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-mm.h" 13 #include "sysemu/kvm.h" 14 #include "sysemu/tcg.h" 15 #include "sysemu/sysemu.h" 16 #include "sysemu/qtest.h" 17 #include "sysemu/runstate.h" 18 #include "sysemu/reset.h" 19 #include "sysemu/rtc.h" 20 #include "hw/loongarch/virt.h" 21 #include "exec/address-spaces.h" 22 #include "hw/irq.h" 23 #include "net/net.h" 24 #include "hw/loader.h" 25 #include "elf.h" 26 #include "hw/intc/loongarch_ipi.h" 27 #include "hw/intc/loongarch_extioi.h" 28 #include "hw/intc/loongarch_pch_pic.h" 29 #include "hw/intc/loongarch_pch_msi.h" 30 #include "hw/pci-host/ls7a.h" 31 #include "hw/pci-host/gpex.h" 32 #include "hw/misc/unimp.h" 33 #include "hw/loongarch/fw_cfg.h" 34 #include "target/loongarch/cpu.h" 35 #include "hw/firmware/smbios.h" 36 #include "hw/acpi/aml-build.h" 37 #include "qapi/qapi-visit-common.h" 38 #include "hw/acpi/generic_event_device.h" 39 #include "hw/mem/nvdimm.h" 40 #include "sysemu/device_tree.h" 41 #include <libfdt.h> 42 #include "hw/core/sysbus-fdt.h" 43 #include "hw/platform-bus.h" 44 #include "hw/display/ramfb.h" 45 #include "hw/mem/pc-dimm.h" 46 #include "sysemu/tpm.h" 47 #include "sysemu/block-backend.h" 48 #include "hw/block/flash.h" 49 #include "hw/virtio/virtio-iommu.h" 50 #include "qemu/error-report.h" 51 #include "qemu/guest-random.h" 52 53 static bool virt_is_veiointc_enabled(LoongArchVirtMachineState *lvms) 54 { 55 if (lvms->veiointc == ON_OFF_AUTO_OFF) { 56 return false; 57 } 58 return true; 59 } 60 61 static void virt_get_veiointc(Object *obj, Visitor *v, const char *name, 62 void *opaque, Error **errp) 63 { 64 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); 65 OnOffAuto veiointc = lvms->veiointc; 66 67 visit_type_OnOffAuto(v, name, &veiointc, errp); 68 } 69 70 static void virt_set_veiointc(Object *obj, Visitor *v, const char *name, 71 void *opaque, Error **errp) 72 { 73 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); 74 75 visit_type_OnOffAuto(v, name, &lvms->veiointc, errp); 76 } 77 78 static PFlashCFI01 *virt_flash_create1(LoongArchVirtMachineState *lvms, 79 const char *name, 80 const char *alias_prop_name) 81 { 82 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); 83 84 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); 85 qdev_prop_set_uint8(dev, "width", 4); 86 qdev_prop_set_uint8(dev, "device-width", 2); 87 qdev_prop_set_bit(dev, "big-endian", false); 88 qdev_prop_set_uint16(dev, "id0", 0x89); 89 qdev_prop_set_uint16(dev, "id1", 0x18); 90 qdev_prop_set_uint16(dev, "id2", 0x00); 91 qdev_prop_set_uint16(dev, "id3", 0x00); 92 qdev_prop_set_string(dev, "name", name); 93 object_property_add_child(OBJECT(lvms), name, OBJECT(dev)); 94 object_property_add_alias(OBJECT(lvms), alias_prop_name, 95 OBJECT(dev), "drive"); 96 return PFLASH_CFI01(dev); 97 } 98 99 static void virt_flash_create(LoongArchVirtMachineState *lvms) 100 { 101 lvms->flash[0] = virt_flash_create1(lvms, "virt.flash0", "pflash0"); 102 lvms->flash[1] = virt_flash_create1(lvms, "virt.flash1", "pflash1"); 103 } 104 105 static void virt_flash_map1(PFlashCFI01 *flash, 106 hwaddr base, hwaddr size, 107 MemoryRegion *sysmem) 108 { 109 DeviceState *dev = DEVICE(flash); 110 BlockBackend *blk; 111 hwaddr real_size = size; 112 113 blk = pflash_cfi01_get_blk(flash); 114 if (blk) { 115 real_size = blk_getlength(blk); 116 assert(real_size && real_size <= size); 117 } 118 119 assert(QEMU_IS_ALIGNED(real_size, VIRT_FLASH_SECTOR_SIZE)); 120 assert(real_size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); 121 122 qdev_prop_set_uint32(dev, "num-blocks", real_size / VIRT_FLASH_SECTOR_SIZE); 123 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 124 memory_region_add_subregion(sysmem, base, 125 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0)); 126 } 127 128 static void virt_flash_map(LoongArchVirtMachineState *lvms, 129 MemoryRegion *sysmem) 130 { 131 PFlashCFI01 *flash0 = lvms->flash[0]; 132 PFlashCFI01 *flash1 = lvms->flash[1]; 133 134 virt_flash_map1(flash0, VIRT_FLASH0_BASE, VIRT_FLASH0_SIZE, sysmem); 135 virt_flash_map1(flash1, VIRT_FLASH1_BASE, VIRT_FLASH1_SIZE, sysmem); 136 } 137 138 static void fdt_add_cpuic_node(LoongArchVirtMachineState *lvms, 139 uint32_t *cpuintc_phandle) 140 { 141 MachineState *ms = MACHINE(lvms); 142 char *nodename; 143 144 *cpuintc_phandle = qemu_fdt_alloc_phandle(ms->fdt); 145 nodename = g_strdup_printf("/cpuic"); 146 qemu_fdt_add_subnode(ms->fdt, nodename); 147 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *cpuintc_phandle); 148 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 149 "loongson,cpu-interrupt-controller"); 150 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 151 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); 152 g_free(nodename); 153 } 154 155 static void fdt_add_eiointc_node(LoongArchVirtMachineState *lvms, 156 uint32_t *cpuintc_phandle, 157 uint32_t *eiointc_phandle) 158 { 159 MachineState *ms = MACHINE(lvms); 160 char *nodename; 161 hwaddr extioi_base = APIC_BASE; 162 hwaddr extioi_size = EXTIOI_SIZE; 163 164 *eiointc_phandle = qemu_fdt_alloc_phandle(ms->fdt); 165 nodename = g_strdup_printf("/eiointc@%" PRIx64, extioi_base); 166 qemu_fdt_add_subnode(ms->fdt, nodename); 167 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *eiointc_phandle); 168 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 169 "loongson,ls2k2000-eiointc"); 170 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 171 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); 172 qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", 173 *cpuintc_phandle); 174 qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupts", 3); 175 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, 176 extioi_base, 0x0, extioi_size); 177 g_free(nodename); 178 } 179 180 static void fdt_add_pch_pic_node(LoongArchVirtMachineState *lvms, 181 uint32_t *eiointc_phandle, 182 uint32_t *pch_pic_phandle) 183 { 184 MachineState *ms = MACHINE(lvms); 185 char *nodename; 186 hwaddr pch_pic_base = VIRT_PCH_REG_BASE; 187 hwaddr pch_pic_size = VIRT_PCH_REG_SIZE; 188 189 *pch_pic_phandle = qemu_fdt_alloc_phandle(ms->fdt); 190 nodename = g_strdup_printf("/platic@%" PRIx64, pch_pic_base); 191 qemu_fdt_add_subnode(ms->fdt, nodename); 192 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_pic_phandle); 193 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 194 "loongson,pch-pic-1.0"); 195 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0, 196 pch_pic_base, 0, pch_pic_size); 197 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 198 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 2); 199 qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", 200 *eiointc_phandle); 201 qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,pic-base-vec", 0); 202 g_free(nodename); 203 } 204 205 static void fdt_add_pch_msi_node(LoongArchVirtMachineState *lvms, 206 uint32_t *eiointc_phandle, 207 uint32_t *pch_msi_phandle) 208 { 209 MachineState *ms = MACHINE(lvms); 210 char *nodename; 211 hwaddr pch_msi_base = VIRT_PCH_MSI_ADDR_LOW; 212 hwaddr pch_msi_size = VIRT_PCH_MSI_SIZE; 213 214 *pch_msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 215 nodename = g_strdup_printf("/msi@%" PRIx64, pch_msi_base); 216 qemu_fdt_add_subnode(ms->fdt, nodename); 217 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_msi_phandle); 218 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 219 "loongson,pch-msi-1.0"); 220 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 221 0, pch_msi_base, 222 0, pch_msi_size); 223 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 224 qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", 225 *eiointc_phandle); 226 qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,msi-base-vec", 227 VIRT_PCH_PIC_IRQ_NUM); 228 qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,msi-num-vecs", 229 EXTIOI_IRQS - VIRT_PCH_PIC_IRQ_NUM); 230 g_free(nodename); 231 } 232 233 static void fdt_add_flash_node(LoongArchVirtMachineState *lvms) 234 { 235 MachineState *ms = MACHINE(lvms); 236 char *nodename; 237 MemoryRegion *flash_mem; 238 239 hwaddr flash0_base; 240 hwaddr flash0_size; 241 242 hwaddr flash1_base; 243 hwaddr flash1_size; 244 245 flash_mem = pflash_cfi01_get_memory(lvms->flash[0]); 246 flash0_base = flash_mem->addr; 247 flash0_size = memory_region_size(flash_mem); 248 249 flash_mem = pflash_cfi01_get_memory(lvms->flash[1]); 250 flash1_base = flash_mem->addr; 251 flash1_size = memory_region_size(flash_mem); 252 253 nodename = g_strdup_printf("/flash@%" PRIx64, flash0_base); 254 qemu_fdt_add_subnode(ms->fdt, nodename); 255 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 256 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 257 2, flash0_base, 2, flash0_size, 258 2, flash1_base, 2, flash1_size); 259 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 260 g_free(nodename); 261 } 262 263 static void fdt_add_rtc_node(LoongArchVirtMachineState *lvms, 264 uint32_t *pch_pic_phandle) 265 { 266 char *nodename; 267 hwaddr base = VIRT_RTC_REG_BASE; 268 hwaddr size = VIRT_RTC_LEN; 269 MachineState *ms = MACHINE(lvms); 270 271 nodename = g_strdup_printf("/rtc@%" PRIx64, base); 272 qemu_fdt_add_subnode(ms->fdt, nodename); 273 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 274 "loongson,ls7a-rtc"); 275 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); 276 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 277 VIRT_RTC_IRQ - VIRT_GSI_BASE , 0x4); 278 qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", 279 *pch_pic_phandle); 280 g_free(nodename); 281 } 282 283 static void fdt_add_uart_node(LoongArchVirtMachineState *lvms, 284 uint32_t *pch_pic_phandle, hwaddr base, 285 int irq, bool chosen) 286 { 287 char *nodename; 288 hwaddr size = VIRT_UART_SIZE; 289 MachineState *ms = MACHINE(lvms); 290 291 nodename = g_strdup_printf("/serial@%" PRIx64, base); 292 qemu_fdt_add_subnode(ms->fdt, nodename); 293 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a"); 294 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size); 295 qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000); 296 if (chosen) 297 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); 298 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", irq, 0x4); 299 qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", 300 *pch_pic_phandle); 301 g_free(nodename); 302 } 303 304 static void create_fdt(LoongArchVirtMachineState *lvms) 305 { 306 MachineState *ms = MACHINE(lvms); 307 uint8_t rng_seed[32]; 308 309 ms->fdt = create_device_tree(&lvms->fdt_size); 310 if (!ms->fdt) { 311 error_report("create_device_tree() failed"); 312 exit(1); 313 } 314 315 /* Header */ 316 qemu_fdt_setprop_string(ms->fdt, "/", "compatible", 317 "linux,dummy-loongson3"); 318 qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); 319 qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); 320 qemu_fdt_add_subnode(ms->fdt, "/chosen"); 321 322 /* Pass seed to RNG */ 323 qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); 324 qemu_fdt_setprop(ms->fdt, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed)); 325 } 326 327 static void fdt_add_cpu_nodes(const LoongArchVirtMachineState *lvms) 328 { 329 int num; 330 const MachineState *ms = MACHINE(lvms); 331 int smp_cpus = ms->smp.cpus; 332 333 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 334 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); 335 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 336 337 /* cpu nodes */ 338 for (num = smp_cpus - 1; num >= 0; num--) { 339 char *nodename = g_strdup_printf("/cpus/cpu@%d", num); 340 LoongArchCPU *cpu = LOONGARCH_CPU(qemu_get_cpu(num)); 341 CPUState *cs = CPU(cpu); 342 343 qemu_fdt_add_subnode(ms->fdt, nodename); 344 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); 345 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 346 cpu->dtb_compatible); 347 if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { 348 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", 349 ms->possible_cpus->cpus[cs->cpu_index].props.node_id); 350 } 351 qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", num); 352 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", 353 qemu_fdt_alloc_phandle(ms->fdt)); 354 g_free(nodename); 355 } 356 357 /*cpu map */ 358 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 359 360 for (num = smp_cpus - 1; num >= 0; num--) { 361 char *cpu_path = g_strdup_printf("/cpus/cpu@%d", num); 362 char *map_path; 363 364 if (ms->smp.threads > 1) { 365 map_path = g_strdup_printf( 366 "/cpus/cpu-map/socket%d/core%d/thread%d", 367 num / (ms->smp.cores * ms->smp.threads), 368 (num / ms->smp.threads) % ms->smp.cores, 369 num % ms->smp.threads); 370 } else { 371 map_path = g_strdup_printf( 372 "/cpus/cpu-map/socket%d/core%d", 373 num / ms->smp.cores, 374 num % ms->smp.cores); 375 } 376 qemu_fdt_add_path(ms->fdt, map_path); 377 qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path); 378 379 g_free(map_path); 380 g_free(cpu_path); 381 } 382 } 383 384 static void fdt_add_fw_cfg_node(const LoongArchVirtMachineState *lvms) 385 { 386 char *nodename; 387 hwaddr base = VIRT_FWCFG_BASE; 388 const MachineState *ms = MACHINE(lvms); 389 390 nodename = g_strdup_printf("/fw_cfg@%" PRIx64, base); 391 qemu_fdt_add_subnode(ms->fdt, nodename); 392 qemu_fdt_setprop_string(ms->fdt, nodename, 393 "compatible", "qemu,fw-cfg-mmio"); 394 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 395 2, base, 2, 0x18); 396 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 397 g_free(nodename); 398 } 399 400 static void fdt_add_pcie_irq_map_node(const LoongArchVirtMachineState *lvms, 401 char *nodename, 402 uint32_t *pch_pic_phandle) 403 { 404 int pin, dev; 405 uint32_t irq_map_stride = 0; 406 uint32_t full_irq_map[GPEX_NUM_IRQS *GPEX_NUM_IRQS * 10] = {}; 407 uint32_t *irq_map = full_irq_map; 408 const MachineState *ms = MACHINE(lvms); 409 410 /* This code creates a standard swizzle of interrupts such that 411 * each device's first interrupt is based on it's PCI_SLOT number. 412 * (See pci_swizzle_map_irq_fn()) 413 * 414 * We only need one entry per interrupt in the table (not one per 415 * possible slot) seeing the interrupt-map-mask will allow the table 416 * to wrap to any number of devices. 417 */ 418 419 for (dev = 0; dev < GPEX_NUM_IRQS; dev++) { 420 int devfn = dev * 0x8; 421 422 for (pin = 0; pin < GPEX_NUM_IRQS; pin++) { 423 int irq_nr = 16 + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS); 424 int i = 0; 425 426 /* Fill PCI address cells */ 427 irq_map[i] = cpu_to_be32(devfn << 8); 428 i += 3; 429 430 /* Fill PCI Interrupt cells */ 431 irq_map[i] = cpu_to_be32(pin + 1); 432 i += 1; 433 434 /* Fill interrupt controller phandle and cells */ 435 irq_map[i++] = cpu_to_be32(*pch_pic_phandle); 436 irq_map[i++] = cpu_to_be32(irq_nr); 437 438 if (!irq_map_stride) { 439 irq_map_stride = i; 440 } 441 irq_map += irq_map_stride; 442 } 443 } 444 445 446 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", full_irq_map, 447 GPEX_NUM_IRQS * GPEX_NUM_IRQS * 448 irq_map_stride * sizeof(uint32_t)); 449 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask", 450 0x1800, 0, 0, 0x7); 451 } 452 453 static void fdt_add_pcie_node(const LoongArchVirtMachineState *lvms, 454 uint32_t *pch_pic_phandle, 455 uint32_t *pch_msi_phandle) 456 { 457 char *nodename; 458 hwaddr base_mmio = VIRT_PCI_MEM_BASE; 459 hwaddr size_mmio = VIRT_PCI_MEM_SIZE; 460 hwaddr base_pio = VIRT_PCI_IO_BASE; 461 hwaddr size_pio = VIRT_PCI_IO_SIZE; 462 hwaddr base_pcie = VIRT_PCI_CFG_BASE; 463 hwaddr size_pcie = VIRT_PCI_CFG_SIZE; 464 hwaddr base = base_pcie; 465 466 const MachineState *ms = MACHINE(lvms); 467 468 nodename = g_strdup_printf("/pcie@%" PRIx64, base); 469 qemu_fdt_add_subnode(ms->fdt, nodename); 470 qemu_fdt_setprop_string(ms->fdt, nodename, 471 "compatible", "pci-host-ecam-generic"); 472 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); 473 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); 474 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); 475 qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); 476 qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, 477 PCIE_MMCFG_BUS(VIRT_PCI_CFG_SIZE - 1)); 478 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 479 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 480 2, base_pcie, 2, size_pcie); 481 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 482 1, FDT_PCI_RANGE_IOPORT, 2, VIRT_PCI_IO_OFFSET, 483 2, base_pio, 2, size_pio, 484 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 485 2, base_mmio, 2, size_mmio); 486 qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-map", 487 0, *pch_msi_phandle, 0, 0x10000); 488 489 fdt_add_pcie_irq_map_node(lvms, nodename, pch_pic_phandle); 490 491 g_free(nodename); 492 } 493 494 static void fdt_add_memory_node(MachineState *ms, 495 uint64_t base, uint64_t size, int node_id) 496 { 497 char *nodename = g_strdup_printf("/memory@%" PRIx64, base); 498 499 qemu_fdt_add_subnode(ms->fdt, nodename); 500 qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", base >> 32, base, 501 size >> 32, size); 502 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); 503 504 if (ms->numa_state && ms->numa_state->num_nodes) { 505 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", node_id); 506 } 507 508 g_free(nodename); 509 } 510 511 static void fdt_add_memory_nodes(MachineState *ms) 512 { 513 hwaddr base, size, ram_size, gap; 514 int i, nb_numa_nodes, nodes; 515 NodeInfo *numa_info; 516 517 ram_size = ms->ram_size; 518 base = VIRT_LOWMEM_BASE; 519 gap = VIRT_LOWMEM_SIZE; 520 nodes = nb_numa_nodes = ms->numa_state->num_nodes; 521 numa_info = ms->numa_state->nodes; 522 if (!nodes) { 523 nodes = 1; 524 } 525 526 for (i = 0; i < nodes; i++) { 527 if (nb_numa_nodes) { 528 size = numa_info[i].node_mem; 529 } else { 530 size = ram_size; 531 } 532 533 /* 534 * memory for the node splited into two part 535 * lowram: [base, +gap) 536 * highram: [VIRT_HIGHMEM_BASE, +(len - gap)) 537 */ 538 if (size >= gap) { 539 fdt_add_memory_node(ms, base, gap, i); 540 size -= gap; 541 base = VIRT_HIGHMEM_BASE; 542 gap = ram_size - VIRT_LOWMEM_SIZE; 543 } 544 545 if (size) { 546 fdt_add_memory_node(ms, base, size, i); 547 base += size; 548 gap -= size; 549 } 550 } 551 } 552 553 static void virt_build_smbios(LoongArchVirtMachineState *lvms) 554 { 555 MachineState *ms = MACHINE(lvms); 556 MachineClass *mc = MACHINE_GET_CLASS(lvms); 557 uint8_t *smbios_tables, *smbios_anchor; 558 size_t smbios_tables_len, smbios_anchor_len; 559 const char *product = "QEMU Virtual Machine"; 560 561 if (!lvms->fw_cfg) { 562 return; 563 } 564 565 smbios_set_defaults("QEMU", product, mc->name); 566 567 smbios_get_tables(ms, SMBIOS_ENTRY_POINT_TYPE_64, 568 NULL, 0, 569 &smbios_tables, &smbios_tables_len, 570 &smbios_anchor, &smbios_anchor_len, &error_fatal); 571 572 if (smbios_anchor) { 573 fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-tables", 574 smbios_tables, smbios_tables_len); 575 fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-anchor", 576 smbios_anchor, smbios_anchor_len); 577 } 578 } 579 580 static void virt_done(Notifier *notifier, void *data) 581 { 582 LoongArchVirtMachineState *lvms = container_of(notifier, 583 LoongArchVirtMachineState, machine_done); 584 virt_build_smbios(lvms); 585 loongarch_acpi_setup(lvms); 586 } 587 588 static void virt_powerdown_req(Notifier *notifier, void *opaque) 589 { 590 LoongArchVirtMachineState *s; 591 592 s = container_of(notifier, LoongArchVirtMachineState, powerdown_notifier); 593 acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS); 594 } 595 596 static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type) 597 { 598 /* Ensure there are no duplicate entries. */ 599 for (unsigned i = 0; i < memmap_entries; i++) { 600 assert(memmap_table[i].address != address); 601 } 602 603 memmap_table = g_renew(struct memmap_entry, memmap_table, 604 memmap_entries + 1); 605 memmap_table[memmap_entries].address = cpu_to_le64(address); 606 memmap_table[memmap_entries].length = cpu_to_le64(length); 607 memmap_table[memmap_entries].type = cpu_to_le32(type); 608 memmap_table[memmap_entries].reserved = 0; 609 memmap_entries++; 610 } 611 612 static DeviceState *create_acpi_ged(DeviceState *pch_pic, 613 LoongArchVirtMachineState *lvms) 614 { 615 DeviceState *dev; 616 MachineState *ms = MACHINE(lvms); 617 uint32_t event = ACPI_GED_PWR_DOWN_EVT; 618 619 if (ms->ram_slots) { 620 event |= ACPI_GED_MEM_HOTPLUG_EVT; 621 } 622 dev = qdev_new(TYPE_ACPI_GED); 623 qdev_prop_set_uint32(dev, "ged-event", event); 624 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 625 626 /* ged event */ 627 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, VIRT_GED_EVT_ADDR); 628 /* memory hotplug */ 629 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, VIRT_GED_MEM_ADDR); 630 /* ged regs used for reset and power down */ 631 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR); 632 633 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, 634 qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - VIRT_GSI_BASE)); 635 return dev; 636 } 637 638 static DeviceState *create_platform_bus(DeviceState *pch_pic) 639 { 640 DeviceState *dev; 641 SysBusDevice *sysbus; 642 int i, irq; 643 MemoryRegion *sysmem = get_system_memory(); 644 645 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 646 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 647 qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS); 648 qdev_prop_set_uint32(dev, "mmio_size", VIRT_PLATFORM_BUS_SIZE); 649 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 650 651 sysbus = SYS_BUS_DEVICE(dev); 652 for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { 653 irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i; 654 sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq)); 655 } 656 657 memory_region_add_subregion(sysmem, 658 VIRT_PLATFORM_BUS_BASEADDRESS, 659 sysbus_mmio_get_region(sysbus, 0)); 660 return dev; 661 } 662 663 static void virt_devices_init(DeviceState *pch_pic, 664 LoongArchVirtMachineState *lvms, 665 uint32_t *pch_pic_phandle, 666 uint32_t *pch_msi_phandle) 667 { 668 MachineClass *mc = MACHINE_GET_CLASS(lvms); 669 DeviceState *gpex_dev; 670 SysBusDevice *d; 671 PCIBus *pci_bus; 672 MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg; 673 MemoryRegion *mmio_alias, *mmio_reg; 674 int i; 675 676 gpex_dev = qdev_new(TYPE_GPEX_HOST); 677 d = SYS_BUS_DEVICE(gpex_dev); 678 sysbus_realize_and_unref(d, &error_fatal); 679 pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus; 680 lvms->pci_bus = pci_bus; 681 682 /* Map only part size_ecam bytes of ECAM space */ 683 ecam_alias = g_new0(MemoryRegion, 1); 684 ecam_reg = sysbus_mmio_get_region(d, 0); 685 memory_region_init_alias(ecam_alias, OBJECT(gpex_dev), "pcie-ecam", 686 ecam_reg, 0, VIRT_PCI_CFG_SIZE); 687 memory_region_add_subregion(get_system_memory(), VIRT_PCI_CFG_BASE, 688 ecam_alias); 689 690 /* Map PCI mem space */ 691 mmio_alias = g_new0(MemoryRegion, 1); 692 mmio_reg = sysbus_mmio_get_region(d, 1); 693 memory_region_init_alias(mmio_alias, OBJECT(gpex_dev), "pcie-mmio", 694 mmio_reg, VIRT_PCI_MEM_BASE, VIRT_PCI_MEM_SIZE); 695 memory_region_add_subregion(get_system_memory(), VIRT_PCI_MEM_BASE, 696 mmio_alias); 697 698 /* Map PCI IO port space. */ 699 pio_alias = g_new0(MemoryRegion, 1); 700 pio_reg = sysbus_mmio_get_region(d, 2); 701 memory_region_init_alias(pio_alias, OBJECT(gpex_dev), "pcie-io", pio_reg, 702 VIRT_PCI_IO_OFFSET, VIRT_PCI_IO_SIZE); 703 memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE, 704 pio_alias); 705 706 for (i = 0; i < GPEX_NUM_IRQS; i++) { 707 sysbus_connect_irq(d, i, 708 qdev_get_gpio_in(pch_pic, 16 + i)); 709 gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i); 710 } 711 712 /* Add pcie node */ 713 fdt_add_pcie_node(lvms, pch_pic_phandle, pch_msi_phandle); 714 715 /* 716 * Create uart fdt node in reverse order so that they appear 717 * in the finished device tree lowest address first 718 */ 719 for (i = VIRT_UART_COUNT; i --> 0;) { 720 hwaddr base = VIRT_UART_BASE + i * VIRT_UART_SIZE; 721 int irq = VIRT_UART_IRQ + i - VIRT_GSI_BASE; 722 serial_mm_init(get_system_memory(), base, 0, 723 qdev_get_gpio_in(pch_pic, irq), 724 115200, serial_hd(i), DEVICE_LITTLE_ENDIAN); 725 fdt_add_uart_node(lvms, pch_pic_phandle, base, irq, i == 0); 726 } 727 728 /* Network init */ 729 pci_init_nic_devices(pci_bus, mc->default_nic); 730 731 /* 732 * There are some invalid guest memory access. 733 * Create some unimplemented devices to emulate this. 734 */ 735 create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4); 736 sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE, 737 qdev_get_gpio_in(pch_pic, 738 VIRT_RTC_IRQ - VIRT_GSI_BASE)); 739 fdt_add_rtc_node(lvms, pch_pic_phandle); 740 741 /* acpi ged */ 742 lvms->acpi_ged = create_acpi_ged(pch_pic, lvms); 743 /* platform bus */ 744 lvms->platform_bus_dev = create_platform_bus(pch_pic); 745 } 746 747 static void virt_irq_init(LoongArchVirtMachineState *lvms) 748 { 749 MachineState *ms = MACHINE(lvms); 750 DeviceState *pch_pic, *pch_msi, *cpudev; 751 DeviceState *ipi, *extioi; 752 SysBusDevice *d; 753 LoongArchCPU *lacpu; 754 CPULoongArchState *env; 755 CPUState *cpu_state; 756 int cpu, pin, i, start, num; 757 uint32_t cpuintc_phandle, eiointc_phandle, pch_pic_phandle, pch_msi_phandle; 758 759 /* 760 * Extended IRQ model. 761 * | 762 * +-----------+ +-------------|--------+ +-----------+ 763 * | IPI/Timer | --> | CPUINTC(0-3)|(4-255) | <-- | IPI/Timer | 764 * +-----------+ +-------------|--------+ +-----------+ 765 * ^ | 766 * | 767 * +---------+ 768 * | EIOINTC | 769 * +---------+ 770 * ^ ^ 771 * | | 772 * +---------+ +---------+ 773 * | PCH-PIC | | PCH-MSI | 774 * +---------+ +---------+ 775 * ^ ^ ^ 776 * | | | 777 * +--------+ +---------+ +---------+ 778 * | UARTs | | Devices | | Devices | 779 * +--------+ +---------+ +---------+ 780 * 781 * Virt extended IRQ model. 782 * 783 * +-----+ +---------------+ +-------+ 784 * | IPI |--> | CPUINTC(0-255)| <-- | Timer | 785 * +-----+ +---------------+ +-------+ 786 * ^ 787 * | 788 * +-----------+ 789 * | V-EIOINTC | 790 * +-----------+ 791 * ^ ^ 792 * | | 793 * +---------+ +---------+ 794 * | PCH-PIC | | PCH-MSI | 795 * +---------+ +---------+ 796 * ^ ^ ^ 797 * | | | 798 * +--------+ +---------+ +---------+ 799 * | UARTs | | Devices | | Devices | 800 * +--------+ +---------+ +---------+ 801 */ 802 803 /* Create IPI device */ 804 ipi = qdev_new(TYPE_LOONGARCH_IPI); 805 qdev_prop_set_uint32(ipi, "num-cpu", ms->smp.cpus); 806 sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); 807 808 /* IPI iocsr memory region */ 809 memory_region_add_subregion(&lvms->system_iocsr, SMP_IPI_MAILBOX, 810 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 0)); 811 memory_region_add_subregion(&lvms->system_iocsr, MAIL_SEND_ADDR, 812 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 1)); 813 814 /* Add cpu interrupt-controller */ 815 fdt_add_cpuic_node(lvms, &cpuintc_phandle); 816 817 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 818 cpu_state = qemu_get_cpu(cpu); 819 cpudev = DEVICE(cpu_state); 820 lacpu = LOONGARCH_CPU(cpu_state); 821 env = &(lacpu->env); 822 env->address_space_iocsr = &lvms->as_iocsr; 823 824 /* connect ipi irq to cpu irq */ 825 qdev_connect_gpio_out(ipi, cpu, qdev_get_gpio_in(cpudev, IRQ_IPI)); 826 env->ipistate = ipi; 827 } 828 829 /* Create EXTIOI device */ 830 extioi = qdev_new(TYPE_LOONGARCH_EXTIOI); 831 qdev_prop_set_uint32(extioi, "num-cpu", ms->smp.cpus); 832 if (virt_is_veiointc_enabled(lvms)) { 833 qdev_prop_set_bit(extioi, "has-virtualization-extension", true); 834 } 835 sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal); 836 memory_region_add_subregion(&lvms->system_iocsr, APIC_BASE, 837 sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0)); 838 if (virt_is_veiointc_enabled(lvms)) { 839 memory_region_add_subregion(&lvms->system_iocsr, EXTIOI_VIRT_BASE, 840 sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 1)); 841 } 842 843 /* 844 * connect ext irq to the cpu irq 845 * cpu_pin[9:2] <= intc_pin[7:0] 846 */ 847 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 848 cpudev = DEVICE(qemu_get_cpu(cpu)); 849 for (pin = 0; pin < LS3A_INTC_IP; pin++) { 850 qdev_connect_gpio_out(extioi, (cpu * 8 + pin), 851 qdev_get_gpio_in(cpudev, pin + 2)); 852 } 853 } 854 855 /* Add Extend I/O Interrupt Controller node */ 856 fdt_add_eiointc_node(lvms, &cpuintc_phandle, &eiointc_phandle); 857 858 pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); 859 num = VIRT_PCH_PIC_IRQ_NUM; 860 qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num); 861 d = SYS_BUS_DEVICE(pch_pic); 862 sysbus_realize_and_unref(d, &error_fatal); 863 memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE, 864 sysbus_mmio_get_region(d, 0)); 865 memory_region_add_subregion(get_system_memory(), 866 VIRT_IOAPIC_REG_BASE + PCH_PIC_ROUTE_ENTRY_OFFSET, 867 sysbus_mmio_get_region(d, 1)); 868 memory_region_add_subregion(get_system_memory(), 869 VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO, 870 sysbus_mmio_get_region(d, 2)); 871 872 /* Connect pch_pic irqs to extioi */ 873 for (i = 0; i < num; i++) { 874 qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); 875 } 876 877 /* Add PCH PIC node */ 878 fdt_add_pch_pic_node(lvms, &eiointc_phandle, &pch_pic_phandle); 879 880 pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); 881 start = num; 882 num = EXTIOI_IRQS - start; 883 qdev_prop_set_uint32(pch_msi, "msi_irq_base", start); 884 qdev_prop_set_uint32(pch_msi, "msi_irq_num", num); 885 d = SYS_BUS_DEVICE(pch_msi); 886 sysbus_realize_and_unref(d, &error_fatal); 887 sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW); 888 for (i = 0; i < num; i++) { 889 /* Connect pch_msi irqs to extioi */ 890 qdev_connect_gpio_out(DEVICE(d), i, 891 qdev_get_gpio_in(extioi, i + start)); 892 } 893 894 /* Add PCH MSI node */ 895 fdt_add_pch_msi_node(lvms, &eiointc_phandle, &pch_msi_phandle); 896 897 virt_devices_init(pch_pic, lvms, &pch_pic_phandle, &pch_msi_phandle); 898 } 899 900 static void virt_firmware_init(LoongArchVirtMachineState *lvms) 901 { 902 char *filename = MACHINE(lvms)->firmware; 903 char *bios_name = NULL; 904 int bios_size, i; 905 BlockBackend *pflash_blk0; 906 MemoryRegion *mr; 907 908 lvms->bios_loaded = false; 909 910 /* Map legacy -drive if=pflash to machine properties */ 911 for (i = 0; i < ARRAY_SIZE(lvms->flash); i++) { 912 pflash_cfi01_legacy_drive(lvms->flash[i], 913 drive_get(IF_PFLASH, 0, i)); 914 } 915 916 virt_flash_map(lvms, get_system_memory()); 917 918 pflash_blk0 = pflash_cfi01_get_blk(lvms->flash[0]); 919 920 if (pflash_blk0) { 921 if (filename) { 922 error_report("cannot use both '-bios' and '-drive if=pflash'" 923 "options at once"); 924 exit(1); 925 } 926 lvms->bios_loaded = true; 927 return; 928 } 929 930 if (filename) { 931 bios_name = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename); 932 if (!bios_name) { 933 error_report("Could not find ROM image '%s'", filename); 934 exit(1); 935 } 936 937 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(lvms->flash[0]), 0); 938 bios_size = load_image_mr(bios_name, mr); 939 if (bios_size < 0) { 940 error_report("Could not load ROM image '%s'", bios_name); 941 exit(1); 942 } 943 g_free(bios_name); 944 lvms->bios_loaded = true; 945 } 946 } 947 948 static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr, 949 uint64_t val, unsigned size, 950 MemTxAttrs attrs) 951 { 952 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque); 953 uint64_t features; 954 955 switch (addr) { 956 case MISC_FUNC_REG: 957 if (!virt_is_veiointc_enabled(lvms)) { 958 return MEMTX_OK; 959 } 960 961 features = address_space_ldl(&lvms->as_iocsr, 962 EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, 963 attrs, NULL); 964 if (val & BIT_ULL(IOCSRM_EXTIOI_EN)) { 965 features |= BIT(EXTIOI_ENABLE); 966 } 967 if (val & BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE)) { 968 features |= BIT(EXTIOI_ENABLE_INT_ENCODE); 969 } 970 971 address_space_stl(&lvms->as_iocsr, 972 EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, 973 features, attrs, NULL); 974 break; 975 default: 976 g_assert_not_reached(); 977 } 978 979 return MEMTX_OK; 980 } 981 982 static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr, 983 uint64_t *data, 984 unsigned size, MemTxAttrs attrs) 985 { 986 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque); 987 uint64_t ret = 0; 988 int features; 989 990 switch (addr) { 991 case VERSION_REG: 992 ret = 0x11ULL; 993 break; 994 case FEATURE_REG: 995 ret = BIT(IOCSRF_MSI) | BIT(IOCSRF_EXTIOI) | BIT(IOCSRF_CSRIPI); 996 if (kvm_enabled()) { 997 ret |= BIT(IOCSRF_VM); 998 } 999 break; 1000 case VENDOR_REG: 1001 ret = 0x6e6f73676e6f6f4cULL; /* "Loongson" */ 1002 break; 1003 case CPUNAME_REG: 1004 ret = 0x303030354133ULL; /* "3A5000" */ 1005 break; 1006 case MISC_FUNC_REG: 1007 if (!virt_is_veiointc_enabled(lvms)) { 1008 ret |= BIT_ULL(IOCSRM_EXTIOI_EN); 1009 break; 1010 } 1011 1012 features = address_space_ldl(&lvms->as_iocsr, 1013 EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, 1014 attrs, NULL); 1015 if (features & BIT(EXTIOI_ENABLE)) { 1016 ret |= BIT_ULL(IOCSRM_EXTIOI_EN); 1017 } 1018 if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) { 1019 ret |= BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE); 1020 } 1021 break; 1022 default: 1023 g_assert_not_reached(); 1024 } 1025 1026 *data = ret; 1027 return MEMTX_OK; 1028 } 1029 1030 static const MemoryRegionOps virt_iocsr_misc_ops = { 1031 .read_with_attrs = virt_iocsr_misc_read, 1032 .write_with_attrs = virt_iocsr_misc_write, 1033 .endianness = DEVICE_LITTLE_ENDIAN, 1034 .valid = { 1035 .min_access_size = 4, 1036 .max_access_size = 8, 1037 }, 1038 .impl = { 1039 .min_access_size = 8, 1040 .max_access_size = 8, 1041 }, 1042 }; 1043 1044 static void fw_cfg_add_memory(MachineState *ms) 1045 { 1046 hwaddr base, size, ram_size, gap; 1047 int nb_numa_nodes, nodes; 1048 NodeInfo *numa_info; 1049 1050 ram_size = ms->ram_size; 1051 base = VIRT_LOWMEM_BASE; 1052 gap = VIRT_LOWMEM_SIZE; 1053 nodes = nb_numa_nodes = ms->numa_state->num_nodes; 1054 numa_info = ms->numa_state->nodes; 1055 if (!nodes) { 1056 nodes = 1; 1057 } 1058 1059 /* add fw_cfg memory map of node0 */ 1060 if (nb_numa_nodes) { 1061 size = numa_info[0].node_mem; 1062 } else { 1063 size = ram_size; 1064 } 1065 1066 if (size >= gap) { 1067 memmap_add_entry(base, gap, 1); 1068 size -= gap; 1069 base = VIRT_HIGHMEM_BASE; 1070 } 1071 1072 if (size) { 1073 memmap_add_entry(base, size, 1); 1074 base += size; 1075 } 1076 1077 if (nodes < 2) { 1078 return; 1079 } 1080 1081 /* add fw_cfg memory map of other nodes */ 1082 if (numa_info[0].node_mem < gap && ram_size > gap) { 1083 /* 1084 * memory map for the maining nodes splited into two part 1085 * lowram: [base, +(gap - numa_info[0].node_mem)) 1086 * highram: [VIRT_HIGHMEM_BASE, +(ram_size - gap)) 1087 */ 1088 memmap_add_entry(base, gap - numa_info[0].node_mem, 1); 1089 size = ram_size - gap; 1090 base = VIRT_HIGHMEM_BASE; 1091 } else { 1092 size = ram_size - numa_info[0].node_mem; 1093 } 1094 1095 if (size) 1096 memmap_add_entry(base, size, 1); 1097 } 1098 1099 static void virt_init(MachineState *machine) 1100 { 1101 LoongArchCPU *lacpu; 1102 const char *cpu_model = machine->cpu_type; 1103 MemoryRegion *address_space_mem = get_system_memory(); 1104 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine); 1105 int i; 1106 hwaddr base, size, ram_size = machine->ram_size; 1107 const CPUArchIdList *possible_cpus; 1108 MachineClass *mc = MACHINE_GET_CLASS(machine); 1109 CPUState *cpu; 1110 1111 if (!cpu_model) { 1112 cpu_model = LOONGARCH_CPU_TYPE_NAME("la464"); 1113 } 1114 1115 create_fdt(lvms); 1116 1117 /* Create IOCSR space */ 1118 memory_region_init_io(&lvms->system_iocsr, OBJECT(machine), NULL, 1119 machine, "iocsr", UINT64_MAX); 1120 address_space_init(&lvms->as_iocsr, &lvms->system_iocsr, "IOCSR"); 1121 memory_region_init_io(&lvms->iocsr_mem, OBJECT(machine), 1122 &virt_iocsr_misc_ops, 1123 machine, "iocsr_misc", 0x428); 1124 memory_region_add_subregion(&lvms->system_iocsr, 0, &lvms->iocsr_mem); 1125 1126 /* Init CPUs */ 1127 possible_cpus = mc->possible_cpu_arch_ids(machine); 1128 for (i = 0; i < possible_cpus->len; i++) { 1129 cpu = cpu_create(machine->cpu_type); 1130 cpu->cpu_index = i; 1131 machine->possible_cpus->cpus[i].cpu = cpu; 1132 lacpu = LOONGARCH_CPU(cpu); 1133 lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id; 1134 } 1135 fdt_add_cpu_nodes(lvms); 1136 fdt_add_memory_nodes(machine); 1137 fw_cfg_add_memory(machine); 1138 1139 /* Node0 memory */ 1140 size = ram_size; 1141 base = VIRT_LOWMEM_BASE; 1142 if (size > VIRT_LOWMEM_SIZE) { 1143 size = VIRT_LOWMEM_SIZE; 1144 } 1145 1146 memory_region_init_alias(&lvms->lowmem, NULL, "loongarch.lowram", 1147 machine->ram, base, size); 1148 memory_region_add_subregion(address_space_mem, base, &lvms->lowmem); 1149 base += size; 1150 if (ram_size - size) { 1151 base = VIRT_HIGHMEM_BASE; 1152 memory_region_init_alias(&lvms->highmem, NULL, "loongarch.highram", 1153 machine->ram, VIRT_LOWMEM_BASE + size, ram_size - size); 1154 memory_region_add_subregion(address_space_mem, base, &lvms->highmem); 1155 base += ram_size - size; 1156 } 1157 1158 /* initialize device memory address space */ 1159 if (machine->ram_size < machine->maxram_size) { 1160 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size; 1161 1162 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) { 1163 error_report("unsupported amount of memory slots: %"PRIu64, 1164 machine->ram_slots); 1165 exit(EXIT_FAILURE); 1166 } 1167 1168 if (QEMU_ALIGN_UP(machine->maxram_size, 1169 TARGET_PAGE_SIZE) != machine->maxram_size) { 1170 error_report("maximum memory size must by aligned to multiple of " 1171 "%d bytes", TARGET_PAGE_SIZE); 1172 exit(EXIT_FAILURE); 1173 } 1174 machine_memory_devices_init(machine, base, device_mem_size); 1175 } 1176 1177 /* load the BIOS image. */ 1178 virt_firmware_init(lvms); 1179 1180 /* fw_cfg init */ 1181 lvms->fw_cfg = virt_fw_cfg_init(ram_size, machine); 1182 rom_set_fw(lvms->fw_cfg); 1183 if (lvms->fw_cfg != NULL) { 1184 fw_cfg_add_file(lvms->fw_cfg, "etc/memmap", 1185 memmap_table, 1186 sizeof(struct memmap_entry) * (memmap_entries)); 1187 } 1188 fdt_add_fw_cfg_node(lvms); 1189 fdt_add_flash_node(lvms); 1190 1191 /* Initialize the IO interrupt subsystem */ 1192 virt_irq_init(lvms); 1193 platform_bus_add_all_fdt_nodes(machine->fdt, "/platic", 1194 VIRT_PLATFORM_BUS_BASEADDRESS, 1195 VIRT_PLATFORM_BUS_SIZE, 1196 VIRT_PLATFORM_BUS_IRQ); 1197 lvms->machine_done.notify = virt_done; 1198 qemu_add_machine_init_done_notifier(&lvms->machine_done); 1199 /* connect powerdown request */ 1200 lvms->powerdown_notifier.notify = virt_powerdown_req; 1201 qemu_register_powerdown_notifier(&lvms->powerdown_notifier); 1202 1203 /* 1204 * Since lowmem region starts from 0 and Linux kernel legacy start address 1205 * at 2 MiB, FDT base address is located at 1 MiB to avoid NULL pointer 1206 * access. FDT size limit with 1 MiB. 1207 * Put the FDT into the memory map as a ROM image: this will ensure 1208 * the FDT is copied again upon reset, even if addr points into RAM. 1209 */ 1210 qemu_fdt_dumpdtb(machine->fdt, lvms->fdt_size); 1211 rom_add_blob_fixed_as("fdt", machine->fdt, lvms->fdt_size, FDT_BASE, 1212 &address_space_memory); 1213 qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, 1214 rom_ptr_for_as(&address_space_memory, FDT_BASE, lvms->fdt_size)); 1215 1216 lvms->bootinfo.ram_size = ram_size; 1217 loongarch_load_kernel(machine, &lvms->bootinfo); 1218 } 1219 1220 static void virt_get_acpi(Object *obj, Visitor *v, const char *name, 1221 void *opaque, Error **errp) 1222 { 1223 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); 1224 OnOffAuto acpi = lvms->acpi; 1225 1226 visit_type_OnOffAuto(v, name, &acpi, errp); 1227 } 1228 1229 static void virt_set_acpi(Object *obj, Visitor *v, const char *name, 1230 void *opaque, Error **errp) 1231 { 1232 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); 1233 1234 visit_type_OnOffAuto(v, name, &lvms->acpi, errp); 1235 } 1236 1237 static void virt_initfn(Object *obj) 1238 { 1239 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); 1240 1241 if (tcg_enabled()) { 1242 lvms->veiointc = ON_OFF_AUTO_OFF; 1243 } 1244 lvms->acpi = ON_OFF_AUTO_AUTO; 1245 lvms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 1246 lvms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 1247 virt_flash_create(lvms); 1248 } 1249 1250 static bool memhp_type_supported(DeviceState *dev) 1251 { 1252 /* we only support pc dimm now */ 1253 return object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && 1254 !object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 1255 } 1256 1257 static void virt_mem_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 1258 Error **errp) 1259 { 1260 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), errp); 1261 } 1262 1263 static void virt_device_pre_plug(HotplugHandler *hotplug_dev, 1264 DeviceState *dev, Error **errp) 1265 { 1266 if (memhp_type_supported(dev)) { 1267 virt_mem_pre_plug(hotplug_dev, dev, errp); 1268 } 1269 } 1270 1271 static void virt_mem_unplug_request(HotplugHandler *hotplug_dev, 1272 DeviceState *dev, Error **errp) 1273 { 1274 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); 1275 1276 /* the acpi ged is always exist */ 1277 hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, 1278 errp); 1279 } 1280 1281 static void virt_device_unplug_request(HotplugHandler *hotplug_dev, 1282 DeviceState *dev, Error **errp) 1283 { 1284 if (memhp_type_supported(dev)) { 1285 virt_mem_unplug_request(hotplug_dev, dev, errp); 1286 } 1287 } 1288 1289 static void virt_mem_unplug(HotplugHandler *hotplug_dev, 1290 DeviceState *dev, Error **errp) 1291 { 1292 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); 1293 1294 hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, errp); 1295 pc_dimm_unplug(PC_DIMM(dev), MACHINE(lvms)); 1296 qdev_unrealize(dev); 1297 } 1298 1299 static void virt_device_unplug(HotplugHandler *hotplug_dev, 1300 DeviceState *dev, Error **errp) 1301 { 1302 if (memhp_type_supported(dev)) { 1303 virt_mem_unplug(hotplug_dev, dev, errp); 1304 } 1305 } 1306 1307 static void virt_mem_plug(HotplugHandler *hotplug_dev, 1308 DeviceState *dev, Error **errp) 1309 { 1310 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); 1311 1312 pc_dimm_plug(PC_DIMM(dev), MACHINE(lvms)); 1313 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged), 1314 dev, &error_abort); 1315 } 1316 1317 static void virt_device_plug_cb(HotplugHandler *hotplug_dev, 1318 DeviceState *dev, Error **errp) 1319 { 1320 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); 1321 MachineClass *mc = MACHINE_GET_CLASS(lvms); 1322 PlatformBusDevice *pbus; 1323 1324 if (device_is_dynamic_sysbus(mc, dev)) { 1325 if (lvms->platform_bus_dev) { 1326 pbus = PLATFORM_BUS_DEVICE(lvms->platform_bus_dev); 1327 platform_bus_link_device(pbus, SYS_BUS_DEVICE(dev)); 1328 } 1329 } else if (memhp_type_supported(dev)) { 1330 virt_mem_plug(hotplug_dev, dev, errp); 1331 } 1332 } 1333 1334 static HotplugHandler *virt_get_hotplug_handler(MachineState *machine, 1335 DeviceState *dev) 1336 { 1337 MachineClass *mc = MACHINE_GET_CLASS(machine); 1338 1339 if (device_is_dynamic_sysbus(mc, dev) || 1340 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI) || 1341 memhp_type_supported(dev)) { 1342 return HOTPLUG_HANDLER(machine); 1343 } 1344 return NULL; 1345 } 1346 1347 static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms) 1348 { 1349 int n; 1350 unsigned int max_cpus = ms->smp.max_cpus; 1351 1352 if (ms->possible_cpus) { 1353 assert(ms->possible_cpus->len == max_cpus); 1354 return ms->possible_cpus; 1355 } 1356 1357 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 1358 sizeof(CPUArchId) * max_cpus); 1359 ms->possible_cpus->len = max_cpus; 1360 for (n = 0; n < ms->possible_cpus->len; n++) { 1361 ms->possible_cpus->cpus[n].type = ms->cpu_type; 1362 ms->possible_cpus->cpus[n].arch_id = n; 1363 1364 ms->possible_cpus->cpus[n].props.has_socket_id = true; 1365 ms->possible_cpus->cpus[n].props.socket_id = 1366 n / (ms->smp.cores * ms->smp.threads); 1367 ms->possible_cpus->cpus[n].props.has_core_id = true; 1368 ms->possible_cpus->cpus[n].props.core_id = 1369 n / ms->smp.threads % ms->smp.cores; 1370 ms->possible_cpus->cpus[n].props.has_thread_id = true; 1371 ms->possible_cpus->cpus[n].props.thread_id = n % ms->smp.threads; 1372 } 1373 return ms->possible_cpus; 1374 } 1375 1376 static CpuInstanceProperties virt_cpu_index_to_props(MachineState *ms, 1377 unsigned cpu_index) 1378 { 1379 MachineClass *mc = MACHINE_GET_CLASS(ms); 1380 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 1381 1382 assert(cpu_index < possible_cpus->len); 1383 return possible_cpus->cpus[cpu_index].props; 1384 } 1385 1386 static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx) 1387 { 1388 int64_t socket_id; 1389 1390 if (ms->numa_state->num_nodes) { 1391 socket_id = ms->possible_cpus->cpus[idx].props.socket_id; 1392 return socket_id % ms->numa_state->num_nodes; 1393 } else { 1394 return 0; 1395 } 1396 } 1397 1398 static void virt_class_init(ObjectClass *oc, void *data) 1399 { 1400 MachineClass *mc = MACHINE_CLASS(oc); 1401 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 1402 1403 mc->init = virt_init; 1404 mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464"); 1405 mc->default_ram_id = "loongarch.ram"; 1406 mc->desc = "QEMU LoongArch Virtual Machine"; 1407 mc->max_cpus = LOONGARCH_MAX_CPUS; 1408 mc->is_default = 1; 1409 mc->default_kernel_irqchip_split = false; 1410 mc->block_default_type = IF_VIRTIO; 1411 mc->default_boot_order = "c"; 1412 mc->no_cdrom = 1; 1413 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids; 1414 mc->cpu_index_to_instance_props = virt_cpu_index_to_props; 1415 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id; 1416 mc->numa_mem_supported = true; 1417 mc->auto_enable_numa_with_memhp = true; 1418 mc->auto_enable_numa_with_memdev = true; 1419 mc->get_hotplug_handler = virt_get_hotplug_handler; 1420 mc->default_nic = "virtio-net-pci"; 1421 hc->plug = virt_device_plug_cb; 1422 hc->pre_plug = virt_device_pre_plug; 1423 hc->unplug_request = virt_device_unplug_request; 1424 hc->unplug = virt_device_unplug; 1425 1426 object_class_property_add(oc, "acpi", "OnOffAuto", 1427 virt_get_acpi, virt_set_acpi, 1428 NULL, NULL); 1429 object_class_property_set_description(oc, "acpi", 1430 "Enable ACPI"); 1431 object_class_property_add(oc, "v-eiointc", "OnOffAuto", 1432 virt_get_veiointc, virt_set_veiointc, 1433 NULL, NULL); 1434 object_class_property_set_description(oc, "v-eiointc", 1435 "Enable Virt Extend I/O Interrupt Controller."); 1436 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 1437 #ifdef CONFIG_TPM 1438 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 1439 #endif 1440 } 1441 1442 static const TypeInfo virt_machine_types[] = { 1443 { 1444 .name = TYPE_LOONGARCH_VIRT_MACHINE, 1445 .parent = TYPE_MACHINE, 1446 .instance_size = sizeof(LoongArchVirtMachineState), 1447 .class_init = virt_class_init, 1448 .instance_init = virt_initfn, 1449 .interfaces = (InterfaceInfo[]) { 1450 { TYPE_HOTPLUG_HANDLER }, 1451 { } 1452 }, 1453 } 1454 }; 1455 1456 DEFINE_TYPES(virt_machine_types) 1457