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