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 #include "qemu/osdep.h"
  27 #include "hw/hw.h"
  28 #include "hw/ppc/ppc.h"
  29 #include "mac.h"
  30 #include "hw/input/adb.h"
  31 #include "hw/timer/m48t59.h"
  32 #include "sysemu/sysemu.h"
  33 #include "net/net.h"
  34 #include "hw/isa/isa.h"
  35 #include "hw/pci/pci.h"
  36 #include "hw/boards.h"
  37 #include "hw/nvram/fw_cfg.h"
  38 #include "hw/char/escc.h"
  39 #include "hw/ide.h"
  40 #include "hw/loader.h"
  41 #include "elf.h"
  42 #include "qemu/error-report.h"
  43 #include "sysemu/kvm.h"
  44 #include "kvm_ppc.h"
  45 #include "sysemu/block-backend.h"
  46 #include "exec/address-spaces.h"
  47
  48 #define MAX_IDE_BUS 2
  49 #define CFG_ADDR 0xf0000510
  50 #define TBFREQ 16600000UL
  51 #define CLOCKFREQ 266000000UL
  52 #define BUSFREQ 66000000UL
  53
  54 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  55                             Error **errp)
  56 {
  57     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  58 }
  59
  60 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  61 {
  62     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  63 }
  64
  65 static hwaddr round_page(hwaddr addr)
  66 {
  67     return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
  68 }
  69
  70 static void ppc_heathrow_reset(void *opaque)
  71 {
  72     PowerPCCPU *cpu = opaque;
  73
  74     cpu_reset(CPU(cpu));
  75 }
  76
  77 static void ppc_heathrow_init(MachineState *machine)
  78 {
  79     ram_addr_t ram_size = machine->ram_size;
  80     const char *kernel_filename = machine->kernel_filename;
  81     const char *kernel_cmdline = machine->kernel_cmdline;
  82     const char *initrd_filename = machine->initrd_filename;
  83     const char *boot_device = machine->boot_order;
  84     MemoryRegion *sysmem = get_system_memory();
  85     PowerPCCPU *cpu = NULL;
  86     CPUPPCState *env = NULL;
  87     char *filename;
  88     qemu_irq *pic, **heathrow_irqs;
  89     int linux_boot, i;
  90     MemoryRegion *ram = g_new(MemoryRegion, 1);
  91     MemoryRegion *bios = g_new(MemoryRegion, 1);
  92     MemoryRegion *isa = g_new(MemoryRegion, 1);
  93     uint32_t kernel_base, initrd_base, cmdline_base = 0;
  94     int32_t kernel_size, initrd_size;
  95     PCIBus *pci_bus;
  96     PCIDevice *macio;
  97     MACIOIDEState *macio_ide;
  98     DeviceState *dev;
  99     BusState *adb_bus;
 100     int bios_size;
 101     MemoryRegion *pic_mem;
 102     MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1);
 103     uint16_t ppc_boot_device;
 104     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 105     void *fw_cfg;
 106     uint64_t tbfreq;
 107
 108     linux_boot = (kernel_filename != NULL);
 109
 110     /* init CPUs */
 111     if (machine->cpu_model == NULL)
 112         machine->cpu_model = "G3";
 113     for (i = 0; i < smp_cpus; i++) {
 114         cpu = cpu_ppc_init(machine->cpu_model);
 115         if (cpu == NULL) {
 116             fprintf(stderr, "Unable to find PowerPC CPU definition\n");
 117             exit(1);
 118         }
 119         env = &cpu->env;
 120
 121         /* Set time-base frequency to 16.6 Mhz */
 122         cpu_ppc_tb_init(env,  TBFREQ);
 123         qemu_register_reset(ppc_heathrow_reset, cpu);
 124     }
 125
 126     /* allocate RAM */
 127     if (ram_size > (2047 << 20)) {
 128         fprintf(stderr,
 129                 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 130                 ((unsigned int)ram_size / (1 << 20)));
 131         exit(1);
 132     }
 133
 134     memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 135                                          ram_size);
 136     memory_region_add_subregion(sysmem, 0, ram);
 137
 138     /* allocate and load BIOS */
 139     memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 140                            &error_fatal);
 141     vmstate_register_ram_global(bios);
 142
 143     if (bios_name == NULL)
 144         bios_name = PROM_FILENAME;
 145     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 146     memory_region_set_readonly(bios, true);
 147     memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 148
 149     /* Load OpenBIOS (ELF) */
 150     if (filename) {
 151         bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 152                              1, PPC_ELF_MACHINE, 0, 0);
 153         g_free(filename);
 154     } else {
 155         bios_size = -1;
 156     }
 157     if (bios_size < 0 || bios_size > BIOS_SIZE) {
 158         error_report("could not load PowerPC bios '%s'", bios_name);
 159         exit(1);
 160     }
 161
 162     if (linux_boot) {
 163         uint64_t lowaddr = 0;
 164         int bswap_needed;
 165
 166 #ifdef BSWAP_NEEDED
 167         bswap_needed = 1;
 168 #else
 169         bswap_needed = 0;
 170 #endif
 171         kernel_base = KERNEL_LOAD_ADDR;
 172         kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 173                                NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 174                                0, 0);
 175         if (kernel_size < 0)
 176             kernel_size = load_aout(kernel_filename, kernel_base,
 177                                     ram_size - kernel_base, bswap_needed,
 178                                     TARGET_PAGE_SIZE);
 179         if (kernel_size < 0)
 180             kernel_size = load_image_targphys(kernel_filename,
 181                                               kernel_base,
 182                                               ram_size - kernel_base);
 183         if (kernel_size < 0) {
 184             error_report("could not load kernel '%s'", kernel_filename);
 185             exit(1);
 186         }
 187         /* load initrd */
 188         if (initrd_filename) {
 189             initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
 190             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 191                                               ram_size - initrd_base);
 192             if (initrd_size < 0) {
 193                 error_report("could not load initial ram disk '%s'",
 194                              initrd_filename);
 195                 exit(1);
 196             }
 197             cmdline_base = round_page(initrd_base + initrd_size);
 198         } else {
 199             initrd_base = 0;
 200             initrd_size = 0;
 201             cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
 202         }
 203         ppc_boot_device = 'm';
 204     } else {
 205         kernel_base = 0;
 206         kernel_size = 0;
 207         initrd_base = 0;
 208         initrd_size = 0;
 209         ppc_boot_device = '\0';
 210         for (i = 0; boot_device[i] != '\0'; i++) {
 211             /* TOFIX: for now, the second IDE channel is not properly
 212              *        used by OHW. The Mac floppy disk are not emulated.
 213              *        For now, OHW cannot boot from the network.
 214              */
 215 #if 0
 216             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 217                 ppc_boot_device = boot_device[i];
 218                 break;
 219             }
 220 #else
 221             if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 222                 ppc_boot_device = boot_device[i];
 223                 break;
 224             }
 225 #endif
 226         }
 227         if (ppc_boot_device == '\0') {
 228             fprintf(stderr, "No valid boot device for G3 Beige machine\n");
 229             exit(1);
 230         }
 231     }
 232
 233     /* Register 2 MB of ISA IO space */
 234     memory_region_init_alias(isa, NULL, "isa_mmio",
 235                              get_system_io(), 0, 0x00200000);
 236     memory_region_add_subregion(sysmem, 0xfe000000, isa);
 237
 238     /* XXX: we register only 1 output pin for heathrow PIC */
 239     heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 240     heathrow_irqs[0] =
 241         g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 242     /* Connect the heathrow PIC outputs to the 6xx bus */
 243     for (i = 0; i < smp_cpus; i++) {
 244         switch (PPC_INPUT(env)) {
 245         case PPC_FLAGS_INPUT_6xx:
 246             heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 247             heathrow_irqs[i][0] =
 248                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 249             break;
 250         default:
 251             error_report("Bus model not supported on OldWorld Mac machine");
 252             exit(1);
 253         }
 254     }
 255
 256     /* Timebase Frequency */
 257     if (kvm_enabled()) {
 258         tbfreq = kvmppc_get_tbfreq();
 259     } else {
 260         tbfreq = TBFREQ;
 261     }
 262
 263     /* init basic PC hardware */
 264     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 265         error_report("Only 6xx bus is supported on heathrow machine");
 266         exit(1);
 267     }
 268     pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
 269     pci_bus = pci_grackle_init(0xfec00000, pic,
 270                                get_system_memory(),
 271                                get_system_io());
 272     pci_vga_init(pci_bus);
 273
 274     escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
 275                                serial_hds[1], ESCC_CLOCK, 4);
 276     memory_region_init_alias(escc_bar, NULL, "escc-bar",
 277                              escc_mem, 0, memory_region_size(escc_mem));
 278
 279     for(i = 0; i < nb_nics; i++)
 280         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 281
 282
 283     ide_drive_get(hd, ARRAY_SIZE(hd));
 284
 285     macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
 286     dev = DEVICE(macio);
 287     qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 288     qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */
 289     qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
 290     qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
 291     qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
 292     qdev_prop_set_uint64(dev, "frequency", tbfreq);
 293     macio_init(macio, pic_mem, escc_bar);
 294
 295     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 296                                                         "ide[0]"));
 297     macio_ide_init_drives(macio_ide, hd);
 298
 299     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 300                                                         "ide[1]"));
 301     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 302
 303     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 304     adb_bus = qdev_get_child_bus(dev, "adb.0");
 305     dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 306     qdev_init_nofail(dev);
 307     dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 308     qdev_init_nofail(dev);
 309
 310     if (usb_enabled()) {
 311         pci_create_simple(pci_bus, -1, "pci-ohci");
 312     }
 313
 314     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 315         graphic_depth = 15;
 316
 317     /* No PCI init: the BIOS will do it */
 318
 319     fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 320     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 321     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 322     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 323     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 324     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 325     if (kernel_cmdline) {
 326         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 327         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, 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 #ifdef CONFIG_KVM
 342         uint8_t *hypercall;
 343
 344         hypercall = g_malloc(16);
 345         kvmppc_get_hypercall(env, hypercall, 16);
 346         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 347         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 348 #endif
 349     }
 350     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 351     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 352     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 353     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 354
 355     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 356 }
 357
 358 static int heathrow_kvm_type(const char *arg)
 359 {
 360     /* Always force PR KVM */
 361     return 2;
 362 }
 363
 364 static void heathrow_machine_init(MachineClass *mc)
 365 {
 366     mc->desc = "Heathrow based PowerMAC";
 367     mc->init = ppc_heathrow_init;
 368     mc->max_cpus = MAX_CPUS;
 369 #ifndef TARGET_PPC64
 370     mc->is_default = 1;
 371 #endif
 372     /* TOFIX "cad" when Mac floppy is implemented */
 373     mc->default_boot_order = "cd";
 374     mc->kvm_type = heathrow_kvm_type;
 375 }
 376
 377 DEFINE_MACHINE("g3beige", heathrow_machine_init)