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-common.h"
  29 #include "qemu/datadir.h"
  30 #include "qemu/units.h"
  31 #include "qapi/error.h"
  32 #include "hw/ppc/ppc.h"
  33 #include "hw/qdev-properties.h"
  34 #include "mac.h"
  35 #include "hw/input/adb.h"
  36 #include "sysemu/sysemu.h"
  37 #include "net/net.h"
  38 #include "hw/isa/isa.h"
  39 #include "hw/pci/pci.h"
  40 #include "hw/pci/pci_host.h"
  41 #include "hw/boards.h"
  42 #include "hw/nvram/fw_cfg.h"
  43 #include "hw/char/escc.h"
  44 #include "hw/misc/macio/macio.h"
  45 #include "hw/loader.h"
  46 #include "hw/fw-path-provider.h"
  47 #include "elf.h"
  48 #include "qemu/error-report.h"
  49 #include "sysemu/kvm.h"
  50 #include "sysemu/reset.h"
  51 #include "kvm_ppc.h"
  52 #include "exec/address-spaces.h"
  53
  54 #define MAX_IDE_BUS 2
  55 #define CFG_ADDR 0xf0000510
  56 #define TBFREQ 16600000UL
  57 #define CLOCKFREQ 266000000UL
  58 #define BUSFREQ 66000000UL
  59
  60 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  61
  62 #define GRACKLE_BASE 0xfec00000
  63 #define PROM_BASE 0xffc00000
  64 #define PROM_SIZE (4 * MiB)
  65
  66 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  67                             Error **errp)
  68 {
  69     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  70 }
  71
  72 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  73 {
  74     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  75 }
  76
  77 static void ppc_heathrow_reset(void *opaque)
  78 {
  79     PowerPCCPU *cpu = opaque;
  80
  81     cpu_reset(CPU(cpu));
  82 }
  83
  84 static void ppc_heathrow_init(MachineState *machine)
  85 {
  86     ram_addr_t ram_size = machine->ram_size;
  87     const char *bios_name = machine->firmware ?: PROM_FILENAME;
  88     const char *boot_device = machine->boot_order;
  89     PowerPCCPU *cpu = NULL;
  90     CPUPPCState *env = NULL;
  91     char *filename;
  92     int i;
  93     MemoryRegion *bios = g_new(MemoryRegion, 1);
  94     uint32_t kernel_base, initrd_base, cmdline_base = 0;
  95     int32_t kernel_size, initrd_size;
  96     PCIBus *pci_bus;
  97     PCIDevice *macio;
  98     MACIOIDEState *macio_ide;
  99     ESCCState *escc;
 100     SysBusDevice *s;
 101     DeviceState *dev, *pic_dev, *grackle_dev;
 102     BusState *adb_bus;
 103     uint64_t bios_addr;
 104     int bios_size;
 105     unsigned int smp_cpus = machine->smp.cpus;
 106     uint16_t ppc_boot_device;
 107     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 108     void *fw_cfg;
 109     uint64_t tbfreq;
 110
 111     /* init CPUs */
 112     for (i = 0; i < 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 (ram_size > 2047 * MiB) {
 123         error_report("Too much memory for this machine: %" PRId64 " MB, "
 124                      "maximum 2047 MB", 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     } else {
 150         bios_size = -1;
 151     }
 152     if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) {
 153         error_report("could not load PowerPC bios '%s'", bios_name);
 154         exit(1);
 155     }
 156
 157     if (machine->kernel_filename) {
 158         int bswap_needed;
 159
 160 #ifdef BSWAP_NEEDED
 161         bswap_needed = 1;
 162 #else
 163         bswap_needed = 0;
 164 #endif
 165         kernel_base = KERNEL_LOAD_ADDR;
 166         kernel_size = load_elf(machine->kernel_filename, NULL,
 167                                translate_kernel_address, NULL, NULL, NULL,
 168                                NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 169         if (kernel_size < 0)
 170             kernel_size = load_aout(machine->kernel_filename, kernel_base,
 171                                     ram_size - kernel_base, bswap_needed,
 172                                     TARGET_PAGE_SIZE);
 173         if (kernel_size < 0)
 174             kernel_size = load_image_targphys(machine->kernel_filename,
 175                                               kernel_base,
 176                                               ram_size - kernel_base);
 177         if (kernel_size < 0) {
 178             error_report("could not load kernel '%s'",
 179                          machine->kernel_filename);
 180             exit(1);
 181         }
 182         /* load initrd */
 183         if (machine->initrd_filename) {
 184             initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size +
 185                                             KERNEL_GAP);
 186             initrd_size = load_image_targphys(machine->initrd_filename,
 187                                               initrd_base,
 188                                               ram_size - initrd_base);
 189             if (initrd_size < 0) {
 190                 error_report("could not load initial ram disk '%s'",
 191                              machine->initrd_filename);
 192                 exit(1);
 193             }
 194             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 195         } else {
 196             initrd_base = 0;
 197             initrd_size = 0;
 198             cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 199         }
 200         ppc_boot_device = 'm';
 201     } else {
 202         kernel_base = 0;
 203         kernel_size = 0;
 204         initrd_base = 0;
 205         initrd_size = 0;
 206         ppc_boot_device = '\0';
 207         for (i = 0; boot_device[i] != '\0'; i++) {
 208             /* TOFIX: for now, the second IDE channel is not properly
 209              *        used by OHW. The Mac floppy disk are not emulated.
 210              *        For now, OHW cannot boot from the network.
 211              */
 212 #if 0
 213             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 214                 ppc_boot_device = boot_device[i];
 215                 break;
 216             }
 217 #else
 218             if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 219                 ppc_boot_device = boot_device[i];
 220                 break;
 221             }
 222 #endif
 223         }
 224         if (ppc_boot_device == '\0') {
 225             error_report("No valid boot device for G3 Beige machine");
 226             exit(1);
 227         }
 228     }
 229
 230     /* Timebase Frequency */
 231     if (kvm_enabled()) {
 232         tbfreq = kvmppc_get_tbfreq();
 233     } else {
 234         tbfreq = TBFREQ;
 235     }
 236
 237     /* Grackle PCI host bridge */
 238     grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 239     qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
 240     s = SYS_BUS_DEVICE(grackle_dev);
 241     sysbus_realize_and_unref(s, &error_fatal);
 242
 243     sysbus_mmio_map(s, 0, GRACKLE_BASE);
 244     sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 245     /* PCI hole */
 246     memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 247                                 sysbus_mmio_get_region(s, 2));
 248     /* Register 2 MB of ISA IO space */
 249     memory_region_add_subregion(get_system_memory(), 0xfe000000,
 250                                 sysbus_mmio_get_region(s, 3));
 251
 252     pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
 253
 254     /* MacIO */
 255     macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO);
 256     dev = DEVICE(macio);
 257     qdev_prop_set_uint64(dev, "frequency", tbfreq);
 258
 259     escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc"));
 260     qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0));
 261     qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1));
 262
 263     pci_realize_and_unref(macio, pci_bus, &error_fatal);
 264
 265     pic_dev = DEVICE(object_resolve_path_component(OBJECT(macio), "pic"));
 266     for (i = 0; i < 4; i++) {
 267         qdev_connect_gpio_out(grackle_dev, i,
 268                               qdev_get_gpio_in(pic_dev, 0x15 + i));
 269     }
 270
 271     /* Connect the heathrow PIC outputs to the 6xx bus */
 272     for (i = 0; i < smp_cpus; i++) {
 273         switch (PPC_INPUT(env)) {
 274         case PPC_FLAGS_INPUT_6xx:
 275             /* XXX: we register only 1 output pin for heathrow PIC */
 276             qdev_connect_gpio_out(pic_dev, 0,
 277                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 278             break;
 279         default:
 280             error_report("Bus model not supported on OldWorld Mac machine");
 281             exit(1);
 282         }
 283     }
 284
 285     pci_vga_init(pci_bus);
 286
 287     for (i = 0; i < nb_nics; i++) {
 288         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 289     }
 290
 291     /* MacIO IDE */
 292     ide_drive_get(hd, ARRAY_SIZE(hd));
 293     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 294                                                         "ide[0]"));
 295     macio_ide_init_drives(macio_ide, hd);
 296
 297     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 298                                                         "ide[1]"));
 299     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 300
 301     /* MacIO CUDA/ADB */
 302     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 303     adb_bus = qdev_get_child_bus(dev, "adb.0");
 304     dev = qdev_new(TYPE_ADB_KEYBOARD);
 305     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 306     dev = qdev_new(TYPE_ADB_MOUSE);
 307     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 308
 309     if (machine_usb(machine)) {
 310         pci_create_simple(pci_bus, -1, "pci-ohci");
 311     }
 312
 313     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 314         graphic_depth = 15;
 315
 316     /* No PCI init: the BIOS will do it */
 317
 318     dev = qdev_new(TYPE_FW_CFG_MEM);
 319     fw_cfg = FW_CFG(dev);
 320     qdev_prop_set_uint32(dev, "data_width", 1);
 321     qdev_prop_set_bit(dev, "dma_enabled", false);
 322     object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 323                               OBJECT(fw_cfg));
 324     s = SYS_BUS_DEVICE(dev);
 325     sysbus_realize_and_unref(s, &error_fatal);
 326     sysbus_mmio_map(s, 0, CFG_ADDR);
 327     sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 328
 329     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 330     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 331     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 332     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 333     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 334     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 335     if (machine->kernel_cmdline) {
 336         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 337         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 338                          machine->kernel_cmdline);
 339     } else {
 340         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 341     }
 342     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 343     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 344     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 345
 346     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 347     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 348     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 349
 350     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 351     if (kvm_enabled()) {
 352         uint8_t *hypercall;
 353
 354         hypercall = g_malloc(16);
 355         kvmppc_get_hypercall(env, hypercall, 16);
 356         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 357         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 358     }
 359     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 360     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 361     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 362     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 363
 364     /* MacOS NDRV VGA driver */
 365     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 366     if (filename) {
 367         gchar *ndrv_file;
 368         gsize ndrv_size;
 369
 370         if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 371             fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 372         }
 373         g_free(filename);
 374     }
 375
 376     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 377 }
 378
 379 /*
 380  * Implementation of an interface to adjust firmware path
 381  * for the bootindex property handling.
 382  */
 383 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 384                                   DeviceState *dev)
 385 {
 386     PCIDevice *pci;
 387     IDEBus *ide_bus;
 388     IDEState *ide_s;
 389     MACIOIDEState *macio_ide;
 390
 391     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 392         pci = PCI_DEVICE(dev);
 393         return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 394     }
 395
 396     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 397         macio_ide = MACIO_IDE(dev);
 398         return g_strdup_printf("ata-3@%x", macio_ide->addr);
 399     }
 400
 401     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-drive")) {
 402         ide_bus = IDE_BUS(qdev_get_parent_bus(dev));
 403         ide_s = idebus_active_if(ide_bus);
 404
 405         if (ide_s->drive_kind == IDE_CD) {
 406             return g_strdup("cdrom");
 407         }
 408
 409         return g_strdup("disk");
 410     }
 411
 412     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 413         return g_strdup("disk");
 414     }
 415
 416     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 417         return g_strdup("cdrom");
 418     }
 419
 420     if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 421         return g_strdup("disk");
 422     }
 423
 424     return NULL;
 425 }
 426
 427 static int heathrow_kvm_type(MachineState *machine, const char *arg)
 428 {
 429     /* Always force PR KVM */
 430     return 2;
 431 }
 432
 433 static void heathrow_class_init(ObjectClass *oc, void *data)
 434 {
 435     MachineClass *mc = MACHINE_CLASS(oc);
 436     FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 437
 438     mc->desc = "Heathrow based PowerMAC";
 439     mc->init = ppc_heathrow_init;
 440     mc->block_default_type = IF_IDE;
 441     mc->max_cpus = MAX_CPUS;
 442 #ifndef TARGET_PPC64
 443     mc->is_default = true;
 444 #endif
 445     /* TOFIX "cad" when Mac floppy is implemented */
 446     mc->default_boot_order = "cd";
 447     mc->kvm_type = heathrow_kvm_type;
 448     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 449     mc->default_display = "std";
 450     mc->ignore_boot_device_suffixes = true;
 451     mc->default_ram_id = "ppc_heathrow.ram";
 452     fwc->get_dev_path = heathrow_fw_dev_path;
 453 }
 454
 455 static const TypeInfo ppc_heathrow_machine_info = {
 456     .name          = MACHINE_TYPE_NAME("g3beige"),
 457     .parent        = TYPE_MACHINE,
 458     .class_init    = heathrow_class_init,
 459     .interfaces = (InterfaceInfo[]) {
 460         { TYPE_FW_PATH_PROVIDER },
 461         { }
 462     },
 463 };
 464
 465 static void ppc_heathrow_register_types(void)
 466 {
 467     type_register_static(&ppc_heathrow_machine_info);
 468 }
 469
 470 type_init(ppc_heathrow_register_types);