >= 'a' &&
 207                 machine->boot_config.order[i] <= 'f') {
 208                 ppc_boot_device = machine->boot_config.order[i];
 209                 break;
 210             }
 211 #else
 212             if (machine->boot_config.order[i] >= 'c' &&
 213                 machine->boot_config.order[i] <= 'd') {
 214                 ppc_boot_device = machine->boot_config.order[i];
 215                 break;
 216             }
 217 #endif
 218         }
 219         if (ppc_boot_device == '\0') {
 220             error_report("No valid boot device for G3 Beige machine");
 221             exit(1);
 222         }
 223     }
 224
 225     /* Grackle PCI host bridge */
 226     grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 227     qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
 228     s = SYS_BUS_DEVICE(grackle_dev);
 229     sysbus_realize_and_unref(s, &error_fatal);
 230
 231     sysbus_mmio_map(s, 0, GRACKLE_BASE);
 232     sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 233     /* PCI hole */
 234     memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 235                                 sysbus_mmio_get_region(s, 2));
 236     /* Register 2 MB of ISA IO space */
 237     memory_region_add_subregion(get_system_memory(), 0xfe000000,
 238                                 sysbus_mmio_get_region(s, 3));
 239
 240     pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
 241
 242     /* MacIO */
 243     macio = OBJECT(pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO));
 244     qdev_prop_set_uint64(DEVICE(macio), "frequency", tbfreq);
 245
 246     dev = DEVICE(object_resolve_path_component(macio, "escc"));
 247     qdev_prop_set_chr(dev, "chrA", serial_hd(0));
 248     qdev_prop_set_chr(dev, "chrB", serial_hd(1));
 249
 250     dinfo = drive_get(IF_MTD, 0, 0);
 251     if (dinfo) {
 252         dev = DEVICE(object_resolve_path_component(macio, "nvram"));
 253         qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo));
 254     }
 255
 256     pci_realize_and_unref(PCI_DEVICE(macio), pci_bus, &error_fatal);
 257
 258     pic_dev = DEVICE(object_resolve_path_component(macio, "pic"));
 259     for (i = 0; i < 4; i++) {
 260         qdev_connect_gpio_out(grackle_dev, i,
 261                               qdev_get_gpio_in(pic_dev, 0x15 + i));
 262     }
 263
 264     /* Connect the heathrow PIC outputs to the 6xx bus */
 265     for (i = 0; i < machine->smp.cpus; i++) {
 266         switch (PPC_INPUT(env)) {
 267         case PPC_FLAGS_INPUT_6xx:
 268             /* XXX: we register only 1 output pin for heathrow PIC */
 269             qdev_connect_gpio_out(pic_dev, 0,
 270                               qdev_get_gpio_in(DEVICE(cpu), PPC6xx_INPUT_INT));
 271             break;
 272         default:
 273             error_report("Bus model not supported on OldWorld Mac machine");
 274             exit(1);
 275         }
 276     }
 277
 278     pci_vga_init(pci_bus);
 279
 280     pci_init_nic_devices(pci_bus, mc->default_nic);
 281
 282     /* MacIO IDE */
 283     ide_drive_get(hd, ARRAY_SIZE(hd));
 284     macio_ide = MACIO_IDE(object_resolve_path_component(macio, "ide[0]"));
 285     macio_ide_init_drives(macio_ide, hd);
 286
 287     macio_ide = MACIO_IDE(object_resolve_path_component(macio, "ide[1]"));
 288     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 289
 290     /* MacIO CUDA/ADB */
 291     dev = DEVICE(object_resolve_path_component(macio, "cuda"));
 292     adb_bus = qdev_get_child_bus(dev, "adb.0");
 293     dev = qdev_new(TYPE_ADB_KEYBOARD);
 294     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 295     dev = qdev_new(TYPE_ADB_MOUSE);
 296     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 297
 298     if (machine_usb(machine)) {
 299         pci_create_simple(pci_bus, -1, "pci-ohci");
 300     }
 301
 302     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) {
 303         graphic_depth = 15;
 304     }
 305
 306     /* No PCI init: the BIOS will do it */
 307
 308     dev = qdev_new(TYPE_FW_CFG_MEM);
 309     fw_cfg = FW_CFG(dev);
 310     qdev_prop_set_uint32(dev, "data_width", 1);
 311     qdev_prop_set_bit(dev, "dma_enabled", false);
 312     object_property_add_child(OBJECT(machine), TYPE_FW_CFG, OBJECT(fw_cfg));
 313     s = SYS_BUS_DEVICE(dev);
 314     sysbus_realize_and_unref(s, &error_fatal);
 315     sysbus_mmio_map(s, 0, CFG_ADDR);
 316     sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 317
 318     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)machine->smp.cpus);
 319     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 320     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size);
 321     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 322     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 323     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 324     if (machine->kernel_cmdline) {
 325         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 326         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 327                          machine->kernel_cmdline);
 328     } else {
 329         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 330     }
 331     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 332     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 333     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 334
 335     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 336     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 337     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 338
 339     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 340     if (kvm_enabled()) {
 341         uint8_t *hypercall;
 342
 343         hypercall = g_malloc(16);
 344         kvmppc_get_hypercall(env, hypercall, 16);
 345         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 346         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 347     }
 348     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 349     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 350     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 351     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 352
 353     /* MacOS NDRV VGA driver */
 354     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 355     if (filename) {
 356         gchar *ndrv_file;
 357         gsize ndrv_size;
 358
 359         if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 360             fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 361         }
 362         g_free(filename);
 363     }
 364
 365     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 366 }
 367
 368 /*
 369  * Implementation of an interface to adjust firmware path
 370  * for the bootindex property handling.
 371  */
 372 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 373                                   DeviceState *dev)
 374 {
 375     PCIDevice *pci;
 376     MACIOIDEState *macio_ide;
 377
 378     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 379         pci = PCI_DEVICE(dev);
 380         return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 381     }
 382
 383     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 384         macio_ide = MACIO_IDE(dev);
 385         return g_strdup_printf("ata-3@%x", macio_ide->addr);
 386     }
 387
 388     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 389         return g_strdup("disk");
 390     }
 391
 392     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 393         return g_strdup("cdrom");
 394     }
 395
 396     if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 397         return g_strdup("disk");
 398     }
 399
 400     return NULL;
 401 }
 402
 403 static int heathrow_kvm_type(MachineState *machine, const char *arg)
 404 {
 405     /* Always force PR KVM */
 406     return 2;
 407 }
 408
 409 static void heathrow_class_init(ObjectClass *oc, void *data)
 410 {
 411     MachineClass *mc = MACHINE_CLASS(oc);
 412     FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 413
 414     mc->desc = "Heathrow based PowerMAC";
 415     mc->init = ppc_heathrow_init;
 416     mc->block_default_type = IF_IDE;
 417     /* SMP is not supported currently */
 418     mc->max_cpus = 1;
 419 #ifndef TARGET_PPC64
 420     mc->is_default = true;
 421 #endif
 422     /* TOFIX "cad" when Mac floppy is implemented */
 423     mc->default_boot_order = "cd";
 424     mc->kvm_type = heathrow_kvm_type;
 425     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 426     mc->default_display = "std";
 427     mc->default_nic = "ne2k_pci";
 428     mc->ignore_boot_device_suffixes = true;
 429     mc->default_ram_id = "ppc_heathrow.ram";
 430     fwc->get_dev_path = heathrow_fw_dev_path;
 431 }
 432
 433 static const TypeInfo ppc_heathrow_machine_info = {
 434     .name          = MACHINE_TYPE_NAME("g3beige"),
 435     .parent        = TYPE_MACHINE,
 436     .class_init    = heathrow_class_init,
 437     .interfaces = (InterfaceInfo[]) {
 438         { TYPE_FW_PATH_PROVIDER },
 439         { }
 440     },
 441 };
 442
 443 static void ppc_heathrow_register_types(void)
 444 {
 445     type_register_static(&ppc_heathrow_machine_info);
 446 }
 447
 448 type_init(ppc_heathrow_register_types);