hw/sparc64/sun4u.c

   1 /*
   2  * QEMU Sun4u/Sun4v System Emulator
   3  *
   4  * Copyright (c) 2005 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "hw/hw.h"
  25 #include "hw/pci/pci.h"
  26 #include "hw/pci-host/apb.h"
  27 #include "hw/i386/pc.h"
  28 #include "hw/char/serial.h"
  29 #include "hw/timer/m48t59.h"
  30 #include "hw/block/fdc.h"
  31 #include "net/net.h"
  32 #include "qemu/timer.h"
  33 #include "sysemu/sysemu.h"
  34 #include "hw/boards.h"
  35 #include "hw/sparc/firmware_abi.h"
  36 #include "hw/nvram/fw_cfg.h"
  37 #include "hw/sysbus.h"
  38 #include "hw/ide.h"
  39 #include "hw/loader.h"
  40 #include "elf.h"
  41 #include "sysemu/blockdev.h"
  42 #include "exec/address-spaces.h"
  43
  44 //#define DEBUG_IRQ
  45 //#define DEBUG_EBUS
  46 //#define DEBUG_TIMER
  47
  48 #ifdef DEBUG_IRQ
  49 #define CPUIRQ_DPRINTF(fmt, ...)                                \
  50     do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
  51 #else
  52 #define CPUIRQ_DPRINTF(fmt, ...)
  53 #endif
  54
  55 #ifdef DEBUG_EBUS
  56 #define EBUS_DPRINTF(fmt, ...)                                  \
  57     do { printf("EBUS: " fmt , ## __VA_ARGS__); } while (0)
  58 #else
  59 #define EBUS_DPRINTF(fmt, ...)
  60 #endif
  61
  62 #ifdef DEBUG_TIMER
  63 #define TIMER_DPRINTF(fmt, ...)                                  \
  64     do { printf("TIMER: " fmt , ## __VA_ARGS__); } while (0)
  65 #else
  66 #define TIMER_DPRINTF(fmt, ...)
  67 #endif
  68
  69 #define KERNEL_LOAD_ADDR     0x00404000
  70 #define CMDLINE_ADDR         0x003ff000
  71 #define PROM_SIZE_MAX        (4 * 1024 * 1024)
  72 #define PROM_VADDR           0x000ffd00000ULL
  73 #define APB_SPECIAL_BASE     0x1fe00000000ULL
  74 #define APB_MEM_BASE         0x1ff00000000ULL
  75 #define APB_PCI_IO_BASE      (APB_SPECIAL_BASE + 0x02000000ULL)
  76 #define PROM_FILENAME        "openbios-sparc64"
  77 #define NVRAM_SIZE           0x2000
  78 #define MAX_IDE_BUS          2
  79 #define BIOS_CFG_IOPORT      0x510
  80 #define FW_CFG_SPARC64_WIDTH (FW_CFG_ARCH_LOCAL + 0x00)
  81 #define FW_CFG_SPARC64_HEIGHT (FW_CFG_ARCH_LOCAL + 0x01)
  82 #define FW_CFG_SPARC64_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
  83
  84 #define IVEC_MAX             0x40
  85
  86 #define TICK_MAX             0x7fffffffffffffffULL
  87
  88 struct hwdef {
  89     const char * const default_cpu_model;
  90     uint16_t machine_id;
  91     uint64_t prom_addr;
  92     uint64_t console_serial_base;
  93 };
  94
  95 typedef struct EbusState {
  96     PCIDevice pci_dev;
  97     MemoryRegion bar0;
  98     MemoryRegion bar1;
  99 } EbusState;
 100
 101 int DMA_get_channel_mode (int nchan)
 102 {
 103     return 0;
 104 }
 105 int DMA_read_memory (int nchan, void *buf, int pos, int size)
 106 {
 107     return 0;
 108 }
 109 int DMA_write_memory (int nchan, void *buf, int pos, int size)
 110 {
 111     return 0;
 112 }
 113 void DMA_hold_DREQ (int nchan) {}
 114 void DMA_release_DREQ (int nchan) {}
 115 void DMA_schedule(int nchan) {}
 116
 117 void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit)
 118 {
 119 }
 120
 121 void DMA_register_channel (int nchan,
 122                            DMA_transfer_handler transfer_handler,
 123                            void *opaque)
 124 {
 125 }
 126
 127 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
 128 {
 129     fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
 130     return 0;
 131 }
 132
 133 static int sun4u_NVRAM_set_params(M48t59State *nvram, uint16_t NVRAM_size,
 134                                   const char *arch, ram_addr_t RAM_size,
 135                                   const char *boot_devices,
 136                                   uint32_t kernel_image, uint32_t kernel_size,
 137                                   const char *cmdline,
 138                                   uint32_t initrd_image, uint32_t initrd_size,
 139                                   uint32_t NVRAM_image,
 140                                   int width, int height, int depth,
 141                                   const uint8_t *macaddr)
 142 {
 143     unsigned int i;
 144     uint32_t start, end;
 145     uint8_t image[0x1ff0];
 146     struct OpenBIOS_nvpart_v1 *part_header;
 147
 148     memset(image, '\0', sizeof(image));
 149
 150     start = 0;
 151
 152     // OpenBIOS nvram variables
 153     // Variable partition
 154     part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
 155     part_header->signature = OPENBIOS_PART_SYSTEM;
 156     pstrcpy(part_header->name, sizeof(part_header->name), "system");
 157
 158     end = start + sizeof(struct OpenBIOS_nvpart_v1);
 159     for (i = 0; i < nb_prom_envs; i++)
 160         end = OpenBIOS_set_var(image, end, prom_envs[i]);
 161
 162     // End marker
 163     image[end++] = '\0';
 164
 165     end = start + ((end - start + 15) & ~15);
 166     OpenBIOS_finish_partition(part_header, end - start);
 167
 168     // free partition
 169     start = end;
 170     part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
 171     part_header->signature = OPENBIOS_PART_FREE;
 172     pstrcpy(part_header->name, sizeof(part_header->name), "free");
 173
 174     end = 0x1fd0;
 175     OpenBIOS_finish_partition(part_header, end - start);
 176
 177     Sun_init_header((struct Sun_nvram *)&image[0x1fd8], macaddr, 0x80);
 178
 179     for (i = 0; i < sizeof(image); i++)
 180         m48t59_write(nvram, i, image[i]);
 181
 182     return 0;
 183 }
 184
 185 static uint64_t sun4u_load_kernel(const char *kernel_filename,
 186                                   const char *initrd_filename,
 187                                   ram_addr_t RAM_size, uint64_t *initrd_size,
 188                                   uint64_t *initrd_addr, uint64_t *kernel_addr,
 189                                   uint64_t *kernel_entry)
 190 {
 191     int linux_boot;
 192     unsigned int i;
 193     long kernel_size;
 194     uint8_t *ptr;
 195     uint64_t kernel_top;
 196
 197     linux_boot = (kernel_filename != NULL);
 198
 199     kernel_size = 0;
 200     if (linux_boot) {
 201         int bswap_needed;
 202
 203 #ifdef BSWAP_NEEDED
 204         bswap_needed = 1;
 205 #else
 206         bswap_needed = 0;
 207 #endif
 208         kernel_size = load_elf(kernel_filename, NULL, NULL, kernel_entry,
 209                                kernel_addr, &kernel_top, 1, ELF_MACHINE, 0);
 210         if (kernel_size < 0) {
 211             *kernel_addr = KERNEL_LOAD_ADDR;
 212             *kernel_entry = KERNEL_LOAD_ADDR;
 213             kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
 214                                     RAM_size - KERNEL_LOAD_ADDR, bswap_needed,
 215                                     TARGET_PAGE_SIZE);
 216         }
 217         if (kernel_size < 0) {
 218             kernel_size = load_image_targphys(kernel_filename,
 219                                               KERNEL_LOAD_ADDR,
 220                                               RAM_size - KERNEL_LOAD_ADDR);
 221         }
 222         if (kernel_size < 0) {
 223             fprintf(stderr, "qemu: could not load kernel '%s'\n",
 224                     kernel_filename);
 225             exit(1);
 226         }
 227         /* load initrd above kernel */
 228         *initrd_size = 0;
 229         if (initrd_filename) {
 230             *initrd_addr = TARGET_PAGE_ALIGN(kernel_top);
 231
 232             *initrd_size = load_image_targphys(initrd_filename,
 233                                                *initrd_addr,
 234                                                RAM_size - *initrd_addr);
 235             if ((int)*initrd_size < 0) {
 236                 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
 237                         initrd_filename);
 238                 exit(1);
 239             }
 240         }
 241         if (*initrd_size > 0) {
 242             for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
 243                 ptr = rom_ptr(*kernel_addr + i);
 244                 if (ldl_p(ptr + 8) == 0x48647253) { /* HdrS */
 245                     stl_p(ptr + 24, *initrd_addr + *kernel_addr);
 246                     stl_p(ptr + 28, *initrd_size);
 247                     break;
 248                 }
 249             }
 250         }
 251     }
 252     return kernel_size;
 253 }
 254
 255 void cpu_check_irqs(CPUSPARCState *env)
 256 {
 257     CPUState *cs;
 258     uint32_t pil = env->pil_in |
 259                   (env->softint & ~(SOFTINT_TIMER | SOFTINT_STIMER));
 260
 261     /* TT_IVEC has a higher priority (16) than TT_EXTINT (31..17) */
 262     if (env->ivec_status & 0x20) {
 263         return;
 264     }
 265     cs = CPU(sparc_env_get_cpu(env));
 266     /* check if TM or SM in SOFTINT are set
 267        setting these also causes interrupt 14 */
 268     if (env->softint & (SOFTINT_TIMER | SOFTINT_STIMER)) {
 269         pil |= 1 << 14;
 270     }
 271
 272     /* The bit corresponding to psrpil is (1<< psrpil), the next bit
 273        is (2 << psrpil). */
 274     if (pil < (2 << env->psrpil)){
 275         if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
 276             CPUIRQ_DPRINTF("Reset CPU IRQ (current interrupt %x)\n",
 277                            env->interrupt_index);
 278             env->interrupt_index = 0;
 279             cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 280         }
 281         return;
 282     }
 283
 284     if (cpu_interrupts_enabled(env)) {
 285
 286         unsigned int i;
 287
 288         for (i = 15; i > env->psrpil; i--) {
 289             if (pil & (1 << i)) {
 290                 int old_interrupt = env->interrupt_index;
 291                 int new_interrupt = TT_EXTINT | i;
 292
 293                 if (unlikely(env->tl > 0 && cpu_tsptr(env)->tt > new_interrupt
 294                   && ((cpu_tsptr(env)->tt & 0x1f0) == TT_EXTINT))) {
 295                     CPUIRQ_DPRINTF("Not setting CPU IRQ: TL=%d "
 296                                    "current %x >= pending %x\n",
 297                                    env->tl, cpu_tsptr(env)->tt, new_interrupt);
 298                 } else if (old_interrupt != new_interrupt) {
 299                     env->interrupt_index = new_interrupt;
 300                     CPUIRQ_DPRINTF("Set CPU IRQ %d old=%x new=%x\n", i,
 301                                    old_interrupt, new_interrupt);
 302                     cpu_interrupt(cs, CPU_INTERRUPT_HARD);
 303                 }
 304                 break;
 305             }
 306         }
 307     } else if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
 308         CPUIRQ_DPRINTF("Interrupts disabled, pil=%08x pil_in=%08x softint=%08x "
 309                        "current interrupt %x\n",
 310                        pil, env->pil_in, env->softint, env->interrupt_index);
 311         env->interrupt_index = 0;
 312         cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 313     }
 314 }
 315
 316 static void cpu_kick_irq(SPARCCPU *cpu)
 317 {
 318     CPUState *cs = CPU(cpu);
 319     CPUSPARCState *env = &cpu->env;
 320
 321     cs->halted = 0;
 322     cpu_check_irqs(env);
 323     qemu_cpu_kick(cs);
 324 }
 325
 326 static void cpu_set_ivec_irq(void *opaque, int irq, int level)
 327 {
 328     SPARCCPU *cpu = opaque;
 329     CPUSPARCState *env = &cpu->env;
 330     CPUState *cs;
 331
 332     if (level) {
 333         if (!(env->ivec_status & 0x20)) {
 334             CPUIRQ_DPRINTF("Raise IVEC IRQ %d\n", irq);
 335             cs = CPU(cpu);
 336             cs->halted = 0;
 337             env->interrupt_index = TT_IVEC;
 338             env->ivec_status |= 0x20;
 339             env->ivec_data[0] = (0x1f << 6) | irq;
 340             env->ivec_data[1] = 0;
 341             env->ivec_data[2] = 0;
 342             cpu_interrupt(cs, CPU_INTERRUPT_HARD);
 343         }
 344     } else {
 345         if (env->ivec_status & 0x20) {
 346             CPUIRQ_DPRINTF("Lower IVEC IRQ %d\n", irq);
 347             cs = CPU(cpu);
 348             env->ivec_status &= ~0x20;
 349             cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 350         }
 351     }
 352 }
 353
 354 typedef struct ResetData {
 355     SPARCCPU *cpu;
 356     uint64_t prom_addr;
 357 } ResetData;
 358
 359 void cpu_put_timer(QEMUFile *f, CPUTimer *s)
 360 {
 361     qemu_put_be32s(f, &s->frequency);
 362     qemu_put_be32s(f, &s->disabled);
 363     qemu_put_be64s(f, &s->disabled_mask);
 364     qemu_put_sbe64s(f, &s->clock_offset);
 365
 366     qemu_put_timer(f, s->qtimer);
 367 }
 368
 369 void cpu_get_timer(QEMUFile *f, CPUTimer *s)
 370 {
 371     qemu_get_be32s(f, &s->frequency);
 372     qemu_get_be32s(f, &s->disabled);
 373     qemu_get_be64s(f, &s->disabled_mask);
 374     qemu_get_sbe64s(f, &s->clock_offset);
 375
 376     qemu_get_timer(f, s->qtimer);
 377 }
 378
 379 static CPUTimer *cpu_timer_create(const char *name, SPARCCPU *cpu,
 380                                   QEMUBHFunc *cb, uint32_t frequency,
 381                                   uint64_t disabled_mask)
 382 {
 383     CPUTimer *timer = g_malloc0(sizeof (CPUTimer));
 384
 385     timer->name = name;
 386     timer->frequency = frequency;
 387     timer->disabled_mask = disabled_mask;
 388
 389     timer->disabled = 1;
 390     timer->clock_offset = qemu_get_clock_ns(vm_clock);
 391
 392     timer->qtimer = qemu_new_timer_ns(vm_clock, cb, cpu);
 393
 394     return timer;
 395 }
 396
 397 static void cpu_timer_reset(CPUTimer *timer)
 398 {
 399     timer->disabled = 1;
 400     timer->clock_offset = qemu_get_clock_ns(vm_clock);
 401
 402     qemu_del_timer(timer->qtimer);
 403 }
 404
 405 static void main_cpu_reset(void *opaque)
 406 {
 407     ResetData *s = (ResetData *)opaque;
 408     CPUSPARCState *env = &s->cpu->env;
 409     static unsigned int nr_resets;
 410
 411     cpu_reset(CPU(s->cpu));
 412
 413     cpu_timer_reset(env->tick);
 414     cpu_timer_reset(env->stick);
 415     cpu_timer_reset(env->hstick);
 416
 417     env->gregs[1] = 0; // Memory start
 418     env->gregs[2] = ram_size; // Memory size
 419     env->gregs[3] = 0; // Machine description XXX
 420     if (nr_resets++ == 0) {
 421         /* Power on reset */
 422         env->pc = s->prom_addr + 0x20ULL;
 423     } else {
 424         env->pc = s->prom_addr + 0x40ULL;
 425     }
 426     env->npc = env->pc + 4;
 427 }
 428
 429 static void tick_irq(void *opaque)
 430 {
 431     SPARCCPU *cpu = opaque;
 432     CPUSPARCState *env = &cpu->env;
 433
 434     CPUTimer* timer = env->tick;
 435
 436     if (timer->disabled) {
 437         CPUIRQ_DPRINTF("tick_irq: softint disabled\n");
 438         return;
 439     } else {
 440         CPUIRQ_DPRINTF("tick: fire\n");
 441     }
 442
 443     env->softint |= SOFTINT_TIMER;
 444     cpu_kick_irq(cpu);
 445 }
 446
 447 static void stick_irq(void *opaque)
 448 {
 449     SPARCCPU *cpu = opaque;
 450     CPUSPARCState *env = &cpu->env;
 451
 452     CPUTimer* timer = env->stick;
 453
 454     if (timer->disabled) {
 455         CPUIRQ_DPRINTF("stick_irq: softint disabled\n");
 456         return;
 457     } else {
 458         CPUIRQ_DPRINTF("stick: fire\n");
 459     }
 460
 461     env->softint |= SOFTINT_STIMER;
 462     cpu_kick_irq(cpu);
 463 }
 464
 465 static void hstick_irq(void *opaque)
 466 {
 467     SPARCCPU *cpu = opaque;
 468     CPUSPARCState *env = &cpu->env;
 469
 470     CPUTimer* timer = env->hstick;
 471
 472     if (timer->disabled) {
 473         CPUIRQ_DPRINTF("hstick_irq: softint disabled\n");
 474         return;
 475     } else {
 476         CPUIRQ_DPRINTF("hstick: fire\n");
 477     }
 478
 479     env->softint |= SOFTINT_STIMER;
 480     cpu_kick_irq(cpu);
 481 }
 482
 483 static int64_t cpu_to_timer_ticks(int64_t cpu_ticks, uint32_t frequency)
 484 {
 485     return muldiv64(cpu_ticks, get_ticks_per_sec(), frequency);
 486 }
 487
 488 static uint64_t timer_to_cpu_ticks(int64_t timer_ticks, uint32_t frequency)
 489 {
 490     return muldiv64(timer_ticks, frequency, get_ticks_per_sec());
 491 }
 492
 493 void cpu_tick_set_count(CPUTimer *timer, uint64_t count)
 494 {
 495     uint64_t real_count = count & ~timer->disabled_mask;
 496     uint64_t disabled_bit = count & timer->disabled_mask;
 497
 498     int64_t vm_clock_offset = qemu_get_clock_ns(vm_clock) -
 499                     cpu_to_timer_ticks(real_count, timer->frequency);
 500
 501     TIMER_DPRINTF("%s set_count count=0x%016lx (%s) p=%p\n",
 502                   timer->name, real_count,
 503                   timer->disabled?"disabled":"enabled", timer);
 504
 505     timer->disabled = disabled_bit ? 1 : 0;
 506     timer->clock_offset = vm_clock_offset;
 507 }
 508
 509 uint64_t cpu_tick_get_count(CPUTimer *timer)
 510 {
 511     uint64_t real_count = timer_to_cpu_ticks(
 512                     qemu_get_clock_ns(vm_clock) - timer->clock_offset,
 513                     timer->frequency);
 514
 515     TIMER_DPRINTF("%s get_count count=0x%016lx (%s) p=%p\n",
 516            timer->name, real_count,
 517            timer->disabled?"disabled":"enabled", timer);
 518
 519     if (timer->disabled)
 520         real_count |= timer->disabled_mask;
 521
 522     return real_count;
 523 }
 524
 525 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit)
 526 {
 527     int64_t now = qemu_get_clock_ns(vm_clock);
 528
 529     uint64_t real_limit = limit & ~timer->disabled_mask;
 530     timer->disabled = (limit & timer->disabled_mask) ? 1 : 0;
 531
 532     int64_t expires = cpu_to_timer_ticks(real_limit, timer->frequency) +
 533                     timer->clock_offset;
 534
 535     if (expires < now) {
 536         expires = now + 1;
 537     }
 538
 539     TIMER_DPRINTF("%s set_limit limit=0x%016lx (%s) p=%p "
 540                   "called with limit=0x%016lx at 0x%016lx (delta=0x%016lx)\n",
 541                   timer->name, real_limit,
 542                   timer->disabled?"disabled":"enabled",
 543                   timer, limit,
 544                   timer_to_cpu_ticks(now - timer->clock_offset,
 545                                      timer->frequency),
 546                   timer_to_cpu_ticks(expires - now, timer->frequency));
 547
 548     if (!real_limit) {
 549         TIMER_DPRINTF("%s set_limit limit=ZERO - not starting timer\n",
 550                 timer->name);
 551         qemu_del_timer(timer->qtimer);
 552     } else if (timer->disabled) {
 553         qemu_del_timer(timer->qtimer);
 554     } else {
 555         qemu_mod_timer(timer->qtimer, expires);
 556     }
 557 }
 558
 559 static void isa_irq_handler(void *opaque, int n, int level)
 560 {
 561     static const int isa_irq_to_ivec[16] = {
 562         [1] = 0x29, /* keyboard */
 563         [4] = 0x2b, /* serial */
 564         [6] = 0x27, /* floppy */
 565         [7] = 0x22, /* parallel */
 566         [12] = 0x2a, /* mouse */
 567     };
 568     qemu_irq *irqs = opaque;
 569     int ivec;
 570
 571     assert(n < 16);
 572     ivec = isa_irq_to_ivec[n];
 573     EBUS_DPRINTF("Set ISA IRQ %d level %d -> ivec 0x%x\n", n, level, ivec);
 574     if (ivec) {
 575         qemu_set_irq(irqs[ivec], level);
 576     }
 577 }
 578
 579 /* EBUS (Eight bit bus) bridge */
 580 static ISABus *
 581 pci_ebus_init(PCIBus *bus, int devfn, qemu_irq *irqs)
 582 {
 583     qemu_irq *isa_irq;
 584     PCIDevice *pci_dev;
 585     ISABus *isa_bus;
 586
 587     pci_dev = pci_create_simple(bus, devfn, "ebus");
 588     isa_bus = DO_UPCAST(ISABus, qbus,
 589                         qdev_get_child_bus(&pci_dev->qdev, "isa.0"));
 590     isa_irq = qemu_allocate_irqs(isa_irq_handler, irqs, 16);
 591     isa_bus_irqs(isa_bus, isa_irq);
 592     return isa_bus;
 593 }
 594
 595 static int
 596 pci_ebus_init1(PCIDevice *pci_dev)
 597 {
 598     EbusState *s = DO_UPCAST(EbusState, pci_dev, pci_dev);
 599
 600     isa_bus_new(&pci_dev->qdev, pci_address_space_io(pci_dev));
 601
 602     pci_dev->config[0x04] = 0x06; // command = bus master, pci mem
 603     pci_dev->config[0x05] = 0x00;
 604     pci_dev->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
 605     pci_dev->config[0x07] = 0x03; // status = medium devsel
 606     pci_dev->config[0x09] = 0x00; // programming i/f
 607     pci_dev->config[0x0D] = 0x0a; // latency_timer
 608
 609     isa_mmio_setup(&s->bar0, 0x1000000);
 610     pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0);
 611     isa_mmio_setup(&s->bar1, 0x800000);
 612     pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar1);
 613     return 0;
 614 }
 615
 616 static void ebus_class_init(ObjectClass *klass, void *data)
 617 {
 618     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 619
 620     k->init = pci_ebus_init1;
 621     k->vendor_id = PCI_VENDOR_ID_SUN;
 622     k->device_id = PCI_DEVICE_ID_SUN_EBUS;
 623     k->revision = 0x01;
 624     k->class_id = PCI_CLASS_BRIDGE_OTHER;
 625 }
 626
 627 static const TypeInfo ebus_info = {
 628     .name          = "ebus",
 629     .parent        = TYPE_PCI_DEVICE,
 630     .instance_size = sizeof(EbusState),
 631     .class_init    = ebus_class_init,
 632 };
 633
 634 typedef struct PROMState {
 635     SysBusDevice busdev;
 636     MemoryRegion prom;
 637 } PROMState;
 638
 639 static uint64_t translate_prom_address(void *opaque, uint64_t addr)
 640 {
 641     hwaddr *base_addr = (hwaddr *)opaque;
 642     return addr + *base_addr - PROM_VADDR;
 643 }
 644
 645 /* Boot PROM (OpenBIOS) */
 646 static void prom_init(hwaddr addr, const char *bios_name)
 647 {
 648     DeviceState *dev;
 649     SysBusDevice *s;
 650     char *filename;
 651     int ret;
 652
 653     dev = qdev_create(NULL, "openprom");
 654     qdev_init_nofail(dev);
 655     s = SYS_BUS_DEVICE(dev);
 656
 657     sysbus_mmio_map(s, 0, addr);
 658
 659     /* load boot prom */
 660     if (bios_name == NULL) {
 661         bios_name = PROM_FILENAME;
 662     }
 663     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 664     if (filename) {
 665         ret = load_elf(filename, translate_prom_address, &addr,
 666                        NULL, NULL, NULL, 1, ELF_MACHINE, 0);
 667         if (ret < 0 || ret > PROM_SIZE_MAX) {
 668             ret = load_image_targphys(filename, addr, PROM_SIZE_MAX);
 669         }
 670         g_free(filename);
 671     } else {
 672         ret = -1;
 673     }
 674     if (ret < 0 || ret > PROM_SIZE_MAX) {
 675         fprintf(stderr, "qemu: could not load prom '%s'\n", bios_name);
 676         exit(1);
 677     }
 678 }
 679
 680 static int prom_init1(SysBusDevice *dev)
 681 {
 682     PROMState *s = FROM_SYSBUS(PROMState, dev);
 683
 684     memory_region_init_ram(&s->prom, "sun4u.prom", PROM_SIZE_MAX);
 685     vmstate_register_ram_global(&s->prom);
 686     memory_region_set_readonly(&s->prom, true);
 687     sysbus_init_mmio(dev, &s->prom);
 688     return 0;
 689 }
 690
 691 static Property prom_properties[] = {
 692     {/* end of property list */},
 693 };
 694
 695 static void prom_class_init(ObjectClass *klass, void *data)
 696 {
 697     DeviceClass *dc = DEVICE_CLASS(klass);
 698     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 699
 700     k->init = prom_init1;
 701     dc->props = prom_properties;
 702 }
 703
 704 static const TypeInfo prom_info = {
 705     .name          = "openprom",
 706     .parent        = TYPE_SYS_BUS_DEVICE,
 707     .instance_size = sizeof(PROMState),
 708     .class_init    = prom_class_init,
 709 };
 710
 711
 712 typedef struct RamDevice
 713 {
 714     SysBusDevice busdev;
 715     MemoryRegion ram;
 716     uint64_t size;
 717 } RamDevice;
 718
 719 /* System RAM */
 720 static int ram_init1(SysBusDevice *dev)
 721 {
 722     RamDevice *d = FROM_SYSBUS(RamDevice, dev);
 723
 724     memory_region_init_ram(&d->ram, "sun4u.ram", d->size);
 725     vmstate_register_ram_global(&d->ram);
 726     sysbus_init_mmio(dev, &d->ram);
 727     return 0;
 728 }
 729
 730 static void ram_init(hwaddr addr, ram_addr_t RAM_size)
 731 {
 732     DeviceState *dev;
 733     SysBusDevice *s;
 734     RamDevice *d;
 735
 736     /* allocate RAM */
 737     dev = qdev_create(NULL, "memory");
 738     s = SYS_BUS_DEVICE(dev);
 739
 740     d = FROM_SYSBUS(RamDevice, s);
 741     d->size = RAM_size;
 742     qdev_init_nofail(dev);
 743
 744     sysbus_mmio_map(s, 0, addr);
 745 }
 746
 747 static Property ram_properties[] = {
 748     DEFINE_PROP_UINT64("size", RamDevice, size, 0),
 749     DEFINE_PROP_END_OF_LIST(),
 750 };
 751
 752 static void ram_class_init(ObjectClass *klass, void *data)
 753 {
 754     DeviceClass *dc = DEVICE_CLASS(klass);
 755     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 756
 757     k->init = ram_init1;
 758     dc->props = ram_properties;
 759 }
 760
 761 static const TypeInfo ram_info = {
 762     .name          = "memory",
 763     .parent        = TYPE_SYS_BUS_DEVICE,
 764     .instance_size = sizeof(RamDevice),
 765     .class_init    = ram_class_init,
 766 };
 767
 768 static SPARCCPU *cpu_devinit(const char *cpu_model, const struct hwdef *hwdef)
 769 {
 770     SPARCCPU *cpu;
 771     CPUSPARCState *env;
 772     ResetData *reset_info;
 773
 774     uint32_t   tick_frequency = 100*1000000;
 775     uint32_t  stick_frequency = 100*1000000;
 776     uint32_t hstick_frequency = 100*1000000;
 777
 778     if (cpu_model == NULL) {
 779         cpu_model = hwdef->default_cpu_model;
 780     }
 781     cpu = cpu_sparc_init(cpu_model);
 782     if (cpu == NULL) {
 783         fprintf(stderr, "Unable to find Sparc CPU definition\n");
 784         exit(1);
 785     }
 786     env = &cpu->env;
 787
 788     env->tick = cpu_timer_create("tick", cpu, tick_irq,
 789                                   tick_frequency, TICK_NPT_MASK);
 790
 791     env->stick = cpu_timer_create("stick", cpu, stick_irq,
 792                                    stick_frequency, TICK_INT_DIS);
 793
 794     env->hstick = cpu_timer_create("hstick", cpu, hstick_irq,
 795                                     hstick_frequency, TICK_INT_DIS);
 796
 797     reset_info = g_malloc0(sizeof(ResetData));
 798     reset_info->cpu = cpu;
 799     reset_info->prom_addr = hwdef->prom_addr;
 800     qemu_register_reset(main_cpu_reset, reset_info);
 801
 802     return cpu;
 803 }
 804
 805 static void sun4uv_init(MemoryRegion *address_space_mem,
 806                         ram_addr_t RAM_size,
 807                         const char *boot_devices,
 808                         const char *kernel_filename, const char *kernel_cmdline,
 809                         const char *initrd_filename, const char *cpu_model,
 810                         const struct hwdef *hwdef)
 811 {
 812     SPARCCPU *cpu;
 813     M48t59State *nvram;
 814     unsigned int i;
 815     uint64_t initrd_addr, initrd_size, kernel_addr, kernel_size, kernel_entry;
 816     PCIBus *pci_bus, *pci_bus2, *pci_bus3;
 817     ISABus *isa_bus;
 818     qemu_irq *ivec_irqs, *pbm_irqs;
 819     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 820     DriveInfo *fd[MAX_FD];
 821     void *fw_cfg;
 822
 823     /* init CPUs */
 824     cpu = cpu_devinit(cpu_model, hwdef);
 825
 826     /* set up devices */
 827     ram_init(0, RAM_size);
 828
 829     prom_init(hwdef->prom_addr, bios_name);
 830
 831     ivec_irqs = qemu_allocate_irqs(cpu_set_ivec_irq, cpu, IVEC_MAX);
 832     pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, ivec_irqs, &pci_bus2,
 833                            &pci_bus3, &pbm_irqs);
 834     pci_vga_init(pci_bus);
 835
 836     // XXX Should be pci_bus3
 837     isa_bus = pci_ebus_init(pci_bus, -1, pbm_irqs);
 838
 839     i = 0;
 840     if (hwdef->console_serial_base) {
 841         serial_mm_init(address_space_mem, hwdef->console_serial_base, 0,
 842                        NULL, 115200, serial_hds[i], DEVICE_BIG_ENDIAN);
 843         i++;
 844     }
 845     for(; i < MAX_SERIAL_PORTS; i++) {
 846         if (serial_hds[i]) {
 847             serial_isa_init(isa_bus, i, serial_hds[i]);
 848         }
 849     }
 850
 851     for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
 852         if (parallel_hds[i]) {
 853             parallel_init(isa_bus, i, parallel_hds[i]);
 854         }
 855     }
 856
 857     for(i = 0; i < nb_nics; i++)
 858         pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL);
 859
 860     ide_drive_get(hd, MAX_IDE_BUS);
 861
 862     pci_cmd646_ide_init(pci_bus, hd, 1);
 863
 864     isa_create_simple(isa_bus, "i8042");
 865     for(i = 0; i < MAX_FD; i++) {
 866         fd[i] = drive_get(IF_FLOPPY, 0, i);
 867     }
 868     fdctrl_init_isa(isa_bus, fd);
 869     nvram = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 59);
 870
 871     initrd_size = 0;
 872     initrd_addr = 0;
 873     kernel_size = sun4u_load_kernel(kernel_filename, initrd_filename,
 874                                     ram_size, &initrd_size, &initrd_addr,
 875                                     &kernel_addr, &kernel_entry);
 876
 877     sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", RAM_size, boot_devices,
 878                            kernel_addr, kernel_size,
 879                            kernel_cmdline,
 880                            initrd_addr, initrd_size,
 881                            /* XXX: need an option to load a NVRAM image */
 882                            0,
 883                            graphic_width, graphic_height, graphic_depth,
 884                            (uint8_t *)&nd_table[0].macaddr);
 885
 886     fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
 887     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 888     fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
 889     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 890     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);
 891     fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_entry);
 892     fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 893     if (kernel_cmdline) {
 894         fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,
 895                        strlen(kernel_cmdline) + 1);
 896         fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline);
 897     } else {
 898         fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 0);
 899     }
 900     fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
 901     fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 902     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_devices[0]);
 903
 904     fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_WIDTH, graphic_width);
 905     fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_HEIGHT, graphic_height);
 906     fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_DEPTH, graphic_depth);
 907
 908     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 909 }
 910
 911 enum {
 912     sun4u_id = 0,
 913     sun4v_id = 64,
 914     niagara_id,
 915 };
 916
 917 static const struct hwdef hwdefs[] = {
 918     /* Sun4u generic PC-like machine */
 919     {
 920         .default_cpu_model = "TI UltraSparc IIi",
 921         .machine_id = sun4u_id,
 922         .prom_addr = 0x1fff0000000ULL,
 923         .console_serial_base = 0,
 924     },
 925     /* Sun4v generic PC-like machine */
 926     {
 927         .default_cpu_model = "Sun UltraSparc T1",
 928         .machine_id = sun4v_id,
 929         .prom_addr = 0x1fff0000000ULL,
 930         .console_serial_base = 0,
 931     },
 932     /* Sun4v generic Niagara machine */
 933     {
 934         .default_cpu_model = "Sun UltraSparc T1",
 935         .machine_id = niagara_id,
 936         .prom_addr = 0xfff0000000ULL,
 937         .console_serial_base = 0xfff0c2c000ULL,
 938     },
 939 };
 940
 941 /* Sun4u hardware initialisation */
 942 static void sun4u_init(QEMUMachineInitArgs *args)
 943 {
 944     ram_addr_t RAM_size = args->ram_size;
 945     const char *cpu_model = args->cpu_model;
 946     const char *kernel_filename = args->kernel_filename;
 947     const char *kernel_cmdline = args->kernel_cmdline;
 948     const char *initrd_filename = args->initrd_filename;
 949     const char *boot_devices = args->boot_device;
 950     sun4uv_init(get_system_memory(), RAM_size, boot_devices, kernel_filename,
 951                 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[0]);
 952 }
 953
 954 /* Sun4v hardware initialisation */
 955 static void sun4v_init(QEMUMachineInitArgs *args)
 956 {
 957     ram_addr_t RAM_size = args->ram_size;
 958     const char *cpu_model = args->cpu_model;
 959     const char *kernel_filename = args->kernel_filename;
 960     const char *kernel_cmdline = args->kernel_cmdline;
 961     const char *initrd_filename = args->initrd_filename;
 962     const char *boot_devices = args->boot_device;
 963     sun4uv_init(get_system_memory(), RAM_size, boot_devices, kernel_filename,
 964                 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[1]);
 965 }
 966
 967 /* Niagara hardware initialisation */
 968 static void niagara_init(QEMUMachineInitArgs *args)
 969 {
 970     ram_addr_t RAM_size = args->ram_size;
 971     const char *cpu_model = args->cpu_model;
 972     const char *kernel_filename = args->kernel_filename;
 973     const char *kernel_cmdline = args->kernel_cmdline;
 974     const char *initrd_filename = args->initrd_filename;
 975     const char *boot_devices = args->boot_device;
 976     sun4uv_init(get_system_memory(), RAM_size, boot_devices, kernel_filename,
 977                 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[2]);
 978 }
 979
 980 static QEMUMachine sun4u_machine = {
 981     .name = "sun4u",
 982     .desc = "Sun4u platform",
 983     .init = sun4u_init,
 984     .max_cpus = 1, // XXX for now
 985     .is_default = 1,
 986     DEFAULT_MACHINE_OPTIONS,
 987 };
 988
 989 static QEMUMachine sun4v_machine = {
 990     .name = "sun4v",
 991     .desc = "Sun4v platform",
 992     .init = sun4v_init,
 993     .max_cpus = 1, // XXX for now
 994     DEFAULT_MACHINE_OPTIONS,
 995 };
 996
 997 static QEMUMachine niagara_machine = {
 998     .name = "Niagara",
 999     .desc = "Sun4v platform, Niagara",
1000     .init = niagara_init,
1001     .max_cpus = 1, // XXX for now
1002     DEFAULT_MACHINE_OPTIONS,
1003 };
1004
1005 static void sun4u_register_types(void)
1006 {
1007     type_register_static(&ebus_info);
1008     type_register_static(&prom_info);
1009     type_register_static(&ram_info);
1010 }
1011
1012 static void sun4u_machine_init(void)
1013 {
1014     qemu_register_machine(&sun4u_machine);
1015     qemu_register_machine(&sun4v_machine);
1016     qemu_register_machine(&niagara_machine);
1017 }
1018
1019 type_init(sun4u_register_types)
1020 machine_init(sun4u_machine_init);