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 "qapi/error.h"
  28 #include "hw/hw.h"
  29 #include "hw/ppc/ppc.h"
  30 #include "mac.h"
  31 #include "hw/input/adb.h"
  32 #include "hw/timer/m48t59.h"
  33 #include "sysemu/sysemu.h"
  34 #include "net/net.h"
  35 #include "hw/isa/isa.h"
  36 #include "hw/pci/pci.h"
  37 #include "hw/boards.h"
  38 #include "hw/nvram/fw_cfg.h"
  39 #include "hw/char/escc.h"
  40 #include "hw/ide.h"
  41 #include "hw/loader.h"
  42 #include "elf.h"
  43 #include "qemu/error-report.h"
  44 #include "sysemu/kvm.h"
  45 #include "kvm_ppc.h"
  46 #include "sysemu/block-backend.h"
  47 #include "exec/address-spaces.h"
  48 #include "qemu/cutils.h"
  49
  50 #define MAX_IDE_BUS 2
  51 #define CFG_ADDR 0xf0000510
  52 #define TBFREQ 16600000UL
  53 #define CLOCKFREQ 266000000UL
  54 #define BUSFREQ 66000000UL
  55
  56 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  57
  58 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  59                             Error **errp)
  60 {
  61     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  62 }
  63
  64 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  65 {
  66     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  67 }
  68
  69 static hwaddr round_page(hwaddr addr)
  70 {
  71     return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;
  72 }
  73
  74 static void ppc_heathrow_reset(void *opaque)
  75 {
  76     PowerPCCPU *cpu = opaque;
  77
  78     cpu_reset(CPU(cpu));
  79 }
  80
  81 static void ppc_heathrow_init(MachineState *machine)
  82 {
  83     ram_addr_t ram_size = machine->ram_size;
  84     const char *kernel_filename = machine->kernel_filename;
  85     const char *kernel_cmdline = machine->kernel_cmdline;
  86     const char *initrd_filename = machine->initrd_filename;
  87     const char *boot_device = machine->boot_order;
  88     MemoryRegion *sysmem = get_system_memory();
  89     PowerPCCPU *cpu = NULL;
  90     CPUPPCState *env = NULL;
  91     char *filename;
  92     qemu_irq *pic, **heathrow_irqs;
  93     int linux_boot, i;
  94     MemoryRegion *ram = g_new(MemoryRegion, 1);
  95     MemoryRegion *bios = g_new(MemoryRegion, 1);
  96     MemoryRegion *isa = g_new(MemoryRegion, 1);
  97     uint32_t kernel_base, initrd_base, cmdline_base = 0;
  98     int32_t kernel_size, initrd_size;
  99     PCIBus *pci_bus;
 100     PCIDevice *macio;
 101     MACIOIDEState *macio_ide;
 102     DeviceState *dev;
 103     BusState *adb_bus;
 104     int bios_size, ndrv_size;
 105     uint8_t *ndrv_file;
 106     MemoryRegion *pic_mem;
 107     MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1);
 108     uint16_t ppc_boot_device;
 109     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 110     void *fw_cfg;
 111     uint64_t tbfreq;
 112
 113     linux_boot = (kernel_filename != NULL);
 114
 115     /* init CPUs */
 116     if (machine->cpu_model == NULL)
 117         machine->cpu_model = "G3";
 118     for (i = 0; i < smp_cpus; i++) {
 119         cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
 120                                            machine->cpu_model));
 121         if (cpu == NULL) {
 122             fprintf(stderr, "Unable to find PowerPC CPU definition\n");
 123             exit(1);
 124         }
 125         env = &cpu->env;
 126
 127         /* Set time-base frequency to 16.6 Mhz */
 128         cpu_ppc_tb_init(env,  TBFREQ);
 129         qemu_register_reset(ppc_heathrow_reset, cpu);
 130     }
 131
 132     /* allocate RAM */
 133     if (ram_size > (2047 << 20)) {
 134         fprintf(stderr,
 135                 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 136                 ((unsigned int)ram_size / (1 << 20)));
 137         exit(1);
 138     }
 139
 140     memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 141                                          ram_size);
 142     memory_region_add_subregion(sysmem, 0, ram);
 143
 144     /* allocate and load BIOS */
 145     memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 146                            &error_fatal);
 147
 148     if (bios_name == NULL)
 149         bios_name = PROM_FILENAME;
 150     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 151     memory_region_set_readonly(bios, true);
 152     memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 153
 154     /* Load OpenBIOS (ELF) */
 155     if (filename) {
 156         bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 157                              1, PPC_ELF_MACHINE, 0, 0);
 158         g_free(filename);
 159     } else {
 160         bios_size = -1;
 161     }
 162     if (bios_size < 0 || bios_size > BIOS_SIZE) {
 163         error_report("could not load PowerPC bios '%s'", bios_name);
 164         exit(1);
 165     }
 166
 167     if (linux_boot) {
 168         uint64_t lowaddr = 0;
 169         int bswap_needed;
 170
 171 #ifdef BSWAP_NEEDED
 172         bswap_needed = 1;
 173 #else
 174         bswap_needed = 0;
 175 #endif
 176         kernel_base = KERNEL_LOAD_ADDR;
 177         kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 178                                NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 179                                0, 0);
 180         if (kernel_size < 0)
 181             kernel_size = load_aout(kernel_filename, kernel_base,
 182                                     ram_size - kernel_base, bswap_needed,
 183                                     TARGET_PAGE_SIZE);
 184         if (kernel_size < 0)
 185             kernel_size = load_image_targphys(kernel_filename,
 186                                               kernel_base,
 187                                               ram_size - kernel_base);
 188         if (kernel_size < 0) {
 189             error_report("could not load kernel '%s'", kernel_filename);
 190             exit(1);
 191         }
 192         /* load initrd */
 193         if (initrd_filename) {
 194             initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
 195             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 196                                               ram_size - initrd_base);
 197             if (initrd_size < 0) {
 198                 error_report("could not load initial ram disk '%s'",
 199                              initrd_filename);
 200                 exit(1);
 201             }
 202             cmdline_base = round_page(initrd_base + initrd_size);
 203         } else {
 204             initrd_base = 0;
 205             initrd_size = 0;
 206             cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP);
 207         }
 208         ppc_boot_device = 'm';
 209     } else {
 210         kernel_base = 0;
 211         kernel_size = 0;
 212         initrd_base = 0;
 213         initrd_size = 0;
 214         ppc_boot_device = '\0';
 215         for (i = 0; boot_device[i] != '\0'; i++) {
 216             /* TOFIX: for now, the second IDE channel is not properly
 217              *        used by OHW. The Mac floppy disk are not emulated.
 218              *        For now, OHW cannot boot from the network.
 219              */
 220 #if 0
 221             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 222                 ppc_boot_device = boot_device[i];
 223                 break;
 224             }
 225 #else
 226             if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 227                 ppc_boot_device = boot_device[i];
 228                 break;
 229             }
 230 #endif
 231         }
 232         if (ppc_boot_device == '\0') {
 233             fprintf(stderr, "No valid boot device for G3 Beige machine\n");
 234             exit(1);
 235         }
 236     }
 237
 238     /* Register 2 MB of ISA IO space */
 239     memory_region_init_alias(isa, NULL, "isa_mmio",
 240                              get_system_io(), 0, 0x00200000);
 241     memory_region_add_subregion(sysmem, 0xfe000000, isa);
 242
 243     /* XXX: we register only 1 output pin for heathrow PIC */
 244     heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 245     heathrow_irqs[0] =
 246         g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 247     /* Connect the heathrow PIC outputs to the 6xx bus */
 248     for (i = 0; i < smp_cpus; i++) {
 249         switch (PPC_INPUT(env)) {
 250         case PPC_FLAGS_INPUT_6xx:
 251             heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 252             heathrow_irqs[i][0] =
 253                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 254             break;
 255         default:
 256             error_report("Bus model not supported on OldWorld Mac machine");
 257             exit(1);
 258         }
 259     }
 260
 261     /* Timebase Frequency */
 262     if (kvm_enabled()) {
 263         tbfreq = kvmppc_get_tbfreq();
 264     } else {
 265         tbfreq = TBFREQ;
 266     }
 267
 268     /* init basic PC hardware */
 269     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 270         error_report("Only 6xx bus is supported on heathrow machine");
 271         exit(1);
 272     }
 273     pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs);
 274     pci_bus = pci_grackle_init(0xfec00000, pic,
 275                                get_system_memory(),
 276                                get_system_io());
 277     pci_vga_init(pci_bus);
 278
 279     escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0],
 280                                serial_hds[1], ESCC_CLOCK, 4);
 281     memory_region_init_alias(escc_bar, NULL, "escc-bar",
 282                              escc_mem, 0, memory_region_size(escc_mem));
 283
 284     for(i = 0; i < nb_nics; i++)
 285         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 286
 287
 288     ide_drive_get(hd, ARRAY_SIZE(hd));
 289
 290     macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
 291     dev = DEVICE(macio);
 292     qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 293     qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */
 294     qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */
 295     qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */
 296     qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */
 297     qdev_prop_set_uint64(dev, "frequency", tbfreq);
 298     macio_init(macio, pic_mem, escc_bar);
 299
 300     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 301                                                         "ide[0]"));
 302     macio_ide_init_drives(macio_ide, hd);
 303
 304     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 305                                                         "ide[1]"));
 306     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 307
 308     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 309     adb_bus = qdev_get_child_bus(dev, "adb.0");
 310     dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 311     qdev_init_nofail(dev);
 312     dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 313     qdev_init_nofail(dev);
 314
 315     if (machine_usb(machine)) {
 316         pci_create_simple(pci_bus, -1, "pci-ohci");
 317     }
 318
 319     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 320         graphic_depth = 15;
 321
 322     /* No PCI init: the BIOS will do it */
 323
 324     fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 325     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 326     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 327     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 328     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 329     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 330     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 331     if (kernel_cmdline) {
 332         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 333         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 334     } else {
 335         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 336     }
 337     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 338     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 339     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 340
 341     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 342     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 343     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 344
 345     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 346     if (kvm_enabled()) {
 347 #ifdef CONFIG_KVM
 348         uint8_t *hypercall;
 349
 350         hypercall = g_malloc(16);
 351         kvmppc_get_hypercall(env, hypercall, 16);
 352         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 353         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 354 #endif
 355     }
 356     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 357     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 358     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 359     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 360
 361     /* MacOS NDRV VGA driver */
 362     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 363     if (filename) {
 364         ndrv_size = get_image_size(filename);
 365         if (ndrv_size != -1) {
 366             ndrv_file = g_malloc(ndrv_size);
 367             ndrv_size = load_image(filename, ndrv_file);
 368
 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 static int heathrow_kvm_type(const char *arg)
 378 {
 379     /* Always force PR KVM */
 380     return 2;
 381 }
 382
 383 static void heathrow_machine_init(MachineClass *mc)
 384 {
 385     mc->desc = "Heathrow based PowerMAC";
 386     mc->init = ppc_heathrow_init;
 387     mc->block_default_type = IF_IDE;
 388     mc->max_cpus = MAX_CPUS;
 389 #ifndef TARGET_PPC64
 390     mc->is_default = 1;
 391 #endif
 392     /* TOFIX "cad" when Mac floppy is implemented */
 393     mc->default_boot_order = "cd";
 394     mc->kvm_type = heathrow_kvm_type;
 395 }
 396
 397 DEFINE_MACHINE("g3beige", heathrow_machine_init)