1 /* 2 * QEMU RISC-V VirtIO Board 3 * 4 * Copyright (c) 2017 SiFive, Inc. 5 * 6 * RISC-V machine with 16550a UART and VirtIO MMIO 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms and conditions of the GNU General Public License, 10 * version 2 or later, as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along with 18 * this program. If not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include "qemu/osdep.h" 22 #include "qemu/units.h" 23 #include "qemu/log.h" 24 #include "qemu/error-report.h" 25 #include "qapi/error.h" 26 #include "hw/boards.h" 27 #include "hw/loader.h" 28 #include "hw/sysbus.h" 29 #include "hw/char/serial.h" 30 #include "target/riscv/cpu.h" 31 #include "hw/riscv/riscv_hart.h" 32 #include "hw/riscv/sifive_plic.h" 33 #include "hw/riscv/sifive_clint.h" 34 #include "hw/riscv/sifive_test.h" 35 #include "hw/riscv/virt.h" 36 #include "hw/riscv/boot.h" 37 #include "chardev/char.h" 38 #include "sysemu/arch_init.h" 39 #include "sysemu/device_tree.h" 40 #include "sysemu/sysemu.h" 41 #include "exec/address-spaces.h" 42 #include "hw/pci/pci.h" 43 #include "hw/pci-host/gpex.h" 44 45 #include <libfdt.h> 46 47 #if defined(TARGET_RISCV32) 48 # define BIOS_FILENAME "opensbi-riscv32-virt-fw_jump.bin" 49 #else 50 # define BIOS_FILENAME "opensbi-riscv64-virt-fw_jump.bin" 51 #endif 52 53 static const struct MemmapEntry { 54 hwaddr base; 55 hwaddr size; 56 } virt_memmap[] = { 57 [VIRT_DEBUG] = { 0x0, 0x100 }, 58 [VIRT_MROM] = { 0x1000, 0x11000 }, 59 [VIRT_TEST] = { 0x100000, 0x1000 }, 60 [VIRT_CLINT] = { 0x2000000, 0x10000 }, 61 [VIRT_PLIC] = { 0xc000000, 0x4000000 }, 62 [VIRT_UART0] = { 0x10000000, 0x100 }, 63 [VIRT_VIRTIO] = { 0x10001000, 0x1000 }, 64 [VIRT_DRAM] = { 0x80000000, 0x0 }, 65 [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 }, 66 [VIRT_PCIE_PIO] = { 0x03000000, 0x00010000 }, 67 [VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 }, 68 }; 69 70 static void create_pcie_irq_map(void *fdt, char *nodename, 71 uint32_t plic_phandle) 72 { 73 int pin, dev; 74 uint32_t 75 full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * FDT_INT_MAP_WIDTH] = {}; 76 uint32_t *irq_map = full_irq_map; 77 78 /* This code creates a standard swizzle of interrupts such that 79 * each device's first interrupt is based on it's PCI_SLOT number. 80 * (See pci_swizzle_map_irq_fn()) 81 * 82 * We only need one entry per interrupt in the table (not one per 83 * possible slot) seeing the interrupt-map-mask will allow the table 84 * to wrap to any number of devices. 85 */ 86 for (dev = 0; dev < GPEX_NUM_IRQS; dev++) { 87 int devfn = dev * 0x8; 88 89 for (pin = 0; pin < GPEX_NUM_IRQS; pin++) { 90 int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS); 91 int i = 0; 92 93 irq_map[i] = cpu_to_be32(devfn << 8); 94 95 i += FDT_PCI_ADDR_CELLS; 96 irq_map[i] = cpu_to_be32(pin + 1); 97 98 i += FDT_PCI_INT_CELLS; 99 irq_map[i++] = cpu_to_be32(plic_phandle); 100 101 i += FDT_PLIC_ADDR_CELLS; 102 irq_map[i] = cpu_to_be32(irq_nr); 103 104 irq_map += FDT_INT_MAP_WIDTH; 105 } 106 } 107 108 qemu_fdt_setprop(fdt, nodename, "interrupt-map", 109 full_irq_map, sizeof(full_irq_map)); 110 111 qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", 112 0x1800, 0, 0, 0x7); 113 } 114 115 static void create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap, 116 uint64_t mem_size, const char *cmdline) 117 { 118 void *fdt; 119 int cpu; 120 uint32_t *cells; 121 char *nodename; 122 uint32_t plic_phandle, phandle = 1; 123 int i; 124 125 fdt = s->fdt = create_device_tree(&s->fdt_size); 126 if (!fdt) { 127 error_report("create_device_tree() failed"); 128 exit(1); 129 } 130 131 qemu_fdt_setprop_string(fdt, "/", "model", "riscv-virtio,qemu"); 132 qemu_fdt_setprop_string(fdt, "/", "compatible", "riscv-virtio"); 133 qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); 134 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); 135 136 qemu_fdt_add_subnode(fdt, "/soc"); 137 qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0); 138 qemu_fdt_setprop_string(fdt, "/soc", "compatible", "simple-bus"); 139 qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2); 140 qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2); 141 142 nodename = g_strdup_printf("/memory@%lx", 143 (long)memmap[VIRT_DRAM].base); 144 qemu_fdt_add_subnode(fdt, nodename); 145 qemu_fdt_setprop_cells(fdt, nodename, "reg", 146 memmap[VIRT_DRAM].base >> 32, memmap[VIRT_DRAM].base, 147 mem_size >> 32, mem_size); 148 qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory"); 149 g_free(nodename); 150 151 qemu_fdt_add_subnode(fdt, "/cpus"); 152 qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency", 153 SIFIVE_CLINT_TIMEBASE_FREQ); 154 qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); 155 qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); 156 157 for (cpu = s->soc.num_harts - 1; cpu >= 0; cpu--) { 158 int cpu_phandle = phandle++; 159 int intc_phandle; 160 nodename = g_strdup_printf("/cpus/cpu@%d", cpu); 161 char *intc = g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); 162 char *isa = riscv_isa_string(&s->soc.harts[cpu]); 163 qemu_fdt_add_subnode(fdt, nodename); 164 qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv48"); 165 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", isa); 166 qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv"); 167 qemu_fdt_setprop_string(fdt, nodename, "status", "okay"); 168 qemu_fdt_setprop_cell(fdt, nodename, "reg", cpu); 169 qemu_fdt_setprop_string(fdt, nodename, "device_type", "cpu"); 170 qemu_fdt_setprop_cell(fdt, nodename, "phandle", cpu_phandle); 171 intc_phandle = phandle++; 172 qemu_fdt_add_subnode(fdt, intc); 173 qemu_fdt_setprop_cell(fdt, intc, "phandle", intc_phandle); 174 qemu_fdt_setprop_string(fdt, intc, "compatible", "riscv,cpu-intc"); 175 qemu_fdt_setprop(fdt, intc, "interrupt-controller", NULL, 0); 176 qemu_fdt_setprop_cell(fdt, intc, "#interrupt-cells", 1); 177 g_free(isa); 178 g_free(intc); 179 g_free(nodename); 180 } 181 182 /* Add cpu-topology node */ 183 qemu_fdt_add_subnode(fdt, "/cpus/cpu-map"); 184 qemu_fdt_add_subnode(fdt, "/cpus/cpu-map/cluster0"); 185 for (cpu = s->soc.num_harts - 1; cpu >= 0; cpu--) { 186 char *core_nodename = g_strdup_printf("/cpus/cpu-map/cluster0/core%d", 187 cpu); 188 char *cpu_nodename = g_strdup_printf("/cpus/cpu@%d", cpu); 189 uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, cpu_nodename); 190 qemu_fdt_add_subnode(fdt, core_nodename); 191 qemu_fdt_setprop_cell(fdt, core_nodename, "cpu", intc_phandle); 192 g_free(core_nodename); 193 g_free(cpu_nodename); 194 } 195 196 cells = g_new0(uint32_t, s->soc.num_harts * 4); 197 for (cpu = 0; cpu < s->soc.num_harts; cpu++) { 198 nodename = 199 g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); 200 uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename); 201 cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); 202 cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); 203 cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle); 204 cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); 205 g_free(nodename); 206 } 207 nodename = g_strdup_printf("/soc/clint@%lx", 208 (long)memmap[VIRT_CLINT].base); 209 qemu_fdt_add_subnode(fdt, nodename); 210 qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,clint0"); 211 qemu_fdt_setprop_cells(fdt, nodename, "reg", 212 0x0, memmap[VIRT_CLINT].base, 213 0x0, memmap[VIRT_CLINT].size); 214 qemu_fdt_setprop(fdt, nodename, "interrupts-extended", 215 cells, s->soc.num_harts * sizeof(uint32_t) * 4); 216 g_free(cells); 217 g_free(nodename); 218 219 plic_phandle = phandle++; 220 cells = g_new0(uint32_t, s->soc.num_harts * 4); 221 for (cpu = 0; cpu < s->soc.num_harts; cpu++) { 222 nodename = 223 g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); 224 uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename); 225 cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); 226 cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT); 227 cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle); 228 cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT); 229 g_free(nodename); 230 } 231 nodename = g_strdup_printf("/soc/interrupt-controller@%lx", 232 (long)memmap[VIRT_PLIC].base); 233 qemu_fdt_add_subnode(fdt, nodename); 234 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 235 FDT_PLIC_ADDR_CELLS); 236 qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 237 FDT_PLIC_INT_CELLS); 238 qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,plic0"); 239 qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); 240 qemu_fdt_setprop(fdt, nodename, "interrupts-extended", 241 cells, s->soc.num_harts * sizeof(uint32_t) * 4); 242 qemu_fdt_setprop_cells(fdt, nodename, "reg", 243 0x0, memmap[VIRT_PLIC].base, 244 0x0, memmap[VIRT_PLIC].size); 245 qemu_fdt_setprop_cell(fdt, nodename, "riscv,ndev", VIRTIO_NDEV); 246 qemu_fdt_setprop_cell(fdt, nodename, "phandle", plic_phandle); 247 plic_phandle = qemu_fdt_get_phandle(fdt, nodename); 248 g_free(cells); 249 g_free(nodename); 250 251 for (i = 0; i < VIRTIO_COUNT; i++) { 252 nodename = g_strdup_printf("/virtio_mmio@%lx", 253 (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size)); 254 qemu_fdt_add_subnode(fdt, nodename); 255 qemu_fdt_setprop_string(fdt, nodename, "compatible", "virtio,mmio"); 256 qemu_fdt_setprop_cells(fdt, nodename, "reg", 257 0x0, memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 258 0x0, memmap[VIRT_VIRTIO].size); 259 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 260 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", VIRTIO_IRQ + i); 261 g_free(nodename); 262 } 263 264 nodename = g_strdup_printf("/soc/pci@%lx", 265 (long) memmap[VIRT_PCIE_ECAM].base); 266 qemu_fdt_add_subnode(fdt, nodename); 267 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 268 FDT_PCI_ADDR_CELLS); 269 qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 270 FDT_PCI_INT_CELLS); 271 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0x2); 272 qemu_fdt_setprop_string(fdt, nodename, "compatible", 273 "pci-host-ecam-generic"); 274 qemu_fdt_setprop_string(fdt, nodename, "device_type", "pci"); 275 qemu_fdt_setprop_cell(fdt, nodename, "linux,pci-domain", 0); 276 qemu_fdt_setprop_cells(fdt, nodename, "bus-range", 0, 277 memmap[VIRT_PCIE_ECAM].size / 278 PCIE_MMCFG_SIZE_MIN - 1); 279 qemu_fdt_setprop(fdt, nodename, "dma-coherent", NULL, 0); 280 qemu_fdt_setprop_cells(fdt, nodename, "reg", 0, memmap[VIRT_PCIE_ECAM].base, 281 0, memmap[VIRT_PCIE_ECAM].size); 282 qemu_fdt_setprop_sized_cells(fdt, nodename, "ranges", 283 1, FDT_PCI_RANGE_IOPORT, 2, 0, 284 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size, 285 1, FDT_PCI_RANGE_MMIO, 286 2, memmap[VIRT_PCIE_MMIO].base, 287 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size); 288 create_pcie_irq_map(fdt, nodename, plic_phandle); 289 g_free(nodename); 290 291 nodename = g_strdup_printf("/test@%lx", 292 (long)memmap[VIRT_TEST].base); 293 qemu_fdt_add_subnode(fdt, nodename); 294 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,test0"); 295 qemu_fdt_setprop_cells(fdt, nodename, "reg", 296 0x0, memmap[VIRT_TEST].base, 297 0x0, memmap[VIRT_TEST].size); 298 g_free(nodename); 299 300 nodename = g_strdup_printf("/uart@%lx", 301 (long)memmap[VIRT_UART0].base); 302 qemu_fdt_add_subnode(fdt, nodename); 303 qemu_fdt_setprop_string(fdt, nodename, "compatible", "ns16550a"); 304 qemu_fdt_setprop_cells(fdt, nodename, "reg", 305 0x0, memmap[VIRT_UART0].base, 306 0x0, memmap[VIRT_UART0].size); 307 qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", 3686400); 308 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 309 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", UART0_IRQ); 310 311 qemu_fdt_add_subnode(fdt, "/chosen"); 312 qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename); 313 if (cmdline) { 314 qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); 315 } 316 g_free(nodename); 317 } 318 319 320 static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, 321 hwaddr ecam_base, hwaddr ecam_size, 322 hwaddr mmio_base, hwaddr mmio_size, 323 hwaddr pio_base, 324 DeviceState *plic, bool link_up) 325 { 326 DeviceState *dev; 327 MemoryRegion *ecam_alias, *ecam_reg; 328 MemoryRegion *mmio_alias, *mmio_reg; 329 qemu_irq irq; 330 int i; 331 332 dev = qdev_create(NULL, TYPE_GPEX_HOST); 333 334 qdev_init_nofail(dev); 335 336 ecam_alias = g_new0(MemoryRegion, 1); 337 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); 338 memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", 339 ecam_reg, 0, ecam_size); 340 memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias); 341 342 mmio_alias = g_new0(MemoryRegion, 1); 343 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); 344 memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", 345 mmio_reg, mmio_base, mmio_size); 346 memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias); 347 348 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); 349 350 for (i = 0; i < GPEX_NUM_IRQS; i++) { 351 irq = qdev_get_gpio_in(plic, PCIE_IRQ + i); 352 353 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); 354 gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i); 355 } 356 357 return dev; 358 } 359 360 static void riscv_virt_board_init(MachineState *machine) 361 { 362 const struct MemmapEntry *memmap = virt_memmap; 363 364 RISCVVirtState *s = g_new0(RISCVVirtState, 1); 365 MemoryRegion *system_memory = get_system_memory(); 366 MemoryRegion *main_mem = g_new(MemoryRegion, 1); 367 MemoryRegion *mask_rom = g_new(MemoryRegion, 1); 368 char *plic_hart_config; 369 size_t plic_hart_config_len; 370 int i; 371 unsigned int smp_cpus = machine->smp.cpus; 372 373 /* Initialize SOC */ 374 object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc), 375 TYPE_RISCV_HART_ARRAY, &error_abort, NULL); 376 object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type", 377 &error_abort); 378 object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts", 379 &error_abort); 380 object_property_set_bool(OBJECT(&s->soc), true, "realized", 381 &error_abort); 382 383 /* register system main memory (actual RAM) */ 384 memory_region_init_ram(main_mem, NULL, "riscv_virt_board.ram", 385 machine->ram_size, &error_fatal); 386 memory_region_add_subregion(system_memory, memmap[VIRT_DRAM].base, 387 main_mem); 388 389 /* create device tree */ 390 create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); 391 392 /* boot rom */ 393 memory_region_init_rom(mask_rom, NULL, "riscv_virt_board.mrom", 394 memmap[VIRT_MROM].size, &error_fatal); 395 memory_region_add_subregion(system_memory, memmap[VIRT_MROM].base, 396 mask_rom); 397 398 riscv_find_and_load_firmware(machine, BIOS_FILENAME, 399 memmap[VIRT_DRAM].base); 400 401 if (machine->kernel_filename) { 402 uint64_t kernel_entry = riscv_load_kernel(machine->kernel_filename); 403 404 if (machine->initrd_filename) { 405 hwaddr start; 406 hwaddr end = riscv_load_initrd(machine->initrd_filename, 407 machine->ram_size, kernel_entry, 408 &start); 409 qemu_fdt_setprop_cell(s->fdt, "/chosen", 410 "linux,initrd-start", start); 411 qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", 412 end); 413 } 414 } 415 416 /* reset vector */ 417 uint32_t reset_vec[8] = { 418 0x00000297, /* 1: auipc t0, %pcrel_hi(dtb) */ 419 0x02028593, /* addi a1, t0, %pcrel_lo(1b) */ 420 0xf1402573, /* csrr a0, mhartid */ 421 #if defined(TARGET_RISCV32) 422 0x0182a283, /* lw t0, 24(t0) */ 423 #elif defined(TARGET_RISCV64) 424 0x0182b283, /* ld t0, 24(t0) */ 425 #endif 426 0x00028067, /* jr t0 */ 427 0x00000000, 428 memmap[VIRT_DRAM].base, /* start: .dword memmap[VIRT_DRAM].base */ 429 0x00000000, 430 /* dtb: */ 431 }; 432 433 /* copy in the reset vector in little_endian byte order */ 434 for (i = 0; i < sizeof(reset_vec) >> 2; i++) { 435 reset_vec[i] = cpu_to_le32(reset_vec[i]); 436 } 437 rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), 438 memmap[VIRT_MROM].base, &address_space_memory); 439 440 /* copy in the device tree */ 441 if (fdt_pack(s->fdt) || fdt_totalsize(s->fdt) > 442 memmap[VIRT_MROM].size - sizeof(reset_vec)) { 443 error_report("not enough space to store device-tree"); 444 exit(1); 445 } 446 qemu_fdt_dumpdtb(s->fdt, fdt_totalsize(s->fdt)); 447 rom_add_blob_fixed_as("mrom.fdt", s->fdt, fdt_totalsize(s->fdt), 448 memmap[VIRT_MROM].base + sizeof(reset_vec), 449 &address_space_memory); 450 451 /* create PLIC hart topology configuration string */ 452 plic_hart_config_len = (strlen(VIRT_PLIC_HART_CONFIG) + 1) * smp_cpus; 453 plic_hart_config = g_malloc0(plic_hart_config_len); 454 for (i = 0; i < smp_cpus; i++) { 455 if (i != 0) { 456 strncat(plic_hart_config, ",", plic_hart_config_len); 457 } 458 strncat(plic_hart_config, VIRT_PLIC_HART_CONFIG, plic_hart_config_len); 459 plic_hart_config_len -= (strlen(VIRT_PLIC_HART_CONFIG) + 1); 460 } 461 462 /* MMIO */ 463 s->plic = sifive_plic_create(memmap[VIRT_PLIC].base, 464 plic_hart_config, 465 VIRT_PLIC_NUM_SOURCES, 466 VIRT_PLIC_NUM_PRIORITIES, 467 VIRT_PLIC_PRIORITY_BASE, 468 VIRT_PLIC_PENDING_BASE, 469 VIRT_PLIC_ENABLE_BASE, 470 VIRT_PLIC_ENABLE_STRIDE, 471 VIRT_PLIC_CONTEXT_BASE, 472 VIRT_PLIC_CONTEXT_STRIDE, 473 memmap[VIRT_PLIC].size); 474 sifive_clint_create(memmap[VIRT_CLINT].base, 475 memmap[VIRT_CLINT].size, smp_cpus, 476 SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); 477 sifive_test_create(memmap[VIRT_TEST].base); 478 479 for (i = 0; i < VIRTIO_COUNT; i++) { 480 sysbus_create_simple("virtio-mmio", 481 memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 482 qdev_get_gpio_in(DEVICE(s->plic), VIRTIO_IRQ + i)); 483 } 484 485 gpex_pcie_init(system_memory, 486 memmap[VIRT_PCIE_ECAM].base, 487 memmap[VIRT_PCIE_ECAM].size, 488 memmap[VIRT_PCIE_MMIO].base, 489 memmap[VIRT_PCIE_MMIO].size, 490 memmap[VIRT_PCIE_PIO].base, 491 DEVICE(s->plic), true); 492 493 serial_mm_init(system_memory, memmap[VIRT_UART0].base, 494 0, qdev_get_gpio_in(DEVICE(s->plic), UART0_IRQ), 399193, 495 serial_hd(0), DEVICE_LITTLE_ENDIAN); 496 497 g_free(plic_hart_config); 498 } 499 500 static void riscv_virt_board_machine_init(MachineClass *mc) 501 { 502 mc->desc = "RISC-V VirtIO Board (Privileged ISA v1.10)"; 503 mc->init = riscv_virt_board_init; 504 mc->max_cpus = 8; /* hardcoded limit in BBL */ 505 mc->default_cpu_type = VIRT_CPU; 506 } 507 508 DEFINE_MACHINE("virt", riscv_virt_board_machine_init) 509