LXR qemu/hw/sparc64/niagara.c

   1/*
   2 * QEMU Sun4v/Niagara System Emulator
   3 *
   4 * Copyright (c) 2016 Artyom Tarasenko
   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
  25#include "qemu/osdep.h"
  26#include "qemu/units.h"
  27#include "cpu.h"
  28#include "hw/hw.h"
  29#include "hw/boards.h"
  30#include "hw/char/serial.h"
  31#include "hw/misc/unimp.h"
  32#include "hw/loader.h"
  33#include "hw/sparc/sparc64.h"
  34#include "hw/timer/sun4v-rtc.h"
  35#include "exec/address-spaces.h"
  36#include "sysemu/block-backend.h"
  37#include "qemu/error-report.h"
  38#include "sysemu/qtest.h"
  39
  40
  41typedef struct NiagaraBoardState {
  42    MemoryRegion hv_ram;
  43    MemoryRegion partition_ram;
  44    MemoryRegion nvram;
  45    MemoryRegion md_rom;
  46    MemoryRegion hv_rom;
  47    MemoryRegion vdisk_ram;
  48    MemoryRegion prom;
  49} NiagaraBoardState;
  50
  51#define NIAGARA_HV_RAM_BASE 0x100000ULL
  52#define NIAGARA_HV_RAM_SIZE 0x3f00000ULL /* 63 MiB */
  53
  54#define NIAGARA_PARTITION_RAM_BASE 0x80000000ULL
  55
  56#define NIAGARA_UART_BASE   0x1f10000000ULL
  57
  58#define NIAGARA_NVRAM_BASE  0x1f11000000ULL
  59#define NIAGARA_NVRAM_SIZE  0x2000
  60
  61#define NIAGARA_MD_ROM_BASE 0x1f12000000ULL
  62#define NIAGARA_MD_ROM_SIZE 0x2000
  63
  64#define NIAGARA_HV_ROM_BASE 0x1f12080000ULL
  65#define NIAGARA_HV_ROM_SIZE 0x2000
  66
  67#define NIAGARA_IOBBASE     0x9800000000ULL
  68#define NIAGARA_IOBSIZE     0x0100000000ULL
  69
  70#define NIAGARA_VDISK_BASE  0x1f40000000ULL
  71#define NIAGARA_RTC_BASE    0xfff0c1fff8ULL
  72#define NIAGARA_UART_BASE   0x1f10000000ULL
  73
  74/* Firmware layout
  75 *
  76 * |------------------|
  77 * |   openboot.bin   |
  78 * |------------------| PROM_ADDR + OBP_OFFSET
  79 * |      q.bin       |
  80 * |------------------| PROM_ADDR + Q_OFFSET
  81 * |     reset.bin    |
  82 * |------------------| PROM_ADDR
  83 */
  84#define NIAGARA_PROM_BASE   0xfff0000000ULL
  85#define NIAGARA_Q_OFFSET    0x10000ULL
  86#define NIAGARA_OBP_OFFSET  0x80000ULL
  87#define PROM_SIZE_MAX       (4 * MiB)
  88
  89static void add_rom_or_fail(const char *file, const hwaddr addr)
  90{
  91    /* XXX remove qtest_enabled() check once firmware files are
  92     * in the qemu tree
  93     */
  94    if (!qtest_enabled() && rom_add_file_fixed(file, addr, -1)) {
  95        error_report("Unable to load a firmware for -M niagara");
  96        exit(1);
  97    }
  98
  99}
 100/* Niagara hardware initialisation */
 101static void niagara_init(MachineState *machine)
 102{
 103    NiagaraBoardState *s = g_new(NiagaraBoardState, 1);
 104    DriveInfo *dinfo = drive_get_next(IF_PFLASH);
 105    MemoryRegion *sysmem = get_system_memory();
 106
 107    /* init CPUs */
 108    sparc64_cpu_devinit(machine->cpu_type, NIAGARA_PROM_BASE);
 109    /* set up devices */
 110    memory_region_allocate_system_memory(&s->hv_ram, NULL, "sun4v-hv.ram",
 111                                         NIAGARA_HV_RAM_SIZE);
 112    memory_region_add_subregion(sysmem, NIAGARA_HV_RAM_BASE, &s->hv_ram);
 113
 114    memory_region_allocate_system_memory(&s->partition_ram, NULL,
 115                                         "sun4v-partition.ram",
 116                                         machine->ram_size);
 117    memory_region_add_subregion(sysmem, NIAGARA_PARTITION_RAM_BASE,
 118                                &s->partition_ram);
 119
 120    memory_region_allocate_system_memory(&s->nvram, NULL,
 121                                         "sun4v.nvram", NIAGARA_NVRAM_SIZE);
 122    memory_region_add_subregion(sysmem, NIAGARA_NVRAM_BASE, &s->nvram);
 123    memory_region_allocate_system_memory(&s->md_rom, NULL,
 124                                         "sun4v-md.rom", NIAGARA_MD_ROM_SIZE);
 125    memory_region_add_subregion(sysmem, NIAGARA_MD_ROM_BASE, &s->md_rom);
 126    memory_region_allocate_system_memory(&s->hv_rom, NULL,
 127                                         "sun4v-hv.rom", NIAGARA_HV_ROM_SIZE);
 128    memory_region_add_subregion(sysmem, NIAGARA_HV_ROM_BASE, &s->hv_rom);
 129    memory_region_allocate_system_memory(&s->prom, NULL,
 130                                         "sun4v.prom", PROM_SIZE_MAX);
 131    memory_region_add_subregion(sysmem, NIAGARA_PROM_BASE, &s->prom);
 132
 133    add_rom_or_fail("nvram1", NIAGARA_NVRAM_BASE);
 134    add_rom_or_fail("1up-md.bin", NIAGARA_MD_ROM_BASE);
 135    add_rom_or_fail("1up-hv.bin", NIAGARA_HV_ROM_BASE);
 136
 137    add_rom_or_fail("reset.bin", NIAGARA_PROM_BASE);
 138    add_rom_or_fail("q.bin", NIAGARA_PROM_BASE + NIAGARA_Q_OFFSET);
 139    add_rom_or_fail("openboot.bin", NIAGARA_PROM_BASE + NIAGARA_OBP_OFFSET);
 140
 141    /* the virtual ramdisk is kind of initrd, but it resides
 142       outside of the partition RAM */
 143    if (dinfo) {
 144        BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
 145        int size = blk_getlength(blk);
 146        if (size > 0) {
 147            memory_region_allocate_system_memory(&s->vdisk_ram, NULL,
 148                                                 "sun4v_vdisk.ram", size);
 149            memory_region_add_subregion(get_system_memory(),
 150                                        NIAGARA_VDISK_BASE, &s->vdisk_ram);
 151            dinfo->is_default = 1;
 152            rom_add_file_fixed(blk_bs(blk)->filename, NIAGARA_VDISK_BASE, -1);
 153        } else {
 154            error_report("could not load ram disk '%s'",
 155                         blk_bs(blk)->filename);
 156            exit(1);
 157        }
 158    }
 159    if (serial_hd(0)) {
 160        serial_mm_init(sysmem, NIAGARA_UART_BASE, 0, NULL, 115200,
 161                       serial_hd(0), DEVICE_BIG_ENDIAN);
 162    }
 163    create_unimplemented_device("sun4v-iob", NIAGARA_IOBBASE, NIAGARA_IOBSIZE);
 164    sun4v_rtc_init(NIAGARA_RTC_BASE);
 165}
 166
 167static void niagara_class_init(ObjectClass *oc, void *data)
 168{
 169    MachineClass *mc = MACHINE_CLASS(oc);
 170
 171    mc->desc = "Sun4v platform, Niagara";
 172    mc->init = niagara_init;
 173    mc->max_cpus = 1; /* XXX for now */
 174    mc->default_boot_order = "c";
 175    mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Sun-UltraSparc-T1");
 176}
 177
 178static const TypeInfo niagara_type = {
 179    .name = MACHINE_TYPE_NAME("niagara"),
 180    .parent = TYPE_MACHINE,
 181    .class_init = niagara_class_init,
 182};
 183
 184static void niagara_register_types(void)
 185{
 186    type_register_static(&niagara_type);
 187}
 188
 189type_init(niagara_register_types)
 190