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