/*
* QEMU Sun4v/Niagara System Emulator
*
* Copyright (c) 2016 Artyom Tarasenko
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "cpu.h"
#include "hw/boards.h"
#include "hw/char/serial.h"
#include "hw/misc/unimp.h"
#include "hw/loader.h"
#include "hw/sparc/sparc64.h"
#include "hw/rtc/sun4v-rtc.h"
#include "sysemu/block-backend.h"
#include "qemu/error-report.h"
#include "sysemu/qtest.h"
#include "sysemu/sysemu.h"
#include "qapi/error.h"
typedef struct NiagaraBoardState {
MemoryRegion hv_ram;
MemoryRegion nvram;
MemoryRegion md_rom;
MemoryRegion hv_rom;
MemoryRegion vdisk_ram;
MemoryRegion prom;
} NiagaraBoardState;
#define NIAGARA_HV_RAM_BASE 0x100000ULL
#define NIAGARA_HV_RAM_SIZE 0x3f00000ULL /* 63 MiB */
#define NIAGARA_PARTITION_RAM_BASE 0x80000000ULL
#define NIAGARA_UART_BASE 0x1f10000000ULL
#define NIAGARA_NVRAM_BASE 0x1f11000000ULL
#define NIAGARA_NVRAM_SIZE 0x2000
#define NIAGARA_MD_ROM_BASE 0x1f12000000ULL
#define NIAGARA_MD_ROM_SIZE 0x2000
#define NIAGARA_HV_ROM_BASE 0x1f12080000ULL
#define NIAGARA_HV_ROM_SIZE 0x2000
#define NIAGARA_IOBBASE 0x9800000000ULL
#define NIAGARA_IOBSIZE 0x0100000000ULL
#define NIAGARA_VDISK_BASE 0x1f40000000ULL
#define NIAGARA_RTC_BASE 0xfff0c1fff8ULL
/* Firmware layout
*
* |------------------|
* | openboot.bin |
* |------------------| PROM_ADDR + OBP_OFFSET
* | q.bin |
* |------------------| PROM_ADDR + Q_OFFSET
* | reset.bin |
* |------------------| PROM_ADDR
*/
#define NIAGARA_PROM_BASE 0xfff0000000ULL
#define NIAGARA_Q_OFFSET 0x10000ULL
#define NIAGARA_OBP_OFFSET 0x80000ULL
#define PROM_SIZE_MAX (4 * MiB)
static void add_rom_or_fail(const char *file, const hwaddr addr)
{
/* XXX remove qtest_enabled() check once firmware files are
* in the qemu tree
*/
if (!qtest_enabled() && rom_add_file_fixed(file, addr, -1)) {
error_report("Unable to load a firmware for -M niagara");
exit(1);
}
}
/* Niagara hardware initialisation */
static void niagara_init(MachineState *machine)
{
NiagaraBoardState *s = g_new(NiagaraBoardState, 1);
DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);
MemoryRegion *sysmem = get_system_memory();
/* init CPUs */
sparc64_cpu_devinit(machine->cpu_type, NIAGARA_PROM_BASE);
/* set up devices */
memory_region_init_ram(&s->hv_ram, NULL, "sun4v-hv.ram",
NIAGARA_HV_RAM_SIZE, &error_fatal);
memory_region_add_subregion(sysmem, NIAGARA_HV_RAM_BASE, &s->hv_ram);
memory_region_add_subregion(sysmem, NIAGARA_PARTITION_RAM_BASE,
machine->ram);
memory_region_init_ram(&s->nvram, NULL, "sun4v.nvram", NIAGARA_NVRAM_SIZE,
&error_fatal);
memory_region_add_subregion(sysmem, NIAGARA_NVRAM_BASE, &s->nvram);
memory_region_init_ram(&s->md_rom, NULL, "sun4v-md.rom",
NIAGARA_MD_ROM_SIZE, &error_fatal);
memory_region_add_subregion(sysmem, NIAGARA_MD_ROM_BASE, &s->md_rom);
memory_region_init_ram(&s->hv_rom, NULL, "sun4v-hv.rom",
NIAGARA_HV_ROM_SIZE, &error_fatal);
memory_region_add_subregion(sysmem, NIAGARA_HV_ROM_BASE, &s->hv_rom);
memory_region_init_ram(&s->prom, NULL, "sun4v.prom", PROM_SIZE_MAX,
&error_fatal);
memory_region_add_subregion(sysmem, NIAGARA_PROM_BASE, &s->prom);
add_rom_or_fail("nvram1", NIAGARA_NVRAM_BASE);
add_rom_or_fail("1up-md.bin", NIAGARA_MD_ROM_BASE);
add_rom_or_fail("1up-hv.bin", NIAGARA_HV_ROM_BASE);
add_rom_or_fail("reset.bin", NIAGARA_PROM_BASE);
add_rom_or_fail("q.bin", NIAGARA_PROM_BASE + NIAGARA_Q_OFFSET);
add_rom_or_fail("openboot.bin", NIAGARA_PROM_BASE + NIAGARA_OBP_OFFSET);
/* the virtual ramdisk is kind of initrd, but it resides
outside of the partition RAM */
if (dinfo) {
BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
int size = blk_getlength(blk);
if (size > 0) {
memory_region_init_ram(&s->vdisk_ram, NULL, "sun4v_vdisk.ram", size,
&error_fatal);
memory_region_add_subregion(get_system_memory(),
NIAGARA_VDISK_BASE, &s->vdisk_ram);
dinfo->is_default = 1;
rom_add_file_fixed(blk_bs(blk)->filename, NIAGARA_VDISK_BASE, -1);
} else {
error_report("could not load ram disk '%s'",
blk_bs(blk)->filename);
exit(1);
}
}
serial_mm_init(sysmem, NIAGARA_UART_BASE, 0, NULL,
115200, serial_hd(0), DEVICE_BIG_ENDIAN);
create_unimplemented_device("sun4v-iob", NIAGARA_IOBBASE, NIAGARA_IOBSIZE);
sun4v_rtc_init(NIAGARA_RTC_BASE);
}
static void niagara_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Sun4v platform, Niagara";
mc->init = niagara_init;
mc->max_cpus = 1; /* XXX for now */
mc->default_boot_order = "c";
mc->default_cpu_type = SPARC_CPU_TYPE_NAME("Sun-UltraSparc-T1");
mc->default_ram_id = "sun4v-partition.ram";
}
static const TypeInfo niagara_type = {
.name = MACHINE_TYPE_NAME("niagara"),
.parent = TYPE_MACHINE,
.class_init = niagara_class_init,
};
static void niagara_register_types(void)
{
type_register_static(&niagara_type);
}
type_init(niagara_register_types)
