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/misc/macio/macio.h"
  41 #include "hw/ide.h"
  42 #include "hw/loader.h"
  43 #include "elf.h"
  44 #include "qemu/error-report.h"
  45 #include "sysemu/kvm.h"
  46 #include "kvm_ppc.h"
  47 #include "sysemu/block-backend.h"
  48 #include "exec/address-spaces.h"
  49 #include "qemu/cutils.h"
  50
  51 #define MAX_IDE_BUS 2
  52 #define CFG_ADDR 0xf0000510
  53 #define TBFREQ 16600000UL
  54 #define CLOCKFREQ 266000000UL
  55 #define BUSFREQ 66000000UL
  56
  57 #define NDRV_VGA_FILENAME "qemu_vga.ndrv"
  58
  59 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
  60                             Error **errp)
  61 {
  62     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  63 }
  64
  65 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
  66 {
  67     return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR;
  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, *pic_dev;
  99     SysBusDevice *sbd;
 100     BusState *adb_bus;
 101     int bios_size, ndrv_size;
 102     uint8_t *ndrv_file;
 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     for (i = 0; i < smp_cpus; i++) {
 112         cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
 113         env = &cpu->env;
 114
 115         /* Set time-base frequency to 16.6 Mhz */
 116         cpu_ppc_tb_init(env,  TBFREQ);
 117         qemu_register_reset(ppc_heathrow_reset, cpu);
 118     }
 119
 120     /* allocate RAM */
 121     if (ram_size > (2047 << 20)) {
 122         fprintf(stderr,
 123                 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
 124                 ((unsigned int)ram_size / (1 << 20)));
 125         exit(1);
 126     }
 127
 128     memory_region_allocate_system_memory(ram, NULL, "ppc_heathrow.ram",
 129                                          ram_size);
 130     memory_region_add_subregion(sysmem, 0, ram);
 131
 132     /* allocate and load BIOS */
 133     memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE,
 134                            &error_fatal);
 135
 136     if (bios_name == NULL)
 137         bios_name = PROM_FILENAME;
 138     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 139     memory_region_set_readonly(bios, true);
 140     memory_region_add_subregion(sysmem, PROM_ADDR, bios);
 141
 142     /* Load OpenBIOS (ELF) */
 143     if (filename) {
 144         bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL,
 145                              1, PPC_ELF_MACHINE, 0, 0);
 146         g_free(filename);
 147     } else {
 148         bios_size = -1;
 149     }
 150     if (bios_size < 0 || bios_size > BIOS_SIZE) {
 151         error_report("could not load PowerPC bios '%s'", bios_name);
 152         exit(1);
 153     }
 154
 155     if (linux_boot) {
 156         uint64_t lowaddr = 0;
 157         int bswap_needed;
 158
 159 #ifdef BSWAP_NEEDED
 160         bswap_needed = 1;
 161 #else
 162         bswap_needed = 0;
 163 #endif
 164         kernel_base = KERNEL_LOAD_ADDR;
 165         kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
 166                                NULL, &lowaddr, NULL, 1, PPC_ELF_MACHINE,
 167                                0, 0);
 168         if (kernel_size < 0)
 169             kernel_size = load_aout(kernel_filename, kernel_base,
 170                                     ram_size - kernel_base, bswap_needed,
 171                                     TARGET_PAGE_SIZE);
 172         if (kernel_size < 0)
 173             kernel_size = load_image_targphys(kernel_filename,
 174                                               kernel_base,
 175                                               ram_size - kernel_base);
 176         if (kernel_size < 0) {
 177             error_report("could not load kernel '%s'", kernel_filename);
 178             exit(1);
 179         }
 180         /* load initrd */
 181         if (initrd_filename) {
 182             initrd_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 183             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 184                                               ram_size - initrd_base);
 185             if (initrd_size < 0) {
 186                 error_report("could not load initial ram disk '%s'",
 187                              initrd_filename);
 188                 exit(1);
 189             }
 190             cmdline_base = TARGET_PAGE_ALIGN(initrd_base + initrd_size);
 191         } else {
 192             initrd_base = 0;
 193             initrd_size = 0;
 194             cmdline_base = TARGET_PAGE_ALIGN(kernel_base + kernel_size + KERNEL_GAP);
 195         }
 196         ppc_boot_device = 'm';
 197     } else {
 198         kernel_base = 0;
 199         kernel_size = 0;
 200         initrd_base = 0;
 201         initrd_size = 0;
 202         ppc_boot_device = '\0';
 203         for (i = 0; boot_device[i] != '\0'; i++) {
 204             /* TOFIX: for now, the second IDE channel is not properly
 205              *        used by OHW. The Mac floppy disk are not emulated.
 206              *        For now, OHW cannot boot from the network.
 207              */
 208 #if 0
 209             if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
 210                 ppc_boot_device = boot_device[i];
 211                 break;
 212             }
 213 #else
 214             if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
 215                 ppc_boot_device = boot_device[i];
 216                 break;
 217             }
 218 #endif
 219         }
 220         if (ppc_boot_device == '\0') {
 221             error_report("No valid boot device for G3 Beige machine");
 222             exit(1);
 223         }
 224     }
 225
 226     /* Register 2 MB of ISA IO space */
 227     memory_region_init_alias(isa, NULL, "isa_mmio",
 228                              get_system_io(), 0, 0x00200000);
 229     memory_region_add_subregion(sysmem, 0xfe000000, isa);
 230
 231     /* XXX: we register only 1 output pin for heathrow PIC */
 232     heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 233     heathrow_irqs[0] =
 234         g_malloc0(smp_cpus * sizeof(qemu_irq) * 1);
 235     /* Connect the heathrow PIC outputs to the 6xx bus */
 236     for (i = 0; i < smp_cpus; i++) {
 237         switch (PPC_INPUT(env)) {
 238         case PPC_FLAGS_INPUT_6xx:
 239             heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
 240             heathrow_irqs[i][0] =
 241                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 242             break;
 243         default:
 244             error_report("Bus model not supported on OldWorld Mac machine");
 245             exit(1);
 246         }
 247     }
 248
 249     /* Timebase Frequency */
 250     if (kvm_enabled()) {
 251         tbfreq = kvmppc_get_tbfreq();
 252     } else {
 253         tbfreq = TBFREQ;
 254     }
 255
 256     /* init basic PC hardware */
 257     if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
 258         error_report("Only 6xx bus is supported on heathrow machine");
 259         exit(1);
 260     }
 261     pic_dev = heathrow_pic_init(1, heathrow_irqs, &pic);
 262     pci_bus = pci_grackle_init(0xfec00000, pic,
 263                                get_system_memory(),
 264                                get_system_io());
 265     pci_vga_init(pci_bus);
 266
 267     for (i = 0; i < nb_nics; i++) {
 268         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 269     }
 270
 271     ide_drive_get(hd, ARRAY_SIZE(hd));
 272
 273     /* MacIO */
 274     macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
 275     dev = DEVICE(macio);
 276     qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
 277     qdev_connect_gpio_out(dev, 1, pic[0x10]); /* ESCC-B */
 278     qdev_connect_gpio_out(dev, 2, pic[0x0F]); /* ESCC-A */
 279     qdev_connect_gpio_out(dev, 3, pic[0x0D]); /* IDE-0 */
 280     qdev_connect_gpio_out(dev, 4, pic[0x02]); /* IDE-0 DMA */
 281     qdev_connect_gpio_out(dev, 5, pic[0x0E]); /* IDE-1 */
 282     qdev_connect_gpio_out(dev, 6, pic[0x03]); /* IDE-1 DMA */
 283     qdev_prop_set_uint64(dev, "frequency", tbfreq);
 284     sbd = SYS_BUS_DEVICE(pic_dev);
 285     macio_init(macio, sysbus_mmio_get_region(sbd, 0));
 286
 287     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 288                                                         "ide[0]"));
 289     macio_ide_init_drives(macio_ide, hd);
 290
 291     macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
 292                                                         "ide[1]"));
 293     macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]);
 294
 295     dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda"));
 296     adb_bus = qdev_get_child_bus(dev, "adb.0");
 297     dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD);
 298     qdev_init_nofail(dev);
 299     dev = qdev_create(adb_bus, TYPE_ADB_MOUSE);
 300     qdev_init_nofail(dev);
 301
 302     if (machine_usb(machine)) {
 303         pci_create_simple(pci_bus, -1, "pci-ohci");
 304     }
 305
 306     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 307         graphic_depth = 15;
 308
 309     /* No PCI init: the BIOS will do it */
 310
 311     fw_cfg = fw_cfg_init_mem(CFG_ADDR, CFG_ADDR + 2);
 312     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
 313     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 314     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 315     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
 316     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 317     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 318     if (kernel_cmdline) {
 319         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base);
 320         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline);
 321     } else {
 322         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 323     }
 324     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 325     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 326     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 327
 328     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 329     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 330     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 331
 332     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled());
 333     if (kvm_enabled()) {
 334 #ifdef CONFIG_KVM
 335         uint8_t *hypercall;
 336
 337         hypercall = g_malloc(16);
 338         kvmppc_get_hypercall(env, hypercall, 16);
 339         fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16);
 340         fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid());
 341 #endif
 342     }
 343     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq);
 344     /* Mac OS X requires a "known good" clock-frequency value; pass it one. */
 345     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ);
 346     fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ);
 347
 348     /* MacOS NDRV VGA driver */
 349     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, NDRV_VGA_FILENAME);
 350     if (filename) {
 351         ndrv_size = get_image_size(filename);
 352         if (ndrv_size != -1) {
 353             ndrv_file = g_malloc(ndrv_size);
 354             ndrv_size = load_image(filename, ndrv_file);
 355
 356             fw_cfg_add_file(fw_cfg, "ndrv/qemu_vga.ndrv", ndrv_file, ndrv_size);
 357         }
 358         g_free(filename);
 359     }
 360
 361     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 362 }
 363
 364 static int heathrow_kvm_type(const char *arg)
 365 {
 366     /* Always force PR KVM */
 367     return 2;
 368 }
 369
 370 static void heathrow_class_init(ObjectClass *oc, void *data)
 371 {
 372     MachineClass *mc = MACHINE_CLASS(oc);
 373
 374     mc->desc = "Heathrow based PowerMAC";
 375     mc->init = ppc_heathrow_init;
 376     mc->block_default_type = IF_IDE;
 377     mc->max_cpus = MAX_CPUS;
 378 #ifndef TARGET_PPC64
 379     mc->is_default = 1;
 380 #endif
 381     /* TOFIX "cad" when Mac floppy is implemented */
 382     mc->default_boot_order = "cd";
 383     mc->kvm_type = heathrow_kvm_type;
 384     mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750_v3.1");
 385 }
 386
 387 static const TypeInfo ppc_heathrow_machine_info = {
 388     .name          = MACHINE_TYPE_NAME("g3beige"),
 389     .parent        = TYPE_MACHINE,
 390     .class_init    = heathrow_class_init
 391 };
 392
 393 static void ppc_heathrow_register_types(void)
 394 {
 395     type_register_static(&ppc_heathrow_machine_info);
 396 }
 397
 398 type_init(ppc_heathrow_register_types);