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/nvram/openbios_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/block-backend.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(void) {}
 116
 117 void DMA_init(int high_page_enable)
 118 {
 119 }
 120
 121 void DMA_register_channel (int nchan,
 122                            DMA_transfer_handler transfer_handler,
 123                            void *opaque)
 124 {
 125 }
 126
 127 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
 128                             Error **errp)
 129 {
 130     fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
 131 }
 132
 133 static int sun4u_NVRAM_set_params(Nvram *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     NvramClass *k = NVRAM_GET_CLASS(nvram);
 148
 149     memset(image, '\0', sizeof(image));
 150
 151     start = 0;
 152
 153     // OpenBIOS nvram variables
 154     // Variable partition
 155     part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
 156     part_header->signature = OPENBIOS_PART_SYSTEM;
 157     pstrcpy(part_header->name, sizeof(part_header->name), "system");
 158
 159     end = start + sizeof(struct OpenBIOS_nvpart_v1);
 160     for (i = 0; i < nb_prom_envs; i++)
 161         end = OpenBIOS_set_var(image, end, prom_envs[i]);
 162
 163     // End marker
 164     image[end++] = '\0';
 165
 166     end = start + ((end - start + 15) & ~15);
 167     OpenBIOS_finish_partition(part_header, end - start);
 168
 169     // free partition
 170     start = end;
 171     part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
 172     part_header->signature = OPENBIOS_PART_FREE;
 173     pstrcpy(part_header->name, sizeof(part_header->name), "free");
 174
 175     end = 0x1fd0;
 176     OpenBIOS_finish_partition(part_header, end - start);
 177
 178     Sun_init_header((struct Sun_nvram *)&image[0x1fd8], macaddr, 0x80);
 179
 180     for (i = 0; i < sizeof(image); i++) {
 181         (k->write)(nvram, i, image[i]);
 182     }
 183
 184     return 0;
 185 }
 186
 187 static uint64_t sun4u_load_kernel(const char *kernel_filename,
 188                                   const char *initrd_filename,
 189                                   ram_addr_t RAM_size, uint64_t *initrd_size,
 190                                   uint64_t *initrd_addr, uint64_t *kernel_addr,
 191                                   uint64_t *kernel_entry)
 192 {
 193     int linux_boot;
 194     unsigned int i;
 195     long kernel_size;
 196     uint8_t *ptr;
 197     uint64_t kernel_top;
 198
 199     linux_boot = (kernel_filename != NULL);
 200
 201     kernel_size = 0;
 202     if (linux_boot) {
 203         int bswap_needed;
 204
 205 #ifdef BSWAP_NEEDED
 206         bswap_needed = 1;
 207 #else
 208         bswap_needed = 0;
 209 #endif
 210         kernel_size = load_elf(kernel_filename, NULL, NULL, kernel_entry,
 211                                kernel_addr, &kernel_top, 1, EM_SPARCV9, 0);
 212         if (kernel_size < 0) {
 213             *kernel_addr = KERNEL_LOAD_ADDR;
 214             *kernel_entry = KERNEL_LOAD_ADDR;
 215             kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
 216                                     RAM_size - KERNEL_LOAD_ADDR, bswap_needed,
 217                                     TARGET_PAGE_SIZE);
 218         }
 219         if (kernel_size < 0) {
 220             kernel_size = load_image_targphys(kernel_filename,
 221                                               KERNEL_LOAD_ADDR,
 222                                               RAM_size - KERNEL_LOAD_ADDR);
 223         }
 224         if (kernel_size < 0) {
 225             fprintf(stderr, "qemu: could not load kernel '%s'\n",
 226                     kernel_filename);
 227             exit(1);
 228         }
 229         /* load initrd above kernel */
 230         *initrd_size = 0;
 231         if (initrd_filename) {
 232             *initrd_addr = TARGET_PAGE_ALIGN(kernel_top);
 233
 234             *initrd_size = load_image_targphys(initrd_filename,
 235                                                *initrd_addr,
 236                                                RAM_size - *initrd_addr);
 237             if ((int)*initrd_size < 0) {
 238                 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
 239                         initrd_filename);
 240                 exit(1);
 241             }
 242         }
 243         if (*initrd_size > 0) {
 244             for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
 245                 ptr = rom_ptr(*kernel_addr + i);
 246                 if (ldl_p(ptr + 8) == 0x48647253) { /* HdrS */
 247                     stl_p(ptr + 24, *initrd_addr + *kernel_addr);
 248                     stl_p(ptr + 28, *initrd_size);
 249                     break;
 250                 }
 251             }
 252         }
 253     }
 254     return kernel_size;
 255 }
 256
 257 void cpu_check_irqs(CPUSPARCState *env)
 258 {
 259     CPUState *cs;
 260     uint32_t pil = env->pil_in |
 261                   (env->softint & ~(SOFTINT_TIMER | SOFTINT_STIMER));
 262
 263     /* TT_IVEC has a higher priority (16) than TT_EXTINT (31..17) */
 264     if (env->ivec_status & 0x20) {
 265         return;
 266     }
 267     cs = CPU(sparc_env_get_cpu(env));
 268     /* check if TM or SM in SOFTINT are set
 269        setting these also causes interrupt 14 */
 270     if (env->softint & (SOFTINT_TIMER | SOFTINT_STIMER)) {
 271         pil |= 1 << 14;
 272     }
 273
 274     /* The bit corresponding to psrpil is (1<< psrpil), the next bit
 275        is (2 << psrpil). */
 276     if (pil < (2 << env->psrpil)){
 277         if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
 278             CPUIRQ_DPRINTF("Reset CPU IRQ (current interrupt %x)\n",
 279                            env->interrupt_index);
 280             env->interrupt_index = 0;
 281             cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 282         }
 283         return;
 284     }
 285
 286     if (cpu_interrupts_enabled(env)) {
 287
 288         unsigned int i;
 289
 290         for (i = 15; i > env->psrpil; i--) {
 291             if (pil & (1 << i)) {
 292                 int old_interrupt = env->interrupt_index;
 293                 int new_interrupt = TT_EXTINT | i;
 294
 295                 if (unlikely(env->tl > 0 && cpu_tsptr(env)->tt > new_interrupt
 296                   && ((cpu_tsptr(env)->tt & 0x1f0) == TT_EXTINT))) {
 297                     CPUIRQ_DPRINTF("Not setting CPU IRQ: TL=%d "
 298                                    "current %x >= pending %x\n",
 299                                    env->tl, cpu_tsptr(env)->tt, new_interrupt);
 300                 } else if (old_interrupt != new_interrupt) {
 301                     env->interrupt_index = new_interrupt;
 302                     CPUIRQ_DPRINTF("Set CPU IRQ %d old=%x new=%x\n", i,
 303                                    old_interrupt, new_interrupt);
 304                     cpu_interrupt(cs, CPU_INTERRUPT_HARD);
 305                 }
 306                 break;
 307             }
 308         }
 309     } else if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
 310         CPUIRQ_DPRINTF("Interrupts disabled, pil=%08x pil_in=%08x softint=%08x "
 311                        "current interrupt %x\n",
 312                        pil, env->pil_in, env->softint, env->interrupt_index);
 313         env->interrupt_index = 0;
 314         cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 315     }
 316 }
 317
 318 static void cpu_kick_irq(SPARCCPU *cpu)
 319 {
 320     CPUState *cs = CPU(cpu);
 321     CPUSPARCState *env = &cpu->env;
 322
 323     cs->halted = 0;
 324     cpu_check_irqs(env);
 325     qemu_cpu_kick(cs);
 326 }
 327
 328 static void cpu_set_ivec_irq(void *opaque, int irq, int level)
 329 {
 330     SPARCCPU *cpu = opaque;
 331     CPUSPARCState *env = &cpu->env;
 332     CPUState *cs;
 333
 334     if (level) {
 335         if (!(env->ivec_status & 0x20)) {
 336             CPUIRQ_DPRINTF("Raise IVEC IRQ %d\n", irq);
 337             cs = CPU(cpu);
 338             cs->halted = 0;
 339             env->interrupt_index = TT_IVEC;
 340             env->ivec_status |= 0x20;
 341             env->ivec_data[0] = (0x1f << 6) | irq;
 342             env->ivec_data[1] = 0;
 343             env->ivec_data[2] = 0;
 344             cpu_interrupt(cs, CPU_INTERRUPT_HARD);
 345         }
 346     } else {
 347         if (env->ivec_status & 0x20) {
 348             CPUIRQ_DPRINTF("Lower IVEC IRQ %d\n", irq);
 349             cs = CPU(cpu);
 350             env->ivec_status &= ~0x20;
 351             cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 352         }
 353     }
 354 }
 355
 356 typedef struct ResetData {
 357     SPARCCPU *cpu;
 358     uint64_t prom_addr;
 359 } ResetData;
 360
 361 static CPUTimer *cpu_timer_create(const char *name, SPARCCPU *cpu,
 362                                   QEMUBHFunc *cb, uint32_t frequency,
 363                                   uint64_t disabled_mask, uint64_t npt_mask)
 364 {
 365     CPUTimer *timer = g_malloc0(sizeof (CPUTimer));
 366
 367     timer->name = name;
 368     timer->frequency = frequency;
 369     timer->disabled_mask = disabled_mask;
 370     timer->npt_mask = npt_mask;
 371
 372     timer->disabled = 1;
 373     timer->npt = 1;
 374     timer->clock_offset = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 375
 376     timer->qtimer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cb, cpu);
 377
 378     return timer;
 379 }
 380
 381 static void cpu_timer_reset(CPUTimer *timer)
 382 {
 383     timer->disabled = 1;
 384     timer->clock_offset = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 385
 386     timer_del(timer->qtimer);
 387 }
 388
 389 static void main_cpu_reset(void *opaque)
 390 {
 391     ResetData *s = (ResetData *)opaque;
 392     CPUSPARCState *env = &s->cpu->env;
 393     static unsigned int nr_resets;
 394
 395     cpu_reset(CPU(s->cpu));
 396
 397     cpu_timer_reset(env->tick);
 398     cpu_timer_reset(env->stick);
 399     cpu_timer_reset(env->hstick);
 400
 401     env->gregs[1] = 0; // Memory start
 402     env->gregs[2] = ram_size; // Memory size
 403     env->gregs[3] = 0; // Machine description XXX
 404     if (nr_resets++ == 0) {
 405         /* Power on reset */
 406         env->pc = s->prom_addr + 0x20ULL;
 407     } else {
 408         env->pc = s->prom_addr + 0x40ULL;
 409     }
 410     env->npc = env->pc + 4;
 411 }
 412
 413 static void tick_irq(void *opaque)
 414 {
 415     SPARCCPU *cpu = opaque;
 416     CPUSPARCState *env = &cpu->env;
 417
 418     CPUTimer* timer = env->tick;
 419
 420     if (timer->disabled) {
 421         CPUIRQ_DPRINTF("tick_irq: softint disabled\n");
 422         return;
 423     } else {
 424         CPUIRQ_DPRINTF("tick: fire\n");
 425     }
 426
 427     env->softint |= SOFTINT_TIMER;
 428     cpu_kick_irq(cpu);
 429 }
 430
 431 static void stick_irq(void *opaque)
 432 {
 433     SPARCCPU *cpu = opaque;
 434     CPUSPARCState *env = &cpu->env;
 435
 436     CPUTimer* timer = env->stick;
 437
 438     if (timer->disabled) {
 439         CPUIRQ_DPRINTF("stick_irq: softint disabled\n");
 440         return;
 441     } else {
 442         CPUIRQ_DPRINTF("stick: fire\n");
 443     }
 444
 445     env->softint |= SOFTINT_STIMER;
 446     cpu_kick_irq(cpu);
 447 }
 448
 449 static void hstick_irq(void *opaque)
 450 {
 451     SPARCCPU *cpu = opaque;
 452     CPUSPARCState *env = &cpu->env;
 453
 454     CPUTimer* timer = env->hstick;
 455
 456     if (timer->disabled) {
 457         CPUIRQ_DPRINTF("hstick_irq: softint disabled\n");
 458         return;
 459     } else {
 460         CPUIRQ_DPRINTF("hstick: fire\n");
 461     }
 462
 463     env->softint |= SOFTINT_STIMER;
 464     cpu_kick_irq(cpu);
 465 }
 466
 467 static int64_t cpu_to_timer_ticks(int64_t cpu_ticks, uint32_t frequency)
 468 {
 469     return muldiv64(cpu_ticks, get_ticks_per_sec(), frequency);
 470 }
 471
 472 static uint64_t timer_to_cpu_ticks(int64_t timer_ticks, uint32_t frequency)
 473 {
 474     return muldiv64(timer_ticks, frequency, get_ticks_per_sec());
 475 }
 476
 477 void cpu_tick_set_count(CPUTimer *timer, uint64_t count)
 478 {
 479     uint64_t real_count = count & ~timer->npt_mask;
 480     uint64_t npt_bit = count & timer->npt_mask;
 481
 482     int64_t vm_clock_offset = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) -
 483                     cpu_to_timer_ticks(real_count, timer->frequency);
 484
 485     TIMER_DPRINTF("%s set_count count=0x%016lx (npt %s) p=%p\n",
 486                   timer->name, real_count,
 487                   timer->npt ? "disabled" : "enabled", timer);
 488
 489     timer->npt = npt_bit ? 1 : 0;
 490     timer->clock_offset = vm_clock_offset;
 491 }
 492
 493 uint64_t cpu_tick_get_count(CPUTimer *timer)
 494 {
 495     uint64_t real_count = timer_to_cpu_ticks(
 496                     qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - timer->clock_offset,
 497                     timer->frequency);
 498
 499     TIMER_DPRINTF("%s get_count count=0x%016lx (npt %s) p=%p\n",
 500            timer->name, real_count,
 501            timer->npt ? "disabled" : "enabled", timer);
 502
 503     if (timer->npt) {
 504         real_count |= timer->npt_mask;
 505     }
 506
 507     return real_count;
 508 }
 509
 510 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit)
 511 {
 512     int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 513
 514     uint64_t real_limit = limit & ~timer->disabled_mask;
 515     timer->disabled = (limit & timer->disabled_mask) ? 1 : 0;
 516
 517     int64_t expires = cpu_to_timer_ticks(real_limit, timer->frequency) +
 518                     timer->clock_offset;
 519
 520     if (expires < now) {
 521         expires = now + 1;
 522     }
 523
 524     TIMER_DPRINTF("%s set_limit limit=0x%016lx (%s) p=%p "
 525                   "called with limit=0x%016lx at 0x%016lx (delta=0x%016lx)\n",
 526                   timer->name, real_limit,
 527                   timer->disabled?"disabled":"enabled",
 528                   timer, limit,
 529                   timer_to_cpu_ticks(now - timer->clock_offset,
 530                                      timer->frequency),
 531                   timer_to_cpu_ticks(expires - now, timer->frequency));
 532
 533     if (!real_limit) {
 534         TIMER_DPRINTF("%s set_limit limit=ZERO - not starting timer\n",
 535                 timer->name);
 536         timer_del(timer->qtimer);
 537     } else if (timer->disabled) {
 538         timer_del(timer->qtimer);
 539     } else {
 540         timer_mod(timer->qtimer, expires);
 541     }
 542 }
 543
 544 static void isa_irq_handler(void *opaque, int n, int level)
 545 {
 546     static const int isa_irq_to_ivec[16] = {
 547         [1] = 0x29, /* keyboard */
 548         [4] = 0x2b, /* serial */
 549         [6] = 0x27, /* floppy */
 550         [7] = 0x22, /* parallel */
 551         [12] = 0x2a, /* mouse */
 552     };
 553     qemu_irq *irqs = opaque;
 554     int ivec;
 555
 556     assert(n < 16);
 557     ivec = isa_irq_to_ivec[n];
 558     EBUS_DPRINTF("Set ISA IRQ %d level %d -> ivec 0x%x\n", n, level, ivec);
 559     if (ivec) {
 560         qemu_set_irq(irqs[ivec], level);
 561     }
 562 }
 563
 564 /* EBUS (Eight bit bus) bridge */
 565 static ISABus *
 566 pci_ebus_init(PCIBus *bus, int devfn, qemu_irq *irqs)
 567 {
 568     qemu_irq *isa_irq;
 569     PCIDevice *pci_dev;
 570     ISABus *isa_bus;
 571
 572     pci_dev = pci_create_simple(bus, devfn, "ebus");
 573     isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
 574     isa_irq = qemu_allocate_irqs(isa_irq_handler, irqs, 16);
 575     isa_bus_irqs(isa_bus, isa_irq);
 576     return isa_bus;
 577 }
 578
 579 static void pci_ebus_realize(PCIDevice *pci_dev, Error **errp)
 580 {
 581     EbusState *s = DO_UPCAST(EbusState, pci_dev, pci_dev);
 582
 583     if (!isa_bus_new(DEVICE(pci_dev), get_system_memory(),
 584                      pci_address_space_io(pci_dev), errp)) {
 585         return;
 586     }
 587
 588     pci_dev->config[0x04] = 0x06; // command = bus master, pci mem
 589     pci_dev->config[0x05] = 0x00;
 590     pci_dev->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
 591     pci_dev->config[0x07] = 0x03; // status = medium devsel
 592     pci_dev->config[0x09] = 0x00; // programming i/f
 593     pci_dev->config[0x0D] = 0x0a; // latency_timer
 594
 595     memory_region_init_alias(&s->bar0, OBJECT(s), "bar0", get_system_io(),
 596                              0, 0x1000000);
 597     pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0);
 598     memory_region_init_alias(&s->bar1, OBJECT(s), "bar1", get_system_io(),
 599                              0, 0x4000);
 600     pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &s->bar1);
 601 }
 602
 603 static void ebus_class_init(ObjectClass *klass, void *data)
 604 {
 605     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 606
 607     k->realize = pci_ebus_realize;
 608     k->vendor_id = PCI_VENDOR_ID_SUN;
 609     k->device_id = PCI_DEVICE_ID_SUN_EBUS;
 610     k->revision = 0x01;
 611     k->class_id = PCI_CLASS_BRIDGE_OTHER;
 612 }
 613
 614 static const TypeInfo ebus_info = {
 615     .name          = "ebus",
 616     .parent        = TYPE_PCI_DEVICE,
 617     .instance_size = sizeof(EbusState),
 618     .class_init    = ebus_class_init,
 619 };
 620
 621 #define TYPE_OPENPROM "openprom"
 622 #define OPENPROM(obj) OBJECT_CHECK(PROMState, (obj), TYPE_OPENPROM)
 623
 624 typedef struct PROMState {
 625     SysBusDevice parent_obj;
 626
 627     MemoryRegion prom;
 628 } PROMState;
 629
 630 static uint64_t translate_prom_address(void *opaque, uint64_t addr)
 631 {
 632     hwaddr *base_addr = (hwaddr *)opaque;
 633     return addr + *base_addr - PROM_VADDR;
 634 }
 635
 636 /* Boot PROM (OpenBIOS) */
 637 static void prom_init(hwaddr addr, const char *bios_name)
 638 {
 639     DeviceState *dev;
 640     SysBusDevice *s;
 641     char *filename;
 642     int ret;
 643
 644     dev = qdev_create(NULL, TYPE_OPENPROM);
 645     qdev_init_nofail(dev);
 646     s = SYS_BUS_DEVICE(dev);
 647
 648     sysbus_mmio_map(s, 0, addr);
 649
 650     /* load boot prom */
 651     if (bios_name == NULL) {
 652         bios_name = PROM_FILENAME;
 653     }
 654     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 655     if (filename) {
 656         ret = load_elf(filename, translate_prom_address, &addr,
 657                        NULL, NULL, NULL, 1, EM_SPARCV9, 0);
 658         if (ret < 0 || ret > PROM_SIZE_MAX) {
 659             ret = load_image_targphys(filename, addr, PROM_SIZE_MAX);
 660         }
 661         g_free(filename);
 662     } else {
 663         ret = -1;
 664     }
 665     if (ret < 0 || ret > PROM_SIZE_MAX) {
 666         fprintf(stderr, "qemu: could not load prom '%s'\n", bios_name);
 667         exit(1);
 668     }
 669 }
 670
 671 static int prom_init1(SysBusDevice *dev)
 672 {
 673     PROMState *s = OPENPROM(dev);
 674
 675     memory_region_init_ram(&s->prom, OBJECT(s), "sun4u.prom", PROM_SIZE_MAX,
 676                            &error_fatal);
 677     vmstate_register_ram_global(&s->prom);
 678     memory_region_set_readonly(&s->prom, true);
 679     sysbus_init_mmio(dev, &s->prom);
 680     return 0;
 681 }
 682
 683 static Property prom_properties[] = {
 684     {/* end of property list */},
 685 };
 686
 687 static void prom_class_init(ObjectClass *klass, void *data)
 688 {
 689     DeviceClass *dc = DEVICE_CLASS(klass);
 690     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 691
 692     k->init = prom_init1;
 693     dc->props = prom_properties;
 694 }
 695
 696 static const TypeInfo prom_info = {
 697     .name          = TYPE_OPENPROM,
 698     .parent        = TYPE_SYS_BUS_DEVICE,
 699     .instance_size = sizeof(PROMState),
 700     .class_init    = prom_class_init,
 701 };
 702
 703
 704 #define TYPE_SUN4U_MEMORY "memory"
 705 #define SUN4U_RAM(obj) OBJECT_CHECK(RamDevice, (obj), TYPE_SUN4U_MEMORY)
 706
 707 typedef struct RamDevice {
 708     SysBusDevice parent_obj;
 709
 710     MemoryRegion ram;
 711     uint64_t size;
 712 } RamDevice;
 713
 714 /* System RAM */
 715 static int ram_init1(SysBusDevice *dev)
 716 {
 717     RamDevice *d = SUN4U_RAM(dev);
 718
 719     memory_region_init_ram(&d->ram, OBJECT(d), "sun4u.ram", d->size,
 720                            &error_fatal);
 721     vmstate_register_ram_global(&d->ram);
 722     sysbus_init_mmio(dev, &d->ram);
 723     return 0;
 724 }
 725
 726 static void ram_init(hwaddr addr, ram_addr_t RAM_size)
 727 {
 728     DeviceState *dev;
 729     SysBusDevice *s;
 730     RamDevice *d;
 731
 732     /* allocate RAM */
 733     dev = qdev_create(NULL, TYPE_SUN4U_MEMORY);
 734     s = SYS_BUS_DEVICE(dev);
 735
 736     d = SUN4U_RAM(dev);
 737     d->size = RAM_size;
 738     qdev_init_nofail(dev);
 739
 740     sysbus_mmio_map(s, 0, addr);
 741 }
 742
 743 static Property ram_properties[] = {
 744     DEFINE_PROP_UINT64("size", RamDevice, size, 0),
 745     DEFINE_PROP_END_OF_LIST(),
 746 };
 747
 748 static void ram_class_init(ObjectClass *klass, void *data)
 749 {
 750     DeviceClass *dc = DEVICE_CLASS(klass);
 751     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 752
 753     k->init = ram_init1;
 754     dc->props = ram_properties;
 755 }
 756
 757 static const TypeInfo ram_info = {
 758     .name          = TYPE_SUN4U_MEMORY,
 759     .parent        = TYPE_SYS_BUS_DEVICE,
 760     .instance_size = sizeof(RamDevice),
 761     .class_init    = ram_class_init,
 762 };
 763
 764 static SPARCCPU *cpu_devinit(const char *cpu_model, const struct hwdef *hwdef)
 765 {
 766     SPARCCPU *cpu;
 767     CPUSPARCState *env;
 768     ResetData *reset_info;
 769
 770     uint32_t   tick_frequency = 100*1000000;
 771     uint32_t  stick_frequency = 100*1000000;
 772     uint32_t hstick_frequency = 100*1000000;
 773
 774     if (cpu_model == NULL) {
 775         cpu_model = hwdef->default_cpu_model;
 776     }
 777     cpu = cpu_sparc_init(cpu_model);
 778     if (cpu == NULL) {
 779         fprintf(stderr, "Unable to find Sparc CPU definition\n");
 780         exit(1);
 781     }
 782     env = &cpu->env;
 783
 784     env->tick = cpu_timer_create("tick", cpu, tick_irq,
 785                                   tick_frequency, TICK_INT_DIS,
 786                                   TICK_NPT_MASK);
 787
 788     env->stick = cpu_timer_create("stick", cpu, stick_irq,
 789                                    stick_frequency, TICK_INT_DIS,
 790                                    TICK_NPT_MASK);
 791
 792     env->hstick = cpu_timer_create("hstick", cpu, hstick_irq,
 793                                     hstick_frequency, TICK_INT_DIS,
 794                                     TICK_NPT_MASK);
 795
 796     reset_info = g_malloc0(sizeof(ResetData));
 797     reset_info->cpu = cpu;
 798     reset_info->prom_addr = hwdef->prom_addr;
 799     qemu_register_reset(main_cpu_reset, reset_info);
 800
 801     return cpu;
 802 }
 803
 804 static void sun4uv_init(MemoryRegion *address_space_mem,
 805                         MachineState *machine,
 806                         const struct hwdef *hwdef)
 807 {
 808     SPARCCPU *cpu;
 809     Nvram *nvram;
 810     unsigned int i;
 811     uint64_t initrd_addr, initrd_size, kernel_addr, kernel_size, kernel_entry;
 812     PCIBus *pci_bus, *pci_bus2, *pci_bus3;
 813     ISABus *isa_bus;
 814     SysBusDevice *s;
 815     qemu_irq *ivec_irqs, *pbm_irqs;
 816     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 817     DriveInfo *fd[MAX_FD];
 818     FWCfgState *fw_cfg;
 819
 820     /* init CPUs */
 821     cpu = cpu_devinit(machine->cpu_model, hwdef);
 822
 823     /* set up devices */
 824     ram_init(0, machine->ram_size);
 825
 826     prom_init(hwdef->prom_addr, bios_name);
 827
 828     ivec_irqs = qemu_allocate_irqs(cpu_set_ivec_irq, cpu, IVEC_MAX);
 829     pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, ivec_irqs, &pci_bus2,
 830                            &pci_bus3, &pbm_irqs);
 831     pci_vga_init(pci_bus);
 832
 833     // XXX Should be pci_bus3
 834     isa_bus = pci_ebus_init(pci_bus, -1, pbm_irqs);
 835
 836     i = 0;
 837     if (hwdef->console_serial_base) {
 838         serial_mm_init(address_space_mem, hwdef->console_serial_base, 0,
 839                        NULL, 115200, serial_hds[i], DEVICE_BIG_ENDIAN);
 840         i++;
 841     }
 842
 843     serial_hds_isa_init(isa_bus, MAX_SERIAL_PORTS);
 844     parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);
 845
 846     for(i = 0; i < nb_nics; i++)
 847         pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
 848
 849     ide_drive_get(hd, ARRAY_SIZE(hd));
 850
 851     pci_cmd646_ide_init(pci_bus, hd, 1);
 852
 853     isa_create_simple(isa_bus, "i8042");
 854     for(i = 0; i < MAX_FD; i++) {
 855         fd[i] = drive_get(IF_FLOPPY, 0, i);
 856     }
 857     fdctrl_init_isa(isa_bus, fd);
 858
 859     /* Map NVRAM into I/O (ebus) space */
 860     nvram = m48t59_init(NULL, 0, 0, NVRAM_SIZE, 1968, 59);
 861     s = SYS_BUS_DEVICE(nvram);
 862     memory_region_add_subregion(get_system_io(), 0x2000,
 863                                 sysbus_mmio_get_region(s, 0));
 864
 865     initrd_size = 0;
 866     initrd_addr = 0;
 867     kernel_size = sun4u_load_kernel(machine->kernel_filename,
 868                                     machine->initrd_filename,
 869                                     ram_size, &initrd_size, &initrd_addr,
 870                                     &kernel_addr, &kernel_entry);
 871
 872     sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", machine->ram_size,
 873                            machine->boot_order,
 874                            kernel_addr, kernel_size,
 875                            machine->kernel_cmdline,
 876                            initrd_addr, initrd_size,
 877                            /* XXX: need an option to load a NVRAM image */
 878                            0,
 879                            graphic_width, graphic_height, graphic_depth,
 880                            (uint8_t *)&nd_table[0].macaddr);
 881
 882     fw_cfg = fw_cfg_init_io(BIOS_CFG_IOPORT);
 883     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
 884     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 885     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);
 886     fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_entry);
 887     fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 888     if (machine->kernel_cmdline) {
 889         fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,
 890                        strlen(machine->kernel_cmdline) + 1);
 891         fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, machine->kernel_cmdline);
 892     } else {
 893         fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 0);
 894     }
 895     fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
 896     fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 897     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_order[0]);
 898
 899     fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_WIDTH, graphic_width);
 900     fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_HEIGHT, graphic_height);
 901     fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_DEPTH, graphic_depth);
 902
 903     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 904 }
 905
 906 enum {
 907     sun4u_id = 0,
 908     sun4v_id = 64,
 909     niagara_id,
 910 };
 911
 912 static const struct hwdef hwdefs[] = {
 913     /* Sun4u generic PC-like machine */
 914     {
 915         .default_cpu_model = "TI UltraSparc IIi",
 916         .machine_id = sun4u_id,
 917         .prom_addr = 0x1fff0000000ULL,
 918         .console_serial_base = 0,
 919     },
 920     /* Sun4v generic PC-like machine */
 921     {
 922         .default_cpu_model = "Sun UltraSparc T1",
 923         .machine_id = sun4v_id,
 924         .prom_addr = 0x1fff0000000ULL,
 925         .console_serial_base = 0,
 926     },
 927     /* Sun4v generic Niagara machine */
 928     {
 929         .default_cpu_model = "Sun UltraSparc T1",
 930         .machine_id = niagara_id,
 931         .prom_addr = 0xfff0000000ULL,
 932         .console_serial_base = 0xfff0c2c000ULL,
 933     },
 934 };
 935
 936 /* Sun4u hardware initialisation */
 937 static void sun4u_init(MachineState *machine)
 938 {
 939     sun4uv_init(get_system_memory(), machine, &hwdefs[0]);
 940 }
 941
 942 /* Sun4v hardware initialisation */
 943 static void sun4v_init(MachineState *machine)
 944 {
 945     sun4uv_init(get_system_memory(), machine, &hwdefs[1]);
 946 }
 947
 948 /* Niagara hardware initialisation */
 949 static void niagara_init(MachineState *machine)
 950 {
 951     sun4uv_init(get_system_memory(), machine, &hwdefs[2]);
 952 }
 953
 954 static void sun4u_class_init(ObjectClass *oc, void *data)
 955 {
 956     MachineClass *mc = MACHINE_CLASS(oc);
 957
 958     mc->desc = "Sun4u platform";
 959     mc->init = sun4u_init;
 960     mc->max_cpus = 1; /* XXX for now */
 961     mc->is_default = 1;
 962     mc->default_boot_order = "c";
 963 }
 964
 965 static const TypeInfo sun4u_type = {
 966     .name = MACHINE_TYPE_NAME("sun4u"),
 967     .parent = TYPE_MACHINE,
 968     .class_init = sun4u_class_init,
 969 };
 970
 971 static void sun4v_class_init(ObjectClass *oc, void *data)
 972 {
 973     MachineClass *mc = MACHINE_CLASS(oc);
 974
 975     mc->desc = "Sun4v platform";
 976     mc->init = sun4v_init;
 977     mc->max_cpus = 1; /* XXX for now */
 978     mc->default_boot_order = "c";
 979 }
 980
 981 static const TypeInfo sun4v_type = {
 982     .name = MACHINE_TYPE_NAME("sun4v"),
 983     .parent = TYPE_MACHINE,
 984     .class_init = sun4v_class_init,
 985 };
 986
 987 static void niagara_class_init(ObjectClass *oc, void *data)
 988 {
 989     MachineClass *mc = MACHINE_CLASS(oc);
 990
 991     mc->desc = "Sun4v platform, Niagara";
 992     mc->init = niagara_init;
 993     mc->max_cpus = 1; /* XXX for now */
 994     mc->default_boot_order = "c";
 995 }
 996
 997 static const TypeInfo niagara_type = {
 998     .name = MACHINE_TYPE_NAME("Niagara"),
 999     .parent = TYPE_MACHINE,
1000     .class_init = niagara_class_init,
1001 };
1002
1003 static void sun4u_register_types(void)
1004 {
1005     type_register_static(&ebus_info);
1006     type_register_static(&prom_info);
1007     type_register_static(&ram_info);
1008 }
1009
1010 static void sun4u_machine_init(void)
1011 {
1012     type_register_static(&sun4u_type);
1013     type_register_static(&sun4v_type);
1014     type_register_static(&niagara_type);
1015 }
1016
1017 type_init(sun4u_register_types)
1018 machine_init(sun4u_machine_init)