1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * QEMU loongson 3a5000 develop board emulation 4 * 5 * Copyright (c) 2021 Loongson Technology Corporation Limited 6 */ 7 #include "qemu/osdep.h" 8 #include "qemu/units.h" 9 #include "qemu/datadir.h" 10 #include "qapi/error.h" 11 #include "hw/boards.h" 12 #include "hw/char/serial.h" 13 #include "sysemu/sysemu.h" 14 #include "sysemu/qtest.h" 15 #include "sysemu/runstate.h" 16 #include "sysemu/reset.h" 17 #include "sysemu/rtc.h" 18 #include "hw/loongarch/virt.h" 19 #include "exec/address-spaces.h" 20 #include "hw/irq.h" 21 #include "net/net.h" 22 #include "hw/loader.h" 23 #include "elf.h" 24 #include "hw/intc/loongarch_ipi.h" 25 #include "hw/intc/loongarch_extioi.h" 26 #include "hw/intc/loongarch_pch_pic.h" 27 #include "hw/intc/loongarch_pch_msi.h" 28 #include "hw/pci-host/ls7a.h" 29 #include "hw/pci-host/gpex.h" 30 #include "hw/misc/unimp.h" 31 #include "hw/loongarch/fw_cfg.h" 32 #include "target/loongarch/cpu.h" 33 #include "hw/firmware/smbios.h" 34 #include "hw/acpi/aml-build.h" 35 #include "qapi/qapi-visit-common.h" 36 #include "hw/acpi/generic_event_device.h" 37 #include "hw/mem/nvdimm.h" 38 #include "sysemu/device_tree.h" 39 #include <libfdt.h> 40 #include "hw/core/sysbus-fdt.h" 41 #include "hw/platform-bus.h" 42 #include "hw/display/ramfb.h" 43 #include "hw/mem/pc-dimm.h" 44 #include "sysemu/tpm.h" 45 #include "sysemu/block-backend.h" 46 #include "hw/block/flash.h" 47 #include "qemu/error-report.h" 48 49 50 struct loaderparams { 51 uint64_t ram_size; 52 const char *kernel_filename; 53 const char *kernel_cmdline; 54 const char *initrd_filename; 55 }; 56 57 static PFlashCFI01 *virt_flash_create1(LoongArchMachineState *lams, 58 const char *name, 59 const char *alias_prop_name) 60 { 61 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); 62 63 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); 64 qdev_prop_set_uint8(dev, "width", 4); 65 qdev_prop_set_uint8(dev, "device-width", 2); 66 qdev_prop_set_bit(dev, "big-endian", false); 67 qdev_prop_set_uint16(dev, "id0", 0x89); 68 qdev_prop_set_uint16(dev, "id1", 0x18); 69 qdev_prop_set_uint16(dev, "id2", 0x00); 70 qdev_prop_set_uint16(dev, "id3", 0x00); 71 qdev_prop_set_string(dev, "name", name); 72 object_property_add_child(OBJECT(lams), name, OBJECT(dev)); 73 object_property_add_alias(OBJECT(lams), alias_prop_name, 74 OBJECT(dev), "drive"); 75 return PFLASH_CFI01(dev); 76 } 77 78 static void virt_flash_create(LoongArchMachineState *lams) 79 { 80 lams->flash[0] = virt_flash_create1(lams, "virt.flash0", "pflash0"); 81 lams->flash[1] = virt_flash_create1(lams, "virt.flash1", "pflash1"); 82 } 83 84 static void virt_flash_map1(PFlashCFI01 *flash, 85 hwaddr base, hwaddr size, 86 MemoryRegion *sysmem) 87 { 88 DeviceState *dev = DEVICE(flash); 89 BlockBackend *blk; 90 hwaddr real_size = size; 91 92 blk = pflash_cfi01_get_blk(flash); 93 if (blk) { 94 real_size = blk_getlength(blk); 95 assert(real_size && real_size <= size); 96 } 97 98 assert(QEMU_IS_ALIGNED(real_size, VIRT_FLASH_SECTOR_SIZE)); 99 assert(real_size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); 100 101 qdev_prop_set_uint32(dev, "num-blocks", real_size / VIRT_FLASH_SECTOR_SIZE); 102 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 103 memory_region_add_subregion(sysmem, base, 104 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0)); 105 } 106 107 static void virt_flash_map(LoongArchMachineState *lams, 108 MemoryRegion *sysmem) 109 { 110 PFlashCFI01 *flash0 = lams->flash[0]; 111 PFlashCFI01 *flash1 = lams->flash[1]; 112 113 virt_flash_map1(flash0, VIRT_FLASH0_BASE, VIRT_FLASH0_SIZE, sysmem); 114 virt_flash_map1(flash1, VIRT_FLASH1_BASE, VIRT_FLASH1_SIZE, sysmem); 115 } 116 117 static void fdt_add_flash_node(LoongArchMachineState *lams) 118 { 119 MachineState *ms = MACHINE(lams); 120 char *nodename; 121 MemoryRegion *flash_mem; 122 123 hwaddr flash0_base; 124 hwaddr flash0_size; 125 126 hwaddr flash1_base; 127 hwaddr flash1_size; 128 129 flash_mem = pflash_cfi01_get_memory(lams->flash[0]); 130 flash0_base = flash_mem->addr; 131 flash0_size = memory_region_size(flash_mem); 132 133 flash_mem = pflash_cfi01_get_memory(lams->flash[1]); 134 flash1_base = flash_mem->addr; 135 flash1_size = memory_region_size(flash_mem); 136 137 nodename = g_strdup_printf("/flash@%" PRIx64, flash0_base); 138 qemu_fdt_add_subnode(ms->fdt, nodename); 139 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 140 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 141 2, flash0_base, 2, flash0_size, 142 2, flash1_base, 2, flash1_size); 143 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 144 g_free(nodename); 145 } 146 147 static void fdt_add_rtc_node(LoongArchMachineState *lams) 148 { 149 char *nodename; 150 hwaddr base = VIRT_RTC_REG_BASE; 151 hwaddr size = VIRT_RTC_LEN; 152 MachineState *ms = MACHINE(lams); 153 154 nodename = g_strdup_printf("/rtc@%" PRIx64, base); 155 qemu_fdt_add_subnode(ms->fdt, nodename); 156 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,ls7a-rtc"); 157 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); 158 g_free(nodename); 159 } 160 161 static void fdt_add_uart_node(LoongArchMachineState *lams) 162 { 163 char *nodename; 164 hwaddr base = VIRT_UART_BASE; 165 hwaddr size = VIRT_UART_SIZE; 166 MachineState *ms = MACHINE(lams); 167 168 nodename = g_strdup_printf("/serial@%" PRIx64, base); 169 qemu_fdt_add_subnode(ms->fdt, nodename); 170 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a"); 171 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size); 172 qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000); 173 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); 174 g_free(nodename); 175 } 176 177 static void create_fdt(LoongArchMachineState *lams) 178 { 179 MachineState *ms = MACHINE(lams); 180 181 ms->fdt = create_device_tree(&lams->fdt_size); 182 if (!ms->fdt) { 183 error_report("create_device_tree() failed"); 184 exit(1); 185 } 186 187 /* Header */ 188 qemu_fdt_setprop_string(ms->fdt, "/", "compatible", 189 "linux,dummy-loongson3"); 190 qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); 191 qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); 192 qemu_fdt_add_subnode(ms->fdt, "/chosen"); 193 } 194 195 static void fdt_add_cpu_nodes(const LoongArchMachineState *lams) 196 { 197 int num; 198 const MachineState *ms = MACHINE(lams); 199 int smp_cpus = ms->smp.cpus; 200 201 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 202 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); 203 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 204 205 /* cpu nodes */ 206 for (num = smp_cpus - 1; num >= 0; num--) { 207 char *nodename = g_strdup_printf("/cpus/cpu@%d", num); 208 LoongArchCPU *cpu = LOONGARCH_CPU(qemu_get_cpu(num)); 209 CPUState *cs = CPU(cpu); 210 211 qemu_fdt_add_subnode(ms->fdt, nodename); 212 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); 213 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 214 cpu->dtb_compatible); 215 if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { 216 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", 217 ms->possible_cpus->cpus[cs->cpu_index].props.node_id); 218 } 219 qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", num); 220 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", 221 qemu_fdt_alloc_phandle(ms->fdt)); 222 g_free(nodename); 223 } 224 225 /*cpu map */ 226 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 227 228 for (num = smp_cpus - 1; num >= 0; num--) { 229 char *cpu_path = g_strdup_printf("/cpus/cpu@%d", num); 230 char *map_path; 231 232 if (ms->smp.threads > 1) { 233 map_path = g_strdup_printf( 234 "/cpus/cpu-map/socket%d/core%d/thread%d", 235 num / (ms->smp.cores * ms->smp.threads), 236 (num / ms->smp.threads) % ms->smp.cores, 237 num % ms->smp.threads); 238 } else { 239 map_path = g_strdup_printf( 240 "/cpus/cpu-map/socket%d/core%d", 241 num / ms->smp.cores, 242 num % ms->smp.cores); 243 } 244 qemu_fdt_add_path(ms->fdt, map_path); 245 qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path); 246 247 g_free(map_path); 248 g_free(cpu_path); 249 } 250 } 251 252 static void fdt_add_fw_cfg_node(const LoongArchMachineState *lams) 253 { 254 char *nodename; 255 hwaddr base = VIRT_FWCFG_BASE; 256 const MachineState *ms = MACHINE(lams); 257 258 nodename = g_strdup_printf("/fw_cfg@%" PRIx64, base); 259 qemu_fdt_add_subnode(ms->fdt, nodename); 260 qemu_fdt_setprop_string(ms->fdt, nodename, 261 "compatible", "qemu,fw-cfg-mmio"); 262 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 263 2, base, 2, 0x18); 264 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 265 g_free(nodename); 266 } 267 268 static void fdt_add_pcie_node(const LoongArchMachineState *lams) 269 { 270 char *nodename; 271 hwaddr base_mmio = VIRT_PCI_MEM_BASE; 272 hwaddr size_mmio = VIRT_PCI_MEM_SIZE; 273 hwaddr base_pio = VIRT_PCI_IO_BASE; 274 hwaddr size_pio = VIRT_PCI_IO_SIZE; 275 hwaddr base_pcie = VIRT_PCI_CFG_BASE; 276 hwaddr size_pcie = VIRT_PCI_CFG_SIZE; 277 hwaddr base = base_pcie; 278 279 const MachineState *ms = MACHINE(lams); 280 281 nodename = g_strdup_printf("/pcie@%" PRIx64, base); 282 qemu_fdt_add_subnode(ms->fdt, nodename); 283 qemu_fdt_setprop_string(ms->fdt, nodename, 284 "compatible", "pci-host-ecam-generic"); 285 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); 286 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); 287 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); 288 qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); 289 qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, 290 PCIE_MMCFG_BUS(VIRT_PCI_CFG_SIZE - 1)); 291 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 292 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 293 2, base_pcie, 2, size_pcie); 294 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 295 1, FDT_PCI_RANGE_IOPORT, 2, VIRT_PCI_IO_OFFSET, 296 2, base_pio, 2, size_pio, 297 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 298 2, base_mmio, 2, size_mmio); 299 g_free(nodename); 300 } 301 302 static void fdt_add_irqchip_node(LoongArchMachineState *lams) 303 { 304 MachineState *ms = MACHINE(lams); 305 char *nodename; 306 uint32_t irqchip_phandle; 307 308 irqchip_phandle = qemu_fdt_alloc_phandle(ms->fdt); 309 qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", irqchip_phandle); 310 311 nodename = g_strdup_printf("/intc@%lx", VIRT_IOAPIC_REG_BASE); 312 qemu_fdt_add_subnode(ms->fdt, nodename); 313 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3); 314 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 315 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2); 316 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2); 317 qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0); 318 319 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 320 "loongarch,ls7a"); 321 322 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 323 2, VIRT_IOAPIC_REG_BASE, 324 2, PCH_PIC_ROUTE_ENTRY_OFFSET); 325 326 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", irqchip_phandle); 327 g_free(nodename); 328 } 329 330 static void fdt_add_memory_node(MachineState *ms, 331 uint64_t base, uint64_t size, int node_id) 332 { 333 char *nodename = g_strdup_printf("/memory@%" PRIx64, base); 334 335 qemu_fdt_add_subnode(ms->fdt, nodename); 336 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 2, base, 2, size); 337 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); 338 339 if (ms->numa_state && ms->numa_state->num_nodes) { 340 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", node_id); 341 } 342 343 g_free(nodename); 344 } 345 346 static void virt_build_smbios(LoongArchMachineState *lams) 347 { 348 MachineState *ms = MACHINE(lams); 349 MachineClass *mc = MACHINE_GET_CLASS(lams); 350 uint8_t *smbios_tables, *smbios_anchor; 351 size_t smbios_tables_len, smbios_anchor_len; 352 const char *product = "QEMU Virtual Machine"; 353 354 if (!lams->fw_cfg) { 355 return; 356 } 357 358 smbios_set_defaults("QEMU", product, mc->name, false, 359 true, SMBIOS_ENTRY_POINT_TYPE_64); 360 361 smbios_get_tables(ms, NULL, 0, &smbios_tables, &smbios_tables_len, 362 &smbios_anchor, &smbios_anchor_len, &error_fatal); 363 364 if (smbios_anchor) { 365 fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-tables", 366 smbios_tables, smbios_tables_len); 367 fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-anchor", 368 smbios_anchor, smbios_anchor_len); 369 } 370 } 371 372 static void virt_machine_done(Notifier *notifier, void *data) 373 { 374 LoongArchMachineState *lams = container_of(notifier, 375 LoongArchMachineState, machine_done); 376 virt_build_smbios(lams); 377 loongarch_acpi_setup(lams); 378 } 379 380 static void virt_powerdown_req(Notifier *notifier, void *opaque) 381 { 382 LoongArchMachineState *s = container_of(notifier, 383 LoongArchMachineState, powerdown_notifier); 384 385 acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS); 386 } 387 388 struct memmap_entry { 389 uint64_t address; 390 uint64_t length; 391 uint32_t type; 392 uint32_t reserved; 393 }; 394 395 static struct memmap_entry *memmap_table; 396 static unsigned memmap_entries; 397 398 static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type) 399 { 400 /* Ensure there are no duplicate entries. */ 401 for (unsigned i = 0; i < memmap_entries; i++) { 402 assert(memmap_table[i].address != address); 403 } 404 405 memmap_table = g_renew(struct memmap_entry, memmap_table, 406 memmap_entries + 1); 407 memmap_table[memmap_entries].address = cpu_to_le64(address); 408 memmap_table[memmap_entries].length = cpu_to_le64(length); 409 memmap_table[memmap_entries].type = cpu_to_le32(type); 410 memmap_table[memmap_entries].reserved = 0; 411 memmap_entries++; 412 } 413 414 static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) 415 { 416 return addr & MAKE_64BIT_MASK(0, TARGET_PHYS_ADDR_SPACE_BITS); 417 } 418 419 static int64_t load_kernel_info(const struct loaderparams *loaderparams) 420 { 421 uint64_t kernel_entry, kernel_low, kernel_high; 422 ssize_t kernel_size; 423 424 kernel_size = load_elf(loaderparams->kernel_filename, NULL, 425 cpu_loongarch_virt_to_phys, NULL, 426 &kernel_entry, &kernel_low, 427 &kernel_high, NULL, 0, 428 EM_LOONGARCH, 1, 0); 429 430 if (kernel_size < 0) { 431 error_report("could not load kernel '%s': %s", 432 loaderparams->kernel_filename, 433 load_elf_strerror(kernel_size)); 434 exit(1); 435 } 436 return kernel_entry; 437 } 438 439 static DeviceState *create_acpi_ged(DeviceState *pch_pic, LoongArchMachineState *lams) 440 { 441 DeviceState *dev; 442 MachineState *ms = MACHINE(lams); 443 uint32_t event = ACPI_GED_PWR_DOWN_EVT; 444 445 if (ms->ram_slots) { 446 event |= ACPI_GED_MEM_HOTPLUG_EVT; 447 } 448 dev = qdev_new(TYPE_ACPI_GED); 449 qdev_prop_set_uint32(dev, "ged-event", event); 450 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 451 452 /* ged event */ 453 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, VIRT_GED_EVT_ADDR); 454 /* memory hotplug */ 455 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, VIRT_GED_MEM_ADDR); 456 /* ged regs used for reset and power down */ 457 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR); 458 459 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, 460 qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - VIRT_GSI_BASE)); 461 return dev; 462 } 463 464 static DeviceState *create_platform_bus(DeviceState *pch_pic) 465 { 466 DeviceState *dev; 467 SysBusDevice *sysbus; 468 int i, irq; 469 MemoryRegion *sysmem = get_system_memory(); 470 471 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 472 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 473 qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS); 474 qdev_prop_set_uint32(dev, "mmio_size", VIRT_PLATFORM_BUS_SIZE); 475 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 476 477 sysbus = SYS_BUS_DEVICE(dev); 478 for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { 479 irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i; 480 sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq)); 481 } 482 483 memory_region_add_subregion(sysmem, 484 VIRT_PLATFORM_BUS_BASEADDRESS, 485 sysbus_mmio_get_region(sysbus, 0)); 486 return dev; 487 } 488 489 static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState *lams) 490 { 491 MachineClass *mc = MACHINE_GET_CLASS(lams); 492 DeviceState *gpex_dev; 493 SysBusDevice *d; 494 PCIBus *pci_bus; 495 MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg; 496 MemoryRegion *mmio_alias, *mmio_reg; 497 int i; 498 499 gpex_dev = qdev_new(TYPE_GPEX_HOST); 500 d = SYS_BUS_DEVICE(gpex_dev); 501 sysbus_realize_and_unref(d, &error_fatal); 502 pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus; 503 lams->pci_bus = pci_bus; 504 505 /* Map only part size_ecam bytes of ECAM space */ 506 ecam_alias = g_new0(MemoryRegion, 1); 507 ecam_reg = sysbus_mmio_get_region(d, 0); 508 memory_region_init_alias(ecam_alias, OBJECT(gpex_dev), "pcie-ecam", 509 ecam_reg, 0, VIRT_PCI_CFG_SIZE); 510 memory_region_add_subregion(get_system_memory(), VIRT_PCI_CFG_BASE, 511 ecam_alias); 512 513 /* Map PCI mem space */ 514 mmio_alias = g_new0(MemoryRegion, 1); 515 mmio_reg = sysbus_mmio_get_region(d, 1); 516 memory_region_init_alias(mmio_alias, OBJECT(gpex_dev), "pcie-mmio", 517 mmio_reg, VIRT_PCI_MEM_BASE, VIRT_PCI_MEM_SIZE); 518 memory_region_add_subregion(get_system_memory(), VIRT_PCI_MEM_BASE, 519 mmio_alias); 520 521 /* Map PCI IO port space. */ 522 pio_alias = g_new0(MemoryRegion, 1); 523 pio_reg = sysbus_mmio_get_region(d, 2); 524 memory_region_init_alias(pio_alias, OBJECT(gpex_dev), "pcie-io", pio_reg, 525 VIRT_PCI_IO_OFFSET, VIRT_PCI_IO_SIZE); 526 memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE, 527 pio_alias); 528 529 for (i = 0; i < GPEX_NUM_IRQS; i++) { 530 sysbus_connect_irq(d, i, 531 qdev_get_gpio_in(pch_pic, 16 + i)); 532 gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i); 533 } 534 535 serial_mm_init(get_system_memory(), VIRT_UART_BASE, 0, 536 qdev_get_gpio_in(pch_pic, 537 VIRT_UART_IRQ - VIRT_GSI_BASE), 538 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN); 539 fdt_add_uart_node(lams); 540 541 /* Network init */ 542 pci_init_nic_devices(pci_bus, mc->default_nic); 543 544 /* 545 * There are some invalid guest memory access. 546 * Create some unimplemented devices to emulate this. 547 */ 548 create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4); 549 sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE, 550 qdev_get_gpio_in(pch_pic, 551 VIRT_RTC_IRQ - VIRT_GSI_BASE)); 552 fdt_add_rtc_node(lams); 553 554 /* acpi ged */ 555 lams->acpi_ged = create_acpi_ged(pch_pic, lams); 556 /* platform bus */ 557 lams->platform_bus_dev = create_platform_bus(pch_pic); 558 } 559 560 static void loongarch_irq_init(LoongArchMachineState *lams) 561 { 562 MachineState *ms = MACHINE(lams); 563 DeviceState *pch_pic, *pch_msi, *cpudev; 564 DeviceState *ipi, *extioi; 565 SysBusDevice *d; 566 LoongArchCPU *lacpu; 567 CPULoongArchState *env; 568 CPUState *cpu_state; 569 int cpu, pin, i, start, num; 570 571 /* 572 * The connection of interrupts: 573 * +-----+ +---------+ +-------+ 574 * | IPI |--> | CPUINTC | <-- | Timer | 575 * +-----+ +---------+ +-------+ 576 * ^ 577 * | 578 * +---------+ 579 * | EIOINTC | 580 * +---------+ 581 * ^ ^ 582 * | | 583 * +---------+ +---------+ 584 * | PCH-PIC | | PCH-MSI | 585 * +---------+ +---------+ 586 * ^ ^ ^ 587 * | | | 588 * +--------+ +---------+ +---------+ 589 * | UARTs | | Devices | | Devices | 590 * +--------+ +---------+ +---------+ 591 */ 592 593 /* Create IPI device */ 594 ipi = qdev_new(TYPE_LOONGARCH_IPI); 595 qdev_prop_set_uint32(ipi, "num-cpu", ms->smp.cpus); 596 sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); 597 598 /* IPI iocsr memory region */ 599 memory_region_add_subregion(&lams->system_iocsr, SMP_IPI_MAILBOX, 600 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 0)); 601 memory_region_add_subregion(&lams->system_iocsr, MAIL_SEND_ADDR, 602 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 1)); 603 604 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 605 cpu_state = qemu_get_cpu(cpu); 606 cpudev = DEVICE(cpu_state); 607 lacpu = LOONGARCH_CPU(cpu_state); 608 env = &(lacpu->env); 609 env->address_space_iocsr = &lams->as_iocsr; 610 611 /* connect ipi irq to cpu irq */ 612 qdev_connect_gpio_out(ipi, cpu, qdev_get_gpio_in(cpudev, IRQ_IPI)); 613 env->ipistate = ipi; 614 } 615 616 /* Create EXTIOI device */ 617 extioi = qdev_new(TYPE_LOONGARCH_EXTIOI); 618 qdev_prop_set_uint32(extioi, "num-cpu", ms->smp.cpus); 619 sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal); 620 memory_region_add_subregion(&lams->system_iocsr, APIC_BASE, 621 sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0)); 622 623 /* 624 * connect ext irq to the cpu irq 625 * cpu_pin[9:2] <= intc_pin[7:0] 626 */ 627 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 628 cpudev = DEVICE(qemu_get_cpu(cpu)); 629 for (pin = 0; pin < LS3A_INTC_IP; pin++) { 630 qdev_connect_gpio_out(extioi, (cpu * 8 + pin), 631 qdev_get_gpio_in(cpudev, pin + 2)); 632 } 633 } 634 635 pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); 636 num = VIRT_PCH_PIC_IRQ_NUM; 637 qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num); 638 d = SYS_BUS_DEVICE(pch_pic); 639 sysbus_realize_and_unref(d, &error_fatal); 640 memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE, 641 sysbus_mmio_get_region(d, 0)); 642 memory_region_add_subregion(get_system_memory(), 643 VIRT_IOAPIC_REG_BASE + PCH_PIC_ROUTE_ENTRY_OFFSET, 644 sysbus_mmio_get_region(d, 1)); 645 memory_region_add_subregion(get_system_memory(), 646 VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO, 647 sysbus_mmio_get_region(d, 2)); 648 649 /* Connect pch_pic irqs to extioi */ 650 for (i = 0; i < num; i++) { 651 qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); 652 } 653 654 pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); 655 start = num; 656 num = EXTIOI_IRQS - start; 657 qdev_prop_set_uint32(pch_msi, "msi_irq_base", start); 658 qdev_prop_set_uint32(pch_msi, "msi_irq_num", num); 659 d = SYS_BUS_DEVICE(pch_msi); 660 sysbus_realize_and_unref(d, &error_fatal); 661 sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW); 662 for (i = 0; i < num; i++) { 663 /* Connect pch_msi irqs to extioi */ 664 qdev_connect_gpio_out(DEVICE(d), i, 665 qdev_get_gpio_in(extioi, i + start)); 666 } 667 668 loongarch_devices_init(pch_pic, lams); 669 } 670 671 static void loongarch_firmware_init(LoongArchMachineState *lams) 672 { 673 char *filename = MACHINE(lams)->firmware; 674 char *bios_name = NULL; 675 int bios_size, i; 676 BlockBackend *pflash_blk0; 677 MemoryRegion *mr; 678 679 lams->bios_loaded = false; 680 681 /* Map legacy -drive if=pflash to machine properties */ 682 for (i = 0; i < ARRAY_SIZE(lams->flash); i++) { 683 pflash_cfi01_legacy_drive(lams->flash[i], 684 drive_get(IF_PFLASH, 0, i)); 685 } 686 687 virt_flash_map(lams, get_system_memory()); 688 689 pflash_blk0 = pflash_cfi01_get_blk(lams->flash[0]); 690 691 if (pflash_blk0) { 692 if (filename) { 693 error_report("cannot use both '-bios' and '-drive if=pflash'" 694 "options at once"); 695 exit(1); 696 } 697 lams->bios_loaded = true; 698 return; 699 } 700 701 if (filename) { 702 bios_name = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename); 703 if (!bios_name) { 704 error_report("Could not find ROM image '%s'", filename); 705 exit(1); 706 } 707 708 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(lams->flash[0]), 0); 709 bios_size = load_image_mr(bios_name, mr); 710 if (bios_size < 0) { 711 error_report("Could not load ROM image '%s'", bios_name); 712 exit(1); 713 } 714 g_free(bios_name); 715 lams->bios_loaded = true; 716 } 717 } 718 719 static void reset_load_elf(void *opaque) 720 { 721 LoongArchCPU *cpu = opaque; 722 CPULoongArchState *env = &cpu->env; 723 724 cpu_reset(CPU(cpu)); 725 if (env->load_elf) { 726 cpu_set_pc(CPU(cpu), env->elf_address); 727 } 728 } 729 730 static void fw_cfg_add_kernel_info(const struct loaderparams *loaderparams, 731 FWCfgState *fw_cfg) 732 { 733 /* 734 * Expose the kernel, the command line, and the initrd in fw_cfg. 735 * We don't process them here at all, it's all left to the 736 * firmware. 737 */ 738 load_image_to_fw_cfg(fw_cfg, 739 FW_CFG_KERNEL_SIZE, FW_CFG_KERNEL_DATA, 740 loaderparams->kernel_filename, 741 false); 742 743 if (loaderparams->initrd_filename) { 744 load_image_to_fw_cfg(fw_cfg, 745 FW_CFG_INITRD_SIZE, FW_CFG_INITRD_DATA, 746 loaderparams->initrd_filename, false); 747 } 748 749 if (loaderparams->kernel_cmdline) { 750 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 751 strlen(loaderparams->kernel_cmdline) + 1); 752 fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, 753 loaderparams->kernel_cmdline); 754 } 755 } 756 757 static void loongarch_firmware_boot(LoongArchMachineState *lams, 758 const struct loaderparams *loaderparams) 759 { 760 fw_cfg_add_kernel_info(loaderparams, lams->fw_cfg); 761 } 762 763 static void loongarch_direct_kernel_boot(LoongArchMachineState *lams, 764 const struct loaderparams *loaderparams) 765 { 766 MachineState *machine = MACHINE(lams); 767 int64_t kernel_addr = 0; 768 LoongArchCPU *lacpu; 769 int i; 770 771 kernel_addr = load_kernel_info(loaderparams); 772 if (!machine->firmware) { 773 for (i = 0; i < machine->smp.cpus; i++) { 774 lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); 775 lacpu->env.load_elf = true; 776 lacpu->env.elf_address = kernel_addr; 777 } 778 } 779 } 780 781 static void loongarch_qemu_write(void *opaque, hwaddr addr, 782 uint64_t val, unsigned size) 783 { 784 } 785 786 static uint64_t loongarch_qemu_read(void *opaque, hwaddr addr, unsigned size) 787 { 788 switch (addr) { 789 case VERSION_REG: 790 return 0x11ULL; 791 case FEATURE_REG: 792 return 1ULL << IOCSRF_MSI | 1ULL << IOCSRF_EXTIOI | 793 1ULL << IOCSRF_CSRIPI; 794 case VENDOR_REG: 795 return 0x6e6f73676e6f6f4cULL; /* "Loongson" */ 796 case CPUNAME_REG: 797 return 0x303030354133ULL; /* "3A5000" */ 798 case MISC_FUNC_REG: 799 return 1ULL << IOCSRM_EXTIOI_EN; 800 } 801 return 0ULL; 802 } 803 804 static const MemoryRegionOps loongarch_qemu_ops = { 805 .read = loongarch_qemu_read, 806 .write = loongarch_qemu_write, 807 .endianness = DEVICE_LITTLE_ENDIAN, 808 .valid = { 809 .min_access_size = 4, 810 .max_access_size = 8, 811 }, 812 .impl = { 813 .min_access_size = 8, 814 .max_access_size = 8, 815 }, 816 }; 817 818 static void loongarch_init(MachineState *machine) 819 { 820 LoongArchCPU *lacpu; 821 const char *cpu_model = machine->cpu_type; 822 ram_addr_t offset = 0; 823 ram_addr_t ram_size = machine->ram_size; 824 uint64_t highram_size = 0, phyAddr = 0; 825 MemoryRegion *address_space_mem = get_system_memory(); 826 LoongArchMachineState *lams = LOONGARCH_MACHINE(machine); 827 int nb_numa_nodes = machine->numa_state->num_nodes; 828 NodeInfo *numa_info = machine->numa_state->nodes; 829 int i; 830 hwaddr fdt_base; 831 const CPUArchIdList *possible_cpus; 832 MachineClass *mc = MACHINE_GET_CLASS(machine); 833 CPUState *cpu; 834 char *ramName = NULL; 835 struct loaderparams loaderparams = { }; 836 837 if (!cpu_model) { 838 cpu_model = LOONGARCH_CPU_TYPE_NAME("la464"); 839 } 840 841 if (ram_size < 1 * GiB) { 842 error_report("ram_size must be greater than 1G."); 843 exit(1); 844 } 845 create_fdt(lams); 846 847 /* Create IOCSR space */ 848 memory_region_init_io(&lams->system_iocsr, OBJECT(machine), NULL, 849 machine, "iocsr", UINT64_MAX); 850 address_space_init(&lams->as_iocsr, &lams->system_iocsr, "IOCSR"); 851 memory_region_init_io(&lams->iocsr_mem, OBJECT(machine), 852 &loongarch_qemu_ops, 853 machine, "iocsr_misc", 0x428); 854 memory_region_add_subregion(&lams->system_iocsr, 0, &lams->iocsr_mem); 855 856 /* Init CPUs */ 857 possible_cpus = mc->possible_cpu_arch_ids(machine); 858 for (i = 0; i < possible_cpus->len; i++) { 859 cpu = cpu_create(machine->cpu_type); 860 cpu->cpu_index = i; 861 machine->possible_cpus->cpus[i].cpu = OBJECT(cpu); 862 lacpu = LOONGARCH_CPU(cpu); 863 lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id; 864 } 865 fdt_add_cpu_nodes(lams); 866 867 /* Node0 memory */ 868 memmap_add_entry(VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 1); 869 fdt_add_memory_node(machine, VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 0); 870 memory_region_init_alias(&lams->lowmem, NULL, "loongarch.node0.lowram", 871 machine->ram, offset, VIRT_LOWMEM_SIZE); 872 memory_region_add_subregion(address_space_mem, phyAddr, &lams->lowmem); 873 874 offset += VIRT_LOWMEM_SIZE; 875 if (nb_numa_nodes > 0) { 876 assert(numa_info[0].node_mem > VIRT_LOWMEM_SIZE); 877 highram_size = numa_info[0].node_mem - VIRT_LOWMEM_SIZE; 878 } else { 879 highram_size = ram_size - VIRT_LOWMEM_SIZE; 880 } 881 phyAddr = VIRT_HIGHMEM_BASE; 882 memmap_add_entry(phyAddr, highram_size, 1); 883 fdt_add_memory_node(machine, phyAddr, highram_size, 0); 884 memory_region_init_alias(&lams->highmem, NULL, "loongarch.node0.highram", 885 machine->ram, offset, highram_size); 886 memory_region_add_subregion(address_space_mem, phyAddr, &lams->highmem); 887 888 /* Node1 - Nodemax memory */ 889 offset += highram_size; 890 phyAddr += highram_size; 891 892 for (i = 1; i < nb_numa_nodes; i++) { 893 MemoryRegion *nodemem = g_new(MemoryRegion, 1); 894 ramName = g_strdup_printf("loongarch.node%d.ram", i); 895 memory_region_init_alias(nodemem, NULL, ramName, machine->ram, 896 offset, numa_info[i].node_mem); 897 memory_region_add_subregion(address_space_mem, phyAddr, nodemem); 898 memmap_add_entry(phyAddr, numa_info[i].node_mem, 1); 899 fdt_add_memory_node(machine, phyAddr, numa_info[i].node_mem, i); 900 offset += numa_info[i].node_mem; 901 phyAddr += numa_info[i].node_mem; 902 } 903 904 /* initialize device memory address space */ 905 if (machine->ram_size < machine->maxram_size) { 906 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size; 907 hwaddr device_mem_base; 908 909 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) { 910 error_report("unsupported amount of memory slots: %"PRIu64, 911 machine->ram_slots); 912 exit(EXIT_FAILURE); 913 } 914 915 if (QEMU_ALIGN_UP(machine->maxram_size, 916 TARGET_PAGE_SIZE) != machine->maxram_size) { 917 error_report("maximum memory size must by aligned to multiple of " 918 "%d bytes", TARGET_PAGE_SIZE); 919 exit(EXIT_FAILURE); 920 } 921 /* device memory base is the top of high memory address. */ 922 device_mem_base = ROUND_UP(VIRT_HIGHMEM_BASE + highram_size, 1 * GiB); 923 machine_memory_devices_init(machine, device_mem_base, device_mem_size); 924 } 925 926 /* load the BIOS image. */ 927 loongarch_firmware_init(lams); 928 929 /* fw_cfg init */ 930 lams->fw_cfg = loongarch_fw_cfg_init(ram_size, machine); 931 rom_set_fw(lams->fw_cfg); 932 if (lams->fw_cfg != NULL) { 933 fw_cfg_add_file(lams->fw_cfg, "etc/memmap", 934 memmap_table, 935 sizeof(struct memmap_entry) * (memmap_entries)); 936 } 937 fdt_add_fw_cfg_node(lams); 938 loaderparams.ram_size = ram_size; 939 loaderparams.kernel_filename = machine->kernel_filename; 940 loaderparams.kernel_cmdline = machine->kernel_cmdline; 941 loaderparams.initrd_filename = machine->initrd_filename; 942 /* load the kernel. */ 943 if (loaderparams.kernel_filename) { 944 if (lams->bios_loaded) { 945 loongarch_firmware_boot(lams, &loaderparams); 946 } else { 947 loongarch_direct_kernel_boot(lams, &loaderparams); 948 } 949 } 950 fdt_add_flash_node(lams); 951 /* register reset function */ 952 for (i = 0; i < machine->smp.cpus; i++) { 953 lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); 954 qemu_register_reset(reset_load_elf, lacpu); 955 } 956 /* Initialize the IO interrupt subsystem */ 957 loongarch_irq_init(lams); 958 fdt_add_irqchip_node(lams); 959 platform_bus_add_all_fdt_nodes(machine->fdt, "/intc", 960 VIRT_PLATFORM_BUS_BASEADDRESS, 961 VIRT_PLATFORM_BUS_SIZE, 962 VIRT_PLATFORM_BUS_IRQ); 963 lams->machine_done.notify = virt_machine_done; 964 qemu_add_machine_init_done_notifier(&lams->machine_done); 965 /* connect powerdown request */ 966 lams->powerdown_notifier.notify = virt_powerdown_req; 967 qemu_register_powerdown_notifier(&lams->powerdown_notifier); 968 969 fdt_add_pcie_node(lams); 970 /* 971 * Since lowmem region starts from 0 and Linux kernel legacy start address 972 * at 2 MiB, FDT base address is located at 1 MiB to avoid NULL pointer 973 * access. FDT size limit with 1 MiB. 974 * Put the FDT into the memory map as a ROM image: this will ensure 975 * the FDT is copied again upon reset, even if addr points into RAM. 976 */ 977 fdt_base = 1 * MiB; 978 qemu_fdt_dumpdtb(machine->fdt, lams->fdt_size); 979 rom_add_blob_fixed("fdt", machine->fdt, lams->fdt_size, fdt_base); 980 } 981 982 bool loongarch_is_acpi_enabled(LoongArchMachineState *lams) 983 { 984 if (lams->acpi == ON_OFF_AUTO_OFF) { 985 return false; 986 } 987 return true; 988 } 989 990 static void loongarch_get_acpi(Object *obj, Visitor *v, const char *name, 991 void *opaque, Error **errp) 992 { 993 LoongArchMachineState *lams = LOONGARCH_MACHINE(obj); 994 OnOffAuto acpi = lams->acpi; 995 996 visit_type_OnOffAuto(v, name, &acpi, errp); 997 } 998 999 static void loongarch_set_acpi(Object *obj, Visitor *v, const char *name, 1000 void *opaque, Error **errp) 1001 { 1002 LoongArchMachineState *lams = LOONGARCH_MACHINE(obj); 1003 1004 visit_type_OnOffAuto(v, name, &lams->acpi, errp); 1005 } 1006 1007 static void loongarch_machine_initfn(Object *obj) 1008 { 1009 LoongArchMachineState *lams = LOONGARCH_MACHINE(obj); 1010 1011 lams->acpi = ON_OFF_AUTO_AUTO; 1012 lams->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 1013 lams->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 1014 virt_flash_create(lams); 1015 } 1016 1017 static bool memhp_type_supported(DeviceState *dev) 1018 { 1019 /* we only support pc dimm now */ 1020 return object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && 1021 !object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 1022 } 1023 1024 static void virt_mem_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 1025 Error **errp) 1026 { 1027 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp); 1028 } 1029 1030 static void virt_machine_device_pre_plug(HotplugHandler *hotplug_dev, 1031 DeviceState *dev, Error **errp) 1032 { 1033 if (memhp_type_supported(dev)) { 1034 virt_mem_pre_plug(hotplug_dev, dev, errp); 1035 } 1036 } 1037 1038 static void virt_mem_unplug_request(HotplugHandler *hotplug_dev, 1039 DeviceState *dev, Error **errp) 1040 { 1041 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev); 1042 1043 /* the acpi ged is always exist */ 1044 hotplug_handler_unplug_request(HOTPLUG_HANDLER(lams->acpi_ged), dev, 1045 errp); 1046 } 1047 1048 static void virt_machine_device_unplug_request(HotplugHandler *hotplug_dev, 1049 DeviceState *dev, Error **errp) 1050 { 1051 if (memhp_type_supported(dev)) { 1052 virt_mem_unplug_request(hotplug_dev, dev, errp); 1053 } 1054 } 1055 1056 static void virt_mem_unplug(HotplugHandler *hotplug_dev, 1057 DeviceState *dev, Error **errp) 1058 { 1059 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev); 1060 1061 hotplug_handler_unplug(HOTPLUG_HANDLER(lams->acpi_ged), dev, errp); 1062 pc_dimm_unplug(PC_DIMM(dev), MACHINE(lams)); 1063 qdev_unrealize(dev); 1064 } 1065 1066 static void virt_machine_device_unplug(HotplugHandler *hotplug_dev, 1067 DeviceState *dev, Error **errp) 1068 { 1069 if (memhp_type_supported(dev)) { 1070 virt_mem_unplug(hotplug_dev, dev, errp); 1071 } 1072 } 1073 1074 static void virt_mem_plug(HotplugHandler *hotplug_dev, 1075 DeviceState *dev, Error **errp) 1076 { 1077 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev); 1078 1079 pc_dimm_plug(PC_DIMM(dev), MACHINE(lams)); 1080 hotplug_handler_plug(HOTPLUG_HANDLER(lams->acpi_ged), 1081 dev, &error_abort); 1082 } 1083 1084 static void loongarch_machine_device_plug_cb(HotplugHandler *hotplug_dev, 1085 DeviceState *dev, Error **errp) 1086 { 1087 LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev); 1088 MachineClass *mc = MACHINE_GET_CLASS(lams); 1089 1090 if (device_is_dynamic_sysbus(mc, dev)) { 1091 if (lams->platform_bus_dev) { 1092 platform_bus_link_device(PLATFORM_BUS_DEVICE(lams->platform_bus_dev), 1093 SYS_BUS_DEVICE(dev)); 1094 } 1095 } else if (memhp_type_supported(dev)) { 1096 virt_mem_plug(hotplug_dev, dev, errp); 1097 } 1098 } 1099 1100 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, 1101 DeviceState *dev) 1102 { 1103 MachineClass *mc = MACHINE_GET_CLASS(machine); 1104 1105 if (device_is_dynamic_sysbus(mc, dev) || 1106 memhp_type_supported(dev)) { 1107 return HOTPLUG_HANDLER(machine); 1108 } 1109 return NULL; 1110 } 1111 1112 static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms) 1113 { 1114 int n; 1115 unsigned int max_cpus = ms->smp.max_cpus; 1116 1117 if (ms->possible_cpus) { 1118 assert(ms->possible_cpus->len == max_cpus); 1119 return ms->possible_cpus; 1120 } 1121 1122 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 1123 sizeof(CPUArchId) * max_cpus); 1124 ms->possible_cpus->len = max_cpus; 1125 for (n = 0; n < ms->possible_cpus->len; n++) { 1126 ms->possible_cpus->cpus[n].type = ms->cpu_type; 1127 ms->possible_cpus->cpus[n].arch_id = n; 1128 1129 ms->possible_cpus->cpus[n].props.has_socket_id = true; 1130 ms->possible_cpus->cpus[n].props.socket_id = 1131 n / (ms->smp.cores * ms->smp.threads); 1132 ms->possible_cpus->cpus[n].props.has_core_id = true; 1133 ms->possible_cpus->cpus[n].props.core_id = 1134 n / ms->smp.threads % ms->smp.cores; 1135 ms->possible_cpus->cpus[n].props.has_thread_id = true; 1136 ms->possible_cpus->cpus[n].props.thread_id = n % ms->smp.threads; 1137 } 1138 return ms->possible_cpus; 1139 } 1140 1141 static CpuInstanceProperties 1142 virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index) 1143 { 1144 MachineClass *mc = MACHINE_GET_CLASS(ms); 1145 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 1146 1147 assert(cpu_index < possible_cpus->len); 1148 return possible_cpus->cpus[cpu_index].props; 1149 } 1150 1151 static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx) 1152 { 1153 int64_t nidx = 0; 1154 1155 if (ms->numa_state->num_nodes) { 1156 nidx = idx / (ms->smp.cpus / ms->numa_state->num_nodes); 1157 if (ms->numa_state->num_nodes <= nidx) { 1158 nidx = ms->numa_state->num_nodes - 1; 1159 } 1160 } 1161 return nidx; 1162 } 1163 1164 static void loongarch_class_init(ObjectClass *oc, void *data) 1165 { 1166 MachineClass *mc = MACHINE_CLASS(oc); 1167 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 1168 1169 mc->desc = "Loongson-3A5000 LS7A1000 machine"; 1170 mc->init = loongarch_init; 1171 mc->default_ram_size = 1 * GiB; 1172 mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464"); 1173 mc->default_ram_id = "loongarch.ram"; 1174 mc->max_cpus = LOONGARCH_MAX_CPUS; 1175 mc->is_default = 1; 1176 mc->default_kernel_irqchip_split = false; 1177 mc->block_default_type = IF_VIRTIO; 1178 mc->default_boot_order = "c"; 1179 mc->no_cdrom = 1; 1180 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids; 1181 mc->cpu_index_to_instance_props = virt_cpu_index_to_props; 1182 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id; 1183 mc->numa_mem_supported = true; 1184 mc->auto_enable_numa_with_memhp = true; 1185 mc->auto_enable_numa_with_memdev = true; 1186 mc->get_hotplug_handler = virt_machine_get_hotplug_handler; 1187 mc->default_nic = "virtio-net-pci"; 1188 hc->plug = loongarch_machine_device_plug_cb; 1189 hc->pre_plug = virt_machine_device_pre_plug; 1190 hc->unplug_request = virt_machine_device_unplug_request; 1191 hc->unplug = virt_machine_device_unplug; 1192 1193 object_class_property_add(oc, "acpi", "OnOffAuto", 1194 loongarch_get_acpi, loongarch_set_acpi, 1195 NULL, NULL); 1196 object_class_property_set_description(oc, "acpi", 1197 "Enable ACPI"); 1198 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 1199 #ifdef CONFIG_TPM 1200 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 1201 #endif 1202 } 1203 1204 static const TypeInfo loongarch_machine_types[] = { 1205 { 1206 .name = TYPE_LOONGARCH_MACHINE, 1207 .parent = TYPE_MACHINE, 1208 .instance_size = sizeof(LoongArchMachineState), 1209 .class_init = loongarch_class_init, 1210 .instance_init = loongarch_machine_initfn, 1211 .interfaces = (InterfaceInfo[]) { 1212 { TYPE_HOTPLUG_HANDLER }, 1213 { } 1214 }, 1215 } 1216 }; 1217 1218 DEFINE_TYPES(loongarch_machine_types) 1219