qemu/hw/ppc/e500.c
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   1/*
   2 * QEMU PowerPC e500-based platforms
   3 *
   4 * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved.
   5 *
   6 * Author: Yu Liu,     <yu.liu@freescale.com>
   7 *
   8 * This file is derived from hw/ppc440_bamboo.c,
   9 * the copyright for that material belongs to the original owners.
  10 *
  11 * This is free software; you can redistribute it and/or modify
  12 * it under the terms of  the GNU General  Public License as published by
  13 * the Free Software Foundation;  either version 2 of the  License, or
  14 * (at your option) any later version.
  15 */
  16
  17#include "config.h"
  18#include "qemu-common.h"
  19#include "e500.h"
  20#include "e500-ccsr.h"
  21#include "net/net.h"
  22#include "qemu/config-file.h"
  23#include "hw/hw.h"
  24#include "hw/char/serial.h"
  25#include "hw/pci/pci.h"
  26#include "hw/boards.h"
  27#include "sysemu/sysemu.h"
  28#include "sysemu/kvm.h"
  29#include "kvm_ppc.h"
  30#include "sysemu/device_tree.h"
  31#include "hw/ppc/openpic.h"
  32#include "hw/ppc/ppc.h"
  33#include "hw/loader.h"
  34#include "elf.h"
  35#include "hw/sysbus.h"
  36#include "exec/address-spaces.h"
  37#include "qemu/host-utils.h"
  38#include "hw/pci-host/ppce500.h"
  39
  40#define EPAPR_MAGIC                (0x45504150)
  41#define BINARY_DEVICE_TREE_FILE    "mpc8544ds.dtb"
  42#define UIMAGE_LOAD_BASE           0
  43#define DTC_LOAD_PAD               0x1800000
  44#define DTC_PAD_MASK               0xFFFFF
  45#define DTB_MAX_SIZE               (8 * 1024 * 1024)
  46#define INITRD_LOAD_PAD            0x2000000
  47#define INITRD_PAD_MASK            0xFFFFFF
  48
  49#define RAM_SIZES_ALIGN            (64UL << 20)
  50
  51/* TODO: parameterize */
  52#define MPC8544_CCSRBAR_BASE       0xE0000000ULL
  53#define MPC8544_CCSRBAR_SIZE       0x00100000ULL
  54#define MPC8544_MPIC_REGS_OFFSET   0x40000ULL
  55#define MPC8544_MSI_REGS_OFFSET   0x41600ULL
  56#define MPC8544_SERIAL0_REGS_OFFSET 0x4500ULL
  57#define MPC8544_SERIAL1_REGS_OFFSET 0x4600ULL
  58#define MPC8544_PCI_REGS_OFFSET    0x8000ULL
  59#define MPC8544_PCI_REGS_BASE      (MPC8544_CCSRBAR_BASE + \
  60                                    MPC8544_PCI_REGS_OFFSET)
  61#define MPC8544_PCI_REGS_SIZE      0x1000ULL
  62#define MPC8544_PCI_IO             0xE1000000ULL
  63#define MPC8544_UTIL_OFFSET        0xe0000ULL
  64#define MPC8544_SPIN_BASE          0xEF000000ULL
  65
  66struct boot_info
  67{
  68    uint32_t dt_base;
  69    uint32_t dt_size;
  70    uint32_t entry;
  71};
  72
  73static uint32_t *pci_map_create(void *fdt, uint32_t mpic, int first_slot,
  74                                int nr_slots, int *len)
  75{
  76    int i = 0;
  77    int slot;
  78    int pci_irq;
  79    int host_irq;
  80    int last_slot = first_slot + nr_slots;
  81    uint32_t *pci_map;
  82
  83    *len = nr_slots * 4 * 7 * sizeof(uint32_t);
  84    pci_map = g_malloc(*len);
  85
  86    for (slot = first_slot; slot < last_slot; slot++) {
  87        for (pci_irq = 0; pci_irq < 4; pci_irq++) {
  88            pci_map[i++] = cpu_to_be32(slot << 11);
  89            pci_map[i++] = cpu_to_be32(0x0);
  90            pci_map[i++] = cpu_to_be32(0x0);
  91            pci_map[i++] = cpu_to_be32(pci_irq + 1);
  92            pci_map[i++] = cpu_to_be32(mpic);
  93            host_irq = ppce500_pci_map_irq_slot(slot, pci_irq);
  94            pci_map[i++] = cpu_to_be32(host_irq + 1);
  95            pci_map[i++] = cpu_to_be32(0x1);
  96        }
  97    }
  98
  99    assert((i * sizeof(uint32_t)) == *len);
 100
 101    return pci_map;
 102}
 103
 104static void dt_serial_create(void *fdt, unsigned long long offset,
 105                             const char *soc, const char *mpic,
 106                             const char *alias, int idx, bool defcon)
 107{
 108    char ser[128];
 109
 110    snprintf(ser, sizeof(ser), "%s/serial@%llx", soc, offset);
 111    qemu_devtree_add_subnode(fdt, ser);
 112    qemu_devtree_setprop_string(fdt, ser, "device_type", "serial");
 113    qemu_devtree_setprop_string(fdt, ser, "compatible", "ns16550");
 114    qemu_devtree_setprop_cells(fdt, ser, "reg", offset, 0x100);
 115    qemu_devtree_setprop_cell(fdt, ser, "cell-index", idx);
 116    qemu_devtree_setprop_cell(fdt, ser, "clock-frequency", 0);
 117    qemu_devtree_setprop_cells(fdt, ser, "interrupts", 42, 2);
 118    qemu_devtree_setprop_phandle(fdt, ser, "interrupt-parent", mpic);
 119    qemu_devtree_setprop_string(fdt, "/aliases", alias, ser);
 120
 121    if (defcon) {
 122        qemu_devtree_setprop_string(fdt, "/chosen", "linux,stdout-path", ser);
 123    }
 124}
 125
 126static int ppce500_load_device_tree(CPUPPCState *env,
 127                                    PPCE500Params *params,
 128                                    hwaddr addr,
 129                                    hwaddr initrd_base,
 130                                    hwaddr initrd_size)
 131{
 132    int ret = -1;
 133    uint64_t mem_reg_property[] = { 0, cpu_to_be64(params->ram_size) };
 134    int fdt_size;
 135    void *fdt;
 136    uint8_t hypercall[16];
 137    uint32_t clock_freq = 400000000;
 138    uint32_t tb_freq = 400000000;
 139    int i;
 140    char compatible_sb[] = "fsl,mpc8544-immr\0simple-bus";
 141    char soc[128];
 142    char mpic[128];
 143    uint32_t mpic_ph;
 144    uint32_t msi_ph;
 145    char gutil[128];
 146    char pci[128];
 147    char msi[128];
 148    uint32_t *pci_map = NULL;
 149    int len;
 150    uint32_t pci_ranges[14] =
 151        {
 152            0x2000000, 0x0, 0xc0000000,
 153            0x0, 0xc0000000,
 154            0x0, 0x20000000,
 155
 156            0x1000000, 0x0, 0x0,
 157            0x0, 0xe1000000,
 158            0x0, 0x10000,
 159        };
 160    QemuOpts *machine_opts = qemu_get_machine_opts();
 161    const char *dtb_file = qemu_opt_get(machine_opts, "dtb");
 162    const char *toplevel_compat = qemu_opt_get(machine_opts, "dt_compatible");
 163
 164    if (dtb_file) {
 165        char *filename;
 166        filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_file);
 167        if (!filename) {
 168            goto out;
 169        }
 170
 171        fdt = load_device_tree(filename, &fdt_size);
 172        if (!fdt) {
 173            goto out;
 174        }
 175        goto done;
 176    }
 177
 178    fdt = create_device_tree(&fdt_size);
 179    if (fdt == NULL) {
 180        goto out;
 181    }
 182
 183    /* Manipulate device tree in memory. */
 184    qemu_devtree_setprop_cell(fdt, "/", "#address-cells", 2);
 185    qemu_devtree_setprop_cell(fdt, "/", "#size-cells", 2);
 186
 187    qemu_devtree_add_subnode(fdt, "/memory");
 188    qemu_devtree_setprop_string(fdt, "/memory", "device_type", "memory");
 189    qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property,
 190                         sizeof(mem_reg_property));
 191
 192    qemu_devtree_add_subnode(fdt, "/chosen");
 193    if (initrd_size) {
 194        ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
 195                                        initrd_base);
 196        if (ret < 0) {
 197            fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
 198        }
 199
 200        ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end",
 201                                        (initrd_base + initrd_size));
 202        if (ret < 0) {
 203            fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
 204        }
 205    }
 206
 207    ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
 208                                      params->kernel_cmdline);
 209    if (ret < 0)
 210        fprintf(stderr, "couldn't set /chosen/bootargs\n");
 211
 212    if (kvm_enabled()) {
 213        /* Read out host's frequencies */
 214        clock_freq = kvmppc_get_clockfreq();
 215        tb_freq = kvmppc_get_tbfreq();
 216
 217        /* indicate KVM hypercall interface */
 218        qemu_devtree_add_subnode(fdt, "/hypervisor");
 219        qemu_devtree_setprop_string(fdt, "/hypervisor", "compatible",
 220                                    "linux,kvm");
 221        kvmppc_get_hypercall(env, hypercall, sizeof(hypercall));
 222        qemu_devtree_setprop(fdt, "/hypervisor", "hcall-instructions",
 223                             hypercall, sizeof(hypercall));
 224        /* if KVM supports the idle hcall, set property indicating this */
 225        if (kvmppc_get_hasidle(env)) {
 226            qemu_devtree_setprop(fdt, "/hypervisor", "has-idle", NULL, 0);
 227        }
 228    }
 229
 230    /* Create CPU nodes */
 231    qemu_devtree_add_subnode(fdt, "/cpus");
 232    qemu_devtree_setprop_cell(fdt, "/cpus", "#address-cells", 1);
 233    qemu_devtree_setprop_cell(fdt, "/cpus", "#size-cells", 0);
 234
 235    /* We need to generate the cpu nodes in reverse order, so Linux can pick
 236       the first node as boot node and be happy */
 237    for (i = smp_cpus - 1; i >= 0; i--) {
 238        CPUState *cpu;
 239        char cpu_name[128];
 240        uint64_t cpu_release_addr = MPC8544_SPIN_BASE + (i * 0x20);
 241
 242        cpu = qemu_get_cpu(i);
 243        if (cpu == NULL) {
 244            continue;
 245        }
 246        env = cpu->env_ptr;
 247
 248        snprintf(cpu_name, sizeof(cpu_name), "/cpus/PowerPC,8544@%x",
 249                 cpu->cpu_index);
 250        qemu_devtree_add_subnode(fdt, cpu_name);
 251        qemu_devtree_setprop_cell(fdt, cpu_name, "clock-frequency", clock_freq);
 252        qemu_devtree_setprop_cell(fdt, cpu_name, "timebase-frequency", tb_freq);
 253        qemu_devtree_setprop_string(fdt, cpu_name, "device_type", "cpu");
 254        qemu_devtree_setprop_cell(fdt, cpu_name, "reg", cpu->cpu_index);
 255        qemu_devtree_setprop_cell(fdt, cpu_name, "d-cache-line-size",
 256                                  env->dcache_line_size);
 257        qemu_devtree_setprop_cell(fdt, cpu_name, "i-cache-line-size",
 258                                  env->icache_line_size);
 259        qemu_devtree_setprop_cell(fdt, cpu_name, "d-cache-size", 0x8000);
 260        qemu_devtree_setprop_cell(fdt, cpu_name, "i-cache-size", 0x8000);
 261        qemu_devtree_setprop_cell(fdt, cpu_name, "bus-frequency", 0);
 262        if (cpu->cpu_index) {
 263            qemu_devtree_setprop_string(fdt, cpu_name, "status", "disabled");
 264            qemu_devtree_setprop_string(fdt, cpu_name, "enable-method", "spin-table");
 265            qemu_devtree_setprop_u64(fdt, cpu_name, "cpu-release-addr",
 266                                     cpu_release_addr);
 267        } else {
 268            qemu_devtree_setprop_string(fdt, cpu_name, "status", "okay");
 269        }
 270    }
 271
 272    qemu_devtree_add_subnode(fdt, "/aliases");
 273    /* XXX These should go into their respective devices' code */
 274    snprintf(soc, sizeof(soc), "/soc@%llx", MPC8544_CCSRBAR_BASE);
 275    qemu_devtree_add_subnode(fdt, soc);
 276    qemu_devtree_setprop_string(fdt, soc, "device_type", "soc");
 277    qemu_devtree_setprop(fdt, soc, "compatible", compatible_sb,
 278                         sizeof(compatible_sb));
 279    qemu_devtree_setprop_cell(fdt, soc, "#address-cells", 1);
 280    qemu_devtree_setprop_cell(fdt, soc, "#size-cells", 1);
 281    qemu_devtree_setprop_cells(fdt, soc, "ranges", 0x0,
 282                               MPC8544_CCSRBAR_BASE >> 32, MPC8544_CCSRBAR_BASE,
 283                               MPC8544_CCSRBAR_SIZE);
 284    /* XXX should contain a reasonable value */
 285    qemu_devtree_setprop_cell(fdt, soc, "bus-frequency", 0);
 286
 287    snprintf(mpic, sizeof(mpic), "%s/pic@%llx", soc, MPC8544_MPIC_REGS_OFFSET);
 288    qemu_devtree_add_subnode(fdt, mpic);
 289    qemu_devtree_setprop_string(fdt, mpic, "device_type", "open-pic");
 290    qemu_devtree_setprop_string(fdt, mpic, "compatible", "fsl,mpic");
 291    qemu_devtree_setprop_cells(fdt, mpic, "reg", MPC8544_MPIC_REGS_OFFSET,
 292                               0x40000);
 293    qemu_devtree_setprop_cell(fdt, mpic, "#address-cells", 0);
 294    qemu_devtree_setprop_cell(fdt, mpic, "#interrupt-cells", 2);
 295    mpic_ph = qemu_devtree_alloc_phandle(fdt);
 296    qemu_devtree_setprop_cell(fdt, mpic, "phandle", mpic_ph);
 297    qemu_devtree_setprop_cell(fdt, mpic, "linux,phandle", mpic_ph);
 298    qemu_devtree_setprop(fdt, mpic, "interrupt-controller", NULL, 0);
 299
 300    /*
 301     * We have to generate ser1 first, because Linux takes the first
 302     * device it finds in the dt as serial output device. And we generate
 303     * devices in reverse order to the dt.
 304     */
 305    dt_serial_create(fdt, MPC8544_SERIAL1_REGS_OFFSET,
 306                     soc, mpic, "serial1", 1, false);
 307    dt_serial_create(fdt, MPC8544_SERIAL0_REGS_OFFSET,
 308                     soc, mpic, "serial0", 0, true);
 309
 310    snprintf(gutil, sizeof(gutil), "%s/global-utilities@%llx", soc,
 311             MPC8544_UTIL_OFFSET);
 312    qemu_devtree_add_subnode(fdt, gutil);
 313    qemu_devtree_setprop_string(fdt, gutil, "compatible", "fsl,mpc8544-guts");
 314    qemu_devtree_setprop_cells(fdt, gutil, "reg", MPC8544_UTIL_OFFSET, 0x1000);
 315    qemu_devtree_setprop(fdt, gutil, "fsl,has-rstcr", NULL, 0);
 316
 317    snprintf(msi, sizeof(msi), "/%s/msi@%llx", soc, MPC8544_MSI_REGS_OFFSET);
 318    qemu_devtree_add_subnode(fdt, msi);
 319    qemu_devtree_setprop_string(fdt, msi, "compatible", "fsl,mpic-msi");
 320    qemu_devtree_setprop_cells(fdt, msi, "reg", MPC8544_MSI_REGS_OFFSET, 0x200);
 321    msi_ph = qemu_devtree_alloc_phandle(fdt);
 322    qemu_devtree_setprop_cells(fdt, msi, "msi-available-ranges", 0x0, 0x100);
 323    qemu_devtree_setprop_phandle(fdt, msi, "interrupt-parent", mpic);
 324    qemu_devtree_setprop_cells(fdt, msi, "interrupts",
 325        0xe0, 0x0,
 326        0xe1, 0x0,
 327        0xe2, 0x0,
 328        0xe3, 0x0,
 329        0xe4, 0x0,
 330        0xe5, 0x0,
 331        0xe6, 0x0,
 332        0xe7, 0x0);
 333    qemu_devtree_setprop_cell(fdt, msi, "phandle", msi_ph);
 334    qemu_devtree_setprop_cell(fdt, msi, "linux,phandle", msi_ph);
 335
 336    snprintf(pci, sizeof(pci), "/pci@%llx", MPC8544_PCI_REGS_BASE);
 337    qemu_devtree_add_subnode(fdt, pci);
 338    qemu_devtree_setprop_cell(fdt, pci, "cell-index", 0);
 339    qemu_devtree_setprop_string(fdt, pci, "compatible", "fsl,mpc8540-pci");
 340    qemu_devtree_setprop_string(fdt, pci, "device_type", "pci");
 341    qemu_devtree_setprop_cells(fdt, pci, "interrupt-map-mask", 0xf800, 0x0,
 342                               0x0, 0x7);
 343    pci_map = pci_map_create(fdt, qemu_devtree_get_phandle(fdt, mpic),
 344                             params->pci_first_slot, params->pci_nr_slots,
 345                             &len);
 346    qemu_devtree_setprop(fdt, pci, "interrupt-map", pci_map, len);
 347    qemu_devtree_setprop_phandle(fdt, pci, "interrupt-parent", mpic);
 348    qemu_devtree_setprop_cells(fdt, pci, "interrupts", 24, 2);
 349    qemu_devtree_setprop_cells(fdt, pci, "bus-range", 0, 255);
 350    for (i = 0; i < 14; i++) {
 351        pci_ranges[i] = cpu_to_be32(pci_ranges[i]);
 352    }
 353    qemu_devtree_setprop_cell(fdt, pci, "fsl,msi", msi_ph);
 354    qemu_devtree_setprop(fdt, pci, "ranges", pci_ranges, sizeof(pci_ranges));
 355    qemu_devtree_setprop_cells(fdt, pci, "reg", MPC8544_PCI_REGS_BASE >> 32,
 356                               MPC8544_PCI_REGS_BASE, 0, 0x1000);
 357    qemu_devtree_setprop_cell(fdt, pci, "clock-frequency", 66666666);
 358    qemu_devtree_setprop_cell(fdt, pci, "#interrupt-cells", 1);
 359    qemu_devtree_setprop_cell(fdt, pci, "#size-cells", 2);
 360    qemu_devtree_setprop_cell(fdt, pci, "#address-cells", 3);
 361    qemu_devtree_setprop_string(fdt, "/aliases", "pci0", pci);
 362
 363    params->fixup_devtree(params, fdt);
 364
 365    if (toplevel_compat) {
 366        qemu_devtree_setprop(fdt, "/", "compatible", toplevel_compat,
 367                             strlen(toplevel_compat) + 1);
 368    }
 369
 370done:
 371    qemu_devtree_dumpdtb(fdt, fdt_size);
 372    ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);
 373    if (ret < 0) {
 374        goto out;
 375    }
 376    g_free(fdt);
 377    ret = fdt_size;
 378
 379out:
 380    g_free(pci_map);
 381
 382    return ret;
 383}
 384
 385/* Create -kernel TLB entries for BookE.  */
 386static inline hwaddr booke206_page_size_to_tlb(uint64_t size)
 387{
 388    return 63 - clz64(size >> 10);
 389}
 390
 391static int booke206_initial_map_tsize(CPUPPCState *env)
 392{
 393    struct boot_info *bi = env->load_info;
 394    hwaddr dt_end;
 395    int ps;
 396
 397    /* Our initial TLB entry needs to cover everything from 0 to
 398       the device tree top */
 399    dt_end = bi->dt_base + bi->dt_size;
 400    ps = booke206_page_size_to_tlb(dt_end) + 1;
 401    if (ps & 1) {
 402        /* e500v2 can only do even TLB size bits */
 403        ps++;
 404    }
 405    return ps;
 406}
 407
 408static uint64_t mmubooke_initial_mapsize(CPUPPCState *env)
 409{
 410    int tsize;
 411
 412    tsize = booke206_initial_map_tsize(env);
 413    return (1ULL << 10 << tsize);
 414}
 415
 416static void mmubooke_create_initial_mapping(CPUPPCState *env)
 417{
 418    ppcmas_tlb_t *tlb = booke206_get_tlbm(env, 1, 0, 0);
 419    hwaddr size;
 420    int ps;
 421
 422    ps = booke206_initial_map_tsize(env);
 423    size = (ps << MAS1_TSIZE_SHIFT);
 424    tlb->mas1 = MAS1_VALID | size;
 425    tlb->mas2 = 0;
 426    tlb->mas7_3 = 0;
 427    tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX;
 428
 429    env->tlb_dirty = true;
 430}
 431
 432static void ppce500_cpu_reset_sec(void *opaque)
 433{
 434    PowerPCCPU *cpu = opaque;
 435    CPUState *cs = CPU(cpu);
 436    CPUPPCState *env = &cpu->env;
 437
 438    cpu_reset(cs);
 439
 440    /* Secondary CPU starts in halted state for now. Needs to change when
 441       implementing non-kernel boot. */
 442    cs->halted = 1;
 443    env->exception_index = EXCP_HLT;
 444}
 445
 446static void ppce500_cpu_reset(void *opaque)
 447{
 448    PowerPCCPU *cpu = opaque;
 449    CPUState *cs = CPU(cpu);
 450    CPUPPCState *env = &cpu->env;
 451    struct boot_info *bi = env->load_info;
 452
 453    cpu_reset(cs);
 454
 455    /* Set initial guest state. */
 456    cs->halted = 0;
 457    env->gpr[1] = (16<<20) - 8;
 458    env->gpr[3] = bi->dt_base;
 459    env->gpr[4] = 0;
 460    env->gpr[5] = 0;
 461    env->gpr[6] = EPAPR_MAGIC;
 462    env->gpr[7] = mmubooke_initial_mapsize(env);
 463    env->gpr[8] = 0;
 464    env->gpr[9] = 0;
 465    env->nip = bi->entry;
 466    mmubooke_create_initial_mapping(env);
 467}
 468
 469static DeviceState *ppce500_init_mpic_qemu(PPCE500Params *params,
 470                                           qemu_irq **irqs)
 471{
 472    DeviceState *dev;
 473    SysBusDevice *s;
 474    int i, j, k;
 475
 476    dev = qdev_create(NULL, TYPE_OPENPIC);
 477    qdev_prop_set_uint32(dev, "model", params->mpic_version);
 478    qdev_prop_set_uint32(dev, "nb_cpus", smp_cpus);
 479
 480    qdev_init_nofail(dev);
 481    s = SYS_BUS_DEVICE(dev);
 482
 483    k = 0;
 484    for (i = 0; i < smp_cpus; i++) {
 485        for (j = 0; j < OPENPIC_OUTPUT_NB; j++) {
 486            sysbus_connect_irq(s, k++, irqs[i][j]);
 487        }
 488    }
 489
 490    return dev;
 491}
 492
 493static DeviceState *ppce500_init_mpic_kvm(PPCE500Params *params,
 494                                          qemu_irq **irqs)
 495{
 496    DeviceState *dev;
 497    CPUState *cs;
 498    int r;
 499
 500    dev = qdev_create(NULL, TYPE_KVM_OPENPIC);
 501    qdev_prop_set_uint32(dev, "model", params->mpic_version);
 502
 503    r = qdev_init(dev);
 504    if (r) {
 505        return NULL;
 506    }
 507
 508    for (cs = first_cpu; cs != NULL; cs = cs->next_cpu) {
 509        if (kvm_openpic_connect_vcpu(dev, cs)) {
 510            fprintf(stderr, "%s: failed to connect vcpu to irqchip\n",
 511                    __func__);
 512            abort();
 513        }
 514    }
 515
 516    return dev;
 517}
 518
 519static qemu_irq *ppce500_init_mpic(PPCE500Params *params, MemoryRegion *ccsr,
 520                                   qemu_irq **irqs)
 521{
 522    qemu_irq *mpic;
 523    DeviceState *dev = NULL;
 524    SysBusDevice *s;
 525    int i;
 526
 527    mpic = g_new(qemu_irq, 256);
 528
 529    if (kvm_enabled()) {
 530        QemuOpts *machine_opts = qemu_get_machine_opts();
 531        bool irqchip_allowed = qemu_opt_get_bool(machine_opts,
 532                                                "kernel_irqchip", true);
 533        bool irqchip_required = qemu_opt_get_bool(machine_opts,
 534                                                  "kernel_irqchip", false);
 535
 536        if (irqchip_allowed) {
 537            dev = ppce500_init_mpic_kvm(params, irqs);
 538        }
 539
 540        if (irqchip_required && !dev) {
 541            fprintf(stderr, "%s: irqchip requested but unavailable\n",
 542                    __func__);
 543            abort();
 544        }
 545    }
 546
 547    if (!dev) {
 548        dev = ppce500_init_mpic_qemu(params, irqs);
 549    }
 550
 551    for (i = 0; i < 256; i++) {
 552        mpic[i] = qdev_get_gpio_in(dev, i);
 553    }
 554
 555    s = SYS_BUS_DEVICE(dev);
 556    memory_region_add_subregion(ccsr, MPC8544_MPIC_REGS_OFFSET,
 557                                s->mmio[0].memory);
 558
 559    return mpic;
 560}
 561
 562void ppce500_init(PPCE500Params *params)
 563{
 564    MemoryRegion *address_space_mem = get_system_memory();
 565    MemoryRegion *ram = g_new(MemoryRegion, 1);
 566    PCIBus *pci_bus;
 567    CPUPPCState *env = NULL;
 568    uint64_t elf_entry;
 569    uint64_t elf_lowaddr;
 570    hwaddr entry=0;
 571    hwaddr loadaddr=UIMAGE_LOAD_BASE;
 572    target_long kernel_size=0;
 573    target_ulong dt_base = 0;
 574    target_ulong initrd_base = 0;
 575    target_long initrd_size = 0;
 576    target_ulong cur_base = 0;
 577    int i;
 578    unsigned int pci_irq_nrs[4] = {1, 2, 3, 4};
 579    qemu_irq **irqs, *mpic;
 580    DeviceState *dev;
 581    CPUPPCState *firstenv = NULL;
 582    MemoryRegion *ccsr_addr_space;
 583    SysBusDevice *s;
 584    PPCE500CCSRState *ccsr;
 585
 586    /* Setup CPUs */
 587    if (params->cpu_model == NULL) {
 588        params->cpu_model = "e500v2_v30";
 589    }
 590
 591    irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));
 592    irqs[0] = g_malloc0(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
 593    for (i = 0; i < smp_cpus; i++) {
 594        PowerPCCPU *cpu;
 595        CPUState *cs;
 596        qemu_irq *input;
 597
 598        cpu = cpu_ppc_init(params->cpu_model);
 599        if (cpu == NULL) {
 600            fprintf(stderr, "Unable to initialize CPU!\n");
 601            exit(1);
 602        }
 603        env = &cpu->env;
 604        cs = CPU(cpu);
 605
 606        if (!firstenv) {
 607            firstenv = env;
 608        }
 609
 610        irqs[i] = irqs[0] + (i * OPENPIC_OUTPUT_NB);
 611        input = (qemu_irq *)env->irq_inputs;
 612        irqs[i][OPENPIC_OUTPUT_INT] = input[PPCE500_INPUT_INT];
 613        irqs[i][OPENPIC_OUTPUT_CINT] = input[PPCE500_INPUT_CINT];
 614        env->spr[SPR_BOOKE_PIR] = cs->cpu_index = i;
 615        env->mpic_iack = MPC8544_CCSRBAR_BASE +
 616                         MPC8544_MPIC_REGS_OFFSET + 0xa0;
 617
 618        ppc_booke_timers_init(cpu, 400000000, PPC_TIMER_E500);
 619
 620        /* Register reset handler */
 621        if (!i) {
 622            /* Primary CPU */
 623            struct boot_info *boot_info;
 624            boot_info = g_malloc0(sizeof(struct boot_info));
 625            qemu_register_reset(ppce500_cpu_reset, cpu);
 626            env->load_info = boot_info;
 627        } else {
 628            /* Secondary CPUs */
 629            qemu_register_reset(ppce500_cpu_reset_sec, cpu);
 630        }
 631    }
 632
 633    env = firstenv;
 634
 635    /* Fixup Memory size on a alignment boundary */
 636    ram_size &= ~(RAM_SIZES_ALIGN - 1);
 637    params->ram_size = ram_size;
 638
 639    /* Register Memory */
 640    memory_region_init_ram(ram, NULL, "mpc8544ds.ram", ram_size);
 641    vmstate_register_ram_global(ram);
 642    memory_region_add_subregion(address_space_mem, 0, ram);
 643
 644    dev = qdev_create(NULL, "e500-ccsr");
 645    object_property_add_child(qdev_get_machine(), "e500-ccsr",
 646                              OBJECT(dev), NULL);
 647    qdev_init_nofail(dev);
 648    ccsr = CCSR(dev);
 649    ccsr_addr_space = &ccsr->ccsr_space;
 650    memory_region_add_subregion(address_space_mem, MPC8544_CCSRBAR_BASE,
 651                                ccsr_addr_space);
 652
 653    mpic = ppce500_init_mpic(params, ccsr_addr_space, irqs);
 654
 655    /* Serial */
 656    if (serial_hds[0]) {
 657        serial_mm_init(ccsr_addr_space, MPC8544_SERIAL0_REGS_OFFSET,
 658                       0, mpic[42], 399193,
 659                       serial_hds[0], DEVICE_BIG_ENDIAN);
 660    }
 661
 662    if (serial_hds[1]) {
 663        serial_mm_init(ccsr_addr_space, MPC8544_SERIAL1_REGS_OFFSET,
 664                       0, mpic[42], 399193,
 665                       serial_hds[1], DEVICE_BIG_ENDIAN);
 666    }
 667
 668    /* General Utility device */
 669    dev = qdev_create(NULL, "mpc8544-guts");
 670    qdev_init_nofail(dev);
 671    s = SYS_BUS_DEVICE(dev);
 672    memory_region_add_subregion(ccsr_addr_space, MPC8544_UTIL_OFFSET,
 673                                sysbus_mmio_get_region(s, 0));
 674
 675    /* PCI */
 676    dev = qdev_create(NULL, "e500-pcihost");
 677    qdev_prop_set_uint32(dev, "first_slot", params->pci_first_slot);
 678    qdev_init_nofail(dev);
 679    s = SYS_BUS_DEVICE(dev);
 680    sysbus_connect_irq(s, 0, mpic[pci_irq_nrs[0]]);
 681    sysbus_connect_irq(s, 1, mpic[pci_irq_nrs[1]]);
 682    sysbus_connect_irq(s, 2, mpic[pci_irq_nrs[2]]);
 683    sysbus_connect_irq(s, 3, mpic[pci_irq_nrs[3]]);
 684    memory_region_add_subregion(ccsr_addr_space, MPC8544_PCI_REGS_OFFSET,
 685                                sysbus_mmio_get_region(s, 0));
 686
 687    pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
 688    if (!pci_bus)
 689        printf("couldn't create PCI controller!\n");
 690
 691    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, MPC8544_PCI_IO);
 692
 693    if (pci_bus) {
 694        /* Register network interfaces. */
 695        for (i = 0; i < nb_nics; i++) {
 696            pci_nic_init_nofail(&nd_table[i], pci_bus, "virtio", NULL);
 697        }
 698    }
 699
 700    /* Register spinning region */
 701    sysbus_create_simple("e500-spin", MPC8544_SPIN_BASE, NULL);
 702
 703    /* Load kernel. */
 704    if (params->kernel_filename) {
 705        kernel_size = load_uimage(params->kernel_filename, &entry,
 706                                  &loadaddr, NULL);
 707        if (kernel_size < 0) {
 708            kernel_size = load_elf(params->kernel_filename, NULL, NULL,
 709                                   &elf_entry, &elf_lowaddr, NULL, 1,
 710                                   ELF_MACHINE, 0);
 711            entry = elf_entry;
 712            loadaddr = elf_lowaddr;
 713        }
 714        /* XXX try again as binary */
 715        if (kernel_size < 0) {
 716            fprintf(stderr, "qemu: could not load kernel '%s'\n",
 717                    params->kernel_filename);
 718            exit(1);
 719        }
 720
 721        cur_base = loadaddr + kernel_size;
 722
 723        /* Reserve space for dtb */
 724        dt_base = (cur_base + DTC_LOAD_PAD) & ~DTC_PAD_MASK;
 725        cur_base += DTB_MAX_SIZE;
 726    }
 727
 728    /* Load initrd. */
 729    if (params->initrd_filename) {
 730        initrd_base = (cur_base + INITRD_LOAD_PAD) & ~INITRD_PAD_MASK;
 731        initrd_size = load_image_targphys(params->initrd_filename, initrd_base,
 732                                          ram_size - initrd_base);
 733
 734        if (initrd_size < 0) {
 735            fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
 736                    params->initrd_filename);
 737            exit(1);
 738        }
 739
 740        cur_base = initrd_base + initrd_size;
 741    }
 742
 743    /* If we're loading a kernel directly, we must load the device tree too. */
 744    if (params->kernel_filename) {
 745        struct boot_info *boot_info;
 746        int dt_size;
 747
 748        dt_size = ppce500_load_device_tree(env, params, dt_base, initrd_base,
 749                                           initrd_size);
 750        if (dt_size < 0) {
 751            fprintf(stderr, "couldn't load device tree\n");
 752            exit(1);
 753        }
 754        assert(dt_size < DTB_MAX_SIZE);
 755
 756        boot_info = env->load_info;
 757        boot_info->entry = entry;
 758        boot_info->dt_base = dt_base;
 759        boot_info->dt_size = dt_size;
 760    }
 761
 762    if (kvm_enabled()) {
 763        kvmppc_init();
 764    }
 765}
 766
 767static int e500_ccsr_initfn(SysBusDevice *dev)
 768{
 769    PPCE500CCSRState *ccsr;
 770
 771    ccsr = CCSR(dev);
 772    memory_region_init(&ccsr->ccsr_space, OBJECT(ccsr), "e500-ccsr",
 773                       MPC8544_CCSRBAR_SIZE);
 774    return 0;
 775}
 776
 777static void e500_ccsr_class_init(ObjectClass *klass, void *data)
 778{
 779    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 780    k->init = e500_ccsr_initfn;
 781}
 782
 783static const TypeInfo e500_ccsr_info = {
 784    .name          = TYPE_CCSR,
 785    .parent        = TYPE_SYS_BUS_DEVICE,
 786    .instance_size = sizeof(PPCE500CCSRState),
 787    .class_init    = e500_ccsr_class_init,
 788};
 789
 790static void e500_register_types(void)
 791{
 792    type_register_static(&e500_ccsr_info);
 793}
 794
 795type_init(e500_register_types)
 796