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 "hw/hw.h"
  27 #include "hw/ppc/ppc.h"
  28 #include "mac.h"
  29 #include "hw/input/adb.h"
  30 #include "hw/timer/m48t59.h"
  31 #include "sysemu/sysemu.h"
  32 #include "net/net.h"
  33 #include "hw/isa/isa.h"
  34 #include "hw/pci/pci.h"
  35 #include "hw/boards.h"
  36 #include "hw/nvram/fw_cfg.h"
  37 #include "hw/char/escc.h"
  38 #include "hw/ide.h"
  39 #include "hw/loader.h"
  40 #include "elf.h"
  41 #include "sysemu/kvm.h"
  42 #include "kvm_ppc.h"
  43 #include "sysemu/blockdev.h"
  44 #include "exec/address-spaces.h"
  45
  46 #define MAX_IDE_BUS 2
  47 #define CFG_ADDR 0xf0000510
  48 #define TBFREQ 16600000UL
  49
  50 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
  51 {
  52     fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  53     return 0;
  54 }
  55
  56
  57 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  58 {
  59     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  60 }
  61
  62 static hwaddr round_page(hwaddr addr)
  63 {
  64     return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
  65 }
  66
  67 static void ppc_heathrow_reset(void *opaque)
  68 {
  69     PowerPCCPU *cpu = opaque;
  70
  71     cpu_reset(CPU(cpu));
  72 }
  73
  74 static void ppc_heathrow_init(QEMUMachineInitArgs *args)
  75 {
  76     ram_addr_t ram_size = args->ram_size;
  77     const char *cpu_model = args->cpu_model;
  78     const char *kernel_filename = args->kernel_filename;
  79     const char *kernel_cmdline = args->kernel_cmdline;
  80     const char *initrd_filename = args->initrd_filename;
  81     const char *boot_device = args->boot_order;
  82     MemoryRegion *sysmem = get_system_memory();
  83     PowerPCCPU *cpu = NULL;
  84     CPUPPCState *env = NULL;
  85     char *filename;
  86     qemu_irq *pic, **heathrow_irqs;
  87     int linux_boot, i;
  88     MemoryRegion *ram = g_new(MemoryRegion, 1);
  89     MemoryRegion *bios = g_new(MemoryRegion, 1);
  90     MemoryRegion *isa = g_new(MemoryRegion, 1);
  91     uint32_t kernel_base, initrd_base, cmdline_base = 0;
  92     int32_t kernel_size, initrd_size;
  93     PCIBus *pci_bus;
  94     PCIDevice *macio;
  95     MACIOIDEState *macio_ide;
  96     DeviceState *dev;
  97     BusState *adb_bus;
  98     int bios_size;
  99     MemoryRegion *pic_mem;
 100     MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1);
 101     uint16_t ppc_boot_device;
 102     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 103     void *fw_cfg;
 104
 105     linux_boot = (kernel_filename != NULL);
 106
 107     /* init CPUs */
 108     if (cpu_model == NULL)
 109         cpu_model = "G3";
 110     for (i = 0; i < smp_cpus; i++) {
 111         cpu = cpu_ppc_init(cpu_model);
 112         if (cpu == NULL) {
 113             fprintf(stderr, "Unable to find PowerPC CPU definition\n");
 114             exit(1);
 115         }
 116         env = &cpu->env;
 117
 118         /* Set time-base frequency to 16.6 Mhz */
 119         cpu_ppc_tb_init(env,  TBFREQ);
 120         qemu_register_reset(ppc_heathrow_reset, cpu);
 121     }
 122
 123     /* allocate RAM */
 124     if (ram_size > (2047 << 20)) {
 125         fprintf(stderr,
 126                 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 127                 ((unsigned int)ram_size / (1 << 20)));
 128         exit(1);
 129     }
 130
 131     memory_region_init_ram(ram, NULL, "ppc_heathrow.ram", ram_size);
 132     vmstate_register_ram_global(ram);
 133     memory_region_add_subregion(sysmem, 0, ram);
 134
 135     /* allocate and load BIOS */
 136     memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE);
 137     vmstate_register_ram_global(bios);
 138     if (bios_name == NULL)
 139         bios_name = PROM_FILENAME;
 140     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 141     memory_region_set_readonly(bios, true);
 142     memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 143
 144     /* Load OpenBIOS (ELF) */
 145     if (filename) {
 146         bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 147                              1, ELF_MACHINE, 0);
 148         g_free(filename);
 149     } else {
 150         bios_size = -1;
 151     }
 152     if (bios_size < 0 || bios_size > BIOS_SIZE) {
 153         hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name);
 154         exit(1);
 155     }
 156
 157     if (linux_boot) {
 158         uint64_t lowaddr = 0;
 159         int bswap_needed;
 160
 161 #ifdef BSWAP_NEEDED
 162         bswap_needed = 1;
 163 #else
 164         bswap_needed = 0;
 165 #endif
 166         kernel_base = KERNEL_LOAD_ADDR;
 167         kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 168                                NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0);
 169         if (kernel_size < 0)
 170             kernel_size = load_aout(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(kernel_filename,
 175                                               kernel_base,
 176                                               ram_size - kernel_base);
 177         if (kernel_size < 0) {
 178             hw_error("qemu: could not load kernel '%s'\n",
 179                       kernel_filename);
 180             exit(1);
 181         }
 182         /* load initrd */
 183         if (initrd_filename) {
 184             initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
 185             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 186                                               ram_size - initrd_base);
 187             if (initrd_size < 0) {
 188                 hw_error("qemu: could not load initial ram disk '%s'\n",
 189                          initrd_filename);
 190                 exit(1);
 191             }
 192             cmdline_base = round_page(initrd_base + initrd_size);
 193         } else {
 194             initrd_base = 0;
 195             initrd_size = 0;
 196             cmdline_base = round_page(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             fprintf(stderr, "No valid boot device for G3 Beige machine\n");
 224             exit(1);
 225         }
 226     }
 227
 228     /* Register 2 MB of ISA IO space */
 229     memory_region_init_alias(isa, NULL, "isa_mmio",
 230                              get_system_io(), 0, 0x00200000);
 231     memory_region_add_subregion(sysmem, 0xfe000000, isa);
 232
 233     /* XXX: we register only 1 output pin for heathrow PIC */
 234     heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 235     heathrow_irqs[0] =
 236         g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 237     /* Connect the heathrow PIC outputs to the 6xx bus */
 238     for (i = 0; i < smp_cpus; i++) {
 239         switch (PPC_INPUT(env)) {
 240         case PPC_FLAGS_INPUT_6xx:
 241             heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 242             heathrow_irqs[i][0] =
 243                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 244             break;
 245         default:
 246             hw_error("Bus model not supported on OldWorld Mac machine\n");
 247         }
 248     }
 249
 250     /* init basic PC hardware */
 251     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 252         hw_error("Only 6xx bus is supported on heathrow machine\n");
 253     }
 254     pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
 255     pci_bus = pci_grackle_init(0xfec00000, pic,
 256                                get_system_memory(),
 257                                get_system_io());
 258     pci_vga_init(pci_bus);
 259
 260     escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
 261                                serial_hds[1], ESCC_CLOCK, 4);
 262     memory_region_init_alias(escc_bar, NULL, "escc-bar",
 263                              escc_mem, 0, memory_region_size(escc_mem));
 264
 265     for(i = 0; i < nb_nics; i++)
 266         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 267
 268
 269     ide_drive_get(hd, MAX_IDE_BUS);
 270
 271     macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
 272     dev = DEVICE(macio);
 273     qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 274     qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */
 275     qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
 276     qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
 277     qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
 278     macio_init(macio, pic_mem, escc_bar);
 279
 280     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 281                                                         "ide[0]"));
 282     macio_ide_init_drives(macio_ide, hd);
 283
 284     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 285                                                         "ide[1]"));
 286     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 287
 288     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 289     adb_bus = qdev_get_child_bus(dev, "adb.0");
 290     dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 291     qdev_init_nofail(dev);
 292     dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 293     qdev_init_nofail(dev);
 294
 295     if (usb_enabled(false)) {
 296         pci_create_simple(pci_bus, -1, "pci-ohci");
 297     }
 298
 299     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 300         graphic_depth = 15;
 301
 302     /* No PCI init: the BIOS will do it */
 303
 304     fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
 305     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 306     fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
 307     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 308     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 309     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 310     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 311     if (kernel_cmdline) {
 312         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 313         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 314     } else {
 315         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 316     }
 317     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 318     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 319     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 320
 321     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 322     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 323     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 324
 325     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 326     if (kvm_enabled()) {
 327 #ifdef CONFIG_KVM
 328         uint8_t *hypercall;
 329
 330         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq());
 331         hypercall = g_malloc(16);
 332         kvmppc_get_hypercall(env, hypercall, 16);
 333         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 334         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 335 #endif
 336     } else {
 337         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, TBFREQ);
 338     }
 339     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 340     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, 266000000);
 341
 342     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 343 }
 344
 345 static QEMUMachine heathrow_machine = {
 346     .name = "g3beige",
 347     .desc = "Heathrow based PowerMAC",
 348     .init = ppc_heathrow_init,
 349     .max_cpus = MAX_CPUS,
 350 #ifndef TARGET_PPC64
 351     .is_default = 1,
 352 #endif
 353     .default_boot_order = "cd", /* TOFIX "cad" when Mac floppy is implemented */
 354 };
 355
 356 static void heathrow_machine_init(void)
 357 {
 358     qemu_register_machine(&heathrow_machine);
 359 }
 360
 361 machine_init(heathrow_machine_init);