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/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 GRACKLE_BASE 0xfec00000
  61 #define PROM_BASE 0xffc00000
  62 #define PROM_SIZE (4 * MiB)
  63
  64 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  65                             Error **errp)
  66 {
  67     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  68 }
  69
  70 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  71 {
  72     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  73 }
  74
  75 static void ppc_heathrow_reset(void *opaque)
  76 {
  77     PowerPCCPU *cpu = opaque;
  78
  79     cpu_reset(CPU(cpu));
  80 }
  81
  82 static void ppc_heathrow_init(MachineState *machine)
  83 {
  84     ram_addr_t ram_size = machine->ram_size;
  85     const char *bios_name = machine->firmware ?: PROM_FILENAME;
  86     const char *boot_device = machine->boot_order;
  87     PowerPCCPU *cpu = NULL;
  88     CPUPPCState *env = NULL;
  89     char *filename;
  90     int i;
  91     MemoryRegion *bios = g_new(MemoryRegion, 1);
  92     uint32_t kernel_base, initrd_base, cmdline_base = 0;
  93     int32_t kernel_size, initrd_size;
  94     PCIBus *pci_bus;
  95     PCIDevice *macio;
  96     MACIOIDEState *macio_ide;
  97     ESCCState *escc;
  98     SysBusDevice *s;
  99     DeviceState *dev, *pic_dev, *grackle_dev;
 100     BusState *adb_bus;
 101     uint64_t bios_addr;
 102     int bios_size;
 103     unsigned int smp_cpus = machine->smp.cpus;
 104     uint16_t ppc_boot_device;
 105     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 106     void *fw_cfg;
 107     uint64_t tbfreq;
 108
 109     /* init CPUs */
 110     for (i = 0; i < smp_cpus; i++) {
 111         cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 112         env = &cpu->env;
 113
 114         /* Set time-base frequency to 16.6 Mhz */
 115         cpu_ppc_tb_init(env,  TBFREQ);
 116         qemu_register_reset(ppc_heathrow_reset, cpu);
 117     }
 118
 119     /* allocate RAM */
 120     if (ram_size > 2047 * MiB) {
 121         error_report("Too much memory for this machine: %" PRId64 " MB, "
 122                      "maximum 2047 MB", ram_size / MiB);
 123         exit(1);
 124     }
 125
 126     memory_region_add_subregion(get_system_memory(), 0, machine->ram);
 127
 128     /* allocate and load firmware ROM */
 129     memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE,
 130                            &error_fatal);
 131     memory_region_add_subregion(get_system_memory(), PROM_BASE, bios);
 132
 133     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 134     if (filename) {
 135         /* Load OpenBIOS (ELF) */
 136         bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr,
 137                              NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 138         /* Unfortunately, load_elf sign-extends reading elf32 */
 139         bios_addr = (uint32_t)bios_addr;
 140
 141         if (bios_size <= 0) {
 142             /* or if could not load ELF try loading a binary ROM image */
 143             bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE);
 144             bios_addr = PROM_BASE;
 145         }
 146         g_free(filename);
 147     } else {
 148         bios_size = -1;
 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;
 157
 158 #ifdef BSWAP_NEEDED
 159         bswap_needed = 1;
 160 #else
 161         bswap_needed = 0;
 162 #endif
 163         kernel_base = KERNEL_LOAD_ADDR;
 164         kernel_size = load_elf(machine->kernel_filename, NULL,
 165                                translate_kernel_address, NULL, NULL, NULL,
 166                                NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0);
 167         if (kernel_size < 0)
 168             kernel_size = load_aout(machine->kernel_filename, kernel_base,
 169                                     ram_size - kernel_base, bswap_needed,
 170                                     TARGET_PAGE_SIZE);
 171         if (kernel_size < 0)
 172             kernel_size = load_image_targphys(machine->kernel_filename,
 173                                               kernel_base,
 174                                               ram_size - kernel_base);
 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                                               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             initrd_base = 0;
 195             initrd_size = 0;
 196             cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 197         }
 198         ppc_boot_device = 'm';
 199     } else {
 200         kernel_base = 0;
 201         kernel_size = 0;
 202         initrd_base = 0;
 203         initrd_size = 0;
 204         ppc_boot_device = '\0';
 205         for (i = 0; boot_device[i] != '\0'; i++) {
 206             /* TOFIX: for now, the second IDE channel is not properly
 207              *        used by OHW. The Mac floppy disk are not emulated.
 208              *        For now, OHW cannot boot from the network.
 209              */
 210 #if 0
 211             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 212                 ppc_boot_device = boot_device[i];
 213                 break;
 214             }
 215 #else
 216             if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 217                 ppc_boot_device = boot_device[i];
 218                 break;
 219             }
 220 #endif
 221         }
 222         if (ppc_boot_device == '\0') {
 223             error_report("No valid boot device for G3 Beige machine");
 224             exit(1);
 225         }
 226     }
 227
 228     /* Timebase Frequency */
 229     if (kvm_enabled()) {
 230         tbfreq = kvmppc_get_tbfreq();
 231     } else {
 232         tbfreq = TBFREQ;
 233     }
 234
 235     /* Grackle PCI host bridge */
 236     grackle_dev = qdev_new(TYPE_GRACKLE_PCI_HOST_BRIDGE);
 237     qdev_prop_set_uint32(grackle_dev, "ofw-addr", 0x80000000);
 238     s = SYS_BUS_DEVICE(grackle_dev);
 239     sysbus_realize_and_unref(s, &error_fatal);
 240
 241     sysbus_mmio_map(s, 0, GRACKLE_BASE);
 242     sysbus_mmio_map(s, 1, GRACKLE_BASE + 0x200000);
 243     /* PCI hole */
 244     memory_region_add_subregion(get_system_memory(), 0x80000000ULL,
 245                                 sysbus_mmio_get_region(s, 2));
 246     /* Register 2 MB of ISA IO space */
 247     memory_region_add_subregion(get_system_memory(), 0xfe000000,
 248                                 sysbus_mmio_get_region(s, 3));
 249
 250     pci_bus = PCI_HOST_BRIDGE(grackle_dev)->bus;
 251
 252     /* MacIO */
 253     macio = pci_new(PCI_DEVFN(16, 0), TYPE_OLDWORLD_MACIO);
 254     dev = DEVICE(macio);
 255     qdev_prop_set_uint64(dev, "frequency", tbfreq);
 256
 257     escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc"));
 258     qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0));
 259     qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1));
 260
 261     pci_realize_and_unref(macio, pci_bus, &error_fatal);
 262
 263     pic_dev = DEVICE(object_resolve_path_component(OBJECT(macio), "pic"));
 264     for (i = 0; i < 4; i++) {
 265         qdev_connect_gpio_out(grackle_dev, i,
 266                               qdev_get_gpio_in(pic_dev, 0x15 + i));
 267     }
 268
 269     /* Connect the heathrow PIC outputs to the 6xx bus */
 270     for (i = 0; i < smp_cpus; i++) {
 271         switch (PPC_INPUT(env)) {
 272         case PPC_FLAGS_INPUT_6xx:
 273             /* XXX: we register only 1 output pin for heathrow PIC */
 274             qdev_connect_gpio_out(pic_dev, 0,
 275                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]);
 276             break;
 277         default:
 278             error_report("Bus model not supported on OldWorld Mac machine");
 279             exit(1);
 280         }
 281     }
 282
 283     pci_vga_init(pci_bus);
 284
 285     for (i = 0; i < nb_nics; i++) {
 286         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 287     }
 288
 289     /* MacIO IDE */
 290     ide_drive_get(hd, ARRAY_SIZE(hd));
 291     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 292                                                         "ide[0]"));
 293     macio_ide_init_drives(macio_ide, hd);
 294
 295     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 296                                                         "ide[1]"));
 297     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 298
 299     /* MacIO CUDA/ADB */
 300     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 301     adb_bus = qdev_get_child_bus(dev, "adb.0");
 302     dev = qdev_new(TYPE_ADB_KEYBOARD);
 303     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 304     dev = qdev_new(TYPE_ADB_MOUSE);
 305     qdev_realize_and_unref(dev, adb_bus, &error_fatal);
 306
 307     if (machine_usb(machine)) {
 308         pci_create_simple(pci_bus, -1, "pci-ohci");
 309     }
 310
 311     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 312         graphic_depth = 15;
 313
 314     /* No PCI init: the BIOS will do it */
 315
 316     dev = qdev_new(TYPE_FW_CFG_MEM);
 317     fw_cfg = FW_CFG(dev);
 318     qdev_prop_set_uint32(dev, "data_width", 1);
 319     qdev_prop_set_bit(dev, "dma_enabled", false);
 320     object_property_add_child(OBJECT(qdev_get_machine()), TYPE_FW_CFG,
 321                               OBJECT(fw_cfg));
 322     s = SYS_BUS_DEVICE(dev);
 323     sysbus_realize_and_unref(s, &error_fatal);
 324     sysbus_mmio_map(s, 0, CFG_ADDR);
 325     sysbus_mmio_map(s, 1, CFG_ADDR + 2);
 326
 327     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 328     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
 329     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 330     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 331     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 332     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 333     if (machine->kernel_cmdline) {
 334         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 335         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
 336                          machine->kernel_cmdline);
 337     } else {
 338         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 339     }
 340     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 341     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 342     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 343
 344     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 345     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 346     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 347
 348     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 349     if (kvm_enabled()) {
 350         uint8_t *hypercall;
 351
 352         hypercall = g_malloc(16);
 353         kvmppc_get_hypercall(env, hypercall, 16);
 354         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 355         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 356     }
 357     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 358     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 359     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 360     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 361
 362     /* MacOS NDRV VGA driver */
 363     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 364     if (filename) {
 365         gchar *ndrv_file;
 366         gsize ndrv_size;
 367
 368         if (g_file_get_contents(filename, &ndrv_file, &ndrv_size, NULL)) {
 369             fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 370         }
 371         g_free(filename);
 372     }
 373
 374     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 375 }
 376
 377 /*
 378  * Implementation of an interface to adjust firmware path
 379  * for the bootindex property handling.
 380  */
 381 static char *heathrow_fw_dev_path(FWPathProvider *p, BusState *bus,
 382                                   DeviceState *dev)
 383 {
 384     PCIDevice *pci;
 385     MACIOIDEState *macio_ide;
 386
 387     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-oldworld")) {
 388         pci = PCI_DEVICE(dev);
 389         return g_strdup_printf("mac-io@%x", PCI_SLOT(pci->devfn));
 390     }
 391
 392     if (!strcmp(object_get_typename(OBJECT(dev)), "macio-ide")) {
 393         macio_ide = MACIO_IDE(dev);
 394         return g_strdup_printf("ata-3@%x", macio_ide->addr);
 395     }
 396
 397     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-hd")) {
 398         return g_strdup("disk");
 399     }
 400
 401     if (!strcmp(object_get_typename(OBJECT(dev)), "ide-cd")) {
 402         return g_strdup("cdrom");
 403     }
 404
 405     if (!strcmp(object_get_typename(OBJECT(dev)), "virtio-blk-device")) {
 406         return g_strdup("disk");
 407     }
 408
 409     return NULL;
 410 }
 411
 412 static int heathrow_kvm_type(MachineState *machine, const char *arg)
 413 {
 414     /* Always force PR KVM */
 415     return 2;
 416 }
 417
 418 static void heathrow_class_init(ObjectClass *oc, void *data)
 419 {
 420     MachineClass *mc = MACHINE_CLASS(oc);
 421     FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc);
 422
 423     mc->desc = "Heathrow based PowerMAC";
 424     mc->init = ppc_heathrow_init;
 425     mc->block_default_type = IF_IDE;
 426     /* SMP is not supported currently */
 427     mc->max_cpus = 1;
 428 #ifndef TARGET_PPC64
 429     mc->is_default = true;
 430 #endif
 431     /* TOFIX "cad" when Mac floppy is implemented */
 432     mc->default_boot_order = "cd";
 433     mc->kvm_type = heathrow_kvm_type;
 434     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 435     mc->default_display = "std";
 436     mc->ignore_boot_device_suffixes = true;
 437     mc->default_ram_id = "ppc_heathrow.ram";
 438     fwc->get_dev_path = heathrow_fw_dev_path;
 439 }
 440
 441 static const TypeInfo ppc_heathrow_machine_info = {
 442     .name          = MACHINE_TYPE_NAME("g3beige"),
 443     .parent        = TYPE_MACHINE,
 444     .class_init    = heathrow_class_init,
 445     .interfaces = (InterfaceInfo[]) {
 446         { TYPE_FW_PATH_PROVIDER },
 447         { }
 448     },
 449 };
 450
 451 static void ppc_heathrow_register_types(void)
 452 {
 453     type_register_static(&ppc_heathrow_machine_info);
 454 }
 455
 456 type_init(ppc_heathrow_register_types);