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